基本信息:
- 专利标题： 電動工具
- 专利标题（英）：Electric tool
- 申请号：JP2016561467 申请日：2015-10-30
- 公开(公告)号：JPWO2016084553A1 公开(公告)日：2017-09-07
- 发明人： 祐貴 武田 , 祐貴 武田
- 申请人： 日立工機株式会社
- 申请人地址： 東京都港区港南二丁目15番1号
- 专利权人： 日立工機株式会社
- 当前专利权人： 日立工機株式会社
- 当前专利权人地址： 東京都港区港南二丁目15番1号
- 代理人： 村井 隆; 村井 弘実
- 优先权： JP2014240986 2014-11-28
- 主分类号： B25F5/00
- IPC分类号： B25F5/00 ; B24B23/02 ; H02P3/12 ; H02P3/26
To provide a mutable good operability power tools the braking force according to the working state. Control unit 50, when the operation switch 5 is turned off, detects the rotational speed R1 of the electric motor 6. Control unit 50 waits a predetermined time, detects the rotation speed R2 of the electric motor 6, calculates the difference in rotational speed R1, R2 (R = R1-R2). Rotational speed difference R, in order to correspond to the rotational speed of the time rate of change during deceleration of the electric motor 6, as the moment of inertia of the mounting rotation member is large small, the control unit 50 based on the rotational speed difference R wherein it is possible to determine the moment of inertia of the rotating member. Control unit 50, the braking force is set in accordance with the moment of inertia, the braking.
公开/授权文献:
- JP6414603B2 電動工具 公开/授权日：2018-10-31