| 摘要 |
PROBLEM TO BE SOLVED: To provide a pallet capable of improving durability of junctions without complicating the structure of the pallet and a multistory parking device using such a pallet.SOLUTION: In a pallet 7, junctions W1 to W5 between a main rail 31 and sub-frame 41 and between the main rail 31 and a cross member 42 are provided in a matching part of mating surfaces S1 to S5 and a neutral axis X. When a vehicle is mounted on the pallet 7, deflection occurs in the pallet 7 so that the back face side of the pallet 7 becomes convex, a shearing force in a compression direction acts on the surface side of the pallet 7, and a shearing force in a tensile direction acts on the back side of the pallet 7. However, affection of the shearing force is minimized on the neutral axis X. Therefore, the action of the shearing force applied to the junctions W1 to W5 when the pallet 7 is deflected can be suppressed by positioning the neutral axis X within a range of the thickness of the main rail 31 and aligning the positions of the junctions W1 to W5 on the neutral axis X, thus improving durability of the junctions W1 to W5 without complicating the structure of the pallet 7. |
