• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device for detecting the instantaneous position of an object or component (7) which can be moved back and forth between two positions by means of an electromagnetic field, in particular the movable counter-disk of a toothed disk (5), a magnetically or electromagnetically actuated brake (1). or clutch, in particular in the door drive of a vehicle such as a railroad car. To protect the contact projections (12) of the switch (11) used in this case, it is provided that for the detection of the position of the movable member (7) a separate detector part (10) is provided, with respect to the movable member (7) in the direction can move from its mobility, that the detector part (10), as the movable member (7) under the action of the component (7) moving electromagnetic field is, and that the detector part (10) in one of the two positions by means of a Schaltfingerarms (12 ') at least one contact projection (12) of the switch (11) contacted and in the other distance from it.
    公开号:AT517317A1
    申请号:T50423/2015
    申请日:2015-05-27
    公开日:2016-12-15
    发明作者:Dr Mair Andreas
    申请人:Knorr-Bremse Ges Mit Beschränkter Haftung；
    IPC主号:
    专利说明:

    The invention relates to a device for detecting the instantaneous position of an object which can be moved back and forth between two positions by means of an electromagnetic field, in particular the toothed disk of a magnetically actuated brake or clutch, according to the preamble of claim 1 and EP 2 002 142.
    This document describes a so-called safety brake in which a coupling piece, in the case shown with a toothing, by means of electromagnetic forces between a position corresponding to the locked position, and a position corresponding to the released position, can be moved back and forth. There are also similar devices which have other fixation means instead of gearing and / or use springs or other instead of the electromagnetic forces in either direction.
    Such brakes are used variously, for example in door operators for railway doors, but also in lift doors, and can also be used in elevators, cables and any type of force or torque transmission. There are bistable arrangements in which it is ensured by permanent magnets or mechanical fixings that a once taken end position is met until the next switching pulse, and there are monostable versions in which the one end position is assumed as soon as the electromotive force is eliminated, it is desired be it in the course of a fault. Which of these brakes is used depends on the particular field of application and the safety philosophy of the user. For all these types of brakes, it is important to communicate the current (current) position of a control device to monitor that position and then control the operation of the entire brake related system thereafter. Such monitoring of the actual state, independent of the switching commands of the past, is essential both for the sequence of the various operating steps to be performed and for the safety, and it must therefore be ensured that this detection takes place reliably and without interference.
    In the prior art, this has been achieved in that the movable part of the brake has been fixedly provided with an arm or the like, possibly also in one piece, and that at the end of the arm, which thus inevitably moves with the movable part, contacts, actuating means (pins or the like) are provided, which contacted a correspondingly opposite fixedly mounted switch, plug or the like and so closed or opened a circuit or, which was variously desirable for control engineering reasons, served several such switching elements, although quite some could be opened and others could be closed , depending on their position and effect in one of the control or control circuits.
    This concept, which has the great advantage of being directly connected to the moving part and thus directly reflecting its position, has the disadvantage that the movement of the moving part is dictated by its function of engagement or release, and thus to mechanical, dynamic , electrical or other sensitivities and limits of the sensor part can not take into account. In particular, although not exclusively, the speed of movement of the moving component is well above the permissible for the used and usable switch relays switching speeds. The consequence is the need to provide levers and the like which reduce the speed (s) of the moving component, but which in turn proportionally reduces the distances traveled by the contactors and, in turn, makes more sensitive or more sensitive switches, etc. necessary. Moreover, the moving parts of the immediacy that is sought are contradictory and costly.
    There is thus a need for a simple, compact, reliable and as far as possible to be adapted to the switch to be used monitoring device, by which it should also be possible to use different sensors without complex changes and adjustments, to pursue different strategies to consider different mounting options , because there are different wishes, depending on the customer.
    It is the object of the invention to provide such a device.
    According to the invention, this object is achieved by the features stated in the characterizing part of claim 1; in other words, it is provided for detecting the position of the movable member, a separate detector plate which can move with respect to the movable coupling part in the direction of its mobility. In this case, the detector part, as well as the coupling part, under the action of the coupling part moving electromagnetic field, and it is optionally provided between the coupling part and the detector part, a compression spring.
    In this simple way it is ensured that by the mass and the structure of the detector plate, the effect of the electromagnetic force on them, ie their acceleration with additional consideration of the mass and the final speed on the available path, can be determined, the compression spring or Compression springs are provided between the two movable plates in accordance with the forces and the paths to be covered and whose characteristics are determined.
    The invention is explained in more detail below with reference to an embodiment. 1 shows a purely schematic section through a device according to the invention in the coupled state and FIGS. 2 and 3 in the uncoupled state:
    Fine chosen as an example brake 1 is attached with a wing 2 or 3einem other mounting part fitting on the carbody or door frame, not shown, and carries in its interior a shaft 3 which is rotatable about an axis 4. The shaft 3 is rotatably and axially fixed to a ring gear 5 (Fig. 2) connected and has at its other end a connection with a freewheel 6, which in turn sits on an actuating shaft, not shown.
    This device is used, for example, in the operation of railway doors to a rotation of the actuating shaft in the direction in which the freewheel allows it (usually the closing direction of the door) always allow a rotation in the opening direction but to prevent. Now, if a rotation in this direction, which does not allow the freewheel 6, is desired, the brake 1, that is in detail the toothed disc 5, released, and the actuating shaft can then including freewheel and shaft 3 and toothed disc 5 in the other Turn direction.
    To effect this release, a counter-disc 7 is rotatably disposed in the brake 1, but in the direction of the axis 4, is movable between two positions. Fig. 1 shows the closed or blocking position in which a ring gear of the movable disc 7 meshes with the teeth of the toothed disc 5 and therefore prevents them from any rotation. Fig. 2 and Fig. 3 show the situation in the released state in which the disc 7 has been pulled by electromagnetic forces of a magnet 8 so far to the right in the figures that the toothings of the two tooth combs are disengaged, the toothed disc 5 and thus the shaft 3 can rotate freely. When switching off the magnet 8, the movable disk 7 is urged by springs 9 again in the blocking position. Here, the introductory applies that instead of this monostable training by providing permanent magnets or the like, a bistable design is possible; However, this has nothing to do with the invention described below with reference to this example.
    In order to be able to report the current position of the movable disk 7 to a corresponding control device or control device (not shown), a detector disk 10 is provided which, like the movable disk 7, is mounted non-rotatably with respect to the brake 1, but in the direction of the axis 4 is mobile. This detector disc 10 is now attracted by the magnet 8 as well as the movable disc 7, but has such a magnetic property and such a mass that in the case of activation of the magnet 8 and the movement of the movable disc 7 their own movement only one speed which is low enough to not stress the actual switch (hereinafter referred to as whatever it is constructed) 11 in contact with its contact projection (s) 12 beyond its (their) stability. This situation is shown in FIG.
    The switching process of the magnet can also be made plausible by means of current measurement. The switching process is defined by a characteristic current profile.
    When the electromagnet 8 is switched off, the compression springs 9 again press the movable plate 7 into the locked position (FIG. 1), and the intermediate springs 13 or suitably arranged permanent magnets or another repulsion element push the detector disk 10 together with its switching finger arm 12 'away from the switch 11. which forwards this movement or reaching the end of this movement to the control device.
    These elements 13 are to be dimensioned in their characteristic curve and in their maximum extent such that, in the event of a fault, for example if, despite the switching off of the magnet 8, the movable disk 7 does not reach the locked position (FIG. is not pushed away from the switch 11, then erroneously reports the locked state.
    Conversely, in spite of switching on the magnet 8, the movable disk 7 does not disengage, as a result of the resilient elements 13, the contact 12 does not reach the area of the switch 11, whereupon it still reports that the locked position still exists.
    The invention can be designed in many ways and adapted to the respective field of application. Knowing the invention, it is clear to those skilled in the control of control technology in the field of electromagnetically operated devices to select the appropriate parameters, in particular he has the spring elements 13, the mass of the detector disk 10, the distance to the magnet 8, the magnetic properties the detector disk 10 and this in each vote with mass and magnetic properties of the movable disk 7 and the strength of the return spring 9 make.
