EP0331856A1 - Zusammenlegbarer Kran mit automatischer und schneller Aufrichtung - Google Patents

Zusammenlegbarer Kran mit automatischer und schneller Aufrichtung Download PDF

Info

Publication number
EP0331856A1
EP0331856A1 EP88420074A EP88420074A EP0331856A1 EP 0331856 A1 EP0331856 A1 EP 0331856A1 EP 88420074 A EP88420074 A EP 88420074A EP 88420074 A EP88420074 A EP 88420074A EP 0331856 A1 EP0331856 A1 EP 0331856A1
Authority
EP
European Patent Office
Prior art keywords
mast
foot
boom
arrowhead
articulated
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
EP88420074A
Other languages
English (en)
French (fr)
Other versions
EP0331856B1 (de
Inventor
Roger Commeau
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.)
Manitowoc Crane Group France SAS
Original Assignee
Potain 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 Potain SA filed Critical Potain SA
Priority to EP88420074A priority Critical patent/EP0331856B1/de
Priority to AT88420074T priority patent/ATE68772T1/de
Priority to ES198888420074T priority patent/ES2027030T3/es
Priority to DE8888420074T priority patent/DE3865835D1/de
Publication of EP0331856A1 publication Critical patent/EP0331856A1/de
Application granted granted Critical
Publication of EP0331856B1 publication Critical patent/EP0331856B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/26—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 specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • 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
    • B66C23/54—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 with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
    • B66C23/545—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 with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors with arrangements for avoiding dead centre problems during cylinder motion

Definitions

  • the present invention relates to a transportable crane whose folding and deployment can be carried out quickly in a fully automatic manner. It relates more particularly, although not exclusively, to a crane whose boom, itself collapsible, has in the deployed position, a relatively large overall length.
  • the problem of the folding crane is twofold.
  • the overall dimensions of the crane should be compatible with the size limits fixed by the Highway Code, which allows rapid transport in ordinary road traffic.
  • the crane once deployed in the working position on the site, the crane must have a mast as high as possible and a boom with maximum reach.
  • the folding and deployment operations must be as simple as possible and take place quickly.
  • a first approached solution to this problem is known, for example from French patent 2,548,646.
  • This known system provides for a mast in two parts (mast foot and mast head) on which is articulated an arrow, also in two parts (arrowhead and arrowhead).
  • a single cylinder allows the deployment and folding of the assembly to be controlled, thanks to an articulated rear link and a rear cable extended by a stay cable.
  • the circulation of this rear cable is guided by a system of pulleys and articulated punches which are located in the area where the jib foot is articulated on the top of the mast head.
  • This known device however has the drawback of considerably limiting the maximum length that can be used for the element forming the arrowhead. Indeed, during the deployment maneuver, the arrowhead moves away from the arrowhead against the underside of which it was folded, and this as the arrowhead in turn lifts up. above the masthead on the top of which it is articulated. Thus, from the start of the deployment operation, the end of the arrowhead moves along the masthead, in the immediate vicinity thereof that it sweeps in the longitudinal direction.
  • the object of the present invention is to avoid these drawbacks by producing a folding crane of the aforementioned type, the element of which forms the arrowhead has a useful length substantially equal to that of the element which forms the boom foot.
  • the invention aims to produce such a foldable crane whose deployment is carried out fully automatically in a very short time and with a small footprint.
  • a folding crane comprises a lifting mast on the top of which is articulated a jib foot, the end of which carries the articulation axis of an arrow point, while a cable system makes it possible to control the deployment of the boom and mast, and it is characterized in that, moreover, there is provided between the arrowhead and the mast, a cable of constant length, fitted between two sets of pulleys whose variable spacing is positively controlled by means successively causing its increase then its decrease throughout the deployment maneuver or the folding maneuver, which has the effect of delaying the speed of opening of the angle of the jib foot / arrowhead at the start of deployment of the crane, whereas on the contrary, at the end of deployment, when the jib foot has already moved away from the mast, the speed of unfolding of the jib tip until it is aligned with the jib foot, is increased.
  • the first set of pulleys for hauling is located at the rear of the articulation of the jib foot on the top of the mast.
  • the second set of pulleys of hauling is arranged transversely to slide in a substantially longitudinal slide, integral with the head of the mast.
  • the means for controlling the sliding of the second train of pulleys in the slide comprise, on the one hand a pusher articulated on the transverse axis of the second train of pulleys to which it is perpendicular, while its other end is articulated on the head of a connecting rod whose head is on the other hand integral the arrow foot with which it pivots on the top of the mast, so that there is materialized a mechanism with three axes of articulation parallel to each other, this mechanism deforming on either side of a neutral position for which the three axes are aligned, namely: - the axis by which the pusher is articulated on the second set of pulleys of hauling; - the axis by which the connecting rod head is articulated on the pusher; - the axis by which the connecting rod foot and the boom foot are articulated on the top of the mast.
  • the mast and the boom rise in a small footprint.
  • the variable reeving device controlled by the articulation of the boom foot, makes it possible during the first phase of lifting the boom, to prevent the opening of the point by cable compensation.
  • this allows the opening of the arrowhead on the boom foot when the angle of the mast and the boom foot reaches then exceeds a value of about 45 degrees. Therefore, the unfolding is carried out quickly without the arrowhead coming up against the mast.
  • This compensation and variability hauling system makes it possible to automate the unfolding, and above all to fold a maximum length for transport in a minimum road gauge.
  • the crane illustrated in the drawings comprises a base 1, on which is articulated, at 2, a mast foot element 3.
  • the top of the latter carries, at the rear, an axis 4, on which the base of a mast head element 5 is articulated.
  • the top of the latter carries an axis 6, on which a rigid bridge 7 is articulated, integral with the rear end 8 of a jib foot element 9.
  • the jib foot 10 carries a lower link 11, where the rear of an arrowhead element 12 is articulated.
  • a constant length cable 13 is provided between the arrowhead 12 and the mast 3, 5 which it connects. This cable 13 is mouflaged between two pulley trains 14 and 15, the spacing 16 ( Figure 6) is variable.
  • the first set of pulleys 14 has its axis 17 located behind the articulation 6. It is carried by the rigid bridge 7 which rocks around the axis 6.
  • the second train of pulleys 15 has its axis 18 which is arranged transversely in a substantially longitudinal slide 19, integral with the mast head 5.
  • a pusher 20 On the transverse axis 18, is articulated one end of a pusher 20 which is perpendicular thereto.
  • the other end of the pusher 20 is articulated at 21 on the head of a connecting rod 22, the foot of which pivots about 1 ′ axis 6, at the same time as the bridge 7, of which this connecting rod 22 is rigidly secured.
  • the cable 13 passes over a pulley 23, carried by the rear 8 of the jib foot 9, then over a pulley 24, carried by the lower chord of the jib foot 9 before the axis 11, to finally anchor at 25, on the arrowhead 12.
  • this device makes it possible to give the jib tip element 12, a length 37 which may be greater than 85% of the length 38 of the jib foot 9.
  • the opening of the angle 39 between the jib foot 9 and the jib tip 12 is delayed at the start of deployment of the crane ( Figures 3 and 4), on the contrary to be accelerated at the end ( Figures 7 and 8).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Jib Cranes (AREA)
EP88420074A 1988-03-02 1988-03-02 Zusammenlegbarer Kran mit automatischer und schneller Aufrichtung Expired - Lifetime EP0331856B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP88420074A EP0331856B1 (de) 1988-03-02 1988-03-02 Zusammenlegbarer Kran mit automatischer und schneller Aufrichtung
AT88420074T ATE68772T1 (de) 1988-03-02 1988-03-02 Zusammenlegbarer kran mit automatischer und schneller aufrichtung.
ES198888420074T ES2027030T3 (es) 1988-03-02 1988-03-02 Grua plegable con desplegado rapido automatico.
DE8888420074T DE3865835D1 (de) 1988-03-02 1988-03-02 Zusammenlegbarer kran mit automatischer und schneller aufrichtung.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88420074A EP0331856B1 (de) 1988-03-02 1988-03-02 Zusammenlegbarer Kran mit automatischer und schneller Aufrichtung

