US 11,726,598 B2
Tactile presentation device
Harue Sasaki, Kanagawa (JP); Hiroshi Haga, Kanagawa (JP); and MingJi Hsu, Xiamen (CN)
Assigned to Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai (CN)
Filed by Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai (CN)
Filed on Jun. 17, 2022, as Appl. No. 17/843,065.
Claims priority of application No. 2021-104904 (JP), filed on Jun. 24, 2021; and application No. 2022-048664 (JP), filed on Mar. 24, 2022.
Prior Publication US 2022/0413676 A1, Dec. 29, 2022
Int. Cl. G06F 3/041 (2006.01); H03K 17/96 (2006.01)
CPC G06F 3/04142 (2019.05) [H03K 17/9625 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A tactile presentation device comprising:
a movable part that has a first main surface and presents tactile to a user by being displaced in a predetermined one axial direction parallel to the first main surface;
a base that supports the movable part in a displaceable manner;
a guider that connects the base and the movable part, and regulates a displacement direction of the movable part in the one axial direction by sliding in the one axial direction; and
one or more actuators that displace the movable part in the one axial direction from one end side of the movable part in the one axial direction, wherein
when the number of actuators is one, the actuator is located on a symmetry axis of the movable part parallel to the one axial direction,
when the number of actuators is two and the two actuators have different outputs, the two actuators are disposed at positions, where a ratio of a vertical distance between one of the actuators and the symmetry axis to a vertical distance between a remaining one of the actuators and the symmetry axis is an inverse ratio of a ratio of output of one of the actuators to output of the remaining one of the actuators, with the symmetry axis interposed between the two actuators, and
when the number of actuators is two or more and the two or more actuators have a same output, the plurality of the actuators is located symmetrically with respect to the symmetry axis.