EP3157856A1 - Support frame - Google Patents

Support frame

Info

Publication number
EP3157856A1
EP3157856A1 EP14758418.9A EP14758418A EP3157856A1 EP 3157856 A1 EP3157856 A1 EP 3157856A1 EP 14758418 A EP14758418 A EP 14758418A EP 3157856 A1 EP3157856 A1 EP 3157856A1
Authority
EP
European Patent Office
Prior art keywords
frame
outriggers
lateral surface
truck
jacket
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
EP14758418.9A
Other languages
German (de)
French (fr)
Other versions
EP3157856B1 (en
Inventor
Renato VALENTINI
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.)
Socage Srl
Original Assignee
Socage 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 Socage Srl filed Critical Socage Srl
Priority to PL14758418T priority Critical patent/PL3157856T3/en
Publication of EP3157856A1 publication Critical patent/EP3157856A1/en
Application granted granted Critical
Publication of EP3157856B1 publication Critical patent/EP3157856B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B66C23/62—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
    • 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
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations

Definitions

  • the present invention relates to a support frame for truck-mounted aerial platforms or other similar lifting apparatus.
  • truck-mounted aerial platforms equipped with a respective support frame mounted on a truck, behind the driver's cab.
  • the support frames comprise a slewing ring on which the boom supporting the basket of the platform is rotatably mounted.
  • the frames further comprise outriggers, for example of the telescopic type, hydraulically driven and designed to provide a base for the machine to rest on during the operating phases.
  • the outriggers are in a retracted configuration, in which they have the smallest lateral dimensions relative to the truck's direction of travel.
  • the outriggers are in an extended configuration, in which the beams of the outriggers are extracted from their jacket and firmly planted on the ground, to enable the platform to carry out its operations in complete safety.
  • One known type of frame comprises two main beams, which are arranged perpendicular to the axis of the truck, and bear respective telescopic outriggers on the far ends, for example of an inclined type, said beams being joined by two struts.
  • One of these beams is set immediately behind the cab, whilst the other beam is arranged behind the rear axle.
  • the aforesaid struts are placed under great strain and are thus suitably dimensioned; moreover, this type of frame often incorporates a counter-frame to lend it the strength required for the uses it is intended for.
  • the degree of stability of this type of machine depends on the support area defined by the points where the feet of the outriggers rest on the ground in the extended configuration.
  • the object of the present invention is thus to provide a support frame that overcomes the above-illustrated disadvantages of the prior art and satisfies the above-mentioned market need.
  • FIG. 1 is an axonometric view of a truck fitted with the frame of the invention constructed in accordance with a first embodiment
  • FIG. 2 is a view from above of the truck in figure 1 , wherein the frame is in a first configuration
  • figure 3 is the view of figure 2, in which the frame is in a different configuration
  • FIG. 4 is an axonometric view of the truck in the preceding figures, in which the frame of the invention is represented in exploded form;
  • - figure 5 is an axonometric view of a truck fitted with the frame of the invention constructed in accordance with a second embodiment
  • - figure 6 is a view from above of the truck in figure 5, in which the frame is in a first configuration
  • figure 7 is the view of figure 6, in which the frame is in a different configuration.
  • FIG. 8 is an axonometric view of the truck of the figures 5 - 7, in which the frame is represented in exploded form.
  • the proposed frame 1 , 10 is specially intended for use with a truck- mounted aerial platform or similar lifting apparatus.
  • the frame 1 , 10 of the invention has been conceived to be mounted on the chassis 20 of a truck 2, behind the driver's cab 21.
  • the frame 1 , 10 includes first of all a coupling assembly 11 , 12 suitable for rotatably supporting the aerial platform, after the reciprocal mechanical coupling thereof.
  • the platforms comprise a lifting arm like a crane boom that bears the basket.
