TW201923193A - Sewing machine - Google Patents

Abstract

This sewing machine 100, which sews an interlocking element coupled body 13 of a slide fastener 10 to an end edge part 2a of an article 2 to be sewn, said interlocking element coupled body being obtained by coupling a plurality of interlocking elements 11 using a string-like body 12, is provided with: a fabric feeding mechanism for feeding the article to be sewn; and a fastener conveyance mechanism 40 for conveying the interlocking element coupled body. The fastener conveyance mechanism is provided with: a conveyance gear 41 provided with teeth which interlock with the interlocking elements of the interlocking element coupled body; a conveyance motor 42 which imparts rotational motion to the conveyance gear; and a fastener guide 24 which guides the interlocking element coupled body in the same direction as the feeding direction of the article to be sewn. Accordingly, excellent sewing of the slide fastener can be performed.

Description

Sewing machine

The present invention relates to a sewing machine in which a slide zipper in which an engagement element is coupled by a rope body is sewn.

A sliding zipper is known which includes a pair of engaging element connecting bodies for connecting a plurality of engaging elements by a rope-like body, and a slider for engaging and separating a pair of engaging element connecting bodies.
The engaging element of the sliding zipper has a leg portion fixed to the string body, and a head portion that meshes with each other when connecting the pair of engaging element connecting bodies; and respective engaging elements of the engaging element connecting bodies, The state in which the heads are aligned in the same direction is fixed to the string body (for example, refer to Patent Document 1).
[Previous Technical Literature]
[Patent Literature]

[Patent Document 1] Japanese Patent Publication No. 40-13870

[Technical Problem to be Solved by the Invention]

In the above-described slip zipper, the engaging element connecting body is sewn to the edge portion of the object to be sewn as a sheet-like material by a sewing machine by an overlock sewing machine.
However, when the meshing element coupling body is sewn, in order to obtain sufficient restraining force for each of the meshing elements after sewing, it is necessary to perform sewing so that the needle position is at an appropriate position, but the conventional sewing machine The engaging element coupling body cannot be fed properly.
Therefore, it is not possible to perform sewing so that each of the meshing elements after sewing is sufficiently restrained.

The present invention has an object of providing a sewing machine in which an engaging element coupling body can be appropriately sewn.

[Technical solution to solve the problem]

The invention described in claim 1 is:
A sewing machine for sewing a meshing element connecting body of a sliding zipper of a meshing element connecting body having a plurality of meshing elements connected by a string body to an edge portion of the object to be sewn, characterized in that:
a feeding mechanism for feeding the object to be sewn; and a zipper conveying mechanism for conveying the engaging element connecting body;
The zipper transport mechanism includes: a transport gear; and a tooth that meshes with the meshing element of the meshing element connecting body;
The conveyance motor applies a rotation operation to the conveyance gear, and the zipper guide guides the engagement element coupling body in the same direction as the feed direction of the workpiece to be sewn.

The invention of claim 2 is the sewing machine of claim 1.
The conveying gear that meshes with the meshing element on the upstream side in the feeding direction of the object to be sewn at the needle drop position, and the downstream side of the feeding direction of the object to be sewn at the needle drop position. The aforementioned handling gear of the engaging element.

The invention of claim 3 is the sewing machine of claim 1 or 2,
The zipper guide has a feed groove formed in the needle plate, and guides the plurality of meshing elements of the meshing element connecting body in the same direction as the feeding direction of the workpiece to be sewn.

The invention of claim 4, in the sewing machine according to any one of claims 1 to 3,
The zipper pusher is configured to prevent the engagement element coupling body conveyed by the conveyance gear from being detached upward.

The invention of claim 5, wherein the invention of any one of claims 1 to 4,
The conveyance gear is supported so as to be movable in a direction away from the needle drop position.

The invention of claim 6 is the sewing machine of claim 5
The conveyance gear is supported so as to be movable together with the conveyance motor in a direction away from the needle drop position.

The invention of claim 7 is the sewing machine of claim 5 or 6,
The actuator includes an actuator that serves as a movement operation of the conveyance gear in a direction away from the needle drop position.

The invention of claim 8 is the sewing machine of any one of claims 1 to 7,
A seam of a lock stitch is formed, and the engaging element connecting body is sewn to the edge portion of the object to be sewn.

The invention of claim 9 is the sewing machine of any one of claims 1 to 8,
It is a zigzag sewing machine.

The invention of claim 10, in the sewing machine according to any one of claims 1 to 9,
The aforementioned sewing machine has:
The sewing machine motor moves the sewing needle up and down;
The encoder detects the output shaft angle of the sewing machine motor; and the control device controls the transport motor;
The aforementioned control device is:
Each time the needle is dropped, the transport motor is driven at a predetermined timing based on the detection of the encoder, and the meshing element coupling body is moved by the amount of movement in the feeding direction until the next needle drop point.

The invention of claim 11 is the sewing machine of claim 10.
The system includes: a setting input unit, and a parameter including a type, a sequence, a number of stitches, and an amount of operation of the sewing;
The control device controls the feeding mechanism and the slide transport mechanism so as to perform sewing in accordance with the parameters input from the setting input unit.

The invention of claim 12 is the sewing machine of claim 10 or 11,
The aforementioned sewing machine has:
The oscillating needle motor arbitrarily swings the sewing needle in a direction orthogonal to a conveying direction of the engaging element connecting body;
The aforementioned control device is:
Each time the needle is dropped, the needle motor is driven at a predetermined timing according to the detection of the encoder, and the needle is tilted up to the amount of the needle until the next needle drop point.

The invention of claim 13 is the sewing machine of any one of claims 10 to 12,
The feeding mechanism is provided with a feed adjustment motor;
The aforementioned control device is:
Each time the needle is dropped, the feed adjustment motor is driven at a predetermined timing based on the detection of the encoder, and the amount of movement of the workpiece to be moved in the feed direction up to the next needle drop point is moved.

[Effects of the Invention]

In the present invention, the zipper transport mechanism includes a transport gear that includes teeth that mesh with the meshing element of the meshing element coupling body, a transport motor that imparts a rotational motion to the transport gear, and a zipper guide that engages the component The connected body is guided in the same direction as the feeding direction of the object to be sewn.
Thereby, the teeth of the conveyance gear can be conveyed so as to mesh with the head of the continuous engagement element of the meshing element coupling body, so that the meshing element coupling body can be arbitrarily conveyed to the target position with good precision. Therefore, the engagement element coupling body can be appropriately fed, whereby the needle drop point of the engagement element coupling body can be positioned, and the engagement of the engagement element coupling body with the workpiece can be properly performed.

[First Embodiment]
Hereinafter, as a first embodiment of the present invention, a slide fastener product 1 and a sawtooth sewing machine 100 suitable for sewing the slide fastener product 1 will be described in detail.
Fig. 1 is a plan view of the slide fastener product 1.
Further, as the slide fastener product 1, non-commodity items are included in addition to daily necessities such as clothes, shoes, and bags. In other words, the product includes a product in which the slide fastener 10 can be used for bonding the slat-like objects to be sewn, and opening or closing the notched portion or the opening of the object to be sewn.

The slide fastener product 1 includes a slide fastener 10 and a workpiece 2 to which a slide fastener 10 is sewn and sewn.
The material to be sewn 2 of the slide fastener product 1 includes all sheet-like materials that can be sewn. For example, the cloth to be sewn 2 can be woven, knitted, leather, synthetic resin or the like.
The object to be sewn 2 includes two end edge portions 2a that face each other, and an overlapping portion 2b that folds the material of the object to be sewn 2 toward the back side is formed in the end edge portion 2a.
Further, a pair of meshing element coupling bodies 13 of the slide fastener 10 are individually sewn along the end edge portion 2a at each end edge portion 2a.

In the present embodiment, the end edge portions 2a of the workpiece 2 to be sewn into the slide fastener product 1 are linear. Further, the shape of each end edge portion 2a is merely an example, and it is needless to say that the slide zipper 10 can be used even in a curved shape or another curved shape.
Further, in the following description of the slide fastener product 1 and the slide fastener 10, the direction along the edge portion 2a of the workpiece 2 is in the Y-axis direction, parallel to the plane of the object to be sewn and orthogonal. The direction in the Y-axis direction is the X-axis direction, and the direction perpendicular to the plane of the object to be sewn is the Z-axis direction.
Further, the pair of engaging element connecting bodies 13 of the slide fastener 10 are sewn to the end edge portion 2a of the workpiece 2 in the Y-axis direction, and the direction in which the engaging elements are joined by the slider 14 (the upper side of the paper surface in Fig. 1) is "front", the operation direction (the lower side of the paper surface in Fig. 1) for separating the meshing element connecting bodies 13 is "rear", and the left-hand side facing the front is "" Left, right hand side is "right". Further, the current side of the paper surface perpendicular to the paper surface of Fig. 1 is "up", and the inner side of the paper surface is "lower".
According to this definition, in the first drawing, the workpiece 2 is illustrated in a state in which the surface of the workpiece 2 faces the upper side and the inside faces the lower side.

[slip zipper]
Figure 2 is an enlarged plan view of the slip zipper 10.
As shown in FIGS. 1 and 2, the slide fastener 10 includes a pair of meshing element connecting bodies 13 that connect a plurality of meshing elements 11 by a string body 12, and a slider 14 that performs one. Bonding and separation of the engaging element connecting body 13.
The engaging element 11 is provided with a leg portion 111 penetrating the string-like body 12, and a head portion 112 projecting from the leg portion 111, and the string-like body is equidistantly spaced in a state in which the plurality of engaging elements 11 are oriented in the same direction as the head portion 112. 12 is fixed to constitute the engaging element connecting body 13.

The string-like body 12 that connects the respective meshing elements 11 may have a strength in a tether shape and a low stretchability, and a monofilament, a multifilament, a crepe, a crepe, or the like, or a composite material thereof may be used. The structure or type is not particularly limited.
In addition, the string-like body 12 may be a soft one that is easy to be flexed, and may be rigid to the extent that it is flexible and maintains a straight shape without receiving an external force.

The pair of engaging element coupling bodies 13 are sewn to the respective edge portions 2a of the workpiece 2 so that the head portions 112 of the respective engaging elements 11 face each other.
In the slider 14, a guide path through which the respective engaging element connecting bodies 13 are individually passed is formed at the front end portion, and the two guiding paths meet inside, and become a guiding path at the rear end portion.
That is, when the separated pair of engaging element coupling bodies 13 enter the respective guiding paths on the front end side of the slider 14, the head portions 112 of the respective engaging elements 11 of the engaging element connecting bodies 13 are engaged to the passing slider The pair of meshing element connecting bodies 13 are connected to the rear end portion of the rear end portion 14.
Further, conversely, when the combined pair of engaging element coupling bodies 13 enter the guiding path on the rear end side of the slider 14, the meshing state of the head 112 of the respective engaging elements 11 of the engaging element connecting bodies 13 is released. The pair of engagement element coupling bodies 13 are separated by the front end portion of the slider 14 .

Fig. 3 is a perspective view of the engaging element 11. Fig. 3 is a view showing the engaging elements 11 of the engaging element coupling body 13 on the left side in Figs. 1 and 2 . According to the third drawing, in the following description of the engaging element 11, the respective portions will be described in the direction of the engaging element 11 of the engaging element connecting body 13 on the left side.
Further, the meshing element 11 of the engaging element coupling body 13 on the right side has only the direction of the head portion 112 being opposite to each other, and the structure itself is the same.

The engaging element 11 is made of a thermoplastic resin such as polyamine, polyoxymethylene, polypropylene, or polybutylene terephthalate, and is integrally formed on the string body 12 by injection molding. form.
Further, the meshing element 11 is not limited to a thermoplastic resin, and may be formed by die-casting using a metal such as an aluminum alloy, a zinc alloy, or a magnesium alloy.

As shown in FIGS. 2 and 3, each of the engaging elements 11 has a substantially rectangular parallelepiped shape, and the string-like body 12 penetrates from the side surface 116 of one of the width directions of the leg portion 111 to the other side surface 117. The state is fixed to the foot 111.
In addition, the "width direction of the leg portion 111" indicates the direction along the longitudinal direction of the string body 12.
Further, the left end portion of the leg portion 111 faces the end edge portion 2a of the object 2 to be sewn, and the right end portion has a head portion 112 that protrudes toward the right side. Further, a concave portion 113 recessed in the Y-axis direction is formed over the entire length of the Z-axis direction on the front and rear sides of the boundary portion between the head portion 112 and the leg portion 111.
Thereby, the head portion 112 protrudes toward the right side and the root portion has a narrowed shape due to the concave portions 113 on both sides, and the front end portion and the rear end portion of the head portion 112 are bulged in an arc shape in plan view. shape.
On the other hand, the shape of each of the concave portions 113 in a plan view is a shape in which the front end portion and the rear end portion of the head portion 112 are fitted in a plan view, and are recessed in an arc shape.
Therefore, in the coupled state of the pair of engaging element connecting bodies 13, the recessed portions 113 on both sides of the head portion 112 of the engaging element 11 of the one engaging element connecting body 13 are fitted with the other engaging element connecting body. The state of the front end portion or the rear end portion of the head portion 112 of the adjacent two engaging elements 11 of 13.
Thereby, in the connected state of the pair of engaging element connecting bodies 13, the head portions 112 of the respective engaging elements 11 are restrained from each other in the front-rear direction, and the pair of engaging element connecting bodies 13 are kept from being separated.
Further, as shown in Fig. 2, the plurality of meshing elements 11 of the meshing element connecting bodies 13 are coupled by the string body 12 at regular intervals. However, the interval between the meshing elements 11 is set to be a pair of meshing elements. When the element connecting bodies 13 are coupled to each other, the head portion 112 of the engaging elements 11 of the respective engaging element connecting bodies 13 can be fitted to the recessed portion 113 of the other engaging element connecting body 13 without a gap.

Fig. 4 is an enlarged plan view showing a state in which the meshing elements 11 are in meshing state with each other partially cut away. As shown in FIGS. 3 and 4, a groove 114 is formed in the protruding end portion (right end portion) of the head portion 112 of the engaging element 11 along the Y-axis direction.
Further, on the inner side of the concave portion 113 on the front and rear sides of the meshing element 11, a plate-like projection 115 that protrudes to the right at the same height as the groove 114 is formed.
The grooves 114 and the protrusions 115 are configured such that when the pair of engaging element connecting bodies 13 are coupled, the protrusions 115 on the front and rear sides of the engaging elements 11 of the engaging element connecting bodies 13 are fitted to the other engaging elements. The groove 114 of the engaging element 11 of the connecting body 13 is inside.
As a result, the head portion 112 of each of the meshing elements 11 of the one meshing element connecting body 13 and the head portion 112 of each of the meshing elements 11 of the other meshing element connecting body 13 are restrained from each other in the Z-axis direction. In the state, even if the external force in the Z-axis direction is received, the connection state can be effectively maintained.

[Example (1) of the appropriate needle drop point for the sewing of the sliding zipper]
The embodiment (1) of the sewing method of the slide fastener 10 and the needle drop point of the formed slit will be described with reference to Figs. 2 and 5 . Fig. 5 is a view showing the needle drop point of the slit of the engaging element coupling body 13 on the left side as seen from the rear.
Each of the meshing element connecting bodies 13 of the slide fastener 10 is sewn and sewn to the end edge portion 2a of the workpiece 2 by a slit of a lock stitch formed by the sawtooth sewing machine 100 to be described later. Therefore, a slit is formed on the surface side of the workpiece 2 by the upper thread U, and a slit is formed on the inner side by the lower thread D.

When the engaging element connecting body 13 is sewn, as shown in Fig. 2, by the sewing of the three-point serrated slit by the sawtooth sewing machine 100, the meshing with respect to the string body 12 is formed for each of the engaging elements 11. The head tribe point a1 of the head portion 112 of the element 11 and the edge edge a2 to a6 of the end edge portion 2a side of the workpiece 2 of the string body 12 are trimmed. These needle drop points are formed sequentially from a1 to a6.
Further, the engaging elements 11 are fixed to the workpiece 2 by the slits t1 to t6 formed by the lower line U and the lower line D below.
T1: a slit formed between the needle drop points a1-a2
T2: a slit formed between the needle drop points a2-a3
T3: a slit formed between the needle drop points a3-a4
T4: a slit formed between the needle drop points a4-a5
T5: a slit formed between the needle drop points a5-a6
T6: at the needle drop point a6-a11 (the head tribe point a1 of the meshing element 11 on the rear side, however, it is expedient to distinguish it, and is described as "a11" in the description and FIG. The slit formed between the sixth and the tenth drawings to be described later is not limited to the three-point serrated slit, and may be a serrated slit of two or more points.

The head tribe point a1 is located on the side 116 of the front side of the leg portion 111 of the engaging element 11 as a fixed object in the Y-axis direction, and is rightward with respect to the string body 12 in the X-axis direction and close to the string body 12 s position.
In the case of the head tribe point a1, although the serrated sewing machine 100 will perform needle drop on the empty portion, the sewing needle of the sewing machine 100 can be slidably coupled to the string body 12 or the engaging member 11 to form a rising needle. The loop of the upper line U can be caught by the shuttle to be wound around the lower thread D, so that a node formed by the upper line U and the lower line D can be formed at the head tribe point a1.

The end edge tribe points a2 to a6 are located in the overlapping portion 2b of the object 2 to be sewn, and are located in a region R1 within a range of the width of the leg portion 111 of the engaging element 11 which is a fixed object in the Y-axis direction in the Y-axis direction. Inside.
Further, it is preferable that only two of the edge edge triangulation points a2 and a6 among the edge edge acupuncture points a2 to a6 are located, and the overlapping width w of the overlapping portion 2b of the object 2 to be sewn in the region R1 is One half of the width w/2 is in the region R2 on the front end 2aa side of the center edge portion 2a. Further, in Fig. 2, the regions R1 and R2 are hatched, and this is for clearly indicating the range of each region.
Further, two points of the edge edge tribe points a2 and a6 are arranged in the region R2, and are disposed at one end (front end portion) and the other end portion (rear end portion) of the Y-axis direction.

Further, it is preferable that the edge edge tribe points a2 and a6 are disposed in the region R2 as far as possible on the front side and the rear side.
Further, it is preferable that the end edge tribe points a2 and a6 are arranged so as to be in the X-axis direction as far as possible from the front end 2aa of the end edge portion 2a in the X-axis direction.
For example, as shown in Fig. 5, when the object to be sewn 2 is folded back to form the overlapping portion 2b, a flat portion along the XY plane is formed at the edge portion 2a of the object 2 to be sewn, and The curved part.
It is preferable that the edge edge tribe points a2 and a6 are arranged in the range of the width v of the portion bent by the folding in the X-axis direction.

The three points of the end edge tribe point a3 to a5 are in the region R1 farther from the front end 2aa of the end edge portion 2a than the region R2, and in the Y-axis direction, the end edge tribe pin point a2 and the edge edge tribe In the range between the needle points a6, they are arranged in a line along the Y-axis direction.

When the sewing machine 100 is sewn, the end portion 2a of the workpiece 2 and the string body 12 of the one of the meshing element connecting bodies 13 are arranged in the Y-axis direction, respectively, and are oriented toward each other. The front feed is performed while the sewing needle is needled in the X-axis direction, and the engaging elements 11 from the front side are sequentially needle-dropped for each of the engaging elements 11 in the respective needle dropping points a1 to a6 to form a lock stitch. Sewing is performed by slits t1 to t6.

The slit t1 formed by the upper thread U and the lower thread D between the needle drop points a1-a2 formed by the sewing described above and the slit t6 formed by the upper thread U and the lower thread D of the needle drop point a6-a11 are respectively formed. It is a side surface 116, 117 on both sides in the Y-axis direction of the leg portion 111 of the engaging element 11 of the fixed object.
This is because the two points of the end edge tribe points a2 and a6 are in the region R2 and are disposed at the front end portion and the rear end portion.
For example, as shown in the comparative example (1) of Fig. 6, the two points of the end edge tribe points a2 and a6 are separated from the front end portion and the rear end portion and close to the center portion in the region R2, and the slit t1 and The slits t6 do not span the sides 116, 117, respectively, but span the upper surface of the foot 111 (the lower line D will span the underside). Further, in Fig. 6, the illustration of the edge edge tribe points a3, a5 is omitted.
However, as shown in Fig. 2, the two points of the end edge tribe points a2 and a6 are respectively located at the front end portion and the rear end portion in the region R2, and the slits t1 and the slits t6 of the upper thread U and the lower thread D can respectively be respectively Across the sides 116, 117.

The slit t1 and the slit t6 are in a state of crossing the side faces 116 and 117, respectively, whereby the upper thread U and the lower thread D forming the slits t1 and t6 are sewn to the leg portion 111 of the engaging element 11 to be sewn. The state of the corner on the object 2 side.
Thereby, the upper thread U and the lower thread D are held from the side faces 116, 117 so as to enclose the engaging elements 11, so that the meshing element 11 can be prevented from moving in the Y-axis direction, and the head 112 edge of the engaging element 11 can be suppressed. The Y-axis direction is swung, and the head 112 of the engaging element 11 can be suppressed from swinging about the Y-axis. Therefore, the slide fastener product 1 can be smoothly connected or separated by the slider 14.
On the other hand, when the slit t1 and the slit t6 are spanned as shown in Fig. 6, the upper line U and the lower line D forming the slits t1 and t6 do not abut against the corners of the leg portion 111, so that the above-mentioned cannot be suppressed. Move or swing in all directions. In addition, it is difficult to perform a smooth connection or separation operation by the slider 14.

Further, for comparison, a comparative example (2) in which the engaging elements 11 are sewn with slits at the needle dropping points a1, a3, a4, and a5 other than the needle dropping points a2 and a6 is shown in Fig. 7 Said.
In the comparative example (2), the upper line U and the lower line D formed at the slit between the needle drop points a1 - a3, and the upper line U and the lower line D formed at the slit between the needle drop points a5 - a11 Even when the side faces 116 and 117 are respectively formed to be in contact with the corner portions of the leg portion 111 on the side of the workpiece 2 to be sewn, the same effects as those of the slits t1 and t6 cannot be obtained.
In the comparative example (2), since the corner portion of the leg portion 111 of the self-engaging element 11 is far from the needle point a3 and a5, instead of the needle drop points a2 and a6, the effect of restraining the meshing member 11 through the corner portion is obtained. The possibility of being weak and the slit crossing the upper corner portion and crossing the upper surface of the leg portion 111 is also increased, so that the above-described movement or swing of the engaging element 11 cannot be sufficiently suppressed.

Further, in the embodiment (1) in which the needle drop point is appropriate, the end edge tribe needle is formed in the overlapping portion 2b of the workpiece 2 to be farther away from the head tribe point a1 than the end edge tribe point a2, a6. Point a3 to a5. Thereby, the deflection of the workpiece 2 in the overlapping portion 2b can be effectively suppressed, so that the movement and the swing of the engaging element 11 can be more effectively suppressed.
Further, the three points of the end edge tribe points a3 to a5 may be arranged in an area farther from the front end 2aa of the end edge portion 2a than the region R1. At this time, since the overlapping portion 2b is held by the slit t2 formed between the needle drop points a2-a3 and the slit t5 formed between the needle drop points a5-a6, the overlapping portion 2b can be suppressed. The deflection of the portion 2b to be sewn 2 .

Further, since each of the slits t1 to t6 is a slit of the lock stitch, the restraining force of each of the engaging elements 11 can be easily improved by adjusting the yarn tension, and the movement of the engaging member 11 can be more effectively suppressed. And swing.

[Example (2) of the appropriate needle drop point of the slippery zipper]
The embodiment (2) of the sewing method of the slide fastener 10 and the needle drop point of the formed slit will be described based on Fig. 8 . Fig. 8 is a plan view showing the slide fastener 10A in which the slide fastener 10 is sewn to the workpiece 2 by a suitable needle drop point.
In the slide fastener product 1A, in order to sew the respective meshing elements 11 of the meshing element connecting bodies 13 of the slide fastener 10, the aforementioned head tribe pin point a1 and the aforementioned edge edge tribe pin points a2, a6 are formed and sewn. With. In addition, the aforementioned edge edge tribe points a3 to a5 are not formed.
The position where the head tribe point a1 and the end edge tribe point a2, a6 are formed is the same as the above-described slip zipper product 1. Therefore, the end edge tribe points a2 and a6 are provided at the front end portion and the rear end portion of the region R2 of the overlapping portion 2b of the workpiece 2, and more preferably in the range of the width v of the portion bent by the refolding. (see Fig. 2 and Fig. 5).

By the aforementioned needle drop points a1, a2, a6, the aforementioned slit t1 is formed between the needle drop points a1-a2, and a slit t7 is formed between the needle drop points a2-a6, at the needle drop point a6-a11 The aforementioned slit t6 is formed therebetween.

When the sewing machine 100 is sewn, the end portion 2a of the workpiece 2 and the string body 12 of the one of the meshing element connecting bodies 13 are arranged in the Y-axis direction, respectively, and are oriented toward each other. The front feed is performed while the sewing needle is needled in the X-axis direction, and the engaging elements 11 from the front side are sequentially needle-dropped for each of the engaging elements 11 in sequence with the respective needle dropping points a1, a2, and a6, in order. Sewing is performed by forming the slits t1, t7, and t6 of the lock stitch.

In this case, the slits t1 and the slits t6 are also formed to face the side faces 116, 117 on both sides in the Y-axis direction of the leg portion 111 of the engaging element 11 of the fixed object, respectively.
Thereby, the upper thread U and the lower thread D are held so as to wrap the engaging elements 11 from the side faces 116 and 117, so that the movement of the engaging element 11 in the Y-axis direction and the swing of the head 112 in the Y-axis direction can be suppressed. And the swing of the head 112 about the Y axis. Therefore, in the slide fastener product 1A, the slider 14 can be smoothly connected or separated.

[Embodiment (3) of the appropriate needle drop point of the slippery zipper]
The embodiment (3) of the sewing method of the slide fastener 10 and the needle drop point of the formed slit will be described based on Fig. 9. Fig. 9 is a plan view showing the slide fastener 10C in which the slide fastener 10 is sewn to the workpiece 2 by a suitable needle drop point.
In the slide fastener product 1C, in order to sew the respective meshing elements 11 of the meshing element connecting bodies 13 of the slide fastener 10, the above-described head tribe pin point a1 and the aforementioned edge edge tribe pin points a2 to a6 are formed and sewn. With. Further, although it is preferable to form the edge edge tribe points a3 to a5, it is not essential.
The position at which the head tribe point a1 is formed is the same as that of the above-described slip zipper article 1.
The position at which the end edge tribe points a2 and a6 are formed is related to the range in which the aforementioned slider 14 passes over the object 2 to be sewn. The straight line S in the ninth diagram indicates the trajectory that is passed when the outermost end portion of the slider 14 in the X-axis direction moves in order to connect or disengage the pair of meshing element connecting bodies 13. That is, the side closer to the meshing element connecting body 13 than the straight line S is the range in which the slider 14 passes over the object 2 to be sewn. Further, the end edge tribe points a2 and a6 are provided in a range in which the slider 14 passes over the object to be sewn 2, and the front end portion in the region R3 inside the width of the leg portion 111 of the engaging element 11 in the Y-axis direction and Back end.
On the other hand, the edge edge acupuncture points a3 to a5 are preferably provided in the region R1 as described above, but may be provided farther from the meshing element connecting body 13 than the overlapping portion 2b of the workpiece 2 to be sewn.

[Other examples of the stitching point of the slippery zipper]
Other examples of the sewing method of the slide fastener 10 and the needle drop point of the formed slit will be described based on Fig. 10 . Fig. 10 is a plan view showing the slide fastener 10B in which the slide fastener 10 is sewn to the workpiece 2 according to another example of the needle drop point.
In the slide fastener product 1B, in order to sew the respective meshing elements 11 of the meshing element connecting bodies 13 of the slide fastener 10, the above-described head tribe pin point a1 and the aforementioned edge edge tribe pin points a3 to a5 are double formed. Sew it. In addition, the aforementioned edge edge tribe points a2, a6 are not formed.
The position where the head tribe point a1 and the end edge tribe point a3 to a5 are formed is the same as the above-described slip zipper product 1.

The same slits as in the comparative example (2) of the seventh drawing described above were formed by the needle dropping points a1, a3 to a5.
When the sewing machine 100 is sewn, the end portion 2a of the workpiece 2 and the string body 12 of the one of the meshing element connecting bodies 13 are arranged in the Y-axis direction, respectively, and are oriented toward each other. When the front feed is performed, the sewing needle is needled in the X-axis direction, and the engaging elements 11 from the front side sequentially drop the needles for each of the engaging elements 11 in the respective needle dropping points a1, a3 to a5, in order. Form the seam of the lock seam.
Further, when the formation of the slit covering the entire length of the engaging element connecting body 13 is completed, it is repeated once again to form a slit covering the entire length of the engaging element connecting body 13, thereby forming a double slit.

Since the slits caused by the end edge tribe points a2 and a6 are not formed, in the case where the sewing is performed only by a single weight, as in the comparative example (2) of Fig. 7, the restraining force of the engaging element 11 is lowered, and it is impossible to The movement or the swing is sufficiently suppressed. However, in the example of Fig. 10, the sewing is performed in a double manner, so that the restraining force of the engaging element 11 can be reinforced, and the movement or the swing of the engaging element 11 can be sufficiently suppressed.
Further, the slits formed by the edge edge tribe points a2, a6 are formed and double-stitched to restrain the engaging element 11 more firmly.
Further, it is also possible to repeatedly form the slits to form slits of three or more.

[Sawtooth Sewing Machine]
The sawtooth sewing machine 100 which is a sewing machine suitable for use in sewing the sewn element connecting body 13 to the workpiece 2 by one of the above-described slide fastener products 1 will be described with reference to the drawings.
Fig. 11 is a perspective view of the serrated sewing machine 100.

