EP0959215A3 - Assembly for hydraulically operating a tailgate - Google Patents

Assembly for hydraulically operating a tailgate Download PDF

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Publication number
EP0959215A3
EP0959215A3 EP99890057A EP99890057A EP0959215A3 EP 0959215 A3 EP0959215 A3 EP 0959215A3 EP 99890057 A EP99890057 A EP 99890057A EP 99890057 A EP99890057 A EP 99890057A EP 0959215 A3 EP0959215 A3 EP 0959215A3
Authority
EP
European Patent Office
Prior art keywords
valve
cover flap
return
tank
vehicle
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)
French (fr)
Other versions
EP0959215A2 (en
EP0959215B1 (en
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/en
Publication of EP0959215A3 publication Critical patent/EP0959215A3/en
Application granted granted Critical
Publication of EP0959215B1 publication Critical patent/EP0959215B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • 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 RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/546—Tailgates
    • 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

Abstract

Die Erfindung betrifft eine 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 vorgesehen ist. Um auf einfache und sichere Weise die Beschädigung der Anordnung bei manueller Notbetätigung der Abdeckklappe zu vermeiden, setzt 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) an, in welcher das Druckbegrenzungsventil (25 bzw. 26) eingesetzt ist.

Figure 00000001
The invention relates to an arrangement for the hydraulic actuation of a boot lid, a cover flap or the like (1) on a vehicle, with at least one double-acting hydraulic working cylinder (3) which is articulated on the one hand on the vehicle and on the other hand on the cover flap and its working spaces (8 , 9) are each connected to one side of a switchable pressure source (12) via a non-return valve (10, 11), the two non-return valves having a mutual unlocking device, each of the working spaces parallel to the non-return valves via a preload valve that controls the tank ( 15, 16) is kept at a certain pressure level and at least one pressure limiting valve is provided. In order to avoid damage to the arrangement in a simple and safe manner when the cover flap is operated manually, at least one work space (8, 9) and the associated unlockable non-return valve (10, 11) are set parallel to the preload valve (15 or 16) to the tank (17) leading line (23, 24) in which the pressure relief valve (25 or 26) is inserted.
Figure 00000001
EP99890057A 1998-05-22 1999-02-17 Assembly for hydraulically operating a tailgate Expired - Lifetime EP0959215B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0088498A AT405752B (en) 1998-05-22 1998-05-22 ARRANGEMENT FOR HYDRAULICALLY OPERATING A REAR LID
AT88498 1998-05-22

Publications (3)

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

Family

ID=3502047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99890057A Expired - Lifetime EP0959215B1 (en) 1998-05-22 1999-02-17 Assembly for hydraulically operating a tailgate

Country Status (3)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT408792B (en) 1999-11-22 2002-03-25 Hoerbiger Hydraulik HYDRAULIC ACTUATING ARRANGEMENT

Citations (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
EP0803630A2 (en) * 1996-04-24 1997-10-29 HOERBIGER GmbH Hydraulic operating device

Patent Citations (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
EP0803630A2 (en) * 1996-04-24 1997-10-29 HOERBIGER GmbH Hydraulic operating device

Also Published As

Publication number Publication date
EP0959215A2 (en) 1999-11-24
EP0959215B1 (en) 2005-04-27
ATA88498A (en) 1999-03-15
AT405752B (en) 1999-11-25
DE59911966D1 (en) 2005-06-02

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