AT287241B - Telescopic boom for crane operation, especially for excavators - Google Patents

Telescopic boom for crane operation, especially for excavators

Info

Publication number
AT287241B
AT287241B AT286768A AT286768A AT287241B AT 287241 B AT287241 B AT 287241B AT 286768 A AT286768 A AT 286768A AT 286768 A AT286768 A AT 286768A AT 287241 B AT287241 B AT 287241B
Authority
AT
Austria
Prior art keywords
excavators
telescopic boom
crane operation
crane
boom
Prior art date
Application number
AT286768A
Other languages
German (de)
Inventor
Josef Ing Linke
Original Assignee
Orenstein & Koppel Ag
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 Orenstein & Koppel Ag filed Critical Orenstein & Koppel Ag
Application granted granted Critical
Publication of AT287241B publication Critical patent/AT287241B/en

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)
AT286768A 1967-05-03 1968-03-22 Telescopic boom for crane operation, especially for excavators AT287241B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1967O0012475 DE1276305B (en) 1967-05-03 1967-05-03 Telescopic boom for crane operation, especially for excavators

Publications (1)

Publication Number Publication Date
AT287241B true AT287241B (en) 1971-01-11

Family

ID=7352815

Family Applications (1)

Application Number Title Priority Date Filing Date
AT286768A AT287241B (en) 1967-05-03 1968-03-22 Telescopic boom for crane operation, especially for excavators

Country Status (4)

Country Link
AT (1) AT287241B (en)
DE (1) DE1276305B (en)
FR (1) FR1563401A (en)
NL (1) NL6806256A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2638185C3 (en) * 1976-08-25 1979-10-11 O & K Orenstein & Koppel Ag, 1000 Berlin Telescopic boom for mobile cranes
GB1594096A (en) * 1976-11-11 1981-07-30 Coles Cranes Ltd Telescopic booms
US4433515A (en) * 1981-11-04 1984-02-28 Kidde, Inc. Remotely operable latch and locking pin for a multi-section boom including a manual fly section
FR2523565B1 (en) * 1982-03-19 1985-12-06 Ppm Sa TELESCOPIC BOOM WITH AN EXTENSION
US4688690A (en) * 1986-03-07 1987-08-25 Harnischfeger Corporation Method and apparatus for extending fly section of crane boom
DE4018222A1 (en) * 1990-06-07 1991-12-12 Krupp Industrietech TELESCOPIC BOOM WITH CLUTCH DEVICE FOR EXTENSION ARRANGEMENT

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171545A (en) * 1962-12-03 1965-03-02 Drott Mfg Corp Three section telescoping crane boom

Also Published As

Publication number Publication date
FR1563401A (en) 1969-04-11
NL6806256A (en) 1968-11-04
DE1276305B (en) 1968-08-29

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee