EP1125865B1 - Tank comprising a manhole and tank truck comprising such a tank - Google Patents

Tank comprising a manhole and tank truck comprising such a tank Download PDF

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Publication number
EP1125865B1
EP1125865B1 EP01400367A EP01400367A EP1125865B1 EP 1125865 B1 EP1125865 B1 EP 1125865B1 EP 01400367 A EP01400367 A EP 01400367A EP 01400367 A EP01400367 A EP 01400367A EP 1125865 B1 EP1125865 B1 EP 1125865B1
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EP
European Patent Office
Prior art keywords
tank
envelope
ferrule
cylindrical
spout
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Expired - Lifetime
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EP01400367A
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German (de)
French (fr)
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EP1125865A1 (en
Inventor
Christophe Gressier
Raymond Krukar
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General Trailers France SA
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General Trailers France SA
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Publication of EP1125865A1 publication Critical patent/EP1125865A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/10—Manholes; Inspection openings; Covers therefor

Definitions

  • the invention relates to a tank provided with a inspection and a tank vehicle comprising such a tank.
  • the invention relates to a tank formed by a cylindrical envelope, closed at its two ends, which is provided, at the top, with an inspection hatch, also called manhole or manhole, comprising a cylindrical ferrule and a cover.
  • the term "cylindrical” must be understood as designating any general shape of the tank envelope with the exception of the spherical shape.
  • the present invention applies to tanks constituted by an elongated tank, the precise shape of the envelope, namely cylindrical, cylindrical of revolution, frustoconical or all mixed forms, being indifferent, since the invention relates more specifically the arrangement of the inspection hatch on the tank and the part of the tank in which the inspection hatch is located.
  • the present invention applies equally to tanks made up of a single tank and to tanks divided or divided into, or made up of, several tanks and that, for this reason, in the description below, the term “tank” covers both.
  • Tank inspection hatches have several functions. One of these functions is to provide access to the interior of the tank for filling it and also for work inspection, cleaning or even repair. Another function is to allow the filling rate to be identified of the tank, and yet another function is that of a vent during when filling or emptying the tank if entrances and Separate outputs are provided for these effects. All of these functions, and possibly others, cause openings and frequent closings of the tank inspection hatch. For this reason and, moreover, to facilitate opening and closing of the inspection hatch, this consists of a ferrule cylindrical secured to the shell of the tank, and by a cover usually attached to the shell by a hinge.
  • each of the tank inspection hatches therefore protruded at the top of the tank.
  • the height of the tank is increased by an additional height likely to constitute a constraint when choosing a tank.
  • the tank when the tank must be installed in a local, it must not exceed a given height taking into account dimensions of this room or taking into account the height maximum passage through an opening to access this local. And when the tank is intended to equip a vehicle road or rail vehicle, the vehicle comprising the tank must not exceed the regulatory height according to the corresponding template.
  • a tank formed by a cylindrical envelope, closed at both ends and provided at the top with a inspection hatch is known from document FR-A-2670470.
  • the inspection hatch includes a cylindrical shell which is the seat of a cover and which extends inside of the envelope.
  • this loss of height can sometimes be compensated by a greater width of the tank.
  • this possibility of compensation is generally limited by the same template as that limiting the height of the tank.
  • the object of the invention is to propose a tank whose inspection hatch does not exceed the silhouette of the tank, but which nevertheless presents a simple design and allows in particular an easy handling of the cover of the hatch, comparable to the design and ease of known handling of tanks used so far.
  • the object of the invention is achieved by a tank formed by a cylindrical envelope, closed at its two ends, provided at the top with an inspection hatch comprising a cylindrical shell, seat with a cover.
