Abstract: Provided is an elevator device, in which a hoisting machine includes a main shaft, a brake drum rotatable about an axis of the main shaft, and a brake unit arranged at a position on a radially outer side of the brake drum. The brake unit includes a movable member and presses the movable member in an obliquely upward direction against an outer peripheral surface of the brake drum to apply a braking force to the brake drum. The car guide rail is retained by an upper rail bracket at a position higher than a position of the machine base. The brake unit is arranged at a position higher than the machine base and lower than the upper rail bracket.

Abstract: Disclosed is a method of expanding an elevator system in a hoistway, involving: connecting an elevator car at a first level to an overhead winch that is connected to a hoist-beam at a second level, the elevator car being supported by a rail system, the rail system defining, at a first level, first and second rails with first and second rail terminal ends; connecting a machine system mounted to the first rail terminal end to a machine hoist mounted at the second level; removing a dead-end hitch from the second rail terminal end; hoisting the machine system to the second level; extending the rail system to the second level to define third and fourth rail terminal ends; hoisting the elevator car and the dead-end hitch to the second level; and installing the machine system and the dead-end hitch at the second level, to the third and fourth rail terminal ends.

Abstract: A method for roping an elevator. At the bottom part of the elevator shaft the hoisting ropes are routed under the pulleys of the elevator car. Then the elevator car and the counterweight are hoisted to the upper part of the shaft where the first ends of the hoisting ropes are routed through the traction sheave and the counterweight pulleys. After that the first rope ends are fixed to the counterweight side rope terminals and the counterweight is lowered to the bottom part of the shaft. During the descent the hoisting ropes are unwound from the reels through the whole roping system with the help of the mass of the counterweight. Finally, the second ends of the hoisting ropes are fixed to the car side rope terminal and tightened to the correct tension.

Abstract: The present invention provides a compensating wire bundle storage device, a jump lift and a usage method thereof. The compensating wire bundle storage device comprises one or more wire drum which are configured such that a compensating wire bundle is wound thereon and are fixed relative to the car of the jump lift; and a compensating wire bundle clamping device configured to releasably clamp the compensating wire bundle, wherein the compensating wire bundle clamping device is fixed under the car. The compensating wire bundle storage device and the lift of the present invention have the advantages of a simple structure, being easy to manufacture, being convenient to install, etc., and can provide a greater lifting height for lifts, thereby improving the operation efficiency.

Abstract: A rope lifting tool for belt-shaped ropes comprises a first guide for guiding the rope lifting tool along a first guide rail; a second guide for guiding the rope lifting tool along a second guide rail; an upright plate, and an inclined plate at an acute angle relative to the upright plate. The upright plate and the inclined plate have a wedge shaped space between them. A plurality of wedge members are placed adjacent each other inside the wedge-shaped space. A rope gap for receiving an end of a belt-shaped rope is formed between each wedge member and the upright plate, which rope gap is narrowable by wedging of the wedge member in the wedge shaped space. A rope lifting arrangement includes the rope lifting tool.

Abstract: An elevator system includes an elevator shaft, an elevator car arranged in the elevator shaft for movement, a drive unit for moving the elevator car, a machine platform that can be fastened in the elevator shaft and can be lifted along the elevator shaft, wherein the drive unit is fastened to the machine platform, and at least one lifting device for lifting the machine platform. The at least one lifting device includes a supporting element, a strand jack for moving along the supporting element, and an anchor for fastening the supporting element in the elevator shaft, wherein the supporting element is fastened in the elevator shaft by the anchor and the strand jack is arranged to move along the supporting element.

Abstract: A counterweightless elevator includes a hoistway, a car vertically movable in the hoistway, one or more suspension ropes, a rotatable drive member engaging said suspension rope(s), each of the suspension rope(s) having a first rope section on the first side of the drive member and a second rope section on the second side of the drive member, and each rope section being connected to the car, said first rope section suspending the car, and a tightening device arranged to tighten the second rope section. Each of said rope(s) is belt-like and includes a load bearing member or a plurality of load bearing members, which load bearing member(s) is/are made of composite material including reinforcing fibers embedded in a polymer matrix, which reinforcing fibers are carbon fibers.

Abstract: The object is achieved, according to the invention, in that the traction device (208) is equipped as a pulley block (209) with two or more, in particular with four, deflecting pulleys (206, 212, 214, 219), the axes of which are arranged one below the other on an approximately vertically running plane, at least one deflecting pulley (206) being mounted in the elevator well or on the well carcass (102) above the elevator installation (103), a further deflecting pulley (219) being mounted below the elevator installation (103) in the elevator well or on the well carcass (102), and one or more, in particular two, deflecting pulleys (212, 214) being mounted on a side element (202) of the load suspension means, in particular the travel platform (200).

Abstract: A mechanical device for reducing the energy absorbed by an electric motor of a handling plant. The device includes a first rotating member moved by the motor of the handling plant. The device also includes a second rotating member connected to the first member through a first transmission apparatus. A third rotating member is connected to the second rotating member through a second transmission apparatus, which develops a transmission ratio equal to unity. The device further includes a fourth rotating member operatively connected to the rotor of the electric motor. The fourth rotating member and the third rotating member are connected through a third transmission apparatus, which develops a transmission ratio equal to unity. The device includes a sixth rotating member connected to a fifth rotating member through a fifth transmission apparatus. The sixth rotating member and the first rotating member are connected through a sixth transmission apparatus.

Abstract: An elevator comprising a cabin (1), vertical guide elements (2, 3) for guiding said cabin, at least one suspension or support belt (4, 5), groups of pulleys associated to the guide elements and the cabin; each of said groups of pulleys is composed of at least two coplanar pulleys arranged on parallel axles and vertically one above the other; each of the groups of pulleys comprises pulleys having a diameter decreasing from a pulley of a maximum diameter to a pulley of a minimum diameter. Preferred embodiments of the belts having one or two concave or convex surfaces and internal reinforcing wires are disclosed.

Abstract: An elevator system includes an elongated suspension member, a load-receiving part suspended on the suspension member, a counterweight suspended on the suspension member for supporting the load-receiving part, an elongated traction member for exerting a pulling force on the load-receiving part and on the counterweight, a drive unit, with which the load-receiving part is driven by pulling the traction member and also one or more guide rails, along the path of movement determined by which the load-receiving part is moved. The drive unit is disposed to the side of the path of movement of the load-receiving part.

Abstract: The object of the invention is an elevator arrangement, which comprises at least an elevator car configured to move up and down in an elevator hoistway and at least two compensating weights, which are for their part connected to support the elevator car by the aid of their own support means, such as by the aid of ropes or belts and also e.g. diverting pulleys, and a hoisting machine provided with at least one traction sheave or corresponding, and at least one traction means such as a rope or belt, which is configured to transmit the rotational movement of the traction sheave into movement of the elevator car and of the compensating weights. Each compensating weight is connected by the aid of a traction means to the same hoisting machine.

Abstract: Elevator, which comprises an elevator car, at least one traction sheave, at least two motors for rotating one or more traction sheaves, an elevator shaft or similar, a machine room or similar space, and hoisting roping. The elevator comprises a first motor in the machine room or similar, which is on a first level in the vertical direction, and a second motor, which is on a second level in the vertical direction, which second level is essentially higher in the vertical direction than the first level.

Abstract: An elevator comprising a cabin (1), vertical guide elements (2, 3) for guiding said cabin, at least one suspension or support belt (4, 5), groups of pulleys associated to the guide elements and the cabin; each of said groups of pulleys is composed of at least two coplanar pulleys arranged on parallel axles and vertically one above the other; each of the groups of pulleys comprises pulleys having a diameter decreasing from a pulley of a maximum diameter to a pulley of a minimum diameter. Preferred embodiments of the belts having one or two concave or convex surfaces and internal reinforcing wires are disclosed.

Abstract: Method in the use of a construction-time elevator, in which method the supporting platform that supports the elevator car of the elevator is lifted higher in the elevator hoistway with a hoisting device supported on a support structure. In the method the supporting platform is suspended from the support structure via at least one hoisting device and rope comprised in the hoisting device and the supporting platform is lifted upwards in the elevator hoistway with a lifting ratio of 1:x, where x is greater than 1.

Abstract: The present invention relates to systems for maximizing the cage (4) size in lift plants by a traction machine (3) each provided with two traction pulleys (1, 2) equal in size to the half of a common pulley, on which the suspension pulleys (11, 14) are wrapped divided into two groups, each of them developing a suspension size ratio equal to 1:2 or greater, either for the cage (4) or the counterweight (5).

Abstract: A lift assembly is provided for a platform such as used on a ship. The platform can have four spaced apart hitch points. In one embodiment, the lift assembly includes four trolley drive assemblies, each trolley drive assembly including a trolley guidable along a guide rail, and a drive configured to displace the trolley along the guide rails, each trolley being coupled to at least one hitch point. In a second embodiment, a tension leveling assembly is provided in a trolley drive assembly and is configured to couple each of the wire ropes to the trolley and maintain substantially the same amount of tension in each wire rope. In a third embodiment, the lift assembly can be provided on a ship that also includes a vessel for holding water.

