Brakes – Vehicle – On ground
Patent
1988-07-29
1989-02-14
Butler, Douglas C.
Brakes
Vehicle
On ground
70 14, 70 18, 70225, 70226, 410 30, B60T 300
Patent
active
048040703
ABSTRACT:
An improved vehicle locking wheel chock comprising a pair of wedge shaped chocks having flat bottom ground contacting surfaces each rigidly affixed to respective end portions of a spacing bar with the chock bottom surfaces in a coplanar relationship and the oblique wedge surfaces of the respective chocks in a facing relationship spaced apart a distance that the space between the respective chock oblique wedge surfaces defines the region occupied by the vehicle wheel and tire. Each chock rotatably supports a lockable retaining mechanism comprising a support rod extending transversely of the chock with a pair of elongated retaining arms rigidly affixed to opposite ends of the rod to extend transversely of the rod axis and spaced apart a distance exceeding the width of a vehicle wheel and tire. Each rod is pivotally supported by a chock for rotation about the longitudinal axis of the rod between an open position in which both retaining arms lie outside the face of the wheel region space defined between the oblique wedge surfaces of the respective chocks and a closed position in which both retaining arms lie across the face of the wheel region space defined between the oblique wedge surfaces of the respective chocks. The outer ends of the retaining arms of both retaining mechanisms positioned on the same side of the pair of chocks being configured for being mutually coupled together when the retaining arms are in the closed position.
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patent: 4031726 (1977-06-01), De Jager
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