EP0939055B1 - Lifting mast for handling apparatus such as a stacker truck - Google Patents

Lifting mast for handling apparatus such as a stacker truck Download PDF

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Publication number
EP0939055B1
EP0939055B1 EP19990400495 EP99400495A EP0939055B1 EP 0939055 B1 EP0939055 B1 EP 0939055B1 EP 19990400495 EP19990400495 EP 19990400495 EP 99400495 A EP99400495 A EP 99400495A EP 0939055 B1 EP0939055 B1 EP 0939055B1
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EP
European Patent Office
Prior art keywords
section
mast
rollers
lifting mast
lifting
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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.)
Expired - Lifetime
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EP19990400495
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German (de)
French (fr)
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EP0939055A1 (en
Inventor
Christophe Schultz
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Loc Manutention SA
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Loc Manutention SA
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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
    • B66F9/075—Constructional features or details
    • B66F9/08—Masts; Guides; Chains

Definitions

  • the invention relates generally to a handling device such as a stacking cart or of a stacking devil and it relates more precisely to a single girder lifting mast.
  • a handling device such as a stacking cart or of a stacking devil
  • Such a mast is already shown in WO-A-84/01765.
  • the frame of the trolleys equipped with lifting is usually formed by two vertical beams resting on a base and between these beams are fixed the lifting systems themselves, for example with chains, which drive forks or trays sliding on these beams.
  • These vertical beams are usually formed of I and U-shaped profiles and are more or less separated from each other depending on the achievements. he is apparent that we are looking for montages that aim to avoid having to have security screens between these beams, and using two very close together, or even a single central beam enveloping moving parts and mechanisms solve this problem of security, at the same time that he gives a new aesthetic to the trolley thus produced. But this beam central must, at the same time that it lends itself to load lifting functions, confer all the strength and rigidity that can be expected from the structure of a trolley subjected to constraints difficult.
  • the invention therefore relates to a lifting mast for handling device like a stacking cart
  • the fixed frame consists on the one hand of a profile in folded sheet metal with a vertical oriented opening forward of the truck on the side of the load transported and on the other hand a reinforcement profile fixed to the other profile and which delimits with it a hollow box on the rear side of the mast, the inside faces of the profile constituted as a raceway for rollers with horizontal axes, carrying at least one mobile mechanism inside the mast.
  • the reinforcing profile is fixed internally to the other profile and the front of the reinforcement profile serves as a raceway for rollers.
  • the outer profile is shaped of U whose V-shaped base constitutes an edge vertical on the rear side of the carriage and in that towards the front, the side walls of said profile return inward by a small ledge.
  • the mobile mechanism is an equipment carriage attached to a chain or strap linked to a support of attachment connected to a fixed point relative to the body of cylinder, the chain returning on a pulley coupled to the head of a cylinder rod.
  • the mobile mechanism is a frame consisting of an interior telescopic beam associated with two rolling guides fitted with two rollers bearing against the reinforcement profile, and rolling on two rollers integral with the profile.
  • Figure 1 an exploded view in elevation of a carriage stacker with a single central mast.
  • Figure 2 a plan view of the carriage according to the figure 1.
  • Figure 3 and 4 sectional views of another variant a central mast respectively at the base and in part high of the mast.
  • FIG. 5 an exploded view in elevation of a mast according to figures (3) and (4).
  • Figures 1 and 2 show a carriage stacker with a single central mast designated in its together by reference 1.
  • the carriage is basically made up of a base plate 2 on which is fixed the mast, and on the sides of which are bent tubes 3 bearing in their ends of the rollers 4.
  • In front of the plate 2 is develop two horizontal beams 5 terminated by bits also fitted with rollers 5.
