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:
Nov. 14, 2006
Filed:
Aug. 04, 2004
Takanobu Kamura, Hiroshima, JP;
Masaru Chikita, Hiroshima, JP;
Takanobu Kamura, Hiroshima, JP;
Masaru Chikita, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
The present invention is a floor panel structure of a car body where an automobile floor comprises a floor panel that is connected to the frame members of the car body and also has a vibration mode adjusting structure that suppresses the generation of acoustic emission by generating 2×1 mode vibration in a predetermined frequency band. The floor panel has a non-rectangular vibration region and the vibration mode adjusting structure of the floor panels the vibration mode adjusting structure of the floor panel comprises a vibration adjusting part that defines the vibration distribution and vibration amplitude of the antinodes of 2×1 mode vibration, and the vibration adjusting part is disposed within the a non-rectangular vibration region so as to make the vibration volumes of two antinodes of vibration in 2×1 mode nearly the same.