KR20030090522A - Slide fastener having separable bottom end stop - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a slide fastener with an open separation insertion hole provided with a reinforcing member 13 of good quality without increasing peeling or damage. The reinforcing member 13 which protrudes to the surface of the fastener tape 4 is provided in the side of the box rod 10 and the butterfly rod 11. This reinforcing member 13 is provided with the inclined part 17 which becomes substantially triangular toward the outer edge 22 near the lower end 23 of the fastener tape 4. The edge portion of the inclined portion 17 is an inclined surface portion 18 which is gently inclined to the tape surface.

Description

SLIDE FASTENER HAVING SEPARABLE BOTTOM END STOP}

The present invention relates to a slide fastener with an open separation insertion hole provided with a box rod of an open separation insertion hole attached to an end of the fastener tape and a reinforcing member for reinforcing the fastener tape extended to the butterfly rod.

In recent years, in the field of slide fasteners, it is a demand of the market to simplify a structure and to provide a low cost and high quality product. This tendency is predominantly used in slide fasteners with open separation fitting openings, which are mainly used for opening and closing portions of the whole body of a garment, and which can connect or detach the ends of the fastener tape.

However, conventional slide fasteners with an open release insert insert a fastener element according to opposite edges of a pair of fastener tapes, and a box rod, a box member, and a butterfly rod are continuously formed at the lower end of the fastener element. An open separation insertion hole is attached. The fastener tape of the part attaching the open separation insert is attached to the back of the plain fabric (taffeta) or the resin film by reinforcing tape provided with an adhesive layer, and then reinforced to stabilize the shape of the same part. Is attached.

In addition, the opening of the slide fastener formed by integrally molding the box rod, the butterfly rod, and the reinforcement members of the net-shaped reinforcement member by injection molding means on both sides of the fastener tape by using synthetic resin without attaching the reinforcing tape to the end of the fastener tape. A separate fitting insertion opening is disclosed in Utility Model Publication No. 41-17374 (see Fig. 19). In addition, an opening and disengaging insertion hole of a slide fastener for forming a box rod and a butterfly rod disposed at the end of the fastener stringer and having a reinforcing member for tape reinforcement having an arc shape projecting in an arc toward the lower end portion of the outer smoke tape is provided in Japan. Japanese Patent Laid-Open No. 50-118848 is disclosed.

The slide fastener with the above-described open-fitting insertion hole to which the reinforcing tape is attached requires a reinforcing tape separately to reinforce the fastener tape, thereby increasing the number of parts of the slide fastener and increasing the product cost. In addition, in the manufacturing process of the slide fastener, a process of attaching a reinforcing tape or the like and an attaching processing machine are necessary, and since the manufacturing process cannot be simplified, the cost of the product is increased.

Since the opening separation fitting insertion opening 6 'of the slide fastener shown in Fig. 19 has a corner portion of which the outer periphery of the reinforcing member 13' has a sharp tip, the reinforcing member 13 'is caught by another and peeled off. easy. In addition, since the reinforcing member 13 'is provided wide and wide toward the outer edge of the fastener tape 4', when the fastener tape 4 'is rigidized at that portion to attach the slide fastener to the adherend, , The reinforcing member 13 'and the sewing machine needle (not shown) contact with each other, so that the sewing machine needle is broken frequently. In addition, when performing the operation of connecting or disconnecting the opening separating insertion hole 6 ', external force such as torsion or bending may be repeatedly applied to the reinforcing member 13' and the reinforcing member 13 'may be broken. In addition, the reinforcing member 13 'which protrudes the outer edge in an arc shape toward the lower end of the tape is thick, which may damage the sewing machine needle when sewing again, and the corners at the lower end of the reinforcing member 13' are different. There is a problem such as being easily caught and peeled off.

The present invention has been invented in view of the above-described problems, and the injection molding of the reinforcing member in the open separation insertion hole is directly injected into the fastener tape to reduce the cost of the product, and at the same time, to enhance the flexibility of the reinforcing member to be peeled or broken. Its main purpose is to provide a slide fastener with an open-separation insertion hole which is difficult to have good quality and hardly breaks the sewing machine needle at the time of sewing, thereby improving the production efficiency.

Still another object is a slide with an open separation insert that includes a reinforcing member that does not easily break by reinforcing the protruding start end portion of the reinforcing member that is most loaded when an external force capable of deforming the reinforcing member is applied. To provide a fastener.

Still another object is a slide fastener with an open split fitting insert having an excellent reinforcing member that is sturdy and has a novel design. To provide.

Another object is to provide a slide fastener with an open separation insert that can prevent the lower end portion of the fastener tape from simply unwinding and can be held neat over long periods of time.

Still another object is that in injection molding of the reinforcing member, the molten resin can be spread evenly to every corner of the corner extending from the protruding start end of the reinforcing member to the outer part, so that the molding of the reinforcing member can be easily formed. To provide a slide fastener.

Other objects become apparent from the description of the embodiments described below.

In order to achieve the above object, the basic configuration of the present invention is a fastener element is attached to each of the opposite edges of the pair of fastener tape, it is formed of a box rod, butterfly rod, box member in succession to the lower end of the fastener element In a slide fastener with an open resin insertion hole made of a synthetic resin, a box rod and a butterfly rod attached in continuous contact with a lower end portion of the fastener element protrude from an opposite side, that is, an outer side surface thereof, on at least one side of the fastener tape. The plate-shaped reinforcement member which protrudes into the protrusion is provided in a box rod and a butterfly rod, and a reinforcement member is provided with the inclination part inclined toward the outer edge near the lower end part of a fastener tape, and is provided between the lower end part and the inclination part of a reinforcement member. The whole being approximately triangular, with the gap gradually narrowing towards the outer side of the reinforcing member It is in a slide fastener with an open release fitting opening formed into a shape.

According to this configuration, the flexible function of the reinforcing member can be improved, and the material can be reduced, leading to a reduction in the cost of goods, and also the quality of the reinforcing member peeling off from the fastener tape and being hard to be damaged is good, and not shown at the time of sewing It is difficult to break the sewing machine needle has an effect that can improve the manufacturing efficiency.

In addition, the reinforcing member provided on the other surface, for example, the back surface of the fastener tape, is smaller in shape than the reinforcing member provided on one surface, for example, the surface, and both reinforcing members are provided on the side of the box rod and the butterfly rod. When the fastener tape near the surface is sandwiched from the front and back direction, the protruding start end portion of the surface side reinforcing member that is most loaded even when an external force for deforming the reinforcing member is applied is reinforced with the reinforcing member provided on the back side. There is an effect that the reinforcing member on the surface side is not easily broken. Alternatively, when the reinforcing members disposed on both front and back sides of the fastener tape are formed in the same shape, even when an external force for deforming the reinforcing member is applied, all parts of the front and back reinforcing members are not easily broken, and they are durable and withstand long-term use. It can be effective.

The reinforcing members provided on the box rod and the butterfly rod may be inclined portions which are inclined linearly downward in the outer portion of the reinforcing member, or may be curved in a shape in which the inclined inclined portions are slightly half moon-shaped toward the inner side rather than in the straight form. . By such a structure, the frequency which the other catches in the inclination part of a reinforcement member is reduced more, and a reinforcement member is hard to peel off from a fastener tape, and also there exists an effect which finishes in a novel shape also by design. Alternatively, when the corner portion of the reinforcing member is formed of a slanted surface that is gently inclined toward the surface of the fastener tape, the reinforcing member is reduced by reducing the frequency that the entire reinforcing member is caught by another, and securing an area that can be in close contact with the fastener tape. It is preferable because it prevents peeling of the film and at the same time improves the feel.

A fastener formed between the inclined portion of the reinforcing member and its lower end portion so as to extend outwardly in parallel with the outer edge of the fastener tape, so that the outer portion, that is, the side end portion thereof, coarsens the portion of the corresponding fastener tape. The welded yarn is formed by forming or knitting the tape so as to easily penetrate the synthetic resin, or by arranging a welded yarn which can be hot melted on the outer portion of the reinforcing member, that is, the portion of the fastener tape to which the lateral tip portion corresponds. It is preferable to be able to fuse with resin in order to raise adhesive strength.

Further, the reinforcing member is provided with a plate-like protrusion member continuously provided on the outer side of the reinforcing member, that is, the side end portion thereof, and the protrusion member is configured to be narrowed in such a manner as to wrap and support the outer edge of the fastener tape. The outer leading end portion of the member can be reliably clamped to the fastener tape and is preferable because there is no effect of being peeled off from the fastener tape.

When the reinforcing member is formed in a shape in which the lower end portion of the reinforcing member and the lower end portion of the fastener tape are formed to reinforce the fastener tape, the reinforcing member prevents loosening of the thread at the cutting end portion of the fastener tape and prevents loosening of the thread in a neat form for a long time. Since it can hold | maintain over, it is preferable, and if a reinforcement member is formed in the mesh which forms the mesh of the inside whole surface of a reinforcement member except the peripheral part which the periphery of a reinforcement member continues, the flexibility of a reinforcement member is encouraged, and In addition to reducing the material, it is also excellent in design, and it is easy to spread molten resin evenly around the periphery of the reinforcing member during injection molding of the reinforcing member, so that the effect of easily forming the reinforcing member can be achieved. have.

In addition, another basic configuration of the present invention is to attach fastener elements to the opposite edges of the pair of fastener tapes, respectively, and to form an open-separation insertion hole made of synthetic resin formed of a box rod and a butterfly rod continuously at the lower end of the fastener element. In the slide fastener to which is attached, the reinforcing member of the plate shape which protrudes from at least one side of the fastener tapes protrudes from the opposite side surface, ie, the outer side surface in the box rod and the butterfly rod which are continuously contacted to the lower end part of the fastener element, The reinforcing member is provided with a box rod and a butterfly rod, and the reinforcing member has an inclined portion inclined toward the outer edge near the lower end portion of the fastener tape, and the gap between the lower end portion and the inclined portion of the reinforcing member gradually increases toward the outer portion of the reinforcing member. It can also be formed in the shape which becomes the whole triangular shape narrowing narrowly. The. With this configuration, since the reinforcing member is disposed on only one side, the effect of the present invention is very remarkable, such as the flexibility of the reinforcing member can be further increased, the material can be reduced, and the cost of the product can be reduced. .

1 is a front view of the main part of a slide fastener with an open release insert;

Fig. 2 is a front view of the main part of the stringer in which the box rod is mounted.

3 is a bottom view of the stringer.

Fig. 4 is a front view of the main part of the stringer on which the butterfly rod is attached.

5 is a bottom view of the stringer.

6 is a side view of the box member.

Fig. 7 is a sectional view taken along line VIII-VIII in Fig.6.

Fig. 8 is a front view of a portion cut away showing a state in which a box member is inserted into the box rod;

Fig. 9 is a front view showing a cut away portion showing a state immediately before inserting a butterfly bar in the open separating insertion slot;

Fig. 10 is a front view showing a part of the butterfly rod set at the opening separation insertion opening;

11 is a front view of a stringer distal end portion showing a modification of the reinforcing member.

12 is a front view of a stringer end portion showing another modification of the reinforcing member.

Figure 13 is a bottom view of the stringer.

14 is a front view of a stringer distal end showing still another modification of the reinforcing member.

Fig. 15 is a bottom view of the stringer.

Fig. 16 is a bottom view of a stringer showing another modification of the reinforcing member.

Fig. 17 is a front view of the stringer distal end showing a modification of the reinforcing member.

18 is a bottom view of the stringer.

Figure 19 is a front view of a known open release insert.

