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:
Jul. 26, 2005
Filed:
May. 05, 2004
Etsunori Fujita, Hiroshima, JP;
Yutaka Sakamoto, Hiroshima, JP;
Kazuyoshi Chizuka, Hiroshima, JP;
Seiji Kawasaki, Hiroshima, JP;
Yasuhide Takata, Hiroshima, JP;
Yumi Ogura, Hiroshima, JP;
Shigehiko Kaneko, Kawaguchi, JP;
Etsunori Fujita, Hiroshima, JP;
Yutaka Sakamoto, Hiroshima, JP;
Kazuyoshi Chizuka, Hiroshima, JP;
Seiji Kawasaki, Hiroshima, JP;
Yasuhide Takata, Hiroshima, JP;
Yumi Ogura, Hiroshima, JP;
Shigehiko Kaneko, Kawaguchi, JP;
Delta Tooling Co., Ltd., Hiroshima, JP;
Abstract
In order to improve vibration absorbency and impact absorbency, the seat structure includes a swing member provided in a manner to be able to swing at least back and forth on a rear frame member positioned around the rear of a seat cushion, a pelvis supporting member connected to the swing member at the vicinity of the lower portion of the pelvis supporting member and disposed behind the pelvis of a seated person, and coil springs as an elastic member to support the pelvis supporting member biasing in the direction pushing forwards in a normal seating state. Accordingly, vibration inputted from the seat back side and as if patting on the back of the human body can be absorbed by the pelvis supporting member supported elastically. Besides, since the pelvis supporting member is connected to the rear frame member via the swing member, since pivoting movement in the back-and-forth direction of the pelvis supporting member is performed with a connecting portion of the swing member and the rear frame member as the center, and the radius of gyration is large, the vicinity of the lower portion of the pelvis supporting member never presses the pelvis.