  • the lower end of the boom is mounted on said coupling assembly 1 , 12 so that it can be rotated around a vertical rotation axis V.
  • the coupling assembly 11 , 12 comprises a base turret 11 , intended to be mounted integrally with the chassis 20, which supports a slewing ring 12 that enables the rotation of the aerial platform.
  • the turret 11 also acts as a passageway for electrical cables and hydraulic conduits.
  • the turret 11 preferably has a closed lateral periphery that extends longitudinally according to the aforesaid rotation axis V; even more preferably, said lateral periphery defines a cylindrical surface 13, coaxial with the slewing ring 12, whose surface 13 is arranged vertically during use.
  • the frame 1 , 10 moreover includes a plurality of outriggers 31 , 32, 33, 34, preferably four and preferably identical to one another, each capable of being extended and retracted along a respective axis of extension E.
  • the frame 1 , 10 comprises a travel configuration (shown in figures 2 and 6), in which all the outriggers are retracted and occupy minimal space, and an operative configuration (shown in figures 3 and 7), in which they are extended and firmly planted on the ground in order to provide the required stability for using the aerial platform.
  • outriggers 31 , 32, 33, 34 are preferably of a telescopic type and hydraulically driven, and capable of being extracted on command along a respective axis of extension E (see figures 2, 3, 6 and 7).
  • the telescopic outriggers 31 , 32, 33, 34 each comprise a rectilinear jacket
  • the outriggers 31 , 32, 33, 34 are preferably of a vertical type, that is to say, on one side, the direction of extension E of the beams 311 , 321 , 331 , 341 is horizontal and on the other side, at the distal end thereof, the beams 31 1 , 321 , 331 , 341 are fitted with a vertical rod 41 , 42, 43, 44, likewise slidable on command but in vertical direction.
  • Said vertical rods 41 , 42, 43, 44, are provided with feet at the lower free end thereof.
  • the turret 11 and slewing ring 12 are centrally located in the frame 1 , 10, whilst the outriggers 31 , 32, 33, 34 are arranged substantially tangential to the lateral surface 13 of the turret 11.
  • the outriggers 31 , 32, 33, 34 are arranged aside of a lateral surface 13 of the coupling assembly 1 1 , 12, with the aforesaid axes of extension not intersecting the lateral surface 13.
  • the frame 1 , 10 proposed does not require the struts, the beams and the counter-frame of the prior art, which renders the invention more lightweight, less costly and less cumbersome.
  • the frame 1 , 10 of the invention enables an extra stroke length in the extension of the outriggers 31 , 32, 33, 34, thus increasing the machine's stability during the operating phases.
  • the outriggers 31 , 32, 33, 34 are substantially coplanar, and preferably rest on a horizontal plane, transverse to the aforesaid rotation axis V.
  • the outriggers 31 , 32, 33, 34 are located contiguously, two by two in succession, around the coupling assembly 11 , 12, in which they are arranged in respective angular positions relative to the rotation axis V.
  • the outriggers 31 , 32, 33, 34 are angularly equidistant.
  • the proximal end of the jacket 310, 320, 330, 340 of each outrigger 31 , 32, 33, 34 is in contact with the lateral surface of the jacket 310, 320, 330, 340 of a different outrigger, thus preferably defining a sort of T.
  • each jacket 310, 320, 330, 340 is directly facing, though at a distance, the lateral surface of the jacket 310, 320, 330, 340 of a different outrigger 31 , 32, 33, 34.
  • the axes of extension of the outriggers 31 , 32, 33, 34 intersect and are preferably in mutually perpendicular pairs, so that the contiguous outriggers 31 , 32, 33, 34 are transverse thereto.
  • Said adjacent portion 300 is the portion that is directly aside of the coupling assembly 1 1 , 12, and in particular the turret 1 1 , for the entire diametrical extension thereof.
  • this internal space is closed at the sides.
  • the proposed frame 1 is mounted on the chassis 20 so as to be interposed between the cab 21 and the rear axle of the truck 2 (see for example figure 1 ).
  • Figure 4 shows also some optional components of the frame 1 , in particular a pair of plates 5 which sandwich the beams 31 1 , 321 , 331 , 341 of the outriggers 31 , 32, 33, 34.
  • the frame 1 can be mounted on the chassis 20 with an orientation such that the outriggers 31 , 32, 33, 34, and in particular the axes of extension E thereof, are arranged obliquely relative to the longitudinal axis A of the truck 2 (see figures 2 and 3).
