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:
Sep. 14, 2010
Filed:
Jan. 15, 2008
Shigefumi Sasaoka, Yokohama, JP;
Hiroyuki Kondou, Tokyo, JP;
Takehisa Nagano, Tokyo, JP;
Ono Sokki Co., Ltd., Yokohama-shi, JP;
Abstract
A front wheel is placed on a lifting table, which is rotated by an actuator together with the front wheel. By rotating the lifting table by the actuator, the front wheel is rotated under constraint of a steering mechanism of an automobile. The rotation angle of an arm with respect to a base is detected by an encoder provided at an end of an extendable rod which pivotally supports the arm in a rotatable manner. The rotation angle of the base is detected by a second encoder to determine the rotation angle θ2−θ1 and rotation radius Lt of the front wheel under constraint of the steering mechanism. Based on reaction force F detected by a load cell, rotation radius Lt, and rotation angle θ2−θ1, friction torque Tt is determined.