| 摘要 |
PROBLEM TO BE SOLVED: To arrange a stage by a simple configuration and at a low cost without using a winch device and to smoothly fold, erect and deform the stage with light force.SOLUTION: For a folding erection storage type stage, proximal ends of a pair of front and back stage plates 4 and 5 are pivoted so as to be freely elevated to respective pillars 2 and 3 which are arranged oppositely at the front and back and one of which is provided with a wheel 3b, and the stage plates 4 and 5 are connected so as to be bent and stretched. At a part below proximal end pivots of the stage plates 4 and 5 in the pillars 2 and 3, a compression coil spring 17 in an unloaded state in the state of folding and erecting the stage plates 4 and 5 is externally fitted, the proximal end of a spring support rod 19 provided, on a proximal end side, with a spring receiver 18 for abutting and supporting one end of the compression coil spring 17 is pivoted freely swingably in an elevation direction of the stage plates 4 and 5, and a spring presser 20 to be in contact with the other end of the compression coil spring 17 in the unloaded state for loosely fitting the distal end side of the spring support rod 19 is fixed to the appropriate part of the stage plates 4 and 5. |
