US2358726A

US2358726A - Automatic lock slider

Info

Publication number: US2358726A
Application number: US505450A
Authority: US
Inventors: Marinsky Davis
Original assignee: Individual
Current assignee: Individual
Priority date: 1943-10-08
Filing date: 1943-10-08
Publication date: 1944-09-19
Anticipated expiration: 1961-09-19

Description

D. MARINSKY AUTOMATIC LOCK SLIDER Sept. 19, I944.

' .Filed'Oct. 8. 1943 I ll INVENTOR flw/s'Mm/Nsw M, .VIYAORNEY Patented Sept. 19, 1944 Davis Marinsky, Bronx. N. Y.. assignor of one- Y halt to Louis E. Morin, Bronx, N. Y.

Application mm s. 1943, Serial No. 505,450

12 Claims. icl. 24-2055) 1 the upper surface oi the cross head 18 substan- This invention relates to sliders for separable fastener stringers. More particularly, the invention relates to sliders for fasteners of the kind described employing means for automatically retaining the slider against movement on the stringers, the means being in the form of a pivoted lock element of substantial T-formation and including an extending spring finger, depressed by the linger piece or pull to move the cross head of the lock elementintoinoperative position in the operation of moving the slider along the stringers to uncouple or separate the stringers.

The novel features of the invention will be best understood from the following description when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed, and in which the separate parts are designated by suitable reference characters in each of'the views; and in which:

Fig. 1 is a perspective view of a slider made according to my invention, showing the slider v detached from the stringers.

Fig. '2 is a side and sectional view of the slider diagrammatically illustrating the same in locked position; and

Fig. 3 is a view similar to Fig. 2, slider parts in the unlocked position.

The slider comprises top and .bottom walls I0 and ii, spaced apart and coupled at the wide end of the slider by a connecting web l2, and the side edges of the walls l0 and II are provided with inturned flanges i3. Arranged centrally and longitudinally of the wall I0 is an elongated loop Id for attachment of a pull of any type and kind, a part of which is'indicated atli in the accompanying drawing.

The pull attaching loop at the narrow or contracted end of the slider body, and where it joins showing the tially in alinement with the corresponding surface of the wall It so'that the lockelement i'orms more or less of an-extension or this wall, and its outer edge 25 is preferably rounded, as clearly seen in Fig. l.

The upper edge of the arm 28 is curved downwardly, as seen at 26, to form a neat and finished appearance at the contracted end oi the slider. The-upper rear surface of the arm 23 is recessedtoreceive one end of a long spring arm or finger 11, which is secured inpositionby a screw or other fastening, as at 28, note Fig. l. The spring finger 21 extends longitudinally and beneath the loop i4, and its inner end 29 normally rests upon the upper surface of the wall l0, so as to support the element i'i in the operative position shown in Fig. 2 of the drawing.

It will appear that'the' projections or pins i9, 20 have rounded corners, so that in moving the slider along the stringers to couplethesame,

that is to say, when movingin the direction of the arrow-30, Fig. 2, the lock element will ratchet over the scoops by reason of the light tensional engagement of the lock element with the scoops through the medium of the .spring finger 21. However, in the operation of moving the. slider to separate the stringers, that is to say, in the direction or the arrow 8|, Fig. 3, the pull it will ride up on the spring flngerfl, and depress this finger adjacent the pivot pin 24, causing the cross head to be moved into raised position, thus disengaging the pins l8 and 20 from the links or scoops. When the slider is at rest, .the lock element will at all times assume a locked position.

the wall 10, is provided with an aperture 18. At

i1 is shown the lock element of the slider. This element is substantially oi T-for'mation, and

comprises a cross head'l8 extending substantially the full width of the channel portion of the slider.

cent scoops on both stringers, as is diagrammatically illustrated in Figs. 2 and, 3 of the drawing,

, in which the scoops 2| are on one stringer, and

the scoops 22 on the companion stringer.

Oilset slightly from the other or top side of the cross head it, is an extending leg or arm 23 o! a lock element. This element is arranged in the aperture 18 of the loop l4, and is pivoted therein by a pivot pin 24. It will be apparentthat the oflsetting oithe leg or arm Ildisposes thus retaining the stringers against accidental separation. t

The automatic lock element of the slider may also be described as a lever having a long flexible end arranged upon the slider wall, and a short rigid end terminating in a cross head disposed beyond the end of the slider wall. The flexible end has sui'ilcient spring properties to maintain the cross head end of the lever or the projections thereoi. in operative position, while at the same time, presenting a bowed portion adjacent the pivot or thelever adapted to be depressed by the pullin throwing or swinging the cross head end of the lever into its inoperative As above stated, the cross head of the lock r-element comprises more or less of an extension to the top wall of the slider, and thus might be said to comprise a pivoted or swinging wall portion. This structural arrangement, in addition to providing a simple automatic lock slider structime also produces a lock slider which will be free from jamming, particularly in that the lock ele- I ment is readily accessible externally of and beyond the limits of the slider body, contrary inthis respect to lock elements which are housed within the slider body and inaccessible to the said element operatively eng ging the slider body to tensionally support the lock element in operauser in the event that the same becomes jammed foranyreason whatever.

Furthermore,- the simplicity of the constructive position, and means movable longitudinally of the slider body and operativelyvengaging. said spring finger to move the lock element into inoperative position.

5. In sliders for separable fastener stringers comprising a slider body having spaced chantion as a whole simplifies the assemblage of the parts, in that the spring finger 21 can be coupled with the cross head body proper, and then the complete unit inserted into the aperture ls, after which the pivot pin 24 can be placed inposition.

