FR2252279A1 - Folding tower crane jib erection system - has tie rope from tailweight jib always held taut by sliding crossbeam - Google Patents

Folding tower crane jib erection system - has tie rope from tailweight jib always held taut by sliding crossbeam

Info

Publication number
FR2252279A1
FR2252279A1 FR7342643A FR7342643A FR2252279A1 FR 2252279 A1 FR2252279 A1 FR 2252279A1 FR 7342643 A FR7342643 A FR 7342643A FR 7342643 A FR7342643 A FR 7342643A FR 2252279 A1 FR2252279 A1 FR 2252279A1
Authority
FR
France
Prior art keywords
jib
tie rope
tailweight
tower crane
always held
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
FR7342643A
Other languages
French (fr)
Other versions
FR2252279B1 (en
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.)
Cadillon SA
Original Assignee
Cadillon 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 Cadillon SA filed Critical Cadillon SA
Priority to FR7342643A priority Critical patent/FR2252279A1/en
Publication of FR2252279A1 publication Critical patent/FR2252279A1/en
Application granted granted Critical
Publication of FR2252279B1 publication Critical patent/FR2252279B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/26—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 specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/342—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with telescopic elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The crane has folding main and tailweight jibs and a constant-length tie rope between the tailweight jib and the slewing superstructure. Means are included for taking up the slack in the tie rope when not in use, typically in the form of a cross-beam sliding up and down inside the larger tower section and to which the tie rope is attached, a stop inside the tower section concerned limiting upward movement of the cross-member. The tie rope can be reeved round a first pulley on the superstructure, a second one at the tower base and a third one inside the tower section and above the stop. An auxiliary pulley to the right of the first pulley supports the tie rope when the crane is completely folded.
FR7342643A 1973-11-23 1973-11-23 Folding tower crane jib erection system - has tie rope from tailweight jib always held taut by sliding crossbeam Granted FR2252279A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7342643A FR2252279A1 (en) 1973-11-23 1973-11-23 Folding tower crane jib erection system - has tie rope from tailweight jib always held taut by sliding crossbeam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7342643A FR2252279A1 (en) 1973-11-23 1973-11-23 Folding tower crane jib erection system - has tie rope from tailweight jib always held taut by sliding crossbeam

Publications (2)

Publication Number Publication Date
FR2252279A1 true FR2252279A1 (en) 1975-06-20
FR2252279B1 FR2252279B1 (en) 1976-10-08

Family

ID=9128480

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7342643A Granted FR2252279A1 (en) 1973-11-23 1973-11-23 Folding tower crane jib erection system - has tie rope from tailweight jib always held taut by sliding crossbeam

Country Status (1)

Country Link
FR (1) FR2252279A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430913A1 (en) * 1978-07-12 1980-02-08 Potain Sa Crane with telescopic mast and hinged boom - has cable trained around pulleys to bring boom to horizontal position as mast is erected
US4446975A (en) * 1982-03-02 1984-05-08 Koenig Wilhelm Rotary crane
DE102012018111A1 (en) * 2012-09-13 2014-03-13 Liebherr-Werk Biberach Gmbh Tower Crane
EP3225582A1 (en) 2016-04-01 2017-10-04 Manitowoc Crane Group France Folding structure making up a tower crane

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430913A1 (en) * 1978-07-12 1980-02-08 Potain Sa Crane with telescopic mast and hinged boom - has cable trained around pulleys to bring boom to horizontal position as mast is erected
US4446975A (en) * 1982-03-02 1984-05-08 Koenig Wilhelm Rotary crane
DE102012018111A1 (en) * 2012-09-13 2014-03-13 Liebherr-Werk Biberach Gmbh Tower Crane
EP3225582A1 (en) 2016-04-01 2017-10-04 Manitowoc Crane Group France Folding structure making up a tower crane

Also Published As

Publication number Publication date
FR2252279B1 (en) 1976-10-08

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Legal Events

Date Code Title Description
ST Notification of lapse