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EP3031769A1 - Véhicule comportant des stabilisateurs en forme de ciseaux - Google Patents

Véhicule comportant des stabilisateurs en forme de ciseaux Download PDF

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Publication number
EP3031769A1
EP3031769A1 EP15186638.1A EP15186638A EP3031769A1 EP 3031769 A1 EP3031769 A1 EP 3031769A1 EP 15186638 A EP15186638 A EP 15186638A EP 3031769 A1 EP3031769 A1 EP 3031769A1
Authority
EP
European Patent Office
Prior art keywords
vehicle
ground
configuration
stabilizers
segment
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
EP15186638.1A
Other languages
German (de)
English (en)
Other versions
EP3031769B1 (fr
Inventor
Marco IOTTI
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.)
Manitou Italia SRL
Original Assignee
Manitou Italia SRL
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 Manitou Italia SRL filed Critical Manitou Italia SRL
Publication of EP3031769A1 publication Critical patent/EP3031769A1/fr
Application granted granted Critical
Publication of EP3031769B1 publication Critical patent/EP3031769B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07559—Stabilizing means
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/085—Ground-engaging fitting for supporting the machines while working, e.g. outriggers, legs

Definitions

  • the invention relates to stabilizers for lifts or handlers or air platforms of the telescopic type and, particularly, of the rotary type.
  • Telescopic lifts consist of a vehicle provided with a frame which is movable on tracks or wheels, comprising a frame-mounted platform, whereon the driver's cab is in turn mounted together with a telescopically extendable maneuvering arm.
  • an equipment or "accessory” for lifting or moving loads, such as for example a fork, a basket, a bucket, a side-shifter, a winch, and the like.
  • the apparatus at issue shall be generically referred to as "the vehicle", regardless of the type of equipment installed thereon.
  • the lift In order for the loads to be lifted and moved at great heights and with a significant "working radius”, the lift need to be stabilized.
  • Stabilizers may pass from an extended working configuration, wherein the they support the whole vehicle while lifting it from the ground, to a retracted rest configuration, wherein they exhibit an overall width which is in compliance with the rules governing road travel.
  • stabilizers stand on the ground by means of so-called "supporting feet", thereby defining a supporting quadrangle.
  • the scissor stabilizers 10 of the known type are formed by two stabilization assemblies provided on the front and on the rear of the vehicle and mounted on the frame thereof, in proximity of the wheels 2.
  • Each stabilization assembly comprises a pair of telescopically extensible arms 30, 301, usually with a single extension, which arms exhibit corresponding distal ends intended to be resting on the ground via aforementioned "supporting feet" 40, 41, as well as proximal ends which are hinged to a support frame 50.
  • the support frame 50 is the component of the stabilization assembly that is fixed directly to the vehicle 10.
  • the two arms 30, 31 of each assembly are arranged side by side, opposite one another, and are further individually solidly constrained to the corresponding support frame by means of hydraulic cylinders 60, which are in turn hinged to said frame 50.
  • the arms 30, 301, as well as the supporting feet 40, 401, must not exceed the overall width of the vehicle 10 allowed by the rules of road travel.
  • the arms 30, 301 of the stabilizers in the retracted configuration, shall leave an adequate ground clearance.
  • the pairs of arms 30, 301, as well as the supporting feet 40, 401, must be located at a height from the ground allowing the types of use as specified in the preceding paragraph.
  • the ground clearance determines what in jargon is called “angle of attack" of the vehicle 10.
  • the angle of attack is substantially the angle that the vehicle 10 may assume on uphill or downhill slope without any part thereof, nor even the stabilizers, impacting the ground.
  • the arms 30, 301 are extended and resting on the ground through the supporting feet 40, 41.
  • the arms 30, 301 are oblique relative to the ground and spread apart like scissors.
  • the maximum length of the arms 30, 301 and the distance between the centers of rotation C1, C2 of the arms relative to the support frame 50, are among the factors of outmost importance in determining performance of the stabilizers.
  • the length of the arms 30, 301 is limited by the maximum transversal dimension exhibited by the vehicle 10 in the retracted configuration thereof.
  • the distance I between the centers of rotation C1, C2 influences the horizontality of the vehicle 10 during the stabilization step.
  • the value of the length of the arms 30, 301 and the distance between the centers of rotation C1, C2 of current stabilizers is determined in such a manner as to confer the best performance to the vehicle 10 according to the conditions established.
  • the technical task at the base of the present invention is to provide a vehicle comprising scissor stabilizers, which is able to meet the above need.
  • the vehicle comprising scissor stabilizers, realized according to the invention.
  • the vehicle 1 herein described may be a lift or telescopic handler, particularly rotatable, or a forklift truck or an aerial platform of the telescopic type or similar machines intended for the lifting of loads.
  • the scissor stabilizers of the invention comprise at least one stabilization assembly 11, provided with relative support frame 5, whereon at least a pair of telescopically extensible arms 3, 31 is assembled.
  • the stabilizers preferably provide two stabilization assemblies 11 which are arranged on the front and on the rear of the vehicle 1 and mounted on the frame thereof.
  • each telescopic arm 3, 31 is provided with a first segment 32, 33 hinged to the corresponding support frame 5 and with a second extractable segment 34,35.
  • Supporting feet 4, 41 in jargon termed “stabilizing feet", are provided relative to the distal ends of the arms 3, 31, i.e. to the second segments 34,35.
  • the two arms 3, 31 of the stabilization assembly 11 are mounted opposite one another.
  • Each stabilization assembly 11 is suitable to pass from an extended working configuration (see Figures 2 , 5 and 6 ), wherein the vehicle 1 is stabilized, to a retracted rest configuration (see figure 3 ), in the which the vehicle 1 exhibits the minimal transversal dimension T and in which the stabilization assembly 11 reaches the maximum height from the ground, thereby defining a clearance between the vehicle 1 and the ground, or "ground clearance" L.
  • the stabilization assembly 11 may of course pass alternately from one configuration to another.
  • transversal dimension T it is to be meant the size of the width of the vehicle 1, being defined by the development of the stabilization assemblies 11 between the sides of the vehicle 1 itself.
  • the transversal dimension T is defined by the distance between the supporting feet 4, 41.
  • the ground clearance L is defined between the bottom of the stabilization assembly 11, in its retracted configuration, and the ground, and is comprised between the wheels 2, or tracks or the like.
  • the transversal dimension T extends horizontally and the ground clearance L vertically.
  • the ground clearance L defines the attack angle of the vehicle 1, thus influencing performance level thereof.
  • each support frame 5 comprises first of all a main element 51, which is stationary relative to the rest of the vehicle 1.
  • the main element 51 is mounted on the vehicle 1 at a suitable height from the ground, i.e. at a given distance from the point where the tires touch the ground.
  • the height at which the support frame 5 is mounted with respect to the vehicle 1, determines the height at which the latter is being brought as soon as the stabilizers are in the extended working configuration thereof. Indeed, the lower is the support frame 5, the greater will be the height K2 reached by the wheels 2 with respect to the ground, and the lower is the ground clearance L.
  • the support frame 5 may include a movable connecting element 7 for each arm 3, 31, being hinged to both the main element 51 and to the first segment 32, 33, thus allowing movement of the arm 3, 31 during the transition between the retracted configuration and the extended configuration.
  • the main element 51 is formed by a plurality of plates opposite one another and connected between cross members.
  • the arms 3, 31 are further individually solidly constrained to the main element 51 by means of hydraulic cylinders 60, or other actuators, in turn hinged to the main element 51 of the frame 5.
  • hydraulic cylinders 60 are arranged for moving the stabilizers from the retracted configuration to the extended configuration and vice versa.
  • the arms 3, 31 when in the retracted configuration, are arranged diagonally one to another, and the clearance L between the vehicle 1 and the ground is defined by the proximal ends 36, 37 of the first segments 32, 33.
  • this arrangement allows to obtain a lower hinge point P1, P2 of the first segment 32, 33 of the arms 3, 31 than the prior art, see Figure 4 .
  • the lowering of the hinge point P1, P2 allows to significantly increase the height K2 at which the wheels 2 are brought, i.e. the distance of the tires to the ground (see figure 4 ).
  • such increased height K2 at which the vehicle of the present invention is brought is defined based on the height at which the support frame 5, 50 is mounted on the corresponding vehicle 1, 10.
  • the proposed vehicle 1 is able to be better stabilized on uneven grounds, since a greater lifting height allows greater efficiency in terms of horizontal arrangement of the frame of the vehicle 1.
  • both the stabilizers of the invention and those of the prior art exhibit the same incidence angle A between the arms and the ground.
  • the distal ends of the second segments are provided with supporting feet 4, 41, exhibiting a corresponding supporting surface 42, 43, which is destined to be in contact with the ground.
  • the supporting feet 4, 41 preferably comprise substantially triangular bodies, which are freely pivoted in the corresponding second segment 34, 35, wherein the supporting surface 42, 43 is defined by the base of the "triangle".
  • the supporting surfaces 42, 43 of the supporting feet 4, 41 lie in corresponding substantially vertical planes.
  • each supporting foot 40, 41 may include two lateral ends, defined by the angles formed at the base of the triangle, one of which lateral end 44, 45 is heavier than the rest of the supporting feet 40, 41.
  • the first and second segments of an arm are perfectly parallel one to another and located at a greater height than the ideal plane, whereon the lower ends of the supporting feet or, more precisely the sharp ends thereof, are placed.
  • the invention allows to better use the spaces obtained, and preferably, aforesaid proximal ends 36, 37 of the first segments, or rather the lower sharp ends thereof, are placed in the same ideal plane of the lower ends 44, 45 of the supporting feet 4, 401, said plane P being practically the minimum lower projection plane (see figure 3 ).
  • the support frame 5 comprises a pair of connecting elements 7 for each arm 3, 31, which connecting elements 7 are parallel one to another.
  • each connecting element 7 preferably comprises a plate defined by a first part 71 exhibiting a substantially trapezoidal shape, and a second part 72 with a substantially triangular shape, said parts 71, 72 being joined one to another at one common side, or base 70.
  • the "triangular" and “trapezoidal" shape of the plate 7 have rounded angles defining corresponding lobes thereon.
  • the height H1 of the second part 72 is greater than the height H2 of the first part 71.
  • the plate of the connecting element 7 comprises a first hole 73 passing through the connection with the first segment 32, 33 of an arm 3, 31, thus defining above mentioned hinge point P1, P2, which is located in the first part 71 of the plate 7 itself.
  • the plate includes a second through-hole 74 passing through the connection with the main element 51 of the support frame 5, thereby defining the mentioned center of rotation C1, C2, which is placed near the vertex of the first part 72 of the plate.
  • each plate comprises four main lobes, one of which is an upper lobe which ends with the rounded vertex of the "triangle" 72 and is placed at a distance from the first hole 73 greater than that of the other lobes, said second hole 74 being formed at said upper lobe.
  • the stabilizers of the present invention offer better performance, while maintaining constant and extremely reduced the transversal dimension T and the ground clearance L.
  • the lowering of the hinge points P1, P2 may serve for compensating the greater distance at which the frame 5, or rather its main element 51, is located relative to the ground.
  • the vehicle 1 can be brought to same height of the prior art, however when the stabilizers are in the retracted configuration, the angle of attack is instead increased with respect to the known vehicle 10.
  • the vehicle 1 of the present invention is able to overcome bumps or ramps with stronger inclination.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Vehicle Body Suspensions (AREA)
EP15186638.1A 2014-12-09 2015-09-24 Véhicule comportant des stabilisateurs en forme de ciseaux Active EP3031769B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMO20140356 2014-12-09

Publications (2)

Publication Number Publication Date
EP3031769A1 true EP3031769A1 (fr) 2016-06-15
EP3031769B1 EP3031769B1 (fr) 2017-08-23

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ID=52444489

Family Applications (1)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700076727A1 (it) * 2017-07-07 2019-01-07 Manitou Italia Srl Sistema per stabilizzare macchine operatrici semoventi.
US20190064819A1 (en) * 2017-08-24 2019-02-28 Linde Material Handling Gmbh Autonomous Industrial Truck
IT201900012297A1 (it) * 2019-07-18 2021-01-18 Manitou Italia Srl Telehandler con stabilizzatori perfezionati.
US11401687B2 (en) * 2018-02-13 2022-08-02 Volvo Construction Equipment Ab Surface support assembly for supporting a working machine
RU2815179C2 (ru) * 2019-07-18 2024-03-12 МАНИТОУ ИТАЛИА С.р.л. Телескопический погрузчик с усовершенствованными стабилизаторами
EP4620891A1 (fr) * 2024-03-19 2025-09-24 Manitou Italia S.r.l. Système de stabilisation pour machines d'exploitation automotrices
EP4620892A1 (fr) * 2024-03-19 2025-09-24 Manitou Italia S.r.l. Système de stabilisation de machines d'exploitation automotrices

