JP4176073B2 - Slide fastener stop - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide fastener in which a synthetic resin coil-type and zigzag-type linear fastener element is attached to one side edge of a fastener tape, and a stopper of an upper or lower stop of a hidden slide fastener.

  Conventionally, various types of stoppers have been proposed for the stoppers of the upper stopper and the lower stopper in the synthetic resin coil type or zigzag type linear slide fastener and the hidden slide fastener. For example, as shown in FIG. 10, a synthetic resin piece having a circular cross section is formed on the back surface near the tape over the heads of a plurality of elements at the end of the line fastener element row so that the synthetic resin piece is A bay formed by bending the end located at the end of the element row to the surface to provide a bent portion, the end surface of the bent portion being lower than the surface of the element, and the bent portion formed on the side of the element head at the end of the element row A stop portion of a slide fastener welded to a meshing surface that has entered is known.

In addition, as shown in FIG. 11, a fixed length filament is inserted into a coil-type linear fastener element array made of synthetic resin, and the inserted filament and the fastener element are ultrasonically welded to form a bottom stop. It has been known.
Japanese Utility Model Publication No. 56-51773 China Utility Model Registration No. 1255468.6 Manual

  The above-mentioned stop shown in FIG. 10 presses and welds a synthetic resin piece to the lower surface of the head of the linear fastener element row by ultrasonic processing and bends the end toward the surface of the element to make the element head The synthetic resin piece is extremely troublesome to weld and cannot be manufactured at low cost. Since the synthetic resin piece is welded to the surface of the element, there is a problem that it may be peeled off during use.

  In addition, the bottom stopper shown in FIG. 11 has a filament inserted in a synthetic resin linear fastener element array welded to the fastener element over its entire length, so that the sewing thread sewn to the fastener element at the bottom stopper part is ultrasonic. There is a problem that it is deteriorated by the welding process, and the sewing thread is cut by the load accompanying opening and closing of the slide fastener, the fastener chain is broken and cannot be used for a long time.

  The present invention has been invented in view of the above-mentioned problems, and the invention according to claim 1 is directed to a slider in a normal type or hidden type slide fastener equipped with a line fastener element row made of synthetic resin. After inserting a synthetic resin rod into the linear fastener element for the top and bottom stoppers to prevent pull-out, the part is welded, and the stopper does not affect the removal loss or deterioration phenomenon. The main object is to provide a slide fastener stop that can be manufactured well and inexpensively.

  In addition to the object of the invention of claim 1, the invention described in claim 2 welds the outer end portion of the rod-like body inserted into the end portion of the linear fastener element row to form the stop portion. As a result, the heat generated when the linear fastener element row and the rod-shaped body are welded to the non-welded portion of the stopper, that is, the inner end side of the rod-shaped body, is not excessively applied to the sewing thread. It is an object to provide a stop portion of a slide fastener that can prevent the yarn from becoming brittle.

  In addition to the object of the invention described in claim 1, the invention described in claim 3 includes an outer end portion and an inner end portion of the rod-shaped body inserted into the end portion of the linear fastener element row to form the stop portion. An object of the present invention is to provide a stop portion of a slide fastener capable of preventing the rod-like body from being pulled out from both ends by welding to form a welded portion.

  In addition to the object of the invention described in claim 2 or 3, the invention described in claims 4 to 7 specifies the relationship between the first welded portion, the second welded portion, and the non-welded portion in the stop portion, and has an excellent function. It is an object to provide a stop portion of a slide fastener provided with a stop portion capable of exhibiting.

  In addition to the object of the invention described in claim 8, the invention described in claim 8 is a slide fastener in which a rod-shaped body made of synthetic resin is arranged in an ideal shape in the linear fastener element row, and a top stopper can be easily produced. The purpose is to provide a stop.

  In addition to the object of the invention described in claim 9, the invention described in claim 9 is a slide fastener in which a rod-shaped body made of synthetic resin is arranged in an ideal shape in the linear fastener element row, and a bottom stopper can be easily produced. The purpose is to provide a stop.

