US3038226A - Automatic lock slider - Google Patents

Description

S. G. KEDZIERSKI AUTOMATIC LOCK SLIDER June 12, 1962 2 Sheets-Sheet 1 Filed June 16, 1960 INVENTOR. maawdfifspzwmn By G W Arrow/7 June 12, 1962 s. s. KEDZIERSKI AUTOMATIC LOCK SLIDER 2 Sheets-Sheet 2 Filed June 16, 1960.

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INVENTOR. 5141/10 d fipz/aerx/ "Q 6 United States Patent hce assazzs Fatented June 12, lb tfiz 3,638,226 AUTOMATKC 08K SHEER Stanley G. Kedzierski, lviieadville, 9a., assignor to Talon, line, a corporation of Pennsylvania Filed June 16, 1%0, Ser. No. 36,593 4 Claims. (Qt. 2425.l4)

This invention relates to sliders for slide fasteners and, more particularly, to an improved automatic lock slider therefor.

Various types of automatic lock sliders have been heretofore suggested and used and while most of these were practical and satisfactory for most purposes, they were entirely unsatisfactory for other purposes especially if garments or articles with which the sliders were incorporated were subjected to frequent laundering or pressing operations. Often-times the locking member of such sliders would become deformed or displaced from the slider body during pressing or laundering destroying the locking effect of the locking member and defeating the purpose for which the locking member was intended, namely, to lock the slider against unintentional movement along the fastener.

Also, most types of automatic lock Sliders heretofore suggested and used consisted of a multiplicity of parts which were expensive and difficult to fabricate and assemble, thereby resulting in a relatively expensive product. Further, in many constructions the locking member extended out a considerable distance beyond the wing of the slider body on which it was mounted thereby lending itself to destructive forces which, of course, was also object-ionable.

Accordingly, it is the general object of the present in vention to provide an improved automatic lock slider for slide fasteners in which all the above mentioned disadvantages have been eliminated and which is simple in its construction and, at the same time, efficient and effective in its use.

It is a most important object of the invention to provide an improved automatic lock slider wherein there is provided a new and novel manner of attaching the locking member to the slider body and means for supporting the same so as to eliminate any danger of damage or deformation thereof.

It is another object of this invention to provide an improved automatic lock slider wherein overall thickness of the slider is reduced to a minimum so that the locking member will not project an unreasonable distance above the wing of the slider body on which it is mounted.'

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. 1 is a fragmentary plan view of a slide fastener having the improved lock slider of the present invention incorporated therewith,

FIG. 2 is a side elevational view of the improved lock slider constructed in accordance with the present invention,

FIG. 3 is an end view of the same,

FIG. 4 is a sectional view taken on line 4-4 of FIG. 1,

FIG. 5 is a sectional view taken on line 55 of FIG. 1 showing the locking member in its locked position,

FIG. 6 is a sectional view similar to FIG. 5 showing the locking member in its unlocked position,

FIG. 7 is a plan view of the slider body with the locking member removed, and

FIG. 8 is a perspective View of the locking member.

Referring more particularly to the drawings, there is shown in FIG. 1, a conventional type slide fastener comprising a series of spaced-apart interlocking fastener elements 2 attached to the opposed beaded edges of a pair of stringer tapes 3. There is mounted on the fastener elements 2, the slider, generally designated at 4, of the present invention for longitudinal movement therealong for engaging and disengaging the fastener elements in a manner well known to those skilled in the art. This slider consists generally of a body member having spaced-apart upper and lower wings 5 and 6, respectively, connected at one end thereof by a neck portion 7 so as to provide substantially a Y-shaped channel 8 within the slider body.

According to the present invention, there is arranged in the outer side of the upper wing 5 centrally thereof and adjacent the neck portion 7, a lug-like portion 9 having a longitudinally extending channel Ill arranged in the upper side thereof so as to provide side walls 12 to either side thereof.

There is provided a elongated yieldable locking member 13 which is made preferably from relatively thin resilient metallic stock. The upper end 14 of this locking member l3 has a width slightly less than the channel it} in which it is disposed with the extreme end bent at right angles so as to provide an inwardly extending anchoring end portion 15. The portion 16 immediately below the upper end portion M has a width preferably slightly less than the channel ltl so as to permit this portion to move freely in this channel.

On the other or lower end of this locking member 13, there is provided a relatively larger substantially rectangular-shaped box-like or cap-like portion 17 having an in- Wardly extending side wall 18 arranged on each side thereof and an end wall 19. There is arranged on each of the side walls 1%, an inwardly extending finger-like portion 20 and on at least one of these side walls 18, there is provided a locking projection 21 which is adapted to project into the slider channel 8 in one position of the locking member for a purpose and in a manner hereinafter to be described.

