Patent ID: 8399789

Claim:
A keyboard comprising: a base panel; a switch panel disposed on an upper surface side of said base panel, having a hole portion at predetermined position; a membrane sheet disposed between said base panel and said switch panel, having a contact portion; a key top adapted to be depressed for switching said contact portion ON and supported on an upper surface of said switch panel; and a stepped tubular housing supporting and guiding said key top to move freely in a vertical direction, having a tube portion on an upper end side having a guide hole formed for inserting a stem that is formed integrally with said key top, and a flange portion on a lower end side extending laterally around the tube portion in a size larger than said hole portion; wherein said housing is inserted into said hole portion from a back side of said switch panel, said flange portion being attached to the back side of said switch pane, and wherein said housing is securely supported on said base panel by said flange portion sandwiched between said switch panel and said base panel.