JPH02239804A - Slide fastener - Google Patents

Abstract

PURPOSE:To prevent a slider from being removed beyond an upper stopper and to remove the upper stopper without deforming it when it is necessary by making the maximum width of the first upper stopper of a separatable slide fastener larger than the width of the branched groove of a guide route and making respective maximum widths of first and second half body parts equal to or slightly smaller than the width of the branched groove. CONSTITUTION:A slider 2 is equipped with a slider main body to provide a wedge neck 21, a second pin member 7, upper stoppers 3 and 4, and a pair of side flanges 23 to be extendingly opened which form a Y-shaped guide route 24 to compose the route of an engaging element train 5 along with the neck 21, and the first upper stopper 3 has an inward recessed surface 32 and is composed of first and second half body parts 3a and 3b to be integrally formed successively in a lengthwise direction. A shaft A3 of the whole of the first upper stopper 3 is extended along the center line of a lengthwise inner periphery 11, a shaft A1 of the first half body part 3a is extended in parallel to an upper half part 32a of the inward recessed surface 32, and a shaft A2 of the second half body part 3b extendingly exists in parallel to a lower half body part 32b. Maximum width W1 and W2 of the first and second half body parts 3a and 3b are made equal to or slightly smaller than a width W4 of the guide route 24. A width W3 of the whole of the first upper stopper 3 is made larger than the width W4.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to slide-one fasteners, particularly separable slide fasteners.

PRIOR ART AND PRIOR ART PROBLEM TO BE SOLVED BY THE INVENTION When the slider is moved to the uppermost end and the slide fastener is fully closed, the pair of upper tools are almost completely accommodated in the pair of branch grooves of the Y-shaped guide passage of the slider. A problem with these types of separable slide fasteners is that the slider may accidentally come off the stringer after one of the fastener stringers is separated from the other. For example, US Patent 2 has been proposed to solve this problem.
, No. 193,827 and Utility Model Application Publication No. 112909/1983.

In the case of U.S. Pat. No. 2,193,827, a projection is provided on the upper surface of each upper stop, and a dead-end recess is opened on the inner surface of each branch groove of the Y-shaped passage of the slider toward the front end of the slider. The protrusions of each top stop are provided so that they are received while sliding, and the top stop does not move downwards or rearward within the slider. This prior art slide fastener is inconvenient in that the slider cannot be removed from the fastener stringer when it is desired to replace the slider with another one or to facilitate attachment of the fastener 1 ringer to clothing.

In Utility Model No. 6 0-1-1 2 9 0 9, the slider is provided with a chamfered surface at the front end of the shoulder of the Y-shaped passage, and each upper tool is made of synthetic resin and at least one protrusion is integrally formed. This is adapted to engage the chamfered surface.

When the slider is strongly pulled forward until it covers the top stop, the protrusion is compressed by the chamfered surface and deforms elastically. Because of the provision of this elastically deformable protrusion, the top stopper does not accidentally come off from the fastener stringer, and can be removed when replacement or the like is necessary. The problem with this conventional slide fastener is that the protrusion is made relatively high to prevent it from accidentally coming off, so when the top stop passes through the branch groove of the slider, there is a lot of friction between it and the slider. . ■If there is too much friction, not only will the slider be difficult to remove, but the abrasive material for the top stopper will be limited to a special synthetic resin with high elasticity.

Therefore, the first object of the present invention is to prevent the zipper stringer from accidentally coming off beyond the slider or top stopper, and to prevent the top fastener stringer from coming off by mistake when it is replaced.
To provide a separable slide fastener that allows a slider to be smoothly removed without deforming any of the parts.

