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:
Aug. 02, 2022
Filed:
Apr. 27, 2020
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aisin Aw Co., Ltd., Anjo, JP;
Aisin Fukui Corporation, Echizen, JP;
Masayuki Ishibashi, Numazu, JP;
Hideyuki Nishida, Sunto-gun, JP;
Yoichi Oi, Anjo, JP;
Takuya Yoshikawa, Fukui, JP;
Katsunori Tanaka, Fukui, JP;
Tomoyuki Hiramoto, Sabae, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
AISIN AW CO., LTD., Anjo, JP;
AISIN FUKUI Corporation, Echizen, JP;
Abstract
A torsional vibration damper that a torsional vibration damper having a planetary gear unit, and a manufacturing method of the torsional vibration damper for limiting damages on gears of the planetary gear unit due to dimension errors. In the planetary gear unit, at least one of a sun gear, a ring gear, and a set of planetary gears is/are formed by a press forming method. The gear formed by the press forming method is engaged with the remaining gears in such a manner that a thinner portion of each tooth is individually engaged with a thicker portion of the adjacent teeth of the remaining gears.