The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 28, 2016

Filed:

Dec. 16, 2013
Applicants:

Darfon Electronics (Suzhou) Co., Ltd., Suzhou, Jiangsu Province, CN;

Darfon Electronics Corp., Taoyuan, TW;

Inventor:

Chien-Shih Hsu, Taoyua, TW;

Assignees:

DARFON ELECTRONICS (SUZHOU) CO., LTD., New District, Suzhou, Jiangsu Province, CN;

DARFON ELECTRONICS CORP., Gueishan, Taoyuan, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01H 13/70 (2006.01); H01H 3/12 (2006.01); H01H 13/7065 (2006.01);
U.S. Cl.
CPC ...
H01H 3/122 (2013.01); H01H 13/7065 (2013.01); H01H 2237/00 (2013.01);
Abstract

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.


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