JP2000313510A - Curve travelling conveyer chain device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make relatively simply performable the work of dismounting a chain main body from guide rails, more easily performable the maintenance work, stably slidable the chain main body on the guide rails, reducible a noise and load at that time, smoothly movable the chain main body, and preventible the chain main body from floating up largely. SOLUTION: Guide rail is formed of a center-, an inside-, and an outside guide rail 30, 31, 32, and a solid rail 1 is formed of a top plate 2 extending over the guide rails 30, 31, 32, and a pair of leg-pieces 10. With the approx. L shaped leg-pieces 10, horizontal parts 12 are mutually extended toward opposite side leg-piece 10, and the distance between the tips of the horizontal parts 12 is set to over the width of the center guide rail 30. The length E of the horizontal parts 12 of the outside leg-pieces 10 is set to below the width of a space part 35 between the guide rails 30, 31 to be formed so that the leg-pieces 10 can pass through the space parts 35, 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly suitable for a chain body made of a synthetic resin chain connected endlessly by a connecting pin to slide on a guide rail having an appropriate curve. Curve traveling conveyor chain device.

[0002]

2. Description of the Related Art Conventionally, as this kind of curve traveling conveyor chain device, for example, guide rails 50,
The top plate 41 of the chain unit 40 is arranged so as to straddle the left and right guide rails 50 and 51, and the top plate 41 is configured to slide on the left and right guide rails 50 and 51. . A pair of leg pieces 42 are continuously provided on the lower surface of the top plate 41, and the pair of leg pieces 42 are formed in a substantially L-shape in which a horizontal portion 44 is continuously provided at a lower end of a vertical portion 43. At the same time, the horizontal portion 44 extends in a direction away from the other leg pieces 42, and the horizontal portion 44 is located below the left and right guide rails 50, 51.
Chain unit 40 for left and right guide rails 50 and 51
Are formed so as not to float greatly (see FIG. 6). By the way, when the chain body moves along the curved portions of the guide rails 50 and 51, the chain body is drawn into the inside of the curve, and the side of the guide rail 45 inside the curve has an inside leg piece. The outer surface of the vertical portion 43 of the 42 comes into sliding contact (see FIG. 7). When the chain body moves along a curved portion, the chain unit 40
Mutually, the outside of the curve of the connecting pin 45 is a part where the traction force is transmitted to the subsequent chain unit 40 (see FIG. 8).

[0003]

However, in the curved conveyor chain device as described above, there is a problem that the chain main body cannot be easily removed from the guide rail at a curved portion or a straight portion. . Therefore, cleaning, maintenance, and the like of the guide rail and the frame supporting the guide rail cannot be performed easily, which is a problem particularly in the aspect of hygiene management that has recently been regarded as important. Also, when the chain body moves along the curve,
Since the inner leg of the chain slides on the side of the guide rail inside the curve, the part where the traction force is transmitted and the part where the leg slides largely separate in the left and right direction, causing vibration in the chain itself In addition, there is also a problem that a frame or the like resonates with the vibration and noise is generated.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, the operation of removing the chain body from the guide rail at the curved portion can be performed relatively easily. The chain body according to claim 1, wherein the chain body can be slid smoothly and stably on the upper part, the lifting of the chain body can be suppressed, and the noise during the movement can be reduced. In the curve traveling conveyor chain device, the chain body formed by connecting the synthetic resin chains 1 endlessly with the connecting pins 25 is configured to slide on a guide rail having an appropriate curve. A conveyor chain apparatus comprising: a guide rail; an inner guide rail 32; an outer guide guide 31; And a central guide rail 30 disposed between the top plate 2 extending over the inner guide rail 32, the central guide rail 30, and the outer guide rail 31. And a pair of leg pieces 10 continuously provided on the lower surface of the top plate 2. The pair of leg pieces 10 is formed in a substantially L shape in which a horizontal portion 12 is continuously provided at a lower end of a vertical portion 11. And the horizontal portions 12 are formed so as to extend from each other toward the other leg pieces 10, and a pair of leg pieces 10
Is set to be equal to or greater than the width D of the center guide rail 30, and the horizontal portion 1 of the leg 10
2 length E to the center and outer guide rails 30, 31
Is set to be equal to or less than the width F of the space portion 35 of the
Is the center guide rail 30 and the outer guide rail 3
1 so that it can pass through the space 35 between the inner guide rail 30 and the space 36 between the center guide rail 30 and the inner guide rail 32. A means for forming such that

