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ES417489A1 - Device for feeding a hydraulic load element mounted on a telescopic structure, by means of two jacks - Google Patents

Device for feeding a hydraulic load element mounted on a telescopic structure, by means of two jacks

Info

Publication number
ES417489A1
ES417489A1 ES417489A ES417489A ES417489A1 ES 417489 A1 ES417489 A1 ES 417489A1 ES 417489 A ES417489 A ES 417489A ES 417489 A ES417489 A ES 417489A ES 417489 A1 ES417489 A1 ES 417489A1
Authority
ES
Spain
Prior art keywords
jacks
feeding
element mounted
telescopic structure
load element
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
ES417489A
Other languages
Spanish (es)
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.)
Poclain SA
Original Assignee
Poclain 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 Poclain SA filed Critical Poclain SA
Publication of ES417489A1 publication Critical patent/ES417489A1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/306—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom with telescopic dipper-arm or boom
    • 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
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Actuator (AREA)
  • Earth Drilling (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Jib Cranes (AREA)

Abstract

A hydraulic drive telescopic boom is disclosed including two hydraulic piston-cylinder units connected between two telescopic boom sections and including fluid connections between the piston-cylinder units providing power transmission of hydraulic fluid from a pump to a load motor on the outer end of one boom section so as to substantially eliminate the need for flexible power conduits.
ES417489A 1972-08-02 1973-08-02 Device for feeding a hydraulic load element mounted on a telescopic structure, by means of two jacks Expired ES417489A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7227878A FR2194895B1 (en) 1972-08-02 1972-08-02

Publications (1)

Publication Number Publication Date
ES417489A1 true ES417489A1 (en) 1976-03-01

Family

ID=9102759

Family Applications (1)

Application Number Title Priority Date Filing Date
ES417489A Expired ES417489A1 (en) 1972-08-02 1973-08-02 Device for feeding a hydraulic load element mounted on a telescopic structure, by means of two jacks

Country Status (10)

Country Link
US (1) US3858396A (en)
JP (1) JPS4958607A (en)
AR (1) AR196446A1 (en)
BE (1) BE802167A (en)
BR (1) BR7305739D0 (en)
DE (1) DE2339292A1 (en)
ES (1) ES417489A1 (en)
FR (1) FR2194895B1 (en)
GB (1) GB1402214A (en)
IT (1) IT991932B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294572A (en) * 1978-04-10 1981-10-13 Pattison Jack E Internal fluid communication system for power cylinders
US5638616A (en) * 1994-12-21 1997-06-17 Nikken Corporation Oil supply mechanism in a deep excavator
DE29722394U1 (en) * 1997-12-18 1999-04-22 Oberniehaus, Rainer, 49326 Melle Implement
US20110126700A1 (en) * 2007-07-12 2011-06-02 Johannsen Thorkil J Undercarriage for a telescopic frame
JP4945681B1 (en) * 2010-11-24 2012-06-06 株式会社コスメック Cylinder device with booster mechanism
ES2457238T3 (en) * 2011-09-07 2014-04-25 Epsilon Kran Gmbh. Telescopic crane arm
US9541194B2 (en) * 2012-02-16 2017-01-10 Kosmek Ltd. Cylinder device with force multiplier

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3160076A (en) * 1961-12-14 1964-12-08 Parker Hannifin Corp Fluid system and relief valve assembly therefor
US3481251A (en) * 1968-02-05 1969-12-02 Warner Swasey Co Machine with hydraulic boom

Also Published As

Publication number Publication date
US3858396A (en) 1975-01-07
FR2194895A1 (en) 1974-03-01
BE802167A (en) 1973-11-05
AR196446A1 (en) 1973-12-27
BR7305739D0 (en) 1974-08-29
FR2194895B1 (en) 1976-05-14
JPS4958607A (en) 1974-06-06
GB1402214A (en) 1975-08-06
DE2339292A1 (en) 1974-02-21
IT991932B (en) 1975-08-30

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