EP0916301B1 - Plug-in unit for latching a suction pipe for a vacuum cleaner in a centralized vacuum cleaning installation - Google Patents

Plug-in unit for latching a suction pipe for a vacuum cleaner in a centralized vacuum cleaning installation Download PDF

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Publication number
EP0916301B1
EP0916301B1 EP98420206A EP98420206A EP0916301B1 EP 0916301 B1 EP0916301 B1 EP 0916301B1 EP 98420206 A EP98420206 A EP 98420206A EP 98420206 A EP98420206 A EP 98420206A EP 0916301 B1 EP0916301 B1 EP 0916301B1
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EP
European Patent Office
Prior art keywords
tubular body
endpiece
socket according
central
vacuum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98420206A
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German (de)
French (fr)
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EP0916301A1 (en
Inventor
Sri Rajah Skanda
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Aldes Aeraulique SA
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Aldes Aeraulique SA
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Publication of EP0916301A1 publication Critical patent/EP0916301A1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/38—Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected

Definitions

  • the subject of the present invention is a plug for the connection of a dust extraction hose to a system central vacuum.
  • a central vacuum system consists of a central vacuum unit installed in a technical room, and outlet installed in the different rooms of a residential building of offices, or receiving from the public, the sockets being connected to the central suction by a network of smooth ducts.
  • the suction sockets are used to connect the duct network of suction to a brush used to vacuum dust, this brush being attached to a flexible tube, the other end of which is fitted with a nozzle intended to be inserted into an outlet connecting the flexible pipe to the central vacuum unit and starting up this central unit, for example by via a microswitch fixed in the socket.
  • Document FR 1,534,667 relates to an installation central vacuum system with tube connection boxes flexible, housed in the walls of the room to be equipped. Each case is closed by a shutter to be opened manually before introduction of the end of the flexible tube. The seal at closing is completed by a retractable spherical shutter during aspiration.
  • the suction sockets are mounted either on the floor or the most generally in the lower part of a partition. These sockets are generally covered with a flap, which must be pivoted outwards before the engagement of the connecting piece of the suction hose.
  • Such arrangement has the disadvantage of not being able to install furniture at the location of a socket, which is particularly damaging in office buildings where moves are frequent, and where office partitions can be moved.
  • the suction ports should be easily accessible through the person performing dust extraction. It would be preferable, especially in office buildings with a false ceiling, to arrange the suction sockets on the ceiling, so that these sockets would no longer be inconvenient for furniture or partitions.
  • the object of the invention is to provide a plug for the connection of a dust extraction hose to a system central vacuum, in which the body of the socket can be placed just as well on the floor, in a wall or ceiling, everything allowing easy and immediate insertion of the hose end flexible in the body of the socket and an operation automatic installation, even if the operator is at a certain distance from the body of the socket.
  • the endpiece is fixed to one end of a section of rigid tube, at the other end of which is fixed a flexible pipe.
  • the rigid tube section is of adjustable length being made from several rigid elements assembled end to end or telescopic.
  • the means of carrying out control command information operation of the control unit consists, for example, of a contact electric.
  • connection of a suction hose to the outlet is made by simple engagement of the nozzle associated with the pipe in the tubular body of the outlet. This movement, easily achieved due to the conical entry of the tubular body, causes the closing means of the tubular body, placing the suction pipe in communication with the network of conduits connected to the central vacuum unit, and the operation of the central vacuum unit.
  • the end cap is attached to one end a rigid tube section, at the other end of which is fixed a pipe flexible.
  • the operator can easily, using this rigid tube section, insert the end piece into the tubular body to commission the unit and remove the tip from the tubular body, at the end of suction.
  • the duct connected to the central vacuum unit is perpendicular to the body tubular, the sealing means thereof being constituted by a piston pushed to its closed position by a spring and sliding between a closed position where it closes the duct connected to the central unit and a retracted position, in which the end piece is at the end of its travel of engagement in the tubular body and ensures the communication of the suction hose with the conduit connected to the central vacuum.
  • the means shutter of the tubular body are constituted by a flap in one or several parts, subjected to the action of a spring keeping it in position closure, each part of which is articulated around an axis perpendicular to the axis of the body, near the end of it located at the level of the wall, so as to be able to tilt towards the inside of the body, when inserting the tip.
  • the means of carrying out control command information operation of the central unit can be operated either by means obturation of the tubular body, piston or flap, either by the end piece itself, at the end of its engagement in the tubular body.
  • the means of angular positioning of the nozzle relative to the tubular body are constituted by a system of complementary grooves-ribs formed respectively in the tubular body and in the end piece.
  • the means for positioning and fixing the end piece in the body tubular are formed by a finger projecting radially towards inside the tubular body and by an axial groove formed in the outer wall of the nozzle from its insertion end into the tubular body, ending in a transverse groove.
