| 摘要 |
<p>PURPOSE:To simplify extermely the constitution by placing a pair of brake members on the periphery of an idler, and constituting a titled device so that the idler rolls and moves on the brake, and thereafter, the other reel turntable is rotated, when a motor is rotated backward and the idler is inverted. CONSTITUTION:A pair of torsion springs 18A, 18B are stretched between levers 17A, 17B and a chassis projecting part 19, by which such a brake force (contact force) which is in contact with a rubber roller 7 is applied to the levers 17A, 17B. When a motor 1 rotates clockwise, as for the rubber tire 7, the opposite surface of a contact surface to a pulley 4 is held by the brake force of the levers 17A, 17B, and a slide scarcely occurs as for this part, therefore, said tire rolls and rotates on the lever centering around a motor shaft 3, moves clockwise together with an arm 8, and at a position where it has abutted on a right reel base 14, its movement is stopped. When a counterclockwise rotation is executed with respect to this rubber tire 7, the driving force from the motor 1 can be transferred to the right reel turntable 14.</p> |
