US 12,080,491 B2
Keyboard and key structure thereof
Hung-Chi Chen, New Taipei (TW)
Assigned to Acer Incorporated, New Taipei (TW)
Filed by Acer Incorporated, New Taipei (TW)
Filed on Nov. 29, 2022, as Appl. No. 18/071,514.
Claims priority of application No. 111124591 (TW), filed on Jun. 30, 2022.
Prior Publication US 2024/0006133 A1, Jan. 4, 2024
Int. Cl. H01H 13/20 (2006.01); H01H 13/14 (2006.01); H01H 13/70 (2006.01)
CPC H01H 13/20 (2013.01) [H01H 13/14 (2013.01); H01H 13/70 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A key structure of a keyboard, comprising:
a base;
at least one force sensing membrane, disposed on the base;
a scissors mechanism, a side of the scissors mechanism is movably leaned against the base and located on the at least one force sensing membrane;
a key cap;
a bracket set, assembled to the key cap, another side of the scissors mechanism is pivoted to the bracket set;
a first sleeve, a portion of the first sleeve is assembled between the key cap and the bracket set, and another portion of the first sleeve passes through the bracket set;
a second sleeve, movably socketed in the first sleeve;
a spring, leaned against the second sleeve and the key cap; and
a pressing member, disposed at a bottom of the second sleeve, wherein when the key structure is not pressed, the pressing member contacts the force sensing membrane, and the first sleeve moves toward the force sensing membrane continuously along with the key cap and the bracket set during a process of pressing the key structure, the spring is compressed and the force sensing membrane is deformed through the spring, the second sleeve, and the pressing member until the second sleeve abuts against the key cap.