GB1535576A - Method and device for dismounting or mounting pib sections on a tower crane - Google Patents

Method and device for dismounting or mounting pib sections on a tower crane

Info

Publication number
GB1535576A
GB1535576A GB45154/76A GB4515476A GB1535576A GB 1535576 A GB1535576 A GB 1535576A GB 45154/76 A GB45154/76 A GB 45154/76A GB 4515476 A GB4515476 A GB 4515476A GB 1535576 A GB1535576 A GB 1535576A
Authority
GB
United Kingdom
Prior art keywords
arm
jib
counterweight
cradle
section
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
GB45154/76A
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.)
Linden Alimak AB
Original Assignee
Linden Alimak AB
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 Linden Alimak AB filed Critical Linden Alimak AB
Publication of GB1535576A publication Critical patent/GB1535576A/en
Expired 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
    • B66C23/28—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 constructed to operate at successively higher levels
    • B66C23/283—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 constructed to operate at successively higher levels with frameworks composed of assembled elements

Landscapes

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

Abstract

1535576 Changing jib length on tower cranes LINDEN-ALIMAK AB 29 Oct 1976 [29 Oct 1975] 45154/76 Headings B8H and B8B A carrying cradle having the form of a threearmed lever frame 2, 3, 4 with a counterweight 1 is used in a method of mounting or dismounting jib sections on a tower crane (8), Fig. 5 (not shown). The arm 4 has lifting lugs 7 and the arms 2, 3 are hinged to the arm 4, being stayed in position by ropes 5, 6. When lifted by the crane trolley, Fig. 8, the counterweight 1 holds arm 2 substantially vertical so that the end of arm 4 can be positioned high enough for a loop 30 to be coupled between the arm 4 and the jib section to be dismounted. Continued raising of the cradle brings arm 3 into contact with the jib where it is rotatably attached by a loop (31), Fig. 9 (not shown). Further raising of the cradle causes it to pivot about the end of arm 3 and take the weight of the section to be removed. The section can now be detached from the rest of the jib and lowered to the ground after loop 31 has been removed. During this lowering action the cradle assumes a balanced position with the section above the level of the counterweight 1 so that the counterweight 1 reaches the ground first, the cradle then pivoting about the counterweight to deposit the section on the ground, Figs. 11, 12 (not shown). Jib sections may be added to the jib by effectively reversing the above steps.
GB45154/76A 1975-10-29 1976-10-29 Method and device for dismounting or mounting pib sections on a tower crane Expired GB1535576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7512095A SE396356B (en) 1975-10-29 1975-10-29 PROCEDURE TO DISASSEMBLE OR ASSEMBLE CRANE ARM SECTIONS ON A TOWER CRANE AND DEVICE FOR PERFORMING THE PROCEDURE

Publications (1)

Publication Number Publication Date
GB1535576A true GB1535576A (en) 1978-12-13

Family

ID=20325926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45154/76A Expired GB1535576A (en) 1975-10-29 1976-10-29 Method and device for dismounting or mounting pib sections on a tower crane

Country Status (5)

Country Link
DE (1) DE2648803A1 (en)
DK (1) DK141045B (en)
FR (1) FR2329579A1 (en)
GB (1) GB1535576A (en)
SE (1) SE396356B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102152102A (en) * 2010-12-25 2011-08-17 杭州科曼萨杰牌建设机械有限公司 Aerial arm-releasing method for tower crane and arm-releasing device thereof
CN103071989A (en) * 2012-11-15 2013-05-01 中联重科股份有限公司 Tower crane boom segmented installation method and auxiliary installation stay bar thereof
US10584017B2 (en) 2015-11-30 2020-03-10 Cockerill Maintenance & Ingenierie S.A. Maintenance method and system for solar receiver

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931421C2 (en) * 1979-08-02 1981-11-26 Reich Maschinen GmbH, 7911 Nersingen Jib tower crane with extendable trolley jib
US4524873A (en) * 1982-11-26 1985-06-25 The Marley Cooling Tower Company Method and apparatus for disassembling sectional boom of tower crane at terminal heights
CN114259819B (en) * 2021-12-28 2023-05-05 江苏东方滤袋股份有限公司 Dismantling device for dedusting filter bag

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102152102A (en) * 2010-12-25 2011-08-17 杭州科曼萨杰牌建设机械有限公司 Aerial arm-releasing method for tower crane and arm-releasing device thereof
CN103071989A (en) * 2012-11-15 2013-05-01 中联重科股份有限公司 Tower crane boom segmented installation method and auxiliary installation stay bar thereof
US10584017B2 (en) 2015-11-30 2020-03-10 Cockerill Maintenance & Ingenierie S.A. Maintenance method and system for solar receiver

Also Published As

Publication number Publication date
DE2648803A1 (en) 1977-05-05
SE7512095L (en) 1977-04-30
DK141045C (en) 1980-06-16
DK488576A (en) 1977-04-30
FR2329579A1 (en) 1977-05-27
FR2329579B3 (en) 1980-11-07
DK141045B (en) 1979-12-31
SE396356B (en) 1977-09-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee