EP2003085B1 - Grue améliorée qui peut être assemblée sur un véhicule spécifique - Google Patents

Grue améliorée qui peut être assemblée sur un véhicule spécifique Download PDF

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Publication number
EP2003085B1
EP2003085B1 EP08154651.7A EP08154651A EP2003085B1 EP 2003085 B1 EP2003085 B1 EP 2003085B1 EP 08154651 A EP08154651 A EP 08154651A EP 2003085 B1 EP2003085 B1 EP 2003085B1
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EP
European Patent Office
Prior art keywords
support base
crane according
crane
stabilizer arm
extends
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Active
Application number
EP08154651.7A
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German (de)
English (en)
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EP2003085A2 (fr
EP2003085A3 (fr
Inventor
Gianni Zambelli
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Effer SpA
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Effer SpA
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Publication of EP2003085A3 publication Critical patent/EP2003085A3/fr
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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

Definitions

  • the present invention refers to a crane for lifting loads, which can be mounted on a relative vehicle and in particular mounted on a truck.
  • vehicle stabilizer means consisting of a first and a second telescopic stabilizer arms which extend outwards in front of the driver's cab of the truck in order to stabilize the front part of the truck during lifting operations.
  • These first and second front stabilizer arms of the lorry extend outwards on opposite sides of a support base supporting the lifting boom of the crane and consist of arms which extend, retract and rotate, thanks to actuating means, with respect to the support base and which, in their rest position, are longitudinally aligned with the vehicle driver's cab, in particular, alongside the support base of the lifting boom.
  • This stabilizing system with rotating telescopic arms is used in combination with a load lifting boom which also extends in its rest position lengthways to the vehicle to the rear of the driver's cab.
  • This type of truck or truck-mounted crane is designed for lifting only and the body or flat bed to the rear of the driver's cab can only be used for stowing the lifting boom in its rest position and for no other purposes.
  • this type of crane uses an excessive number of actuators for operating the stabilizing elements. Similar stabilizing means are used to stabilize the rear part of the truck.
  • Another known solution involves the use of a lifting boom which in its folded rest position is located crossways with respect to the cab so that other loads can be carried to the rear of the cab on the truck bodywork.
  • rotary telescopic arms to the front of the cab are not used as stabilizers because in this case they are provided with stabilizer jacks which are fixed to the front of the truck driver's cab directly to the truck support structure in such a way that the structure underneath the driver's cab requires structural stiffening so that the stabilizer jacks can be conveniently anchored to the load bearing structure of the truck.
  • EP 1454 872 discloses a crane for lifting loads which can be mounted on a corresponding vehicle having a longitudinal axis, in particular a truck, comprising a support base of the crane mounted on the vehicle, from which extend vehicle stabilizing means comprising a first extending arm and a second stabilizing arm carrying respective ground support means, both extending transversally to the longitunal axis of the vehicle.
  • WO 2006/040658 discloses discloses a support base for a crane to be mounted to be on the vehicle, from which extend vehicle stabilizing means comprising a first extending arm and a second stabilizing arm carrying respective ground support means, both extending obliquely to the longitudinal axis of the vehicle and vertically staggered in order not to interfere at the respective rest position.
  • the figures show a preferred embodiment 10 of a load lifting crane, in particular a telescopic boom crane, which is mounted on a vehicle 11 comprising a truck with, as shown in the figures, a driver's cab 11a and a flat bed 11b, partly illustrated in the enclosed figures.
  • a load lifting crane in particular a telescopic boom crane
  • vehicle 11 comprising a truck with, as shown in the figures, a driver's cab 11a and a flat bed 11b, partly illustrated in the enclosed figures.
  • the present crane 10 is mounted close to the rear of the driver's cab 11a and could also be mounted on the truck on the rear end of the flat bed 11b.
  • the present crane 10 comprises, as described more fully below, a lifting boom 13 of a folding type which in its rest position extends crossways to the longitudinal axis "L" of the truck.
  • the lifting crane 13 has a main element 13a on which is jointed or folded a boom element 13b comprising a plurality of telescopic elements 13'b and 13c which can be extended and retracted by the action of the corresponding hydraulic cylinders 13d.
  • the boom element 13b of the crane extends, in its rest position, lengthways alongside the main element 13a connected to the slewing rack of the crane.
  • the crane 10 comprises a support base 12, connected to the longitudinal support members 11', 11' of the vehicle 11, to which the lifting boom is connected by means of a corresponding slewing rack 15 which rotates around a vertical axis and from which the corresponding vehicle stabilizing means are extended when the crane is working.
  • vehicle stabilizing means comprise a first extending arm, marked with the reference number 14, which carries the corresponding ground supports which in turn comprise a vertical jack cylinder 16 with a foot pad 16a.
  • the support base 12 extends in a substantially linear direction along the longitudinal axis "L" of the vehicle and has a front face 12a, a back face 12b and opposing side or lateral faces 12c, 12d.
  • the extending stabilizer arm 14 can be connected, in a fixed manner, to the support base 12 and extends outwards from the support base 12 at an angle "A" with respect to the longitudinal direction "L" of the vehicle.
