EP1106840A2 - Circuit hydraulique - Google Patents

Circuit hydraulique Download PDF

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Publication number
EP1106840A2
EP1106840A2 EP00126948A EP00126948A EP1106840A2 EP 1106840 A2 EP1106840 A2 EP 1106840A2 EP 00126948 A EP00126948 A EP 00126948A EP 00126948 A EP00126948 A EP 00126948A EP 1106840 A2 EP1106840 A2 EP 1106840A2
Authority
EP
European Patent Office
Prior art keywords
drive unit
circuit device
convertible top
control line
drive
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
EP00126948A
Other languages
German (de)
English (en)
Other versions
EP1106840B1 (fr
EP1106840A3 (fr
Inventor
Jörg Plassmeyer
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.)
Wilhelm Karmann GmbH
Original Assignee
Wilhelm Karmann 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 Wilhelm Karmann GmbH filed Critical Wilhelm Karmann GmbH
Publication of EP1106840A2 publication Critical patent/EP1106840A2/fr
Publication of EP1106840A3 publication Critical patent/EP1106840A3/fr
Application granted granted Critical
Publication of EP1106840B1 publication Critical patent/EP1106840B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/30515—Load holding valves
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3052—Shuttle valves
    • 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/40—Flow control
    • F15B2211/46—Control of flow in the return line, i.e. meter-out control
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a return line
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
    • F15B2211/7128—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in parallel
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members

