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FR3125514A1 - MOTORIZED TROLLEY EQUIPPED WITH TURRETS ABLE TO MOVE AT A RIGHT ANGLE WITHOUT DRIFTING - Google Patents

MOTORIZED TROLLEY EQUIPPED WITH TURRETS ABLE TO MOVE AT A RIGHT ANGLE WITHOUT DRIFTING Download PDF

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Publication number
FR3125514A1
FR3125514A1 FR2107869A FR2107869A FR3125514A1 FR 3125514 A1 FR3125514 A1 FR 3125514A1 FR 2107869 A FR2107869 A FR 2107869A FR 2107869 A FR2107869 A FR 2107869A FR 3125514 A1 FR3125514 A1 FR 3125514A1
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France
Prior art keywords
wheel
driving
drive
pinion
pivoting
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.)
Pending
Application number
FR2107869A
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French (fr)
Inventor
Pierre ROELS
Romain Moulin
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Exotec SAS
Original Assignee
Exotec SAS
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 Exotec SAS filed Critical Exotec SAS
Priority to FR2107869A priority Critical patent/FR3125514A1/en
Publication of FR3125514A1 publication Critical patent/FR3125514A1/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/30Arrangement or mounting of transmissions in vehicles the ultimate propulsive elements, e.g. ground wheels, being steerable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/30Arrangement or mounting of transmissions in vehicles the ultimate propulsive elements, e.g. ground wheels, being steerable
    • B60K17/303Arrangement or mounting of transmissions in vehicles the ultimate propulsive elements, e.g. ground wheels, being steerable with a gearwheel on the steering knuckle or kingpin axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G1/00Storing articles, individually or in orderly arrangement, in warehouses or magazines
    • B65G1/02Storage devices
    • B65G1/04Storage devices mechanical
    • B65G1/0471Storage devices mechanical with access from beneath
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G1/00Storing articles, individually or in orderly arrangement, in warehouses or magazines
    • B65G1/02Storage devices
    • B65G1/04Storage devices mechanical
    • B65G1/137Storage devices mechanical with arrangements or automatic control means for selecting which articles are to be removed
    • B65G1/1373Storage devices mechanical with arrangements or automatic control means for selecting which articles are to be removed for fulfilling orders in warehouses
    • B65G1/1378Storage devices mechanical with arrangements or automatic control means for selecting which articles are to be removed for fulfilling orders in warehouses the orders being assembled on fixed commissioning areas remote from the storage areas
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0046Disposition of motor in, or adjacent to, traction wheel the motor moving together with the vehicle body, i.e. moving independently from the wheel axle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0069Disposition of motor in, or adjacent to, traction wheel the motor axle being perpendicular to the wheel axle
    • B60K2007/0076Disposition of motor in, or adjacent to, traction wheel the motor axle being perpendicular to the wheel axle the motor axle being horizontal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00Type of vehicle
    • B60Y2200/60Industrial applications, e.g. pipe inspection vehicles
    • B60Y2200/62Conveyors, floor conveyors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Gear Transmission (AREA)

Abstract

L'invention concerne un chariot motorisé (17) comprenant au moins un dispositif de pivotement et d’entrainement d’une roue motrice (29) dudit chariot (17) comprenant : des moyens de pivotement de ladite roue motrice (29) comprenant une roue dentée (42) d’axe vertical (32);des moyens d’entrainement en rotation de ladite roue motrice (29) comprenant un premier pignon (43) et un deuxième pignon (44) coniques agencés l’un par rapport à l’autre de sorte à former un renvoi d’angle. Selon l’invention, ladite roue motrice (29) et ledit deuxième pignon (44) sont montés de part et d’autre de l’axe (32) de ladite roue dentée et le rapport entre le rayon de ladite roue motrice (29) et la distance entre le plan médian de ladite roue motrice (29) et l’axe (32) de ladite roue dentée est sensiblement égal au rapport de réduction entre ledit deuxième pignon (44) et ledit premier pignon (43). Figure à publier : 4The invention relates to a motorized carriage (17) comprising at least one device for pivoting and driving a drive wheel (29) of said carriage (17) comprising: means for pivoting said drive wheel (29) comprising a gear (42) with a vertical axis (32);means for driving said drive wheel (29) in rotation comprising a first pinion (43) and a second conical pinion (44) arranged one with respect to the another so as to form a bevel gear. According to the invention, said drive wheel (29) and said second pinion (44) are mounted on either side of the axis (32) of said toothed wheel and the ratio between the radius of said drive wheel (29) and the distance between the median plane of said driving wheel (29) and the axis (32) of said toothed wheel is substantially equal to the reduction ratio between said second pinion (44) and said first pinion (43). Figure to be published: 4

