Patent ID: 7173815

Claim:
A receiving unit for a computer installed to a computer main body, having a housing formed with an opening to keep articles therein, and a cassette received in the housing through the opening, comprising: a hooking part provided in the cassette; a locking part installed to the housing, movable between a locking position to block the cassette from being drawn in engagement of the hooking part, and an unlocking position to allow the cassette to be drawn in disengagement from the hooking part; a button part installed to the housing, movable between a pushing position to unlock the locking part, and a push releasing position to lock the locking part; and a converting part to convert the movement between the pushing position and the push releasing position of the button part into the movement between the locking position and the unlocking position of the locking part, and vice versa, wherein the converting part comprises: a pushing part provided in the button part, a pushed part provided in the locking part, and a first elastic member to supply elasticity to the locking part in a locking direction, and an inclination face formed on at least one of the pushing part and the pushed part, so as to allow the pushed part to press against the pushing part in the push releasing direction by the elasticity of the first elastic member.