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Title:
TRAVEL DEVICE FOR MOVING CHAIR
Document Type and Number:
Japanese Patent JPH04331673
Kind Code:
A
Abstract:

PURPOSE: To reduce the extent of vertical motion being produced when a moving chair travels on an uneven ground surface as little as possible, and miniaturize the whole system as well as to achieve the promotion of simplification in structure.

CONSTITUTION: A travel device 12, traveling and moving a chair body 11, is composed of a symmetrical pair of traveling frames 20 and two grounding legs 21, 22 slidingly moving around these frames. In this case, each traveling frame is formed into long size along the traveling direction and has each endless rail part 20a being serially formed by each curved end edge parts at both upper and lower side edges and both end sides. In addition, these plural grounding legs are assembled and kept up so as to be slid and moved along each endless rail part at each traveling frame peripheral edge. In succession, at least more than two legs out of these plural grounding legs are constituted so as to be always situated in a lower edge at the ground side of the traveling frame and to be grounded.


Inventors:
OCHIAI SHIGEMI
Application Number:
JP13030891A
Publication Date:
November 19, 1992
Filing Date:
May 07, 1991
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
B62D55/075; A61G5/00; (IPC1-7): A61G5/00; B62D55/075
Attorney, Agent or Firm:
Masaki Yamakawa



 
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