FR2648775A1 - Trajectory guidance device, particularly for handling trolleys - Google Patents

Trajectory guidance device, particularly for handling trolleys Download PDF

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Publication number
FR2648775A1
FR2648775A1 FR8908745A FR8908745A FR2648775A1 FR 2648775 A1 FR2648775 A1 FR 2648775A1 FR 8908745 A FR8908745 A FR 8908745A FR 8908745 A FR8908745 A FR 8908745A FR 2648775 A1 FR2648775 A1 FR 2648775A1
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Prior art keywords
carriage
wheel
fork
drift
ground
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FR8908745A
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French (fr)
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Priority to FR8908745A priority Critical patent/FR2648775A1/en
Publication of FR2648775A1 publication Critical patent/FR2648775A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/14Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys
    • B62B3/1492Wheel arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2301/00Wheel arrangements; Steering; Stability; Wheel suspension
    • B62B2301/08Wheel arrangements; Steering; Stability; Wheel suspension comprising additional wheels to increase stability

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

Abstract

The invention relates to a trajectory guidance device for handling trolleys. The device is characterised in that it consists of a wheel holder 20 fixed to the bottom part 13a of the basket 13 or the loading platform of a trolley 10, preferably removably, this wheel holder 20 being organised so that the anti-drift wheel 23 is located, in the phase of driving the trolley, preferably vertically in line with the centre of gravity of the trolley. The invention finds a main application in so-called supermarket (hypermarket) trolleys.

Description

L'invention concerne un dispositif de guidage de trajectoire notamment pour chariots de manutention en particulier, parce que c'est dans ce cas que son application semble présenter le plus d'intéret, mais non exclusivement, les chariots pour le transport d'objets ou de denrées tels que ceux mis à la disposition de la clientèle dans les grandes surfaces, les gares, les aéroports.The invention relates to a path guidance device in particular for handling carts in particular, because it is in this case that its application seems to be of most interest, but not exclusively, carts for transporting objects or commodities such as those made available to customers in supermarkets, stations, airports.

I1 existe différents types de chariots "emboitables" que les usagers trouvent dans des stations à chariots destinés à transporter les emplettes entre un point de vente, une sortie de bagages ou autre et le plus souvent un point de stationnement d'un véhicule éloigné du premier. There are different types of "nestable" trolleys that users find in trolley stations intended to transport shopping between a point of sale, a baggage outlet or other and most often a parking point for a vehicle far from the first .

On trouve notamment deux principaux type de chariots soit à quatre roues multidirectionnelles soit à quatre roues dont deux, le plus souvent arrière orientables en tous sens.There are in particular two main types of trolleys, either with four multidirectional wheels or with four wheels, two of which, most often rear, which can be rotated in all directions.

Quelque soit le mode de réalisation proposé ces chariots connus présentent un inconvénient commun à savoir, en particulier lorsqu'ils sont chargés, de dériver par rapport à la trajectoire que souhaite leur faire prendre les usagers lorsqu'ils les conduisent à l'aide' de leur barre de saisie manuelle. Ces difficultés se rencontrent surtout dans les trajectoires souhaitées rectilignes, mais aussi dans les trajectoires courbes. Cette dérive s'accroit de façon importante et incontrôlable lorsque l'on conduit ce genre de chariot sur un sol incliné et que la pente fait un angle par rapport à l'axe longitudinal du chariot.Whatever the embodiment proposed, these known carriages have a common drawback, namely, in particular when they are loaded, to drift relative to the trajectory that the users wish them to take when they are driving them using their manual entry bar. These difficulties are encountered especially in the rectilinear desired trajectories, but also in the curved trajectories. This drift increases significantly and uncontrollably when driving this kind of trolley on inclined ground and the slope makes an angle relative to the longitudinal axis of the trolley.

On constate encore une quasi impossibilité à faire exécuter sur place un demitour, ou encore une prise de courbe à très faible rayon de braquage.There is still a near impossibility of having a half-turn performed on site, or even a curve taking with a very small turning radius.

On ressent donc vivement, pour le confort et la sécurité des usagers un chariot perfectionné qui élimine les phénomènes de dérive précités et qui soit d'une maniabilité améliorée.There is therefore a strong feeling, for the comfort and safety of users, of an improved trolley which eliminates the abovementioned drift phenomena and which is of improved maneuverability.