  In order to achieve the above object, the invention according to claim 1 of the present invention is such that a linear fastener element row 3 formed from a monofilament made of synthetic resin is attached to one side edge of the fastener tape 7, and the fastener element row 3 The plurality of fastener elements 4 located at the ends of the fastener elements, where the fastener element refers to one pitch element in the fastener element row, and the meshing heads of the plurality of fastener elements 4 in the meshing state or the non-meshing state A rod-shaped body 14 made of synthetic resin, for example, a monofilament is inserted into the meshing space 23 positioned on the back side of the fastener 20, and the fastener element 4 and the rod-shaped body 14 are welded on the end side of the fastener chain 1 into which the monofilament is inserted. A welding portion 15 is provided, and the fastener element 4 and the rod-shaped body 14 are welded. The stop portion 10 of the slider 27 which features a non-welded portion 16 is characterized in that to form the stop portion 10 of the slider 27 without it is an main components.

  In addition to the structure of the invention of the first aspect, the invention described in claim 2 is welded to the outer end portion 17 of the rod-like body 14 such as a synthetic resin monofilament inserted into the linear fastener element row 3. It is a stop part of the slide fastener which provided.

  In addition to the structure of the invention described in claim 1, the invention described in claim 3 is a welded portion 15 on the outer end portion 17 of a rod-like body 14 such as a synthetic resin monofilament inserted into the linear fastener element row 3. 1 welding part 15a was provided, the 2nd welding part 15b was provided as the welding part 15 in the inner end part 18 of the rod-shaped body 14, and the non-welding part 16 was provided between the 1st welding part 15a and the 2nd welding part 15b. It is a stop part of a slide fastener.

  In addition to the configuration of the invention described in claim 2, the invention described in claim 4 is such that the welded portions 15, 15a formed on the rod-shaped bodies 14 inserted into the linear fastener element row 3 are half the length of the rod-shaped bodies 14. It is the stop part of the slide fastener formed so that it might become the following.

  In the invention according to claim 5, in addition to the configuration of the invention according to claim 3, the first welded portion 15a formed on the rod-like body 14 inserted into the linear fastener element row 3 is the length of the second welded portion 15b. It is a stop part of the slide fastener formed so that it may become above.

  According to the sixth aspect of the invention, in addition to the configuration of the third aspect of the invention, the non-welded portion 16 formed on the rod-like body 14 inserted into the linear fastener element row 3 has the length of the first welded portion 15a and the first number. 2 It is a stop part of the slide fastener formed so that it might become below the sum with the length of the welding part 15b.

  In the seventh aspect of the invention, in addition to the configuration of the third aspect of the invention, the first welded portion 15a formed on the rod-like body 14 inserted into the linear fastener element row 3 is the length of the second welded portion 15b. And it is a stop part of the slide fastener formed so that it might become longer than the length of the non-welding part 16. FIG.

  In addition to the structure of the invention described in claim 1, the invention described in claim 8 includes a rod-like body 14 such as a monofilament made of synthetic resin in the end of the linear fastener element row 3 in a state in which the fastener chain 1 is separated from left and right. It is a stop part of a slide fastener that is inserted into the part and welded to the fastener element 4 and the rod-like body 14 to form the top stopper 12.

  According to the ninth aspect of the present invention, in addition to the configuration of the first aspect of the invention, a rod-like body 14 such as a synthetic resin monofilament is inserted into the end of the linear fastener element row 3 in a state where the fastener chain 1 is engaged. In addition, it is a stop portion of the slide fastener in which the fastener element 4 and the rod-shaped body 14 are welded to form the bottom stop 11.