The sawtooth sewing machine 100 includes a sewing machine frame 20 having a sewing machine seat portion 21, and a press member 25 for pressing the workpiece 2 provided on the upper surface of the needle plate 24 of the sewing machine seat portion 21 from above; the needle up and down moving mechanism The sewing needle 26 is placed up and down with respect to the workpiece 2 on the needle plate 24, and the needle is dropped while swinging left and right. The feeding mechanism guides the object to be sewn 2 from the lower side of the needle plate 24 by the feeding teeth. The feeding direction is performed in a predetermined feeding direction; the shuttle mechanism is such that the lower thread D is wound around the upper thread U of the sewing needle 26; and the zipper conveying mechanism 40 is the engaging element coupling body 13 for carrying the sliding zipper 10.
In addition, the configuration other than the zipper transport mechanism 40 is the same as the well-known configuration of a general sawtooth sewing machine, and therefore, the illustration is omitted and briefly described.

[sewing machine frame]
The sewing machine frame 20 includes a sewing machine seat portion 21 that is located at a lower portion of the entire sawtooth sewing machine 100, and an upright trunk portion 22 that is erected at an upper end of the sewing machine seat portion 21 and a sewing machine arm portion 23 The upper end portion of the upright trunk portion 22 extends in a predetermined direction.
In the following description, the longitudinal direction of the sewing machine seat portion 21 and the sewing machine arm portion 23 of the sawtooth sewing machine 100 is the X-axis direction, and the needle plate 24 side of the sewing machine seat portion 21 is "left" to erect the trunk portion. The 22 side is "right".
In the serrated sewing machine 100, the workpiece 2 and the meshing element connecting body 13 are conveyed in the direction perpendicular to the X-axis direction on the needle plate 24, and the conveyance direction is the Y-axis direction, and the downstream side of the conveyance direction is ""Before", the upstream side of the conveying direction is "rear".
Further, the direction orthogonal to the X-axis direction and the Y-axis direction is the Z-axis direction, and one of the two is "up" and the other is "down".
Further, in the X-Z axis direction defined by the above-described slip fastener product 1, the sewing object 2 and the engaging element coupling body 13 of the slide fastener product 1 are provided in the sawtooth sewing machine 100 in the sewing process. The status is the same.

[Needle up and down moving mechanism]
The needle up-and-down moving mechanism includes a needle bar 27 that holds the sewing needle 26, a sewing machine motor that serves as a driving source for sewing, an upper shaft that is rotationally driven by a sewing machine motor, and a crank mechanism that rotates the upper shaft. It is converted into a reciprocating motion in the vertical direction and is applied to the needle bar 27; the needle bar support table supports the needle bar so as to be movable up and down; and the pendulum motor moves the needle bar support table in the X-axis direction. .
The needle up-and-down moving mechanism moves the sewing needle 26 up and down at a sewing speed corresponding to the number of revolutions of the sewing machine motor, and can position the needle drop position of the sewing needle 26 along the X orthogonal to the conveying direction of the engaging element connecting body 13. The axis direction is arbitrarily moved and adjusted.

[ Shuttle mechanism]
The shuttle mechanism includes a shuttle provided on the lower side of the needle plate 24 and a transmission mechanism for imparting a rotational force to the shuttle from the sewing machine motor.
The shuttle system accommodates a bobbin that winds the lower thread D, and has a hook on the outer circumference. Then, the coil passing through the upper thread of the sewing needle 26 is caught by the hook, and the bobbin is passed through the coil of the upper thread, whereby the lower thread D is wound around the upper thread U to form a nodule.
Further, the shuttle system can use a vertical shuttle, a horizontal shuttle, etc., and can use a half-rotation or a full-rotation shuttle.

[Into the cloth agency]
The feed mechanism includes a feed tooth that protrudes from the opening 241 (see FIG. 12) of the needle plate 24, and a feed transmission mechanism that reciprocates in the Z-axis direction and the Y-axis direction. Reciprocating motion and communicating to the feed teeth.
The feed tooth includes a serrated tooth that protrudes from the opening 241 formed in the needle plate 24, and the feed transmission mechanism obtains power from the sewing machine motor and converts it into a reciprocating motion along the Z-axis direction and along the edge. The reciprocating motion in the Y-axis direction is transmitted to the feed tooth, whereby the feed tooth is moved in an elliptical motion by reciprocating motion in the YZ plane, and when the upper portion of the ellipse moves, the tooth tip is on one side. The protrusion 2 is moved forward toward the front, and the object to be sewn 2 can be fed forward.
Further, the feeding mechanism can arbitrarily adjust the feed amount of the workpiece 2 in the Y-axis direction of each needle.
Further, the feed adjustment mechanism may be provided with a feed adjustment motor that arbitrarily adjusts the feed amount, and the feed adjustment amount may be adjusted by the feed adjustment motor.

[needle board]
Fig. 12 is a perspective view of the needle plate 24. The needle plate 24 is provided at a needle drop position of the sewing needle 26 provided on the upper surface of the sewing machine seat portion 21, and is attached so that the upper surface of the needle plate 24 is flat and is flush with the upper surface of the sewing machine seat portion 21.
The needle plate 24 is a rectangular flat plate, and the object to be sewn 2 is conveyed along the Y-axis direction along the upper half of the upper half of the needle plate 24.

A slit-shaped pinhole 242 is formed in the central portion of the needle plate 24 so as to penetrate the X-axis direction, and three opening portions in which the aforementioned feed teeth are protruded are formed in the front and rear and the left side of the pinhole 242. 241. By making the pinhole 242 a slit shape along the X-axis direction, it is possible to correspond to the needle drop performed by the needle in the X-axis direction.

Further, a feed groove 243 of the meshing element connecting body 13 along the Y-axis direction is formed at a central portion of the upper surface of the needle plate 24 in the X-axis direction. The feed groove 243 has a width in the X-axis direction which is almost equal to or slightly wider than the length of the engaging element 11 in the X-axis direction, and the engaging element coupling body 13 can be accommodated in the feeding groove 243, and the engaging element connecting body 13 can be engaged. The guidance is performed in the same Y-axis direction as the conveyance direction of the workpiece 2 to be sewn.
Further, the feed groove 243 is shallower than the half of the width of the engaging element 11 in the Z-axis direction, and the workpiece 2 on the needle plate 24 is placed at the center of the meshing element 11 in the Z-axis direction. Further, the front end portion and the rear end portion of the feed groove 243 are formed such that the inner bottom surface of the groove has a slope shape.
Further, the pinhole 242 described above is formed so as to traverse the center portion of the feed groove 243 in the Y-axis direction.
The needle plate 24 functions as a slide guide that guides the meshing element connecting body 13 in the Y-axis direction that is the same as the feeding direction of the workpiece 2 by the feed groove 243.

[pressing cloth]
Figure 13, a perspective view of the vicinity of the needle position. The presser 25 is press-supported downward on the needle plate 24 by the support bracket 251 provided in the sewing machine seat portion 21.
The presser 25 is formed in a rectangular plate shape along the Y-axis direction, and a notch 252 having a semi-elliptical shape for avoiding the falling of the sewing needle 26 is formed at the edge portion on the right side. The notch 252 overlaps the left half of the pinhole 242 of the needle plate 24 when viewed from above.
The presser 25 applies a pressing force to the workpiece 2 to be conveyed on the needle board 24 by the pressing force from the support bracket 251.
Further, the presser member 25 can adjust the height or the pressing force by the presser lift motor 253 (refer to Fig. 31) for raising and lowering the presser member 25. Thereby, the pressing pressure can be changed in accordance with the thickness of the object to be sewn or the like.

[Zipper handling mechanism]
Fig. 14 is a plan view of the zipper transport mechanism 40, and Fig. 15 is a rear view.
As shown in the figure, the zipper transport mechanism 40 includes a transport gear 41 that includes teeth that mesh with the meshing element 11 of the meshing element connecting body 13 , a transport motor 42 that imparts a rotational motion to the transport gear 41 , and a support mechanism 43 . The transmission mechanism 41 supports the transmission mechanism 48 to transmit the rotational force to the conveyance gear 41 from the conveyance motor 42 and the zipper pusher 49 to prevent the engagement element coupling body 13 conveyed by the conveyance gear 41 from being detached upward.

Figure 16, a rear view of the vicinity of the needle position.
As shown in FIGS. 13 and 16, the carrier gear 41 is provided with a spur gear having teeth that can be engaged with the meshing element connecting body 13 along the Y-axis direction or the head 112 of the plurality of engaging elements 11 on the outer circumference. And supported by the support mechanism 43 so as to be rotatable about the Z axis.
The conveyance gear 41 has a pitch width which coincides with the pitch of each of the meshing elements 11 of the engaging element connecting body 13, and the tooth width thereof is subtracted from the width of the self-engaging element 11 in the Z-axis direction by the feed groove 243 on the needle plate 24. The width of the depth is almost equal. Therefore, the upper surface of the meshing element 11 of the meshing element coupling body 13 conveyed in the feed groove 243 of the needle plate 24 is located at the same height as the upper surface of the conveyance gear 41.
Further, the conveyance gear 41 is disposed to the right of the needle drop position, and is disposed to engage the engagement element coupling body 13 that faces the head portion 112 of each of the engagement elements 11 from the right side.
Therefore, when the rotation is applied to the conveyance gear 41, the engagement element coupling body 13 can be conveyed in the Y-axis direction.

The zipper pusher 49 is supported by the base plate 45 of the support mechanism 43 in front of the needle drop position as shown in Figs. 13 and 16, and extends rearward to the needle drop position.
Further, the lower surface of the extended end portion of the zipper press member 49 abuts or approaches the height of the upper surface of the engaging element 11 of the engaging element connecting body 13 in the feeding groove 243 of the needle plate 24 at the needle drop position.
Thereby, in the feed groove 243, it is possible to suppress the engagement of the meshing element coupling body 13 that is meshed with the conveyance gear 41 upward with respect to the conveyance gear 41.

Further, the zipper presser 49 is formed with a notch 491 having a semi-elliptical shape for avoiding the falling of the sewing needle 26 at the edge portion on the left side of the extending end portion. The notch 491 is overlapped with the right half of the pinhole 242 of the needle plate 24 when viewed from above.

Fig. 17 is a plan view showing a state in which the upper cover 451 of the base plate 45 of the support mechanism 43 and the upper cover 441 of the support arm portion 44 are removed.
As shown in FIGS. 14 and 17, the support mechanism 43 includes a support arm portion 44 that supports the conveyance gear 41, a base plate 45 that supports the support arm portion 44, and a base plate 45 that can be along the X-axis. A slide guide 46 supported in a slidable manner.

The base plate 45 is a flat plate along the XY plane, and is disposed on the sewing machine seat portion 21 through the slide guide 46 so as to be disposed between the needle drop position and the upright trunk portion 22.
The base plate 45 supports the conveyance gear 41 through the support arm portion 44, and also supports the conveyance motor 42 and the transmission mechanism 48.
Further, the base plate 45 is provided with an upper cover 451 attached to the upper portion, and covers a part of the transmission mechanism 48 supported by the base plate 45.

The slide guide 46 includes a movable block 461 fixedly coupled to the base plate 45, and a slide rail 462 attached to the sewing machine seat portion 21 along the X-axis direction, and is capable of passing the base plate 45 through the movable block 461. Slide in the X-axis direction.

On the other hand, at the right end portion of the base plate 45, a restriction bracket 452 for restricting the sliding operation of the base plate 45 in the X-axis direction is provided.
The restricting bracket 452 extends to the right, and a connecting screw 454 is rotatably supported at the extending end, and a screw hole into which the connecting screw 454 can be screwed is formed in the sewing machine seat portion 21. Fixed plate 453.
In addition, the left side of the extending end portion of the restriction bracket 452 is brought into contact with the right side of the fixing plate 453, and the connecting screws 454 are coupled to each other, whereby the base plate 45 can be fixed at a predetermined position at the time of sewing. Further, when the connecting screw 454 is loosened and the restricting bracket 452 is separated from the fixed plate 453 toward the right, the base plate 45 can be moved to the right from the predetermined position. When the base plate 45 is moved to the right, the right end portion of the base plate 45 abuts against the left side of the fixed plate 453. This abutment position is the movable limit of the right side of the base plate 45.

As described above, the base plate 45 supports the conveyance gear 41 through the support arm portion 44, and the conveyance gear 41 is conveyed from the right side of the engagement element 11 with respect to the conveyed element coupling body 13 to be conveyed.
The predetermined position at the time of sewing the base plate 45 is such that when the meshing element connecting body 13 is conveyed, the tooth tip of the carrier gear 41 can be properly engaged with the head 112 of the engaging element 11, and can be properly rotated. The location of the move.
When the connecting screw 454 is loosened and the restricting bracket 452 is separated from the fixing plate 453, the head 112 of the engaging element 11 of the engaging element connecting body 13 can be released by the movement toward the right of the base plate 45. In the engaged state, the tooth tip of the carrying gear 41 is isolated to the right.
Thereby, for example, maintenance of the zipper transport mechanism 40 or removal of the engagement of the element connecting body 13 from the needle plate 24 can be easily performed.

As shown in FIGS. 14 and 17, the support arm portion 44 is supported at the left end portion of the base plate 45 so as to be rotatable about a support shaft 442 along the Z-axis direction, and the support arm portion 44 is supported. The rotating end is oriented obliquely to the right.
Further, the support arm portion 44 is attached to the rotation end portion, and the carrier gear 41 is rotatably supported by the support shaft 411.
Further, a leaf spring-like latch plate 412 fitted to the outer circumferential groove of the conveyance gear 41 is attached to the rotation end portion of the support arm portion 44. The latch plate 412 has a projection that is pressed in contact with the conveyance gear 41 with a constant spring pressure to prevent backlash of the conveyance gear 41.

An upper cover 441 is fixedly attached to an upper portion of the support arm portion 44, and one end portion of the pull-out spring 443 is coupled to a distal end portion of the upper cover 441. The other end portion of the pull-out spring 443 is coupled to the base plate 45, and tension is applied to a direction in which the conveyance gear 41 supported by the support arm portion 44 approaches the meshing element coupling body 13 side.

Further, on the side of the rotation end of the upper cover 441, a restriction opening portion 445 is formed, and an extending end portion of the rotation angle restricting plate 444 fixedly supported by the base plate 45 is loosely inserted.
Thereby, the range of the angle at which the support arm portion 44 on the base plate 45 can be rotated is restricted, and the conveyance gear 41 is moved only between the left limit position and the right limit position.
The rotatable angular range enables the carrier gear 41 to properly engage the teeth of the carrier gear 41 at a head 112 of the engaging member 11 of the engaging element coupling body 13 of the feed groove 243 with a constant pressing force. The position is moved to a position where the conveyance gear 41 is completely disengaged from the meshing state of the head portion 112 of the engaging element 11.
In this way, the support arm portion 44 can be rotated within a predetermined angle range, whereby the support plate portion 44 can be rotated to the right in a state where the base plate 45 is continuously held at a predetermined position at the time of sewing, for example, by manual work. When the sewing is completed, the meshing state of the conveyance gear 41 and the engagement element 11 of the engagement element coupling body 13 is released, and the engagement element coupling body 13 can be removed from the needle plate 24.

