| 摘要 |
<p>PROBLEM TO BE SOLVED: To miniaturize and lighten a cylinder mounting part and to simlify assembly of a cylindrical body. SOLUTION: Bracket insertion holes 26, 26 are provided on an upper plate 12c and a lower plate 12d of an arm body 12 constituting an arm, a bracket 27 for cylinder mounting is inserted into the inside of the arm body from here, and it is fastened in a center impelling state. In the meantime, a pin introduction hole 30 is provided on an arm body side plate 12b, a cylinder mounting pin 32 is inserted into pin insertion holes 28, 28 of a bracket 27 and a pin hole 20b of a rod head end part 20a through the pin insertion hole 30, and the rod head end part 20a is mounted on the arm body 12.</p> |
