| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor-driven tool which can maintain high cooling performance by preventing the disconnection of a coil bundle by holding the coil bundles divided into a plurality of coil ends certainly and holding the shape of a space for ventilation formed between the coil bundles. SOLUTION: The motor-driven tool is made by forming space S for ventilation between the plurality of divided coil bundles 27a and 27b with a commutator motor equipped with a rotor 25 having a stator core 26 and a stator coil 27 wound in a slot 26b of the stator core 26 as a drive source, and with at least one of the coil ends 27A projected axially outward from both axial ends of the stator core 26 of the stator coil 27, divided along the radial direction into at least the two coil bundles 27a, 27b. In the motor-driven tool, the plurality of divided coil bundles 27a, 27b of the coil ends 27A of the stator coil 27 are held with a band 29. COPYRIGHT: (C)2006,JPO&NCIPI
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