<Explanation of symbols for the main parts of the drawings>

1: fastener chain

2: stringer

4: fastener tape

5: Fastener Element

6: open separation insert

8 core part

10: box rod

11: butterfly rod

12: box member

13, 20: reinforcing member

14: lower part

15: outside

16: mesh

17: inclined portion

21: V-shaped groove

22: outer edge

23: lower part

25: recess

26: branch

37: branch

EMBODIMENT OF THE INVENTION Hereinafter, the slide fastener with an opening separation insertion hole of this invention is demonstrated concretely, referring drawings.

In the slide fastener with an open separation insertion hole of the present invention, as shown in Fig. 1, the fastener chain 1 is capable of completely separating the open product, that is, the left and right stringers 2, rather than the fixed product using the lower fixing. It is a slide fastener provided with the opening-separation insertion slot 6, and the fastener element 5 is attached to the core part 8 of the side edge of the fastener tape 4. As shown in FIG. The box rod 10 is attached to the lower end of the fastener element 5 of one stringer 2, and the bow rod is connected to the lower end of the fastener element 5 of the other stringer 2 11) is attached to the core part 8, respectively. And the box rod 10 is equipped with a box member 12 to complete the opening separation insertion hole.

The box rod (10) attached to one stringer (2) of the fastener chain (1) has a plate-shaped reinforcing member (13) having flexibility that protrudes from the surface of the fastener tape (4) to the side of the box rod (10). And a plate-shaped reinforcing member 13 having a flexibility that protrudes from the surface of the fastener tape 4 to the butterfly rod 11 that is integrally installed on the other stringer 2. Integral to the side. Then, the fastener element 5, the box rod 10, the butterfly rod 11, and the reinforcing member 13 in the fastener chain 1 are each fastened with the fastener tape 4 by injection molding means using a thermoplastic resin. Mold integrally.

The box rod 10 and the butterfly rod 11 protrude and install the plate-shaped reinforcement member 13 which has the flexibility which protrudes in each side surface, as shown in FIGS. In the box rod 10, as shown in FIG. 2, the inclined portion inclined from the vicinity of the upper end of the box rod 10 toward the outer edge 22 near the lower end 23 of the fastener tape 4. 17) is installed over the entire length of the box rod (10) to form a. The spacing between the inclined portion 17 and the lower portion 14 of the reinforcing member 13 gradually narrows toward the outer portion 15 of the reinforcing member 13 disposed near the outer edge 22 of the fastener tape 4. ought. That is, the reinforcing member 13 is formed in the shape which becomes pointed toward the outer side part 15 from the protruding start end part of the side of the box rod 10. As shown in FIG. As a result, the reinforcing member 13 easily follows the deformation of the fastener tape 4 and is easily deformed, and the upper end portion of the reinforcing member that is most susceptible to the other is hardly caught by the other, so that the reinforcing member 13 is fastener tape. Peeling from (4) is prevented. And the reinforcing member 13 is shape | molded by the injection molding means on the surface of the fastener tape 4, as shown in FIG. 3, and crimp | bonded to the fastener tape 4 is shown.

The inclined portion 17 of the reinforcing member 13 is formed in a shape that is substantially straight toward the bottom of the outer portion 22 of the reinforcing member 13, or somewhat in a half moon toward the inside of the reinforcing member 13. It is formed into a curved shape, making it harder to catch with others. Further, as shown in Fig. 3, the reinforcing member 13 is formed with an inclined surface portion 18 which is gradually inclined downward toward the surface of the fastener tape 4, and other things such as sewing machine legs are caught. Forming in a shape that prevents the reinforcing member 13 from being peeled from the fastener tape 4 is prevented. Moreover, between the inclination part 17 and the lower end part 14 of the reinforcement member 13, the outer part 15 extended in parallel with the outer edge 22 of the fastener tape 4 is provided, and the reinforcement member 13 is Do not become a pointed shape more than necessary, that is, the shape of the sharp tip. Thereby, the area which the outer side part 15 and the fastener tape 4 crimp is ensured, and it makes it difficult for the reinforcement member 13 to peel from the outer side part 15. FIG. The reinforcing member 13 has a mesh 16 in its entire surface, except for the peripheral portion of which the periphery is continuous, to impart flexibility and elasticity to the reinforcing member 13 by the mesh 16.

