Patent ID: 8528374
Filing Date: 2013-09-10
Classification: A45C,B23P,E05B,G07C,Y10T

Abstract:
1. A portable device for electronically locking and unlocking a lock through wireless communication, the portable device comprising: a mechanical key for mechanically locking and unlocking the lock, the mechanical key including an opening, a cover defining an internal space in communication with the opening, and a fitting portion formed on the cover; an engagement member arranged in the internal space of the mechanical key, the engagement member being movable between a first position at which part of the engagement member projects from the opening and a second position at which the engagement member is substantially accommodated in the mechanical key; a coil spring that serves as a resilient member, the coil spring being arranged in the internal space of the mechanical key for urging the engagement member toward the first position from the second position; and a case including a key accommodation portion for removably accommodating the mechanical key so that the mechanical key is capable of being separated from the key accommodation portion, the key accommodation portion including an engaged portion engaged with the engagement member that projects from the opening at the first position when the mechanical key is accommodated in the key accommodation portion; wherein the coil spring includes: