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. 26, 2014
Filed:
Nov. 11, 2010
Shinichi Haneda, Anjo, JP;
Kiyoichi Kita, Okazaki, JP;
Kyousuke Matsui, Chiryu, JP;
Tamaki Obayashi, Toyama, JP;
Shinichi Haneda, Anjo, JP;
Kiyoichi Kita, Okazaki, JP;
Kyousuke Matsui, Chiryu, JP;
Tamaki Obayashi, Toyama, JP;
Aisin Seiki Kabushiki Kaisha, Kariya-shi, Aichi-ken, JP;
Aisin Keikinzoku Kabushiki Kaisha, Imizu-shi, Toyama-ken, JP;
Abstract
A shock absorber includes a cylindrical small diameter portion, a cylindrical large diameter portion, and an annular step portion that connects the small diameter portion and the large diameter portion to each other. The shock absorber absorbs load applied thereto through plastic deformation that starts at the annular step portion thereby absorbing impact energy. In the deformation, the small diameter portion is folded back into the large diameter portion. The large diameter portion has protrusions, which extend in the axial direction and protrude radially outward. Therefore, the shock absorber stabilizes turning deformation and is capable of efficiently absorbing impact energy. A bumper device for a vehicle is also provided.