Patent ID: 8217919

Claim:
A stylus retaining and releasing mechanism configured to retain and release a stylus assembled therein, comprising: a housing comprising: a first sidewall defining an assembling hole therethrough configured for inserting or removing the stylus, a second sidewall connecting with one end of the first sidewall and defining a button hole therethrough; and a stylus assembling portion comprising a first assembling portion disposed on an inner surface of the second sidewall adjacent to the assembling hole, the first assembling portion defining an axial receiving hole therethrough communicating and being coaxial with the assembling hole to receive the stylus therein; a push button elastically assembled to the second sidewall corresponding to and exposing from the button hole and configured to lock the stylus in position, the push button including a releasing portion, the releasing portion of the push button including an assembling slot axial recessed therein; an elastic piece penetrating through the assembling slot of the push button, with two ends thereof fixed to the housing for providing an elastic force resisting against the push button; and an eject piece fixed to the housing and configured to push the stylus out as the push button being released.