  As an effect of the invention of this application, the invention according to claim 1 is the invention in a plurality of fastener elements that are mounted on one side edge of a fastener tape with a linear fastener element row made of synthetic resin and are located at the end of the fastener element row. A synthetic resin rod-shaped body is inserted into the meshing space located on the back side of the meshing head, and a plurality of fastener elements of the plurality of fastener elements into which the rod-shaped bodies are inserted are welded to the rod-shaped body to weld portions. The following effects are obtained by forming the slider stop as a non-welded portion without welding the fastener elements other than the fastener element to which the rod-shaped body of the plurality of fastener elements into which the rod-shaped body is inserted is welded. Play.

  According to the present invention, since the welded portion is formed on the stop portion, the stop portion can be firmly welded and integrated into a solid stop portion. Moreover, by forming a non-welded part in the stop part, the thread at the inner end part of the stop part does not cause deterioration due to heat generation during ultrasonic welding, and is caused by load concentration on the sewing thread that occurs when the slide fastener is opened and closed. Since the yarn does not break, it can withstand long-term use, can be finished into a high-quality stop, and has the effect of expanding the sales channel.

  In addition to the effect of the invention described in claim 1, the invention described in claim 2 is provided with a welded portion at the outer end portion of the rod-shaped body, whereby a sewing thread on the non-welded portion side, that is, the inner end portion side of the rod-shaped body. Is prevented from being weakened by heat during welding, and the sewing thread on the inner end side of the stop where the load is most applied when the slider moves toward the stop and the slide fastener is released There is an effect to prevent cutting.

  In addition to the effect of the invention described in claim 1, the invention described in claim 3 provides the first welded portion as the welded portion at the outer end portion of the rod-shaped body and the second welded portion as the welded portion at the inner end portion of the rod-shaped body. And the non-welded portion is provided between the first welded portion and the second welded portion, so that both ends of the rod-shaped body, in particular, the inner end of the rod-shaped body are separated from the line fastener element row It is possible to prevent the slide fastener from being removed from the element when the slide fastener is opened.

  In addition to the effect of the invention described in claim 2 or 3, the invention according to claims 4 to 7 is such that the length of the first welded portion in the stop portion is less than half the length of the rod-like body, and the length of the second welded portion. The length of the non-welded portion is equal to or less than the sum of the length of the first welded portion and the length of the second welded portion, and the length of the first welded portion is equal to the length of the second welded portion and the non-welded portion. By forming a welded part of various conditions, such as forming it longer than the length of the part, it is possible to effectively and appropriately weld the linear fastener element row and the rod-like body, and to exert an excellent function as a stop part. .

  In the invention described in claim 8, in addition to the effect of the invention described in claim 1, the linear fastener element is isolated by inserting the rod-like body into the isolated linear fastener element row to form an upper stopper. Adopting a bar-shaped body for the fastener stringer in the state, it is possible to easily produce a top stopper.

  According to the ninth aspect of the invention, in addition to the effect of the first aspect of the invention, the rod-like body is inserted into the meshed linear fastener element row to form a bottom stop, so that the linear fastener element meshes. The effect of the present invention is extremely remarkable, such as the effect of easily adopting a rod-like body for the fastener chain in such a state and easily producing a bottom stop.

  The stop portion of the slide fastener in the present invention is a stop portion 10 formed from an upper stopper 12 and a lower stopper 11 attached to the upper and lower ends of the slide fastener as shown in FIG. 1, and the slide fastener is a monofilament such as polyamide or polyester. Are wound in a coil shape to form a coil-shaped fastener element 5, and the monofilament is bent in a zigzag shape to form a zigzag-shaped fastener element 6, thereby forming the linear fastener element row 3. The linear fastener element row 3 is sewn to one side edge of the fastener tape 7 with a sewing thread 8 to finish a normal type coil slide fastener or zigzag slide fastener. Further, the linear fastener element row 3 can be sewn with a sewing thread 8 onto the surface of the folded portion 25 formed on one side edge of the fastener tape 7 to finish a hidden slide fastener.

