EP2789572B1 - Plateforme aérienne - Google Patents

Plateforme aérienne Download PDF

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Publication number
EP2789572B1
EP2789572B1 EP14163599.5A EP14163599A EP2789572B1 EP 2789572 B1 EP2789572 B1 EP 2789572B1 EP 14163599 A EP14163599 A EP 14163599A EP 2789572 B1 EP2789572 B1 EP 2789572B1
Authority
EP
European Patent Office
Prior art keywords
rockers
pair
aerial platform
configuration
linkage
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.)
Not-in-force
Application number
EP14163599.5A
Other languages
German (de)
English (en)
Other versions
EP2789572A1 (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.)
Palfinger Platforms Italy SRL
Original Assignee
Palfinger Platforms Italy 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 Palfinger Platforms Italy SRL filed Critical Palfinger Platforms Italy SRL
Publication of EP2789572A1 publication Critical patent/EP2789572A1/fr
Application granted granted Critical
Publication of EP2789572B1 publication Critical patent/EP2789572B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B66F11/044—Working platforms suspended from booms
    • B66F11/046—Working platforms suspended from booms of the telescoping type

Definitions

  • the present invention relates to an aerial platform with reduced space occupation.
  • aerial platforms that are provided with an articulated arm comprising a plurality of lever mechanisms which can move between an extended working configuration, so as to make it possible to reach the desired height, and a compact transport configuration, which enables the reduction of encumbrance of the platform on a means of transport, such as for example a truck, in order to facilitate its transport by road.
  • Such articulated arms are normally made up of an installation base that is associated rotatably with the loading deck of the means of transport; an end arm that is provided with a free end associated with a work station, normally known as a basket; a first and a second articulated quadrilateral, each of which is provided with a pair of rockers that are pivoted respectively to the installation base and to the end arm; and a connection linkage that is interposed between the two quadrilaterals and is pivoted to the second ends of the first and of the second pair of rockers.
  • the aerial platform comprises actuation means, which can be controlled both from the ground and from the work station, and which enable the transition between the two configurations mentioned above.
  • actuation means which can be controlled both from the ground and from the work station, and which enable the transition between the two configurations mentioned above.
  • the two pairs of rockers are arranged horizontal and mutually parallel, while the end arm is arranged transverse to the rockers with its free end directed toward the rear of the means of transport and arranged in a downward region.
  • Such conventional aerial platforms are not devoid of drawbacks, including the fact that they do not extend far enough to reach elevated working heights and also offer compact dimensions for transporting the platform by road.
  • the dimensions of the individual rockers are limited to the maximum longitudinal space occupation that can be transported by a normal means of transport by road, and such limitation affects the maximum height that can be reached by the work station, since a larger size of the rockers would make it possible to reach higher working elevations, but would also require the use of special means of transport, consequently increasing the cost of intervention at the site.
  • DE20202256U1 discloses an aerial platform according to the preamble of claim 1.
  • the aim of the present invention is to provide an aerial platform with reduced space occupation which eliminates the drawbacks and overcomes the limitations of the known art, by making it possible to reach elevated working heights and by the possibility of installation on a normal means of transport, without the necessity of using special means for its transport by road.
  • an object of the present invention is to provide a platform that can be fully used even for low working heights, without necessarily being completely extended.
  • Another object of the invention consists in providing a platform that can also be used in enclosed environments with low ceilings, without requiring the use of different types of platforms.
  • Another object of the invention consists in providing a platform that is capable of offering the widest guarantees of reliability and safety of use.
  • Another object of the invention consists in providing a platform that is easy to implement and economically competitive with the known art.
  • an aerial platform with reduced space occupation that can be associated with a means of transport and is provided with an articulated arm that comprises an installation base which can be associated with a loading deck of said means of transport, an end arm provided with a free end with which a work station is associated, a first articulated quadrilateral provided with a first pair of rockers which are mutually parallel, with respective first ends that are pivoted to said installation base, a second articulated quadrilateral provided with a second pair of rockers which are mutually parallel, with respective first ends that are pivoted to said end arm, a connection linkage to which respective second ends of said first and second pairs of rockers and actuation means are pivoted for the transition of said aerial platform between an extended working configuration and a compact transport configuration, in said extended working configuration said free end being spaced further from said installation base than in said compact transport configuration, characterized in that in said compact transport configuration said first pair of rockers and said second pair of rockers are arranged transversely to