  • the frame 1 comprises, relative to the direction of travel, a front outrigger indicated as 31 , a rear outrigger indicated as 33 and two lateral outriggers indicated as 32 and 34.
  • the distal ends of the outriggers 31 , 32, 33, 34 define, in a plan view (or from above), the vertices of a square with two sides parallel and two sides perpendicular to the longitudinal axis A of the truck 2.
  • the distal ends of the outriggers define, in a plan view (or from above), the vertices of a square with sides that are oblique relative to the longitudinal axis A.
  • the invention provides outriggers 31 , 32, 33, 34 which, the overall lateral dimensions in the travel configuration being equal, are equipped with a longer respective jacket 310, 320, 330, 340 than in the prior art and can thus accommodate a longer extractible beam 31 1 , 321 , 331 , 341.
  • the resting or stabilization area is larger and it is therefore possible to provide greater stability to the vehicle.
  • the frame 1 is both lighter and capable of providing greater stability, it can have particularly high aerial platforms mounted on it, even on trucks of reduced size, of the type that are presently not used in these types of application for safety reasons.
  • the invention also enables the performance features of the aerial platform to be improved in terms of "operating radius", that is, it enables the horizontal distance of the of the basket from the so-called “tip- over line” to be increased.
  • the frame 10 of this second embodiment has the same advantages as the one of the first embodiment, but enables a greater extra stroke length of the outriggers 31 , 32, 33, 34.
  • the outriggers 31 , 32, 33, 34 are arranged on at least two parallel planes which, during use, are preferably horizontal.
  • outriggers 31 , 32, 33, 34 they can be arranged on two planes at different heights, so that the outriggers 31 , 32, 33, 34 in the same plane are parallel and the outriggers 31 , 32, 33, 34 in different planes are perpendicular.
  • the upper outriggers 31 , 33 can be arranged directly in contact with the lower ones 32, 34.
  • the beams 311 , 321 , 331 , 341 of the outriggers together take on a configuration resembling a "hash mark".
  • the upper beams 31 , 33 intersect with the lower ones 32, 34 in such a way as to define an internal space similar to that of the first embodiment, laterally bounded by the adjacent portions 300, and which houses the aforesaid coupling assembly 11 , 12.
  • the internal space is closed off at the sides.
  • the spacing between the upper beams is preferably equal to that of the lower beams.
  • the proximal portion of the jacket 310, 320, 330, 340, beyond the adjacent portion 300, i.e. the section that is as long as the diameter of the turret 1 1 and placed directly aside of it, also includes a projecting portion 301 , which comprises the free end of the beam 311 , 321 , 331 , 341.
  • the jacket 310, 320, 330, 340 can be even longer, not only than in the prior art, but also than in the first embodiment.
  • each pair of parallel outriggers arranged on the same plane has beams that are extracted in opposite directions.
  • the movable ends of the beams 311 , 321 , 331 , 341 which, as explained above, bear a vertical arm endowed with a foot, are facing in opposite directions.
  • the vertical rods are located in opposite half-spaces defined by a vertical plane that is midway relative to the length of the jackets 310, 320, 330, 340.
  • the frame 10 of the second embodiment is mounted on the chassis 20 so as to be interposed between the cab 21 and the rear axis of the truck 2 (see for example figure 5), with an orientation such that the outriggers 31 , 32, 33, 34, and in particular their extraction axes thereof, are arranged obliquely relative to the longitudinal axis A of the truck 2 (see figures 6 and 7).
  • the frame 10 in accordance with the second embodiment can include the optional components of the frame 1 of the first embodiment, and in particular the pair of plates 5 sandwiching the beams 31 , 321 , 331 , 341 , shown only in figure 4.
  • the slewing ring 12 is arranged on a horizontal plane which defines a lower half-space comprising the outriggers 31 , 32, 33, 34 and an upper half-space including the platform.
  • the frame 1 , 10 can be offered on the market as a unit on its own, which not only simplifies shipping logistics, thus decreasing delivery times, but also enables the frame 1 , 10 to be mounted on and disassembled from the chassis 20 of a truck 2 very easily and quickly, for example by simple bolting.

Abstract

A support frame (1, 10) for a lifting apparatus, such as an aerial platform or the like, suitable for being mounted on a truck (2) or the like, comprising: a coupling assembly (11, 12) suitable for rotatably supporting the apparatus; a plurality of outriggers (31, 32, 33, 34), each capable of being extended and retracted along a respective axis of extension (E). The outriggers (31, 32, 33, 34) are arranged aside of a lateral surface (13) of said coupling assembly (11, 12), said axes of extension (E) not intersecting with said lateral surface (13).

Description

DESCRIPTION
SUPPORT FRAME
Technical field
The present invention relates to a support frame for truck-mounted aerial platforms or other similar lifting apparatus.
Background art
There are known truck-mounted aerial platforms equipped with a respective support frame mounted on a truck, behind the driver's cab. The support frames comprise a slewing ring on which the boom supporting the basket of the platform is rotatably mounted.
The frames further comprise outriggers, for example of the telescopic type, hydraulically driven and designed to provide a base for the machine to rest on during the operating phases.
In practice, during travel, the outriggers are in a retracted configuration, in which they have the smallest lateral dimensions relative to the truck's direction of travel.
During the platform operating phases, the outriggers are in an extended configuration, in which the beams of the outriggers are extracted from their jacket and firmly planted on the ground, to enable the platform to carry out its operations in complete safety.
One known type of frame comprises two main beams, which are arranged perpendicular to the axis of the truck, and bear respective telescopic outriggers on the far ends, for example of an inclined type, said beams being joined by two struts.
One of these beams is set immediately behind the cab, whilst the other beam is arranged behind the rear axle.
During the operating phases, the aforesaid struts are placed under great strain and are thus suitably dimensioned; moreover, this type of frame often incorporates a counter-frame to lend it the strength required for the uses it is intended for.
These aspects render the known frame very heavy and cumbersome, which, besides being a technological and economic disadvantage in itself, limits its use solely to trucks of a sufficient size.
Furthermore, the weight of the frame considerably impacts on the vehicle's consumption.
Moreover, as is well known, the degree of stability of this type of machine depends on the support area defined by the points where the feet of the outriggers rest on the ground in the extended configuration.
In practice, these resting points define the corners of a plane figure; the larger this figure is, the greater the vehicle's stability will be during the operating phases.
At present, in the market to which the invention relates, a need is felt for support frames which, without further increasing the weight, but decreasing it if possible, and taking into account the overall dimensional limits during the travel of the vehicle they are mounted on, make a larger support area available than the known frames.
Object of the invention
The object of the present invention is thus to provide a support frame that overcomes the above-illustrated disadvantages of the prior art and satisfies the above-mentioned market need.
This object is achieved by the support frame according to claim 1.
Brief description of the drawings
- Figure 1 is an axonometric view of a truck fitted with the frame of the invention constructed in accordance with a first embodiment;
- figure 2 is a view from above of the truck in figure 1 , wherein the frame is in a first configuration;
- figure 3 is the view of figure 2, in which the frame is in a different configuration;
- figure 4 is an axonometric view of the truck in the preceding figures, in which the frame of the invention is represented in exploded form;
- figure 5 is an axonometric view of a truck fitted with the frame of the invention constructed in accordance with a second embodiment; - figure 6 is a view from above of the truck in figure 5, in which the frame is in a first configuration;
- figure 7 is the view of figure 6, in which the frame is in a different configuration; and
- figure 8 is an axonometric view of the truck of the figures 5 - 7, in which the frame is represented in exploded form.
Detailed description of preferred embodiments of the invention
In the appended figures, two embodiments of the support frame according to the invention are indicated as 1 and 10.
The proposed frame 1 , 10 is specially intended for use with a truck- mounted aerial platform or similar lifting apparatus.
In practice, the frame 1 , 10 of the invention has been conceived to be mounted on the chassis 20 of a truck 2, behind the driver's cab 21.
The frame 1 , 10 includes first of all a coupling assembly 11 , 12 suitable for rotatably supporting the aerial platform, after the reciprocal mechanical coupling thereof.
In detail, it is known that the platforms comprise a lifting arm like a crane boom that bears the basket.
The lower end of the boom is mounted on said coupling assembly 1 , 12 so that it can be rotated around a vertical rotation axis V.
In the preferred embodiment of the invention, the coupling assembly 11 , 12 comprises a base turret 11 , intended to be mounted integrally with the chassis 20, which supports a slewing ring 12 that enables the rotation of the aerial platform.
In addition to this structural function, the turret 11 also acts as a passageway for electrical cables and hydraulic conduits.
The turret 11 preferably has a closed lateral periphery that extends longitudinally according to the aforesaid rotation axis V; even more preferably, said lateral periphery defines a cylindrical surface 13, coaxial with the slewing ring 12, whose surface 13 is arranged vertically during use. The frame 1 , 10 moreover includes a plurality of outriggers 31 , 32, 33, 34, preferably four and preferably identical to one another, each capable of being extended and retracted along a respective axis of extension E.
In detail, the frame 1 , 10 comprises a travel configuration (shown in figures 2 and 6), in which all the outriggers are retracted and occupy minimal space, and an operative configuration (shown in figures 3 and 7), in which they are extended and firmly planted on the ground in order to provide the required stability for using the aerial platform.
In particular, the outriggers 31 , 32, 33, 34 are preferably of a telescopic type and hydraulically driven, and capable of being extracted on command along a respective axis of extension E (see figures 2, 3, 6 and 7).
The telescopic outriggers 31 , 32, 33, 34 each comprise a rectilinear jacket
310, 320, 330, 340, solidly associated with the coupling assembly 1 1 , 12, in particular with said turret 11 , and a shaft defined by a rectilinear beam
311 , 321 , 331 , 341 , capable of being extracted from and inserted into the respective jacket 310, 320, 330, 340.
The outriggers 31 , 32, 33, 34 are preferably of a vertical type, that is to say, on one side, the direction of extension E of the beams 311 , 321 , 331 , 341 is horizontal and on the other side, at the distal end thereof, the beams 31 1 , 321 , 331 , 341 are fitted with a vertical rod 41 , 42, 43, 44, likewise slidable on command but in vertical direction.
Said vertical rods 41 , 42, 43, 44, are provided with feet at the lower free end thereof.
The vertical outriggers are in any case known in themselves, though not in combination with the other components of the invention, and they will thus not be further detailed hereunder.
According to an important aspect of the invention, the turret 11 and slewing ring 12 are centrally located in the frame 1 , 10, whilst the outriggers 31 , 32, 33, 34 are arranged substantially tangential to the lateral surface 13 of the turret 11.
In more general terms, the outriggers 31 , 32, 33, 34 are arranged aside of a lateral surface 13 of the coupling assembly 1 1 , 12, with the aforesaid axes of extension not intersecting the lateral surface 13.
Before proceeding with a detailed description of the structure of the frame 1 , 10, it is worth briefly explaining some of the advantages of the configuration outlined above.
First of all, the frame 1 , 10 proposed does not require the struts, the beams and the counter-frame of the prior art, which renders the invention more lightweight, less costly and less cumbersome.
Moreover, the frame 1 , 10 of the invention enables an extra stroke length in the extension of the outriggers 31 , 32, 33, 34, thus increasing the machine's stability during the operating phases.
In fact, as already explained, the larger the area of the plane figure defined in a plan view by the resting points of the outriggers 31 , 32, 33, 34 (practically speaking, the aforesaid feet), the greater the stability of the vehicle.
Therefore, if the outriggers 31 , 32, 33, 34 have a longer extraction stroke, the resting points will be at a greater distance and hence the area of the plane figure, quadrilateral in this specific case, will be greater.
The extra stroke length mentioned is made possible by the fact that the outriggers 31 , 32, 33, 34 are tangential or in any case aside of the turret
11.
This aspect will be further examined and clarified in the description that follows, in which the first embodiment shown in figures 1 - 4 and then the second embodiment are explained in detail.
In the first embodiment, the outriggers 31 , 32, 33, 34 are substantially coplanar, and preferably rest on a horizontal plane, transverse to the aforesaid rotation axis V.
