| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor actuator capable of being driven in one direction, even for a target to be driven applied by a large load and smoothly returning, when the target to be driven returns by own returning power. SOLUTION: A torque from a motor 10 is transmitted to a rotor 34 comprising an output part 38 via a transmission mechanism, which drives the rotor 34 against an external load connected with the output part 38. The transmission mechanism comprises a communication member 32, having a second engaging part 64 which is engaged with a first engaging part 62 provided on the rotor 34 and rotates the rotor 34 against the external load, the output part 38 is formed at a position separated from the rotational center of the rotor 34 in the radial direction. The first half section of one turn of the rotor 34 is an engaging section, in which the second engaging part 64 is engaged with the first engaging part 62 and the rotor 34 is driven by the communication member 32, and the latter half section of one turn of the rotor 34 is a section, in which the rotor 34 is rotated by the external load. COPYRIGHT: (C)2004,JPO
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