| 摘要 |
PROBLEM TO BE SOLVED: To obtain a motor wherein a clutch is provided between a rotating shaft and a worm shaft in view of designing a compact motor length along the rotating shaft and center axial line of the worm shaft. SOLUTION: A commutator 15 rotating integrally with the rotating shaft 13 is fixed to this rotating shaft 13 of an armature. This commutator 15 allows integrated formation of a driving side rotating part 23 forming a clutch mechanism 21. On the other hand, a worm shaft 26 interlocking with the rotating shaft 13 allows integral formation of a driven side rotating part 24 forming the clutch mechanism 21. This driven side rotating part 24 is engaged with a driving side rotating part 23. The clutch mechanism 21 transfers the rotation to the worm shaft 26 from the rotating shaft 13 depending on the engaging condition between the driving side rotating part 23 and the driven side rotating part 24, thereby rejecting transfer of rotation to the rotating shaft 13 from the worm shaft 26. |
