EP0166077A2 - Distributeur de commande de porte - Google Patents

Distributeur de commande de porte Download PDF

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Publication number
EP0166077A2
EP0166077A2 EP85102124A EP85102124A EP0166077A2 EP 0166077 A2 EP0166077 A2 EP 0166077A2 EP 85102124 A EP85102124 A EP 85102124A EP 85102124 A EP85102124 A EP 85102124A EP 0166077 A2 EP0166077 A2 EP 0166077A2
Authority
EP
European Patent Office
Prior art keywords
valve
piston
chamber
actuating
inlet
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.)
Ceased
Application number
EP85102124A
Other languages
German (de)
English (en)
Other versions
EP0166077A3 (fr
Inventor
Wolfgang Gudat
Günter Sebesta
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.)
Wabco Westinghouse Fahrzeugbremsen GmbH
Original Assignee
Wabco Westinghouse Fahrzeugbremsen GmbH
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 Wabco Westinghouse Fahrzeugbremsen GmbH filed Critical Wabco Westinghouse Fahrzeugbremsen GmbH
Publication of EP0166077A2 publication Critical patent/EP0166077A2/fr
Publication of EP0166077A3 publication Critical patent/EP0166077A3/fr
Ceased 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
    • 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
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/49—Safety devices, e.g. detection of obstructions or end positions specially adapted for mechanisms operated by fluid pressure, e.g. detection by monitoring transmitted fluid pressure
    • 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
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Definitions