Abstract: In an elevator apparatus, first and second raised/lowered bodies are raised and lowered by hoisting machines. The second raised/lowered body has a raised/lowered main body and a rocking member rockably connected to the raised/lowered main body. The raised/lowered main body is suspended by a main rope via the rocking member. The main rope has a first rope end connected to the rocking member on one side of a rocking center of the rocking member and a second rope end connected to the rocking member on another side of the rocking center.

Abstract: An elevator installation includes a drive unit moving a car and a counterweight in an elevator shaft. The drive unit has a drive motor and a brake coupled to a drive shaft and mounted on a crossbeam in the elevator shaft or on the shaft ceiling. The drive unit has two spaced-apart drive zones and the drive motor is arranged to the left or the right of the two drive zones with the brake on the same side or the opposite side of the drive zones.

Abstract: An elevator installation includes a drive unit moving a car and a counterweight in an elevator shaft. The drive unit has a drive motor and a brake coupled to a drive shaft and mounted on a crossbeam in the elevator shaft or on the shaft ceiling. The drive unit has two spaced-apart drive zones and the drive motor is arranged to the left or the right of the two drive zones with the brake on the same side or the opposite side of the drive zones.

Abstract: A conveying device comprises a body in which a power source and two scroll wheels of the same diameter and rotating synchronously are disposed. Each scroll wheel is wound with an elongated elastic extension plate having rigidity, and one end of each elastic extension plate extends out of the body. When in use, the power source is used to drive the two scroll wheel to rotate synchronously, so as to drive the elastic extension plates of the two scroll wheels to synchronously extend out of or retract in the body. When the ends of the two elastic extension plates extended out of the body are assembled with a clamp or a loading seat, thereby, the conveying operation can be carried out.

Abstract: An apparatus for lowering an urn comprises a frame, a substantially horizontal platform for supporting the urn, and a lowering mechanism mounted to the frame that is releasably connected to the platform The lowering mechanism automatically releases the platform when the platform is in the bottom position. To releasably connect the lowering mechanism to the frame, four hangers may be used to releasably connect the platform to respective suspension straps. Each hanger may comprise a square body for insertion through a corresponding square hole in the platform. Each hanger may have a pivoting arm that pivots into a substantially horizontal posture to support the platform from underneath, the pivoting arm of the hanger comprising a counterweight to cause the pivoting arm to return to a substantially vertical posture when legs underneath the platform reach the bottom position.

Abstract: An elevator with a 4:1 cable guidance includes a drive unit and a first deflecting roller arranged at a carrier supported at one end on a first car guide rail and a first counterweight guide rail and at the other end on a second counterweight guide rail. The guide rails are connected with the shaft wall by means of yokes, whereby the vertical rail forces are conducted into the shaft pit. A drive bracket arranged at the carrier carries the drive unit and the drive pulley. A roller bracket arranged at the carrier carries the first deflecting roller. In addition, a first cable fixing point and a second cable fixing point for opposite ends of a cable are arranged at the carrier. The second deflecting roller is supported on a second car guide rail.

Abstract: A load-bearing member operable to be driven by a drive sheave in an elevator system is provided. The load-bearing member has a body defined by a thickness, a width that is greater than the thickness, and a length. The body comprises a single solid material that is uniform in the cross-section, and is sufficiently flexible to permit the member to wrap at least partially around the drive sheave of an elevator system. An elevator system is also provided that includes the aforesaid load-bearing members, a car, a counterweight and a drive sheave. The load-bearing members connect the car and counterweight to the drive sheave, and are wrapped at least partially around the drive sheave.

Abstract: An elevator drive unit including a traction sheave supported by a shaft rotatably supported by a pair of bearings. Mounted on opposite free ends of the shaft are rotors of a pair of electric motors. Cage-housings on a pair of spaced bearing end-plates retain the stators of the motors. A plurality of frequency converters operating in a master/slave mode to supply electrical power to the motors.

Abstract: An elevator including a car placed in an elevator shaft so as to move vertically along a pair of car guide rails, and a counterweight placed in the elevator shaft so as to move vertically along a pair of counterweight guide rails. A rope connects the car and the counterweight. A hoisting machine drives the rope. The hoisting machine is mounted on a base attached to the upper ends of the counterweight guide rails and the upper end of one of the pair of car guide rails.

Abstract: An elevator comprises an elevator car and support belts that form a 4:1 suspension for the elevator cabin and that are looped several times beneath the elevator car. Several parallel, flat belts are used and the rollers of at least one fixed roller group that diverts the belts are positioned in such a way that the belt sections of the parallel belts lie vertically above one another in the vicinity of the belt diversion.

Abstract: An elevator system includes guide rail mounted machine (16) and a sheave assembly (32) that accommodates a guide rail (38) within a hoistway. The inventive sheave assembly includes individual sheave portions (54) rotatable along a common axis. At least two of the sheave portions are spaced apart along a shaft (50) and a portion of the guide rail extends toward the axis beyond a plane formed tangent to the outside diameter of the sheave portions.

Abstract: An elevator control device for controllably driving multiple traction units includes position sensors and current supplies. Each of the current supplies includes a position controller for generating a speed command for the corresponding traction unit based on input difference between a common position command for the traction units and a feedback signal derived from an output of the pertinent position sensor, a speed controller for generating a current command for the corresponding traction unit based on an input difference between the speed command generated by the position controller and a feedback signal obtained by differentiating the output of the pertinent position sensor, and a current controller for supplying an electric current to the corresponding traction unit based on the current command generated by the speed controller.

Abstract: A cable control apparatus having a carrier and one or more trigger points disposed on a cable. A control mechanism controls movement of the cable and has a plurality of sensors to sense the one or more trigger points, and a motor to impart movement to the cable. A first sensor stops the motor and reverses direction of the cable to bring the predator to a base location, a second sensor stops the motor when the carrier reaches the base location, and a third sensor restarts the motor.

Abstract: In an elevator apparatus, a first driving machine having a first drive sheave and a second driving machine having a second drive sheave are disposed in an upper portion of a hoistway. A car and first and second counterweights are suspended inside the hoistway by a main rope body wound around the first and second drive sheaves. The car and the first and second counterweights are raised and lowered inside the hoistway by a driving force from the first and second driving machines.

Abstract: Elevators are maintained in level condition by four fixed ropes or cables passing diagonally across an elevator in angularly related opposite directions. The ropes extend from opposite corners of the elevator to fixed upper and lower ends. Moving the elevator causes equal and opposite changes in lengths of the portions of the ropes extending upward and downward from the pulleys on the elevator, keeping the elevator level.

Abstract: The invention comprises a support structure for an elevator system comprising a pit channel module having a first leg and a second leg connected at a corner, a header module having three sides forming a triangle which is disposed in a horizontal plane above the pit channel module, and pairs of car guide rails and counterweight guide rails extending vertically from the pit channel module to the header module. Vertical forces generated within the system are transferred from the rails through the pit channel module and into a foundation so that at least substantially no vertical load forces are imparted on the building structure which the system serves.

Abstract: The present invention provides a carrying apparatus that prevents an elevating motor and the like from projecting from a stacker crane to hinder the stacker crane from interfering with walls of an automatic warehouse. A traveling vehicle 2 of a stacker crane comprises traveling driving means 20, 20 for wheels 9, and elevation driving means 35 for elevating and lowering a platform 4. Both driving means 20, 35 are arranged so that a longitudinal direction of both driving means 20, 35 is almost parallel with a direction in which the traveling vehicle 2 runs. The traveling vehicle 2 comprises a pair of frames 17, 17 spaced at a predetermined distance from each other and a plurality of connecting members that connect both frames 17, 17 together. Both driving means 20, 35 are arranged outside the respective frames 17. Wheels 9, 9 are arranged in the front and rear, respectively, of the traveling vehicle 2. The traveling driving means 20 is connected to each wheel 9.

Abstract: An elevator apparatus has first and second car suspending pulley devices mounted on a car. First and second counterweight suspending pulley devices are mounted on a counterweight. In the upper portion of the interior of a hoistway, there are arranged a car side return pulley device and a counterweight side return pulley device. A main rope suspending the car and the counterweight has first and second ends. The portion of the main rope extending from the first car suspending pulley device to the first end and the portion of the main rope extending from the second car suspending pulley device to a driving sheave are respectively arranged on opposite sides of a vertical plane passing centrally through the car.

Abstract: A termination assembly for supporting and securing an end section of a belt in an elevator system includes a first support member that is fixed in a selected position within the elevator system. A second support member of one example is at least partially received over the first support member. The first support member includes at least one stop portion extending outward from a body of the first support member. The second support member includes at least one stop portion extending inward from an interior of the second support member. A plurality of motion limiters, which are inserts in one example, are received between the stop portions to limit relative rotary movement between the first and second support members. The load bearing member is received around the exterior of the second support member where it is secured in a selected position.

