HK1191824A - Slide fastener and slider with simple locking mechanism - Google Patents

Description

Zipper with simple locking mechanism and slider

Technical Field

The present invention relates to a slide fastener capable of stopping a slider at a predetermined position of an element row, and more particularly to a slide fastener having a simple locking mechanism capable of locking a free slider without a stop pawl at a predetermined position of an element row.

Background

Conventionally, a slide fastener is attached to an opening of various kinds of clothes and bags, and the opening is opened and closed by engaging or separating right and left element rows by sliding a slider disposed on the slide fastener. Further, some slide fasteners attached to a front body of clothing are known, in which a separable bottom end stop is disposed so that left and right fastener stringers can be separated after a slider is slid to one end of a element row.

An example of a slide fastener provided with such a separable bottom end stop is disclosed in japanese patent laid-open No. 2009-95425 (patent document 1). For example, as shown in fig. 14, a slide fastener 20 described in patent document 1 is a slide fastener openable from both end portions in the longitudinal direction.

The slide fastener 20 includes left and right first and second fastener stringers 21 each including an element row 24, front and rear first and second sliders 22a, 22b slidable along the element row 24, left and right stoppers arranged on one end side (front end side) of the element row 24, a separable pin 25 fastened to the other end side (rear end side) of the element row 24 in the first fastener stringer 21, and a box pin 26 fastened to the other end side (rear end side) of the element row 24 in the second fastener stringer 21.

The first and second fastener stringers 21 each include a fastener tape 23 having a core portion 23a disposed on a tape side edge and a plurality of fastener elements 24a constituting the element row 24, and the plurality of fastener elements 24a are attached to opposing tape side edge portions of the fastener tape 23 with a predetermined interval therebetween.

The first slider 22a is disposed at the front side of the second slider 22b, and the first and second sliders 22a and 22b are configured as so-called free sliders each including a slider body and a pull-tab rotatably held by the slider body. The slider body has upper and lower wing plates, a guide post connecting one end portions of the upper and lower wing plates, left and right flange portions extending in directions approaching each other from left and right side edge portions of the upper and lower wing plates, and a pull tab attaching post erected in a gate shape on an upper surface of the upper wing plate.

Further, left and right shoulder openings are provided at one end of the slider body so as to sandwich the guide post, and a rear opening is provided at the rear end of the slider body. Further, a substantially Y-shaped tooth guide passage is disposed between the upper and lower wing plates to communicate the left and right shoulder ports with the rear port. In this case, the first and second sliders 22a and 22b are inserted into the element row 24 with their back openings facing each other.

The insert pin 25 of patent document 1 includes a substantially prism-shaped insert pin body 25a fastened to the fastener tape 23, an extension portion 25b extending toward the box pin 26 in an end region on the element row 24 side of the insert pin body 25a, and a protrusion portion 25c protruding forward from a front end portion of the extension portion 25 b.

On the other hand, the box pin 26 includes a box pin body 26a fastened to the fastener tape 23, a hook-shaped stopper portion 26b disposed at a lower end portion of the box pin body 26a, a protruding portion 26c protruding from a side surface of the box pin body 26a facing the insert pin 25 toward the insert pin 25, and a raised portion 26d rising toward a front surface of an upper end portion of the box pin body 26 a.

Since the slide fastener 20 of patent document 1 includes the first and second sliders 22a and 22b arranged so that the back ends face each other, the left and right element rows 24 in the engaged state can be separated not only from one end (front end) but also from the other end (lower end) of the element rows 24.

In particular, in patent document 1, since the rising portion 26d rising from the box pin body 26a is disposed in the box pin 26, when the first and second sliders 22a and 22b are slid to the distal end position (lower end position) on the box pin 26 side and held in the box pin 26, the rising portion 26d of the box pin 26 comes into close contact with the inner surface of the slider body of the first slider 22a, and the frictional force of the first slider 22a against the box pin 26 is increased.

Accordingly, when the first slider 22a is stopped at the predetermined position of the box pin 26, the first slider 22a can be held at the stop position, the relative position of the first slider 22a with respect to the box pin 26 can be stabilized, and the first slider 22a can be prevented from being arbitrarily slid from the state of being held in the box pin 26.

Therefore, for example, when the insert pin 25 is inserted into the first and second sliders 22a and 22b, the insert pin 25 can be smoothly inserted without being caught by the first and second sliders 22a and 22b by preventing the first and second sliders 22a and 22b from being displaced from each other.

However, some conventional slide fasteners have various functions depending on the product to be used (product to which the slide fastener is attached). For example, a slider used for a slide fastener such as a garment is known which includes a stop mechanism capable of holding the slider at a stop position of an element row when the slider is stopped by sliding with respect to the element row.

An example of a slider provided with a stop mechanism is disclosed in, for example, japanese patent application laid-open No. 2009-95370 (patent document 2). The slider described in patent document 2 includes a stopping pawl body disposed so as to be able to enter and exit a tooth guide passage of a slider body, and the stopping pawl body is assembled to the slider body, and is biased by a leaf spring member so that a part (stopping pawl portion) of the stopping pawl body enters the tooth guide passage.

In the slider of patent document 2 having such a stopping pawl, when the pull-tab is operated to slide the slider, the stopping pawl is lifted up against the biasing force of the leaf spring member, and the stopping pawl portion is retreated from the element guide passage, so that the slider can be smoothly slid. On the other hand, when the slider is stopped and the operation of the slider is completed, the stopper pawl body is biased by the leaf spring member, and the stopper pawl portion enters the element guide passage and is locked to the fastener element, so that the slider can be stably held at the stop position.

On the other hand, japanese patent application laid-open No. 2004-41440 (patent document 3) discloses a slide fastener having a function of generating a sound when a slider slides along a element row.

The slide fastener described in patent document 3 includes left and right first and second fastener stringers having element rows, and a slider slidable along the element rows. All the fastener elements constituting the element row have projections arranged on the element upper surfaces, and the projections provided on the respective fastener elements are configured so as not to disturb sliding of the slider or damage a human body. Further, a sound generation chamber having a pawl portion that generates a sound when coming into contact with a projection provided on the fastener element is disposed in the slider.

In the slide fastener of patent document 3 having such a configuration, when the slider is slid along the element row, the pawl portion of the slider abuts against the projection of the fastener element and is thereby sprung, and a sound can be generated in the sound emission chamber of the slider. Accordingly, for example, by attaching the slide fastener of patent document 3 to the opening of the bag, a sound can be generated every time the opening is opened and closed, and therefore, attention is paid to theft and theft, and crime prevention is improved.

Prior art documents

Patent document

Patent document 1: japanese laid-open patent publication No. 2009-95425

Patent document 2: japanese laid-open patent publication No. 2009-95370

Patent document 3: japanese patent laid-open publication No. 2004-41440

For example, when a slide fastener is used for clothing or the like, there is a case where it is desired to stop a slider for opening and closing element rows at a desired position of the element rows and to hold the stop position of the slider. However, in the slide fastener 20 described in patent document 1, since the free sliders having no stopping mechanism such as a stopping pawl are used as the first and second sliders 22a and 22b, the first and second sliders 22a and 22b cannot be stopped at a desired position of the element row 24 basically.

Even when the first and second sliders 22a and 22b stop at the intermediate position of the element row 24 and the slide fastener 20 receives vibration or the like, the weight of each slider easily drops along the element row 24, and the slide fastener 20 may be opened and closed at will contrary to the user's intention. Further, when the left and right fastener stringers 21 are pulled apart, the slider is subjected to stress (lateral pulling force) from the fastener element 24a via the left and right flange portions, and therefore, the slider may slide contrary to the user's intention.

In addition, the slide fastener described in patent document 3 can generate a sound when the slider slides by using the protrusions arranged on the fastener elements. However, in the slide fastener of patent document 3, since the protrusions are provided on the element upper surfaces of all the fastener elements, there is a problem that the sliding resistance when the slider slides along the element rows increases, and the operability of the slider decreases.

On the other hand, since the slider of patent document 2 includes the stop mechanism based on the stop pawl body which can be locked to the fastener element as described above, for example, by using the slider of patent document 2 as the first and second sliders in patent document 1, the slider can be stopped at a desired position of the element row.

However, in the case of a slider having such a stopping pawl body, it is practically impossible for a user to pull the fastener stringer to open the fastener stringer while maintaining the state in which the stopping pawl portion of the stopping pawl body is locked to the fastener element. Further, if the slider is forcibly slid by any biasing force, such as a case where the slider is momentarily strongly pulled in a direction in which the left and right first and second fastener stringers are separated from each other, the locking pawl and the fastener element are easily broken, which is one of the factors causing a failure of the slide fastener.

