Abstract:
Traction sheave elevator without counterweight and method for braking an elevator, in which elevator the elevator car is suspended by means of hoisting ropes consisting of a single rope or several parallel ropes, said elevator having a traction sheave which moves the elevator car by means of the hoisting ropes. In the elevator, when the elevator car is moving upwards in an emergency stop situation the braking of the operating brake of the elevator is at least partially prevented for at least a part of the stopping distance of the elevator.
Abstract:
The invention concerns a travelator in which the conveyor comprises a frame (2), a number of shafts (3) mounted with bearings at their ends on the frame (2) so that the shafts are mutually parallel, at a distance from each other and transverse to the transport direction of the conveyor (1), a number of belt pulleys (4; 41, 42, 43, 44, 45) coupled side by side to the shaft (3), and a number of mutually parallel endless belt loops (5), which form the moving transporting surface of the conveyor (1). Each one of the belt loops is passed over two belt pulleys on two different shafts. Each belt pulley (4; 41, 42, 43, 44, 45) is a mold-cast object comprising a first side (6), in which is formed a first aligning and coupling element (7), and a second side (8) opposite to the first side (6), in which is formed a second aligning and coupling element (9) fitted to match the first aligning and coupling element, so that the first and second aligning and coupling elements of adjacent belt pulleys (4; 41, 42, 43, 44, 45) on the shaft (3) in cooperation align and couple the belt pulleys together in shape-locking manner, forming a belt pulley pack (10).
Abstract:
A travelator, moving ramp or escalator, comprising a power means (1) and a conveyor (2) having a driven end (3) driven by the power means (1) and a non-driven end (4). The conveyor comprises a first drive element (5) and a second drive element (6), which are at a distance from each other and parallel to each other, each being formed as an endless loop. A number of transport platforms (7), such as pallets or stairs, are arranged one after the other and secured to the first (5) and the second (6) drive elements. The first drive element (5) is passed at the driven end (3) over a first driving pulley (8), which is rotated by the power means (1), and at the non-driven end (4) over a first diverting pulley (9). The second drive element (6) is passed at the driven end (3) over a second driving pulley (10), which is rotated by the power means (1) , and over a second diverting pulley (12) at the non-driven end (4) . Placed at the driven end (3) are first synchronizing means (12) for mutual synchronization of the first driving pulley (8) and the second driving pulley (10). The conveyor (2) additionally comprises second synchronizing means (13), which have been arranged at the non-driven end (4) for mutual synchronization of the first diverting pulley (9) and the second diverting pulley (11).
Abstract:
An elevator and a method, said elevator being preferably an elevator without machine room, and wherein the elevator car is supported by a set of hoisting ropes comprising one rope or a number of parallel ropes. The elevator has a traction sheave which moves the elevator car by means of the hoisting ropes. The elevator has rope portions of hoisting ropes going upwards and downwards from the elevator car, and the rope portions going from the traction sheave in the direction of the rope portion above the elevator car are under a first rope tension (T1) and the rope portions going from the traction sheave in the direction of the rope portion below the elevator car are under a second rope tension (T2). In addition, the elevator has a compensating device acting on the hoisting ropes to equalize and/or compensate the rope tension and/or rope elongation and/or to render the ratio of the first and the second rope tensions (T1/T2) substantially constant. The motion of the elevator is prevented and/or stopped by increasing the ratio of the first rope tension (T1) to the second rope tension (T2) .
Abstract:
The invention relates to an arrangement for coupling a pallet of a travelator or equivalent, in which arrangement the pallet (1) moving on wheels (4) forms a part of a transport track. The pallet consists of at least a pallet body (3) and a wearing surface. In the arrangement, the pallet (1) is fastened to a chain (12) or equivalent serving as a drive element by means of a fastening element (20). The fastening element (20) comprises at least a coupling piece (8) to which can be fitted at least one fastening part comprised in the chain (12) or equivalent.
Abstract:
An elevator, preferably an elevator without counterweight, which has an elevator car (1) suspended by means of a set of hoisting ropes comprising one rope or a plurality of parallel ropes. The elevator has a traction sheave (204) that moves the elevator car (1) by means of the hoisting ropes. The elevator contains rope portions of hoisting ropes going upwards and downwards from the elevator car (1), and it has a compensating device (224) acting on the hoisting ropes to equalize and/or compensate rope tension and/or rope elongation. The compensating device (224) acting on the hoisting ropes of the elevator, said compensating device having at least a first range which is a structural operating range of the compensating device and at least a second range which is a preselected compensation range of the compensating device, is provided with at least one switching element (V1, V2) for monitoring whether the compensating device remains within the preselected compensation range.
Abstract:
The invention relates to a method for determining the operation and/or condition of the holding brake (1) of a traction sheave elevator and to a holding brake (1). The holding brake (1) comprises a brake body (2); a brake pad (3); a brake shoe (4) with the brake pad (3) attached to it, said brake shoe being mounted on the brake body so that it can move between a braking position (I) and a released position (II); a spring (6) arranged to apply to the brake shoe a load tending to move it to the braking position (I); and an electromagnetic actuator (7) arranged to keep the brake shoe in the released position when activated. Using a displacement sensor (8), the displacement between the braking position (I) and the releasing position (II) is measured, and the operational state and/or condition of the brake is indicated by a monitoring device (9) on the basis of the measured displacement.
Abstract:
The object of the invention is a people mover, which people mover comprises at least a conveyor track (1) provided with a conveyor section and a return section, which conveyor track comprises a plurality of conveyor elements (2) arranged consecutively, to which conveyor elements (2) at least one step plate (17) is connected, which step plate is locked to the conveyor element (2) with a locking means (25, 27). The people mover comprises means (18, 28) for determining the position of a step plate (17) and/or the position of the locking means (25, 27) of a step plate.
Abstract:
The invention relates to a pallet arrangement for a travelator or equivalent, in which arrangement a pallet (1) moving on wheels (4) forms a part of the moving track, said pallet (1) consisting of at least a pallet body (3) and a wearing surface. The body (3) of the pallet consists of at least two profile sections (6 and 7) joined together.
Abstract:
The invention relates to a travelator system, which comprises a main conveyor (1), which comprises a number of shafts (2). Connected to each shaft are a number of belt pulleys (3) placed side by side. A number of mutually parallel endless belt loops (4), which form the moving conveying surface of the main conveyor (1). Each belt loop (1) is passed over two belt pulleys on two different shafts in such manner that, of each two closely adjacent belt loops on the same common shaft that are passed over adjacent belt pulleys, one belt loop is passed over a belt pulley on a previous shaft relative to the common shaft while the other belt loop is passed over a belt pulley on a following shaft relative to the common shaft. The travelator comprises a branch conveyor (5), which in a connecting section (6) branches off with respect to the main conveyor (1) to allow passengers to enter from the branch conveyor (5) onto the main conveyor (1) and/or to exit from the main conveyor (1) onto the branch conveyor (5). Like the main conveyor (1), the branch conveyor (5) is also implemented using shafts (2) and belt loops (4). In the connecting section (6) the branch conveyor (5) and the main conveyor (1) have at least one common shaft (2).