US2958111A

US2958111A - End stop for slide fasteners

Info

Publication number: US2958111A
Application number: US739394A
Authority: US
Inventors: Chery Walter Valdamar
Original assignee: Talon Inc
Current assignee: Talon Inc
Priority date: 1958-06-02
Filing date: 1958-06-02
Publication date: 1960-11-01
Anticipated expiration: 1977-11-01

Description

Nov. 1, 1960 w. v, cHERY 2,958,111

END STOP FOR SLIDE FAsTENERs Filed June 2, 1958 INVENTOR. WAL TE/e l/, @Hf/2V BWG? United States PatentjO END STOP FOR SLIDE FASTENERS Walter Valdamar Chery, Meadville, Pa., assignor to Talon, Inc., a corporation of Pennsylvania Filed June 2, 1958, Ser. No. 739,394 s claims. (crm-205.115

This invention relates to slide fasteners, and more particularly, to an improved end stop therefor.

Various types of end stops for slide fasteners have been heretofore suggested and used. While most of these end stops were satisfactory for their intended use, they did not enter the slider channel when the slider of the fastener was moved to its extreme open position thereby not permitting a maximum opening -of the fastener. Those end stops that were designed to enter the slider channel were either too expensive to fabricate and apply or ldid not have sufficient strength.

It is the general object of the present invention to 2,958,111 Patented Nov. 1, 1960 ice@ a recess 9 with which a succeeding fastener element along the stringers cooperate to interengage the fastener stringers in a manner Well known to those skilled in the art.

There is arranged on the fastener elements 3 for longitudinal movement therealong, a slider 10 for engaging and disengaging the fastener elements in a well known manner. At the lower end of the fastener, there is provided the improved end stop member 12 of the present invention for the purpose of limiting the movement of the slider in the opening direction along the fastener elements.

lIn accordance with the present invention, this end stop 12 consists of a staple-like body member, preferably made from flat metallic stock, which is substantially z-shaped so as to provide a pair of spaced-apart relatively narrow transversely extending

portions

13 and 14 interconnected by a relatively narrow diagonally extending portion 20. Each of the transversely extending portions 13 and '14 terminate in

prong portions

15, 16,v and 17, 18 respectively.

When the end stop is assembled on the fastener, as

' more clearly shownin Fig. l, the prongs 1S and 17 on provide an improved end stop for slide fasteners which will not only enter the slider channel when assembled on the fastener but will also hold the endmostV fastener elements securely together and in engagement with one another so as to limit eectively the movement of the slider along the elements and prevent displacement of the slider therefrom.

It is another object of the invention to provide an improved end stop which is strong and rugged and which can conveniently be applied to the fastener and, one which will not become readily displaced therefrom.

It is a more specific object of this invention to provide an improved end stop having a plurality of prongs which are disposed around the beaded edges of the Stringer tape in the spaces between the fastener elements and which penetrate the stringer tapes therebetween and which is so constructed and arranged that the stop is disposed in the plane of the fastener when assembled thereon.

Various other objects and advantages of this invention will be more apparent in the course of the following specification, and will be particularly pointed out in the appended claims.

In the accompanying drawings, there is shown for the purpose of illustration, an embodiment which my invention may assume in practice.

In these drawings:

Fig. l is an enlarged fragmentary plan view of a slide fastener having the improved end stop of the present invention incorporated therewith and showing the slider partly broken away,

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1,

Fig. 3 is a sectional view taken on line 3-7-3 of Fig. 1, and

Fig. 4 is an enlarged plan view of the blank from which the end stop of my invention is formed.

Referring more particularly to the drawings, there is shown in Fig. l, a conventional slide fastener consisting of a pair of Stringer tapes 2 and 2a having a series of spaced-apart interlocking fastener elements 3 and 3a attached to the opposed beaded edges 4 and 4a thereof, respectively.