  The stop portion 10 is formed by cutting a rod-like body 14 made of a polyamide or polyester monofilament of the same material as the fastener element 4 into an appropriate length according to the size of the slide fastener. 3 is inserted into the meshing space portion 23 existing on the back side of the meshing head 20 of the plurality of fastener elements 4. The meshing space portion 23 is a space into which the bulging portion of the mating head 20 of the mating fastener element 4 enters when the opposing fastener elements 4 of the pair of fastener stringers 2 mesh with each other, and the meshing space portion 23 is a fastener. Since the element 4 exists in both the meshing state and the non-meshing state, the rod-shaped body 14 is inserted using the meshing space portion 23. The rod-shaped body 14 inserted into the meshing space portion 23 has an outer end portion 17 located on the end portion side of the linear fastener element row 3 and an inner side of the linear fastener element row 3 on the side opposite to the outer end portion 17. The fastener element 4 having a plurality of pitches located on the outer end 17 side and the rod-like body 14 are welded to each other by ultrasonic welding using an ultrasonic machine. The fastener element 4 of several pitches located on the inner end 18 side and the rod-like body 14 are not welded to form a non-welded portion 16, and a stopper portion for the upper stopper 12 or the lower stopper 11 for the slider 10 is formed.

  The upper end side of the stop portion 10 is a portion where a load such as a pulling force or a twisting force concentrates on the sewing thread 8 when the linear fastener element row 3 is engaged or separated by sliding of the slider 27. Accordingly, the non-welded portion 16 of the rod-like body 14 is formed on the upper end side of the stopper portion 10 and the welded portion 15 is formed on the lower end side. The sewing thread 8 in the vicinity of the non-welded portion 16 is not affected at all by the heat at the time of ultrasonic welding, so that it does not deteriorate and the sewing thread 8 is not cut by the opening / closing operation of the slide fastener. Further, since a load is not so much applied to the lower end side of the stop portion 10, even if the sewing thread 8 is deteriorated due to heat during ultrasonic welding, there is no fear of breaking, and the welded portion 15 causes the fastener element 4 and the rod-like body 14 to Is a stop portion of a slide fastener in a form that can be formed into a solid stop portion 10 by welding and integration.

  Further, as shown in FIG. 8, the stop portion of the present invention has a rod-like body 14 inserted into the end portion of the meshed linear fastener element row 3, and the fastener element 4 and the rod-like shape are inserted into the outer end portion 17 of the rod-like body 14. A first welded portion 15 a is provided as a welded portion 15 that welds the body 14, and a second welded portion 15 b as a welded portion 15 that welds the fastener element 4 and the rod-shaped body 14 to the inner end portion 18 of the rod-shaped body 14. Both end portions of the rod-shaped body 14 inserted into the meshing space portion 23 are formed, and a non-welded portion 16 that does not weld the fastener element 4 and the rod-shaped body 14 is formed between the first welded portion 15a and the second welded portion 15b. 17 and 18 are formed so as not to be removed, and a non-welded portion 16 slightly bends even if it collides with the slider 27 or the stop portion 10 so as to absorb the shock and relieve the shock. Formation Rukoto can also.

  1-4, the fastener chain 1 is formed by winding a polyamide or polyester monofilament in a coil shape to form a coiled fastener element 5, and this coiled fastener element. 5 to form a line fastener element row 3 by inserting a core string 9 into the upper surface of one side edge of the fastener tape 7 to form a double fastener 3 thread. The continuous fastener chain 1 is formed by sewing and attaching with the sewing thread 8. The continuous fastener chain 1 is cut into the coil-shaped fastener element 5 for each predetermined length, and a space portion where the coil-shaped fastener element 5 does not exist is provided on the upper surface of one side edge of the fastener tape 7. To complete the unit length fastener chain 1.

  A rod-like body 14 made of a monofilament made of the same material as the coiled fastener element 5 is provided in a predetermined space in the meshing space 23 existing on the back side of the meshed head 20 in a state where the coiled fastener element 5 is engaged with one end of the fastener chain 1. The rod-shaped body 14 is cut into a length, and ultrasonic welding is performed by an ultrasonic machine. Ultrasonic welding is performed on the outer end 17 side of the inserted rod-shaped body 14, that is, the lower end of the stopper 10. Only this portion is welded to the coiled fastener element 5, and ultrasonic welding is performed from the front side of the coiled fastener element 5, thereby forming a welded portion 15 slightly recessed on the surface of the element 5. Further, the inner end 18 side of the rod-shaped body 14, that is, the upper end portion of the stopper 10, forms the bottom stopper 11 by forming the non-welded portion 16 without welding to the coiled fastener element 5. The slider stop 10 is completed. In this embodiment, the meshing space portion 23 is surrounded by the meshing head 20, the upper and lower leg portions 21 connected to the upper and lower ends of the meshing head 20, and the core string 9 inserted into the element 5. Space.

  When the fastener chain 1 is opened by the slider 27 as shown in FIG. 4, the slider stopper 10 forms the stopper 10 when the slider 27 reaches the stopper 10 while separating the coiled fastener element 5. Since the rod-like body 14 is inserted into the meshing space 23 in the plurality of fastener elements 4, the sliding of the slider 27 is stopped without separation. At this time, since the sewing thread 8 present in the non-welded portion 16 is not deteriorated without being subjected to the heating of ultrasonic welding, the coiled fastener element 5 is firmly fixed. In addition, the welded portion 15 of the stopper 10 is formed by welding the left and right coil-shaped fastener elements 5 together with the rod-like body 14, thereby forming a strong and firm bottom stop 11, and heating the sewing thread 8 slightly when ultrasonic welding is performed. Even if it is made, it is a very small range, and is a bottom stop 11 in which the sewing thread 8 is not broken by the opening and closing operation of the slide fastener.

  For example, the length of the monofilament rod-like body 14 is about 7 mm, and the length of the welded portion 15 is preferably about 3 mm, and the length of the non-welded portion 16 is preferably about 4 mm.

  Although not shown, the same type of stop can be formed in a woven slide fastener that is woven by weaving the coiled fastener element on one side of the fastener tape at the same time as weaving the fastener tape. Further, in the knitted slide fastener knitted by knitting the warp knitted tape with the coil-shaped fastener element on the one side of the tape, a stop portion having the same form can be formed.

  The slide fastener of Example 2 shown in FIG. 5 relates to a hidden slide fastener in which the coiled fastener element 5 is not visible from the surface of the fastener tape 7, and the fastener tape 7 is inverted on one side to form a folded portion 25, A core string 9 is inserted into the coiled fastener element 5 on the surface of the folded portion 25 and is sewn with a sewing thread 8 to form a continuous hidden fastener chain 1. The coil-shaped fastener element 5 in the continuous hidden fastener chain 1 is cut at a predetermined interval to provide a space portion, and the fastener tape 7 in the space portion is cut to produce a hidden fastener chain 1 having a predetermined length.

  A rod-shaped rod having a predetermined length formed from a monofilament made of the same material as the coiled fastener element 5 into the meshing space 23 existing on the back side of the meshing head 20 in a state where the meshing head 20 is meshed with one end of the hidden fastener chain 1. The hidden fastener chain is formed by inserting the body 14 and forming the welded portion 15 in which only the outer end portion 17 side is welded by ultrasonic welding and the non-welded portion 16 in which the inner end portion 18 side is not welded. 1 is formed with a bottom stop 11 to form a slider stop 10. The operation and function are the same as in the previous example. In this embodiment, the meshing space portion 23 includes the meshing head 20, the upper and lower leg portions 21 connected to the upper and lower ends of the meshing head 20, and the side ends of the fastener tape 7 sandwiched between the upper and lower leg portions 21. A space surrounded by edges.

  The slide fastener of Example 3 shown in FIG. 6 is a zigzag type slide fastener using a zigzag fastener element 6, and a zigzag fastener element 6 is formed by bending a resin monofilament in a zigzag shape. The continuous fastener chain 1 is formed by sandwiching and attaching the zipper-shaped fastener element 6 between the front and back sides of the fastener tape 7 from the front and back, and sewing between the leg portions 21 with the sewing thread 8. A zigzag fastener element 6 is cut from the continuous fastener chain 1 at intervals of a predetermined length to provide a space portion, and a fastener tape 7 in the space portion is cut to produce a unit length fastener chain 1.

  A predetermined length formed from a monofilament of the same material as the zigzag fastener element 6 in the engagement space portion 23 existing on the back side of the engagement head 20 in a state where the left and right zigzag fastener elements 6 are engaged with each other at the end of the fastener chain 1. The rod-shaped body 14 is inserted, and the outer end 17 side of the rod-shaped body 14 is ultrasonically welded from the front and back of the fastener element 4 to form a welded portion 15 in which the front and back surfaces of the element 6 are slightly recessed, and the inner end The non-welded portion 16 is formed on the portion 18 side without welding to form the stopper 10 as the bottom stopper 12. The operation and function are the same as in the previous example.

  Although not shown, a zigzag-type slide fastener may be formed by superposing zigzag-shaped fastener elements and sewing and attaching them on one side edge of the fastener tape with a sewing thread.

  The slide fastener of Example 4 shown in FIG. 7 relates to the slider stopper 10 of the top stopper 12 formed at the end of the coiled fastener stringer 2. The upper stopper 12 is made of the same material as the coiled fastener element 5 in the upper end portion of the fastener stringer 2, for example, in the meshing space portion 23 existing on the back side of the meshing head 20 of the coiled fastener element 5 at the end portion as shown in FIG. A rod-shaped body 14 of a predetermined length formed from a monofilament is inserted, and the coil-shaped fastener element 5 and the rod-shaped body of several pitches on the outer end 17 side of the rod-shaped body 14, that is, the upper end of the stopper 10 are inserted. 14 is ultrasonically welded to form the welded portion 15, and the coil-like fastener element 5 and the rod-like body 14 of several pitches on the inner end portion 18 side, that is, the lower end portion of the stopper portion 10 are not welded. The stopper 10 is a top stopper 12 having a non-welded portion 16 formed thereon.

  The top stopper 12 may be installed on the left and right fastener stringers 2, but may be installed on the fastener stringer 2 on one side. The top stopper 12 may be formed so that the meshing head 20 of the fastener element 4 that is the meshing partner cannot enter between the meshing heads 20 on the upper 10 side. Since the finished top stopper 12 is not deteriorated by heating the sewing thread 8 at the non-welded portion 16, the coiled fastener element 5 is firmly fixed, and the welded portion 15 includes the coiled fastener element 5 and the rod-like body 14. Can be finished into a solid and solid top stopper 12 and can be effectively used as a stopper 10 for the slider.

  The slide fastener of Example 5 shown in FIGS. 8 and 9 is formed by fastening the coiled fastener element 5 to the side edge of the fastener tape 7 with the sewing thread 8 to form the fastener chain 1 having the linear fastener element row 3. The formed fastener chain 1 has a rod-like body 14 formed of a monofilament made of synthetic resin in the engagement space portion on the back side of the engagement head 20 at the end portion of the linear fastener element row 3 in a state where the fastener elements 5 are engaged. It is cut into a predetermined length and inserted, and the welded portion 15 is formed by ultrasonic processing or the like.

  The welded portion 15 is provided with a first welded portion 15 a in which several fastener elements 4 and the rod-shaped body 14 are welded on the outer end 17 side of the rod-shaped body 14, and a plurality of welded portions 15 are provided on the inner end 18 side of the rod-shaped body 14. A second welded portion 15b in which the fastener element 4 and the rod-like body 14 are welded is provided. At this time, the second welded portion 15b also welds the fastener elements 4 outside the inner end 18 of the rod-like body 14 to form the second welded portion 15b.

