EP1808384A1 - Footboard and vehicle equipped which such a footboard - Google Patents

Footboard and vehicle equipped which such a footboard Download PDF

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Publication number
EP1808384A1
EP1808384A1 EP07290047A EP07290047A EP1808384A1 EP 1808384 A1 EP1808384 A1 EP 1808384A1 EP 07290047 A EP07290047 A EP 07290047A EP 07290047 A EP07290047 A EP 07290047A EP 1808384 A1 EP1808384 A1 EP 1808384A1
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EP
European Patent Office
Prior art keywords
support
zone
supports
movable
fixed support
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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.)
Granted
Application number
EP07290047A
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German (de)
French (fr)
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EP1808384B1 (en
Inventor
Jimmy Gaillard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe dEquipement Manutention et Transports SA
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Societe dEquipement Manutention et Transports SA
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Publication of EP1808384A1 publication Critical patent/EP1808384A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B65F3/001—Vehicles particularly adapted for collecting refuse for segregated refuse collecting, e.g. vehicles with several compartments
    • B65F2003/003—Footboards

Definitions

  • the invention relates, in general, safety equipment related to the exercise of a professional activity.
  • the invention relates to a step device usable on a vehicle and comprising at least one fixed support, a step, and a detector for detecting the occupation of walking by a person.
  • this detection is used, in accordance with the regulations in force, to ensure the safety of the operators present on the step by producing the stop of the automatic cycle. of the body and prohibiting the vehicle from driving more than 30 km / h as well as reversing.
  • the step is made retractable by means of a parallelogram linkage equipped with a hydraulic cylinder.
  • This solution which uses twelve joints, has a disproportionate complexity compared to the desired functionality.
  • the inactive position of the step is used as indicative of the absence of operator.
  • this solution presents the disadvantage of having to raise and lower the walk at each collection point.
  • this operation is inconvenient for the operators, the latter eventually neutralize the means that make it necessary, and perform their work outside any security conditions.
  • a third known device described in the patent document DE 39 18 971 , has electrical switches directly associated with the step or handles or “handrails" for operators, combined with light curtains with optical or ultrasonic sensors, or even sensitive mats sandwiched in the step tray.
  • the detection components are very quickly and very often out of order.
  • the presence of the operator on the step is detected by photocells or similar sensors, having in practice the same disadvantages as the second example mentioned above.
  • the invention therefore aims to overcome all these technical disadvantages while allowing compliance with the safety conditions defined by the regulations in force.
  • the device of the invention is essentially characterized in that it further comprises a mobile bracket at right angles connecting the step to the fixed support and having a substantially horizontal distal section and a substantially vertical proximal section, in that the step is supported by the distal end of the distal section, in that the proximal section shares with the fixed support a mutual articulation zone and a zone of mutual support, the bearing zone being disposed below the articulation zone, in that the proximal section is rotatably mounted on the fixed support, around a tilting axis arranged in the zone d articulation, with an angular displacement of mechanically controlled amplitude, and under the combined effect of a load possibly carried by the step or by the distal section of the movable support and an electric force Antagonist ant tending to raise the distal end of the mobile support and sized to be both not null and overcome by a minimum value charge, and in that the detector is connected to the fixed bracket at right angles connecting the step to the fixed support and having a substantially horizontal distal section and
  • the minimum value of the load is preferably chosen to be equal to a fraction of the average weight of an adult person, for example of the order of 30 kg.
  • the mobile support adopts, under the combined effect of the elastic force and the possible load represented by the presence of these operators, the one or the other of two positions determined in a safe way and easily detectable by electrical, electronic or similar components, guaranteeing the safety of the operators.
  • the step is rotatably mounted on the movable support between an erect inactive position and a substantially horizontal functional position in which it adopts a stable and reversible state.
  • the step may be articulated on the distal end of the distal section by means of a spring joint and beyond the alignment position.
  • This arrangement avoids the operators the inconvenience caused by the known devices in which the walking is always systematically moved between two positions, while allowing them to place the walk in the inactive position if they wish.
  • one of the supports has an oblong slot centered on the tilting axis, that the other support has a lug engaged in the oblong slot, and that the angular displacement of the movable support relative to the fixed support is thus determined by the movement of the pin in the light.
  • the movable support In case of occupation of the step or the distal end of the mobile support by a person, the movable support preferably comes in open stop on the fixed support under the combined effect of the load that represents at least a portion of the weight of this person, and the elastic force, this arrangement to ensure that the operator on the market does not feel any instability resulting from the application of an elastic force opposing its weight.
  • At least one of the fixed and movable supports may advantageously comprise a casing covering the connection area of these supports and prohibiting the insertion of a relative blocking wedge of these supports.
  • the distal section is connected to the lower end of the section.
  • the mobile support constitutes a lever of the second type.
  • distal section is connected to the upper end of the proximal section, and that the movable support is a lever of the first type.
  • the elastic force can be developed by a stack of "Belleville” type spring washers prestressed in compression, this stack being interposed between the supports in the bearing zone.
  • the movable support may comprise a web arranged radially with respect to the tilting axis and facing the stack of washers, to which it retransmits the load possibly carried by the step or by the mobile support.
  • the invention also relates to a dump vehicle, for example for the collection of waste, this vehicle being characterized in that it is equipped with a step device as defined above.
  • the invention relates to a step device intended, in its preferred application, to equip a vehicle for collecting waste.
  • This device comprises, in a manner known per se, a fixed support 1, a step 2, and a detector 3 able to detect the occupation of the step 2 by a person P (FIG. 2).
  • the device of the invention further comprises a mobile support 4 shaped at right angles and connecting the step 2 to the fixed support 1.
  • This mobile support 4 has a section 41 relatively distant from the fixed support 1 and substantially horizontal, and a section 42 relatively close to the fixed support 1 and substantially vertical.
  • the step 2 is articulated on the distal end 410 of the distal section 41, that is to say on the end of this section which is furthest from the fixed support 1, so as to be movable between a functional position substantially horizontal and an inactive standing position.
  • the articulation 5 of the step 2 on the distal end 410 which is for example a joint beyond the alignment position also called “toggle” is equipped with a spring 51 attached to the nose 20 of the step 2 and a bracket 510 of the support 4.
  • the step 2 adopts, in its functional position, a stable state but nevertheless reversible at will by rotation of this step 2 about the axis 50.
  • the proximal section 42 of the mobile support 4 shares with the fixed support 1 a zone of mutual articulation Z1 and a zone of mutual support Z2.
  • the proximal section 42 of the mobile support 4 is rotatably mounted on the fixed support 1, around a tilting axis Y.
  • tilting due to the fact that it has an angular displacement of mechanically controlled amplitude, typically less than 5 degrees and for example of the order of 2 degrees .
  • one of the supports for example the fixed support 1
  • the other support in this case the mobile support 4
  • the tilting of the mobile support 4 around the Y axis relative to the fixed support 1 is subjected to the combined effect of a load possibly carried by the step 2 or the distal section 41, and a force antagonistic elastic tending to raise the distal end 410 of the mobile support 4.
  • the possible load is typically constituted by the weight of a person P occupying, if necessary, the step 2 or the distal section 41 of the mobile support 4, and the elastic force is dimensioned so as to be both non-zero and overcome by a load of minimum value, of the order of 30 kilograms for example.
  • the elastic force must possibly have a high value if it is exerted near this tilting axis.
  • this elastic force is for example developed by a stack 6 of elastic washers of "Belleville” type prestressed in compression, this stack being disposed in the bearing zone Z2 and interposed between the fixed support 1 and the mobile support 4 .
  • the mobile support 4 may for example comprise a web 45 arranged radially with respect to the tilting axis Y and opposite the stack 6 of washers, to which it retransmits, with a multiplicative factor of lever arm, the charge P possibly carried by the step or by this mobile support, that is to say typically the weight or a fraction of the weight of a person P.
  • the detector 3 is connected to the fixed support 1 and disposed in the bearing zone Z2.
  • the "fixed support” is understood here as encompassing any element supporting the mobile support 4 or any integral part of this element, the detector 3 can therefore be attached to the vehicle when the device of the invention is mounted on the latter.
  • the detector 3 which may for example be constituted by a sealed electrical contact or a proximity sensor, is capable of detecting the rotation of the mobile support 4 around the tilting axis Y under the combined effect of the force elastic developed by the stack 6 and the load exerted against this elastic force and constituted by the weight the person P.
  • the elastic force pushes the lug 43 against the upper edge of the oblong slot 10 in the rest position of the device, that is to say in the case of the unoccupied step 2, whereas, in the opposite case illustrated in FIG. 2, the load constituted by the weight of the person P overcomes the effect of the elastic force and pushes the pin 43 towards the lower edge of the oblong slot 10.
  • the mobile support 4 in the event of occupation of the step 2, come into abutment on the fixed support 1 in the support zone Z2 to optimize the comfort and stability of the person P.
  • one and / or the other of the fixed and movable supports 1 and 4 may be provided with a housing 44 covering the connection area of these supports and prohibiting the insertion of a wedge that would be intended to ensure the relative locking of these supports.
  • FIGS. 1 and 2 show an embodiment in which the distal section 41 of the mobile support 4 is connected to the lower end of the proximal section 42.
  • the mobile support 4 constitutes a lever of the second type with respect to the load constituted by the weight of the person P, the resistance applied by the stack 6 of spring washers, and the rotation point constituted by by the tilting axis Y.
  • the invention could nevertheless be implemented by connecting the distal section 41 of the mobile support 4 to the upper end of the proximal section 42, for example at the height of the tilting axis Y.
  • the mobile support 4 would then constitute a lever of the first type vis-à-vis the load constituted by the weight of the person P, the resistance applied by the stack 6 of elastic washers, and the point of rotation constituted by the tilting axis Y.

