EP0569277B1 - Electric lifting vehicle with a telescopic boom - Google Patents
Electric lifting vehicle with a telescopic boom Download PDFInfo
- Publication number
- EP0569277B1 EP0569277B1 EP19930401136 EP93401136A EP0569277B1 EP 0569277 B1 EP0569277 B1 EP 0569277B1 EP 19930401136 EP19930401136 EP 19930401136 EP 93401136 A EP93401136 A EP 93401136A EP 0569277 B1 EP0569277 B1 EP 0569277B1
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- European Patent Office
- Prior art keywords
- chassis
- trolley according
- handling trolley
- wheels
- platform
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- 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
- B66F9/065—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 non-masted
- B66F9/0655—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 non-masted with a telescopic boom
Definitions
- the invention relates to industrial trucks.
- Electric carts are reserved for industrial use because of their flexibility and simplicity of driving, their absence of noise and pollution, their reduced dimensions which allows them to move easily in a congested environment, while thermal carts are generally intended for outdoor use, are able to cross slopes and lift larger loads.
- Thermal carriages use for lifting loads either a front mast system or a telescopic arm system allowing a longitudinal offset of the load, while so far, an electric trolley with telescopic arm has not been produced.
- Known carriages of this type are all equipped with a mast.
- the small width of the electric forklifts, the central location of the driving position and the size of the batteries prevent the adoption of a lifting means for these trucks other than a mast and in particular a telescopic arm.
- the object of the present invention is to provide an industrial handling trolley with an electrical energy source, the lifting equipment of which is constituted by a telescopic arm, which remains very compact in order to be able to move easily in a room. congested, has an arm arrangement ensuring unobstructed visibility, has a good balance of the masses and a good weight centering which allows to obtain a large lifting capacity and longitudinal offset safely, allows easy and fast handling of accumulator tanks and retains an acceptable autonomy.
- the trolley according to the invention comprises, in a chassis which will be described in more detail in relation to FIG. 4, a telescopic arm 1 arranged in the median longitudinal axis of the trolley (FIG. 3) on the left side of this arm 1, a driving and maneuvering station 2 provided with a seat 3 mounted on a tilting cover 4 closing a removable box 5 in which the electric accumulators 6 are housed.
- the carriage has on its right side a second removable box 7 for another series of electric accumulators 6.
- the chassis carries two front wheels 8, non-steerable and non-drive, and a single rear wheel 9, steerable and drive.
- the driving position 2 is protected by an open cabin 10 extending over practically the entire length of the carriage, from a point located in front of the front wheels 8 to a point located at the rear end of the box.
- accumulators 5 Figure 1).
- the chassis proper is mainly constituted by a longitudinal beam and a transverse beam 12.
- the longitudinal beam consists of two vertical plates 13, 14 fixed to each other by spacers 15.
- the plates 13 and 14 are of such shape that they also constitute the uprights of the bracket 16 of articulations of the lifting arm 1.
- the beam 12 is constituted as a hollow box also acting as a reservoir for the hydraulic liquid necessary for the operation of the arm.
- the beam 12 is closed at its two ends by flanges 17, 18 which carry the front wheels 8.
- flanges 17, 18 which carry the front wheels 8.
- FIG. 4 shows that the bearing shafts of the front wheels 8 pass through the flanges 17, 18 and are fitted with disc brakes 19.
- the spacers 15 are arranged towards the rear of the plates 13 and 14. This arrangement is advantageous because it allows a well to be formed between the plates in which the arm 1 can be housed in the low position in order to give visibility of the driver. However, it ensures sufficient rigidity of the beam 11 because the lifting forces will be essentially supported by the rear part of the carriage.
- the transverse beam 12 acts as a spacer in the front part.
- a floor 20 which has on either side of the beam 11 a large recess 21 open laterally.
- the opposite edges of this recess 21 have holes 22, reinforced with plates 23, intended to cooperate with centering pins, not shown, provided under the boxes 5 and 7 for housing the accumulators 6.
- Figure 4 also shows how one can very easily, using another forklift represented by its only forks 24, handle the boxes 5 and 7 by lifting them from below. This is an important advantage in view of the fact that these handling operations are very frequent taking into account the need to recharge the accumulators.
- the front end of the beam 11 is situated slightly behind the front limiting plane of the carriage, which provides a space 25 in which at least the support 26 of the deck 27 located at the end of the arm 1 can be retracted, which increases the compactness of the carriage and its stability during its movements with a load close to ground level.
