Patent ID: 7370501
Filing Date: 2008-05-13
Classification: E05B,G07C,Y10T

Abstract:
1. A key unit comprising: a grip case which includes at least a pair of synthetic resin case members joined to each other; and a mechanical key which is supported in the grip case and which includes a key plate capable of being inserted into a cylinder lock and a key head joined to one end of the key plate; the key head being capable of pivoting the mechanical key between a retracted position in which the entire mechanical key is retracted and a projecting position in which the key plate projects, wherein the key unit further comprises a metal holder ring which is held between the two case members and which integrally includes a plurality of fitting projections, the fitting projections respectively being fitted into a plurality of fitting holes provided in at least one of the case members; and wherein an engagement hook is projectingly provided integrally on one of the case members so as to resiliently engage with an engagement hole provided in the holder ring.