  • a transverse tube reinforcement 7 extends under the base plate. Above this is fixed to a pumping lever 8 oscillating on the manual hydraulic pump 9.
  • the fixed frame of the central mast is formed by a external profile 1 in folded sheet of general section in U-shape whose base is not flat but V-shaped very open which constitutes a vertical edge 10 which rises from the rear side of the cart.
  • a vertical edge 10 which rises from the rear side of the cart.
  • the side walls 11 of the mast return inward by a small flange 12.
  • a reinforcing profile 13 which delimits a hollow box 14 on the rear side of the mast, as seen more precisely in Figure 2.
  • the reinforcing profile is welded externally to the U-shaped, the main thing being that it forms a box hollow on one side of the mast.
  • the internal face of the flanges 12 and the external face profiles 13 serve as raceways for two pairs of rollers 15 with horizontal axes 16, on which is mounted an equipment carriage 17, shown in low position in Figure 1, and dotted in position high.
  • the carriage 17 is hooked to a chain 18 which makes back on a pulley 19 and whose opposite strand is connected to a fastening support 20 connected to a fixed point by relation to the cylinder body.
  • Pulley 19 is itself mounted on a yoke 21 coupled to the head of a rod of a cylinder 22 passing through a fixed guide 23 provided at the level of attachment support 20.
  • the base 24 of the jack is connected hydraulically at the pump 9.
  • the lever pumping 8 ensures the lifting of the rod 22 and the yoke 21.
  • the chain 18 being fixed to its attachment support 20, drives the carriage in its upward movement.
  • FIG. 3 illustrates another embodiment of profiled mast 1 containing a telescopic beam interior 25.
  • a telescopic beam interior 25 There is a profile close to that described above, the same elements carrying the same references.
  • a rolling guide 26 in shape of S.
  • the mobile beam with its guides forms a mobile frame which can be raised along the fixed profile on the one hand thanks to two rollers 27 with axis horizontal secured to the mobile beam resting against the reinforcing profile 13, and on the other hand two rollers 40 with horizontal axis integral with the profile 1 .
  • On this beam 25 and at its base is welded a plate 29 which carries the two axes of the bearings 27 as well as friction pads 30 bearing against the internal face of each edge 12.
  • Lights 31 provided in the plate 29 contain a rocker 32 allowing the adjustment from the outside, using the small pushers 33, the clearance of the inner beam with respect to the mast.
  • FIG 4 shows the upper section of the mast.
  • the rolling guide 26 contains the rollers 15 of the equipment carriage 17 described with reference to Figures 1 and 2.
  • the carriage is advantageously made up of two pieces of cut sheet metal forming cheeks on which are welded the axes of the rollers 15.
  • the cheeks are joined together by a profile 36 of the type tool holder, in upper position.
  • Other skates 34 are visible between the beam 25 and the reinforcement profile 13.
  • the yoke 21 of the jack head is fixed to the part height of the mobile beam 25.
  • the carriage 17 rolls in the slides 26 of the mobile frame, pulled vertically by strap 35, the opposite strand of which is hooked by a attachment support 20 to the base 24 of the jack, that is to say the base of the fixed part of the mast 1.
  • the upper end of the movable rod 22 of the jack acts on a yoke 21 carrying the pulley 19.
  • the lifting of the rod 22 therefore drives the movable beam 25 which is attached, but also the carriage 17 with a speed of displacement twice that of the beam mobile 25 thanks to the haulage produced by the pulley assembly 19 and strap 35, and this telescopic assembly allows therefore a much greater lifting of the equipment carriage, compared to the system described with reference in Figures 1 and 2.
  • the structure of the mast according to the examples of realization previously described, integrating a box hollow developing vertically from the rear side of the carriage, gives it a rigidity at least equivalent to that of the two vertical beams of the conventional type.
  • the mast thus being closed at the rear part, that is to say on the side where the user stands, the user does not may inadvertently reach the mobile mechanisms of lifting, protected by the hull which constitutes the mast streamlined, which is real progress in terms of safety, and avoid adding hoods or screens protection.
  • this unique mast gives an aesthetic new to the cart and for the user, increases its field of vision on the products transported, and the zones circulation and storage.

