Keyswitch device

A keyswitch device, comprising:

• a support sheet;
• a key top;
• a pair of links for supporting the key top, each provided on the support sheet, wherein each of the links includes a first arm and a second arm;
• a frame for supporting the links, provided on the support sheet;
• and
• a membrane switch including a contact part,
• wherein each link includes a rotation shaft provided at a first end of each of the first arm and the second arm, the rotation shaft being rotatably placed on one of the frame and the key top,
• wherein each link includes a slide shaft provided at a second end of each of the first and second arms, the slide shaft being slidably placed in a corresponding one of guide grooves provided on the other of the frame and the key top,
• wherein a connecting groove is provided in the first arm of at least one of the links at a position between the first end and the second end of the first arm, and a connecting shaft is provided on the second arm of the other of the links at a position between the first end and the second end of the second arm, the connecting shaft being movably placed in the connecting groove,
• wherein the membrane switch is provided between the support sheet and the frame, and
• wherein the support sheet and the frame are connected through a first through hole formed in the membrane switch.