| 摘要 |
A hoist capable of high frequency operation by efficiently releasing heat of an inverter, which is incorporated in a hoist body, to ambient air by us ing a simple structure. The hoist has a load lifting and lowering electric m otor and a reduction gear mechanism, and the motor is driven by the inverter (12) incorporated in the hoist body. The hoist further has heat release mea ns for releasing heat emitted from the inverter (12) to a reduction gear mec hanism casing (15). The heat release mechanism is installation means for ins talling the inverter (12) on the reduction gear mechanism casing (15) with a t least a part of the inverter (12) made to be in direct intimate surface co ntact with the casing (15). |
