EP0117806A1 - Flüssigkeitsverteiler, insbesondere für Fernsteuerung - Google Patents

Flüssigkeitsverteiler, insbesondere für Fernsteuerung Download PDF

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Publication number
EP0117806A1
EP0117806A1 EP84400311A EP84400311A EP0117806A1 EP 0117806 A1 EP0117806 A1 EP 0117806A1 EP 84400311 A EP84400311 A EP 84400311A EP 84400311 A EP84400311 A EP 84400311A EP 0117806 A1 EP0117806 A1 EP 0117806A1
Authority
EP
European Patent Office
Prior art keywords
drawer
pusher
chamber
fluid
bore
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
EP84400311A
Other languages
English (en)
French (fr)
Other versions
EP0117806B1 (de
Inventor
Michel Bessard
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.)
Rexroth Sigma SA
Original Assignee
Rexroth Sigma SA
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 Rexroth Sigma SA filed Critical Rexroth Sigma SA
Priority to AT84400311T priority Critical patent/ATE21148T1/de
Publication of EP0117806A1 publication Critical patent/EP0117806A1/de
Application granted granted Critical
Publication of EP0117806B1 publication Critical patent/EP0117806B1/de
Expired 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87056—With selective motion for plural valve actuator
    • Y10T137/87064—Oppositely movable cam surfaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87056—With selective motion for plural valve actuator
    • Y10T137/87072—Rotation about either of two pivotal axes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87233—Biased exhaust valve

