FR2444638A1 - Anti collision protection for crane jib and cable - uses radar beam transmitted from jib to motor driven rotating reflector on cable - Google Patents

Anti collision protection for crane jib and cable - uses radar beam transmitted from jib to motor driven rotating reflector on cable

Info

Publication number
FR2444638A1
FR2444638A1 FR7835555A FR7835555A FR2444638A1 FR 2444638 A1 FR2444638 A1 FR 2444638A1 FR 7835555 A FR7835555 A FR 7835555A FR 7835555 A FR7835555 A FR 7835555A FR 2444638 A1 FR2444638 A1 FR 2444638A1
Authority
FR
France
Prior art keywords
cable
jib
reflector
motor driven
beam transmitted
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
FR7835555A
Other languages
French (fr)
Other versions
FR2444638B1 (en
Inventor
Gerard Dequevauviller
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.)
Bouygues SA
Original Assignee
Bouygues 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 Bouygues SA filed Critical Bouygues SA
Priority to FR7835555A priority Critical patent/FR2444638A1/en
Publication of FR2444638A1 publication Critical patent/FR2444638A1/en
Application granted granted Critical
Publication of FR2444638B1 publication Critical patent/FR2444638B1/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
    • B66C15/00—Safety gear
    • B66C15/04—Safety gear for preventing collisions, e.g. between cranes or trolleys operating on the same track
    • B66C15/045—Safety gear for preventing collisions, e.g. between cranes or trolleys operating on the same track electrical
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Jib Cranes (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

The anti collision device protects a moving crane jib structure in a certain area and a cable. It has a transmitter-receiver on the structure to give a detection beam in a limited area, covered by movement of the structure. The cable has a reflector, rotating on it to receive the beam. The reflector rotates between a folded away position and an adjustable dervice position. A motor and transmission rotate the reflector which has several reflecting plates at 90 degrees on a central tube, through which the cable passes. The beam is a radar one.
FR7835555A 1978-12-18 1978-12-18 Anti collision protection for crane jib and cable - uses radar beam transmitted from jib to motor driven rotating reflector on cable Granted FR2444638A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7835555A FR2444638A1 (en) 1978-12-18 1978-12-18 Anti collision protection for crane jib and cable - uses radar beam transmitted from jib to motor driven rotating reflector on cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7835555A FR2444638A1 (en) 1978-12-18 1978-12-18 Anti collision protection for crane jib and cable - uses radar beam transmitted from jib to motor driven rotating reflector on cable

Publications (2)

Publication Number Publication Date
FR2444638A1 true FR2444638A1 (en) 1980-07-18
FR2444638B1 FR2444638B1 (en) 1982-05-21

Family

ID=9216253

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7835555A Granted FR2444638A1 (en) 1978-12-18 1978-12-18 Anti collision protection for crane jib and cable - uses radar beam transmitted from jib to motor driven rotating reflector on cable

Country Status (1)

Country Link
FR (1) FR2444638A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494245A1 (en) * 1980-11-14 1982-05-21 Entreprises Soc Gle Collision prevention system for tower cranes - includes angular and radial position detectors providing warnings to both crane drivers when collision path is engaged
FR2537119A1 (en) * 1982-12-02 1984-06-08 Chantiers Modernes Sa Safety device which can be adapted to the jibs of cranes intended to clear each other.
CN108341341A (en) * 2018-02-05 2018-07-31 法兰泰克重工股份有限公司 Layer region anticollision protection system and method above and below more cranes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1218798A (en) * 1968-11-05 1971-01-13 Johnson & Wayne Ltd Improvements in or relating to slewing jib cranes having safety apparatus
US3713147A (en) * 1970-12-23 1973-01-23 United Aircraft Corp Obstacle detection with crossed fan beam
DE2541405A1 (en) * 1975-09-17 1977-03-31 Born Ultraschall Preventing collision of moving parts - using transmitter and receiver for alternating electromagnetic fields to provide contact-free end switches
US4068124A (en) * 1977-01-28 1978-01-10 The United States Of America As Represented By The Secretary Of The Army Wire obstacle warning system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1218798A (en) * 1968-11-05 1971-01-13 Johnson & Wayne Ltd Improvements in or relating to slewing jib cranes having safety apparatus
US3713147A (en) * 1970-12-23 1973-01-23 United Aircraft Corp Obstacle detection with crossed fan beam
DE2541405A1 (en) * 1975-09-17 1977-03-31 Born Ultraschall Preventing collision of moving parts - using transmitter and receiver for alternating electromagnetic fields to provide contact-free end switches
US4068124A (en) * 1977-01-28 1978-01-10 The United States Of America As Represented By The Secretary Of The Army Wire obstacle warning system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/73 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494245A1 (en) * 1980-11-14 1982-05-21 Entreprises Soc Gle Collision prevention system for tower cranes - includes angular and radial position detectors providing warnings to both crane drivers when collision path is engaged
FR2537119A1 (en) * 1982-12-02 1984-06-08 Chantiers Modernes Sa Safety device which can be adapted to the jibs of cranes intended to clear each other.
CN108341341A (en) * 2018-02-05 2018-07-31 法兰泰克重工股份有限公司 Layer region anticollision protection system and method above and below more cranes
CN108341341B (en) * 2018-02-05 2019-09-24 法兰泰克重工股份有限公司 Layer region anticollision protection system and method above and below more cranes

Also Published As

Publication number Publication date
FR2444638B1 (en) 1982-05-21

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Legal Events

Date Code Title Description
ST Notification of lapse