| 摘要 |
A safety step bumper assembly for a vehicle includes a frame having a base member constructed for fixed attachment to the chassis of a vehicle, an elongated step bumper member mounted upon the frame in a predetermined axial position and a predetermined rotational position, and a pin joining the step bumper member and frame in pivotable relationship. The step bumper member pivots, relative to the frame, from, and returns to, the predetermined rotational position. The safety step bumper assembly defines a slot, and the pin member engages in the slot and moves therein between a first pin position spaced from the chassis, with the step bumper member in the predetermined axial position, and a second pin position relatively closer to the chassis. The assembly also includes, e.g. a leaf spring for biasing the step bumper member toward the predetermined axial and rotational position. The safety step bumper assembly is thereby adapted for pivoting and sliding movement of the step bumper member, relative to the fixed frame on the chassis, from the predetermined axial and rotational positions, in a manner to adjust to otherwise destructive forces applied to the step bumper member by engagement upon a dock or other obstruction.
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