JPS6337845Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an open product of a slide fastener having a continuous element such as a coil element, that is, a slide fastener that can be separated by providing a releasable fitting at the ends of two combined stringers. be.

Conventionally, when a continuous element is sewn along the edge of a tape, in order to stably and firmly hold the continuous element, a core string is interposed and sewn to form a stringer. Then, at the end of the stringer, the continuous element is cut and removed, and the insert pin or box pin of the releasable fitting is fitted onto the edge with the core cord sewn on, and is crimped and fixed. The box rod is fitted and fixed to the box to make the slide fastener open product.

The insert pin and box pin mentioned above are channel metal fittings with a roughly U-shaped cross section with a slit in one side wall into which the tape is inserted.The element is removed and the stringer end with the core string sewn on can be easily inserted. Channel metal fittings with a large gap between slits are used to ensure that On the other hand, on the side edge of the tape to which the core string is sewn, ears protrude laterally from the core string. The ears come into contact between both stringers when the fastener is closed to improve sealing performance. When inserting channel metal fittings such as a butterfly pin into the stringer terminal, these protruding tape ears often get caught on the metal fitting insertion end, creating an obstacle to the metal fitting installation operation. This has had an undesirable effect on the manufacturing process and product quality, such as requiring an extra amount of crimping and further causing distortion on the tape base fabric surface.

The present invention solves this conventional problem by forming a stringer using a tape having a specific weave structure, and by removing the insert pin and box pin of the detachable fitting at the end of the stringer from which the element has been removed. The tape ears that protrude laterally from the sewing core string in the area to be attached are removed to facilitate insertion of the insert pin and box pin, and the crimping fixation is performed stably and reliably, thus preventing separation and fitting. This allows the orthosis to operate smoothly.

That is, the present invention provides a tape having a weave structure in which a dense texture part, a coarse texture part, a dense texture part, and a coarse texture part are successively arranged in parallel to the base fabric part along the side edge part. A stringer with continuous elements sewn through a core string located on the upper surface of the dense and coarse parallel tissue parts is paired with another similar stringer,
In a slide fastener that can be connected and separated by a separable fitting provided at the end of a tape having a sewn core string from which each stringer element is removed, the end of one tape has a core string with its ear. A part of the part where the string is sewn is cut off to fit the curvature of the insert pin, and the insert pin is fitted and crimped into the remaining part where the core string is sewn, and the ears of the other end of the tape are cut off. The gist of this invention is a slide fastener with a releasable fitting device, characterized in that a box bar is fitted and crimped to the remaining sewn portion of the core string.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view with only the box portion of the stringers S and S' interlocked and connected by the separable stopper in cross section, and the insert pin 7 is inserted at the end of the stringer S. A box rod 6 is inserted into the box 5 and fixed to the box 5 at the end of the stringer S', and the coil element 3 at the bottom thereof is engaged by the slider 8 moved upward, and the upper part is opened. has been done.

Reference numerals 1 and 2 are tapes having woven edges to be described later, and the end surfaces thereof include a core string 11 surface and reinforcing films 4 and 4 made of thermoplastic synthetic resin, including the ears 10.
is impregnated and layered into the tape structure by heat-pressing, giving shape-retaining properties to the ends. 9 is a pull of the slider 8. Both stringers S,
On the opposite edge side of S' are tape ears 10,
The core string 11 is inserted into the coil element 3, and the tapes 1 and 2 are connected to the coil element 3 through the core string 11.
A sewing thread 12 is provided using a chain stitch sewing machine to sew on the surface, but the coil element at the end of the stringer into which the insert pin 7 and box rod 6 are inserted is cut and removed, and the core string 11 is left together with the sewing thread 12.

In FIG. 2, A is a perspective view of the box 5 into which the box rod 6 is fitted, and B is a perspective view of the insert pin 7, both of which serve as a detachable fitting.

The box bar 6 is a channel member having a substantially U-shaped cross section and having a cavity 60 inside, which is made up of an upper plate 61, a lower plate 62, and a side wall 63, and the open side edge of the upper plate 61 has a ridge 64
is provided, and a slit 65 is formed in the edge.

