EP0037348A3 - Safety device for hydraulically operated lifting device - Google Patents

Safety device for hydraulically operated lifting device Download PDF

Info

Publication number: EP0037348A3
Authority: EP; European Patent Office
Prior art keywords: hydraulically operated; operated lifting; lifting device; safety device; safety
Prior art date: 1980-03-21
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

EP81420036A

Other languages

French (fr)

Other versions

EP0037348B1 (en

EP0037348A2 (en

Inventor

Roger Manjot

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.)

Individual

Original Assignee

Individual

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.)

1980-03-21

Filing date

1981-03-17

Publication date

1982-08-11

1980-03-21 Priority claimed from FR8007238A external-priority patent/FR2478607A1/en

1980-06-06 Priority claimed from FR8013018A external-priority patent/FR2483903A1/en

1981-03-17 Application filed by Individual filed Critical Individual

1981-03-17 Priority to AT81420036T priority Critical patent/ATE14866T1/en

1981-10-07 Publication of EP0037348A2 publication Critical patent/EP0037348A2/en

1982-08-11 Publication of EP0037348A3 publication Critical patent/EP0037348A3/en

1985-08-14 Application granted granted Critical

1985-08-14 Publication of EP0037348B1 publication Critical patent/EP0037348B1/en

Status 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
- B66C23/88—Safety gear
- B66C23/90—Devices for indicating or limiting lifting moment
- B66C23/905—Devices for indicating or limiting lifting moment electrical
- 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
- B66C23/88—Safety gear
- B66C23/90—Devices for indicating or limiting lifting moment

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Fluid-Pressure Circuits (AREA)
Control And Safety Of Cranes (AREA)

EP81420036A 1980-03-21 1981-03-17 Safety device for hydraulically operated lifting device Expired EP0037348B1 (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT81420036T ATE14866T1 (en)	1980-03-21	1981-03-17	SAFETY DEVICE FOR A HYDRAULIC LIFTING DEVICE.

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
FR8007238		1980-03-21
FR8007238A FR2478607A1 (en)	1980-03-21	1980-03-21	Safety system for hydraulic lifting appts. - uses dual-threshold hydraulic pressure detection systems controlling movements of lifting arms
FR8013018A FR2483903A1 (en)	1980-06-06	1980-06-06	Safety system for hydraulic lifting appts. - uses dual-threshold hydraulic pressure detection systems controlling movements of lifting arms
FR8013018		1980-06-06

Publications (3)

Publication Number	Publication Date
EP0037348A2 EP0037348A2 (en)	1981-10-07
EP0037348A3 true EP0037348A3 (en)	1982-08-11
EP0037348B1 EP0037348B1 (en)	1985-08-14

Family

ID=26221696

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP81420036A Expired EP0037348B1 (en)	1980-03-21	1981-03-17	Safety device for hydraulically operated lifting device

Country Status (5)

Country	Link
US (1)	US4411368A (en)
EP (1)	EP0037348B1 (en)
DE (1)	DE3171768D1 (en)
DK (1)	DK128581A (en)
ES (1)	ES8202316A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2534643B1 (en) *	1982-10-15	1986-12-26	Bennes Marrel	LOAD STATE CONTROLLER WITH TORQUE CAPACITY LIMITER FOR A HYDRAULIC CIRCUIT, ESPECIALLY ON A CRANE
GB2144098A (en) *	1983-07-30	1985-02-27	Simon Eng Dudley Ltd	Hydraulically elevatable access equipment
GB8327848D0 (en) *	1983-10-18	1983-11-16	Aerial Access Equip	Access equipment
US4787524A (en) *	1985-09-25	1988-11-29	National-Oilwell	Overload protection system for a crane
AT388359B (en) *	1987-03-02	1989-06-12	Palfinger Fa	DEVICE FOR CONTROLLING A HYDRAULICALLY ACTUATED DEVICE, IN PARTICULAR A LOADING CRANE
FR2677629B1 (en) *	1991-06-17	1998-02-20	Senergy Sarl	METHOD FOR CONTROLLING THE LOAD FOR A LIFTING MACHINE AND DEVICE FOR ITS IMPLEMENTATION.
US5597080A (en) *	1994-08-02	1997-01-28	Kranco Crane Services, Inc.	Snag load protection system for a crane
DK3239092T3 (en) *	2016-04-25	2019-09-02	Cargotec Patenter Ab	Hydraulic crane