The present invention has been made in order to make the chain unit 1 lighter in weight. In the transfer device according to the second aspect, the back of the top plate 2 of the chain unit 1 is provided. The connecting protrusions 5 are disposed on the left and right sides and on the intermediate portion thereof, and the connecting protrusions 5 are provided with connecting pins 25.
Each of the pin insertion holes 8 through which is inserted is formed, and the thickness from the inner peripheral surface of the pin hole 8 to the outer peripheral surface of the connecting convex portion 5 of the connecting convex portion 5 in the intermediate portion is determined by the left and right connecting convex portions. Means for setting the thickness from the inner peripheral surface of the pin hole 8 to the rear outer peripheral surface of the connecting projection 5 from the inner peripheral surface is adopted.

Further, the present invention aims to make it possible to relatively easily pull out the connecting pin 25 from the pin insertion holes 7 and 8 if necessary, and to perform maintenance work on the chain body more easily. In the conveying device according to the third aspect of the present invention, a plurality of connecting protrusions 3 are arranged on the front of the top plate 2 of the chain unit 1, and these connecting protrusions 3 Pin insertion hole 7 through which connecting pin 25 is inserted
Respectively, near the left and right ends of the left and right connecting protrusions 3, crossing the pin hole 7, and the front and upper surfaces of the connecting protrusions 3.
And a notch 1 for mounting the plug such that the lower surface is open.
5 are formed, and a plug 20 made of a synthetic resin which is detachable from above and below is formed in the notch groove 15 for mounting the plug. The plug 20 allows the connecting pin 25 inserted into the pin hole 7 to be pulled out. Means that can be configured to prevent detachment are employed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on illustrated examples. The curved traveling conveyor chain device of the present invention mainly comprises a chain body formed by connecting the synthetic resin chains 1 endlessly by connecting pins 25 so as to be able to curve in a horizontal plane, and A guide rail having an appropriate curve that is slidably supported, so that the chain body can move while sliding on the guide rail. In addition, the transported object is appropriately placed on the top plate 2 of the chain unit 1 and can be transported.

More specifically, a guide rail is formed on one chain body by a guide rail 32 having a curved inside and a guide rail 31 having a curved outside.
And a central guide rail 30 disposed between the inner and outer guide rails 32, 31. Further, the chain unit 1 is connected to the inner rail guide rail 3.
2. A top plate 2 formed so as to straddle a center guide rail 30 and a guide rail 31 of a ridge, and a pair of leg pieces 10 provided on the lower surface of the top plate 2 near the left and right ends.
It consists of The pair of leg pieces 10 is formed in a substantially L-shape in which a horizontal portion 12 is continuously provided at a lower end of a vertical portion 11, and the horizontal portions 12 extend from one another toward the other leg pieces 10. It is formed so that.

Then, the distance C between the tips of the horizontal portions 12 of the pair of leg pieces 10 is set to be equal to or greater than the width D of the central guide rail 30, and the length E of the horizontal portion 12 of the leg pieces 10 of the outer limb is set. ,
The width of the space 35 between the center and outer guide rails 30 and 31 is set to be equal to or less than the width F, and the leg 10 of the outer race is positioned between the center guide rail 30 and the outer guide rail 31. The inner leg piece 10 is formed so as to be able to pass through the space 35 between the center guide rail 30 and the inner guide rail 32. (See FIG. 2). That is, the leg piece 10 has a space 35,
It is configured so that the chain unit 1 (chain body) can be moved above the guide rails by passing through 36 (see FIG. 3).

The chain unit 1 has, for example, four front leg connecting projections 3 protruding forward from the front edge at the front in the traveling direction, and the rear end edge from the rear at the rear in the traveling direction. For example,
The three rear link connecting projections 5 are protruded rearward, and connecting recesses 4 are formed between the front link connecting convex sections 3 to accommodate the rear link connecting convex sections 5 of the other chain unit 1 respectively. A connecting recess 6 is formed between the rear connecting protrusions 5 to accommodate the front connecting connecting portion 3 of the other chain unit 1. In the relationship between the connecting recesses 4 and 6 of the chain unit 1 and the connecting protrusions 5 and 3 of the other chain unit 1 that fits in the connecting recesses 4 and 6, the inner wall surfaces of the connecting recesses 4 and 6 are A vertical surface that is substantially perpendicular to the upper surface of the top plate 2 can be used. In this case,
Dirt, moisture, and the like hardly accumulate in gaps between the inner wall surfaces of the connection recesses 4 and 6 and the front end surfaces of the connection protrusions 5 and 3, thereby providing a more sanitary conveyor chain device.