Description

CHARIOT MOTORISE EQUIPE DE TOURELLES APTE A SE DEPLACER A ANGLE DROIT SANS DERIVEMOTORIZED TROLLEY EQUIPPED WITH TURRETS ABLE TO MOVE AT A RIGHT ANGLE WITHOUT DRIFT

Domaine de l’inventionField of invention

Le domaine de l’invention est celui de la logistique en entrepôt et en particulier de la manutention, du stockage et du transport de pièces ou de produits.The field of the invention is that of warehouse logistics and in particular the handling, storage and transport of parts or products.

Plus précisément, l’invention concerne un chariot motorisé.More specifically, the invention relates to a motorized trolley.

L’invention trouve notamment une application dans l’automatisation de la gestion des flux d’un entrepôt de stockage, par exemple dans un entrepôt de préparation de commandes d’une chaîne logistique, ou dans l’automatisation d’un service de livraison de commandes en point-retrait, communément appelé « drive ».The invention finds application in particular in the automation of the flow management of a storage warehouse, for example in an order preparation warehouse of a logistics chain, or in the automation of a delivery service of point-retract commands, commonly called "drive".

Art antérieurPrior art

Dans la chaîne logistique globale, la gestion des flux et la manipulation des produits au sein d’un entrepôt jouent un rôle déterminant.In the global supply chain, the management of flows and the handling of products within a warehouse play a decisive role.

Traditionnellement, un préparateur de commandes se déplace dans l’entrepôt pour collecter chaque produit d'une commande à son emplacement sur une étagère d'un rayonnage.Traditionally, an order picker travels through the warehouse to collect each product of an order from its location on a rack shelf.

On constate qu'une telle organisation implique que le préparateur parcoure de longs trajets au cours d’une journée de travail, ce qui occasionne fatigue et perte de temps lorsque le trajet n’est pas optimisé.It is noted that such an organization implies that the picker travels long journeys during a working day, which causes fatigue and loss of time when the journey is not optimized.

Un autre inconvénient est que le préparateur doit parfaitement connaître l’agencement de l'entrepôt pour ne pas perdre de temps.Another disadvantage is that the picker must know the layout of the warehouse perfectly so as not to waste time.

Pour limiter la fatigue due aux déplacements, améliorer la gestion de la cueillette (ou « picking » en anglais), réduire le temps de préparation des commandes et son coût, on a imaginé une organisation des entrepôts où les produits sont prélevés dans les rayonnages par des robots puis acheminés par ces mêmes robots jusqu’à des postes de préparation de commandes.To limit fatigue due to travel, improve the management of picking, reduce order preparation time and its cost, we imagined an organization of the warehouses where the products are picked from the shelves by robots then transported by these same robots to order picking stations.

On a notamment proposé de mettre en œuvre des chariots autoguidés qui sont à la fois capables de rouler sur le sol et de grimper le long des rayonnages pour aller prélever des produits stockés dans des bacs. Dans la zone des rayonnages, Ces chariots autoguidés peuvent circuler sur le sol entre les rayonnages et parfois même également sous les rayonnages.In particular, it has been proposed to implement self-guided trolleys which are both capable of rolling on the ground and of climbing along the shelves to pick up products stored in bins. In the shelving area, these self-guided trolleys can travel on the floor between the shelving and sometimes even under the shelving as well.

Afin de pouvoir contrôler les changements de direction du chariot et notamment de permettre à un chariot de décrire une trajectoire à angle droit, on a proposé de monter chacune des roues motrices de ces chariots sur une tourelle de pivotement motorisée indépendante. Ces tourelles connues sont équipées chacune d’un moteur pour faire pivoter une roue motrice autour d’axe vertical et d’un moteur pour entrainer cette roue motrice en rotation, pour contrôler le déplacement des roues à chaque instant.In order to be able to control the changes of direction of the carriage and in particular to allow a carriage to describe a trajectory at right angles, it has been proposed to mount each of the driving wheels of these carriages on an independent motorized pivoting turret. These known turrets are each equipped with a motor to rotate a drive wheel around a vertical axis and a motor to drive this drive wheel in rotation, to control the movement of the wheels at all times.

