公开(公告)号：US20210357037A1

公开(公告)日：2021-11-18

申请号：US17308245

申请日：2021-05-05

Applicant: Darfon Electronics Corp.

Inventor： Chih-Hsiang CHIANG ,  Chen YANG ,  Yu-Chun HSIEH ,  Po-Yueh CHOU

IPC: G06F3/02 ,  G06F3/01 ,  H01H13/7065

Abstract: A keyboard includes a cover plate having a plurality of first keyholes, an adjustment mechanism disposed under the cover plate, and a plurality of keyswitches. The adjustment mechanism includes an adjustment frame and a plurality of adjustment portions. The adjustment frame includes a plurality of ribs defining a plurality of second keyholes corresponding to the plurality of first keyholes, respectively. Each of the adjustment portions is proximate to a corresponding one of the second keyholes. Each of the keyswitches includes a tactile feedback member and is located in corresponding first and second keyholes, so that the adjustment portion corresponds to the tactile feedback member of its corresponding keyswitch. The adjustment frame is movable relative to the cover plate, so that each of the adjustment portions drives a portion of the tactile feedback member to move, to change tactile feedback of the keyswitches.

公开(公告)号：US20190393003A1

公开(公告)日：2019-12-26

申请号：US16448282

申请日：2019-06-21

Applicant: Darfon Electronics Corp.

Inventor： Yung-Chih WANG ,  Chia-Hung LIU ,  Yu-Chun HSIEH ,  Chen YANG

IPC: H01H13/85 ,  H01H13/52 ,  H01H13/04 ,  H01H13/14 ,  H01H13/02

Abstract: A keyswitch structure includes a base having a positioning means, an cover combined with the base, a plunger with an cam portion movably coupling with the cover relative to the base, a restoring unit disposed between the base and the plunger to provide a restoring force to enable the plunger to move along a direction away from the base, a tactile feedback member having a positioning portion positioned by the positioning means and an extending arm extending across a moving path of the cam portion, and an adjusting unit being movable to drive the positioning portion to shift, so that the tactile feedback member has a first deformation or a second deformation, and a pressing force required for the cam portion to pass the extending arm when the plunger moves toward the base is changed.