  • the invention relates to a door valve for a pneumatically operated door system, in particular for vehicles for the transportation of passengers, which has at least one door drive with an opening chamber and a closing chamber, an operating device with one operating switch each in the opening and closing direction and at least one emergency shutdown device, according to the preamble of Claim 1.
  • Such a door valve is known from DE-OS 32 25 536, there in particular Fig. 2.
  • the second actuating devices (end faces 91, 92) of the 3/2-way valves are preceded by an AND gate (check valve 79), the two inputs of which are via the inlet valves of the double solenoid-controlled valve valves (magnets 96.97) can be connected to the supply connection and can therefore be ventilated.
  • the AND gate becomes permeable and ventilates the second actuating devices.
  • Both inputs of the AND gate are simultaneously ventilated in the event of an emergency shutdown.
  • the solenoids of both double valves are activated at the same time.
  • the inlet valves of both double valves are opened simultaneously and thereby both the first actuating devices and the second actuating devices of both 3/2-way valves are ventilated at the same time.
  • each 3/2-way valve is placed in its first switching position against the action of its first actuating device, as a result of which the active surfaces of the door drive are simultaneously vented.
  • the AND gate in the known door valve can be a source of interference because of the leaks that occur and is also complicated and expensive.
  • the object of the invention is therefore to improve a door valve of the type mentioned at the outset with simple means in such a way that it does not require any complicated and costly components and is also less prone to failure.
  • the invention replaces the AND gate of the prior art with a third double valve, which is switched over when the emergency shutdown device is actuated.
  • the invention offers the advantage that the type of actuation of the emergency shutdown device can be selected independently of the operating device.
  • the third double valve according to the invention and thus the emergency shutdown device can be actuated, for example mechanically, in particular by hand, or by pressure medium, in particular pneumatically.
  • the invention further offers the advantage that the second actuating devices do not require simultaneous ventilation of the first actuating devices. As a result, the second actuating devices no longer need to overcome the counterforce of the respectively assigned first actuating device, but only the friction within the assigned 3/2-way valve, with the result that the second actuating devices and thus the door valve according to the invention can be implemented with reduced dimensions overall .
  • the third double valve is designed with magnetic control
  • the invention offers the additional advantage that a double valve that is essentially identical in construction can be used as the third double valve, which results in a rationalization effect.
  • the invention offers the possibility of assigning the connections within the generic 3/2-way valves to them first switching position, in the event of an emergency shutdown, all active surfaces of the door operator are either ventilated or vented at the same time.
  • the invention offers a further advantage in that the outlet valve of the third double valve can be connected to an emergency valve instead of directly to the atmosphere.
  • the third double valve is not actuated, i.e. With the outlet valve open and the inlet valve closed, the second actuating devices can be connected to the atmosphere or to the source of the supply pressure via this emergency valve, depending on whether it is in an operating position or in an emergency position.
  • the arrangement of the third double valve according to the invention offers a simple possibility of using the door valve without the use of additional components, such as an OR element (shuttle valve 85) in the prior art, in order to achieve an additional emergency shutdown function.
  • the emergency valve with its emergency shutdown function can also be the only emergency shutdown device in the door system.
  • the drawing shows a door valve with the features of the invention.
  • the door valve shown has a housing 51 with a supply connection 54, a vent 52, a first working connection 79 and a second working connection 66.
  • a bore is formed in the housing 51 with an axially centrally arranged area of enlarged diameter designed as a piston guide 77 and as piston shaft guides 59, 81 formed axial side areas of smaller diameter.
  • the supply connection 54 and the vent 52 are connected to the piston skirt guides 59, 81 via housing channels. Between the openings of the channels connected to the supply connection 54 and the vent 52, a channel connected to the first working connection 79 opens into the piston skirt guide 81 and a channel connected to the second working connection 66 into the piston shaft guide 59.
  • a first switching piston 55 consisting of a piston head 55 and a piston shaft 80
  • a second switching piston 57, 65 consisting of a piston head 57 and a piston shaft 65.
  • Both shift pistons are axially opposite each other with their piston heads 55 and 57 in the piston guide 77 and with their piston shafts 80 and 65 in the piston shaft guides 81 and 59 axially displaceably sealed, the end face 55a of the piston head 55 of the first switching piston 55 , 80 and the end face 57a of the piston head 57 of the second switching piston 57,65 are facing each other.
  • the piston shafts or 65 of both switching pistons 55, 80 and 57, 55 each have a constriction.
  • the constriction of the piston shaft 80 of the first switching piston 55, 80 forms a first connecting chamber 53 with the associated piston shaft guide 81
  • the constriction of the piston shaft 65 of the second switching piston 57, 65 forms a second connecting chamber 58 with the associated piston shaft guide 59.
