Abstract:
An elevator drive machine includes multiple electric motors and a traction sheave. The traction sheave is placed between the motors. With this arrangement, a higher torque is generated by the drive machine as compared to conventional solutions. Furthermore, an elevator arrangement in which such a drive is utilized exhibits efficient space utilization.
Abstract:
A sliding safety gear designed to brake by gripping an elevator or counterweight guide rail includes a flexible frame surrounding the guide rail in the directions of the guiding surfaces of the guide rail. The frame is provided with a braking surface that meets a first guide surface of the guide rail when the sliding safety gear is braking. Attached to the frame is a force element that meets a second guide surface when the sliding safety gear is braking. The cross-section of the frame of the safety gear is substantially in the shape of the letter C. At least one of the ends of the jams of the C-shape is inside the C-shape.
Abstract:
The elevator machinery (26) comprises a motor (6) and its traction sheave (18). The rotor (17) is disc-shaped and air gap (ag) between it and the stator (14) can turn a plane which is substantially perpendicular to the shaft (13). The stator (14) forms a ringlike sector (28) and is placed in an outer part and the traction sheave (18) is fixed to the rotor, between the stator (14) and the shaft (13). The diameter of the traction sheave is smaller than that of the rotor. The structure of the motor allows the use of traction sheaves (18) of different diameters (2*Rv) with rotors (17) of the same diameter. The motor is very flat. In other words, its length in the axial direction is small.
Abstract:
Traction sheave elevator in which the drive machinery together with the traction sheave is placed in an elevator shaft provided with guide rails for the elevator care and the counterweight. The hoisting ropes go upward from the traction sheave. The elevator comprises two diverting pulleys mounted on an upper part of one of the guide rails, the first one of the diverting pulleys carrying a hoisting rope portion going from the traction sheave to the elevator car while the second one carries a hoisting rope portion going from the traction sheave to the counterweight.
Abstract:
An elevator motor (2) employing permanent magnets (30) attached in a circle on the surface (36) of the rotor disc (12). The rotor disc (12) forms part of both the magnetic circuit and the supporting structure of the rotor (13). The permanent magnets (30) are placed in a separate cavity formed in the stator disc and having one side open, the cavity also housing the stator windings (17). The outer cavity wall directed towards the rotor disc (12) is provided with a sealing member to close the cavity.
Abstract:
The instrument panel (1) of an elevator is placed in the same opening (2) in the wall of the elevator shaft (17) as the landing door (3) of the elevator. The instrument panel (1) contains elevator control equipment and the electric drive controlling the hoisting motor of the elevator. The instrument panel (1) of the elevator is in connection with the jamb structure (4) of the landing door (3).
Abstract:
The elevator machinery (26) comprises a motor (6) and its traction sheave (18). The rotor (17) is disc-shaped and air gap (ag) between it and the stator (14) can turn a plane which is substantially perpendicular to the shaft (13). The stator (14) forms a ringlike sector (28) and is placed in an outer part and the traction sheave (18) is fixed to the rotor, between the stator (14) and the shaft (13). The diameter of the traction sheave is smaller than that of the rotor. The structure of the motor allows the use of traction sheaves (18) of different diameters (2*Rv) with rotors (17) of the same diameter. The motor is very flat. In i.e. other words its length the axial direction is small.
Abstract:
The traction sheave elevator comprises an elevator car (1) moving along elevator guide rails (10), a counterweight (2) moving along counterweight guide rails (11), a set of hoisting ropes (3) on which the elevator car and the counterweight are suspended, and a drive machine unit (6) comprising a traction sheave (7) driven by the drive machine and engaging the hoisting ropes (3). The drive machine unit (6) of the elevator is placed in the top part of the elevator shaft (15) in the space between the shaft space needed by the elevator car on its path and/or its overhead extension and a wall of the elevator shaft (15).
Abstract:
The invention relates to an elevator having a hoistway, an elevator car movable in the hoistway and provided with a car brake, and a first coupling means movably mounted on the car, and a second coupling means mounted separate from the car at proximity of an end of the hoistway, the first and second coupling means being counterparts for each other and provided for being coupled in force-transmitting manner to each other, the car brake being triggerable by movement of the first coupling means. One of the first and second coupling means has coupling points at different vertical levels, and in the other of said first and second coupling means can couple to said one of the first and second coupling means at each of said coupling points. The invention also relates to a method for forming a safety space in the elevator.
Abstract:
The invention relates to a method and arrangement for installing an elevator, which comprises an elevator car arranged to run in an elevator shaft along the guide rails, a balancing weight connected to the elevator car with suspension ropes and with a traction member, the elevator comprising further a hoisting machinery with a driving wheel in the lower part of the elevator shaft below the elevator car, the installing comprising one or more jumps to make the elevator serve higher floors. During the jump phase extensions needed for the suspension ropes are taken from first supply reels and extensions needed for the traction member are taken from second supply reels.