    Finally, it can be stated that the invention relates to a device for detecting the instantaneous position of an object or component 7 which can be moved back and forth between two positions by means of an electromagnetic field, in particular the movable counter disk of a toothed disk 5, a magnetically or electromagnetically operable brake 1 or Coupling, in particular in the door drive of a vehicle such as a railway car concerns. To protect the contact projections 12 of the switch 11 used in this case, a separate detector part 10 is provided for detecting the position of the movable member 7, which can move with respect to the movable member 7 in the direction of its mobility, that the detector part 10, as the movable component 7, is under the action of the component 7 moving electromagnetic field, and that the detector part 10 in one of the two positions by means of a Schaltfingerarms 12 'at least one contact projection 12 of the switch 11 contacted and in the other distance from it.
    List of numbers: 01 Brake 08 Electromagnet 02 Wing 09 Springs 03 Shaft 10 Detector disk 04 Axle 11 Switch 05 Sprocket, toothed pulley 12 Contact projection 06 Free wheel 12 'Shift finger arm 07 Counter disc, movable 13 springy elements
    disc
    权利要求:
    Claims (4)
    [1]
    claims:
    1. A device for detecting the instantaneous position of an object movable by means of an electromagnetic field between two positions or component (7), in particular the movable counter-disc of a toothed disc (5), a magnetically or electromagnetically actuated brake (1) or Clutch, in particular in the door drive of a vehicle such as a railroad car, characterized in that for the detection of the position of the movable member (7) a separate detector part (10) is provided with respect to the movable member (7) in the direction of its mobility that the detector part (10), like the movable component (7), is under the action of the electromagnetic field moving the component (7), and that the detector part (10) is moved in one of the two positions by means of a shift finger arm (12 ') contacted at least one contact projection (12) of a switch and in the other distance from it.
    [2]
    2. Apparatus according to claim 1, characterized in that between the movable member (7) and the detector part (10) is provided a pressure element which comprises at least one compression spring (13).
    [3]
    3. A device according to claim 1, characterized in that between the movable member (7) and the detector part (10) is provided a pressure element which comprises at least one permanent magnet.
    [4]
    4. Device according to one of claims 1 to 3, characterized in that the movable member (7) occupies the contacting position when applied electromagnetic field.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE19929435C2|2002-05-23|Device for detecting the position of a movable member in a closure that can be used in vehicles
    AT517317B1|2017-06-15|position detector
    DE202007018456U1|2008-07-24|Magnetic switching device
    DE102013215201A1|2015-02-05|Turn signal switch and method for resetting a turn signal switch
    AT397291B|1994-03-25|SWITCHING CLUTCH FOR A VISCOSE CLUTCH
    WO2003036119A1|2003-05-01|Electromagnetic friction clutch for a vehicle door
    DE102016115439A1|2018-02-22|Motor vehicle lock arrangement
    DE19910048A1|2000-05-04|Method and device for monitoring the movement of an actuator
    DE102018213275A1|2020-02-13|Coupling assembly for a motor vehicle drive train and motor vehicle drive train
    DE102013215202A1|2015-02-05|Turn signal switch and method for resetting a turn signal switch
    EP2712996A2|2014-04-02|Motion device for a mobile element of a furniture
    DE2024661C3|1979-11-08|Device for displaying the handbrake actuation position and lining wear in a friction brake, in particular for motor vehicles
    DE102005005450A1|2006-08-10|Switchgear cabinet lock, has locking unit with electrically controlled pin that is moved in and out of recess by lift magnets that are operated by access control system, to which pin is connected, when authorized transponder is near handle
