| 摘要 |
A retractable step construction with a drive means for achieving powered or automatic retraction and deployment in motor vehicles to provide access onto or into the motor vehicle such as an emergency apparatus, for example a fire truck, usable in areas having limited vertical dimensions. This construction includes a housing assembly with guide channels adapted to receive a step assembly movably mounted thereinto controlled by the inclusion of a linkage assembly connected to the drive means and the step for powering deployment and retraction thereof.
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