  • the invention provides an arm 14 which is solidly anchored to the support base 12 and is able to stabilise the vehicle in the area in front of the driver's cab 11a as illustrated in Figure 7A .
  • the present stabilising means 14 must be able to rest on the ground lengthways beyond the rear end of the truck thereby making the truck more stable in this situation.
  • the stabilizer arm 14 extends from the support base 12, starting from an intermediate zone of the respective side face 12c of the support base, in particular from a zone of the side face 12c of the support base 12, which is situated in the front part of the side face 12c.
  • the stabilizer arm 14 is part of the support base 12 structure and in particular of the intermediate zone of the support base 12.
  • the stabilizer arm 14 defines part of the structure of the support base 12 at or close to the zone of the crown wheel 15' of the slewing rack of the lifting crane 13.
  • the stabilizer arm 14 has a tail end 14', which extends outwards from the support base 12 at the side 12d which is opposite to the side 12c from which the arm 14 also extends.
  • the tail end 14' of the stabilizer arm 14 extends from an intermediate and rear zone of the side face 12d of the support base 12.
  • the stabilizer arm 14 extends crossways and diagonally through the support base 12.
  • the invention provides a stabilizer arm 14 which has a considerable length when fully extended and thereby provides effective vehicle stabilizing in the area in front of the vehicle.
  • the stabilizer arm 14 has a plurality of extension sections and, in particular, has an element 14a which is fixed to the support base 12 thus defining part of this structure, and one or more extension elements, and in particular a first and a second extension elements 14b and 14c which are connected in a mobile manner to the fixed element and to each other.
  • the fixed extension 14a receives coaxially inside its interior the first mobile extension 14b and the second mobile extension 14c which in turn is coaxially contained inside the second mobile extension 14b and which carries on its free end 14" the ground jack 16.
  • each of the elements 14a, 14b and 14c of the stabilizer arm 14 has a quadrangular cross-section and is longitudinally linear or straight.
  • the element 14a of the stabilizer arm 14, which is fixed to the support base 12, has a head end 14'a from which one or more of the extension sections of the arm 14 extend and where the head end 14'a of the fixed element 14a extends out of the support base 12 beyond the respective face 12c of the support base.
  • the fixed element of the stabilizer arm 14 has a head end 14'a which extends from a respective side face 12c of the support base and in particular from the front part of the side face 12c.
  • the fixed element 14a of the stabilizer means 14 has a tail end 14' which extends from the side 12d of the base 12 which is opposite to the side 12c from which the stabilizer arm 14 extends.
  • the fixed element 14a of the stabilizer arm 14 has, advantageously, a height which is substantially the same as the height of the support base 12.
  • the fixed element 14a of the stabilizer means 14 defines part of the structure of the support base 12 and extends diagonally to this and, in particular, diagonally to the longitudinal axis "L".
  • the fixed element 14a of the stabilizer means 14 extends from the fixing zone 15' for the rack of the lifting boom 13 but remains under this and in particular remains under the rear zone 15" of this one.
  • the fixed element 14a has a tail end 14' which extends out of the support base at the intermediate zone of the side face 12d of the support base and in particular at the zone to the rear of the side face 12d of the support base 12.
  • the fixed element 14a of the stabilizer arm 14 has a tail section 14' which is positioned in a longitudinal direction to the rear of the tail end 14'a of the same fixed element 14.
  • the crane 12 has a lifting boom 13 which in its rest position has an end 13', in particular defined by the corresponding end of the boom element 13b which extends below and alongside the support base 12.
  • end 13' of the support boom in its folded state extends alongside the side face 12c of the support base 12.
  • the lifting boom 13 in its rest position has a lower end 13' which is located close to the extension zone of the stabilizer arm 14.
  • the stabilizer arm 14 has a fixed element 14a which extends below the lifting boom 13 in the crossways rest position, in particular below the main part 13a of the lifting boom, while the boom part 13b is vertically positioned to the side of the part 14'a of the stabilizer fixed element 14a.
  • the stabilizer arm 14 has an end 14'a from which the mobile elements 14b, 14c extend and extend below a corresponding end 13'a of the main fixing element 13b of the lifting boom 13 in the crossways rest position.
  • the end 14'a of the stabilizer arm 14 is, as can be seen in the figures, vertically aligned or substantially aligned to this end 13'a of the element 13b of the crane 13 in its folded rest position.
  • the rear part 13" of the lifting boom 13 in its rest position is also located above the tail end 14' of the fixed element of the stabilizer arm 14.
  • the tail end 14' of the fixed element is vertically aligned or substantially aligned to the rear end of the telescopic or lifting part 13b of the lifting boom.
  • the support base 12 has on its side face 12c a recessed portion defined by a surface inclined at an angle to the vertical where this recess defines a seat or zone for the end 13' of the lifting boom 13 in its rest position.
  • This recess is marked with the reference number 17 in the enclosed figures and the inclined surface, delimited by the recess, is marked with the reference number 17a.
  • the section 14a of the fixed element of the stabilizer arm 14 projects from the support base 12 immediately to the side of the recess 17 and extends along the inside of the base 12 to the rear of the inclined surface 17a, in other words, in a position immediately to the rear of the seat 17 for housing the corresponding end 13' of the lifting boom in its rest condition.
