The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2018
Filed:
Sep. 03, 2015
Mazda Motor Corporation, Hiroshima, JP;
Ntn Corporation, Osaka, JP;
Kazuharu Ogawa, Hiroshima, JP;
Shunsuke Sueda, Hiroshima, JP;
Ryo Sawai, Hiroshima, JP;
Masahiro Kawai, Shizuoka, JP;
MAZDA MOTOR CORPORATION, Hiroshima, JP;
NTN CORPORATION, Osaka, JP;
Abstract
A headrest includes a reverse input blocking clutch and a displacement mechanism. The reverse input blocking clutch includes input and output shafts that respectively receive and output rotational torque, an outer ring and a side plate in which rotation is restricted, cylindrical rollers that control blocking of the rotational torque reversely input from the output shaft and transmission of the rotational torque from the input shaft through engagement and disengagement between the outer ring and output shaft, and a cage to retain the cylindrical rollers. The displacement mechanism has one end fixed to stays and another end fixed to a headrest main body positioned at a top of a seat back, and displaces the headrest main body through the rotational torque from the output shaft of the reverse input blocking clutch. The another end of displacement mechanism has the side plate of the reverse input blocking clutch mounted thereto.