| 摘要 |
A two-position bumper for off the road vehicles is movable from a first position adjacent the vehicle frame to provide maximum ground clearance for cross country travel, to a second position deployed rearward and downward from the vehicle frame to serve as a conventional bumper to meet other vehicle bumpers at a proper level and to provide a trailer hitch at a suitable level for towing trailers. The two-position bumper comprises a cam plate affixed to the vehicle frame having a longitudinal slot formed therein and a pivoting longitudinal member having a front end, and a rear end with a cam follower pin laterally projecting from the front end to slidingly and pivotally engage the cam slot to support the front end of the longitudinal member. A rear pivot support is attached to the vehicle frame a distance rearward from the cam plate. An intermediate support arm is pivotally supported at an upper end by the rear pivot support and pivotally attached at a lower end to the pivoting longitudinal member. A bumper is attached to the rear end of the longitudinal member with the bumper movable from the first position against the frame to the second position deployed downward and rearward from the frame.
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