US 2463074 A
Description (OCR text may contain errors)
March 1, 1949. A. wEBER 2,463,074
` LOCK OR SLIDE FASTENER SLIDERS Filed Oct. 16, 1944 'IIIIIIIII/IIII.
2 a' I? V/////////////// INVENTOR ...f/1761 2! W BY m ` ATTORNEYS Patented Mar. 1, 1949 UNITED STATES PATENT OFFICE LOCK FOB SLIDE ras-ranm sLmms e Albert Weber, Edgewood, R. I;
This invention relates to a slider ior slide fasteners and more particularly to a locking device for such slider.
Variouslocking devices have been provided for the slider of slide fasteners so as to prevent the slider from moving along the slide i'asteners to separate or close the same except when the lock is withdrawn by some manual means. such lockingdevices frequently provide a point to extend between the fasteners so as toprevent motion and this point. if not completely withdrawn as it slides over fasteners, may become dull and the point so worn as to become non-effective. In some cases locking constructions are made o! channel shaped parts requiring bending or drawing operations. In some cases the puil tab is flexibly connected to the slider in such a way 'that it may be pulled upon to move the locking member to release position. Sometimes resilient means are provided for moving the locking member in one direction, such for instance as to locking position while depending upon the movement of the tab for swinging the locking member against th resiliency of the spring.
One of the objects of this invention is to Drovide a locking member for a slider which may be formed of a solid piece of material.
Another object of this invention is to provide a locking member for a slider which will have no teners i'or locking the same in position.
Another object of this invention is to`provide a positive means for holding a blunt or rounded end oi' a locking device against slide fasteners so as to appiy a sufficient pressure thereon to prevent movement of the slider body.
Another object of this invention is to provide an arrangement whereby no resilient means is required.
Another object of this invention is to provide a tab which may effectiveiy provide a lever' extension from the locking member for manipulating the locking member.
Another object of this invention is to provide a tab which may Swing with reference to the locking member and act as a wedge to move the locking member from locked position.
Another object of this invention is to provide a simple construction which may be easily and `quickly assembied and the parts of which are relatively simple that they may be made with a minimum of tool operations.
With these and other objects in view, the invention consists of certain nove] features of construction, as will be more fully described and particularly pointed out in the appended claims.
In the accompanying drawings:
Fig. l is a top plan view of a series of slide fasteners with a slider mounted thereon and the pull tab also shown in position; v
Application October 16, 1944, Serial No. 558,'196
2 i Fig. 2 is 'a sectional view on line 2--2 of Fig. 1: Fig. 3 is a view showing the locking member as moved by the tab to release position;
Fig. 4 is a. view similar to Fig. 3 but showing the tab as locked with the locking member for moving the same to locking position;
Fig. 5 is a sectional view similar to Fig. 2 but ona greatly enlarged scale and with the slide i'asteners removed; i
Fig. 6 is a top plan view of the pull tab alone.
In proceeding with this invention a locking member is provided which' is pivoted on the slider and which may be moved by apull tab into a position so that detent and' recess means will hold it in that position, such position being'that oi'` pressing against the slide fasteners to prevent movement of the slider. The construction is also arranged so that when the tab is rocked through substantially ninety degrees` a wedging action takes place between it and the locking member so as to pry the locking member rrom locking position. The parts are such that they 'may be formed of solid construction and relatively strong although light in` weight while at the same time they are of simple formation.
With reference to the drawings, I show a pair of fabric strips o and il upon which thereis an edging I2 and each of which has mounted thereon a slide fastener I: of such a construction that the projecting part ll of each fastener will fit into a recess on the under side of a similar fastener on the opposite strip while itself receiving the' next adjacent fastener on the opposite strip in a well known 'mannen In order that these slide fasteners may be op- 'erated there is a slider i5 comprising a' body formed of two plates IE and I'I held together by a suitable post Construction s which acts as a fastener Separator. This slider is provided with suitable fianges for guiding it in its movement for closing or separation of the slide` fasteners. In the upper plate IS I provide a hole or opening 20 and upon this pi ate there is also provided ears 2i between which a locking member 22 is pivoted on the pin 23. The locking member is shaped, as shown in Fig. 5, having a rounding portion 25 having a portion 24 'extending therefrom so as to i engage the plate s and form a stop limiting the rocking movement about the pivot in one direc- 4 tion. The opposite end of this member 22 is provided with a slot 26 formed partially by a hook 21 and leaving an opening 28 from this slot on the side toward the plate IS. One wall 29 of this slot 26 is substantially straight while the wall 39 of the slot 26 which also forms an edge of the on the plate !6 adjacent the opening 20. When.
