DE69933199T2 - Lift system with an actuator operated between the lift cabin and the bay wall - Google Patents

Lift system with an actuator operated between the lift cabin and the bay wall

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Publication number
DE69933199T2
DE69933199T2 DE1999633199 DE69933199T DE69933199T2 DE 69933199 T2 DE69933199 T2 DE 69933199T2 DE 1999633199 DE1999633199 DE 1999633199 DE 69933199 T DE69933199 T DE 69933199T DE 69933199 T2 DE69933199 T2 DE 69933199T2
Authority
DE
Germany
Prior art keywords
elevator
counterweight
system according
disc
elevator car
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE1999633199
Other languages
German (de)
Other versions
DE69933199C5 (en
DE69933199D1 (en
Inventor
W. Frank Avon ADAMS
Leandre Farmington Adifon
S. Pedro Needham BARANDA
Marc Avon CHEVILLIARD
Jean-Noil Cloux
Masashi Kawarasaki
Asoudai Yutaka 38-105 MATSUMOTO
Jean-Pierre Menard
Jean-Pierre Pougny
Bruce Bristol ST. PIERRE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otis Elevator Co
Original Assignee
Otis Elevator Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
Priority to US31108 priority Critical
Priority to US09/031,108 priority patent/US6401871B2/en
Priority to US163259 priority
Priority to US09/163,259 priority patent/US7874404B1/en
Priority to US218990 priority
Priority to US09/218,990 priority patent/US6739433B1/en
Priority to PCT/US1999/003645 priority patent/WO1999043589A1/en
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Application granted granted Critical
Publication of DE69933199D1 publication Critical patent/DE69933199D1/en
Publication of DE69933199T2 publication Critical patent/DE69933199T2/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27363792&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69933199(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Publication of DE69933199C5 publication Critical patent/DE69933199C5/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035Arrangement of driving gear, e.g. location or support
    • B66B11/0045Arrangement of driving gear, e.g. location or support in the hoistway
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B15/00Main component parts of mining-hoist winding devices
    • B66B15/02Rope or cable carriers
    • B66B15/04Friction sheaves; "Koepe" pulleys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00Other common features of elevators
    • B66B7/02Guideways; Guides
    • B66B7/021Guideways; Guides with a particular position in the shaft

Description

  • The The invention generally relates to an elevator system, in particular a An elevator system having one between an elevator car and a hoistway sidewall arranged drive motor of a rope or ropes by traction drives. BS 5655 Part I 1986 defines a traction drive elevator as such, whose ropes are frictionally engaged in the grooves of a Drive pulley of the machine are driven.
  • In The construction of a machine room for an elevator will be considerable Expenditure invested. The expenses include the cost of the design of the engine room, the structure for carrying the weight of the engine room and the equipment parts of the elevator system, also caused the costs by shading adjacent property of sunlight (e.g. according to the Sunshine Laws in Japan and elsewhere).
  • One The aim of the invention is to provide an elevator system without machine room, which the above-mentioned disadvantages in connection with conventional Elevator systems avoids. EP-A-0 719 724 discloses an elevator with traction sheave, in which a flat drive motor in one Engine room, which is provided in the elevator shaft, or in a wall education of the shaft is placed. EP-A-0 710 618 discloses a traction sheave elevator in which the prime mover unit is in an upper part of the elevator shaft is placed.
  • One Another object of the invention is the use of a flat rope technique for reducing the size of the drive motor and the sheaves, allowing either conventional or flat propulsion engines within the space that is between the elevator car and the side wall of the elevator shaft remains.
  • The Invention provides a traction drive elevator system, as it is in the claims 1, 2 and 16 is claimed.
  • One Advantage of the invention is that the elevator system in considerable Make the space requirements and construction costs of an elevator system with engine room reduced.
  • One Second advantage of the invention is the creation of several alternative options For accommodation of the drive motor.
  • One third advantage of the invention is that the flat rope technology the size of the drive motor and reduces the sheaves and thereby also reduces the space, the between the elevator car and the side wall of the elevator shaft must be present to accommodate engine and pulleys.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • 1 is a schematic plan view of an elevator system according to the invention.
  • 2 is a schematic side view of the elevator system according to 1 which illustrates a rope configuration with a loop.
  • 3 Figure 3 is a schematic side view of a second embodiment of the invention illustrating an elevator system with a 1: 1 ropeway.
  • 4 is a schematic side view of another embodiment of the invention.
  • 5 FIG. 12 is a schematic plan view of an elevator system according to another embodiment of the invention, showing the drive motor in the well pit. FIG.
  • 6 is a schematic partial side view of the in 5 shown elevator system.
  • 7 is a sectional side view of a traction sheave for multiple flat ropes, each having multiple strands.