The mesh 16 is formed by a tape pressing member which positions the fastener tape 4 so as not to be deformed by the injection pressure in the molding cavity of the mold when the reinforcing member 13 is injection molded. By forming the reinforcing member 13 into a substantially triangular shape and by forming the mesh 16, the material can be reduced, and the reinforcing member 13 is formed into a shape excellent in design. In addition, the V-shaped groove 21 is formed intermittently in the lower end portion 14 of the reinforcing member 13. The V-shaped groove 21 is formed to secure a space for pressing the lower end 23 of the fastener tape 4 with the tape pressing member during injection molding of the reinforcing member 13.

As shown in FIG. 2, the box rod 10 forms a recessed recess 25 in the middle portion of the outer surface of the box 10, and the locking portion 26 at the lower end of the recess 25. ) Is engaged with the latched portion 37 provided on the box member 12. In addition, the box rod 10 protrudes over the entire length of the box rod 10 on the rear surface side of the fastener tape 4, as shown in FIG. 3, and the reinforcing member 13 is disposed on the surface of the fastener tape 4. The plate-shaped reinforcement member 20 provided with the flexibility which protrudes smaller is provided, and the fastener tape 4 of the side surface vicinity of the box rod 10 is clamped with the reinforcement member 13 of the surface side. The presence of this reinforcing member 20 guides smoothly when the box member 12 is inserted from the lower end of the box rod 10. Moreover, when the slider 7 is moved downward from the upper end of the box rod 10 to contact the box member 12, and when it starts up upward, it has a function to guide smoothly.

In addition, when the reinforcing member is deformed in accordance with the deformation of the fastener tape, the deformation of the fastener tape is suppressed in comparison with the other parts in the protruding start end of the reinforcing member most susceptible to damage, and the reinforcing member is hardly damaged by the protruding start end. Reinforce it to

The reinforcing member 13 is also provided to the butterfly rod 11 similarly to the box rod 10. For example, as shown in FIG. 4, the inclined side toward the outer edge 22 near the lower end 23 of the fastener tape 4 from the upper end portion of the butterfly rod 11, that is, the portion equivalent to the box rod 10. Form an inclined portion 17, and a gap between the inclined portion 17 and the lower end portion 14 of the reinforcing member 13 approaches the outer edge 22 of the fastener tape 4, and is disposed. It gradually narrows toward the outer side part 15 of (). Then, the reinforcing member 13 is molded on the surface of the fastener tape 4 by injection molding and pressed. The inclined portion 17 is formed in a shape that is substantially straight toward the bottom of the outer portion 22 of the reinforcing member 13 or in a shape that is curved in a half moon toward the inside of the reinforcing member 13.

As shown in Fig. 5, the reinforcing member 13 is formed by forming a corner portion into a slanted inclined surface portion 18 which is gradually inclined downward toward the surface of the fastener tape 4 so as not to catch other things such as a sewing machine leg. . Further, between the inclined portion 17 and the lower end portion 14 of the reinforcing member 13, an outer portion 15 extending in parallel with the outer edge 22 of the fastener tape 4 is provided, and as shown in FIG. Likewise, the back surface of the butterfly rod 11 protrudes over the entire length of the butterfly rod 11 and has a plate-shaped reinforcement member 20 having flexibility that protrudes smaller than the reinforcement member 13 onto the surface of the fastener tape 4. ), The fastener tape 4 near the side of the butterfly rod 11 is sandwiched together with the surface reinforcing member 13. In addition, forming the mesh 16 on the entire surface except the peripheral portion of the reinforcing member 13, and the same function in the same form as the box rod (10).