  • the ferrule extends inside the envelope and, relative to the top of the envelope, at a level such that the upper surface of the cover defines a plane extending parallel to, and at the shortest distance possible from the top of the envelope, the shell being surrounded by a channel opening at at least one place on the envelope.
  • the height of the ferrule is chosen so that the upper face of the cover and no other part of the inspection hatch are located at a level higher than that of the top of the envelope.
  • the depth of the inspection hatch shell is chosen so that that the channel is divided into two parts.
  • the ferrule of the inspection hatch is lowered inside the envelope, depending on the diameter of the ferrule and of the radius defining the curvature of the upper part of the tank, at a level such as the bottom of the channel, represented by a circle in the case of a cylindrical inspection hatch, cuts the tank shell in at least two places.
  • This preferred arrangement of the invention provides the channel for two openings allowing flow to both one side and towards the other side of the tank.
  • the ferrule is cylindrical with revolution and the channel opens in two places diametrically opposite on the envelope, these openings dividing the channel into two parts each of which surrounds less than half of the shell.
  • the ferrule has a section non-circular cross-section, the longest axis of this section forming a non-rectangle angle with the longitudinal axis of the tank.
  • the cover can be attached to the shell by a hinge and closed by quick closing means. It can also be both fixed and closed with a few quick fasteners.
  • the invention can be applied in two ways different. The first is that of being able to manufacture tanks whose overall height is reduced by the fact that the hatches no longer exceed the top of the tank. The second is that of being able to increase the volume of the tanks without increasing the current overall height of the corresponding tanks.
  • the object of the invention is also achieved by a tank vehicle comprising a tank having the characteristics described above.
  • the tank vehicle shown in Figure 1 consists of essentially by a tank formed, according to the invention, by a cylindrical casing 1 closed at both ends.
  • the tank is represented with a single inspection hatch 2 arranged symmetrically with respect to the top 11 of the tank.
  • the tank without departing from the scope of the present invention, either divided into several compartments each of which is provided with a inspection, or that the tank forms a single compartment, but either provided with several inspection hatches, or even that the tank is formed, regardless of a possible distribution in several compartments, by two or more envelope parts cylindrical, cylindrical of revolution or frustoconical, the axes form various angles between them.
  • the inspection hatch is shown, to simplify the drawing and the explanation, as being constituted essentially by a cylindrical ferrule 21 of revolution and a cover 22 to circular circumference.
  • the inspection hatch is shown, to simplify the drawing and the explanation, as being constituted essentially by a cylindrical ferrule 21 of revolution and a cover 22 to circular circumference.
  • other forms of the visit for example oval hatches, are conceivable, without depart from the scope of the present invention, in order to respond to special needs arising, for example, from use particular of the tank.
  • the inspection hatch 2 and more particularly the ferrule 21, is surrounded on most of its periphery by two channels 241 and 242, referenced together as channel 24. This particular arrangement of the division of the channel 24 in two parts is obtained by a sufficient lowering h of the hatch visit inside the envelope.
  • Figure 2 shows, disproportionately for a better clarity of the drawing, the arrangement of the invention according to which a plane A defined by the upper face 23 of the cover 22, extends to the smallest possible distance d from the vertex line 11 of envelope 1.
  • This distance d can be of the order of 1 or 2 cm, while the tank inspection hatches used up to now exceed the envelope by ten or twenty cm about.
  • Figures 3 and 4 show two sections transverse of the tank according to the invention at an axial distance one from the other. More specifically, Figure 3 shows a cross section passing through a line A-A corresponding to the place of the greatest depth of the channel relative to the envelope, while Figure 4 shows a section transverse passing through a line B-B constituting the axis of ferrule revolution 21.

Abstract

The tanker vehicle tank has a cylindrical casing (1) closed at each end and having an access hatch (2) at the top. The hatch has a cylindrical shaft (21) and a cover (22). The shaft extends into the tank from the top (11) at a level such that the upper surface of the cover defines a plane (A) parallel to and at a small distance from the top. The shaft is enclosed by a flank (24) opening at a point on the tank.

Description

L'invention concerne une citerne pourvue d'une trappe de visite et un véhicule-citerne comprenant une telle citerne.The invention relates to a tank provided with a inspection and a tank vehicle comprising such a tank.

Plus particulièrement, l'invention concerne une citerne formée par une enveloppe cylindrique, fermée à ses deux extrémités, qui est pourvue, au sommet, d'une trappe de visite, également appelée trou de visite ou trou d'homme, comprenant une virole cylindrique et un couvercle.More particularly, the invention relates to a tank formed by a cylindrical envelope, closed at its two ends, which is provided, at the top, with an inspection hatch, also called manhole or manhole, comprising a cylindrical ferrule and a cover.

Il est précisé pour les besoins de la déscription de la présente invention que le terme " cylindrique " doit être compris comme désignant toute forme générale de l'enveloppe de la citerne à l'exception de la forme sphérique. En effet, la présente invention s'applique à des citernes constituées par une cuve allongée, la forme précise de l'enveloppe, à savoir cylindrique, cylindrique de révolution, tronconique ou toutes formes mixtes, étant indifférent, puisque l'invention concerne plus spécialement la disposition de la trappe de visite sur la citerne et la partie de la citerne dans laquelle la trappe de visite est située.
De même, il est précisé que la présente invention s'applique indifféremment aux citernes constituées d'une seule cuve et aux citernes divisées ou reparties en, ou constituées par, plusieurs cuves et que, pour cette raison, dans la description ci-après, le terme " citerne " englobe les deux.It is specified for the purposes of the description of the present invention that the term "cylindrical" must be understood as designating any general shape of the tank envelope with the exception of the spherical shape. Indeed, the present invention applies to tanks constituted by an elongated tank, the precise shape of the envelope, namely cylindrical, cylindrical of revolution, frustoconical or all mixed forms, being indifferent, since the invention relates more specifically the arrangement of the inspection hatch on the tank and the part of the tank in which the inspection hatch is located.
Similarly, it is specified that the present invention applies equally to tanks made up of a single tank and to tanks divided or divided into, or made up of, several tanks and that, for this reason, in the description below, the term "tank" covers both.

Les trappes de visite des citernes ont plusieurs fonctions. Une de ces fonctions est de donner accès à l'intérieur de la citerne pour le remplissage de celle-ci et aussi pour des travaux d'inspection, de nettoyage ou même de réparation. Une autre fonction est celle de permettre le repérage du taux de remplissage de la citerne, et encore une autre fonction est celle d'un évent lors du remplissage ou lors de la vidange de la citerne si des entrées et sorties distincts sont prévus à ces effets. Toutes ces fonctions, et éventuellement d'autres, occasionnent des ouvertures et fermetures fréquentes de la trappe de visite de la citerne. Pour cette raison et, par ailleurs, pour faciliter l'ouverture et la fermeture de la trappe de visite, celle-ci est constituée par une virole cylindrique solidaire de l'enveloppe de la citerne, et par un couvercle habituellement attaché à la virole par une charnière.Tank inspection hatches have several functions. One of these functions is to provide access to the interior of the tank for filling it and also for work inspection, cleaning or even repair. Another function is to allow the filling rate to be identified of the tank, and yet another function is that of a vent during when filling or emptying the tank if entrances and Separate outputs are provided for these effects. All of these functions, and possibly others, cause openings and frequent closings of the tank inspection hatch. For this reason and, moreover, to facilitate opening and closing of the inspection hatch, this consists of a ferrule cylindrical secured to the shell of the tank, and by a cover usually attached to the shell by a hinge.

La trappe de visite, ou le cas échéant chacune des trappes de visite de la citerne est donc montée en saillie au sommet de la citerne. Il en résulte que la hauteur de la citerne est ainsi augmentée d'une hauteur supplémentaire susceptible de constituer une contrainte lors du choix d'une citerne.The inspection hatch, or if necessary each of the the tank inspection hatches therefore protruded at the top of the tank. As a result, the height of the tank is increased by an additional height likely to constitute a constraint when choosing a tank.

En effet, lorsque la citerne doit être installée dans un local, elle ne doit pas dépasser une hauteur donnée compte-tenu des dimensions de ce local ou compte tenu de la hauteur maximale de passage par une ouverture pour accéder à ce local. Et lorsque la citerne est destinée à équiper un véhicule routier ou un véhicule ferroviaire, le véhicule comprenant la citerne ne doit pas dépasser la hauteur réglementaire selon le gabarit correspondant. La trappe de visite étant en saillie par rapport à l'enveloppe de la citerne, la hauteur effective du véhicule, et par cela aussi le volume utile de la citerne, se trouve ainsi diminuée.Indeed, when the tank must be installed in a local, it must not exceed a given height taking into account dimensions of this room or taking into account the height maximum passage through an opening to access this local. And when the tank is intended to equip a vehicle road or rail vehicle, the vehicle comprising the tank must not exceed the regulatory height according to the corresponding template. The inspection hatch projecting from relative to the tank shell, the effective height of the vehicle, and therefore also the useful volume of the tank, is thus reduced.

