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. 29, 2008
Filed:
Aug. 29, 2003
Hiroshi Kudoh, Wako, JP;
Hisashi Katoh, Wako, JP;
Hiroshi Kudoh, Wako, JP;
Hisashi Katoh, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A reduction gear () for a walking assistance system is provided that includes first to third planetary gear mechanisms (Pto P) between an input shaft (Si) connected to a motor () and an output shaft (So), the second planetary gear mechanism (P) being disposed radially outside the first planetary gear mechanism (P) connected to the input shaft (Si), and the third planetary gear mechanism (P) being disposed outside, in the direction of an axis L, the first planetary gear mechanism (P). It is therefore possible, while reducing the speed of rotation of the input shaft (Si) in three stages by the first to the third planetary gear mechanisms (Pto P) and transmitting the rotation to the output shaft (So), to reduce the thickness of the reduction gear () compared with a case in which the first to the third planetary gear mechanisms (Pto P) are disposed so as to be stacked in the direction of the axis (L), thereby improving the appearance when a user is fitted with the walking assistance system.