| 摘要 |
PROBLEM TO BE SOLVED: To eliminate variations in product precision by simplifying a structure, and to reduce weight by securing predetermined rigidity. SOLUTION: A swing arm 2 for mounting a molded article as a hollow structure 1 comprises: a shell body 3 having a closed cross-section structure with no joint or mating surface; a reinforcing rib 4 which is elongated in the width direction and provided in a hollow part 3a in the shell body 3 in such a manner as to continue into the shell body 3; and a charging passage 7 for charging a negative-pressure supply tube 6 (operating-energy supply system) to an operation part such as a molded-article suction-holding part 5 which is connected to the shell body 3. COPYRIGHT: (C)2007,JPO&INPIT
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