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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 se rapporte d'une façon générale à un appareil de manutention du genre d'un chariot gerbeur ou d'un diable gerbeur et elle concerne plus précisément un mât de levage monopoutre. Un tel mât est déja montré dans WO-A- 84/01765.The invention relates generally to a handling device such as a stacking cart or of a stacking devil and it relates more precisely to a single girder lifting mast. Such a mast is already shown in WO-A-84/01765.

L'ossature des chariots équipés de systèmes de levage est généralement formée de deux poutres verticales en appui sur un socle et entre ces poutres sont fixés les systèmes de levage proprement dits, par exemple à chaínes, qui entraínent des fourches ou plateaux coulissant sur ces poutres. Ces poutres verticales sont habituellement formées de profilés en forme de I et de U et sont plus ou moins écartées l'une de l'autre selon les réalisations. Il est apparent que l'on recherche des montages qui visent à éviter d'avoir à disposer des écrans de sécurité entre ces poutres, et le fait d'utiliser deux poutres très rapprochées, voire une seule poutre centrale enveloppant les parties mobiles et les mécanismes, résout ce problème de sécurité, en même temps qu'il donne une nouvelle esthétique au chariot ainsi réalisé. Mais cette poutre centrale doit, en même temps qu'elle se prête aux fonctions de levage des charges, conférer toute la solidité et la rigidité qu'on peut attendre de la structure d'un chariot soumis à des contraintes difficiles.The frame of the trolleys equipped with lifting is usually formed by two vertical beams resting on a base and between these beams are fixed the lifting systems themselves, for example with chains, which drive forks or trays sliding on these beams. These vertical beams are usually formed of I and U-shaped profiles and are more or less separated from each other depending on the achievements. he is apparent that we are looking for montages that aim to avoid having to have security screens between these beams, and using two very close together, or even a single central beam enveloping moving parts and mechanisms solve this problem of security, at the same time that he gives a new aesthetic to the trolley thus produced. But this beam central must, at the same time that it lends itself to load lifting functions, confer all the strength and rigidity that can be expected from the structure of a trolley subjected to constraints difficult.

C'est un mérite de la Demanderesse d'avoir imaginé et réalisé une structure de mât unique de levage qui répond à ces impératifs.It is a merit of the Applicant to have imagined and produced a unique lifting mast structure which meets these imperatives.

L'invention a donc pour objet un mât de levage pour appareil de manutention du genre d'un chariot gerbeur dont la charpente fixe est constituée d'une part d'un profilé en tôle pliée pourvue d'une ouverture verticale orientée vers l'avant du chariot du côté de la charge transportée et d'autre part d'un profilé de renforcement fixé à l'autre profilé et qui délimite avec lui un caisson creux du côté arrière du mât, les faces intérieures du profilé constitué servant de chemin de roulement à des galets à axes horizontaux, porteurs d'au moins un mécanisme mobile à l'intérieur du mât.The invention therefore relates to a lifting mast for handling device like a stacking cart, the fixed frame consists on the one hand of a profile in folded sheet metal with a vertical oriented opening forward of the truck on the side of the load transported and on the other hand a reinforcement profile fixed to the other profile and which delimits with it a hollow box on the rear side of the mast, the inside faces of the profile constituted as a raceway for rollers with horizontal axes, carrying at least one mobile mechanism inside the mast.

Selon un mode de réalisation préférentielle de l'invention, le profilé de renforcement est fixé intérieurement à l'autre profilé et la face avant du profilé de renforcement sert de chemin de roulement aux galets.According to a preferred embodiment of the invention, the reinforcing profile is fixed internally to the other profile and the front of the reinforcement profile serves as a raceway for rollers.

Plus précisément, le profilé extérieur est en forme de U dont la base en forme de V constitue une arête verticale du côté arrière du chariot et en ce que, vers l'avant, les parois latérales dudit profilé font retour vers l'intérieur par un petit rebord.More specifically, the outer profile is shaped of U whose V-shaped base constitutes an edge vertical on the rear side of the carriage and in that towards the front, the side walls of said profile return inward by a small ledge.

