| 摘要 |
PROBLEM TO BE SOLVED: To heighten the strength and the rigidity for corner beams and middle beams. SOLUTION: For a synthetic resin pallet P for use with one side only comprising cup-shaped corner beams 1 each formed by deforming each of four corners of a synthetic resin plate material downward, cup-shaped middle beams 2 each formed by deforming each of parts positioned at the middle between the corner beams downward and a cup-shaped center beam 3 formed by deforming a central part of the synthetic resin plate material downward, protuberant vertical ribs 1c and 2c are formed respectively at each of side walls positioned at the outside of each of the corner beams and each of the middle beams by bulging the side walls outward.
|