The present invention has been made in view of the above conventional problems, and a specific object thereof is to provide a slide fastener which can stop a slider at an arbitrary position with respect to a fastener element row and can be opened without causing damage to the slider, fastener elements, and the like by applying a force in a direction in which left and right fastener stringers are separated from each other when the slide fastener is to be opened quickly as intended by a user, and a slider using the slide fastener.

Disclosure of Invention

In order to achieve the above object, a slide fastener according to the present invention is a slide fastener having a pair of left and right first and second fastener stringers in which element rows are arranged on opposing tape side edge portions of first and second fastener tapes, and a slider slidable along the element rows, the element rows being formed of a plurality of fastener elements attached to the tape side edge portions at predetermined intervals, the slider having upper and lower wing plates, a guide post connecting the upper and lower wing plates, and a flange portion arranged on left and right side edge portions of at least one of the upper and lower wing plates, and is characterized in that at least one stopping element having a resistance portion which is brought into contact with an inner surface of the slider when the slider is slid so as to increase sliding resistance and stop the slider.

In the slide fastener according to the present invention, it is preferable that the resistance portion is configured such that a dimension of the stopper element in the tape normal-reverse direction is larger than a gap between the upper and lower wing plates of the slider.

In this case, it is particularly preferable that the resistance portion includes at least one protrusion protruding toward at least one of the first surface and the second surface of the stop tooth in the forward and backward directions.

In the slide fastener according to the present invention, it is preferable that the stop element has a portion having the largest dimension in the tape front-back direction, and the portion is disposed in the core portion of the first or second fastener tape.

In the slide fastener of the present invention, it is preferable that a tape groove through which the first and second fastener tapes are inserted is disposed in left and right side edge portions of the slider, the stopper element has a ridge portion through which the tape groove of the slider is inserted, and the resistance portion is configured such that a dimension of the ridge portion in the tape normal and reverse direction is larger than a width of the tape groove.

In the slide fastener according to the present invention, it is preferable that the stopper element has a protruding portion protruding in the tape width direction on a wall surface on the inner side of the tape, and the resistance portion is configured such that a chain width when the left and right element rows are engaged with each other is set to be larger than a minimum distance between the left and right flange portions of the slider.

In the present invention, it is preferable that at least one of the stopper element and the slider is configured to be elastically deformable in the tape front-back direction or the tape width direction.

Preferably, the resistance portion has an inclined surface inclined in the belt longitudinal direction or a curved surface curved in the belt longitudinal direction.

In the present invention, it is preferable that the stop teeth are arranged in the element rows in a row in the longitudinal direction of the belt.

Further, it is preferable that the stop element is disposed in the element row of one or both of the first and second fastener stringers.

In the present invention, it is preferable that the stop tooth is disposed in a region from an opening-side end of the element row to within 20% of a length of the entire element row. Preferably, a separable bottom end stop is disposed on the first fastener stringer and the second fastener stringer, and the stop element is disposed on the element row on the side of the box pin on which the separable bottom end stop is disposed.

In the slide fastener according to the present invention, it is preferable that the slider includes a locking portion which is integrally provided on at least one of the upper and lower wing plates, and which interferes with the stop element to maintain a stopped state of the slider, and the locking portion is configured to be elastically deformable in the tape front-back direction.

In this case, it is preferable that the locking portion has a convex portion protruding inward in the tape front-back direction from the main inner wall surface of the upper blade or the main inner wall surface of the lower blade, and it is particularly preferable that a pair of slits cut from the end portion on the back edge side or the end portion on the shoulder edge side is provided in at least one of the upper and lower blades, and the convex portion is provided at the tip of the elastic piece portion sandwiched between the slits.

In the present invention, it is preferable that a recessed portion that avoids interference with the resistance portion be disposed in at least one of the upper and lower blades.

Next, a slider according to the present invention is a slider for a slide fastener having upper and lower wing plates, a coupling post for coupling the upper and lower wing plates, and flange portions disposed on left and right side edges of at least one of the upper and lower wing plates, and is characterized in that the slider includes a locking portion provided integrally with at least one of the upper and lower wing plates, the locking portion interfering with a fastener element of the slide fastener to maintain a stopped state of the slider, and the locking portion is configured to be elastically deformable in a forward and backward direction.

In the slider of the present invention, it is preferable that the locking portion has a protrusion protruding inward in the vertical direction from a main inner wall surface of the upper blade or a main inner wall surface of the lower blade, and it is particularly preferable that a pair of slits cut from a back edge or a shoulder edge are provided in at least one of the upper and lower blades, and the protrusion is provided at a tip of the elastic piece portion sandwiched between the slits.

In the present invention, it is preferable that a recessed portion that avoids interference with the fastener element of the slide fastener is disposed on at least one of the upper and lower wing plates.

Effects of the invention

In the slide fastener according to the present invention, the stopper element having the resistance portion that is brought into contact with the inner surface of the slider when the slider is slid and increases the sliding resistance is disposed on at least one of the fastener elements constituting the element row, and the slider can be stopped (lockable). In particular, in the present invention, the stop element is partially disposed at a position of the element row where the slider is to be stopped.

According to the slide fastener of the present invention having the simple locking mechanism based on the stopping element, even if the slider does not have the stopping pawl body as in patent document 2, for example, the slider can be easily stopped at an arbitrary position where the stopping element of the element row is disposed by utilizing the sliding resistance between the slider and the stopping element, and the stopped state of the slider can be maintained.

Therefore, for example, when the slide fastener of the present invention is attached to a front body of a garment or the like, the stop position of the slider can be easily held by the stop element of the element row, and therefore, even if the slide fastener is subjected to vibration, the slider can be prevented from moving in the element row by its own weight. Thus, the zipper can be prevented from being opened and closed randomly according to the user's intention.

In addition, the stop state of the slider is maintained by a large sliding resistance between the inner surface of the slider and the fastener elements. Therefore, for example, by operating the slider with an appropriate force larger than the sliding resistance with the stopping element in order to separate the left and right first and second fastener stringers, the slider passes over the resistance portion of the stopping element, and therefore, the slider can be slid along the element row. Further, for example, by applying a force in a direction in which the left and right fastener stringers are separated from each other to slide the slider as intended by the user, the slider can also slide over the resistance portion of the stop element.

Therefore, in the present invention, as in patent document 2, for example, in a state where a part of the slider is locked to the fastener element, the slider is not forcibly slid, and therefore, the slider, the fastener element, and the like are less likely to be damaged, and as a result, it is possible to prevent a failure of the slide fastener and to extend the product life of the slide fastener.

In particular, in the present invention, since the stopping element can be provided locally at an arbitrary position of the element row, the stopping element is disposed only at a desired position of the element row at which the slider is to be stopped, and the slider can be stopped effectively. In the present invention, the inner surface of the slider that contacts the stopper element means the inner wall surfaces of the upper and lower blades, the inner wall surface of the flange portion, and the projecting surface (tip surface) of the flange portion in the slider.

In the slide fastener of the present invention, the resistance portion is configured such that the dimension of the stopping element in the tape normal-reverse direction is larger than the interval between the upper and lower wing plates of the slider, and in particular, includes at least one protrusion portion arranged to protrude toward the first surface (upper surface), the second surface (lower surface) or both the first surface and the second surface of the stopping element in the tape normal-reverse direction.

Accordingly, when the stop element is inserted into the element guide passage of the slider, the resistance portion of the stop element can be surely brought into contact with at least one of the upper and lower wing plates of the slider, thereby increasing the sliding resistance of the slider. Further, it is preferable that a plurality of the raised portions be provided for one stop tooth. If one of the stop elements has a plurality of ridge portions, the sliding resistance of the slider can be stably increased by the stop element.

In the slide fastener according to the present invention, the stop element is disposed at the core portion of the first or second fastener tape at a portion having the largest dimension in the tape front-back direction. Accordingly, for example, when the slider is slid with an appropriate force, the slider can easily get over the resistance portion of the stop element by flexing the core portion of the fastener tape, and the stop element can pass through the element guide passage of the slider.

In the slide fastener of the present invention, the tape grooves into which the first and second fastener tapes are inserted are disposed on the left and right side edges of the slider, and the stop element has a ridge portion into which the tape grooves of the slider are inserted. The resistance portion is configured such that the dimension of the ridge portion of the fastener element in the tape front-back direction is larger than the groove width of the groove of the slider. Accordingly, when the stop element is inserted into the element guide passage of the slider, the resistance portion of the stop element can be reliably brought into contact with the flange portion disposed on the slider, and the sliding resistance of the slider can be increased.

In the slide fastener of the present invention, the stop element has a projecting portion projecting in the tape width direction on the wall surface on the tape inner side, and the resistance portion of the stop element is configured such that the projecting dimension of the projecting portion is set such that the chain width of the left and right element rows is larger than the minimum interval between the left and right flange portions of the slider. Accordingly, even when the stop element is inserted into the element guide passage of the slider, the resistance portion of the stop element can be reliably brought into contact with the flange portion disposed on the slider, and the sliding resistance of the slider can be increased.

