US2867881A

US2867881A - Jam-freeing slider for separable fasteners

Info

Publication number: US2867881A
Application number: US494781A
Authority: US
Inventors: Louis H Morin
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-03-16
Filing date: 1955-03-16
Publication date: 1959-01-13
Anticipated expiration: 1976-01-13

Description

L. H; MORIN 8 2,867,881

INVENTOR. LOU)5 H. MORlN ATTORNEY.

Jan. .13, 1959 JAMFREEING SLIDER FOR SEPARABLE FASTENERS Filed March 16, 1955 32 7,5 54 IO I3 a V 2 2 H 4/ 4W: ml .J w W Tl \w 88 v 2 5 M 7 w a w 8. u m m m 2,

United States Patent Ofilice 2,867,881 Patented Jan. 13, 1959 JAM-FREEING SLIDER FOR SEPARABLE FASTENERS Louis H. Morin, Bronx, N. Y.

Application March 16, 1955, Serial No. 494,781

13 Claims. (Cl. 24205.15)

This invention relates to what are termed jam-freeing sliders for use on separable fastener stringers in coupling and uncoupling the same. More particularly, the invention deals with a slider of the character described, which is so constructed as to provide greater stability in movement of the wall parts of the slider one with respect to the other in the use of the slider.

Still more particularly, the invention deals with a slider structure, wherein means is provided on one of the wall parts to eliminate the necessity of performing an operation upon the associated wall part, thereby economizing on the production cost of the resulting slider.

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 referenc characters in each of the views and, in which:

Fig. 1 is a longitudinal sectional view through a slider made according to my invention, with parts of the construction shown in elevation.

Fig. 2 is a section on the broken line 2-2 of Fig. 1.

Fig. 3 is a perspective view of one wall part of the slider detached; and

Fig. 4 is a perspective view of the other wall part, detached.

This application constitutes a continuation-in-part of my prior application, Serial Number 403,199; filed January 11, 1954, now Patent Number 2,811,764, issued November 5, 1957.

My improved slider comprises two primary flanged wall parts, namely a top wall part and a back plate or bottom wall part 11. The top wall part 10 has flanged sides at the contracted end thereof, the flanges being designated by the reference character 12. The wide end portion of the top part includes an integral web 13, from which extends an elongated bar member 14. The web 13, beyond the limits of the bar 14, has roughened side edges, as noted at 15.

The roughened side edges constitute flash in the die casting of the plate wall 10 and normally require the operation of filing for removal of the same. As later pointed out, it will appear that these edges can be retained, thus eliminating the necessity of the filing opera-.

tion. The bar member 14 has downwardly projecting spaced rivet members 16. The bar member 14, at the narrow end of the slider wall, includes a reduced T- shaped extension 17 forming what may be termed a stabilizing member.

The top Wall part 10 has, at the narrow flanged end thereof, an aperture 18, which opens outwardly through said end of the slider and bridging the outer end of the aperture 18 is an upwardly offset stop stirrup or yoke 19. The bottom wall part 11 has, at its narrow end, side flanges 20 which are in alinement with the flanges 12, when the parts are assembled. The wall part 11 has an elongated aperture 21 for reception of the elongated bar 14 to key or aline the wall parts one upon the other. The inner surface of the wall part 11, at the wide end portion thereof, has a pair of recesses 22, in which the roughened side edges 15 of the web 13 are freely disposed, thus providing free mounting of the wall part 11 on the part 10, as well as movement of the wall part 11 with respect to the part 10. The narrow end portion of the wall part 11 has, on its inner surface between the flanges 20, a recess 23 for reception of the crosshead 17 of the stabilizing member 17.

Considering Fig. 1 of the drawing, it will appear that the top wall part 10 has an upstanding pivot post-24, on the pivot 25 of which is mounted a lock element 26, the forward tooth end portion 27 of which extends into and operates in the aperture 18.

