Sumitomo Riko Company Limited

Takanori Murase

Katsuhiko Nakano

Masaki Nasu

Hiroyuki Nakajima

A vibration presentation device includes: an electrostatic or piezoelectric actuator; a first elastic body laminated on the actuator; a second elastic body laminated on the actuator on the opposite side to the first elastic body; an electrostatic or piezoelectric sensor disposed around the actuator; a cover that holds the first elastic body and the second elastic body such that the first elastic body and the second elastic body are compressed more than the actuator, the cover transmitting, when a pressing force in the laminate direction is applied to the cover from the outside, the pressing force to a sensor, and vibrating by vibration generated by the actuator; and a control device that drives the actuator when the sensor detects the pressing force.

Vibration presentation device

To provide a tactile vibration applying device that efficiently outputs vibrations using an electrostatic or piezoelectric actuator. The tactile vibration applying device includes the electrostatic or piezoelectric actuator formed in a flat shape, and expanding and contracting in a thickness direction, a first elastic body having an elastic modulus smaller than an elastic modulus of the actuator in the thickness direction and disposed to contact a surface of the actuator on a side of the first electrode, and a first cover covering a surface of the first elastic body opposite to a surface of the first elastic body contacting the actuator, pressing the actuator and the first elastic body in the thickness direction of the actuator, and holding the first elastic body in a state that the first elastic body is compressed more than the actuator.

Tactile vibration applying device

Provided is an electrostatic transducer () in which an electrostatic unit () is formed so as to be flat and wound into a roll, from a first laminate sheet () and a second laminate sheet (). The first laminate sheet () is provided with a first electrode sheet () and two first dielectric sheets () laminated onto both surfaces of the first electrode sheet (). The second laminate sheet () is provided with a second electrode sheet () and two second dielectric sheets () laminated onto both surfaces of the second electrode sheet ().

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Aichi, Japan

Takanori Murase