In the present invention, the chain width of the element row means a dimension in the tape width direction between a position of a left side end edge of the left fastener element and a position of a right side end edge of the right fastener element in a state where the left and right element rows are engaged with each other.

In the slide fastener of the present invention, at least one of the stopper element and the slider is configured to be elastically deformable in the tape front-back direction or the tape width direction. Accordingly, for example, when the slider is slid with an appropriate force, at least one of the stop element and the slider can be bent, and therefore the stop element can pass through the element guide passage of the slider.

In the present invention, the resistance portion has an inclined surface inclined in the belt longitudinal direction or a curved surface curved in the belt longitudinal direction. Accordingly, when the stop teeth are caused to pass through the teeth guide passage of the slider, the upper and lower wing plates of the slider are guided by the inclined surface or the curved surface, and the slider can be assisted in passing over the resistance portion of the stop teeth.

In the present invention, the stop teeth are arranged in the tooth row in the longitudinal direction of the belt in two or more consecutive rows. Accordingly, the slider can be more effectively stopped by two or more stop elements arranged adjacently, and the stopped state can be stably maintained.

In the present invention, when the stopping element is disposed on one element row of the first and second fastener stringers or on both element rows, the slider can be stopped by the stopping element.

In the present invention, the separable bottom end stop is disposed on the first fastener stringer and the second fastener stringer, and the stop is disposed on the element row on the side of the box pin on which the separable bottom end stop is disposed. Accordingly, even when a process such as washing is performed in a state where the first and second fastener stringers are separated from each other, for example, the slider can be effectively prevented from sliding on the element row on the box pin side by the stopper element.

In the slide fastener of the present invention, the stop element is disposed in a region from an opening-side end of the element row to within 20% of a length dimension of the entire element row. Accordingly, for example, when the slide fastener of the present invention is attached to a front body of a garment, the stopper element can be effectively disposed in a region of the garment where the occurrence rate of stopping the slider is high, and the slider can be stably stopped in the region. The opening side end of the element row is a slider sliding end in a direction in which the slider slides to close the slide fastener.

Further, in the slide fastener according to the present invention, the slider includes a locking portion which is integrally provided on at least one of the upper and lower wing plates, and which is configured to interfere with the stop element to maintain a stopped state of the slider, and the locking portion is configured to be elastically deformable in the tape normal and reverse directions.

By disposing such a locking portion on the slider, the sliding resistance between the stopping element and the locking portion of the slider can be further increased, and the slider can be more effectively stopped at the position where the stopping element is disposed, and the stopped state can be more stably maintained. Further, since the locking portion is configured to be elastically deformable in the tape front-back direction, for example, when the slider is slid with an appropriate force, the locking portion can be flexed, and therefore, the slider can be slid over the stop element.

In this case, the locking portion has a convex portion protruding inward in the tape front-back direction from the main inner wall surface of the upper blade or the main inner wall surface of the lower blade. This makes it possible to more reliably bring the lock portion into contact with the resistance portion of the stop tooth. In particular, by disposing a pair of slits cut from the end portion on the rear opening side or the end portion on the shoulder opening side in at least one of the upper and lower wing plates, and disposing the convex portion at the tip end of the elastic piece portion sandwiched between the slits, the locking portion can be configured to be reliably elastically deformed in the forward and backward directions with a simple structure.

In the present invention, the recessed portion that avoids interference with the resistance portion is disposed on at least one of the upper and lower blades. Accordingly, since the portion of the slider other than the locking portion can be prevented from excessively contacting the resistance portion of the stopping element, an increase in the sliding resistance between the inner surface of the slider and the resistance portion of the stopping element can be suppressed. Therefore, the slider cannot pass over the resistance portion of the stop element, and the wear of the slider and the stop element can be suppressed, thereby extending the product life of the slide fastener.

The slide fastener provided by the present invention has a locking portion which is integrally provided on at least one of the upper and lower wing plates, interferes with the fastener element, and maintains a stop state of the slider, and the locking portion is configured to be elastically deformable in the tape forward and backward directions.

By disposing such a locking portion on the slider, the locking portion of the slider can be brought into contact with a fastener element (e.g., a stopper element) when the slider slides, and sliding resistance can be increased. Accordingly, the slider can be effectively stopped at the position where the fastener element with which the locking portion is in contact is disposed, and the stopped state can be maintained more stably.

Further, since the locking portion is configured to be elastically deformable in the tape front-back direction, the locking portion can be flexed when the slider is slid with an appropriate force, for example. Thus, even if the locking portion comes into contact with the fastener element, the locking portion can pass over the fastener element, and the slider can be slid along the element row.

In the slider of the present invention, the locking portion has a protrusion protruding inward in the vertical direction from a main inner wall surface of the upper blade or a main inner wall surface of the lower blade. Accordingly, the lock portion can be more reliably brought into contact with the fastener element. In particular, by disposing a pair of slits cut from the end portion on the back opening side or the shoulder opening side in at least one of the upper and lower wing plates and disposing the convex portion at the tip end of the elastic piece portion sandwiched between the slits, the locking portion can be configured to be elastically deformed reliably in the forward and backward directions with a simple structure.

In the slider of the present invention, the recessed portion that avoids interference with the fastener elements of the slide fastener is disposed on at least one of the upper and lower wing plates. Accordingly, since the portion of the slider other than the locking portion can be prevented from excessively contacting the fastener element, an increase in sliding resistance between the inner surface of the slider and the fastener element can be suppressed. Therefore, the slider can be prevented from being unable to slide, and the wear of the slider and the fastener elements can be suppressed, thereby extending the product life of the slide fastener.

Drawings

Fig. 1 is a front view showing a slide fastener according to embodiment 1 of the present invention.

Fig. 2 is a perspective view showing a stop element disposed on the slide fastener.

Fig. 3 is a cross-sectional view showing a relationship between a stopper element and a slider in the slide fastener.

Fig. 4 (a) to 4 (m) are perspective views showing modified examples of the stop teeth.

Fig. 5 is an explanatory view for explaining a relationship between the stopper element and the slider according to the modification.

Fig. 6 (a) to 6 (d) are front views showing the arrangement of the stop teeth according to the modified example.

Fig. 7 is a front view showing a slider according to a modification.

Fig. 8 is a cross-sectional view taken along line VIII-VIII shown in fig. 7.

Fig. 9 is a cross-sectional view showing a state in which a locking portion of the slider is elastically deformed.

Fig. 10 is a front view showing a slider according to another modification.

Fig. 11 is a sectional view taken along line XI-XI in fig. 10.

Fig. 12 is a front view showing a slider according to another modification.

FIG. 13 is a cross-sectional view taken along line XIII-XIII shown in FIG. 12.

Fig. 14 is a front view showing a conventional slide fastener.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings by way of examples.

Example 1

Fig. 1 is a front view showing a slide fastener according to example 1, and fig. 2 is a perspective view showing stop teeth arranged on the slide fastener. Fig. 3 is a cross-sectional view showing a relationship between the stop element and the slider in the slide fastener.

In the following description, the front-back direction refers to the longitudinal direction of the fastener tape in the slide fastener, and in particular, the direction in which the slider slides toward the stopper to engage the left and right element rows is defined as the front, and the direction in which the slider slides toward the separable bottom end stop to separate the left and right element rows is defined as the back.

The left-right direction refers to the tape width direction of the fastener tape, and as shown in fig. 1, the left side and the right side when the fastener is viewed from the front side are the left side and the right side, respectively. The vertical direction is a tape normal and reverse direction perpendicular to a tape surface of the fastener tape, and a side of the tape surface of the fastener tape on which a pull tab of the slider is disposed is referred to as an upper side and an opposite side thereof is referred to as a lower side.

The slide fastener 1 according to the present embodiment includes a pair of right and left fastener stringers 10 having element rows 12 on opposing tape side edge portions of a fastener tape 11, a slider 30 disposed slidably along the element rows 12, a separable bottom end stop 40 disposed at a rear end portion of the fastener stringer 10, and a stopper, not shown, continuously fastened to the tape side edge portions of the first and second fastener tapes 11 from an upper end of the element rows 12.

In this case, the fastener stringer 10 and the fastener tape 11 disposed on the left side constitute a first fastener stringer and a first fastener tape of the present invention, and the fastener stringer 10 and the fastener tape 11 disposed on the right side constitute a second fastener stringer and a second fastener tape of the present invention.

The left and right fastener stringers 10 in embodiment 1 each include a fastener tape 11 and a plurality of fastener elements 13 made of synthetic resin disposed at tape side edge portions. The left and right fastener tapes 11 are woven or knitted into a narrow band shape, and include a tape main body portion 11a sewn to a product to which the fastener is to be attached (e.g., clothing), and an element attaching portion 11b (tape side edge portion) to which the fastener element 13 is attached. Further, a core portion 17 is disposed at a tape side end edge of the fastener tape 11 on the element attachment portion 11b side.

