| 摘要 |
An improved device for immobilizing or impounding a land or air vehicle having at least one wheel assembly against movement on the ground, wherein the device includes a pair of pivotal jaws for embracing the wheel assembly, with a pair of inwardly directed teeth carried by the jaws for engaging opposed portions of the wheel rim. An adjustable bolt is provided for limiting the degree of pivotal movement of the jaws to permit the device to accommodate the size of a given wheel assembly and secure the device in a position of use. A locking mechanism prevents theft or unauthorized removal of the vehicle by denying access to the adjustable bolt.
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