JPH0221932Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention uses an ultrasonic welder or high-frequency welder to attach the openings of raincoats, anoracks, and various bags made of thermoplastic synthetic resin sheets. This invention relates to a slide fastener with a releasable fitting that can be attached to a joint.

[Conventional technology]

Conventional slide fasteners with separable inserts are
It is well known that a reinforcing piece is attached to the attachment part of the detachable fitting to strengthen the attachment of detachable fitting members such as the insert pin and box rod, and to facilitate the operation of the detachable fitting. When attaching this slide fastener to a synthetic resin sheet, such as a raincoat, the opening/closing edge of the raincoat is heated using heat welding means to cover the top surface of the fastener tape and reinforcing piece. It can be attached by attaching it.

[Problem that the invention attempts to solve]

By the way, the reinforcing piece has a multilayer structure consisting of a welding layer with a low melting point and a surface layer with a higher melting point than the layer, and the surface layer is made of, for example, a film of nylon 6 or nylon 66, or a thread of the same material. Generally, taffeta is used, while fastener tapes are woven or knitted with, for example, cotton in the warp and textured yarn in the weft, or synthetic. When welding to a resin sheet adherend using a high-frequency welder or an ultrasonic welder, the other parts of the tape except for the reinforcing tape to which the reinforcing piece is attached will have fluff and weave or stitches of the adherend. The molten resin penetrates and adheres, and is attached to the adherend, but as mentioned above, the surface layer of the reinforcing piece does not melt, and there are no gaps or fuzz for the molten resin to penetrate, so it is difficult to reinforce the tape part of the reinforcing piece. There was a drawback that the adherend was not welded on one side.

To solve this problem, as shown in FIG. 6, a reinforcing piece 6 is attached to the surface of the fastener tape 2 opposite to the surface to which the adherend is welded, and the adherend made of a thermoplastic synthetic resin sheet is attached to the fastener tape. It is conceivable to improve the welding so that it can be welded over the entire length.

However, among slide fasteners with releasable fittings, a fastener element including a string such as a core string or a splicing string is attached to one side edge of the fastener tape. In the case where the members constituting the release fitting are attached, the reinforcing piece will be attached to the back side of the fastener tape where there is no string, and the surface of the separation fitting attachment part will be attached with the string. Although there are raised striations, the strings are not provided with any reinforcing means, resulting in weak raised striations.Furthermore, the back side to which the reinforcing piece is attached has no raised striations and is flat. Even if the components of the separable fitting are attached, the installation strength, especially the horizontal pull strength, will be weak, and the range of use of such slide fasteners with a separable fitting is limited to the separable fitting part. There was a problem that it was difficult to put it into practical use because it was limited to products that required almost no force to be applied.

This invention is intended to solve the above problems, and is a slide fastener with a releasable fitting of the type in which the fastener element is attached to one side edge of the fastener tape, and is made of a thermoplastic synthetic resin sheet. To provide a slide fastener with a releasable fitting which can reliably attach the entire length of the fastener tape to an adherend and also allows each member of the separable fitting to be firmly attached.

[Means for solving problems]

In this invention, a member constituting a separable fitting is attached to each lower end of a pair of left and right fastener stringers, in which a fastener element row including strings such as core strings or splicing strings is attached to one side edge of the fastener tape. In a slide fastener with a fixed separable fitting, the lower end of the tape, which is the attachment part of the separable fitting member, has a string extending from the end of the fastener element row, and a string to which the string is attached. It has a reinforcing piece attached to one side of the tape opposite to the tape side where the reinforcing piece is attached, and the edge of the tape corresponding to the string is recessed in a stepped manner in the reinforcing tape part due to the attachment of the reinforcing piece,
A concave strip formed by the edge of the reinforcing tape and filling a part of the string, and a reinforcing raised strip protruding from the concave strip on the opposite surface,
A raised strip raised from both the front and back sides of the fastener tape is provided at the lower end of the tape, and a separable fitting member is fitted into the raised strip, and a narrow locking piece of the separable fitting member is fitted. is engaged with the side surface of the raised strip.

〔Example〕

A pair of left and right fastener stringers 1, 1 constituting the slide fastener with releasable fitting shown in FIG. The fastener element row 4 through which the stringer 3 is inserted is fixed by a sewing means, and the part where the element row 4 is removed and the string 3 remains at the lower end 5 of the tape of the stringer 1, i.e. A reinforcing piece 6, an insert pin 7, a box body 8, and a box bar 9 constituting the separable fitting member are provided at the lower end 5 of the tape, which is the attachment portion of the separable fitting member, and the reinforcing piece described above is No. 6 has a multilayer structure with a low-melting point synthetic resin layer on one side, such as a two-layer film piece or one in which the surface layer is taffeta with a high melting point and the back layer is a film with a low melting point. As shown in Figure 2, the string 3 is made wider than the width of the tape 2 by applying heat and pressing.
At the same time, weld to one side of the tape opposite to the tape side to which it is attached (the back side of tape 2 in the case shown), and at the same time, in the reinforcing tape part to which the reinforcing piece 6 is attached, weld the edge of the tape corresponding to the string 3. A concave part 10 formed by the edge of the reinforcing tape and embedding a part of the string 3, and a reinforcing part protruding from the opposite surface by the concave part 10. A raised strip 11 is formed on the lower end portions 5, 5 of the tape and raised on both the front and back surfaces thereof.
has been established. A separable fitting member is attached to this raised strip 11, and the mounting portion of each member to the raised strip 11 has a narrowing locking piece 13 projecting from above and below the open edge of the raised strip fitting groove 16. The fitting groove 1
The raised strip 11 is fitted into the raised strip 6, and the narrowing locking piece 13 is crimped and fixed in a state in which it is engaged with the side surface 14 of the raised strip 11. Further, as shown in FIG. 1, a claw piece 15 protruded from the side surface of the member of the separable fitting insert is inserted into the raised strip 11.

