EP0392972A3 - Coupling for an excavator bucket - Google Patents

Coupling for an excavator bucket Download PDF

Info

Publication number
EP0392972A3
EP0392972A3 EP19900810171 EP90810171A EP0392972A3 EP 0392972 A3 EP0392972 A3 EP 0392972A3 EP 19900810171 EP19900810171 EP 19900810171 EP 90810171 A EP90810171 A EP 90810171A EP 0392972 A3 EP0392972 A3 EP 0392972A3
Authority
EP
European Patent Office
Prior art keywords
coupling
wedges
threaded rod
excavator bucket
coupling part
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
EP19900810171
Other languages
German (de)
French (fr)
Other versions
EP0392972A2 (en
EP0392972B1 (en
Inventor
Pietro Pallotta
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT90810171T priority Critical patent/ATE94930T1/en
Publication of EP0392972A2 publication Critical patent/EP0392972A2/en
Publication of EP0392972A3 publication Critical patent/EP0392972A3/en
Application granted granted Critical
Publication of EP0392972B1 publication Critical patent/EP0392972B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02F3/364—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using wedges
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Shovels (AREA)
  • Clamps And Clips (AREA)

Abstract

The coupling (1) consists of two coupling parts (4, 5) which can be pivoted one inside the other for coupling. They can be locked and clamped in this position by means of two wedges which are arranged so as to be laterally displaceable in the top coupling part (5). For this purpose, the wedges are pushed in a diametrically opposed manner under the projections (13) by being moved by a common threaded rod having two opposed threads, which threaded rod passes through the wedges. The threaded rod is driven via a roller chain by a hydrostatic drive arranged in the top coupling part (5). <IMAGE>
EP90810171A 1989-04-12 1990-03-06 Coupling for an excavator bucket Expired - Lifetime EP0392972B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90810171T ATE94930T1 (en) 1989-04-12 1990-03-06 COUPLING FOR EXCAVATOR BUCKET.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1376/89A CH680007A5 (en) 1989-04-12 1989-04-12
CH1376/89 1989-04-12

Publications (3)

Publication Number Publication Date
EP0392972A2 EP0392972A2 (en) 1990-10-17
EP0392972A3 true EP0392972A3 (en) 1991-07-03
EP0392972B1 EP0392972B1 (en) 1993-09-22

Family

ID=4208979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810171A Expired - Lifetime EP0392972B1 (en) 1989-04-12 1990-03-06 Coupling for an excavator bucket

Country Status (4)

Country Link
EP (1) EP0392972B1 (en)
AT (1) ATE94930T1 (en)
CH (1) CH680007A5 (en)
DE (1) DE59002794D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9315868U1 (en) * 1993-10-18 1995-02-16 Liebherr-Hydraulikbagger GmbH, 88457 Kirchdorf clutch
DE29601727U1 (en) * 1996-02-02 1996-08-01 Nagler, Jürgen, 58313 Herdecke Tool changing device for hydraulic excavators
EP1353011A1 (en) * 2002-03-27 2003-10-15 Rädlinger Maschinen- und Anlagenbau GmbH Device for coupling a working implement to a construction machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB928103A (en) * 1961-04-18 1963-06-06 Priestman Brothers Improvements relating to trench excavators
EP0143074A1 (en) * 1983-09-15 1985-05-29 Fredi Stury AG Excavator
GB2208220A (en) * 1987-07-20 1989-03-15 Fritiof Hulden Quick-coupling device, e.g. for excavator bucket

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB928103A (en) * 1961-04-18 1963-06-06 Priestman Brothers Improvements relating to trench excavators
EP0143074A1 (en) * 1983-09-15 1985-05-29 Fredi Stury AG Excavator
GB2208220A (en) * 1987-07-20 1989-03-15 Fritiof Hulden Quick-coupling device, e.g. for excavator bucket

Also Published As

Publication number Publication date
ATE94930T1 (en) 1993-10-15
CH680007A5 (en) 1992-05-29
EP0392972A2 (en) 1990-10-17
EP0392972B1 (en) 1993-09-22
DE59002794D1 (en) 1993-10-28

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