Space saving arrangement of a machine-room-less elevator device
AssigneeMitsubishi Electric Corporation
InventorsKeita Shimabayashi, Yoshinori Tani
Life of this patent
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Abstract
Provided is an elevator device, in which a hoisting machine includes a main shaft, a brake drum rotatable about an axis of the main shaft, and a brake unit arranged at a position on a radially outer side of the brake drum. The brake unit includes a movable member and presses the movable member in an obliquely upward direction against an outer peripheral surface of the brake drum to apply a braking force to the brake drum. The car guide rail is retained by an upper rail bracket at a position higher than a position of the machine base. The brake unit is arranged at a position higher than the machine base and lower than the upper rail bracket.
Claims6
An elevator device, comprising:
- a car vertically movable in a hoistway;
- a car guide rail, which is provided in the hoistway, and is configured to guide the car;
- a counterweight vertically movable in the hoistway;
- a counterweight guide rail, which is provided in the hoistway, and is configured to guide the counterweight;
- a hoisting machine, which is provided in an upper part of the hoistway, and is configured to generate a driving force for moving the car and the counterweight;
- and
- a machine base configured to support the hoisting machine,
- wherein the hoisting machine includes a main shaft, a brake drum rotatable about an axis of the main shaft, and a brake unit arranged at a position on a radially outer side of the brake drum,
- wherein the brake unit includes a movable structure and presses the movable structure in an obliquely upward direction against an outer peripheral surface of the brake drum to apply a braking force to the brake drum, and
- wherein the car guide rail is retained by an upper rail bracket at a position higher than a position of the machine base, and
- wherein the brake unit is arranged at a position higher than the machine base and lower than the upper rail bracket,
- wherein the upper rail bracket overlaps a region of the movable structure of the brake unit and an entirety of the upper rail bracket is outside a region of the brake drum as viewed from above.
Dependencies are inferred from the claim text.