Referring to the box member 12, the box member 12 is surrounded by the front wall 30, the rear wall 31, the side walls 32, and the bottom wall 33, as shown in Figs. An opening 34 is formed to surround the opening, and a partition wall 35 is installed between the front wall 30 and the rear wall 31 at the center of the box member 12 to insert the box rod at the left and right sides. (38) and the butterfly rod insert 39 are provided. The partition wall 35 engages with the recess 25 of the box rod 10 and installs a latched portion 37 engaged with the locking portion 26 of the recess 25 at the lower end. In the side wall 32, the side grooves 36 are provided in the center longitudinal direction, and the reinforcing members 13 disposed on the fastener tape 4 can be inserted into the mold. The raw material of the box member 12 is the same as the raw material of the box rod 10, the butterfly rod 11, and the reinforcement member 13. As shown in FIG.

Assembling of the open-separation insertion hole 6 inserts the box rod 10 attached to the edge part of the stringer 2 to the box rod insertion part 38 of the box member 12 as shown in FIG. The recess 25 provided on the lower surface of the box rod 10 is fitted into the partition wall 35 of the box member 12, and the locking portion 26 and the locking portion 37 are locked by fixing. (12) is attached to the stringer (2). The box member 12 can also be easily attached to the box rod 10 by hand.

Referring to the operation of the opening separating insertion slot 6, as shown in Fig. 9, the same stringer 2 is inserted into the box member 12 attached to the stringer 2 on which the box rod 10 is mounted. The slider 7 is pulled down to the box member 12 and brought into contact with each other. In this state, the slider 7 and the box are held by holding the reinforcing member 13 on the butterfly rod 11 attached to the other stringer 2. After inserting into the butterfly rod insert 39 of the member 12, the slider 7 is pulled up and slid, and both fastener elements 5 are engaged as shown in FIG. The fastener chain 1 of can be obtained. In order to separate and open the fastener chain 1, the slider 7 is pulled down to the box member 12, and then the reinforcing member 13 on the side of the butterfly bar 11 is grasped so that the butterfly rod 11 is opened to the box member 12. When pulled out from the butterfly rod insertion part 39 and the slider 7, it can be isolate | separated by both stringers 2.

In the modified example of the reinforcing member 13 shown in FIG. 11, a part of the vicinity of the outer edge 22 of the fastener tape 4, for example, part A, is omitted, or a part of the inclination of the fastener is omitted. A reinforcing member 13 is formed by fastening the fastener member 13 by forming a coarse or a coarse knit structure having a larger void than that of the other portions of the fiber penetrating the fastener tape 4 in the front and back direction by pulling toward one edge of the tape 4. In the case of injection molding into the mold), the resin of the outer portion 15 of the reinforcing member 13 is easily penetrated and molded into the tissue through this sparse eye, and the fastener tape is firmly fixed to the outer portion 15 of the reinforcing member 13. It can fix with (4), and peeling from the fastener tape 4 of the reinforcement member 13 can be prevented reliably. In addition, it is assumed that the V-shaped groove 21 is not formed in the lower end portion 14 of the reinforcing member 13 in the vicinity of the butterfly rod 11 or the box rod 10. Thereby, the protruding start end of the reinforcing member 13 can be made hard to be damaged.

Further, a welded yarn formed of a synthetic fiber yarn having a melting point equal to or lower than that of the resin, which is a material of the reinforcing member 13, is formed on the A portion of the part of the outer edge 22 of the fastener tape 4 as a warp yarn, or When braiding as a warp yarn and injection molding the reinforcing member 13, the welded yarn is melted and integrated with the reinforcing member 13 so that the outer portion 15 of the reinforcing member 13 can be firmly fixed, and the reinforcing member ( It is to prevent 13 from peeling off from the fastener tape 4.

