FR2417467A1 - Sensing system for crane stabilisation - has ground contact detectors each with emitter and receiver which are aligned when feet take weight of crane - Google Patents

Sensing system for crane stabilisation - has ground contact detectors each with emitter and receiver which are aligned when feet take weight of crane

Info

Publication number
FR2417467A1
FR2417467A1 FR7804827A FR7804827A FR2417467A1 FR 2417467 A1 FR2417467 A1 FR 2417467A1 FR 7804827 A FR7804827 A FR 7804827A FR 7804827 A FR7804827 A FR 7804827A FR 2417467 A1 FR2417467 A1 FR 2417467A1
Authority
FR
France
Prior art keywords
crane
feet
emitter
receiver
aligned
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
FR7804827A
Other languages
French (fr)
Other versions
FR2417467B1 (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.)
Coignet SA
Original Assignee
Coignet 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 Coignet SA filed Critical Coignet SA
Priority to FR7804827A priority Critical patent/FR2417467A1/en
Publication of FR2417467A1 publication Critical patent/FR2417467A1/en
Application granted granted Critical
Publication of FR2417467B1 publication Critical patent/FR2417467B1/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
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes

Abstract

A crane has transverse beams (2) in which support beams (4, 5) are retracted for transport and extended to support the crane when working. Support feet (10, 11) are lowered and raised by hydraulic jacks (6, 7). When beams (4, 5) are extended and before feet (10, 11) contact the ground the inner ends of the beams are slightly upwardly inclined due to clearances. When the feet take the weight they are inclined downwardly. In this position an emitter and a receiver are aligned to give a signal indicating the feet are taking the weight of the vehicle.
FR7804827A 1978-02-21 1978-02-21 Sensing system for crane stabilisation - has ground contact detectors each with emitter and receiver which are aligned when feet take weight of crane Granted FR2417467A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7804827A FR2417467A1 (en) 1978-02-21 1978-02-21 Sensing system for crane stabilisation - has ground contact detectors each with emitter and receiver which are aligned when feet take weight of crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7804827A FR2417467A1 (en) 1978-02-21 1978-02-21 Sensing system for crane stabilisation - has ground contact detectors each with emitter and receiver which are aligned when feet take weight of crane

Publications (2)

Publication Number Publication Date
FR2417467A1 true FR2417467A1 (en) 1979-09-14
FR2417467B1 FR2417467B1 (en) 1981-07-31

Family

ID=9204812

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7804827A Granted FR2417467A1 (en) 1978-02-21 1978-02-21 Sensing system for crane stabilisation - has ground contact detectors each with emitter and receiver which are aligned when feet take weight of crane

Country Status (1)

Country Link
FR (1) FR2417467A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518981A1 (en) * 1981-12-28 1983-07-01 Ppm Sa PUBLIC WORKS EQUIPMENT WITH DOUBLE CHASSIS
WO1989011441A1 (en) * 1988-05-18 1989-11-30 Hi-Spec Engineering Limited Access platforms
EP0495166A1 (en) * 1990-12-17 1992-07-22 MAN Nutzfahrzeuge Aktiengesellschaft System frame, arranged on the body frame of a truck
EP0921092A2 (en) * 1997-12-05 1999-06-09 Grove U.S. LLC Obstacle avoidance and crushing protection system for outriggers of a chassis

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1151207A (en) * 1956-06-05 1958-01-27 Controle Et D Expl De Transpor Improvements to vehicles fitted with lifting devices
DE1162987B (en) * 1960-11-15 1964-02-13 Demag Zug Gmbh Mobile crane with lowerable claws to increase the stability and length-adjustable boom
FR2189301A1 (en) * 1972-06-23 1974-01-25 Metz Gmbh Carl
FR2255252A1 (en) * 1973-12-22 1975-07-18 Metz Fritz
FR2339563A1 (en) * 1976-01-27 1977-08-26 Ppm Sa TELESCOPIC STRUCTURE EQUIPPED WITH A DETECTOR OF THE RELATIVE POSITION OF TWO TRUNKS
DE2609631A1 (en) * 1976-03-09 1977-09-15 Metz Gmbh Carl Vehicle with slewing superstructure - has interlock preventing boom movement before outriggers are in contact with ground

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1151207A (en) * 1956-06-05 1958-01-27 Controle Et D Expl De Transpor Improvements to vehicles fitted with lifting devices
DE1162987B (en) * 1960-11-15 1964-02-13 Demag Zug Gmbh Mobile crane with lowerable claws to increase the stability and length-adjustable boom
FR2189301A1 (en) * 1972-06-23 1974-01-25 Metz Gmbh Carl
FR2255252A1 (en) * 1973-12-22 1975-07-18 Metz Fritz
FR2339563A1 (en) * 1976-01-27 1977-08-26 Ppm Sa TELESCOPIC STRUCTURE EQUIPPED WITH A DETECTOR OF THE RELATIVE POSITION OF TWO TRUNKS
DE2609631A1 (en) * 1976-03-09 1977-09-15 Metz Gmbh Carl Vehicle with slewing superstructure - has interlock preventing boom movement before outriggers are in contact with ground

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518981A1 (en) * 1981-12-28 1983-07-01 Ppm Sa PUBLIC WORKS EQUIPMENT WITH DOUBLE CHASSIS
WO1989011441A1 (en) * 1988-05-18 1989-11-30 Hi-Spec Engineering Limited Access platforms
GB2234733A (en) * 1988-05-18 1991-02-13 Hi Spec Engineering Limited Access platforms
GB2234733B (en) * 1988-05-18 1992-02-05 Hi Spec Engineering Limited Access platforms
EP0495166A1 (en) * 1990-12-17 1992-07-22 MAN Nutzfahrzeuge Aktiengesellschaft System frame, arranged on the body frame of a truck
TR25731A (en) * 1990-12-17 1993-09-01 1 Man Nutzfahrzeuge Ag 2 Sieme SYSTEM FRAME ARE PASSED ON A TRUCK'S FLAT.
EP0921092A2 (en) * 1997-12-05 1999-06-09 Grove U.S. LLC Obstacle avoidance and crushing protection system for outriggers of a chassis
EP0921092A3 (en) * 1997-12-05 1999-06-16 Grove U.S. LLC Obstacle avoidance and crushing protection system for outriggers of a chassis
US6067024A (en) * 1997-12-05 2000-05-23 Grove U.S. L.L.C. Obstacle avoidance and crushing protection system for outriggers of a chassis

Also Published As

Publication number Publication date
FR2417467B1 (en) 1981-07-31

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Legal Events

Date Code Title Description
ST Notification of lapse