Patent Number: 7,762,151

Title: Load detection device

Abstract: A load detection device includes a piezoelectric body unit adapted to be deformed by receiving an electric voltage, the piezoelectric body unit generating an electric charge by receiving an external load, a drive portion applying the electric voltage to the piezoelectric body unit for vibrating thereof, a detection portion detecting the electric charge generated at the piezoelectric body unit, and an adjusting member adjusting a pressure applied to at least one pressure sensing surface provided at the piezoelectric body unit to restrain the vibration of the piezoelectric body unit.

Inventors: Ando; Mitsuhiro (Toyohashi, JP), Tanaka; Hiroyuki (Nagoya, JP), Kogure; Shunsuke (Toyota, JP), Oshima; Kazuhiko (Nagoya, JP)

Assignee: Aisin Seiki Kabushiki Kaisha

International Classification: G01L 1/02 (20060101)

Expiration Date: 7/27/12018