US1660432A - Fastener - Google Patents

Description

' Feb. 2s, 192s.

F. S. CARR FASTENER Filed June 14, 1924 w Wm 4H. o f n, v. W 8 v Patented Feb. 28, 1928.

Unire-D siarssrars 1,650,432 rines.

FRED S. CARR, OF NEWTON, MASSACHUSETTS, SSIGINOR 'lOA CARR FASTENER COM--A P ANY, OF CAMBRIDGE, MIASSACHUSE'J]TS1,` A CORPORATION OFMAINE.

FASTENER.

Application lcd .Tune 14, 1924. `Serial No. 719,933.

This invention aims to provide an 1mproved separable fastener.

In the drawings, which illustrate a preferred form and a modified form of my inventionz- Figure V1 is a kfront elevation of the preferred embodiment of my device;

Fig. 2 is a section on the line 2-2 Fig. 1, being partly in elevation; Fig. 3 is a rear elevation of the stud member of the device;

Fig. e is a section similar to Fig. 2, Showing the stud entering the socket;

Fig. 5 is a section on the line 5-5 of Fig. 2;

Fig. 6 is a front kelevation of the latch member of the preferred embodiment of my device; and Y Y Fig. 7 is a cross-section of the modified form of my device, being partly in elevation.

Referring to the form of fastening device illustrated in Figs. 1 to 6 inclusive, I have shown a grommet or eyeletl secured to the body of an-automobileor like support. In

the wooden part 3 of the body of the car, I have provided a recess 11 beyond the eyelet, thereby to permit passage of the .head of a stud through the eyelet. Thus a socket is provided which is substantially flush with the'side ofthe car and which has no mechanism which can get out of order.

The stud member may be secured to the curtain 5 in any suitable manner, but I prefer to provide prongs 6 projecting from a front plate 7 through the curtain 5 and slots 8 in a back lplate 9. The prongs are then bent into engagement-with the backv plate, as best illustrated in Figs. -2 andl 3. The stud as illustrated includes a relatively short hollow shank l0 pressed from a base plate 11 and passing through the curtain 5 andV back plate 9 for engagement with'the eyelet 1. yThe base plate 11 is securedto the front plate 7, as illustrated in Figs. 2 and 4,' to provide a casingat the -front'side ofthe curtain for reception of a spring plate 12.

The spring plate 12, as illustrated in Figs. 2 and 6, is pressed from a single sheet of metal and comprises a U-shaped portion 12a, a resilient finger 13 extending from the U- shaped portion 12a and a latch 14 extending substantiallyfat aright angle to the spring finger.. This Alatch is preferably formed by pressing two like parts from the flat *sheety of metal and bendingl them toward each vother to providea latch of relatively thick V.plate as illustrated. Thus the resilient finger presents the latch in the shank 10. To per-r mit the latch to be exposed at the exterior surfaces of the hollow shank 10, I provide a slot 15 in the shank through which the latch presents a considerable projection in the formv of a cam-shaped edge 16 lwhich is ,normally presented at thelower exterior surface of the hollow shanklO. y Y

4Fig. e illustrates the proper relation of the, stud to the socket. when the shank l0 is being entered in the eyelet 1. The ,diam, eter of the aperture in the eyelet isenough larger than the diameterof the shank 10 to permit the shank to be enteredintothe eye-l let, while tipped .relative thereto,` so that the shoulder 17 on thevlatch-le, normally within the shank 10,v may pass by 'the inner edge of the eyelet before any substantial movement of the .latch hastakcn place.

When the camfshaped edge 16 of the latch engages the edge of the eyelet, as vshovvnl in Fig. 4, .and the stud is pressed toward the socket, the latch is forced upwardly and inwardly relative to the shank and against. the pressure of the springfinger 13. Thus as the shank passes into the recess 4- inthe body 3 of thevcar, the shoulder'of the latchisexposed at, the upper exterior surfacek of the shank 1'0 through the slot 15 andf engages back 4of the eyelet, as illustrated in Fig. 2, thereby lockingvthel stud with the socket.

When the stud is secured to the socket (Fig. 2) the back plate 9 lies relatively close to the side of, the car, thereby positioning Vand abovethe stud as viewed in Figs. 1

and 2.;

;-k Thel shank 10 ofthe; stud is located' adjacent that edge of the casing toward the Y body ofthe curtain so that the rest yof the casingextending toward the free edge ofthe curtain provides' a substantial leverage for separating the stud from theV socket when iin 95 the curtainas close to the side ofthe car as n i stud out of engagement with the eyelet When the curtain is pulled adjacent to said eXteiiding side of the casing.

7. Locking means ior a separable fastener comprising a base plate, a resilient portion integral therewith and movable relative thereto and a socket-engaging latch integral with said resilient portion, said latch pres senting an abrupt shoulder at one edge for engagement with a socket and at the opposite edge cam means for engagement with a socket to move saidshoulder into locking" engagement with the socket. n

8. A stud and eyelet fastener comprising, in combination, an eyelet adapted for use as a socket, a cooperating stud having a casing, a hollow shank portion projecting from said casing, a spring plate held in said casing carrying a latch member integral with said spring plate, opposite edge' portions of said latch member being presented at opposite exterior lateral surfaces of said shank Whensaid eyelet and shank are engaged, an*

abrupt shoulder at one exterior surface for portion at the opposite exterior surface engaging said eyelet under tension of said spring plate, said shank and eyelet sepaj rable only by a pull adjacent said cam portion.

9. A separable fastener comprising, in

combination, a stud member and a socket y member, oneofsaidmembers presentingla n shoulder and the other of said members having a easing containing a spring plate mem-` ber, said spring plate member having a yieldable portion and a. latch, said latch havingk a shoulder for engagement backy of the shoulder provided by said lirst-mentioned fastener member and means for moving said second-mentioned shoulder ,out of engagement With the first-mentioned shoulder prior to disengagement of the fastener members.

10. A separable fastener comprising, in combination, a socket secured to a rigid sup` port, a stud including a casing secured to the front side of va curtain, and a spring plate in said casing carrying a latch pass-l ing through said curtain for engagement `with the socket, said latch having a shoulder thereon for locking said stud and socket together.- l

In testimony Whereof,`I have signed my name to this specification. v

' FRED S. CARR.

Images