In the right and left fastener tapes 11, a plurality of fastener elements 13 are arranged in a row at a predetermined interval in the tape longitudinal direction by injection molding at an element attaching portion 11b including a core thread portion 17, and an element row 12 is constituted by the plurality of fastener elements 13. Further, a synthetic resin reinforcing film 18 is bonded to the front and back surfaces of the lower end portions of the left and right fastener tapes 11.

In the present invention, the material of the fastener element 13 is not limited, and for example, synthetic resin such as polyoxymethylene, polypropylene, polybutylene terephthalate, nylon, polycarbonate, or the like, or metal such as copper alloy may be used. In embodiment 1, the fastener element 13 is formed to be elastically deformable, particularly in the vertical direction, by injection molding synthetic resin into a predetermined shape.

The fastener element 13 constituting the element row 12 of example 1 includes a conventional normal element 14 having a general form and a stopper element 15 having a resistance portion for increasing the sliding resistance of the slider 30. In this case, 3 stop teeth 15 are continuously arranged on each of the left and right element rows 12, and the normal teeth 14 are arranged so as to sandwich the stop teeth 15 in the longitudinal direction.

In particular, the three stopping teeth 15 arranged on the left-hand element row 12 and the three stopping teeth 15 arranged on the right-hand element row 12 are arranged at corresponding positions in the longitudinal direction of the tape so as to be capable of meshing with each other, and these stopping teeth 15 are arranged at positions close to the separable bottom end stop 40 in the longitudinal direction of the element row 12.

The normal element 14 includes a base portion fastened to the element attachment portion 11b of the fastener tape 11, a neck portion extending outward from the base portion and having a shape that is narrow in the tape longitudinal direction, a coupling head portion arranged on the distal end side of the neck portion and having a substantially oblong shape, and a shoulder portion extending in the front-rear direction from the neck portion at a substantially central portion in the up-down direction, and is configured such that when the left and right element rows 12 are coupled, the coupling head portion of one fastener element 13 to be coupled is engaged between the neck portions of the adjacent fastener elements 13.

Further, a ridge portion extending from the base portion to the inside of the tape may be provided on the common element 14 to improve fastening strength with respect to the fastener tape 11. In the case where the ridge portion is provided, the maximum value of the thickness dimension of the ridge portion in the vertical direction is set smaller than the groove width of a later-described groove 39 of the slider 30.

In embodiment 1, the maximum value of the vertical thickness dimension of the normal element 14 from the upper surface to the lower surface is set smaller than the interval (particularly, the minimum value of the interval) between the inner wall surfaces of the upper and lower blades 33 and 34 of the slider 30, which will be described later. Accordingly, when the normal element 14 passes through the element guide passage 38 of the slider 30, the normal element 14 is prevented from being caught by the slider 30, and the sliding resistance generated when the slider 30 slides is suppressed to be small.

On the other hand, the stopping teeth 15 are configured in such a manner that the raised portions 15e serving as resistance portions are provided on the upper surface and the lower surface of the aforementioned normal teeth 14, and any one of the stopping teeth 15 has the same shape. Specifically, as shown in fig. 2, the stop element 15 includes a base portion 15a fastened to the element attachment portion 11b of the fastener tape 11, a neck portion 15b extending outward from the base portion 15a and having a shape narrowed toward the outside in the tape longitudinal direction, an engagement head portion 15c arranged on the tip end side of the neck portion 15b and having a substantially oblong shape, a shoulder portion 15d extending from the neck portion 15b in the front-rear direction at a substantially central portion in the vertical direction, and a raised portion (resistance portion) 15e raised from the upper surface and the lower surface of the base portion 15 a.

In this case, the respective upper and lower ridge portions 15e are provided at substantially central portions in the front-rear direction and the left-right direction of the base portion 15a, and the respective ridge portions 15e are arranged on the core portion 17 of the fastener tape 11 when the slide fastener 1 is viewed from the front surface side or the back surface side.

The central region of the raised portion 15e is disposed substantially parallel to the tape surface of the fastener tape 11, and the outer surfaces from the peripheral edge of the central region of the raised portion 15e to the front and rear end edges and the left and right end edges of the raised portion 15e (i.e., the boundary portions between the raised portion 15e and the base portion 15 a) are formed as curved surfaces that are curved such that the vertical thickness dimension of the raised portion 15e gradually decreases toward each end edge.

By disposing such curved surfaces in the ridge portion 15e, for example, when the stopping element 15 is passed through the element guide passage 38 of the slider 30, the upper and lower wing plates 33, 34 of the slider 30 are guided by the curved surfaces, and the slider 30 can be assisted in passing over the ridge portion 15e of the stopping element 15. Further, by curving the peripheral surface of the raised portion 15e, the appearance of the stop element 15 becomes good, and the appearance quality of the slide fastener 1 improves.

In the stopper 15, the maximum value of the thickness dimension of the stopper 15 in the vertical direction from the ridge portion 15e disposed on the upper surface side of the base portion 15a to the ridge portion 15e disposed on the lower surface side of the base portion 15a is set to be slightly larger than the interval (particularly, the minimum value of the interval) between the inner wall surfaces of the upper and lower wing plates 33 and 34 of the slider 30, which will be described later.

Accordingly, when the stopping element 15 enters the element guide passage 38 of the slider 30, the upper and lower ridge portions (resistance portions) 15e of the stopping element 15 are reliably brought into contact with the upper and lower wing plates 33, 34 of the slider 30, and the sliding resistance of the slider 30 can be greatly increased as compared with the sliding resistance when the normal element 14 enters the element guide passage 38 of the slider 30.

In the present invention, the stopping element 15 is a member configured to increase the sliding resistance of the slider 30 by the resistance portion, and the ridge portion is not included in the resistance portion in the following cases: for example, although the ridge portions are disposed on the upper and lower surfaces of the base portion of the fastener element, the maximum value of the thickness dimension of the fastener element in the vertical direction from the ridge portion on the upper surface side to the ridge portion on the lower surface side is set smaller than the interval between the inner wall surfaces of the upper and lower wing plates 33, 34 of the slider 30, and the sliding resistance of the slider 30 cannot be increased by the ridge portions.

The stop element 15 of embodiment 1 is configured in such a manner that the upper and lower raised portions 15e as shown in fig. 2 are formed integrally by injection molding synthetic resin on the element attachment portion 11b of the fastener tape 11 as described above.

However, in the present invention, the stop tooth 15 may be formed by providing the ridge portion 15e at the base portion of the normal tooth 14 after the normal tooth is formed. In this case, the base portion 15a and the ridge portion 15e of the stop tooth 15 may be made of the same material or different materials. The raised portion 15e of the stop tooth 15 may be provided only on one of the upper surface and the lower surface of the base portion 15 a.

The slider 30 of embodiment 1 has substantially the same structure as a so-called free slider which has been conventionally used in general.

Specifically, the slider 30 includes a slider body 31 and a pull tab 32 rotatably held by the slider body 31. The slider body 31 includes upper and lower wing plates 33, 34, a guide post 35 connecting front end portions of the upper and lower wing plates 33, 34, left and right flange portions 36 extending in directions approaching each other from left and right side edges of the upper and lower wing plates 33, 34, and a pull tab attaching post 37 erected in a gate shape on an upper surface of the upper wing plate 33.

Left and right shoulder openings are formed at the front end of the slider body 31 with the guide posts 35 interposed therebetween, and a rear opening is formed at the rear end of the slider body 31. Further, a substantially Y-shaped tooth guide passage 38 is formed between the upper and lower blades 33, 34 to communicate the left and right shoulder openings and the rear opening. Further, a tape groove 39 through which the right and left fastener tapes 11 can be inserted is formed between the right and left upper flange portions 36 suspended from the upper wing plate 33 and the right and left lower flange portions 36 standing from the lower wing plate 34.

In the present invention, the material of the slider 30 is not particularly limited, and for example, synthetic resin such as polyamide, polypropylene, polyoxymethylene, etc., metal such as aluminum alloy, zinc alloy, etc., can be used. In embodiment 1, the slider body 31 of the slider 30 is molded from a synthetic resin, and at least the upper and lower wing plates 33 and 34 are configured to be elastically deformable in the vertical direction from the guide post 35.

The separable bottom end stop and the separable bottom end stop 40 of the present embodiment 1 have substantially the same structures as those of the conventional separable bottom end stop and separable bottom end stop.

