Abstract:
The invention concerns an adjustable machine mounting base (5) in an elevator provided with a hoisting machine (9) and hoisting ropes (18), in which elevator the hoisting ropes (18) move an elevator car (40) along guide rails (43). The machine mounting base (5) consists of at least a modular frame structure (6) and a machine section (7) that can be secured in more than one mounting position in relation to the frame structure (6).
Abstract:
An apparatus in an elevator for detecting and stopping an uncontrolled movement of the car when a machine brake intended to keep the elevator car immovable is on. The apparatus comprises a motion detector (1) for detecting movement of the car (2) and the length of the movement when the machine brake is on (10), a stopping device (3) for stopping an uncontrolled movement of the car, and limit and control means (4) for defining an allowed car movement and controlling the operation of the stopping device according to information obtained from the motion detector.
Abstract:
The present invention relates to a method and a system for testing the condition of the brakes of an elevator. In the method, a test weight is set to apply to the drive machine of the elevator, by means of which weight a first torque required for driving the elevator car in the upward direction is measured. At least one of the brakes of the elevator is closed. Next, the empty elevator car is driven in the upward direction with the force of the aforesaid first torque and a check is carried out to detect movement of the elevator car. If a movement of the elevator car is detected, then the aforesaid at least one brake of the elevator is regarded as defective. The method of the present invention makes it possible to check the operativeness of the brakes of the elevator without separate maintenance visits.
Abstract:
The object of the invention is an elevator hoistway, at least one wall section of which is in connection with incoming solar radiation (5). The aforementioned wall section is made to be electromagnetic radiation absorbent, for collecting incoming solar radiation (5) in the wall structure (1).