In particular, the outriggers 31 , 32, 33, 34 are located contiguously, two by two in succession, around the coupling assembly 11 , 12, in which they are arranged in respective angular positions relative to the rotation axis V. Preferably, the outriggers 31 , 32, 33, 34 are angularly equidistant. In detail, the proximal end of the jacket 310, 320, 330, 340 of each outrigger 31 , 32, 33, 34 is in contact with the lateral surface of the jacket 310, 320, 330, 340 of a different outrigger, thus preferably defining a sort of T.
In an alternative embodiment, not represented, said proximal end of each jacket 310, 320, 330, 340 is directly facing, though at a distance, the lateral surface of the jacket 310, 320, 330, 340 of a different outrigger 31 , 32, 33, 34.
In both cases, the axes of extension of the outriggers 31 , 32, 33, 34 intersect and are preferably in mutually perpendicular pairs, so that the contiguous outriggers 31 , 32, 33, 34 are transverse thereto.
In practice, as shown in figures 2 and 3, in each outrigger 31 , 32, 33, 34, and in particular in each jacket 310, 320, 330, 340, there is defined an adjacent portion 300 between the aforesaid proximal end and the point in which the jacket is intersected by the axis of extension E of the contiguous outrigger.
Said adjacent portion 300 is the portion that is directly aside of the coupling assembly 1 1 , 12, and in particular the turret 1 1 , for the entire diametrical extension thereof.
The intersection between the outriggers 31 , 32, 33, 34, and in particular between their jackets 310, 320, 330, 340, which are solidly joined to one another, defines an internal space, laterally bounded by said adjacent portions 300, which houses the aforesaid coupling assembly 1 1 , 12.
In the preferred embodiment, this internal space is closed at the sides. According to an important, albeit not essential, aspect, the proposed frame 1 is mounted on the chassis 20 so as to be interposed between the cab 21 and the rear axle of the truck 2 (see for example figure 1 ).
This is made possible by the compact structure explained above in detail. Figure 4 shows also some optional components of the frame 1 , in particular a pair of plates 5 which sandwich the beams 31 1 , 321 , 331 , 341 of the outriggers 31 , 32, 33, 34. Furthermore, the frame 1 can be mounted on the chassis 20 with an orientation such that the outriggers 31 , 32, 33, 34, and in particular the axes of extension E thereof, are arranged obliquely relative to the longitudinal axis A of the truck 2 (see figures 2 and 3).
In detail, in the embodiment shown in the figures, the frame 1 comprises, relative to the direction of travel, a front outrigger indicated as 31 , a rear outrigger indicated as 33 and two lateral outriggers indicated as 32 and 34.
In the travel configuration of the frame 1 , shown in figure 2, the distal ends of the outriggers 31 , 32, 33, 34 define, in a plan view (or from above), the vertices of a square with two sides parallel and two sides perpendicular to the longitudinal axis A of the truck 2.
In this configuration, the overall lateral dimensions on the truck 2, relative to the direction of travel is within the limits envisaged for this type of application.
In the operative configuration of the frame 1 , shown in figure 3, the distal ends of the outriggers define, in a plan view (or from above), the vertices of a square with sides that are oblique relative to the longitudinal axis A. By virtue of the fact of having envisaged the configuration of the outriggers 31 , 32, 33, 34 in the frame 1 and the orientation of the frame 1 on the truck 2, the invention makes it possible to have a larger support or stabilization area as compared to the prior art, though complying with the dimensional limits during travel.
In other words, the invention provides outriggers 31 , 32, 33, 34 which, the overall lateral dimensions in the travel configuration being equal, are equipped with a longer respective jacket 310, 320, 330, 340 than in the prior art and can thus accommodate a longer extractible beam 31 1 , 321 , 331 , 341.
Given that the maximum travel of the beams 31 1 , 321 , 331 , 341 when extended from the respective jackets 310, 320, 330, 340 is greater than that offered by the prior art, the resting or stabilization area is larger and it is therefore possible to provide greater stability to the vehicle.
In detail, seeing that the frame 1 is both lighter and capable of providing greater stability, it can have particularly high aerial platforms mounted on it, even on trucks of reduced size, of the type that are presently not used in these types of application for safety reasons.
