GB2117042A

GB2117042A - Slide fastener slider having deteachable pull tab

Info

Publication number: GB2117042A
Application number: GB08307042A
Authority: GB
Inventors: Susumu Ishii
Original assignee: Yoshida Kogyo KK
Current assignee: YKK Corp
Priority date: 1982-03-25
Filing date: 1983-03-15
Publication date: 1983-10-05
Also published as: BR8301507A; DE3364849D1; ZA831731B; SG76487G; JPS58144413U; KR840002711Y1; MY8700815A; GB8307042D0; EP0090370A2; ES271106Y; ES271106U; DE90370T1; AU537097B2; HK79288A; JPS6328886Y2; KR840004991U; EP0090370B1; CA1193422A; AU1238583A; EP0090370A3

Abstract

A slide fastener slider 10 has a pull tab 13 removably attached to a pull tab connector 12 pivotally connected to a slider body 11. The pull tab 13 includes an elongate base having at one end a generally C- shaped neck portion 15, and a closure rod 16 telescopically supported by the base 14 and normally urged by a spring 18 to close a gap s between opposite ends of the C-shaped neck portion 15 to thereby prevent the pull tab 13 from being removed from the connector 12. When the closure rod 16 is retracted from the gap s against the bias of the spring 18, a pintle 12a of the connector 12 is allowed to pass through the gap s so that the pull tab 13 can be removed from the connector 12. The pull tab 13 may carry a design or emblem. <IMAGE>

Description

1

SPECIFICATION

Slide fastener slider having detachable pull tab The present invention relates to slide fasteners, and more particularly to a slide fastener slider having a detachable pull tab.

French Patent 2,453,614 discloses a slide fastener slider having a pull tab which is removably attached to a connector pivotally connected to a slider body. The disclosed pull tab however has a relatively complex mechanism by which the pull tab is removably attached to the connector and which require a special tool or jig to detach the pull tab from the connector. Further, this complex mechanism bulges on opposite surfaces of the pull tab, thus making the latter unsightly.

According to the present invention, there is provided a slide fastener slider comprising: a slider body having a support lug; a pull tab connector pivotally connected at one end to the support lug and having at the other end a pintle; and a pull tab detachably and pivotally connected to the pintle of the connector; characterized in that said pull tab includes an elongate base having at one end a generally C-shaped neck portion, a closure rod telescopically supported by said base and movable with respect thereto between a first position in which said closure rod closes a gap between opposite ends of the C-shaped neck portion to thereby prevent said pintle of said connector to pass through said gap, and a second position in which said closure rod is retracted from said gap to thereby allow said pintle of said connector to pass through said gap, and means normally urging said closure rod to said first position.

It is possible by means of the invention to provide a slide fastener slider in which a pull tab can be securely attached to pull tab connector and also can be easily detached therefrom without using a special tool or jig.

It is also possible by means of the invention to provide a slide fastener slider having a detachable pull tab which is simple in construction with no bulges on either its top or bottom surface so that a design or emblem, as desired, can be borne over virtually the whole area of either pull tab surface. The invention will be described by way of examples with reference to the accompanying drawings, wherein:50 Figure 1 is a plan view of a slide fastener slider 115 having a detachable pull tab embodying the present invention; Figure 2 is an enlarged, partially cross-sectional view taken along line 11-11 of Figure 1, showing the pull tab having been attached to a pull tab 120 connector; Figure 3 is a transverse cross-sectional view taken along line 111-111 of Figyre 2; Figure 4 is a partially cross-sectional view similar to Figure 2, showing the manner in which the pull tab is detached from the pull tab connector; and Figure 5 is a partially cross-sectional view similar to Figure 2, showing a modified pull tab.

GB 2 117 042 A 1 The present invention is particularly useful when embodied in a slide fastener slider such as shown in Figure 1, wholly indicated by the numeral 10. The slide fastener slider 10 generally comprises a slider body 11, a pull tab connector 12 pivotally connected at one end to a support lug 11 a on the slider body 11 and having at the other end a pintle 12a, and a pull tab 13 pivotally connected to the connector pintle 12a and detachable therefrom in a manner described below.

