Patent ID: 9194768
Filing Date: 2015-11-24
Classification: G01M

Abstract:
1. A rim assembly which is inserted into an inserting part of a tire testing machine and on which a tire as a test object is mounted, the rim assembly comprising: a first rim on which a first reference surface is formed; a second rim on which a second reference surface is formed; a through-hole which extends to intersect the first reference surface of the first rim, and into which the inserting part is insertable; pins which are erected on one of the first reference surface and the second reference surface, and around outer peripheral surfaces of which groove portions are formed; protruding portions which are formed on the other of the first reference surface and the second reference surface is engageable with the groove portions when the first rim is rotated around an axis of the first rim relative to the second rim in a state in which the second reference surface is caused to face the first reference surface; first supporting members that are provided for the first reference surface; and second supporting members which are provided for the second reference surface, are brought into contact with the first supporting members when the first and second reference surfaces approach each other with the protruding portions disposed inside the groove portions and the protruding portions are separated from opposite side surfaces of the groove portions, and are separated from the first supporting members when the first and second reference surfaces are separated from each other and the protruding portions are engaged with the opposite side surfaces of the groove portions.