  • the attachment of the nozzle in the tubular body is carried out by an axial movement followed by a rotational movement, like a bayonet type fixing.
  • the means for fixing the end piece in the tubular body are constituted by recesses opening transversely into the walls of the body tubular or end piece, in which are intended to engage profiled elements, such as balls, resiliently pushed, and belonging respectively to the end piece or to the tubular body.
  • the socket shown in Figures 1 to 3 is intended to be mounted on the ceiling, and more specifically adapted to a building equipped with 2 tiles of false ceilings.
  • the socket according to the invention comprises a body tubular 3, including one open end, having an insertion cone 4, is fixed by a flange 5 on a slab 2 of false ceiling, in which is formed an opening 6.
  • the tubular body 3 is therefore located in the space between the false ceiling and the cover slab of the local.
  • the tubular body 3 includes an opening sleeve 7 radially close to its lower end, used for connection of a connecting conduit 8 with a central vacuum.
  • the body 3, which is tubular and of circular section, serves as a housing for a piston 9 sliding and pushed towards the free end of the body by a spring 10.
  • the piston 9 takes pressing against a finger 12 located at the free end of the body 3 and closes the conduit 8 connected to the central vacuum.
  • the other end of the body tubular is equipped with a microswitch 13 which is actuated by the piston 9 when the latter is in the retracted position in the body 3, as shown in the figure 3. This microswitch, when activated, controls the setting operation of the central vacuum unit.
  • the suction device also includes a flexible hose 14 fitted, at one of its ends, with a brush, not shown in drawing.
  • the flexible hose is equipped with a section of rigid tube 15, for example metallic, of a few tens of centimeters in length at the other end of which a nozzle 16 is fixed.
  • the tubular endpiece 16 is intended to be engaged in the body 3, in pushing the piston 9 towards the bottom of the latter.
  • the end piece 16 has a radial opening 17 intended to be opposite the duct 8 in the maximum engagement position of the nozzle in the tubular body.
  • the end piece 16 comprises, from its end introduction into the body 3, a longitudinal groove 18 opening in a transverse groove 19. In the non-use position of installation, the body 3 is in the position shown in FIG. 2.
  • the operator takes the rigid tube section 15 and introduces the end piece 16 to inside the tubular body 3 by positioning the groove 18 opposite the finger 12.
  • the operator pivots the end piece inside the body so that the finger 12 is engaged in the groove 19 as far as a end position, in which the opening 17 is opposite of the suction duct 8.
  • the piston 9 is moved to the bottom of the body 3 and actuates the microswitch 13 causing the start-up of the central vacuum unit.
  • the operator does the opposite, first rotating the nozzle relative to the body and then withdrawing it axially.
  • the piston 9 pushed by spring 10 returns to closed closing position the opening of the body as well as the suction duct 8.
  • the microswitch 13 being deactivated stops the central vacuum unit.
  • Figure 4 shows another embodiment of this socket, also mounted in a false ceiling slab 2.
  • the tubular body 23 has a square section, as does the end piece 36.
  • the body 23 is closed by a flap 29 mounted pivoting about an axis horizontal and held in the closed position by a spring 30.
  • the connection 27 for the connection conduit with the central vacuum unit is arranged laterally.
  • a microswitch 33 for controlling the central vacuum unit is arranged laterally in the body 23 and actuated directly by the end piece 36.
  • the end piece 36 has a transverse opening 37 of communication with the central network.
  • the tip 36 is mounted at one end of a rigid tube section 35, itself mounted at one end of a flexible pipe 34.
  • the angular positioning of the nozzle 36 inside the conduit 23 is produced by cooperation a rib 32 that the body has with a groove 38 that has the tip.
  • the locking means consist of two recesses 39 formed in two walls of the end piece 36, in which are intended to come into engagement profiled elements 40 constituted, by example, by balls, pushed elastically inwards, passing through two opposite walls of the tubular body 23.
  • the invention provides a great improvement to the existing technique by providing a hold for the connection of a dust suction hose to an installation centralized suction, simple structure, allowing positioning this grip on the ceiling, which is particularly advantageous, in particular in commercial or office premises, while being of a very practical use for the operator.
  • the invention is not limited only to embodiments of this socket, described above by way of examples, on the contrary, it embraces all its variants. This is how that the opening made in the nozzle to achieve the setting communication of the flexible hose with the conduit connected to the control unit suction could be not transverse to the tip but axial to it or that the means of reporting order information could be constituted not by an electrical contact but by a sensor pneumatic, for example, without leaving the frame of the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Description

La présente invention a pour objet une prise pour le raccordement d'un tuyau d'aspiration de poussières à une installation d'aspiration centralisée.The subject of the present invention is a plug for the connection of a dust extraction hose to a system central vacuum.

Une installation d'aspiration centralisée est composée d'une centrale d'aspiration installée dans un local technique, et de prise d'aspiration installée dans les différentes pièces d'un bâtiment d'habitation de bureaux, ou recevant du public, les prises étant reliées à la centrale d'aspiration par un réseau de conduits lisses.A central vacuum system consists of a central vacuum unit installed in a technical room, and outlet installed in the different rooms of a residential building of offices, or receiving from the public, the sockets being connected to the central suction by a network of smooth ducts.

Les prises d'aspiration servent à relier le réseau de conduits d'aspiration à une brosse servant à aspirer les poussières, cette brosse étant fixée à un tube flexible, dont l'autre extrémité est équipée d'un embout destiné à être introduit dans une prise reliant le tuyau flexible à la centrale d'aspiration et mettant en route cette centrale, par exemple par l'intermédiaire d'un microcontact fixé dans la prise.The suction sockets are used to connect the duct network of suction to a brush used to vacuum dust, this brush being attached to a flexible tube, the other end of which is fitted with a nozzle intended to be inserted into an outlet connecting the flexible pipe to the central vacuum unit and starting up this central unit, for example by via a microswitch fixed in the socket.

Le document FR 1 534 667 concerne une installation d'aspiration centralisée comportant des boítiers de raccordement de tubes flexibles, logés dans les murs du local à équiper. Chaque boítier est fermé par un volet devant être ouvert manuellement avant introduction de l'embout du tube flexible. L'étanchéité à la fermeture est complétée par un obturateur sphérique escamotable en période d'aspiration.Document FR 1,534,667 relates to an installation central vacuum system with tube connection boxes flexible, housed in the walls of the room to be equipped. Each case is closed by a shutter to be opened manually before introduction of the end of the flexible tube. The seal at closing is completed by a retractable spherical shutter during aspiration.

Les prises d'aspiration sont montées soit au sol, soit le plus généralement en partie basse d'une cloison. Ces prises sont généralement recouvertes d'un volet, qu'il convient de faire pivoter vers l'extérieur avant l'engagement de l'embout de liaison du flexible d'aspiration. Un tel agencement présente l'inconvénient de ne pas pouvoir installer de meubles à l'emplacement d'une prise, ce qui est particulièrement dommageable dans les immeubles de bureaux où les déménagements sont fréquents, et où les cloisons de bureaux peuvent être déplacées. En tout état de cause, il convient que les prises d'aspiration soient facilement accessibles par la personne réalisant l'aspiration des poussières. Il serait souhaitable, notamment dans les immeubles de bureaux disposant d'un faux-plafond, de disposer les prises d'aspiration au plafond, de telle sorte que ces prises ne seraient plus gênantes pour des emplacements de meubles ou de cloisons.The suction sockets are mounted either on the floor or the most generally in the lower part of a partition. These sockets are generally covered with a flap, which must be pivoted outwards before the engagement of the connecting piece of the suction hose. Such arrangement has the disadvantage of not being able to install furniture at the location of a socket, which is particularly damaging in office buildings where moves are frequent, and where office partitions can be moved. In any case, the suction ports should be easily accessible through the person performing dust extraction. It would be preferable, especially in office buildings with a false ceiling, to arrange the suction sockets on the ceiling, so that these sockets would no longer be inconvenient for furniture or partitions.

Toutefois, il se pose, dans un tel cas, le problème de l'introduction de l'embout du tuyau flexible dans le corps de la prise. However, there arises, in such a case, the problem of the introduction of the end of the flexible pipe into the body of the socket.

Le but de l'invention est de fournir une prise pour le raccordement d'un tuyau d'aspiration de poussières à une installation d'aspiration centralisée, dans laquelle le corps de la prise puisse être disposé tout aussi bien au sol, dans une paroi murale ou au plafond, tout en permettant une introduction facile et immédiate de l'embout du tuyau flexible dans le corps de la prise et une mise en fonctionnement automatique de l'installation, même si l'opérateur est à une certaine distance du corps de la prise.The object of the invention is to provide a plug for the connection of a dust extraction hose to a system central vacuum, in which the body of the socket can be placed just as well on the floor, in a wall or ceiling, everything allowing easy and immediate insertion of the hose end flexible in the body of the socket and an operation automatic installation, even if the operator is at a certain distance from the body of the socket.

A cet effet, la prise qu'elle concerne, comprend :

  • d'une part, un corps tubulaire monté dans une paroi du local équipé, plafond, mur ou sol, perpendiculairement à cette paroi et présentant, du côté de la paroi, une extrémité ouverte qui, obturée élastiquement avec étanchéité par des moyens escamotables, forme une entrée conique du côté de l'intérieur du local, ce corps tubulaire étant relié par un conduit à la centrale d'aspiration, et comportant un moyen de report d'information de commande de mise en fonctionnement de la centrale, qui est actionné lorsque les moyens d'obturation du corps tubulaire sont en position ouverte, position dans laquelle l'entrée conique (4) n'est pas obturée par lesdits moyens escamotables (9, 29), et
  • d'autre part, un embout tubulaire rigide qui, monté à une extrémité du tuyau d'aspiration de poussières, est destiné à être engagé dans le corps tubulaire, cet embout comportant des moyens de positionnement angulaire et de fixation dans le corps tubulaire, en fin de course d'engagement dans celui-ci, l'embout comportant une ouverture disposée en regard du conduit relié à la centrale d'aspiration, lorsqu'il est en fin de course d'engagement dans le corps tubulaire.
To this end, the outlet it concerns includes:
  • on the one hand, a tubular body mounted in a wall of the equipped room, ceiling, wall or floor, perpendicular to this wall and having, on the side of the wall, an open end which, closed elastically with sealing by retractable means, forms a conical inlet on the interior side of the room, this tubular body being connected by a conduit to the central vacuum unit, and comprising a means of reporting information for controlling the operation of the central unit, which is activated when the shutter means of the tubular body are in the open position, a position in which the conical inlet (4) is not closed by said retractable means (9, 29), and
  • on the other hand, a rigid tubular end piece which, mounted at one end of the dust suction pipe, is intended to be engaged in the tubular body, this end piece comprising means for angular positioning and fixing in the tubular body, in end of engagement travel therein, the end fitting comprising an opening disposed opposite the duct connected to the central vacuum unit, when it is at the end of the engagement travel in the tubular body.

