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:
Mar. 12, 2019
Filed:
Jul. 16, 2015
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Takahiro Fujimoto, Kobe, JP;
Hideki Minami, Kyoto, JP;
Shingo Abe, Amagasaki, JP;
Masanori Nakae, Sanda, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Abstract
This soundproof wheel includes a soundproofing device () which is mounted to an inner peripheral surface () of a rim section () of the wheel. The soundproofing device () is provided with: a fixing ring () which is fitted in and fixed to a groove () formed in the inner peripheral surface (); a first elastic body section (A) which is stuck to an outer peripheral surface () of the fixing ring (), is disposed within the groove (), and has a plurality of first elastic body pieces; an additional mass section () which is stuck to a side of the first elastic body section (A) opposite to the fixing ring (), is disposed within the groove (), and has a plurality of additional mass pieces; and a second elastic body section (B) which is stuck to a side of the additional mass section () opposite to the first elastic body section (A), is disposed within the groove (), and has a plurality of second elastic body pieces. The soundproofing device () includes a plurality of dynamic vibration absorbers. Each of the dynamic vibration absorbers has first and second elastic body pieces and an additional mass piece. This soundproof wheel allows for significant reduction in wheel vibration noise and is highly durable.