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. 04, 2014
Filed:
Nov. 06, 2009
Yoshihisa Matsuoka, Wako, JP;
Yoshihisa Matsuoka, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A coil springis provided in a leg link. In the case where an extent of flexion of the leg linkis not more than a predetermined extent, the coil springapplies, to a third joint, a first biasing force for preventing the extent of flexion of the leg linkfrom decreasing due to gravity acting on a body weight support device A. In the case where the extent of flexion of the leg linkexceeds the predetermined extent, the coil springapplies, to the third joint, a second biasing force for decreasing the extent of flexion, where the second biasing force is larger than the first biasing force and increases with an increase of the extent of flexion. This enables a sufficient support force to be generated when standing up from a half-sitting posture or a crouching posture, without significantly interfering with walking.