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:
Sep. 23, 2025
Filed:
Dec. 16, 2022
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Masayuki Ishibashi, Numazu, JP;
Shinichiro Suenaga, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A torsional vibration reducing device includes: a mass damper configured to reduce ripples of torque by inertia moment of an inertial body; a spring damper configured to reduce ripples of torque to be transmitted between an input-side rotational member and an output-side rotational member by an elastic body being compressed are placed side by side in a predetermined axis direction; and a bolt configured to fix the inertial body and the input-side rotational member to each other in the predetermined axis direction by being inserted from the input-side rotational member side. The input-side rotational member includes a receiving portion recessed toward the mass damper side such that at least part of a head of the bolt in its height direction is received by the receiving portion.