L'invention concerne à cet effet un dispositif de guidage de trajectoire, notamment pour chariots de manutention à panier, du type emboitables dans les stations, à quatre roues, dont au moins deux sont auto-orientables en tous sens, dispositif caractérisé en ce qu'il est constitué d'un porte roue fixé à la partie de fond du panier ou de la plate forme de charge d'un chariot, de préférence de façon amovible, ce porte roue étant organisé de manière à ce que la roue antidérive soit située, en phase de conduite du chariot, de préférence a l'aplomb du centre de gravité du chariot, au voisinage du centre du polygone de sustentation, de manière à reposer sur le sol, de préférence par appui élastique.To this end, the invention relates to a device for guiding the trajectory, in particular for shopping trolleys with basket, of the type nestable in stations, with four wheels, at least two of which are self-orientable in all directions, device characterized in that '' it consists of a wheel holder fixed to the bottom part of the basket or the load platform of a trolley, preferably removably, this wheel holder being organized so that the anti-slip wheel is located , in the driving phase of the carriage, preferably perpendicular to the center of gravity of the carriage, in the vicinity of the center of the support polygon, so as to rest on the ground, preferably by elastic support.

Suivant une disposition le porte roue se présente sous la forme générale d'une fourche pivotante dans un plan vertical passant par l'axe longitudinal du chariot de manière à pouvoir être déplacée entre deux positions extrêmes, l'une d'appui au sol pour la conduite, L'autre éloignée du sol en position de stationnement lorsque les chariots sont & l'état emboité.According to one arrangement, the wheel carrier is in the general form of a pivoting fork in a vertical plane passing through the longitudinal axis of the carriage so that it can be moved between two extreme positions, one of which rests on the ground for the driving, the other away from the ground in the parking position when the carriages are in the nested state.

Suivant une autre disposition la roue anti-dérive, en position de conduite, repose sur le sol, son plan de symétrie radial côincidant avec le plan vertical passant par l'axe longitudinal du chariot.According to another arrangement, the anti-drift wheel, in the driving position, rests on the ground, its plane of radial symmetry coinciding with the vertical plane passing through the longitudinal axis of the carriage.

D'autres caractéristiques et avantages apparaitront encore à la lecture de la description détaillée qui suit d'un exemple de dispositif anti-dérive, donné ici k titre d'exemple et représenté sur l'unique figure jointe.Other characteristics and advantages will become apparent on reading the following detailed description of an example of an anti-drift device, given here by way of example and shown in the single figure attached.

Dans le dessin joint on a montré, en perspective, vue de dessous avec parties arrachées, un chariot équipé du dispositif.In the accompanying drawing there is shown, in perspective, seen from below with parts torn off, a trolley equipped with the device.

Dans le mode de réalisation représenté on a désigné par la référence générale 10 un chariot de manutention en soit connu dont les quatre roues 11 qui équipent le chassies 12 sont à orientation libre en tous sens.In the embodiment shown, the general reference 10 has designated a handling trolley known as one, the four wheels 11 of which are fitted to the trenches 12 are in free orientation in all directions.

Le chariot est équipé d'un panier de charge 13 et d'une barre de conduite 14.The truck is equipped with a load basket 13 and a pipe bar 14.

Le dispositif de guidage de trajectoire équipant ce chariot est constitué d'un porte roue désigné par la référence générale 20. Ce porte roue est fixé à la partie de fond 13a du panier 13 du chariot par l'intermédiaire d'une platine support 21 constituée ici de deux flasques fixées de façon amovible au fond du panier.The path guidance device fitted to this carriage consists of a wheel carrier designated by the general reference 20. This wheel carrier is fixed to the bottom portion 13a of the basket 13 of the carriage by means of a support plate 21 constituted here two flanges removably attached to the bottom of the basket.

Le porte roue 20 comporte une fourche 22 porte roue 23 et dont l'architecture est organisée pour que la roue anti-dérive soit située, en phase- de conduite au chariot 10 à l'aplomb du centre de gravité du chariot, de préférence au centre du polygone de sustentation, de manière à ce qu'elle repose sur le sol de préférence à l'aide d'un appui élastique qui sera décrit plus loin.The wheel carrier 20 comprises a fork 22 wheel carrier 23 and the architecture of which is organized so that the anti-drift wheel is located, in the phase of driving the carriage 10 directly above the center of gravity of the carriage, preferably at center of the support polygon, so that it rests on the ground preferably using an elastic support which will be described later.

La fourche 22 porte roue est pivotante dans un plan vertical passant par l'axe longitudinal du chariot de manière å pouvoir etre déplacée entre deux positions extremes, l'une d'appui au sol comme représenté au dessin l'autre éloignée du sol pour le stationnement.The fork 22 carries the wheel is pivotable in a vertical plane passing through the longitudinal axis of the carriage so as to be able to be moved between two extreme positions, one bearing on the ground as shown in the drawing the other remote from the ground for the parking.

La fourche comporte en conséquence un point de pivotement 24 dans la platine qui comporte des glissières 25 à l'intérieur desquelles peuvent se déplacer verticalement les points de pivotement de la fourche 22. Les points pivots 24 sont soumis à l'action d'un moyen d'appui élastique 26 telle q'une lame ressort.The fork consequently has a pivot point 24 in the plate which has slides 25 inside which the pivot points of the fork 22 can move vertically. The pivot points 24 are subjected to the action of a means elastic support 26 such as a leaf spring.

On comprend que par cette disposition la roue anti-dérive 23 s'appuie sur le sol avec une force d'appui constante permettant de conserver en toute occasion le contact avec le sol quelles que soient les imperfections de profil.It is understood that by this arrangement the anti-drift wheel 23 rests on the ground with a constant bearing force making it possible to maintain contact with the ground on all occasions whatever the profile imperfections.

Il est à noter que la roue 23 anti-dérive à son plan symétrique radial coïncidant avec le plan vertical passant par l'axe longitudinal du chariot. La roue 23 ainsi disposée interdit les phénomènes de dérive incontrblés notamment sur les sols inclinés faisant angle avec l'axe longitudinal du chariot.It should be noted that the anti-drift wheel 23 has its symmetrical radial plane coinciding with the vertical plane passing through the longitudinal axis of the carriage. The wheel 23 thus arranged prohibits uncontrolled drift phenomena, in particular on inclined floors making an angle with the longitudinal axis of the carriage.

Suivant une autre disposition la fourche 22 porte roue est reliée au châssis 12 ou au fond 13a du châssis par l'intemédiaire d'un lien souple 27 de manière à limiter la course de cette fourche au delà du plan d'appui au sol des roues du chariot.According to another arrangement, the fork 22 carrying the wheel is connected to the chassis 12 or to the bottom 13a of the chassis by means of a flexible link 27 so as to limit the travel of this fork beyond the ground support plane of the wheels. of the carriage.

La fourche 22 porte roue est déplaçable vers le haut de l'arrière vers l'avant du chariot 10, de manière à ce que la traverse avant 15 d'un chariot puisse entrer en contact avec a fourche porte roue d'un chariot précédent en position d'attente sur une station et soulève la dite fourche porte roue pour permettre un emboitement complet de deux chariots se suivant et ce dans un encombrement d'emboitement identique à celui de chariots non équipés du dispositif.The fork 22 carries the wheel is movable upwards from the rear towards the front of the carriage 10, so that the front cross member 15 of a carriage can come into contact with the wheel carrier fork of a preceding carriage in standby position on a station and raises the said wheel carrier fork to allow complete interlocking of two following carriages and this in an interlocking space identical to that of carriages not equipped with the device.

On pourra prévoir d'autres variantes de réalisation sans sortir du cadre de l'invention, ainsi on pourra prévoir d'autres moyens d'appui élastique pour maintenir le contact de la roue anti-dérive avec le sol.We can provide other alternative embodiments without departing from the scope of the invention, so we can provide other elastic support means to maintain contact of the anti-drift wheel with the ground.

De la meme maniere on pourra prévoir un organe amortisseur complémentaire entre la roue anti-dérive et le porte roue.In the same way, it is possible to provide a complementary damping member between the anti-drift wheel and the wheel carrier.

La roue anti-dérive joue pleinement son rôle, en particulier lorsque le chariot est chargé et qu'on le conduit sur une trajectoire choisie quelconque. The anti-drift wheel plays its role fully, in particular when the carriage is loaded and when it is driven on any chosen path.

Claims (7)

REVENDICATIONS 1) Dispositif de guidage de trajectoire, notamment pour chariots de manutention1) Path guidance device, in particular for industrial trucks a panier, du type emboitables dans les stations, à quatre roues, dont au moins with basket, of the type nestable in stations, with four wheels, of which at least deux sont auto-orientables en tous sens, dispositif caractérisé en ce qu'il est two are self-orientating in all directions, device characterized in that it is constitué d'un porte roue (20) fixé à la partie de fond (13a) du panier (13) ou consisting of a wheel carrier (20) fixed to the bottom part (13a) of the basket (13) or de la plate forme de charge d'un chariot (10), de préférence de façon of the load platform of a carriage (10), preferably so amovible, ce porte roue (20) étant organisé de manière à ce que la roue anti removable, this wheel holder (20) being organized so that the anti-wheel dérive (23) soit située, en phase de conduite du chariot, de préférence à drift (23) is located, while driving the truck, preferably l'aplomb du centre de gravité du chariot, au voisinage du centre du polygone perpendicular to the center of gravity of the carriage, near the center of the polygon de sustentation, de manière à reposer sur le sol, de préférence par appui of lift, so as to rest on the ground, preferably by support élastique (26). elastic (26). 2) Dispositif de guidage de trajectoire selon la revendication 1, caractérisé en2) trajectory guidance device according to claim 1, characterized in ce que le porte roue (20) se présente sous la forme générale d'une fourche that the wheel carrier (20) is in the general form of a fork pivotante (22) dans un plan vertical passant par l'axe longitudinal du chariot pivoting (22) in a vertical plane passing through the longitudinal axis of the carriage de manière à pouvoir être déplacée entre deux positions extrêmes, l'une so that it can be moved between two extreme positions, one d'appui au sol pour la conduite, l'autre éloignée du sol en position de support on the ground for driving, the other remote from the ground in position stationnement lorsque les chariots sont à l'état emboité. parking when the carriages are in the nested state. 3) Dispositif de guidage, selon les revendications 1 et 2, caractérisé en ce que3) Guide device according to claims 1 and 2, characterized in that la roue anti-dérive (23), en position de conduite, repose sur le sol, son plan the anti-drift wheel (23), in the driving position, rests on the ground, its plane de symétrie radial coïncidant avec le plan vertical passant par l'axe of radial symmetry coinciding with the vertical plane passing through the axis longitudinal du chariot (10). longitudinal of the carriage (10). 4) Dispositif selon l'une quelconque des revendications I à 3, caractérisé en ce4) Device according to any one of claims I to 3, characterized in that que le point de pivotement (24) de la fourche (22) sur la platine porteuse (21) that the pivot point (24) of the fork (22) on the carrier plate (21) est déplaçable dans des lumières de guidage (25) à l'encontre d'un moyen is movable in guide slots (25) against a means d'appui élastique (26) de sorte que la dite roue anti-dérive s'appuie au sol elastic support (26) so that said anti-drift wheel rests on the ground avec une force d'appui constante with constant downforce 5) Dispositif de guidage selon l'une quelconque des revendications 1 à 4,5) guiding device according to any one of claims 1 to 4, caractérisé en ce que la fourche (22) porte roue anti-dérive est reliée au characterized in that the fork (22) anti-drift wheel carrier is connected to the châssis du chariot par un moyen de retenue (27) de préférence un lien souple chassis of the carriage by a retaining means (27) preferably a flexible link de manière à limiter la course de la dite fourche au delà du plan d'appui au so as to limit the travel of said fork beyond the support plane at sol de la roue. wheel floor. 6) Dispositif de guidage slon l'une quelconque des revendications 1 à 5,6) guiding device according to any one of claims 1 to 5, caractérisé en ce que la fourche porte roue (22) anti-dérive est déplaçable characterized in that the anti-drift wheel carrier fork (22) is movable pour le relevage de l'arrière vers l'avant du chariot, de manière à ce que la for lifting from the rear to the front of the carriage, so that the traverse avant (15) d'un chariot entre au contact de la fourche porte roue front cross member (15) of a carriage comes into contact with the wheel carrier fork (22) d'un chariot précédent lors de la mise en place en station, et soulève la (22) of a previous carriage during installation in the station, and raises the dite fourche (22) porte roue pour permettre un emboitement complet identique said fork (22) wheel carrier to allow identical full fitting à l'emboitemmeent de chariots non équipés. the fitting of unequipped carts. 7) Chariot de manutention caractérisé par un dispositif anti-dérive (20) conforme7) Trolley characterized by an anti-drift device (20) compliant à l'une quelconque des revendications 1 à 6.  to any of claims 1 to 6.
FR8908745A 1989-06-27 1989-06-27 Trajectory guidance device, particularly for handling trolleys Pending FR2648775A1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536389A1 (en) * 1991-04-29 1993-04-14 American Tourister, Inc. Luggage with pull handle
FR2694915A1 (en) * 1992-08-19 1994-02-25 Maloeuvre Robert Improved guidance system for self service baggage trolley - comprises wheel carrying fork connected to brake formed by pivoting fork which rests on wheel periphery
WO1996033900A1 (en) * 1995-04-28 1996-10-31 Work Systems Technology Pty. Ltd. Control wheel assembly for trolleys
AU699108B2 (en) * 1995-04-28 1998-11-19 Work Systems Technology Pty Ltd Control wheel assembly for trolleys
WO2002081286A1 (en) * 2001-04-05 2002-10-17 Brian John Higgins Trolley wheel assembly
AU2002242484B2 (en) * 2001-04-05 2007-11-08 Brian John Higgins Trolley wheel assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH275658A (en) * 1950-04-03 1951-05-31 Ag M Schaerer Transport trolleys, in particular for food.
US4096920A (en) * 1976-12-30 1978-06-27 Bennington Heyn Powered shopping cart and trailer
DE3239040A1 (en) * 1982-10-22 1984-04-26 Peter Ing.(grad.) 7500 Karlsruhe Fuchs Method and device for returning shopping trolleys, luggage trolleys and similar devices from a traffic surface to a storage point
FR2606765A1 (en) * 1986-11-13 1988-05-20 Loc Manutention Support-distributing mechanism for handling- and lifting-trucks, particularly pallet trucks and stackers
GB2200083A (en) * 1987-01-20 1988-07-27 Jonathan Mark Parsons Steerable trolley
EP0281721A1 (en) * 1987-03-09 1988-09-14 Mtd-Produkter I Smaland Ab Wheel assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH275658A (en) * 1950-04-03 1951-05-31 Ag M Schaerer Transport trolleys, in particular for food.
US4096920A (en) * 1976-12-30 1978-06-27 Bennington Heyn Powered shopping cart and trailer
DE3239040A1 (en) * 1982-10-22 1984-04-26 Peter Ing.(grad.) 7500 Karlsruhe Fuchs Method and device for returning shopping trolleys, luggage trolleys and similar devices from a traffic surface to a storage point
FR2606765A1 (en) * 1986-11-13 1988-05-20 Loc Manutention Support-distributing mechanism for handling- and lifting-trucks, particularly pallet trucks and stackers
GB2200083A (en) * 1987-01-20 1988-07-27 Jonathan Mark Parsons Steerable trolley
EP0281721A1 (en) * 1987-03-09 1988-09-14 Mtd-Produkter I Smaland Ab Wheel assembly

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536389A1 (en) * 1991-04-29 1993-04-14 American Tourister, Inc. Luggage with pull handle
EP0536389A4 (en) * 1991-04-29 1993-06-16 American Tourister, Inc. Luggage with pull handle
FR2694915A1 (en) * 1992-08-19 1994-02-25 Maloeuvre Robert Improved guidance system for self service baggage trolley - comprises wheel carrying fork connected to brake formed by pivoting fork which rests on wheel periphery
WO1996033900A1 (en) * 1995-04-28 1996-10-31 Work Systems Technology Pty. Ltd. Control wheel assembly for trolleys
AU699108B2 (en) * 1995-04-28 1998-11-19 Work Systems Technology Pty Ltd Control wheel assembly for trolleys
US6331009B1 (en) 1995-04-28 2001-12-18 Work Systems Technology Pty Ltd. Control wheel assembly for trolleys
WO2002081286A1 (en) * 2001-04-05 2002-10-17 Brian John Higgins Trolley wheel assembly
EP1385732A1 (en) * 2001-04-05 2004-02-04 Brian John Higgins Trolley wheel assembly
EP1385732A4 (en) * 2001-04-05 2007-10-31 Brian John Higgins Trolley wheel assembly
AU2002242484B2 (en) * 2001-04-05 2007-11-08 Brian John Higgins Trolley wheel assembly
US7303198B2 (en) 2001-04-05 2007-12-04 Brian John Higgins Trolley wheel assembly

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