JPH0620411Y2 - Airtight and waterproof slide slider for slider- - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a slider for opening and closing an airtight waterproof slide fastener provided with engaging teeth that mesh with a waterproof tape.

[Conventional technology]

This type of slider is suitable for an airtight and waterproof slide fastener chain (hereinafter abbreviated as a chain), and the chain is attached to one side edge of the waterproof tape 1 as shown in FIGS. 5 and 6. A coupling tooth holding portion 2 bent in a substantially lateral Ω shape is formed, and a coupling tooth 4 is enclosed in the coupling tooth holding portion 2 with its meshing head 4 protruding, and at the same time, the coupling tooth holding portion 2 The outer peripheral surface holds a coupling tooth clamp element 5 corresponding to each coupling tooth 3, and the coupling tooth holding portion 2 is provided with a tape side edge portion 6 extending from the coupling tooth clamping element 5, as shown in FIG. In the meshed state as described above, the tape 1 is bent so that the portion of the engaging tooth holding portion 2 stands up, and the engaging heads 4 of the left and right engaging teeth 3 are engaged with each other to form the bent portions of the tape 1. The tape side edges 6 and 6 are in close contact with each other to obtain an airtight and waterproof function. As a slider that can be engaged with each other as described above, the one described in Japanese Patent Publication No. 35-9296 is known. The slider according to the publication is No. 11
As shown in the figure, a wedge portion 9 is vertically provided at the center of the front end portion of the upper piece 8 of the slider body 7, and the left and right components are divided from both front openings 10, 10 of the slider body 7 divided by the wedge portion. The tooth holding portion 2 is inserted, and the tape side edge portions 6, 6 protruding from the coupling tooth holding portion 2 are guided to the guide grooves 11, 11 provided on the back surface of the upper piece 8 along both side surfaces of the wedge portion 9. It is like this.

[Problems to be solved by the invention]

By the way, when the left and right coupling tooth holding portions 2 and 2 are inserted from both front openings 10 and 10 of the slider body 7, the waterproof tape 1 is generally a base cloth having rubber layers attached to both front and back surfaces. Although there is a fold in the part of the tape that should be bent, the elastic force of the tape material deforms it into a straight line as shown in FIG. It is inserted in a twisted state from the normal state. When it is inserted into the slider body in the twisted state as described above, as shown in FIG. 11, both side surfaces of the wedge portion 9 are vertical upright surfaces, and therefore the tape side edge portion protruding from the coupling tooth holding portion is the meshing head portion. It is sandwiched between the side surfaces of the wedge portion and the wedge portion in a bent state, and is guided as it is into the slider body to cause an obstacle in meshing of the coupling tooth, or the meshing head portion of the coupling tooth is pressed against the side surface of the wedge portion 9. However, there is a drawback that sliding resistance occurs at this time and smooth sliding cannot be obtained.

The present invention is to solve the above drawbacks, and to provide a slider for an airtight waterproof slide fastener that can achieve light sliding with a simple structure and can surely engage with each other without trouble.

[Means for solving problems]

The slider according to the present invention has a Y-shape extending from the front to the rear of the slider body, which is divided by the wedge portion hanging from the front end of the upper piece constituting the body, and has a double-sided tooth of the chain. A slider provided with a sliding groove for guiding the holding portion, and a guide groove provided on the back surface of the upper piece for inserting a tape side edge portion protruding from the coupling tooth holding portion from both front openings to the rear opening. On the both side surfaces of the wedge portion of the slider, leaving the lower end portion, an inclined portion having a gradually increasing thickness is provided from the front surface of the wedge portion to the rear portion, and the above-mentioned problem is solved by projecting the wing portion below the both inclined portions. According to the present invention, the taper side edge portions protruding from the coupling tooth holding portion contacting the inclined portion are sequentially guided by the inclined portions provided on both side surfaces of the wedge portion to the guide groove in the slider body. At the same time, the meshing head of the coupling tooth is guided along the upper surface of the wing. And it guides the sliding groove in the rider body.

〔Example〕

As shown in FIGS. 1 and 2, the slider body 12
A wedge portion 14 is vertically provided at the center of the front end portion of the upper piece 13, outer flanges 15 and 15 are vertically provided on both sides of the upper piece 13 toward the rear portions, and the outer flanges 15 and 15 face each other at the lower ends thereof. A pair of lower pieces 16 and 16 that are bent in a direction and extend to both sides of the wedge portion 14 in a state parallel to the upper piece 13 with a space provided therebetween.
In the slider body 12, a Y formed by an upper piece 13, a wedge portion 14 and both lower pieces 16, 16 extending from both front openings 17 and 17 to rear opening 18 of the slider body divided by a wedge portion 14. Character-shaped sliding groove 1
Each of the left and right tapes 1, 1 is provided with a coupling tooth holding portion 2 or 2 which is provided with a sliding groove 19 and the opposing coupling teeth 3 are engaged with or separated from each other during the insertion. Further, as shown in FIGS. 2 to 4, on the back surface of the upper piece 13, the upper piece 13 merges along both sides of the wedge portion 14 at the rear end of the wedge portion 14 and linearly joins the upper piece 13 directly.
A Y-shaped guide groove 20 extending to the rear end is provided, and the upper surface of the guide groove 20 extends evenly to the front openings 17, 17 of the slider body 12. The tape side edge portions 6, 6 protruding from the left and right coupling tooth holding portions 2 are guided.

