EP2857340A1 - Procédé et dispositif de contrôle du mouvement d'une cabine d'ascenseur et ascenseur doté d'un tel dispositif - Google Patents

Procédé et dispositif de contrôle du mouvement d'une cabine d'ascenseur et ascenseur doté d'un tel dispositif Download PDF

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Publication number
EP2857340A1
EP2857340A1 EP13187572.6A EP13187572A EP2857340A1 EP 2857340 A1 EP2857340 A1 EP 2857340A1 EP 13187572 A EP13187572 A EP 13187572A EP 2857340 A1 EP2857340 A1 EP 2857340A1
Authority
EP
European Patent Office
Prior art keywords
elevator
maintenance
locking device
maintenance mode
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.)
Withdrawn
Application number
EP13187572.6A
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German (de)
English (en)
Inventor
Hans Kocher
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.)
Inventio AG
Original Assignee
Inventio AG
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
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP13187572.6A priority Critical patent/EP2857340A1/fr
Publication of EP2857340A1 publication Critical patent/EP2857340A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel
    • B66B5/0056—Safety of maintenance personnel by preventing crushing

Definitions

  • the present invention relates to a method for controlling the movement of an elevator car located in an elevator, a device for carrying out the method and a lift with such a device, according to the features of the preambles of the independent claims.
  • EP 1 604 934 A1 An apparatus and a method for performing maintenance in lift shafts, for example, is off EP 1 604 934 A1 known.
  • the EP 1 604 934 discloses one of the elevator car associated, activatable via a Bowden locking cam, with the aid of the elevator car can be blocked directly.
  • the extended locking cam encounters buffers attached to the guide rails and positioned near the pit head, thereby ensuring that people on the canopy are prevented from moving the car into a security room.
  • the device is also characterized by a relatively complicated structure.
  • additional monitoring switches are necessary to control the function. In the event of a collision with too high a car speed, eg if the brake is at low position Cabin fails, the buffers can no longer fulfill the security function.
  • an upward movement of the elevator car in a maintenance mode with a locking device is prevented during maintenance work.
  • This upward movement is prevented at least over a partial length of the elevator shaft, preferably over the entire length, regardless of the position of the elevator car in the elevator shaft.
  • the locking device has at least one clamping element connected to the elevator car. This clamping element is brought in the maintenance mode in operative connection with a stationary in relation to the elevator shaft guide rail.
  • the locking device preferably acts only with respect to the upward movement of the elevator car. A downward movement of the elevator car is made possible, and in particular not prevented.
  • the device may have a one-way freewheel.
  • a freewheel is usually a machine element that allows a one-sided movement.
  • the movement in this direction is preferably made possible by mechanical elements or stops or self-locking machine elements.
  • a freewheel of the type mentioned allows essentially independent of the position of the cabin blocking and / or braking action.
  • the elevator In the maintenance mode, the elevator can thus be moved on one side in the downward direction, which allows maintenance work on sections of the elevator shaft. Since such an elevator in the maintenance mode does not allow upward movement and consequently no upward acceleration, the conventional speed monitors are for determining whether the elevator car is being accelerated to an impermissible speed to ensure that the final buffers in the bay are out of the maximum Can not stop impact speed.
  • the upward movement over substantially the entire length of the elevator shaft can be prevented.
  • Such a method is advantageous because in the elevator shaft, regardless of the position of the elevator, an upper maintenance room can be created.
  • the maintenance room can no longer scale down from the cabin position when switching to the maintenance mode. There is no risk of trapping objects or people between the elevator car ceiling and the elevator shaft ceiling.
  • a maintenance worker can now reach the maintenance room, for example, through a roof of the elevator car.
  • the maintenance room via elevator doors, for example, an upper Floor to be entered.
  • the blocking device is preferably set to a maintenance position at the beginning of the maintenance work. The locking device thus assumes an active position.
  • this step is performed before the maintenance worker enters the room, it is ensured that the elevator shaft and / or the maintenance room can be entered safely.
  • the maintenance mode is preferably activated by interrupting a power supply for an elevator control or a safety control. This is done in particular by switching a maintenance switch or by opening a maintenance hatch or by occupying a monitoring switch.
  • the said steps can be combined.
  • a maintenance switch can be attached to a maintenance hatch, which is activated when opening the hatch.
  • the locking device to an electric actuator, which is kept inactive in the maintenance mode and is therefore de-energized in maintenance mode.
  • the actuator is a solenoid in ab headingender execution. This ensures that, for example, even in the event of a power failure, a mechanical actuation of the elevator car, in particular an upward movement, is prevented.
  • a spring-operated actuator could be used.
  • a pneumatic cylinder or a hydraulic cylinder would also be conceivable.
  • the method is preferably carried out such that in the maintenance mode, the elevator car is stopped step by step in a downward movement. Maintenance can be performed while the car is stopped.
  • the elevator can be stopped in maintenance mode in its uppermost position. All elements in the elevator shaft are thus accessible without further aids, whereby it is always ensured that the upward movement of the car is prevented. A simple and quick maintenance is made possible.
  • Another aspect of the invention relates to a device for controlling the movement of an elevator car located in an elevator shaft during maintenance work.
  • the device has a locking device, which can be brought in a maintenance mode in a maintenance position. If the elevator is in maintenance mode, then the locking device is in the maintenance position and an upward movement of the elevator car over at least a partial length, preferably over the entire length of the elevator shaft, is prevented by the barrier device regardless of the position of the elevator cage in the elevator shaft.
