[go: up one dir, main page]

FR2362297A1 - ADVANCED TELESCOPIC DEVICES - Google Patents

ADVANCED TELESCOPIC DEVICES

Info

Publication number
FR2362297A1
FR2362297A1 FR7725302A FR7725302A FR2362297A1 FR 2362297 A1 FR2362297 A1 FR 2362297A1 FR 7725302 A FR7725302 A FR 7725302A FR 7725302 A FR7725302 A FR 7725302A FR 2362297 A1 FR2362297 A1 FR 2362297A1
Authority
FR
France
Prior art keywords
rings
stop rings
elements
stop
carry
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
FR7725302A
Other languages
French (fr)
Other versions
FR2362297B1 (en
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.)
Telehoist Ltd
Original Assignee
Telehoist Ltd
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 Telehoist Ltd filed Critical Telehoist Ltd
Publication of FR2362297A1 publication Critical patent/FR2362297A1/en
Application granted granted Critical
Publication of FR2362297B1 publication Critical patent/FR2362297B1/fr
Granted legal-status Critical Current

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
    • 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
    • B66F3/26—Adaptations or arrangements of pistons
    • B66F3/28—Adaptations or arrangements of pistons telescopic
    • 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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)
  • Joints Allowing Movement (AREA)
  • Clamps And Clips (AREA)
  • Actuator (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

Dispositif télescopique pour vérin avec bagues d'arrêt Les surfaces cylindriques des éléments télescopiques portent des bagues d'arrêt dont les bords, venant en contact lors de l'extension, sont chanfreinés. Des éléments supports sont disposés entre les éléments coulissants pour maintenir les bagues d'arrêt écartées des surfaces de l'élement coulissant lui faisant face. Ces bagues sont fendues selon leur axe et portent de chaque côté de la fente des crans permettant l'utilisation d'un outil de pose. Les chocs se produisant lorsque les bagues d'arrêt viennent en contact, sont absorbés par l'extension d'une des bagues et la contraction de l'autre. Applications au vérin hydraulique à deux ou plusieurs éléments.Telescopic device for cylinder with stop rings The cylindrical surfaces of the telescopic elements carry stop rings whose edges, coming into contact during extension, are chamfered. Support elements are disposed between the sliding elements to keep the stop rings away from the surfaces of the sliding element facing it. These rings are split along their axis and carry notches on each side of the slot allowing the use of a setting tool. The shocks produced when the stop rings come into contact are absorbed by the extension of one of the rings and the contraction of the other. Two or more element hydraulic cylinder applications.

FR7725302A 1976-08-20 1977-08-18 ADVANCED TELESCOPIC DEVICES Granted FR2362297A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34699/76A GB1590773A (en) 1976-08-20 1976-08-20 Telescoping mechanisms

Publications (2)

Publication Number Publication Date
FR2362297A1 true FR2362297A1 (en) 1978-03-17
FR2362297B1 FR2362297B1 (en) 1984-07-13

Family

ID=10368871

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725302A Granted FR2362297A1 (en) 1976-08-20 1977-08-18 ADVANCED TELESCOPIC DEVICES

Country Status (8)

Country Link
BE (1) BE857940A (en)
CA (1) CA1057164A (en)
DE (1) DE2649524C2 (en)
FR (1) FR2362297A1 (en)
GB (1) GB1590773A (en)
IN (1) IN149177B (en)
NL (1) NL185863C (en)
ZA (1) ZA774798B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012582A1 (en) * 1978-12-18 1980-06-25 Edbro Limited A single acting, multi-stage hydraulic ram

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127914Y2 (en) * 1981-05-11 1986-08-19
JPS5895984U (en) * 1981-12-22 1983-06-29 株式会社マサダ製作所 oil jack
DE4011119A1 (en) * 1990-04-06 1991-10-10 Walter Neumeister PISTON CYLINDER AGGREGATE
SE0001448L (en) * 2000-04-19 2001-10-20 Svenska Kenab Karlshamns Ergon Telescope tubes and ways of making this
EP2466156A1 (en) * 2010-12-16 2012-06-20 Hyva Holding BV Telescopic hydraulic cylinder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB655341A (en) * 1946-04-18 1951-07-18 Gratzmuller Jean Louis Improvements in or relating to hydraulic jacks
GB771282A (en) * 1954-08-07 1957-03-27 Sogeni Societa Generale Per L Hydraulic telescopic hoisting apparatus
DE1107383B (en) * 1957-05-29 1961-05-25 Rheinstahl Siegener Eisenbahnb Double-acting, multi-stage telescopic lifting ram
US3468398A (en) * 1968-01-08 1969-09-23 Galloway Co G W Multistage linear motor with means for locking the stages thereof against relative rotary movement
DE2004117A1 (en) * 1969-02-14 1970-09-03 Nummi Oy Arrangement on a telescopic cylinder
FR2290613A2 (en) * 1974-11-08 1976-06-04 Protomatic Drawn tubes for telescopic jacks - have guide rings inserted avoiding machine finishing of tube interior