Definitions

  • the invention relates to a hydraulic circuit device according to the Preamble of claim 1.
  • EP 0 656 274 B1 discloses a circuit which can be controlled when two are formed Selector switches, namely a switch for the direction of pump rotation and on the other hand an electric motor-controlled control valve, four outputs U1 to U4 can act in different ways with pressure medium. Due to the symmetry of the arrangement, however, only such differences can be made Establish circuit states of the outputs that when pressurized a first exit only one option for the application the other outputs with pressure medium remain. If, for example, one there designated U1 Output is pressurized (see Fig. 1), the only option left is whether the output line U3 is also pressurized or this Line is depressurized. The outputs U2 and U4 are depressurized in any case.
  • the invention is based on the problem, these disadvantages without the use of additional Eliminate electrically controlled selector switch.
  • a first Drive unit for example a hydraulic cylinder or a pair of hydraulic cylinders
  • the second drive unit for example a further hydraulic cylinder
  • the three options for loading in the functional sense, in the opposite direction or a power release remain.
  • a pump with a direction of rotation is used, so that a second electrical Control for the selectability of the pump rotation direction is unnecessary.
  • a wide variety of pump types can be selected, whereas the pump selection is restricted with a right-handed and left-handed pump. The breaks in movement when switching the motor running direction are omitted.
  • movement phases overlap, for example in a convertible vehicle, during the Opening a clamping bracket of the convertible top compartment lid can be moved. The overall movement is accelerated.
  • a particular simplification arises when, for example, in the case of a hydraulic cylinder simultaneous pressurization of both the piston rod side and the piston-side connection line a resulting force transmission in the sense of a
  • the piston rod is extended because the cross-section on the piston rod side is smaller than the piston crown side.
  • the sense of function upon extension of the piston (referred to here as the opposite direction) to switch the floor rod side Connection line are dispensed with and only has to be on the piston bottom side Connection line to be pressurized.
  • the circuit device is particularly advantageously used in a convertible vehicle, in which, when the roof is closed, the roof closes at the rear Clamping bracket acted upon both in the opening and closing directions must be able to, on the one hand, in the opening phase the opening of a To enable top compartment lid and on the other hand in the closing phase after Closing the top compartment lid to be able to be placed on this. Moreover the clamp must be depressurized during the opening phase of the Hoods. In total, there are three circuit states of the second drive unit required in a circuit state of the first drive unit, whereas during the switchover of the first drive unit in the sense of opening the convertible top the clamp drive must be kept depressurized in any case.
  • Circuit device 1 within a circuit 7 for interconnection two drive units 2, 3, the drive unit 2 being used, for example for opening and closing a convertible top 4 and the drive unit 2 for Opening and closing, namely swiveling up and down, of a rear Clamping bracket with which the convertible top 4 is closed on a convertible top compartment lid 5 is tensioned, is provided.
  • a third drive unit 6 for the Control of a convertible top compartment cover 5 is according to the first embodiment provided in the circuit in a conventional manner and not immediately influenced by the circuit device 1.
  • the circuit 7 comprises a reservoir 9 of hydraulic medium and a pump unit 10, which can be driven via a motor drive 11.
  • the pump unit 10 comprises one or more pumps, each of which is operated in one conveying direction. It different pumps come into consideration.
  • Pressure medium acts on a pressure medium line 12, which has a control line directly 13 of the first drive unit 2 is connected.
  • the pressure line 12 is over a assigned pressure relief valve 28 separated from the reservoir 9.
  • a Or valve member 25 connected via which the control line 18 and the aforementioned branch the control line 19 as inputs 25a, 25b on the output side 25c with a control line 26 of the first drive unit 2 are connected.
  • Line 19 is over their another branch directly connected to the control line 24 for the second drive unit 3.
  • the control line 23 is via a check valve 27 with the return line 17 connected.
  • the third drive unit has a control line 30 which is connected to that of the 3/2-way valve coming control line 20 is connected, as well as a control line 31, which is directly connected to the pressure line 12.
  • circuit device 1 within a circuit device 7 for a convertible vehicle is only one example application for a circuit device 1 according to the invention.
  • the drive units 2, 3, 6 are each as individual or pairs of hydraulic cylinders 32 is provided, which acts on the piston rod side line 13, 24, 31 and have a line 26, 23 and 30 acting on the piston bottom.
  • each movable in different directions of rotation are also other drive units, for example also rotating, in question, each movable in different directions of rotation are.
  • the drive members must 32 not be arranged in pairs, but under certain circumstances a single drive element is sufficient as the drive unit.
  • a switchover of the valve 16 is also carried out, whereby the Control line 20 of the convertible top compartment lid drive 6 is pressurized - and via this also its control line 30.
  • this results in a resulting introduction of force on the drive unit 6 in the opposite direction G, d. that is, the piston 33 extends.
  • the convertible top compartment lid 5 still opens due to the pressurization open clamp 8.
  • valve 14 is open for otherwise unchanged conditions switched, whereby the input sides 22a of the AND element 22 and 25a of the OR element 25 are pressurized. Since at the same time by switching the Valve 15 already the opposite input sides 22b and 25b of the undemember 22 or the OR member 25 are pressurized, both switch on Passage, so that now no longer only the output side 25c of the OR element 25 and thus the control line 26 of the drive unit 2 -, but also the output side 22c of the gate 22 is pressurized - and thus also the control line 23 of the clamping bracket drive unit 3. This is therefore in total opposite moved, the clamping bracket 8 thus pivoted downwards.
  • valves 14 and 15 are each switched to return, so that the output control lines 18 and 19 are depressurized. With that they are Input sides 22a, 22b and 25a, 25b of the underside 22 and of the OR member 25 depressurized, thus also their output lines 22c and 25c, and hence the control lines 26 and 23 of the convertible top drive unit 2 and clamping bracket drive unit 3 Convertible top drive unit 2, the control line 13 directly to the pressure line 12 is connected, is thereby moved in a functional sense, that is, the piston 33 is retracted. The convertible top 4 thereby opens. The clamp drive unit 3 is during this Process completely depressurized.
  • the pump unit 10 can be out of operation be set so that the pressure line 12 is brought into the depressurized position and the convertible top compartment cover 5, for example, via a locked lock in its Position above the top 3 is held. Since this position when open Roof is a permanent position, it makes sense for energy reasons that 7 completely switch off the pressure medium. It is also possible, to maintain the circuit according to FIG. 6, that is to say permanently the top compartment lid 8 act in the closing direction and the convertible top 4 via its drive unit 2 to act in the opening direction.