Un inconvénient de ces techniques connues de tourelles est que lorsque la roue motrice pivote, celle-ci a tendance à tourner, du fait du couplage entre les moyens de pivotement de la roue et les moyens d’entrainement en rotation de cette même roue, ce qui entraine un déplacement du chariot.A drawback of these known turret techniques is that when the drive wheel pivots, the latter tends to rotate, due to the coupling between the pivoting means of the wheel and the rotational drive means of this same wheel, this which causes the carriage to move.

Pour remédier à ce problème on a pensé à compenser la rotation de la roue en agissant sur le moteur d’entrainement en rotation de cette roue.To remedy this problem, we thought of compensating for the rotation of the wheel by acting on the rotation drive motor of this wheel.

Un inconvénient de cette technique connue est qu’elle est complexe à mettre en œuvre et que l’on perd du temps à compenser le déplacement du chariot.A disadvantage of this known technique is that it is complex to implement and that time is lost compensating for the movement of the carriage.

Un autre inconvénient de cette technique connue est que le chariot va tout de même momentanément se déplacer légèrement et peut buter sur des montants des rayonnages, ce qui n’est pas souhaitable.Another disadvantage of this known technique is that the trolley will still move slightly momentarily and may stumble on shelving uprights, which is not desirable.

Objectifs de l’inventionObjectives of the invention

L’invention a donc notamment pour objectif de pallier les inconvénients de l’état de la technique cités ci-dessus.The object of the invention is therefore in particular to overcome the drawbacks of the prior art mentioned above.

Plus précisément, l’invention a pour objectif de fournir une technique de chariot motorisé qui lui permette de changer de direction sans perdre de temps.More specifically, the aim of the invention is to provide a technique for a motorized trolley which allows it to change direction without wasting time.

Un objectif de l’invention est notamment de proposer un chariot motorisé qui puisse décrire une trajectoire à angle droit sans perdre de temps.An object of the invention is in particular to propose a motorized carriage which can describe a trajectory at a right angle without wasting time.

Un autre objectif de l’invention est de fournir une technique de chariot motorisée qui soit simple à mettre en œuvre et peu coûteuse.Another object of the invention is to provide a motorized trolley technique which is simple to implement and inexpensive.

Un objectif de l’invention est également de fournir une technique chariot motorisé qui soit fiable.An object of the invention is also to provide a motorized trolley technique which is reliable.

Ces objectifs, ainsi que d’autres qui apparaîtront par la suite sont atteints à l’aide d’un chariot motorisé comprenant au moins un dispositif de pivotement et d’entrainement d’une roue motrice dudit chariot comprenant :These objectives, as well as others which will appear subsequently, are achieved using a motorized carriage comprising at least one device for pivoting and driving a drive wheel of said carriage comprising:

  • des moyens de pivotement de ladite roue motrice autour d’un axe vertical ;means for pivoting said drive wheel about a vertical axis;
  • des moyens d’entrainement en rotation de ladite roue motrice aptes à être actionnés par un moteur d’entrainement, lesdits moyens d’entrainement comprenant un premier pignon et un deuxième pignon coniques agencés l’un par rapport à l’autre de sorte à former un renvoi d’angle, l’axe dudit premier pignon étant coaxial avec ledit axe vertical de pivotement et l’axe du deuxième pignon étant coaxial avec l’axe de ladite roue motrice.means for driving said driving wheel in rotation, able to be actuated by a driving motor, said driving means comprising a first pinion and a second bevel pinion arranged with respect to each other so as to form a bevel gear, the axis of said first pinion being coaxial with said vertical pivot axis and the axis of the second pinion being coaxial with the axis of said driving wheel.

Selon l’invention, ladite roue motrice et ledit deuxième pignon sont montés de part et d’autre dudit axe vertical de pivotement et le rapport entre le rayon de ladite roue motrice et la distance entre le plan médian de ladite roue motrice et ledit axe vertical de pivotement est sensiblement égal au rapport de réduction entre ledit deuxième pignon et ledit premier pignon.According to the invention, said drive wheel and said second pinion are mounted on either side of said vertical pivot axis and the ratio between the radius of said drive wheel and the distance between the median plane of said drive wheel and said vertical axis pivoting is substantially equal to the reduction ratio between said second pinion and said first pinion.