In the modified example of the reinforcing member 13 shown in Figs. 12 and 13, a plate-like protruding member 19 is continuously provided on the outer portion 15 of the reinforcing member 13, and the protruding member 19 is shown in Fig. 13. As shown in the figure, the outer edge 22 of the fastener tape 4 is wrapped and supported to extend to the rear surface to sandwich the outer edge 22 of the fastener tape 4, and the reinforcing member 13 is fastened to the fastener tape 4. ) Can be firmly fixed, and the reinforcement member 13 is reliably prevented from being peeled from the fastener tape 4.

In the modified example of the reinforcing member 13 shown in FIGS. 14 and 15, the reinforcing member 13 is injection-molded in such a manner that the lower end 14 of the reinforcing member 13 and the lower end 23 of the fastener tape 4 coincide with each other. The lower end 14 and the lower end 23 are welded to prevent the thread from loosening from the lower end 23 which is the cut end of the fastener tape 4. As a means for bringing together the lower end 14 of the reinforcing member 13 and the lower end 23 of the fastener tape 4, one method is to fasten the lower end 14 of the reinforcing member 13 to the fastener tape 4. 10) The lower end portion 14 can be extended and molded into a mold projecting downward from the butterfly rod 11, and this extension portion can be cut and matched together with the fastener tape 4 after molding. The cutting is performed by pressing cutting, and the lower end 23 of the fastener tape 4 and the lower end 14 of the reinforcing member 13 are melted by the heat generated by the pressing cutting to weld each. In addition, the inclined surface portion 18 is formed at the corner portion continuous to the inclined portion 17, the outer portion 15 and the lower end portion 14 of the reinforcing member 13, so that the reinforcing member 13 is hardly caught by another one.

In the modified example of the reinforcing member 13 shown in Fig. 16, the reinforcing members 13 and 20 having the same shape are injection molded on both the front and back surfaces of the fastener tape 4, and the fastener tape ( 4) has been narrowed. Thereby, even if the reinforcement members 13 and 20 deform | transform following the deformation | transformation of the fastener tape 4, it can make it hard to be damaged in all the parts of the reinforcement members 13 and 20. FIG.

17 and 18 differ in the modified example of the reinforcing member 13 from the first embodiment in the shape of the inclined portion 17 of the reinforcing member 13. As shown in Fig. 18, the plate-shaped reinforcing member 13 having flexibility only on the surface of the fastener tape 4 is injection molded integrally from the side of the box rod 10 or the butterfly rod 11. The shape of the reinforcing member 13 is toward the outer edge 22 near the lower end 23 of the fastener tape 4 from the upper end side of the box rod 10 or the butterfly rod 11, as shown in FIG. An inclined portion 17 inclined in a substantially straight line is provided, and the interval between the lower end portion 14 and the inclined portion 17 of the reinforcing member 13 gradually narrows toward the outer portion 15 of the reinforcing member 13, The whole is formed in the shape of a substantially triangular shape.

Finally, the thermoplastic resin used for fastening the fastener element 5, the box rod 10, the butterfly rod 11, the reinforcing members 13 and 20, the box member 12, and the upper part in the fastener chain 1. Suitably uses a polyacetal resin in consideration of moldability and color matching of each member. In order to provide flexibility to the reinforcing members 13 and 20, a soft acetal resin or a soft acetal copolymer resin is used, and in particular, the tensile strength (MPa) 45 to 60, the tensile elongation (%) 60 to 300, the melt index ( g / min) with resins falling within the range of 6 to 25, an open separation fit that can provide adequate flexibility to the reinforcement member 13 of the minimum thickness among the resin members, and impart a soft touch to the fastener chain 1. Finished with slide fasteners with slots.

According to the present invention, the reinforcing member in the open separation insert can be directly injection molded into the fastener tape to reduce product cost, and the flexibility of the reinforcing member can be enhanced to improve the flexibility of peeling or breaking, and the sewing machine at the time of sewing It is possible to provide a slide fastener with an open separation insert that can hardly break a needle, thereby improving production efficiency.

