| 摘要 |
An emergency brake device (R) for stopping the rear wheels of a vehicle comprises a wedge assembly (2) including a frame (34) and a resilient wedge (26) carried by the frame secured to the underside of the vehicle. The wedge assembly is movable from a stored position to an operative position wherein the wedge is between the wheel and ground to stop the vehicle. The wedge is substantially triangular formed by an inclined arcuate surface (72), for engaging against the wheel, a horizontal (77), and a vertical (79) planar surface. The arcuate and vertical surfaces terminate into a longitudinal projection (74) that engages the wheel when the wage is in the operative position, The wedge assembly has a flap (60) that is disposed under the wheel to pull the wedge horizontally, and its leading edge portion is secured to the vertical surface to pull the wedge downwardly.
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