| 摘要 |
PROBLEM TO BE SOLVED: To easily provide a flexural arm capable of simply setting a desired flexural state at low cost. SOLUTION: This flexural arm is constituted of a hollow cylindrical first arm 1, a core shaft 2 to be inserted through the inside of the first arm 1 free to advance and retreat and a second arm 3 on an end part of which a pair of bearing pieces 4, 4 is formed in a forked state and an outer periphery of which is formed in a spherical surface shape or in a circular arc surface shape with its center positioned between fork ends of the bearing pieces , a tip end part 8 of the core shaft is projected from a tip end surface of the first arm, the second arm is connected to the tip end part free to rotate by inserting a support shaft 10 through into the tip end part and an outer peripheral surface of the bearing pieces is made pressure contact with the tip end surface of the first arm and the second arm is fixed on the first arm at a desired bending angle by tracking the core shaft at the rear of the first arm. COPYRIGHT: (C)2007,JPO&INPIT
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