  • valve 16 is switched through (FIG. 8), so that the control line 30 of the convertible top compartment lid drive 6 is pressurized and thus overall this is moved in opposite directions, ie the piston 33 extends. Thereby opens the convertible top compartment lid 5.
  • the convertible top After opening the convertible top compartment cover 5, the convertible top is switched through of the valve 14 closed (Fig. 9).
  • the clamp bracket drive 3 remains depressurized.
  • the control line 18 pressurized, this pressure is at an input 25a of the OR member 25 on, thereby also at its output 25c, and hence on the control line 26 Drive unit 2, which is thus acted upon in total in opposite directions with force.
  • the Piston 33 extends, the top 4 is closed.
  • the inlet 22b of the gate 22 is kept depressurized, so that its output side also 22c and thus also the control line 23 of the clamping bracket drive 3 remains depressurized.
  • the clamping bracket 8 is thus moved with the convertible top 4 without pressure.
  • the clamping bracket 8 To close the convertible top compartment lid 5 again when the convertible top 4 is closed can, the clamping bracket 8 must first be pivoted upwards. To do this 10, the valve 15 is switched through, the valve 14 is switched to return. As a result, is located at both inputs 22b and 25b of the gate 22 and Or bar 25 pressure, while the opposite, acted on by the line 18 Inlets 22a and 25a are depressurized. The output line 25c of the Or member is pressurized so that with respect to the drive unit 2 for the convertible top 4 is pressurized both the control line 13 and the control line 26 remain and overall the drive unit 2 in the opposite direction G, that is in Piston extension direction, remains pressurized.
  • the output line 22c of the und-element 22 remains depressurized, thus the control line 23 of the drive unit 3. However becomes the control line by pressurizing the drive line 19 24 pressurized so that a total of the drive unit 3 for the clamping bracket 8 is operated in the sense of function F, the clamping bracket 8 is thus pivoted upwards (open).
  • the top compartment lid 5 is closed under the clamp 8.
  • the valve 16 is set to return with otherwise unchanged conditions switched so that the control line 30 of the drive unit 6 is depressurized and the control line 31 remains pressurized, ie the top compartment lid 5 closes.
  • 13 and 14 are the possibilities of movement of the top compartment lid 5, of the top 4 and the clamping bracket 8 indicated by the arrows 4a, 5a and 8a, respectively.
  • the drive unit 2 is made possible with the exemplary embodiment shown for the convertible top 4 in the opposite direction G to close the convertible top 4 and thereby the clamping bracket drive 3 either in the opening direction F (Fig. 2) or to keep depressurized (Fig. 9) or to operate it in the opposite direction G (Fig. 12). So are three different resulting force introductions to the second drive unit 3 to achieve a constant application of force to the first drive unit 2, without the need for an additional controllable selector switch 14, 15 or 16 would.
  • the drive units 2, 3 and 6 are complete via two logical ANDs 141,142 and two logical ORs 143,144, each formed as a valve controllable by the pressure medium itself, with each other interconnected.
  • the tensioning bracket is activated by additionally switching the selector switch 16 of the convertible top compartment cover 5 is opened: the control line 20 is connected to the Pressure line 12 connected, the control line 30 thereby pressurized, so that the pistons 33 of the drive unit 6 extend.
  • pressurizing the Control line 20 simultaneously becomes an input of the OR element 144 with pressure medium pressurized so that the control line 31 is also pressurized via its outlet is what because of the different cross-sections of the piston bottom side and piston rod side attack surface of the pressure medium, however resulting in an extension of the pistons 33.
  • the clamping bracket 8 is lowered, for which purpose the selector switch 14 is switched through.
  • the control line 18 is thus pressurized, as well the left input of the OR gate 143 and the AND gate 142. Since its right input is also pressurized via the control line 19, the with its Output line connected to control line 23 for the clamping bracket 8 pressurized, so that the pistons 33 extend again and the clamping bracket 8 is lowered becomes.
  • Both input lines of the OR member 143 are pressurized, as well hence its output side, which at the same time branches off to an input of the gate 141, which is pressurized with it.
  • the other input is through the control line 20 also pressurized so that both the control line 13 and the Control line 26 are pressurized.
  • the convertible top 4 is therefore still closed Position held.
  • next step is to depressurize when the valve is closed Convertible top 4 reached when selector switches 14, 15, 16 all switched to reverse are.
  • the top compartment lid 5 is first opened, for this purpose the control line 30 via pass circuit of the selector switch 16 below Pressure put. At the same time, the control line connected to the control line 20 13 of the convertible top drive 2, so that the convertible top 4 in its open position remains.
  • the selector switch 14 is switched to pass, so that the Control line 18 the left-hand input of the OR element 143, and therefore also its Output, pressurizes and both inputs of the gate 141 are pressurized become. This also pressurizes its outlet line, which is directly connected to the control line 26 for the convertible top is connected. Because of the different Cross sections of the piston crown side and piston rod side surfaces are therefore when pressure is applied to both the control line 13 and the control line 26 the convertible top 4 closed.
  • the clamping bracket 8 is opened, this is done next to the selector switch 16, the selector switch 15 is switched to pass, so that the control line 24 is pressurized.
  • the selector switch 14 returns switched so that only one side of the gate 142 is pressurized, hence the connected to the control line 23 output of this element remains unpressurized.
  • the control line 26 of the convertible top drive 2 remains under pressure, that the right-hand input of the OR member 143 is now pressurized, its output line therefore remains pressurized and therefore both inputs of the limb 141 remain under pressure.
  • the top compartment lid 5 is closed.
  • the selector switch 16 switched to reverse.
  • the OR element 144 is pressurized on an input line, so that remains Output line that connects directly to the control line 31 for the convertible top compartment lid drive 6 is connected, pressurized.
  • the clamping bracket 8 is lowered.
  • the selector switch 14 and the selector switch 15 is switched to pass.
  • the undemember 142 is over both inputs pressurized, and therefore the control line 23, so that at at the same time acted upon control line 24 a total extension of the pistons 33 is reached, the clamping bracket 8 is pivoted downwards.
  • the starting position is then by depressurizing the selector switches 14, 15 and 16 reached again.
  • the clamping bracket drive 3 can be operated either in the opening direction F or in the opposite direction G or can be kept depressurized.
  • the lighter AND or or valve members can also 141,142,143,144 weight can be saved.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
EP00126948A 1999-12-10 2000-12-08 Circuit hydraulique Expired - Lifetime EP1106840B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19959560A DE19959560C2 (de) 1999-12-10 1999-12-10 Hydraulische Schaltungsvorrichtung
DE19959560 1999-12-10

