Abstract: There is provided an machineroom-less elevator which can reduce the pit depth in a bottom part of an elevator shaft, mostly perform maintenance work on an upper space of a cage, and reduce a top clearance. A pair of right and left cage-side sheaves are disposed in the upper space of the cage, and the rotational axes of the traction sheave and the cage-side sheaves are extended in the longitudinal direction. A sheave supporting beam to rotatably support cage-side sheaves is disposed in a space between and upper beam of the cage frame and a ceiling of the cage, and disposed below rotary shafts of the cage-side sheaves.

Abstract: An elevator hoisting machine includes a first rotary part having a sheave, a brake-side end plate, and a brake disk integrally formed together, a second rotary part having a rotor with a permanent magnet and a motor-side end plate integrally formed together, wherein the second rotary part is coaxially coupled to the first rotary part with the sheave abutting on the rotor. A sheave casing serves to cover the first rotary part and support the inner periphery of the brake-side end plate, and includes a brake main body which makes contact with the brake disk body to provide braking. A frame serves to covers the second rotary part and support the inner periphery of the motor-side end plate, and includes a stator arranged to face the permanent magnet. The sheave casing and frame are coupled together to form an external enclosure.

Abstract: An elevator having a car and a suspension member or respectively hoisting member for carrying an operating weight. Furthermore, a power transmission is intended for moving the suspension member and the hoisting member over at least one moving surface of the power transmission. The power transmission and the suspension member or respectively hoisting member are rope-shaped and/or belt-shaped. Also, the power transmission and the suspension member or respectively hoisting member are physically separated from each other. The power transmission and the suspension member or respectively hoisting member are stretched against at least one supporting body.

Abstract: An elevator installation has a support device engaging a driven drive pulley for driving an elevator car. The support device loops around the drive pulley at least partly and has a safety section which is so arranged that the safety section interacts with the drive pulley when the elevator car or a counterweight after overrunning an upper position approaches an upper shaft end. The safety section is formed in such a manner that a slipping through results due to the interaction between the drive pulley and the support device.

Abstract: An assembly arrangement for a lift construction supports the lift drive at the upper end of both a support column and lift cage and counterweight guide rails, allowing the lift drive load to be transferred to the floor of the lift by each of the supporting members. The support of the lift drive upon the rails may be accomplished through setting screws that allow the load applied to the rails to be adjusted.

Abstract: A drive for an elevator installation which drives a car and a counterweight with a supporting and driving belt includes a drive shaft and at least one drive pulley driven in rotation by a motor. An air guide element is arranged in the region between the motor and the drive pulley and guides air from the region of the supporting and driving belt along the drive shaft and through the motor.

Abstract: A hoisting machine is interposed between a wall of a hoistway and a car when viewed in a horizontally-projected perspective, and a drive sheave is located opposite the wall of the hoistway. Vibration prevention members are located between the hoisting machine and a mount member attached to fixing members in the hoistway. The vibration prevention members are located at surfaces of upper and lower portions of the mount member facing the hoisting machine, supporting the hoisting machine on the mount member from underside. As a result, vibration control of the hoisting machine can be readily achieved, and the torque acting on the hoisting machine is supported by horizontal rigidity of the vibration prevention member. Consequently, the hoisting machine can be attached to the mount member without failure. Vibration and noise, which would arise during operation of an elevator in a hoistway of a building, is reduced, thereby making the environment of the elevator silent.

Abstract: The invention provides an elevator apparatus comprising a cage 1 disposed inside a path of upward or downward movement vertically movably, a counterweight 2 vertically movable with the upward or downward movement of the cage 1, and a lift drive mechanism for driving the cage 1 upward or downward. The drive mechanism comprises a sheave 42 disposed inside the path, ropes 3 extending along a route around the sheave 42, and a drive device 5 in engagement with the ropes 3. The drive device 5 comprises a belt transmission provided alongside the ropes 3 and revolvingly movable along the rope extension route, a mechanism for pressing a belt surface of the belt transmission into contact with the ropes 3, and a drive motor for driving the belt transmission. The cage can be driven upward or downward without using any traction sheave, while the cage can be reduced in weight.

Abstract: A flexible construction for an elevator gearless traction drive machine having a frame that is easily adaptable to traction sheaves of differing widths and diameters while providing the necessary stability for the drive components without an additional structure. The frame is comprised of a pair of frame members joined by a plurality connecting rods. The connecting rods can be mounted in various positions based on the diameter of the sheave to avoid interference between the drive mount and suspension means. Longer or shorter connecting rods may be used based on the width of the sheave.