The box 5 has a box rod 6 fitted and fixed thereto, and an insert pin 7
A cavity 79 into which the
Slits 50 and 52 are opened on the third side.

The insert pin 7 is a channel member having a substantially U-shaped cross section and having a cavity 70 inside, which is made up of upper plates 71, 72 and a curved side wall 73, and has a ridge 74 on the open edge side of the upper plate 71.
is provided with a slit 75 at its edge and has a generally tapered shape following the curved side wall 73.

FIG. 3 is an enlarged sectional view of the stringer S, and the tape 1 is provided with a narrow dense tissue portion 13, a coarse tissue portion 14, a dense tissue portion 15, and a coarse tissue portion 16 along the side edge portion 10. It is woven so as to be continuous with the base fabric portion 1a.

The coil element 3 has an occlusal head 3a on one side, and is formed into a continuous spiral by a lower leg part 3b and an upper leg part 3c, and a core string 11 is inserted through the spiral space with a bias toward the inverted part 3b side. There is. The coil element 3 has its occlusal head 3a connected to the tape 1.
The lower leg part 36 of the coil element 3 protrudes laterally from the side edge part 10 of the tape 1,
Thin dense tissue part 13, coarse tissue part 14, dense tissue part 1
5. The double chainstitch threads 12a and 12b are positioned so as to substantially abut on the coarse tissue portion 16, and pass through the core string 11 between the adjacent upper leg portions 3c of the coil element 3, so that both coarse tissue portions of the tape 1 are connected. The core string 1 is inserted through the portions 14 and 16 and between the adjacent upper leg portions 3c.
A tangled portion is formed on the upper surface of 1, and the sewing thread engages on the upper leg portion 3c as shown at 22, so that the coil element 3, core string 11, and tape 1 are sewn and fixed together.

At this time, by adjusting the tension of the two upper threads of the double chain stitch sewing machine, the core cord 11 is penetrated and both the coarse texture parts 1
The sewing threads 12a, 12b and the dense weave portion 15 sewn to the tape 1 at positions 4, 16 form a triangular arrangement when viewed from the cross-sectional direction of the tape; however, if the tension of the sewing thread 12a close to the side edge ear portion 10 is made large, then the sewing thread 12a will be sewn at a substantially right angle to the tape 1, as shown in FIG. 3, and the other sewing thread 12b will be sewn at an angle toward the base fabric 1a of the tape 1, so that the sewing threads 12a, 12b and the dense weave portion 15 sandwiched between the sewing positions of the threads form a substantially right-angled triangle.

The stringer having the above configuration has a dense tissue part 15 that is difficult to deform by external force between the two sewn sewing threads 12a and 12b, and when a horizontal pulling force is applied, a tensile force is applied to the sewing thread 12b. At the same time, tensile force is transmitted to the sewing thread 12a through the dense tissue portion 15, resulting in tensile resistance, and especially when the sewing thread 12a is approximately perpendicular to the surface of the tape, the tensile force at the sewing point is Immediately move to sewing thread 1
Acting as a tension on 2a, both sewing threads 1
2a and 12b effectively contribute to increasing the horizontal pulling strength.

The dense tissue portions 14 and 15 of the tape 1 described above are usually plain weave, and the coarse tissue portions 14 and 16 are made of sewing thread 12.
There are fabrics such as basket weave, ribbed weave, herring twill weave, etc., which have a thread density that does not cause deformation such as puckering of the tape 1 when the tapes a and 12b are inserted.

Naturally, stringer S' has exactly the same structure.

Fig. 4 is a slightly enlarged front view similar to Fig. 1 with a portion cut away, showing the state in which the aforementioned insert pin and box pin are inserted and fixed into the terminal portions of the stringers S and S'; The figure is an enlarged sectional view of the end portion of the stringer S to which the insert pin is fixed.

As mentioned above, the core cord 11 of the part where the coil element 3 is sewn is inserted into the space formed by the upper leg, the reversed part, and the lower leg of the coil element 3, and the sewing thread 12 by double chain stitching It is sewn to the edges of tape 1 and 2, but the edge 1 of the tape
0 protrudes from the side edge of the core string 11, so that when the fastener is closed, both stringers S,
The tape edges of S' are brought close together, preferably in contact, to improve sealing performance.