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019913A (en) * 1960-08-15 1962-02-06 Thew Shovel Co Outriggers for power shovels, cranes or the like
US3279622A (en) * 1964-10-27 1966-10-18 Edgar L Person Vehicle stabilizing means
FR1465606A (fr) * 1965-11-26 1967-01-13 Richier Sa Jambe stabilisatrice destinée aux engins mobiles de levage ou de terrassement
US3958813A (en) * 1975-03-17 1976-05-25 Harnischfeger Corporation Positive safety locking system for powered outrigger beams
US4124226A (en) * 1977-10-06 1978-11-07 Harnischfeger Corporation Electrohydraulic outrigger control system
CA1242993A (fr) * 1986-06-26 1988-10-11 Charles A. Annand Systeme de grue
JPH01195162A (ja) * 1988-09-08 1989-08-07 Kato Seisakusho:Kk トラッククレーンにおけるアウトリガ
US20050236824A1 (en) * 2004-04-21 2005-10-27 Wissler Reid L Vehicle leveling system and method using a combination outrigger and jack mount
EP1632132A2 (fr) * 2004-09-06 2006-03-08 Turner Development Limited Hachoir à bois sur chenille
WO2010028649A1 (fr) * 2008-09-12 2010-03-18 Lmb Andkær Smedie (Lynge Maskinbyg) V/ Hans Otto L Pedersen Machine
WO2011101720A1 (fr) * 2010-02-18 2011-08-25 C.M.C. S.R.L. - Società Unipersonale Dispositif de stabilisation pour une machine de travail
WO2014162191A1 (fr) * 2013-04-05 2014-10-09 C.M.C. S.R.L. - Societa Unipersonale Chariot élévateur équipé de moyens de stabilisation

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019913A (en) * 1960-08-15 1962-02-06 Thew Shovel Co Outriggers for power shovels, cranes or the like
US3279622A (en) * 1964-10-27 1966-10-18 Edgar L Person Vehicle stabilizing means
FR1465606A (fr) * 1965-11-26 1967-01-13 Richier Sa Jambe stabilisatrice destinée aux engins mobiles de levage ou de terrassement
US3958813A (en) * 1975-03-17 1976-05-25 Harnischfeger Corporation Positive safety locking system for powered outrigger beams
US4124226A (en) * 1977-10-06 1978-11-07 Harnischfeger Corporation Electrohydraulic outrigger control system
CA1242993A (fr) * 1986-06-26 1988-10-11 Charles A. Annand Systeme de grue
JPH01195162A (ja) * 1988-09-08 1989-08-07 Kato Seisakusho:Kk トラッククレーンにおけるアウトリガ
US20050236824A1 (en) * 2004-04-21 2005-10-27 Wissler Reid L Vehicle leveling system and method using a combination outrigger and jack mount
EP1632132A2 (fr) * 2004-09-06 2006-03-08 Turner Development Limited Hachoir à bois sur chenille
WO2010028649A1 (fr) * 2008-09-12 2010-03-18 Lmb Andkær Smedie (Lynge Maskinbyg) V/ Hans Otto L Pedersen Machine
WO2011101720A1 (fr) * 2010-02-18 2011-08-25 C.M.C. S.R.L. - Società Unipersonale Dispositif de stabilisation pour une machine de travail
WO2014162191A1 (fr) * 2013-04-05 2014-10-09 C.M.C. S.R.L. - Societa Unipersonale Chariot élévateur équipé de moyens de stabilisation

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700076727A1 (it) * 2017-07-07 2019-01-07 Manitou Italia Srl Sistema per stabilizzare macchine operatrici semoventi.
EP3424869A1 (fr) * 2017-07-07 2019-01-09 Manitou Italia S.r.l. Système de stabilisation de machines d'exploitation automotrices
US10752479B2 (en) 2017-07-07 2020-08-25 Manitou Italia S.R.L. System for stabilizing self-propelled operating machines
AU2018204919B2 (en) * 2017-07-07 2024-05-02 Manitou Italia S.R.L. System for stabilizing self-propelled operating machines
US20190064819A1 (en) * 2017-08-24 2019-02-28 Linde Material Handling Gmbh Autonomous Industrial Truck
US10941026B2 (en) * 2017-08-24 2021-03-09 Linde Material Handling Gmbh Autonomous industrial truck
US11401687B2 (en) * 2018-02-13 2022-08-02 Volvo Construction Equipment Ab Surface support assembly for supporting a working machine
IT201900012297A1 (it) * 2019-07-18 2021-01-18 Manitou Italia Srl Telehandler con stabilizzatori perfezionati.
EP3766825A3 (fr) * 2019-07-18 2021-04-21 Manitou Italia S.r.l. Manipulateur télescopique à stabilisateurs
RU2815179C2 (ru) * 2019-07-18 2024-03-12 МАНИТОУ ИТАЛИА С.р.л. Телескопический погрузчик с усовершенствованными стабилизаторами
EP4620891A1 (fr) * 2024-03-19 2025-09-24 Manitou Italia S.r.l. Système de stabilisation pour machines d'exploitation automotrices
EP4620892A1 (fr) * 2024-03-19 2025-09-24 Manitou Italia S.r.l. Système de stabilisation de machines d'exploitation automotrices

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