The lock element 26 also includes a forwardly projecting lug 28, which cooperates with the stirrup or yoke 19 in checking outward movement of the lock element through the medium of a pull shown, in part, at 29 in Fig. 1 of the drawing. The pull 29 has a pivot end 30, which operates in a recessed portion 31 on the lower surface of the element 26. The element 26 has, above the web 13 of the slider wall 10, a recess 32, forming a seat for one end of a spring 33, the other end portion of the spring seating and operating in a socket 34 in the Web 13. The spring 33 normally supports the lock element 26 in operative position, in other words, extending the teeth 35 of said element into the channel 36 of the slider body.

Considering Fig. 2 of the drawing, it will be apparent that the bottom wall part 11 has, on its lower surface extending along the aperture 21, a recess 37, whichrnay be said to form a pocket opening into the recess 23. Arranged in the recess or pocket 37 is a plate 38. The plate 38 is fixed to the outer surface of the bar member 14 by heading over therivets 16. Arranged in the recess 37 is a U-shaped spring 39, tensioned to normally support the bottom wall part 11in operative position with respect to the wall part 10. At the same time, the spring 39 will facilitate movement of the wall part 11 with respect to the part 10 when the slider has a tendency to jam on a separable fastener, thus providing assured operation of the fastener, as with other sliders of this'type and kind.

The stabilizing member 17 fits snugly, but freely, in the recess 23 within the walls 20, thus maintaining or stabilizing the wall ,part 11 in its movement relatively to the wall part 10, as well as in the normal operation of the slider, when the wall parts are maintained in their normal spaced relationship to each other by the spring 39.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A jam-freeing slider for separable fastener stringers, said slider comprising a top wall part having an integral web at one end, an elongated bar member protruding from said web and arranged in spaced relation to said top wall part, a bottom wall part apertured to receive said bar member, means for yieldably coupling said bottom wall part with the top wall part, said means including a plate fixed to said bar member, said bar member having .a T-shaped projecting stabilizing member, and said bottom wall part having a recess, snugly, but freely, re-

ceiving said stabilizing member in maintaining alinement of the wall parts one with respect to the other in the use of said slider.

2. A jam-freeing slider for separable fastener stringers, said slider comprising a top wall part having an integral web at one end, an elongated bar member protruding from said web and arranged in spaced relation to said top wall part, a bottom wall part 'apertured to receive said bar member, means for yieldably coupling said bottom wall part with the top wall part, said means including a plate fixed to said bar member, said bar member having a T-shaped projecting stabilizing member, said bottom wall part having a recess, snugly, but freely, receiving said stabilizing member in maintaining alinement of the wall parts one with respect to the other in the use of said slider, and said bottom wall part having, on its. inner surface,

jrecesses arranged in alinement with side edge portions of said web.

3. A jam-freeing slider for separable fastener stringers,

;said slider comprising a top wall part having an integral web atone end, an elongated bar member protruding from said web and arranged in spaced relation to said top wall part, a bottom wall part apertured to receive said bar member, means for yieldably coupling said bottom wall part with the top wall part, said means including a plate fixed to said bar member, said bar member having a T-shaped projecting stabilizing member, said bottom wall part having a recess, snugly, but freely, receiving said stabilizing member in maintaining alinement of the wall parts one with respect to the other in the use of said slider, a lock element pivotally mounted in connection with the top wall part, means yieldably supporting the lock element in operative position, and said top wall part and element having cooperating means, checking movement of said element into inoperative position. 4. A slider of the character described, comprising top and bottom wall parts, having flanged ends, means yieldably supporting the wall parts in predetermined spaced relationship to each other, while permitting relative movement of the wall parts one with respect to the other in jam-freeing operation of the slider, and the top wall part including a T-shaped stabilizing member arranged and operating in a recess in the flanged end portion of the bottom wall part in maintaining alinement of the wall parts one with respect to the other in operation of said slider.

5. A slider of the character described, comprising top and bottom wall parts, having flanged ends, means yieldably supporting the wall parts in predetermined spaced relationship to each other, while permitting relative movement of the wall parts one with respect to the other in jam-freeing operation of the slider, the top wall part including a T-shaped stabilizing member arranged and operating in a recess in the flanged end portion of the bottom wall part in maintaining alinement of the wall parts one with respect to the other in operation of said slider, and said bottom wall part being recessed to clear predetermined portions on the top wall part in providing free mounting and movement of the bottom wall part of the top Wall part.