Selon une caractéristique principale de l'invention, le mécanisme mobile est un chariot porte équipements accroché à une chaíne ou une sangle liée à un support d'attache relié à un point fixe par rapport au corps de vérin, la chaíne faisant retour sur une poulie attelée à le tête d'une tige de vérin.According to a main characteristic of the invention, the mobile mechanism is an equipment carriage attached to a chain or strap linked to a support of attachment connected to a fixed point relative to the body of cylinder, the chain returning on a pulley coupled to the head of a cylinder rod.

Selon encore une autre caractéristique principale de l'invention, le mécanisme mobile est une charpente constituée d'une poutre télescopique intérieure associée à deux guides de roulage équipés de deux galets de roulement en appui contre le profilé de renforcement, et roulant sur deux galets solidaires du profilé.According to yet another main characteristic of the invention, the mobile mechanism is a frame consisting of an interior telescopic beam associated with two rolling guides fitted with two rollers bearing against the reinforcement profile, and rolling on two rollers integral with the profile.

D'autres caractéristiques particulières et les avantages de l'invention seront perçus à la lecture de la description suivante d'exemples non limitatifs de réalisation dans lesquels il est fait référence aux dessins annexés qui représentent.Other special features and advantages of the invention will be seen on reading the following description of nonlimiting examples of realization in which reference is made to attached drawings which represent.

Figure 1, une vue éclatée en élévation d'un chariot gerbeur à un seul mât central.Figure 1, an exploded view in elevation of a carriage stacker with a single central mast.

Figure 2, une vue en plan du chariot selon la figure 1.Figure 2, a plan view of the carriage according to the figure 1.

Figure 3 et 4 des vues en coupe d'une autre variante d'un mât central respectivement à la base et en partie haute du mât.Figure 3 and 4 sectional views of another variant a central mast respectively at the base and in part high of the mast.

Figure 5, une vue éclatée en élévation d'un mât selon les figures (3) et (4). Figure 5, an exploded view in elevation of a mast according to figures (3) and (4).

On a représenté aux figures 1 et 2 un chariot gerbeur disposant d'un seul mât central désigné dans son ensemble par la référence 1. Le chariot est essentiellement constitué d'une plaque de base 2 sur laquelle est fixée le mât, et sur les côtés de laquelle sont rapportés des tubes coudés 3 portant en leurs extrémités des roulettes 4. En avant de la plaque 2 se développent deux longerons horizontaux 5 terminés par des embouts également équipés de galets 5. Un tube transversal de renfort 7 s'étend sous la plaque de base. Au dessus de celle-ci est fixé un levier de pompage 8 oscillant sur la pompe hydraulique manuelle 9.Figures 1 and 2 show a carriage stacker with a single central mast designated in its together by reference 1. The carriage is basically made up of a base plate 2 on which is fixed the mast, and on the sides of which are bent tubes 3 bearing in their ends of the rollers 4. In front of the plate 2 is develop two horizontal beams 5 terminated by bits also fitted with rollers 5. A transverse tube reinforcement 7 extends under the base plate. Above this is fixed to a pumping lever 8 oscillating on the manual hydraulic pump 9.

La charpente fixe du mât central est formée d'un profilé extérieur 1 en tôle pliée de section générale en forme de U dont la base n'est pas plane mais en forme de V très ouvert qui constitue une arête verticale 10 qui s'élève du côté arrière du chariot. Du côté opposé c'est-à-dire vers l'avant du chariot les parois latérales 11 du mât font retour vers l'intérieur par un petit rebord 12. Entre les deux rebords est ainsi ménagée dans le profilé 1 une ouverture verticale orientée vers l'avant du chariot, c'est-à-dire du côté de la charge transportée. A l'intérieur du mât est soudé un profilé de renforcement 13 qui délimite un caisson creux 14 du côté arrière du mât, comme on le voit plus précisément à la figure 2.The fixed frame of the central mast is formed by a external profile 1 in folded sheet of general section in U-shape whose base is not flat but V-shaped very open which constitutes a vertical edge 10 which rises from the rear side of the cart. On the opposite side i.e. towards the front of the carriage the side walls 11 of the mast return inward by a small flange 12. Between the two flanges is thus formed in the profile 1 a vertical opening facing the front of the carriage, that is to say on the side of the load transported. AT the inside of the mast is welded a reinforcing profile 13 which delimits a hollow box 14 on the rear side of the mast, as seen more precisely in Figure 2.

