| 摘要 |
<p>A wheel blocking device (1) includes a pressure foot (5) which is attached to one end of a pressure foot arm (7). The other end of the pressure foot arm (7) is pivotally connected to either the frame (13) or an axle of the vehicle. One end of an actuator (3, 53) is connected to the pressure foot arm (7) and the other end is connected to either the frame (13) or an axle of the vehicle. When the actuator (3, 53) actuates, the pressure foot (5) is forced into engagement with a tire (25) of the vehicle. The pressure foot (5) indents the tire (25) to a predetermined degree, thereby providing a positive mechanical lock to prevent rotation of the tire (25). A control system (101, 251) allows the vehicle's driver to actuate the wheel blocking device while seated in the vehicle's cab.</p> |
