| 摘要 |
PCT No. PCT/EP94/02718 Sec. 371 Date May 8, 1995 Sec. 102(e) Date May 8, 1995 PCT Filed Aug. 16, 1994 PCT Pub. No. WO95/07456 PCT Pub. Date Mar. 16, 1995A device in which two identical mounted assemblies E are assembled by a connecting arm which is provided with ballasting means (7) such that the center of gravity G of the loaded device is located below a straight line ZZ' connecting the centers of rotation of the two assemblies E. The device is rotated to impart a cycloidal movement to the center of gravity G to a given angular position. A method of using such devices for carrying out methods of comparative measurements of resistances to rolling and adherence properties of at least two sets of tires or the same properties on at least two types of travel surfaces.
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