  • the first switching piston 55.80 forms with the first Ver binding chamber 53 and the openings of the channels to the supply connection 54, the vent 52 and the first working connection 79 in the piston skirt guide 81, a first 3/2-way valve.
  • the second switching piston 57, 65 forms a second 3/2-way valve with the second connecting chamber 58 and the openings of the channels to the supply connection 54, the vent 52 and the second working connection 66 into the piston shaft guide 59.
  • Chambers formed from the end faces of the piston shafts 80 and 65 with the housing 51 are connected to the channels for ventilation 52.
  • the end faces 55a and 57a which include a third actuating chamber 56 with the piston guide 77, form a second actuating device for the respectively assigned 3/2-way valve.
  • the step surface between the piston guide 77 and the piston shaft guide 81 forms a housing stop for the first switching piston 55, 80.
  • the step surface between the piston guide 77 and the piston skirt Guide 59 forms a housing stop for the second switching piston 57, 65.
  • each switching piston 55, 80 or 57, 65 bears against the respectively assigned housing stop.
  • each 3/2-way valve In the second switching position of each 3/2-way valve, the respectively assigned switching piston 55, 80 or 5, 7.65 lies with the end face 55a, 57a of its piston head 55 or 57 on the end face of the piston head 55 or 57 of the other switching piston 55, 80 or 57, 65, which is located with the rear 55 b or 57 b of its piston head 55 or 57 on the associated housing stop.
  • a supply channel 60 with branch channels to the piston shaft guides 59 and 81, starting from the supply connection 54, has a first inlet seat 61 with a first inlet chamber 64, a second inlet seat 82 with a second inlet chamber 83 and a third inlet seat 68 with a third inlet chamber 76 in connection.
  • the first inlet chamber 64 communicates with the first actuating chamber 67, the second inlet chamber 83 with the second actuating chamber 78 and the third inlet chamber 76 with the third actuating chamber 56, each via a housing channel.
  • an actuating magnet is fastened to the housing 51 in a manner not shown.
  • the actuating magnet associated with the third inlet seat 68 applies correspondingly to the other actuating magnets.
  • the actuating magnet has an actuator 71 which is biased by a spring 75 against the third inlet seat 68 when the magnet, which is symbolized by its winding 69, is not activated.
  • the actuator 71 thereby forms an inlet valve 68, 71 with the third inlet seat 68.
  • the actuator 71 is formed on its end face facing away from the inlet seat 68 as a closing surface 72 which, together with an outlet seat 74 formed on the magnet housing, forms an outlet valve 72, 74.
  • the outlet valve 72, 74 is open when the magnet 69 is not activated.
  • the interior of the magnet housing is designed as a continuation of the third inlet chamber 76. This means that when the magnet is not activated, i.e.
  • the third inlet chamber 76 communicates with a changeover connection 73.
  • the magnet is activated, i.e.
  • the outlet valve 72, 74 is closed and the inlet valve 68, 71 is open, the inlet chamber 76 is connected on the one hand via the supply channel 60 to the supply connection 54 and on the other hand via the assigned housing channel to the third actuating chamber 56.
  • the actuating magnets associated with the other inlet seats 61 and 82 are identical in structure and function to the actuating magnets described above, the respective associated inlet chambers 64 and 83 with the magnet activated and with the associated first and second actuating chambers 67 and 78, respectively and are connected to ventilation openings 63 and 84 in the respective magnet housing when the magnet is not activated.
  • Each actuating magnet forms a double valve with the associated inlet and outlet valves, the first double valve 62 of the first actuating chamber 67, the second double valve 50 of the second control chamber 78 and the third double valve 70 of the third control chamber 56 are assigned.
  • each piston shaft guide 81 or 59 in such a way that each 3/2-way valve in its first switching position via the assigned connection chamber 53 or 58 the assigned work connection 79 or 66 vented and vented in its second switching position.
  • the door valve described above is connected in a manner not shown at its supply connection 54 to a pressure source, at the first working connection 79 to the opening chamber of a door drive, at the second working connection 66 to the closing chamber of a door drive and at the changeover connection 73 to an emergency valve on the other hand, is also connected to the pressure source.
  • the magnet of the first double valve 62 is electrically connected to a closing switch, the magnet of the second double valve 50 to an opening switch of an operating device and the magnet of the third double valve 70 to an emergency shutdown device.
  • the first switching piston 55, 80 assigned to the first 3/2-way valve is in a first position, indicated by I., and thus the first 3/2-way valve is in its first switching position.
  • the second switching piston 57, 65 assigned to the second 3/2-way valve is in a second position arranged by II and thus the second 3/2-way valve is in its second switching position.
  • the 3/2-way valve is the one with the second Working port 66 connected closing chamber is vented and the opening chamber connected to the first working port 79 is vented.
  • the door is therefore in a closing movement or in the closed state.
  • the inlet valves of the first double valve 62, the second double valve 50 and the third double valve 70 are closed.
  • the first actuating chamber 67, the second actuating chamber 78 and the third actuating chamber 76 are vented via the respectively assigned inlet chamber 64 or 83 or 76 and the respectively assigned outlet valve of the double valves 62 or 50 or 70.