  • the side face 12c of the base 12 has a rear portion 12'c which is longitudinally aligned to the portion 12"c which is in front of the recess 17.
  • a second stabilizing arm marked with the reference number 18 advantageously in the form of an extending arm comprising a plurality of elements and, in particular, a base or main element 18a which is connected rotationally to the support base 12 by means of a vertical pin 20 so as to permit the rotating stabilizer arm to rotate from a stabilizing position angled with respect to the longitudinal axis "L" extending forwards alongside the driver's cab 11a and a retracted, rest position where the arm 18a is located to the side of the base 12 positioned in a longitudinal direction as indicated in particular in Figures 3 to 5 .
  • the rotating stabilizer arm 18 In this retracted position, the rotating stabilizer arm 18, as shown in Figure 3 , has its rear end 18'a of the main element on the extension and alongside the tail portion 14' of the fixed element 14a of the first stabilizer arm 14.
  • the rotating arm pivots on a front and side end of the support base 12 and has second and third extending sections 18b and 18c and where the latter has at its free end means for resting on the ground comprising a vertical jack cylinder 22 fitted with foot pad 24 resting on the ground.
  • the rotating arm 18 in its extended working position extends to the side of the driver's cab 11a of the vehicle side opposite to the side on which the fixed arm 14 extends and is oriented at an angle B with respect to the longitudinal axis of the vehicle.
  • the extended working position is reached by rotating the arm 18 forwards, starting from a position where the extension sections are retracted as shown in figures 2 to 5 and where the arm is located substantially lengthways alongside the support base.
  • the angle B between the stabilizer arm 18 in its work position and in its longitudinal position is an angle of less than 90°. It is clear in particular from Figure 7A that it is provided a lifting crane with a considerable outreach or extension of the lifting boom and at the same time provides optimum vehicle stability also in the area to the front of the vehicle.
  • the end 18'a of the main extension element of the second stabilizing arm 18 is located, in its rest position, below the rear portion or end 13" of the lifting boom 13 and in particular below the end 13" of the telescopic element 13c of the lifting boom 13.
  • the rotating stabilizer arm 18 comprises a plurality of extensions coaxially contained one inside the other.
  • the extension 18c is contained inside the extension 18b which in turn is contained inside the jointed extension 18a; the extensions or elements of the stabilizer arm 18 have a matching quadrangular section and extend in a straight line.
  • the rotating extension 18 can be extended longitudinally beyond the rear edge of the crane truck thus advantageously providing stabilising in this area.
  • the support base 12 has the form of a box section body comprising first and second profiles 121 and 122, of a rectangular cross-section, which extend forward to the base element 12a of the diagonal stabilizer 12, extending longitudinally and parallel to each other but having different lengths.
  • the front profiles 121, 122 of the box section body 12 have front projecting ends 121', 122' and extend until they reach the corresponding side wall of the fixed profile 14a of the diagonal stabilizer 14.
  • the support base 12 further comprises first and second rectangular section profiles 123, 124, which extend to the rear of the base element 12a of the diagonal stabilizer 12 and which also extend longitudinally and parallel to each other on the extension of the front profiles 121, 122 and which are also of different lengths.
  • the rear profiles 123, 124 of the box section body 12 each have projecting front ends 123', 124' and also extend until they reach the corresponding side wall of the fixed profile 14a of the diagonal stabilizer 14.
  • the base box section body 12 has an upper plate 125 which is applied above the upper wall of the profiles 121, 122, 123, 124 and which has a suitably shaped profile and a lower plate 126 which has a central portion 126a which extends between the lower walls of the profiles 121, 122, 123, 124 and a side portion 126b extending outside the same lower walls of the profiles 122 and 124.
  • the side wall 12a of the base 12 coincides with the corresponding side wall of the profiles 121 and 123.
  • the outer parts of the box section body 12 comprise a front vertical wall 12a, a rear vertical wall 12b and counter-opposing side walls 12c, 12d where the side wall 12a has a recess 17 for housing the corresponding end 13' of the lifting boom in its rest position and where the side wall 12d has a longitudinal profile or design which is recessed at the rear part of the same wall and where the tail end 14' of the diagonal stabilizer arm extends beyond the rear part 12"d of the wall 12d and terminates in a position which is substantially aligned with the front part 12'd as shown in Figure 3 .
  • the front part 12'd of the side wall 12d is situated laterally to the outside of the rear part 12"d of the same wall 12 to which it is connected by a curved radius section 12e.
  • the rear profiles 123, 124 can be fixed to corresponding, aligned longitudinal support members for the rear stabilizers which are not shown in the enclosed figures.
  • the joint pin 20 of the second stabilizer arm 18 is supported by two horizontal plates 127, 129 projecting sideways from the part 12d of the wall 121 at the front edge of the base 12.
  • a section of quadrangular, tubular profile 128 supports the hinge plate 127 in a position which is raised with respect to the upper surface 125 of the base 12.
  • the present invention provides a crane structure which provides considerable stability for the vehicle mounting the crane. It enables optimum use to be made of the space available on the vehicle for loading other elements. It also enables a relatively long outreach for the lifting boom.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (19)