Abstract

The device has a movable support (4) supporting a stair (2) and mounted tilting, with a mechanically controlled amplitude displacement, on a fixed support (1) around an axis (Y), under the effect of weight of an occupant (P) of the stair and an elastic antagonistic force developed by a Belleville type elastic washer stack (6). A detector is placed in a mutual support zone (Z2) to detect the rotation of the support (4) between two limited angular displacement positions. The stair is rotatably mounted on the support (4) between an inactive dressed position and a horizontal operational position.

Description

L'invention concerne, de façon générale, les équipements de sécurité liés à l'exercice d'une activité professionnelle.The invention relates, in general, safety equipment related to the exercise of a professional activity.

Plus précisément, l'invention concerne un dispositif de marchepied utilisable sur un véhicule et comprenant au moins un support fixe, une marche, et un détecteur propre à détecter l'occupation de la marche par une personne.More specifically, the invention relates to a step device usable on a vehicle and comprising at least one fixed support, a step, and a detector for detecting the occupation of walking by a person.

Dans le cas de son application privilégiée à un véhicule de collecte de déchets équipé d'une benne, cette détection est utilisée, conformément à la réglementation en vigueur, pour assurer la sécurité des opérateurs présents sur le marchepied en produisant l'arrêt du cycle automatique de la benne et en interdisant au véhicule de rouler au-delà de 30 km/h ainsi qu'en marche arrière.In the case of its preferred application to a waste collection vehicle equipped with a skip, this detection is used, in accordance with the regulations in force, to ensure the safety of the operators present on the step by producing the stop of the automatic cycle. of the body and prohibiting the vehicle from driving more than 30 km / h as well as reversing.

De nombreuses solutions ont été développées pour répondre à ce besoin.Many solutions have been developed to meet this need.

Selon un des premiers systèmes connus, décrit dans lé document de brevet EP 0 569 927 , la marche est rendue escamotable au moyen d'un embiellage à parallélogramme muni d'un vérin hydraulique. Cette solution, qui met en oeuvre douze articulations, présente une complexité démesurée par rapport à la fonctionnalité recherchée.According to one of the first known systems, described in the patent document EP 0 569 927 the step is made retractable by means of a parallelogram linkage equipped with a hydraulic cylinder. This solution, which uses twelve joints, has a disproportionate complexity compared to the desired functionality.

Selon un autre dispositif connu, décrit dans le document de brevet DE 41 21 720 , la position inactive de la marche est utilisée comme indicative de l'absence d'opérateur. Bien qu'assez simple, cette solution présente l'inconvénient d'obliger à lever et à baisser la marche à chaque point de collecte. De plus, comme cette opération est gênante pour les opérateurs, ces derniers finissent par neutraliser les moyens qui la rendent nécessaire, et effectuent leur travail en dehors de toute condition de sécurité.According to another known device, described in the patent document DE 41 21 720 , the inactive position of the step is used as indicative of the absence of operator. Although quite simple, this solution presents the disadvantage of having to raise and lower the walk at each collection point. In addition, as this operation is inconvenient for the operators, the latter eventually neutralize the means that make it necessary, and perform their work outside any security conditions.

Un troisième dispositif connu, décrit dans le document de brevet DE 39 18 971 , comporte des interrupteurs électriques associés directement à la marche ou à des poignées ou "mains courantes" pour les opérateurs, combinés à des barrières immatérielles à capteurs optiques ou ultrasonores, voire à des tapis sensibles montés en sandwich dans le plateau de la marche. Or, dans la mesure où les marchepieds sont situés à l'arrière des véhicules, et donc systématiquement exposés à des chocs et à des déformations répétés, les composants de détection sont très rapidement et très souvent hors service.A third known device, described in the patent document DE 39 18 971 , has electrical switches directly associated with the step or handles or "handrails" for operators, combined with light curtains with optical or ultrasonic sensors, or even sensitive mats sandwiched in the step tray. However, insofar as the running boards are located at the rear of the vehicles, and therefore systematically exposed to shocks and repeated deformations, the detection components are very quickly and very often out of order.

Selon un autre exemple, décrit dans le certificat d'utilité DE 200 11 220 , la présence de l'opérateur sur la marche est détectée par des cellules photoélectriques ou capteurs similaires, présentant en pratique les mêmes inconvénients que le deuxième exemple évoqué ci-dessus.According to another example, described in the utility certificate DE 200 11 220 , the presence of the operator on the step is detected by photocells or similar sensors, having in practice the same disadvantages as the second example mentioned above.

En fait, tous les constructeurs ayant mis en place des solutions utilisant des cellules photoélectriques, des capteurs à ultrasons ou des capteurs du même type se sont heurtés aux mêmes problèmes de réglage et de pertinence de l'information recueillie, le capteur s'avérant finalement avoir une portée trop courte ou trop longue, ou se montrant sensible à des paramètres externes non pertinents (gros flocons de neige, feux des autres véhicules en circulation, vêtements de sécurité de plus en plus fluorescents, etc...), ces défauts produisant dans tous ces cas des arrêts intempestifs des matériels en pleine collecte.In fact, all the manufacturers who have implemented solutions using photocells, ultrasonic sensors or similar sensors have encountered the same problems of adjustment and relevance of the information collected, the sensor ultimately proving have too short a reach or too much long, or being sensitive to irrelevant external parameters (large snowflakes, other traffic lights in circulation, increasingly fluorescent safety clothing, etc ...), these defects producing in all these cases untimely shutdowns materials in full collection.

L'invention vise donc à pallier l'ensemble de ces inconvénients techniques tout en permettant le respect des conditions de sécurité définies par la réglementation en vigueur.The invention therefore aims to overcome all these technical disadvantages while allowing compliance with the safety conditions defined by the regulations in force.

A cette fin, le dispositif de l'invention, par ailleurs conforme à la définition générique qu'en donne le préambule ci-dessus, est essentiellement caractérisé en ce qu'il comprend en outre un support mobile en équerre reliant la marche au support fixe et présentant une section distale sensiblement horizontale et une section proximale sensiblement verticale, en ce que la marche est supportée par l'extrémité distale de la section distale, en ce que la section proximale partage avec le support fixe une zone d'articulation mutuelle et une zone d'appui mutuel, la zone d'appui étant disposée en-dessous de la zone d'articulation, en ce que la section proximale est montée à rotation sur le support fixe, autour d'un axe de basculement disposé dans la zone d'articulation, avec un débattement angulaire d'amplitude contrôlée mécaniquement, et sous l'effet conjugué d'une charge éventuellement portée par la marche ou par la section distale du support mobile et d'une force élastique antagoniste tendant à relever l'extrémité distale du support mobile et dimensionnée pour être à la fois non nulle et vaincue par une charge de valeur minimale, et en ce que le détecteur est lié au support fixe et disposé dans la zone d'appui pour détecter la rotation du support mobile, entre deux positions limites du débattement angulaire, sous l'effet conjugué de la charge éventuelle et de la force élastique.To this end, the device of the invention, furthermore in conformity with the generic definition given in the preamble above, is essentially characterized in that it further comprises a mobile bracket at right angles connecting the step to the fixed support and having a substantially horizontal distal section and a substantially vertical proximal section, in that the step is supported by the distal end of the distal section, in that the proximal section shares with the fixed support a mutual articulation zone and a zone of mutual support, the bearing zone being disposed below the articulation zone, in that the proximal section is rotatably mounted on the fixed support, around a tilting axis arranged in the zone d articulation, with an angular displacement of mechanically controlled amplitude, and under the combined effect of a load possibly carried by the step or by the distal section of the movable support and an electric force Antagonist ant tending to raise the distal end of the mobile support and sized to be both not null and overcome by a minimum value charge, and in that the detector is connected to the fixed support and disposed in the support zone to detect the rotation of the mobile support between two limit positions of the angular deflection, under the combined effect the possible load and the elastic force.

