US2620536A - Snap fastener socket - Google Patents

Description

Dea/97, 1952 2,620,536

i. JEAN EMILE FRANCOIS GoBIN DIT DAUDE Now BY CHANGE oF NAME JEAN E. F. GoBIN-DAUDE SNAP FASTENER SOCKET original Fired oct. s, 1941 2 SHEETS- SHEET 1 Jenn EMM. nmgon. Gosm Dn' DAUIN:l l

VNaI/vnu' c'HANae or NAME JEAN E. F. GaIN-DAuas ATTO NEYS @Y f/ 2,620,536 JEAN EMILE FRANCIS GOBIN DIT DAUDE NOW BY CHANGE OF 'NAME JEAN E. F. GOBlN-DAUDE SNAP FASTENER SOCKET i Original FiledlOOt. 8, 1941 2 SHEETS-SHEET 2 la 4 f 5 23? 5T INVENTU'R l Jem uns Famgms Gfam Drr DAIUDE Naw4 BY cHANGE oF NAME JEAN E. F. Gonv-D/WDEI ATTI] RN EY S Patented Dec. 9, y1975-2 SNAP FASTENER SOCKET Jean Emile Franois Gobin dit Daud, Neuillysur-Seine, France, now by change of name Jean E. F. Gobin-Daud; vested in the Attorney General of the United States Original application October 8, 1941, Serial No. 414,192. Divided and this application February 2.8, 1948, Serial No. 11,902. In France March Section 1, Public Law 690, August 8, 1946 Patent expires March 1, 1961 3 Claims.

referred to which is more eflicient in practice than the known devices.

In the annexed drawings:

Fig. 1 is an axial section of a snap fastener socket assembly according to my invention.

Fig. 2 is` a similar view illustrating the corresponding stud engaged into the socket.

Fig. 3 illustrates in axial section a modified form of socket according to my invention.

Figs. 4 to 7 are perspective views with parts in section showing further modifications of my invention.

kIn order to facilitate the following description the face of the socket which is turned towar-d the stud will be referred to as the lower face, While the opposite face will be the upper face.

The socket assembly shown in Figs. 1 and 2 comprises two coaxial annular members A and B. Member A includes an outwardly and downwardly sloping portion the upper face I of which serves to bend the prongs 8 of cap 'I outwardly when said cap is pressed toward member A. Member A further includes an inwardly and downwardly extending central portion 2 of an inner diameter slightly greater than the diameterpof the top of stud C. The under edge of portion -2 forms an upper abutment 3 for resilient wire 4 which forms a split ring, the outer diameter of which is, in use, always greater than the inner diameter of abutment 3.

The split ring 4 is also retained by a lower or rear abutment 5 formed by the inner edge of a base member B shaped to fit against a part of member A. The periphery of member B is turned up around the outer edge of member A, to form a prong locking ring as shown, the outer edge of member B being in close proximity to but spaced away from anvil face l.

The socket thus formed by members A and B is fixed to the cloth or like support 6 by means of an annular fixation cap 1 provided with an annular row of downwardly extending prongs 8.

When cap 'I is pressed against the socket member, prongs 8 are driven through the cloth and engaged against the anvil face l, then bent and deected outwardly and engaged into the annular locking chamber formed between member A and the upturned outer edge of member B.

As shown in Fig. 2, the stud member C is inserted into the socket A-B against the action of the resilient split ring 4 which is axially retained between abutments 3 and 5 but is free to move radially. Split ring 4 embraces the neck of the stud after the head has been inserted. The head of the stud is retained against transverse displacements by the edge of the aperture of cup 2.

The under face of member B is located below the under face of abutment 5.

In the modication illustrated in Fig. 3, the spring means are also in the form of a resilient split ring 4, but this ring is housed within a circular groove 9 formed at the lower part of central portion 2 of member A, said portion being S shaped in axial section, as shown. The walls ofv groove 9 form the axial abutments 3 and 5 for ring 4, while the top part of portion 2 forms a guide preventing transverse displacements of the stud head. Member B of Figs. 1 and 2 is dispensed with and the outer edge of member A is turned inwardly on the front to form the annular locking chamber adapted to receive prongs 8 when the socket assembly is secured to cloth 6.

1t will be noted that in these embodiments the lower face of abutment 5 is located above the plane tangent to the lower face of the whole socket structure and also that the ridge formed by the socket structure between portions i and 2 is above the plane tangent to the upper face of the socket structure upturned portion forming the prong locking means.