Publications (2)

Publication Number Publication Date
EP0331856A1 true EP0331856A1 (de) 1989-09-13
EP0331856B1 EP0331856B1 (de) 1991-10-23

Family

ID=8200461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88420074A Expired - Lifetime EP0331856B1 (de) 1988-03-02 1988-03-02 Zusammenlegbarer Kran mit automatischer und schneller Aufrichtung

Country Status (4)

Country Link
EP (1) EP0331856B1 (de)
AT (1) ATE68772T1 (de)
DE (1) DE3865835D1 (de)
ES (1) ES2027030T3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315960A1 (de) * 1993-05-12 1994-11-17 Liebherr Werk Biberach Gmbh Kran mit teleskopierbarem Turm
EP1084982A1 (de) * 1999-09-17 2001-03-21 Liebherr-Werk Biberach GmbH Turmdrehkran
US6276541B1 (en) * 1999-02-26 2001-08-21 Potain Device for simultaneously unfolding or folding crane jib tip elements

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436097A1 (fr) * 1978-09-16 1980-04-11 Pingon Int Grue repliable perfectionnee, a montage rapide
FR2457241A3 (fr) * 1979-05-24 1980-12-19 San Marco Spa Grue a tour a elements telescopiques equipee d'un bras articule a deploiement automatique
FR2546496A1 (fr) * 1983-05-25 1984-11-30 Cattaneo Spa Grue articulee a redressement automatique
FR2548646A1 (fr) * 1983-07-05 1985-01-11 Cadillon Grue repliable a deploiement rapide
DE3441573A1 (de) * 1984-11-14 1986-05-15 Peiner Hebe- Und Transportsysteme Gmbh, 5500 Trier Turmkran mit geteiltem ausleger
DE3633582A1 (de) * 1985-10-02 1987-04-16 Cattaneo Luigi Spa Gelenkkran mit sich automatisch aufrichtendem turm und verlaengerndem ausleger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436097A1 (fr) * 1978-09-16 1980-04-11 Pingon Int Grue repliable perfectionnee, a montage rapide
FR2457241A3 (fr) * 1979-05-24 1980-12-19 San Marco Spa Grue a tour a elements telescopiques equipee d'un bras articule a deploiement automatique
FR2546496A1 (fr) * 1983-05-25 1984-11-30 Cattaneo Spa Grue articulee a redressement automatique
FR2548646A1 (fr) * 1983-07-05 1985-01-11 Cadillon Grue repliable a deploiement rapide
DE3441573A1 (de) * 1984-11-14 1986-05-15 Peiner Hebe- Und Transportsysteme Gmbh, 5500 Trier Turmkran mit geteiltem ausleger
DE3633582A1 (de) * 1985-10-02 1987-04-16 Cattaneo Luigi Spa Gelenkkran mit sich automatisch aufrichtendem turm und verlaengerndem ausleger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315960A1 (de) * 1993-05-12 1994-11-17 Liebherr Werk Biberach Gmbh Kran mit teleskopierbarem Turm
US6276541B1 (en) * 1999-02-26 2001-08-21 Potain Device for simultaneously unfolding or folding crane jib tip elements
EP1084982A1 (de) * 1999-09-17 2001-03-21 Liebherr-Werk Biberach GmbH Turmdrehkran

Also Published As

Publication number Publication date
ATE68772T1 (de) 1991-11-15
ES2027030T3 (es) 1992-05-16
DE3865835D1 (de) 1991-11-28
EP0331856B1 (de) 1991-10-23

Similar Documents

Publication Publication Date Title
EP0536060B1 (de) Selbsttätig klappbarer Kranausleger
EP0733584A1 (de) Automatische Aufrichtvorrichtung für einen Kran mit zusammenklappbarem Ausleger
EP1184328B1 (de) Seilanordnung für einen Turmkran
EP1364906B1 (de) Turmkran mit zusammenklappbarem Gegenausleger
EP1301431B1 (de) Kran mit aus gliedern bestehendem kranarm
EP3816091B1 (de) Turmkran mit automatisch ein- und ausklappbarem gegenausleger
EP0331856B1 (de) Zusammenlegbarer Kran mit automatischer und schneller Aufrichtung
EP0888997B1 (de) Turm, zusammenklappbar in drei Elemente, mit Vorrichtung zum Zusammenklappen/Aufklappen für einen Turmkran
FR2756551A1 (fr) Procede et dispositif pour le montage des tirants des fleches de grues a tour
EP1072553B1 (de) Zusammenklappvorrichtung eines Kranauslegers mit ineinandersetzbaren Elementen
FR2905051A1 (fr) Materiel de recolte des fruits portes par des arbres.
EP0360702B1 (de) Zusammenlegbarer Kran mit einem Ausleger, bestehend aus zwei oder drei gelenkig miteinander verbundenen Elementen
EP1327601B1 (de) Steuerungsverfahren und -vorrichtung zum sicheren Zusammenklappen und Aufklappen eines Turmkrans
FR2546496A1 (fr) Grue articulee a redressement automatique
EP0536061A1 (de) Automatisch zusammenklappbarer Turmkran
FR2463740A1 (fr) Grue automobile a fleche telescopique
FR2548646A1 (fr) Grue repliable a deploiement rapide
EP0473518B1 (de) Selbstaufstellender Kran mit seitlich klappbarem Ausleger
EP1927570B1 (de) Kranmast mit Gegengewicht
EP1352870B1 (de) Vorrichtung zum Anheben und Aufklappen von dem Mast und zum Anheben von dem Ausleger eines Kranes
EP0733583B1 (de) Selbstaufstellender Kran mit seitlich klappbarem Ausleger
FR2761971A1 (fr) Grue a montage automatise a fleche pliable, avec repliage lateral pour transport
EP1057776B1 (de) Kran mit aus Gliedern bestehendem Kranarm
CH367957A (fr) Grue à mât relevable
FR2541559A1 (fr) Semoir a chassis repliable lateralement

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19891218

17Q First examination report despatched

Effective date: 19910312

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: POTAIN

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19911023

Ref country code: GB

Effective date: 19911023

REF Corresponds to:

Ref document number: 68772

Country of ref document: AT

Date of ref document: 19911115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3865835

Country of ref document: DE

Date of ref document: 19911128

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2027030

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950113

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19950118

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19950119

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19950125

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950126

Year of fee payment: 8

EAL Se: european patent in force in sweden

Ref document number: 88420074.2

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19950315

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19950330

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19960302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960303

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960304

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19960331

Ref country code: CH

Effective date: 19960331

Ref country code: BE

Effective date: 19960331

BERE Be: lapsed

Owner name: POTAIN

Effective date: 19960331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19961129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19961203

EUG Se: european patent has lapsed

Ref document number: 88420074.2

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050302