  The welded portion 15 formed at the end of the linear fastener element row 3 is provided with a first welded portion 15a on the outer end 17 side of the rod-like body 14 and a second welded portion 15b on the inner end 18 side. A non-welded portion 16 that does not weld the fastener element 4 and the rod-shaped body 14 is provided between the welded portion 15a and the second welded portion 15b. Thus, the stop formed from the 1st welding part 15a, the 2nd welding part 15b, and the non-welding part 16 is used as the bottom stopper 11 of a slide fastener, and the fastener element is provided in the bottom stopper 11 by providing the non-welding part 16 4 and the rod-shaped body 14 are not welded excessively, and the welded rod-shaped body 14 and the fastener element 4 are not weakened and broken. Further, even if the bottom stop 11 does not become rigid and the slider 27 crashes, the impact is well absorbed and relaxed to prevent breakage.

  Furthermore, as shown in FIG. 9, when the fastener element 4 is separated into the left and right and the fastener chain 1 is opened, the inner end 18 of the rod-like body 14 is welded. The element 4 is not pulled out of the meshing space 23 and no meshing failure occurs when the fastener element 4 is meshed.

  Here, the length relationship between the first welded portion 15a, the second welded portion 15b, and the non-welded portion 16 in the length direction of the rod-shaped body 14 is that the first welded portion 15a is the longest, and the second welded portion 15b is The non-welded part 16 has the same length. However, in the portion where the rod-like body 14 is inserted into the fastener element 4, the first welded portion 15a is the longest, the non-welded portion 16 is then long, and the second welded portion is shorter.

As a specific example, the length B of the rod-shaped body 14 is 7 mm, and the total length A of the welded portion is 8 mm. The length a ₁ of the first weld part 15a is 4 mm, the length of the second welded portion a ₃ are 2 mm, the length a ₂ of the non-weld portion 16 is 2 mm. The second welded portion 15b is welded to the rod-like body 14 in a length of 1 mm out of a length of 2 mm.

  The length relationship of each part is not limited to the said length, For example, the length of the 1st welding part 15a and the 2nd welding part 15b is made into the same length, and the length of the non-welding part 16 is made into the 1st welding part 15a and the 1st welding part 15a. It may be longer than each of the two welded portions 15b and the same length as the sum of the first welded portion 15a and the second welded portion 15b.

As a specific example, the length B of the rod-like body 14 is 7 mm, the welded portion total length A and 8 mm, 2 mm and a length a ₁ of the first weld part 15a, the second weld portion the length a ₃ 2 mm The length a ₂ of the non-welded portion 16 is 4 mm. The second welded portion 15b is welded to the rod-like body 14 in a length of 1 mm out of a length of 2 mm.

  In the specific example, the length of the entire welded portion is equal to or longer than the length of the non-welded portion, and the length of the non-welded portion 16 is equal to or shorter than the sum of the first welded portion 15a and the second welded portion 15b. Thereby, the welding strength of the rod-shaped body 14 and the fastener element 4 is ensured.

  Preferably, the first welded portion 15a in which the outer end portion 17 of the rod-shaped body 14 and the fastener element 4 are welded is made the longest. As a result, the first welded portion 15a is located at a position where the load is least likely to be applied when the slider 27 abuts the lower stopper 11 and the left and right fastener elements 4 adjacent to the lower stopper 11 are pushed and spread. Breakage of the stop 11 is prevented.

  The dimensional relationship in the width direction between the rod-shaped body 14 and the first and second welded portions 15a, 15b is such that the width of each welded portion 15a, 15b is wider than the width of the rod-shaped body 14, and the welded portions 15a, 15b The width of the rod-like body 14 is within the width.

  As a specific example, the diameter of the rod-shaped body 14, that is, the width is 6 mm, whereas the width of each welded portion 15a, 15b is 10 mm. The rod-like body 14 is pressed and deformed at the time of welding with the fastener element 4, and the width of the rod-like body 14 is larger than the above dimensions, so that the welded portions 15 a and 15 b can be firmly welded to the fastener element 4 in a wide range.

