Patent ID: 7066528
Filing Date: 2006-06-27
Classification: B60P

Abstract:
1. A recreational vehicle comprising: a main housing defining an interior living space having a floor located at a first level wherein the main housing defines a first wall having an opening formed therein; an expandable room having a floor and an outer wall positioned within the opening in the first wall of the main housing, wherein the expandable room is adapted to be movable between a retracted position wherein the floor of the expandable room is positioned at a second level above the first level of the floor of the main housing and the outer wall is positioned substantially adjacent the first wall of the main housing and a deployed position wherein the outer wall is extended away from the first wall of the main housing and the floor of the expandable room is positioned at a third level below the second level so as to be more planar with the first level; and a piston actuated movement mechanism mounted to the main housing, the piston actuated movement mechanism comprising at least one mounted piston and two pivot points secured to the main housing with a movement member extending between the two pivot points, wherein each of the at least one piston extends a respective arm outward away from the main housing, wherein the respective arm of each of the at least one piston includes a pivot point and wherein the movement member includes a roller that is attached to respective arm of each of the at least one piston such that outward movement of each piston arm results in vertical movement of the roller so as to exert a force having an upward component on the expandable room to thereby move the floor of the expandable room from the third level to the second level and wherein inward movement of each piston arm results in a vertical downward movement of the roller so as to permit the floor of the expandable room to move from the second level to the third level.