Importance

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Abstract

A clamping device for clamping a vehicle wheel on a threaded clamping shaft of a test machine, such as, a balancing machine. The clamping device includes a basic body positionable on the clamping shaft and a pair of swivelling levers pivotally mounted on the basic body. Each of the levers has an extremity forming a threaded section movable into and out of engagement with the threaded clamping shaft and an actuating lever for controlling engagement of the threaded segment with the clamping shaft. The levers have portions thereof cooperating with each other in such manner that movement of one of the levers results in conjoint movement of the other of the levers. The basic body has handles formed integrally therewith or attached thereto that protrude away from the axis of the threaded shaft. The handles have recessed portions for receiving the actuating ends of the swivelling levers. The swivelling levers have stop portions engageable with portions of the basic body to limit engagement of the threaded segments with the clamping shaft. The distance between the pivotal connections of the swivelling levels to the basic body is less than the distance between the threaded segments, when in a clamping position. Springs are provided for biasing the threaded segments into engagement with the clamping shaft.

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First Claim