  • 8th is a sectional view of one of the flat ropes.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • According to the 1 to 2 is an elevator system according to an embodiment of the invention with the reference character 10 designated. The elevator system includes a hoistway 12 that of a surrounding structure 14 is formed. An elevator car 16 is located inside the elevator shaft 12 and is movable up and down along it. A first and a second elevator cable pulley 20 and 22 are with the bottom of the elevator car 16 coupled relative to each other on opposite sides. The elevator system 10 contains a first and a second support column 24 . 26 on a single page 28 of the elevator car 16 are arranged and generally in relation to each other, on opposite sides 30 , 32 the elevator shaft 12 are located. Both the first and the second support column 24 and 26 extend vertically from a lower area or floor 34 the elevator shaft 12 to an upper portion of the hoistway. A (in 1 represented by dashed lines) supporting element 36 is on the first and the second support column 24 and 26 in the upper area of the elevator shaft 12 attached and extends substantially horizontally between the two support columns.
  • A drive motor 42 is together with a drive pulley coupled to the drive motor 44 on the support element 36 Held and is in a vertical space along the elevator shaft 12 between the elevator car 16 and a side wall 46 aligned the elevator shaft.
  • The elevator system 10 also contains a counterweight 48 with a counterweight pulley 50 which is coupled to an upper part of the counterweight. The counterweight 48 is located below and preferably aligned with the drive motor 42 in the vertically extending space along the elevator shaft 12 between the elevator car 16 and the side wall 46 , The counterweight 48 is with the elevator car 16 coupled via a flat rope or a belt, whereby the elevator car during its vertical movement along the elevator shaft 12 is balanced.
  • The Use of flat ropes or straps allows for smaller drive motors and drive sheaves elevator car and counterweight loads and hang up, compared with drive motors and sheaves, the conventional Use round ropes. The diameter of the drive sheaves at lifts with conventional Round ropes is limited to forty times the rope diameter or above through the fatigue the ropes when repeatedly adjusting the ropes to the diameter the pulley and straightening. Have flat ropes or straps a dimensional ratio of more than 1, this dimension ratio being defined as that Ratio of Width w of a rope or belt, to the thickness t (dimension ratio w / t). Therefore, flat ropes or straps are inherently thin in relation to usual Round ropes. Because of the thinness There is less bending stress in the fibers when the strap is around one Rope pulley of given diameter is looped. This allows the Use of traction sheaves with a smaller diameter. The Torque is proportional to the diameter of the traction sheave. Therefore, the use of a smaller diameter traction sheave reduces the engine torque. The engine size (the Rotor volume) is approximately proportional to the torque, and therefore enable Flat ropes or straps use a smaller, higher speed working drive motor compared to conventional systems Round ropes, although the mechanical output power is independent of the size of the pulley the same remains. As a result, can smaller conventional and flat drive motors in the hoistway between the elevator car and a sidewall of the hoistway, which is size and cost the elevator shaft significantly reduced.
  • Summarized offers the reduction in machine size (i.e., the size of drive motor and sheaves) a number of advantages. First, the smaller one Machine reduces the space requirement in the hoistway when the Machine above the elevator car and the side wall of the elevator shaft located. Second: A small machine requires less material and costs less in manufacturing compared to a larger machine. Third, the low weight of a small machine decreases the time for the handling of the machine and the equipment overhead to the machine to lift the installation, which significantly reduces the installation costs lowers. Fourth, low torque and high speed allow the Elimination of expensive gearboxes. In addition, gear can Cause for Vibrations and noises be, as well require lubrication maintenance. However, on request, also with gears provided machines are used.
  • flat ropes or belts also distribute the Loads of lift and counterweight over a larger surface on the pulleys, compared with Round ropes, what the specific pressure acting on the ropes reduces and thus increases the service life of the ropes. Also, can flat ropes or straps are made of a material of high traction, for example in the form of a urethane or rubber jacket with a fiber or steel reinforcement.
  • The flat rope 52 has a first and a second end 54 . 56 , each in an upper area of the hoistway 12 are coupled. Preferably, the first end 54 of the flat rope 52 with the support element 36 coupled and the second end 56 of the flat rope with the ceiling 58 the elevator shaft 12 coupled. As in 2 is shown, the flat rope runs 52 from its first end 54 on the support element 36 Starting down, wraps around at about 180 °, the counterweight pulley 50 , runs upwards and wraps around the drive pulley at about 180 ° 44 , generally runs down and undermines the elevator car 16 over the first and the second lift cable pulley 20 . 22 , and generally goes up and closes with its second end 56 on the ceiling 58 the elevator shaft 12 from.