Having fully-described my invention, what I claim as new and desire to secure by Letters Patent is: l. A lock slider for separable fastener stringers, comprising a channelled slider body having spaced walls contracting at the narrow end of said body, an elongated loop on one wall of said body, alock member of substantially T-shaped formation, the cross head of said member being arranged beyond the limits of said wall of the slider, the leg of said member extending into an aperture in the loop of said slider wall, means for pivoting the leg of said member to said loop,

a spring finger extending from the leg of said member longitudinally of and beneath said loop, link engaging projections on the cross head of said member for retaining the slider against movement longitudinally of 'fastener stringers, and said spring finger normally supporting the projections of the lock member in operative position. a

2. A lock slider for separable fastener stringers,

comprising a channelled slider body having spaced walls contracting at the narrow end of said body, an elongated loop on one wall of said body, a lock member of substantially T-shaped formation, the cross head of said member being arranged beyond the limits of said wall of the slider,- the leg 01' said member extending'into an for pivoting the leg of said member to said loop.

a spring flnger'extending from the leg of said,- member longitudinally of and beneath said loop.

link engaging projections on the cross head of said member for retaining the slider against movement longitudinally of .fastener stringers, said spring finger normally supporting the projectionslof the lock member in operative position, and means movable longitudinally of the loop of said slider to engage the spring finger in raising the cross head to move the projections thereof out of stringers.

engagement with the llnksof the 3; The combination with a slider of separable fastener stringers having wide and contracted end portions, or anautomatic lock element. means- I pivotally supporting said element to thecontracted end of the slider, said element having a arranged beyond the -limits of the slider body, said part having a lock pin for. enga ing the links of a fastener stringer, and a spring finger on said element operatively en agi g the slider body to tensionally support the lock elementinoperative position.- a a 4. The combination with a slider oi'separable fastener stringers having wide and contracted end portions, -of an automatic lock element, means pivotally supporting said element to the contracted end of the slider, said element having a aperture in the loop of said slider wall, means nelled walls contracted at one end portion of the body, the combination with one wall of the slider body, of a member forming an extension to one wall of the slider at the contracted end thereof, means centrally of said member and extending onto said wall for pivotally pporting the member in connection with said wall, said member having a projecting, lock part on the inner surface thereof, and tensional means normally supporting said member with the lock part thereof within the path of the channel portion or said wall of the slider.

6. In sliders for separable fastener stringers comprising a slider body having spaced channeled walls contracted at one end portion of ,the body,

the combination with onewall of the slider body, of a member forming an exte'nsion'to one wall of the slider at the contracted end thereof, means.

'said finger to raise the lock part out of the path of the channel of said slider wall.

7. The combination with a slider having wide and contracted end portions, of an automatic lock element, said element comprising a lever like member pivoted to the slider adjacent the contracted end thereof, one short end of the lever being rigid and extending beyond the limits 0! the contracted end of the slider, said end having a projectingpart on the under surface thereof,

' and the othere'nd of said lever being long and flexible and extending onto and engaging the v body portion of the slider adjacent the wide end portion thereof.

8. The combination with a slider, having wide and contracted end portions, of an automatic lock element; said element comprising a lever elongated spring finger extending onto and enlike member pivoted to the slider adjacent the contracted end thereof, one short end of the lever being rigid andsubstantially of r -formation to provide an outer cross head end substantially e ual inwidth to the width of the contracted end of the slider, said-cross head having on the un-.

der surface thereof a projecting lock part; and the other end of the leverbeing in the form of an gaging the body portion of the slider. a

9. In sliders for. separable fastener stringers, a channelled slider body defined by spaced walls having narrow and wide end portions, a supplemental wallfpart at and extending beyond the narrow end of one wall of said body, means inov-.

ably supporting the supplemental wall 'on said J wail of the slider body, meansfor supporting the supplemental wall normally part arranged beyond the limits of the slider body, said part'having a lock pin for eng ll the links of a fastener stringer, a spring finger ion in approximate alinement with said wall of the slider body, a

projecting lock element on the supplemental wall extending in the direction-of and forming a part for; one wallof said body and arranged be yond the limits of said wall and" in substantial.

alinem'ent therewith, means movably supporting the supplemental-wall partupon said wall of the body wherebythe supplemental wall may be raised and lowered with respect to said wall, and said supplemental -wall'having a lock element projecting from the lower surface thereof in the the supplemental wall part upon said wall of the body whereby the supplemental wall may be raised and lowered with respect to said wall, said supplemental wall having a lock element projecting from the lower surface thereof in the direction of and adapted to block the channel portion of the slider in'spaced relation to said wall therea of, saidsupplemental wall part having yieldable means extending onto said wall of thelider, and

direction of and adapted to block the channel portion of the slider inyspaced relation to said wall thereof.

means movably supported on said wall of the slideroperatively engaging said yieldable means for moving the supplemental wall part and its lock element into inoperative position.

12. An automatic locking device for sliders of separable fasteners of the class described, said device comprising a bar. having a transverse aperture to form a pivotal support for said bar,

oneend of the bar having a wide cross head ofi- I set with respect to one surface of the bar, a pro- 11. The combination with a channelled slider body having spaced walls, of a supplemental wall part for one wall of said bodv and arranged beyond the limits 'of'saidwall and in substantial alinement therewith, means movably supporting finger to the bar adjacent the aperture therein.

jecting' lock element on said cross head, an elongated spring finger at the other end of said bar, and means for keying and securing the spring DAVIS MARINSKY.