Moreover, the invention also enables the performance features of the aerial platform to be improved in terms of "operating radius", that is, it enables the horizontal distance of the of the basket from the so-called "tip- over line" to be increased.
This makes it possible, advantageously, to expand the potential market for this kind of product, with savings for the purchaser.
The second embodiment is described below with the aid of figures 5 - 8. For the sake of simplicity and illustrative clarity, the numerical references attributed to the components of the frame 10 are the same as those used in reference to the first embodiment and the features shared by the two embodiments as previously illustrated.
The frame 10 of this second embodiment has the same advantages as the one of the first embodiment, but enables a greater extra stroke length of the outriggers 31 , 32, 33, 34.
In fact, in this second embodiment, the outriggers 31 , 32, 33, 34 are arranged on at least two parallel planes which, during use, are preferably horizontal.
In the case of four outriggers 31 , 32, 33, 34, they can be arranged on two planes at different heights, so that the outriggers 31 , 32, 33, 34 in the same plane are parallel and the outriggers 31 , 32, 33, 34 in different planes are perpendicular.
The upper outriggers 31 , 33 can be arranged directly in contact with the lower ones 32, 34.
In the specific example represented, the beams 311 , 321 , 331 , 341 of the outriggers together take on a configuration resembling a "hash mark".
In practice, the upper beams 31 , 33 intersect with the lower ones 32, 34 in such a way as to define an internal space similar to that of the first embodiment, laterally bounded by the adjacent portions 300, and which houses the aforesaid coupling assembly 11 , 12.
In this case as well, the internal space is closed off at the sides.
The spacing between the upper beams is preferably equal to that of the lower beams.
In this embodiment, the proximal portion of the jacket 310, 320, 330, 340, beyond the adjacent portion 300, i.e. the section that is as long as the diameter of the turret 1 1 and placed directly aside of it, also includes a projecting portion 301 , which comprises the free end of the beam 311 , 321 , 331 , 341.
Thanks to this aspect, the jacket 310, 320, 330, 340 can be even longer, not only than in the prior art, but also than in the first embodiment.
This enables a further stroke length of the extractible beam 3 1 , 32 , 33 ,
341 and thus also a greater stabilization area for the frame 10.
It should be noted that in the preferred embodiment represented in the figures, each pair of parallel outriggers arranged on the same plane has beams that are extracted in opposite directions.
In practice, the movable ends of the beams 311 , 321 , 331 , 341 , which, as explained above, bear a vertical arm endowed with a foot, are facing in opposite directions.
In other words, the vertical rods are located in opposite half-spaces defined by a vertical plane that is midway relative to the length of the jackets 310, 320, 330, 340.
Similarly to the first embodiment, and with the same advantages, the frame 10 of the second embodiment is mounted on the chassis 20 so as to be interposed between the cab 21 and the rear axis of the truck 2 (see for example figure 5), with an orientation such that the outriggers 31 , 32, 33, 34, and in particular their extraction axes thereof, are arranged obliquely relative to the longitudinal axis A of the truck 2 (see figures 6 and 7).
This enables the results already explained in relation to the first embodiment in terms of limiting the overall dimensions in the travel configuration of the frame (see figure 6) and in terms of the support area in the operative configuration (see figure 7).
It should be noted that the frame 10 in accordance with the second embodiment can include the optional components of the frame 1 of the first embodiment, and in particular the pair of plates 5 sandwiching the beams 31 , 321 , 331 , 341 , shown only in figure 4.
In both embodiments, the slewing ring 12 is arranged on a horizontal plane which defines a lower half-space comprising the outriggers 31 , 32, 33, 34 and an upper half-space including the platform.
Further advantages of the invention, in addition to the ones explained above, are associated with the fact that the compact configuration and the light weight of the frame 1 , 10 of the invention allows shipping costs to be significantly reduced.
Moreover, the frame 1 , 10 can be offered on the market as a unit on its own, which not only simplifies shipping logistics, thus decreasing delivery times, but also enables the frame 1 , 10 to be mounted on and disassembled from the chassis 20 of a truck 2 very easily and quickly, for example by simple bolting.
This also serves to significantly reduce the costs for training the personnel who work for the purchasing firms.

