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. 24, 2004
Filed:
Jul. 26, 2002
Takahiro Aoi, Komaki, JP;
Masaaki Hamada, Konan, JP;
Hideki Oshima, Komaki, JP;
Rentaro Kato, Kasugai, JP;
Tokai Rubber Industries, Ltd., Komaki, JP;
Abstract
Disclosed is a dynamic damping device for a steering system of an automotive vehicle, which equipped with a telescopic steering column, including a plurality of mutually independent dynamic dampers, each including a mass member and a spring member for elastically supporting the mass member to the steering column or wheel. At least two of natural frequencies of the plurality of dynamic dampers are tuned to a higher and a lower frequency range in relation to a central value of a range of variation in a natural frequency of the steering wheel due to an expansion or contraction of the telescopic steering column, within the range of vibration in the natural frequency of the steering wheel. Further, a difference between adjacent ones of the natural frequencies of the plurality of dynamic dampers is made held within 10-40% of the central value of the range of vibration in the natural frequency of the steering wheel.