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.
Patent No.:
Date of Patent:
Mar. 29, 2022
Filed:
Apr. 23, 2021
Primax Electronics Ltd., Taipei, TW;
Chia-Wei Chang, Taipei, TW;
Lei-Lung Tsai, Taipei, TW;
PRIMAX ELECTRONICS LTD., Taipei, TW;
Abstract
A key structure includes a keycap and a scissors-type connecting element. The scissors-type connecting element is connected with the keycap. The scissors-type connecting element includes an inner frame and an outer frame. A first end of the inner frame is connected with the keycap. The outer frame is connected with the inner frame and swingable relative to the inner frame. A first end of the outer frame is connected with the keycap and located near a second end of the inner frame. A second end of the inner frame includes a first protrusion. A first end of the outer frame includes a second protrusion near the first protrusion. The first protrusion includes a first knocking surface. The second protrusion includes a second knocking surface. While the keycap is pressed down, the first knocking surface and the second knocking surface knock on each other.