Definitions

  • the invention relates to a fluid dispensing device, in particular for a remote control, of the type which includes a body provided with bores with parallel axes in which are mounted sliding drawers associated two by two, in particular symmetrically with respect to the 'axis of the body, these drawers being controlled by pushers actuated by an oscillating cam or the like to establish the desired communications between an inlet of pressurized fluid, a reservoir of fluid at low pressure, and a starting orifice towards a member of use, each spool bore having a groove connected to the arrival of pressurized fluid, each slide valve being combined with a chamber limited by at least one annular surface of trans - versale of the drawer and connected to the tank via a throttle.
  • the invention relates more particularly, but not exclusively, the dispensing devices of this kind used on s public works vehicles.
  • the object of the invention is essentially to remedy these drawbacks as far as possible and to propose a dispensing device which gives better satisfaction to the various requirements of the practice, and which, in particular, is of a smoother operation, which either more reliable and safer and which is of a simpler and less costly structure to manufacture.
  • a fluid dispensing device of the kind defined above is characterized in that it comprises means for returning each pusher suitable for maintaining a first pusher in permanent support against the cam when the latter tends to move away from said pusher during the driving-in movement of a second associated pusher, the drawer corresponding to the first pusher being driven by the latter in its movement, and by the fact that each drawer has, on its periphery, towards its end distant of the pusher, a recess whose arrangement and length are such that before the end of the complete movement of the drawer during its drive by the first pusher, said recess establishes a connection between the inlet of pressurized fluid and the said chamber, the assembly being such that there is a rise in pressure of the fluid in this chamber which ensures the locking of the drawer and of the first pusher in the high position and, consequently, the locking of the other pusher and of the corresponding drawer in position low.
  • each pusher may comprise elastic return means, in particular formed by a spring bearing at one end against the body, and at the other end against the pusher, abutment surfaces being provided between the pusher and the drawer to allow the drawer to be driven by the pusher.
  • the recess provided at the periphery of the drawer can be formed by a peripheral clearance forming an annular groove.
  • the drawer can be a regulation drawer, the insertion of which is controlled, from the pusher, by means of a setting spring so that the pressure of the fluid, at the outlet orifice, can be adjusted.
  • the starting orifice is provided in the axis of the bore of the regulating slide, which comprises an axial channel opening at one end towards said starting orifice, the aforesaid. chamber being provided in the body of the distributor and being located in the direction of the axis of the bore between the zone of this bore where the axial channel opens and the groove connected to the pressure inlet.
  • the drawer can be a simple dispensing drawer directly controlled by the pusher; the chamber is then provided, in the distributor body, at the end of the drawer opposite the pusher.
  • all the fluid pressure inlet, return to the reservoir, and departure orifices can be provided on the same face of the distributor, generally the face opposite to that adjacent to the cam.
  • the locking is provided in such a way that it is possible for the user to overcome the locking effort in the event of an emergency or safety stop, by acting on the normal control and exerting a reasonable effort.
  • This unlocking command can be carried out by establishing a connection, in particular by means of an electrovalve, between the chambers corresponding to two associated drawers.
  • a fluid distributor device 1 formed by a hydraulic manipulator, in particular for remote control.
  • This device comprises a body 2 provided with bores 3 with parallel axes in which are mounted drawers 4 associated two by two, symmetrically with respect to the axis A-A of the body.
  • Generally two or four slots, as well as two or four corresponding drawers are provided in the body 2, diametrically opposite two by two.
  • Each drawer 4 is controlled by a pusher 5 actuated by an oscillating cam 6 or the like.
  • the cam 6 forms a sort of plate fixed to a control lever 7 articulated around the point O.
  • Each slide 4 is suitable for establishing, by moving in the bore 3, the desired communications between an inlet for pressurized fluid P located in the body 2, a low-pressure fluid reservoir (not shown) connected to the areas designated by T and a starting orifice D, corresponding to each bore 3, towards a user member (not shown) such as a hydraulic cylinder .
  • Each bore 3 has an annular groove 8 connected to the pressurized fluid inlet P.
  • Each drawer 3 is combined with a chamber 9 limited by at least one annular transverse surface b of the drawers.
  • This chamber 9 is connected to a pipe 10 leading to the reservoir via a throttle e advantageously formed by a nozzle 11 with calibrated nozzle mounted in a pipe 12 connecting the chamber 9 to the pipe 10.
  • each drawer 4 is a regulation drawer whose insertion, in the bore 3 is controlled from the pusher 5 by means of a calibration spring 13.
  • the outlet or departure orifice D associated with the bore 3 is provided in the axis of this bore; the drawer 4 has an axial channel 14 opening at its end 15 facing the orifice D. Radial channels, 16, 17 are provided in appropriate places, in the axial direction, to establish the desired connections during the movement of the drawer 4 .
  • the end zone 15 of the drawer 4 has a smaller diameter f than that of the bore 3 (the diameter of the bore 3 is, apart from the operating clearance, that of the major part of the drawer 4 ).
  • the transverse annular surface b is formed by the shoulder marking the transition between the end zone 15 and the rest of the drawer.
  • the chamber 9 is provided in the body of the distributor and is located, in the direction of the axis of the bore, between the zone 21 of this bore where the axial channel 14 opens, and the groove 8 connected to the inlet of pressure P.
  • the dispensing device 1 comprises return means R of each pusher 5 suitable for maintaining a first pusher against the cam 6 when the latter tends to move away from said pusher during the driving-in movement of a second diametrically opposite pusher. According to the representation of FIG. 1, this means that the first pusher 5 is held in abutment against the cam 6 when the region of the latter, in abutment against the pusher, moves upwards.
  • These return means R advantageously comprise elastic return means formed by a spring 22 bearing, at one end, against the body 2 and, at its other end, against the pusher 5, in particular by means of a cup 23.
  • Stop surfaces 24, 25 are provided between the pusher 5 and the drawer 4 to allow the drawer to be driven, by the pusher 5 under the action of the spring 23, in an upward movement according to the representation in FIG. 1. More specifically, the abutment surface 24 of the pusher 5 is obtained at using two semi-washers separated according to a diameter, inserted between the cup 23 and the base of the pusher 5.
  • the abutment surface 25 is formed by a transverse shoulder of the head 25a of a plunger 26 secured to the drawer 4.
  • the head 25a is located in a blind bore 27 of the pusher 5, the axial length of this blind bore 27 allowing a movement, upwards relative to the pusher, of the head 25a.
  • the cup 23 and the pusher 5 slide in a bore 28 provided in an upper part 2a, attached, of the distributor body.
  • the bore 28 is closed by a plug 29, screwed into the threaded end of the bore 28, and the internal transverse face 29a of which serves as a limit stop for the pusher 5.
  • Each drawer 4 has, on its periphery, towards its end 15 remote from the pusher, a cavity advantageously constituted by a peripheral recess forming an annular groove 30 situated between the end zone 15 of the drawer 4, and the rest of the drawer.
  • this groove 30 along the axis of the drawer 4, and its length are such that before the end of the complete displacement of the drawer 4 during its drive (upwards according to the representation of FIG. 1) by the pusher 5 , said recess or groove 30 establishes a connection between the groove 8 for the arrival of pressurized fluid and the chamber 9.
  • this chamber there is an increase in fluid pressure in this chamber, which ensures the hydraulic locking of the drawer 4 and of the pusher 5 in the high position and consequently the locking of the pusher and of the corresponding diametrically opposite drawer in the low position.
  • the abutment surface 29a of the plug 29 is located so that the pusher 5 can travel long enough for the groove 30 to come into communication with the groove 8.
  • the permanent flow which is established through the nozzle 11 creates a pressure drop ensuring the maintenance of sufficient pressure in the chamber 9 for hydraulic locking.
  • This locking is provided in such a way that it is possible for the user to overcome the hydraulic locking effort in the event of an emergency stop or for safety reasons by exerting a reasonable effort on the lever 7.
  • An automatic unlocking control can be provided for example when a lifting movement controlled by the operating member (not shown) connected to the starting orifice D is completed.
  • this unlocking command comprises a set 31 of connecting pipes between the two chambers 9 of the diametrically opposite drawers 4.
  • the passage of the fluid in this pipe assembly 31 is controlled by a solenoid valve 32 whose drawer 33 is housed in a pipe section of the assembly 31.
  • the hydraulic locking can take place.
  • the communication between the two opposite chambers 9 is established by the drawer 33, there is pressure equalization in the chambers and unlocking, in particular because the spring 19 compressed by the pressed drawer 4 can push this drawer 4 and therefore the cam 6 to the neutral position.
  • the control of the solenoid valve 32 can be ensured by a limit switch contact (not shown) controlling the unlocking at the end of movement, for example of a jack connected to the orifice D , or on a distributor with hydraulic control controlled by the pressure from the orifice D, by displacement of the slide 33.
  • the corresponding pusher 5 When the lever is tilted in one direction, the corresponding pusher 5 is actuated by the cam 6 including the corresponding calibration spring 16 which pushes the regulation slide 4 downwards.