  • the opening switch is now actuated, the magnet of the second double valve 50 is activated, its outlet valve is closed, its inlet valve is opened and the second actuating chamber 78 is thereby aerated.
  • the force building up on the rear 55 b of the piston head 55 of the first switching piston 55, 80 moves it from its position I to the right into its second position and thus the associated first 3/2-way valve from its first into its second switching position posed.
  • the first switching piston 55, 80 takes the second switching piston via the end face 57a of its piston head 55 from its position II to the right into its first position and thus sets the assigned second 3/2-way valve from its second to its first switch position.
  • the rear side 55 b of the piston head 55 of the first switching piston 55, 80 is at the same time the first (in connection with the end faces 55a, 57a) adjusting device for the second 3/2-way valve and resetting device for the first 3/2-way valve.
  • the rear 57 b of the piston head 57 of the second switching piston 57, 65 is also the first actuating device for the first 3/2-way valve and reset device for the second 3/2-way valve.
  • the inlet valve of the second double valve 50 is open for the duration of the switching pulse and the second actuating chamber 78 is thus vented.
  • this inlet valve is closed and the second actuating chamber 78 is vented via the outlet valve of the second double valve 50.
  • all control chambers are vented, as before.
  • the second working connection 66 is connected to the vent 52 and thus the closing chamber is vented and the first working connection 79 is connected to the supply connection 54 and thus the opening chamber of the door operator is ventilated with the result that the door is now driven in the opening direction.
  • the magnet of the third double valve 70 is activated, thereby opening the inlet valve 68, 71, closing the outlet valve 72, 74 and the third actuating chamber 56 during the. Ventilation duration of the switching pulse.
  • the second switching piston 57, 66 is pushed to the right into its first position and thereby the second 3/2-way valve into it first switch position.
  • the position of the first switching piston 55.80 and thus of the first 3/2-way valve remains unaffected.
  • the third inlet chamber 76 and thus the third actuating chamber 56 can be connected to the atmosphere via the changeover opening 73 or to an emergency valve, which on the other hand is connected to the pressure source.
  • the change opening 73 is connected to an emergency valve.
  • the emergency valve need only be designed so that it connects the change opening 73 to the atmosphere in an operating position and the change opening 73 to the pressure source in an emergency position.
  • the changeover of the 3/2-way valves proceeds as described above for the case of actuation of the emergency shutdown device.
  • the third actuating chamber 56 is connected to the changeover opening 73 via the third inlet chamber 76 and the exhaust valve 72, 74, which is open again. After this switching process, all control chambers are again vented.
  • the closing switch can be operated. As a result, the first actuating chamber 67 is ventilated in the manner described, the second switching piston 57, 65 is moved to the left into its second position and thus the second 3/2-way valve is placed in its second switching position and the second working connection 66 and thus the closing chamber of the door drive ventilated again.
  • the opening switch can also be actuated, in which case the first working connection 79 and thus the opening chamber of the door drive are ventilated accordingly.
  • the third actuating chamber 56 remains ventilated for as long as the emergency valve is in its emergency position. In this case, therefore, the door system cannot be put back into operation by the operating device until after the emergency valve has been switched to its operating position, and then in the manner described above , possible.
  • the door valve described above can be modified with simple means so that both chambers of the door drive are ventilated instead of vented by actuating the emergency shutdown device or the emergency valve.
  • the supply connection and the vent must be interchanged, the duct system connected to the previous vent must be connected to the inlet seats 61, 68, 82 and the former supply duct must be separated from the inlet seats and from the end faces of the piston shafts 80 and 65 to the housing formed chambers are connected.
  • the assignment of the 3/2-way valve of the described exemplary embodiment to the chambers of the door drive would be reversed.
  • the door valve described above offers such versatile uses that it can be used in all known circuits of door systems. It is irrelevant whether, for example, the opening and closing switches are carried out separately or combined in a logic circuit which can also contain other functions, for example a reversing device as a further emergency shutdown device.
  • the exemplary embodiment described can also be used for applications with an emergency shutdown device that can be actuated by pressure medium if the third double valve has a pressure medium actuation device instead of or in addition to its magnet.
  • the actuator 71 of the third double valve 70 of the exemplary embodiment can also be actuated with a direct mechanical application of force, as a result of which one or the further emergency shutdown function can advantageously be achieved in addition to or instead of via the emergency valve.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Fluid-Driven Valves (AREA)
  • Multiple-Way Valves (AREA)
EP85102124A 1984-06-02 1985-02-27 Distributeur de commande de porte Ceased EP0166077A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843420632 DE3420632A1 (de) 1984-06-02 1984-06-02 Tuerventil
DE3420632 1984-06-02