Publications (3)

Publication Number Publication Date
EP1106840A2 true EP1106840A2 (fr) 2001-06-13
EP1106840A3 EP1106840A3 (fr) 2003-09-17
EP1106840B1 EP1106840B1 (fr) 2005-03-09

Family

ID=7932128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00126948A Expired - Lifetime EP1106840B1 (fr) 1999-12-10 2000-12-08 Circuit hydraulique

Country Status (3)

Country Link
US (1) US6523344B1 (fr)
EP (1) EP1106840B1 (fr)
DE (2) DE19959560C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1972480A3 (fr) * 2007-03-19 2012-06-27 Rausch und Pausch GmbH Installation hydraulique destinée à l'ouverture et la fermeture d'une capote de cabriolet
EP2799722A1 (fr) * 2013-05-03 2014-11-05 HAWE Hydraulik SE Commande hydraulique et élément logique

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1018035C2 (nl) * 2001-05-10 2002-11-12 Actuant Corp Hydraulische bedieningsinrichting voor een afdekking met bijbehorende grendel.
DE102005031971A1 (de) * 2005-07-08 2007-01-11 Wilhelm Karmann Gmbh Hydraulische Betätigungsanordnung
DE102006040137A1 (de) * 2006-08-26 2008-02-28 Zf Friedrichshafen Ag Ansteuerung eines Schaltzylinders
JP6283195B2 (ja) * 2012-12-04 2018-02-21 住友精密工業株式会社 脚揚降用電動油圧アクチュエータシステム
US11299866B2 (en) * 2019-09-24 2022-04-12 Deere & Company Dozer blade attachment control system and apparatus for a compact track loader

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629471A1 (de) * 1986-08-29 1988-03-03 Bosch Gmbh Robert Hydraulische steuereinrichtung
DE3826789A1 (de) * 1988-08-06 1990-02-08 Daimler Benz Ag Steuer- und betaetigungssystem fuer antriebselemente
EP0425156A2 (fr) * 1989-10-23 1991-05-02 Dura Acquisition Corporation Capote à actionnement assisté
DE19629065A1 (de) * 1995-08-01 1997-02-06 Hoerbiger Gmbh Hydraulische Betätigungsanordnung für ein Fahrzeugverdeck
EP0656274B1 (fr) * 1993-12-03 1997-10-15 Applied Power Inc. Circuit hydraulique
DE19730685A1 (de) * 1996-07-31 1998-02-05 Applied Power Inc Klappverdeckeinheit für ein Fahrzeug
EP0941882A1 (fr) * 1998-03-03 1999-09-15 Applied Power Inc. Unité de commande hydraulique, en particulier pour l' actionnement d' un toit pliant de vehicule

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EP2799722A1 (fr) * 2013-05-03 2014-11-05 HAWE Hydraulik SE Commande hydraulique et élément logique

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US20030033802A1 (en) 2003-02-20
DE19959560C2 (de) 2003-08-07
EP1106840B1 (fr) 2005-03-09
DE19959560A1 (de) 2001-06-21
EP1106840A3 (fr) 2003-09-17
DE50009714D1 (de) 2005-04-14
US6523344B1 (en) 2003-02-25

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