EP3016563B1 - Coupling device for suction duct - Google Patents

Coupling device for suction duct Download PDF

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Publication number
EP3016563B1
EP3016563B1 EP14745199.1A EP14745199A EP3016563B1 EP 3016563 B1 EP3016563 B1 EP 3016563B1 EP 14745199 A EP14745199 A EP 14745199A EP 3016563 B1 EP3016563 B1 EP 3016563B1
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EP
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Prior art keywords
male
female
piece
axial stop
resilient means
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EP14745199.1A
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German (de)
French (fr)
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EP3016563A1 (en
Inventor
Donatien Frot
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SEB SA
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SEB SA
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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
    • A47L9/248—Parts, details or accessories of hoses or pipes

Definitions

  • the present invention relates generally to a device for coupling a suction duct for vacuum cleaner.
  • DE102006004427 discloses a vacuum hose especially for a vacuum cleaner having couplings for releasably connecting it to a suction support or accessory chain.
  • the axial locking of the connection is achieved by the stud which engages in the light of the female part.
  • US3239244 describes a connection device for pipes, in particular for connecting two sections of the air duct of a vacuum cleaner, sections such as a flexible pipe and a coupling member, which can be connected to the vacuum cleaner, the surfaces opposite the piping to be connected with annularly extending depressions or indentations located opposite and receiving elements for connecting the pipe sections.
  • the connecting member is releasably inserted into the depressions or indentations through a substantially radial opening, which constitutes a locking member for the inserted position member.
  • DE102008036180 describes a telescopic tube assembly device. It is proposed a clamping sleeve between the associated rotational stops on the outer tube.
  • An object of the present invention is to meet the drawbacks of the prior art mentioned above and in particular, firstly, to provide a reliable coupling device, economical to build and having good ergonomics of use.
  • the male piece and the female piece each comprise at least one angular abutment arranged to engage with each other when the male piece is in the coupling position, so as to block a relative rotation. between the female part and the male part in the coupling position.
  • the user does not have to exert against torque on the device or the vacuum cleaner to maintain the latter: the angular stops provide this function.
  • the device can be controlled by one hand for example, by acting only on the rotating ring.
  • the unlocking of the male part 20, caused by the rotation of the rotary ring 30, creates an axial movement of withdrawal of the male part 20, which is again ejected from the female part 10 by the action of the elastic legs 24.

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

Description

La présente invention concerne de manière générale un dispositif d'accouplement d'un conduit d'aspiration pour aspirateur.The present invention relates generally to a device for coupling a suction duct for vacuum cleaner.

Il est connu dans l'art antérieur des dispositifs d'accouplement de conduits d'aspirateur tel que celui décrit dans le document US2444888 . En contrepartie, ce système présente notamment l'inconvénient de présenter diverses pièces à assembler pour obtenir le mécanisme de verrouillage, si bien que les coûts de fabrication sont élevés. De plus, l'utilisateur doit appuyer sur deux touches distinctes du dispositif pour déverrouiller la pièce mâle, ce qui complique l'opération et donc finalement affecte l'ergonomie d'utilisation de l'aspirateur.It is known in the prior art vacuum cleaner coupling devices such as that described in the document US2444888 . In return, this system has the particular disadvantage of having various parts to assemble to obtain the locking mechanism, so that the manufacturing costs are high. In addition, the user must press two separate keys of the device to unlock the male part, which complicates the operation and thus ultimately affects the ergonomics of use of the vacuum cleaner.

DE102006004427 décrit un tuyau d'aspiration en particulier pour un aspirateur comprenant des raccords pour le connecter de façon libérable à un support d'aspiration ou une chaîne d'accessoire. Le blocage axial de la connexion est réalisé par le plot qui vient s'engager dans la lumière de la partie femelle. DE102006004427 discloses a vacuum hose especially for a vacuum cleaner having couplings for releasably connecting it to a suction support or accessory chain. The axial locking of the connection is achieved by the stud which engages in the light of the female part.