  • connection which existed, in neutral position, between the starting orifice D and the exhaust T is removed; as the slide-in stroke of the slide 4 continues, the connection between the pressure inlet groove 8 and the starting orifice D is established by means of the radial channel 17 and the axial channel 14.
  • the other pusher 5 diametrically opposite to that which is depressed, is kept in contact against the cam 6 by the effect of the corresponding spring 22.
  • the slide 4 and the plunger 26 progressively rise until the recess g (groove 30) connects the groove 8 with the corresponding chamber 9.
  • the resulting flow of fluid in the chamber 9, through the nozzle 11, creates a pressure drop and an increase in pressure in the chamber 9.
  • This pressure causes the slide 4 and the plunger 26 which will come up abutment against the bottom of the blind bore 27.
  • the corresponding push-button 5 goes up in turn driving the cam 6 and the lever 7.
  • Hydraulic locking is performed. The user can release the lever 7 without the dispensing function being interrupted.
  • the solenoid valve 32 establishes, through its drawer 33, communication between the diametrically opposed chambers 9 and the equalization of the pressures in these chambers 9 cause the lever 7 to be unlocked and returned to position 9 , in particular due to the action of that of the springs 19 which is compressed.
  • the layout of the pipes in the body 2 is particularly simple, in particular because of the situation of the starting orifice D in the axial extension of the channel 14.
  • the body 2 has a lower part 2b, attached, as visible in FIG. 1.
  • the separation between the part 2b and the body 2 is advantageously carried out at the end surface of the Part 15 of the drawer 4 in the neutral position.
  • the bore 3 in which the major part of the slide 4 slides, and the bore in which the end portion 15 slides are provided in the same part 2 and their concentricity can be obtained under good conditions, when the making.
  • FIG. 2 illustrates an alternative embodiment in which the dispensing device is still equipped with regulation drawers.
  • the numerical references used in FIG. 1 are repeated, possibly accompanied by the letter c in FIG. 2, to designate identical elements or playing similar roles. The description of these elements will not be repeated in detail.
  • FIG. 2 The differences in construction between FIG. 2 and FIG. 1 will essentially be noted.
  • the chambers 9c are provided at the end of the bore 3 in which the drawer 4c slides.
  • the transverse surface b partially limiting the chamber 9c is formed by the frontal annular end surface of drawer 4c.
  • This drawer has an axial channel 14 transforming, in the area facing the chamber 9c, into a cylindrical housing 34 of larger diameter, which opens towards the chamber 9c.
  • a needle 35 is slidably mounted in a sealed manner in this housing 34; this cylindrical needle 35 bears, at one end, against the bottom of the chamber 9c.
  • the two ends of the needle 35 are rounded.
  • the spring 19 is compressed between the bottom of the chamber 9c and and an annular flange facing outwards from a bush 36 mounted on the end zone of the drawer 4c; the sleeve 36 has an inner rim 37 bearing against the transverse surface b of the drawer 4c.
  • the recess is formed by a clearance peri- p hérique 40 provided at the end of the drawer 4c.
  • the starting pipe 38 is connected by a bore, not shown, to the underside of the part 2b.
  • the chamber 9c receives pressurized fluid, and the pressure drop through the nozzle 11 causes the rise in pressure from this room.
  • the needle 35 then recovers in its housing 34 under the effect of the pressure and abuts against the bottom of this housing.
  • the plunger 4c also rises under the effect of the pressure, and the head 25a abuts against the bottom of the bore 27.
  • Hydraulic locking is obtained under the same conditions as those mentioned above.
  • the springs 22 constitute simple and effective means of returning the pushers 5 to keep them in abutment against the cam 6 when the latter tends to move away from them, one could imagine other types return means, for example a mechanical connection between the cam 6 and the pusher 5.
  • FIG. 3 shows an alternative embodiment of the dispensing device according to which the drawer 4d is a simple dispensing drawer, the insertion of which is controlled by the direct mechanical thrust of the pusher 5; for this, the head 25d of the plunger linked to the drawer 4d is in abutment against the bottom of the blind bore 27 of the pusher 5.
  • a chamber 9c such as that shown in Figure 2 and just described.
  • the recess g is always formed by an annular peripheral clearance 40 provided at the end of the drawer 4d, the section of which is full.
  • This distribution drawer 4d has, in its central zone, a groove with flared walls 41 ensuring the desired communications during the movement of the drawer 4d.
  • the spring 22 ensures permanent contact of the pusher 5 with the cam 6 and helps to avoid impacts between these two parts.
  • the spring 19 maintains the neutral position when the manipulator is unlocked.
EP84400311A 1983-02-15 1984-02-15 Flüssigkeitsverteiler, insbesondere für Fernsteuerung Expired EP0117806B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84400311T ATE21148T1 (de) 1983-02-15 1984-02-15 Fluessigkeitsverteiler, insbesondere fuer fernsteuerung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8302397A FR2540959B1 (fr) 1983-02-15 1983-02-15 Dispositif distributeur de fluide, notamment pour telecommande
FR8302397 1983-02-15