En variante de réalisation on pourrait prévoir que le profilé de renforcement est soudé extérieurement au profilé en U, l'essentiel étant qu'il forme un caisson creux sur un côté du mât.As an alternative embodiment, provision could be made for the reinforcing profile is welded externally to the U-shaped, the main thing being that it forms a box hollow on one side of the mast.

La face interne des rebords 12 et la face externe des profilés 13 servent de chemins de roulement à deux paires de galets 15 à axes horizontaux 16, sur lesquels est monté un chariot porte-équipements 17, représenté en position basse à la figure 1, et en pointillé en position haute. Le chariot 17 est accroché à une chaíne 18 qui fait retour sur une poulie 19 et dont le brin opposé est relié à un support d'attache 20 relié à un point fixe par rapport au corps de vérin. La poulie 19 est elle-même montée sur une chape 21 attelée à la tête d'une tige d'un vérin 22 traversant un guide fixe 23 prévu au niveau du support d'attache 20. La base 24 du vérin est reliée hydrauliquement à la pompe 9.The internal face of the flanges 12 and the external face profiles 13 serve as raceways for two pairs of rollers 15 with horizontal axes 16, on which is mounted an equipment carriage 17, shown in low position in Figure 1, and dotted in position high. The carriage 17 is hooked to a chain 18 which makes back on a pulley 19 and whose opposite strand is connected to a fastening support 20 connected to a fixed point by relation to the cylinder body. Pulley 19 is itself mounted on a yoke 21 coupled to the head of a rod of a cylinder 22 passing through a fixed guide 23 provided at the level of attachment support 20. The base 24 of the jack is connected hydraulically at the pump 9.

Pour assurer la montée du chariot 17, le levier de pompage 8 assure la levée de la tige 22 et de la chape 21. La chaíne 18 étant fixée à son support d'attache 20, entraíne le chariot dans son mouvement ascendant.To ensure the carriage 17 rises, the lever pumping 8 ensures the lifting of the rod 22 and the yoke 21. The chain 18 being fixed to its attachment support 20, drives the carriage in its upward movement.

La figure 3 illustre un autre mode de réalisation de mât profilé 1 renfermant une poutre télescopique intérieure 25. On retrouve un profilé voisin de celui décrit précédemment, les mêmes éléments portant les mêmes références. Mais à la poutre télescopique intérieure 25, est soudé, de part et d'autre, un guide de roulage 26 en forme de S. La poutre mobile avec ses guides forme une charpente mobile qui peut s'élever le long du profilé fixe grâce d'une part à deux galets de roulement 27 à axe horizontal solidaires de la poutre mobile en appui contre le profilé de renforcement 13, et d'autre part à deux galets de roulement 40 à axe horizontal solidaires du profilé 1.. Sur cette poutre 25 et à sa base est soudée une plaque 29 qui porte les deux axes des roulements 27 ainsi que des patins de frottement 30 en appui contre la face interne de chaque rebord 12. Des lumières 31 prévues dans la plaque 29 renferment un basculeur 32 permettant le réglage par l'extérieur, à l'aide des petits poussoirs 33, du jeu de la poutre intérieure par rapport au mât.FIG. 3 illustrates another embodiment of profiled mast 1 containing a telescopic beam interior 25. There is a profile close to that described above, the same elements carrying the same references. But at the interior telescopic beam 25, is welded, on both sides, a rolling guide 26 in shape of S. The mobile beam with its guides forms a mobile frame which can be raised along the fixed profile on the one hand thanks to two rollers 27 with axis horizontal secured to the mobile beam resting against the reinforcing profile 13, and on the other hand two rollers 40 with horizontal axis integral with the profile 1 .. On this beam 25 and at its base is welded a plate 29 which carries the two axes of the bearings 27 as well as friction pads 30 bearing against the internal face of each edge 12. Lights 31 provided in the plate 29 contain a rocker 32 allowing the adjustment from the outside, using the small pushers 33, the clearance of the inner beam with respect to the mast.