Avantageusement, l'embout est fixé à une extrémité d'un tronçon de tube rigide, à l'autre extrémité duquel est fixé un tuyau flexible.Advantageously, the endpiece is fixed to one end of a section of rigid tube, at the other end of which is fixed a flexible pipe.

Afin de permettre une liaison avec une prise qui n'est pas directement accessible, le tronçon de tube rigide est de longueur réglable étant réalisé à partir de plusieurs éléments rigides assemblés bout à bout ou télescopiques.In order to allow a connection with a socket which is not directly accessible, the rigid tube section is of adjustable length being made from several rigid elements assembled end to end or telescopic.

Le moyen de report d'information de commande de mise en fonctionnement de la centrale est constitué, par exemple, par un contact électrique.The means of carrying out control command information operation of the control unit consists, for example, of a contact electric.

La connexion d'un tuyau d'aspiration à la prise est réalisée par simple engagement de l'embout associé au tuyau dans le corps tubulaire de la prise. Ce mouvement, réalisé aisément en raison de l'entrée conique du corps tubulaire, provoque l'escamotage des moyens d'obturation du corps tubulaire, la mise en communication du tuyau d'aspiration avec le réseau de conduits relié à la centrale d'aspiration, et la mise en fonctionnement de la centrale d'aspiration. Dans la mesure où le corps tubulaire de la prise est situé au plafond, l'embout est fixé à une extrémité d'un tronçon de tube rigide, à l'autre extrémité duquel est fixé un tuyau flexible.The connection of a suction hose to the outlet is made by simple engagement of the nozzle associated with the pipe in the tubular body of the outlet. This movement, easily achieved due to the conical entry of the tubular body, causes the closing means of the tubular body, placing the suction pipe in communication with the network of conduits connected to the central vacuum unit, and the operation of the central vacuum unit. To the extent that the body tubular plug is located on the ceiling, the end cap is attached to one end a rigid tube section, at the other end of which is fixed a pipe flexible.

Si le tronçon de tube rigide fait quelques dizaines de centimètres de longueur, l'opérateur peut facilement, à l'aide de ce tronçon de tube rigide, introduire l'embout dans le corps tubulaire pour réaliser la mise en fonctionnement de la centrale et retirer l'embout du corps tubulaire, en fin d'aspiration.If the rigid tube section is a few tens of centimeters in length, the operator can easily, using this rigid tube section, insert the end piece into the tubular body to commission the unit and remove the tip from the tubular body, at the end of suction.

Suivant une première forme d'exécution de cette prise, le conduit relié à la centrale d'aspiration est perpendiculaire au corps tubulaire, les moyens d'obturation de celui-ci étant constitués par un piston poussé vers sa position de fermeture par un ressort et coulissant entre une position d'obturation où il obture le conduit relié à la centrale et une position escamotée, dans laquelle l'embout est en fin de course d'engagement dans le corps tubulaire et assure la mise en communication du tuyau d'aspiration avec le conduit relié à la centrale d'aspiration.According to a first embodiment of this socket, the duct connected to the central vacuum unit is perpendicular to the body tubular, the sealing means thereof being constituted by a piston pushed to its closed position by a spring and sliding between a closed position where it closes the duct connected to the central unit and a retracted position, in which the end piece is at the end of its travel of engagement in the tubular body and ensures the communication of the suction hose with the conduit connected to the central vacuum.

Suivant une autre forme d'exécution de cette prise, les moyens d'obturation du corps tubulaire sont constitués par un volet en une ou plusieurs parties, soumis à l'action d'un ressort le maintenant en position de fermeture, dont chaque partie est articulée autour d'un axe perpendiculaire à l'axe du corps, à proximité de l'extrémité de celui-ci située au niveau de la paroi, de façon à pouvoir basculer vers l'intérieur du corps, lors de l'introduction de l'embout.According to another embodiment of this socket, the means shutter of the tubular body are constituted by a flap in one or several parts, subjected to the action of a spring keeping it in position closure, each part of which is articulated around an axis perpendicular to the axis of the body, near the end of it located at the level of the wall, so as to be able to tilt towards the inside of the body, when inserting the tip.