Publications (2)

Publication Number Publication Date
EP0117806A1 true EP0117806A1 (de) 1984-09-05
EP0117806B1 EP0117806B1 (de) 1986-07-30

Family

ID=9285926

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84400311A Expired EP0117806B1 (de) 1983-02-15 1984-02-15 Flüssigkeitsverteiler, insbesondere für Fernsteuerung

Country Status (6)

Country Link
US (1) US4566492A (de)
EP (1) EP0117806B1 (de)
JP (1) JPS59164478A (de)
AT (1) ATE21148T1 (de)
DE (1) DE3460368D1 (de)
FR (1) FR2540959B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567698A1 (de) * 1992-04-29 1993-11-03 Kayaba Industry Co., Ltd. Eingangsglied
FR2709166A1 (fr) * 1993-08-17 1995-02-24 Kubota Kk Soupape pilote hydraulique.
EP0716235A3 (de) * 1994-11-10 1996-09-25 Kawasaki Heavy Ind Ltd Hydraulisch betätigbares Ventil

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140571U (ja) * 1984-08-20 1986-03-14 日本発条株式会社 空気バルブ
JPH0440051Y2 (de) * 1986-01-23 1992-09-18
US5507317A (en) * 1992-04-29 1996-04-16 Kayaba Industry Co., Ltd. Input apparatus
US5251534A (en) * 1992-04-29 1993-10-12 Kayaba Industry Co. Ltd. Input apparatus
AU6828294A (en) * 1993-05-06 1994-12-12 Cummins Engine Company Inc. Distributor for a high pressure fuel system
US5353766A (en) * 1993-09-08 1994-10-11 Cummins Engine Company, Inc. Distributor for a high pressure fuel system
DE69417846T2 (de) * 1993-05-06 1999-08-12 Cummins Engine Co Inc Kompakte kraftstoffanlage hoher leistung mit speicher
WO1996015374A1 (fr) * 1994-11-14 1996-05-23 Komatsu Ltd. Soupape hydraulique pilotee
DE19532942C1 (de) * 1995-09-07 1997-01-02 Skibowski Martin Verteilvorrichtung zum wahlweisen Verbinden von Leitungen eines ersten Leitungsfeldes mit Leitungen eines zweiten Leitungsfeldes
US5653420A (en) * 1995-11-13 1997-08-05 Ingersoll-Rand Company Locking control valve handle
JP3337121B2 (ja) * 1997-05-22 2002-10-21 川崎重工業株式会社 パイロット弁
FR2857488A1 (fr) * 2003-07-11 2005-01-14 Bosch Rexroth Dsi Sas Telecommande pour engins de travaux publics a poussoir suiveur
FR2857489B1 (fr) * 2003-07-11 2006-06-09 Bosch Rexroth Dsi Sas Telecommande pour engins de travaux publics a poussoir suiveur
FR2857706B1 (fr) * 2003-07-17 2007-05-04 Bosch Rexroth Dsi Sas Dispositif distributeur de fluide sous pression a double ressorts de regulation
CN100359188C (zh) * 2004-03-19 2008-01-02 王冠军 液压多路阀
DE102015216149A1 (de) 2015-08-25 2017-03-02 Robert Bosch Gmbh Hydraulische Steuervorrichtung mit variabler Rücklaufvorspannung
DE102015221713A1 (de) 2015-11-05 2017-05-11 Robert Bosch Gmbh Rohrbruchsicherung mit zwei hydraulischen Ansteuerungen
IT201600127801A1 (it) * 2016-12-16 2018-06-16 Walvoil Spa Servocomando idraulico ad area differenziale
KR102257572B1 (ko) * 2019-11-04 2021-05-31 (주)대현하이드로릭스 유압 원격 제어 밸브의 개선 된 레버 기구

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451162A (en) * 1943-12-08 1948-10-12 Bendix Westinghouse Automotive Valve mechanism
FR2237076A1 (en) * 1973-05-02 1975-02-07 Rexroth Sigma Hydraulic distributor valve for remote control - selects required outlet and controls delivery press. in outlet pipe
DE3216659A1 (de) * 1981-07-09 1983-01-27 Fiat Allis Europe S.p.A., 73014 Lecce Handbetaetigbare hydrauliksteuervorrichtung mit hydraulischer lagesperre

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820372A (en) * 1954-02-02 1958-01-21 Dewandre Co Ltd C Control valve for fluid pressure remote control systems
DE1939293A1 (de) * 1969-08-01 1971-02-11 Kracht Pumpen Motoren Druckregler
DE2152133B1 (de) * 1971-10-20 1973-02-22 Rexroth Gmbh G L Hydraulisch betaetigtes steuerventil
SE397390B (sv) * 1974-11-07 1977-10-31 Nordhydraulic Ab Anordning for hydraulisk styrning av centrerad flerleges riktningsventil
FR2376978A1 (fr) * 1977-01-06 1978-08-04 Rexroth Sigma Perfectionnements aux dispositifs distributeurs de fluide, notamment pour telecommande hydraulique
US4341243A (en) * 1980-06-16 1982-07-27 Caterpillar Tractor Co. Pressure reducing valve with floating stem for make-up vent
US4342335A (en) * 1980-10-23 1982-08-03 Koehring Company Hydraulic valve detent mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451162A (en) * 1943-12-08 1948-10-12 Bendix Westinghouse Automotive Valve mechanism
FR2237076A1 (en) * 1973-05-02 1975-02-07 Rexroth Sigma Hydraulic distributor valve for remote control - selects required outlet and controls delivery press. in outlet pipe
DE3216659A1 (de) * 1981-07-09 1983-01-27 Fiat Allis Europe S.p.A., 73014 Lecce Handbetaetigbare hydrauliksteuervorrichtung mit hydraulischer lagesperre

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567698A1 (de) * 1992-04-29 1993-11-03 Kayaba Industry Co., Ltd. Eingangsglied
FR2709166A1 (fr) * 1993-08-17 1995-02-24 Kubota Kk Soupape pilote hydraulique.
EP0716235A3 (de) * 1994-11-10 1996-09-25 Kawasaki Heavy Ind Ltd Hydraulisch betätigbares Ventil

Also Published As

Publication number Publication date
EP0117806B1 (de) 1986-07-30
DE3460368D1 (en) 1986-09-04
FR2540959A1 (fr) 1984-08-17
FR2540959B1 (fr) 1986-05-16
JPS59164478A (ja) 1984-09-17
US4566492A (en) 1986-01-28
ATE21148T1 (de) 1986-08-15

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