| 摘要 |
In order to provide increased ramp clearance for the front end of a bus body forwardly of the front wheels, the underbody of the bus is angled upwardly and forwardly toward the lower edge of the front bumper from a transverse line just forwardly of the front wheel wells, and a lower front step for the bus is hingedly mounted at its rear end to swing between a raised, stowed position, flush with the angled underbody, and a lowered, deployed position with the step horizontal and supported to carry the weight of passengers boarding and leaving the bus. Mechanism is provided for operating the step synchronously with the opening and closing of the bus front doors.
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