La figure 4 montre la section haute du mât. On remarque que le guide de roulage 26 renferme les galets 15 du chariot porte-équipements 17 décrit en référence aux figures 1 et 2. Le chariot est avantageusement constitué de deux pièces en tôles découpées formant des joues sur lesquels sont soudés les axes des galets 15. Les joues sont assemblées entre elles par un profil 36 du type support d'outil, en position supérieure. D'autres patins de réglage 34 sont visibles entre la poutre 25 et le profilé de renforcement 13.Figure 4 shows the upper section of the mast. We note that the rolling guide 26 contains the rollers 15 of the equipment carriage 17 described with reference to Figures 1 and 2. The carriage is advantageously made up of two pieces of cut sheet metal forming cheeks on which are welded the axes of the rollers 15. The cheeks are joined together by a profile 36 of the type tool holder, in upper position. Other skates 34 are visible between the beam 25 and the reinforcement profile 13.

En se référant également à la figure 5, on voit que la chape 21 de la tête de vérin est fixée à la partie haute de la poutre mobile 25. Le chariot 17 roule dans les coulisses 26 de la charpente mobile, tiré verticalement par la sangle 35 dont le brin opposé est accroché par un support d'attache 20 à la base 24 du vérin c'est-à-dire à la base de la partie fixe du mât 1. On voit que l'extrémité supérieure de la tige mobile 22 du vérin agit sur une chape 21 portant la poulie 19. La levée de la tige 22 entraíne par conséquent la poutre mobile 25 qui lui est attachée, mais aussi le chariot 17 avec une vitesse de déplacement deux fois supérieure à celle de la poutre mobile 25 grâce au mouflage réalisé par l'ensemble poulie 19 et sangle 35, et cet ensemble télescopique autorise donc une levée beaucoup plus importante du chariot porte-équipements, par rapport au système décrit en référence aux figures 1 et 2.Referring also to FIG. 5, it can be seen that the yoke 21 of the jack head is fixed to the part height of the mobile beam 25. The carriage 17 rolls in the slides 26 of the mobile frame, pulled vertically by strap 35, the opposite strand of which is hooked by a attachment support 20 to the base 24 of the jack, that is to say the base of the fixed part of the mast 1. We see that the upper end of the movable rod 22 of the jack acts on a yoke 21 carrying the pulley 19. The lifting of the rod 22 therefore drives the movable beam 25 which is attached, but also the carriage 17 with a speed of displacement twice that of the beam mobile 25 thanks to the haulage produced by the pulley assembly 19 and strap 35, and this telescopic assembly allows therefore a much greater lifting of the equipment carriage, compared to the system described with reference in Figures 1 and 2.

La structure du mât selon les exemples de réalisation précédemment décrits, intégrant un caisson creux se développant verticalement du côté arrière du chariot, lui confère une rigidité au moins équivalente à celle des deux poutres verticales de type classique. En outre le mât étant ainsi fermé à la partie arrière, c'est-à-dire du côté où se tient l'utilisateur, ce dernier ne peut intempestivement atteindre les mécanismes mobiles de levage, protégés par la coque que constitue le mât profilé, ce qui est un réel progrès sur le plan de la sécurité, et évite d'ajouter des capots ou écrans de protection. Enfin ce mât unique donne une esthétique nouvelle au chariot et pour l'utilisateur, augmente son champ de vision sur les produits transportés, et les zones de circulation et de stockage.The structure of the mast according to the examples of realization previously described, integrating a box hollow developing vertically from the rear side of the carriage, gives it a rigidity at least equivalent to that of the two vertical beams of the conventional type. In besides the mast thus being closed at the rear part, that is to say on the side where the user stands, the user does not may inadvertently reach the mobile mechanisms of lifting, protected by the hull which constitutes the mast streamlined, which is real progress in terms of safety, and avoid adding hoods or screens protection. Finally this unique mast gives an aesthetic new to the cart and for the user, increases its field of vision on the products transported, and the zones circulation and storage.