Means for Solving the Problems According to the present invention, the object is to provide a separable slide fastener comprising (a) a pair of stringer tapes (1.0
, 1.0) and a pair of mating element rows (5.5) mounted along each longitudinal inner edge (11..II.) of said tape (10.10). - (1.1); and (b) a slide fastener that is inserted through the pair of meshing element rows (5.5) and moves along the same element row (5.5) to engage and release the slide fastener. slider(
2), a wedge-shaped neck (21) provided at the center of the expanded front end (2o), and the pair of meshing element rows (5.5) arranged along both sides of the slider (2). The Y-shaped guide passage (24) forming a passageway is connected to the neck (21).
) forming a pair of flared lateral flanges (2
3. a slider (2) having a slider main body having a slider body (23), the guide passage (24) having a pair of branch grooves (25) branching toward the front end of the slider; (c) a separable fitting (6) attached near the lower end of the fastener stringer (1.1); and (d) each longitudinal inner edge (11.10) of the stringer tape (10.10).
11), the first and second upper stops attached to (3.
4) The first upper stop (3) has a maximum width (ν3) when measured perpendicularly to the longitudinal inner edge (l1) of one of the stringers (1) at the branch of the guide passage (24). The first width is larger than the width (w4) of one of the grooves (25).
The half body part (3a) and the second half body part (3b) are integrally formed to have an obtuse angle shape, and have an inner concave surface (32) that engages with the neck (21) of the slider (2). have,
Each axis (
Al. A2) is one of the stringer tapes (IO
) is inclined inwardly with respect to the longitudinal inner edge (l1) of the guide passage (24), and the maximum width (vl, v2) of each of the first and second half parts (3a, 3b) is the branch of the guide passage (24). groove(
This is accomplished by a separable slide fastener consisting of a first top stop configured to have a width equal to or slightly less than (25); and (3).

Function: The first upper stopper attached to one of both stringers of the separable slide fastener has a maximum width larger than the width of the branch groove of the guide passage when measured perpendicularly to the longitudinal inner edge of one stringer tape. Therefore, even if it is moved in a straight line, it cannot pass through the guide passage. In addition, the first upper stopper is configured to have an obtuse angle shape with the first and second half parts, and the maximum width of each of the first and second half parts is equal to the width of each branch groove of the Y-shaped passage of the slider. The width is the same or slightly smaller, and the upper stop can pass through the branch groove by moving it in a C-shape.

Embodiments The present invention is particularly useful when implemented in the separable slide fastener shown in FIGS. 1-2.

For slide fasteners, use a pair of stringer tape (10
．． a pair of fastener stringers (1.1) having a fastener element array (5.5) attached to the longitudinal inner edge (11.11) of the tape; .

Separation fittings (6) (FIG. 1) are mounted adjacent the lower ends of the fastener slits at the lower ends of each of the opposing tape longitudinal inner edges (11, 11). The separation fitting (6) has a first pin member (9) fixed to the lower end of one of the opposing longitudinal inner edges (11), and a first pin member (9) fixed to the lower end of one of the opposing longitudinal inner edges (11).
) and a socket part (8) fixed to the first pin member (9). The socket part (8) is provided with a hole (not shown),
A second pin portion (7) is removably inserted into this hole.

A pair of reinforcing foils (12. 12) are attached to each side of the lower end of each stringer tape (10).

A pair of upper stops (3.4) are attached to the longitudinal inner edges (II, If) in series with the uppermost engaging elements (5a, 5a) (Fig. 2), and are attached above the slider (2). Movement to is restricted.

As shown in Fig. 2, the slider 2 has a wedge-shaped neck (21
) is provided at the center of the shoulder front end (20), and a second pin member (2) is provided on both sides of the slider (2).
7), upper stop (3. 4), meshing element row (5.
5), the Y-shaped guide passage (24) forming the passage of
a pair of enlarged lateral flanges (21) forming together with
3. 23).

What is important here is that one of the top stops (3) (hereinafter referred to as the "first top stop") has an inward concave surface (32). The first upper stopper (3) consists of first and second half parts (3a, 3b) that are continuous and integrally formed in the longitudinal direction. The foot (AI) of the first half (3a) is connected to the first upper stop (
3) It is tilted inward by approximately 13° with respect to the overall axis (A3). The foot (A2) of the second half (3b) is the first upper stop (3)
It is tilted inward by about 20 degrees with respect to the overall axis (A3). The axis (A3) extends along the center line of the longitudinal inner edge (11). The axis (A1) is the upper half (32a) of the inner concave surface (32)
The axis (A2) extends parallel to the lower half (32b) of the inner concave surface (32).

More importantly, the maximum width (Wl, W2) of each of the first and second half parts (3a3b) is the same as or slightly smaller than the width (W4) of the branch groove (25) of the guide passage (24). This is what is happening. Width (W4) is the distance between the tapered portion (22) of the neck (21) and one of the enlarged lateral flanges (23). The maximum width of the entire first upper stop (3) (W
3) That is, the width measured perpendicular to the longitudinal inner edge (11) is
It is larger than the width (W4) of each branch groove (25) of the guide passage (24).

The first half (3a) has an inner concave surface (32a) and a second half at both ends.
It has an arcuate front surface (30a) connected to the outer side surface (34) of the half body (3b) by a pair of chamfered surfaces (30b, 30c).

The other marketing tool (4) (hereinafter referred to as "second upper stopper") is
Unlike the first upper 1l piece (3), the maximum width (W5) is approximately equal to the length of the engaging element (5), and the guide groove (24
) has a slightly square shape that is slightly smaller than the width (w4) of each branch groove (25).

Figure 2 shows the slider (2) pulled up to the second position, and in this state the first upper stop (3) on [one fastener stringer (1)] is attached to the other fastener stringer. It is in contact with the uppermost fastener element (5a), and this uppermost fastener element l-(5a)
a) is the topmost fastener element on one fastener stringer (1)] which is simply in contact with the member (5a). In other words. These 2
The two uppermost fastener elements (5a, 5a) are also in a non-meshing condition. In this way, the slider has good starting performance.

The second top stop (4) is different from the first and second stops (3) in that it does not actually function as a top stop and is just a decoration, but it has the same shape as the first top stop (3). You can also make it symmetrical. Also, attach the second upper tool (4) to the top fastener element (
It may be extended to 5a). Furthermore, the uppermost fastener element (5a) shown in FIG. 2 is removed, and the second upper stopper (4
) may be lowered by one pin to the lower end side of the fastener stringer (1) and provided at the position of the uppermost fastener element (5a). However, in this case, the first and second upper stops (3.4) are shifted by a half pitch from each other.

Figure 3A shows one fastener stringer (1) separated from the other fastener stringer (1) in a known manner, with the slider (2) simply being pulled in a straight line to the first upper tool (1). 3). At this time,
The maximum width (W2) of the second half (3b) of the first upper stop (3)
) is smaller than the width (W3) of the branch groove (25a) of the guide passage (24), so the first upper 11 tool (3)
Branch? g (25) into the branch groove (25) in a state that is almost parallel to the center line of the first upper stop (3).
The half body (3a) is now blocked at the front end of the guide passage (25).

Next, when the slider (2) is rotated counterclockwise (in the entire plane of the stringer (1)), the tip (22a) of the tapered part (22) of the neck (21) and the central top ( 26) slides on the inner concave surface (32), and the handle (30c) slides on the expanded side flange (23) of the slider (2), as shown in Figures 3B and 3C. Slide on the inner surface. At this time, the first half (3a)
A1) is substantially parallel to the center line of the branch groove (25), and the maximum width (Wl.) of the first half (3a) is equal to or slightly smaller than the width (w4) of the branch groove (25). The first half (3a) has a branch groove (25).
) is inserted smoothly into the inside. When the slider (2) is continued to be pulled, the first upper 11-tool (3) passes through the branch groove (25) and the main guide passage (24). This result slider (2)
is past the first top stop (3) and insert the fastener stringer (
deviates from 1).

Slider (2) to one Fissner stringer (1)
), insert the first half (3a) into the slider (
2) Insert the first half (3a) from the rear end into the branch groove (25).
) is inserted smoothly so that the axis (AI) of the branch groove (25) is approximately parallel to the center line of the branch groove (25) as shown in FIGS. 4A and 4B.

Next, rotate the slider somewhat clockwise to align the tip (22a) of the tapered portion (22) of the neck (2I) and the central nuchal portion (26) of the neck (21) on the inner concave surface (32). At the same time, the chamfered surface (3oc) is slid on the inner surface of the enlarged side flange (23) of the slider (2) as shown in FIGS. 4B to 4E. slider(
2) clockwise to align the axis (A) of the second half (3b).
2) is approximately parallel to the center line of the branch groove (25) and the branch groove (
25) Insert it smoothly into the As the slider (2) continues to be pulled towards the bottom end of the fastener 1 ringer (1), the first top stop (3) passes through the branch (25) and the main guide passage (24). As a result, the slider (2) is inserted into the fastener stringer (1) beyond the first upper stop (3).

As shown in Figures 3A, 3B, 4C, and 4D, when the first upper stop (3) passes through the branch groove (25) of the slider (2), the concave surface of the first upper stop (3) (32) is the neck (21
) and the tapered part (2) of the neck (21).
2), while the first upper IF'. The chamfered surface (30c) of the tool (3) engages the inner surface of the expanding lateral flange (23) of the slider (2). In this way, the first upper stop (3) connects the neck (21) with the expanded side flange (
23) It is supported at three points between. Due to this three-point engagement, the slider (2) is connected to the fastener stringer (1).
) Even if you swing the zipper stringer (
1) will not fall off. Moreover, this three-point engagement allows for easy installation and removal of the slider (2) if necessary.

According to the present invention, the maximum width (ν1, W2) of each of the first and second half parts (3a, 3b) of the first upper stop (3), which form an approximately obtuse angle when viewed from the plane, is equal to the branch groove ( 25) Width (W
4), so that the first upper stop (3) can move the slider in a C-shaped path without experiencing substantial resistance, and can be accessed from either side by the branch groove (3).
25). During this time, no part of the first upper stop (3) is elastically deformed. Therefore, the first upper stopper (3) can be made of either synthetic resin or metal.

Furthermore, the maximum width (y3) of the entire first upper stop (3) measured perpendicularly to the center line of the longitudinal inner edge (11) is the same as that of the branch groove (25).
is larger than the width (w4) of the first upper stop (3), so the first upper stop (3) passes through the branch groove (25) as long as its axis (A3) is kept approximately parallel to the center line of the branch groove (25). I can't.

As shown in FIG. 5, the first upper stopper (3) is a front part (
3d) and a back portion (3e) are integrally formed. Back part (
3c) has a width approximately equal to the length L of the engaging element (5), and has an outer flat surface (3f) substantially flush with the heel (5b) of the engaging element 5 (5).

Generally, in the final or finishing stage of manufacturing a slide fastener with a releasable fitting, for example, adhesion of reinforcing film pieces (12), attachment of component parts of the releasable fitting (6), cutting of the fastener chain, etc. The slider fastener chain is guided by a guide means of a finishing machine that performs slider threading, etc. The back of the first upper 11 second tool (3) (
Shaping 3e) as described above helps guide the slide fastener chain accurately during its finishing process.

Effects of the Invention As described above, according to the present invention, the first upper stop (3), which forms an obtuse angle when viewed from above, has a maximum angle when measured perpendicularly to the longitudinal inner edge (11) of the fastener stringer (1). Significantly (W3
) is the branch groove (2) of the guide passage (24) of the slider (2).
5) is larger than the width of one of them (W4), so the first
The upper stop (3) cannot pass through the branch groove (25) as long as its axis (A3) is kept substantially parallel to the center line of the branch groove (25).

