| 摘要 |
<p>A keyboard comprising a base plate, a membrane sheet, a housing, a key top, a link mechanism disposed between the housing and the key top, and a switch operating member disposed under the key top and operated by the key top. The housing, the membrane sheet and the base plate have a slit at a position corresponding to the circumferential part of the key top. Consequently, the interval between the key top and the housing can be decreased even if the skirt part of the key top is long. Furthermore, the slit of the housing is formed annularly to surround the link mechanism discontinuously and a slit corresponding to the bridge-like part of the housing is made in the peripheral part of the key top.</p> |
