FR2380218A1 - Dispositif hydraulique de levage - Google Patents
Dispositif hydraulique de levageInfo
- Publication number
- FR2380218A1 FR2380218A1 FR7803536A FR7803536A FR2380218A1 FR 2380218 A1 FR2380218 A1 FR 2380218A1 FR 7803536 A FR7803536 A FR 7803536A FR 7803536 A FR7803536 A FR 7803536A FR 2380218 A1 FR2380218 A1 FR 2380218A1
- Authority
- FR
- France
- Prior art keywords
- unit
- primary
- valve
- lifting device
- hydraulic lifting
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement
-
- 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
- F15B11/22—Synchronisation of the movement of two or more servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
Dispositif dans lequel les côtés primaire et secondaire de chaque vérin sont reliés par une soupape qui s'ouvre automatiquement à la fin de chaque course du piston. Les vérins 11 à 13 comportent des pistons 14 à 16, des cylindres 17 à 19, des chambres primaires 20 à 22, des chambres secondaires 23 à 25, des tiges de piston 26 à 28, celles-ci pouvant être reliées en commun à une charge à lever 29. La chambre 20 est reliée au refoulement de la pompe 34, la chambre 23 est reliée à la chambre 21, la chambre 24 à la chambre 22 et la chambre 25 au réservoir 35. Chaque piston comporte une soupape antiretour 39 à 41 qui s'ouvre automatiquement à la fin de la course du piston.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH159677 | 1977-02-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2380218A1 true FR2380218A1 (fr) | 1978-09-08 |
Family
ID=4214118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7803536A Withdrawn FR2380218A1 (fr) | 1977-02-10 | 1978-02-08 | Dispositif hydraulique de levage |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT356328B (fr) |
DE (1) | DE2805455A1 (fr) |
FR (1) | FR2380218A1 (fr) |
IT (1) | IT1091993B (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0211137A2 (fr) * | 1985-05-31 | 1987-02-25 | Krupp Polysius Ag | Dispositif d'entraînement |
FR2608142A1 (fr) * | 1986-12-16 | 1988-06-17 | Ouest Hydraulique Mecanique | Dispositif hydraulique de monte et baisse d'une poutre ou d'une plate-forme parallelement a un plan de reference |
EP0559474A1 (fr) * | 1992-03-06 | 1993-09-08 | Monarch Hydraulics, Inc. | Bureau avec remise à niveau automatique et circuit hydraulique pour sa mise en oeuvre |
WO1993020354A1 (fr) * | 1992-03-30 | 1993-10-14 | Sjoerd Meijer | Dispositif hydraulique a verins synchronises |
US20150144853A1 (en) * | 2013-11-27 | 2015-05-28 | Otto Nussbaum Gmbh & Co. Kg | Lift apparatus for lifting heavy loads |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3439292A1 (de) * | 1984-10-26 | 1986-05-07 | Otto Nußbaum GmbH & Co KG, 7640 Kehl | Hydraulisch betaetigte hubvorrichtung, insbesondere hebebuehne fuer kraftfahrzeuge |
SE503071C2 (sv) * | 1994-07-04 | 1996-03-18 | Kvaerner Pulping Tech | Kontinuerlig diffusör för massatvätt innefattande i ring fördelade hydraulcylindrar |
DE102011005120A1 (de) * | 2011-03-04 | 2012-09-06 | Bayerische Motoren Werke Aktiengesellschaft | Fahrschienenhebebühne für Kraftfahrzeuge |
DE102018118261B4 (de) | 2018-07-27 | 2022-08-11 | HAWE Altenstadt Holding GmbH | Fahrerloses Transportsystem |
-
1978
- 1978-01-27 IT IT19722/78A patent/IT1091993B/it active
- 1978-02-08 FR FR7803536A patent/FR2380218A1/fr not_active Withdrawn
- 1978-02-09 DE DE19782805455 patent/DE2805455A1/de active Pending
- 1978-02-10 AT AT97578A patent/AT356328B/de not_active IP Right Cessation
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0211137A2 (fr) * | 1985-05-31 | 1987-02-25 | Krupp Polysius Ag | Dispositif d'entraînement |
EP0211137A3 (fr) * | 1985-05-31 | 1987-06-03 | Krupp Polysius Ag | Dispositif d'entraínement |
FR2608142A1 (fr) * | 1986-12-16 | 1988-06-17 | Ouest Hydraulique Mecanique | Dispositif hydraulique de monte et baisse d'une poutre ou d'une plate-forme parallelement a un plan de reference |
EP0559474A1 (fr) * | 1992-03-06 | 1993-09-08 | Monarch Hydraulics, Inc. | Bureau avec remise à niveau automatique et circuit hydraulique pour sa mise en oeuvre |
US5320047A (en) * | 1992-03-06 | 1994-06-14 | Monarch Hydraulics, Inc. | Desk having self-releveling height adjustment and hydraulic circuit therefor |
WO1993020354A1 (fr) * | 1992-03-30 | 1993-10-14 | Sjoerd Meijer | Dispositif hydraulique a verins synchronises |
US20150144853A1 (en) * | 2013-11-27 | 2015-05-28 | Otto Nussbaum Gmbh & Co. Kg | Lift apparatus for lifting heavy loads |
US9919905B2 (en) * | 2013-11-27 | 2018-03-20 | Otto Nussbaum Gmbh & Co. Kg | Lift apparatus for lifting heavy loads |
Also Published As
Publication number | Publication date |
---|---|
ATA97578A (de) | 1979-09-15 |
IT1091993B (it) | 1985-07-06 |
IT7819722A0 (it) | 1978-01-27 |
DE2805455A1 (de) | 1978-08-17 |
AT356328B (de) | 1980-04-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |