| 摘要 |
<p>The present invention is a type of coasting device for vehicle provided between a half shaft and a drive hub with external thread. A forward running nut and an astern running nut, each with a cone-surface, are mounted on the threaded section of the drive hub. An outer casing is coaxially provided at the outer of the drive hub, the internal cone-surfaces of the casing matching the external cone-surfaces of the two nuts to form an overrunning clutch and a self-locking device. Thus, the inertia energy of vehicles can be sufficiently utilized, the relief of harmful gases from engines reduced, the wear of machine parts decreased and the driver's labour eased. <IMAGE></p> |
