TWI558336B - Production method of zipper chain belt and zipper chain belt - Google Patents

Description

Zipper chain belt manufacturing method and zipper chain belt

The present invention relates to a method for producing a fastener stringer having a plurality of fastener elements attached to a side edge portion of a fastener fabric of a fastener chain along a longitudinal direction of the fastener fabric, and a fastener tape manufactured by the production method.

The zipper zipper tape is usually attached to the side edge portion of the knitted or woven zipper chain cloth, and a plurality of synthetic resin or metal zipper fasteners are mounted at specific intervals along the longitudinal direction of the chain fabric. Composition.

As a method of manufacturing such a fastener stringer, generally, a method is generally known in which a metal fastener stringer formed into a specific shape is press-fitted to a fastener chain cloth; a ring formed of a monofilament is formed. Button-shaped or serrated zipper teeth are sewn to the zipper chain cloth; when knitting or woven zipper chain cloth, the loop-shaped or zigzag-shaped zipper chain formed by the monofilament is woven or woven into the zipper. a chain cloth; and a synthetic resin material is injection-molded into a zipper chain cloth in a specific shape.

In addition, Japanese Laid-Open Patent Publication No. SHO-50-97607 (Patent Document 1) discloses that a ladder-shaped synthetic resin fastener element is attached to a fastener chain in a U-shaped state. A zipper chain belt.

In Patent Document 1, first, the fastener element 80 shown in FIG. 22 is produced by press working a flat member made of a thermoplastic resin or by injection molding of a thermoplastic resin.

The fastener element 80 includes: a left and right base portion 81 which is continuous with the length direction; the drum The left and right meshing head portions 82 extend from the base portions 81 toward the center portion in the width direction, and the joint portion 83 connects the left and right meshing head portions 82; and the fastener element 80 is formed in a ladder shape as a whole. .

In this case, the left and right meshing heads 82 are arranged at positions shifted from each other in the longitudinal direction. Further, in the left and right base portions 81, concave groove grooves 84 are recessed in the longitudinal direction, and hole portions 85 are bored in the concave groove grooves 84 at specific intervals. Further, a hollow portion 86 is formed from the groove groove 84 of the base portion 81 to the engaging head portion 82.

The zipper element 80 of the above-described Patent Document 1 is sewn by a suture in a state in which the entire base portion 81 and the engaging head portion 82 are overlapped with each other, and the entire connecting portion 83 is bent in a U shape. The side edge portion of the chain fabric of the zipper chain fabric, thereby constituting the fastener stringer. Further, in Patent Document 1, the fastener element 80 bent in a U shape may be attached to the fastener chain by an adhesive, or may be bent in a U shape by high frequency processing or ultrasonic processing. The folded zipper teeth 80 are fused (fused) to the zipper chain cloth.

The zipper tape of Patent Document 1 configured as described above is provided with a hollow portion 86 from the base portion 81 of the fastener element 80 to the engaging head portion 82, so that the engaging head portion 82 can be made elastic, and can be configured to have Soft zipper.

On the other hand, a method of manufacturing a fastener string by thermally welding a fastener element to a fastener chain is described in Japanese Patent Publication No. Sho 57-26762 (Patent Document 2).

In Patent Document 2, a synthetic resin zipper element is molded into a specific shape by using a molding tool, and then the formed fastener element is not directly detached from the molding tool, and only the first zipper element is formed. The second leg portion is pulled out to the outside of the molding tool, and the fastener chain cloth is supplied between the first and second leg portions. Then, the first and second leg portions of the fastener element are subjected to thermocompression bonding (pressure on one side of the heating) by the thermocompression bonding mechanism, whereby the fastener element is thermally welded to the fastener stringer. A zipper chain is used to make a zipper chain.

According to the method of Patent Document 2, the fastener elements are held in the molding tool and connected During the heating period, the fastener element is thermally welded to the fastener chain by the thermocompression bonding mechanism, so that the speed of heating the fastener element by the thermocompression bonding mechanism can be accelerated, and the fastener element can be carried out in a relatively short time. Thermal fusion of the zipper chain cloth. Moreover, the fastener element can be heat-welded to the fastener element without the thermal compression bonding energy of the shape of the fastener element, so that the fastener element can be stably fixed at a specific mounting pitch. Zipper chain cloth.

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Publication No. Sho 50-97607

Patent Document 2: Japanese Patent Publication No. Sho 57-26762

For example, in Patent Document 1, as a method of forming the fastener element 80 having a specific shape and then attaching the fastener element 80 to the fastener element, as described above, the following method is described: the zipper is described. The fastener element 80 is sewn to the fastener chain cloth; the fastener element 80 is attached to the fastener chain by an adhesive; the fastener element 80 is fused (fused) to the fastener chain by high frequency processing or ultrasonic processing.

However, in the case of sewing a fastener element having a specific shape to a fastener chain cloth, it is necessary to perform a sewing process using a dedicated sewing machine corresponding to the shape and size of the fastener element, thereby causing an increase in manufacturing cost and being difficult to cope with. Various types or types of zipper teeth.

Further, when the fastener element is sewn to the fastener stringer, the sewing process is performed while the tension of the fastener chain is applied to the fastener stringer. Therefore, the fastener string is produced in the manufactured fastener stringer. The zipper chain belt is generally biased in the width direction of the chain so that the sprocket attachment portion side of the zipper chain cloth is convex and the end portion side of the zipper chain cloth opposite to the sprocket attachment portion is concave. The problem with 绉).

On the other hand, in the case where the fastener element is attached to the fastener chain by using an adhesive. In this case, it is necessary to apply an adhesive, attach the fastener element to the fastener chain cloth, and dry the adhesive. Therefore, it takes time to install the fastener element on the fastener chain cloth, resulting in a decrease in production speed or an increase in manufacturing cost. After that.

Further, when the fastener element is attached by the adhesive, there is a case where the fastener element is discolored by the adhesive or warpage occurs in the fastener element, and further, due to the deterioration of the adhesive over the years, for example, The case where the fastener element is sewn or welded is easier to peel off from the fastener chain than the fastener element.

When the fastener element is welded to the fastener chain by high-frequency processing or ultrasonic processing, the fastener element is melted and hardened by vibration, so that it is necessary to weld the fastener element to the fastener chain cloth. time. Therefore, in terms of production speed or manufacturing cost, it is desirable to speed up the welding of the fastener elements of the fastener chain.

Further, in the case where the fastener element is welded by high-frequency processing or ultrasonic processing, only the fastener element is melted and fixed to the fastener chain cloth, so that the fixing strength of the fastener element with respect to the fastener chain is likely to be low. . Further, in the case where the fastener element is welded to the fastener string by high-frequency processing or ultrasonic processing, there is a problem that the deflection is caused in the same manner as in the case of performing the sewing process of the fastener element.

Further, in high-frequency processing or ultrasonic processing, basically, the fastener element is melted by vibration, and the melted fastener element is pressed and fixed to the fastener chain by a pressing mechanism (for example, a pressing roller or the like). cloth. Therefore, it is easy to generate a burr or the like on the fastener element attached to the fastener stringer. Further, when the size of the fastener element is small, there is a problem in that when the fastener element is pressed by the pressing mechanism while the fastener element is being welded, the knitting needle eye or the woven needle eye of the fastener chain is formed. The uneven shape on the surface of the chain is transferred to the surface of the fastener element to damage the appearance of the fastener element.

On the other hand, in the case of using a thermocompression bonding mechanism as disclosed in Patent Document 2 as a mechanism for attaching a fastener element made of a synthetic resin having a specific shape to a fastener stringer, the fastener chain is heated by heat. After the tooth is melted, it hardens, so there is melting of the zipper teeth. The time required for the connection becomes longer, resulting in a decrease in production speed or an increase in manufacturing cost.

Moreover, in the case of using a thermocompression bonding mechanism, there is a case where a problem of deflection occurs in the same manner as in the case where the fastener element is welded by high-frequency processing or ultrasonic processing. Further, since the fastener element is heated while being heated toward the fastener stringer, there is a problem in that the fastener element has a burr or the like, or the shape of the fastener element is easily deformed.

The present invention has been made in view of the above problems, and a specific object thereof is to provide a method for manufacturing a fastener tape and a fastener string manufactured by the method, and the method for manufacturing the fastener tape is various The zipper element of the synthetic resin type can also fasten and firmly fix the zipper element to the zipper chain cloth, and prevent the zipper element from being burred or the uneven shape of the zipper chain to be transferred. It is not easy to cause bias problems.

In order to achieve the above object, the most important feature of the method for manufacturing a zipper tape provided by the present invention is that it is basically constructed such that the knitted fabric or woven zipper chain fabric has a side edge portion along the chain. a method of attaching a plurality of zipper chain fasteners with a plurality of fastener elements at a specific distance, and comprising the steps of: forming the fastener elements by using a synthetic resin transparent to infrared laser light; and supplying the side edges of the chain cloth At least one of the first chain cloth surface and the second chain cloth surface opposite to the first chain cloth surface includes the fastener chain cloth that can absorb the infrared ray laser light absorbing material; and the fastener element teeth are overlapped And contacting the first chain fabric surface and/or the second chain fabric surface including the absorbent material on the side edge portion of the fastener fabric; and irradiating the infrared laser light to the side edge of the chain fabric through the fastener element The absorbing material of the portion causes the absorbing material to generate heat, and the fastener element is melted and welded to the fastener zipper.

Preferably, the method for manufacturing the fastener stringer of the present invention comprises the steps of: knitting or woven the above-mentioned fastener chain fabric using synthetic fibers; and the above-mentioned fastener chain cloth and the above-mentioned fastener element by the heat generation of the above-mentioned absorbent material Both melt.

Moreover, it is preferable that the method for producing a fastener tape of the present invention includes the step of pressing the fastener element toward the fastener stringer during or after the irradiation of the infrared laser light.

Further, the method for producing a fastener tape according to the present invention preferably comprises the step of applying a liquid containing the absorbent material to a side edge portion of the fastener fabric of the fastener stringer.

Further, the manufacturing method of the present invention preferably includes the step of forming the fastener element by press working on a synthetic resin sheet. Further, in the production method of the present invention, the fastener element may be formed by injection molding a synthetic resin material to a connecting member continuous in the longitudinal direction of the chain fabric.

Moreover, the manufacturing method of the present invention preferably includes the step of intermittently irradiating the infrared laser light in the longitudinal direction of the chain to the contact portion between the fastener tape and the fastener element.

Furthermore, the manufacturing method of the present invention preferably includes the steps of forming the fastener element in such a manner as to have an engaging head portion, a neck portion, a body portion, and a connecting portion, wherein the engaging head portion is a chain cloth from the fastener string cloth. The side edge is arranged to protrude, the neck portion extends from the engaging head portion in the chain width direction, the main body portion extends from the neck portion in the chain width direction, and the connecting portion is adjacent to the longitudinal direction of the chain cloth. a connection between the main body portions of the fastener element; and a position of the meshing head disposed on the first link surface side of the fastener stringer and the meshing head disposed on the second link surface side a state in which the fastener element is in contact with the first chain fabric surface of the side wall portion of the fastener fabric and the second chain fabric surface in a state in which the longitudinal direction of the chain fabric is shifted; and the fastener tape and the fastener element The contact portion of the main body portion is irradiated with the infrared laser light.

Furthermore, the manufacturing method of the present invention may further include the steps of forming the fastener element in such a manner as to have an engaging head portion, a first leg portion, a second leg portion, and a connecting portion, wherein the engaging head portion is from the fastener stringer The side edge of the chain cloth is arranged to protrude, and the first leg portion is extended in the chain width direction from the first chain surface of the chain side edge portion from the meshing head portion. The second leg portion extends in the chain width direction from the mating head portion on the second chain surface of the side wall portion of the chain fabric, and the connecting portion is the fastener chain adjacent to the longitudinal direction of the chain fabric. Connecting between the first leg portion and the second leg portion of the tooth; and performing the infrared ray on the contact portion between the fastener stringer and the first leg portion of the fastener element, the second leg portion, and the connecting portion Irradiation of laser light.