That is, the separable bottom end stop 40 includes a separable bottom end stop 41 continuously fastened to the fastener tape 11 from the rear end of the left element row 12, a box pin 42 continuously fastened to the fastener tape 11 from the rear end of the right element row 12, and a retainer 43 integrally formed at the rear end of the box pin 42, and the separable bottom end stop 41 is configured to be insertable into and removable from the retainer 43. In order to prevent the slider 30 from falling off from the front ends of the element rows 12, stoppers are continuously fastened to the left and right fastener tapes 11 from the front ends of the left and right element rows 12.

In the present invention, the structures of the separable bottom end stop 40 and the stopper are not particularly limited, and can be arbitrarily changed. For example, instead of the separable bottom end stop 40 of example 1, a separable bottom end stop provided with two sliders, a box pin, and a box pin and capable of separating the left and right element rows from both end portions in the longitudinal direction may be provided as described in patent document 1. Further, as the stopper of embodiment 1, for example, a stopper having a holding portion capable of holding the slider 30 at a position of the stopper may be provided.

The slide fastener 1 of embodiment 1 having the above-described configuration can be easily opened and closed with the left and right element rows 12 by operating the slider 30 with an appropriate force larger than the sliding resistance generated between the stopping elements 15, for example, to smoothly slide the slider 30 along the element rows 12.

In particular, in the case of embodiment 1, the stopper element 15 and the slider body 31 of the slider 30 are configured to be elastically deformable as described above. Therefore, when the slider 30 is operated with an appropriate force to cause the stopping element 15 to enter the element guide passage 38 of the slider 30 and the ridge portion 15e of the stopping element 15 comes into contact with the inner surface of the slider 30, at least one of the stopping element 15 and the slider body 31 can be bent.

Accordingly, the difference in the thickness dimension from the ridge portion 15e disposed on the upper surface side of the stopping element 15 to the ridge portion 15e disposed on the lower surface side and the dimension between the inner wall surfaces of the upper and lower wing plates 33, 34 of the slider 30 can be absorbed by the flexure of the stopping element 15 and/or the slider body 31, and thus the stopping element 15 can be inserted through the element guide passage 38 of the slider 30 (in other words, the slider 30 can pass over the stopping element 15).

In the present invention, at least one of the stop element 15 and the slider 30 may be configured to be elastically deformable so as to allow the slider 30 to pass over the stop element 15, but since both the stop element 15 and the slider 30 are configured to be elastically deformable, the amount of elastic deformation of each of the stop element 15 and the slider 30 can be reduced, and therefore, deterioration of these components is suppressed, and the product life of the slide fastener 1 is extended.

At this time, in example 1, since the ridge portion 15e of the stopping element 15 is disposed on the core thread portion 17 of the fastener tape 11, when the ridge portion 15e of the stopping element 15 comes into contact with the inner surface of the slider 30 by also utilizing the deflection of the core thread portion 17, it is possible to suppress the abrasion of the stopping element 15 and the slider 30 and to make the slider 30 get over the stopping element 15.

On the other hand, when the slider 30 is stopped at the position where the stopping element 15 is disposed in the element row 12, as shown in fig. 3, the inner wall surfaces of the upper and lower blades 33 and 34 of the slider 30 and the ridge portion 15e of the stopping element 15 are brought into contact with each other, and a large sliding resistance (friction) is generated between the slider 30 and the stopping element 15, whereby locking can be performed. Therefore, the slider 30 can be easily kept in the stopped state by utilizing the generated sliding resistance.

Further, for example, when the slider 30 is stopped at a position where the element row 12 of the normal element 14 is arranged, since resistance is hard to be generated between the normal element 14 and the slider 30, the slider 30 may move along the element row 12 by its own weight when receiving vibration or the like. However, in this case, in the slide fastener 1 of embodiment 1, the slider 30 can be stopped at the position of the stopping element 15 by the sliding resistance generated between the slider 30 and the stopping element 15 with respect to the slider 30 moving by its own weight. Accordingly, it is possible to prevent the occurrence of a problem that the slide fastener 1 is not opened or closed arbitrarily as intended by the user.

On the other hand, when the slider 30 is slid from the state of being held by the stopping element 15, the slider 30 is operated with a force larger than the sliding resistance generated between the stopping element 15, or a force is applied in a direction of separating the left and right fastener stringers to give a force larger than the sliding resistance generated between the stopping elements 15 to the slider 30. Accordingly, the slider 30 can smoothly slide along the element row 12 over the resistance portion of the stopper element 15 without damaging the slider 30, the fastener element 13, and the like.

The slide fastener 1 according to the present invention is not limited to the embodiment of example 1 as described above, and various modifications can be made as long as the slide fastener has substantially the same configuration as the present invention in which at least one stopping element for the resistance portion of the slider is disposed in the element row and the same operational effects are exhibited.

For example, although the element row 12 of the slide fastener 1 according to the above-described embodiment 1 is constituted by the plurality of independent fastener elements 13 injection-molded on the fastener tape 11, in the present invention, the element row may be constituted by continuous fastener elements in which a monofilament is molded into a coil shape or a zigzag shape.

The stop teeth are not limited to those having the form shown in fig. 2, and the form, number, and the like of the resistance portions may be changed arbitrarily, and may be configured in other forms as shown in fig. 4 (a) to 4 (m), for example. The form of each stop tooth shown in fig. 4 (a) to 4 (m) will be briefly described below. These stopper teeth are formed by injection molding of a synthetic resin, as in example 1.

The stopper teeth 51 shown in fig. 4a are formed by arranging four protrusions (resistance portions) 51e on the upper and lower surfaces of the base portion 51 a. The stop teeth 51 are configured in the same manner as the stop teeth 51 of example 1, except for the ridge portions 51 e. That is, the stop element 51 in fig. 4 (a) has a form in which four raised portions 51e are provided on the upper surface and the lower surface of the normal element 14 in example 1, and these raised portions 51e are provided so as to be arranged on the core portion 17 of the fastener tape 11.

In this case, the maximum value of the thickness dimension of the stopper element 51 in the vertical direction from the ridge portion 51e disposed on the upper surface side to the ridge portion 51e disposed on the lower surface side is set to be larger than the interval between the inner wall surfaces of the upper and lower blades 33, 34 of the slider 30, as in the above-described embodiment 1. Accordingly, when the stopper element 51 is inserted into the element guide passage 38 of the slider 30, the ridge portion 51e of the stopper element 51 can be reliably brought into contact with the upper and lower blades 33 and 34 of the slider 30, and the sliding resistance of the slider 30 can be increased. Such an effect can be similarly obtained also in the protuberances 52e to 57e of fig. 4 (b) to (g) described later.

The stop tooth 52 shown in fig. 4 (b) is configured by arranging two ridge portions (resistance portions) 52e formed to be elongated in the width direction on the upper and lower surfaces of the base portion 52a, respectively.

The stopper teeth 53 shown in fig. 4 c are configured by arranging cylindrical protrusions (resistance portions) 53e on the upper and lower surfaces of the base portion 53 a.

The raised portion (resistance portion) 54e of the stop tooth 54 shown in fig. 4 d is formed in a mountain shape such that it becomes higher over substantially the entire center portion in the longitudinal direction of the stop tooth 54, and has an inclined surface that is inclined downward from the ridge line portion of the raised portion 54e to the front end edge and the rear end edge. By disposing such an inclined surface on the ridge portion 54e, the slider 30 can easily get over the ridge portion 54e of the stop element 54.

The ridge portion (resistance portion) 55e of the stop tooth 55 shown in fig. 4 (e) is disposed at the center portion in the longitudinal direction of the stop tooth 55, and has an outer surface (upper surface or lower surface) curved in an arc shape. That is, the cut surface of the ridge portion 55e cut in the direction perpendicular to the tape width direction is formed in an arcuate shape, and thus the slider 30 easily passes over the ridge portion 55 e.

In the stop teeth 56 shown in fig. 4 (f), three protrusions (resistance portions) 56e are arranged in the belt width direction on the upper and lower surfaces of the stop teeth 56 in the region extending over the base portion, the neck portion, and the engaging head portion.

The stop tooth 57 shown in fig. 4 (g) has an outer surface curved in an arc shape, and a raised portion 57e having a cross section perpendicular to the tape width direction formed in an arcuate shape is arranged in the tape width direction from the base portion to the engaging head portion.

The stop teeth 58 shown in fig. 4 (h) are configured to have a larger thickness dimension in the vertical direction (in the tape front-back direction) from the tooth upper surface to the tooth lower surface than the normal teeth 14 in the aforementioned example 1. In this case, the maximum value of the thickness dimension of the stop element 58 is set to be larger than the interval between the inner wall surfaces of the upper and lower blades 33, 34 of the slider 30, thereby constituting a resistance portion that increases the sliding resistance of the slider 30.

