发明申请
US20110297486A1 FORKLIFT
审中-公开
- 专利标题: FORKLIFT
-
申请号: US13201468申请日: 2010-02-17
-
公开(公告)号: US20110297486A1公开(公告)日: 2011-12-08
- 发明人: Satoru Kaneko , Takashi Ikimi , Shiho Izumi , Hidekazu Moriki , Nobuo Masano
- 申请人: Satoru Kaneko , Takashi Ikimi , Shiho Izumi , Hidekazu Moriki , Nobuo Masano
- 申请人地址: JP Bunkyo-ku, Tokyo
- 专利权人: HITACHI CONSTRUCTION MACHINERY CO., LTD.
- 当前专利权人: HITACHI CONSTRUCTION MACHINERY CO., LTD.
- 当前专利权人地址: JP Bunkyo-ku, Tokyo
- 优先权: JP2009-034076 20090217
- 国际申请: PCT/JP2010/052378 WO 20100217
- 主分类号: B66F9/24
- IPC分类号: B66F9/24 ; H02P5/74
摘要:
[Object]To enable stable cargo handling operation and high-efficiency recovery of regenerative electric power by means of simple configuration.[Solution]In a forklift which includes linear actuators that convert rotational motion into linear motion, the linear actuators being provided in a plurality of fork parts of a cargo handling drive device, the forklift includes induction motors that drive each of the plurality of actuators provided in the plurality of fork parts, an inverter that drives the induction motors in the same manner, and a controller that controls the inverter, and the controller computes a slip frequency by using the lowest detection value among detection values from detectors that detect each of rotation speeds of the plurality of induction motors.
信息查询
IPC分类: