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:
Apr. 19, 2011
Filed:
Oct. 27, 2008
Jun Chida, Tokyo, JP;
Kazuki Okamoto, Tokyo, JP;
Nozomu Munemura, Yokohama, JP;
Atsuo Matsumoto, Yokohama, JP;
Jun Chida, Tokyo, JP;
Kazuki Okamoto, Tokyo, JP;
Nozomu Munemura, Yokohama, JP;
Atsuo Matsumoto, Yokohama, JP;
Fuji Heavy Industries, Ltd., Tokyo, JP;
NHK Spring Co., Ltd., Yokohama-shi, JP;
Abstract
A seat back has a seat back frame, a plane spring structure, and a headrest provided at the upper end of a seat back frame. The plane spring structure has left and right side wires, and horizontal wires extending in the horizontal direction. Connection wires are provided between the seat back frame and plane spring structure. First end portions and second end portions of the connection wires function as detachable portions. At least one of these detachable portions is detached from the seat back frame or plane spring structure by the load applied to the seat back, when a vehicle is bumped from behind.