Secondly, the most important feature of the zipper tape provided by the present invention is that it is basically configured to be attached to a side edge portion of a knitted or woven zipper chain cloth at a specific interval along the length of the chain fabric. a plurality of fastener elements, wherein the fastener element is made of a synthetic resin that is transparent to infrared laser light, and the fastener element is fixed to a side edge portion of the fastener fabric of the fastener chain via a welding portion, and the welding The part contains an absorbing material that can absorb the above-mentioned infrared laser light.

Further, in the fastener stringer of the present invention, it is preferable that the fastener stringer is knitted or woven using synthetic fibers, and the welded portion is formed by melting both the fastener tape and the fastener element.

The method for producing a fastener tape of the present invention is to form a fastener element using a synthetic resin which is transparent to infrared laser light. Further, at least one of the first chain cloth surface and the second chain cloth surface which are prepared at the side edge portion of the chain fabric includes a fastener chain cloth which can absorb an infrared ray laser light absorbing material, and is supplied to the fastener chain cloth. Here, the term "absorbent material" is included in the side edge portion of the fastener fabric of the fastener chain, and is a chain fabric surface of at least one of the first chain cloth surface and the second chain cloth surface of the chain cloth side edge portion of the fastener chain cloth. Coating the absorbent material or laminating the film containing the absorbent material, and arranging the absorbent material on the side edge portion of the fastener fabric (especially the surface of the chain fabric), for example, by constituting the fastener chain The fiber of the cloth itself contains an absorbent material or a fiber-coated absorbent material or the like, and the absorbent material is placed on the side edge portion of the chain fabric. Further, the infrared laser light refers to laser light having a wavelength (peak wavelength) in the range of 700 nm or more.

Secondly, in the present invention, the zipper elements having laser permeability are overlapped and connected The infrared laser light is irradiated from the side of the fastener element in a state in which the side edge portion of the fastener fabric of the fastener chain is attached. Thereby, the infrared laser light is irradiated to the absorbing material through the fastener elements, and the absorbing material irradiated with the infrared laser light generates heat by absorbing infrared laser light.

Thereby, the fastener element receives the heat of the absorbent material and is locally melted in the vicinity of the interface with the fastener chain cloth, so that the molten portion of the rear fastener element is hardened, whereby the fastener element can be welded (joined) to the fastener chain. Manufacture of zipper tapes.

According to the manufacturing method of the present invention, even if the fastener elements have various shapes or sizes, the absorption material can be heated by irradiating the absorption material with infrared laser light, and the fastener element can be placed at the interface with the fastener chain cloth. The local portion is efficiently melted in the vicinity, so that the fastener element can be easily, quickly and firmly welded to the fastener chain cloth. Therefore, the welding time of the fastener elements can be shortened as compared with the case of using, for example, high-frequency processing or ultrasonic processing.

Further, in the manufacturing method of the present invention, the portion near the interface between the fastener element and the fastener tape is partially melted and welded, so that the strain of the fastener element is less likely to occur due to heating. Further, even if the fastener element is pressed to weld the fastener element to the fastener element, it is possible to effectively prevent the fastener element from being burred and to prevent the uneven shape of the fastener element from being transferred to the fastener element. Therefore, the appearance quality (appearance) of the fastener stringer manufactured by the method of the present invention can be improved as compared with the case where the fastener element is welded by, for example, high-frequency processing or ultrasonic processing.

Further, in the manufacturing method of the present invention, when the fastener element is welded to the fastener chain cloth, the fastener element can be firmly and stably fixed without applying a strong tension to the fastener chain in the longitudinal direction of the fastener chain. At the specific position of the zipper chain cloth, the zipper chain belt produced can be made less biased.

The manufacturing method of the present invention further comprises the steps of: knitting or woven a zipper chain fabric using synthetic fibers; and melting the zipper chain cloth and the fastener element by heat generation of the absorbing material.

That is, in the present invention, the fastener chain and the fastener element including the synthetic fiber are used. In the state of overlapping and contacting, when the absorbing material of the zipper chain cloth is irradiated with infrared laser light to heat the absorbing material, the zipper element and the zipper chain cloth can be made at the interface between the two by the heat of the absorbing material. Local melting nearby. Thereby, when the fastener element is welded to the fastener chain cloth, the fixing strength of the fastener element with respect to the fastener chain can be further enhanced.

Further, the manufacturing method of the present invention includes the step of pressing the fastener element toward the fastener stringer during or after the irradiation of the infrared laser light. Thereby, the fastener element which is partially melted by the heat generation of the absorbing material is pressed against the fastener zipper, so that the fastener element can be more firmly welded to the fastener zipper.

Further, the production method of the present invention comprises the step of applying a liquid containing an absorbent material to a side edge portion of a fastener fabric of a fastener chain cloth. Thereby, the side edge portion of the fastener fabric of the fastener stringer can be easily provided with an absorbing material, and welding using infrared laser light can be smoothly performed. In the present invention, as a method of including the absorbent member on the side edge portion of the fastener fabric, for example, a method of bonding or sewing the film containing the absorbent material to the fastener chain may be used. The side edge portion of the chain cloth; or the synthetic fiber constituting the fastener chain cloth itself contains an absorbing material.

Further, the manufacturing method of the present invention comprises the steps of forming a fastener element by press working a flat member made of a synthetic resin. Thereby, the fastener element which is welded to the fastener chain cloth can be easily formed, and the production speed of the fastener element can be accelerated, so that the manufacturing cost of the fastener string can be reduced.

Further, in the manufacturing method of the present invention, the fastener element may be formed by injection molding a synthetic resin material to a connecting member continuous in the longitudinal direction of the chain fabric. Thereby, the fastener element of various shapes can be stably formed, and the fastener string which has the zipper element of the appropriate shape corresponding to the use of the zipper goods of a zipper can be manufactured.

Further, the manufacturing method of the present invention comprises the step of intermittently irradiating the laser beam with the contact portion between the fastener chain and the fastener element in the longitudinal direction of the chain. Thereby, the welded portion of the fastener stringer and the fastener element is intermittently arranged along the longitudinal direction of the chain fabric, so that the fastener element can be firmly fixed to the fastener chain cloth, and the fastener chain can be unfixed. The part of the chain with the zipper teeth is used to ensure the softness of the zipper chain. Therefore, it is possible to stably manufacture a fastener stringer which can appropriately ensure the meshing fasteners of the left and right fastener elements, or the zipper property of the slider, and the like.

Further, the manufacturing method of the present invention includes the steps of forming a fastener element having an engaging head portion, a neck portion, a main body portion, and a connecting portion, wherein the engaging head portion is disposed to protrude from a side edge of the fastener fabric of the fastener chain cloth The neck portion extends from the meshing head in the width direction of the chain, the body portion extends from the neck portion in the width direction of the chain, and the connecting portion is connected between the main body portions of the fastener elements adjacent to the longitudinal direction of the chain cloth. In the state in which the meshing head portion disposed on the first link fabric side of the fastener chain cloth and the meshing head portion disposed on the second link fabric surface side are displaced in the longitudinal direction of the chain fabric, the fastener element is made The first chain cloth surface and the second chain cloth surface contacting the side edge portion of the chain fabric; and the contact portion of the main body portion of the fastener chain cloth and the fastener element are irradiated with infrared laser light. Further, in this case, the manufacturing method of the present invention preferably includes the step of cutting the connecting portion of the fastener element after the fastener stringer and the fastener element are welded.

Thereby, the fastener string including the fastener element which engages the head part, the neck part, and the main body part can be stably manufactured, and the fastener-chain fastener tape manufactured can also have the appropriate softness. Further, the zipper obtained by combining the manufactured fastener stringers in a group of two can smoothly engage the left and right fastener elements, and can ensure good slidability of the slider. Further, the zipper may appropriately have a horizontal tensile strength or a push-up strength which is a characteristic unique to the zipper.

On the other hand, the manufacturing method of the present invention may further comprise the steps of forming a fastener element having a meshing head portion, a first leg portion, a second leg portion, and a connecting portion, wherein the engaging head portion is a self-zipper chain cloth. The side edge of the chain cloth is arranged to protrude, and the first leg portion extends from the meshing head portion on the first chain surface of the side wall portion of the chain cloth in the chain width direction, and the second leg portion is self-engaging head portion. The second chain cloth surface of the side edge portion of the chain cloth extends in the chain width direction, and the connecting portion is between the first leg portion and the second leg portion of the fastener element adjacent to the longitudinal direction of the chain cloth. And connecting the contact portions of the first leg portion, the second leg portion, and the connecting portion of the fastener stringer and the fastener element to the infrared laser light.

Thereby, it is possible to manufacture a fastener string in which the fastener element is continuously fixed to the fastener chain in the longitudinal direction of the fastener, and it is possible to increase the variation of the fastener string which can be manufactured by the method of the present invention.

Next, with respect to the fastener stringer provided by the present invention, the fastener element is composed of a synthetic resin which is transparent to infrared laser light. Further, the fastener element is fixed to the side edge portion of the fastener fabric of the fastener chain via the welded portion, and the welded portion between the fastener element and the fastener string includes an absorbent material that absorbs infrared laser light.

In the zipper chain belt of the present invention having such a configuration, the heat of the absorbing material caused by the irradiation of the infrared laser light is utilized, and the fastener element is locally melted in the vicinity of the interface with the zipper chain cloth, so that the fastener element is zippered. The embossed chain fabric is firmly fixed in a specific shape without causing burrs or the uneven shape of the zipper to be transferred.

Further, the fastener stringer of the present invention has a good appearance as compared with a fastener stringed belt in which a fastener element is welded by high-frequency processing or ultrasonic processing, and the dimensional accuracy of the fastener element is also excellent. Therefore, when the zipper chain belt of the present invention is used to form the zipper, the right and left zipper elements can be smoothly engaged, and the slidability of the slider can be obtained.

Further, in the fastener stringer of the present invention, the fastener element is efficiently welded to the fastener stringer in a short time by the infrared laser light, so that the manufacturing cost can be reduced. Further, even if a strong tension in the longitudinal direction of the chain is not applied to the fastener chain cloth, the fastener element can be fixed, so that the problem of deflection tends to be less likely to occur.

In the zipper chain belt of the present invention, the zipper chain fabric is knitted or woven using synthetic fibers, and the welded portion between the zipper chain cloth and the zipper fasteners melts both the zipper chain cloth and the zipper chain teeth. form. Thereby, the fixing strength of the fastener element with respect to the fastener chain can be further enhanced.

1‧‧‧ zipper

5‧‧‧Sliding parts

5a‧‧‧Slider body

5b‧‧‧ pull film

6‧‧‧1st stop

7‧‧‧2nd stop

10‧‧‧Zipper chain

10a‧‧‧Zipper chain

10b‧‧‧zip chain strap

10c‧‧‧zip chain strap

10d‧‧‧zip chain strap

11‧‧‧Zipper chain cloth

11a‧‧‧Chain body

11b‧‧‧chain side edge

12‧‧‧Chain row

20‧‧‧zipper teeth

21‧‧‧ Upper half of the sprocket (the first sprocket half)

21a‧‧‧ Main body

21b‧‧‧ neck

21c‧‧‧ meshing head

22‧‧‧Lower half of the chain (2nd sprocket half)

22a‧‧‧ Main body

22b‧‧‧ neck

22c‧‧‧ meshing head

23‧‧‧1st sprocket

24‧‧‧2nd sprocket

25‧‧‧Connecting Department

30a‧‧‧welding device

30b‧‧‧welding device

31‧‧‧Laser light exit

32‧‧‧ Pressing Department

33‧‧‧Upper pressing roller

33a‧‧‧ sprocket containment recess

34‧‧‧The lower pressing roller

34a‧‧‧Chain accommodating recess

35‧‧‧ Pressing Department

36‧‧‧Upper pressing roller

37‧‧‧The lower pressing roller

40‧‧‧zipper teeth

41‧‧‧ Upper half of the sprocket (1st sprocket half)

41a‧‧‧ Main body

41b‧‧‧Neck

41c‧‧‧ meshing head

42‧‧‧Lower half of the chain (2nd sprocket half)

42a‧‧‧ Main body

42b‧‧‧ neck

42c‧‧‧ meshing head

43‧‧‧Connecting Department

44‧‧‧ sprocket components

45‧‧‧Connecting Department

46‧‧‧1st sprocket

47‧‧‧2nd sprocket

50‧‧‧zipper teeth

50a‧‧‧Meshing head

50b‧‧‧Upper foot (1st foot)

50c‧‧‧Feet (2nd foot)

50d‧‧‧Upper connection

50e‧‧‧lower connection

54‧‧‧ sprocket components

60‧‧‧zipper teeth

60a‧‧‧Meshing head

60b‧‧‧Upper foot (1st foot)

60c‧‧‧Feet (2nd foot)

60d‧‧‧Upper connection

60e‧‧‧lower connection

64‧‧‧ sprocket components

70‧‧‧zipper teeth

71‧‧‧Single sprocket

72‧‧‧Connected components

73‧‧‧1st sprocket half

73a‧‧‧1st Main Body

73b‧‧‧ neck

73c‧‧‧ meshing head

74‧‧‧2nd sprocket half

74a‧‧‧Second Main Body

74b‧‧‧ sprocket head

Fig. 1 is a plan view showing a slide fastener of a first embodiment of the present invention.