- the floor 20 extends to serve as a support for counterweights 28.
- the floor 20 also has an additional recess 29 for the passage of the rear wheel 9.
- chassis indicates the carrier structure of the carriage, that is to say that on which all the equipment is mounted and which supports all the efforts.
- the transverse part of the chassis can advantageously be replaced by a bridge which while fulfilling the function of beam will ensure the transmission of the torque and / or steering movements at the front wheels.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Handcart (AREA)
Description
L'invention concerne les chariots de manutention.The invention relates to industrial trucks.
On distingue généralement deux grandes catégories de chariots élévateurs à raison des sources d'énergie qu'ils utilisent, aussi bien pour leur déplacement au sol que pour la manoeuvre de leurs moyens de levage : les chariots électriques et les chariots thermiques.There are generally two main categories of forklifts because of the energy sources they use, both for their movement on the ground and for the operation of their lifting means: electric trucks and thermal trucks.
Les chariots électriques sont réservés à un usage industriel en raison de leur souplesse et simplicité de conduite, leur absence de bruit et de pollution, leurs dimensions réduites qui leur permet de se déplacer aisément dans un environnement encombré, tandis que les chariots thermiques sont généralement destinés à un usage en plein air, sont capables de franchir des pentes et de lever des charges plus importantes.Electric carts are reserved for industrial use because of their flexibility and simplicity of driving, their absence of noise and pollution, their reduced dimensions which allows them to move easily in a congested environment, while thermal carts are generally intended for outdoor use, are able to cross slopes and lift larger loads.
Les chariots thermiques utilisent pour le levage des charges soit un système de mât frontal, soit un système de bras télescopique autorisant un déport longitudinal de la charge, tandis que jusqu'à présent, on n'a pas réalisé de chariot électrique à bras télescopique. Les chariots connus de ce type sont tous équipés d'un mât.Thermal carriages use for lifting loads either a front mast system or a telescopic arm system allowing a longitudinal offset of the load, while so far, an electric trolley with telescopic arm has not been produced. Known carriages of this type are all equipped with a mast.
La raison essentielle à cet état de chose tient à la place importante occupée par les bacs d'accumulateurs nécessaires à l'alimentation en énergie électrique de ces chariots.The main reason for this state of affairs is the important place occupied by the accumulator tanks necessary for the supply of electrical energy to these carts.
Généralement, ceux-ci occupent toute la largeur du chariot sensiblement au centre de celui-ci. Ils sont recouverts par un capotage servant de plan de fixation au siège du conducteur.Generally, these occupy the entire width of the carriage substantially in the center thereof. They are covered by a cover serving as an attachment plane to the driver's seat.
Pour l'entretien et le changement des accumulateurs, il faut prévoir de basculer le siège et de soulever les bacs d'accumulateurs par le haut.When servicing and changing the accumulators, you must plan to tilt the seat and lift the accumulator bins from above.
La faible largeur des chariots élévateurs électriques, l'emplacement central du poste de conduite et l'encombrement des batteries empêchent d'adopter pour ces chariots un moyen de levage autre qu'un mât et en particulier un bras télescopique.The small width of the electric forklifts, the central location of the driving position and the size of the batteries prevent the adoption of a lifting means for these trucks other than a mast and in particular a telescopic arm.
L'implantation d'un bras télescopique sur les chariots électriques actuellement connus implique de modifier entièrement la conception de ce genre de chariot. En effet, alors que dans les chariots à mât de levage actuels, les efforts de levage sont supportés sur la ligne d'axe des roues avant, dans un chariot à bras, ces efforts de levage sont supportés à l'arrière au niveau du point d'articulation du bras. Il est en outre impératif de conserver une bonne visibilité latérale et arrière pour le conducteur malgré la présence du bras s'étendant sur toute la longueur du chariot à un niveau proche du périmètre de vision du conducteur.The implantation of a telescopic arm on electric trolleys currently known involves completely modifying the design of this kind of trolley. Indeed, while in current lift mast carriages, the lifting efforts are supported on the center line of the front wheels, in an armored carriage, these lifting efforts are supported at the rear at the point arm articulation. It is also imperative to maintain good lateral and rear visibility for the driver despite the presence of the arm extending over the entire length of the truck at a level close to the driver's vision perimeter.
