Patent ID: 7810183

Claim:
A bed equipped with side rails comprising: a bed frame; a back bottom; a leg bottom; a first link mechanism, having a lower end rotatably connected to the bed frame, for tilting said back bottom with respect to said bed frame; a back side-rail fixed to said back bottom; a leg side-rail that is provided to said leg bottom and being spaced from said back side-rail while being allowed to move in the longitudinal direction of the bed; and a second link mechanism, having a lower end rotatably connected to the bed frame, that is connected to said first link mechanism and that moves said leg side-rail in conjunction with the tilting motion of said back bottom; wherein said leg side-rail is moved toward the leg end of said bed by said second link mechanism while said back bottom is raised by said first link mechanism to reduce the gap between said back side-rail and said leg side-rail.