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US 6,968,925 B1Granted
Elevator apparatus
AssigneeTeijin Seiki Co., Ltd.
InventorsHiroyuki Miyoshi, Takashi Kuga
Life of this patent
Estimating the term…
Abstract
An elevator apparatus has an actuating device including a sheave around which a rope engaged with an ascending and descending cage is wound and a driving section for rotating the sheave. The sheave is adapted to rotate to move the rope with its rotation. The actuating device is installed in a machine room provided on a top floor of a building in which the ascending and descending cage is disposed. The machine room faces with an elevator passage for the cage.
Claims22
An elevator apparatus comprising:
- a cage;
- an elevator passage in which said cage is moved ascendingly and descendingly;
- a machine room adjacent a top of said elevator passage, wherein the machine room is located in a top floor of a building having a ceiling, the ceiling lying substantially in the same plane as an upper limit of said elevator passage;
- an actuating device including a sheave around which a rope engaged with the cage is wound and a motor assembly for rotating said sheave, wherein said motor assembly is mounted in said machine room so that said sheave is projected into said elevator passage;
- and
- a rotation surface of said sheave is generally perpendicular to an axis of rotation of said sheave and opposed to a side of said cage when said cage is positioned at said top of said elevator passage.
3 more elements
Dependencies are inferred from the claim text.