  • A first and a second guide element 60 . 62 for guiding the elevator car 16 and the counterweight 48 are along the first and the second support column 24 . 26 arranged. The guide elements 60 . 62 can be integrated with the support columns 24 . 26 or be arranged separately from these and at the periphery of the support columns. As in 1 is shown defining the first and second guide members 60 . 62 a first and a second elevator guide surface 64 . 66 , The first and second elevator guide surfaces 64 . 66 extend vertically along the first and the second support column 24 . 26 at least over a length of the support columns, which corresponds to the stroke of the elevator car. Facing away from each other 68 . 70 of the elevator car 16 are shaped to movably cooperate with the first and second elevator guide surfaces, respectively 64 . 66 while the elevator car is moving vertically along the first and second support pillars 24 . 26 emotional. The first and the second guide element 60 . 62 also define first and second counterweight guide surfaces 72 . 74 , each vertically along the first and second support column 24 . 26 extend over at least a length of this support column, which corresponds to the movement stroke of the counterweight. Additional, opposite surfaces 76 . 78 of the counterweight 48 are shaped to movably cooperate with the first and second counterweight guide surfaces, respectively 72 . 74 while the counterweight moves vertically along the support columns. For clearer representation of the rope course in 2 is the elevator car 16 as from the first and the second support column 24 . 26 shown spaced.
  • In operation, the drive motor 42 signaled by a (not shown) control, the drive pulley 44 to turn counterclockwise to allow the elevator car to turn 16 along the elevator shaft 12 moved upwards. The counterclockwise rotating drive pulley 44 pulls a part of the flat rope 52 between the drive pulley 44 and the elevator pulleys 20 . 22 upward, which in turn causes the elevator pulleys along the flat rope toward its second end 56 roll and so on the elevator 16 along the elevator shaft 12 move upwards. When the drive pulley 44 Turning counterclockwise decreases the length of a part of the flat rope 52 , which via the drive pulley 44 loops and down towards the counterweight pulley 50 runs, causing the counterweight pulley to rotate counterclockwise and counterweight 48 along the elevator shaft 12 is lowered.
  • The drive motor 42 gets from a controller as well the instruction, the drive rope pulley 44 to turn clockwise to the elevator car 16 along the elevator shaft 12 to move down. The clockwise rotation of the drive pulley 44 pulls the section of the flat rope 52 which is around the drive pulley 44 is looped and down towards the counterweight pulley 50 runs, with the result that the counterweight pulley rotates clockwise and consequently the counterweight 48 along the elevator shaft 12 is moved upward. Turning the drive pulley 44 clockwise also extends a section of the flat rope 52 between the drive pulley and the second end 56 of the flat rope 52 , causing the elevator pulleys 20 and 22 roll along the flat rope away from its second end and so the elevator car 16 along the elevator shaft 12 move down.
  • As in the 1 and 2 is shown, the arrangement of the drive motor within the space along the hoistway between the elevator car and a side wall of the hoistway minimizes the internal height requirements because no machinery will occupy the overhead clearance projection of the elevator car or the hoistway pit area. The arrangement of the machine equipment on the side of the elevator car also reduces the overhead clearance dimension of the hoistway by requiring only space for the rope extension, buffer stroke and jumping tolerance for the counterweight.
  • Now on 3 With reference to the drawings, there is an elevator system according to a second embodiment of the invention generally designated by the reference numeral 100 Mistake. Same elements as in the 1 and 2 shown elevator system 10 are provided with the same reference numerals. The elevator system 100 is the elevator system 10 similar, only that the elevator system 10 makes use of a 1: 1 rope course, which does not require a counterweight pulley or elevator pulleys. The embodiment according to 3 is explained in terms of its aspects, which are different from the previous embodiments.
  • A first end 102 of the flat rope 52 is with the top of the counterweight 48 coupled, a second end 104 of the flat rope is connected to a lower area of the elevator car 16 coupled. The flat rope 52 runs from its first end 102 at the top of the counterweight 48 generally upwards, wraps around at about 180 ° to the drive pulley 44 , and then generally runs down and is connected to a lower portion of the elevator car 16 at 106 coupled. To clarify the representation of the rope course is the elevator car 16 as from the first and the second support column 24 . 26 shown spaced.
  • In operation, the drive motor 42 signaled by a (not shown) control, the drive pulley 44 counterclockwise drive to the elevator car 16 along the elevator shaft 12 to move upwards. The counterclockwise rotating drive pulley 44 pulls a part of the flat rope 52 between the drive pulley and the elevator car 16 upward, which in turn means that the elevator car along the elevator shaft 12 about the guide elements 60 and 62 moved upwards. When the drive pulley 44 Turning counterclockwise, a section of the flat rope takes 52 which extends between the drive pulley 44 and the counterweight 48 extends in its length, causing the counterweight along the elevator shaft 12 is lowered.
  • The drive motor is also signaled by a control, the drive pulley 44 to turn clockwise and so the elevator car 16 along the elevator shaft 12 about the guide elements 60 . 62 to move down. Turning the drive pulley 44 clockwise pulls a section of the flat rope 52 that is located between the drive pulley and the counterweight 48 extends, upward, causing the counterweight along the elevator shaft 12 is moved upward. Turning the drive pulley 44 clockwise also extends a section of the flat rope 52 between the drive pulley and the elevator car 16 , causing the elevator car along the elevator shaft 12 is moved down.
  • Now on 4 With reference to the drawings, an elevator system according to a third embodiment of the invention will be indicated generally by the reference numeral 200 designated. The same elements as in the previous embodiments are provided with the same reference numerals. The embodiment according to 4 is explained in terms of their aspects, which distinguish them from the previous embodiments.
  • A drive motor 202 and a drive pulley 204 are within an upper area of the hoistway 12 coupled, for example on the side wall 206 (as in 4 shown) or on the ceiling 208 the elevator shaft. The drive motor 202 can be stocked, for example by means of gears or by belt drive to reduce the required engine torque, and it is within a vertically extending space of the on zugschachts 12 between an elevator car 16 inside the hoistway and a side wall 206 aligned the elevator shaft. The elevator car includes a first and a second elevator cable pulley 20 . 22 which are coupled to the underside of the elevator car on opposite sides of the car. A counterweight 48 and a counterweight pulley coupled to its upper portion 50 are located below the drive motor 202 Preferably, they are with the drive motor in the room along the elevator shaft 12 between the elevator car 16 and the side wall 206 aligned. A flat rope or belt 210 is with a first and a second end 212 . 214 with an upper area of the elevator shaft 12 coupled. As in 4 can be seen, are the first and the second end 212 . 214 with the ceiling 208 the elevator shaft 12 coupled relative to each other, substantially opposite sides. The flat rope 210 generally runs from its first end 212 Starting at the bottom, the counterweight pulley wraps around with a total of 180 ° 50 , runs upwards and wraps around the drive cable pulley with a total of 180 ° 204 , generally runs down and undermines the elevator car 16 over the elevator pulleys 20 and 22 , and generally goes up and closes with its second end 214 on the ceiling 108 the elevator shaft 12 from. The operation of the elevator system 200 regarding the use of the cable configuration for moving the elevator car 16 and the counterweight 48 is similar to the operation of the in the 1 and 2 illustrated elevator system and is therefore not further explained.
  • Referring to the 5 and 6 an elevator system according to another embodiment of the invention is generally denoted by the reference numeral 300 Mistake. The same elements as in the previous embodiments are provided with the same reference numerals. The embodiment according to 5 and 6 is explained in terms of its aspects, which are different from those of the previous embodiments.
  • The elevator system 300 contains a first support element 302 which extends substantially horizontally between and with the opposite sides 304 and 306 the elevator shaft 12 is coupled in the upper region of the elevator shaft and above a vertically extending space along the elevator shaft between an elevator car 16 and a side wall 308 the elevator shaft is located. A second support element 310 extends in a similar manner Licher substantially horizontally between and is with opposite sides 304 and 306 the elevator shaft 12 coupled in the upper region of the elevator shaft, preferably in the same height as the first support element 302 , The second support element 310 is aligned over the vertically extending space along the elevator shaft 12 between the elevator car 16 and the side wall 308 and is located between the first support member 302 and the elevator car. A first and a second Umlenkseilscheibe 312 . 314 are with the first and the second support element 302 . 310 coupled.
  • A counterweight 316 with a counterweight pulley coupled to its upper portion 318 is preferably located below the first and the second support member 302 . 310 within the vertical space along the elevator shaft 12 between the elevator car 16 and the side wall 308 so that maintenance technicians an easy and secure access option is available. The elevator car 16 and the counterweight 316 be along the elevator shaft 12 partly with the help of a drive motor 320 , For example, in the form of a brushless direct drive motor, and an associated drive pulley 320 in the lower region of the elevator shaft within the vertically extending space along the elevator shaft between the elevator car 16 and the side wall 208 moved up and down. As in 6 can be seen, are the drive motor 320 and the drive pulley 320 on a floor 324 inside a hoistway pit 326 attached. A flat rope or belt 328 is in drive engagement with the drive pulley 322 to the elevator car 16 and the counterweight 316 vertically along the elevator shaft 12 to move. The flat rope 328 has a first and a second end 330 . 332 located within an upper area of the hoistway 12 are coupled. As in 6 can be seen is the first end 330 of the flat rope 328 with the second support element 310 coupled, and the second end 332 is with a blanket 334 the elevator shaft 12 , relative to the first end 330 , generally on an opposite side of the elevator car 16 coupled. The flat rope 328 generally runs from its first end 330 on the second support element 320 down, wraps around with a total of 180 °, the counterweight pulley 318 , runs generally upwards and wraps around the first Umlenkseilscheibe with generally 180 ° 312 , generally runs downwards and wraps around the drive pulley with a total of 180 ° 322 , generally runs upwards and wraps around the second deflection pulley with a total of 180 ° 314 , generally runs down and undermines the elevator car 16 over the first and the second lift cable pulley 20 . 22 , and generally goes up and closes with its second end 332 on the ceiling 334 from the elevator shaft.
  • In operation, the drive motor 320 signaled by a (not shown) control, the drive pulley 322 to rotate clockwise, creating an area of the flat rope 328 between the drive pulley 322 and the second support member 310 is pulled down. This descending area of the flat rope 328 in turn causes the second Umlenkseilscheibe 314 turns so that the length of a portion of the flat rope between the second Umlenkseilscheibe 314 and the second end 332 of the flat rope is shortened. The elevator pulleys 20 . 22 be through this shortening area of the flat rope 328 brought along along the flat rope towards the second end 332 to unwind, causing the elevator car 16 along the elevator shaft 12 is moved upward. The clockwise rotating drive pulley 322 also moves area part of the flat rope 328 between the drive pulley 322 and the first deflecting pulley 302 upward, whereby the first Umlenkseilscheibe is rotated so that the counterweight 316 along the elevator shaft 12 is moved down.
  • The drive motor 320 In addition, receives the command, the drive rope pulley from a controller 322 to rotate counterclockwise, creating an area of the flat rope 328 between the drive pulley and the second support element 310 is moved upward. This upward movement of the area of the flat rope 328 in turn causes the second Umlenkseilscheibe 310 turns so that the length of a portion of the flat rope between the second Umlenkseilscheibe and the second end 332 of the flat rope is extended. The elevator pulleys 20 . 22 be through this lengthening area of the flat rope 328 brought along along the flat rope away from its second end 332 unwind, causing the elevator car 16 along the elevator shaft 12 is moved down. The counterclockwise rotating drive pulley 322 also moves an area of the flat rope 328 between the drive pulley and the first Umlenkseilscheibe 302 down, whereby the first Umlenkseilscheibe turns so that the counterweight 316 along the elevator shaft 12 is moved upward.
  • An important feature of the invention is the flatness of the cables used in the elevator system described above. The increase in the dimensional ratio causes a rope to have an engagement surface formed by the width dimension "w" and optimized in view of the distribution of the rope pressure. Therefore, the maximum rope pressure within the rope is minimized. In addition, by increasing the dimensional ratio as compared with a round rope having a dimension ratio of one, the thickness "t1" of the flat rope (see FIG. 8th ) while maintaining a constant cross-sectional area of those portions of the rope carrying the tensile load within the cable.
  • As in 7 and 8th Shown are the flat ropes 722 several individual load-bearing strands 726 in a common sheath layer 728 are included. The coat layer 728 separates the individual strands 726 and forms an engagement surface 730 for the interaction with the traction cable pulley 724 , The load-bearing strands 726 may be made of a high tensile, lightweight and non-metallic material, such as aramid fibers, or may be made of a metallic material, such as thin fibers of a high carbon steel. It is recommended, the thickness "d" of the strands 726 keep it as small as possible to maximize flexibility and tension within the strands 726 to minimize. In addition, in the case of steel fiber strands, the fiber diameters should be less than 0.25 mm in diameter, and preferably in the range of about 0.10 mm to 0.20 mm in diameter. Steel fibers with such a diameter improve the flexibility of the strands and the rope. By incorporating strands with the weight, strength, durability and especially flexibility of such materials into the flat ropes, the diameter of the traction sheave "D" can be reduced while maintaining the maximum rope pressure within acceptable limits.
  • The engagement surface 730 is in contact with a corresponding surface 750 the traction cable pulley 724 , The coat layer 728 is made of a polyurethane material, preferably of thermoplastic urethane, wel cher on and through the multiple strands 726 is extruded so that every single strand 726 against longitudinal movement relative to the other strands 726 is held. It is also possible to use other materials for the cladding layer if such materials sufficiently perform the required functions of the cladding layer: traction, wear, transfer of traction loads to the strands and resistance to environmental influences. It will be understood that although other materials can be used for the cladding layer, then the benefits from the use of flat ropes can be reduced if they do not have or are better than the mechanical properties of a thermoplastic urethane. For the mechanical properties of thermoplastic urethane, the diameter of the traction sheave 724 reduced to 100 mm or less.
  • As a result of the construction of the flat rope 722 The rope pressure can be uniform over the entire rope 722 to distribute. By installing several small strands 726 in the elastomeric flat rope sheath layer 728 The pressure on each strand 726 significantly reduced compared to conventional ropes. The strand pressure is at least reduced by n -1/2 where n is the number of parallel cords in the flat rope is based on a given load and a given wire cross-section. Therefore, the maximum rope pressure in the flat rope is significantly reduced as compared with a conventional rope-hung elevator having a similar load bearing capacity. In addition, the effective rope diameter "d" (measured in the bending direction) is reduced for equivalent load bearing capacity, and smaller values can be obtained for the pulley diameter "D" without reducing the ratio D / d. In addition, minimizing the diameter D of the sheave allows the use of less expensive, more compact, and faster engines than the prime mover.