  The stop part in the slide fastener of the present invention is a coil type formed from a polyamide or polyester monofilament, a zigzag type linear fastener element is attached to one side edge of the fastener tape, and finished into a normal type or a hidden type slide fastener, These slide fasteners have upper and lower stops, and the stoppers are attached by attaching the fastener element to the fastener tape due to the sliding load of the slider. In addition, since the stopper does not use any metal and has no burr on the surface, it can be used particularly suitably for a slide fastener for clothes.

It is a front view of a normal type slide fastener. It is a front view of the bottom stop in a slide fastener same as the above. It is AA sectional drawing of FIG. 2 of the bottom stop of a slide fastener same as the above. It is the partially cutaway front view which showed the effect | action of the slide fastener same as the above. It is sectional drawing of the bottom stop in a hidden type slide fastener. It is sectional drawing of the bottom stop in a zigzag type slide fastener. It is a front view which shows a top stopper in a normal type fastener stringer. It is a front view of the bottom stop in another normal type slide fastener. It is the partially cutaway front view which showed the effect | action of the slide fastener same as the above. It is sectional drawing of the bottom stop of a well-known slide fastener. It is a front view of the bottom stop of other well-known slide fasteners.

Explanation of symbols

3 Line fastener element row 4 Fastener element 5 Coiled fastener element 6 Zigzag fastener element 7 Fastener tape 8 Sewing thread 10 Stop part 11 Bottom stop 12 Top stop 14 Rod-like body 15 Weld part 15a First weld part 15b Second weld part 16 Non-welded portion 17 Outer end portion 18 Inner end portion 20 Engagement head portion 23 Engagement space portion 27 Slider

Claims (9)

  A meshing space portion located on the back side of the meshing head 20 of the plurality of fastener elements 4 mounted on one side edge of the fastener tape 7 with the linear fastener element row 3 made of synthetic resin on one side edge of the fastener tape row 3 23, a synthetic resin rod-shaped body 14 is inserted, and four fastener elements among the plurality of fastener elements 4 into which the rod-shaped body 14 is inserted are welded to the rod-shaped body 14 to provide a welded portion 15, thereby The fastener element 4 other than the fastener element 4 to which the rod-like body 14 of the plurality of fastener elements 4 into which the body 14 is inserted and the rod-like body 14 are not welded, and the stopper 10 for the slider 27 is used as the non-welded portion 16. A stop portion of a slide fastener, characterized in that is formed.   The stop portion of the slide fastener according to claim 1, wherein welded portions 15 and 15 a are provided on the outer end portion 17 of the rod-like body 14.   A first welded portion 15a is provided as the welded portion 15 at the outer end portion 17 of the rod-shaped body 14, a second welded portion 15b is provided as the welded portion 15 at the inner end portion 18 of the rod-shaped body 14, and the first welded portion 15a and the second welded portion 15a. The stop part of the slide fastener of Claim 1 which provides the non-welding part 16 between the welding parts 15b.   The stop portion of the slide fastener according to claim 2, wherein the length of the welded portions 15, 15 a in the length direction of the rod-shaped body 14 is formed to be half or less of the length of the rod-shaped body 14.   The stop part of the slide fastener of Claim 3 formed in the length of the 1st welding part 15a in the length direction of the rod-shaped body 14 more than the length of the 2nd welding part 15b.   The length of the non-welded part 16 in the length direction of the rod-like body 14 is formed to be equal to or less than the sum of the length of the first welded part 15a and the length of the second welded part 15b. Department.   The stop portion of the slide fastener according to claim 3, wherein the length of the first welded portion 15a in the length direction of the rod-like body 14 is longer than the length of the second welded portion 15b and the length of the non-welded portion 16. .   The slide fastener according to claim 1, wherein the bar-like body is formed by inserting the rod-like body into the isolated linear fastener element row to form an upper stopper.   The slide fastener according to claim 1, wherein the rod-like body is formed by inserting the rod-like body into the meshed linear fastener element row and forming a bottom stop.

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