L'objet de la présente invention est de procurer un chariot de manutention industriel à source d'énergie électrique dont l'équipement de levage soit constitué par un bras télescopique, qui reste d'une grande compacité afin de pouvoir se déplacer aisément dans un local encombré, ait une disposition du bras assurant une visibilité sans entrave, ait un bon équilibrage des masses et un bon centrage des poids qui permette d'obtenir une capacité importante de levage et de déport longitudinal en toute sécurité, permette une manutention facile et rapide des bacs d'accumulateurs et conserve une autonomie acceptable.The object of the present invention is to provide an industrial handling trolley with an electrical energy source, the lifting equipment of which is constituted by a telescopic arm, which remains very compact in order to be able to move easily in a room. congested, has an arm arrangement ensuring unobstructed visibility, has a good balance of the masses and a good weight centering which allows to obtain a large lifting capacity and longitudinal offset safely, allows easy and fast handling of accumulator tanks and retains an acceptable autonomy.
L'invention est matérialisée par un chariot de manutention industriel à source d'énergie électrique comportant un châssis, deux roues avant et au moins une roue arrière, un poste de conduite et de manoeuvre, au moins un logement pour les accumulateurs et un équipement de levage supporté par le châssis, caractérisé en ce que :
- l'équipement de levage est constitué par un bras télescopique articulé à l'arrière du châssis et disposé sensiblement dans l'axe longitudinal médian du chariot,
- le châssis est constitué par deux poutres orthogonales : une poutre longitudinale portant à l'arrière la potence du bras de levage et une poutre transversale fixée à la poutre longitudinale et portant les roues avant,
- et en ce qu'au moins sur un côté de la poutre longitudinale, en arrière de la poutre transversale et en avant de la ou des roues arrière, le châssis porte un plancher ouvert latéralement vers l'extérieur qui supporte au moins un caisson amovible pour des accumulateurs électriques.
- the lifting equipment is constituted by a telescopic arm articulated at the rear of the chassis and arranged substantially in the median longitudinal axis of the carriage,
- the chassis is constituted by two orthogonal beams: a longitudinal beam carrying at the rear the bracket of the lifting arm and a transverse beam fixed to the longitudinal beam and carrying the front wheels,
- and in that at least on one side of the longitudinal beam, behind the transverse beam and in front of the rear wheel or wheels, the chassis carries a floor open laterally outwards which supports at least one removable box for electric accumulators.
On dégage ainsi sensiblement dans l'axe longitudinal médian du chariot un logement qui permet au bras en position basse de transport de ne pas obstruer la visibilité latérale et vers l'arrière du conducteur et on obtient grâce à la position du caisson d'accumulateur un centrage des poids favorable aux performances de levage de la machine. En outre, grâce à l'amovibilité du caisson d'accumulateurs et à l'ouverture latérale du plancher qui le porte, l'entretien et la manutention des accumulateurs peut s'effectuer très aisément par le côté et le dessous, par exemple à l'aide d'un autre chariot élévateur dont les fourches sont engagées sous le caisson amovible. De plus, cette disposition du châssis permet de conserver une grande compacité au chariot selon l'invention.There is thus substantially released in the median longitudinal axis of the carriage a housing which allows the arm in the low transport position not to obstruct the lateral and rear visibility of the driver and thanks to the position of the accumulator box, a weight centering favorable to the lifting performance of the machine. In addition, thanks to the removable storage compartment and the lateral opening of the floor carrying it, maintenance and handling of the accumulators can be carried out very easily from the side and from below, for example on the using another forklift, the forks of which are engaged under the removable box. In addition, this arrangement of the chassis makes it possible to keep the cart according to the invention very compact.
Selon d'autres caractéristiques inventives :
- le chariot est muni d'un plancher de support s'étendant symétriquement de part et d'autre de la poutre longitudinale du châssis pour deux caissons d'accumulateurs distincts,
- la poutre transversale du châssis est disposée en arrière des roues avant et porte deux flasques verticaux qui portent lesdites roues avant ;
- la poutre longitudinale du châssis est constituée par deux plaques verticales entretoisées dans lesquelles sont également formés les montants de la potence d'articulation du bras télescopique,
- la poutre transversale du châssis est creuse et forme un caisson étanche constituant un réservoir de liquide hydraulique,
- la partie arrière du plancher de support des caissons d'accumulateur s'étend au-delà desdits caissons pour former un support pour des contrepoids.