The stopper element 59 shown in fig. 4 (i) has a structure in which a ridge portion 59f extending from the base portion 59a toward the tape inner side and a ridge portion 59g rising toward the upper surface and the lower surface of the ridge portion 59f are added to the form of the normal element 14 in the above-described embodiment 1, and the ridge portion 59f of the stopper element 59 is configured to insert the tape groove 39 of the slider 30 therethrough.

In this case, the maximum value of the vertical thickness dimension from the ridge portion 59g disposed on the upper surface side of the ridge portion 59f to the ridge portion 59g disposed on the lower surface side is set larger than the groove width of the groove 39 of the slider 30, and the ridge portion 59f having the upper and lower ridge portions 59g is configured as a resistance portion that increases the sliding resistance of the slider 30.

The stop tooth 60 shown in fig. 4 (j) has a structure in which a ridge portion 60e is added to both the upper and lower surfaces of the base portion 60a in the form of the stop tooth 59 shown in fig. 4 (i). In this case, the ridge portion 60e disposed on the base portion 60a and the ridge portion 60f having the ridge portion 60g are each configured as a resistance portion that increases the sliding resistance of the slider 30.

The stop tooth 61 shown in fig. 4 (k) has a ridge 61f extending from the base 61a toward the belt inner side. In the stopper element 61, the maximum value of the thickness dimension in the vertical direction (tape front-back direction) from the upper surface to the lower surface of the ridge portion 61f is set to be larger than the groove width of the groove 39 of the slider 30 by increasing the size of the entire ridge portion 61f, thereby constituting a resistance portion.

The stopping element 62 shown in fig. 4 (l) has a protruding portion 62h protruding from the base portion 62a toward the tape inner side in the tape width direction. The projecting height of the projecting portion 62h from the side face of the base portion 62a is set with respect to the minimum interval between the left and right flange portions 36 in the rear opening-side end portion of the slider 30.

That is, in the stopping element 62, as shown in fig. 5, the projecting height of the projecting portion 62h of the stopping element 62 is set so that the chain width of the element row 12 at the position where the stopping element 62 is arranged when the left and right element rows 12 are engaged is larger than the minimum interval between the left and right flange portions 36 in the rear opening side end portion of the slider 30, thereby constituting a resistance portion that increases the sliding resistance of the slider 30.

In this case, in the left and right element rows 12, the stop elements 62 are arranged so that the stop elements 62 are engaged with each other, whereby the sliding resistance of the slider 30 can be increased more effectively by the projecting portions 62h of the stop elements 62. Further, the slider 30 is preferably configured such that the left and right flange portions 36 are elastically deformable in the tape width direction, and thus the slider 30 can pass over the stop element 15 when operated with an appropriate force.

The stopper teeth 63 shown in fig. 4 (m) have a form in which the front half of the ridge portion 54e of the stopper teeth 54 shown in fig. 4 (d) is cut off. That is, in the stopping element 63 in fig. 4 (m), a ridge portion 63e is disposed on the upper surface side and the lower surface side of the base portion 63a, the ridge portion 63e includes a first inclined surface 63i inclined upward so as to increase the element thickness dimension from the rear end edge portion of the base portion 63a toward the front and a second inclined surface 63j inclined downward at a sharp angle toward the front from the substantially central portion in the longitudinal direction of the stopping element 63, and the angle of inclination of the second inclined surface 63j with respect to the tape surface of the fastener tape 11 is set larger than the angle of inclination of the first inclined surface 63i with respect to the tape surface of the fastener tape 11. In this case, the cross section of the ridge portion 63 perpendicular to the width direction of the belt is formed in a triangular shape.

In the stop element 63 configured as described above, for example, when the element row 12 is disposed such that the first inclined surface 63i of the ridge portion 63e faces rearward (on the side of the separable bottom end stop 40), the stop element 63 enters the element guide passage 38 from the shoulder opening of the slider 30 when the slider 30 is slid in the direction (forward) in which the left and right element rows 12 are engaged with each other.

At this time, since the stop element 63 enters the element guide passage 38 of the slider 30 from the first inclined surface 63i side of the ridge portion 63e, the upper and lower blades 33 and 34 of the slider 30 are guided by the first inclined surface 63i having a gentle inclination angle, and an effect of assisting the slider 30 to smoothly pass over the ridge portion 63e of the stop element 63 can be obtained.

On the other hand, when the slider 30 is slid in the direction (rearward) in which the left and right element rows 12 are separated, the stop element 63 enters the element guide passage 38 from the rear opening of the slider 30. At this time, since the stop element 63 enters the element guide passage 38 of the slider 30 from the second inclined surface 63j side of the ridge portion 63e, it is difficult to obtain an auxiliary effect on the slider 30 like the first inclined surface 63i described above, but an effect of easily stopping the slider 30 at the position of the stop element 63 can be obtained.

That is, the stop element 63 in fig. 4 (m) can obtain the above-described different effects depending on the direction in which the slider 30 is slid, and for example, the slide fastener can be configured to have the stop element 63 so that the fastener elements are smoothly engaged with each other in the left and right element rows, but it is difficult to separate the element rows.

In the present invention, the position and the number of the stop elements disposed on the element row of the slide fastener are not particularly limited, and can be arbitrarily changed as necessary as shown in fig. 6 (a) to 6 (d).

For example, like the slide fastener 2 shown in fig. 6 (a), the slider 30 can be easily stopped by the stopping element 15 by arranging the stopping element 15 only in the element row 12 of one fastener stringer 10, and the stopped state of the slider 30 can be stably maintained. In the slide fastener 2 of fig. 6 (a), the stop element 15 is arranged at a desired position of the element row 12 at which the slider 30 is to be stopped.

In this case, the stop element 15 is preferably disposed on the element row 12 of the fastener stringer 10 on the side where the box pin 42 is disposed. For example, when the left and right element rows 12 are separated as a whole and the left and right fastener stringers 10 are pulled apart, the slider 30 is held by the element row 12 on the side where the box pin 42 is disposed. Therefore, by disposing the stopping element 15 in the element row 12 on the side where the box pin 42 is disposed, the above-described effect of the stopping element 15 on the slider 30 can be stably obtained even when the left and right fastener stringers 10 are pulled apart.

In the slide fastener 3 shown in fig. 6 (b), one stop element 15 is disposed for every three fastener elements in each of the left and right element rows 12, and particularly, the stop elements 15 are disposed so that the stop elements 15 are engaged with each other between the left and right element rows 12. In this case, the stop teeth 15 may be arranged at a predetermined pitch (interval) over the entire length of the dentition 12 in the longitudinal direction, or may be arranged at a predetermined pitch only in a predetermined region in the length of the dentition 12.

In the slide fastener 4 shown in fig. 6c, a region (stop region) in which a plurality of stop elements 15 are continuously arranged is provided at a plurality of portions of the element row 12. In this case, the stop teeth 15 are also arranged so that the stop teeth 15 bite into each other between the left and right dentitions 12. The number of the stop teeth 15 arranged in the stop region can be arbitrarily changed.

In the slide fastener 5 shown in fig. 6 (d), the stop elements 15 are disposed at a predetermined pitch on the left and right element rows 12, but are disposed so that the stop elements 15 do not engage with each other between the left and right element rows 12. In particular, in the slide fastener 5 shown in fig. 6 (d), the stop elements 15 are arranged on the left and right sides of the left and right element rows 12 in a zigzag manner at predetermined pitches.

Even in the slide fasteners 3 to 5 in which the stopping element 15 is disposed as shown in fig. 6 (b) to 6 (d), the effect of the stopping element 15 on the slider 30 can be stably obtained as in the above-described embodiment 1.

In addition, when the slide fastener according to the present invention is used for a front body piece of clothing such as a sweater, for example, the stop element 15 is preferably disposed in a region from a position of a stopper, which is an end portion on the opening side of the element row 12, to within 50%, particularly within 20%, of the element row 12 in the longitudinal direction of the element row 12. Accordingly, in this clothing, the stop element 15 can be effectively arranged in a region where the occurrence rate of the normal slider 30 stop is high, and the slider 30 can be stably stopped.

In the present invention, the configuration of the slider disposed on the slide fastener can be changed as desired, and for example, the slider provided with the locking portions 72, 82, and 92 according to modification examples 1 to 3 shown below can be used instead of the free slider 30 according to embodiment 1 described above.

Further, the material of the sliders according to modification examples 1 to 3 is not particularly limited, but in order to allow a part of the slider bodies 71, 81, 91 in these sliders to be elastically deformed as described below, the slider bodies 71, 81, 91 are preferably molded using a synthetic resin such as polyamide, polypropylene, polyoxymethylene, or the like.

As shown in fig. 7 and 8, the slider body 71 of the slider according to modification 1 includes upper and lower wing plates 73, 74, a guide post 75 connecting front end portions of the upper and lower wing plates 73, 74, flange portions 76 extending in directions approaching each other from left and right side edges of the upper and lower wing plates 73, 74, a pull tab attaching post 77 provided upright on the upper wing plate 73, a pair of two slits 79 provided in parallel in a forward direction from a rear opening side end edge of the upper wing plate 73, a locking portion 72 disposed between the slits 79, and a recessed portion 73a provided in an inner surface of the upper wing plate 73.

