| 摘要 |
<p>PURPOSE:To move smoothly a moving body without exerting any shock on it by controlling a power source to increase gradually a current fed to a drive transmitting means which drives the moving body to a rated value. CONSTITUTION:The series circuit of a resistance R and an electromagnetic clutch is connected in parallel to an electromagnetic clutch coil L in the circuit constitution of an electromagnetic clutch for transmitting driving force to the moving body; and the base of a transistor TR is connected to the connection point A of the resistance R and capacitor C, the collector is connected to the coil L, and the emitter is connected to the minus side of the power source E, respectively. When a switch S2 is closed under the control of a copying machine, the charging the capacitor C starts and electric power applied to the electromagnetic clutch approximates to the rated value gradually by the TR to couple the electromagnetic clutch with other mechanism, etc., slowly. Consequently, the moving body starts moving smoothly to suppress shocks in the start.</p> |
