KEY SWITCH OF KEYBOARD UNIT

摘要

PURPOSE: A key switch of a keyboard unit is provided to reduce the size of the keyboard unit by reducing a height of an elastic body. CONSTITUTION: A key cap(211) is touched by a hand of a user. A first short side unit(213a) of a crosslink(213) is supported by a substrate(215) so as to be rotated and a second short side unit(213b) connected to a long side unit(213c) is coupled to a lower surface of the key cap(211) to support it so as to be raised and dropped on the substrate(215). A contact terminal unit(214) is provided on the substrate(215) to generate an electronic signal by a pressure power. An elastic body supports elastically the key cap(211) from the lower part and pushes the contact terminal unit(214) with a contact projection(212d) when the key cap(211) is dropped.