Abstract: In a cable lift, with a single compartment or shaft (1) for housing a movable cage (2) and an apparatus (3), comprising at least one fixed winch (4) and a counterweight (5), for displacement of the cage (2), the counterweight (5) performs travel movements shorter than those of the cage (2) so that a part (1a) of the shaft (1) is always free to house the winch (4) therein. The latter, in particular, comprises a traction pulley (4c) with its axis (4a) parallel to a wall (1b) of the shaft (1), next to which it is arranged.

Abstract: In an elevator installation with an elevator car and a counterweight suspended and driven by several flat-belt-type suspension devices arranged in parallel, the suspension devices are arranged in parallel vertical planes that run diagonal to main horizontal axes of the counterweight and/or of the elevator car. Mounted on the counterweight and on the elevator car are suspension-sheave systems of which at least one comprises several suspension-sheave units which each have one suspension sheave and are arranged adjacent to each other, the suspension-sheave units being fastened to the counterweight and/or to the elevator car in such manner that the axles of the suspension sheaves are essentially horizontal and each are swivelable about one associated vertical axis.

Abstract: A rotational machine includes a shaft, a rotary member rotatably mounted on the shaft with a bearing fitted between the shaft and the rotary member, an oil seal for sealing the bearing to prevent leakage of lubricant from inside the bearing through its axial end onto a surface of the rotary member, a brake which comes into sliding contact with a contact surface area formed on the surface of the rotary member for arresting rotation of the rotary member, a supporting member fixedly mounted on the shaft face to face with the rotary member forming a gap therebetween, the gap serving as a fluid path through which the lubricant which has leaked over the oil seal is allowed to flow, and an oil stop portion formed at a location in the gap between the oil seal and the contact surface area for impeding flow of the leaked lubricant.

Abstract: An elevator system includes a roller arrangement and a belt for supporting an elevator car. The roller arrangement has two rollers with approximately parallel axes of rotation and structured circumferential surfaces engaging a complementary structured surface of the belt. The structured surfaces have alternating ribs and grooves. The belt is twisted about its longitudinal axis between the two rollers to keep the structured surfaces in contact and forms an under-looping for support of the elevator car.

Abstract: An elevator system without a machine room is disclosed. In this elevator system without a machine room according to the present invention, a built-in winding apparatus is installed in the interior of a hoistway for moving an elevator car. In addition, the elevator system without a machine room according to the present invention is characterized in that a movement stroke of a counterweight is shorter than a movement stroke of an elevator car, and a reinforcing installation member is installed across an upper portion of a pair of counterweight guide rails which corresponds to an upper counterweight moving distance, and a pair of counterweight guide rails are integral with the reinforcing installation member, and the built-in winding apparatus is installed on the reinforcing installation member in such a manner that the elevator car is moved by a driving force transferred by a motor roping unit.

Abstract: An elevator pit assembly for mounting and supporting car and counterweight rails, preferably in a tri-rail configuration, has first and second plates joinable in alternative right-angle configurations. The first plate accommodates a rail assembly having car and counterweight rails and a spaced lone counterweight rail, while the second plate accommodates a lone car rail. The plates may be bolted together through flanges.

Abstract: A cable elevator includes a car which travels on first parallel guides and a counterweight which travels on second parallel guides, the guides being located in a respective first and second parallel planes. Drive machinery is arranged on an engine mount between the guides, the first guides extending upward past the mount, the second guides ending at the mount. Laterally spaced lower guide elements and laterally spaced upper guide elements are fixed to the car and engage the first guides. A support cable is fixed to the underside of the car so that the car can pass the drive machinery vertically.

Abstract: An elevator apparatus has an actuating device including a sheave around which a rope engaged with an ascending and descending cage is wound and a driving section for rotating the sheave. The sheave is adapted to rotate to move the rope with its rotation. The actuating device is installed in a machine room provided on a top floor of a building in which the ascending and descending cage is disposed. The machine room faces with an elevator passage for the cage.

Abstract: An autobalancing roping and drive arrangement for elevators which continuously balances the weight of an elevator cab and the weight of a counterweight such that the force on the drive motor necessary to move the cab from floor to floor is minimized. A weighting device connected to a drive sheave imparts a downward force on the drive sheave and creates a tension in a force section, causing traction contact between the drive sheave and the drive rope. The tension in the force section includes a downward vertical component of force. This component and the weight of the counterweight combine to create a downward force on one side of the suspension sheave section. The downward force balances the downward force created by the weight of the cab on the opposite side of the suspension sheave section. The tension in the force section automatically compensates for the difference in weight between the cab and the counterweight and thereby maintains the elevator in balance.

Abstract: A height of a case body (54) for covering an actuating device (1) is so designed as to be lower than a height of an operator. The actuating device (1) and the case body (54) will not largely project from a rooftop (50) of the building in which an ascending and descending cage (52) is disposed, and cost for the case body (54) can be lowered.

Abstract: An elevator system includes a hoistway including a hoistway wall and a bottom portion, the hoistway wall including a protrusion projecting from the hoistway wall inside the hoistway, a vertical moving member ascending and descending the hoistway without interfering with the protrusion, and a control panel for controlling the movement of the vertical moving member, the control panel being disposed within the hoistway and in an overlapping relationship with a projected region of the protrusion, projected in the direction of movement of the vertical moving member. The space within the hoistway is efficiently utilized and easy maintenance of the elevator system is provided.

Abstract: An elevator system includes an elevator hoistway defined in a surrounding structure, such as a building. An elevator car and counterweight are located in the hoistway. A drive motor and associated drive sheave are disposed at a bottom portion of the hoistway. The drive motor is coupled to the elevator car and the counterweight via at least one flat rope for moving the elevator car upwardly and downwardly along the hoistway.

Abstract: A hoisting machine includes a stationary part having a shank and a stationary frame integrally formed with the shank, and a motor stator provided to the stationary frame. A rotary part includes a rotary frame rotatably supported to the shank through a bearing and facing the stationary frame, a sheave integrally formed with the rotary frame on the side opposite to the stationary frame, a motor rotator arranged at the outer periphery of the rotary frame and facing the motor stator, and a brake wheel integrally formed with the rotary frame and having a larger diameter than that of the sheave. A braking device is mounted to the stationary frame and coming in contact with the brake wheel for braking operation.

Abstract: An elevator the drive unit is arranged laterally in a top section of an elevator shaft and, as seen from a shaft door opening, at a side wall of the elevator shaft. At least one cable is guided over deflecting rollers of a support frame of the elevator car and over deflecting rollers of the counterweight and serves as a support and drive cable for the elevator car or the counterweight. The cable is guided over a drive pulley of the drive unit and is arranged transversely to the side wall. The support frame is constructed as a rucksack frame with an upright frame guided by guide rails and a horizontal base frame on which the elevator car is arranged. On travel to the uppermost stopping point, the upper part of the elevator car travels past the drive unit.

Abstract: An elevator system (1) includes a guide rail bracket (10) attached to a single hoistway wall (20). Car guide rails (5) and counterweight guide rails (6) are fixed to the bracket (10). The counterweight guide rails (6) are positioned in between the car guide rails (5) so that the counterweight (11) can translate therebetween. The elevator car (8) is supported by rope (4) and sheave (2, 3) members coupled to a traction drive (16).

Abstract: A transmission belt for driving and/or supporting an elevator car has a longitudinally extending body including an area tensile layer reinforced by chemical fibers. The belt can have a flat friction layer or a friction layer including alternating longitudinally extending wedge-shaped ribs and grooves. Transverse grooves can be formed across the width of the longitudinally grooved friction layer.

Abstract: A load transporting apparatus includes a movable traction device connected with the load and having a section in contact with at least one roller in order to guide the traction device. The roller has a coating on a carrier for contact with the traction device section. A coefficient of friction between the traction device and the coating is less than the corresponding coefficient of friction for contact between the traction device and the carrier. The coating reduces or avoids, on movement of the traction device relative to the roller, torsion of the traction device about a longitudinal axis and/or deformation of the traction device transversely to the direction of movement, particularly in the case of movement of the traction device obliquely with respect to the longitudinal direction thereof, and reduces the sensitivity of the traction device to wear, particularly when the traction means is under diagonal tension.

Abstract: A hoisting machine for an elevator, mounted on and fastened to one side of an elevator or counterweight guide rail. The machine comprises at least an elevator motor and a traction sheave driving the elevator ropes, and two operating brakes of the elevator. The hoisting machine is fastened to the guide rail via the operating brakes or by a point in the immediate vicinity of the operating brakes.

Abstract: An elevator system includes at least one drive with at least one drive pulley, an elevator car and at least one counterweight as well as flat-belt-like support for the car and the counterweight. The elevator car and the counterweight have at least one support roller. The flat-belt-like support means together with the drive pulley and the support rollers form at least one 2:1 suspension system for the car and the counterweight. The flat-belt-like support can be a wedge-ribbed belt or a cogged belt.

Abstract: A wedge-ribbed belt supports an elevator car by underlooping and engages a drive pulley of a drive mounted at the head of an elevator shaft. The belt has a running surface facing the drive pulley with a plurality of ribs and grooves extending in parallel in a longitudinal direction of the belt. The ribs and grooves can be triangular-shaped or trapezium-shaped in cross section. A plane of the drive pulley is arranged vertically and at right angles to a car wall at a counterweight side of the elevator car and approximately in a middle of a car depth with a vertical projection of the drive pulley onto the counterweight side being outside a vertical projection of the counterweight side. A part of a vertical projection of the drive motor is superimposed on the vertical projection of the counterweight side of the elevator car.

Abstract: An elevator in which a dimension of an elevator shaft does not need to be increased when enlarging a hoist, and a position where a cage is suspended by a hoist cable can be flexibly selected. In an elevator according to the present invention, a hoist 10 is disposed such that a rotational axis thereof is vertically extended. Thus, when an axial dimension of the hoist 10 is increased to enlarge the hoist 10, a dimension of an elevator shaft does not need to be increased. Since a driving shaft 10a of the hoist 10 is vertically extended, an area occupied by the hoist is remarkably reduced when viewed in a horizontal cross-sectional view of the elevator shaft. Thus, the freedom to dispose the hoist 10 is enhanced so that a position where a cage 3 is suspended by a hoist cable 14 can be flexibly selected.

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 cords encased within a common layer of coating. The coating layer separates the individual cords and defines an engagement surface for engaging a traction sheave.

Abstract: A steering angle of an elevator sheave on a shaft is adjusted at installation and subsequently during maintenance by one of several embodiments. In one embodiment, a bolt with a jam nut is adjusted to position the shaft precisely. In another embodiment, a tee bracket is anchored to a hoistway wall, and a jack bolt with shims is used to adjust the vertical placement of the long beams that support the elevator car frame and therefore the shaft.

Abstract: A braking device includes a brake wheel, a pair of rotation shafts, a pair of brake arms which is rotatably supported through the rotation shafts, a pair of brake pads arranged at one end of the brake arms and contacting and separating from the brake wheel, and a brake part connected to another end of the brake arms for providing and releasing a braking force of the brake pads. When the centers of the rotation shafts are fulcrums, the centers of contact of the brake pads with the brake wheel are points of action, and the connections between the brake arms and the brake part are power points, the fulcrums, the points of action, and the power points are located in a semicircular area of the brake wheel.

Abstract: An assembly arrangement for a lift construction supports the lift drive at the upper end of both a support column and lift cage and counterweight guide rails, allowing the lift drive load to be transferred to the floor of the lift by each of the supporting members. The support of the lift drive upon the rails may be accomplished through setting screws that allow the load applied to the rails to be adjusted.

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: A driving apparatus for an elevator includes rotary elements disposed in such a manner as to be in contact with a circumferential surface of an input shaft adapted to be rotationally driven by an electric motor device so as to rotate as the input shaft rotates, a cylindrical element disposed in such a manner as to be in contact with the rotary elements on an inner circumferential surface thereof so as to rotate as the rotary elements rotate, and a sheave provided on an outer circumferential side of the cylindrical element and configured so as to be wound therearound with ropes for lifting up and/or down a moving cage of the elevator. A brake device is disposed in a radial direction of the sheave for braking a brake disc constructed so as to extend in the radial directions and secured to the sheave.

Abstract: The invention relates to a gearless cable lift with a drive disk mechanism which is dually wound by several bearer cables, comprising a counter disk (3), an elevator car (6), guide tracks for the elevator car (6) and a counter weight, especially for installation with a machine room. According to the invention, the bearer cables are guided in semicircular grooves and the ratio of the drive disk diameter to the nominal diameter of the bearing cables is 40.

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 hoisting machine is interposed between a wall surface of a hoistway and a car when viewed in a horizontally-projected perspective, and a drive sheave is placed so as to oppose the wall of the hoistway. Vibration prevention members are provided between a mount member attached to the fixing members provided in the hoistway and upper and lower sections at surfaces of the mount member facing the hoisting machine, thereby supporting the hoisting machine on the mount member.

