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:
Aug. 31, 1976
Filed:
Jul. 29, 1975
Hirozi Yamada, Kyoto, JA;
Hiroshi Ogawa, Kodaira, JA;
Satoru Aono, Higashi-Murayama, JA;
Hironori Hirano, Akigawa, JA;
Bridgestone Tire Company Limited, Tokyo, JA;
Abstract
A testing machine for a tire on an imitation road in which a tire to be tested is urged against a crawler with the aid of a cantilever arm connected through a crosshead to a lifting and lowering disc engaged with screw threaded rods rotatably mounted in a machine frame. The crawler is composed of an endless chain and a road surface forming rods detachably mounted on the endless chain and replaceable by new rods made of different kind of material. In the crosshead are incorporated slip and camber angle setting mechanisms. Provision is made of load cells such as a strain gauge operatively connected to a tire supporting shaft, driving and driven shafts of the crawler and a guide rail of the crawler and for detecting a vertical load subjected to the tire, a torque for driving the crawler under various load conditions and a transverse component of force subjected to the crawler when the tire having a given slip angle or a camber angle is urged against the crawler.