Further, an origin sensor 413 that carries the gear 41 and a detection plate 414 are mounted on the upper surface of the upper cover 441 of the support arm portion 44.
The detecting plate 414 is fixed to the upper end portion of the support shaft 411 of the conveyance gear 41, and extends in the radial direction around the support shaft 411.
The origin sensor 413 is a magnetic proximity sensor. The origin sensor 413 is disposed on the upper surface of the upper cover 441, and is disposed in a range in which the detecting plate 414 rotates about the support shaft 411. The detection plate 414 detects the conveyance gear 41 by approaching the origin sensor 413. Origin position.

The conveyance motor 42 is a stepping motor, and the transmission mechanism 48 can arbitrarily control the amount of feed of the meshing element connecting body 13 by the conveyance gear 41.
The conveyance motor 42 is attached to the base plate 45 in a state where the output shaft is directed downward as shown in Figs. 14 and 15 .

As shown in FIGS. 14 to 17 , the transmission mechanism 48 includes an active pulley 481 that is fixedly mounted to an output shaft of the transport motor 42 , and an intermediate pulley 482 that is rotatably supported by the support arm The support shaft 442 of the 44; the driven pulley 483 is fixed to the support shaft 411 of the transport gear 41; the timing belt 484 is straddle from the drive pulley 481 to the driven pulley 483 via the intermediate pulley 482; and the tension roller 485 The timing belt 484 imparts tension.

The intermediate pulley 482 is rotatable with respect to the support shaft 442 of the support arm portion 44, and the intermediate pulley 482 is rotatable independently of the rotation operation of the support arm portion 44.
On the other hand, the driven pulley 483 is fixed to the support shaft 411 of the conveyance gear 41, and the conveyance gear 41 is also fixed to the support shaft 411. Therefore, the driven pulley 483 and the carrying gear 41 are simultaneously rotated in conjunction.

The tension roller 485 is supported by a bell crank 486 disposed on the upper cover 451 of the base plate 45. The bell crank 486 is coupled to a pull spring 487 for synchronizing the tension roller 485. The tension is applied to the direction in which the outer side of the belt 484 is pressed toward the inner side.

In addition, as shown in FIG. 17, the tension roller 485 is formed such that the timing belt 484 is connected in a substantially L-shaped shape at each position of the driving pulley 481 - the intermediate pulley 482 - the driven pulley 483. On the timing belt 484.
By maintaining the timing belt 484 in such a shape, even when the rotation operation of the support arm portion 44 is performed, the occurrence of slack in the timing belt 484 can be reduced, and the output shaft angle of the conveyance motor 42 and the conveyance gear 41 can be reduced. The case where the angle of rotation is angularly offset.

Further, as shown in Fig. 18, the drive pulley 481, the intermediate pulley 482, and the driven pulley 483 of the transmission mechanism 48 are all toothed pulleys, and the timing belt 484 may be a toothed belt.

[Sewing operation of sliding zipper products by serrated sewing machine]
The sewing operation of the sawtooth sewing machine 100 is exemplified by the case where the engaging element connecting body 13 on the left side of the slide fastener 10 of the slide fastener product 1 of the second embodiment is sewn to the end edge portion 2a of the workpiece 2 to be sewn. Be explained.

First, the origin search of the conveyance gear 41 of the zipper conveyance mechanism 40 is performed. In other words, the control device provided in the sawtooth sewing machine 100 drives the transport motor 42 to rotate the transport gear 41, and detects the detection plate 414 of the origin sensor 413. Further, when the detection plate 414 is detected, the conveyance motor 42 is stopped at the origin position of the conveyance gear 41.
Next, the user of the sewing machine rotates the coupling screw 454 to release the connection state between the restriction bracket 452 and the fixed plate 453, moves the base plate 45 to the right, and retracts the conveyance gear 41 to the right of the needle drop position.

Next, the user of the sewing machine sets the engaging element coupling body 13 so that the leading engaging member 11 can be positioned at the needle drop position with respect to the feeding groove 243 of the needle plate 24, so that the end edge portion 2a is along the engaging member. The object to be sewn 2 is placed under the presser member 25 in such a manner as to the left side of the joint body 13.
Next, the base plate 45 is moved to a predetermined position at the time of sewing on the left side, and the fastening screw 454 is rotated to reconnect the restriction bracket 452 and the fixing plate 453.

After that, start driving the sewing machine motor. In the sewing process, the needle drop of the needle drop points a1 to a6 in Fig. 2 is repeated, and the needle motor and the conveyance motor 42 are controlled every time the needle is dropped. An encoder is incorporated in the sewing machine motor, and the timing of the needle motor and the conveyance motor 42 of each needle is detected.

Specifically, when sewing is started by the needle drop of the needle drop point a1, the needle motor will perform the needle arrival point at the appropriate timing detected by the encoder of the sewing machine motor until the next needle drop. In the left direction of the needle a2, the conveyance motor 42 performs the advancement of the engagement element coupling body 13 by the amount of movement toward the front until the needle drop point a2.
Positioning from the needle drop point a2 to the needle drop point a3, positioning from the needle drop point a3 to the needle drop point a4, positioning from the needle drop point a4 to the needle drop point a5, from the needle drop point a5 to the needle drop point a6 The positioning, positioning from the needle drop point a6 to the needle drop point a1 of the next engaging element 11 is performed in the same manner as described above.
Further, specific numerical data of the amount of the pendulum of the needle-shake motor for the needle-dropping points a1 to a6 and the amount of the forward movement caused by the conveyance motor 42 are previously stored in the control device of the sawtooth sewing machine 100. The data is stored in the body, so the reading of the numerical data is performed every time the needle is dropped.

When the stitching of the engaging elements 2 of the engaging element connecting body 13 is completed by the stitching of the needle dropping points a1 to a6, the sewing machine motor, the needle motor, and the carrying motor 42 are stopped. action.
Next, the user of the sewing machine rotates the coupling screw 454 to release the connection state between the restriction bracket 452 and the fixed plate 453, moves the base plate 45 to the right, and retracts the conveyance gear 41 to the right of the needle drop position. Thereby, the workpiece 2 and the meshing element connecting body 13 can be removed from the needle plate 24.
Moreover, in the case where only the engagement element coupling body 13 of one of the slide fasteners 10 of the slide fastener product 1 is sewn, the other engagement element coupling body 13 is also sewn. At this time, the other engaging element connecting body 13 is attached to the feeding groove 243 of the needle plate 24, and when the engaging element connecting body 13 is sewn to one of the meshing element connecting bodies 13, the direction of the object to be sewn 2 is interchanged before and after. The sewing of the engaging element connecting body 13 is performed in the same manner as described above.

Further, as described above, the specific numerical data of the pendulum amount of the needle-shake motor for the needle drop of each of the needle drop points a1 to a6 and the forward movement amount by the transport motor 42 are stored in advance in the data memory. .
Further, the sewing of the needle drop is performed for each of the needle dropping points of Figs. 6 to 10, and the needle amount of the needle needle motor for the needle drop of each needle drop point is prepared in advance in the data memory. The specific numerical data of the amount of advance movement caused by the conveyance motor 42 can thereby perform the sewing sewing by the sawtooth sewing machine 100.

Further, as shown in Fig. 19, a pneumatic cylinder 47 may be provided in the sewing machine seat portion 21; the pneumatic cylinder 47 performs a needle drop toward the distance away from the conveyance gear 41 by moving the base plate 45 in the X-axis direction. An actuator that moves in the direction of the position. The pneumatic cylinder 47 is provided on the sewing machine seat portion 21 such that the operating direction of the piston rod is parallel to the X-axis direction, and the piston rod is coupled to the base plate 45.
Thereby, the base plate 45 can be moved between a predetermined position at the time of sewing and a retracted position at which the conveyance gear 41 is sufficiently separated from the engagement element coupling body 13.
The pneumatic cylinder 47 controls a solenoid valve that performs a forward and backward movement of the piston rod by a control device of the sawtooth sewing machine 100. Specifically, after the object to be sewn 2 and the meshing element connecting body 13 are installed and the origin search of the transport motor 42 is completed, the base plate 45 is moved to the start of sewing or before sewing starts. The predetermined position at the time of sewing is such that the base plate 45 is moved to the retracted position after the sewing is completed.

[Technical Effect of First Embodiment]
In the above-described slip zipper product 1, in the example of Fig. 2, the head triangulation point a1 with respect to the head 112 side of the engaging element 11 of the string body 12 is formed by sewing, and is relatively rope-like. The edge of the edge portion 2a side of the object to be sewn 2 of the body 12 is a triangular needle point a2 to a6.
Further, in the case of the edge edge tribe points a2 and a6, it is provided in the overlapping portion 2b of the object 2 to be sewn, and in the X-axis direction is one-half of the overlapping width w of the overlapping portion 2b. Further, in the range of the end portion 2aa side of the end portion, two portions of the one end portion and the other end portion of the region R2 which is the inner side of the width of the leg portion 111 of the engaging element 11 are formed in the Y-axis direction.
And, sewing is performed so that the sub-tribe pin point a1 crosses the upper edge U and the lower thread D of the slit t1 of the end edge tribe pin point a2, and the head tribe that crosses from the edge edge cue point a6 to the adjacent engaging element 11 The line U and the lower line D of the slit t6 of the stitch point a1 (the head stitch point a11 in the second figure) cross the side faces 116 and 117 on both sides in the Y-axis direction of the leg portion 111 of the engaging element 11, respectively.

Thereby, the upper thread U and the lower thread D of the slits t1 and t6 abut against the corner portion of the leg portion 111 of the engaging element 11 on the object 2 to be sewn, so that the meshing element 11 can be stably held. Therefore, it is possible to reduce and suppress the movement of the engaging element 11 in the Y-axis direction, the swing of the head portion 112 of the engaging element 11 in the Y-axis direction, the swing of the head portion 112 of the engaging element 11 about the Y-axis, and the like. Therefore, the slide fastener 10 can be sewn well, and the slide fastener product 1 can be smoothly connected or separated by the slider 14.

Further, in the case of the slide zipper products 1A, 1C shown in the examples of Figs. 8 and 9, the engaging element joints are also joined by the end edge tribe stitches including the aforementioned edge edge tribe points a2, a6. 13 is sewn to the object to be sewn 2, so that the movement of the engaging element 11 in the Y-axis direction, the swing of the head portion 112 of the engaging element 11 in the Y-axis direction, and the meshing can be reduced and suppressed as in the example of Fig. 2 The head portion 112 of the element 11 swings around the Y-axis, and the sliding slide fastener 10 can be satisfactorily sewn, and the slide fastener product 1 can be smoothly coupled or separated by the slider 14.

Further, the edge edge acupuncture points a3 to a5 are provided in the region R1 of the overlapping portion 2b of the object 2 to be sewn, and are located farther from the meshing element 11 than the edge edge tribe pin points a2 and a6.
As the upper thread U and the lower thread D of the sewing thread of the slits t2 to t5 formed by the edge edge acupuncture points a3 to a5, the fabrics of the workpiece 2 to be overlapped in the overlapping portion 2b can be kept in close contact with each other. Therefore, it is possible to suppress the occurrence of deflection and deformation of the overlapping portion 2b.
Therefore, it is possible to reduce and suppress the movement of the engaging element 11 in the Y-axis direction, the swing of the head portion 112 of the engaging element 11 in the Y-axis direction, the swing of the head portion 112 of the engaging element 11 about the Y-axis, and the like. Further, along with this, the slide fastener product 1 can be more smoothly connected or separated by the slider 14.
Further, in the case of the edge edge tribe points a3 to a5, it is also possible to provide a position farther from the engaging element 11 than the region R1 of the overlapping portion 2b of the object 2 to be sewn. At this time, the fabrics of the workpieces 2 to be overlapped in the overlapping portion 2b cannot be directly adhered to each other by the nodules of the upper thread U and the lower thread D. However, the slits t2 and t5 are pressed against the overlapped portion 2b. Since the cloth of the object 2 is used, it is possible to suppress the occurrence of deflection and deformation of the overlapping portion 2b.

In particular, since the slits t1 to t7 are formed by the slit of the lock seam, the stable nodules can be easily formed by adjusting the yarn tension, and the movement of the engaging member 11 along the Y-axis direction can be reduced and suppressed. The head 112 of the engaging element 11 swings in the Y-axis direction, and the head 112 of the engaging element 11 swings about the Y-axis or the like. Further, the slide fastener product 1 can be more smoothly connected or separated by the slider 14.

In the zigzag sewing machine 100, the zipper transport mechanism 40 includes a transport gear 41 that includes teeth of the meshing element 11 that meshes with the meshing element connecting body 13, and a transport motor 42 that imparts a rotational motion to the transport gear 41. And the needle plate 24 guides the meshing element coupling body 13 in the same direction as the feeding direction of the workpiece 2 to be sewn.
Thereby, the needle of the sewing needle 26 for positioning the respective needle dropping points a1 to a6, the conveyance of the workpiece 2, and the feeding of the engaging element connecting body 13 can be performed.
In particular, in the conventional sewing machine, it is difficult to convey the continuous irregularities in which the plurality of engaging elements 11 are coupled in the conveying direction as in the meshing element connecting body 13, but the serrated sewing machine 100 can engage the teeth of the carrying gear 41 to the engaging elements. Since the head 112 of the continuous engaging element 11 of the connecting body 13 is conveyed, the engaging element connecting body 13 can be arbitrarily conveyed to the target position with good precision.
Therefore, it is possible to accurately perform the needle drop on the needle drop points a1 to a6, and the seam of the meshing element connecting body 13 with respect to the workpiece 2 can be properly performed.

Further, the needle plate 24 as the zipper guide has a feed groove 243 for guiding the plurality of meshing elements 11 of the meshing element connecting body 13 in the same direction as the feeding direction of the workpiece 2, so When the head portion 112 of the meshing element 11 is engaged with the teeth of the carrier gear 41, it can be stably maintained so that the meshing element connecting body 13 does not come out of the feeding direction, and the needle drop point can be more accurately performed. A1 to a6 perform needle drop.

In addition, the zigzag sewing machine 100 is provided with a zipper puller 49 that prevents the meshing element connecting body 13 conveyed by the transport gear 41 from being detached upward. Therefore, when the head portion 112 of the meshing element 11 is engaged with the teeth of the transport gear 41, It is also possible to stably maintain the meshing element coupling body 13 so as not to be disengaged upward, and it is possible to perform needle drop with respect to the needle drop points a1 to a6 with more excellent precision.

Further, since the conveyance gear 41 is supported by the support arm portion 44 so as to be movable in a direction away from the needle drop position, the engagement element coupling body 13 can be easily removed from the needle plate 24, and workability can be achieved. Upgrade.