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854958A (en) * 1955-04-15 1958-10-07 Perfection Steel Body Company Telescopic cylinder assembly
DE2319344A1 (en) * 1973-04-17 1974-11-07 Jungheinrich & Co Maschf DOUBLE-ACTING TELESCOPIC CYLINDER PISTON DEVICE
DE2442731A1 (en) * 1974-09-06 1976-03-18 Bosch Gmbh Robert Working cylinder with plunger-shaped piston rod - incorporates sealing arrangement between guide rings

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB655341A (en) * 1946-04-18 1951-07-18 Gratzmuller Jean Louis Improvements in or relating to hydraulic jacks
GB771282A (en) * 1954-08-07 1957-03-27 Sogeni Societa Generale Per L Hydraulic telescopic hoisting apparatus
DE1107383B (en) * 1957-05-29 1961-05-25 Rheinstahl Siegener Eisenbahnb Double-acting, multi-stage telescopic lifting ram
US3468398A (en) * 1968-01-08 1969-09-23 Galloway Co G W Multistage linear motor with means for locking the stages thereof against relative rotary movement
DE2004117A1 (en) * 1969-02-14 1970-09-03 Nummi Oy Arrangement on a telescopic cylinder
FR2290613A2 (en) * 1974-11-08 1976-06-04 Protomatic Drawn tubes for telescopic jacks - have guide rings inserted avoiding machine finishing of tube interior

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012582A1 (en) * 1978-12-18 1980-06-25 Edbro Limited A single acting, multi-stage hydraulic ram

Also Published As

Publication number Publication date
NL185863C (en) 1990-08-01
FR2362297B1 (en) 1984-07-13
BE857940A (en) 1977-12-16
CA1057164A (en) 1979-06-26
IN149177B (en) 1981-10-03
GB1590773A (en) 1981-06-10
ZA774798B (en) 1978-09-27
NL7709054A (en) 1978-02-22
DE2649524C2 (en) 1983-01-20
NL185863B (en) 1990-03-01
DE2649524A1 (en) 1978-02-23

Similar Documents

Publication Publication Date Title
FR2364349A1 (en) IMPROVEMENT OF ADJUSTMENT AND LOCKING DEVICES
NO912304L (en) PROCEDURE AND DEVICE FOR AA SEPARATE A CONTINUOUS FLUID PHASE AND A DISPERSED PHASE, AS USED.
FR2666858B2 (en) IMPROVEMENTS IN HYDRAULIC ANTI-VIBRATION DEVICES.
FR2679156B1 (en) A VARIABLE MOMENT THAT CAN BE USED IN PARTICULAR FOR Sinking objects into the ground.
IT1065290B (en) TOOL FOR TENSIONING A CLAMP, WITH A HANDLE SUITABLE FOR PERCEIVING A LOAD
FR2362297A1 (en) ADVANCED TELESCOPIC DEVICES
NL7700735A (en) TOOL CLAMPING DEVICE.
FR2403174A1 (en) KNIFE DRUM FOR CROSS-CUTTING DEVICES
IT8025096A0 (en) ANTI-PUMPING VALVE FOR HYDRAULIC LOCKING DEVICE.
DE69003049D1 (en) Anti-glare device that can be adjusted via a middle layer.
DE2861028D1 (en) Means for moving on land and/or on a beach that is underwater or not, heavy loads
AT364621B (en) PISTON CYLINDER FOR MACHINES, PNEUMATIC AND HYDRAULIC DEVICES OR THE LIKE.
ES226138Y (en) TIGHTENING FORCE LIMITING DEVICE.
DK148102C (en) MACHINE FOR COMPRESSING EARTH, ASPHALT AND SIMILAR MATERIALS
BE781627A (en) TORQUE LOAD DEVICES WITH A CHANNEL IN THE
FR1477857A (en) Device for blocking tracked vehicles, in particular excavators and the like
FR2340575A1 (en) DEVICE FOR CONTROLLING A MOBILE DRIVE MEANS IN LONGITUDINAL DIRECTION, ESPECIALLY OF THE PISTON AND CYLINDER TYPE
FR2672948B1 (en) IMPROVEMENTS IN HYDRAULIC ANTI-VIBRATION DEVICES.
BE880651A (en) IMPROVEMENTS ON DEVICES FOR HANDLING SHUTTERS, BLINDS, AND THE LIKE
ES1009069Y (en) AUXILIARY HANDLE FOR BAGS AND THE LIKE.
FR2690961B1 (en) IMPROVEMENTS IN HYDRAULIC ANTI-VIBRATION DEVICES.
YU118377A (en) Grip device for draw-circulation conveyers with auxiliary rings
FR2640466B1 (en) IMPROVEMENT IN DEVICES FOR PUSHING THE PILES INTO THE GROUND
ES223048Y (en) PERFECTED ADJUSTABLE LINKING DEVICE, BETWEEN A CE-PILLO AND ITS HANDLE.
MCWHORTER Solid state research 1972: 3(Solid state research at Lincoln Laboratory)[Quarterly Technical Summary, 1 May- 31 Jul. 1972]

Legal Events

Date Code Title Description
ST Notification of lapse