EP0520166B1 - Schaltungsanordnung für die Notfallöffnung von fremdkraftbetätigten Türen - Google Patents

Schaltungsanordnung für die Notfallöffnung von fremdkraftbetätigten Türen Download PDF

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Publication number
EP0520166B1
EP0520166B1 EP92107725A EP92107725A EP0520166B1 EP 0520166 B1 EP0520166 B1 EP 0520166B1 EP 92107725 A EP92107725 A EP 92107725A EP 92107725 A EP92107725 A EP 92107725A EP 0520166 B1 EP0520166 B1 EP 0520166B1
Authority
EP
European Patent Office
Prior art keywords
door
valve
drive
emergency
circuit arrangement
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
EP92107725A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0520166A1 (de
Inventor
Jochen Diesing
Wolfgang Wagner
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.)
Mercedes Benz Group AG
Original Assignee
Daimler Benz AG
Mercedes Benz 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 Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Publication of EP0520166A1 publication Critical patent/EP0520166A1/de
Application granted granted Critical
Publication of EP0520166B1 publication Critical patent/EP0520166B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/506—Application of doors, windows, wings or fittings thereof for vehicles for buses
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/531—Doors

Definitions

  • the invention relates to a circuit arrangement for the emergency opening of power-operated vehicle doors with the features of the preamble of claim 1.
  • An arrangement with these features is known (DE 35 36 648 C2) in the form of a sensor-controlled automatic door opening device, in particular for buses. This includes at least one sensor which responds to abnormal driving or vehicle conditions and which emits a switching pulse to a solenoid valve which initiates the door actuation in the direction of the door opening when the condition recorded by it exceeds a predetermined threshold value.
  • a faulty response of such a sensor cannot, however, be completely ruled out; in any case, complex safety measures must be provided in the real vehicle in order to rule out accidents caused by sensor errors.
  • the known device does not show how the emergency opening of the door cooperates with the normal, operational door control.
  • an emergency ventilation device (emergency valve) inside the door area. If this emergency valve is actuated in the event of danger, the entire drive-side compressed air opening and closing system of the relevant door is vented, ie the excess pressure in it is released to the atmosphere.
  • a swing door arrangement with mechanical locking is known (DE 27 43 598 A1), in which the mechanical rotary latch lock is first released via an emergency release lever and only then is the vent valve actuated. However, the door initially remains in its closed position and must be pushed into the open position by hand.
  • An equivalent emergency actuation arrangement for an electromotive door drive is also known (DE 35 37 136 A1), the system ventilation being replaced by the removal of a short circuit blocking the door drive motor via a suitable emergency switch.
  • a series connection of two valves, which also serve as emergency taps, in addition to a pneumatically operated vehicle door, one outside and one inside, is known (EP 0 182 684 B1), with which the door drive cylinder can be de-energized without system ventilation.
  • a post-published EP 0 496 961 A1 discloses a pneumatic door actuation system for vehicles, which likewise describes the direct activation of the switching device for the door drive by means of the internal emergency valve.
  • the door valve provided as a switching device can only be controlled pneumatically, so that the electrical control signals generated by the driver button in normal operation must first be converted into pneumatic control commands by means of a separate, electromagnetically switchable pilot valve.
  • EP 0 446 651 A2 published in the priority interval, describes an option for assisting vehicle occupants when opening the door in an emergency, in which, after the internal emergency valve has been switched over, an action of force on the door to be opened initiates a force-assisted opening process. In this case, however, the actuation of an additional opening switch that detects the opening attempt is required in order to trigger the prepared power assistance.
  • the invention has for its object to design a generic circuit arrangement in a vehicle so that a reliable and safe door opening is made possible in an emergency even without the use of sensors and monitoring circuits.
  • the door drive When the internal emergency valve is actuated, the door drive is actuated via a switching device that is operatively connected to the emergency valve for the automatic, power-assisted opening of the door leaf assigned to the emergency valve.
  • a switching device that is operatively connected to the emergency valve for the automatic, power-assisted opening of the door leaf assigned to the emergency valve.
  • Another common function of the emergency ventilation device for compressed air operated doors is their use as a shut-off device with which the door system can also be vented for maintenance and assembly work.
  • This function can also be maintained with the now proposed power-assisted emergency opening, either by providing a separate workshop shut-off valve for system ventilation or by the emergency actuation device being designed in several stages such that, for. B. after pivoting the emergency valve by 90 °, the power-assisted emergency opening is initiated and - after overcoming a pressure point - the door system is completely vented after a further 90 ° swivel.
  • the latter circuit has the advantage that the door system can also be vented directly by vehicle occupants if necessary.
  • FIG. 1 these are a compressed air reservoir 1, which is continuously supplied with compressed air by a pump in a not shown, customary manner and is kept at a minimum pressure level.
  • a compressed air reservoir 1 On the door side, only a single cylinder with a piston 2K, a piston rod 2S, a closing chamber 2Z and an opening chamber 2A is shown as the door drive 2 for opening and closing, the broken piston rod 2S being shown kinematically in the usual way with a door leaf of an oscillating , Pivoting or (pivoting) sliding door is coupled.
  • the common spindle rotary drives with locking stroke can be used in connection with the present system.
  • the locking chamber 2Z and the opening chamber 2A of the door drive 2 are each connected via a pneumatic line LZ or LA to valve paths of a switching device in the form of a door valve 3 which can be switched electromagnetically and pneumatically.
  • This is a 6/3-way valve with three independent actuators A, B and C executed, each of which is used to set a respectively assigned stable valve switching position - which are marked in the drawing with the corresponding lower case letters a, b and c.
  • Drive A can be activated both electrically via an indicated electrical line and via a pneumatic part A p , while drive B operates purely electrically and drive C operates purely pneumatically.