The lock portion 72 of modification 1 is integrally provided on the upper blade 73, and includes an elastic piece portion 72a sandwiched by the pair of slits 79 and extending rearward from the closed end of the slits 79, and a convex portion 72b projecting downward from the inner surface of the distal end of the elastic piece portion 72 a.

In this case, the recessed portion 73a provided in the upper blade 73 is disposed so as to overlap with the position of the elastic piece portion 72a, and the thickness of the elastic piece portion 72a in the vertical direction is set to be thinner than the thickness of the upper blade 73 other than the elastic piece portion 72 a. Accordingly, the elastic piece portion 72a is configured to be easily elastically deformed in the vertical direction. Further, the elastic piece portion 72a can secure a desired amount of elastic deformation by appropriately setting the material of the slider body 71, the length of the slit 79, the thickness of the elastic piece portion 72a, and the like.

The protrusion 72b disposed at the distal end of the elastic piece portion 72a is formed such that the lower end position (distal end position) of the protrusion 72b is disposed on the lower blade 74 side than the position of the main inner wall surface of the upper blade 73, and the dimension in the vertical direction from the lower end position of the protrusion 72b to the position of the main inner wall surface of the lower blade 74 is set smaller than the maximum value of the dimension in the vertical direction from the ridge portion 15e on the upper surface side to the ridge portion 15e on the lower surface side in the stop tooth 15. Accordingly, when the stop tooth 15 passes through the tooth guide passage 78, the convex portion 72b of the lock portion 72 can reliably interfere with the ridge portion (resistance portion) 15e of the stop tooth 15.

In this case, the cross section perpendicular to the left-right direction of the convex portion 72b is formed in a semicircular shape, and therefore, when the slider is operated with an appropriate force, the convex portion 72b of the auxiliary locking portion 72 goes over the ridge portion 15e of the stop element 15.

The groove portion 73a of the slider body 71 is disposed from the shoulder opening to the rear opening of the slider body 71 along a path through which the ridge portion 15e of the stopping element 15 passes when the stopping element 15 passes through the element guide passage 78. In this case, the groove width and the groove depth of the recessed portion 73a are set in accordance with the size of the raised portion 15e disposed on the stop tooth 15.

When the slider according to modification 1 is used instead of the free slider according to embodiment 1 described above, as shown in fig. 9, when the stop element 15 enters the element guide passage 78 of the slider according to modification 1, the elastic piece portion 72a of the locking portion 72 disposed in the slider is deflected in the vertical direction, and the convex portion 72b of the locking portion 72 and the ridge portion 15e of the stop element 15 come into contact with each other, thereby generating a large sliding resistance. Accordingly, the slider can be stopped and the stopped state can be maintained.

Further, by providing the slider of modification 1 with the recessed groove portion 73a as described above, when the stop element 15 enters the element guide passage 78 of the slider, the upper and lower wing plates 73, 74 and the ridge portion 15e of the stop element 15 can be prevented from interfering excessively, and abrasion of the stop element 15 and the slider due to the interference can be suppressed.

Further, in the slider of modification 1, since the locking portion 72 is integrally provided on the upper blade 73, the slider of modification 1 in which the pull-tab is integrally formed can be obtained by a single injection molding process, and the manufacturing cost can be reduced by simplifying the manufacturing process of the slider and reducing the number of parts.

In the slider of modification 1, the locking portion 72 is disposed at the end portion on the rear opening side of the upper blade 73, but the present invention is not limited to this, and the locking portion 72 may be disposed at the end portion on the shoulder opening side of the upper blade 73, or the locking portion 72 may be provided only on the lower blade 74 or on both the upper and lower blades 73, 74.

Further, although the lock portions 72 and the recessed portions 73a in the modification 1 are provided corresponding to the stop teeth 15 arranged on one element row 12, the lock portions 72 and the recessed portions 73a may be provided on the slider body 71 so as to be bilaterally symmetrical with respect to the stop teeth 15 arranged on both the right and left element rows 12 in the present invention.

Next, fig. 10 and 11 show a slider body 81 of the slider according to modification 2. The slider body 81 in this modification 2 includes upper and lower wing plates 83, 84, a guide post 85 connecting front end portions of the upper and lower wing plates 83, 84, flange portions 86 extending in directions approaching each other from left and right side edges of the upper and lower wing plates 83, 84, a pull tab attaching post 87 provided upright on the upper wing plate 83, a hole portion 89 provided through a portion of the upper wing plate 83 on the rear opening side, a locking portion 82 surrounded by the hole portion 89 and disposed integrally with the upper wing plate 83, and a recessed portion 83a provided on an inner surface of the upper wing plate 83.

The hole portion 89 in the slider body 81 is provided with the locking portion 82 in the upper blade 83 so as to penetrate the inner wall surface side from the upper surface of the upper blade 83, and has a substantially U-shape when viewed from the upper surface side. The locking portion 82 of modification 2 includes an elastic piece portion 82a arranged to extend toward the hole 89, and a convex portion 82b provided to protrude downward from an inner surface of a distal end portion of the elastic piece portion 82 a.

In this case, since the recessed portion 83a provided in the upper blade 83 is disposed so as to overlap the position of the elastic piece portion 82a, the thickness of the elastic piece portion 82a in the vertical direction is thinner than the thickness of the upper blade 83 other than the elastic piece portion 82a, and the elastic piece portion 82a is easily elastically deformed in the vertical direction, as in the modification 1 described above.

The projection 82b of the locking portion 82 is formed such that the lower end position (tip position) of the projection 82b is disposed on the lower blade 84 side than the position of the main inner wall surface of the upper blade 83, and the vertical dimension from the lower end position of the projection 82b to the position of the main inner wall surface of the lower blade 84 is set smaller than the maximum value of the vertical dimension from the ridge portion 15e on the upper surface side to the ridge portion 15e on the lower surface side in the stop tooth 15. Further, the cross section of the projection 82b perpendicular to the left-right direction is formed in a semicircular shape.

The groove portion 83a of the slider body 81 is disposed from the shoulder opening to the rear opening of the slider body 81 along the path through which the ridge portion 15e of the stopper element 15 passes when the stopper element 15 passes through the element guide passage 88, as in the modification 1 described above.

Fig. 12 and 13 show a slider body 91 of the slider according to modification 3. The slider body 91 in modification 3 includes upper and lower wing plates 93, 94, a guide post 95 connecting front end portions of the upper and lower wing plates 93, 94, flange portions 96 extending in directions approaching each other from left and right side edges of the upper and lower wing plates 93, 94, a pull tab attaching post 97 provided upright on the upper wing plate 93, a locking portion 92 integrally disposed at a rear opening side end portion of the upper wing plate 93, and a recessed portion 93a provided on an inner surface of the upper wing plate 93.

The locking portion 92 of modification 3 includes an elastic piece portion 92a extending rearward from the rear edge of the upper panel 93 on the rear opening side and a convex portion 92b projecting downward from the inner surface of the front end portion of the elastic piece portion 92 a. In this case, the elastic piece portion 92a is disposed on an extension line of the groove portion 93a provided in the upper blade 93, and the thickness of the elastic piece portion 92a in the vertical direction is set to be thinner than the thickness of the upper blade 93 other than the elastic piece portion 92 a.

The convex portion 92b of the locking portion 92 is formed such that the lower end position (tip position) of the convex portion 92b is disposed on the lower blade 94 side with respect to the position of the main inner wall surface of the upper blade 93, and the vertical dimension from the lower end position of the convex portion 92b to the position of the main inner wall surface of the lower blade 94 is set smaller than the maximum value of the vertical dimension from the raised portion 15e on the upper surface side to the raised portion 15e on the lower surface side in the stop tooth 15. Further, the cross section of the projection 92b perpendicular to the left-right direction is formed in a semicircular shape.

Even when the slider according to modification 2 and the slider according to modification 3 as described above are used instead of the free slider 30 of the slide fastener 1 according to embodiment 1, the same effects as those obtained when the slider according to modification 1 is used can be obtained.

