GB1282847A - Improvements in or relating to tower cranes - Google Patents

Improvements in or relating to tower cranes

Info

Publication number
GB1282847A
GB1282847A GB2174871A GB2174871A GB1282847A GB 1282847 A GB1282847 A GB 1282847A GB 2174871 A GB2174871 A GB 2174871A GB 2174871 A GB2174871 A GB 2174871A GB 1282847 A GB1282847 A GB 1282847A
Authority
GB
United Kingdom
Prior art keywords
jib
tower
counterweight
strut
relating
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
GB2174871A
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.)
Richier SA
Original Assignee
Richier 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 Richier SA filed Critical Richier SA
Publication of GB1282847A publication Critical patent/GB1282847A/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
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/14—Trolley or crane travel drives
    • 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
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0385—Cranes with trolleys movable along adjustable or slewable arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm

Landscapes

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

Abstract

1282847 Tower crane RICHIER 19 April 1971 [13 Feb 1970] 21748/71 Heading B8B A tower crane comprises a load carriage jib 4 rigidly fixed to the upper part 2 of the tower, a counterweight jib 6 hingedly connected at 8 to the said upper part on which a counterweight 7 is movably mounted, ties 11, 14 connecting the jibs 4, 6 to the top 12 of a strut 9 which is hingedly mounted at 10 to the jib 4. In modifications, Figs. 2-5 (not shown), more than one tie extends from the carriage jib 4 to the strut 9. In further modifications, Figs. 6, 4 (not shown), the counterweight (71) is fixed relative to its jib (70), equilibrium being effected by movement of the jib in a vertical plane. The upper tower part 2 is rotatable on the lower tower section 1.
GB2174871A 1970-02-13 1971-04-19 Improvements in or relating to tower cranes Expired GB1282847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7005190A FR2077779B1 (en) 1970-02-13 1970-02-13

Publications (1)

Publication Number Publication Date
GB1282847A true GB1282847A (en) 1972-07-26

Family

ID=9050609

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2174871A Expired GB1282847A (en) 1970-02-13 1971-04-19 Improvements in or relating to tower cranes

Country Status (6)

Country Link
JP (1) JPS5111378B1 (en)
CA (1) CA922671A (en)
DE (1) DE2106291C3 (en)
FR (1) FR2077779B1 (en)
GB (1) GB1282847A (en)
SE (1) SE382963B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168130A (en) * 1977-04-22 1979-09-18 Dr. Barth Kg Apparatus for placing paving elements
GB2433734A (en) * 2005-12-30 2007-07-04 David Schofield Adjustable counterbalance system
CN102992209A (en) * 2012-12-20 2013-03-27 中联重科股份有限公司 Balance weight of crane, crane and moment balance method of crane

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2942317A1 (en) 2014-05-08 2015-11-11 Helmut Quirxtner Crane
CN116374858B (en) * 2023-04-18 2023-10-03 江苏朗恩机械制造有限公司 Balance weight balancing structure of crane

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE449603A (en) * 1941-09-24
FR1298498A (en) * 1961-06-02 1962-07-13 Potain & Cie Ets F Long-boom crane improvements
FR1408597A (en) * 1964-04-27 1965-08-13 Crane with extendable boom, movable vertically and horizontally on the column
FR1413966A (en) * 1964-08-27 1965-10-15 Cantilever crane, fitted with a counterweight on a mobile arm, the position of which depends on the load to be lifted
US3250400A (en) * 1964-10-26 1966-05-10 Robert F Bennett Rotary crane with split race bull wheel
FR1455107A (en) * 1965-05-07 1966-04-01 Quick-erecting transportable tower crane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168130A (en) * 1977-04-22 1979-09-18 Dr. Barth Kg Apparatus for placing paving elements
GB2433734A (en) * 2005-12-30 2007-07-04 David Schofield Adjustable counterbalance system
CN102992209A (en) * 2012-12-20 2013-03-27 中联重科股份有限公司 Balance weight of crane, crane and moment balance method of crane

Also Published As

Publication number Publication date
JPS5111378B1 (en) 1976-04-10
DE2106291B2 (en) 1975-04-17
FR2077779B1 (en) 1974-09-20
DE2106291A1 (en) 1972-01-13
FR2077779A1 (en) 1971-11-05
DE2106291C3 (en) 1975-12-11
SE382963B (en) 1976-02-23
CA922671A (en) 1973-03-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee