EP2107034A1 - Stabilizing apparatus for vehicles - Google Patents

Stabilizing apparatus for vehicles Download PDF

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Publication number
EP2107034A1
EP2107034A1 EP09004797A EP09004797A EP2107034A1 EP 2107034 A1 EP2107034 A1 EP 2107034A1 EP 09004797 A EP09004797 A EP 09004797A EP 09004797 A EP09004797 A EP 09004797A EP 2107034 A1 EP2107034 A1 EP 2107034A1
Authority
EP
European Patent Office
Prior art keywords
segment
ground
frame
configuration
vehicle
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.)
Withdrawn
Application number
EP09004797A
Other languages
German (de)
English (en)
French (fr)
Inventor
Paolo Balugani
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.)
PM Oil and Steel SpA
Original Assignee
Oil and Steel SpA
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 Oil and Steel SpA filed Critical Oil and Steel SpA
Publication of EP2107034A1 publication Critical patent/EP2107034A1/en
Withdrawn legal-status Critical Current

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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
    • 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
    • B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated

Definitions

  • This invention relates to a stabilizer apparatus for vehicles, in particular for vehicles with liftable platforms for carrying out overhead works.
  • At least four stabilizer apparatus are provided which are mounted at the four corners of the frame of the vehicle which supports a crane or a platform on which a lifting apparatus is mounted.
  • both the crane and the lifting apparatus are usually composed of a series of articulated jibs which may be extended or retracted by means of hydraulic actuators, and on the free end of the last of which a fastening member is mounted, in the case of a crane, or a platform holding one or more operators to carry out the work, in the case of lifting apparatus.
  • the known stabilizer apparatus each comprises an extendible telescopic leg, which is held in a retracted and lifted position off the ground when the vehicle is travelling along the roads, and is instead extended onto the ground when the vehicle is stopped and positioned in a working area.
  • the four feet are mounted on the vehicle at an angle, in such a way that, when they are extended towards the ground, the lower ends thereof fitted with feet move away from the centre of gravity of the vehicle by a pre-set distance to create a point of support away from the vehicle by a height which generates sufficient torque arm to contrast any tipping force of the vehicle which is caused by the raising of the centre of gravity of the vehicle when, e.g., the jibs which support a working platform are raised from their idle position to move an operator to the required working height.
  • the legs which are mounted on the frame of the vehicles at an angle stay in this position also when they are not in use, that is, when in order to allow the vehicle to move they are raised completely off the ground and retracted.
  • the known stabilizer apparatus have some drawbacks.
  • a first drawback is caused by the angled mounting arrangement of the known stabilizer apparatus, when the support feet they are fitted with touch the ground, and the hydraulic or pneumatic actuators which control them push on them to lift the vehicle off the ground, reactive forces are caused on the support feet which have transversal components, that is substantially parallel to the surface of the ground and which cause the feet to slide away from the vehicle.
  • a further drawback is caused by the length of the legs which are required to reach a resting position on the ground even when it is at an angle, the known stabilizer apparatus, when in the raised position, take up considerable space on the vehicles also on the upper part of the vehicle frame, as they extend upwards beyond the frame.
  • a further drawback is that when the legs of the known stabilizer apparatus are in the resting configuration on the ground, they constitute an obstacle since they extend off the ground and therefore persons, bicycles, motorcycles and other vehicles may knock against the legs thereof, damaging them or compromising the stability of the lifting apparatus and of the vehicle to which they are fitted, during the working phases.
  • This situation constitutes a hazard for both persons who may be injured if they accidentally knock against the legs, and for the operators inside the working platforms who are carrying out work at a height.
  • One object of this invention is to improve the
  • a further object of the invention is to provide a stabilizer apparatus for vehicles which prevents the support foot from slipping when it is in contact with the ground.
  • a further object of the invention is to provide a stabilizer apparatus for vehicles which is very compact, especially when it is in the idle position, in order to reduce the overall sizes without occupying any space in the upper area of the frame.
  • a further object of the invention is to provide a lifting apparatus for vehicles which avoids the risk of accidental knocking.
  • a further object of the invention is to provide a stabilizer apparatus for vehicles which, if necessary, increases the distance of the support points on the ground compared to the centre of gravity of the vehicle, without proportionally increasing its size.
  • a stabilizer apparatus for vehicles comprising a support leg on the ground which has a first support end facing the ground and an opposite second coupling end supported on one side of the frame of a vehicle, characterised in that said leg is divided into at least a first segment and a second segment which are mutually articulated at an articulation point positioned between said first end and said second end.
  • the stabilizer apparatus for vehicles therefore:
  • 1 is used to indicate a vehicle, in this specific case a truck, which comprises a longitudinal frame 2 which supports a driving cab 3 and a support bed 4.
  • a working platform 9 is mounted, on which one or more operators may stand when carrying out overhead works.
  • stabilizer apparatus 10 On the frame 2 four stabilizer apparatus 10 are mounted, arranged to maintain the stability of the vehicle on a resting surface, normally the ground "T", when the jibs 6, 7, 8, and the platform 9 are lifted.
  • the four stabilizer apparatus 10 are substantially positioned on the four corners of the support bed 4.
  • Each stabilizer apparatus comprises a first segment 11 and a second segment 12 which is hinged to the first segment 11 at a hinge articulation point, indicated generally as 13.
  • the articulation point is made by the coupling of an articulation pin 14, which is transversally supported on the lower end of the first segment 11, and which is engaged sliding along a slot 15, which defines a first end 15' and an opposite second end 15'', and which is obtained near an end 12' of the second segment 12, while, the opposite end 12'' of the latter, i.e. the end intended to rest on the ground "T", has a support foot 16.
  • the first segment 11 is supported telescopically in a sleeve 17 which is made integral to the frame 2 and which is therefore fixed against the latter.
  • a linear, fluid-dynamic actuator 18 shown in dotted lines in Figure 4 , which has the function of pushing the first segment 11 out of the sleeve 17 or drawing it back inside.
  • the fluid-dynamic actuator 18 has an end which is hinged to the frame 2 while the opposite end of the leg is hinged to the articulation pin 14, making it slide in the slot 15 as is better described below.
  • the second segment 12 has a cavity 19, with a semi-circumferential profile, which is obtained in an area of the end 12' which, when the second segment 12 is in the resting position on the ground "T", as shown in Figure 4 , is aligned with the first segment 11.
  • the latter has a further engaging pin 20 which, in the illustrated configuration, is intended to engage into the cavity 19, pushed by the first segment 11 sliding towards the ground "T".
  • an elastic connection element 21 is interposed which may be loaded in traction and which, when loaded, is intended to cause the rotation of the second segment 12 between an idle configuration, illustrated in Figure 3 , and a configuration ready for resting on the ground “T", as illustrated in Figure 4 .
  • connection element 21 comprises a helical spring 22, shown in dotted lines in Figure 4 , which is contained in a box-shaped protective casing 23, with a cylindrical shape.
  • the second segment 12 when it is arranged in the configuration resting on the ground, may be covered, as shown in Figure 4 , with an overlapping element 25, shown in dotted lines, which may be walked over or driven over.
  • this overlapping element 25 comprises a cover 26 which may be rested on the ground “T" and may be fixed to the ground using known means, such as e.g. nails or pegs.
  • This cover 26 has an upper surface which may be walked or driven over which has a substantially rounded profile to allow pedestrians or vehicle wheels to pass over it without the risk of tripping.
  • the stabilizer for vehicles works as follows:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
EP09004797A 2008-04-04 2009-04-01 Stabilizing apparatus for vehicles Withdrawn EP2107034A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMO20080099 ITMO20080099A1 (it) 2008-04-04 2008-04-04 Apparato stabilizzatore per veicoli

