BUTTON STRUCTURE FOR ELECTRONIC APPLIANCE, INCLUDING BUTTON UNIT, CAP UNIT, AND COIL SPRING

摘要

PURPOSE: A button structure is provided to fix a button in an opening of a front frame in a simple way by using the structure of the button. CONSTITUTION: A button structure comprises a button unit(6), a cap unit(10), and a coil spring. The button unit includes at least one operating pin(6a), and at least three guide bars arranged along a circumference of the operating pin. Each of the guide bars has a front end with a hook(6b'). The cap unit includes a predetermined accommodation space having an open side for partially accommodating the button unit; a through hole for insertion of the operating pin; a coupling hole for permitting the guide bars to slide and catching the hook at a predetermined position; and a predetermined stopper member(9) engaged with inner and outer rims of an opening(3) of a front frame. The coil spring is accommodated in the space formed between the operating pin and the guide bar of the button unit such that the coil spring returns to the original position when the button unit is pressed and released by a user.