Keyboard and console device

A keyboard comprising:

• a sliding member that is slidable by pressing operation of an operation member;
• a first elastic member that is attached to the sliding member and elastically buckles and deforms in accordance with the pressing operation of the operation member;
• a second elastic member that is attached to the sliding member and opens and closes an electrical contact in accordance with sliding of the sliding member;
• a support member that guides the sliding member;
• a membrane sheet having a first surface pressed by the second elastic member and a second surface provided opposite to the first surface, the second surface including a conductive member;
• a printed circuit board that faces the second surface of the membrane sheet,
• the printed circuit board including:
• a controller having an output port and a reception port,
• a first contact connected to the output port,
• a second contact connected to the reception port, and
• a diode connected between the reception port and the second contact;
• and
• a spacer that forms a space between the membrane sheet and the printed circuit board;
• wherein the electrical contact includes the conductive member, the first contact, and the second contact, and
• the conductive member is in contact with the first contact and the second contact in accordance with sliding of the sliding member.