EP2431321A1 - Drive system for movable platforms - Google Patents

Drive system for movable platforms Download PDF

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Publication number
EP2431321A1
EP2431321A1 EP11380072A EP11380072A EP2431321A1 EP 2431321 A1 EP2431321 A1 EP 2431321A1 EP 11380072 A EP11380072 A EP 11380072A EP 11380072 A EP11380072 A EP 11380072A EP 2431321 A1 EP2431321 A1 EP 2431321A1
Authority
EP
European Patent Office
Prior art keywords
platform
platforms
drive
return path
path
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.)
Granted
Application number
EP11380072A
Other languages
German (de)
French (fr)
Other versions
EP2431321B1 (en
Inventor
Miguel Angel Gonzalez Alemany
Enrique Gonzalez Fernandez
Pedro Ros Zuazua
Juan Domingo Gonzalez Pantiga
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.)
TK Elevator Innovation Center SA
Original Assignee
ThyssenKrupp Elevator Innovation Center SA
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
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Publication of EP2431321A1 publication Critical patent/EP2431321A1/en
Application granted granted Critical
Publication of EP2431321B1 publication Critical patent/EP2431321B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B21/00—Kinds or types of escalators or moving walkways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • B66B23/026—Driving gear with a drive or carrying sprocket wheel located at end portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/14—Guiding means for carrying surfaces
    • B66B23/147—End portions, i.e. means for changing the direction of the carrying surface

Definitions

  • the present invention relates to the drive system for movable platforms pertaining to a universal and accessible transport system for people/goods.
  • the present invention relates to a universal and accessible system for the transport of passengers/goods comprising a series of platforms, and more specifically to the drive subsystem in charge of the movement of the platforms.
  • the operating cycle of one of the platforms of the system must be studied, such cycle starting in the passenger loading position, an area in which the passengers have access to the platform located in the horizontal position.
  • the platform starts to run along the outbound path, which can be inclined, where the platform moves parallel to the floor for assuring the horizontality of the platform or car, and allowing a suitable comfort level for the passenger.
  • the platform reaches the unloading area, the platform is maintained in the horizontal position to allow the passengers to exit the platform comfortably.
  • the platform is moved horizontally to the higher elevation area, where a lifting system positions the platform for taking the return path.
  • the platform travels the return path with its floor in a position parallel to the inclined plane for reducing the height of the structure of the system in the central sector (sector central is understood as that comprised between the loading and unloading areas).
  • Said return path consists of an upper horizontal sector, an inclined sector and a lower horizontal sector.
  • the independent drive systems are synchronized with one other for allowing the transitions of the platforms in the different trajectories.
  • This synchronization must also allow a symmetrical movement of the platforms being moved in the inclined path for achieving a weight compensation and less power needed in the drive system formed by a roller chain, i.e., at the time when the platform in loading starts its inclined ascending movement, the post-unloading platform starts its inclined descending movement.
  • the first subsystem comprises linear motors as a drive element.
  • the second drive subsystem comprises mechanical transmission systems of roller chains.
  • the transition between the drive subsystems is performed by means of a guiding system on which rollers placed in the outer lower part of the platforms roll.
  • Said guiding system is continuous in the horizontal and inclined sectors and is discontinuous in lifting systems for allowing the trajectory change of the platform from the lower horizontal plane to the upper horizontal plane and vice versa, allowing an ascending/descending movement of the platform. Therefore the lifting systems have installed guides configured for allowing the transition of the platform from the horizontal areas to the lifting system itself.
  • This guide system is supported on fastenings which in turn are anchored to the bearing structure of the system, providing it the rigidity needed for supporting the stresses to which the guiding system is subjected.
  • the subsystem in charge of providing movement to the platform in the horizontal parts of the system comprises a linear motor or a group of linear motors located at the end of the elevator, which acts on a series of magnetic plates located in the lower part of the platform, closing the magnetic circuit of the linear motor.
  • These linear motors are configured so that the platforms:
  • the subsystem in charge of providing movement to the platform in the inclined sector comprises a variety of elements the main drive part of which is a roller chain rolling on a guide for controlling its position at all times.
  • a mechanical element or hook installed in each platform is connected to this roller chain for allowing the platform to be hooked and driven by the roller chain.
  • the roller chain is located on both sides of the platform for allowing a symmetrical pull and this roller chain is operated by means of two gear wheels operated by a gear-motor group.
  • the two gear wheels are supported on the structure by the outer part of the wheels for allowing the passage of the platform by the inner part of the gear wheels. These wheels are supported by the structure of the system by means of bearings that allow their rotation.
  • One aspect of the invention relates to a drive system for movable platforms as defined in the set of claims.
  • FIG 4A shows a plan view and 4B is a detailed view of figure 4A .
  • Figure 4C shows a detailed view of the upper part of the system. '
  • One embodiment of the invention relates to a drive system for movable platforms (2, 3) comprising:
  • the drive system for movable platforms comprises two drive chains (4), one on each side of the structure of the system for driving the platforms (2, 3) symmetrically without generating turning torque in the rollers (61', 62') of the platforms (2, 3).
  • the independent movement subsystems (4, 5, 10) are synchronized with each other for allowing transitions of the platforms (2, 3) in the different trajectories and a weight compensation between two platforms driven by the drive chain (4), one platform being in the transport path and one platform being in the return path.

Landscapes

  • Escalators And Moving Walkways (AREA)
  • Types And Forms Of Lifts (AREA)
  • Non-Mechanical Conveyors (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

The present invention relates to a drive system for movable platforms (2, 3) having a bearing structure (1), independent movement subsystems (4, 5, 10, 11) having a drive chain (4) for being guided between chain guides (7) along a trajectory, a lifting subsystem (5) in the loading area and a lifting subsystem (5') in the unloading area for moving movable platforms (2, 3), a plurality of linear motors (10) for horizontally moving the movable platforms (2, 3), platforms (2, 3) having horizontal movement devices having front rollers (61'), rear rollers (62'), drive devices having a plurality of connectors (8) and drive equipment (12, 13) for moving the drive chain (4) according to a reversible, point-to-point, discontinuous movement.

Description

    Field of the Invention
  • The present invention relates to the drive system for movable platforms pertaining to a universal and accessible transport system for people/goods.
    • Background of the Invention
  • Within the field of operation of universal transport systems for people/goods different proposals for the movement of the platforms or cars of these systems are seen. These systems are characterized by a movement of platforms in rectilinear, point-to-point trajectories, as in elevators and inclined elevators, or closed and coplanar trajectories as in carousel-type systems. The need of solving the platform movement in transport systems for people and/or goods having another type of trajectory and transitions if different directions (horizontal, inclined and vertical), as well as discontinuous movements of the platforms or cars is detected. The different drive methods existing do not satisfy the movement needs required for all platform movement possibilities. The present invention provides a solution to platform movement and control for transport systems for people and/or goods.
    • Description of the Invention
  • The present invention relates to a universal and accessible system for the transport of passengers/goods comprising a series of platforms, and more specifically to the drive subsystem in charge of the movement of the platforms.
  • For understanding the object of the invention, firstly, the operating cycle of one of the platforms of the system must be studied, such cycle starting in the passenger loading position, an area in which the passengers have access to the platform located in the horizontal position. Next, the platform starts to run along the outbound path, which can be inclined, where the platform moves parallel to the floor for assuring the horizontality of the platform or car, and allowing a suitable comfort level for the passenger. When the platform reaches the unloading area, the platform is maintained in the horizontal position to allow the passengers to exit the platform comfortably. Once the unloading of the passengers is done, the platform is moved horizontally to the higher elevation area, where a lifting system positions the platform for taking the return path. The platform travels the return path with its floor in a position parallel to the inclined plane for reducing the height of the structure of the system in the central sector (sector central is understood as that comprised between the loading and unloading areas).
  • Said return path consists of an upper horizontal sector, an inclined sector and a lower horizontal sector. After the platform reaches the lower area, the platform is moved to the lower elevation area where, by means of a lifting system, the platform is placed in the useful or outbound path and allows the loading of passengers. Another platform movement cycle would begin again.
  • The movement cycle previously described by the platforms is carried out by two independent drive systems, according to the trajectory taken by the platform:
    • A first drive subsystem is needed for achieving a first trajectory in horizontal planes, in the loading and unloading areas, both at the return path level and at the transport path level;