- le chariot est équipé d'une roue arrière et les contrepoids sont disposés sur le plancher de part et d'autre de ladite roue,
- le chariot est équipé de deux roues arrière et les contrepoids sont disposés sur le plancher entre lesdites roues,
- le dessous des caissons amovibles logeant les accumulateurs est équipé de pions de centrage et de calage coopérant avec des trous du plancher
- La figure 1 est une vue en élévation d'un chariot électrique selon l'invention du côté du poste de conduite;
- La figure 2 est une vue en élévation de face, bras levé, du chariot de la figure 1;
- La figure 3 et une vue de dessus avec arrachement partiel de la partie arrière du chariot de la figure 1;
- La figure 4 est une vue schématique en plan du châssis du chariot des figures précédentes, le bras télescopique, les capotages et le poste de pilotage ayant été enlevés.
- the carriage is provided with a support floor extending symmetrically on either side of the longitudinal beam of the chassis for two separate accumulator boxes,
- the transverse beam of the chassis is disposed behind the front wheels and carries two vertical flanges which carry said front wheels;
- the longitudinal beam of the chassis consists of two vertical braced plates in which the uprights of the articulation bracket of the telescopic arm are also formed,
- the transverse beam of the chassis is hollow and forms a sealed box constituting a reservoir of hydraulic fluid,
- the rear part of the support floor of the accumulator boxes extends beyond said boxes to form a support for counterweights.
- the carriage is fitted with a rear wheel and the counterweights are arranged on the floor on either side of said wheel,
- the carriage is equipped with two rear wheels and the counterweights are arranged on the floor between said wheels,
- the underside of the removable boxes housing the accumulators is equipped with centering and wedging pins cooperating with holes in the floor
- Figure 1 is an elevational view of an electric cart according to the invention from the side of the driving position;
- Figure 2 is a front elevational view, arm raised, of the carriage of Figure 1;
- Figure 3 and a top view with partial cutaway of the rear part of the carriage of Figure 1;
- Figure 4 is a schematic plan view of the chassis of the carriage of the preceding figures, the telescopic arm, the cowlings and the cockpit having been removed.
Comme on le voit sur les figures, le chariot selon l'invention comporte, dans un châssis qui sera décrit plus en détail en relation avec la figure 4, un bras télescopique 1 disposé dans l'axe longitudinal médian du chariot (figure 3) sur le côté gauche de ce bras 1, un poste de conduite et de manoeuvre 2 muni d'un siège 3 monté sur un capot 4 basculant fermant un caisson amovible 5 dans lequel sont logés les accumulateurs électriques 6.As can be seen in the figures, the trolley according to the invention comprises, in a chassis which will be described in more detail in relation to FIG. 4, a
Symétriquement par rapport au bras 1, le chariot comporte sur son côté droit un deuxième caisson amovible 7 pour une autre série d'accumulateurs électriques 6.Symmetrically with respect to the
Dans cet exemple de réalisation, le châssis porte deux roues avant 8, non directrices et non motrices, et une roue arrière unique 9, directrice et motrice.In this exemplary embodiment, the chassis carries two
Le poste de conduite 2 est protégé par une cabine ouverte 10 s'étendant sur pratiquement toute la longueur du chariot, depuis un point situé en avant des roues avant 8 jusqu'à un point situé au niveau de l'extrémité arrière du caisson d'accumulateurs 5 (figure 1).The
En se reportant à la figure 4, on voit que le châssis proprement dit est constitué principalement par une poutre longitudinale et une poutre transversale 12.Referring to FIG. 4, it can be seen that the chassis proper is mainly constituted by a longitudinal beam and a
La poutre longitudinale est constituée par deux plaques verticales 13, 14 fixées entre elles par des entretoises 15.The longitudinal beam consists of two
Les plaques 13 et 14 sont de forme telle qu'elles constituent également les montants de la potence 16 d'articulations du bras de levage 1.The
La poutre 12 est constituée comme un caisson creux faisant également fonction de réservoir pour le liquide hydraulique nécessaire à la manoeuvre du bras.The
La poutre 12 est fermée à ses deux extrémités par des flasques 17, 18 qui portent les roues avant 8. On voit sur la figure 4 que les arbres porteurs des roues avant 8 traversent les flasques 17, 18 et sont équipés de freins à disques 19.The
On voit également que les entretoises 15 sont disposées vers l'arrière des plaques 13 et 14. Cette disposition est avantageuse car elle permet de ménager entre les plaques un puits dans lequel le bras 1 pourra venir se loger en position basse afin de dégager la visibilité du conducteur. Elle assure cependant une rigidité suffisante de la poutre 11 car les efforts de levage seront essentiellement supportés par la partie arrière du chariot. En outre, la poutre transversale 12 fait fonction d'entretoise en partie avant.It can also be seen that the
Entre l'arrière de la poutre transversale 12 et l'extrémité arrière du chariot, sous la poutre longitudinale 11 est fixé un plancher 20 qui comporte de part et d'autre de la poutre 11 un large évidement 21 ouvert latéralement. Les bords opposés de cet évidement 21 comportent des trous 22, renforcés de plaquettes 23, destinés à coopérer avec des pions de centrage, non représentés, prévus sous les caissons 5 et 7 de logement des accumulateurs 6.Between the rear of the
La figure 4 montre également comment on peut très aisément, à l'aide d'un autre chariot élévateur représenté par ses seules fourches 24, manutentionner les caissons 5 et 7 en les soulevant par le dessous. Ceci est un avantage important en vue du fait que ces manutentions sont très fréquentes compte-tenu de la nécessité de recharger les accumulateurs.Figure 4 also shows how one can very easily, using another forklift represented by its
On voit aussi sur la figure 5, que l'extrémité avant de la poutre 11 est située légèrement en retrait par rapport au plan de limitation avant du chariot, ce qui ménage un espace 25 dans lequel au moins le support 26 du tablier 27 situé à l'extrémité du bras 1 peut être rétracté, ce qui augmente la compacité du chariot et sa stabilité lors de ses déplacements avec une charge proche du niveau du sol.It can also be seen in FIG. 5, that the front end of the
En arrière de l'emplacement des caissons 5 et 7, le plancher 20 se prolonge pour servir de support à des contrepoids 28. Dans l'axe longitudinal médian du chariot, le plancher 20 comporte en outre un évidement supplémentaire 29 pour le passage de la roue arrière 9.Behind the location of the
Bien entendu sans sortir du cadre de l'invention, d'autres variantes de réalisations pourraient être adoptées par exemple :
- au lieu d'être disposé selon l'axe longitudinal médian du chariot, le bras télescopique 1 peut être décalé sur un côté par rapport à cet axe et être muni d'un dispositif connu en soi de déport latéral du tablier porteur d'outil de sorte que les charges manutentionnées soient centrées selon cet axe longitudinal médian.
Dans une telle disposition, le caisson à accumulateurs situé sous le poste de conduite pourrait être de taille plus importante, tandis que le caisson opposé pourrait être diminué, voire totalement supprimé, ce qui permettrait de construire un chariot d'autonomie acceptable et de largeur très réduite correspondant bien aux conditions d'utilisation industrielles dans un environnement encombré dans lequel les voies de circulation sont très étroites; - au lieu de comporter deux roues avant non motrices non directrices et une roue arrière directrice et motrice, le chariot pourrait adopter tout autre système de roues notamment deux roues avant motrices et une roue arrière directrice, deux roues avant motrices et directrices et une roue arrière non motrice non directrice, deux roues avant et deux roues arrière motrices et/ou directrices etc...
- au lieu d'être constitué par deux plaques entretoisées, la poutre longitudinale pourrait être formée d'un caisson creux qui pourrait constituer également un réservoir ou une gaine de passage des conduites, canalisations et câbles divers qui sont nécessaires aux liaisons entre les différents organes de la machine;
- au lieu d'être portées par des flasques fixées à la poutre transversale, les roues avant pourraient être directement montées aux extrémités de cette poutre, ou d'un essieu remplaçant cette poutre.
- dans le cas ou le chariot est équipé de deux roues arrière, le plancher comportera deux évidements latéraux pour le passage de ces roues et les contrepoids seront supportés par la partie de plancher s'étendant entre les roues arrière.
- instead of being arranged along the median longitudinal axis of the carriage, the
telescopic arm 1 can be offset on one side with respect to this axis and be provided with a device known per se for lateral offset of the tool carrying deck so that the loads handled are centered along this median longitudinal axis.
