[go: up one dir, main page]

GB1326039A - Hydraulic jack - Google Patents

Hydraulic jack

Info

Publication number
GB1326039A
GB1326039A GB4886970A GB4886970A GB1326039A GB 1326039 A GB1326039 A GB 1326039A GB 4886970 A GB4886970 A GB 4886970A GB 4886970 A GB4886970 A GB 4886970A GB 1326039 A GB1326039 A GB 1326039A
Authority
GB
United Kingdom
Prior art keywords
valve
jack
open
conduit
valves
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
Application number
GB4886970A
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.)
Matairco SA
Original Assignee
Matairco 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
Priority claimed from FR6935304A external-priority patent/FR2024709A5/fr
Application filed by Matairco SA filed Critical Matairco SA
Publication of GB1326039A publication Critical patent/GB1326039A/en
Expired legal-status Critical Current

Links

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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/18—Combined units comprising both motor and pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
    • B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
    • B62D33/07—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable characterised by the device for locking the cab in the tilted or in the driving position
    • 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
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
    • 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
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • 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
    • F15B2211/20507—Type of prime mover
    • 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
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3138—Directional control characterised by the positions of the valve element the positions being discrete
    • 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
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • 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
    • F15B2211/329—Directional 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7052—Single-acting output 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/863—Control during or prevention of abnormal conditions the abnormal condition being a hydraulic or pneumatic failure
    • F15B2211/8636—Circuit failure, e.g. valve or hose failure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Actuator (AREA)

Abstract

1326039 Jacks MATAIRO S A 14 Oct 1970 [15 Oct 1969 9 Oct 1970] 48869/70 Heading F1P An hydraulic jack 1 is controlled by a pump 3 which communicates therewith via valves 5, 6, and 10, a conduit 11 and a non-return valve 12, a conduit 8 connecting the pump to the smaller area side of a differential piston valve 9 having a projection for holding valve 12 open. Valves 10, 13 work in sympathy through a piece 15 such that when one is closed the other is open, these being controlled by a screw 4. To expand the jack 1, screw 4 renders valves 10, 13 open and closed respectively. Pump 3 delivers fluid to both sides of valve 9 so that it moves downwardly and valve 12 is held open by fluid pressure which thus expands the jack 1. To contract the jack the screw 4 is moved so that the valves 10, 13 are closed and open respectively. The valve 9 only experiences pressure on its lower side and thus moves upwardly to hold the valve 12 open. Fluid can thus flow from the jack via conduit 11 and valve 13 to a reservoir 14 thus contracting the jack 1. A double-acting piston-and-cylinder jack is described with reference to Fig. 3 (not shown), in which a branch conduit from the conduit 8 is connected to the opposite side of the piston from the valve 12. In a further doubleacting type a non-return valve and associated actuator are located in the branch conduit, Figs. 4 to 10 (not shown), the jack being used for the tipper cab of a lorry.
GB4886970A 1969-10-15 1970-10-14 Hydraulic jack Expired GB1326039A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR6935304A FR2024709A5 (en) 1969-10-15 1969-10-15
FR7036680A FR2068323A6 (en) 1969-10-15 1970-10-09

Publications (1)

Publication Number Publication Date
GB1326039A true GB1326039A (en) 1973-08-08

Family

ID=26215315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4886970A Expired GB1326039A (en) 1969-10-15 1970-10-14 Hydraulic jack

Country Status (6)

Country Link
JP (1) JPS5039902B1 (en)
DE (1) DE2050761C2 (en)
FR (1) FR2068323A6 (en)
GB (1) GB1326039A (en)
NL (1) NL7015103A (en)
SE (1) SE365290B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1098123A1 (en) * 1999-11-08 2001-05-09 Meccanica Fadini s.n.c. di Fadini Luigi, Gaetano e Carlo Hydraulic actuator
CN112984199A (en) * 2021-02-05 2021-06-18 高建武 Equipment for generating pressure by liquid or gas by using jack

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641216C2 (en) * 1976-09-14 1982-09-02 Montan - Hydraulik GmbH & Co KG, 4755 Holzwickede Multi-stage hydraulic telescopic cylinder
SE8103234L (en) * 1980-07-02 1982-01-03 Weber Oelhydraulik HYDRAULIC DEVICE FOR SUPPLYING DRIVER'S CABINS
DE102012111021B4 (en) * 2012-11-15 2014-08-21 Eto Magnetic Gmbh Valve device and use of such
DE102018133430A1 (en) * 2018-12-21 2020-06-25 Man Truck & Bus Se Multifunction jack

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE644545C (en) * 1934-10-09 1937-05-07 George Herbert Dowty Locking lock for hydraulic pressure systems with reversible flow direction
GB603795A (en) * 1945-09-13 1948-06-23 Electroflo Meters Co Ltd Improvements in or relating to hydraulic or pneumatic servomotor systems
US2618121A (en) * 1949-11-07 1952-11-18 Hpm Dev Corp Locking control circuit for fluid-actuated motors
FR1210926A (en) * 1957-10-11 1960-03-11 Charmilles Sa Ateliers Electrically operated hydraulic servo-mechanism
US3074384A (en) * 1959-07-08 1963-01-22 John S Pilch Pilot-operated ball check valve in cylinder head
US3472547A (en) * 1966-06-13 1969-10-14 Applied Power Ind Inc Safety tilt system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1098123A1 (en) * 1999-11-08 2001-05-09 Meccanica Fadini s.n.c. di Fadini Luigi, Gaetano e Carlo Hydraulic actuator
CN112984199A (en) * 2021-02-05 2021-06-18 高建武 Equipment for generating pressure by liquid or gas by using jack

Also Published As

Publication number Publication date
NL7015103A (en) 1971-04-19
JPS5039902B1 (en) 1975-12-20
DE2050761A1 (en) 1971-05-27
FR2068323A6 (en) 1971-08-20
DE2050761C2 (en) 1983-08-18
SE365290B (en) 1974-03-18

Similar Documents

Publication Publication Date Title
US4361075A (en) Unlockable check valve, particularly for use as recovery and setting valve in underground mining
GB1380371A (en) Machine having a telescopic boom
GB1469918A (en) Fast exhaust circuit for hydraulic jacks
GB987078A (en)
ES406648A1 (en) Shock absorbers
GB912003A (en) Hydraulic mechanism
GB959872A (en) Hydraulic circuit for a tractor drawn implement
GB1326039A (en) Hydraulic jack
GB1212072A (en) Hydraulic control circuits
SE7601860L (en) ELECTROHYDRAULIC CONTROLLER
GB1372659A (en) Hydraulic control systems
GB1173247A (en) Steering System for Vehicles
GB1115725A (en) Hydraulic cushion for dies
NL256189A (en)
GB1057752A (en) Control system for hydraulically operated equipment such as excavators
GB1368936A (en) Hydraulic control systems
GB1421037A (en) Valve assembly
GB1160907A (en) Hydraulic System
GB1426358A (en) Hydraulic self-levelling device for a boom-mounted bucket
GB1425787A (en) Mobile vehilces having hydraulically actuable braking systems
GB1347264A (en) Valve actuator operated by pressurised fluid
GB1383884A (en) Hydraulic cylinder device for lifting and lowering a pivotable drivers cab
GB1437199A (en) Hydraulic control circuit
GB909906A (en) Hydraulic control system for variable displacement pump
GB1233188A (en)

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years