    • A second drive subsystem is needed for achieving a second trajectory in inclined sectors, both at the transport path level and at the return path level.
  • The independent drive systems are synchronized with one other for allowing the transitions of the platforms in the different trajectories. This synchronization must also allow a symmetrical movement of the platforms being moved in the inclined path for achieving a weight compensation and less power needed in the drive system formed by a roller chain, i.e., at the time when the platform in loading starts its inclined ascending movement, the post-unloading platform starts its inclined descending movement.
  • The first subsystem comprises linear motors as a drive element. The second drive subsystem comprises mechanical transmission systems of roller chains.
  • The transition between the drive subsystems is performed by means of a guiding system on which rollers placed in the outer lower part of the platforms roll. Said guiding system is continuous in the horizontal and inclined sectors and is discontinuous in lifting systems for allowing the trajectory change of the platform from the lower horizontal plane to the upper horizontal plane and vice versa, allowing an ascending/descending movement of the platform. Therefore the lifting systems have installed guides configured for allowing the transition of the platform from the horizontal areas to the lifting system itself. This guide system is supported on fastenings which in turn are anchored to the bearing structure of the system, providing it the rigidity needed for supporting the stresses to which the guiding system is subjected.
  • The subsystem in charge of providing movement to the platform in the horizontal parts of the system comprises a linear motor or a group of linear motors located at the end of the elevator, which acts on a series of magnetic plates located in the lower part of the platform, closing the magnetic circuit of the linear motor. These linear motors are configured so that the platforms:
    • are horizontally moved toward the elevators:
      • from the mechanical drive subsystem of the inclined sector coming from the return path in the loading area;
      • from the mechanical drive subsystem of the inclined sector coming from the useful or transport path in the unloading area;
    • are horizontally moved from the elevators:
      • to the mechanical drive subsystem of the inclined sector going to the transport path in the loading area;
      • to the mechanical drive subsystem of the inclined sector going to the return path in the unloading area.
  • The subsystem in charge of providing movement to the platform in the inclined sector comprises a variety of elements the main drive part of which is a roller chain rolling on a guide for controlling its position at all times. A mechanical element or hook installed in each platform is connected to this roller chain for allowing the platform to be hooked and driven by the roller chain. The roller chain is located on both sides of the platform for allowing a symmetrical pull and this roller chain is operated by means of two gear wheels operated by a gear-motor group. The two gear wheels are supported on the structure by the outer part of the wheels for allowing the passage of the platform by the inner part of the gear wheels. These wheels are supported by the structure of the system by means of bearings that allow their rotation.
  • One aspect of the invention relates to a drive system for movable platforms as defined in the set of claims.
    • Brief Description of the Drawings
  • A series of drawings which aid in better understanding the invention and its improvement which are expressly related to an embodiment of said invention presented as a non-limiting example of the latter is very briefly described below.
    • Figure 1 shows a side view of the entire system.
    • Figure 2 shows a perspective view of the central part of the system.
    • Figure 3A shows a detailed view of the lifting system of the lower part of the system and Figure 3B shows a detailed view of the horizontal movement of the lower part of the system.
  • The figure 4A shows a plan view and 4B is a detailed view of figure 4A. Figure 4C shows a detailed view of the upper part of the system. '
    • Description of Preferred Embodiments of the Invention
  • One embodiment of the invention relates to a drive system for movable platforms (2, 3) comprising:
    • 1a) a bearing structure (1):
      • 1a1) comprising a plurality of fixings configured for supporting a plurality of guides (7, 61, 62, 63) fastened by fastening means (9);
      independent movement subsystems (4, 5, 10, 11) comprising:
    • 1b) a drive chain (4) configured for being guided between chain guides (7) along a trajectory comprising:
      • 1b1) a transport path from a loading position (22) at the beginning of the transport path, to an unloading position.(23) at the end of the transport path;
      • 1b2) a return path from a post-unloading position (32) at the beginning of the return path, to a pre-loading position (33) at the end of the return path;
    • 1c) a lifting subsystem (5) in the loading area and a lifting subsystem (5') in the unloading area for moving movable platforms (2, 3):
      • 1c1) from an (34) at a return path level to an ascended position (21) at a transport path level;
      • 1c2) from a (24) at a transport path level to a (31) at a return path level;
      the lifting subsystems (5, 5') comprise a lifting motor (51), a lifting column (52), a lifting structure (53) and lifting guides (54) for moving the movable platforms (2, 3) between levels;
    • 1d) a plurality of linear motors (10) configured for horizontally moving the movable platforms (2, 3):
      • in the loading area:
        • 1d1) from a pre-loading position (33) to an (34) or position for entering the lifting subsystem (5);
        • 1d2) from an (21) or position for exiting from the lifting subsystem (5) to a loading position (22);
          in the unloading area:
        • 1d3) from an unloading position (23) to a (24) or position for entering the lifting subsystem (5);
        • 1d4) from a (31) or position for exiting from the lifting subsystem (5') to a post-unloading position (32);
    • 1e) a plurality of platforms (2, 3) comprising:
      • 1e1) horizontal movement means comprising a plurality of magnetic plates (11) below a floor of the platform;
        rolling means (61', 62') comprising:
      • 1e2) front rollers (61') configured for being guided by:
        • 1e2a) front platform guides (61) in the useful path;
        • 1e2b) return platform guides (63) in the return path;
      • 1e3) rear rollers (62') configured for being guided by:
        • 1e3a) rear platform guides (62) in the useful path;
        • 1e3b) return platform guides (63) in the return path;
      • 1e4) drive means comprising a plurality of connectors (8) configured for being moved between a connected position where the platform (2, 3) is driven by the drive chain (4), and a disconnected position where the platform (2, 3) is not driven by the drive chain(4);
    • 1f) drive equipment (12, 13) configured for moving the drive chain (4) according to a reversible, point-to-point, discontinuous movement;
      wherein:
    • 1g) the front platform guides (61) and the rear platform guides (62) are arranged for guiding the platforms (2, 3) in the horizontal position along the transport path.
  • Other features of the invention are included below:
    • 2a) The return platform guides (63) are arranged for guiding the platforms (2, 3) in a position parallel to the transport path along the return path from a post-unloading position at the beginning of the return path to a pre-loading position at the end of the return path for reducing pit depth.
  • 3. The drive system for movable platforms comprises two drive chains (4), one on each side of the structure of the system for driving the platforms (2, 3) symmetrically without generating turning torque in the rollers (61', 62') of the platforms (2, 3).
  • 4. The independent movement subsystems (4, 5, 10) are synchronized with each other for allowing transitions of the platforms (2, 3) in the different trajectories and a weight compensation between two platforms driven by the drive chain (4), one platform being in the transport path and one platform being in the return path.