Each of the fastener elements 3 and 3a has an attaching portion 5 and an interlocking head portion 6 which is relieved at each side thereof, as at 7, so as to provide a tapered projection 8. On the side of the head portion opposite to that of the projection 8, there is arranged one side of the stop are bent and disposed around the beaded edge 4 ofthe Stringer tape 2 penetrating the same in the spaces between the two endmost fastener elements 3 thereof, and the

prongs

16 and 18 on the opposite side of the stop are bent and disposed around the beaded edge 4a of the opposed Stringer tape 2a penetrating the same in the space between the twoV endmost fastener elements 3a of that Stringer with the prong 17 being positioned below the endmost element. It will be seen that the distance between the

prong portions

15 and 17, 16 and 18, at both sides of the stop is slightly greater than the thickness of a fastener element so that the prongs will straddle a fastener element. In such position the central diagonally extending portion 20 will extend diagonally with respect to the fastener elements and be disposed in a recess 21 between adjacent fastener elements formed by the. relieving of the head portion at 7 as has been previously described. As a result this diagonally extending portion 20 as well as all other portions of the end stop will be disposed substantially in the plane of the fastener element, as shown in Fig. 2 which is one of the most important aspects of this invention.

By providing such an end stop construction assembled on the fastener in such a manner, it will be seen that the end stop will enter the lower end of the slider channel thereby permitting a maximum travel of the slider in an opening direction so as to provide a maximum opening of the fastener.

As a result of my invention, it will be seen that there is provided an improved end stop for slide fasteners which is simple and inexpensive to fabricate and attach to the fastener stringers. Also, such an end stop is strong and rugged in its construction and will elfectively limit the movement of the slider along the fastener elements without any danger of being displaced therefrom.

While l have shown and described an embodiment which my invention may assume in practice, it will be understood that this embodiment is merely for the purpose of illustration and description, and that other forms may be devised within the scope of my invention as dened in the appended claims.

What I claim as my invention is:

1. In a slide fastener, a pair of Stringer tapes having a series of spaced-apart interlocking fastener elements attached to the opposed edges thereof, a channeled slider mounted on said elements for longitudinal movement therealong for engaging and disengaging said elements, an end stop member comprising a substantially Z-shaped body member having a pair of outwardly extending prongs to either side thereof, said prongs being disposed around the edges of the respective stringer tapes in the spaces between the opposed endmost fastener elements so that the stop member'is disposed substantially in the plane of the fastener elements whereby the stop member will enter the slider channel when the slider is moved to its fully open position.

2. In a slide fastener, a pair of Stringer tapes having a series of spaced-apart interlocking fastener elements attached to the opposed edges thereof, a channeled slider mounted on said elements for longitudinal movement therealong for engaging and disengaging said elements, an end stop member comprising a staple-like substantially Z-shaped body member having a pair of spaced-apart transversely extending portions connected by a diagonally extending portion, each of said transversely extending portions having a prong arranged on each end thereof, said prongs being disposed around the edges of the respective Stringer tapes in the spaces between the opposed endmost fastener elements, said transversely extending poitions and said diagonally extending portion disposed ush with the endmost fastener elements in spaces therebetween so that the stop member is disposed substantially in the plane of the fastener elements whereby the stop member will enter the slider channel when the slider is moved to its fully open position.

3. In a slide fastener, a pair of Stringer tapes having a series of spaced-apart interlocking fastener elements attached to the opposed edges thereof and having a channeled slider mounted on said elements for longitudinal movement therealong for engaging and disengaging the same, an end stop member comprising a staple-like substantially Z-shaped body member having a pair of substantially parallel, spaced-apart transversely extending portions interconnected by a diagonally extending portion, whereby a lrecess is provided in each side 0f the body member with the recess in one side being staggered relative to the recess in the opposite side, each of said transversely extending portions having a prong arranged on each end thereof, said prongs being disposed around the edges of the respective stringer tapes in the spaces between adjacent endmost fastener elements with a fastener element on one Stringer being disposed in the recess of the end stop on one side thereof and a fastener element on the other stringer being disposed in the recess on the opposite side of the end stop, said transversely extending portions being disposed in the spaces between adjacent fastener elements on the respective stringers and said diagonally extending portion being disposed in a space between opposed fastener elements of said stringers, whereby the prongs, the transversely extending portions and the diagonally extending portions are all substantially in the plane of the fastener elements so that the end stop member will enter the slider channel when the slider is moved to its fully open position on the elements.

References Cited in the le of this patent UNITED STATES PATENTS 1,944,252 Mansbendel Jan. 23, 1934 2,068,501 Marinsky Jan. 19, 1937 2,691,198 Flood Oct. 12, 1954 FOREIGN PATENTS 227,784 Switzerland Sept. 16, 1943