Further, the conveyance gear 41 is supported by the base plate 45 together with the conveyance motor 42 and the transmission mechanism 48, and the conveyance gear 41 is supported by the slide guide 46 so as to be movable in a direction away from the needle drop position. Therefore, the engaging element connecting body 13 can be easily removed from the needle plate 24, and the workability can be improved.
Further, since the conveyance gear 41 moves together with the conveyance motor 42 and the transmission mechanism 48, it is possible to suppress the occurrence of the origin displacement of the conveyance gear 41 during the movement, and it is possible to omit the return to the sewing operation after leaving the needle drop position. The seam sewing can be quickly performed by the origin search or the like, and the work efficiency can be improved.

In addition, when the movement operation of the base plate 45 of the conveyance gear 41 is performed by the pneumatic cylinder 47 as an actuator, it is possible to reduce the work load and speed up the work without requiring manual work.

Further, the sawtooth sewing machine 100 is provided with a control device that controls the conveyance motor 42 to drive the element coupling body at a predetermined timing according to the detection of the encoder of the sewing machine motor every time the needle is dropped. 13 moves until the next needle drop point moves toward the feed direction. With this configuration, the meshing element coupling body 13 can be conveyed to the needle drop point which is the target for the sewing of the workpiece 2 in the conveyance direction of the meshing element connecting body 13, and can be easily sewn. Sewing.

Further, the sawtooth sewing machine 100 is provided with a control device that controls the needle motor to be driven at a predetermined timing according to the detection of the encoder of the sewing machine motor every time the needle is dropped, so that the sewing needle is even lower. The number of pendulums up to the needle point is placed on the needle. With this, it is possible to move the sewing needle to the needle drop point which is the target for the sewing of the workpiece 2 in the direction perpendicular to the conveyance direction of the meshing element connecting body 13, and it is possible to more easily perform the proper stitching. Sewing.

[Other examples of zipper transport mechanism (1)]
In the above-described zipper transport mechanism 40, the support shaft 411 that supports the transport gear 41 is arranged parallel to the Z-axis direction. However, the direction of the support shaft 411 is not limited thereto.
For example, as in the zipper transport mechanism 40A shown in FIGS. 20 and 21, the rotation center of the conveyance gear 41A may be oriented in the horizontal direction, for example, in the X-axis direction, and the conveyance gear 41A may be engaged with the engagement member on the outer circumference. The teeth of 11 and the pitch width coincide with the pitch of each of the engaging elements 11 of the engaging element coupling body 13. Further, the illustration of the sewing needle 26 is omitted in Fig. 21.

The zipper transport mechanism 40A includes a support shaft 411A that supports the transport gear 41A and is parallel to the X-axis direction, a transport motor 42A that arranges the output shaft in the X-axis direction, and an active pulley 481A that is transported by the transport motor 42A. Rotating; the driven pulley 483A is fixedly mounted on the support shaft 411A; and the timing belt 484A is straddle from the drive pulley 481A to the driven pulley 483A.
At this time, the conveyance gear 41A is disposed on the lower side of the needle plate 24, and is disposed such that the upper tooth tip of the conveyance gear 41A passes through the opening formed in the needle plate 24, and meshes with the engagement groove 243 from the lower side. The head 112 of the engaging element 11 of the element connecting body 13.

In this manner, even if the zipper transport mechanism 40A that rotates the transport gear 41A about the horizontal axis parallel to the X-axis direction, the meshing element coupling body 13 can be transported satisfactorily in the same manner as the zipper transport mechanism 40.

In the zipper transport mechanism 40A that rotates the transport gear 41A about the X-axis (around the horizontal axis), as shown in FIGS. 22 and 23, the transport gear 41A is placed on the upper side of the needle plate 24, Further, the tooth tip on the lower side of the conveyance gear 41A may be engaged with the head portion 112 of the engagement element 11 of the engagement element coupling body 13 in the feed groove 243 from the upper side.
In addition, at this time, the configuration in which the support shaft 411A, the conveyance motor 42A, the drive pulley 481A, the driven pulley 483A, the timing belt 484A, and the like are transmitted is also disposed on the upper side of the needle plate 24.

[Other examples of zipper transport mechanism (2)]
In the above-described zipper transport mechanism 40, the support shaft 411 that supports the transport gear 41 is arranged parallel to the Z-axis direction, but the direction of the support shaft 411 may be inclined.
For example, as in the zipper transport mechanism 40B shown in Fig. 24, the rotation center of the conveyance gear 41B and the support shaft 411B may be inclined toward the left oblique upper side with respect to the Z-axis direction; the conveyance gear 41B is engaged with the outer circumference. The teeth of the engaging elements 11 are engaged, and the pitch width coincides with the pitch of the respective engaging elements 11 of the engaging element connecting body 13. Further, the illustration of the sewing needle 26 is also omitted in Fig. 24.

The zipper transport mechanism 40B includes a support shaft 411B. The transport motor 42B arranges the output shaft parallel to the support shaft 411B. The drive pulley 481B is rotated by the transport motor 42B. The driven pulley 483B is fixedly mounted to the support rod 42B. The shaft 411B; and the timing belt 484B are straddle from the driving pulley 481B to the driven pulley 483B.
At this time, the conveyance gear 41B is disposed on the upper side of the needle plate 24, and is arranged such that the tooth tip on the left side of the conveyance gear 41B is meshed from the upper right side to the meshing element coupling body 13 in the feed groove 243 of the needle plate 24 Head 112 of element 11.

In the zipper transport mechanism 40B configured to rotate the transport gear 41B about the axis inclined with respect to the Z-axis direction, the meshing element coupling body 13 can be transported satisfactorily in the same manner as the zipper transport mechanism 40.

In the same manner as the zipper transport mechanism 40, the zipper transport mechanisms 40A and 40B support the transport gears 41A and 41B so as to be movable in a direction away from the meshing element connecting body 13 (for example, the right side), and can be transported to the gear 41A, The predetermined position of 41B (the position where the meshing element 11 is engaged) and the retracted position (the position where the conveyance gear 41 is sufficiently apart from the meshing element connecting body 13) may be moved. At this time, the conveyance motors 42A and 42B and the respective configurations for transmitting the rotation operation to the conveyance gears 41A and 41B are preferably supported so as to be movable in the same direction together with the conveyance gears 41A and 41B.
Further, as shown in the example of Fig. 19, the zipper transport mechanisms 40A and 40B are preferably configured to move between a predetermined position of the conveyance gears 41A and 41B and the retracted position by an actuator such as the pneumatic cylinder 47.

[Second embodiment]
A second embodiment of the present invention will be described.
In the above-described zipper transport mechanism 40, the meshing element coupling body 13 is conveyed by one conveyance gear 41, but the meshing element coupling body 13 may be conveyed by two or more conveyance gears.
In the following, the zigzag sewing machine 100 according to the second embodiment of the present invention is described. The zigzag sewing machine 100 includes a slide transport mechanism 40C in which the transport gears 415C and 416C are disposed on the front side and the rear side via the pinhole 242.

The same components as those of the above-described zipper transport mechanism 40 are denoted by the same reference numerals, and the description thereof will not be repeated. Only the components of the sawtooth sewing machine 100 that are different from the above-described configurations will be described, and the same reference numerals will be given to the same components, and the description thereof will not be repeated.
Fig. 25 is a plan view of the zipper transport mechanism 40C, Fig. 26 is a rear view, Fig. 27 is a perspective view of a specific portion thereof, and Fig. 28 is a plan view.

As shown in the figure, the zipper transport mechanism 40C includes two transport gears 415C and 416C, and includes teeth that mesh with the meshing elements 11 of the meshing element connecting body 13; and a transport motor 42C that is provided for each of the transport gears 415C and 416C. The rotation operation; the support mechanism 43C supports the respective conveyance gears 415C and 416C; and the transmission mechanism 48C transmits the rotational force from the conveyance motor 42C to the respective conveyance gears 415C and 416C.
Further, the zipper transport mechanism 40C also includes a zipper puller having the same structure as the zipper pusher 49 described above, but is not shown.

[Additional description of slip zipper]
Here, the slide zipper 10C will be described with reference to FIGS. 29 and 30.
The slide fastener 10C includes a pair of meshing element coupling bodies 131 and 132 that can be coupled and separated. The pair of engaging element coupling bodies 131 and 132 constituting the slide fastener 10C are the same as the meshing element connecting body 13 by the string body 12, but the end structure is different.
As shown in Fig. 29, one of the meshing element connecting bodies 131 includes a pin 15 and an upper stopper 17 which are respectively provided at one end portion and the other end portion of the string body 12 to which the plurality of meshing elements 11 are coupled. .
Further, as shown in Fig. 30, the other engaging element connecting body 132 includes a box pin 16 provided at one end portion of the string body 12 to which the plurality of engaging elements 11 are coupled, and is disposed above the other end portion. Stopper 17.
Further, in Figs. 29 and 30, the number of the engaging elements 11 of the respective engaging element coupling bodies 131, 132 shown is actually smaller than that.

In the meshing element connecting body 131, the plug pin 15 and the upper stopper 17 function as a stopper so that the slider 14 does not fall off from the end portion of the string body 12.
Further, the box pin 16 of the engaging element connecting body 132 is in a state where the slider 14 is located at the end of the engaging element connecting body 131 on the pin 15 side, and the latch 15 and the box pin 16 are inserted by inserting the slider 14. Shapes that match each other. When the slider 14 is moved toward the upper stopper 17 in the matched state, the meshing elements 11 of the meshing element connecting body 131 and the meshing element connecting body 132 can be coupled to each other.

The latch 15 and the box pin 16 (which are also collectively referred to as "opening members") are provided with a thin plate-like slit portion 151 for overlapping and sewn on the back side of the edge portion 2a of the workpiece 2 to be sewn, 161, a plurality of threading holes 152, 162 along the longitudinal direction of the string body 12 are formed in the sewn portions 151, 161.
Further, when the meshing element connecting body 131 is sewn to the object to be sewn 2, the plurality of threading holes 152 of the plug pin 15 are dropped. Further, when the engaging element connecting body 132 is sewn to the object to be sewn 2, the plurality of threading holes 162 of the box pin 16 are dropped.

Further, the upper stopper 17 is almost the same size as the engaging element 11 on the front, rear, left and right, but does not have the narrowed head 112 as the engaging element 11. Further, the upper stopper 17 has a larger thickness than the entire engagement element 11, and thus the slider 14 is held so as not to fall off.

[Configuration of handling gears]
The engaging element connecting bodies 131 and 132 form the plug 15 and the box pin 16 so that the left and right widths are larger than the engaging elements 11 so that the slider 14 can pass when the pair of engaging element connecting bodies 131 and 132 are coupled. The small or front-rear direction is longer than the engagement element 11.
When the engaging element coupling bodies 131 and 132 in which the plug pin 15 or the box pin 16 is present at one end portion are conveyed by the above-described zipper transport mechanism 40 having only one transport gear 41, when the latch 15 or the box pin 16 passes the transport gear 41 The meshing state cannot be formed, and there is a possibility that the conveyance cannot be carried out with good precision.

On the other hand, the zipper transport mechanism 40C includes a front transport gear 415C that meshes with one of the meshing element coupling bodies 131, 132 or the head of the plurality of meshing elements 11 at the front side of the needle drop position (pinhole 242). The rear side carrying gear 416C is engaged with one of the engaging element coupling bodies 131, 132 or the head 112 of the plurality of engaging elements 11 at the rear side of the needle drop position (pinhole 242). As described above, when at least two conveyance gears 415C and 416C are provided via the needle drop position, when the latch 15 or the box pin 16 passes through one of the conveyance gears 415C or 416C, the other conveyance gear 416C or 415C can also be used. Since the meshing element 11 is engaged, the engaging element connecting bodies 131 and 132 can be conveyed with good precision.
In addition, it is also possible to perform reverse feed such as reverse stiching well.

Further, the conveyance gears 415C and 416C are spur gears having the same pitch pitch as the engagement elements 11 of the meshing element coupling bodies 131 and 132, and have the same pitch diameter, and the conveyance gears 415C and 416C are centered on Configure in a front-to-back direction. Further, the conveyance gears 415C and 416C are arranged such that the center distance is narrower than the length of the plug pin 15 and the box pin 16 in the front-rear direction. Further, when the length of one of the plug 15 and the box pin 16 in the front-rear direction is shorter than the other, the conveyance gears 415C and 416C are arranged to be narrower than the length of one of the center distances in the front-rear direction.

[support mechanism]
As shown in Figs. 25 and 26, the support mechanism 43C includes upper and lower base plates 451C and 452C that support the conveyance gears 415C and 416C, the transmission mechanism 48C, and the conveyance motor 42C, and the base plates 451C and 452C. A slide guide 46C that is slidably supported in the X-axis direction.

The upper and lower base plates 451C and 452C are arranged on the sewing machine seat portion 21 via the slide guide 46C so as to be disposed along the XY plane and disposed between the needle drop position and the upright trunk portion 22.
The base plates 451C and 452C are connected in a state of being close to each other, and between these, the driving pulley 481C, the driven pulleys 488C and 489C of the transmission mechanism 48C, and the tension roller 485C are rotatable about the Z axis. Way support.
Further, the upper base plate 451C is fixedly supported by the transport motor 42C on the upper end portion, and the lower base plate 452C is supported on the lower end portion to support the front and rear conveyance gears 415C and 416C so as to be rotatable about the Z-axis.

The slide guide 46C includes a movable block 461C fixedly coupled to the lower base plate 452C, and a slide rail 462C attached to the sewing machine seat portion 21 along the X-axis direction, and is movable up and down through the movable block 461C. The base plates 451C and 452C slide in the X-axis direction.

Further, the right end portion of the upper base plate 451C is provided with the same restriction bracket 452 (see FIG. 14) for restricting the sliding operation of the upper and lower base plates 451C and 452C in the X-axis direction. The bracket is limited, however the illustration is omitted. Further, with the restriction bracket, the tooth tips of the conveyance gears 415C and 416C can be adjusted to be properly engaged with the head portion 112 of the engagement element 11 of the conveyed engagement element coupling body 131 or 132.
Further, one end portion of the pull-out spring 443C that pulls the upper and lower base plates 451C and 452C to the left side is connected to the lower base plate 452C, and the tooth tips of the conveyance gears 415C and 416C are appropriately held. Engaged in the position of the engaging element 11.
Further, by moving the upper and lower base plates 451C and 452C to the right side against the pulling spring 443C, the maintenance of the slide transport mechanism 40C can be easily performed, or the engaging element connecting body 131 or 132 can be removed from the needle plate 24. operation.

Further, one of the conveyance gears 415C and 416C is provided with an origin sensor 413C (see FIG. 31) for detecting the origin of the rotation, and the original of the conveyance gears 415C and 416C can be detected. Point location.

[communication agency]
The conveyance motor 42C is a stepping motor, and the transmission mechanism 48C can arbitrarily control the feed amount of the meshing element coupling body 131 or 132 by the conveyance gears 415C and 416C.
As shown in Fig. 26, the conveyance motor 42C is attached to the upper base plate 451C with the output shaft facing downward.

