发明名称 Electric power tool
摘要 An electric power tool (1) includes a motor (4) with a rotor (5) having a permanent magnet; a control unit (46) that sets a control amount of the motor (4) in accordance with operation of an operation portion (21a) and that drive-controls the motor (4) based on the control amount; and a number-of-rotations detection unit (50) that detects the number of rotations of the motor (4). During driving of the motor (4), when the number of rotations detected by the number-of-rotations detection unit (50) has reached an upper limit number of rotations set in advance, the control unit (46) shifts drive control of the motor (4) to rotation control, in which the control amount is made to be increased or decreased so that the number of rotations of the motor (4) becomes a predetermined target number of rotations.
申请公布号 EP2818281(A2) 申请公布日期 2014.12.31
申请号 EP20140172236 申请日期 2014.06.12
申请人 MAKITA CORPORATION 发明人 ISHIKAWA, GOSHI;KUSAKAWA, TAKUYA
分类号 B25F5/00 主分类号 B25F5/00
代理机构 代理人
主权项
地址
您可能感兴趣的专利