  • Also 7 shows a traction cable pulley 724 with a traction surface 750 responsible for receiving the flat rope 722 is configured. The engagement surface 750 is complementary designed to provide traction and to guide the engagement between the flat ropes 722 and the pulley 724 , The traction cable pulley 724 contains a pair of wreaths 744 on opposite sides of the pulley 724 , also one or more separators 725 between the adjacent flat ropes. The traction cable pulley 724 also contains linings 742 in the spaces between the wreaths 744 and the dividers 745 ,
  • The linings 742 define the engagement surface 750 such that there are side gaps 754 between the sides of the flat ropes 722 and the linings 742 gives. The pair of wreaths 744 and the separators in conjunction with the liners fulfill the function of guiding the flat ropes 722 to prevent rough alignment problems in case of rope sagging etc. Although shown as equipped with linings, the traction sheave could also do without liners.
  • Even though the present invention illustrated with reference to several embodiments and that described to those skilled in the art, that the above specified and further changes, Omissions and additions possible in their form and detail are without departing from the scope of the invention. For example, others could Rope configurations are used where the drive motor on the side of the hoistway between the elevator car and a side wall of the elevator shaft. In addition, the Drive motor in the upper free space of the elevator shaft between be arranged the elevator car and a side wall. Thus is the invention shown and described with reference to several embodiments been given as an illustration but not as a restriction.

Claims (29)

  1. A traction drive elevator system, comprising: a hoistway ( 12 ) formed by a surrounding structure; an elevator car ( 16 ) and a counterweight ( 48 ; 316 ), both in the elevator shaft ( 12 ) and suspended from a single set of elevator ropes; and a drive motor ( 42 ; 202 ; 320 ) located in a vertical space along the hoistway between the elevator car ( 16 ) and a side wall ( 46 ; 206 ; 308 ) of the elevator shaft ( 12 ), wherein the drive motor ( 42 ; 202 ; 320 ) is drivably coupled to the set of ropes by traction; the set of ropes consisting of at least one flat rope or strap ( 52 ; 210 ; 328 ) is formed.
  2. A traction drive elevator system, comprising: a hoistway ( 12 ) formed by a surrounding structure; an elevator car ( 16 ) and a counterweight ( 48 ) located in the elevator shaft ( 12 ) and suspended from a single set of elevator ropes; and a drive motor ( 42 ; 202 ) located in the upper free space of the elevator shaft ( 12 ) between the elevator car ( 16 ) and a side wall ( 46 ; 206 ) of the elevator shaft ( 12 ), wherein the drive motor ( 42 ; 202 ) is drivably coupled to the set of ropes by traction; the set of ropes consisting of at least one flat rope or strap ( 52 ; 210 ) is formed.
  3. An elevator system according to claim 1 or 2, further comprising a first and a second support pillar (10). 24 . 26 ), which are relative to each other on opposite sides of the elevator shaft ( 12 ), whereby the support columns ( 24 . 26 ) each from a floor area to an upper area of the elevator shaft ( 12 ) between the elevator car ( 16 ) and the side wall ( 46 ) of the elevator shaft ( 12 ) extend vertically, and with a support element ( 36 ) at the first and second support columns ( 24 . 26 ) is mounted in an upper region of the elevator shaft and extends substantially horizontally between them, and wherein the drive motor ( 42 ) on the support element ( 36 ) is supported.
  4. Elevator system according to claim 3, wherein the counterweight ( 48 ) below the support element ( 36 ) between the elevator car ( 16 ) and the side wall ( 46 ) of the elevator shaft ( 12 ) and wherein the drive motor ( 42 ) a drive disk ( 44 ) obtained by traction with the at least one flat rope or belt ( 52 ) is drivingly coupled.
  5. Elevator system according to one of the preceding claims, further comprising a counterweight disc ( 50 ), which are connected to an upper area of the counterweight ( 48 ), and with at least one elevator disc ( 20 . 22 ) with a bottom of the elevator car ( 16 ), wherein the at least one flat rope or the at least one belt ( 52 ; 210 ) a first and a second end ( 54 ; 56 ; 212 ; 214 ), which at an upper portion of the elevator shaft ( 12 ) are fixedly coupled, wherein the flat rope or the flat belt ( 52 ; 210 ) from the first end ( 54 ; 212 ) down to the counterweight disc ( 50 ) is wound around, running upwards and around the drive pulley ( 44 ; 202 ) are wound around, running down and over the at least one elevator disc ( 20 . 22 ) underneath the elevator car ( 16 ) and runs upwards and at the second end ( 56 ; 214 ) ends.
  6. Elevator system according to claim 5, wherein the at least one elevator disc comprises a first and a second elevator disc ( 20 . 22 ) located on a lower side of the elevator car ( 16 ) and relative to each other on opposite sides.
  7. Elevator system according to claim 5 or 6, wherein the first end ( 54 ; 212 ) of the flat rope or the belt ( 52 ; 210 ) with the support element ( 36 ) is coupled.