Une citerne formée par une enveloppe cylindrique, fermée à ses deux extrémités et pourvue au sommet d'une trappe de visite est connue du document FR-A-2670470. La trappe de visite comprend une virole cylindrique qui est le siège d'un couvercle et qui s'étend à l'intérieur de l'enveloppe.A tank formed by a cylindrical envelope, closed at both ends and provided at the top with a inspection hatch is known from document FR-A-2670470. The inspection hatch includes a cylindrical shell which is the seat of a cover and which extends inside of the envelope.

A volume égal, cette perte de hauteur peut parfois être compensée par une plus grande largeur de la citerne. Toutefois, cette possibilité de compensation est en général limitée par le même gabarit que celui limitant la hauteur de la citerne.At equal volume, this loss of height can sometimes be compensated by a greater width of the tank. However, this possibility of compensation is generally limited by the same template as that limiting the height of the tank.

La compensation du manque de volume par une plus grande longueur de la citerne n'est pas toujours possible non plus que ce soit pour des raisons réglementaires, pour des raisons de stabilité de la citerne ou pour d'autres raisons. Compensating for the lack of volume with a more great length of the tank is not always possible either more than for regulatory reasons, for reasons reasons of tank stability or other reasons.

Le but de l'invention est de proposer une citerne dont la trappe de visite ne dépasse pas la silhouette de la citerne, mais qui présente quand même une conception simple et permet notamment une manipulation facile du couvercle de la trappe, comparable à la conception et à la facilité de manipulation connues des citernes utilisées jusqu'à présent.The object of the invention is to propose a tank whose inspection hatch does not exceed the silhouette of the tank, but which nevertheless presents a simple design and allows in particular an easy handling of the cover of the hatch, comparable to the design and ease of known handling of tanks used so far.

Le but de l'invention est atteint par une citerne formée par une enveloppe cylindrique, fermée à ses deux extrémités, pourvue au sommet d'une trappe de visite comprenant une virole cylindrique, siège d'un couvercle. The object of the invention is achieved by a tank formed by a cylindrical envelope, closed at its two ends, provided at the top with an inspection hatch comprising a cylindrical shell, seat with a cover.

Conformément à l'invention, la virole s'étend à l'intérieur de l'enveloppe et, par rapport au sommet de l'enveloppe, à un niveau tel que la surface supérieure du couvercle définisse un plan s'étendant parallèlement au, et à la plus petite distance possible du, sommet de l'enveloppe, la virole étant entourée par une rigole débouchant à au moins un endroit sur l'enveloppe.According to the invention, the ferrule extends inside the envelope and, relative to the top of the envelope, at a level such that the upper surface of the cover defines a plane extending parallel to, and at the shortest distance possible from the top of the envelope, the shell being surrounded by a channel opening at at least one place on the envelope.

Cette disposition de l'invention est obtenue par le concours de trois éléments:

  • la trappe de visite est abaissée par rapport au niveau défini par le sommet de l'enveloppe de la citerne. Le fait que la virole de la trappe de visite s'étend essentiellement à l'intérieur du volume défini par l'enveloppe, permet de placer la surface supérieure du couvercle, considérée dans le cadre de la présente invention comme la partie la plus élevée de la trappe de visite, au même niveau que la ligne de sommet de la partie de l'enveloppe de la citerne dans laquelle est disposée la trappe de visite. Ainsi, la hauteur maximale admise pour une citerne devient sensiblement identique à la hauteur de la ligne de sommet de l'enveloppe de la citerne.
  • la trappe de visite, et plus particulièrement la virole cylindrique qui forme le siège pour le couvercle, est entourée d'une rigole. La rigole constitue un espace vide autour de la trappe de visite ce qui permet de continuer à utiliser des moyens simples tels que des charnières pour attacher le couvercle à la virole, et les moyens de fermeture du couvercle.
  • la rigole débouche sur l'enveloppe. Cette disposition selon l'invention est obtenue avantageusement en choisissant la profondeur de la virole telle que le fond de la rigole, correspondant à un cercle pour une virole cylindrique de révolution, coupe l'enveloppe à au moins un endroit. Ainsi, la rigole est ouverte vers l'enveloppe à cet endroit ou à ces endroits. L'ouverture ainsi formée sert comme écoulement pour l'eau de pluie ou l'eau de lavage entrée dans la rigole.
This arrangement of the invention is obtained by the aid of three elements:
  • the inspection hatch is lowered from the level defined by the top of the tank envelope. The fact that the shell of the inspection hatch extends essentially inside the volume defined by the envelope, makes it possible to place the upper surface of the cover, considered in the context of the present invention as the highest part of the inspection hatch, at the same level as the top line of the part of the tank envelope in which the inspection hatch is arranged. Thus, the maximum height allowed for a tank becomes substantially identical to the height of the top line of the tank envelope.
  • the inspection hatch, and more particularly the cylindrical shell which forms the seat for the cover, is surrounded by a channel. The channel constitutes an empty space around the inspection hatch, which makes it possible to continue using simple means such as hinges for attaching the cover to the shell, and the means for closing the cover.
  • the channel leads to the envelope. This arrangement according to the invention is advantageously obtained by choosing the depth of the shell such that the bottom of the channel, corresponding to a circle for a cylindrical shell of revolution, cuts the envelope at at least one place. Thus, the channel is open towards the envelope at this location or at these locations. The opening thus formed serves as a drain for rainwater or washing water entering the channel.

Selon un mode de réalisation idéal de l'invention, la hauteur de la virole est choisie de façon que la face supérieure du couvercle et aucune autre partie de la trappe de visite ne soient situées à un niveau supérieur à celui du sommet de l'enveloppe.According to an ideal embodiment of the invention, the height of the ferrule is chosen so that the upper face of the cover and no other part of the inspection hatch are located at a level higher than that of the top of the envelope.

Cependant, des impératifs de construction tels que l'utilisation de pièces standardisées, ou les définitions de la hauteur maximale admise éventuellement différentes d'un pays à l'autre, peuvent conduire à des variantes de réalisation qui dévient du mode de réalisation idéal décrit ci-avant en ce que le plan défini par la face supérieure du couvercle de la trappe de visite s'étendant parallèlement, mais à une distance du sommet de l'enveloppe de la citerne ou de la partie de la citerne dans laquelle est située la trappe de visite. Bien entendu, conformément à l'invention, cette distance doit être la plus petite possible, voire négligeable par rapport aux dimensions de la citerne.However, construction requirements such as the use of standardized parts, or the definitions of possible maximum height different from country to country the other, can lead to variant embodiments which deviate of the ideal embodiment described above in that the defined plan by the upper face of the cover of the inspection hatch extending parallel but at a distance from the top of the shell of the tank or of the part of the tank in which is located the inspection hatch. Of course, in accordance with the invention, this distance must be as small as possible, even negligible compared to the dimensions of the tank.

Selon un mode de réalisation avantageux de l'invention, la profondeur de la virole de la trappe de visite est choisie de façon que la rigole soit divisée en deux parties. Selon cette disposition préférée de l'invention, la virole de la trappe de visite est abaissée à l'intérieur de l'enveloppe, en fonction du diamètre de la virole et du rayon définissant la courbure de la partie supérieure de la citerne, à un niveau tel que le fond de la rigole, représenté par un cercle dans le cas d'une trappe de visite cylindrique de révolution, coupe l'enveloppe de la citerne à au moins deux endroits. Cette disposition préférée de l'invention pourvoit la rigole de deux ouvertures permettant un écoulement aussi bien vers un côté que vers l'autre de la citerne.According to an advantageous embodiment of the invention, the depth of the inspection hatch shell is chosen so that that the channel is divided into two parts. According to this provision preferred of the invention, the ferrule of the inspection hatch is lowered inside the envelope, depending on the diameter of the ferrule and of the radius defining the curvature of the upper part of the tank, at a level such as the bottom of the channel, represented by a circle in the case of a cylindrical inspection hatch, cuts the tank shell in at least two places. This preferred arrangement of the invention provides the channel for two openings allowing flow to both one side and towards the other side of the tank.