Fig. 2 is an enlarged view of a main portion showing an enlarged main portion of the zipper.

Fig. 3 is a plan view showing a fastener element welded to a fastener element of a fastener chain in the manufacture of a fastener tape.

Fig. 4 is an explanatory view schematically showing a step of irradiating the fastener element to the front surface of the fastener fabric of the fastener chain by irradiating the infrared laser light.

Fig. 5 is an explanatory view schematically showing the movement of the emitting portion of the infrared laser light.

Fig. 6 is an explanatory view schematically showing a step of pressing the fastener element toward the fastener chain by a pressing roller.

Fig. 7 is an explanatory view schematically showing a step of irradiating the fastener element to the back surface of the fastener fabric of the fastener chain by irradiating the infrared laser light.

Fig. 8 is a plan view showing a state in which a fastener element is welded to a front surface of a fastener fabric of a fastener stringer and a back surface of the fastener fabric.

Figure 9 is a cross-sectional view taken along line IX-IX of Figure 8.

Figure 10 is a cross-sectional view taken along line X-X of Figure 8.

Fig. 11 is an explanatory view schematically showing a modification of the step of irradiating the fastener element to the front surface of the fastener fabric of the fastener chain by irradiating the infrared laser light.

Fig. 12 is a plan view showing a fastener stringer of a second embodiment of the present invention.

Figure 13 is a plan view showing a fastener element of a fastener element for the manufacture of the fastener stringer.

Figure 14 is a plan view showing a fastener stringer of Embodiment 3 of the present invention.

Figure 15 is a cross-sectional view taken along the line XV-XV shown in Figure 14.

Fig. 16 is a plan view showing a fastener element of a fastener element for the manufacture of the fastener tape.

Figure 17 is a plan view showing a fastener stringer of Embodiment 4 of the present invention.

Figure 18 is a cross-sectional view taken along line XVIII-XVIII of Figure 17.

Fig. 19 is a plan view showing a fastener element of a fastener element for the manufacture of the fastener stringer.

Figure 20 is a plan view showing a fastener stringer of Embodiment 5 of the present invention.

Figure 21 is a cross-sectional view taken along line XXI-XXI of Figure 20.

Figure 22 is a plan view showing a conventional fastener element for the manufacture of a fastener tape.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Further, the present invention is not limited to the embodiments described below, and various modifications can be made as long as they have substantially the same configuration as the present invention and exert the same operational effects.

Example 1

Fig. 1 is a plan view showing a zipper of the first embodiment, and Fig. 2 is an enlarged view of an essential part showing an enlarged main portion of the zipper.

In the following description of the zipper, the front-rear direction refers to the longitudinal direction of the fastener chain of the fastener chain cloth, and is a linear direction that is the same as the sliding direction of the slider sliding. In particular, the direction in which the slider slides is set to the front so that the left and right element rows are engaged, and the direction in which the slider slides is set to the rear so as to cancel the meshing of the element rows.

Moreover, the left-right direction means the direction of the width direction of the fastener fabric of the fastener chain, and is the direction orthogonal to the chain-surface of a fastener chain, and the direction orthogonal to the longitudinal direction of a fastener. In particular, as shown in FIG. 1, the left and right directions of the top view of the slide fastener (that is, the case where the front and rear directions of the zipper are shown in the upper and lower directions of the drawing) are left and right, respectively. Further, the vertical direction refers to the front and back direction of the chain cloth orthogonal to the chain cloth surface of the fastener chain cloth, and in particular, the direction of the side of the slider which is disposed on the fastener chain cloth is set to the upper side, and the opposite side is provided. The direction is set to the bottom.

As shown in Figure 1, the zipper 1 of the first embodiment includes: a pair of left and right fastener chain 10, which is equal to the left and right zipper chain 11 opposite chain side edge portion 11b is attached with a fastener element 20; a slider 5 configured to be slidable along a sprocket row 12 formed by the fastener elements 20; a first stop 6 disposed adjacent to a front end side of the sprocket row 12; and a second stop 7 adjacent thereto It is disposed on the rear end side of the element row 12.

Each of the fastener stringers 10 includes: a belt-shaped fastener chain fabric 11 which is woven or knitted using synthetic fibers (chemical fibers); and a fastener element 20 which is irradiated by infrared laser light as described below. The welding is performed and fixed to the fastener chain cloth 11. Further, between the fastener stringer 11 and the fastener element 20, a welded portion (fixed portion) for joining the two is formed, and the welded portion includes an absorbing material that absorbs infrared laser light and generates heat.

In this case, the absorbent material contained in the welded portion is not particularly limited as long as it has a property of generating heat by absorbing infrared laser light, and specifically, an inorganic system such as carbon black or a composite oxide pigment is used. An organic coloring material such as a coloring material, a phthalocyanine pigment, or a polymethine pigment.

The fastener stringer 11 of the first embodiment is woven or knitted using synthetic fibers as described above. Therefore, in order to fix the fastener element 20 to the fastener stringer 11, the infrared ray is irradiated to the absorbing material provided in the fastener stringer 11 to heat the absorbing material as follows, and not only synthetic resin but also synthetic resin can be used. The fastener element 20 is partially melted, and the synthetic fiber constituting the fastener chain 11 is partially melted. By thus melting both the fastener element 20 and the fastener stringer 11 and welding the both, the fixing strength of the fastener element 20 to the fastener chain 11 can be enhanced.

In this case, the material of the synthetic fiber constituting the fastener stringer 11 is not particularly limited, but is preferably selected from the group consisting of ABS (Acrylonitrile-Butadiene-Styrene) resin, acrylic resin, and poly Vinyl acetate, polycarbonate, AS (Acrylonitrile-Styrene) resin, nylon, polyethylene, polypropylene, polyacetal, polyethylene terephthalate, polystyrene, polyether oxime At least one synthetic resin of a group of imine, polybutylene terephthalate, polyphenylene sulfide, high density polyethylene, cycloolefin polymer, fluorinated ethylene propylene, and fluororesin, of which particularly preferably nylon , polypropylene or polyethylene terephthalate. Furthermore, in the present invention, as the fastener chain cloth 11 The fibers are not limited to the synthetic fibers described above, and natural fibers such as plant fibers or protein fibers (animal fibers) or recycled fibers may also be used.

Further, the fastener stringer 11 of the first embodiment includes a chain main body portion 11a which is sewn and attached to a zipper-attached article such as clothes, and a side cloth edge portion (also referred to as a sprocket mounting portion) 11b. The fastener element 20 is fixed to the inside of the chain main body portion 11a. The base fabric front surface (first chain cloth surface) and the chain cloth back surface (second chain cloth surface) of the chain fabric side edge portion 11b of the fastener chain fabric 11 are provided with (including) an absorbing material.

As a result, as described below, the fastener element 20 (the first sprocket member 23 and the second sprocket member 24 described below) is overlapped with the front and back sides of the chain fabric side edge portion 11b of the fastener chain fabric 11 and In the state of contact, when the infrared ray is irradiated to the absorbing material disposed on the front and back surfaces of the chain fabric at the side edge portion 11b of the chain fabric, the absorbing material can be heated to melt the fastener element 20 and the fastener zipper 11, so that the zipper element 20 can be melted. The fastener element 20 is welded to the front side of the chain fabric of the side edge portion 11b of the chain fabric.

The fastener element 20 of the first embodiment is configured in the form of a plurality of individual fastener elements which are separated from each other and spaced apart from each other by the fastener element 20 adjacent to each other in the longitudinal direction of the chain fabric. By thus constituting the sprocket row 12 by a plurality of individual sprocket teeth, the chain portion of the sprocket element 20 is not fixed between the individual sprocket teeth in the longitudinal direction of the chain cloth, so that the chain cloth portion can be used The flexibility of the zipper tape 10 is stably ensured.

Further, each of the fastener elements (single element) 20 of the first embodiment includes: an upper half of the element (the first element half) 21, which is disposed on the front side of the chain of the fastener chain 11, and a fastener element. The lower half (second sprocket half) 22 is disposed on the back side of the chain cloth.

Further, the sprocket upper half 21 and the sprocket lower half 22 of the fastener element 20 respectively include main body portions 21a and 22a which are fixed to the chain fabric surface of the chain side edge portion 11b, and are viewed from above (or viewed from above). The neck portion 21b, 22b, and the like extend continuously from the main body portions 21a, 22a in the width direction of the chain fabric so as to protrude from the side edges of the fastener fabric of the fastener chain cloth 11, and have a chain cloth length a shape in which the size of the direction is tapered, and a bulging engaging head portion 21c, 22c extending further from the neck portions 21b, 22b toward the width direction of the chain, and And in a plan view (or looking up), it bulges in the longitudinal direction of the chain to form a substantially elliptical shape.

In this case, although the sprocket upper half 21 and the sprocket lower half 22 of each of the fastener elements 20 are configured to have the same shape and the same size, as shown in FIG. 2, the sprocket lower half 22 is used. The fastener stringer 11 is fixed to the fastener element upper half 21 in a state in which the rear side of the chain fabric is shifted to a specific size in a predetermined size.

By arranging the positions of the element upper half 21 and the element lower half 22 so as to be shifted in the longitudinal direction of the chain cloth, when the left and right fastener elements 20 are engaged, the left and right fastener elements 20 can be easily made. The relative position of the chain cloth in the front and back directions is aligned, and the meshing of the fastener elements 20 can be smoothly performed.

Further, even if the left and right fastener elements 20 are subjected to the thrust in the front and back directions of the chain in the engaged state, the upper half 21 of the fastener elements 20 in the front and back directions of the fastener and the meshing target The sprocket lower half 22 of the zipper element 20 overlaps, and the meshing state of the zipper element 20 can be stably maintained. Further, the positions of the element upper half 21 and the element lower half 22 in the chain width direction coincide with each other.

Each of the fastener elements 20 is made of a synthetic resin that is transparent to infrared laser light. Here, the term "transmissive to infrared laser light" means that the infrared laser light passes through the molded body of the synthetic resin without melting the molded body. For example, even if one part of the infrared laser light is absorbed, the other infrared laser light passes through the molded body and does not. The case where the molded body is melted is included in the permeability to infrared laser light. In other words, the molded body of the synthetic resin (the fastener element 20) preferably does not contain carbon black, an inorganic coloring material, or an organic coloring material.

In this case, examples of the specific synthetic resin constituting the fastener element 20 include, for example, ABS resin, acrylic resin, polyvinyl acetate, polycarbonate, AS resin, nylon, polyethylene, polypropylene, and polycondensation. Aldehydes, polyethylene terephthalate, polystyrene, polyetherimide, polybutylene terephthalate, polyphenylene sulfide, high density polyethylene, cycloolefin polymer, fluorinated ethylene propylene and At least one synthetic resin in the group of fluororesins, but it is particularly preferable to select a synthetic resin which can be satisfactorily welded to the fastener chain cloth 11 In the case of Example 1, it is particularly preferred to use nylon, polypropylene or polyethylene terephthalate.

Further, in the first embodiment, the synthetic resin constituting the fastener element 20 may be colored with a dye, or the synthetic resin constituting the fastener element 20 may contain a heat-resistant agent or a lubricant or the like. 20 gives various functions.

The slider 5 in the first embodiment includes a slider main body 5a and a pull tab 5b rotatably held by the slider main body 5a. Further, the slider body 5a includes: upper and lower blades; a guide post that connects the front ends of the upper and lower blades; and an upper flange portion that is suspended from the left and right side edges of the upper blade; and a lower flange portion. It is erected on the left and right side edge portions of the lower wing plate; and the pull tab mounting post is erected on the upper surface of the upper wing plate.