Citations (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1135147B (en) *	1959-08-26	1962-08-23	Miag Muehlenbau & Ind Gmbh	Safety device for hoists
DE1149150B (en) *	1959-10-28	1963-05-22	Demag Zug Gmbh	Mobile crane with an overload protection device
DE1238170B (en) *	1964-11-25	1967-04-06	Miag Muehlenbau	Device for securing against exceeding the permissible load torque for cranes with jibs
DE1275257B (en) *	1965-07-06	1968-08-14	Miag Muehlenbau & Ind Gmbh	Safety device for work equipment, especially lifting equipment
DE1276307B (en) *	1966-10-01	1968-08-29	Miag Muehlenbau & Ind Gmbh	Device for automatic limitation of the load torque on jib cranes with hydraulic drive
US3645407A (en) *	1970-06-15	1972-02-29	Daniel F Przybylski	Overload protector for crane booms
DE2154631A1 (en) *	1970-11-04	1972-05-10	Hiab-Foco Ab, Hudiksvall (Schweden)	Locking device on hydraulically operated loading cranes
FR2164572A1 (en) *	1971-12-24	1973-08-03	Gross Siegfried
US3792780A (en) *	1971-12-02	1974-02-19	Kidde & Co Walter	Mechanism for positioning and restricting crane control levers to prevent dangerous load condition
DE2344168A1 (en) *	1973-09-01	1975-03-06	Krueger & Co	Securing unit for crane's operating linkage - is actuated when predetermined maximum load moment is exceeded
DE2402033A1 (en) *	1974-01-17	1975-07-31	Siegfried Dipl Ing Dr In Gross	Lorry-mounted crane overload protection system - has delockable non-return valves in pipes to all hydraulic cylinders
GB1403046A (en) *	1972-09-08	1975-08-13	Weimar Kombinat Veb	Load factor safety mechanism
US4119118A (en) *	1977-01-13	1978-10-10	Walter Kidde & Company, Inc.	Automatic machine motion restricting mechanism
FR2418766A1 (en) *	1978-03-01	1979-09-28	Michel Gutierrez	IMPROVEMENT IN HYDRAULIC CONTROLLED LIFTING DEVICES
FR2419899A1 (en) *	1978-03-17	1979-10-12	Haulotte Arthur	Automatic overload or end stop for crane - has solenoid-operated valve to release fluid without moving control levers
GB2078197A (en) *	1980-06-04	1982-01-06	Hiab Foco Ab	Load limiting device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3963127A (en) *	1972-05-02	1976-06-15	Hiab-Foco Aktiebolag	Blocking arrangement in hydraulically operated cranes
US4027772A (en) *	1975-04-17	1977-06-07	Fulton Industries, Inc.	Protective circuit for overload sensor
US4170308A (en) *	1977-11-01	1979-10-09	Koehring Company	Hydraulic function disconnect means

1981
- 1981-03-09 US US06/241,664 patent/US4411368A/en not_active Expired - Fee Related
- 1981-03-17 DE DE8181420036T patent/DE3171768D1/en not_active Expired
- 1981-03-17 EP EP81420036A patent/EP0037348B1/en not_active Expired
- 1981-03-20 ES ES500544A patent/ES8202316A1/en not_active Expired
- 1981-03-20 DK DK128581A patent/DK128581A/en not_active Application Discontinuation