  • the locking device has at least one clamping element connected to the elevator car. This clamping element is in the maintenance mode in operative connection with a stationary in relation to the elevator shaft guide rail.
  • the locking device preferably acts only in the upward movement of the elevator car. A downward movement of the elevator car is enabled or not prevented.
  • the device may have a one-way freewheel.
  • a freewheel is usually a machine element that allows a one-sided movement.
  • the movement in this direction is preferably made possible by mechanical elements or stops or self-locking machine elements.
  • a freewheel of the type mentioned essentially allows independent of the position of the freewheel blocking and / or braking action.
  • the upward movement over substantially the entire length of the elevator shaft can be prevented.
  • the elevator has, for example, in its lowest possible position, a section in which the locking device does not prevent an upward movement, for example, for its own maintenance or its installation or removal.
  • a section may, for example, in the direction of movement of the elevator have substantially the same dimensions as the locking device.
  • a self-blockade of the elevator between locking device and lower stop buffers can be prevented. Because in a lower portion of the elevator shaft, the risk of trapping between the elevator car and the ceiling of the elevator shaft is low, can also be provided that the locking device is not effective in such an area.
  • the elevator can be moved by folding away lower stop buffers in an additional, lower-lying position to bring the elevator in a position in which maintenance can be performed on the locking device.
  • Such a device makes it possible to carry out maintenance work in any position of the elevator without the risk of the cabin intentionally or unintentionally moving upwards.
  • the clamping element is guided on a guide rail, in particular to a braking surface of the guide rail, inclined guide.
  • the guide is designed such that an operating force is transformed into a transverse braking force.
  • the clamping element may have counter-means which are in operative connection with the inclined guide.
  • the antidote may for example be designed as bolts that slide on the guide.
  • the bolts have additional means to allow rolling on the inclined guide, such as rolling or sliding bearings.
  • a complementary surface to the inclined guide is also conceivable.
  • the operating force may be the force caused, for example, by the counterweight and / or a drive.
  • the power of the drive and the counterweight and, for example, the regular full load or the calculated overload of the elevator drive is included as an operating force in the calculation of the design of the clamping element.
  • the clamping element is preferably brought by its own weight on the inclined guide in operative connection to the guide rail. With such an arrangement, a unilateral freewheel is possible.
  • the device can be brought into the maintenance mode by interrupting a power supply and thereby into a maintenance position.
  • the interruption of the power supply is made possible in particular by switching a maintenance switch or by opening a maintenance hatch or by occupying a monitoring switch.
  • the aforementioned possibilities can be combined. It is conceivable, for example, that a maintenance switch is activated by opening a maintenance hatch and thus interrupts the power supply.
  • a maintenance switch or contact can direct another signal to an elevator control and, for example, put a warning light into operation or control other functions, such as the deactivation of call buttons on elevator doors.
  • the device comprises an actuator, which is in operative connection with the clamping element and is de-energized in the maintenance mode and is energized in the operating mode.
  • the locking device is kept inactive in the operating mode.
  • the device can be brought into an operating mode, wherein in particular the clamping element is durable in an operating position.
  • the clamping element is movable via an actuating lever and can be brought into the operating position.
  • the clamping element is durable in the operating mode on the operating lever in an operating position.
  • the clamping element is in maintenance mode.
  • an upward movement of the cabin is reliably prevented even in the event of a malfunction, for example in case of failure of the actuator.
  • a fault or the maintenance mode can be provided to attach to the clamping element or the operating lever limit switch.
  • a combination of a plurality of switches is conceivable, in particular if a plurality of clamping elements are provided.
  • the actuating lever can be brought via the energized actuator in the operating position.
  • the actuator is preferably in operative connection with the clamping element via the actuating lever, wherein the actuating lever can be designed as a rocker.
  • the actuating lever may be arranged substantially symmetrically to the guide rail, wherein it is in operative connection with two clamping elements. This allows the control of several clamping elements with only one actuator.
  • Another aspect of the invention relates to a lift having a maintenance mode for performing maintenance.
  • the maintenance work is carried out in particular in a gradual downward journey.
  • the elevator comprises at least one car and one elevator shaft and in particular has a device for controlling the movement of the elevator car as described herein.
  • An elevator with such a device enables a complete system which provides safe operation, easy maintenance and high security.
  • the elevator shaft has a guide rail, which is fixed with respect to the elevator shaft and which in the maintenance mode is in operative connection with the locking device.
  • the guide to the guide rail in the upward direction of movement of the elevator on an inclination at an angle between 0.1 ° and 5 °.
  • FIG. 1 shows an elevator 10 in an operating mode.
  • the elevator 10 has a cable 11, on which a counterweight 15 is attached.
  • On the other side of the counterweight 15 is an elevator car 13.
  • a passenger 12 is shown. All the aforementioned components are located in an elevator shaft 14.
  • the elevator shaft 14 is connected to doors 16, for example, to individual floors.
  • a locking device 100 according to the invention is shown below the elevator car 13, a locking device 100 according to the invention is shown.
  • the elevator 10 is in the operating mode, the blocking device 100 is inactive. The possible up and down movement is indicated by an arrow.
  • FIG. 2 shows an inventive elevator 10 in maintenance mode. Identical parts are designated by the same reference numerals.
  • the FIG. 2 shows a maintenance worker 17 above the elevator car 13.
  • the locking device 100 below the car 13 is in a maintenance mode and therefore active. An upward movement of the cabin 13 is prevented. This is indicated by the dashed arrow. Above the cabin 13, where the maintenance worker 17 is shown, there is a maintenance room 1.
  • the maintenance room 1 is independent of the position of the cab 13 adjustable. Once the elevator 13 is in maintenance mode, the entire space above the elevator car 13 can be used as a maintenance room 1. Once the elevator 10 is in maintenance mode, an upward movement of the car 13 is no longer possible. By a downward movement of the car 13, the maintenance room 1 can only be increased. A reduction in the height of the maintenance room 1 is not possible.
  • the maintenance worker 17 can receive access to the maintenance room 1 through a door 16 or through a maintenance hatch, not shown here, for example in the ceiling of the cabin 13.
  • FIG. 3 shows a locking device 100 according to the invention.
  • the locking device 100 has an actuator 120 which is mounted on a support 121.
  • the actuator 120 is a lifting magnet in abdovender execution and connected to an actuating lever 122.
  • the actuating lever 122 is mounted on a pivot axis 123 which is connected via brackets 124 to the support 121.
  • the pivot axis 123 and the actuator 120 opposite a brake housing 110 is arranged.
  • the brake housing 110 is presently U-shaped. Housing plates are arranged on the front side, brake housing 110 and housing plates forming a C profile. However, it is conceivable that the brake housing 110 and the housing plates are manufactured in one piece.
  • the brake housing 110 there are two brake pads as clamping elements 111, which are mounted on guide pins 112 in a guide 113.
  • the guide 113 is arranged in the end-side housing plates.
  • the guide pins 112 are smaller in diameter than the width of the guide 113. They have an additional sleeve whose outer diameter corresponds substantially to the width of the guide 113.
  • the guide pins 112 may be designed so that they extend on both sides of the Klemmelemnte 111 and additionally may be mounted in a second guide on a side opposite the housing plates in the brake housing 110.
  • the guide 113 in the housing plate and the second guide in the brake housing 110 are preferably arranged in alignment.
  • the brake housing 110 is fixed to the support 121. Between the brake housing 110 and support 121 are screws 114 to make a correspondingly accurate adjustment of the brake housing 110 can.
  • the locking device 100 is in FIG. 3 shown in an operating mode.
  • the clamping members 111 are lifted by the operating lever 122. Between the clamping elements 111 is a guide rail 105. On both sides of the guide rail 105 braking surfaces 115 are provided. In the present case, the braking surfaces 115 additionally act as guide surfaces for the elevator.
  • the guide rail 105 is fixed in the elevator shaft (not shown here).
  • FIG. 4 shows a plan view of the locking device 100 from FIG. 3 , Shown here is a substantially symmetrical structure of the device 100.
  • clamping elements 111 are arranged on both sides of the guide rail 105 .
  • the clamping elements 111 are located in a free space between the housing plates and the brake housing 110.
  • the clamping elements 111 have short distances relative to the surrounding components in order to minimize twisting of the device 100.
  • the actuator is connected via the actuating lever 122 with the clamping elements 111.
  • a lever axis 126 On the clamping elements 111 is a lever axis 126, in which the actuating lever 122 engages.
  • the lever axis 126 is fixed to the clamping elements 111, wherein the brake housing 110, for example, has slot-shaped openings through which the clamping elements 111 are durable.
  • a structure of brake housing 110 and only one clamping elements 111 is also conceivable.
  • FIG. 5a shows a schematic representation of the locking device 100 in the operating mode in an operating position.
  • the actuator 120 is energized and subsequently in an active position.
  • the Anchor of the actuator 120 is extended and presses the actuating lever 122 down, wherein the actuating lever 122 via pivot axis 123 performs a pivoting movement. Due to the bearing on the pivot axis 123, the opposite part of the actuating lever 122 moves upward.
  • the actuating lever 122 has at one end an opening with which the lever axis 126 is in operative connection. It is also conceivable, for example, to place in line with the armature of the actuator 120 a resilient element which acts counter to the armature of the actuator 120. This pushes the armature of the actuator 120 from its active position to an inactive position and brings the locking device 100 into a maintenance position (see FIG FIG. 5b ).
  • FIG. 5b shows a schematic representation of the locking device 100 during the maintenance mode of the elevator in the maintenance position.
  • the actuator is in a de-energized state.
  • the armature of the actuator 120 is retracted, the operating lever 122 is pivoted downward.
  • a spring not shown here in line with the actuator 120, in addition, the pivoting movement of the actuating lever 122 can be supported.
  • FIG. 6a shows one to FIG. 5a Corresponding frontal view of the locking device 100.
  • brake pads are arranged as clamping elements 111. You are in an upper position in the drawing, which is the operating position.
  • the clamping elements 111 have guide pins 112 which are located in a guide 113.
  • the guide 113 is slot-shaped and has an inclination of approximately 4 ° with respect to the guide rail 105. Between guide rail 105 and clamping element 111, a free space can be seen. The free space allows the operation of the elevator without restrictions.
  • FIG. 6b shows one too FIG. 5b corresponding frontal view of the locking device 100 in the maintenance position.
  • the guide pins 112 of the clamping elements 111 are located in a lower position in the drawings in the guides 113. Between guide rail 105 and clamping element 111, no distance is visible. The clamping elements 111 and the guide rail 105 are in operative connection. A now occurring upward movement of the locking device 100 causes the clamping elements 111 are pressed by the guide 113 to the guide rail 105. The higher the force that underlies the upward movement, the higher the contact pressure. The device is therefore self-locking.