Selon une première variante, la virole est cylindrique de révolution et la rigole débouche à deux endroits diamétralement opposés sur l'enveloppe, ces ouvertures divisant la rigole en deux parties dont chacune entoure moins qu'une moitié de la virole.According to a first variant, the ferrule is cylindrical with revolution and the channel opens in two places diametrically opposite on the envelope, these openings dividing the channel into two parts each of which surrounds less than half of the shell.

Selon une seconde variante, la virole a une section transversale non-circulaire, le plus grand axe de cette section formant un angle non-rectangle avec l'axe longitudinal de la citerne. Selon cette conception, qui est concevable pour des citernes dont les trappes de visites doivent répondre à des critères spécifiques et dont le couvercle doit, de plus, s'ouvrir dans une direction différente que celle de l'axe longitudinal de la citerne, la rigole débouche à deux endroits sur l'enveloppe, ces ouvertures divisant la rigole en deux parties non-symétriques par rapport à l'axe longitudinal de la citerne.According to a second variant, the ferrule has a section non-circular cross-section, the longest axis of this section forming a non-rectangle angle with the longitudinal axis of the tank. According to this conception, which is conceivable for tanks whose inspection hatches must meet criteria specific and whose cover must also open in a direction different from that of the longitudinal axis of the tank, the channel opens in two places on the envelope, these openings dividing the channel into two non-symmetrical parts with respect to the longitudinal axis of the tank.

Indépendamment d'un mode de réalisation particulier, le couvercle peut attaché à la virole par une charnière et fermé par des moyens de fermeture rapide. Il peut également être à la fois fixé et fermé par quelques éléments de fixation rapide.Regardless of a particular embodiment, the cover can be attached to the shell by a hinge and closed by quick closing means. It can also be both fixed and closed with a few quick fasteners.

L'invention peut être appliquée dans deux optiques différentes. La première est celle de pouvoir fabriquer des citernes dont la hauteur hors tout est reduite du fait que les trappes de visite ne dépassent plus le sommet de la citerne. La seconde est celle de pouvoir augmenter le volume des citernes sans augmenter la hauteur hors tout actuelle des citernes correspondantes.The invention can be applied in two ways different. The first is that of being able to manufacture tanks whose overall height is reduced by the fact that the hatches no longer exceed the top of the tank. The second is that of being able to increase the volume of the tanks without increasing the current overall height of the corresponding tanks.

Le but de l'invention est également atteint par un véhicule-citerne comprenant une citerne ayant les caractéristiques décrites ci-avant.The object of the invention is also achieved by a tank vehicle comprising a tank having the characteristics described above.

D'autres caractéristiques et avantages de l'invention ressortiront de la description d'un mode de réalisation donné ci-après en référence aux dessins. Dans ces dessins:

  • La Figure 1 représente un véhicule-citerne en perspective, le véhicule comprenant une citerne selon l'invention.
  • La Figure 2 montre une coupe longitudinale de la citerne de la Figure 1 suivant un plan médian de la citerne.
  • Les Figures 3 et 4 représentent deux coupes transversales de la citerne de la Figure 1 selon des lignes de coupe A-A et B-B indiquées dans la Figure 2.
    • Other characteristics and advantages of the invention will emerge from the description of an embodiment given below with reference to the drawings. In these drawings:
  • Figure 1 shows a tank vehicle in perspective, the vehicle comprising a tank according to the invention.
  • Figure 2 shows a longitudinal section of the tank of Figure 1 along a median plane of the tank.
  • Figures 3 and 4 show two cross sections of the tank of Figure 1 along section lines AA and BB indicated in Figure 2.