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1135147B (en) *	1959-08-26	1962-08-23	Miag Muehlenbau & Ind Gmbh	Safety device for hoists
DE1149150B (en) *	1959-10-28	1963-05-22	Demag Zug Gmbh	Mobile crane with an overload protection device
DE1238170B (en) *	1964-11-25	1967-04-06	Miag Muehlenbau	Device for securing against exceeding the permissible load torque for cranes with jibs
DE1275257B (en) *	1965-07-06	1968-08-14	Miag Muehlenbau & Ind Gmbh	Safety device for work equipment, especially lifting equipment
DE1276307B (en) *	1966-10-01	1968-08-29	Miag Muehlenbau & Ind Gmbh	Device for automatic limitation of the load torque on jib cranes with hydraulic drive
US3645407A (en) *	1970-06-15	1972-02-29	Daniel F Przybylski	Overload protector for crane booms
DE2154631A1 (en) *	1970-11-04	1972-05-10	Hiab-Foco Ab, Hudiksvall (Schweden)	Locking device on hydraulically operated loading cranes
US3792780A (en) *	1971-12-02	1974-02-19	Kidde & Co Walter	Mechanism for positioning and restricting crane control levers to prevent dangerous load condition
FR2164572A1 (en) *	1971-12-24	1973-08-03	Gross Siegfried
GB1403046A (en) *	1972-09-08	1975-08-13	Weimar Kombinat Veb	Load factor safety mechanism
DE2344168A1 (en) *	1973-09-01	1975-03-06	Krueger & Co	Securing unit for crane's operating linkage - is actuated when predetermined maximum load moment is exceeded
DE2402033A1 (en) *	1974-01-17	1975-07-31	Siegfried Dipl Ing Dr In Gross	Lorry-mounted crane overload protection system - has delockable non-return valves in pipes to all hydraulic cylinders
US4119118A (en) *	1977-01-13	1978-10-10	Walter Kidde & Company, Inc.	Automatic machine motion restricting mechanism
FR2418766A1 (en) *	1978-03-01	1979-09-28	Michel Gutierrez	IMPROVEMENT IN HYDRAULIC CONTROLLED LIFTING DEVICES
FR2419899A1 (en) *	1978-03-17	1979-10-12	Haulotte Arthur	Automatic overload or end stop for crane - has solenoid-operated valve to release fluid without moving control levers
GB2078197A (en) *	1980-06-04	1982-01-06	Hiab Foco Ab	Load limiting device

Also Published As

Publication number	Publication date
ES500544A0 (en)	1982-02-01
DK128581A (en)	1981-09-22
ES8202316A1 (en)	1982-02-01
DE3171768D1 (en)	1985-09-19
US4411368A (en)	1983-10-25
EP0037348B1 (en)	1985-08-14
EP0037348A2 (en)	1981-10-07

Legal Events

Date	Code	Title	Description
1981-08-08	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1981-10-07	AK	Designated contracting states	Designated state(s): AT BE CH DE GB IT LU NL SE
1982-06-10	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1982-08-11	AK	Designated contracting states	Designated state(s): AT BE CH DE GB IT LU NL SE
1982-11-03	17P	Request for examination filed	Effective date: 19820826
1985-05-06	ITF	It: translation for a ep patent filed	Owner name: JACOBACCI & PERANI S.P.A.
1985-06-14	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1985-08-14	AK	Designated contracting states	Designated state(s): AT BE CH DE GB IT LI LU NL SE
1985-08-14	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: AT Effective date: 19850814
1985-08-14	REF	Corresponds to:	Ref document number: 14866 Country of ref document: AT Date of ref document: 19850815 Kind code of ref document: T
1985-09-19	REF	Corresponds to:	Ref document number: 3171768 Country of ref document: DE Date of ref document: 19850919
1986-03-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19860331 Ref country code: LI Effective date: 19860331 Ref country code: CH Effective date: 19860331
1986-03-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19860331 Year of fee payment: 6
1986-06-09	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1986-06-09	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1986-07-30	26N	No opposition filed
1986-11-28	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1987-09-30	BERE	Be: lapsed	Owner name: MANJOT ROGER Effective date: 19870331
1987-10-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19871001
1987-11-16	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1989-03-14	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19890314 Year of fee payment: 9
1989-03-31	ITTA	It: last paid annual fee
1989-03-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19890331
1989-03-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19890331 Year of fee payment: 9
1989-04-03	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19890403 Year of fee payment: 9
1990-03-17	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19900317
1990-03-18	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19900318
1990-11-14	GBPC	Gb: european patent ceased through non-payment of renewal fee
1990-12-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19901201
1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 81420036.6 Effective date: 19910110

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