US2065325A - Snap fastener installation and fastener for the same - Google Patents

Description

Dec. 22, 1936. J. c.- CALHOUN SNAP FASTENER INSTALLATION AND FASTENER FOR THE SAME Filed Feb. 21, 1933 15219922303: @1272 Cf Cal/mun Patented Dec. 1936 i I UNITED STATES PATENTOFFICE SNAP FASTENER INSTALLATION AND FASTENER FOR THE S John e. Calhoun, West Quincy, Mass assigmor to Waited-Carr Fastener Corporation, Cambridge, Mass, a corporation of -Massachusetts Applieafion February 21, 1933, Serial No. 657,787

' a balms. (cl. 24-2023) My invention aims to provide improvements ing through a hole it in the base and by the in snap fastener attached heel lifts for heels attaching prongs which stick into the ma oi shoes and snap fasteners for the same. terial of the heel and prevent rotation of the Referring to the drawing which illustrates a socket. The socket also has a pair of rigid 5 preferred embodiment of my invention: projections llla extending fromopposite edges 5 Figure '1- is aside elevation of a shoe heel thereof and located adjacent to the ends of the and heel lift; yieldable portions ill (Fig.2) to provide guide Fig. 2 is an enlarged bottom plan viw of the means for the yieldable portions of the stud heel with the lift removed to show the fastener and to keep the fasteners from coming apart member carried by the heel; laterally. 10

Fig. 3 is a plan view of the heel lift show- The stud member l is formed from a single ing a fastener member attached thereto;. piece of sheet metal and has a base it, a pair Fig. 4 is an enlarged section taken on the of relatively straight side portions or yieldable line 6-4 of Figure 1; fingers l6 extending from a point adjacent to Fig. 5 is a section of the heel fastener taken the center of the base in one direction and a 15 on the line 5-5 of Fig. 2; and plurality ofprongs 8 extending from the base Fig. 6 is a side view of the heel lift fastener in the opposite direction, as best illustrated in member before attachment. Figs. 3, 4, and 6. The yieldable fingers i6 of Referring to the drawing, I have shown a the stud member extend from inwardly bent simple and ellicient fastening means for detachportions ll extending from the periphery of the able shoe heel structures particularly, though base toward the center. They have their free not exclusively, adapted for use with so-called ends bent outwardly to provide shoulders it for high heels of womens shoes. In the particular cooperative fastening engagement with the structure illustrated, I have shown (Fig. l) a shoulders i 2 of the socket. The stud member conventional high heel l for a womans shoe is attached by the relativelylong prongs 3 which 25 having a shallow cylindrical bore 2 (Fig. 2) pass. into the material of the heel lift 6 and formed at the lower end thereof. In the bore have their ends upset, as best shown in Fig. 4. 2 (Figs. 2 and 4) there is located av snap fas- My improved device is particularly useful in tenersocket member 3 which is secured in place connection with the heels of women's shoes beby means of ascrew 4 and held against rotation cause it is merely necessary to bore a shallow 30 byprongs 5 projecting into the material of circular hole of substantial diameter in the heel the heel I. The heel lift 6 of leather, rubber or I and because it is necessary to use only a stud the like carries a stud member I attached thereand a socket; one of which is attached to the to by attachingprongs 8, as best shown in Figs. heel and the other of which is attached to the 3 3, 4, and 6. The fastener members are adapted heel lift. ;My improved fasteners are also parto cooperate with each other when the heel lift ticularly desirable because they are so 'con- 6 is pressed into position against the bottomof structed that they may be easily and quickly the heel, thereby to hold the parts in predeattached in the proper predetermined relation termined assembled relation, as shown in Fig. 4. to each part so that it is a simple matter to 40 I have found that it is desirable to provide fasattach the heel lift in the proper relation to the 40 tening members which are simple in construcheel. Furthermore, the constructionof the fastion, durable and so arranged that the lift will tener members in and of themselves cooperates be held in a predetermined relation to the heel to prevent relative rotation when they are enwhen attached. The socket member 3 (Figs. 2 gaged and the guide projections lll on the and 5) is formed from a single piece of sheet socket help to center the stud relative to the metal and has abase portion 9, a pair of opsocket and prevent longitudinal movement of posed straight sided yieldable portions or fingers the yieldable fingers l5 relative to the fingers in extending from the base in one direction and I'll a plurality of-sharp pointed attaching prongs while I have illustrated and described a Dre.

7 5 extending from the base in the opposite direcferred embodiment of my invention, I do notwish 50 tion. The yieldable fingers have their free ends to be limited thereby, because the scope of my rolled to provide suitable shoulders I: for snap invention is best defined by the following claims.

' fastening engagement with the stud-member 1. I claim:

As illustrated, thesocket member 3 is attached 1. A snap fastener installation of the class to the heel I. in thebore 2, by ascrew 4 pass described comprising, incombination, parts t be 55 fastened together, a stud member secured to one of said parts and having projections extending outwardly therefrom and terminating in a plane substantially parallel to said part, said projections having opposed smooth edges and opposed sides formed with shoulders extending outwardly therefrom, a socket member carried by the other of said parts and having a pair of yieldable projections extending outwardly therefrom, a pair of. inwardly disposed shoulders on the ends of said yieldable projections adapted to engage the shoulders of said stud member, and a pair of substantially parallel smooth rigid projections extending from said socket member and adapted to bear against the smooth edges of the projections on said stud member thereby preventing lateral movement of said stud member relative to said yieldable projections of the socket member.

2. A snap fastener installation of the class described comprising, in combination, two parts to be fastened together, a stud member secured to one of said parts, said stud member having a base, a pair only of yieldable projections extending outwardly from said base, said projections terminating in a pair of substantially parallel oppositely disposed shoulders, the side edges of said projections including the ends of said shoulders lying in a pair of parallel planes, a socket member carried by the other of said parts and having a pair of yieldable projections extendng outwardly therefrom, a pair of inwardly disposed shoulders on the ends of said projections engaging the shoulders of the stud member, and a pair of relatively smooth rigid projections extending from said socket member and bearing on the edges of said projections of the stud member, thereby producing a relatively rigid relationship and preventing lateral movement of said stud projections relative to said socket projections.

3. A snap fastener comprising a pair of members, each of said fastener members being formed from a single piece of sheet metal, one of said fastener members having a base, a pair of straight sided and straight-edged yieldable projections extending from said base and being nearer together at their free ends than at the base, the ends of said projections being rolled outwardly away from each. other to provide shoulders with cam surfaces, said fastener member having a plurality of prongs formed from the material of said base and extending away from said base in a direction opposite to said yieldable projections to engage a supporting member, the other of said fastener members having a base, a pair of yieldable projections formed from the material of said base and extending away from said base substantially at right angles to said base, each of said yieldable projections having an inwardly rolled shoulder engaging the corresponding shoulder of the first-mentioned snap fastener member, a pair of parallel projections extending away from said base adjacent to the edges of said yieldable projections and bearing against the straight edges of the yieldable projections of the first-mentioned snap fastener member, said pairs of yieldable shouldered projections being so proportioned that lateral motion of the stud member relative to the socket member is prevented by the relatively rigid engagement of the said projections of the socket member with the straight edges of the projections on the stud member.

JOHN C. CALHOUN.

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