Claims (4)

  1. A drive system for movable platforms, (2, 3) characterized in that it comprises:
    1a) a bearing structure (1):
    1a1) comprising a plurality of fixings configured for supporting a plurality of guides (7, 61, 62, 63);
    independent movement subsystems (4, 5, 10, 11) comprising:
    1b) a drive chain (4) configured for being guided between chain guides (7) along a trajectory comprising:
    1b1) a transport path from a loading position (22) at the beginning of the transport path, to an unloading position (23) at the end of the transport path;
    1b2) a return path from a post-unloading position (32) at the beginning of the return path, to a pre-loading position (33) at the end of the return path;
    1c) a lifting subsystem (5) in the loading area and a lifting subsystem (5') in the unloading area for moving movable platforms (2, 3):
    1c1) from an (34) at a return path level to an ascended position (21) at a transport path level;
    1c2) from a (24) at a transport path level to a (31) at a return path level;
    1d) a plurality of linear motors (10) configured for horizontally moving the movable platforms (2, 3):
    in the loading area:
    1d1) from a pre-loading position (33) to an (34);
    1d2) from an (21) to a loading position (22);
    in the unloading area:
    1d3) from an unloading position (23) to a (24);
    1d4) from a (31) to a post-unloading position (32);
    1e) a plurality of platforms (2, 3) comprising:
    1e1) horizontal movement means comprising a plurality of magnetic plates (11) below a floor of the platform;
    rolling means (61', 62') comprising:
    1e2) front rollers (61') configured for being guided by:
    1e2a) front platform guides (61) in the useful path;
    1e2b) return platform guides (63) in the return path;
    1e3) rear rollers (62') configured for being guided by:
    1e3a) rear platform guides (62) in the useful path;
    1e3b) return platform guides (63) in the return path;
    1e4) drive means comprising a plurality of connectors (8) configured for being moved between a connected position where the platform (2, 3) is driven by the drive chain (4), and a disconnected position where the platform (2, 3) is not driven by the drive chain(4);
    1f) drive equipment (12, 13) configured for moving the drive chain (4) according to a reversible, point-to-point, discontinuous movement;
    wherein:
    1g) the front platform guides (61) and the rear platform guides (62) are arranged for guiding the platforms (2, 3) in the horizontal position along the transport path.
  2. The drive system for movable platforms of claim 1, characterized in that:2a) the return platform guides (63) are arranged for guiding the platforms (2, 3) in a position parallel to the transport path along the return path from a post-unloading position at the beginning of the return path to a pte-loading position at the end of the return path for reducing pit depth.
  3. The drive system for movable platforms of any of claims 1-2, characterized in that it comprises two drive chains (4), one on each side of the structure of the system for driving the platforms (2, 3) symmetrically without generating turning torque in the rollers (61', 62') of the platforms (2, 3).
  4. The drive system for movable platforms of any of claims 1-3, characterized in that the independent movement subsystems (4, 5, 10) are synchronized with each other for allowing transitions of the platforms (2, 3) in the different trajectories and a weight compensation between two platforms driven by the drive chain (4), one platform being in the transport path and one platform being in the return path.
EP11380072.6A 2010-09-20 2011-09-19 Drive system for movable platforms Active EP2431321B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201031398A ES2353290B1 (en) 2010-09-20 2010-09-20 TRACTION SYSTEM FOR MOBILE PLATFORMS.

Publications (2)

Publication Number Publication Date
EP2431321A1 true EP2431321A1 (en) 2012-03-21
EP2431321B1 EP2431321B1 (en) 2016-11-16

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EP11380072.6A Active EP2431321B1 (en) 2010-09-20 2011-09-19 Drive system for movable platforms

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ES (2) ES2353290B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112236382A (en) * 2018-06-15 2021-01-15 通力股份公司 Control of an elevator system

Citations (2)

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Publication number Priority date Publication date Assignee Title
US3610160A (en) * 1969-08-18 1971-10-05 Mihai Alimanestianu Transport system
ES2333640A1 (en) * 2009-06-26 2010-02-24 Thyssenkrupp Elevator Innovation Center, S.A. Conveyor system for the transportation of passengers/goods

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
US4738346A (en) * 1985-10-29 1988-04-19 Mitsubishi Denki Kabushiki Kaisha Driving unit for passenger conveyor system
JPH04145919A (en) * 1990-10-04 1992-05-19 Kotaro Matsui Wound wire multiple rotating machine
TWI412888B (en) * 2006-08-18 2013-10-21 Sumitomo Chemical Co A salt suitable for an acid generator and a chemically amplified positive resist composition containing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610160A (en) * 1969-08-18 1971-10-05 Mihai Alimanestianu Transport system
ES2333640A1 (en) * 2009-06-26 2010-02-24 Thyssenkrupp Elevator Innovation Center, S.A. Conveyor system for the transportation of passengers/goods
EP2266912A1 (en) * 2009-06-26 2010-12-29 ThyssenKrupp Elevator Innovation Center S.A. Conveyor system for the transportation of passengers/goods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112236382A (en) * 2018-06-15 2021-01-15 通力股份公司 Control of an elevator system
CN112236382B (en) * 2018-06-15 2022-12-23 通力股份公司 Control of an elevator system

Also Published As

Publication number Publication date
ES2615603T3 (en) 2017-06-07
EP2431321B1 (en) 2016-11-16
ES2353290B1 (en) 2011-12-13
ES2353290A1 (en) 2011-03-01

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