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.

Date of Patent:
Oct. 03, 1995

Filed:

Apr. 19, 1993
Applicant:
Inventors:

Masato Hirose, Saitama, JP;

Hiroshi Gomi, Saitama, JP;

Hideaki Takahashi, Saitama, JP;

Toru Takenaka, Saitama, JP;

Masao Nishikawa, Saitama, JP;

Tadanobu Takahashi, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25J / ; G05B / ;
U.S. Cl.
CPC ...
31856812 ; 3185681 ; 31856822 ; 901-1 ; 180-81 ; 180-86 ; 395 95 ;
Abstract

A legged mobile robot having a body and two legs each connected to the body. The robot is quipped with a mechanism for absorbing and moderating impacts produced by external forces during footfall or the like. The mechanism includes an elastic member interposed between the body and legs, or interposed between the leg links, or interposed between the distal end of the legs and foot portions. The robot further has a foot structure for enhancing the ground gripping force and absorbs the impacts. For enhancing the gripping force, the foot sole is provided, for example, with a first elastic member and second elastic member sandwiching a plate spring therebetween. The first elastic member absorbs the impacts, while the second elastic member enhancing the gripping force. The plate spring restrict the deformation of the elastic members in the direction vertical to the foot sole. The invention further includes a locomotion control system using one shock absorbing mechanism.


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