KEYSWITCH STRUCTURE AND BALANCE LINK THEREOF

摘要

A keyswitch structure includes a base plate, a keycap, a lift mechanism, and a balance link. The lift mechanism connects between the keycap and the base plate such that the keycap can move up and down relative to the base plate. The balance link is formed substantially in a U-shaped profile. The middle portion thereof is rotatably disposed on the base plate; the two ends thereof are respectively formed in an L-shaped profile and rotatably inserted into two slot structures on the keycap or the lift mechanism or both. Compared with a conventional balance link formed in an n-shaped profile connecting a keycap and a base plate, the invention provides more diverse structural connections, conducive to structural miniaturization. Furthermore, a support of the lift mechanism includes a protrusion capable of being blocked by a limitation structure disposed on the base plate for controlling the rotation angle of the support.

主权项

1. A keyswitch structure, comprising:
a base plate having an engagement structure; a keycap disposed above the base plate; a lift mechanism connected to and between the base plate and the keycap such that the keycap is capable of moving up and down relative to the base plate through the lift mechanism, the lift mechanism having a first recess and a second recess disposed oppositely; and a balance link having a first side rotatable arm, a second side rotatable arm, and a middle portion, the middle portion connecting the first side rotatable arm and the second side rotatable arm such that the balance link is formed substantially in a U-shaped profile, the middle portion being rotatably disposed on the engagement structure, the first side rotatable arm comprising an L-shaped end rotatably inserted into the first recess, the second side rotatable arm comprising an L-shaped end rotatably inserted into the second recess.