| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor actuator that is compact in size by suppressing the application of eccentric loads from a motor to installation bosses formed at opening ends of a motor case and a gear case. SOLUTION: The installation bosses 9 having installation holes 8 are arranged at the opening end 2a of the gear case 2 and the opening end 1a of the motor case 1, and an actuator case A is formed of the gear case 2 and the motor case 1. A gear part G is formed of: a motor gear G1 connected to an output shaft Ma of the motor M; an intermediate gear G2 in which a small-diameter gear G22 and a large-diameter gear G21 are formed over two stages in parallel with each other along the longitudinal direction X-X of a supporting shaft 3, and the small-diameter gear G22 is arranged at the opening end 2a side of the gear case 2; and an output gear 3 that outputs rotation toward the outside. The gear part is arranged in a gear accommodation recess 2b of the gear case 2. The motor M is arranged in a motor accommodation recess 1b of the motor case 1, protrudes into the gear case 2 from the opening end 1a of the motor case 1, and is closely arranged at the side face G21a of the opening end side of the large-diameter gear G21. COPYRIGHT: (C)2007,JPO&INPIT
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