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:
Oct. 27, 2020
Filed:
Feb. 15, 2019
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Inventor:
Masayuki Ishibashi, Numazu, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F 15/14 (2006.01); F16F 15/315 (2006.01);
U.S. Cl.
CPC ...
F16F 15/1457 (2013.01); F16F 15/3156 (2013.01); F16F 2224/0208 (2013.01); F16F 2226/02 (2013.01); F16F 2226/04 (2013.01);
Abstract
A torsional vibration damper in which a vibration damping performance is enhanced without increasing a manufacturing cost. A torsional vibration damper damps torsional vibrations by a relative rotation between a rotary member and an inertia body. Hardness of the contact surface of any one of the inertia body and a rolling mass is harder than the contact surface of the other one. Smoothness of the contact surface of any one of the inertia body and the rolling mass is smoother than the contact surface of the other one.