  8. Elevator system according to claim 3 or 4, wherein the drive motor ( 42 ) a drive disk ( 44 ) obtained by traction with the at least one flat rope or belt ( 52 ) is drivingly coupled, wherein the counterweight ( 48 ) below the support element ( 36 ) between the elevator car ( 16 ) and the side wall of the hoistway and wherein the flat rope or belt ( 52 ) with an upper portion of the counterweight ( 48 ) coupled first end ( 102 ) and one with the elevator car ( 16 ) coupled second end ( 104 ), wherein the flat rope or the belt ( 52 ) from its first end ( 102 ) on the counterweight ( 48 ) up to the drive pulley ( 44 ) is wrapped around, running down and at its second end ( 104 ) on the elevator car ( 16 ) terminates, so that a stranding configuration in the ratio 1: 1 is formed.
  9. An elevator system according to claim 3 or any preceding claim dependent thereon, wherein the first and second support columns ( 24 ; 26 ) a first and a second guide element ( 60 ; 62 ), each of the guide elements comprising a lift guide surface ( 64 ; 66 ), which extends at least over a length of the relevant support column corresponding to the path of the elevator car travel path (FIG. 24 ; 26 ) extend vertically therealong, and wherein the elevator car ( 16 ) forms opposite surfaces, which are designed for movable cooperation with the elevator guide surfaces, when the elevator car ( 16 ) vertically the support columns ( 24 ; 26 ) moves along.
  10. Elevator system according to claim 9, wherein the first and second guide elements ( 60 ; 62 ) fer each a counterweight guide surface ( 72 ; 74 ), which extend at least over a length of the relevant support column corresponding to the path of the counterweight movement path (FIG. 24 ; 26 ) extend vertically along them, and wherein the counterweight ( 48 ) forms additional opposing surfaces which are adapted to engage with the counterweight guide surfaces ( 72 ; 74 ) to interact with one another while the counterweight ( 48 ) vertically the support columns ( 24 ; 26 ) moves along.
  11. Elevator system according to one of the preceding claims, wherein the drive motor ( 42 ; 202 ) with a ceiling of the elevator shaft ( 12 ) or a side wall ( 46 ; 204 ) at an upper area of the elevator shaft ( 12 ) is firmly coupled.
  12. Elevator system according to one of the preceding claims, wherein the drive motor ( 42 ; 202 ) with a side wall ( 46 ; 206 ) of the elevator shaft ( 12 ) is coupled.
  13. Elevator system according to one of the preceding claims, wherein the flat rope or belt ( 52 ; 210 ) a first and a second end ( 54 ; 56 ; 212 ; 214 ), each with a side wall ( 46 ; 206 ) or a ceiling of the elevator shaft ( 12 ) are coupled.
  14. Elevator system according to one of the preceding claims, wherein the flat rope or belt ( 52 ; 210 ) a first and a second end ( 54 ; 56 ; 212 ; 214 ), each with the ceiling of the elevator shaft ( 12 ) are coupled.
  15. Elevator system according to claim 13, wherein the counterweight ( 48 ) below the support element ( 36 ) between the elevator car ( 16 ) and the side wall ( 46 ) of the elevator shaft ( 12 ), as well as with a counterweight disc ( 50 ), which are connected to an upper area of the counterweight ( 48 ), with at least one lift disk ( 20 . 22 ), which are connected to an underside of the elevator car ( 12 ), with a drive pulley connected to the drive motor ( 42 ) is drivingly coupled, wherein the flat rope or the belt ( 52 ) from its first end ( 54 ) down to the counterweight disc ( 50 ) is wound around, running upwards and around the drive pulley ( 44 ) is wound around, running down and over the at least one elevator disc ( 20 . 22 ) underneath the elevator car ( 12 ) and runs upwards and at its second end ( 56 ) ends.
  16. A traction drive elevator system, comprising: a hoistway ( 12 ) formed by a surrounding structure; an elevator car ( 16 ) and a counterweight ( 316 ), both in the elevator shaft ( 12 ) and suspended from a single set of elevator ropes; and a drive motor ( 320 ) located in a lower region of the elevator shaft in the vertically extending space along the elevator shaft between the elevator car (FIG. 16 ) and a side wall ( 308 ) of the elevator shaft ( 12 ), wherein the drive motor ( 320 ) is drivably coupled to the set of ropes by traction; the set of ropes consisting of at least one flat rope or strap ( 328 ) is formed.
  17. Elevator system according to claim 1 or claim 16, further comprising a first support element ( 302 ) extending substantially horizontally between opposite sides of the hoistway in an upper area of the hoistway between the elevator car (11). 16 ) and the side wall ( 308 ) of the elevator shaft, with a second support element ( 310 ) extending substantially horizontally between opposite sides of the hoistway in an upper area of the hoistway between the first support member (11). 302 ) and the elevator car ( 12 ), with a first and a second deflection disk ( 312 . 314 ), each with the first and the second support element ( 302 . 310 ), with a counterweight disc ( 318 ), which are connected to an upper area of the counterweight ( 316 ), with at least one lift disk ( 20 . 22 ) fitted with a bottom of the elevator car ( 16 ), wherein the drive motor ( 320 ) a drive disk ( 322 ) and wherein the drive motor ( 320 ) and the drive disc ( 322 ) in a lower area of the elevator shaft between the elevator car ( 16 ) and a side wall ( 308 ) of the elevator shaft are arranged.