Further, at the front end of the slider main body 5a, the left and right introduction ports sandwiching the guide post are formed, and an engagement opening is formed at the rear end of the slider main body 5a. Further, a sprocket guiding path that connects the left and right introduction ports and the engagement opening in a substantially Y shape is formed so as to be surrounded by the upper and lower blades, the upper flange portion, and the lower flange portion. Further, between the flange portion and the lower flange portion disposed on the left and right side portions of the slider body 5a, a link insertion gap through which the fastener tape 11 is inserted is formed.

The first stoppers 6 are respectively disposed at the front ends of the left and right fastener tapes 11 so as to be continuous with the element rows 12, and are respectively fixed to the front side and the chain of the chain side edge portions 11b of the fastener chain cloth 11 The back of the cloth. The second stopper 7 is disposed at the rear end portion of the fastener stringer 11 and is attached to the rear end portion of the fastener chain fabric 11 and is attached to the front surface of the chain fabric side edge portion 11b of each fastener chain fabric 11 and the back surface of the chain fabric. .

In the present invention, the means and method for attaching the first stop 6 and the second stop 7 to the fastener chain 11 are not particularly limited, but the first stop 6 and the second stop 7 of the first embodiment are Similarly to the fastener element 20, it is fixed to the fastener stringer 11 by welding by irradiation of infrared laser light. Therefore, between the fastener stringer 11 and the first stopper 6 and the second stopper 7, a welded portion (fixing portion) including an absorbing material that absorbs infrared laser light and generates heat is formed.

In this case, the first stop 6 and the second stop 7 are transmitted through the infrared laser light. The specific synthetic resin constituting the first stopper 6 and the second stopper 7 is, for example, selected from the group consisting of ABS resin, acrylic resin, polyvinyl acetate, polycarbonate, and AS resin. , nylon, polyethylene, polypropylene, polyacetal, polyethylene terephthalate, polystyrene, polyether phthalimide, polybutylene terephthalate, polyphenylene sulfide, high density polyethylene At least one synthetic resin of a group of a cycloolefin polymer, a fluorinated ethylene propylene, and a fluororesin. In particular, the first stopper 6 and the second stopper 7 of the first embodiment are preferably made of a synthetic resin of the same material as the fastener element 20.

Next, a method of manufacturing the fastener stringer 10 of the first embodiment having the above configuration will be specifically described with reference to the drawings.

First, the front side of the chain fabric of the side wall portion 11b of the chain fabric and the back surface of the chain cloth are provided with a fastener chain cloth 11 which can absorb the infrared fluorescent light.

In the first embodiment, a synthetic fiber knitted or woven belt-shaped fastener chain fabric 11 is used, and thereafter, the front side of the chain fabric side edge portion 11b of the obtained fastener chain fabric 11 and the back surface of the chain fabric are coated. The liquid containing the absorbent material is prepared to be provided with the zipper chain cloth 11 of the absorbent material on the front and back sides of the chain fabric at the side edge portion 11b of the chain fabric.

In this case, as the liquid applied to the chain side edge portion 11b of the fastener chain cloth 11, an absorbent material containing carbon black, an inorganic coloring material or an organic coloring material as described above may be dispersed in a solvent such as acetone. A suspension from the middle. Since the solvent in which the absorbent material is dispersed is evaporated or the like, only the components of the absorbent material can remain on the chain side edge portion 11b of the fastener chain fabric 11. In addition, as the liquid applied to the side edge portion 11b of the chain fabric, a solution obtained by dissolving an absorbent material such as carbon black in a solvent such as acetone may be used.

Furthermore, in the present invention, the method of providing the fastener stringer 11 of the absorbent fabric side edge portion 11b is not particularly limited. For example, after the synthetic fiber knitted or woven belt-shaped fastener chain cloth 11 is used, the synthetic resin absorbent film containing the absorbent material is attached to the front side chain and the chain of the chain side edge portion 11b of the fastener chain fabric 11. The back side of the cloth is provided with the zipper chain cloth 11 with an absorbing material.

In this case, the absorbing film can be obtained by mixing the absorbing material to, for example, ABS resin, acrylic resin, polyvinyl acetate, polycarbonate, AS resin, nylon, polyethylene, polypropylene, poly. Acetal, polyethylene terephthalate, polystyrene, polyether phthalimide, polybutylene terephthalate, polyphenylene sulfide, high density polyethylene, cycloolefin polymer, fluorinated ethylene propylene At least one of the synthetic resin materials in the group of the fluororesin is formed into a film shape.

Further, in order to attach the absorbing film to the front surface of the fastener fabric of the fastener stringer 11 and the back surface of the fastener fabric, the following method or the like may be used: the absorbing film is attached to the fastener zipper 11 using an adhesive; and the absorbing film is fused to the zipper by heat or vibration. The chain cloth 11; or the suture film is used to sew the absorbent film to the fastener chain cloth 11.

Further, in the present invention, the fastener stringer 11 may be provided with an absorbent member by using, for example, a synthetic fiber knitted or woven fastener chain 11 which is mixed or provided with an absorbent material.

In the first embodiment, as described above, the fastener chain fabric 11 including the absorbent material is prepared on the side edge portion 11b of the chain fabric, and the synthetic resin as described above which is transparent to the infrared laser is formed separately from the fastener chain fabric 11. Zipper element 20 made of zipper.

In this case, in the first embodiment, the first sprocket member 23 and the second sprocket member 24 as shown in FIG. 3 are formed as the fastener element 20, and the first sprocket member 23 is fixed to The front side of the fastener fabric of the fastener chain 11 constitutes the upper half 21 of the fastener element, and the second element member 24 is fixed to the back surface of the fastener fabric of the fastener chain 11, and constitutes the lower half 22 of the fastener element.

Here, the first sprocket member 23 and the second sprocket member 24 include the main body portions 21a, 22a, the neck portions 21b, 22b of the sprocket upper half portion 21 or the sprocket lower half portion 22 of the above-described individual sprocket teeth, and meshing. The head portions 21c and 22c further include a connecting portion 25 that is connected between the main body portions 21a and 22a which are disposed adjacent to each other in the longitudinal direction of the chain fabric. Therefore, the first and second element members 23 and 24 are formed such that a plurality of individual elements including the body portions 21a and 22a, the neck portions 21b and 22b, and the meshing head portions 21c and 22c are connected at specific intervals via the connecting portion 25. Thinner flat form.

The first and second element members 23 and 24 have the same shape and size, and are formed separately. Further, in the first embodiment, the first sprocket member 23 and the second sprocket member 24 are made of the same synthetic resin. However, in the present invention, the material of the first sprocket member 23 and the second material may be used. The materials of the sprocket members 24 are different from each other.

Further, in the first embodiment, the first sprocket member 23 and the second sprocket member 24 are formed by press working a flat member made of a synthetic resin having laser permeability and having a specific thickness. Thereby, the manufacturing time of the first and second element members 23 and 24 can be shortened, and the manufacturing costs of the first and second element members 23 and 24 can be suppressed.

Further, in the present invention, the method of forming the first and second element members 23 and 24 is not limited, and for example, a synthetic resin material having laser permeability may be injection molded into a specific shape. The first element member 23 and the second element member 24 are provided.

Next, a first welding step is performed in which the first element member 23 is welded to the fastener stringer 11 on the front surface of the chain fabric including the fastener chain 11 of the absorbent member. In the first welding step, the fastener chain cloth 11 having the absorbing material is supplied, and the first sprocket member 23 formed into a specific shape is superposed and brought into contact with the front surface of the zipper chain cloth 11 to be supplied, and further, The absorbing material of the fastener stringer 11 is irradiated with infrared laser light, whereby the first element member 23 is welded to the fastener stringer 11.

Here, FIG. 4 is an explanatory view schematically illustrating a first welding step of welding the first element member 23 to the fastener stringer 11.

The welding device 30a that performs the first welding step includes a chain conveyance unit (not shown) that conveys the supplied fastener chain cloth 11 and a first element member supply unit (not shown) that has the first element member 23 is supplied to the front surface of the chain fabric side edge portion 11b of the fastener chain cloth 11 and overlaps the first element member 23 with the chain side edge portion 11b; the laser light emitting portion 31 emits infrared laser light to make the infrared light The laser beam is irradiated to the absorbing material of the fastener stringer 11 through the first sprocket member 23, and the pressing portion 32 is disposed on the zipper chain 11 of the laser light emitting portion 31. On the downstream side in the conveyance direction, the first element member 23 is pressed toward the chain side edge portion 11b of the fastener chain cloth 11.

The chain fabric transporting unit is configured to linearly and straightly transport the fastener stringer 11 having the absorbent member, and can transport the fastener chain fabric 11 without being stretched in the longitudinal direction of the fastener fabric. In addition, the chain conveyance unit is configured such that the first element member 23 that is supplied from the first element member supply unit and overlaps the fastener stringer 11 can maintain the contact state and the fastener chain 11 Carry it together.

The first sprocket member supply unit supplies the first sprocket member 23 toward the fastener chain cloth 11 in such a manner that the zipper chain cloth 11 is conveyed in a direction in which the laser beam is irradiated with the infrared ray light from the laser light emitting portion 31. At the position on the upstream side, the main body portion 21a of the first element member 23 and the connecting portion 25 overlap with each other at a specific position of the chain side edge portion 11b of the fastener stringer 11.

The laser light emitting unit 31 is disposed above the fastener chain 11 and the first element member 23 that are transported by the chain transport unit, and emits a beam of infrared laser light downward using the infrared laser diode. . As a result, the infrared laser light emitted from the laser light emitting portion 31 passes through the first element member 23 and is irradiated to the absorber contained in the side edge portion of the fastener fabric.

Further, as shown in FIG. 5, the laser light emitting portion 31 of the first embodiment is disposed so as to be movable along the chain width direction with respect to the fastener chain 11 and the first element member 23 which are conveyed by the chain conveyance unit. Move back and forth. Thereby, the irradiation range of one of the infrared laser beams emitted from the laser light emitting unit 31 can be increased in the width direction of the chain cloth, so that the contact area of the fastener element 11 and the main body portion 21a of the first element member 23 can be contacted. The whole body is irradiated with infrared laser light.

Further, in the first embodiment, the laser light emitting portion 31 is configured to emit a beam of infrared laser light. However, in the present invention, the laser light emitting portion 31 may be configured as follows: A beam of infrared laser light is emitted, and a plurality of infrared laser beams are diffused in the width direction of the chain cloth.

The pressing portion 32 includes a pair of upper and lower pressing rollers 33 and 34. In this case, as shown in FIG. 6, on the circumferential surface of the upper pressing roller 33, a sprocket receiving recess 33a for accommodating the first sprocket member 23 is formed, and a peripheral surface of the pressing roller 34 on the lower side is formed and accommodated. The chain cloth of the fastener chain cloth 11 accommodates the recess 34a. Further, in the present invention, the structure of the pressing portion 32 is not particularly limited, and other structures may be employed.

In order to fuse the first element member 23 to the fastener stringer 11 by using the welding device 30a configured as described above, first, the fastener chain 11 is linearly conveyed at a specific conveyance speed by the chain conveyance unit. The first sprocket member supply portion supplies the first sprocket member 23 toward the front surface of the chain fabric side edge portion 11b of the fastener chain cloth 11. Further, the first element member 23 that has been supplied to the fastener stringer 11 is conveyed together with the fastener stringer 11 while maintaining contact with the fastener stringer 11.

Then, the laser light emitting portion 31 disposed on the upper side emits infrared laser light having a wavelength of 700 nm or more with respect to the fastener tape 11 and the first element member 23 conveyed by the chain conveyance unit. The infrared laser light emitted from the laser light emitting portion 31 passes through the first element member 23 and is irradiated to the absorber of the front side of the chain cloth disposed at the side edge portion 11b of the fastener chain cloth 11.

The absorber which is irradiated with the infrared laser light absorbs the infrared laser light and generates heat. By the heat generation of the absorbing material, the fastener chain cloth 11 can be partially melted in the vicinity of the absorbing material, and the first sprocket member 23 can be locally melted in the vicinity of the interface with the fastener zipper 11. Thereby, it is possible to form a molten portion in which both the fastener tape 11 and the first element member 23 are partially fused at the contact portions thereof. Further, an absorbent material is contained in the molten portion.