The locking member 13 is mounted on the slider body 4 in the following manner. The locking member is positioned on the slider body so that the upper end 14 thereof is positioned in the channel 10 between the side walls 12. The upper ends of each of the side walls 12 are then preferably staked or struck inwardly, as at 22, as shown more clearly in FIGS. 1 and 4 of the drawings, so as to hold the locking member securely in position on the slider body.

The opposite end of the locking member 13 extends downwardly over the upper wing 5 with the rectangularshaped lower end portion l7 disposed over and around the upper end of an angularly arranged lug-like portion 23 struck up from the upper Wing 5 of the slider body, as more clearly shown in FIGS. 5 and 6, which is adapted to limit the inward movement of the locking member. On the under side of this lug-like portion 23, there is provided a shoulder 24 with which the finger-like portions 20 cooperate to limit the outward movement of the locking member. In under and around this lug-like portion 23, there is arranged in the slider wing 5, a rectangular-shaped aperture 25 into and through which the locking projection 21 extends and in which the finger-like projections 20 are disposed.

There is provided an elongated pull member 26 having a transversely extending trunnion portion 27 which is disposed between the locking member 13 and the upper side of the upper Wing 5 in the space between the lugs 9 and '23 and which is adapted to cooperate with the angularly arranged edges 28 the side walls 18 of the locking member to actuate the same and to move the slider along the fastener elements so as to engage and disengage the same in a manner well known to those skilled in the art.

As a result of my invention, it will be seen that there is provided an improved lock slider which has a relatively flat appearance and consisting of a minimum number of parts which may be easily and inexpensively fabricated and having :a locking member which can be conveniently assembled on the slider body.

While I 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 defined in the appended claims.

What I claim as my invention is:

1. In a lock slider for slide fasteners, a slider body comprising a pair of spaced-apart wing portions connected at one end by a neck portion so as to provide a channel therebetween, a lug-like portion arranged on the outer side of one of said Wing portions adjacent said neck portion, said lug-like portion having a longitudinally extending channel arranged in the upper side thereof, an elongated yieldable substantially flat locking member having one end thereof disposed in said. last mentioned channel and which end portion rests on said upper side of said lug-like portion, means for holding that end of said locking member securely on said lug-like portion and in said channel, an elongated substantially rectangular-shaped box-like portion arranged on the opposite end of said locking member having a side wall arranged to either side thereof, another lug-like portion carried by said wing portion over and around which said rectangular-shaped boxlike portion is disposed and on which it is adapted to rest in one position thereof, an inwardly extending finger-like portion arranged on at least one of said side walls which projects in under said second lug-like portion and which cooperates therewith to limit the outward movement of the locking member, a locking projection arranged on the lower edge of at least one of said side walls which extends into and through an aperture in said wing adjacent said second lug-like portion and normally into said slider channel, and a pull member having a transversely extending portion on one end thereof which is disposed between the locking member and wing portion adjacent said rectangular-shaped box-like portion.

2. In a lock slider for slide fasteners, the combination as defined in claim 1, wherein the inner edges of the side walls of the rectangular-shaped box-like portion of the 41 locking member are arranged angular-1y and cooperate with the trunnion portion of the pull member.

3. In a lock slider for slide fasteners, the combination as defined in claim 1, wherein the means for holding the locking member securely in the channel consists of protuberances struck-up from the inner sides of the side walls of said channel so as to abut and extend over the locking member.

4. In a lock slider for slide fasteners, a slider body comprising a pair of spaced-apart wing portions connected at one by a neck portion so as to provide a channel therebetween, a lug-like portion arranged on the outer side of one of said wing portions adjacent said neck portion, said lug-like portion having a longitudinally extending channel arranged centrally in the upper side thereof, an elongated, inherently resilient, substantially flat locking member having a relatively narrow end portion which is positioned in said second channel on said lug-like portion, the side walls of said second channel being deformed and cooperating with said narrow end portion of said locking member for holding same securely in said channel and on said lug-like portion, a substantially rectangular-shaped box-like portion arranged on the opposite end of said locking member having a side wall arranged to either side thereof, another lug-like portion carried by said wing portion over and around which said rectangular-shaped box-like portion is disposed and on which it is adapted to rest in one position thereof, an inwardly extending finger-like portion arranged on at least one of said side walls which projects in under said second lug-like portion and which cooperates therewith to limit the outward movement of the locking member, a locking projection arranged on the lower edge of at least one of said side walls which extends into and through an aperture in said wing adjacent said second lug-like portion and normally into said slider channel, and a pull member having a transversely extending portion on one end thereof which is disposed between the locking memher and wing portion adjacent said rectangular-shaped box-like portion.

References Cited in the file of this patent UNITED STATES PATENTS

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