these parts are in engagement the locking mem- 2,4eaov4 ber is held flrmy against the slide !asteners to prevent a movement of the slider therealong.
The pull tab' designated generally 35 consists ot a rectangular sheet of stock which has 'a hoe !I punched therein. The width of' this hole 36 is of &dimension to receive the member 32 therethrough while the cross piece 31 between one end of the hole and the end 38 of the pull tab is of a dimension to oosely fit within the slot 26. This i portion 31 will engage at its end 38 with the straight wall 29 while at a point inwardly from its edge 39 it willengage and rock about the rounded surface 30, until its edge 39 is in engage-' ment with the end 40 of :the slot 26. The sizing of the parts is suchas to provide -substantially &three-point contact at'spacedlocations for the pul] tab andthe locking member 22 sothat this puil tab acts as. a lever extension of the locking member whichin its movement toward closing position, 'is substantiallyrigid and will move the locking member 22 so that the detent will snap by the rounded end Al of. the hook and will enter. the recess 31 to hold the'locking member rmly in locking position. 4
The ope in 28 is of 'suchfa size and the rounded surfacefso lsof such shape that when thepull tab 35 is moved upwardly its end 38 will leave the surface 29 'and it wilLrock about the surface 39 until its corner 43 passes through the opening'zs and engages the plate l6.- At this point the corner of the edge 39 will engage the upper straight surface 29 of the recess or slot and by continued upward movement of the pull tab 35 these diagonally opposite corners will slide along the surfaces which they engage acting. as a pry or wedge to swingthe member 22 clockwise about its pivot thus withdrawing the hookshaped'portion which presses against the slide asteners from engagement therewith and move ing this recess and detent out of engagement. When the lockin'g member has been so positioned the slider will be free 'to move along the slide rasteners in either direction. i g
In order that the pul] tab may serve to move the slide fasteners to-open position the limiting stop 24 which engages the plate IS serves very well to prevent too great an opening or swinging of the locking member andrthus this locking member may be used as a means for holding the pull tabs so that it may act for applying pres- I scribed comprising a slider body, a locking member pivoted on.said body and having a locking projection of a length greater than the spacing between adjacent interiocking elements' of the fastener toengage the slide fasteners, 'readily separabe latching means between said member and body to hold said member against said slide fasteners in locking position, said locking member being provided with a slot, a pull tab having a portion to enter said slot and engage the wall-s thereof on opposite sides and at one end thereof for in eflect providing a continuation of the mem- V projectionato engage' the slide fasteners, readily releasable latching means between said member. and body to hold said member against said slide fasteners in locking position. said locking member being providedawith a slot having an open end, ta pull tab having a portion to enter said slot and engagethe walls thereof on opposite sides and ,at one end thereof for in efl'ect providing a continuation of the member as alever for rockingthe member to locked position, said latching meansbeing readily `operable upon rocking of the member, said slot opening on the side toward the body for engagement of the end of the tab with the body, said tab being of a size to act as a wedge between the body and wall of the slottto pry the member from locking ,position upon rocking the tab away from the body.
ALBERT ;WEBER REFERENCES CITE) I The following references are of record in the file of this patent? UNITED STATES PATENTS Number Name Date 1,776,142 A Binns Sept. 16, 1930 1,966,468 Sundback et al. July 17, 1934 2,131,567 Marinsky Sept. 27, 1938 2,271,14l Lange Jan. 27, 1942 FOREIGN PATENTS Number y Country Date 202335 Switzerland May 1, 1939 355374 Italy Jan. 19. 1938 782304 France 1935