By the way, as shown in FIG. 2, the wedge portion 14 has a substantially pentagonal shape in which the rear side of the quadrangle protrudes rearward to form a triangle as shown in FIG. 2. Incidentally, the conventional wedge portion 9 is shown in FIG. The wedge portion 14 according to the present invention is notched on both side surfaces except for the lower end portion, and is provided with inclined portions 21 and 21 that become gradually thicker from the front end to the rear portion. Wings 22, 22 each having a substantially triangular shape in plan view are provided at the lower part of 21, 21 so as to project. As shown in FIG. 9, the front and rear end surfaces of the wedge portion 14 are arcuate in shape and have a wide upper portion and a narrower lower portion, as shown in FIG. 2
2 places the engaging heads 4 and 4 of the left and right coupling teeth 3 and 3,
It guides into the sliding groove 19 while maintaining a predetermined height position,
Further, the both inclined portions 21 and 21 are the tape side edge portions 6 which are inclined.
6 are sequentially raised and guided to the guide groove 20.

As shown in FIGS. 1 and 2, both outer flanges 1
Stop bars 23, 23 are symmetrically provided on the outer surfaces of 5, 15 respectively, and a connecting tool 25 projecting from a pull tab 24 is rotatably attached to both stop bars 23, 23.

If the chain is closed by the slider according to the above invention, even if the engagement tooth holding portion 2 of the opened chain is twisted as shown in FIG. 7, when it reaches the front opening 17 of the slider body 12, The meshing head portion 4 of the tooth 3 is placed on the wing portion 22, and the placement causes the engaging tooth holding portion 2 to stand up as shown in FIG.
At that time, the tape side edge portion 6 is tilted, but as it is inserted into the slider body 12, the tape side edge portion 6 is sequentially erected by the inclined portion 21 provided on the side surface of the wedge portion 14, and finally, as shown in FIG. As described above, the double engagement teeth 3 mesh with each other in the sliding groove 19 of the slider body 12, and the both tape side edge portions 6 are pressed against each other in parallel in the guide groove 20.

[Effect of device]

According to the slider for the airtight waterproof type slide fastener according to the present invention, the slider body provided with the sliding groove and the guide groove is provided with the wedge portion provided with the inclined portion and the wing portion, and the wedge member is provided on the wing portion. The engaging tooth head is placed to stand up the coupling tooth holding section, and the tape side edge protruding from the coupling tooth holding section is raised while being guided to the guide groove. Even if it is twisted, the side edge of the tape does not catch on the side surface of the wedge part and bends smoothly when the slide fastener is closed, and the engagement teeth can surely mesh with each other. Is.

[Brief description of drawings]

FIG. 1 is a perspective view showing a slider for an airtight waterproof type slide fastener according to the present invention, FIG. 2 is a partially cutaway bottom view, and FIG. 3 is a sectional view taken along the line AA in FIG.
4 is a sectional view taken along the line BB in FIG. 2, FIG. 5 is a front view showing a partially cutaway airtight waterproof slide fastener chain, FIG. 6 is a transverse sectional view of the same, and FIG. A cross-sectional view showing the twisted state of the coupling tooth holding portion, FIG. 8 is a partially cutaway bottom view showing the meshing state in the slider body, and FIG. 9 is a sectional view taken along the line CC in FIG. FIG. 10 is a sectional view taken along the line DD in FIG. 8, and FIG. 11 is a front view showing a conventional slider. 1 ... Waterproof tape, 2 ... Working tooth holder, 3 ... Working tooth, 4
...... Mating head, 5 ...... Clamp element, 6 ...... Tape side edge, 12 ...... Slider body, 13 ...... Upper piece, 14 ...... Wedge, 15 ...... Outer flange, 16 ...... Lower One piece, 17 …… Front mouth, 18
…… Rear port, 19 …… Sliding groove, 20 …… Guide groove, 21 …… Inclined part, 22 …… Wing part,

Claims (1)

[Scope of utility model registration request] 1. A coupling tooth 3 is enclosed in a substantially lateral Ω-shaped coupling tooth holding portion 2 formed at one side edge of a waterproof tape 1, with the coupling head 4 protruding from the coupling tooth 4. A slider body for clamping and closing a coupling tooth clamp element 5 on the outer periphery of the holding portion 2 and for opening and closing an airtight waterproof slide fastener that protrudes a tape side edge portion 6 from the binding tooth holding portion 2, which slider body
In the inside of 12, a Y-shape is formed from both front openings 17 and 17 divided by a wedge portion 14 suspended from the front end of the upper piece 13 constituting the body to the rear opening 18, and the coupling tooth holding portion 2 Slide groove 19 to guide the
A guide groove 20 is provided on the back surface of 13 through which the tape side edge portions 6 and 6 are inserted from the front openings 17 and 17 to the rear opening 18,
Further, on both side surfaces of the wedge portion 14, inclined portions 21 and 21 each having a thickness gradually increasing from the front surface of the wedge portion 14 to the rear portion while leaving the lower end portion are provided, and the blade portions 22 and 21 are formed below the inclined portions 21 and 21, respectively. 22 sliders for airtight waterproof type slide fasteners.