Le moyen de report d'information de commande de mise en fonctionnement de la centrale peut être actionné soit par des moyens d'obturation du corps tubulaire, piston ou volet, soit par l'embout lui-même, en fin d'engagement de celui-ci dans le corps tubulaire.The means of carrying out control command information operation of the central unit can be operated either by means obturation of the tubular body, piston or flap, either by the end piece itself, at the end of its engagement in the tubular body.

Suivant une caractéristique de l'invention, les moyens de positionnement angulaire de l'embout par rapport au corps tubulaire sont constitués par un système de rainures-nervures complémentaires ménagées respectivement dans le corps tubulaire et dans l'embout. According to a characteristic of the invention, the means of angular positioning of the nozzle relative to the tubular body are constituted by a system of complementary grooves-ribs formed respectively in the tubular body and in the end piece.

Même si l'embout et le corps tubulaire possèdent une section rectangulaire, il est avantageux de disposer de moyens de positionnement angulaire de l'embout, si l'ouverture de mise en communication du tuyau d'aspiration avec la centrale d'aspiration est ménagée latéralement dans l'embout.Even if the end piece and the tubular body have a cross-section rectangular, it is advantageous to have positioning means angle of the nozzle, if the opening for communication of the pipe with the central vacuum unit is arranged laterally in the mouthpiece.

Dans le cas où le corps et l'embout sont de section circulaire, les moyens de positionnement et de fixation de l'embout dans le corps tubulaire sont constitués par un doigt faisant saillie radialement vers l'intérieur du corps tubulaire et par une rainure axiale ménagée dans la paroi extérieure de l'embout à partir de son extrémité d'introduction dans le corps tubulaire, se terminant par une gorge transversale.In the case where the body and the tip are of circular section, the means for positioning and fixing the end piece in the body tubular are formed by a finger projecting radially towards inside the tubular body and by an axial groove formed in the outer wall of the nozzle from its insertion end into the tubular body, ending in a transverse groove.

La fixation de l'embout dans le corps tubulaire est réalisée par un mouvement axial suivi d'un mouvement de rotation, à la façon d'une fixation de type baïonnette.The attachment of the nozzle in the tubular body is carried out by an axial movement followed by a rotational movement, like a bayonet type fixing.

Suivant une autre forme d'exécution de cette prise, les moyens de fixation de l'embout dans le corps tubulaire sont constitués par des évidements débouchant transversalement dans les parois du corps tubulaire ou de l'embout, dans lesquels sont destinés à venir s'engager des éléments profilés, tels que des billes, poussés élastiquement, et appartenant respectivement à l'embout ou au corps tubulaire.According to another embodiment of this socket, the means for fixing the end piece in the tubular body are constituted by recesses opening transversely into the walls of the body tubular or end piece, in which are intended to engage profiled elements, such as balls, resiliently pushed, and belonging respectively to the end piece or to the tubular body.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemples non limitatifs, deux formes d'exécution de cette prise :

  • Figure 1 est une vue en perspective de cette prise associée à un plafond, en position de raccordement d'un tuyau d'aspiration ;
  • Figures 2 et 3 sont deux vues en coupe longitudinale de cette prise, respectivement avant connexion et après connexion de l'embout de raccordement du tuyau d'aspiration ;
  • Figure 4 est une vue en perspective partiellement arrachée et partiellement en coupe longitudinale d'une seconde forme d'exécution de cette prise, associée à un plafond, en position déconnectée de l'embout de liaison du tuyau d'aspiration.
    • In any case, the invention will be clearly understood with the aid of the description which follows, with reference to the appended schematic drawing showing, by way of nonlimiting examples, two embodiments of this socket:
  • Figure 1 is a perspective view of this outlet associated with a ceiling, in the connection position of a suction pipe;
  • Figures 2 and 3 are two views in longitudinal section of this socket, respectively before connection and after connection of the connecting piece of the suction pipe;
  • Figure 4 is a partially cutaway perspective view partially in longitudinal section of a second embodiment of this socket, associated with a ceiling, in the disconnected position of the connecting piece of the suction pipe.

    • La prise représentée aux figures 1 à 3 est destinée à être montée au plafond, et plus spécialement adaptée à un bâtiment équipé de dalles 2 de faux-plafonds. La prise selon l'invention comprend un corps tubulaire 3, dont une extrémité ouverte, présentant un cône d'introduction 4, est fixée par une collerette 5 sur une dalle 2 de faux-plafond, dans laquelle est ménagée une ouverture 6. Le corps tubulaire 3 est donc situé dans l'espace compris entre le faux-plafond et la dalle de couverture du local. Le corps tubulaire 3 comporte un manchon 7 débouchant radialement à proximité de son extrémité inférieure, servant au raccordement d'un conduit 8 de liaison avec une centrale d'aspiration. Le corps 3, qui est tubulaire et de section circulaire, sert de logement à un piston 9 coulissant et poussé vers l'extrémité libre du corps par un ressort 10.The socket shown in Figures 1 to 3 is intended to be mounted on the ceiling, and more specifically adapted to a building equipped with 2 tiles of false ceilings. The socket according to the invention comprises a body tubular 3, including one open end, having an insertion cone 4, is fixed by a flange 5 on a slab 2 of false ceiling, in which is formed an opening 6. The tubular body 3 is therefore located in the space between the false ceiling and the cover slab of the local. The tubular body 3 includes an opening sleeve 7 radially close to its lower end, used for connection of a connecting conduit 8 with a central vacuum. The body 3, which is tubular and of circular section, serves as a housing for a piston 9 sliding and pushed towards the free end of the body by a spring 10.

    Dans la position représentée à la figure 2, le piston 9 prend appui contre un doigt 12 situé à l'extrémité libre du corps 3 et obture le conduit 8 relié à la centrale d'aspiration. L'autre extrémité du corps tubulaire est équipée d'un microcontact 13 qui est actionné par le piston 9 lorsque celui-ci est en position rentrée dans le corps 3, comme montré à la figure 3. Ce microcontact, lorsqu'il est actionné, commande la mise en fonctionnement de la centrale d'aspiration.In the position shown in Figure 2, the piston 9 takes pressing against a finger 12 located at the free end of the body 3 and closes the conduit 8 connected to the central vacuum. The other end of the body tubular is equipped with a microswitch 13 which is actuated by the piston 9 when the latter is in the retracted position in the body 3, as shown in the figure 3. This microswitch, when activated, controls the setting operation of the central vacuum unit.

    Le dispositif d'aspiration comprend également un tuyau flexible 14 équipé, à l'une de ses extrémités, d'une brosse, non représentée au dessin. A son autre extrémité, le tuyau flexible est équipé d'un tronçon de tube rigide 15, par exemple métallique, de quelques dizaines de centimètres de longueur à l'autre extrémité duquel est fixé un embout 16. L'embout tubulaire 16 est destiné à être engagé dans le corps 3, en poussant le piston 9 vers le fond de celui-ci. L'embout 16 comporte une ouverture radiale 17 destinée à se trouver en regard du conduit d'aspiration 8 en position d'engagement maximal de l'embout dans le corps tubulaire. L'embout 16 comporte, à partir de son extrémité d'introduction dans le corps 3, une rainure longitudinale 18 débouchant dans une gorge transversale 19. En position de non utilisation de l'installation, le corps 3 est dans la position représentée à la figure 2.The suction device also includes a flexible hose 14 fitted, at one of its ends, with a brush, not shown in drawing. At its other end, the flexible hose is equipped with a section of rigid tube 15, for example metallic, of a few tens of centimeters in length at the other end of which a nozzle 16 is fixed. The tubular endpiece 16 is intended to be engaged in the body 3, in pushing the piston 9 towards the bottom of the latter. The end piece 16 has a radial opening 17 intended to be opposite the duct 8 in the maximum engagement position of the nozzle in the tubular body. The end piece 16 comprises, from its end introduction into the body 3, a longitudinal groove 18 opening in a transverse groove 19. In the non-use position of installation, the body 3 is in the position shown in FIG. 2.

    Pour réaliser la mise en marche de la centrale d'aspiration, l'opérateur prend le tronçon de tube rigide 15 et introduit l'embout 16 à l'intérieur du corps tubulaire 3 en positionnant la rainure 18 en regard du doigt 12. En fin de course, l'opérateur fait pivoter l'embout à l'intérieur du corps pour que le doigt 12 soit engagé dans la gorge 19 jusque dans une position de fin de course, dans laquelle l'ouverture 17 se trouve en regard du conduit d'aspiration 8. Au cours de ce mouvement, le piston 9 est déplacé vers le fond du corps 3 et actionne le microcontact 13 provoquant la mise en fonctionnement de la centrale d'aspiration. En fin d'aspiration, l'opérateur procède de façon inverse, en faisant tout d'abord pivoter l'embout relativement au corps puis en retirant celui-ci axialement. Le piston 9 poussé par le ressort 10 revient en position de fermeture obturant l'ouverture du corps ainsi que le conduit d'aspiration 8. Le microcontact 13 étant désactivé arrête la centrale d'aspiration.To start the suction unit, the operator takes the rigid tube section 15 and introduces the end piece 16 to inside the tubular body 3 by positioning the groove 18 opposite the finger 12. At the end of the stroke, the operator pivots the end piece inside the body so that the finger 12 is engaged in the groove 19 as far as a end position, in which the opening 17 is opposite of the suction duct 8. During this movement, the piston 9 is moved to the bottom of the body 3 and actuates the microswitch 13 causing the start-up of the central vacuum unit. At the end of suction, the operator does the opposite, first rotating the nozzle relative to the body and then withdrawing it axially. The piston 9 pushed by spring 10 returns to closed closing position the opening of the body as well as the suction duct 8. The microswitch 13 being deactivated stops the central vacuum unit.

    La figure 4 représente une autre forme d'exécution de cette prise, également montée dans une dalle 2 de faux-plafond. Dans ce cas, le corps tubulaire 23 présente une section carrée, de même que l'embout 36. Le corps 23 est obturé par un volet 29 monté pivotant autour d'un axe horizontal et maintenu en position de fermeture par un ressort 30. Comme dans le cas précédent, le raccordement 27 pour le conduit de liaison avec la centrale d'aspiration est ménagé latéralement. Dans cette forme d'exécution, un microcontact 33 de commande de la centrale d'aspiration est disposé latéralement dans le corps 23 et actionné directement par l'embout 36. L'embout 36 comporte une ouverture transversale 37 de mise en communication avec le réseau de liaison à la centrale. L'embout 36 est monté à une extrémité d'un tronçon de tube rigide 35, lui-même monté à une extrémité d'un tuyau flexible 34. Le positionnement angulaire de l'embout 36 à l'intérieur du conduit 23 est réalisé par coopération d'une nervure 32 que comporte le corps avec une rainure 38 que comporte l'embout. Les moyens de verrouillage sont constitués par deux évidements 39 ménagés dans deux parois de l'embout 36, dans lesquels sont destinés à venir s'engager des éléments profilés 40 constitués, par exemple, par des billes, poussés élastiquement vers l'intérieur, traversant deux parois opposées du corps tubulaire 23.Figure 4 shows another embodiment of this socket, also mounted in a false ceiling slab 2. In this case, the tubular body 23 has a square section, as does the end piece 36. The body 23 is closed by a flap 29 mounted pivoting about an axis horizontal and held in the closed position by a spring 30. As in the previous case, the connection 27 for the connection conduit with the central vacuum unit is arranged laterally. In this form of execution, a microswitch 33 for controlling the central vacuum unit is arranged laterally in the body 23 and actuated directly by the end piece 36. The end piece 36 has a transverse opening 37 of communication with the central network. The tip 36 is mounted at one end of a rigid tube section 35, itself mounted at one end of a flexible pipe 34. The angular positioning of the nozzle 36 inside the conduit 23 is produced by cooperation a rib 32 that the body has with a groove 38 that has the tip. The locking means consist of two recesses 39 formed in two walls of the end piece 36, in which are intended to come into engagement profiled elements 40 constituted, by example, by balls, pushed elastically inwards, passing through two opposite walls of the tubular body 23.

    Le fonctionnement de la prise de figure 4 est le même que celui de la prise de figures 1 à 3 à la différence près qu'il n'y a pas lieu d'effectuer de rotation de l'embout en fin d'engagement de celui-ci à l'intérieur du corps tubulaire.The operation of the socket in Figure 4 is the same as that of taking figures 1 to 3 with the difference that there is no need perform rotation of the nozzle at the end of engagement thereof inside the tubular body.

    Comme il ressort de ce qui précède, l'invention apporte une grande amélioration à la technique existante en fournissant une prise pour le raccordement d'un tuyau d'aspiration de poussières à une installation d'aspiration centralisée, de structure simple, permettant de positionner cette prise au plafond, ce qui est particulièrement avantageux, notamment dans des locaux commerciaux ou de bureaux, tout en étant d'une utilisation très pratique pour l'opérateur.As is apparent from the above, the invention provides a great improvement to the existing technique by providing a hold for the connection of a dust suction hose to an installation centralized suction, simple structure, allowing positioning this grip on the ceiling, which is particularly advantageous, in particular in commercial or office premises, while being of a very practical use for the operator.

    Comme il va de soi, l'invention ne se limite pas aux seules formes d'exécution de cette prise, décrites ci-dessus à titre d'exemples, elle en embrasse au contraire toutes les variantes. C'est ainsi notamment que l'ouverture ménagée dans l'embout pour réaliser la mise en communication du tuyau flexible avec le conduit relié à la centrale d'aspiration pourrait être non pas transversal à l'embout mais axial à celui-ci ou encore que le moyen de report d'information de commande pourrait être constitué non pas par un contact électrique mais par un capteur pneumatique, par exemple, sans que l'on sorte pour autant du cadre de l'invention.It goes without saying that the invention is not limited only to embodiments of this socket, described above by way of examples, on the contrary, it embraces all its variants. This is how that the opening made in the nozzle to achieve the setting communication of the flexible hose with the conduit connected to the control unit suction could be not transverse to the tip but axial to it or that the means of reporting order information could be constituted not by an electrical contact but by a sensor pneumatic, for example, without leaving the frame of the invention.

    Claims (10)

    1. A socket for attaching a vacuum-cleaner pipe to a centralised vacuum installation, characterised In that it comprises:
      on the one hand a tubular body (3, 23) mounted in a partition (2) of the equipped premises, whether ceiling, wall or floor, in a manner perpendicular to this partition and having on the partition side an open end which is closed off resiliently and sealingly by retractable means (9, 29) and forms a conical inlet (4) on the side inside the premises, this tubular body being connected by a duct (8) to the central vacuum system, and having a means of sending an item of information (13, 33) for controlling operation of the central system, this means of sending being actuated when the means of closing off the tubular body are in the open position, in which the single inlet (4) is not closed off by the said retractable means (9, 29), and
      on the other hand a rigid tubular endpiece (16, 36) which Is mounted at one end of the vacuum-cleaner pipe (14, 34) and is intended to engage in the tubular body (3, 23), this endpiece having means of angutarly positioning (12, 18, 32, 38) and fixing (12, 19, 39, 40) it in the tubular body (3, 23) at the end of its engagement travel therein, the endpiece (16, 36) having an opening (17, 37) arranged opposite the duct (8) connected to the central vacuum system when it is at the end of its engagement travel in the tubular body.
    2. A socket according to Claim 1, characterised in that the endpiece (16, 36) is fixed to one end of a section of rigid tube (15, 35), to the other end whereof there is fixed a flexible pipe (14, 34).
    3. A socket according to Claim 2, characterised in that the section of rigid tube (15, 35) is regulable in its length, being made from a plurality of rigid elements assembled end to end or telescopically.
    4. A socket according to any one of Claims 1 to 3, characterised in that the duct (8) connected to the central vacuum system is perpendicular to the tubular body (3), the means of dosing off the latter being in the form of a piston (9) pushed into its closing position by a spring (10) and sliding between a closing-off position, in which it closes off the duct (8) connected to the central system, and a retracted position, in which the endpiece is at the end of its engagement travel in the tubular body (3) and ensures that the vacuum pipe (14) is brought into communication with the duct (8) connected to the central vacuum system.
    5. A socket according to any one of Claims 1 to 3, characterised in that the means of closing off the tubular body (23) are in the form of a flap valve (29) made in one or more parts and subject to the action of a spring keeping It in the closing position, whereof each part is articulated about an axis perpendicular to the axis of the body (23), close to that end thereof located at the partition, to enable it to tilt towards the inside of the body when the endpiece (36) is introduced.
    6. A socket according to any one of Claims 1 to 5, characterised in that the means of sending an item of information (13) for controlling operation of the central system is actuated by the means (9) of dosing off the tubular body (3).
    7. A socket according to any one of Claims 1 to 5, characterised in that the means of sending an Item of information (33) for controlling operation of the central system is actuated by the endpiece (36) at the end of engagement thereof in the tubular body (23).
    8. A socket according to any one of Claims 1 to 7, characterised in that the means of angularly positioning the endpiece with respect to the tubular body are in the form of a system of complementary tongues and grooves (12, 18, 32, 38) made respectively in the tubular body (3, 23) and the endpiece (16, 36).
    9. A socket according to any one of Claims 1 to 8, characterised in that if the body (3) and the endpiece (16) are circular in section the means of positioning and fixing the endpiece (16) in the tubular body (3) are in the form of a finger (12) projecting radially inwards Into the tubular body (3) and an axial groove (18) made in the outside wall of the endpiece (16), starting at its end to be introduced into the tubular body and ending in a transverse channel (19).
    10. A socket according to any one of Claims 1 to 8, characterised in that the means of fixing the endpiece (36) in the tubular body (23) are in the form of recesses (39) opening transversely In the walls of the tubular body (23) or the endpiece (36), in which profiled elements (40) such as resiliently urged balls are intended to come into engagement, these being associated respectively with the endpiece (36) or the tubular body (33).
    EP98420206A 1997-11-18 1998-11-17 Plug-in unit for latching a suction pipe for a vacuum cleaner in a centralized vacuum cleaning installation Expired - Lifetime EP0916301B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9714683A FR2770986B1 (en) 1997-11-18 1997-11-18 TAKE FOR THE CONNECTION OF A DUST SUCTION PIPE TO A CENTRALIZED SUCTION SYSTEM
    FR9714683 1997-11-18

    Publications (2)

    Publication Number Publication Date
    EP0916301A1 EP0916301A1 (en) 1999-05-19
    EP0916301B1 true EP0916301B1 (en) 2003-07-16

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98420206A Expired - Lifetime EP0916301B1 (en) 1997-11-18 1998-11-17 Plug-in unit for latching a suction pipe for a vacuum cleaner in a centralized vacuum cleaning installation

    Country Status (9)

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    US (1) US6143996A (en)
    EP (1) EP0916301B1 (en)
    KR (1) KR19990045394A (en)
    CN (1) CN1122494C (en)
    AU (1) AU754843B2 (en)
    CA (1) CA2251994A1 (en)
    DE (1) DE69816401T2 (en)
    FR (1) FR2770986B1 (en)
    MY (1) MY129532A (en)

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    Publication number Publication date
    DE69816401T2 (en) 2004-05-13
    EP0916301A1 (en) 1999-05-19
    US6143996A (en) 2000-11-07
    DE69816401D1 (en) 2003-08-21
    KR19990045394A (en) 1999-06-25
    CN1219384A (en) 1999-06-16
    CN1122494C (en) 2003-10-01
    FR2770986B1 (en) 1999-12-31
    MY129532A (en) 2007-04-30
    AU754843B2 (en) 2002-11-28
    CA2251994A1 (en) 1999-05-18
    AU9243098A (en) 1999-06-10
    FR2770986A1 (en) 1999-05-21

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