    • Le véhicule-citerne représenté sur la Figure 1 est constitué essentiellement par une citerne formée, selon l'invention, par une enveloppe cylindrique 1 fermée à ses deux extrémités. Pour simplifier le dessin, la citerne est représentée avec une seule trappe de visite 2 disposée symétriquement par rapport au sommet 11 de la citerne. Il est bien entendu concevable que la citerne, sans sortir du cadre de la présente invention, soit repartie en plusieurs compartiments dont chacun est pourvu d'une trappe de visite, ou que la citerne forme un seul compartiment, mais soit pourvue de plusieurs trappes de visite, ou encore que la citerne soit formée, indépendamment d'une répartition éventuelle en plusieurs compartiments, par deux ou plusieurs parties d'enveloppe cylindriques, cylindriques de révolution ou tronconiques, dont les axes forment entre eux divers angles.The tank vehicle shown in Figure 1 consists of essentially by a tank formed, according to the invention, by a cylindrical casing 1 closed at both ends. For simplify the drawing, the tank is represented with a single inspection hatch 2 arranged symmetrically with respect to the top 11 of the tank. It is of course conceivable that the tank, without departing from the scope of the present invention, either divided into several compartments each of which is provided with a inspection, or that the tank forms a single compartment, but either provided with several inspection hatches, or even that the tank is formed, regardless of a possible distribution in several compartments, by two or more envelope parts cylindrical, cylindrical of revolution or frustoconical, the axes form various angles between them.

    De même, la trappe de visite est représentée, pour simplifier le dessin et l'explication, comme étant constituée essentiellement par une virole 21 cylindrique de révolution et un couvercle 22 à pourtour circulaire. Bien entendu, d'autres formes de la trappe de visite, par exemple des trappes ovales, sont concevables, sans sortir du cadre de la présente invention, pour répondre à des besoins particuliers relevant, par exemple, d'une utilisation particulière de la citerne.Similarly, the inspection hatch is shown, to simplify the drawing and the explanation, as being constituted essentially by a cylindrical ferrule 21 of revolution and a cover 22 to circular circumference. Of course, other forms of the visit, for example oval hatches, are conceivable, without depart from the scope of the present invention, in order to respond to special needs arising, for example, from use particular of the tank.

    La trappe de visite 2, et plus particulièrement la virole 21, est entouré sur la plus grande partie de son pourtour de deux rigoles partielles 241 et 242, référencées ensemble comme rigole 24. Cette disposition particulière de la division de la rigole 24 en deux parties est obtenue par un abaissement h suffisant de la trappe de visite à l'intérieur de l'enveloppe.The inspection hatch 2, and more particularly the ferrule 21, is surrounded on most of its periphery by two channels 241 and 242, referenced together as channel 24. This particular arrangement of the division of the channel 24 in two parts is obtained by a sufficient lowering h of the hatch visit inside the envelope.

    La Figure 2 représente, de façon disproportionnée pour une meilleure clarté du dessin, la disposition de l'invention selon laquelle un plan A défini par la face supérieure 23 du couvercle 22, s'étend à la plus petite distance d possible de la ligne de sommet 11 de l'enveloppe 1. Cette distance d peut être de l'ordre de 1 ou 2 cm, alors que les trappes de visite des citernes utilisées jusqu'à maintenant dépassent l'enveloppe d'une dizaine ou vingtaine de cm environ.Figure 2 shows, disproportionately for a better clarity of the drawing, the arrangement of the invention according to which a plane A defined by the upper face 23 of the cover 22, extends to the smallest possible distance d from the vertex line 11 of envelope 1. This distance d can be of the order of 1 or 2 cm, while the tank inspection hatches used up to now exceed the envelope by ten or twenty cm about.

    Pour bien représenter la forme de la rigole 24 donnant lieu à deux ouvertures C et D par lesquelles l'eau de pluie ou l'eau de lavage peut s'écouler, les Figures 3 et 4 montrent deux coupes transversales de la citerne selon l'invention à une distance axiale l'une de l'autre. Plus particulièrement, la Figure 3 représente une section transversale passant par une ligne A-A correspondant à l'endroit de la plus grande profondeur de la rigole par rapport à l'enveloppe, alors que la Figure 4 représente une coupe transversale passant par une ligne B-B constituant l'axe de révolution de la virole 21.To properly represent the shape of the channel 24 giving rise to two openings C and D through which rainwater or water from washing can flow, Figures 3 and 4 show two sections transverse of the tank according to the invention at an axial distance one from the other. More specifically, Figure 3 shows a cross section passing through a line A-A corresponding to the place of the greatest depth of the channel relative to the envelope, while Figure 4 shows a section transverse passing through a line B-B constituting the axis of ferrule revolution 21.