In this case, in the first embodiment, the main body portion 21a of the first sprocket member 23 to be conveyed is irradiated with the infrared laser light of the absorbing material, but the connection portion 25 of the first sprocket member 23 is stopped. Irradiation of infrared laser light. In other words, in the first embodiment, the contact portion between the fastener tape 11 and the first element member 23 is intermittently irradiated with infrared laser light in the longitudinal direction of the chain.

Then, after the infrared ray is irradiated to the absorbing material, the partially spliced fastener chain 11 and the first sprocket member 23 are conveyed to the pressing portion 32, and the pressing portion 32 is pressed by the upper and lower pressing rollers 33, 34. The first element member 23 (particularly, the body portion 21a of the first element member 23) is pressed toward the fastener stringer 11. At the same time, the melted portion is obtained by fusing the fastener chain 11 and the first element member 23 to form a welded portion.

Thereby, the main body portion 21a of the first element member 23 can be firmly welded to the fastener stringer 11 via the welded portion. In this case, in the first embodiment, since the connection portion 25 of the first element member 23 is not irradiated with the infrared laser light as described above, the connection portion 25 of the first element member 23 and the fastener element 11 are not Welding.

By performing the first welding step as described above, the fastener element 11 obtained by welding the first element member 23 to the front surface of the chain side edge portion 11b of the fastener stringer 11 in the main body portion 21a can be obtained.

Then, the second welding step is performed to weld the second element member 24 to the fastener stringer 11 on the back surface of the fastener fabric with the fastener element 11 of the first element member 23 attached thereto. In the second welding step, the fastener chain cloth 11 to which the first element member 23 is attached is supplied, and the second element member 24 is overlapped and brought into contact with the back surface of the fastener fabric of the fastener stringer 11, and further, the fastener stringer is attached. The absorption material of 11 is irradiated with infrared laser light, whereby the second element member 24 is welded to the fastener chain cloth 11.

Here, FIG. 7 is an explanatory view schematically illustrating a second welding step of welding the second element member 24 to the fastener stringer 11 to which the first element member 23 is attached.

The welding device 30b that performs the second welding step includes a chain transfer unit (not shown), and a second element member supply unit (not shown) that supplies the second element member 24 to the fastener chain 11 and the second The sprocket member 24 is overlapped with the fastener chain cloth 11; the laser light emitting portion 31 emits infrared laser light and is irradiated to the absorbing material; and the pressing portion 35 is disposed to be transported to the zipper chain cloth 11 by the laser light emitting portion 31. On the downstream side of the direction, the second element member 24 is pressed toward the chain side edge portion 11b of the fastener chain cloth 11.

In the welding device 30b that performs the second welding step, the chain transfer unit and the second element The member supply unit and the laser light emitting unit 31 are configured in the same manner as the welding device 30a that performs the first welding step. On the other hand, the pressing portion 35 of the welding device 30a that performs the second welding step includes a pair of upper and lower pressing rollers 36 and 37, and a sprocket housing for accommodating the second sprocket member 24 is formed on the circumferential surface of the upper pressing roller 36. Concave. Further, a receiving recess that accommodates the fastener stringer 11 and the first element member 23 is formed on the circumferential surface of the pressing roller 37 on the lower side of the pressing portion 35.

The main body portion 22a of the second element member 24 is welded to the fastener stringer 11 by the welding device 30b that performs the second welding step as described above, similarly to the case of the first welding step. At this time, in the second welding step, the second element member 24 is welded to the fastener stringer 11 to be specified later than the welding position of the first element member 23 with respect to the fastener stringer 11 in the longitudinal direction of the fastener fabric. The position where the size is staggered.

Further, in the second welding step, as in the case of the first welding step, the connection portion 25 of the second element member 24 is not irradiated with the infrared laser light, so that the connection of the first element member 23 is performed. The portion 25 is not welded to the fastener chain cloth 11.

By performing the first welding step and the second welding step as described above, the first element member 23 can be welded to the front surface of the chain fabric side edge portion 11b as shown in FIG. The fastener stringer 11 of the second element member 24 is welded to the back surface of the chain cloth of the portion 11b. In this case, the main body portions 21a and 22a of the first and second sprocket members 23 and 24 are respectively welded to the fastener chain fabric 11 via the welded portion including the absorbing material. Further, the first sprocket member 23 and the second sprocket member 24 are spaced apart from each other with the fastener chain 11 interposed therebetween.

Then, after the fastener stringer 11 having the first and second element members 23 and 24 as shown in FIG. 8 is produced, the connecting portion 25 of the first element member 23 and the second element member 24 are formed. The connecting portion 25 is cut away, whereby a plurality of individual fastener elements (zipper elements 20) including the element upper half 21 and the element lower half 22 can be manufactured and fixed to the chain side edge portion 11b of the fastener chain cloth 11. Zipper chain belt 10. In this case, the fastener element (fixing portion) of the fastener element 20 and the fastener stringer 11 is intermittently provided in the fastener 1 in the longitudinal direction of the fastener.

As described above, the use of the absorption material caused by the irradiation of infrared laser light The welding of the fastener elements 20 is performed by heat, whereby the fastener element 20 and the fastener chain 11 can be partially melted efficiently in the vicinity of the interface between the two, and the fastener elements 20 can be rotated in a very short time. Firmly welded to the fastener chain cloth 11. Further, in this case, the fastener element 20 can be made less susceptible to strain accompanying the heating of the fastener element 20 and the fastener stringer 11.

Then, the fastener stringer 10 of the present embodiment 1 manufactured in the above manner is combined in groups of two, and the slider 5 is attached to the element row 12 of the set of fastener tapes 10, and the first stop is performed. The stopper 6 and the second stopper 7 are fixed to the set of fastener stringers 10, whereby the zipper 1 shown in Fig. 1 is manufactured. Further, in the same manner as the fastener element 20, the first stopper 6 and the second stopper 7 of the first embodiment are fixed to the fastener chain by welding by irradiation of infrared laser light. Cloth 11.

In the slide fastener 1 of the first embodiment manufactured in this manner, the fastener element 20 is firmly fixed to the fastener chain cloth 11, and the welded portion of the fastener element 20 and the fastener chain 11 is less likely to be produced by using an adhesive. In general, the warp is deteriorated, so that the fixing state of the fastener element 20 with respect to the fastener stringer 11 can be maintained for a long period of time.

Further, since the fastener element 20 is fixed by the heat generation of the absorbing material by the irradiation of the infrared laser light, the zipper element 20 can be effectively prevented from being burred, and the zipper element 20 is not transferred. The case of the uneven shape of the fastener chain cloth 11. Therefore, the fastener tape 10 excellent in appearance quality (appearance) can be obtained.

Moreover, since the obtained fastener stringer 10 can be prevented from being deflected, the left and right fastener elements 20 can be smoothly engaged by sliding the slider 5, and the slider 5 can be prevented from being deflected. The slidability is lowered.

Further, in the first embodiment, in the manufacture of the fastener tape 10, when the first and second element members 23 and 24 are welded to the fastener chain 11, the first welding step and the second welding step are performed. The first element member 23 and the second element member 24 are welded to the fastener stringer 11 in this order.

However, in the present invention, the laser light emitting portion 31 may be disposed on the upper side and the lower side of the fastener chain cloth 11 transported by the chain fabric transporting unit, and the same as the zipper chain cloth 11 When the first element member 23 and the second element member 24 are supplied, the laser beam emitting portion 31 from the upper side and the laser beam emitting portion 31 on the lower side emit infrared laser light. Thereby, the first element member 23 and the second element member 24 can be efficiently welded to the fastener stringer 11 in the primary welding step.

In the first welding step and the second welding step of the first embodiment, the pressing portion 32 that presses the first element member 23 or the second element member 24 toward the chain side edge portion 11b of the fastener chain 11 is pressed. It is disposed on the downstream side of the transport direction of the fastener chain 11 at a position closer to the laser light exit portion 31.

However, in the present invention, as shown in FIG. 11, the pressing portion 32 may be disposed in the mine so that the conveying direction of the pressing portion 32 in the direction in which the fastener tape 11 is conveyed is substantially the same as that of the laser light emitting portion 31. The side of the zipper chain 11 of the light exiting portion 31. Thereby, the melting of the fastener tape 11 and the fastener element 20 by the irradiation of the infrared laser light, and the fastener element 20 which presses the fastener element 11 by the press part 32 can also be performed in the same sequence.

In this case, the pressing roller 33 constituting the upper side of the pressing portion 32 is made of a material that transmits infrared laser light, and the infrared laser light emitted from the laser light emitting portion 31 passes through the upper pressing roller 33 and the first sprocket. The member 23 is irradiated to the absorbent member of the fastener stringer 11.

Example 2

Fig. 12 is a plan view showing the fastener stringer of the second embodiment. 13 is a plan view showing a fastener element for the manufacture of the fastener stringer.

Further, regarding the fastener stringer 10a of the second embodiment shown below and the fastener stringers 10b to 10d of the following embodiments 3 to 5, the shape of the fastener element and the fastener stringer 10 of the above-described first embodiment are the same. The members other than the fastener elements are configured to be substantially the same as the fastener string 10 of the above-described first embodiment.

Therefore, in the fastener stringer 10a of the second embodiment and the fastener stringers 10b to 10d of the following embodiments 3 to 5, the member having substantially the same configuration as the fastener stringer 10 of the first embodiment described above and The parts are denoted by the same reference numerals, and the description thereof is omitted.

The fastener stringer 10a of the second embodiment is formed by combining two in a group. As shown in Fig. 12, the fastener stringer 10a is configured by fixing a fastener element 40 to a chain side edge portion 11b of the fastener chain cloth 11. Further, the fastener chain fabric 11 is composed of a woven or knitted synthetic fiber, and includes a chain main body portion and a chain side edge portion 11b to which the fastener element 40 is fixed.

In the fastener stringer 10a, after the fastener fabric is provided on the front and back sides of the fastener fabric side edge portion 11b of the fastener chain fabric 11, the fastener element 40 (hereinafter referred to as the fastener element 44) is overlapped and brought into contact with the fastener fabric. In the state in which the side edge portion 11b is on the front and back sides of the chain, the absorbing material is irradiated with infrared laser light to generate heat, whereby the fastener element 40 is welded to the front and back surfaces of the chain fabric side edge portion 11b.

Therefore, a welded portion (fixed portion) that joins the two is formed between the front side of the chain fabric and the fastener element 40 in the chain side edge portion 11b of the fastener chain cloth 11, and the welded portion includes the absorbent portion. Infrared laser light and heat absorption material. Further, the absorbent material of the second embodiment is the same as the absorbent material of the above-described first embodiment.

The fastener element 40 of the second embodiment is configured as a plurality of individual fastener elements which are separated from each other by the fastener element 40 adjacent to each other in the longitudinal direction of the fastener fabric, and each of the fastener element (single element) 40 includes: an upper part of the fastener element ( The first sprocket half 41) is disposed on the front side of the fastener fabric of the fastener chain 11, the lower half of the fastener element (second sprocket half) 42 disposed on the back side of the fastener, and the connecting portion 43. It connects the element upper half 41 and the element lower half 42.

The sprocket upper half 41 and the sprocket lower half 42 of the zipper element 40 of the second embodiment include a main body portion 41a, 42a which is fixed to the chain cloth side edge portion 11b; The portions 41b and 42b are continuously extended from the main body portions 41a and 42a in the chain width direction and have a contracted shape; and the bulging meshing head portions 41c and 42c are further from the neck portions 41b and 42b. Extends in the width direction of the chain. Further, the front end portions of the meshing head portions 41c and 42c of the element upper half 41 and the meshing head portions 41c and 42c of the element lower half portion 42 are connected to each other via the connecting portion 43.

In this case, regarding the upper half 41 of the element and the lower half of the element in each of the fastener elements 40 42 is configured to have the same shape and the same size, but mesh with the element lower half 42 in a state in which the upper half 41 of the element is shifted toward the rear side in the longitudinal direction of the chain by a specific size. The front ends of the head portions 41c and 42c are connected by a joint portion 43 and are fixed to the fastener chain cloth 11.