    DE102016011074A1|2018-03-15|Door lock for a vehicle door and corresponding vehicle
    DE202010016154U1|2012-02-29|Moving device for a movable furniture part
    DE102017209889B4|2018-12-27|Switching arrangement and method for determining the switching position of an electromagnetically actuated switching element with a plurality of switching positions
    EP2471084A1|2012-07-04|Attachment module for detection of a switching state of an electromagnetic switching device
    DE899665C|1953-12-14|Safety brake of a rail vehicle, especially for rack railways
    DE102010013058B4|2013-11-28|Overload clutch
    DE202004000913U1|2004-04-01|Safety switch and contact for doors of lifts, railway carriages, airplanes, or machine covers signaling meeting of two objects and finishing their locking
    AT147527B|1936-11-10|Rail contact devices for level crossings and the like like
    AT240410B|1965-05-25|Copier for the control and monitoring of conveyor systems, in particular cable cars
    DE468511C|1928-11-14|Train protection system
    DE202010016153U1|2012-02-29|Moving device for a movable furniture part
    DE538206C|1931-11-11|Signaling device, especially for unguarded railroad crossings
    同族专利:
    公开号 | 公开日
    AT517317B1|2017-06-15|
    US20180156635A1|2018-06-07|
    MA50130A|2020-07-29|
    CN107646080A|2018-01-30|
    EP3303868A1|2018-04-11|
    WO2016187631A1|2016-12-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2949989A|1957-11-25|1960-08-23|Lindstrom Ture|Electro-mechanical brake device and control circuit|
    US3400797A|1966-07-05|1968-09-10|Bendix Corp|Electromagnetic clutch or brake with dual coils|
    JPH0361059B2|1985-03-14|1991-09-18|Mitsubishi Electric Corp|
    DE9111784U1|1990-10-04|1992-01-02|Baumueller Nuernberg Gmbh, 8500 Nuernberg, De|
    US5202539A|1991-08-28|1993-04-13|Inventio Ag|Emergency brake apparatus for an elevator|
    US5717174A|1996-05-08|1998-02-10|Inventio Ag|Elevator brake drop silencing apparatus and method|
    DE19922251A1|1999-05-14|2000-11-16|Mayr Christian Gmbh & Co Kg|Optical sensor for determination of the position of the anchor plate of an electromagnetically activated compression spring brake, where an applied current ensures the brake is off, with a reflector used to indicate brake position|
    DE202005009053U1|2005-06-09|2005-08-25|Intorq Gmbh & Co. Kg|Device for control of condition of electro-magnetically operated brake unit, comprising dipping armature as sensor element|
    DE102006004065A1|2006-01-28|2007-08-02|Jungheinrich Ag|Spring storage brake for fork lift truck has proximity switch and initiator for monitoring operational position of brake|
    DE102006016611A1|2006-04-06|2007-10-18|Ortlinghaus Gmbh Gams|safety brake|
    JP2012237397A|2011-05-12|2012-12-06|Yaskawa Electric Corp|Brake control device, motor control device, and automatic machine|
    WO2016135826A1|2015-02-23|2016-09-01|Ｇｋｎ ドライブライン ジャパン株式会社|Differential gear|AT515888A3|2014-05-22|2019-01-15|Knorr Bremse Gmbh|Electronic circuit for safely closing a motor-driven door of a rail vehicle|
    DE102015218411B3|2015-09-24|2017-02-02|Siemens Aktiengesellschaft|Positioning method for a parking brake|
    DE102018120116B3|2018-08-17|2019-12-12|Knorr-Bremse Gesellschaft Mit Beschränkter Haftung|Tooth holding brake for a door for a vehicle and method for operating a tooth holding brake|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50423/2015A|AT517317B1|2015-05-27|2015-05-27|position detector|ATA50423/2015A| AT517317B1|2015-05-27|2015-05-27|position detector|
    PCT/AT2016/050151| WO2016187631A1|2015-05-27|2016-05-20|Position detector|
    US15/576,483| US20180156635A1|2015-05-27|2016-05-20|Position detector|
    EP16728593.1A| EP3303868A1|2015-05-27|2016-05-20|Position detector|
    MA050130A| MA50130A|2015-05-27|2016-05-20|POSITION DETECTOR|
    CN201680030489.4A| CN107646080A|2015-05-27|2016-05-20|Position sensor|
    [返回顶部]