La valeur minimale de la charge est de préférence choisie comme étant égale à une fraction du poids moyen d'une personne adulte, et par exemple de l'ordre de 30 kg.The minimum value of the load is preferably chosen to be equal to a fraction of the average weight of an adult person, for example of the order of 30 kg.

Ainsi, selon que la marche ou le support mobile sont ou non occupés par un ou plusieurs opérateurs, le support mobile adopte, sous l'effet conjugué de la force élastique et de l'éventuelle charge représentée par la présence de ces opérateurs, l'une ou l'autre de deux positions déterminées de façon sûre et facilement détectables par des composants électriques, électroniques ou similaires, garantissant la sécurité des opérateurs.Thus, depending on whether the step or the mobile support is occupied by one or more operators, the mobile support adopts, under the combined effect of the elastic force and the possible load represented by the presence of these operators, the one or the other of two positions determined in a safe way and easily detectable by electrical, electronic or similar components, guaranteeing the safety of the operators.

De préférence, la marche est montée à rotation sur le support mobile entre une position inactive dressée et une position fonctionnelle sensiblement horizontale dans laquelle elle adopte un état stable et réversible.Preferably, the step is rotatably mounted on the movable support between an erect inactive position and a substantially horizontal functional position in which it adopts a stable and reversible state.

A cette fin, la marche peut être articulée sur l'extrémité distale de la section distale au moyen d'une articulation à ressort et à dépassement de la position d'alignement.To this end, the step may be articulated on the distal end of the distal section by means of a spring joint and beyond the alignment position.

Cet agencement évite aux opérateurs la gêne qu'occasionnent les dispositifs connus dans lesquels la marche est en permanence systématiquement déplacée entre deux positions, tout en leur permettant de placer la marche en position inactive s'ils le souhaitent.This arrangement avoids the operators the inconvenience caused by the known devices in which the walking is always systematically moved between two positions, while allowing them to place the walk in the inactive position if they wish.

Dans un mode de réalisation simple de l'invention, il est possible de prévoir que l'un des supports présente une lumière oblongue centrée sur l'axe de basculement, que l'autre support présente un ergot engagé dans la lumière oblongue, et que le débattement angulaire du support mobile par rapport au support fixe soit ainsi déterminé par le débattement de l'ergot dans la lumière.In a simple embodiment of the invention, it is possible to provide that one of the supports has an oblong slot centered on the tilting axis, that the other support has a lug engaged in the oblong slot, and that the angular displacement of the movable support relative to the fixed support is thus determined by the movement of the pin in the light.

En cas d'occupation de la marche ou de l'extrémité distale du support mobile par une personne, le support mobile vient de préférence en butée franche sur le support fixe sous l'effet conjugué de la charge que représente une partie au moins du poids de cette personne, et de la force élastique, cet agencement permettant d'assurer que l'opérateur présent sur la marche ne ressente aucune instabilité résultant de l'application d'une force élastique s'opposant à son poids.In case of occupation of the step or the distal end of the mobile support by a person, the movable support preferably comes in open stop on the fixed support under the combined effect of the load that represents at least a portion of the weight of this person, and the elastic force, this arrangement to ensure that the operator on the market does not feel any instability resulting from the application of an elastic force opposing its weight.

L'un au moins des supports fixe et mobile peut avantageusement comporter un carter couvrant la zone de raccordement de ces supports et interdisant l'insertion d'une cale de blocage relatif de ces supports.At least one of the fixed and movable supports may advantageously comprise a casing covering the connection area of these supports and prohibiting the insertion of a relative blocking wedge of these supports.

Selon un mode de réalisation possible de l'invention, qui sera représenté aux figures, la section distale se raccorde à l'extrémité inférieure de la section proximale, et le support mobile constitue un levier du deuxième type.According to a possible embodiment of the invention, which will be shown in the figures, the distal section is connected to the lower end of the section. proximal, and the mobile support constitutes a lever of the second type.

Cependant, il est également possible de prévoir que la section distale se raccorde à l'extrémité supérieure de la section proximale, et que le support mobile constitue un levier du premier type.However, it is also possible to provide that the distal section is connected to the upper end of the proximal section, and that the movable support is a lever of the first type.

La force élastique peut être développée par un empilement de rondelles élastiques de type "Belleville" précontraintes en compression, cet empilement étant interposé entre les supports dans la zone d'appui.The elastic force can be developed by a stack of "Belleville" type spring washers prestressed in compression, this stack being interposed between the supports in the bearing zone.

Dans ce cas, le support mobile peut comprendre un voile disposé radialement par rapport à l'axe de basculement et en regard de l'empilement de rondelles, auquel il retransmet la charge éventuellement portée par la marche ou par le support mobile.In this case, the movable support may comprise a web arranged radially with respect to the tilting axis and facing the stack of washers, to which it retransmits the load possibly carried by the step or by the mobile support.

L'invention concerne également un véhicule à benne, par exemple pour la collecte de déchets, ce véhicule étant caractérisé en ce qu'il est équipé d'un dispositif de marchepied tel que précédemment défini.The invention also relates to a dump vehicle, for example for the collection of waste, this vehicle being characterized in that it is equipped with a step device as defined above.