In this manner, the element upper half 41 and the element lower half 42 are coupled by the connecting portion 43, whereby the relative position of the element upper half 41 and the element lower half 42 is stabilized, so that the zipper can be formed. The left and right zipper elements 40 are smoothly engaged.

Similarly to the fastener element 40 of the first embodiment, the fastener element 40 of the second embodiment is composed of a synthetic resin such as nylon, polypropylene or polyethylene terephthalate which is transparent to infrared laser light.

Next, a method of manufacturing the fastener stringer 10a of the second embodiment will be described.

First, in the same manner as in the case of the first embodiment, the zipper chain cloth 11 having the absorbing material capable of absorbing infrared laser light is provided on the front surface of the chain fabric side edge portion 11b and the back surface of the chain fabric. Further, a fastener element 44 of a fastener element 40 as shown in FIG. 13 which is made of a synthetic resin which is transparent to an infrared laser is formed separately from the fastener stringer 11.

The sprocket member 44 shown in FIG. 13 has a configuration in which the first sprocket member 23 and the second sprocket member 24 formed in the first embodiment are joined to the front end of the meshing head portions 41c and 42c by the connecting portion 43. Department link.

That is, the sprocket member 44 of the second embodiment is formed into a thin plate-like shape of a member, that is, a first sprocket portion 46 including a main body portion 41a, a neck portion 41b, an engaging head portion 41c, and a connecting portion 45 that is connected between the main body portions 41a that are disposed adjacent to each other in the longitudinal direction of the chain fabric, and another second sprocket portion 47 that includes a main body portion 42a, a neck portion 42b, an engaging head portion 42c, and a length of the chain cloth. The connecting portion 45 connected between the main body portions 42a disposed adjacent to each other; and the connecting portion 43 connecting the meshing head portions 41c and 42c of the first and second sprocket portions 46 and 47.

In this case, the first sprocket portion 46 and the second sprocket portion 47 are attached to the second sprocket portion 47 which is the sprocket lower half portion 42 with respect to the first sprocket portion 46 which is the sprocket upper half portion 41. Chain length The connection portion 43 is coupled to the rear side in a state in which the position is shifted by a specific size.

The sprocket member 44 of the second embodiment is formed by press working a flat member made of a synthetic resin having laser permeability and having a specific thickness. Further, in the present invention, the sprocket member 44 of the second embodiment may be formed by another method such as injection molding of a synthetic resin having laser permeability.

Next, a welding step is performed in which the element member 44 is welded to the front and back sides of the fastener fabric of the fastener stringer 11 having the absorbent member. In the welding step, the fastener chain cloth 11 having the absorbent material is supplied, and the fastener element 44 of FIG. 13 is overlapped and brought into contact with the front and back sides of the chain fabric side edge portion 11b of the supplied fastener chain fabric 11, and further The absorbing material of the fastener stringer 11 is irradiated with infrared laser light to generate heat, whereby the element member 44 is welded to the fastener chain cloth 11.

Although not shown in the drawings, the welding device for performing the welding step includes a chain cloth conveying unit that conveys the fastener chain cloth 11 and a fastener element supply unit that supplies the element member 44 to the chain side of the fastener chain cloth 11 a pair of upper and lower laser light emitting portions that emit infrared laser light to illuminate the absorbing material of the fastener chain cloth 11 and a pressing portion that is disposed on the zipper chain The sprocket member 44 is pressed toward the chain side edge portion 11b of the fastener chain cloth 11 on the downstream side in the conveyance direction of the cloth 11. In addition, the chain conveyance unit, the upper and lower laser light emitting portions, and the pressing portion in the second embodiment are substantially the same as those in the first embodiment.

In the sprocket member supply portion of the second embodiment, the irradiation position at which the infrared ray is irradiated to the absorbing material from the laser light emitting portion is further on the upstream side of the transport direction of the fastener tape 11, so that the first and The element element 44 is bent so that the second sprocket portions 46 and 47 overlap each other so that the cross section perpendicular to the longitudinal direction of the chain is substantially U-shaped. At the same time, the fastener chain cloth 11 is inserted between the first and second sprocket portions 46, 47 of the bent sprocket member 44, and the main body portions 41a, 42a and the connecting portion 45 of the sprocket member 44 are The fastener element 44 is supplied to the fastener stringer 11 so that the specific position of the chain side edge part 11b of the fastener chain fabric 11 overlaps.

In order to weld the element member 44 to the fastener stringer 11 by using such a welding device, first, While the fastener chain fabric 11 is linearly conveyed at a specific conveyance speed by the chain conveyance unit, the fastener element 44 is supplied from the fastener element supply unit toward the chain side edge portion 11b of the fastener chain cloth 11. At this time, the first and second sprocket portions 46 and 47 of the supplied fastener element member 44 are attached to the chain side edge portion 11b of the fastener chain cloth 11 and the chain of the chain cloth side edge portion 11b. The front side of the cloth and the back side of the chain cloth overlap and contact.

Then, the laser light emitting portion disposed on the upper side and the lower side of the fastener chain cloth 11 irradiates the fastener chain 11 and the element member 44 conveyed by the chain conveyance unit with infrared laser light of a specific wavelength. The infrared laser light emitted from the upper and lower laser light emitting portions is transmitted through the first sprocket portion 46 or the second sprocket portion 47 of the sprocket member 44 to the chain cloth disposed on the chain side edge portion 11b of the fastener chain cloth 11. Absorbent material on the front or back.

Thereby, the absorbing material absorbs the infrared laser light and generates heat, so that the zipper chain cloth 11 can be partially melted in the vicinity of the absorbing material on the front and back sides of the chain cloth, and the sprocket member 44 can be partially in the vicinity of the interface with the zipper chain cloth 11. Melt. Thereby, the melted portion is formed by partially splicing the fastener tape 11 and the sprocket member 44 at the contact portions of the fastener tapes on the front and back sides of the fastener fabric.

In this case, in the second embodiment, the main body portions 41a and 42a of the sprocket member 44 to be conveyed are irradiated with the infrared laser light of the absorbing material, but the connection portion 45 of the sprocket member 44 is stopped from being irradiated with the infrared ray. Since the laser beam is incident on the contact portion between the fastener chain 11 and the element member 44, infrared laser light is intermittently irradiated in the longitudinal direction of the chain cloth.

Thereafter, the partially melted fastener chain 11 and the element member 44 are conveyed to the pressing portion, and the element portion 44 is pressed toward the fastener stringer 11 by the pair of upper and lower pressing rollers.

Thereby, the main body portions 41a and 42a of the first and second sprocket portions 46 and 47 of the element member 44 can be firmly welded to the fastener chain cloth 11. In this case, as described above, since the connection portion 45 of the first and second sprocket portions 46 and 47 is not irradiated with the infrared laser light, the connecting portion 45 of the element member 44 and the fastener stringer 11 are not welded.

By performing the welding step as described above, the front and back sides of the chain fabric side edge portion 11b of the fastener chain fabric 11 can be obtained, and the main body portions 41a and 42a of the first and second sprocket portions 46 and 47 are welded. The zipper chain 11 of the sprocket member 44. In this case, the first and second sprocket portions 46 and 47 of the sprocket member 44 are respectively welded to the fastener zipper 11 via a welded portion including the absorbing material.

Then, after the sprocket member 44 as described above is welded, the connecting portions 45 of the first and second sprocket portions 46 and 47 of the sprocket member 44 are cut off, whereby the manufacture can be made as shown in FIG. The fastener stringer 10a of the second embodiment.

In the second embodiment, since the welding is performed by irradiating the absorbing material with infrared laser light, the fastener element 40 and the fastener chain 11 can be partially efficiently melted in the vicinity of the interface between the two, and The fastener element 40 is firmly welded to the fastener chain cloth 11 in a very short time.

Then, the fastener stringer 10a of the second embodiment manufactured in the above manner is combined in groups of two, the slider is mounted on the element row of the set of fastener tapes 10a, and the set of fastener tapes 10a is attached to the set of fastener tapes 10a. The first stop and the second stop are fixed, thereby manufacturing a zipper.

In the fastener stringer 10a and the zipper of the second embodiment manufactured in this manner, the fastener element 40 is firmly fixed to the fastener chain cloth 11, and the welded portion of the fastener element 40 and the fastener chain 11 is less likely to be produced, for example. The subsequent deterioration of the fastener element 40 is maintained by the adhesive, so that the fixing state of the fastener element 40 with respect to the fastener stringer 11 can be maintained for a long period of time.

Moreover, the zipper element 40 can be effectively prevented from being burred, and the zipper element 40 is not transferred to the embossed chain cloth 11 in the uneven shape. Therefore, the fastener stringer 10a having excellent appearance quality can be obtained. Further, in the second embodiment, similarly to the above-described first embodiment, it is possible to obtain an effect of preventing the deflection of the fastener stringer 10a.

Further, in the second embodiment, when the fastener element 44 is welded to the fastener stringer 11 in the manufacture of the fastener tape 10a, the first fastener element 46 and the second fastener element can be simultaneously used by the primary welding step. Although the portion 47 is welded, in the present invention, the first element portion 46 and the second element portion 47 may be sequentially welded to the fastener stringer 11 by the two welding steps.

Example 3

Fig. 14 is a plan view showing the fastener stringer of the third embodiment, and Fig. 15 is a cross-sectional view taken along the line XV-XV shown in Fig. 14. Moreover, Fig. 16 is a plan view showing a fastener element of a fastener element for the manufacture of the fastener tape.

The fastener stringer 10b of the third embodiment is configured such that the fastener element 50 is fixed to the chain side edge portion 11b of the fastener chain cloth 11. Further, the fastener chain fabric 11 is composed of a woven or knitted synthetic fiber, and includes a chain main body portion and a chain side edge portion 11b to which the fastener element 50 is fixed.

In the fastener tape 10b, an absorbent material is provided on the front side of the chain fabric side edge portion 11b of the fastener chain fabric 11. Further, in a state where the fastener element 50 (hereinafter referred to as the fastener element 54) is superposed on and in contact with the front and back sides of the fastener fabric side edge portion 11b of the fastener stringer 11, the infrared ray is irradiated to the absorbing material to absorb the absorbing material. The material is heated, whereby the fastener element 50 is welded to the chain side edge portion 11b via the welded portion.

In this case, the spliced portion of the fastener element 50 and the fastener side edge portion 11b of the fastener stringer 11 includes an absorbing material. Further, the absorbent material of the third embodiment is the same as the absorbent material of the above-described first embodiment.

The fastener element 50 of the third embodiment has a continuous continuous shape of a continuous continuous shape in the longitudinal direction of the chain fabric, and is transmitted through infrared laser light such as nylon, polypropylene or polyethylene terephthalate. Composition of synthetic resin.

The fastener element 50 includes an engaging head portion 50a, upper and lower leg portions (first and second leg portions) 50b and 50c extending from the meshing head portion 50a in the chain width direction, and upper and lower connecting portions 50d, 50e, which is connected between the leg portions 50b and the lower leg portions 50c adjacent to each other in the longitudinal direction of the chain fabric.

In this case, the engaging head portion 50a is formed so as to connect the front end portion of the upper leg portion 50b and the front end portion of the lower leg portion 50c so as to straddle the front side of the chain cloth and the back side of the chain cloth. Further, the engaging head portion 50a has a bulging shape in which the central portion of the front and back of the chain cloth protrudes in the longitudinal direction of the chain cloth, and the maximum dimension of the longitudinal direction of the engaging head portion 50a is set. It is set to be larger than the longitudinal direction of the chain of the upper and lower leg portions 50b and 50c.

Further, the upper leg portion 50b and the lower leg portion 50c have a fixed cross-sectional shape and extend in the chain width direction, and are disposed to be spaced apart from each other with the fastener stringer 11 interposed therebetween. In the fastener element 50, the portion of the upper and lower leg portions 50b and 50c that overlaps and contacts the fastener stringer 11 and the upper and lower connecting portions 50d and 50e are welded to the chain side edge of the fastener chain cloth 11 via the welded portion. Part 11b.

Next, a method of manufacturing the fastener stringer 10b of the third embodiment will be described.

First, in the same manner as in the case of the first embodiment, the zipper chain cloth 11 having the absorbing material capable of absorbing infrared laser light is provided on the front surface of the chain fabric side edge portion 11b and the back surface of the chain fabric. Further, a fastener element 54 of a fastener element 50 as shown in FIG. 16 which is made of a synthetic resin which is transparent to infrared laser light is formed separately from the fastener stringer 11.

The element member 54 shown in FIG. 16 is formed into a thin plate-like shape in which the upper leg portion 50b and the upper connecting portion 50d are opened in parallel with the lower leg portion 50c and the lower connecting portion 50e. In this case, when the upper leg portion 50b and the upper connecting portion 50d and the lower leg portion 50c and the lower connecting portion 50e are drawn so as to connect the central portions of the respective engaging head portions 50a, a straight line along the longitudinal direction of the link is drawn. The straight line is arranged symmetrically with respect to the reference line, and the upper leg portion 50b and the lower leg portion 50c are disposed so that the positions in the longitudinal direction of the chain cloth correspond to each other.

The sprocket member 54 of the third embodiment is formed by press working a flat member made of a synthetic resin having laser permeability and having a specific thickness. Further, in the present invention, the sprocket member 54 of the third embodiment can be formed by other methods such as injection molding of a synthetic resin having laser permeability.

Next, a welding step is performed in which the sprocket member 54 of FIG. 16 is overlapped and brought into contact with the front and back sides of the chain fabric side edge portion 11b of the fastener stringer 11 having the absorbing material, and further, the zipper chain cloth 11 is The absorbing material irradiates the infrared laser light, whereby the sprocket member 54 is welded to the fastener chain cloth 11. In the third embodiment, the welding device for performing the welding step is configured substantially the same as the welding device used in the second embodiment.

In the third embodiment, in order to weld the fastener element 54 shown in FIG. 16 to the fastener stringer 11, first, the fastener chain 11 is linearly conveyed at a specific conveyance speed by the chain conveyance unit. The element member 54 is supplied from the element member supply portion to the chain side edge portion 11b of the fastener stringer 11.

At this time, the supplied sprocket member 54 is bent into a substantially U shape so that the leg portion 50b and the upper connecting portion 50d overlap the lower leg portion 50c and the lower connecting portion 50e, and the sprocket member 54 is placed on the upper leg. The portion 50b and the upper connecting portion 50d and the lower leg portion 50c and the lower connecting portion 50e are overlapped with each other so as to be in contact with the chain side edge portion 11b of the fastener chain cloth 11, and are in contact with the chain cloth front side and the chain cloth of the chain cloth side edge portion 11b. back.

Then, the zipper chain cloth 11 and the sprocket member 54 that have been transported emit infrared laser light of a specific wavelength from the laser light emitting portions disposed on the upper side and the lower side. The infrared laser light emitted from the laser light emitting portion is transmitted through the sprocket member 54 to the absorbing material provided on the front and back sides of the chain cloth side edge portion 11b of the fastener chain cloth 11.

Thereby, the absorption material that absorbs the infrared laser light generates heat, and both the fastener chain cloth 11 and the element element 54 are partially melted at the contact portions thereof, and the fastener chain 11 is formed on the front side of the chain cloth of the fastener chain cloth 11 and The sprocket member 54 is fused to obtain a molten portion. In this case, in the third embodiment, the upper portion 50b, the upper connecting portion 50d, the lower leg portion 50c, and the lower connecting portion 50e of the element member 54 are continuously irradiated with infrared laser light in the longitudinal direction of the chain. .

Thereafter, the partially spliced fastener chain 11 and the sprocket member 54 are conveyed to the pressing portion, and the sprocket member 54 is pressed toward the fastener sash 11 at the pressing portion, whereby the sprocket member 54 can be placed on the upper leg. The portion 50b and the upper connecting portion 50d and the lower leg portion 50c and the lower connecting portion 50e are firmly welded to the fastener chain cloth 11.

The fastener stringer 10b of the third embodiment as shown in Fig. 14 can be manufactured by performing the welding step as described above. Then, the zipper is manufactured by combining the fastener stringers 10b of the third embodiment manufactured in the above manner in a group of two.

In the third embodiment, as in the case of the above-described first embodiment and the like, The absorbing material is fused by the infrared laser light, so that the zipper element 50 and the zipper chain 11 can be partially melted in the vicinity of the interface between the two, and the fastener element 50 can be firmly fixed in a very short time. The ground mesh is welded to the fastener stringer 11, so that the same effects as in the case of the above-described Embodiment 1 or Embodiment 2 can be obtained.

Example 4

Fig. 17 is a plan view showing the fastener stringer of the fourth embodiment, and Fig. 18 is a cross-sectional view taken along the line XVIII-XVIII shown in Fig. 17. Further, Fig. 19 is a plan view showing a fastener element of a fastener element for manufacturing the fastener tape.

The fastener stringer 10c of the fourth embodiment is configured by fixing the fastener element 60 to the chain side edge portion 11b of the fastener chain cloth 11. Further, the fastener chain fabric 11 is composed of a woven or knitted synthetic fiber, and includes a chain main body portion and a chain side edge portion 11b to which the fastener element 60 is fixed.

An absorbent material is disposed on the front and back sides of the chain fabric side edge portion 11b of the fastener chain fabric 11. Further, in a state where the fastener element 60 (the sprocket member 64 described below) is placed in contact with the front and back sides of the chain fabric side edge portion 11b of the fastener chain cloth 11, the absorbing material is irradiated with infrared laser light to absorb the absorbing material. The material is heated, whereby the fastener element 60 is welded to the chain side edge portion 11b via the welded portion. In this case, the spliced portion of the fastener element 60 and the fastener side edge portion 11b of the fastener stringer 11 includes an absorbing material.

The fastener element 60 of the fourth embodiment is composed of a synthetic resin such as nylon, polypropylene or polyethylene terephthalate which is transparent to infrared laser light. The fastener element 60 includes an engaging head portion 60a, upper and lower leg portions (first and second leg portions) 60b and 60c extending from the meshing head portion 60a in the chain width direction, and an upper connecting portion 60d. The leg portions 60b are connected to each other in the longitudinal direction of the chain fabric; and the lower connecting portion 60e is connected between the leg portions 60c adjacent to each other in the longitudinal direction of the chain fabric.

In this case, the engaging head portion 60a is formed so as to connect the front end portion of the upper leg portion 60b and the front end portion of the lower leg portion 60c so as to straddle the front side of the chain cloth and the back side of the chain cloth. Further, the engaging head portion 60a has a central portion in the front and back direction of the chain cloth convex toward the longitudinal direction of the chain cloth. In the form of a bulging shape, the maximum dimension of the longitudinal direction of the engaging head portion 60a is set to be larger than the longitudinal direction of the upper and lower leg portions 60b, 60c.

Further, the upper leg portion 60b and the lower leg portion 60c have a fixed cross-sectional shape and extend in the chain width direction, and are disposed to be spaced apart from each other with the fastener stringer 11 interposed therebetween. The upper connecting portion 60d and the lower connecting portion 60e are intermittently arranged in the longitudinal direction of the chain. In particular, in the fourth embodiment, the connecting portion 60d disposed on the front side of the chain fabric and the lower connecting portion 60e disposed on the back side of the fabric are alternately arranged along the longitudinal direction of the chain, and the fastener element 60 is provided in a zigzag shape. A shape that is curved and continuous along the length of the chain fabric.

Further, in the fastener element 60 of the fourth embodiment, the portion of the upper and lower leg portions 60b and 60c that overlaps with the fastener stringer 11 and the upper and lower connecting portions 60d and 60e are welded to the fastener chain via the welded portion. 11 chain side edge portion 11b.

Next, a method of manufacturing the fastener stringer 10c of the fourth embodiment will be described.

First, in the same manner as in the case of the first embodiment, the zipper chain cloth 11 having the absorbing material capable of absorbing infrared laser light is provided on the front surface of the chain fabric side edge portion 11b and the back surface of the chain fabric. Further, a fastener element 64 of a fastener element 60 as shown in FIG. 19 which is made of a synthetic resin which is transparent to an infrared laser is formed separately from the fastener stringer 11.

The element member 64 shown in FIG. 19 is formed into a thin plate-like form in which the upper leg portion 60b and the upper connecting portion 60d are opened in parallel with the lower leg portion 60c and the lower connecting portion 60e. In this case, the upper connecting portion 60d between the upper leg portion 60b and the connecting portion 60e connecting the lower leg portion 60c are alternately arranged in the longitudinal direction of the chain as described above, and the element member 64 is viewed from above. It has a sawtooth shape.

The sprocket member 64 of the fourth embodiment is formed by press working a flat member made of a synthetic resin having laser permeability and having a specific thickness. Further, in the present invention, the sprocket member 64 of the fourth embodiment can be formed by another method such as injection molding of a synthetic resin having laser permeability.

Next, the sprocket member 64 of Fig. 19 is overlapped and brought into contact with a zipper having an absorbing material. The front side of the chain cloth side edge portion 11b of the chain cloth 11 is directly on the back surface, and further, the absorbing material of the fastener chain cloth 11 is irradiated with infrared laser light to generate heat, whereby the element member 64 is welded to the fastener chain cloth. 11 welding step. Further, the welding step in the fourth embodiment is substantially the same as the welding step in the above-described third embodiment, and thus the detailed description thereof will be omitted.

By performing the welding step, the upper leg portion 60b and the upper connecting portion 60d and the lower leg portion 60c and the lower connecting portion 60e of the element member 64 are firmly welded to the fastener stringer 11, so that the same as shown in Fig. 14 can be manufactured. The fastener stringer 10c of Example 4. Then, the zipper chain 10c of the present embodiment 4 manufactured in the above manner was combined in a group of two to manufacture a zipper.

In the fourth embodiment, similarly to the case of the first embodiment and the like, the welding of the infrared ray by irradiating the absorbing material is performed, so that the fastener element 60 and the fastener zipper 11 can be placed at the intersection of the two. The vicinity of the interface is partially melted efficiently, and the fastener element 60 can be firmly welded to the fastener stringer 11 in a very short period of time, so that the same effects as in the case of the above-described Embodiment 1 or Embodiment 2 can be obtained.

Example 5

Fig. 20 is a plan view showing the fastener stringer of the fifth embodiment, and Fig. 21 is a cross-sectional view taken along the line XXI-XXI shown in Fig. 20.

The fastener stringer 10d of the fifth embodiment is configured by fixing the fastener element 70 to the chain side edge portion 11b of the fastener chain cloth 11. Further, the fastener stringer 11 is composed of a woven or knitted synthetic fiber, and includes a chain main body portion and a chain side edge portion 11b to which the fastener element 70 is fixed.

The fastener stringer 10d is provided with an absorbent material on the front and back sides of the chain fabric side edge portion 11b of the fastener chain fabric 11, and then the fastener element 70 is overlapped and brought into contact with the chain fabric side edge portion 11b. In the state of the front surface (the first chain cloth surface), the absorbing material is irradiated with infrared laser light to generate heat, and the fastener element 70 is welded to the chain side edge portion 11b via the welded portion including the absorbing material.

The fastener element 70 of the fifth embodiment is a pair of infrared lasers such as nylon, polypropylene or polyethylene terephthalate by a connecting member 72 which is transparent to infrared laser light. A plurality of individual sprocket 71 composed of a light-permeable synthetic resin are connected to each other. The connecting member 72 can use a cord that is bundled and continuous, and can form a separate sprocket 71 on the cord.

Each of the individual sprocket teeth 71 includes a first sprocket half portion 73 disposed on the back side of the fastener fabric of the fastener chain cloth 11 and a second sprocket half portion 74 disposed on the front side of the fastener fabric of the fastener chain cloth 11 . Further, it has a shape different from that of the first sprocket half 73.

The first sprocket half portion 73 includes a first main body portion 73a that is fixed to the fastener chain cloth 11 and a neck portion 73b that protrudes from the first main body portion 73a so as to protrude from the side edge of the fastener fabric of the fastener chain cloth 11. The chain cloth extends continuously in the width direction and has a shape that is contracted in such a manner that the size of the chain cloth is tapered; and a bulging engaging head portion 73c extending from the neck portion 73b toward the width direction of the chain cloth And bulging toward the longitudinal direction of the chain when viewed from the top to be substantially elliptical. In the fastener element 70 of the fifth embodiment, only the first main body portion 73a of the first sprocket half portion 73 is welded to the chain side edge portion 11b of the fastener chain fabric 11 via the welded portion.

