Elevator installation
AssigneeThyssenkrupp Elevator AG
InventorsHolger ZERELLES, Bernd ALTENBURGER, Ronald DIETZE, Juri SCHÄFER
Life of this patent
Estimating the term…
Abstract
An elevator installation includes a shaft in which at least two elevator cars are arranged one above the other and are capable of travel upward and downward in a vertical direction separately from one another, wherein each elevator car is assigned a travel drive. The elevator cars are capable of travel with large and small spacings to one another without the risk of collision by coupling at least two elevator cars together by way of a variable-length, releasable coupling device, wherein the spacing between the coupled-together elevator cars can be varied, in a manner dependent on the relative speed between the two elevator cars, with the aid of at least one of the travel drives.
Claims20
-19. (canceled)
An elevator installation, comprising:
- an elevator shaft;
- at least a first elevator car and a second elevator car disposed in said shaft and arranged one above the other, and separately moveable from one another in an upward and downward vertical direction;
- a first travel drive assigned to and operatively engaged with said first elevator car, and configured to provide traveling movement to said first elevator car;
- a second travel drive assigned to and operatively engaged with said second elevator car, and configured to provide traveling movement to said second elevator car;
- a variable-length releasable coupling device configured to couple together said first and second elevator cars, wherein a spacing between the coupled-together first and second elevator cars can be varied, with the aid of at least one of said travel drives, based upon the relative speed between said first and second elevator cars.
The elevator installation of claim 1, wherein the spacing between the coupled-together elevator cars can be varied in the presence of relative speeds between said elevator cars up to a predefined maximum admissible relative speed.
The elevator installation of claim 1, wherein the spacing between the coupled-together elevator cars can be varied, based on the relative speed between the first and second elevator cars, with the aid of the travel drives of all of the coupled elevator cars.
The elevator installation of claim 1, wherein said coupling device comprises at least one motorized coupling drive configured to couple and decouple said first and second elevator cars together.
The elevator installation of claim 1, wherein said first and second elevator cars are respectively connected to said first and second travel drives by supporting means.
The elevator installation of claim 1, wherein said first and second elevator cars are each respectively connected to separate counterweights by supporting means.
The elevator installation of claim 1, wherein said coupling device comprises at least one moveable coupling member and an influencing member in operative communication with said at least one influencing member, said influencing member being configured to influence a movement of said coupling member based on the relative speed between the coupled-together elevator cars.
Dependencies are inferred from the claim text.