D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux dessins annexés, dans lesquels :

  • la figure 1 est une vue en élévation et partiellement en coupe d'un dispositif conforme à l'invention, illustré au repos;
  • la figure 2 est une vue en élévation et partiellement en coupe du dispositif illustré à la figure 1, représenté dans l'état qu'il adopte en cas d'occupation de la marche par une personne;
  • la figure 3 est une vue en élévation éclatée des deux supports utilisés dans le dispositif illustré aux figures 1 et 2;
  • la figure 4 est une vue de dessus éclatée des deux supports utilisés dans le dispositif illustré aux figures 1 et 2;
  • la figure 5 est une vue de face du support fixe utilisé dans le dispositif illustré aux figures 1 et 2; et
  • la figure 6 est une vue de face et partiellement en coupe de l'assemblage du support fixe et du support mobile utilisés dans le dispositif illustré aux figures 1 et 2.
Other characteristics and advantages of the invention will emerge clearly from the description which is given hereinafter, by way of indication and in no way limitative, with reference to the appended drawings, in which:
  • Figure 1 is an elevational view and partially in section of a device according to the invention, illustrated at rest;
  • Figure 2 is an elevational view and partially in section of the device shown in Figure 1, shown in the state it adopts in case of occupation of walking by a person;
  • Figure 3 is an exploded elevational view of the two supports used in the device shown in Figures 1 and 2;
  • Figure 4 is an exploded top view of the two supports used in the device shown in Figures 1 and 2;
  • Figure 5 is a front view of the fixed support used in the device shown in Figures 1 and 2; and
  • Figure 6 is a front view and partially in section of the assembly of the fixed support and the movable support used in the device illustrated in Figures 1 and 2.

Comme annoncé précédemment, l'invention concerne un dispositif de marchepied destiné, dans son application privilégiée, à équiper un véhicule de collecte de déchets.As previously announced, the invention relates to a step device intended, in its preferred application, to equip a vehicle for collecting waste.

Ce dispositif comprend, de façon connue en soi, un support fixe 1, une marche 2, et un détecteur 3 propre à détecter l'occupation de la marche 2 par une personne P (figure 2).This device comprises, in a manner known per se, a fixed support 1, a step 2, and a detector 3 able to detect the occupation of the step 2 by a person P (FIG. 2).

Le dispositif de l'invention comprend en outre un support mobile 4 conformé en équerre et reliant la marche 2 au support fixe 1.The device of the invention further comprises a mobile support 4 shaped at right angles and connecting the step 2 to the fixed support 1.

Ce support mobile 4 présente une section 41 relativement distante du support fixe 1 et sensiblement horizontale, et une section 42 relativement proche du support fixe 1 et sensiblement verticale.This mobile support 4 has a section 41 relatively distant from the fixed support 1 and substantially horizontal, and a section 42 relatively close to the fixed support 1 and substantially vertical.

La marche 2 est articulée sur l'extrémité distale 410 de la section distale 41, c'est-à-dire sur l'extrémité de cette section qui est la plus éloignée du support fixe 1, de manière à être mobile entre une position fonctionnelle sensiblement horizontale et une position inactive dressée.The step 2 is articulated on the distal end 410 of the distal section 41, that is to say on the end of this section which is furthest from the fixed support 1, so as to be movable between a functional position substantially horizontal and an inactive standing position.

L'articulation 5 de la marche 2 sur l'extrémité distale 410, qui est par exemple une articulation à dépassement de la position d'alignement encore appelée "genouillère", est équipée d'un ressort 51 accroché au nez 20 de la marche 2 et à une potence 510 du support 4.The articulation 5 of the step 2 on the distal end 410, which is for example a joint beyond the alignment position also called "toggle" is equipped with a spring 51 attached to the nose 20 of the step 2 and a bracket 510 of the support 4.

Dans la position fonctionnelle de la marche, illustrée aux figures 1 et 2, le ressort 51 est moins tendu que lorsque le nez 20 et la potence 510 se trouve dans le plan de l'axe 50 de cette articulation.In the operative position of the step, illustrated in Figures 1 and 2, the spring 51 is less tight than when the nose 20 and the bracket 510 is in the plane of the axis 50 of this joint.

Grâce à ce type de liaison, la marche 2 adopte, dans sa position fonctionnelle, un état stable mais néanmoins réversible à volonté par rotation de cette marche 2 autour de l'axe 50.Thanks to this type of connection, the step 2 adopts, in its functional position, a stable state but nevertheless reversible at will by rotation of this step 2 about the axis 50.

La section proximale 42 du support mobile 4 partage avec le support fixe 1 une zone d'articulation mutuelle Z1 et une zone d'appui mutuel Z2.The proximal section 42 of the mobile support 4 shares with the fixed support 1 a zone of mutual articulation Z1 and a zone of mutual support Z2.

Dans la zone d'articulation Z1, qui surplombe en fonctionnement la zone d'appui Z2, la section proximale 42 du support mobile 4 est montée à rotation sur le support fixe 1, autour d'un axe de basculement Y.In the articulation zone Z1, which overhangs in operation the bearing zone Z2, the proximal section 42 of the mobile support 4 is rotatably mounted on the fixed support 1, around a tilting axis Y.

La rotation du support mobile 4 par rapport au support fixe 1 est conventionnellement désignée "basculement" en raison du fait qu'elle présente un débattement angulaire d'amplitude contrôlée mécaniquement, typiquement inférieure à 5 degrés et par exemple de l'ordre de 2 degrés.The rotation of the mobile support 4 with respect to the fixed support 1 is conventionally designated "tilting" due to the fact that it has an angular displacement of mechanically controlled amplitude, typically less than 5 degrees and for example of the order of 2 degrees .

Pour ce faire, l'un des supports, par exemple le support fixe 1, présente par exemple une lumière oblongue 10 centrée sur l'axe de basculement Y, et l'autre support, en l'occurrence le support mobile 4, présente un ergot 43 engagé à la fois dans le perçage 430 du support mobile et dans la lumière oblongue 10 du support fixe, de sorte que le débattement angulaire du support mobile 4 par rapport au support fixe 1 est déterminé par le débattement de l'ergot 43 dans la lumière 10.To do this, one of the supports, for example the fixed support 1, has for example an oblong slot 10 centered on the tilting axis Y, and the other support, in this case the mobile support 4, has a pin 43 engaged both in the bore 430 of the movable support and in the oblong slot 10 of the fixed support, so that the angular displacement of the mobile support 4 relative to the fixed support 1 is determined by the movement of the pin 43 in the light 10.

En fait, le basculement du support mobile 4 autour de l'axe Y par rapport au support fixe 1 est soumis à l'effet conjugué d'une charge éventuellement portée par la marche 2 ou par la section distale 41, et d'une force élastique antagoniste tendant à relever l'extrémité distale 410 du support mobile 4.In fact, the tilting of the mobile support 4 around the Y axis relative to the fixed support 1 is subjected to the combined effect of a load possibly carried by the step 2 or the distal section 41, and a force antagonistic elastic tending to raise the distal end 410 of the mobile support 4.

La charge éventuelle est typiquement constituée par le poids d'une personne P occupant le cas échéant la marche 2 ou la section distale 41 du support mobile 4, et la force élastique est dimensionnée pour être à la fois non nulle et vaincue par une charge de valeur minimale, de l'ordre de 30 kilogrammes par exemple.The possible load is typically constituted by the weight of a person P occupying, if necessary, the step 2 or the distal section 41 of the mobile support 4, and the elastic force is dimensioned so as to be both non-zero and overcome by a load of minimum value, of the order of 30 kilograms for example.

Compte tenu du fait que la charge et la force élastique exercent, par rapport à l'axe de basculement Y, des couples de rotation respectifs par l'intermédiaire de bras de leviers a priori différents, et compte tenu de l'importance du bras de levier avec lequel s'applique la charge par rapport à l'axe de basculement Y, la force élastique doit éventuellement présenter une valeur élevée si elle est exercée à proximité de cet axe de basculement.In view of the fact that the load and the elastic force exert, relative to the tilting axis Y, respective rotational torques via a priori different lever arms, and taking into account the importance of the arm of lever with which the load is applied relative to the tilting axis Y, the elastic force must possibly have a high value if it is exerted near this tilting axis.

Dans ce cas, cette force élastique est par exemple développée par un empilement 6 de rondelles élastiques de type "Belleville" précontraintes en compression, cet empilement étant disposé dans la zone d'appui Z2 et interposé entre le support fixe 1 et le support mobile 4.In this case, this elastic force is for example developed by a stack 6 of elastic washers of "Belleville" type prestressed in compression, this stack being disposed in the bearing zone Z2 and interposed between the fixed support 1 and the mobile support 4 .

Plus précisément, le support mobile 4 peut par exemple comprendre un voile 45 disposé radialement par rapport à l'axe de basculement Y et en regard de l'empilement 6 de rondelles, auquel il retransmet, avec un facteur multiplicatif de bras de levier, la charge P éventuellement portée par la marche ou par ce support mobile, c'est-à-dire typiquement le poids ou une fraction du poids d'une personne P.More specifically, the mobile support 4 may for example comprise a web 45 arranged radially with respect to the tilting axis Y and opposite the stack 6 of washers, to which it retransmits, with a multiplicative factor of lever arm, the charge P possibly carried by the step or by this mobile support, that is to say typically the weight or a fraction of the weight of a person P.

Le détecteur 3 est lié au support fixe 1 et disposé dans la zone d'appui Z2.The detector 3 is connected to the fixed support 1 and disposed in the bearing zone Z2.

Bien entendu, le "support fixe" est ici compris comme englobant tout élément supportant le support mobile 4 ou toute pièce solidaire de cet élément, le détecteur 3 pouvant donc être fixé au véhicule lorsque le dispositif de l'invention est monté sur ce dernier.Of course, the "fixed support" is understood here as encompassing any element supporting the mobile support 4 or any integral part of this element, the detector 3 can therefore be attached to the vehicle when the device of the invention is mounted on the latter.

Ainsi disposé, le détecteur 3, qui peut par exemple être constitué par un contact électrique étanche ou un capteur de proximité, est capable de détecter la rotation du support mobile 4 autour de l'axe de basculement Y sous l'effet conjugué de la force élastique développée par l'empilement 6 et de la charge exercée à l'encontre de cette force élastique et constituée par le poids la personne P.Thus arranged, the detector 3, which may for example be constituted by a sealed electrical contact or a proximity sensor, is capable of detecting the rotation of the mobile support 4 around the tilting axis Y under the combined effect of the force elastic developed by the stack 6 and the load exerted against this elastic force and constituted by the weight the person P.

Comme l'illustre la figure 1, la force élastique repousse l'ergot 43 contre le bord supérieur de la lumière oblongue 10 dans la position de repos du dispositif, c'est-à-dire en cas d'inoccupation de la marche 2, alors que, dans le cas contraire illustré à la figure 2, la charge constituée par le poids de la personne P vainc l'effet de la force élastique et repousse l'ergot 43 vers le bord inférieur de la lumière oblongue 10.As illustrated in FIG. 1, the elastic force pushes the lug 43 against the upper edge of the oblong slot 10 in the rest position of the device, that is to say in the case of the unoccupied step 2, whereas, in the opposite case illustrated in FIG. 2, the load constituted by the weight of the person P overcomes the effect of the elastic force and pushes the pin 43 towards the lower edge of the oblong slot 10.

En pratique, il est cependant judicieux que le support mobile 4, en cas d'occupation de la marche 2, vienne en butée franche sur le support fixe 1 dans la zone d'appui Z2 pour optimiser le confort et la stabilité de la personne P.In practice, it is however advisable that the mobile support 4, in the event of occupation of the step 2, come into abutment on the fixed support 1 in the support zone Z2 to optimize the comfort and stability of the person P.