Dans le cadre de l’invention, on entend par l’expression « sensiblement égal » que le rapport entre le rayon de ladite roue motrice et la distance entre le plan médian de ladite roue motrice et l’axe vertical de pivotement diffère de moins de 2% de la valeur du rapport de réduction entre ledit deuxième pignon et ledit premier pignon.In the context of the invention, the expression "substantially equal" means that the ratio between the radius of said drive wheel and the distance between the median plane of said drive wheel and the vertical pivot axis differs by less than 2% of the value of the reduction ratio between said second pinion and said first pinion.

Les inventeurs ont en effet constaté qu’en choisissant astucieusement les valeurs respectives du rayon de ladite roue motrice, de la distance entre le plan médian de ladite roue motrice et l’axe vertical de pivotement et du rapport de réduction entre ledit deuxième pignon et ledit premier pignon, il était possible d’obtenir que la roue ne tourne pas autour d’elle-même quand on la pivote.The inventors have in fact found that by cleverly choosing the respective values of the radius of said driving wheel, of the distance between the median plane of said driving wheel and the vertical pivot axis and of the reduction ratio between said second pinion and said first pinion, it was possible to obtain that the wheel does not turn around itself when it is pivoted.

Dans un mode de réalisation particulier de l’invention, ledit chariot est un chariot d’un système de préparation de commandes ou de stockage tampon.In a particular embodiment of the invention, said trolley is a trolley of an order picking or buffer storage system.

Dans un mode de réalisation avantageux de l’invention, lesdits moyens de pivotement de ladite roue motrice comprennent une première roue dentée ou une vis sans fin entrainée en rotation par un moteur, ladite première roue dentée ou ladite vis sans fin étant montée de sorte à s’engrener avec une deuxième roue dentée d’axe confondu avec ledit axe vertical.In an advantageous embodiment of the invention, said means for pivoting said drive wheel comprise a first toothed wheel or a worm driven in rotation by a motor, said first toothed wheel or said worm being mounted so as to mesh with a second toothed wheel whose axis coincides with said vertical axis.

Selon un aspect particulier de l’invention, ladite deuxième roue dentée est fixée sur une fourche chevauchant ladite roue motrice présentant deux fourreaux s’étendant de part et d’autre de ladite roue motrice sur lesquels ladite roue motrice est montée pivotante.According to a particular aspect of the invention, said second toothed wheel is fixed on a fork overlapping said drive wheel having two sheaths extending on either side of said drive wheel on which said drive wheel is pivotally mounted.

Selon un mode de réalisation particulier de l’invention, ledit chariot est un chariot à guidage automatique.According to a particular embodiment of the invention, said carriage is an automatically guided carriage.

Dans un mode de réalisation particulier de l’invention, un chariot tel que décrit ci-dessus comprend quatre dispositifs de pivotement et d’entrainement d’une roue motrice et en ce que lesdits moyens d’entrainement en rotation d’une roue motrice de chacun desdits quatre dispositifs de pivotement et d’entrainement sont actionnées par un moteur d’entrainement unique.In a particular embodiment of the invention, a carriage as described above comprises four devices for pivoting and driving a drive wheel and in that said means for driving in rotation a drive wheel of each of said four pivoting and driving devices are actuated by a single driving motor.

Selon un aspect particulier de l’invention, ledit moteur d’entrainement unique est solidarisé auxdits moyens d’entrainement en rotation desdites roues motrices de chacun desdits dispositifs de pivotement et d’entrainement par l’intermédiaire d’une courroie.According to a particular aspect of the invention, said single drive motor is secured to said drive means in rotation of said driving wheels of each of said pivoting and drive devices by means of a belt.

Dans un mode de réalisation particulier de l’invention, lesdits dispositifs de pivotement et d’entrainement sont fixés sensiblement aux quatre coins du châssis dudit chariot.In a particular embodiment of the invention, said pivoting and drive devices are fixed substantially to the four corners of the frame of said carriage.

Liste des figuresList of Figures

D’autres caractéristiques et avantages de l’invention apparaîtront plus clairement à la lecture de la description suivante d’un mode de réalisation de l’invention, donné à titre de simple exemple illustratif et non limitatif, et des dessins annexés parmi lesquels :Other characteristics and advantages of the invention will appear more clearly on reading the following description of an embodiment of the invention, given by way of a simple illustrative and non-limiting example, and the appended drawings, among which:

est une vue schématique, en perspective, d’un entrepôt équipé d’un exemple de mode de réalisation d’un système de préparation de commandes selon l'invention ; is a schematic view, in perspective, of a warehouse equipped with an exemplary embodiment of an order picking system according to the invention;

est une représentation détaillée d’un des chariots présentés en référence à la ; is a detailed representation of one of the trolleys presented with reference to the ;

est une vue de côté de détail d’une tourelle du chariot présenté en référence à la ; is a detail side view of a turret of the carriage shown with reference to the ;

est une vue en coupe d’une tourelle du chariot présenté en référence à la . is a sectional view of a turret of the carriage shown with reference to the .

Claims (8)

Chariot motorisé (17) comprenant au moins un dispositif de pivotement et d’entrainement d’une roue motrice (29) dudit chariot (17) comprenant :
- des moyens de pivotement de ladite roue motrice (29) autour d’un axe vertical (32) ;
- des moyens d’entrainement en rotation de ladite roue motrice (29) aptes à être actionnés par un moteur d’entrainement (210), lesdits moyens d’entrainement comprenant un premier pignon (43) et un deuxième pignon (44) coniques agencés l’un par rapport à l’autre de sorte à former un renvoi d’angle, l’axe dudit premier pignon (43) étant coaxial avec ledit axe vertical de pivotement (32) et l’axe du deuxième pignon (44) étant coaxial avec l’axe (36) de ladite roue motrice (29),
caractérisé en ce que ladite roue motrice (29) et ledit deuxième pignon (44) sont montés de part et d’autre dudit axe vertical de pivotement (32),
et en ce que le rapport entre le rayon de ladite roue motrice (29) et la distance entre le plan médian de ladite roue motrice (29) et ledit axe vertical de pivotement (32) est sensiblement égal au rapport de réduction entre ledit deuxième pignon (44) et ledit premier pignon (43).
Motorized carriage (17) comprising at least one device for pivoting and driving a drive wheel (29) of said carriage (17) comprising:
- Means for pivoting said drive wheel (29) about a vertical axis (32);
- means for driving said drive wheel (29) in rotation capable of being actuated by a drive motor (210), said drive means comprising a first pinion (43) and a second conical pinion (44) arranged relative to each other so as to form a bevel gear, the axis of said first pinion (43) being coaxial with said vertical pivot axis (32) and the axis of the second pinion (44) being coaxial with the axle (36) of said driving wheel (29),
characterized in that said drive wheel (29) and said second pinion (44) are mounted on either side of said vertical pivot axis (32),
and in that the ratio between the radius of said drive wheel (29) and the distance between the median plane of said drive wheel (29) and said vertical pivot axis (32) is substantially equal to the reduction ratio between said second pinion (44) and said first pinion (43).
Chariot selon la revendication 1, caractérisé en ce que ledit chariot (17) est un chariot d’un système de préparation de commandes ou de stockage tampon.Trolley according to Claim 1, characterized in that the said trolley (17) is a trolley of an order picking or buffer storage system. Chariot selon l’une quelconque des revendications 1 et 2, caractérisé en ce que lesdits moyens de pivotement de ladite roue motrice (29) comprennent une première roue dentée ou une vis sans fin entrainée en rotation par un moteur (33), ladite première roue dentée ou ladite vis sans fin étant montée de sorte à s’engrener avec une deuxième roue dentée (42) d’axe confondu avec ledit axe vertical (32).Trolley according to either of Claims 1 and 2, characterized in that the said means for pivoting the said drive wheel (29) comprise a first toothed wheel or a worm driven in rotation by a motor (33), the said first wheel toothed or said endless screw being mounted so as to mesh with a second toothed wheel (42) whose axis coincides with said vertical axis (32). Chariot selon la revendication 3, caractérisé en ce que ladite deuxième roue dentée (42) est fixée sur une fourche (34) chevauchant ladite roue motrice (29) présentant deux fourreaux (35) s’étendant de part et d’autre de ladite roue motrice (29) sur lesquels ladite roue motrice (29) est montée pivotante.Trolley according to Claim 3, characterized in that the said second toothed wheel (42) is fixed to a fork (34) overlapping the said drive wheel (29) having two sheaths (35) extending on either side of the said wheel drive (29) on which said drive wheel (29) is pivotally mounted. Chariot selon l’une quelconque des revendications 1 à 4, caractérisé en ce qu’il est un chariot à guidage automatique.Trolley according to any one of Claims 1 to 4, characterized in that it is an automatically guided trolley. Chariot selon l’une quelconque des revendications 1 à 5, caractérisé en ce qu’il comprend quatre dispositifs de pivotement et d’entrainement d’une roue motrice (29) et en ce que lesdits moyens d’entrainement en rotation d’une roue motrice (29) de chacun desdits quatre dispositifs de pivotement et d’entrainement sont actionnées par un moteur d’entrainement unique (210).Trolley according to any one of Claims 1 to 5, characterized in that it comprises four devices for pivoting and driving a driving wheel (29) and in that the said means for driving a wheel in rotation motor (29) of each of said four pivoting and driving devices are actuated by a single driving motor (210). Chariot selon la revendication 6, caractérisé en ce que ledit moteur d’entrainement unique (210) est solidarisé auxdits moyens d’entrainement en rotation desdites roues motrices de chacun desdits dispositifs de pivotement et d’entrainement par l’intermédiaire d’une courroie (37).Trolley according to Claim 6, characterized in that the said single drive motor (210) is secured to the said means for driving in rotation the said drive wheels of each of the said pivoting and drive devices by means of a belt ( 37). Chariot selon la revendication 6 ou la revendication 7, caractérisé en ce que lesdits dispositifs de pivotement et d’entrainement sont fixés sensiblement aux quatre coins du châssis (23) dudit chariot (17).Trolley according to Claim 6 or Claim 7, characterized in that the said pivoting and driving devices are fixed substantially to the four corners of the frame (23) of the said trolley (17).
FR2107869A 2021-07-21 2021-07-21 MOTORIZED TROLLEY EQUIPPED WITH TURRETS ABLE TO MOVE AT A RIGHT ANGLE WITHOUT DRIFTING Pending FR3125514A1 (en)