The connecting projections 5 at the rear are formed with substantially pin-shaped pin insertion holes 8 through which the connecting pins 25 can slightly swing in the horizontal direction. In addition, the connection protrusions 5 extend from the inner peripheral surfaces of the pin holes 8 of the left and right connection protrusions 5.
The thickness from the inner peripheral surface of the pin hole 8 of the central (intermediate portion) connecting protrusion 5 to the outer peripheral surface of the connecting convex portion 5 is set smaller than the thickness of the connecting convex portion 5 at the outer peripheral surface. (See FIG. 5).
In other words, even when a large load is applied during traveling on a curve, the left and right connecting protrusions 5 (particularly, the connecting protrusions 5 outside the curve) can bear this load.
The central (intermediate portion) connecting projection 5 is formed so as to be lighter in weight so that the weight of the chain unit 1 can be further reduced. However, when the number of the connecting projections 5 at the center (intermediate portion) is large, the lightening effect of the entire chain main body becomes large, and the energy saving effect in driving the chain for a long time becomes larger. I have.

[0012] Then, each of the connecting projections 3 of the front gawa is
The same diameter pin insertion holes 7 through which the connection pins 25 are inserted are respectively formed. The left and right connection protrusions 3 cross the pin hole 7 and have a front part and a top part of the connection protrusions 3. , And a notch groove 15 for plug mounting such that the lower surface is opened. On the other hand, a plug 20 made of a synthetic resin that can be mounted in the plug mounting notch groove 15 from above and below is formed, and the plug 20 blocks the pin insertion hole 7 so that the connecting pin inserted into the pin hole 7 is formed. 25 is configured to be prevented from being pulled out (see FIGS. 1 and 5). That is, if necessary, the connecting pin 25 is inserted into the pin insertion holes 7 and 8.
And the chain 1 can be easily separated and connected to each other easily.

The plug 20 has a substantially pressure-plate-shaped base 21 that fits in the notch 15 for mounting the plug.
Protrusions 23 are formed on the left and right side surfaces of the base 1 so as to fit into the pin holes 7 relatively shallowly. The rear end of the base 21 has, for example, a substantially columnar engaging member wider than the base 21. Stop 2
2 are formed. The locking portion 22 is fitted into the locking portion accommodating recess 16 provided at the back end of the plug mounting notch groove 15 so that the plug 20 does not deviate to the front of the plug mounting notch groove 15. With the plug 20
3 does not swing around the fulcrum, and the plug 2
It is provided so that the mounting direction of 0 can be easily recognized.

The connecting pin 25 has a substantially elongated cylindrical shape, and is made of a suitable metal material, a suitable synthetic resin material, or another suitable composite material.

Incidentally, the specific configuration, shape, dimensions, and material of the chain body, the specific configuration, shape,
Dimensions, material, specific configuration, shape, dimensions, material of top plate 2, specific configuration, shape, dimension, number, arrangement position of connection protrusions 3, 5, specific configuration, shape of connection recesses 4, 6 ,Size,
Number, arrangement position, specific configuration and shape of pin insertion holes 7 and 8,
Dimensions, specific configuration, shape, size, material of leg 10, specific configuration, shape, dimensions of vertical portion 11, specific configuration, shape, dimensions of horizontal portion 12, specific configuration of cutout groove 15 for plug mounting , Shape, dimensions, arrangement position, specific configuration, shape, dimensions, arrangement position of the locking portion accommodating recess 16, specific configuration, shape, dimensions, material of the plug 20, specific configuration, shape of the base 21,
Dimensions, specific shapes and dimensions of the locking portions 22, specific configurations, shapes, dimensions, arrangement positions of the protruding portions 23, specific configurations, shapes, dimensions, materials of the connecting pins 25, guide rails 30, 31, and 3
The specific configuration, shape, dimensions, material, arrangement position, specific dimensions of the space portions 35 and 36, and the like of the second embodiment are not limited to the illustrated examples and the like, and can be freely set as appropriate.

[0016]

According to the first aspect of the present invention, the chain main body formed by connecting the synthetic resin chains 1 endlessly with the connecting pins 25 is provided on a guide rail having a curve as appropriate. A conveyor chain device configured to slide a guide rail, an inner guide rail 32, an outer guide rail 31, and a guide rail with respect to a single chain body. And a top plate 2 straddling the chain guide 1, the center guide rail 32, the center guide rail 30, and the outer guide rail 31. A pair of leg pieces 10 are provided on the lower surface of the top plate 2, and the pair of leg pieces 10
1 is formed in a substantially L-shape with a horizontal portion 12 continuously provided at the lower end, and the horizontal portions 12 are formed so as to extend toward the other leg pieces 10. The distance C between the tips of the horizontal portions 12 is set to be equal to or larger than the width D of the central guide rail 30, and the length E of the horizontal portion 12 of the leg piece 10 of the outer limb is set to 31 The width F of the space 35
It is set as follows, and the outer leg piece 10 is a space 35 between the center guide rail 30 and the outer guide rail 31.
And the inner leg piece 1
0 is formed so as to be able to pass through the space 36 between the center guide rail 30 and the inner guide rail 32, so that the leg piece 10 can be connected to the space 35, 36 even in a curved portion or a straight portion. , The chain unit 1 (chain body) can be moved above the guide rail, and the work of removing the chain body from the guide rail can be performed relatively easily. Therefore, cleaning, maintenance, inspection, repair, etc. of the conveyor body device such as the chain body, guide rail, frame, etc. can be performed more easily and frequently in both the curved portion and the straight portion,
It is also an excellent curve traveling conveyor chain device in terms of hygiene management.

When the chain body moves along the curved portion of the guide rail, the top plate 2 straddles the center, outer and inner guide rails 30, 31, and 32.
The chain body can stably slide on the guide rail. Moreover, since the outer leg piece 10 only slides on the outer side surface of the central guide rail 30, noise when the chain body moves can be reduced, and the chain body can be moved smoothly. .

Further, when the chain body moves along the curved portion of the guide rail, the horizontal portion 12 of the outer leg 10 is located below the lower surface of the central guide rail 30 near the outer side surface of the guide rail. The main body can be prevented from rising greatly.

Moreover, when the chain body moves along the curved portion, the vertical portion 11 of the outer leg 10 of the chain unit 1 slides on the outer side of the curve of the central guide rail 30. The contact portion and the portion where the tractive force is transmitted from the chain unit 1 in the forward direction to the chain unit 1 in the forward direction can approach in the left-right direction, and the vibration generated in the chain unit 1 can be suppressed. As a result, noise due to resonance of the frame or the like due to vibration of the chain unit 1 can be reduced.

According to a second aspect of the present invention, there is provided a curve traveling conveyor chain device in which the connecting projections 5 are arranged on the right and left sides of the rear plate of the top plate 2 of the chain unit 1 and the intermediate portion thereof, respectively. 5, a pin insertion hole 8 through which the connecting pin 25 is inserted is formed, and a thickness from the inner peripheral surface of the pin hole 8 of the connecting convex portion 5 at the intermediate portion to the outer peripheral surface of the rear of the connecting convex portion 5. From the inner peripheral surface of the pin hole 8 of the left and right connecting protrusions 5.
Is set to be thinner than the wall thickness to the outer peripheral surface of the left and right connecting projections 5 (especially the connecting projections 5 on the outside of the curve even when a large load is applied during traveling on a curve). ), It is possible to reliably bear this load. Moreover, the connecting projection 5 in the middle part can be formed more lightweight,
The chain unit 1 can be further reduced in weight without any hindrance to the movement of the chain body. As a result, the lightening effect of the entire chain main body is increased, the energy saving effect in driving the chain main body for a long time is greater, and an economically excellent curve traveling conveyor chain device is obtained.

Further, in the curve traveling conveyor chain device according to the third aspect, a plurality of connecting projections 3 are respectively provided on the front slab of the top plate 2 of the chain unit 1 and the connecting projections 3 are connected to the connecting projections 3. The pin insertion holes 7 through which the pins 25 are inserted are respectively formed, and the pin holes 7 are provided near the left and right ends of the left and right connection projections 3.
And a cutout groove 15 for plug mounting is formed so that the front, upper, and lower surfaces of the connecting projection 3 are open. Forming a plug 20 made of synthetic resin that can be removed from the top and bottom,
The plug 20 prevents the connection pin 25 inserted into the pin hole 7 from being pulled out, so that the connection pin 25 can be pulled out of the pin insertion holes 7 and 8 relatively easily as required. Accordingly, maintenance work and the like at the site of the transfer equipment for the chain body can be more easily performed. In addition, there is no possibility that the plug 20 itself will be in the way, the configuration is simple, the durability is excellent, it is hard to break down, it is suitable for mass production, and it can be provided at a relatively low cost.
It will be economical.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a single chain of a curve conveyor chain device of the present invention.

FIG. 2 is a partially exploded front view illustrating the relationship between a chain unit and a guide rail of the curving conveyor chain device of the present invention.

FIG. 3 is a partial front view illustrating the relationship between a chain unit and a guide rail of the curve conveyor chain device of the present invention when moving a curved portion.

FIG. 4 is a partial plan view illustrating a curved conveyor chain device of the present invention.

FIG. 5 is a partially cut-away partial plan view illustrating a state where the chains of the curve traveling conveyor chain device of the present invention are connected to each other.

FIG. 6 is a partial front view illustrating the relationship between a single chain and guide rails of a conventional curve conveyor chain device.

FIG. 7 is a partial front view illustrating the relationship between a single chain of a conventional curve traveling conveyor chain device and a guide rail when moving a curved portion.

FIG. 8 is a partially cut-away partial plan view illustrating a state in which the single chains of a conventional curve traveling conveyor chain device are connected to each other when moving a curved portion.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Single chain 2 Top plate 3 Connecting convex part 4 Connecting concave part 5 Connecting convex part 6 Connecting concave part 7 Pin insertion hole 8 Pin insertion hole 10 Leg piece 11 Vertical part 12 Horizontal part 15 Notch groove for plug mounting 16 Locking part receiving concave part 20 Plug 21 Base 22 Locking portion 23 Protrusion 25 Connecting pin 30 Guide rail 31 Guide rail 32 Guide rail 35 Space 36 Space C C Distance between the tips of the horizontal portions of the pair of leg pieces D Width of the center guide rail E Outside Length of horizontal part of arm leg F Width of center part of guide rail of center and outer leg 40 Chain unit 41 Top plate 42 Leg piece 43 Vertical part 44 Horizontal part 45 Connecting pin 50 Guide rail 51 Guide rail

Claims (3)

[Claims] 1. A conveyor chain device in which a chain body made of synthetic resin chains connected endlessly with connecting pins is configured to slide on a guide rail having an appropriate curve. , The guide rails for one chain body are composed of an inner guide rail, an outer guide rail, and a central guide rail disposed therebetween, and the chain unit is A top plate that straddles the gaw guide rail, the center guide rail, and the outer gaw guide rail, and a pair of leg pieces continuously provided on the lower surface of the top plate, and the pair of leg pieces are A horizontal portion is formed at the lower end of the vertical portion in a substantially L-shape.
The horizontal parts are formed so that they extend toward each other,
The distance between the ends of the horizontal portions of the pair of leg pieces is set to be equal to or greater than the width of the center guide rail, and the length of the horizontal portion of the outer leg pieces is adjusted to the space between the center and the outer guide rail. It is set to be equal to or less than the width, and the outer leg piece is formed so that it can pass through the space between the center guide rail and the outer guide rail, and the inner leg piece is A curved traveling conveyor chain device formed so as to be able to pass through a space between the guide rails of the present invention. 2. A connecting projection is provided on each of the right and left sides of the back plate of the top of the chain and a middle portion thereof, and a pin insertion hole through which a connecting pin is inserted is formed in each of the connecting projections. The thickness from the inner peripheral surface of the pin hole of the connecting convex portion of the intermediate portion to the outer peripheral surface of the connecting convex portion is determined by the thickness of the inner peripheral surface of the pin hole of the right and left connecting convex portions. 2. The curve conveyor chain device according to claim 1, wherein the thickness is set to be smaller than the thickness up to the outer peripheral surface. 3. A plurality of connecting projections are respectively arranged on a front scallop of a top plate of a single chain.
Pin insertion holes through which the connection pins are inserted are respectively formed, and near the right and left ends of the left and right connection protrusions, the pin holes are traversed, and the front, upper, and lower surfaces of the connection protrusions are formed. Each of the notches for plug attachment to be opened is cut out, and on the other hand, a plug made of a synthetic resin that is detachable from the vertical direction is formed in the notch for plug attachment, and the plug is inserted into the pin hole. 3. The curved conveyor chain device according to claim 1, wherein the connecting pin is configured to be able to prevent removal of the connecting pin.