FR2304726A1 - Hydraulic excavator with exchangeable tool - uses hydraulic rapid coupling using two pairs of pins and electromagnetic valve - Google Patents

Hydraulic excavator with exchangeable tool - uses hydraulic rapid coupling using two pairs of pins and electromagnetic valve

Info

Publication number
FR2304726A1
FR2304726A1 FR7607815A FR7607815A FR2304726A1 FR 2304726 A1 FR2304726 A1 FR 2304726A1 FR 7607815 A FR7607815 A FR 7607815A FR 7607815 A FR7607815 A FR 7607815A FR 2304726 A1 FR2304726 A1 FR 2304726A1
Authority
FR
France
Prior art keywords
pins
pairs
tool
rapid coupling
hydraulic
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
FR7607815A
Other languages
French (fr)
Other versions
FR2304726B1 (en
Inventor
Rolf Mieger
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.)
Liebherr Hydraulikbagger GmbH
Original Assignee
Liebherr Hydraulikbagger GmbH
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 Liebherr Hydraulikbagger GmbH filed Critical Liebherr Hydraulikbagger GmbH
Publication of FR2304726A1 publication Critical patent/FR2304726A1/en
Application granted granted Critical
Publication of FR2304726B1 publication Critical patent/FR2304726B1/fr
Granted 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3636—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using two or four movable transversal pins
    • 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
    • E02F3/32—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 working downwardly and towards the machine, e.g. with backhoes
    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
    • 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
    • E02F3/425—Drive systems for dipper-arms, backhoes or the like

Abstract

The excavator has a hydraulically actuated rapid coupling at the outrigger (8), with two pairs of pins, which may be moved into engagement with the tool (11) concerned. The pins may be adjusted to the associated retainers of each tool. The excavator outrigger also carries a hydraulic working cylinder to actuate the tool concerned. The rapid coupling is connected to the pressure medium conduit of the working cylinder (13) via an electro magnetic valve. The coupling has two hydraulic working cylinders, connected to the pins via rods, and positioned symmetrical to the associated pins. Each cylinder engages on an axially displaceable piston connected via two flaps to a pin of the associated pair.
FR7607815A 1975-03-18 1976-03-18 Hydraulic excavator with exchangeable tool - uses hydraulic rapid coupling using two pairs of pins and electromagnetic valve Granted FR2304726A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752511819 DE2511819C3 (en) 1975-03-18 1975-03-18 Hydraulic excavator

Publications (2)

Publication Number Publication Date
FR2304726A1 true FR2304726A1 (en) 1976-10-15
FR2304726B1 FR2304726B1 (en) 1982-11-05

Family

ID=5941701

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7607815A Granted FR2304726A1 (en) 1975-03-18 1976-03-18 Hydraulic excavator with exchangeable tool - uses hydraulic rapid coupling using two pairs of pins and electromagnetic valve

Country Status (2)

Country Link
DE (1) DE2511819C3 (en)
FR (1) FR2304726A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003198A1 (en) * 1986-10-28 1988-05-05 Drazil, Jaromir, Vaclav Connector
EP0448788A1 (en) * 1990-03-30 1991-10-02 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Quick coupling device for an excavator
EP0468771A1 (en) * 1990-07-25 1992-01-29 Japanic Corporation A construction machine accessory coupling mechanism
EP0671512A2 (en) * 1994-03-12 1995-09-13 O&K ORENSTEIN & KOPPEL AG Hydraulic locking device for quick couplings in construction machines
EP0943738A1 (en) * 1998-03-18 1999-09-22 Mailleux S.A. Hydraulic interlock system for a loader tool
EP1057941A2 (en) * 1999-05-11 2000-12-06 Daemo Engineering Co., Ltd. A coupling apparatus for detachably attaching an excavating device to excavator
FR2822482A1 (en) * 2001-03-22 2002-09-27 Jean Pierre Dorguin Accessory fitting and release system for contruction or demolition machine jib has extending/retracting axles operated by cranked hand tool
WO2004067855A1 (en) * 2003-01-30 2004-08-12 Oilquick Ab Tool holder with hydraulic coupling means
EP3620580A1 (en) * 2018-09-06 2020-03-11 Takeuchi Mfg. Co., Ltd. Working device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2901923C2 (en) * 1979-01-18 1980-10-16 Liebherr-Hydraulikbagger Gmbh, 7951 Kirchdorf Hydraulic locking of the laying out on the swing arm of an excavator, crane or the like
JPS6014817Y2 (en) * 1979-04-18 1985-05-11 株式会社小松製作所 excavation loader excavation loading equipment
US4295287A (en) * 1980-04-10 1981-10-20 J. I. Case Company Backhoe bucket quick coupler
US5382110A (en) * 1992-12-30 1995-01-17 Esco Corporation Quick coupling device
DE29909329U1 (en) 1999-05-28 1999-08-12 Liebherr Hydraulikbagger Quick coupling for excavator tools

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003198A1 (en) * 1986-10-28 1988-05-05 Drazil, Jaromir, Vaclav Connector
AU593693B2 (en) * 1986-10-28 1990-02-15 Drazil, Jaromir Vaclav Bucket to excavator connection
US4955779A (en) * 1986-10-28 1990-09-11 Jaromir Vaclav Drazil Connector
EP0448788A1 (en) * 1990-03-30 1991-10-02 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Quick coupling device for an excavator
US5125788A (en) * 1990-03-30 1992-06-30 Dr. Ing. H.C.F. Porsche Ag Quick-change system
EP0468771A1 (en) * 1990-07-25 1992-01-29 Japanic Corporation A construction machine accessory coupling mechanism
EP0671512A2 (en) * 1994-03-12 1995-09-13 O&K ORENSTEIN & KOPPEL AG Hydraulic locking device for quick couplings in construction machines
EP0671512A3 (en) * 1994-03-12 1996-04-24 Orenstein & Koppel Ag Hydraulic locking device for quick couplings in construction machines.
EP0943738A1 (en) * 1998-03-18 1999-09-22 Mailleux S.A. Hydraulic interlock system for a loader tool
FR2776316A1 (en) * 1998-03-18 1999-09-24 Mailleux Sa HYDRAULIC LOCKING SYSTEM OF A LOADER TOOL
EP1057941A2 (en) * 1999-05-11 2000-12-06 Daemo Engineering Co., Ltd. A coupling apparatus for detachably attaching an excavating device to excavator
EP1057941A3 (en) * 1999-05-11 2001-01-03 Daemo Engineering Co., Ltd. A coupling apparatus for detachably attaching an excavating device to excavator
FR2822482A1 (en) * 2001-03-22 2002-09-27 Jean Pierre Dorguin Accessory fitting and release system for contruction or demolition machine jib has extending/retracting axles operated by cranked hand tool
WO2004067855A1 (en) * 2003-01-30 2004-08-12 Oilquick Ab Tool holder with hydraulic coupling means
US7654787B2 (en) 2003-01-30 2010-02-02 Oilquick Ab Tool holder with hydraulic coupling means
EP3620580A1 (en) * 2018-09-06 2020-03-11 Takeuchi Mfg. Co., Ltd. Working device

Also Published As

Publication number Publication date
DE2511819A1 (en) 1976-09-30
DE2511819B2 (en) 1978-02-16
FR2304726B1 (en) 1982-11-05
DE2511819C3 (en) 1978-10-19

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Legal Events

Date Code Title Description
ST Notification of lapse