EP0959215B1 - Anordnung zur Hydraulischen Betätigung eines Heckdeckels - Google Patents
Anordnung zur Hydraulischen Betätigung eines Heckdeckels Download PDFInfo
- Publication number
- EP0959215B1 EP0959215B1 EP99890057A EP99890057A EP0959215B1 EP 0959215 B1 EP0959215 B1 EP 0959215B1 EP 99890057 A EP99890057 A EP 99890057A EP 99890057 A EP99890057 A EP 99890057A EP 0959215 B1 EP0959215 B1 EP 0959215B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- pressure
- tank
- line
- hydraulic
- 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
Links
- 101001017827 Mus musculus Leucine-rich repeat flightless-interacting protein 1 Proteins 0.000 description 7
- 230000036316 preload Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000003660 reticulum Anatomy 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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
- Such arrangements are known and allow, for example, the automatic operation of vehicle doors, bonnets, maintenance flaps or also from cover flaps of the trunk or a folding top receiving Space.
- the preload valve allows controlled further movement of the cover in this state, for example, by hand, such as an emergency closing to allow against a predetermined by the preload force.
- the from the connections of the shuttle valve to the tank diverting pressure relief valves ensure compliance with a predetermined maximum pressure in the System.
- a disadvantage of the cited known arrangement of the type mentioned is but the fact that in an emergency operation, the check valves closed are, so that the necessary strong operating forces in manual Opening and closing also cause very high pressures in the hydraulic system, which can not be removed via the closed check valves yes. Therefore threatens the damage, in particular the hinges of the cover flap, Boot lid od. Like., The hinges and also the controls.
- Object of the present invention is to provide a known arrangement of initially described type to improve so that the disadvantages described be avoided and that in particular in a simple and secure way the Damage to the assembly during manual emergency operation of the cover flap can be avoided.
- This object is according to an arrangement of the type mentioned in accordance the invention achieved in that between at least one working space and the associated pilot-operated check valve one parallel to the biasing valve leading to the tank, line attaches, in which the Druckbegrenzüngsventil is used. Due to the parallel arrangement of check valve and Pressure relief valve can also be closed by manual operation and therefore Check valve of the preset pressure of the pressure relief valve dismantled via this valve and the hydraulic fluid in the tank be canceled so that damage to the system and the mechanical Parts are largely prevented.
- FIG. 1 shows a schematic arrangement according to the present invention Invention in a vehicle
- Fig. 2 shows a schematic hydraulic Schematic of an inventive arrangement.
- FIG. 1 The arrangement shown in Fig. 1 for the hydraulic actuation of a Cover flap, a trunk 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 work areas 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 electric On-board network of the vehicle 2 is in communication.
- Fig. 2 the combination of hydraulic unit 6 and over the Lines 4, 5 connected working cylinder 3 shown in more detail.
- the two working spaces 8, 9 of the working cylinder 3 are via the lines 4, 5 and one in the hydraulic unit 6 arranged check valve 10, 11 with each one side of a switchable pressure source 12 (here formed from Pump with drive motor) in connection.
- the two check valves 10, 11 are connected via lines 13, 14 and mutually unlocked.
- about one biasing valve 15, 16 are the two working spaces 8, 9 parallel to the check valves 10, 11 diverted into the tank 17, as soon as an adjustable Pressure levels is reached or exceeded.
- the preload valves 15, 16 are via lines 18, 19 and the pump side before the check valves 10, 11 prevailing pressure hydraulically shut off.
- FIG. 1 connecting line 7 which in Fig. 2 not is shown separately controls the motor of the pump of the pressure source 12 and a shuttle valve 20. Furthermore, about this connecting line 7 also For example, limit switches or other position controls signals to not provide further shown control units or the like.
- the working cylinder 3 moves off or on.
- the motor of the pump of the pressure source 12 is energized, the pump runs and supplies pressure medium via the check valves 10 and 11 in the piston-side working space 8 and the rod-side working space 9.
- About the Lines 18 and 19 is on the same side as the respective flowed through Check valve lying biasing valve 15 or 16 controlled.
- Of the Pressure in the working space 8 or 9 can be up to the required value build up.
- the cover flap 1 (Fig. 1) opens or closes hydraulically to the stop in the working cylinder 3.
- the volume of the rod-side working space 9 flows when opening via the hydraulically controlled via the line 14 Check valve 11 and the shuttle valve 20 into the tank 16 from. ever counterweight or counterforce on the cover flap 1 provides the hydraulic Overall, the adjustable pressure relief valve 21 or 22 force.
- the Pump runs until the cover flap 1 is opened and is then switched off.
- the motor of the pump When closing hydraulically, the motor of the pump is again the pressure source 12 energized, in which case now pressure medium via the check valve eleventh is promoted in the rod-side working space 9.
- the lid 1 closes with an adjustable pressure relief valve 22 force. That from the piston-side working space 8 outflowing volume flows over the over the Line 13 open check valve 10 and the shuttle valve 20 in the tank 16 off.
- the closing force can not be higher than the pressure relief valve 22 are set, which can be easily realized that the cover 1 can be stopped even if necessary by hand.
- the Cover flap 1 is when stopping the hydraulic actuation by the held the biasing valves 15 and 16 set pressure.
- the check valves 10 and 11 are closed, the pressure built up over the bias valves 15 or 16 and the pressure relief valves 25 and 26th be reduced.
- the pressure relief valve 26 ensures the manual Opening the cover 1 with extension of the working cylinder 3, the prevention Damage to both the hydraulic and mechanical parts the actuator assembly and the vehicle parts themselves.
- a cover flap 1 according to FIG. 1 (for example, on a trunk or the hood of a car) could the inventive arrangement
- the inventive arrangement for example, also for the operation of vertical when closed Tailgates are used for example a station wagon or a bus.
- Other application examples would be e.g. Vehicle doors, maintenance or ventilation flaps and more.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
- Lock And Its Accessories (AREA)
- Actuator (AREA)
Description
Claims (2)
- Anordnung zur hydraulischen Betätigung eines Heckdeckels, einer Abdeckklappe od. dgl. (1) an einem Fahrzeug, mit zumindest einem doppeltwirkenden hydraulischen Arbeitszylinder (3), der einerseits am Fahrzeug und andererseits an der Abdeckklappe angelenkt ist und dessen Arbeitsräume (8, 9) über je ein Rückschlagventil (10, 11) mit jeweils einer Seite einer umschaltbaren Druckquelle (12) in Verbindung stehen, wobei die beiden Rückschlagventile eine gegenseitige Entsperreinrichtung aufweisen, jeder der Arbeitsräume parallel zu den Rückschlagventilen über ein in den Tank absteuerndes Vorspannventil (15, 16) auf einem bestimmten Druckniveau gehalten ist und zumindest ein Druckbegrenzungsventil (25, 26) vorgesehen ist, dadurch gekennzeichnet, daß zwischen zumindest einem Arbeitsraum (8, 9) und dem zugehörigen entsperrbaren Rückschlagventil (10, 11) eine parallel zum Vorspannventil (15 bzw. 16) zum Tank (17) führende, Leitung (23, 24) ansetzt, in welcher das Druckbegrenzungsventil (25 bzw. 26) eingesetzt ist.
- Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß je eine Leitung (23, 24) parallel zu jedem Vorspannventil (15, 16) vorhanden und in jeder Leitung ein Druckbegrenzungsventil (25, 26) eingesetzt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0088498A AT405752B (de) | 1998-05-22 | 1998-05-22 | Anordnung zur hydraulischen betätigung eines heckdeckels |
AT88498 | 1998-05-22 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0959215A2 EP0959215A2 (de) | 1999-11-24 |
EP0959215A3 EP0959215A3 (de) | 2004-01-02 |
EP0959215B1 true EP0959215B1 (de) | 2005-04-27 |
Family
ID=3502047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99890057A Expired - Lifetime EP0959215B1 (de) | 1998-05-22 | 1999-02-17 | Anordnung zur Hydraulischen Betätigung eines Heckdeckels |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0959215B1 (de) |
AT (1) | AT405752B (de) |
DE (1) | DE59911966D1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT408792B (de) | 1999-11-22 | 2002-03-25 | Hoerbiger Hydraulik | Hydraulische betätigungsanordnung |
Family Cites Families (3)
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 |
-
1998
- 1998-05-22 AT AT0088498A patent/AT405752B/de not_active IP Right Cessation
-
1999
- 1999-02-17 DE DE59911966T patent/DE59911966D1/de not_active Expired - Lifetime
- 1999-02-17 EP EP99890057A patent/EP0959215B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATA88498A (de) | 1999-03-15 |
AT405752B (de) | 1999-11-25 |
EP0959215A3 (de) | 2004-01-02 |
EP0959215A2 (de) | 1999-11-24 |
DE59911966D1 (de) | 2005-06-02 |
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