  1. Grue (10) destinée à soulever des charges pouvant être montée sur un véhicule correspondant (11) ayant un axe longitudinal (L), en particulier un camion, comprenant une base de support (12) de la grue montée sur le véhicule (11), duquel se développent des moyens de stabilisation du véhicule comprenant un premier bras extensible (14) et un second bras de stabilisation (18) supportant des moyens de support au sol (16, 16a ; 22, 24) respectifs ; ledit premier bras stabilisateur extensible (14) étant fixé à la base de support (12) et inclut un élément fixé à la base (14a) ayant une hauteur étant substantiellement identique à la hauteur de la base de support (12) ; et ledit second bras stabilisateur (18) se développant du côté opposé (12d) de la base de support (12) par rapport au premier bras stabilisateur (14) et étant dans sa position de repos situé le long de la base de support (12) ; caractérisée en ce que le premier bras stabilisateur extensible (14) se développe à partir de la base de support (12) orientée selon un certain angle (A) par rapport à la direction longitudinale (L) diagonalement à la base de support (12) ; et en ce que ledit second bras stabilisateur (18) a la forme d'un bras rotatif qui pivote par rapport à la base de support (12).
  2. Grue selon la revendication 1, caractérisée en ce que le bras stabilisateur (14) fixé à la base de support (12) se développe à partir de la base de support (12) le long de la cabine du conducteur (11b) du véhicule.
  3. Grue selon l'une des revendications précédentes, caractérisée en ce que le bras stabilisateur (14) se développe à partir d'une face latérale (12c) de la base de support (12).
  4. Grue selon la revendication 3, caractérisée en ce que le bras stabilisateur (14) se développe à partir d'une zone intermédiaire de la face latérale (12c) respective de la base de support (12).
  5. Grue selon l'une quelconque des revendications précédentes 3 et 4, caractérisée en ce que le bras stabilisateur (14) se développe dans une zone située devant la face latérale (12c) respective de la base de support (12).
  6. Grue selon l'une quelconque des revendications précédentes, caractérisée en ce que le bras stabilisateur (14) possède un élément fixe (14a) fixé à la base de support (12) ainsi qu'un ou plusieurs (14b, 14c) éléments extensibles reliés de façon mobile à l'élément fixe.
  7. Grue selon la revendication 6, caractérisée en ce que l'élément fixe (14a) fixé à la base de support (12) possède une extrémité de déchargement (14'a) de laquelle un ou plusieurs éléments d'extension (14b, 14c) se développent hors de la base de support (12).
  8. Grue selon l'une quelconque des revendications précédentes 6 et 7, caractérisée en ce que l'élément fixe (14a) possède une extrémité de déchargement (14'a) qui se développe de la face latérale respective (12c) de la base de support (12).
  9. Grue selon la revendication 8, caractérisée en ce que l'élément fixe (14a) possède une extrémité de déchargement (14'a) qui se développe à partir d'une zone intermédiaire de la face latérale respective de la base de support (12).
  10. Grue selon l'une quelconque des revendications précédentes, caractérisée en ce que la grue possède une flèche de levage (13) qui, dans sa position de repos, possède une extrémité (13') qui se développe le long de la base de support (12).
  11. Grue selon l'une quelconque des revendications précédentes, caractérisée en ce que la grue possède une flèche de levage (13) qui, dans sa position de repos, possède une extrémité correspondante (13'a) de l'élément principal de fixation de la base (13a) qui se développe au dessus d'une extrémité respective (14'a) du bras stabilisateur (14).
  12. Grue selon la revendication 11, caractérisée en ce que l'extrémité (14'a) du bras stabilisateur (14) est verticalement alignée ou substantiellement alignée par rapport à l'extrémité (13'a) de l'élément principal (13a) fixant la base à la flèche de levage (13).
  13. Grue selon l'une quelconque des revendications précédentes de 10 à 12, caractérisée en ce que le bras stabilisateur (14) se développe de la base de support (12) au niveau du côté de la zone de positionnement d'une extrémité correspondante (13'a) de la flèche de levage de la grue.
  14. Grue selon l'une quelconque des revendications précédentes de 10 à 13, caractérisée en ce que la base de support (12) possède un renfoncement (17) destiné à positionner l'extrémité correspondante (13') de la flèche de levage de la grue.
  15. Grue selon la revendication 14, caractérisée en ce que le renfoncement est défini par une surface inclinée (17a) où l'extrémité inférieure de la flèche de levage est positionnée dans sa condition de repos.
  16. Grue selon l'une quelconques des revendications précédentes, caractérisée en ce que le bras stabilisateur (14) possède une extrémité en queue (14') se développant à partir d'une zone intermédiaire de la face latérale (12d) de la base de support (12).
  17. Grue selon l'une quelconques des revendications précédentes, caractérisée en ce que le bras stabilisateur (14) possède un premier, un second et un troisième élément (14a, 14b, 14c) coaxiaux réciproquement.
  18. Grue selon l'une quelconques des revendications précédentes 16 et 17, caractérisée en ce que le bras stabilisateur (18), dans sa position de repos, est situé le long de l'extrémité en queue (14') du bras stabilisateur incliné (14).
  19. Grue selon l'une quelconques des revendications précédentes de 16 à 18, caractérisée en ce que le bras stabilisateur (18), dans sa position de repos, est situé sous la flèche de levage (13).
EP08154651.7A 2007-04-19 2008-04-16 Grue améliorée qui peut être assemblée sur un véhicule spécifique Active EP2003085B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO20070290 ITBO20070290A1 (it) 2007-04-19 2007-04-19 Gru perfezionata associabile ad un corrispondente veicolo.

