A weight detection sensor disposed in a fixing unit fixing a seat side fixing member to a floor side fixed member and measuring a load of a passenger sitting in the seat, includes: a strain body fixed to both end portions of a mounting surface formed on one of the floor side fixed member and the seat side fixing member and arranged in the fixing unit; a connection member fixed to a central portion of the strain body in a vertical direction and fixed to the other one of the floor side fixed member and the seat side fixing member; a strain detection element unit including first to fourth strain detection elements; and a Wheatstone bridge circuit where the first and third strain detection elements are arranged on sides facing each other and the second and fourth strain detection elements are arranged on sides facing each other.
Weight detection sensor and vehicle seat apparatus including plural strain detection elements
2016-07-26
Patent
Electronic Resource
English
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / G01G Wägen , WEIGHING / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE |
European Patent Office | 2016
|Weight detection mechanism, safety seat and weight detection method
European Patent Office | 2022
|Attachment structure of weight sensor for seat occupant detection
European Patent Office | 2015
|