As shown in Figure 2, the pull tab 13 includes an elongate base 14 having at one end a generally C-shaped neck portion 15, and a closure rod 16 telescopically supported by the base 14. The closure rod 16 is partially received in a longitudinal or axial hole 17 of the base 14 and is movable with respect to the latter between a first or "closed" position (Figure 2) in which the closure rod 16 closes a gap s between opposite ends of the C-shaped neck portion 15 to thereby prevent the passage of the connector pintle 12a through the gap s, and a second or "open" position (Figure 3) in which the closure rod 16 is retracted from the gap s to thereby allow the connector pintle 12a to pass through the gap s. A compression spring 18 is mounted in the hole 17 of the base 14 to normally urge the closure rod 16 to the closed position (Figure 2).

At its free or right end portion 19, the closure rod 16 is dog-legged upwardly, i.e. toward the C-shaped neck portion 15, so that when the closure rod 16 is in the closed position (Figure 2), its distal end 1 9a is engageable with the free end 1 5a of the neck portion 15 so as to limit the outward or rightward movement of the closure rod 16 against the bias of the spring 18.

To detach the pull tab 13 from the connector 12, the closure rod 16 is moved simply by the finger (not shown) in the direction of an arrow A against the bias of the spring 18 until the closure rod 16 is retracted from the gap a to allow the connector pintle 1 2a to pass therethrough. Thus the pull tab 13 can be detached from the connector 12 by simply getting the connector pintle 1 2a out of the C shape of the neck portion 15. To attach the pull tab 13 again; with the closure rod 16 held in the retracted or open position (Figure 4), the connector pintle 1 2a is placed in the C shape of the neck portion 15, and then the closure rod 16, when released, is moved to the advanced or closed position (Figure 2) by the action of the spring 18.

Accordingly, the pull tab 13 can be easily and surely attached to the connector 12 and also can be easily detached therefrom without using a special tool or jig. Further, since the closure rod 16 is telescopically supported through the base 14, there appear no bulges on either the top or bottom surface of the base 14 so that a design or emblem, as desired, can be borne over the whole area of either surface of the base 14.

In order to facilitate its manual retraction, the closure rod 16 may have on its bottom side (opposite to the C-shaped neck portion 15) a 2 GB 2 117 042 A 2 projection 20 adjacent to the heel 19b of the dog leg shape, as indicated by phantom lines in Figures 2 and 4.

Figure 5 shows a modified pull tab 23 in which the base 14 has, in one side opposite to the C-shaped neck portion 15, a longitudinal slot 24 communicating with the hole 17 and in which a straight closure rod 16 has a projection 25 received in the slot 24 and slidable therealong in response to the.movement of the closure rod 16 between the closed and open positions. With this arrangement, the extent to which the closure rod 16 is moved is limited within the length of the slot 24.

Claims

1. A slide fastener slider comprising:

(a) a slider body having a support lug; (b) a pull tab connector pivotally connected at 50 one end to said support lug and having at the other end a pintle; and (c) a pull tab detachably and pivotally connected to said pintle of said connector, said pull tab including (1) an elongate base having at one end a generally C-shaped neck portion, (2) a closure rod telescopically supported by said base and movable with respect thereto between a first position in which said closure rod closes a gap between opposite ends of the C-shaped said neck portion to thereby prevent said pintle of said connector to pass through said gap, and a second position in which said closure rod is retracted from said gap to thereby allow said pintle of said connector to pass through said gap, and (3) means normally urging said closure rod to said first position.

2. A slide fastener slider according to claim 1, said base having a longitudinal hole in which said closure rod is partially received and in which said urging means is mounted.

3. A slide fastener slider according to claim 2, said urging means comprising a compression spring.

4. A slide fastener slider according to claim 1, a free end portion of said closure rod being so doglegged that when said closure rod is in said first position, its distal end is engageable with a free end of said neck portion so as to limit the movement of said closure rod against the bias of said urging means.

5. A slide fastener slider according to claim 4, said closure rod having on one side opposite to said neck portion a projection disposed adjacent to a heel of such a dog-leg shape.

6. A slide fastener slider according to claim 2, said base having in one side opposite to said neck portion a longitudinal slot communicating with said hole, and said closure rod having a projection received in said slot and slidable therealong in response to the movement of said closure rod, the extent to which said closure rod is moved being thereby limited within the length of said slot.

Printed for Her Majesty's Stationery Office by the Courier Press, Leamington Spa, 1983. Published by the Patent Office 25 Southampton Buildings, London. WC2A lAY, from which copies may be obtained.

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