Pour éviter toute tentative de neutralisation du détecteur 3, l'un et / ou l'autre des supports fixe et mobile 1 et 4 peut être doté d'un carter 44 recouvrant la zone de raccordement de ces supports et interdisant l'insertion d'une cale qui serait destinée à assurer le blocage relatif de ces supports.To avoid any attempt to neutralize the detector 3, one and / or the other of the fixed and movable supports 1 and 4 may be provided with a housing 44 covering the connection area of these supports and prohibiting the insertion of a wedge that would be intended to ensure the relative locking of these supports.

Les figures 1 et 2 représentent un mode de réalisation dans lequel la section distale 41 du support mobile 4 se raccorde à l'extrémité inférieure de la section proximale 42.FIGS. 1 and 2 show an embodiment in which the distal section 41 of the mobile support 4 is connected to the lower end of the proximal section 42.

Dans ces conditions, le support mobile 4 constitue un levier du deuxième type vis-à-vis de la charge constituée par le poids de la personne P, de la résistance appliquée par l'empilement 6 de rondelles élastiques, et du point de rotation constitué par l'axe de basculement Y.Under these conditions, the mobile support 4 constitutes a lever of the second type with respect to the load constituted by the weight of the person P, the resistance applied by the stack 6 of spring washers, and the rotation point constituted by by the tilting axis Y.

L'invention pourrait néanmoins être mise en oeuvre en raccordant la section distale 41 du support mobile 4 à l'extrémité supérieure de la section proximale 42, par exemple à la hauteur de l'axe de basculement Y.The invention could nevertheless be implemented by connecting the distal section 41 of the mobile support 4 to the upper end of the proximal section 42, for example at the height of the tilting axis Y.

Dans ce cas, le support mobile 4 constituerait alors un levier du premier type vis-à-vis de la charge constituée par le poids de la personne P, de la résistance appliquée par l'empilement 6 de rondelles élastiques, et du point de rotation constitué par l'axe de basculement Y.In this case, the mobile support 4 would then constitute a lever of the first type vis-à-vis the load constituted by the weight of the person P, the resistance applied by the stack 6 of elastic washers, and the point of rotation constituted by the tilting axis Y.

Claims (10)