In such an arrangement, the accumulator box located under the driving position could be of larger size, while the opposite box could be reduced, or even completely eliminated, which would make it possible to build a cart of acceptable autonomy and very wide reduced corresponding well to industrial conditions of use in a congested environment in which the traffic lanes are very narrow; - instead of having two front non-driving non-driving wheels and a rear driving and driving wheel, the truck could adopt any other wheel system, in particular two front driving wheels and a rear driving wheel, two front driving and driving wheels and a rear wheel not driving non-driving, two front wheels and two rear driving and / or steering wheels etc ...
- instead of being constituted by two braced plates, the longitudinal beam could be formed of a hollow box which could also constitute a reservoir or a sheath for passage of the various pipes, conduits and cables which are necessary for the connections between the various organs of the machine;
- instead of being carried by flanges fixed to the transverse beam, the front wheels could be directly mounted at the ends of this beam, or of an axle replacing this beam.
- in the case where the trolley is equipped with two rear wheels, the floor will have two lateral recesses for the passage of these wheels and the counterweights will be supported by the floor part extending between the rear wheels.
Tout au long de la présente description, le terme châssis indique la structure porteuse du chariot, c'est-à-dire celle sur laquelle sont montés tous les équipements et qui supporte tous les efforts. Selon une variante possible de réalisation de l'invention, dans le cas d'un chariot à roues avant motrices et/ou directrices la partie transversale du châssis pourra être avantageusement remplacée par un pont qui tout en remplissant la fonction de poutre assurera la transmission du couple et/ou des mouvements de direction aux roues avant.Throughout this description, the term chassis indicates the carrier structure of the carriage, that is to say that on which all the equipment is mounted and which supports all the efforts. According to a possible variant embodiment of the invention, in the case of a trolley with front-wheel drive and / or steering the transverse part of the chassis can advantageously be replaced by a bridge which while fulfilling the function of beam will ensure the transmission of the torque and / or steering movements at the front wheels.
Claims (10)
- An industrial handling trolley having an electrical energy supply, including a chassis, two front wheels and at least one rear wheel, a driving and control station, at least one housing for the batteries and lifting equipment supported by the chassis, characterised in that:- the lifting equipment is constituted by a telescopic boom (1) pivoted at the rear of the chassis and disposed substantially in the median longitudinal axis of the trolley,- the chassis is constituted by two orthogonal beams (11, 12) : a longitudinal beam (11) carrying rearwardly the bracket (16) of the lifting boom (1) and a transverse beam (12) fixed to the longitudinal beam (11) and carrying the front wheels (8),- and in that at least on one side of the longitudinal beam (11), at the rear of the transverse beam (12) and at the front of the rear wheel or wheels (9), the chassis carries a platform (20) open laterally towards the exterior which supports at least one removable box (5, 7) for electric batteries (6).
- A handling trolley according to Claim 1, characterised in that the trolley is provided with a support platform (20) extending symmetrically to either side of the longitudinal beam (11) of the chassis for two separate battery boxes (5, 7).
- A handling trolley according to Claim 1 or 2, characterised in that the transverse beam (12) of the chassis is disposed to the rear of the front wheels (8) and carries two vertical flanges (17, 18) which carry the front wheels (8).
- A handling trolley according to any one of the preceding Claims, characterised in that the longitudinal beam (11) of the chassis is constituted by two braced vertical plates (13, 14) in which are also formed the uprights of the pivoting bracket (16) of the telescopic boom (1).
- A handling trolley according to any one of the preceding claims, characterised in that the transverse beam (12) of the chassis is hollow and forms a sealed box constituting a reservoir of hydraulic liquid.
- A handling trolley according to any one of the preceding claims, characterised in that the rear portion of the platform (20) supporting the battery boxes (5, 7) extends beyond the boxes to form a support for counterweights (28).
- A handling trolley according to Claim 6, characterised in that the trolley is equipped with a rear wheel (9) and the counterweights (28) are disposed on the platform (20) to either side of the wheel.
- A handling trolley according to Claim 6, characterised in that the trolley is equipped with two rear wheels and the counterweights (28) are disposed on the platform between the wheels.
- A handling trolley according to any one of the preceding claims, characterised in that the underside of the removable boxes (5, 7) housing the batteries is equipped with centering and securing spigots cooperating with holes (22) in the platform (20).
