| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate switching of a containing carriage period where a floor plate is unfolded and a non-carriage period where the floor plate is folded and to improve safety and the efficiency of a moving work for a truck during folding. SOLUTION: A bottom plate is formed such that a bending floor folded in a state that a protrusion is formed in an up state is located in a coupling state between a fixed floor plate 2 with a caster 7 and a moving plate 3. A reinforcing frame 8 extending along the under surface of a floor plate is fixed together with the fixed floor plate 2. A front fence 16 is erected on the fixed floor plate 2 and a rear fence 20 on the moving floor plate 3. The under surface of the tip part (the rear fence 20 side) of the reinforcing frame 8 is notched to form a slope 43, and a wheel 46 is protruded from the tip thereof to form a truck for carriage. During carriage, the rear fence 20 is used in a position shown by a chain line. During non-use, the rear fence 20 is moved in a manner to make access to the front fence 16 and the floor plate (a bending floor plate) is folded. During folding, even when the truck 20 for carriage is inclined (a floor 41a), a wheel 46 makes contact with a floor and the floor plate (the reinforcing frame 8) is prevented from making contact with a floor 41a.</p> |