Abstract: An elevator installed in an elevator shaft has a cage, a counterweight, hoist cables suspending the cage and the counterweight, and a driving unit disposed outside a space in which the cage moves vertically in the elevator shaft, and provided with drive sheaves around which the hoist cables are wound to move the cage and the counterweight in the elevator shaft by the driving unit. The hoist cables are wound around the drive sheaves and sheaves supported on the cage and the counterweight in two-to-one roping arrangement such that the driving unit is at a level below the ceiling of the cage as located at its uppermost position. The cage-side sheaves are disposed at four positions on the lower portion of the cage respectively and symmetrically with respect to a center of gravity of the cage in a top plan view.

Abstract: A termination assembly for supporting and securing an end section of a belt in an elevator system includes a first support member that is fixed in a selected position within the elevator system. A second support member of one example is at least partially received over the first support member. The first support member includes at least one stop portion extending outward from a body of the first support member. The second support member includes at least one stop portion extending inward from an interior of the second support member. A plurality of motion limiters, which are inserts in one example, are received between the stop portions to limit relative rotary movement between the first and second support members. The load bearing member is received around the exterior of the second support member where it is secured in a selected position.

Abstract: A traction arrangement for propelling an elevator cab within an elevator system includes a traction device. The traction device applies a load normal to a driving sheave that biases the elevator rope or belt against the sheave. The tension device preferably includes a plurality of rolling members that move about their axes responsive to relative movement between the driving sheave and the rope or belt. A traction belt rides upon the rolling members and the traction belt engages the rope or belt to bias it against the driving sheave with a preferably distributed force.

Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.

Abstract: In an elevator, a driving unit is installed at the top of an elevator shaft above a counterweight. Traction sheaves engage with ropes and are rotated by the driving device. These traction sheaves are positioned close to wall surfaces of the elevator shaft, that are adjacent to its wall surface facing the counterweight. The traction sheaves are also positioned outside the horizontally projected plane of a car.

Abstract: The invention relates to a traction sheave elevator. The elevator car has been arranged to move along guide track in an elevator shaft. The counterweight has been arranged to move along guide track in the elevator shaft. Both ends of rope are attached to a fixed overhead structure. The elevator car and the counterweight are supported by the rope. The rope is passed via a number of rope pulleys, one of which is the traction sheave while the others are diverting pulleys. Rope pulleys are connected to the counterweight, to the fixed overhead structure in the upper part of the elevator shaft and to the elevator car. The elevator car is provided with a first pair of car rope pulleys placed at a distance from each other. The traction motor has been arranged to drive one of the rope pulleys, which is the traction sheave. Connected to the elevator car is a second pair of car rope pulleys, in which the car rope pulleys are at a distance from each other.

Abstract: A segmented elevator sheave assembly has independently variable shoulder and crowning elements for use with flexible flat ropes in an elevator system. This enables selection of high-traction surface finish and crowning for the sheave groove that contacts a belt, and of low-traction, smooth sheave groove shoulders having a low friction coefficient that may inadvertently contact the belt side surfaces. This configuration is more forgiving to angular misalignment of the sheave and reduces the likelihood of premature degradation of a flat flexible rope due side-surface scuffing along sheave groove shoulders.

Abstract: A tension member for an elevator system has an aspect ratio of greater than one, where aspect ratio is defined as the ratio of tension member width w to thickness t (w/t). The increase in aspect ratio results in a reduction in the maximum rope pressure and an increased flexibility as compared to conventional elevator ropes. As a result, smaller sheaves may be used with this type of tension member. In a particular embodiment, the tension member includes a plurality of individual load carrying ropes encased within a common layer of coating. The coating layer separates the individual ropes and defines an engagement surface for engaging a traction sheave.

Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.

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: An elevator system including two counter rotating drive sheaves and a drive rope frictionally engaging both drive sheaves to position an elevator car within a hoistway.

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 storage platform and lift apparatus comprises a plurality of platforms; four cables; a plurality of elongated brace members; four elongated vertical members, each having a plurality of apertures extending therethrough; and a drive axle. A pulley wheel is rotatably coupled to two vertical members, while the other two vertical members support a drive axle which contains the four cables. A plurality of brace members support the vertical members in an upright, stable position. Upper and lower gear assemblies, in combination with the four cables extending outwardly away from the drive axle and coupled to the platforms, provide means to raise and lower the platforms to any desired height for either short- and long-term storage of machinery, equipment, and the alike.

Abstract: An elevator drive machine having two counter-rotating rotors provides a lightweight, efficient machine that eliminates reaction torque on surrounding structures by directing reaction forces and driving forces to the elevator car being lifted.