  • the door valve 2 as such, in the symbolically represented form, in which all three drives A, B and C can act both electrically and pneumatically, is already installed in city buses manufactured by the applicant.
  • the electrical part of the drive C and the pneumatic part of the drive B could be dispensed with in order to minimize costs.
  • Two of the six valve connections of the door valve 3 are connected to the chambers 2Z (line LZ) and 2A (line LA) of the door drive 2, the third connection is connected to atmospheric pressure, and the fourth connection serves to pressurize the system pressure from the compressed air reservoir 1 via a main line LH.
  • the fifth and the sixth valve connection are provided for the control lines of the pneumatic drives A p and C.
  • the door valve or its electromagnetic drives thus form a manually activatable control device for the control operation of the power-assisted opening and closing of the door.
  • the driver button can only be effective when the operating switch (ignition / steering lock switch) of the vehicle is switched on, which ensures that when it is actuated, the prescribed anti-jamming devices, not shown here, are also active.
  • the piston 2K of the door drive 2 is drawn in the closed position, in which the closing chamber 2Z is pressurized with compressed air and the opening chamber 2A is vented, so that the door leaf coupled to the piston rod 2S is kept pneumatically closed in addition to any mechanical locking provided.
  • the fourth valve connection to which the lines LA and LZ can be connected alternately (positions a and b of the door valve 3), is preceded in the main line LH by a starting throttle 4 which can be set as a function of pressure and which, after the pressure has built up, in front of the door valve an adjustable pressure switching point switches to free passage.
  • a check valve connected in parallel ensures normal permeability of the starting throttle with reverse flow.
  • B. is useful in emergency and repair ventilation.
  • the usual adjustable throttle valves for speed limitation of door movements are not shown here.
  • the workshop shut-off valve 5 and the external emergency valve 6 are designed in the same way in terms of construction and effect as 4/2-way valves with rotary or rotary actuators. In their normal position they are in series and connect the accumulator pressure to the starting throttle 4.
  • a line LN branches off from the pneumatic main line LH to an internal emergency valve 7, which is also designed as a manually operated 3/2-way valve with a rotary or swivel drive. In its normal position, it places the pneumatic part A p of the drive A of the door valve 3 at atmospheric pressure, so that it is depressurized.
  • a shuttle valve 8 is provided for connecting the pneumatic drive C of the door valve 3 to the pressure accumulator 1, which can be pressurized with compressed air on the input side via the external emergency valve 6 as well as via the workshop shut-off valve 5 and is connected to the drive C on the output side.
  • the shuttle valve 8 is required because both taps 5 and 6 connect the control line for actuator C to atmosphere in their normal position, and after actuation of only one of the two taps prevents unintentional venting of the control line for actuator C via the respectively unactuated tap 5 or 6
  • the shuttle valve can be viewed as an OR gate for actuating actuator C.
  • the drive C switches the door valve 2 to the position c in which the two chambers 2A and 2Z of the door drive 2 are pneumatically short-circuited.
  • the door system is vented via the main line LH and the external emergency valve 6 in the manner known from the usual emergency tap function, ie the pressure is reduced on the door drive side.
  • the pressure accumulator only acts on the drive C of the door valve 7, but is of course not itself vented in order to avoid large pressure losses and long pressure build-up times after recommissioning.
  • the door can then be unlocked mechanically using the outer door handle and opened manually.
  • the workshop shut-off valve 5 works in exactly the same way.
  • the door cannot open because, due to the previous simultaneous pressurization of both chambers 2A and 2Z of the door drive 2 (position c of the door valve) the pressurized air must first be displaced from the chamber to be vented, which ensures adequate damping.
  • the internal emergency valve 7 is switched over with the system pressure present, the pneumatic part A p of the drive A of the door valve 3 is pressurized, so that the latter is switched over to its normal door opening position a. If there is still pressure on the main line LH, the opening chamber 2A of the door drive 2 is acted upon so that the door opens slowly. In any case, this can also be opened by hand after a pressure drop, because the closing chamber 2Z of the door drive 2 in position a of the door valve 3 is connected to atmospheric pressure via line LZ and is thus vented.
  • the internal emergency valve 7 in cooperation with the pneumatic part A p of the drive A on the door valve, forms a parallel arrangement to the opening function of the driver button.
  • shut-off valves 5, 6 or 7 described above requires an electrical connection for an unlocking or opening device.
  • the provided "powerless switching" position c of the door valve 3) means that door knocking or jamming of people can be completely ruled out.
  • the starting throttle 4 forms an additional safeguard for the special case that after opening the door via the internal emergency valve 7, the main line LH, if necessary, by actuating one of the taps 5 or 6 is vented. If the relevant valve 5 or 6 is then reset first before the internal emergency valve 7 is switched to its normal position, the opening chamber 2A of the door drive 2 can be ventilated only slowly because of the throttle 4 and, as a result, the associated door leaf only opens slowly .
  • the internal emergency valve 7 ' is designed here as a 6/3-way valve with a manual rotary actuator. In its basic position I, like the workshop shut-off valve 5 in FIG. 1, it connects the external emergency valve 6 to the starting throttle 4, while both the shuttle valve 8 and the pneumatic part A p of the drive A of the door valve 3 are connected to atmospheric pressure. In a first switching position II of the internal emergency valve 7 ', the external emergency valve 6 is also still pneumatically connected to the starting throttle 4, while the pneumatic part A p of the drive A is connected to the line LN via the line LN branched off from the main line LH in front of the starting throttle 4 System pressure can be applied.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Lock And Its Accessories (AREA)
EP92107725A 1991-06-25 1992-05-07 Schaltungsanordnung für die Notfallöffnung von fremdkraftbetätigten Türen Expired - Lifetime EP0520166B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4120837 1991-06-25
DE4120837A DE4120837A1 (de) 1991-06-25 1991-06-25 Schaltungsanordnung fuer die notfalloeffnung von fremdkraftbetaetigten tueren

