| 摘要 |
PROBLEM TO BE SOLVED: To improve strength and rigidity of an integrally molded synthetic resin pallet. SOLUTION: A first central beam penetrating bar 6a' and a second central beam penetrating bar are intersected in the central beam. The first central beam penetrating bar 6a' extends through the central beam connecting, as in a single straight bar, at least one of the bars 6a located in the central part of an intermediate beam-central beam upper connecting portion 6, which connects one of a pair of opposite intermediate beams 2 and a central beam 3 and at least a beam located in the middle of the intermediate beam-central beam upper connecting portion , which connects the other one of the pair of opposite intermediate beams 2 and the central beam. The second central beam penetrating bar extends through the central beam connecting, as in a signal straight bar, at least one of the bars located in the central part of an intermediate beam-central beam upper connecting portion, which connects one of another pair of opposite intermediate beams and a central beam and at least a beam located in the middle of the intermediate beam-central beam upper connecting portion, which connects the other one of the other pair of opposite intermediate beams 2 and the central beam. COPYRIGHT: (C)2010,JPO&INPIT
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