  • said end arm is of the telescopic type and; in said compact transport configuration the longitudinal axis of said end arm is arranged substantially in parallel to said first pair of rockers and said second pair of rockers is arranged substantially horizontally; and in said compact transport configuration the end of said end arm which is pivoted to said second quadrilateral can be arranged above the driver's cab of said means of transport.
  • the platform with reduced space occupation which is generally designated by the reference numeral 1, comprises an articulated arm that is provided with an installation base 2 that is associated with a loading deck 101 of a means of transport 100.
  • This articulated arm comprises an end arm 3 provided with a free end 4 associated with a work station 5, a first quadrilateral 6 and a second quadrilateral 8, which are respectively associated with the installation base 2 and with the end arm 3 and which are mutually connected by way of a connection linkage 10.
  • the first quadrilateral 6 comprises a first pair of rockers 7, which are mutually parallel, the opposite ends of which are pivoted to the installation base 2 and to the linkage 10, while the second articulated quadrilateral 8 is provided with a second pair of rockers 9, which are mutually parallel, with the respective opposite ends pivoted to the end arm 3 and to the linkage 10.
  • the aerial platform 1 furthermore comprises actuation means 11 for its transition between an extended working configuration and a compact transport configuration. In particular, in the extended configuration the free end 4 is spaced further from the installation base 2 than in the compact configuration in order to allow the operator, in the work station 5, to reach the desired height.
  • the first pair of rockers 7 and the second pair of rockers 9 of the aerial platform 1 are arranged transversely to each other and so as to diverge at the linkage 10.
  • the longitudinal axis 10a of the linkage 10 which extends substantially along a respective longitudinal axis 10a, is in a substantially vertical position in the inactive configuration.
  • the longitudinal axis 3a of the end arm 3 is arranged substantially in parallel to the first pair of rockers 7, while the second pair of rockers 9 is arranged substantially horizontally.
  • the inclination of the longitudinal axis 3 a of the end arm 3 and of the first pair of rockers 7 with respect to a horizontal plane is substantially comprised between 20° and 30° and is preferably 25°.
  • the free end 4 of the end arm 3 is directed toward the rear of the means of transport 100 at a lower height than the installation base 2, and also below the loading deck 101, while the end pivoted to the second quadrilateral 8, opposite to the free end 4, is arranged above the driver's cab 102 of the means of transport 100. Furthermore, the installation base 2 is associated with the loading deck 101 and is able to rotate about a vertical rotation axis 12.
  • Such rotation axis 12 is spaced from the passenger compartment by a distance D that is larger than the radial space occupation R that is defined between the rotation axis and the linkage 10 in the compact transport configuration, so as to allow a rotation 12 of the aerial platform 1 in the compact configuration about the rotation axis without colliding with the driver's cab 102.
  • the installation base 2 is associated with the loading deck 101 by interposition of a shank 17 that is coaxial with the rotation axis 12 and can move by rotation about the latter thanks to a movement means of the conventional type.
  • the body of the installation base 2 is an elongated body that is contoured so as not to collide with the driver's cab 102 during its rotation about the rotation axis 12 and is provided with two opposite ends a first of which is associated with the shank 17 and a second of which is directed toward the driver's cab 102 in the compact configuration.
  • Pivoted to the second end are the ends of the first pair of rockers 7 which, in the compact configuration, are inclined by approximately 25° with respect to a horizontal plane and are directed downward, and toward the rear of the means of transport 100, while the other ends are pivoted to the linkage 10.
  • the linkage 10 is arranged vertically with its longitudinal axis 10a allowing a horizontal arrangement with respect to the second pair of rockers 9 which, with the respective ends opposite to the ends that are pivoted to the linkage, are arranged above the driver's cab 102.
  • the installation base 2, the linkage 10 and the two pairs of rockers 7 and 9 can move along a single vertical plane.
  • the end arm 3 is associated with the end of the second pair of rockers 9, which are arranged above the driver's cab 102 in the compact configuration.
  • the end arm 3 is arranged beside the first pair of rockers 7, directing its free end 4 downward and toward the rear of the means of transport 100, as shown in Figures 1 and 2 . Furthermore, the end arm 3 is of the telescopic type so as to enable its elongation during the steps of working, as shown in Figure 3 .
