US2382943A - Turn button fastener - Google Patents

Description

4 H. J'. MURPHY 2,382,943 TURN BUTTON FASTENER 1 Filed July 5, 1945 1 l 8 15- l V 4.: I I3 I I 31 wanton I 5 fl'awaf'cbel Hui-" 7213.

Patented Aug. 14, 1945 TURN BUTTON FASTENER 7 Howard J. Murphy, Greenwood, Mass, assignor to United-Carr Fastener Corporation, Cambridge, Mass., a corporation of Massachusetts Application July 5, 1943, Serial No. 493,616

2 Claims.

The present invention relates to turn button fasteners, such as those now used as curtain fasteners, and aims generally to improve fasteners of this type.

One of the primary objects of the invention is the provision of a strong durable turn button fastener having a minimum of its parts of sheet metal construction and others of its parts of molded plastic material.

A further aim of the invention is the provision of an improved fastener of novel construction formed of a minimum number of parts and which may be readily manufactured and assembled at a minimum of cost.

Other aims and advantages of the invention will appear from the following more detailed specification of a preferred embodiment of the invention, reference being had to the accompanying drawing, in which Fig. l is a front elevation of the improved fastener, a part thereof being shown in section better to illustrate the construction;

Fig. 2 is an edge elevation thereof;

Fig. 3 is a top plan View thereof;

Fig. 4 is a bottom plan view thereof; and

Fig. 5 is a vertical sectional view taken on the line 55 of Fig. 1 with the fastener illustrated attached to a supporting fabric.

Referred to the drawing, my improved fastener may advantageously comprise a main body part III, formed of thin sheet material such as metal which is suitably stamped to a proper form, preferably an elliptical form, as shown in Figs. 3 and 4. The body part is of hollow construction and has an outwardly flared depending skirt or base II from the edge of which extend a plurality of attaching prongs l2, there being two prongs illustrated in the preferred form.

The body part III is formed at its upper end with a longitudinally extending grooved top 13 formed with a central aperture, the opposite sides of the top l2 having transversely extending concaved seats or grooves I4. As will be apparent from the drawing, the body part I0 with the at-. taching prongs I2 is preferably of a one-piece construction.

The turn button part is preferably of two-part construction comprising a body [5 and awear plate l5 having a convexed surface adapted to seat in the grooves l4 of the body I0. The body I5 is preferably molded or formed from a suitable non-metallic material, such as a synthetic plastic composition. For example, any of the synthetic plastics may be employed, either the thermoplastic or thermo-setting composition, and preferably a plastic composition is selected that will adhere to the metal wear plate I6 under molding pressure, such as polystyrene compositions. The sides and ends of the molded body part may taper slightly from the periphery of the wear plate to form a rounded entering nose end ll. The molded body 15 as well as the wear plate [6 is formed with an axial opening l8 extending entirely therethrough.

The turn button part is conveniently attached to the hollow body I0 and held in tensional engagement therewith by means of a pin I9 extending through the opening l8 and into the hollow body for a substantial distance and formed with a rounded head 20 to engage the fiat end of the molded turn button body l5. A leaf spring 2| of generally U-shaped form, having an apertured bight portion 22 and opposed S-shaped legs, is fitted in the hollow interior of the body II] with the ends of the spring legs abutting the inner face of the upper body end I3. The end of the pin l9 extends through the aperture of the bight portion 22 of the spring 2| and is upset, as at 23, over the under surface thereof to secure the parts together in tensional engagement.

In attaching the fastener to a support which may be a sheet of fabric, leather, wood or the like, the prongslZ are forced through the support S (see Fig. 5) and are then clenched inwardly in overlying relationship. In this position they lie within the sides of the base H and substantially flush with the bottom edges thereof. The hollow body H! is thus securely attached to the support S and the turn button body l5 may be manually turned around the pin [9 relative to the body I 0 so as to be seated in the transverse grooves Id of the body l3.

The provision of a fastener having a molded turn button of plastic composition as described, not only provides a button of pleasing appearance, but one which is pleasant to the touch as well as economical of manufacture.

Although I have illustrated and described a preferred form 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 turn button fastener comprising metal stationary part adapted to be attached to an object of support, a rotatable head carried thereby, said head comprising a body of molded polystyrene composition and a sheet metal wear plate embedded in that end thereof which bears against said stationary part, a spring member and a pin member passed through said head, stationary part and spring member for securing said parts together in tensional relationship.

2. A turn button fastener comprising a stationary part adapted to be attached to an objectof support, a rotatable head of plastic composition carried by said support, cooperating cam portions provided between the stationary part and rotatable head for holding the parts in predetermined rotated relations, a spring member, a pin member passed through said head, stationary part and spring member for securing the parts together in tensioned relation and a wear plate interposed between the -rotatable head and the stationary part to prevent Wear of the plastic head otherwise caused by a constant relative rotation of the parts.

HOWARD J. MURPHY.

Images