    Claims (6)

    1. A tank formed by a cylindrical envelope (1), closed at both its ends, provided at the top (11) with a manhole (1) comprising a cylindrical ferrule (21), accommodating a lid (22), extending inside the envelope (1),
      characterised in that the ferrule (21) extends relative to the top (1) of the envelope, at such a level that the upper surface (23) of the lid (22) delineates a plane (A) extending parallel to, and at the shortest possible distance (d) from the top (11) of the envelope, the ferrule (21) being surrounded by a spout (24) emerging at one point (C, D) at least on the envelope (1).
    2. A tank according to claim 1, characterised in that the ferrule (21) of the manhole (2) is lowered inside the envelope (1) at such a depth (h) that the spout (24) emerges at two points (C, D) on the envelope (1), whereas such apertures (C, D) divide the spout (24) into two sections (241, 242).
    3. A tank according to claim 1 or 2, characterised in that the ferrule (21) is cylindrical in revolution and in that the ferrule (24) emerges at two points (C, D) diametrically opposed on the envelope (1), whereas such apertures (C, D) divide the spout (24) into two sections (241, 242), whereby each of both sections surrounds less than one half of the ferrule (21).
    4. A tank according to claim 1, 2 or 3, characterised in that the ferrule (21) has a non-circular cross-section, whereas the greater axis of such section forms a non-rectangular angle with the longitudinal axis of the tank, and in that the spout (24) emerges at two points (C, D) on the envelope (1), such apertures (C, D) dividing the spout (24) into two sections (241, 242).
    5. A tank according to any of the previous claims, characterised in that the lid (22) is attached to the ferrule (21) by a hinge (25).
    6. A tank truck comprising a tank according to any of the claims 1 to 5.
    EP01400367A 2000-02-15 2001-02-12 Tank comprising a manhole and tank truck comprising such a tank Expired - Lifetime EP1125865B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0001863A FR2804942B1 (en) 2000-02-15 2000-02-15 TANK COMPRISING A VISIT HATCH AND TANK VEHICLE COMPRISING SUCH A TANK
    FR0001863 2000-02-15

    Publications (2)

    Publication Number Publication Date
    EP1125865A1 EP1125865A1 (en) 2001-08-22
    EP1125865B1 true EP1125865B1 (en) 2003-08-13

    Family

    ID=8847020

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP01400367A Expired - Lifetime EP1125865B1 (en) 2000-02-15 2001-02-12 Tank comprising a manhole and tank truck comprising such a tank

    Country Status (7)

    Country Link
    EP (1) EP1125865B1 (en)
    AT (1) ATE247054T1 (en)
    DE (1) DE60100573T2 (en)
    DK (1) DK1125865T3 (en)
    ES (1) ES2203581T3 (en)
    FR (1) FR2804942B1 (en)
    PT (1) PT1125865E (en)

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2885122B1 (en) * 2005-04-29 2010-02-05 Ets Magyar METALLIC TANK COMPRISING A MAN'S HOLE MOUNTED USING AN APOLATED VIROLE
    US9834128B2 (en) 2014-04-23 2017-12-05 Tremcar Inc. Tank trailer operating system

    Family Cites Families (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2478039A1 (en) * 1980-03-11 1981-09-18 Magyar Sa G Insulating jacket seal for tank vehicle and manhole neck - is in one piece and held in place by material plasticity with internal elliptical shape
    FR2670470B1 (en) * 1990-12-18 1993-03-19 Arbel Fauvet Rail Sa DEVICE FOR SEALING AN OPENING IN THE WALL OF A TANK.
    US5133475A (en) * 1991-02-13 1992-07-28 Sharp Bruce R Storage tank with integral manway
    WO1994007772A1 (en) * 1992-10-01 1994-04-14 Anti-Spill Technology Pty. Limited Hatch seal

    Also Published As

    Publication number Publication date
    PT1125865E (en) 2003-12-31
    DE60100573D1 (en) 2003-09-18
    EP1125865A1 (en) 2001-08-22
    FR2804942A1 (en) 2001-08-17
    DE60100573T2 (en) 2004-06-24
    ES2203581T3 (en) 2004-04-16
    DK1125865T3 (en) 2003-12-08
    ATE247054T1 (en) 2003-08-15
    FR2804942B1 (en) 2002-06-21

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