The transmission mechanism 48C, as shown in Figs. 25 to 28, includes an active pulley 481C that is fixedly mounted on an output shaft of the transport motor 42C, and transmission gears 482C and 483C that are individually meshed with the transport gears 415C and 416C; The driven pulleys 488C and 489C are coaxially coupled to the support shafts 486C and 487C of the transmission gears 482C and 483C; the timing belt 484C is straddle from the driving pulley 481C to the driven pulleys 488C and 489C; and the tension roller 485C is used for the timing belt. 484C gives tension.

The driving pulley 481C, the driven pulleys 488C and 489C, and the tension roller 485C are disposed between the upper and lower base plates 451C and 452C, and the transmission gears 482C and 483C and the conveying gears 415C and 416C are disposed on the lower side of the lower base plate 452C. .

As described above, the transmission mechanism 48C transmits a rotational force to the conveyance gears 415C and 416C through the transmission gears 482C and 483C from the driven pulleys 488C and 489C.
Therefore, since the driven pulleys 488C and 489C and the like are not disposed above the conveyance gears 415C and 416C, the upper side can be vacated, and the conveyance gears 415C and 416C having the smaller outer diameter than the conveyance gear 41 can be disposed. A narrow space around the needle position.

[For other sewing machines]
In the zipper transport mechanism 40C, an example in which two transport gears 415C and 416C around the Z-axis are provided is illustrated. However, as described above, the zipper transport mechanism 40A (see FIG. 20) is on the upper side or the lower side of the needle plate. A carrying gear that rotates around the X-axis may be provided before and after the needle drop position. In this case, it is preferable to simultaneously impart rotation to each of the conveyance gears from the conveyance motor transmission means.
Further, as in the above-described zipper transport mechanism 40B (see FIG. 24), a transport gear that tilts the center of rotation toward the left oblique upper side in the Z-axis direction may be provided before and after the needle drop position. At this time, it is preferable to simultaneously impart rotation to each of the conveyance gears from the conveyance motor transmission means.

[Control system of sewing machine]
The control system of the sewing machine 100 on which the above-described zipper transport mechanism 40C is mounted is shown in Fig. 31. As described above, the sewing machine 100 to which the zipper transport mechanism 40C is attached is suitably used for sewing the slide fastener 10C having the meshing element connecting bodies 131 and 132 shown in Figs. 29 and 30. Therefore, the control system of the sewing machine 100 in which the slide transport mechanism 40C is mounted will be described first, and the sewing control of the slide fastener 10C performed by the sewing machine 100 will be described later.
Further, the zipper transport mechanisms 40, 40A, and 40B can also sew the slide fastener 10C.

As shown in Fig. 31, in the control device 90 of the sewing machine 100, the sewing machine motor 105, the needle motor 106, the feed adjustment motor 107, the conveyance motor 42C, and the like are connected to the respective drive circuits 105a, 106a, 107a, 42Ca, and 253a. Pressing piece lift motor 253.
Further, in the control device 90, the origin sensor 413C and the setting input unit 93 of the transport motor 42C are connected to the respective interfaces 413Ca and 93a.
Further, in the control device 90, an encoder 108 that detects the rotation angle of the upper shaft is connected to the transmission interface 108a.
As shown in FIG. 32, the setting input unit 93 includes a display screen 931 at the center and a plurality of input switches 932 to 941 around it. The setting input unit 93 inputs various parameters and the like for performing the sewing control of the slide fastener 10C. This will be described later.

Further, the control device 90 includes a CPU 91 that performs predetermined control on the sewing machine motor 105, the needle motor 106, the feed adjustment motor 107, the conveyance motor 42C, and the presser lift motor 253, and the memory 92, which is written Enter the control program and setting data that are useful to perform this control.

[Setting parameters of the sewing control of the slide zipper by the sewing machine]
Fig. 33 is an explanatory view showing setting parameters when the meshing element connecting body 131 of the slide fastener 10C is sewn. The setting parameters include setting parameters regarding the needle drop position (setting parameters for controlling the needle head motor 106 and the feed adjusting motor 107), and setting parameters for the feeding of the engaging element connecting body 131 of the slide zipper 10C (control) The setting parameter of the conveyance motor 42C).
First, the setting parameters regarding the needle drop position will be described.

Fig. 34 is an explanatory view showing the needle drop position of the workpiece 2 and the engaging element connecting body 131. Further, in the 34th drawing, for the sake of explanation, the number of the engaging elements 11 of the engaging element coupling body 131 shown in the drawing is smaller than actually.
As shown in FIGS. 33 and 34, the engagement of the engaging element connecting body 131 is performed by the predetermined sewing form for each part of the engaging element connecting body 131. In other words, the meshing element connecting body 131 is sewn by sequentially executing a plurality of sewing patterns selected in advance.

[Examples of various sewing patterns]
Here, a part of the sewing form is exemplified in FIGS. 35A to 36D. A square of the squares in each figure corresponds to the needle drop position, and the numbers in the respective cells indicate the order in which the needles are dropped. In addition, the symbol H in the figure is a reference position in the left-right direction, and is represented by 0, and the right side is represented by a positive value, and the left side is represented by a negative value.

The form No. 1 shown in Fig. 35 is a sewing form called a blind stitch in a zigzag stitch, and a slit having a trapezoidal shape as viewed from above is formed, and is suitable for needle drop around the engaging element 11. The situation. In the case where a plurality of engaging elements 11 are arranged as in the engaging element connecting body 131 and the engaging elements 11 are sewn by a blind slit, the motion control according to the form No. 1 equivalent to the number of the engaging elements 11 is repeatedly performed. .

The sewing form of each number determines the following items: the position of each needle drop position, the order of each needle drop position, and the left and right position coordinates of each needle drop position (α, β, γ, δ in each figure), The feed amount of the workpiece 2 at each needle drop position. The needle drop parameters for determining the sewing form can be arbitrarily set using the setting input unit 93 described above.
At the time of sewing, the needle motor 106 is controlled so that the left and right position coordinates conform to the respective needle drop positions in the order of the needle drop position determined by the sewing form, and the feed adjustment motor 107 is controlled so that the feed amount conforms to each needle drop. position.

The form No. 2 shown in Fig. 35B is a zigzag-like slit formed by swinging in the left-right direction every three points in a sewing form called a three-point sawtooth in a zigzag stitch. The form is also suitable for the case where the needle is placed around the engaging element 11. In the case where a plurality of engaging elements 11 are arranged and the respective engaging elements 11 are sewn by three-point serrations, the operation control according to the form No. 2 equivalent to the number of the engaging elements 11 is repeatedly performed.

The form No. 3 shown in Fig. 35C is a sewing form called bar tacking, and is formed in a slit that reciprocates linearly in the left-right direction. The sewing form is suitable for preventing the seam from being detached by repeating the plurality of times, or fastening and fixing the seam.

The form No. 4 shown in Fig. 35D is a sewing form of a lock stitch, and a linear slit is formed at a constant interval toward the rear in a predetermined position in the left-right direction.
The form No. 5 shown in Fig. 36A is a sewing form called a lock stitch (back stitch), and a straight slit is formed at a constant interval toward the front in a predetermined position in the left-right direction.

The form No. 6 shown in Fig. 36B is a sewing form called a two-point sawtooth in a zigzag slit, and is swung in the left-right direction every two points to form a zig-zag slit toward the rear.
The form No. 7 shown in Fig. 36C is a sewing form called a two-point sawtooth (back stitch) in the zigzag slit, and is swung in the left-right direction every two points to form a zig-zag toward the front. Sew.

The form No. 8 shown in Fig. 36D is a sewing form of the lock stitch, and the shape is the same as that of the form No. 4, but a straight slit is formed at a shorter interval.

The parameters of the sewing form described above can be set using the setting input unit 93 shown in Fig. 32. The setting input unit 93 can switch the display image indicating the input content displayed on the display screen 931 by switching operation, and can change the assignment of functions performed by the surrounding input switches 932 to 941.
Further, in Fig. 32, the display state of the display image in which the needle drop parameter of the sewing form is input is shown.

The input switches 932 and 933 of the setting input unit 93 in Fig. 32 are used to input the increase or decrease of the needle drop position in the sewing form.
The input switches 934, 935 are used to input the increase or decrease of the position coordinates of the left and right position of the selected needle drop position.
The input switches 936, 937 are used to input the increase or decrease of the feed amount of the workpiece 2 at the selected needle drop position.
Input switches 938, 939 are used to input the addition and deletion of the needle drop position.
The input switch 940 is used to input the sewing pattern to the last needle.
The input switch 941 is used to determine the setting of the input operation of the input switches 932 to 940 as the needle drop parameter of the sewing form.

The information on the sewing form in which the needle drop parameter is determined is registered in the memory 92.
The sewing form of each of the above numbers is an example of a registered person set in advance by the setting input unit 93 of Fig. 32.
For example, the information on the sewing form in which the needle drop points of a1 to a6 shown in the above-mentioned second drawing are determined in the above-described parameters is also registered in the memory 92, and the engaging elements 11 applied to the slide fastener 10C are applied. The sewing can also be sewn.
Similarly, the needle drop points of a1, a3 to a5 of the slit shown in Fig. 7 and the needle drop points of a1, a2, and a6 of the slit shown in Fig. 8 determine the sewing form of the above parameters. The data is also registered in the memory 92, and the sewing of the engaging elements 11 applied to the slide fastener 10C may be performed.

[Specific example of setting parameters for the needle drop position]
The setting parameters of the needle drop position for performing the seam sewing of the meshing element connecting body 131 of Fig. 34 will be described based on the left half of Fig. 33.
In Fig. 34, Ps indicates the needle drop position as the sewing start position, and Pe indicates the needle drop position as the sewing end position.
In Fig. 33, the "sewing machine step" indicates the order of the sewing form to be executed.
"Form No." indicates the form number of the sewing form executed in each "sewing machine step".
"Number of sewing machine stitches" indicates that the selected sewing pattern is executed to the first stitch. For example, in the case where the number of stitches of the sewing machine is more than the number of stitches determined by the selected sewing form, for example, an integer multiple is repeated, and sewing in an integer number of sewing forms is repeated.

In the sewing machine step 0 of Fig. 33, the form No. 7 was selected, and the number of sewing machine stitches was set to zero.
In the sewing machine step 0, the positioning operation of the sewing needle with respect to the sewing start position Ps of Fig. 34 is set. That is, corresponding to the setting content of the sewing machine step 0, the needle is placed so that the sewing needle is positioned at the needle drop position of the first needle of the form No. 7. However, since the number of stitches of the sewing machine is 0, the needle drop is not performed.

In the sewing machine step 1 of Fig. 33, the form No. 7 was selected, and the number of sewing machine stitches was set to 5.
The sewing machine step 1 corresponds to the arrow P1 of Fig. 34, and the end portion of the string body 12 protruding from the front end portion of the engaging element connecting body 131 is subjected to 2-point sawtooth according to the needle drop parameter of the form No. 7. 5 stitches of reverse stitching.

In the sewing machine step 2 of Fig. 33, the form No. 6 was selected, and the number of sewing machine stitches was set to 6.
This sewing machine step 2 corresponds to the arrow P2 of Fig. 34, and the end portion of the string body 12 protruding from the front end portion of the engaging element connecting body 131 is subjected to 2-point sawtooth according to the needle drop parameter of the form No. 6. 6-pin back slit.

In the sewing machine step 3 of Fig. 33, the form No. 8 was selected, and the number of sewing machine stitches was set to 3.
The sewing machine step 3 corresponds to the arrow P3 of Fig. 34, and the 3-pin stitching is performed in accordance with the needle drop parameter of the form No. 8 along the end of the upper stopper 17 on the left side thereof.

In the sewing machine step 4 of Fig. 33, the form No. 3 was selected, and the number of sewing machine stitches was set to 3.
The sewing machine step 4 corresponds to the arrow P4 of Fig. 34, and the left and right stoppers 17 and the adjacent engaging elements 11 are spanned to the left and right of the string body 12, and are executed according to the needle drop parameters of the form No. 3. 3 sets of knots.

In the sewing machine step 5 of Fig. 33, the form No. 1 is selected, and the number of stitches of the sewing machine is set to nx4 (the number of the engaging elements 11 of the n-type engaging element connecting body 131, for example, n = 3 in the example of Fig. 34) .
The sewing machine step 5 corresponds to the arrow P5 of Fig. 34, from the upper side of the engaging element 11 toward the left side, and the zigzag slit formed by the blind stitch of 4 stitches is executed in accordance with the needle drop parameter of the form No. 1. Also, for all the engaging elements 11, the zigzag slit formed by the same blind slit is repeatedly executed.

In the sewing machine step 6 of Fig. 33, the form No. 3 was selected, and the number of sewing machine stitches was set to 4.
The sewing machine step 6 is performed corresponding to the arrow P6 of Fig. 34, spanning the left and right sides of the string body 12 between the engaging element 11 and the pin 15 adjacent to the plug 15, and performing the needle drop parameter according to the form No. 3. 4-pin set of knots.

In the sewing machine step 7 of Fig. 33, the form No. 4 was selected, and the number of sewing machine stitches was set to 7.
The sewing machine step 7 corresponds to the arrow P7 of Fig. 34, and passes through the respective threading holes 152 from the front end portion of the sewing portion 151 of the plug pin 15 toward the rear end portion, and performs the 7-pin according to the needle drop parameter of the form No. 4. Part of the lock seam.

In the sewing machine step 8 of Fig. 33, the form No. 5 was selected, and the number of sewing machine stitches was set to 6.
The sewing machine step 8 corresponds to the arrow P8 of Fig. 34, and the rear end portion of the sewn portion 151 of the plug pin 15 passes through the respective threading holes 152 toward the front end portion, and the needle is executed in accordance with the needle drop parameter of the form No. 5. The back seam of the seam.

In addition, as for the setting parameters of the "sewing machine step", "form No.", and "number of sewing machine stitches" for setting the needle drop position of the meshing element connecting body 131 shown in Fig. 33 described above, The content can also be arbitrarily set by the setting input unit 93.
In other words, the setting input unit 93 can switch the display image of the display screen 931 to the input image of the setting parameter of the needle drop position by the switching operation, and use the surrounding input switches 932 to 941 to set " Sewing machine steps", "Form No.", "Number of sewing machine stitches".
Further, the setting contents of the setting parameters of the needle drop position are also registered in the memory 92.

Further, in the specific example of the setting parameter of the needle drop position, the seaming of the meshing element connecting body 131 is exemplified, but the setting of the meshing element connecting body 132 can be determined in the same manner. parameter.
That is, when the engaging element connecting body 132 is sewn, the box pin 16 is located at the front end portion, and the upper stopper 17 is located at the rear end portion, so the setting parameter is set such that the sewing of the box pin 16 is performed at the initial stage of sewing. The portion 161 performs the reverse stitching and the lock stitching of the lock stitch, and performs the tying of the upper stopper 17 at the end of the sewing, and performs two points on the end of the string body 12 protruding from the rear end portion of the engaging element connecting body 132 at the end of the sewing. The sawtooth serrated slit and the reverse slit thereof are the same as those of the sewn stitching of the engaging element connecting body 131 as long as the above is considered.