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FR2107869A FR3125514A1 (en) 2021-07-21 2021-07-21 MOTORIZED TROLLEY EQUIPPED WITH TURRETS ABLE TO MOVE AT A RIGHT ANGLE WITHOUT DRIFTING

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024013453A1 (en) 2022-07-12 2024-01-18 Exotec Order-picking and boxing method
WO2024013452A1 (en) 2022-07-12 2024-01-18 Exotec System and method for picking orders

Citations (5)

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Publication number Priority date Publication date Assignee Title
GB2116131A (en) * 1982-03-01 1983-09-21 Reza Falamak Drivable steerable platform for lawnmower and the like
JPS62103223A (en) * 1985-10-30 1987-05-13 Casio Comput Co Ltd Steering mechanism of omni-directionally moving car
JPS63149221A (en) * 1986-12-10 1988-06-22 Nippon Yusoki Co Ltd Driving wheel in vehicle movable in every direction
WO2018189110A1 (en) * 2017-04-12 2018-10-18 Exotec Solutions Order-picking system
US20190129371A1 (en) * 2017-10-27 2019-05-02 Berkshire Grey, Inc. Mobile carriers for use in systems and methods for processing objects including mobile matrix carrier systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116131A (en) * 1982-03-01 1983-09-21 Reza Falamak Drivable steerable platform for lawnmower and the like
JPS62103223A (en) * 1985-10-30 1987-05-13 Casio Comput Co Ltd Steering mechanism of omni-directionally moving car
JPS63149221A (en) * 1986-12-10 1988-06-22 Nippon Yusoki Co Ltd Driving wheel in vehicle movable in every direction
WO2018189110A1 (en) * 2017-04-12 2018-10-18 Exotec Solutions Order-picking system
US20190129371A1 (en) * 2017-10-27 2019-05-02 Berkshire Grey, Inc. Mobile carriers for use in systems and methods for processing objects including mobile matrix carrier systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024013453A1 (en) 2022-07-12 2024-01-18 Exotec Order-picking and boxing method
WO2024013452A1 (en) 2022-07-12 2024-01-18 Exotec System and method for picking orders

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