Patent ID: 7908695
Filing Date: 2011-03-22
Classification: A61G,Y10S

Abstract:
1. A manually operated ramp assembly comprising: a ramp platform moveable between a stowed position and a deployed position; a drive assembly coupled to the ramp platform and operable to move the ramp platform; a shaft defining a shaft axis, the shaft coupled to the drive assembly to cause movement of the ramp platform between the stowed position and the deployed position in response to rotation of the shaft about the shaft axis; a handle coupled to the shaft for manual rotation of the shaft about the shaft axis; and a biasing member biasing the ramp platform toward the stowed position, wherein the drive assembly includes a drive shaft coupled to the ramp platform and extending substantially perpendicularly to the shaft axis, and wherein the drive shaft is coupled for rotation with the shaft by a set of bevel gears.