  18. Elevator system according to claim 17, wherein the flat rope or belt ( 328 ) with the second support element ( 310 ) coupled first end ( 330 ) and a second end coupled to a ceiling or side wall of the hoistway in an upper area of the hoistway (US Pat. 332 ), wherein the flat rope or the belt ( 328 ) from its first end ( 330 ) down to the counterweight disc ( 318 ) is wound around, runs upwards and around the first deflecting disk ( 312 ), running down and around the drive pulley ( 322 ) is wound around, runs upwards and around the second deflecting disk ( 314 ) is wound around, running down and over the at least one elevator disc ( 20 . 22 ) underneath the elevator car ( 16 ), runs upwards and at its second end ( 332 ) ends.
  19. Elevator system according to claim 17 or 18, wherein the flat rope or belt ( 328 ) at its second end ( 332 ) with a ceiling of the elevator shaft ( 12 ) is coupled.
  20. Elevator system according to claim 17, 18 or 19, wherein the at least one elevator disc ( 20 . 22 ) a first and a second elevator disc ( 20 . 22 ) located on a lower side of the elevator car ( 16 ) and are located on opposite sides relative to each other.
  21. Elevator system according to one of the preceding claims, wherein a drive disc ( 724 ) is drivingly coupled to the drive motor and the disc is a traction surface ( 750 ) for receiving the at least one flat rope or belt ( 722 ) and the traction surface ( 750 ) is designed to be complementary to provide traction and the engagement between the at least one flat rope or belt ( 722 ) and the disc ( 724 ) respectively.
  22. Elevator system according to one of the preceding claims, wherein one or the drive disc ( 724 ) is drivingly coupled to the drive motor and the diameter of the disc ( 724 ) Is 100 mm or less.
  23. Elevator system according to one of the preceding claims, wherein the at least one flat rope or the at least one belt ( 52 ; 210 ; 328 ; 722 ) is formed of a material with high traction and steel reinforcement.
  24. An elevator system according to claim 23, wherein it is at the material with high traction is urethane or rubber.
  25. Elevator system according to one of the preceding claims, wherein the at least one flat rope or the at least one belt ( 52 ; 210 ; 328 ; 722 ) a plurality of individual load-bearing strands ( 726 ) embedded in a common coating layer ( 728 ) are included.
  26. Elevator system according to claim 25, wherein the coating layer ( 728 ) the individual strands ( 726 ) and an engagement surface ( 730 ) for engaging a traction disc ( 724 ).
  27. Elevator system according to claim 25 or 19, wherein the coating layer ( 728 ) is formed of a polyurethane material.
  28. Elevator system according to claim 25, 26 or 27, wherein the strands ( 726 ) are formed of steel fibers with a diameter of less than 0.25 mm.
  29. Elevator system according to claim 25, 26 or 27, wherein the strands ( 726 ) are formed of steel fibers having a diameter in the range of 0.10 to 0.20 mm.
DE69933199.4T 1998-02-26 1999-02-19 Lift system with an actuator operated between the lift cabin and the bay wall Expired - Lifetime DE69933199C5 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US31108 1998-02-26
US09/031,108 US6401871B2 (en) 1998-02-26 1998-02-26 Tension member for an elevator
US163259 1998-09-29
US09/163,259 US7874404B1 (en) 1998-09-29 1998-09-29 Elevator system having drive motor located between elevator car and hoistway sidewall
US09/218,990 US6739433B1 (en) 1998-02-26 1998-12-22 Tension member for an elevator
US218990 1998-12-22
PCT/US1999/003645 WO1999043589A1 (en) 1998-02-26 1999-02-19 Elevator system having drive motor located between elevator car and hoistway sidewall

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DE69933199D1 DE69933199D1 (en) 2006-10-26
DE69933199T2 true DE69933199T2 (en) 2007-09-06
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DE29924747U Expired - Lifetime DE29924747U1 (en) 1998-02-26 1999-02-19 Elevator system with drive motor between elevator car and elevator shaft side wall
DE69933199.4T Expired - Lifetime DE69933199C5 (en) 1998-02-26 1999-02-19 Lift system with an actuator operated between the lift cabin and the bay wall

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JP (1) JP2002504469A (en)
CN (1) CN100347068C (en)
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WO (1) WO1999043589A1 (en)

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EP1056675B1 (en) 2006-09-13
BR9908303A (en) 2001-09-04
CN1298367A (en) 2001-06-06
DE69933199C5 (en) 2014-07-24
EP1056675A1 (en) 2000-12-06
CN100347068C (en) 2007-11-07
WO1999043589A1 (en) 1999-09-02
JP2002504469A (en) 2002-02-12
DE29924747U1 (en) 2005-06-09
DE69933199D1 (en) 2006-10-26
ES2272055T3 (en) 2007-04-16

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