FR2067426A5 - - Google Patents

Info

Publication number
FR2067426A5
FR2067426A5 FR6937787A FR6937787A FR2067426A5 FR 2067426 A5 FR2067426 A5 FR 2067426A5 FR 6937787 A FR6937787 A FR 6937787A FR 6937787 A FR6937787 A FR 6937787A FR 2067426 A5 FR2067426 A5 FR 2067426A5
Authority
FR
France
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
FR6937787A
Other languages
French (fr)
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
Priority to FR6937787A priority Critical patent/FR2067426A5/fr
Priority to GB5232770A priority patent/GB1335373A/en
Application granted granted Critical
Publication of FR2067426A5 publication Critical patent/FR2067426A5/fr
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
    • B66C23/62—Constructional features or details
    • B66C23/84—Slewing gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B66C13/30—Circuits for braking, traversing, or slewing motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
    • B66C2700/082—Control of the secondary movements, e.g. travelling, slewing, luffing of the jib, changing of the range

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Control And Safety Of Cranes (AREA)
  • Stopping Of Electric Motors (AREA)
FR6937787A 1969-11-03 1969-11-03 Expired FR2067426A5 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR6937787A FR2067426A5 (en) 1969-11-03 1969-11-03
GB5232770A GB1335373A (en) 1969-11-03 1970-11-03 Tower cranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6937787A FR2067426A5 (en) 1969-11-03 1969-11-03

Publications (1)

Publication Number Publication Date
FR2067426A5 true FR2067426A5 (en) 1971-08-20

Family

ID=9042529

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6937787A Expired FR2067426A5 (en) 1969-11-03 1969-11-03

Country Status (2)

Country Link
FR (1) FR2067426A5 (en)
GB (1) GB1335373A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520133A1 (en) * 1982-01-19 1983-07-22 Potain Sa EQUIPMENT FOR REDUCING DYNAMIC EFFECTS IN THE ROTATION CONTROL OF A HORIZONTAL ELEMENT OF GREAT INERTIA

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112811330B (en) * 2019-11-15 2023-06-23 湖南沃森电气科技有限公司 Control method and system for slewing mechanism of tower crane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520133A1 (en) * 1982-01-19 1983-07-22 Potain Sa EQUIPMENT FOR REDUCING DYNAMIC EFFECTS IN THE ROTATION CONTROL OF A HORIZONTAL ELEMENT OF GREAT INERTIA

Also Published As

Publication number Publication date
GB1335373A (en) 1973-10-24

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Legal Events

Date Code Title Description
ST Notification of lapse