Key having a gripping portion made of synthetic resin

Details Key having a gripping portion made of synthetic resin Key having a gripping portion made of synthetic resin

1990-07-03

1992-03-31

Luebke, Renee S.

Locks

Operating mechanism

Key

70395, G05B 1900

Patent

active

050996657

ABSTRACT:
A key having a gripping portion made of synthetic resin and a metal made base end portion is provided with an insertion portion covered with a synthetic resin. The insertion portion is made thin, and the gripping portion made of synthetic resin covers the corresponding insertion portion. A reinforcement portion having a thickness which is the same as that of the blade portion, but having a width which is wider than the width of the blade portion is provided at a middle portion between the insertion portion and the blade portion on which key serrations are formed. The key is not bulky in size and can not be damaged even after repeated uses.

REFERENCES:
patent: 2672747 (1954-03-01), Craig
patent: 3427833 (1969-02-01), Lempke
patent: 3526112 (1970-09-01), Herrington
patent: 3895508 (1975-07-01), Crasnianski
patent: 4235087 (1980-11-01), Bianchi
patent: 4472954 (1984-09-01), Kichise
patent: 4986100 (1991-01-01), Terada

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