Claims

1. A support frame (1 , 10) for a lifting apparatus, such as an aerial platform or the like, suitable for being mounted on a truck (2) or the like, comprising:
a coupling assembly (1 1 , 12) suitable for rotatably supporting said apparatus; and
a plurality of outriggers (31 , 32, 33, 34), each capable of being extended and retracted along a respective axis of extension (E); the frame (1 , 10) being characterized in that said outriggers (31 , 32, 33, 34) are arranged aside of a lateral surface (13) of said coupling assembly (1 , 12), said axes of extension (E) not intersecting with said lateral surface (13).
2. The frame (1 , 10) according to the preceding claim, wherein said outriggers (31 , 32, 33, 34) are arranged substantially tangential to said lateral surface (13) of the coupling assembly (1 , 12).
3. The frame (1 ) according to at least one of the preceding claims, wherein said outriggers (31 , 32, 33, 34) are substantially coplanar.
4. The frame (10) according to claim 1 or claim 2, wherein said outriggers (31 , 32, 33, 34) are arranged on a plurality of parallel planes.
5. The frame (1 , 0) according to at least one of the preceding claims, wherein each outrigger (31 , 32, 33, 34) comprises a jacket (310, 320, 330, 340) in which a beam (311 , 321 , 331 , 341 ) is slidably inserted, said jacket (310, 320, 330, 340) having a lateral surface directly facing or in contact with said lateral surface of the coupling assembly (11 , 12).
6. The frame (1 ) according to the preceding claim, wherein one end of the jacket (310, 320, 330, 340) of each outrigger (31 , 32, 33, 34) is directly facing or in contact with a lateral surface of the jacket (310, 320, 330, 340) of a different outrigger (31 , 32, 33, 34).
7. The frame (1 , 10) according to claim 5, wherein the lateral surface of the jacket (310, 320, 330, 340) of each outrigger (31 , 32, 33, 34) is directly facing or in contact with the lateral surface of the jacket (310, 320, 330, 340) of a different outrigger (31 , 32, 33, 34).
8. The frame (1 , 10) according to at least one of the preceding claims, comprising four outriggers (31 , 32, 33, 34) in parallel two by two.
9. The frame (1 , 0) according to at least one of the preceding claims, wherein said coupling assembly ( , 12) comprises a base turret (11 ) supporting a slewing ring (12) which enables the rotation of said apparatus relative to a rotation axis (V), said lateral surface (13) of the assembly being defined by the lateral periphery of the turret (1 1 ).
10. The frame (1 , 10) according to the preceding claim, wherein said axes of extension (E) are arranged on at least one plane perpendicular to said rotation axis (V).
11. A vehicle (2, 1 , 10) for transporting a lifting apparatus, such as an aerial platform or the like, comprising:
a truck (2) provided with a cab (21 ) and a chassis (20); and a frame (1 , 10) according to at least one of the preceding claims, mounted on the chassis (20) behind the cab (21 ).
12. The vehicle (2, 1 , 10) according to the preceding claim, wherein the extraction axes of the outriggers (31 , 32, 33, 34) are arranged obliquely relative to the longitudinal axis (A) of the truck (2).
3. The vehicle (2, 1 , 10) according to claim 11 or claim 12, wherein the frame (1 , 10) is arranged between the cab (21 ) and the rear axle of the truck (2).
14. The vehicle (2, 1 , 10) according to at least one of claims - 13, wherein the frame (1 , 10) has a first configuration in which the distal ends of the outriggers (31 , 32, 33, 34) define the vertices of a square with two sides parallel and two sides perpendicular to the longitudinal axis (A) of the truck (2) and a second configuration in which the distal ends of the outriggers (31 , 32, 33, 34) define the vertices of a square with sides that are oblique relative to said longitudinal axis (A).
EP14758418.9A 2014-06-23 2014-06-23 Support frame Not-in-force EP3157856B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14758418T PL3157856T3 (en) 2014-06-23 2014-06-23 Support frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2014/062526 WO2015198089A1 (en) 2014-06-23 2014-06-23 Support frame

Publications (2)

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EP3157856A1 true EP3157856A1 (en) 2017-04-26
EP3157856B1 EP3157856B1 (en) 2019-05-22

Family

ID=51454728

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14758418.9A Not-in-force EP3157856B1 (en) 2014-06-23 2014-06-23 Support frame

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EP (1) EP3157856B1 (en)
ES (1) ES2736286T3 (en)
PL (1) PL3157856T3 (en)
WO (1) WO2015198089A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3369876A1 (en) * 2017-03-02 2018-09-05 Putzmeister Engineering GmbH Support structure with integrated boiler for a mobile concrete pump and mobile concrete pump
IT201800001069A1 (en) * 2018-01-16 2019-07-16 Cifa Spa MOBILE OPERATING MACHINE
CN112062004A (en) * 2020-09-22 2020-12-11 河南远东重工机械制造有限公司 Crane frame with supporting function

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407419A (en) * 1981-12-30 1983-10-04 Clements Shannon K Portable boom support for vehicles
US5121816A (en) * 1990-09-28 1992-06-16 Genie Industries, Inc. Lift safety system
US5706960A (en) * 1995-02-14 1998-01-13 Pioneer Engineering Extended perimeter x-shaped outrigger assembly for cranes
CN100528647C (en) * 2007-09-21 2009-08-19 三一重工股份有限公司 Walking type mechanical supporting device and concrete pump vehicle with the same
RU2476372C1 (en) * 2011-09-02 2013-02-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный технический университет" (ВолгГТУ) Wrecking machine
CN103158682A (en) * 2011-12-14 2013-06-19 徐工集团工程机械股份有限公司 Chassis structure of concrete pump truck with X-shaped supporting legs and concrete pump truck

Also Published As

Publication number Publication date
WO2015198089A1 (en) 2015-12-30
EP3157856B1 (en) 2019-05-22
PL3157856T3 (en) 2019-11-29
ES2736286T3 (en) 2019-12-27

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