Retractable van side door ramp

摘要: An elongated ramp is provided for longitudinal extension and retraction relative to a predetermined margin of support structure therefor. The includes longitudinally short base end section considerably longer outer the include coacting guide structures supporting guiding during thereof, being automatically disengaged from responsive approaching its fully extended position. In first form ramp, biasing operatively connected between sections yieldingly resisting downward swinging as it disengages operative counteract major portion, only, force gravity acting upon swing thereof downwardly moves A second gently lowering ground after full also raising portion an essentially horizontal position prior retraction.