  • actuation means 11 which comprise at least two actuators 15 and 16, which are defined for example by hydraulic telescopic cylinders, which are provided with opposite ends that can be actuated to move toward and away from each other.
  • a first actuator 15 is associated, with the respective opposite ends, with the installation base 2 and with the first quadrilateral 6, and the second actuator 16 is associated, with the respective opposite ends, with the end arm 3 and with the second quadrilateral 8.
  • the actuation means 11 comprise a connecting rod 14 that is accommodated within the linkage 10 that is associated, by way of the respective opposite ends, with a first rocker 7a of the first pair of rockers 7 and with a first rocker 9a of the second pair of rockers 9, as shown in Figures 5, 6 , 7 and 8 .
  • the pivoting axis of the connecting rod 14 of the first rocker 7a of the first pair of rockers 7 is arranged between the pivot points thereof with the installation base 2 and the linkage 10, while the pivoting axis of the connecting rod 14 of the first rocker 9a of the second pair of rockers 9 is located on a protrusion 18 of the first rocker, outside the pivot points thereof with the linkage 10 and the end arm 3.
  • the connecting rod 14 enables the synchronous angular movement of the pairs of rockers 7 and 9 with respect to the linkage 10, as well as the automatic movement of the second quadrilateral 8 as a consequence of the movement of the first quadrilateral 6 which is driven by way of the actuation of the first actuator 15.
  • the longitudinal axis 10a always remains vertical, while the angular variation between the linkage 10 and the first quadrilaterals 6 is greater than the angular variation defined between the linkage itself and the second quadrilateral 8.
  • the second quadrilateral 8 forms an angle of approximately 90° with the linkage 10 and the first quadrilateral 6 forms a smaller angle, of approximately 65°, with the linkage, whereas in the extended working configuration both quadrilaterals 6 and 8 form the same angle (comprised between 90° and 180°) with the linkage 10.
  • the aerial platform 1 in the compact transport configuration can be easily transported by a means of transport, such as for example a self-propelled wheeled base or a self-propelled tracked base, to the workplace. After its stabilization on the ground, the aerial platform 1 begins the transition to the extended working configuration. Firstly, the end arm 3 can be extended alone, by actuation of the second actuator 16, leaving the remaining components of the articulated arm in the compact configuration, as illustrated in Figure 4 . In such intermediate configuration the end arm 3 can reach, thanks to its telescopic elongation, intermediate heights without extending the two quadrilaterals 6 and 8, thus making it possible to carry out work at an elevated height even in enclosed spaces with ceilings that are not particularly high.
  • a means of transport such as for example a self-propelled wheeled base or a self-propelled tracked base
  • the installation base 2 can rotate freely about the rotation axis 12 with no limitation since its positioning on the loading surface 101 and the compactness of the dimensions of the articulated arm prevent collisions with the driver's cab 102. If the working elevation required is higher, the platform is extended further by operation of the first actuator 15.
  • the extension of the first actuator 15 enables the angular spacing of the first rocker 7a of the first pair of rockers 7 from the installation base 2.
  • the return to the compact transport configuration is defined by the contraction of the first actuator 15 and of the second actuator 16.
  • the aerial platform with reduced space occupation achieves the intended aim and objects in that it makes it possible to reach elevated working heights and is capable of being installed on a normal means of transport, without requiring the use of special means for its transport.
  • the greater length of the linkage with respect to the dimensions of conventional linkages and the inclined positioning of the first articulated quadrilateral with respect to a horizontal plane make it possible to increase the height extension of the platform while also offering limited encumbrance dimensions in the compact configuration, which enable its transport on a normal means of transport, without requiring the use of special means of transport that are particularly cumbersome.
  • Another advantage of the aerial platform consists in the fact that it is possible to work at low heights without any limitation.
  • the platform can even be used in a configuration in which it is not completely extended without the risk of colliding with parts of the means of transport, such as for example the driver's cab, during rotation.
  • the aerial platform consists in the fact that it can be used at low working heights in enclosed environments.
  • the aerial platform can be used even in enclosed spaces with ceilings that are not particularly high, such as for example factory sheds, making it possible to use a single aerial platform both inside and outside such structures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Liquid Crystal Substances (AREA)
  • Artificial Filaments (AREA)

Claims (8)

  1. Plate-forme élévatrice (1) occupant un espace réduit, qui peut être associée à des moyens de transport (100), et qui présente un bras articulé qui comprend une base d'installation (2) qui peut être associée à un plancher de chargement (101) desdits moyens de transport (100), un bras d'extrémité (3) doté d'une extrémité libre (4) à laquelle est associé un poste de travail (5), un premier quadrilatère articulé (6) doté d'une première paire de bras oscillants (7) qui sont mutuellement parallèles, avec des premières extrémités respectives qui pivotent par rapport à ladite base d'installation (2), un second quadrilatère articulé (8) doté d'une seconde paire de bras oscillants (9) qui sont mutuellement parallèles, avec des premières extrémités respectives qui pivotent par rapport audit bras d'extrémité (3), une tringlerie de connexion (10) par rapport à laquelle les secondes extrémités respectives desdites première et seconde paires de bras oscillants (7, 9) et des moyens d'actionnement (11) pivotent pour la transition de ladite plate-forme élévatrice entre une configuration de travail déployée et une configuration de transport compacte, dans ladite configuration de travail déployée ladite extrémité libre (4) étant davantage espacée de ladite base d'installation (2) que dans ladite configuration de transport compacte, dans ladite configuration de transport compacte ladite première paire de bras oscillants (7) et ladite seconde paire de bras oscillants (9) sont agencées de manière transversale l'une par rapport à l'autre et de façon à diverger au niveau de ladite tringlerie (10) ; ladite plate-forme élévatrice (1) étant caractérisée en ce que :
    - ledit bras d'extrémité (3) est du type télescopique, et :
    - dans ladite configuration de transport compacte, l'axe longitudinal (3a) dudit bras d'extrémité (3) est agencé sensiblement parallèle à ladite première paire de bras oscillants (7), et ladite seconde paire de bras oscillants (9) est agencée sensiblement de manière horizontale, et :
    - dans ladite configuration de transport compacte, l'extrémité dudit bras d'extrémité (3) qui pivote par rapport audit second quadrilatère (8), peut être agencée au-dessus de la cabine du conducteur (102) desdits moyens de transport (100).
  2. Plate-forme élévatrice (1) selon la revendication 1, caractérisée en ce que dans ladite configuration de transport compacte, ladite tringlerie (10) présente un axe longitudinal respectif (10a) qui est agencé sensiblement de manière verticale.
  3. Plate-forme élévatrice (1) selon une ou plusieurs des revendications précédentes, caractérisée en ce que dans ladite configuration de transport compacte, ladite extrémité libre (4) est agencée à un niveau plus bas que celui de ladite base d'installation (2).
  4. Plate-forme élévatrice (1) selon une ou plusieurs des revendications précédentes, caractérisée en ce que dans ladite configuration de transport compacte, ladite extrémité libre (4) peut être positionnée sous ledit plancher de chargement (101).
  5. Plate-forme élévatrice (1) selon une ou plusieurs des revendications précédentes, caractérisée en ce que dans ladite configuration de transport compacte, ledit axe longitudinal (3a) dudit bras d'extrémité (3) présente une inclination par rapport à un plan horizontal, qui est sensiblement comprise entre 20° et 30°, et en ce que ladite extrémité libre (4) peut être positionnée de façon à être dirigée vers l'arrière desdits moyens de transport (100).
  6. Plate-forme élévatrice (1) selon une ou plusieurs des revendications précédentes, caractérisée en ce que ladite base d'installation (2) est associée de manière rotative audit plancher le chargement (101) autour d'un axe de rotation vertical (12), ledit axe de rotation (12) pouvant être agencé sur ledit plancher de chargement (101) par rapport à ladite cabine du conducteur (102) à une distance (D) plus grande que l'occupation d'espace radiale (R) définie entre ledit axe de rotation lui-même et ladite tringlerie (10) dans ladite configuration de transport compacte.
  7. Plate-forme élévatrice (1) selon une ou plusieurs des revendications précédentes, caractérisée en ce que lesdits moyens d'actionnement (11) comprennent une tige de connexion (14) qui est associée de manière mobile à ladite tringlerie (10) et qui est associée, grâce aux extrémités opposées respectives, à un premier bras oscillant (7a) de ladite première paire de bras oscillants (7), et à un premier bras oscillant (9a) de ladite seconde paire de bras oscillants (9), au cours de la transition entre ladite configuration de transport compacte et ladite configuration de travail déployée, ladite tige de connexion (14) permettant le déplacement angulaire synchrone de ladite première paire de bras oscillants (7) et de ladite seconde paire de bras oscillants (9) par rapport à ladite tringlerie (10), et le déplacement automatique de l'un desdits quadrilatères (6, 8) suivant le déplacement actionné de l'autre desdits quadrilatères (8, 6).
  8. Plate-forme élévatrice (1) selon une ou plusieurs des revendications précédentes, caractérisée en ce que lesdits moyens d'actionnement (11) comprennent au moins deux actionneurs (15, 16), un premier (15) d'entre eux étant interposé entre ladite base d'installation (2) et ledit premier quadrilatère (6), et un actionneur (16) étant interposé entre ledit bras d'extrémité (3) et ledit second quadrilatère (8).
EP14163599.5A 2013-04-12 2014-04-04 Plateforme aérienne Not-in-force EP2789572B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000095A ITMO20130095A1 (it) 2013-04-12 2013-04-12 Piattaforma aerea a ridotto ingombro.

