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:
Sep. 06, 2011

Filed:

Jan. 22, 2010
Applicants:

Shinji Ishii, Yokohama, JP;

Ikuo Yamano, Yokohama, JP;

Inventors:

Shinji Ishii, Yokohama, JP;

Ikuo Yamano, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A travel device includes a plurality of wheels disposed parallel to one another, a step plate mounted between the wheels, a handle mounted to the step plate, and a driving motor that allows the step plate and handle to tilt in a roll axis direction. The device further includes a control unit that drives the motor so as to maintain the step plate horizontal or the handle vertical. The device also includes a measurement unit that measures a shift operation of the step plate or the handle. The plurality of wheels may change direction based on the value determined by the measuring unit.


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