Description of the symbols

1: a zipper; 2: a zipper; 3: a zipper; 4: a zipper; 5: a zipper; 10: a zipper strip; 11: a zipper tape; 11 a: a belt main body portion; 11 b: a tooth mounting portion; 12: dentition; 13: zipper teeth; 14: common teeth; 15: stopping the teeth; 15 a: a base; 15 b: a neck portion; 15 c: an engagement head; 15 d: a shoulder portion; 15 e: a raised portion; 17: a core rope portion; 18: a reinforcing film; 30: a slider; 31: a slider body; 32: a pull tab; 33: an upper wing plate; 34: a lower wing plate; 35: a guide post; 36: a flange portion; 37: a pull tab mounting post; 38: a tooth guide passage; 39: a belt groove is formed; 40: separating the insert; 41: inserting a tube; 42: a seat tube; 43: a base body; 51: stopping the teeth; 51 a: a base; 51 e: a raised portion; 52: stopping the teeth; 52 a: a base; 52 e: a raised portion; 53: stopping the teeth; 53 a: a base; 53 e: a raised portion; 54: stopping the teeth; 54e, and (b) 54 e: a raised portion; 55: stopping the teeth; 55 e: a raised portion; 56: stopping the teeth; 56 e: a raised portion; 57: stopping the teeth; 57 e: a raised portion; 58: stopping the teeth; 59: stopping the teeth; 59 a: a base; 59 f: a ridge portion; 59g of: a raised portion; 60: stopping the teeth; 60 a: a base; 60 e: a raised portion; 60 f: a ridge portion; 60 g: a raised portion; 61: stopping the teeth; 61 a: a base; 61 f: a ridge portion; 62: stopping the teeth; 62 a: a base; 62 h: a protrusion; 63: stopping the teeth; 63 a: a base; 63 e: a raised portion; 63 i: a first inclined surface; 63 j: a second inclined surface; 71: a slider body; 72: a lock section; 72 a: an elastic sheet portion; 72 b: a convex portion; 73: an upper wing plate; 73 a: a groove part; 74: a lower wing plate; 75: a guide post; 76: a flange portion; 77: a pull tab mounting post; 78: a tooth guide passage; 79: a slit; 81: a slider body; 82: a lock section; 82 a: an elastic sheet portion; 82 b: a convex portion; 83: an upper wing plate; 83 a: a groove part; 84: a lower wing plate; 85: a guide post; 86: a flange portion; 87: a pull tab mounting post; 88: a tooth guide passage; 89: a hole portion; 91: a slider body; 92: a lock section; 92 a: an elastic sheet portion; 92 b: a convex portion; 93: an upper wing plate; 93 a: a groove part; 94: a lower wing plate; 95: a guide post; 96: a flange portion; 97: and the pulling piece is provided with a column.

Claims (20)

1. A slide fastener (1, 2, 3, 4, 5) comprising a pair of left and right first and second fastener tapes (10) having an element row (12) disposed on opposite tape side edge portions of first and second fastener tapes (11), and a slider (30) slidable along the element row (12), wherein the element row (12) is constituted by a plurality of fastener elements (13) attached to the tape side edge portions at predetermined intervals, and the slider (30) has upper and lower wing plates (33, 34, 73, 74, 83, 84, 93, 94), guide columns (35, 75, 85, 95) connecting the upper and lower wing plates (33, 34, 73, 74, 83, 84, 93, 94), and flange portions (36, 76, 86, 96) disposed on at least one of the left and right side edge portions of the upper and lower wing plates (33, 34, 73, 74, 83, 84, 93, 94),

the zipper (1, 2, 3, 4, 5) is characterized in that,

at least one stop element (15, 51-63) having a resistance portion that is brought into contact with the inner surface of the slider (30) when the slider (30) slides and that increases sliding resistance is partially disposed in the element row (12), and the slider (30) can be locked.

2. The slide fastener according to claim 1, wherein the resistance portion is configured such that the dimension of the stop element (15, 51-57, 60, 63) in the tape normal and reverse direction is larger than the interval between the upper and lower wing plates (33, 34, 73, 74, 83, 84, 93, 94) of the slider (30).

3. The slide fastener according to claim 2, wherein said resistance portion is constituted by at least one raised portion (15 e, 51e-57e, 60e, 63 e) raised toward at least one of a first surface and a second surface of said stop element (15, 51-57, 60, 63) in the tape normal and reverse directions.

4. The slide fastener according to claim 1, wherein a portion of the stopping element (15, 51-57, 60, 63) having the largest dimension in the tape front-back direction is disposed on the core thread portion (17) of the first or second fastener tape (11).

5. The zipper of claim 1,

a tape groove (39) for inserting the first and second fastener tapes (11) is disposed on the left and right side edges of the slider (30),

the stop teeth (59, 60, 61) have ridges (59 f, 60f, 61 f) for inserting the groove (39) of the slider (30),

the resistance portion is configured such that the ridge portions (59 f, 60f, 61 f) have a dimension in the belt front-back direction that is greater than the groove width of the groove (39).

6. The zipper of claim 1,

the stop teeth (62) have a protrusion (62 h) protruding in the belt width direction on the wall surface on the inner side of the belt,

the resistance portion is configured such that the protrusion dimension of the protrusion portion (62 h) is set such that the chain width when the left and right element rows (12) are engaged is larger than the minimum interval between the left and right flange portions (36, 76, 86, 96) of the slider (30).

7. The slide fastener according to any one of claims 1 to 6, wherein at least one of the stop element (15, 51-63) and the slider (30) is configured to be elastically deformable in a tape front-back direction or a tape width direction.

8. The slide fastener according to any one of claims 1 to 7, wherein the resistance portion has an inclined surface inclined in the tape longitudinal direction or a curved surface curved in the tape longitudinal direction.

9. The slide fastener according to any one of claims 1 to 8, wherein the stop elements (15, 51-63) are arranged in the element row (12) in a row in the tape length direction in two or more series.

10. The slide fastener according to any one of claims 1 to 9, wherein the stop elements (15, 51-63) are disposed on the element rows (12) of one or both of the first and second fastener stringers (10).

11. The zipper according to any one of claims 1 to 10,

a separable bottom end stop (40) is disposed on the first and second fastener stringers (10),

the stop teeth (15, 51-63) are arranged on the element row (12) on the side of the seat tube (42) on which the separable bottom end fitting (40) is arranged.

12. The slide fastener according to any one of claims 1 to 11, wherein the stop element (15, 51-63) is disposed in a region from an opening-side end of the element row (12) to within 20% of a length dimension of the entire element row (12).

13. The zipper according to any one of claims 1 to 12,

the slider has a locking portion (72, 82, 92), the locking portion (72, 82, 92) is integrally provided on at least one of the upper and lower wing plates (73, 74, 83, 84, 93, 94) and interferes with the stop element (15, 51-63) to maintain the slider (30) in a stopped state,

the locking portions (72, 82, 92) are configured to be elastically deformable in the belt forward and backward directions.

14. The slide fastener according to claim 13, wherein the locking portion (72, 82, 92) has a convex portion (72b, 82b, 92 b) protruding inward in the tape front-back direction from a main inner wall surface of the upper wing (73, 83, 93) or a main inner wall surface of the lower wing (74, 84, 94).

15. The zipper of claim 14,

a pair of slits (79) cut from the end of the rear mouth side or the shoulder mouth side are arranged on at least one of the upper and lower wing plates (73, 74),

the convex portion (72b) is disposed at the tip of an elastic piece portion (72 a) sandwiched between the slits (79).

16. The slide fastener according to any one of claims 1 to 15, wherein a groove portion (73 a, 83a, 93 a) for avoiding interference with the resisting portion is provided in at least one of the upper and lower wing plates (73, 74, 83, 84, 93, 94).

17. A slider for a slide fastener having upper and lower wing plates (73, 74, 83, 84, 93, 94), guide posts (75, 85, 95) for connecting the upper and lower wing plates (73, 74, 83, 84, 93, 94), and flange portions (76, 86, 96) disposed on left and right side edge portions of at least one of the upper and lower wing plates (73, 74, 83, 84, 93, 94),

the aforementioned slider is characterized in that,

has locking parts (72, 82, 92), the locking parts (72, 82, 92) are integrally arranged on at least one of the upper and lower wing plates (73, 74, 83, 84, 93, 94) and interfere with the zipper teeth (13) of the zipper to keep the zipper head in a stop state,

the locking portions (72, 82, 92) are configured to be elastically deformable in the belt forward and backward directions.

18. The slider according to claim 17, wherein the locking portion (72, 82, 92) has a convex portion (72b, 82b, 92 b) provided so as to protrude further inward in the vertical direction than a main inner wall surface of the upper blade (73, 83, 93) or a main inner wall surface of the lower blade (74, 84, 94).

19. A pull head as recited in claim 18,

a pair of slits (79) cut from the end of the rear mouth side or the shoulder mouth side are arranged on at least one of the upper and lower wing plates (73, 74),

the convex portion (72b) is disposed at the tip of an elastic piece portion (72 a) sandwiched between the slits (79).

20. The slider according to any of claims 17 to 19, wherein a recessed portion (73 a, 83a, 93 a) for avoiding interference with the fastener element (13) of the slide fastener is provided in at least one of the upper and lower wing plates (33, 34, 73, 74, 83, 84, 93, 94).