Publications (2)

Publication Number Publication Date
EP0166077A2 true EP0166077A2 (fr) 1986-01-02
EP0166077A3 EP0166077A3 (fr) 1986-07-16

Family

ID=6237494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102124A Ceased EP0166077A3 (fr) 1984-06-02 1985-02-27 Distributeur de commande de porte

Country Status (4)

Country Link
EP (1) EP0166077A3 (fr)
DE (1) DE3420632A1 (fr)
ES (1) ES8607469A1 (fr)
HU (1) HU193968B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1025679C2 (nl) * 2004-03-10 2005-09-13 Hermanus Westerlaken Scheepsraam.
CN105889563A (zh) * 2016-06-03 2016-08-24 姜怀东 车门安全控制阀以及车门安全控制系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3639179A1 (de) * 1986-11-15 1988-05-26 Wabco Westinghouse Fahrzeug Tuerventileinrichtung
DE3639178A1 (de) * 1986-11-15 1988-05-26 Wabco Westinghouse Fahrzeug Tuerventil
DE3639177A1 (de) * 1986-11-15 1988-05-26 Wabco Westinghouse Fahrzeug Tuersteuereinrichtung
DE19645701A1 (de) * 1996-11-06 1998-05-07 Wabco Gmbh Ventileinrichtung für eine durch ein Druckmittel betätigbare Türanlage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929578A1 (de) * 1979-07-21 1981-02-05 Wabco Fahrzeugbremsen Gmbh Notventileinrichtung in pneumatischen oder hydraulischen steuerungsanlagen
DE3118764A1 (de) * 1981-05-12 1983-03-17 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Pneumatische tuerbetaetigungsanlage
DE3225536A1 (de) * 1982-07-08 1984-01-12 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Pneumatische tuerbetaetigungsanlage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006259A1 (de) * 1980-02-20 1981-08-27 Wabco Fahrzeugbremsen Gmbh, 3000 Hannover Wechselventil fuer pneumatisch gesteuerte tueranlgen
DE3105867C2 (de) * 1981-02-18 1982-12-02 Daimler-Benz Ag, 7000 Stuttgart Schaltungsanordnung für druckmittelbetätigte, insbesondere pneumatisch betätigte, Türen in Fahrzeugen, wie Omnibussen, Straßenbahnen o.dgl.
DE3122135A1 (de) * 1981-05-08 1982-12-23 Robert Bosch Gmbh, 7000 Stuttgart Tuerbetaetigungseinrichtung
DE3118763A1 (de) * 1981-05-12 1982-12-09 Wabco Fahrzeugbremsen Gmbh, 3000 Hannover Elektro-pneumatisches tuerventil
DE3130699C2 (de) * 1981-08-03 1986-07-24 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Omnibus mit einer kraftbetätigten Tür

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929578A1 (de) * 1979-07-21 1981-02-05 Wabco Fahrzeugbremsen Gmbh Notventileinrichtung in pneumatischen oder hydraulischen steuerungsanlagen
DE3118764A1 (de) * 1981-05-12 1983-03-17 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Pneumatische tuerbetaetigungsanlage
DE3225536A1 (de) * 1982-07-08 1984-01-12 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Pneumatische tuerbetaetigungsanlage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1025679C2 (nl) * 2004-03-10 2005-09-13 Hermanus Westerlaken Scheepsraam.
CN105889563A (zh) * 2016-06-03 2016-08-24 姜怀东 车门安全控制阀以及车门安全控制系统

Also Published As

Publication number Publication date
EP0166077A3 (fr) 1986-07-16
DE3420632A1 (de) 1985-12-05
ES8607469A1 (es) 1986-05-16
ES542280A0 (es) 1986-05-16
HU193968B (en) 1987-12-28
HUT40826A (en) 1987-02-27

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