Abstract: An elevator installation and a method of arranging a drive motor for moving a car and a counterweight in a shaft includes mounting the drive motor on a crossbeam fastened at end regions to a pair of counterweight guides and fastened at a center region to at least one car guide.

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 rope elevator has a car and a counterweight hanging on suspension ropes and moving in opposite directions along guiderails in a hoistway. The elevator is driven by a drive unit with a traction sheave that is placed above the travel-path of the counterweight so that the upper part of the car can reach a position in the hoistway above the drive unit. The suspension ropes run from a first hitch-point in the vicinity of the counterweight-side side-wall and around one or two pulleys of the counterweight, around the traction sheave, down and horizontally/diagonally across two pulleys underneath the car, and up to a second hitch-point on the car-side side-wall of the hoistway. The drive unit is fastened by a supporting construction exclusively to the two counterweight guiderails and to the car guiderail on the counterweight side of the car.

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: 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 cords encased within a common layer of coating. The coating layer separates the individual cords and defines an engagement surface for engaging a traction sheave.

Abstract: An apparatus or tool for installing an elevator hoist machine to a support at the top of the vertically extending guide rails. The apparatus includes means for imparting vertical movement to the hoist machine and horizontal movement thereto at the upper ends of the guide rails to enable hoist machines to be installed in areas with limited ceiling height.

Abstract: An autobalancing roping and drive arrangement for elevators which continuously balances the weight of an elevator cab and the weight of a counterweight such that the force on the drive motor necessary to move the cab from floor to floor is minimized. A weighting device connected to a drive sheave imparts a downward force on the drive sheave and creates a tension in a force section, causing traction contact between the drive sheave and the drive rope. The tension in the force section includes a downward vertical component of force. This component and the weight of the counterweight combine to create a downward force on one side of the suspension sheave section. The downward force balances the downward force created by the weight of the cab on the opposite side of the suspension sheave section. The tension in the force section automatically compensates for the difference in weight between the cab and the counterweight and thereby maintains the elevator in balance.

Abstract: An elevator hoisting rope set (3) suspends a counterweight (2) and an elevator car (1). The elevator has one or more rope pulleys provided with rope grooves, one of said rope pulleys being a traction sheave (7) that moves the hoisting ropes (3). At least the traction sheave (7) has against the hoisting rope (3) a coating adhesively attached to it and increasing the coefficient of friction. At least the traction sheave (7) and the hoisting ropes (3) together form a material pair in which the hoisting ropes (3) bite into the traction sheave (7), maintaining a grip sufficient for the operation of the elevator even in an exceptional situation where the coating (102) increasing the coefficient of friction on the surface of the traction sheave (7) is lost.

Abstract: An elevator having a car and a suspension member or respectively hoisting member for carrying an operating weight. Furthermore, a power transmission is intended for moving the suspension member and the hoisting member over at least one moving surface of the power transmission. The power transmission and the suspension member or respectively hoisting member are rope-shaped and/or belt-shaped. Also, the power transmission and the suspension member or respectively hoisting member are physically separated from each other. The power transmission and the suspension member or respectively hoisting member are stretched against at least one supporting body.

Abstract: An elevator comprising car guide rails (15) disposed in the vertical direction of an elevator shaft on the same side of the car (8), an elevator car moving along the car guide rails, counterweight guide rails (16) placed in the elevator shaft, a counterweight (13) moving along the counterweight guide rails. In addition, the elevator comprises a number of diverting pulleys and a traction sheave driven by a drive motor and mounted in the upper part of the shaft for the transmission of hoisting power, which are disposed in the elevator shaft on the same side of the car, a drive motor (1) arranged to drive one of the diverting pulleys, and a rope system. The traction sheave (2, 9) and at least two diverting pulleys are mounted in the upper part of the elevator shaft. The elevator car (8) and the counterweight (13) are provided with at least one diverting pulley each. Both the car and the counterweight have a suspension ratio of 3:1 or greater.

Abstract: An elevator has a car that moves along at least one guiderail in a hoistway and the car is supported by at least one suspension rope that is driven by a drive unit. The drive unit has a drive motor that rotates rope sheave over which the suspension rope passes. The drive unit is located in an upper section of the hoistway and projects over at least part of the car. To assure safe access to the drive unit when the dimensions of the hoistway are efficiently minimized, the car has a closable opening in the roof through which the drive unit is accessible.