Elevator counterweight
AssigneeOtis Elevator Company
InventorsHugues Leger, Franck J. Det
Life of this patent
Estimating the term…
Abstract
An elevator counterweight (2) includes a first part (4). The first part (4) is configured to be connected, in use, to a suspension member (8) of an elevator system (1). The first part (4) is arranged to receive an additional mass (6) when the first part (4) is connected to the suspension member (8), such that a mass of the elevator counterweight (2) can be varied. A controller (14) may be arranged to control a mass variation system (12) to vary the mass of the elevator counterweight (2) according to a schedule. The controller (14) may determine the schedule in a learning process.
Claims14
An elevator system, comprising:
- an elevator car;
- an elevator counterweight including a first part configured to be connected, in use, to a suspension member of an elevator system, wherein the first part is arranged to receive an additional mass when the first part is connected to the suspension member, such that a mass of the elevator counterweight can be varied;
- a mass variation system, wherein the mass variation system is arranged to add additional mass to the first part and/or remove additional mass from the first part, so that a mass of the elevator counterweight can be varied;
- a controller, wherein the controller is arranged to control the mass variation system to add or remove the additional mass from the first part of the elevator counterweight;
- and
- a dynamic display, wherein the dynamic display is arranged to display a current duty load, wherein the current duty load varies in correspondence with variation in the mass of the elevator counterweight.
An elevator system comprising:
- an elevator car;
- an elevator counterweight including a first part configured to be connected, in use, to a suspension member of an elevator system, wherein the first part is arranged to receive an additional mass when the first part is connected to the suspension member, such that a mass of the elevator counterweight can be varied;
- a mass variation system, wherein the mass variation system is arranged to add additional mass to the first part and/or remove additional mass from the first part, so that a mass of the elevator counterweight can be varied;
- a controller, wherein the controller is arranged to control the mass variation system to add or remove the additional mass from the first part of the elevator counterweight;
- and
- at least one operation-mode display, wherein the operation-mode display is arranged to display an indication of an elevator mode of operation, wherein the mode of operation corresponds to a variation in the mass of the elevator counterweight.
Dependencies are inferred from the claim text.