Patent ID: 9048698
Filing Date: 2015-06-02
Classification: B66D,H02K

Abstract:
1. A hoist comprising: a motor for lifting and lowering a load, the motor being driven by an inverter controller and including a first forced cooling unit; a mechanism unit including a reduction gear mechanism and a load sheave for winching up and down a chain with power from the reduction gear mechanism; a casing for accommodating the motor and the mechanism unit; and a regenerative resistance unit to which regenerative electric power generated in the motor is supplied, wherein the motor, the mechanism unit, the inverter controller and the regenerative resistance unit are arranged in the casing in a distributed manner so that weights thereof balance out one another in relation to a center of loading that acts on the hoist at the time of winching up and down, wherein the inverter controller and the regenerative resistance unit are arranged so as to be separated from each other with the mechanism unit interposed therebetween, and wherein the regenerative resistance unit is fixed to the casing to be in contact with the casing.