Publications (2)

Publication Number Publication Date
EP0520166A1 EP0520166A1 (de) 1992-12-30
EP0520166B1 true EP0520166B1 (de) 1995-10-18

Family

ID=6434638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92107725A Expired - Lifetime EP0520166B1 (de) 1991-06-25 1992-05-07 Schaltungsanordnung für die Notfallöffnung von fremdkraftbetätigten Türen

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Country Link
EP (1) EP0520166B1 (enExample)
DE (2) DE4120837A1 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1309380B1 (it) * 1999-11-08 2002-01-22 Meccanica Fadini S N C Di Fadi Pistone oleodinamico perfezionato particolarmente del tipoapricancello o simile.
DE20307840U1 (de) 2003-05-20 2003-07-24 Gebr. Bode GmbH & Co. KG, 34123 Kassel Notentriegelungsvorrichtung an einer Schwenkschiebetür für Fahrzeuge, insbesondere Fahrzeuge des öffentlichen Personennahverkehrs
PL1717397T3 (pl) 2004-09-20 2014-11-28 Man Truck & Bus Ag Urządzenie do uruchamiania drzwi pojazdu
DE102006035140B3 (de) * 2006-07-29 2007-10-25 Daimlerchrysler Ag Schaltungsanordnung für eine Druckmittelbetätigung einer Tür
DE102009036783B4 (de) 2009-08-08 2017-11-09 Wabco Gmbh Nothahn, Türbetätigungsvorrichtung, Fahrzeugtüranlage, Fahrzeug und Verfahren zum Betreiben einer Fahrzeugtüranlage
DE102010045337A1 (de) * 2010-09-14 2012-03-15 Wabco Gmbh Türsteuerung für Fahrzeuge und ein Verfahren zur Betätigung eines Zylinders einer Fahrzeugtür
CN111677402B (zh) * 2020-07-14 2024-10-11 无锡市华通气动制造有限公司 一种防火门控制集成系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485252A (en) * 1945-10-24 1949-10-18 Midland Steel Prod Co Door operating fluid motor system
DE898400C (de) * 1950-08-01 1953-11-30 Cav Ltd Anlage zur elektrischen Betaetigung von Tueren, insbesondere fuer Fahrzeuge
US2782028A (en) * 1951-05-05 1957-02-19 Midland Steel Prod Co Door operating system
FR2572121B1 (fr) * 1984-10-24 1987-10-23 Renault Vehicules Ind Dispositif de commande de secours de l'ouverture d'une porte de vehicule de transport en commun
DE3536648A1 (de) * 1985-10-15 1987-04-16 Man Nutzfahrzeuge Gmbh Automatische tuer-notbetaetigung
DE4007700A1 (de) * 1990-03-10 1991-09-12 Bode & Co Geb Elektropneumatischer tuerantrieb in fahrzeugen fuer personenbefoerderung
DE4110810A1 (de) * 1991-01-26 1992-07-30 Bosch Gmbh Robert Pneumatische tuerbetaetigungsanlage fuer fahrzeuge

Also Published As

Publication number Publication date
DE4120837C2 (enExample) 1993-04-01
EP0520166A1 (de) 1992-12-30
DE59204040D1 (de) 1995-11-23
DE4120837A1 (de) 1993-01-07

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