Dispositif de marchepied utilisable sur un véhicule et comprenant au moins un support fixe (1), une marche (2), et un détecteur (3) propre à détecter l'occupation de la marche (2) par une personne (P), caractérisé en ce qu'il comprend en outre un support mobile (4) en équerre reliant la marche (2) au support fixe (1) et présentant une section distale (41) sensiblement horizontale et une section proximale (42) sensiblement verticale, en ce que la marche (2) est supportée par l'extrémité distale (410) de la section distale (41), en ce que la section proximale (42) partage avec le support fixe (1) une zone d'articulation mutuelle (Z1) et une zone d'appui mutuel (Z2), la zone d'appui (Z2) étant disposée en-dessous de la zone d'articulation (Z1), en ce que la section proximale (42) est montée à rotation sur le support fixe (1), autour d'un axe de basculement (Y) disposé dans la zone d'articulation (Z1), avec un débattement angulaire d'amplitude contrôlée mécaniquement, et sous l'effet conjugué d'une charge (P) éventuellement portée par la marche (2) ou par la section distale (41) du support mobile (4) et d'une force élastique antagoniste tendant à relever l'extrémité distale (410) du support mobile (4) et dimensionnée pour être à la fois non nulle et vaincue par une charge de valeur minimale, et en ce que le détecteur (3) est lié au support fixe (1) et disposé dans la zone d'appui (Z2) pour détecter la rotation du support mobile (4) entre deux positions limites du débattement angulaire sous l'effet conjugué de la charge éventuelle et de la force élastique.A running board device for use on a vehicle and comprising at least one fixed support (1), a step (2), and a detector (3) capable of detecting the occupancy of the step (2) by a person (P), characterized in that it further comprises a movable bracket (4) at right angles connecting the step (2) to the fixed support (1) and having a substantially horizontal distal section (41) and a substantially vertical proximal section (42), in that that the step (2) is supported by the distal end (410) of the distal section (41), in that the proximal section (42) shares with the fixed support (1) a mutual articulation zone (Z1) and a mutual support zone (Z2), the bearing zone (Z2) being disposed below the articulation zone (Z1), in that the proximal section (42) is rotatably mounted on the support fixed (1), about a tilting axis (Y) disposed in the articulation zone (Z1), with an angular displacement of mechanically controlled amplitude, and under the combined effect of a load (P) possibly carried by the step (2) or by the distal section (41) of the mobile support (4) and by an elastic elastic force tending to raise the distal end ( 410) of the movable support (4) and dimensioned to be both non-zero and overcome by a minimum value load, and in that the detector (3) is connected to the fixed support (1) and disposed in the region of support (Z2) for detecting the rotation of the mobile support (4) between two limit positions of the travel angular under the combined effect of the possible load and the elastic force. Dispositif de marchepied suivant la revendication 1, caractérisé en ce que la marche (2) est montée à rotation sur le support mobile (4) entre une position inactive dressée, et une position fonctionnelle sensiblement horizontale dans laquelle elle adopte un état stable et réversible.Step device according to claim 1, characterized in that the step (2) is rotatably mounted on the movable support (4) between an erect inactive position and a substantially horizontal functional position in which it adopts a stable and reversible state. Dispositif de marchepied suivant l'une quelconque des revendications précédentes, caractérisé en ce que la marche (2) est articulée sur l'extrémité distale (410) de la section distale (41) au moyen d'une articulation (5) à ressort (51) et à dépassement de la position d'alignement.Step device according to one of the preceding claims, characterized in that the step (2) is articulated on the distal end (410) of the distal section (41) by means of a spring joint (5) ( 51) and exceeding the alignment position. Dispositif de marchepied suivant l'une quelconque des revendications précédentes, caractérisé en ce que l'un des supports (1) présente une lumière oblongue (10) centrée sur l'axe de basculement (Y), en ce que l'autre support présente un ergot (43) engagé dans la lumière oblongue (10), et en ce que le débattement angulaire du support mobile (4) par rapport au support fixe (1) est déterminé par le débattement de l'ergot (43) dans la lumière (10).Step device according to one of the preceding claims, characterized in that one of the supports (1) has an oblong slot (10) centered on the tilting axis (Y), in that the other support present a lug (43) engaged in the oblong slot (10), and in that the angular displacement of the movable support (4) relative to the fixed support (1) is determined by the movement of the lug (43) in the light (10). Dispositif de marchepied suivant l'une quelconque des revendications précédentes, caractérisé en ce que le support mobile (4), en cas d'occupation de la marche (2) ou de l'extrémité distale (41) par une personne (P), vient en butée franche sur le support fixe (1) sous l'effet conjugué de la charge (P) que représente une partie au moins du poids de cette personne, et de la force élastique.Step device according to any one of the preceding claims, characterized in that the movable support (4), when the step (2) or the distal end (41) is occupied by a person (P), comes into abutment on the fixed support (1) under the combined effect of the load (P) that represents at least part of the weight of this person, and the elastic force. Dispositif de marchepied suivant l'une quelconque des revendications précédentes, caractérisé en ce que l'un au moins des supports fixe et mobile (1, 4) comporte un carter (44) couvrant la zone de raccordement de ces supports (1, 4) et interdisant l'insertion d'une cale de blocage relatif de ces supports (1, 4).Step device according to any one of the preceding claims, characterized in that at least one of the fixed and movable supports (1, 4) comprises a housing (44) covering the connection zone of these supports (1, 4). and prohibiting the insertion of a relative blocking wedge of these supports (1, 4). Dispositif de marchepied suivant l'une quelconque des revendications précédentes, caractérisé en ce que la section distale (41) se raccorde à l'extrémité supérieure de la section proximale (42), et en ce que le support mobile (4) constitue un levier du premier type.Step device according to one of the preceding claims, characterized in that the distal section (41) is connected to the upper end of the proximal section (42), and that the movable support (4) constitutes a lever of the first type. Dispositif de marchepied suivant l'une quelconque des revendications précédentes, caractérisé en ce que la section distale (41) se raccorde à l'extrémité inférieure de la section proximale (42), et en ce que le support mobile (4) constitue un levier du deuxième type.Step device according to one of the preceding claims, characterized in that the distal section (41) is connected to the lower end of the proximal section (42), and that the movable support (4) constitutes a lever of the second type. Dispositif de marchepied suivant l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un empilement (6) de rondelles élastiques de type "Belleville" précontraintes en compression, cet empilement étant interposé entre les supports (1, 4) dans la zone d'appui (Z2) et propre à développer ladite force élastique, et en ce que le support mobile (4) comprend un voile (45) disposé radialement par rapport à l'axe de basculement (Y) et en regard de l'empilement (6) de rondelles, auquel il retransmet la charge (P) éventuellement portée par la marche ou par ce support mobile.Running board device according to any one of the preceding claims, characterized in that it comprises a stack (6) of resilient washers of "Belleville" type prestressed in compression, this stack being interposed between the supports (1, 4) in the bearing zone (Z2) and adapted to develop said elastic force, and in that the movable support (4) comprises a web (45) arranged radially with respect to the tilting axis (Y) and facing the stacking (6) of washers, to which it retransmits the load (P) possibly carried by the step or by this mobile support. Véhicule à benne, notamment pour la collecte de déchets, caractérisé en ce qu'il est équipé d'un dispositif de marchepied suivant l'une quelconque des revendications précédentes.Dump vehicle, in particular for the collection of waste, characterized in that it is equipped with a step device according to any one of the preceding claims.
EP07290047A 2006-01-11 2007-01-11 Footboard and vehicle equipped which such a footboard Active EP1808384B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0600252A FR2895948B1 (en) 2006-01-11 2006-01-11 IMPROVED FOOTBOARD DEVICE AND VEHICLE EQUIPPED WITH SUCH A DEVICE

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EP1808384A1 true EP1808384A1 (en) 2007-07-18
EP1808384B1 EP1808384B1 (en) 2008-04-23

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EP07290047A Active EP1808384B1 (en) 2006-01-11 2007-01-11 Footboard and vehicle equipped which such a footboard

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EP (1) EP1808384B1 (en)
DE (1) DE602007000012T2 (en)
ES (1) ES2304781T3 (en)
FR (1) FR2895948B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014103270U1 (en) * 2014-07-16 2014-07-23 Zöller-Kipper GmbH Footboard device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20011220U1 (en) * 2000-06-26 2001-08-16 Faun Umwelttechnik Gmbh & Co Refuse collection vehicle
EP1247765A1 (en) * 2001-04-04 2002-10-09 Zöller-Kipper GmbH Load monitoring device for foot boards

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20011220U1 (en) * 2000-06-26 2001-08-16 Faun Umwelttechnik Gmbh & Co Refuse collection vehicle
EP1247765A1 (en) * 2001-04-04 2002-10-09 Zöller-Kipper GmbH Load monitoring device for foot boards

Also Published As

Publication number Publication date
EP1808384B1 (en) 2008-04-23
FR2895948A1 (en) 2007-07-13
ES2304781T3 (en) 2008-10-16
FR2895948B1 (en) 2008-03-14
DE602007000012T2 (en) 2010-04-15
DE602007000012D1 (en) 2008-06-05

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