6. A slider of the character described, comprising top and bottom wall parts, having flanged ends, means yieldably supporting the wall parts in predetermined spaced relationship to each other, while permitting relative movement of the wall parts one with respect to the other in jam-freeing operation of the slider, the top wall part including a T-shaped stabilizing member arranged and operating in a recess in the flanged end portion of the bottom wall part in maintaining alinement of the wall parts one with respect to the other in operation of said slider, a lock element pivotally mounted in connection with the top. wall part, tensional means normally supporting said element in operative position, and interengaging means on said element and top wall part, checking movement of said element into inoperative position.

7. A slider of the character described, comprising top and bottom wall parts, having flanged ends, means yieldably supporting the wall parts in predetermined spaced relationship to each other, while permitting relative movement of the wall parts one with respect to the other in jam-freeing operation of the slider, the top wall part including a T-shaped stabilizing member arranged and operating in a recess in the flanged end portion of the bottom wall part in maintaining alinement of the wall parts one with respect to the other in operation of said slider, and said first named 'means including means for alining. the wall parts one with respect to the other.

8. A slider of the character described comprising a top wall part having a flanged narrow end and a wide end; an integral web at said wide end, means integral with the web for movably supporting a bottom Wall part, said integral means being spaced from and substantially parallel to the top wall part and extending toawrd the said narrow end thereof, a bottom wall part on said means, said means including a stabilizing member operatively engaging the bottom wall part opposite said narrow end of the top wall part to maintain alinement of said wall parts one with respect to the other in the use of the slider, a plate attached to said means and serving to hold the bottom wall part thereon, and yieldable means disposed between the plate and the bottom wall part to normally support the bottom wall part in operative position.

9. A slider for separable fastener stringers comprising a top member, a bottom member and a web joining said members, a movable wall part associated with the bottom member, said wall part having a. longitudinal recess for receiving the bottom member and. also having a pair of grooves disposed opposite side edges of the web, a transverse extension on the bottom member on the end opposite said web and a transverse recess in the wall part for receiving said extension, a retaining member for said wall part secured to the outer side of the bottom member and disposed in said longitudinal recess, yieldable means engaging the wall part and retaining member at a plurality of spaced points and acting to bias the wall part towards said top member, said wall part being rockable about the central longitudinal axis thereof and being further characterized by the fact that a force exerted on a peripheral portion thereof in a direction away from the top member will move said wall part.

10. A slider according to claim 9 in which said yieldable means comprises a pair of bowed spring members.

11. A slider according to claim 10 in which said spring members extend longitudinally of the slider.

12. A slider according to claim 11 in which said Wall part has a pair of opposed shoulders extending partially across said longitudinal recess and in which said spring members are disposed on said shoulders.

13. A slider for slide fastener stringers comprising a pair of spaced members connected by a web at one end thereof, a flanged part disposed on one of said members and spaced from the other member, said other member being flanged, the space between said flanged part and said other member providing a guiding slot for a stringer, said one member having a transverse extension at the end of the slider opposite the web end, said flanged part having a transverse recess for receiving said extension, thereby providing a more stable disposition of the flanged part on said one member, said flanged part having at the web end thereof a pair of grooves each alined with a side edge of the web, means for movably mounting and resiliently maintaining said flanged part with respect to said one member such that the part is movable in a direction toincrease the width of said slot and is normally maintained in a position in which. the slot. Width is less than the maximum possible Width, said flanged part being automatically movable to increase the width of said slotupon contact with .an obstruction coming between the slider and a stringer, and said flanged part and flanged other member helping to prevent the slider from being laterally removed from the stringers.

References Cited in the file of this patent UNITED STATES PATENTS 2,018,948 Corner Oct. 29, 1935 2,090,124 Hossmann Aug. 17, 1937 2,448,192 Poux Aug. 31, 1948 2,681,490 Okolowicz June 22, 1954 2,764,794 Meech Oct. 22, 1956 FOREIGN PATENTS 437 ,60 6 Great Britain Oct; 28, 1935 828314 France ..n May 16', 1938