Button attaching fastener
AssigneeYKK Corporation
InventorsHirofumi Tanikoshi, Tsukasa Tenjin
Life of this patent
Estimating the term…
Abstract
A button attaching fastener consisting of a button cap and an attachment plug. The button cap has centrally in its rear surface a socket, and the attachment plug has on one end a flange fitted in the socket with a clench portion provided along an outer periphery of the socket clenched over the flange through its substantially entire surface. The clench portion has on its outer surface a plurality of rotation-preventing projections extending radially outwardly from the base of the flange. The rotation-preventing projections serve to prevent the fastener from rotating on a piece of fabric, as of clothing, and also to increase the pulling strength of the attachment plug.
Claims13
A button attaching fastener comprising:
- (a) a button cap having a socket centrally in its rear surface;
- (b) an attachment plug having on one end a flange fitted in said socket;
- (c) a clench portion formed along an outer periphery of said socket and being clenched over said flange of said attachment plug over substantially an entire surface of said flange;
- and
- (d) a plurality of rotation-preventing projections formed on an outer surface of said clench portion.
A button attaching fastener comprising:
- (a) a button cap having a socket centrally in its rear surface;
- (b) an attachment plug having on one end a flange fitted in said socket;
- (c) a clench portion formed along an outer periphery of said socket and being clenched over said flange of said attachment plug;
- and
- (d) a plurality of rotation-preventing projections formed on an outer surface of said clench portion;
- said clench portion has on its inner surface a plurality of recesses corresponding to said rotation-preventing projections.
Dependencies are inferred from the claim text.