However, when inserting the end portions of the stringers S, S' with the coil element 3 cut and removed into the cavities 70, 60 of the insert pin 7 and the box pin 6 as shown in FIG. 10 is the cavity 70, 60
It easily gets caught on the rim of the mouth, making it difficult to perform the insertion process smoothly, and even if it is inserted into the cavities 70, 60, the sewn part of the core string 11 may be damaged due to the tightening of the insert pin 7 and the box pin 6, and the uneven pressure. The tight adhesion tends to be insufficient and the ear part 1
The folding of the tape 0 generates a tensile force in the direction of the tapes 1 and 2, and even if the reinforcing film 4 is layered, the end surface of the tape is distorted and its flatness is impaired.However, in the present invention, By removing this ear portion 10, the above-mentioned problem was solved.

In particular, in the case of the insert pin 7, the surface that the tape side edge contacts is tapered and curved, so in order to fit this, it is necessary to cut not only the ear part 10 but also the part to which the core string 11 is sewn. , insertion of the insert pin 7 and crimping and fixing are performed satisfactorily. If the above-mentioned cutting is carried out using a welding method such as ultrasonic waves or laser, the cut edges will be fused together to prevent fraying, thereby preventing a decrease in the horizontal drawing strength of the section.

Further, as described above, the weave structure along the tape selvage 10 in the area where the core string 11 is sewn is attached to the selvage 10,
Since the dense tissue section 13, coarse tissue section 14, dense tissue section 15, and coarse tissue section 16 are arranged, the coil element 3 can be sewn and fixed well by double chainstitching, and the separable insert can be easily fixed. It is possible to prevent a decrease in the horizontal pulling strength of the tape 3 at the ear cut portion where the insert pin 7 and the box pin 6 are fitted.

As explained above, according to the present invention, in a slide fastener having a continuous element, the ears at the part where the core string is sewn in the part where the releasable fitting endpiece of each stringer is fixed are removed, and the insert pin and box pin are fitted. By doing this, these metal fittings are stably and firmly crimped and fixed without tilting with respect to the tape surface.Therefore, there is no distortion to the continuous element part that follows, and the insertion and removal operations are extremely smooth. This is something that can be done.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure is a front view of the main part with a part cut away, Fig. 2 is a perspective view of the separable insert, Fig. 3 is an enlarged sectional view of the stringer, and Fig. 4 is a partially cutaway and partially sectional view. FIG. 5 is a sectional view of the insert pin portion of the stringer end. 1, 2...tape, 3...coil element,
4... Reinforcement film, 5... Box, 6... Box rod, 7
... Butterfly pin, 8 ... Slider, 10 ... Ear part, 1
1... core string, 12... sewing thread, 13, 15... dense tissue part, 14, 16... coarse tissue part, S, S'... stringer.

Claims (1)

[Scope of utility model registration request] A tape 1 having a woven structure in which a dense tissue portion 13, a coarse tissue portion 14, a dense tissue portion 15, and a coarse tissue portion 16 are arranged in parallel along the side edge portion 1 and continue to the base fabric portion 1a.
The stringer S, in which the continuous element 3 is sewn and fixed via the core string 11 located on the upper surface between the dense tissue part 13 and the coarse tissue part 16, is sewn in the same way to the tape 2 having the same woven structure. A pair of stringers S' having fixed continuous elements is formed, and the stringers S and S' can be connected and separated by a separable fitting provided at the end of the tape, which has a sewing core string 11 with the elements removed. In the slide fastener combined with the slide fastener, the end portion of one tape 1 is cut off along with the ear portion 10 of the part where the core string 11 is sewn to fit the curvature of the butterfly pin, and the remaining part where the core string is sewn is removed. An insert pin is fitted and crimped to fix the end of the other tape 2, and a box pin 6 is fitted and crimped to the end portion of the other tape 2 where the ear part 10 is removed and the remaining core string is sewn. Features a slide fastener with a releasable fitting.