EP0959215A2 - Ensemble pour l'actionnement hydraulique d'un hayon arrière - Google Patents

Ensemble pour l'actionnement hydraulique d'un hayon arrière Download PDF

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Publication number
EP0959215A2
EP0959215A2 EP99890057A EP99890057A EP0959215A2 EP 0959215 A2 EP0959215 A2 EP 0959215A2 EP 99890057 A EP99890057 A EP 99890057A EP 99890057 A EP99890057 A EP 99890057A EP 0959215 A2 EP0959215 A2 EP 0959215A2
Authority
EP
European Patent Office
Prior art keywords
valve
cover flap
pressure
vehicle
tank
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
EP99890057A
Other languages
German (de)
English (en)
Other versions
EP0959215B1 (fr
EP0959215A3 (fr
Inventor
Gerhard Dipl.Ing. Huber
Bernhard Hollerbach
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.)
Hoerbiger Automatisierungstechnik Holding GmbH
Original Assignee
Hoerbiger Hydraulik 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 Hoerbiger Hydraulik GmbH filed Critical Hoerbiger Hydraulik GmbH
Publication of EP0959215A2 publication Critical patent/EP0959215A2/fr
Publication of EP0959215A3 publication Critical patent/EP0959215A3/fr
Application granted granted Critical
Publication of EP0959215B1 publication Critical patent/EP0959215B1/fr
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
    • E05F15/40—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
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • 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
    • E05Y2900/546—Tailboards, tailgates or sideboards opening upwards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20561—Type of pump reversible

