Key structure
AssigneeChicony Electronics Co., Ltd.
InventorsDian-Yu Lin, Chao-Chin Hsieh
Life of this patent
Estimating the term…
Abstract
A key structure includes a circuit board, a keycap, an elastic member and a metal member. The keycap has a bottom facing the circuit board. The elastic member is disposed between the circuit board and the keycap. The elastic member includes a dome portion, a hollow portion, and a contact pillar. The dome portion touches the bottom of the keycap. The hollow portion is located inside of the dome portion. The contact pillar is located in the hollow portion, and the contact pillar extends from the dome portion to the circuit board. The metal member covers the outside of the contact pillar. The metal member comprises a trigger portion, and the trigger portion is a convex portion extending toward the circuit board.
Claims12
A key structure, comprising:
- a circuit board;
- a keycap having a bottom facing the circuit board;
- an elastic member disposed between the circuit board and the keycap, the elastic member comprising:
- a dome portion touching the bottom of the keycap;
- a hollow portion located in the dome portion;
- and
- a contact pillar located in the hollow portion, the contact pillar extending from the dome portion to the circuit board;
- and
- a metal member only covering an outside of the contact pillar and not touching an inside of the dome portion, the metal member comprising a central portion, a side wall portion and a trigger portion, the side wall portion fitting the outside of the contact pillar, and the trigger portion being a convex portion extending from the central portion toward the circuit board.
Dependencies are inferred from the claim text.