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:
Mar. 07, 2023

Filed:

Jan. 18, 2022
Applicant:

Darfon Electronics Corp., Taoyuan, TW;

Inventors:

Po-Chun Hou, Taoyuan, TW;

Chin-Hung Lin, Taoyuan, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 3/12 (2006.01); H01H 13/704 (2006.01); H01H 9/02 (2006.01);
U.S. Cl.
CPC ...
H01H 3/125 (2013.01); H01H 9/02 (2013.01); H01H 13/704 (2013.01); H01H 2009/0278 (2013.01); H01H 2233/07 (2013.01);
Abstract

A keyswitch includes a base plate, a keycap, a balance bar, at least one buffer layer, and a membrane switch layer disposed on a base plate. A linking portion of the base plate protruding upward penetrates through the membrane switch layer such that a contact portion of the membrane switch layer is located proximate to the linking portion. A connecting section of the balance bar passes through a through hole of the linking portion. The at least one buffer layer is formed on a lower surface of the contact portion, and extends along a first lateral path and a second lateral path. The contact portion supports the connecting section to abut against a top wall of the linking portion. When the keycap moves upward and downwards, the connecting section pivotally slides on the contact portion, between the first lateral path and the second lateral path.


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