US1896873A

US1896873A - Separable snap fastener

Info

Publication number: US1896873A
Application number: US523732A
Authority: US
Inventors: Upham Preston
Original assignee: United Carr Fastener Corp
Current assignee: United Carr Fastener Corp
Priority date: 1931-03-19
Filing date: 1931-03-19
Publication date: 1933-02-07
Anticipated expiration: 1950-02-07

Description

Feb. 7, 1933. 4 P. UPHAM 1,896,873

SEPARABLE SNAP FASTENER Filed March 19, 19:51

Patented Feb. 7, 1933 UNITED STATES PATENT ovl-lolan PRESTON UPHAM, OF BBOOXLINE, MASSAG'HTJ'SIETTS, ASSIGNOB T0 'UNITED-CARB FASTENER CORPORATION, Oli? CAMBRIDGE, MASSACHUSETTS, A. CORPORATION oF mssAoHUsET'rs SEPARABLE SNAP FASTENER Application led Hatch 19, 1931. Serial No. 523,733.

My invention aims to provide improvements in separable snap fasteners.

In the drawing which illustrates a preferred embodiment of my invention Figure 1 is a vertical section through a snap fastener installation showing my invention and the stud being shown in elevation;

Fig. 2 is a section through the cap member and socket part prior to assembly;

Fig. 3 is a sectional view of the parts of the socket installation as they appear when being secured together;

Fig. 4 is an under side view of the socket and cap unit; and

Fig. 5 is a plan view of the socket member, the cap being removed and showing the attaching flange split and in expanded position.

Referring to the particular embodiment of my invention illustrated by the drawing, I have shown a snap fastener installation which has an improved socket member and socket installation.

The stud-engaging part of the socket is pressed from, a single piece of sheet metal and has a central boss vportion 1 open at both ends. This boss portion 1 is divided throughout its length by slits 2 thereby dividing lthe boss into a number of yieldable fingers having their free ends bent inwardly to provide jaws 3 surrounding a. stud-receiving aperture. At that end of the boss 1 opposite the end where the jaws 3 are provided the metal is bent to provide a curved wall 4 irst bent outwardly, then downwardly and then inwardly to provide suitable clenching means. Thus, I have provided a space 5 having an annular entrance 6 into which means presented by an attaching elementmay be forced and upset by engagement with the curved surface 7 provided by the' boss 1 and wall 4, as shown in Figs. 1, 2 and 3. From the outer edge of the entrance 6 the metal extends directly outwardly at right angles to the axis of the boss 1 thereby providing a support engaging surface l8. Then the metal extends directly upwardly (Fig. 2) to provide a flange 9 flaring slightly outwardly and divided by a series of slits 10 (Fig. 5), if desirable. This flange 9 provides means for attaching the stud-engaging part to a cap 11.

The cap 11 may be of any suitable constructron and 1s used as an ornamental or finishing piece. It may be made of any suitable material, but I have shown a ca made of a single piece of molded material, mother of pearl, or the like. The cap 11 has a central ore 12 (Fig. 2) to receive the clencliing means and part of the boss 1. It also has an outwardly Haring groove 13 located outside of the bore 12 and adapted to receive the flange 9 (Fig. 2) which is upset and clenched outwardly by the wall 14 to secure the cap 1l to the stud-engaging part, as best shown in Fig. 3. The slits l() in the flange 9 help it to bend readily without breaking the cap and the groove 13 is so proportioned with relation 'to the bore 12 that the iange 9 does not fill the groove before the socket part seats against the cap in the bore 12. This construction prevents the iange from breaking or cracking the cap when made of fragile ma'- terial.

To secure thest-ud-engaging part to a carrying medium 14, as shown in Fig. 3, I use an eyelet 15 or other suitable attaching member. The eyelet 15 has a tubular portion 16 which passes through an aperture in the carrying medium 17 and has its free end passing through the entrance 6 to the space 5 and presses against the curved surface 7, thereby to upset the end of the tubular portion in the space, as shown in Figure 1. The attaching operation is accomplished by suitable setting tools and when the socket installation is complete the cap 11 is the only member visible at one side of the carrying medium. The

tubular portion 16 of the eyelet 15 surrounds the yieldable boss portion 1 of the stud-engaging part and prevents over-expansion of the fingers. y

The stud installation shown in Figure 1 is of well known construction and as it hasno particular bearing upon my invention it need not be described.

The cap 11 may be attached to the studengaging part either before or after the studvengaging part is attached to its carrying medlum.

My improved fastener installation showing the clenching means for attaching the fastener to its carrying medium and the integral means for securing a cap in lace in combination with a cap is simple, arable and rela- 5 tivel inexpensive to manufacture.

While I have shown and described a preferred embodiment of my invention, I do not wish to be limited thereby, because the scope of my invention is best defined by the following claims.

I claim:

1. A snap fastener member having means for cooperative separable snap fastening enagement with another snap fastener memer, receiving and clenching means provided as an integral part of the fastener member whereby it may upset and attach suitable means to attach said snap fastener member to a suitable carrying medium and integral bendable attaching means provided at the outer periphery of the fastener member whereby a cap may be secured thereto by upsetting the bendable attaching means in the cap thereby to provide a finished appearance to one face of the fastener member.

2. A snap fastener installation comprising, in combination, a snap fastener member al car ing medium, clenching means provided by t e snap fastener member at one side of 3 the carrying medium, an attaching part located at the opposite side of the carrymg medium and having means extending through the carrying medium and into clenched engagement with said clenching means to secure the fastener memberto the carrying medium, a cap concealing the fastener member at that side of the carrying medium where the clenchin means is located, clenching means presente by the cap and attaching means 4 provided as an integral bendable part of the fastener member and u set and clenched by the clenching means o the cap to hold the cap in posit1on.

3. A snap fastener socket installation comprising, in combination, a stud-engaging member, a carrying medium 17, an attaching element 15 for securing the stud-engaging member to the carrying medium 17 and a cap member 11 secured to the stud-engaging -member, said stud-engaging member having a yieldable boss 1 having ]aws 3 at its free end for engagement with a stud, a curved wa114 cooperating with a curved portion 7 of the boss to provide a s ace 5 for receiving and clenching the ortlon 16 of the attaching part 15 and sai stud-engaging member also y aving integral means 9 engaging a wall 14 and upset in a groove 13 in the cap 11 thereby to secure the cap 11 to the stud-engagingv 00 part 1.

4. A snap fastener member for cooperative engagement with another snap fastener member and having integral receivin and clenching means for coo eration wi an attach- 05 ing part to secure e device to a supporting structure, a cap having anvil and clenchin means formed as an integral part thereof an bendable attaching means formed as a part of the fastener member and spaced outwardv