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP13187572.6A 2013-10-07 2013-10-07 Procédé et dispositif de contrôle du mouvement d'une cabine d'ascenseur et ascenseur doté d'un tel dispositif Withdrawn EP2857340A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13187572.6A EP2857340A1 (fr) 2013-10-07 2013-10-07 Procédé et dispositif de contrôle du mouvement d'une cabine d'ascenseur et ascenseur doté d'un tel dispositif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13187572.6A EP2857340A1 (fr) 2013-10-07 2013-10-07 Procédé et dispositif de contrôle du mouvement d'une cabine d'ascenseur et ascenseur doté d'un tel dispositif

Publications (1)

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EP2857340A1 true EP2857340A1 (fr) 2015-04-08

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EP13187572.6A Withdrawn EP2857340A1 (fr) 2013-10-07 2013-10-07 Procédé et dispositif de contrôle du mouvement d'une cabine d'ascenseur et ascenseur doté d'un tel dispositif

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EP (1) EP2857340A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113003345A (zh) * 2021-03-22 2021-06-22 杭州西奥电梯有限公司 电梯系统及电梯系统的控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1604934A1 (fr) 2004-05-10 2005-12-14 Inventio Ag Espace de sécurité temporaire pour ascenseur
JP2009067492A (ja) * 2007-09-11 2009-04-02 Mitsubishi Electric Building Techno Service Co Ltd エレベータのかご保持装置
JP2009067494A (ja) * 2007-09-11 2009-04-02 Mitsubishi Electric Building Techno Service Co Ltd エレベータのかご保持装置
JP2009067493A (ja) * 2007-09-11 2009-04-02 Mitsubishi Electric Building Techno Service Co Ltd エレベータのかご保持装置
JP2011251793A (ja) * 2010-06-01 2011-12-15 Hitachi Ltd 非常止め装置を備えた昇降装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1604934A1 (fr) 2004-05-10 2005-12-14 Inventio Ag Espace de sécurité temporaire pour ascenseur
JP2009067492A (ja) * 2007-09-11 2009-04-02 Mitsubishi Electric Building Techno Service Co Ltd エレベータのかご保持装置
JP2009067494A (ja) * 2007-09-11 2009-04-02 Mitsubishi Electric Building Techno Service Co Ltd エレベータのかご保持装置
JP2009067493A (ja) * 2007-09-11 2009-04-02 Mitsubishi Electric Building Techno Service Co Ltd エレベータのかご保持装置
JP2011251793A (ja) * 2010-06-01 2011-12-15 Hitachi Ltd 非常止め装置を備えた昇降装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113003345A (zh) * 2021-03-22 2021-06-22 杭州西奥电梯有限公司 电梯系统及电梯系统的控制方法

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