In Fig. 4 the spring means 4 are in the form of a resilient fork the arms 4 and 4 of which are elastically opened by the stud. Member B has a at bottom 5 on which spring li is adapted to rest, said bottom having a central aperture for the stud head. The outer edge of member B is turned upwardly and inwardly above or in front of the outer edge of member A as in the case of Figs. 1 and 2 to form an annular locking chamber to receive prongs 8. The inner part 2 of member A is turned rearwardly and is cylindrical; its edge 3 acts as the upper of front abutment for arms 4 and ll", while the cylindrical part forms a guide preventing transverse displacements of the stud.

The end of each arm 4 or i" is bent at 180 to form a rectilinear branch such as l substantially parallel to and spaced from arms 4 and li respectively, the said branch terminating into a curved portion contacting the outer cylindrical wall of member B. 'Iwo diametrically opposed portions are cut in bottom 5 and turned upwardly and inwardly so as to form two lugs l l and Il slightly sloping inwardly as shown.

When alone and at rest, the spring 4 is larger in diameter than bottom 5 of member B and is therefore inserted in the compressed state. But at the same time the two branches such as lil slide against lugs li and Il, which opens the resilient fork d-i against the compression of the spring in accordance with the size of the stud.

In the modication of Fig. 5, arms d and 4 are bent towards each other so as touch one another. They are thereafter turned apart along the outer edge of bottom 5 where they are clamped between the latter and the outer edge of member A.

In Figs. 6 and 7, spring comprises an arcuate circular portion clamped along the outer edge of bottom 5, the free ends being turned twice at 180 in opposite directions, as shown, and terminating into two parallel arms li and adapted to coact with the stud member. Arms fi and l are axially retained by bottom 5 and edge 3 as in the constructions of Figs. 4 and 5. Two T- Y shaped tongues I3' and I3" are cut in bottom 5 and are turned upwardly between the ends of arms 4 and Il". Tongues I3' and i3" form abutments limiting the movement of arms i' and 4" towards the centre of the socket.

In the socket shown in Fig. 6, tongues I3 and i3 are cut in the vicinity of the periphery of bottom 5 and are turned inwardly, i. e, about their innermost side, whereas in Fig. 7, which shows a substantially similar construction, tongues i3' and i3" are cut in the central position of bottom 5 and are turned outwardly, i. e. about their outermost side. It will be observed that in the case of Fig. 7, tongues I3 and I3" are in part formed of metal cut within the central aperture of the socket.

The socket member according to my invention is reduced in thickness and cheap to manufacture. The spring member is well protected and not liable to be damaged.

It will be understood that the above description has been given only by way of example and does not limit my invention the details of which are within the ambit of the appended claims.

In the appended claims, same as in the above 'l tween the parts greatly simplifies the wording of the claims but it should be well understood that it is purely relative and that this conventional upward direction may, and actually does, correspond to any absolute direction in space.

What I claim is:

1. For cooperation with a snap fastener stud, a snap fastener socket to be secured on a sheet of supporting material and which comprises, in combination, a xation cap including an annular row of downwardly extending prongs intended to extend through said sheet of material, an annular member coaxial with said cap and located under it, including an outwardly and downwardly sloping outer peripheral anvil portion located opposite said cap for bending said prongs outwardly when said cap and said member are pressed toward each other on either side of said sheet of material, the top of said anvil portion forming a ridge, and a central stud surrounding portion extending inwardly and downwardly from said ridge, a second annular member partly applied against the under face of said irst member and the outer peripheral portion of which is turned up in a curved fashion beyond the outer edge of said rst member so as to extend closeto but in spaced relation toY said anvil portion and to form a prong locking portion, the top of said up-turned prong locking portion being below said ridge, the inner peripheral portion of said second member and the under edge of the central portion of said first member being arranged to form between them an annular recess coaxial with said members and open toward the common axis thereof, and a split ring spring fitted insaid recess slidably in the direction transverse to said axis, the lowest part of said inner peripheral portion of the second member being above the lowest part or" the outer peripheral portion thereof.

2. A snap fastener socket according to claim 1 in which the second mentioned member fits tightly against the under faceof the first mentioned member along the anvil portion thereof so as to reinforce it.

3. A snap fastener socket according to claim 1 in which the outer edge of the rst mentioned member is in Contact with the inner wall of said up-turned portion of the second member where said inner wall is of maximum diameter.

JEAN EMILE FRANQOIS GOBIN m DAUD.

nnrnamicesorrsn l The following references are of record in the file of this patent:

UNITED STATES PATENTS Reiter Oct. 19; 1943

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