| 摘要 |
<p>PURPOSE:To contrive the miniaturization, the prevention against the danger of breaking and damage, the reduction of number of kinds of supports, and the simplification of the operation, by connecting the arm and the rotatable bench with the pantograph mechanism, and by supporring the cable on the arm through the chain. CONSTITUTION:The bender 10 is constituted of a pair of arms 11, 11', connected by the pins 12 crossing each other, the links 14, 14', connected to the tip of arms 11, 11', by the pins 13, 13', the pin 15 connecting tips of the links 14, 14', and the bench 16 rotatably supported by the pin 15. The spring 17 is placed between the pins 12, 15, and the pantograph mechanism constituted of the arm and the link is folded. Besides, the hydraulic jack 18 for lifting a pin 13' is rotatably attached to the arm 11. The pin 19 is fixed to the tip of the arm; the chain is passed through the metallic pipes 22, 22', fixed to the stationary metallic plates 21, 21', at both ends of the flexible plate 20; this chain is hooked on above pin 19 as the belt type means, etc., so as to support the cable.</p> |