Publications (2)

Publication Number Publication Date
EP2789572A1 EP2789572A1 (fr) 2014-10-15
EP2789572B1 true EP2789572B1 (fr) 2015-12-09

Family

ID=48628805

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14163599.5A Not-in-force EP2789572B1 (fr) 2013-04-12 2014-04-04 Plateforme aérienne

Country Status (3)

Country Link
EP (1) EP2789572B1 (fr)
CN (1) CN104098054A (fr)
IT (1) ITMO20130095A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1019380B (zh) * 1989-12-30 1992-12-09 建设部北京建筑机械综合研究所 自行式可调方位、倾角、悬臂举升平台
CN2106826U (zh) * 1991-11-29 1992-06-10 郁简 微型高空作业车
FR2732001B1 (fr) * 1995-03-24 1997-05-16 Manitou Bf Dispositif elevateur de personnel
US5584356A (en) * 1995-05-31 1996-12-17 Kidde Industries, Inc. Centerline double riser with single lift cylinder and link for a low profile self propelled aerial work platform
EP1340712B1 (fr) * 1997-01-31 2006-06-28 JLG Industries, Inc. Appareil de levage comprenant un bras articulé à double parallélogramme
CA2227986C (fr) * 1997-01-31 2004-12-28 Kidde Industries, Inc. Appareil de levage muni d'un ensemble articule de double fleche sous forme de parallelogramme
US5934409A (en) * 1997-06-26 1999-08-10 Genie Industries, Inc. Trailer personnel lift with a level sensor and manually set outriggers
DE20202256U1 (de) * 2002-02-14 2002-06-06 Hematec Arbeitsbuehnen Gmbh Lkw-Arbeitsbühne
CN2863755Y (zh) * 2005-12-26 2007-01-31 中汽商用汽车有限公司(杭州) 一种高空作业车平台内拉杆调平装置

Also Published As

Publication number Publication date
CN104098054A (zh) 2014-10-15
ITMO20130095A1 (it) 2014-10-13
EP2789572A1 (fr) 2014-10-15

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