| 摘要 |
PURPOSE:To make the simple accurate execution of the rotary control of a type wheel possible, by a method wherein in the printer which can freely mount and dismount a type wheel, the measure by which the sum of the inertia moments of the type wheel and a rotary mechanism is made constant, is provided. CONSTITUTION:The inertia moment compensation spindles 27, 28 having the fitting pins 25, 26 along the guide grooves 23, 24 are, in a freely moving manner, fitted to the fitting plate 21 fixed to a rotary shaft 19, energized onto the rotary shaft 19 side with a spring 29 and its tensile force is settled at a force enough to cansel the outward movement by the centrifugal force of itself. On the other hand, a pair of inertia moment regulation claws 30 are formed to the type wheel 17 according to its class. When mounted to the rotary shaft 19, the claws 30 move the compensation spindles 27, 28 outwards by DELTAD and the inertia moment of all rotary system is settled at a fixed value. Further, the claws 30 are not provided to the type wheel having the largest inertia moment. |