The second sprocket half 74 includes a second main body portion 74a having a substantially rectangular parallelepiped shape, and a connecting member 72 is sandwiched between the first main body portion 73a and a sprocket head portion 74b, which is a self-zipping chain cloth 11 The manner in which the side edges of the chain cloth protrude protrudes from the second main body portion 74a in the chain width direction. The sprocket head portion 74b has a shape in which the dimension in the longitudinal direction of the chain fabric is decreased toward the front end of the sprocket head portion 74b so as to have a substantially triangular shape in plan view.

Next, a method of manufacturing the fastener stringer 10d of the fifth embodiment will be described.

First, the front side of the chain fabric prepared on the side edge portion 11b of the chain fabric is provided with a fastener chain cloth 11 which can absorb the infrared ray of the infrared ray.

Further, the connecting member 72 is injection-molded by a specific shape of a synthetic resin material having transparency to an infrared laser, and is formed separately from the fastener stringer 11 by the connecting member 72. The zipper elements 70 of the second sprocket halves 73 and 74 are connected by a plurality of individual sprocket 71. In this case, the connecting member 72 is made of a synthetic resin that is transparent to infrared lasers, or a synthetic material that is transparent to infrared lasers. It is composed of synthetic fibers of resin.

Next, the welding step is performed such that the first main body portion 73a of the first sprocket half portion 73 comes into contact with the front side of the chain fabric side edge portion 11b of the fastener stringer 11 having the absorbent material, and the zipper is zippered. In a state in which the fastener element 70 overlaps the chain side edge portion 11b of the fastener chain cloth 11, the absorbing material of the fastener chain cloth 11 is irradiated with infrared laser light, whereby the fastener element 70 is welded to the fastener chain cloth 11.

In the welding step, the fastener element 11 is linearly conveyed at a specific conveyance speed while the fastener element 70 is overlapped with the chain side edge portion 11b of the fastener chain cloth 11, and is disposed on the fastener chain. The laser light emitting portion on the upper side of the cloth 11 emits infrared laser light of a specific wavelength to the fastener chain cloth 11. The infrared laser light emitted from the laser light emitting portion is transmitted to the front surface of the chain cloth provided at the side edge portion 11b of the fastener chain 11 through the fastener element 70 (i.e., the individual element 71 and the connecting member 72). material.

Thereby, since the absorbing material absorbs infrared laser light and generates heat, both the fastener chain fabric 11 and the fastener element 70 are partially melted at the contact portion in the vicinity of the absorbing material. In this case, in order to weld the first main body portion 73a of the first sprocket half portion 73 to the fastener chain cloth 11, the zipper chain cloth 11 to be conveyed intermittently irradiates the absorbing material with infrared laser light in the longitudinal direction of the chain fabric. .

Further, in the fifth embodiment, similarly to the case of the first embodiment described above, the fastener element 70 is pressed toward the fastener stringer 11 during or after the irradiation of the infrared laser light. Thereby, the first sprocket half 73 of the fastener element 70 can be firmly welded to the fastener stringer 11, so that the fastener stringer 10d of the fifth embodiment as shown in Fig. 20 can be manufactured. Then, the zipper chain 10d of the fifth embodiment manufactured in this manner was assembled in a group of two.

In the fifth embodiment, as in the case of the first embodiment and the like, the welding of the infrared ray by irradiating the absorbing material is performed, so that the fastener element 70 and the fastener zipper 11 can be placed at the intersection of the two. The portion near the interface is efficiently melted, and the fastener element 70 can be firmly welded to the fastener chain cloth 11 in a very short time, so that the above embodiment can be obtained. 1 or the same effect as in the case of the second embodiment.

Further, in the fifth embodiment, after the connecting member 72 is formed by molding a plurality of individual sprocket teeth 71 to form the fastener element 70, the infrared laser light is transmitted through the fastener element 70 to the absorbing material of the fastener chain 11, Thereby, the zipper chain cloth 11 is welded.

However, in the present invention, for example, a fastener element having a specific shape may be directly formed on the fastener stringer 11 by injection molding, and the infrared laser light may be transmitted to the fastener chain 11 through the fastener element. The absorbing material is melted and welded to the fastener zipper 11 by the injection molded fastener element.

In other words, in the case of the fastener stringer 11 having the absorbing material, the synthetic resin material having the laser permeable property is formed, and the fastener element having the specific shape is attached (temporarily fixed) to the fastener stringer 11, Thereafter, the infrared laser light is irradiated to the absorber of the fastener stringer 11 through the fastener elements from the outer side of the fastener element.

Thereby, the fastener element can be partially melted, and it is preferable that the fastener element and the fastener chain 11 are partially melted, and the fastener element is welded to the fastener chain 11. Therefore, the fastener element can be more firmly fixed to the fastener chain cloth 11 than the case where the fastener element is attached to the fastener chain cloth 11 only by injection molding, and the zipper chain which is formed by the injection can be easily reinforced. The fixing strength of the teeth with respect to the fastener chain cloth 11.

11‧‧‧Zipper chain cloth

21a‧‧‧ Main body

23‧‧‧1st sprocket

25‧‧‧Connecting Department

30a‧‧‧welding device

31‧‧‧Laser light exit

32‧‧‧ Pressing Department

33‧‧‧Upper pressing roller

34‧‧‧The lower pressing roller

Claims (12)

A method for manufacturing a fastener tape, characterized in that it is a method for manufacturing a fastener tape (10, 10a, 10b, 10c, 10d), which is attached to the fastener tape (10, 10a, 10b, 10c, 10d) The chain side edge portion (11b) of the knitted or woven zipper chain cloth (11) is mounted with a plurality of zipper elements (20, 40, 50, 60, 70) at a specific interval along the longitudinal direction of the chain cloth. And the method for manufacturing the fastener tape includes the steps of: forming the fastener element (20, 40, 50, 60, 70) by using a synthetic resin transparent to infrared laser light; supplying the knitted or woven fabric The fastener stringer (11), the first fastener fabric (11) on the first chain fabric edge portion (11b) and the second chain fabric on the opposite side of the first fastener fabric surface At least one of the surface includes an absorbing material that absorbs the infrared laser light; and the zipper element (20, 40, 50, 60, 70) overlaps and contacts the side edge portion (11b) of the chain cloth. The first chain cloth surface and/or the second chain cloth surface; and the infrared laser light transmitted through the fastener element (20, 40, 50, 60, 70) The absorbing material that has been incident on the side edge portion (11b) of the chain fabric causes the absorbing material to generate heat, and the fastener element (20, 40, 50, 60, 70) is melted and welded to the zipper chain cloth (11). . The method for producing a fastener stringer according to claim 1, comprising the steps of: knitting or woven the above-mentioned fastener chain cloth (11) using synthetic fibers; and the above-mentioned fastener chain cloth (11) by heat generation of the above-mentioned absorbent material Melting with both of the above-mentioned fastener elements (20, 40, 50, 60, 70). The method for manufacturing a zipper tape of claim 1 or 2, comprising the steps of: At the time of irradiation of the infrared laser light or after the irradiation, the fastener element (20, 40, 50, 60, 70) is pressed toward the fastener stringer (11). The method for producing a fastener stringer according to claim 1 or 2, comprising the step of applying a liquid containing the absorbent material to the chain side edge portion (11b) of the fastener stringer (11). A method of manufacturing a fastener stringer according to claim 1 or 2, comprising the step of forming said fastener element (20, 40, 50, 60) by press working a synthetic resin sheet. A method of manufacturing a fastener stringer according to claim 1 or 2, comprising the step of forming said fastener element (70) by ejecting a synthetic resin material from a joining member (72) continuous in the longitudinal direction of the chain fabric. The manufacturing method of the fastener stringer of claim 1 or 2, comprising the step of intermittently contacting the contact portion of the fastener tape (11) and the fastener element (20, 40, 70) along the longitudinal direction of the chain fabric. The above-described irradiation of infrared laser light is performed. A method of manufacturing a fastener stringer according to claim 1 or 2, comprising the steps of including an engaging head portion (21c, 22c, 41c, 42c), a neck portion (21b, 22b, 41b, 42b), and a main body portion (21a) The fastener elements (20, 40) are formed in the manner of 22a, 41a, 42a) and the connecting portions (25, 45), wherein the engaging heads (21c, 22c, 41c, 42c) are from the above-mentioned fastener chain cloth (11) The side edges of the chain cloth are arranged to protrude, and the neck portions (21b, 22b, 41b, 42b) extend from the engaging head portions (21c, 22c, 41c, 42c) in the chain width direction, and the main body portion (21a, 22a, 41a, 42a) extend from the neck portion (21b, 22b, 41b, 42b) in the width direction of the chain, and the connecting portions (25, 45) are the fastener elements that are adjacent to each other in the longitudinal direction of the chain cloth ( The main body portions (21a, 22a, 41a, 42a) of 20, 40) are connected to each other; and the meshing head portions (21c, 41c) disposed on the first chain cloth surface side of the fastener chain cloth (11) are The engaging head portion (22c, disposed on the second chain cloth side) The relative position of 42c) is shifted in the longitudinal direction of the chain fabric, and the fastener element (20, 40) is brought into contact with the first chain surface and the second chain surface of the chain side edge portion (11b). And irradiating the contact portion of the main body portion (21a, 22a, 41a, 42a) of the fastener stringer (11) and the fastener element (20, 40) with the infrared laser light. A method of manufacturing a fastener stringer according to claim 1 or 2, comprising the steps of including an engaging head portion (50a, 60a), a first leg portion (50b, 60b), a second leg portion (50c, 60c), and The fastener elements (50, 60) are formed by connecting the portions (50d, 50e, 60d, 60e), wherein the engaging heads (50a, 60a) protrude from the side edges of the chain of the fastener stringer (11) In the arrangement, the first leg portions (50b, 60b) extend in the chain width direction from the meshing head portions (50a, 60a) on the first chain fabric surface of the chain fabric side edge portion (11b). The two leg portions (50c, 60c) extend from the engaging head portion (50a, 60a) on the second chain surface of the chain side edge portion (11b) in the chain width direction, and the connecting portion (50d, 50e, 60d, 60e) are connected between the first leg portions (50b, 60b) of the fastener element (50, 60) adjacent to the longitudinal direction of the chain fabric and between the second leg portions (50c, 60c); And the first leg portions (50b, 60b), the second leg portions (50c, 60c), and the connecting portions (50d, 50e) of the fastener stringer (11) and the fastener elements (50, 60). The contact portion of 60d, 60e) performs the above infrared laser The irradiation. A method of manufacturing a fastener stringer according to claim 1, comprising the steps of: transporting and supplying the fastener stringer (11) in a longitudinal direction of the chain fabric; and the first chain fabric surface of the chain fabric side edge portion (11b) And/or the second chain cloth surface is supplied to the fastener element (20, 40, 50, 60, 70), and the first chain surface and/or the second chain surface and the fastener element are 20, 40, 50, 60, 70) are conveyed in the longitudinal direction of the chain cloth in a state of being overlapped and contacted; and being supplied to the above-mentioned fastener chain cloth by irradiation of the above-mentioned infrared laser light (11) And the fastener element (20, 40, 50, 60, 70), and the conveyed fastener chain (11) and the fastener element (20, 40, 50, 60, 70) are sequentially melted. A zipper chain belt, characterized in that it is attached to a chain side edge portion (11b) of a knitted or woven zipper chain cloth (11), and a plurality of mountings are arranged at a specific interval along the longitudinal direction of the chain fabric. a zipper element (20, 40, 50, 60, 70), and the zipper element (20, 40, 50, 60, 70) comprises a synthetic resin transparent to infrared laser light, the zipper element ( 20, 40, 50, 60, 70) is fixed to the chain side edge portion (11b) of the knitted or woven knitted chain cloth (11) via a welded portion, and the welded portion includes absorbable The above-mentioned infrared laser light absorbing material. The zipper chain belt of claim 11, wherein the zipper chain cloth (11) is knitted or woven using synthetic fibers, and the splicing portion is the zipper chain cloth (11) and the fastener elements (20, 40, 50, 60, 70) Both are formed by melting.