公开(公告)号：US20150014007A1

公开(公告)日：2015-01-15

申请号：US14369258

申请日：2012-12-26

Applicant: MAKITA CORPORATION

Inventor： Tomohiro Ukai ,  Tooru Itakura ,  Akinori Ito

IPC: B25F5/00 ,  B25F5/02

CPC classification number: B25F5/001 ,  B24B23/028 ,  B24B47/12 ,  B25B21/00 ,  B25B23/0064 ,  B25F5/008 ,  B25F5/02

Abstract: A power tool includes an outer rotor electric motor, a spindle and a gear train, and a tool accessory can be attached the spindle. The gear train transmits the rotational output of the electric motor to the spindle, and the speed reduction ratio of the gear train may be less than the speed reduction ratio of the gear train would need to be if the motor were instead an inner rotor electric motor.

Abstract translation: 电动工具包括外转子电动机，主轴和齿轮系，并且工具附件可以安装在主轴上。 齿轮系将电动机的旋转输出传递到主轴，并且齿轮系的减速比可以小于如果电动机代替内转子电动机所需的齿轮系的减速比 。