- A handling trolley according to any one of the preceding claims, characterised in that the transverse beam (12) is replaced by a bridge ensuring the transmission of torque and/or directional movements to the front wheels.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9205626 | 1992-05-07 | ||
| FR9205626A FR2690895A1 (en) | 1992-05-07 | 1992-05-07 | Electric forklift with telescopic arm. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0569277A1 EP0569277A1 (en) | 1993-11-10 |
| EP0569277B1 true EP0569277B1 (en) | 1995-10-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19930401136 Revoked EP0569277B1 (en) | 1992-05-07 | 1993-05-03 | Electric lifting vehicle with a telescopic boom |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0569277B1 (en) |
| DE (1) | DE69300582T2 (en) |
| FR (1) | FR2690895A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220204326A1 (en) * | 2020-12-28 | 2022-06-30 | Manitou Italia S.R.L. | Electric telehandler |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2158232C (en) † | 1994-09-14 | 2001-08-07 | Marcel-Claude Braud | Motor trolley with telescoping arm |
| DE69800866T2 (en) * | 1998-04-17 | 2001-11-15 | Liftcon Technologies Ltd., Shannon | Portable pallet truck with telescopic lifting arm |
| DE19948831B4 (en) * | 1999-10-06 | 2005-06-30 | Terex-Demag Gmbh & Co. Kg | mobile crane |
| DE10145991B4 (en) * | 2001-09-18 | 2021-02-11 | Linde Material Handling Gmbh | Frame for a battery-operated industrial truck |
| FR2837809B1 (en) * | 2002-03-29 | 2004-11-12 | Manitou Bf | LIFT TRUCK WITH VARIABLE RANGE WITH THREE WHEELS |
| DE102012211014A1 (en) * | 2012-06-27 | 2014-01-02 | Jungheinrich Aktiengesellschaft | Industrial truck i.e. forklift, has interconnect structure including lateral width in middle section at longitudinal dimension small than width of structure at end, where structure comprises single-piece passing through-portions |
| GB2572356B (en) * | 2018-03-27 | 2022-09-14 | Bamford Excavators Ltd | Load-handling vehicle |
| IT201900010098A1 (en) | 2019-06-26 | 2020-12-26 | Merlo Project Srl | ELECTRIC FORKLIFT |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1884862A (en) * | 1929-09-07 | 1932-10-25 | Baker Raulang Co | Industrial truck |
| US3018011A (en) * | 1957-08-29 | 1962-01-23 | Elwell Parker Electric Co | Industrial truck |
| FR1211553A (en) * | 1957-12-03 | 1960-03-17 | Yale & Towne Mfg Co | Industrial trolley |
| US3047172A (en) * | 1959-07-22 | 1962-07-31 | Yale & Towne Mfg Co | Lift truck |
| FR1474254A (en) * | 1966-03-01 | 1967-03-24 | Hydraulic forklift with deformable quadrilateral mobile arm | |
| FR1527413A (en) * | 1967-06-14 | 1968-05-31 | Eaton Yale & Towne | Universal Forklift |
| DE2116842A1 (en) * | 1970-04-08 | 1971-10-21 | J Tranchero | Mobile crane designed for mounting on motor vehicles with three hydraulically controlled lifting stages |
| US4034875A (en) * | 1974-10-12 | 1977-07-12 | The Liner Concrete Machinery Company Limited | Load handling vehicle |
| FR2395939A1 (en) * | 1977-06-29 | 1979-01-26 | Renault | PERFECTED FORKLIFT |
-
1992
- 1992-05-07 FR FR9205626A patent/FR2690895A1/en active Granted
-
1993
- 1993-05-03 EP EP19930401136 patent/EP0569277B1/en not_active Revoked
- 1993-05-03 DE DE1993600582 patent/DE69300582T2/en not_active Revoked
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220204326A1 (en) * | 2020-12-28 | 2022-06-30 | Manitou Italia S.R.L. | Electric telehandler |
| US11993496B2 (en) * | 2020-12-28 | 2024-05-28 | Manitou Italia S.R.L. | Electric telehandler |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2690895B1 (en) | 1994-07-13 |
| DE69300582T2 (en) | 1996-06-05 |
| FR2690895A1 (en) | 1993-11-12 |
| EP0569277A1 (en) | 1993-11-10 |
| DE69300582D1 (en) | 1995-11-09 |
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