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:
Mar. 20, 2012
Filed:
Feb. 24, 2009
Tetsuya Yoshikawa, Takasago, JP;
Yasuhiko Fujieda, Takasago, JP;
Tetsuya Yoshikawa, Takasago, JP;
Yasuhiko Fujieda, Takasago, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
Provided is a tire testing machine capable of measuring a force generated in a tire with high precision. The tire testing machine includes a spindle shaft () for holding a tire (T), a housing () for rotatably supporting the spindle shaft () through a rolling bearing (), a running device () having a surface rotated by rotational driving and imparting a rotational force to a tire contacting the surface, and a measurement device () which is provided in the housing () and measures a force and moment generated in the spindle shaft () when the tire (T) is running. Furthermore, the tire testing machine includes a torque canceller () for preventing the spindle shaft () from such an impact that rotational friction torque (My) generated by rotational friction, which is received by the spindle shaft () in the housing when the spindle shaft () rotates, is imparted onto the shaft (). The torque canceller () is equipped with a motor () for the spindle shaft, which imparts a torque for cancelling the impact of the rotational friction torque (My) to the spindle shaft ().