ES423718A1 - Public works machine having a safety device for the manoeuvre of its working equipment - Google Patents

Public works machine having a safety device for the manoeuvre of its working equipment

Info

Publication number
ES423718A1
ES423718A1 ES423718A ES423718A ES423718A1 ES 423718 A1 ES423718 A1 ES 423718A1 ES 423718 A ES423718 A ES 423718A ES 423718 A ES423718 A ES 423718A ES 423718 A1 ES423718 A1 ES 423718A1
Authority
ES
Spain
Prior art keywords
manoeuvre
safety device
working equipment
public works
works machine
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
ES423718A
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 ES423718A1 publication Critical patent/ES423718A1/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
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • E02F3/436—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like for keeping the dipper in the horizontal position, e.g. self-levelling
    • 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
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E02F3/432—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude
    • E02F3/433—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude horizontal, e.g. self-levelling
    • 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems

Abstract

A loader having a body on which is pivotally mounted a jib system and a bucket and which is operated by fluid motor means is provided with a discharge conduit extending from the bucket raising side of one of the fluid motor means and control valve means to open the conduit to fluid flow whereby movement of the bucket over the loader cab is prevented.
ES423718A 1973-03-09 1974-02-28 Public works machine having a safety device for the manoeuvre of its working equipment Expired ES423718A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7308621A FR2220630B1 (en) 1973-03-09 1973-03-09

Publications (1)

Publication Number Publication Date
ES423718A1 true ES423718A1 (en) 1976-05-01

Family

ID=9116092

Family Applications (1)

Application Number Title Priority Date Filing Date
ES423718A Expired ES423718A1 (en) 1973-03-09 1974-02-28 Public works machine having a safety device for the manoeuvre of its working equipment

Country Status (10)

Country Link
US (1) US3905500A (en)
JP (1) JPS578252B2 (en)
AR (1) AR202706A1 (en)
BE (1) BE810335A (en)
BR (1) BR7401504D0 (en)
DE (1) DE2411051C2 (en)
ES (1) ES423718A1 (en)
FR (1) FR2220630B1 (en)
GB (1) GB1462073A (en)
IT (1) IT1009251B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819825B2 (en) * 1975-08-29 1983-04-20 株式会社クボタ Shovel loader Tenboushisouchi
JPS5541872Y2 (en) * 1977-09-19 1980-10-01
US4354797A (en) * 1979-05-31 1982-10-19 Hitachi Construction Machinery Co., Ltd. Front loading hydraulic excavator
FR2472633A1 (en) * 1979-05-31 1981-07-03 Hitachi Construction Machinery Compact excavator scoop movement control - involves two leads feeding different control pressures to valve unit holes
US4459079A (en) * 1979-07-23 1984-07-10 Sperry Corporation Unloading auger control system
US4355477A (en) * 1980-03-24 1982-10-26 Aktiebolaget P. E. Holmgren Working machine with improved jib section
US4353289A (en) * 1980-05-29 1982-10-12 Sperry Corporation Power transmission
DE4001681C1 (en) * 1990-01-22 1990-12-20 Wirth Maschinen- Und Bohrgeraete-Fabrik Gmbh, 5140 Erkelenz, De
DE10000771C2 (en) * 2000-01-11 2003-06-12 Brueninghaus Hydromatik Gmbh Device and method for position control for work equipment of mobile work machines
FR2817574B1 (en) * 2000-12-04 2003-10-10 Faucheux Ind Soc FRONT LOADER FOR CARRIER
DE10221551A1 (en) * 2002-05-14 2003-12-04 Botschafter Knopff Ilse Control device for a work tool with a parallel guide
WO2014149125A1 (en) * 2013-03-15 2014-09-25 Rodney Koch Lift arm structure with an articulated knee portion for a power machine
CA2947879A1 (en) 2014-05-08 2015-11-12 Quanta Associates, L.P. Rotating conductor holder

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035710A (en) * 1958-06-11 1962-05-22 Hydrostahlbau Ges Wiese & Co Hydraulic whip drive for the overhang beam of a crane
FR1303355A (en) * 1960-10-11 1962-09-07 Massey Ferguson Inc Backhoe loader
US3155252A (en) * 1963-06-07 1964-11-03 Caterpillar Tractor Co Adjustable valve control mechanism for tractor mounted loaders
US3400634A (en) * 1966-10-21 1968-09-10 Caterpillar Tractor Co Vent means for hydraulic circuit
US3429471A (en) * 1967-09-08 1969-02-25 Caterpillar Tractor Co Bucket positioning kick-out controls for bucket loaders
US3522897A (en) * 1968-05-28 1970-08-04 Caterpillar Tractor Co Kickout control for bucket loaders
FR1588568A (en) * 1968-09-16 1970-04-17
US3568869A (en) * 1969-01-09 1971-03-09 Case Co J I Antirollback mechanism
US3642159A (en) * 1970-08-19 1972-02-15 Massey Ferguson Inc Earthworking vehicle
US3670628A (en) * 1970-09-02 1972-06-20 Caterpillar Tractor Co Kickout valve and circuit

Also Published As

Publication number Publication date
JPS578252B2 (en) 1982-02-16
JPS49120403A (en) 1974-11-18
BR7401504D0 (en) 1974-12-03
FR2220630B1 (en) 1975-08-22
BE810335A (en) 1974-05-16
US3905500A (en) 1975-09-16
GB1462073A (en) 1977-01-19
DE2411051C2 (en) 1984-03-01
IT1009251B (en) 1976-12-10
DE2411051A1 (en) 1974-09-26
FR2220630A1 (en) 1974-10-04
AR202706A1 (en) 1975-07-15

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