Therefore, when the slide fastener equipped with the releasable fitting is completely separated into the left and right fastener stringers, the slider (2) will not unexpectedly fall off from the first upper stop (3) side. The maximum width (W) of each of the first and second half parts (3a, 3b) of the first upper tool (3)
l. Since W2) is equal to or slightly smaller than the width of the dividing groove (25) of the guide passage, the first upper stop (3) forces the slider along a C-shaped path within the horizontal plane of the slider. When moving vertically, it passes through the branch groove (25) from either side with virtually no resistance. Therefore, for example, when finishing a slide fastener, the slider can be assembled into the fastener stringer even if the top stopper is attached to the fastener stringer in advance, and it is also easy to attach the fastener stringer to clothing or when you want to replace it with another slider. This is a very convenient slide fastener in which the slider (2) can be removed from the fastener stringer if desired.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a separable slide fastener embodying the invention; FIG. 2 is an enlarged partial plan view including a partial cross-section of the slide fastener showing a pair of upper pieces received within the slider; Figures m3 A to 3C are explanatory diagrams showing how to remove the slider from one fastener stringer; Figures 4A to 4E are explanatory diagrams showing how to insert the slider into one fastener stringer; The figure is an enlarged partial bottom view of the fastener stringer of FIGS. 3A-3C and 4A-4E showing the back side of one top stop. (2): Slider (3): First upper stop, (3a)
:First half, (3b) :Second half, (10)
: Stringer tape, (11) : Longitudinal inner edge, (24) : Y-shaped guide passage, (25) : Parting groove, (Wl, W2) : Maximum width of first and second half parts, (
W3): Maximum width of the first upper stop, (W4): Width of the dividing groove.

Claims (1)

[Scope of Claims] [1] A separable slide fastener, comprising (a)
A pair having a pair of stringer tapes (10, 10) and a pair of mating element rows (5, 5) attached along each longitudinal inner edge (11, 11) of the tapes (10, 10). (b) is inserted through the pair of meshing element rows (5, 5) and moves along the same element rows (5, 5) to engage and release the slide fasteners. Slider for (2)
A wedge-shaped neck (21) provided at the center of the expanded front end (20) and a passage for the pair of meshing element rows (5, 5) arranged along both sides of the slider (2). a pair of enlarged side flanges (23,
23), and the guide passage (24) has a pair of branch grooves (25) branching toward the front end of the slider (23).
(c) a separable fitting (6) attached near the lower end of the fastener stringer (1, 1), and (d) each longitudinal inner edge (11, 11) of the stringer tape (10, 10). ), wherein said first top stop (3) is measured perpendicular to said longitudinal inner edge (11) of said one stringer (1); The maximum width (W3) when 3b), and has an obtuse angle shape integrally formed with the slider (2), and has an inner concave surface (32) that can be engaged with the neck (21) of the slider (2), and the first and second halves Each axis (A1, A2) of the parts (3a, 3b) is attached to one of the stringer tapes (1
0) is inclined inward with respect to the longitudinal inner edge (11);
The maximum width (
W1, W2) are the branch grooves (2) of the guide passage (24).
A separable slide fastener comprising (3) and a first upper stop having a width equal to or slightly smaller than (5). [2] The first upper stopper (3) consists of a front part (3d) and a back part (3e) which are disposed on both the front and back sides of the longitudinal inner edge of the one stringer tape (10) and are integrally formed; One (3e) of the front part (3d) and the back part (3e) has a maximum width that is smaller than the maximum width of the other (3d) and approximately equal to the length of each of the meshing elements (5). and the uppermost element (5a) of the meshing element (5).
2. The separable slide fastener according to claim 1, wherein the separable slide fastener has an outer flat surface (3f) substantially flush with the heel (5b) of the separable slide fastener. [3] The separable slide fastener according to claim 1, wherein the inner concave surface (32) of the first upper stop (3) is bent at an obtuse angle. [4] The separable slide fastener according to claim 1, wherein the inner concave surface (32) of the first upper stop (3) has a substantially C-shape. [5] The first half portion (3a) of the first upper stop (3)
has an arcuate front part (30a), and this arcuate front part (30a) has an arcuate front part (30a).
Both ends of the inner concave surface (32a) and the second half portion (3b) are formed by a pair of chamfered surfaces (30b, 30c).
2. A separable slide fastener according to claim 1, wherein the separable slide fastener is connected to an outer surface (34) of the outer surface (34) of the separable slide fastener.