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:
Dec. 27, 2011
Filed:
Mar. 30, 2007
Jun Ashihara, Wako, JP;
Yasushi Ikeuchi, Wako, JP;
Hiroshi Kudoh, Wako, JP;
Yutaka Hiki, Wako, JP;
Tatsuya Noda, Wako, JP;
Jun Ashihara, Wako, JP;
Yasushi Ikeuchi, Wako, JP;
Hiroshi Kudoh, Wako, JP;
Yutaka Hiki, Wako, JP;
Tatsuya Noda, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A walk assistance device capable of transmitting a force generated by a leg link to a user's trunk via a load transmit portion, wherein the leg link includes an upper first link portion connected to the load transmit portion via a first joint portion, a lower second link portion connected to a foot attachment portion via a second joint portion, a middle third joint portion connecting the first link portion to the second link portion such that a distance between the first joint portion and the second joint portion is variable, and a driving source that drives the third joint portion. The moment of inertia around the first joint portion of the leg link is reduced to decrease a load on the user's leg in walking. The driving source is disposed above the third joint portion of the first link portion so that the center-of-gravity of the entire leg link is located above the third joint portion. In the case where the driving source includes an electric motor and a reduction gear, the electric motor is disposed above the reduction gear.