Publications (1)

Publication Number Publication Date
EP2107034A1 true EP2107034A1 (en) 2009-10-07

Family

ID=40297057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09004797A Withdrawn EP2107034A1 (en) 2008-04-04 2009-04-01 Stabilizing apparatus for vehicles

Country Status (2)

Country Link
EP (1) EP2107034A1 (it)
IT (1) ITMO20080099A1 (it)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012008864A1 (de) 2011-10-18 2013-04-18 Pacoma Gmbh Modulares Stützsystem
CN105692452A (zh) * 2016-04-08 2016-06-22 安庆市星博特电子科技有限公司 一种升降平台安装支腿辅助组件
CN112340622A (zh) * 2021-01-05 2021-02-09 河南工学院 一种流动式起重机支撑装置
US11401687B2 (en) * 2018-02-13 2022-08-02 Volvo Construction Equipment Ab Surface support assembly for supporting a working machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711428A (en) * 1986-09-24 1987-12-08 Hydra-Level, Inc. Hydraulic leveling device
FR2644151A3 (fr) * 1989-03-10 1990-09-14 Nardi Daniele Verin de stabilisation et de soulevement
WO1999020505A1 (en) * 1997-10-17 1999-04-29 Hiab Ab Support leg assembly for vehicles
US20010002086A1 (en) * 1998-06-12 2001-05-31 Webb Sterling E. Dual mode stabilizer for backhoe loaders and backhoe attachments
EP1780166A2 (de) * 2005-10-26 2007-05-02 Vincenzo Zangari Unfallschutz für Baukräne

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711428A (en) * 1986-09-24 1987-12-08 Hydra-Level, Inc. Hydraulic leveling device
FR2644151A3 (fr) * 1989-03-10 1990-09-14 Nardi Daniele Verin de stabilisation et de soulevement
WO1999020505A1 (en) * 1997-10-17 1999-04-29 Hiab Ab Support leg assembly for vehicles
US20010002086A1 (en) * 1998-06-12 2001-05-31 Webb Sterling E. Dual mode stabilizer for backhoe loaders and backhoe attachments
EP1780166A2 (de) * 2005-10-26 2007-05-02 Vincenzo Zangari Unfallschutz für Baukräne

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012008864A1 (de) 2011-10-18 2013-04-18 Pacoma Gmbh Modulares Stützsystem
CN105692452A (zh) * 2016-04-08 2016-06-22 安庆市星博特电子科技有限公司 一种升降平台安装支腿辅助组件
US11401687B2 (en) * 2018-02-13 2022-08-02 Volvo Construction Equipment Ab Surface support assembly for supporting a working machine
CN112340622A (zh) * 2021-01-05 2021-02-09 河南工学院 一种流动式起重机支撑装置

Also Published As

Publication number Publication date
ITMO20080099A1 (it) 2009-10-05

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