| 摘要 |
A wheel wrench with crank, which is curved, with one arm substantially greater than the other. The greater arm is equipped at its free end with a countersinking and receives inside it a flexible sphere connected to a crank arm equipped with an external finishing piece. The crank arm is able to occupy the inner or outer position of the tube, and the sphere is controlled between the curved zone of the wrench and individual facing rivets of the countersunk zone. The finishing piece of the crank arm is housed in individual front grooves of the countersinking, in a position in which the sphere is at the bottom, and is parallel to the smaller end of the wrench in the position in which the sphere is in the region of the countersinking. <IMAGE>
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