Publications (3)

Publication Number Publication Date
EP2003085A2 EP2003085A2 (fr) 2008-12-17
EP2003085A3 EP2003085A3 (fr) 2010-12-22
EP2003085B1 true EP2003085B1 (fr) 2016-03-16

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EP08154651.7A Active EP2003085B1 (fr) 2007-04-19 2008-04-16 Grue améliorée qui peut être assemblée sur un véhicule spécifique

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EP (1) EP2003085B1 (fr)
DK (1) DK2003085T3 (fr)
IT (1) ITBO20070290A1 (fr)
PT (1) PT2003085E (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK149388C (da) * 1983-12-16 1986-10-27 Hiab Export As Krankonsol til montering over en lastbils chassisvanger
US5706960A (en) * 1995-02-14 1998-01-13 Pioneer Engineering Extended perimeter x-shaped outrigger assembly for cranes
DE19736108A1 (de) * 1997-08-21 1999-02-25 Putzmeister Ag Fahrbare Arbeitsmaschine mit teleskopierbaren Stützauslegern
DE10032622A1 (de) * 2000-07-07 2002-01-17 Putzmeister Ag Stützausleger für fahrbare Arbeitsmaschinen und Autobetonpumpen mit solchen Stützauslegern
CN2613466Y (zh) * 2003-01-13 2004-04-28 安徽省三色照明股份有限公司 安装在载货汽车上的车载起重机
EP1454872B1 (fr) * 2003-02-14 2005-05-11 Palfinger AG Dispositif de fixation pour le transport
ITBO20040622A1 (it) * 2004-10-13 2005-01-13 Antonelli Srl Dispositivo per la stabilizzazione di un veicolo in stazionamento

Also Published As

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ITBO20070290A1 (it) 2008-10-20
PT2003085E (pt) 2016-06-24
EP2003085A2 (fr) 2008-12-17
DK2003085T3 (en) 2016-07-04
EP2003085A3 (fr) 2010-12-22

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