Elevator hoist apparatus with an outer rotor motor
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorTakenobu Honda
Life of this patent
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Abstract
An elevator hoist apparatus with an outer rotor motor includes a support structure, a sheave rotatably mounted on the support structure, and an electric motor mounted on the support structure for driving the sheave. The motor includes a stator fixedly mounted on the support structure, a motor frame mounted only to the sheave for rotation therewith, and a rotor mounted to the frame in an electromagnetically inductive relationship with the stator. The support structure comprises a pair of pedestals and an elongated support member supported at its opposite ends by the pedestals for supporting the sheave and the stator.
Claims3
A gearless traction-type elevator hoist apparatus with an outer rotor motor comprising:
- a support structure;
- a sheave rotatably mounted on said support structure;
- and
- an electric motor mounted on said support structure for driving said sheave, said motor comprising a stator fixedly mounted on said support structure, a motor housing including a cylindrical wall surrounding said stator and opposing sidewalls attached to said cylindrical wall, said sheave being mounted to one of said sidewalls for rotation with said housing, said housing comprising a rotor in an electromagnetically inductive relationship with said stator, said sheave providing the sole support for said motor housing.
Dependencies are inferred from the claim text.