[Setting parameters for the feed of the engaging element link]
Next, the content of the setting parameters of the feed of the meshing element coupling body 131 of the slide zipper 10C will be described.
The right half of Fig. 33 shows the setting parameters of the feed of the engaging element connecting body 131 for performing the sewing of the meshing element connecting body 131 of Fig. 34.
In other words, the stitching of the engaging element connecting body 131 is performed by the predetermined sewing form for each part of the engaging element connecting body 131 as described above, but by the sewing form corresponding to each of the sewing forms. The device mode executes the feed of the meshing element coupling body 131 by the zipper transport mechanism 40C.

[Examples of various device modes]
Fig. 37 is a selection image of the device mode displayed on the display screen 931 of the setting input unit 93 when the setting parameters for the feeding of the engaging element connecting body 131 are set.
The device modes will be described in order.

In the apparatus mode of the "zipper stitching", as in the form No. 1 or the form No. 2 of the sewing form described above, the feeding amount and the pressing member 25 suitable for the sewing of the periphery of the engaging element 11 are set. the height of. In other words, the feed amount is set to match the feed amount of the workpiece to be sewn for each needle of the form No. 1 or the form No. 2 of the sewing form.
Specifically, a length of one quarter of the pitch of each of the meshing elements 11 in the meshing element connecting body 131 (the distance from the center of the engaging element 11 adjacent to the Y-axis direction to the center of the engaging element 11) is taken as a unit. The reference feed amount, and the override of the reference feed amount is set in the device mode.
In the sewing form of the form No. 1 or the form No. 2, since the sewing is performed on one of the meshing elements 11 in the second embodiment, the pitch of the engaging elements 11 is set in the device mode of the "zipper disk". One-point basis feed amount ×1.
Further, the height of the presser member 25 is set to a normal height so that the pressing pressure is normal.

In the device mode of the "line saw", the feed is suitable for the zigzag stitching of the end portion of the string body 12 at the same time as in the form No. 6 or the form No. 7 of the sewing form described above. the amount. In other words, the feed amount corresponding to the feed amount of the workpiece to be sewn per needle of the form No. 6 or the form No. 7 of the sewing form is set.
Further, the height of the presser member 25 is set to a slight push-up height so that the pressing pressure is lower than usual.
For example, when the feed amount for the two-point serration of the string body 12 is set to be equal to the reference feed amount, the reference feed amount ×1 is set in the device mode of the "line saw tooth".

In the device mode of the "upper stopper locking seam", the amount of feed suitable for performing the lock stitching along the end portion of the upper stopper 17 is set as in the above-described sewing form No. 8. In other words, the feed amount corresponding to the feed amount of the workpiece to be sewn per needle of the form No. 8 in the sewing form is set.
Further, the height of the presser member 25 is set to a normal height so that the pressing pressure is normal.
For example, when the feed amount of the lock stitching along the end portion of the upper stopper 17 is set to be equal to the amount of the reference feed amount, the reference setting is set in the device mode of the "upper stopper lock seam". Give the amount ×1.

In the apparatus mode of the "upper stopper", the amount of feed suitable for the tying between the upper stopper 17 and the engaging element 11 is set as in the form No. 3 of the sewing form described above.
Further, the height of the presser member 25 is set to a normal height so that the pressing pressure is normal.
For example, when the feed amount of the knot is set to 0, it is set to 0 in the device mode of the "upper stop".

In the device mode of the "opening of the fastener", the threading hole suitable for the sewing portions 151, 161 corresponding to the pin 15 or the box pin 16 is set as in the form No. 4 or the form No. 5 of the sewing form described above. The amount of feed between the 152 and 162 intervals of the lock seam. In other words, the feed amount corresponding to the feed amount of the workpiece to be sewn per needle of the form No. 4 or the form No. 5 of the sewing form is set.
Further, the height of the presser member 25 is set to a slight push-up height so that the pressing pressure is lower than usual.
For example, when the interval between the threading holes 152 and 162 of the latch 15 or the box pin 16 is set to twice the amount of the reference feed amount, the reference feed amount × 2 is set in the device mode of the "opening member lock stitch".

The device mode of the "opening jagged" is a feed amount suitable for the zigzag stitch of the pin 15 or the box pin 16.
Further, the height of the presser member 25 is set to a slight push-up height so that the pressing pressure is lower than usual.
For example, when the interval between the latch 15 or the serration of the cartridge pin 16 is set to be equal to the reference feed amount, the reference feed amount ×1 is set in the device mode of the "opening serration".

The device mode of the "opening member" is set to be suitable for the tying of the pin 15 and the engaging element 11 or the box pin 16 and the engaging element 11 as in the case of the sewing form No. 3 described above. Feed rate.
Further, the height of the presser member 25 is set to a slight push-up height so that the pressing pressure is lower than usual.
For example, when the feed amount of the knot is set to 0, it is set to 0 in the device mode of "opening knot".

"Sewing completed" indicates that the sewing is completed and the feed amount is set to 0.

The feed amount in each of the above device modes can be arbitrarily set by the setting input unit 93.
In other words, the setting input unit 93 can switch the display image of the display screen 931 to the input image of the device mode by the switching operation, and set the "feed amount" and "pressure" using the surrounding input switches 932 to 941. Cloth (pressing pressure)".
Further, the size of the reference feed amount can be arbitrarily set by inputting a specific numerical value.
The setting of the feed amount, the height of the presser member, or the setting of the reference feed amount in the device mode is also registered in the memory 92.

[Specific Example of Setting Parameters of Feeding of Engagement Element Linkage]
The contents of the setting parameters of the feed of the engaging element connecting body of Fig. 33 will be described with reference to Fig. 34.
In the 33rd drawing, the sewing machine steps 0 to 8 regarding the setting parameters of the needle drop position are the device steps 1 to 9 which individually correspond to the setting parameters regarding the feed of the engaging element connecting body.
In Fig. 33, "device steps" indicate the order of the device steps performed.
The "device mode" indicates the type of the device mode and the feed direction described above.
"Continuous stitch number" indicates the number of stitches that are selected for the selected device mode.

In the device step 1 of Fig. 33, the device mode of the "zipper stitching plate" is selected, and the feeding direction is set to the forward feeding direction (the direction in which the engaging element connecting body 131 is fed forward), and the number of sewing machines is set to 1.
In the step 1 of the apparatus, the amount of the feed operation of the meshing element connecting body 131 at the time of the positioning operation of the sewing needle at the sewing start position Ps of Fig. 34 is set.

In the device step 2 of Fig. 33, the device mode of "line sawtooth" is selected, and the feed direction is set in the reverse feed direction (the direction in which the meshing element connecting body 131 is fed rearward), and the number of stitches of the sewing machine is set to 5.
In step 2 of the apparatus, the reverse feed of the engaging element connecting body 131 is performed corresponding to the arrow P1 of Fig. 34, and the reverse feeding corresponds to the string body 12 protruding from the front end portion of the engaging element connecting body 131. The 5-point indentation of the 2-point serration performed at the end.

In the step 3 of the apparatus of Fig. 33, the device mode of "line sawtooth" is selected, the feed direction is the forward feed direction, and the number of stitches of the sewing machine is set to 6.
In step 3 of the apparatus, the forward feed of the engaging element connecting body 131 is performed corresponding to the arrow P2 of Fig. 34, and the forward feeding corresponds to the rope shape protruding from the front end portion of the engaging element connecting body 131. A 6-point serrated slit of 2-point serration performed at the end of the body 12.

In the step 4 of the apparatus of Fig. 33, the device mode of the "zipper stitch" is selected, the feed direction is the forward feed direction, and the number of stitches of the sewing machine is set to 3.
In step 4 of the apparatus, the forward feed of the engaging element connecting body 131 is performed corresponding to the arrow P3 of Fig. 34, which corresponds to the 3-pin along the end of the upper stopper 17. Part of the lock seam.

In the device step 5 of Fig. 33, the device mode of "upper stop member" is selected, the feed direction is the forward feed direction, and the number of stitches of the sewing machine is set to 4.
The step 5 of the apparatus corresponds to the arrow P4 of Fig. 34, and the feeding of the engaging element connecting body 131 is stopped corresponding to the four-pin portion between the upper stopper 17 and the adjacent engaging element 11.

In the device step 6 of Fig. 33, the device mode of the "zipper stitch" is selected, the feed direction is the forward feed direction, and the number of stitches of the sewing machine is set to n × 4 (the engaging element 11 of the n-type engaging element connecting body 131) The number).
In step 6 of the apparatus, the forward feed of the engaging element connecting body 131 is performed corresponding to the arrow P5 of Fig. 34, and the forward feeding corresponds to the blind stitching of 4 stitches for each engaging element 11. Formed serrated seams. Further, the forward feed of the engaging element connecting body 131, which corresponds to the zigzag slit formed by the blind stitching for all the engaging elements 11, is repeatedly performed.

In the step 7 of the apparatus of Fig. 33, the device mode of "opening of the knot" is selected, the feed direction is the forward feed direction, and the number of stitches of the sewing machine is set to 4.
The step 7 of the apparatus corresponds to the arrow P6 of Fig. 34, and the engagement of the engaging element connecting body 131 is stopped corresponding to the tying by the 4-pin between the engaging element 11 and the latch 15.

In the step 8 of the apparatus of Fig. 33, the device mode of "opening lock seam" is selected, the feed direction is the forward feed direction, and the number of stitches of the sewing machine is set to 7.
In step 8 of the apparatus, the forward feed of the engaging element connecting body 131 is performed corresponding to the arrow P7 of Fig. 34, which corresponds to the front end portion of the sewn portion 151 of the plug pin 15 toward the rear end. The 7-pin seam lock performed by the department.

In the step 9 of the apparatus of Fig. 33, the device mode of "opening lock seam" is selected, the feed direction is the reverse feed direction, and the number of stitches of the sewing machine is set to 6.
In step 9 of the apparatus, the reverse feed of the engaging element connecting body 131 is performed corresponding to the arrow P8 of Fig. 34, and the reverse feeding is performed from the rear end portion of the stud portion 151 of the plug pin 15 toward the front end portion. The 6-pin stitching seam is reversed.

In the device step 10 of Fig. 33, the device mode of "sewing completed" is set.
By the device step 10, not only the feeding operation of the element connecting body 131 but also all the sewing operations are ended.

Further, as the setting contents of the "device step", the "device mode", and the "continuous stitch number" for setting the feed of the meshing element connecting body shown in the 33rd drawing, the setting contents can be set by the setting input. The part 93 is arbitrarily set.
Fig. 38 is a display image of the display screen 931 of the setting input unit 93 when the setting parameters for the feeding of the engaging element connecting body are set.
The setting input unit 93 can switch the display image of the display screen 931 to the input image of the setting parameter of the feeding of the meshing element connecting body of FIG. 38 by performing the switching operation, and use the surrounding input switch 932. From ~941, set "Device Step", "Device Mode", and "Continuous Pin Count".
Further, the set parameter for the feed of the engaging element connecting body is integrated with the setting parameter regarding the needle drop position described above, and is set in the memory 92 as a setting parameter of the sewing control of the slip fastener. . At the time of sewing, the operation control of the sewing sewing is performed by reading the setting parameters of the sewing control of the registered slide fastener.

Further, in the specific example of the setting parameters of the feeding of the engaging element connecting body, the sewing of the engaging element connecting body 131 is exemplified, but the same can be applied to the sewing of the engaging element connecting body 132. The way to determine the parameters.
That is, when the engaging element connecting body 132 is sewn, the box pin 16 is located at the front end portion, and the upper stopper 17 is located at the rear end portion, so that the setting parameters regarding the feeding of the engaging element connecting body are made corresponding to the following cases. In the initial stage of sewing, the back stitching and the lock stitching of the lock stitch are performed on the stitching portion 161 of the box pin 16, and at the end of the sewing, the upper stopper 17 is engaged and the engaging member 132 is engaged. The end portion of the string-like body 12 projecting at the rear end portion performs the sawtooth slit of the two-point sawtooth and the reverse stitching thereof; the same setting as the seam sewing of the engaging element connecting body 131 is performed in consideration of the above.

[Sewing operation of sliding zipper products by serrated sewing machine]
For example, a case where the engaging element connecting body 131 on the left side of the slip fastener 10C is sewn to the end edge portion 2a of the workpiece 2 is used, and the sawtooth loaded with the zipper transport mechanism 40C is shown in FIGS. 33 and 34. The sewing operation of the sewing machine 100 will be described.

First, the setting parameters of the sewing control of the slippery zipper are read from the memory 92, and the needle motor 106 and the feed adjustment motor 107 are controlled in accordance with the sewing machine step 0 regarding the setting parameter of the needle drop position in FIG. The needle is positioned at the sewing start position Ps of Fig. 34.
Further, in accordance with the device step 1, the transport motor 42C and the presser lift motor 253 are controlled, and the presser member 25 is set to apply a general pressing pressure, and the engaging element coupling body 131 is fed forward by one stroke with a reference feed amount ×1. Share.

Next, the sewing machine motor 105 is started in accordance with the sewing machine step 1 regarding the setting parameters of the needle drop position of Fig. 33, and the needle motor 106 and the feed adjustment motor 107 are controlled, and the string body is in accordance with the arrow P1 of Fig. 34. The front end portion of 12 is reversed with a 5-pin zigzag stitch.
Further, in synchronization with this, in accordance with the device step 2, the conveyance motor 42C and the presser lift motor 253 are controlled, the presser member 25 is set to apply a low pressing pressure, and the meshing element connecting body 131 is reversely fed by the reference feed amount ×1. Give 5 needles.

Next, the needle motor 106 and the feed adjustment motor 107 are controlled in accordance with the sewing machine step 2 regarding the setting parameter of the needle drop position in Fig. 33, and the front end portion of the string body 12 is carried out in accordance with the arrow P2 of Fig. 34. The serrated seam of the needle.
Further, in synchronization with this, in accordance with the device step 3, the conveyance motor 42C and the presser lift motor 253 are controlled, the presser member 25 is set to apply a low pressing pressure, and the meshing element connecting body 131 is forwarded by the reference feed amount ×1. Feed 6 needles.

Next, the needle motor 106 and the feed adjustment motor 107 are controlled in accordance with the sewing machine step 3 regarding the setting parameter of the needle drop position in Fig. 33, and the left side of the upper stopper 17 is performed in accordance with the arrow P3 of Fig. 34. The seam of the needle.
Further, in synchronization with this, in accordance with the device step 4, the transport motor 42C and the presser lift motor 253 are controlled, the presser member 25 is set to apply a general pressing pressure, and the meshing element connecting body 131 is forwarded by the reference feed amount ×1. Feed 3 needles.

Next, the needle motor 106 and the feed adjustment motor 107 are controlled in accordance with the sewing machine step 4 regarding the setting parameter of the needle drop position of Fig. 33, and the upper stopper 17 and the engaging member 11 are in accordance with the arrow P4 of Fig. 34. 4 sets of knots are made between.
In addition, in synchronization with this, in accordance with the device step 5, the conveyance motor 42C and the presser lift motor 253 are controlled, and the presser 25 is set to apply a normal pressing pressure, and the engagement of the meshing element connecting body 131 is stopped.

Next, the needle motor 106 and the feed adjustment motor 107 are controlled in accordance with the sewing machine step 5 regarding the setting parameter of the needle drop position in Fig. 33, and each of the engaging elements 11 is subjected to four needles in accordance with the arrow P5 of Fig. 34. The serrated seam formed by the blind seam.
Further, in synchronization with this, in accordance with the device step 6, the transport motor 42C and the presser lift motor 253 are controlled, the presser member 25 is set to apply a general pressing pressure, and the meshing element connecting body 131 is forwarded by the reference feed amount ×1. Feed n × 4 needles.

Next, the needle motor 106 and the feed adjustment motor 107 are controlled in accordance with the sewing machine step 6 regarding the setting parameters of the needle drop position of Fig. 33, and are carried out between the engaging member 11 and the latch 15 in accordance with the arrow P6 of Fig. 34. 4-pin set of knots.
In addition, in synchronization with this, in accordance with the device step 7, the conveyance motor 42C and the presser lift motor 253 are controlled, and the presser 25 is set to apply a low pressing pressure, and the engagement of the meshing element connecting body 131 is stopped.

Next, the needle motor 106 and the feed adjustment motor 107 are controlled in accordance with the sewing machine step 7 regarding the setting parameter of the needle drop position in Fig. 33, and the front end of the slit portion 151 of the plug pin 15 is obtained in accordance with the arrow P7 of Fig. 34. The portion of the threading hole 152 is locked to the rear end portion by 7 stitches.
Further, in synchronization with this, in accordance with the device step 8, the transport motor 42C and the presser lift motor 253 are controlled, the presser member 25 is set to apply a low pressing pressure, and the meshing element connecting body 131 is forwarded by the reference feed amount ×2. Feed 7 needles.

Next, the needle motor 106 and the feed adjustment motor 107 are controlled in accordance with the sewing machine step 8 regarding the setting parameter of the needle drop position in Fig. 33, from the stitching portion 151 of the latch 15 in accordance with the arrow P8 of Fig. 34. The end portion faces the front end portion and performs a back stitching of 6 stitches for each of the threading holes 152.
Further, in synchronism with this, according to the device step 9, the transport motor 42C and the presser lift motor 253 are controlled, the presser member 25 is set to apply a low pressing pressure, and the meshing element connecting body 131 is reversely fed with the reference feed amount ×2. Give 6 needles.

Thereby, the sewing needle reaches the sewing end position Pe. Further, in accordance with the device step 10, the conveyance motor 42C and the presser lift motor 253 are controlled to raise the presser 25 to the cloth release position, the feed operation of the conveyance gears 415C and 416C is stopped, and the drive of the sewing machine motor 105 is stopped.
Then, the sewn stitching of the engaging element connecting body 131 is completed.

[Technical Effect of Second Embodiment]
The sawtooth sewing machine 100 including the above-described zipper transport mechanism 40C has a transport gear 415C that meshes with the meshing element 11 at the front side of the needle drop position, and a transport gear 416C that meshes with the meshing element 11 at the rear side of the needle drop position.
Therefore, in the case where the engaging element connecting body 131 having the plug 15 or the engaging element connecting body 132 having the box pin 16 is sewn to the object to be sewn 2, it is also possible to pass the pin 15 or the box pin 16 near the needle drop position. At least one of the conveyance gears 415C and 416C is meshed with the meshing element 11, and the meshing element connecting bodies 131 and 132 can be conveyed more accurately, so that sewing with high sewing quality can be performed.

Further, the sawtooth sewing machine 100 including the zipper transport mechanism 40C includes a setting input unit 93 that inputs parameters including the type of sewing (sewing form), the order, the number of stitches, and the amount of operation, and the control device 90 includes The feed adjustment motor 107, the needle motor 106, the sewing machine motor 105, and the zipper transport mechanism that control the feed mechanism are sewn from the setting parameters of the engagement elements of the engagement elements connected to the parameters input by the setting input unit 93. 40C.
Therefore, when the type of sewing such as the self-locking seam is changed to the serrated seam or the knot, the sewing of the engaging element connecting bodies 131 and 132 can be stopped at an appropriate timing without changing the type in the middle. Since it is necessary to perform the operation of switching the type of sewing, etc., when the sewing of the engaging element connecting bodies 131 and 132 is started, the sewn sewing can be completed without the need to operate at the end. Therefore, the work load of the operator of the sewing machine can be drastically reduced.
Further, since it is not necessary to perform the operation of switching the sewing type in the middle, the influence of the operation technique of the operator of the sewing machine is lowered, so that high-quality sewing can be stably performed regardless of proficiency.

[other]
The configuration of the head portion 112 of the engaging element 11 of the meshing element coupling bodies 13, 131, 132 of the slip zippers 10, 10C is not limited to that shown in Fig. 4. For example, the head configuration of a wide variety of engaging elements utilized in conventional slip zippers can be utilized.
Further, similarly, the shape of the latch 15 or the box pin 16 of the slide fastener 10C can be applied to various shapes.

Further, in the case where the feed adjustment motor is provided in the feed mechanism, the feed amount is adjusted by the feed adjustment motor at a predetermined timing based on the detection of the encoder of the sewing machine motor, and the data memory is prepared in addition to the data memory. The specific numerical data of the pendulum amount of the needle-sharing motor for the needle drop of each needle drop point, the amount of advance movement caused by the conveyance motor 42, and the feed amount of the workpiece to be sewn by the motor can be adjusted. The engagement of the engaging element connecting bodies 13, 131, 132 by the sawtooth sewing machine 100 is performed more satisfactorily.

[Industry use possibility]

The present invention can be utilized for sewing a slip zipper in which a meshing element is coupled by a string body.

1, 1A, 1B, 1C‧‧‧ slip zipper products

2‧‧‧Sewn goods

2a‧‧‧End edge

2b‧‧‧ overlap

10, 10C‧‧‧Slip zipper

11‧‧‧ Engagement components

12‧‧‧String

13, 131, 132‧‧‧ Engagement element link

14‧‧‧Sliding parts

15‧‧‧Latch

16‧‧‧Box

151, 161‧‧ ‧ sewing department

152, 162‧‧‧ threading holes

20‧‧‧Sewing machine frame

24‧‧‧ Needle plate (zipper guide)

26‧‧‧Sewing needle

40, 40A, 40B, 40C‧‧‧ zipper handling mechanism

41, 41A, 41B, 415C, 416C‧‧‧Transport gears

42, 42A, 42B, 42C‧‧‧ carry motor

43, 43C‧‧‧Support institutions

45‧‧‧Base board

46, 46C‧‧‧Slip guides

47‧‧‧Pneumatic cylinder (actuator)

90‧‧‧Control device

93‧‧‧Setting input section

931‧‧‧Display screen

932~941‧‧‧ input switch

100‧‧‧Sawtooth Sewing Machine (Sewing Machine)

105‧‧‧Sewing machine motor

106‧‧‧Shaped needle motor

107‧‧‧Feed adjustment motor

111‧‧‧foot

112‧‧‧ head

116, 117‧‧‧ side

242‧‧‧ pinhole

243‧‧‧ Feeding ditch

253‧‧‧ Lift motor

413‧‧‧Home sensor

414‧‧‧Test board

A1, a11‧‧‧ head tribe pinpoint

A2～a6‧‧‧End edge tribe pinpoint

D‧‧‧Underline (sewing thread)

R1, R2‧‧‧ area

T1～t7‧‧‧ slit

U‧‧‧Online (sewing thread)

Fig. 1 is a plan view showing a slide fastener product according to a first embodiment of the invention.

[Fig. 2] is an enlarged plan view of a sliding zipper product.

[Fig. 3] is a perspective view of an engaging element.

[Fig. 4] is an enlarged plan view showing a state in which the meshing elements are meshed with each other partially cut away.

[Fig. 5] A view of the needle drop point of the slit of the engaging element coupling body on the left side viewed from the rear.

[Fig. 6] An enlarged plan view of a comparative example (1) of a slide fastener product.

[Fig. 7] An enlarged plan view of a comparative example (2) of a slide fastener product.

[Fig. 8] An enlarged plan view of an embodiment (2) of a slide fastener product.

[Fig. 9] An enlarged plan view of an embodiment (3) of a slide fastener product.

Fig. 10 is an enlarged plan view showing another example of the slide fastener product.

[Fig. 11] Fig. 11 is a perspective view of a sawtooth sewing machine according to an embodiment of the invention.

[Fig. 12] A perspective view of a needle plate.

[Fig. 13] A perspective view of the vicinity of the position of the needle.

[Fig. 14] A plan view of the zipper transport mechanism.

[Fig. 15] is a rear view of the zipper transport mechanism.

[Fig. 16] Rear view of the vicinity of the position of the needle.

[Fig. 17] is a plan view showing a state in which the upper cover of the base plate of the support mechanism and the upper cover of the support arm portion are removed.

[Fig. 18] is a schematic view showing an example in which a toothed pulley is used for a transmission mechanism.

[Fig. 19] is a rear view showing a transport mechanism in which an air cylinder that imparts a moving motion to a base plate is connected.

[Fig. 20] A rear view of another example (1) of the zipper transport mechanism.

[21] A right side view of another example (1) of the zipper transport mechanism.

[Fig. 22] is a rear view showing an example in which the conveyance gear is disposed on the upper side of the needle plate in another example (1) of the zipper transport mechanism.

[23] A right side view of an example in which the conveyance gear is disposed on the upper side of the needle plate in another example (1) of the zipper transport mechanism.

[Fig. 24] A rear view of another example (2) of the zipper transport mechanism.

[Fig. 25] Fig. 25 is a plan view of a slide transport mechanism of a sawtooth sewing machine according to a second embodiment of the invention.

[Fig. 26] Rear view of the zipper transport mechanism.

[Fig. 27] A perspective view of a special portion of the zipper transport mechanism.

[Fig. 28] A plan view of a specific portion of the zipper transport mechanism.

[Fig. 29] A plan view of one of the meshing element couplings of the slide fastener product.

[Fig. 30] A plan view of the other engagement element coupling body of the slide fastener product.

[31] Fig. 31 is a block diagram showing a control system of a sewing machine on which a zipper transport mechanism shown in Fig. 25 is mounted.

[Fig. 32] is a front view of the setting input unit.

[Fig. 33] Fig. 33 is an explanatory view showing setting parameters when the meshing element coupling body of the slide fastener of Fig. 29 is sewn.

[Fig. 34] Fig. 34 is an explanatory view showing a needle drop position of the object to be sewn and the engaging element coupling body.

[Fig. 35A] is an explanatory view showing a form No. 1 of a sewing form.

[Fig. 35] Fig. 4 is an explanatory view showing a form No. 2 of a sewing form.

[Fig. 35] C is an explanatory view showing a form No. 3 of a sewing form.

[Fig. 35D] is an explanatory view showing a form No. 4 of a sewing form.

[Fig. 36] A is an explanatory view showing a form No. 5 of a sewing form.

[Fig. 36] Fig. 4 is an explanatory view showing a form No. 6 of a sewing form.

[Fig. 36C] is an explanatory view showing a form No. 7 of the sewing form.

[Fig. 36] D is an explanatory view showing a form No. 8 of a sewing form.

[Fig. 37] is a selection image of the device mode displayed on the display screen of the setting input unit when the setting parameters for the feed meshing element connected body are set.

[Fig. 38] A display image of a display screen of the setting input unit when the setting parameters for the feeding of the engaging element connecting body are set.

Claims (13)

A sewing machine for sewing a meshing element connecting body of a sliding zipper of a meshing element connecting body having a plurality of meshing elements connected by a string body to an edge portion of the object to be sewn, characterized in that: Feeding mechanism, feeding the sewn object; a zipper transport mechanism for transporting the engaging element coupling body; The zipper transport mechanism includes: a transport gear; and a tooth that meshes with the meshing element of the meshing element connecting body; Moving the motor to impart a rotating motion to the carrying gear; The zipper guide guides the engagement element coupling body in the same direction as the feeding direction of the workpiece to be sewn. The sewing machine according to claim 1, wherein the sewing gear that meshes with the engaging element on the upstream side in the feeding direction of the object to be sewn at the needle drop position, and the aforementioned sewing at the needle drop position The downstream side of the feed direction of the object is engaged with the aforementioned conveyance gear of the aforementioned engaging element. The sewing machine according to claim 1 or 2, wherein the zipper guide has a feed groove formed in the needle plate, and the plurality of engaging elements of the engaging element connecting body are along the aforementioned The feeding direction of the sewing material is guided in the same direction. The sewing machine according to any one of claims 1 to 3, further comprising: a zipper puller that prevents the engagement element coupling body conveyed by the conveyance gear from being detached upward. The sewing machine according to any one of claims 1 to 4, wherein the conveyance gear is supported so as to be movable in a direction away from a needle drop position. The sewing machine according to claim 5, wherein the conveyance gear is supported so as to be movable together with the conveyance motor in a direction away from the needle drop position. The sewing machine according to claim 5 or 6, wherein the actuator includes an actuator as a drive source for the movement of the conveyance gear in a direction away from the needle drop position. The sewing machine according to any one of claims 1 to 7, wherein the slit of the lock stitch is formed, and the engaging element connecting body is sewn to an edge portion of the object to be sewn. The sewing machine according to any one of claims 1 to 8, wherein the sewing machine is a sawtooth sewing machine. The sewing machine according to any one of claims 1 to 9, wherein the sewing machine has: The sewing machine motor moves the sewing needle up and down; An encoder that detects an output shaft angle of the aforementioned sewing machine motor; a control device for controlling the aforementioned handling motor; The aforementioned control device is: Each time the needle is dropped, the transport motor is driven at a predetermined timing based on the detection of the encoder, and the meshing element coupling body is moved by the amount of movement in the feeding direction until the next needle drop point. The sewing machine according to claim 10, further comprising: a setting input unit, wherein parameters including a type, a sequence, a number of stitches, and an amount of operation of the sewing are input; The control device controls the feeding mechanism and the slide transport mechanism so as to perform sewing in accordance with the parameters input from the setting input unit. The sewing machine according to claim 10 or 11, wherein the sewing machine has: The oscillating needle motor arbitrarily swings the sewing needle in a direction orthogonal to a conveying direction of the engaging element connecting body; The aforementioned control device is: Each time the needle is dropped, the needle motor is driven at a predetermined timing according to the detection of the encoder, and the needle is tilted up to the amount of the needle until the next needle drop point. The sewing machine according to any one of claims 10 to 12, wherein the feeding mechanism is provided with a feed adjustment motor; The aforementioned control device is: Each time the needle is dropped, the feed adjustment motor is driven at a predetermined timing based on the detection of the encoder, and the amount of movement of the workpiece to be moved in the feed direction up to the next needle drop point is moved.