Claims (13)

A fastener element 5 is attached to opposite edges of the pair of fastener tapes 4, and the lower end of the element 5 comprises a box rod 10, a butterfly rod 11, and a box member 12. In the slide fastener with the resin opening and closing insertion hole, Protruding from the side of the box rod 10 and the butterfly rod 11, and provided with plate-shaped reinforcement members 13 and 20 protruding onto at least one surface of the fastener tape 4, the reinforcement member 13 is a fastener tape (4) has an inclined portion 17 inclined toward the outer edge 22 in the vicinity of the lower end 23, the interval between the lower end portion 14 and the inclined portion 17 of the reinforcing member 13 is a reinforcing member ( 13. A slide fastener with an open separation insert, characterized in that it is gradually narrowed towards the outer portion 15 of 13). 2. The reinforcing member 20 according to claim 1, wherein the reinforcing member 20 provided on the other side of the fastener tape 4 is smaller than the reinforcing member 13 provided on one side, and both reinforcing members 13, 20 are A slide fastener with an open separating insertion hole, characterized in that the box rod (10) and the fastener tape (4) near the side of the butterfly rod (11) are sandwiched. 2. A slide fastener with an open separating insertion hole according to claim 1, wherein the reinforcing members (13, 20) arranged on both sides of the fastener tape (4) are formed in the same shape. The slide according to claim 1, wherein the inclined portion (17) of the reinforcing member (13) is inclined substantially linearly toward the outer edge (22) of the fastener tape (4). Fasteners. 2. The slide fastener with an open separation insert according to claim 1, wherein the inclined portion (17) of the reinforcing member (13) is formed in a shape that is curved in a half moon shape concave inward. 2. The slide fastener with an open separating insertion hole according to claim 1, wherein an edge portion of the reinforcing member (13) is formed by an inclined surface portion (18) of a downward gradient toward the surface of the fastener tape (4). The outer side part 15 of Claim 1 which has the outer side part 15 extended in parallel with the outer edge 22 of the fastener tape 4 between the inclination part 17 and the lower end part 14 of the said reinforcement member 13. A slide fastener with an open separation insert. 2. The opening separation fitting opening as claimed in claim 1, characterized in that a part of the fastener tape 4 facing the outer side portion 15 of the reinforcing member 13 is coarsely formed to enable the penetration of the resin. Slide fasteners. 2. The opening and disengagement insertion slot according to claim 1, wherein a welded yarn is disposed on a portion of the fastener tape 4 facing the outer side 15 of the reinforcing member 13 to enable welding of the resin. Slide fasteners. The projection member 19 is provided continuously in the outer side part 15 of the said reinforcement member 13, and it wraps and supports the outer edge 22 of the fastener tape 4, and is squeezed. Slide fastener with open release insert. 2. A slide fastener with an open split fitting insert according to claim 1, characterized in that the lower end portion (14) of the reinforcing member (13) and the lower end portion (23) of the fastener tape (4) are joined together. 2. A slide fastener with an open separating insertion hole according to claim 1, wherein the reinforcing member (13) is formed by forming the entire surface except the peripheral portion into a reticulated net (16). A fastener element 5 is attached to the opposite side edge of the pair of fastener tapes 4, and an opening and disengagement insertion hole made of a synthetic resin made of a box rod 10 and a butterfly rod 11 at the lower end of the element 5 is provided. In the slide fastener with A plate-shaped reinforcing member 13 protruding from the side surfaces of the box rod 10 and the butterfly rod 11 and protruding onto at least one surface of the fastener tape 4 is provided, and the reinforcing member 13 is the fastener tape 4. The inclined portion 17 inclined toward the outer edge 22 of the lower end portion 23 of the lower end portion 23, and the gap between the lower end portion 14 and the inclined portion 17 of the reinforcing member 13 is the reinforcing member 13. Slide fastener with an open separation insert is characterized in that gradually toward the outer portion 15 of the.