Although the fastener element row 4 of the slide fastener with a releasable fitting shown in FIG. 1 is coil-shaped, it may be a zigzag-shaped element row 4a shown in FIG. 4. In this case, a core string may be inserted into the element row 4a as shown in Figure 4A, or a splint may be brought into contact with the top surface of the element row 4b as shown in B. The string 3 extends to the lower end 5 of the tape, which is the separable fitting attachment part, as in the embodiment shown in FIGS. 1 to 3, and a part thereof is formed by the edge of the reinforcing tape. It is embedded in the concave portion 10.

In addition, the illustrated separable fitting insert includes the insert pin 7, as described above.
It is composed of a box body 8 and a box bar 9, and the lower ends of both fastener stringers 1, 1 are connected or separated from each other, and among the members, the box body 8 slides in the same manner as a slider. It may be a member (not shown) that engages and disengages the elements, and may be a reverse-opening releasable fitting that can be detached from the lower end of the fastener. However, even in the case of a reverse-opening type, the insert pin and box pin are attached with the above-mentioned structure. The fastener tape 2 may be any material that can weld the synthetic resin sheet adherend; for example, it may be made of cotton as the tape's constituent threads, it may be made of Tesquechart processed thread and cotton thread, or it may be made of a synthetic resin sheet made of vinyl chloride sheet. etc.

FIG. 5 shows a slide fastener with a releasable fitting manufactured with the above structure, which is opened and closed by the slider 17, and the fastener is covered with a sheet made of thermoplastic synthetic resin such as vinyl chloride. 18 is attached by a welding means such as an ultrasonic ferder or an ultrasonic ferder.

[Effect of idea]

The slide fastener with a separable fitting according to this invention is a fastener stringer in which a row of fastener elements including a string is attached to one side of one side edge of the fastener tape, and the string is attached to the separable fitting attachment part of the fastener stringer. Since it is provided extending from the end of the element row and has a reinforcing piece attached to one side opposite to the string attachment surface, the surface to which the adherend of the fastener tape is attached is the fastener tape itself over the entire length. The adherend can be reliably attached over the entire length of the fastener tape by ultrasonic welding or high frequency welding means. Further, the edge of the reinforcing tape portion to which the reinforcing piece is attached is recessed in a stepped manner toward the surface opposite to the strap attachment surface, so that the edge of the reinforcing tape portion is formed by the reinforcing tape edge, and a part of the strap is recessed. The grooves fill in the tape, and the reinforcing ridges protrude from the grooves to the opposite side, forming raised ridges on both the front and back sides of the tape. The shape is accommodated and supported by the concave strip, reinforcing the string to make it difficult to lose its shape, and the narrow locking piece of the separable fitting member is engaged with the side surface of the raised strip. Since they are in contact with each other, the attachment strength of members such as the insert pin and box pin of the separable fitting tool is strong. In particular, it can sufficiently withstand lateral pulling force, so even though it is a slide fastener with a separable fitting that has a fastener element attached to one side of the tape, it has a strong lateral pull force on the separable fitting part. It can also be used on adherends to which a pulling force is applied, and the range of its use can be expanded at once.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the main parts of the slide fastener with a separable fitting according to the present invention shown in an open state, Fig. 2 is a perspective view showing the attachment part of the separable fitting member of one fastener stringer, and Fig. 3 is a cross-sectional view of the main part of the butterfly attachment in Fig. 1, Fig. 4 is a cross-sectional view showing a similar example of the fastener stringer according to this invention, and Fig. 5 is a main part of the slide fastener with a separable fitting according to this invention. FIG. 6 is a sectional view showing an example devised to solve the problems of the conventional technology. DESCRIPTION OF SYMBOLS 1... Fastener stringer, 2... Fastener tape, 3... Strap, 4... Fastener element row, 5... Lower end of tape serving as a releasable fitting attachment part, 6... Reinforcement piece, 7... Butterfly Bar, 8...Box,
9... Box bar, 10... Concave strip, 11... Raised strip, 12... Reinforcement raised strip, 13... Narrow locking piece, 14... Side, 17... Slider, 18...
...Adherent.

Claims (1)

[Scope of utility model registration request] A fastener element row 4 including a string 3 such as a core string or a tie string is detachably inserted into each lower end portion 5, 5 of a pair of left and right fastener stringers 1, 1 attached to one side of one side edge of a fastener tape 2. This is a slide fastener with a separable fitting that fixes the members constituting the tool, and the lower end portion 5 of the tape, which is the separable fitting member attachment part, is attached to the fastener element row 4.
It has a string 3 extending from the end of the string 3 and a reinforcing piece 6 attached to one side of the tape opposite to the tape side on which the string 3 is attached, and the reinforcement by the attachment of the reinforcing piece 6 In the tape portion, the tape edge corresponding to the string 3 is recessed in a stepped manner to form a reinforcing tape edge, and a grooved portion 10 buries a part of the string 3; As a result, a protruding reinforcing raised strip 12 is formed on the opposite surface, and a raised strip 11 is provided on the tape lower end portions 5, 5 from both the front and back sides of the fastener tape 2. A releasable device characterized in that a releasable end stop member is fitted, and a clamping locking piece 13 of the releasable end stop member is engaged with a side surface 14 of the raised strip 11. Slide fastener with fitting.