Definitions

  • the invention relates to an arrangement for hydraulic actuation of a Rear cover, a cover flap or the like on a vehicle, with at least a double-acting hydraulic working cylinder, on the one hand on the Vehicle and on the other hand is hinged to the cover flap and its Workrooms each with a check valve with one side of each switchable pressure source are connected, the two check valves have a mutual unlocking device, each of the work rooms parallel to the non-return valves via a control valve in the tank Bias valve is kept at a certain pressure level and at least a pressure relief valve is provided.
  • Such arrangements are known and enable, for example, the automatic actuation of vehicle doors, bonnets, maintenance flaps or also of cover flaps of the trunk or of a folding roof Space.
  • the preload valve enables the cover flap to move in a controlled manner in this state, for example, by hand, such as an emergency closing to allow against a force specified by the preload valve.
  • the from the connections of the shuttle valve to the tank ensure that a predetermined maximum pressure in the System.
  • the object of the present invention is to provide a known arrangement of the Improve the type described above so that the disadvantages described to be avoided and that in particular in a simple and safe manner Damage to the arrangement when the cover flap is operated manually can be avoided.
  • This task is performed in accordance with an arrangement of the type mentioned solved the invention in that between at least one work space and the associated unlockable check valve parallel to the preload valve leads to the tank, line in which the pressure relief valve is inserted. Due to the parallel arrangement of the check valve and Pressure relief valve can also be operated manually and therefore closed Check valve of the preset pressure of the pressure relief valve dismantled via this valve and the hydraulic medium into the tank be shut down so that damage to the system and mechanical Parts are largely prevented.
  • Fig. 1 shows a schematic arrangement according to the present Invention in a vehicle
  • Fig. 2 shows a schematic hydraulic Circuit diagram of an arrangement according to the invention.
  • FIG. 1 The arrangement shown in Fig. 1 for hydraulic actuation of a Cover flap, a boot lid or other movable vehicle part 1 on a vehicle 2 has at least one double-acting hydraulic Working cylinder 3 on the one hand on the vehicle 2 and on the other the cover flap 1 is articulated.
  • the workrooms not shown here of the working cylinder 3 are via lines 4, 5 with a hydraulic unit 6 connected, which via a connecting line 7 with the electrical Vehicle 2 electrical system is connected.
  • movable hydraulic unit 6 may require the articulation of the working cylinder 3 on the vehicle and / or cover flap side also indirectly via levers, hinge arrangements or the like take place, the working cylinder 3 also being fixed relative to the vehicle 2 could be mounted.
  • the 2 is the combination of hydraulic unit 6 and Lines 4, 5 connected cylinder 3 shown in more detail.
  • the two working spaces 8, 9 of the working cylinder 3 are via the lines 4, 5 and each with a check valve 10, 11 arranged in the hydraulic unit 6 one side each of a switchable pressure source 12 (formed here Pump including drive motor) in connection.
  • the two check valves 10, 11 are connected via lines 13, 14 and can be unlocked from each other. over one bias valve 15, 16 each, the two working spaces 8, 9 are parallel to the check valves 10, 11 in the tank 17 as soon as an adjustable Pressure levels are reached or exceeded.
  • the preload valves 15, 16 are via lines 18, 19 and the pump side in front of the check valves 10, 11 prevailing pressure can be shut off hydraulically.
  • the working cylinder 3 moves off or on.
  • the motor of the pump of the pressure source 12 is energized, the pump runs and delivers pressure medium via the check valves 10 and 11 in the piston-side work space 8 or the rod-side work space 9.
  • About the Lines 18 and 19 are on the same side as the flow through Check valve lying bias valve 15 or 16 closed.
  • the cover flap 1 (Fig. 1) opens or closes hydraulically to stop in the working cylinder 3.
  • the volume of the rod-side working space 9 flows when opened via the hydraulically controlled via line 14 Check valve 11 and the shuttle valve 20 in the tank 16.
  • Each The hydraulic system delivers the counterweight or counterforce on the cover flap 1 overall, the force that can be set on the pressure relief valve 21 or 22.
  • the pump runs until the cover flap 1 is open and is then switched off.
  • the check valves 10 and 11 are closed, the pressure built up must be above the bias valves 15 or 16 and the pressure relief valves 25 and 26 be dismantled.
  • this speaks first when closing a lower pressure set bias valve 15, but can at somewhat faster and stronger actuation of the cover flap 1 the quickly Do not dissipate increasing pressure sufficiently. Therefore speaks a little later the higher pressure relief valve 25 controls the higher one Pressure and the hydraulic medium in the tank 17 and thus prevents one excessive pressure build-up in the system, which could lead to damage.
  • the pressure relief valve 26 ensures manual Opening the cover flap 1 with the extension of the working cylinder 3 prevents it damage to both the hydraulic and mechanical parts the actuator assembly and the vehicle parts themselves.
  • a cover flap 1 according to FIG. 1 could be the inventive arrangement of course also for the actuation of vertical in the closed state
  • Tailgates can be used for example a station wagon or a bus.
  • Other application examples would be e.g. Vehicle doors, maintenance or ventilation flaps and the like.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Lock And Its Accessories (AREA)
  • Actuator (AREA)
EP99890057A 1998-05-22 1999-02-17 Ensemble pour l'actionnement hydraulique d'un hayon arrière Expired - Lifetime EP0959215B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT88498 1998-05-22
AT0088498A AT405752B (de) 1998-05-22 1998-05-22 Anordnung zur hydraulischen betätigung eines heckdeckels

Publications (3)

Publication Number Publication Date
EP0959215A2 true EP0959215A2 (fr) 1999-11-24
EP0959215A3 EP0959215A3 (fr) 2004-01-02
EP0959215B1 EP0959215B1 (fr) 2005-04-27

Family

ID=3502047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99890057A Expired - Lifetime EP0959215B1 (fr) 1998-05-22 1999-02-17 Ensemble pour l'actionnement hydraulique d'un hayon arrière

Country Status (3)

Country Link
EP (1) EP0959215B1 (fr)
AT (1) AT405752B (fr)
DE (1) DE59911966D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT408792B (de) 1999-11-22 2002-03-25 Hoerbiger Hydraulik Hydraulische betätigungsanordnung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467509A (en) * 1944-11-28 1949-04-19 Bendix Aviat Corp Hydraulic system
US3266381A (en) * 1964-12-14 1966-08-16 Gen Motors Corp Control valve for vehicle closure operator system
AT403785B (de) * 1996-04-24 1998-05-25 Hoerbiger Gmbh Hydraulische betätigungsanordnung

Also Published As

Publication number Publication date
ATA88498A (de) 1999-03-15
AT405752B (de) 1999-11-25
EP0959215B1 (fr) 2005-04-27
DE59911966D1 (de) 2005-06-02
EP0959215A3 (fr) 2004-01-02

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