US 12,239,901 B2
Gamepad and control stick feedback force device thereof
Zhenzhen Liu, Shandong (CN)
Assigned to GOERTEK INC., Shandong (CN)
Appl. No. 17/904,988
Filed by GOERTEK INC., Shandong (CN)
PCT Filed Oct. 31, 2020, PCT No. PCT/CN2020/125621
§ 371(c)(1), (2) Date Aug. 25, 2022,
PCT Pub. No. WO2021/169375, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 202010130072.3 (CN), filed on Feb. 28, 2020.
Prior Publication US 2023/0139154 A1, May 4, 2023
Int. Cl. A63F 13/24 (2014.01); A63F 13/285 (2014.01)
CPC A63F 13/24 (2014.09) [A63F 13/285 (2014.09)] 20 Claims
OG exemplary drawing
 
1. A control stick feedback force device of a gamepad, comprising a control stick (1) that is configured to accept a user's operation and is rotatably installed in a casing (2) of the gamepad, wherein
the control stick feedback force device further comprises: a front friction plate (4) and a rear friction plate (5) that are disposed oppositely, and a pressing device that is configured to provide a pressing force between the front friction plate (4) and the rear friction plate (5), the rear friction plate (5) is fixedly connected with a rotating shaft (3) of the control stick (1), the front friction plate (4) is connected with a torque output device that is configured to drive the front friction plate (4) to rotate, and the front friction plate (4) applies a torque to the rear friction plate (5) under the pressing force of the pressing device to form a feedback force to the control stick (1).