Claims (5)

  1. A lifting mast for handling apparatus of the stacking truck type, consisting of a bent sheet metal section (1) provided with a vertical opening directed towards the front of the truck on the same side as the load being transported and of a reinforcing section (13) fixed to the section and which with it delimits a hollow box section on the rear side of the mast, the interior faces of the section acting as runway tracks for rollers of horizontal axes (27) carrying at least one mechanism that can move inside the mast, characterized in that the outer section (1) is U-shaped, the V-shaped base of which U constitutes a vertical edge (10) on the rear side of the truck and in that the moving mechanism is a framework consisting of an inner telescopic beam (25) associated with two runway guides (26) equipped with two running rollers (27) bearing against the reinforcing section (13) and running over two rollers (40) secured to the section (1).
  2. A lifting mast according to claim 1, characterized in that the beam (25) carries an adjusting plate (29) associated with friction pads (30) bearing against the internal face of the outer section (1).
  3. A lifting mast according to claims 1 and 2, characterized in that the plate (29) supports a rocking lever (32) for adjusting, from the outside, the clearance between the inner beam (25) and the mast.
  4. A lifting mast according to claim 1, characterized in that the runway guide (26) contains the rollers (15) of an equipment-carrying carriage (7).
  5. A lifting mast according to claim 1, characterized in that adjusting pads (34) are provided between the beam (25) and the reinforcing section (13).
EP19990400495 1998-02-27 1999-03-01 Lifting mast for handling apparatus such as a stacker truck Expired - Lifetime EP0939055B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9802411 1998-02-27
FR9802411A FR2775475B1 (en) 1998-02-27 1998-02-27 LIFTING MAT FOR GENDER TROLLEY TYPE HANDLING APPARATUS

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EP0939055A1 EP0939055A1 (en) 1999-09-01
EP0939055B1 true EP0939055B1 (en) 2002-10-30

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EP19990400495 Expired - Lifetime EP0939055B1 (en) 1998-02-27 1999-03-01 Lifting mast for handling apparatus such as a stacker truck

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EP (1) EP0939055B1 (en)
DE (1) DE69903677T2 (en)
ES (1) ES2187124T3 (en)
FR (1) FR2775475B1 (en)

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WO2006059940A1 (en) * 2004-11-06 2006-06-08 Bt Industries Truck mast
DE102013101535B4 (en) * 2013-02-15 2016-01-28 Deutsches Zentrum für Luft- und Raumfahrt e.V. mast

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Publication number Priority date Publication date Assignee Title
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US3485323A (en) * 1967-09-06 1969-12-23 Eaton Yale & Towne Lift truck mast and ram assembly
US4458785A (en) * 1982-10-25 1984-07-10 Bushnell Jr Sherman W Lift
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DE29514676U1 (en) * 1995-09-13 1997-01-30 Jungheinrich Ag Forklift

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WO2006059940A1 (en) * 2004-11-06 2006-06-08 Bt Industries Truck mast
DE102013101535B4 (en) * 2013-02-15 2016-01-28 Deutsches Zentrum für Luft- und Raumfahrt e.V. mast

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DE69903677T2 (en) 2003-06-12
FR2775475B1 (en) 2000-04-21
DE69903677D1 (en) 2002-12-05
EP0939055A1 (en) 1999-09-01
FR2775475A1 (en) 1999-09-03
ES2187124T3 (en) 2003-05-16

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