US3239244 décrit un dispositif de raccord pour tuyauteries, notamment pour raccorder deux tronçons du conduit d'air d'un aspirateur, tronçons tels qu'un tuyau flexible et un organe d'accouplement, pouvant être reliés à l'aspirateur, les surfaces en regard des tuyauteries à raccorder comportant des dépressions ou indentations s'étendant annulairement, situées de façon opposée et recevant des éléments destinés à raccorder les tronçons de conduit. L'élément de raccordement est inséré de façon démontable dans les dépressions ou indentations à travers une ouverture essentiellement radiale, qui constitue un organe de verrouillage pour l'élément en position insérée. US3239244 describes a connection device for pipes, in particular for connecting two sections of the air duct of a vacuum cleaner, sections such as a flexible pipe and a coupling member, which can be connected to the vacuum cleaner, the surfaces opposite the piping to be connected with annularly extending depressions or indentations located opposite and receiving elements for connecting the pipe sections. The connecting member is releasably inserted into the depressions or indentations through a substantially radial opening, which constitutes a locking member for the inserted position member.

DE102008036180 décrit un dispositif d'assemblage de tube télescopique. Il est proposé une douille de serrage entre les butées de rotation associées sur le tube extérieur. DE102008036180 describes a telescopic tube assembly device. It is proposed a clamping sleeve between the associated rotational stops on the outer tube.

Un but de la présente invention est de répondre aux inconvénients de l'art antérieur mentionnés ci-dessus et en particulier, tout d'abord, de proposer un dispositif d'accouplement fiable, économique à construire et présentant une bonne ergonomie d'utilisation.An object of the present invention is to meet the drawbacks of the prior art mentioned above and in particular, firstly, to provide a reliable coupling device, economical to build and having good ergonomics of use.

Pour cela un premier aspect de l'invention concerne un dispositif d'accouplement d'un conduit d'aspiration, le dispositif comprenant :

  • une pièce femelle et
  • une pièce mâle agencée pour s'insérer dans la pièce femelle jusqu'à une position d'accouplement, la pièce femelle comprenant au moins une butée axiale femelle, la pièce mâle comprenant au moins une butée axiale mâle agencée pour s'engager et entrer en butée avec la butée axiale femelle et empêcher un mouvement de retrait de la pièce mâle depuis la position d'accouplement,
  • des moyens élastiques liés à l'une de la butée axiale femelle ou de la butée axiale mâle pour la rendre mobile et agencés pour permettre l'engagement et la mise en butée automatique de la butée axiale mâle avec la butée axiale femelle lors d'un mouvement d'insertion de la pièce mâle dans la pièce femelle jusqu'à la position d'accouplement,
caractérisé en ce que le dispositif comprend en outre :
  • au moins une bague rotative comprenant une came angulaire, agencée pour être pivotée depuis une première position où les moyens élastiques sont libres, vers une deuxième position où les moyens élastiques sont contraints par la came angulaire, de sorte que lorsque la pièce mâle est en position d'accouplement, la butée axiale femelle et la butée axiale mâle sont désengagées l'une de l'autre, permettant ainsi un retrait de la pièce mâle hors de la pièce femelle. Le dispositif d'accouplement selon la mise en oeuvre ci-dessus est aisé à commander, puisque le déverrouillage se fait en pivotant une unique bague rotative : l'utilisateur n'a qu'une interface à commander, suivant un seul mouvement pour accoupler la pièce mâle (le mouvement d'insertion selon une direction axiale du conduit d'aspiration) et un seul mouvement pour retirer la pièce mâle (le pivotement de la bague rotative). De plus, le dispositif compte un nombre de composants réduit, ce qui limite les coûts de fabrication.
For this, a first aspect of the invention relates to a device for coupling a suction duct, the device comprising:
  • a female part and
  • a male part arranged to fit into the female part to a coupling position, the female part comprising at least one female axial stop, the male part comprising at least one male axial stop arranged to engage and enter stop with female axial stop and prevent withdrawal movement of the male part from the coupling position,
  • elastic means connected to one of the female axial abutment or the male axial abutment to make it movable and arranged to allow the engagement and the automatic abutment of the male axial abutment with the axial abutment female during a movement of insertion of the male part in the female part to the coupling position,
characterized in that the device further comprises:
  • at least one rotating ring comprising an angular cam, arranged to be pivoted from a first position where the elastic means are free, to a second position where the elastic means are constrained by the angular cam, so that when the male piece is in position coupling, the female axial stop and the male axial stop are disengaged from each other, thus allowing removal of the male piece out of the female part. The coupling device according to the implementation above is easy to control, since the unlocking is done by pivoting a single rotating ring: the user has only one interface to control, in a single movement to couple the male piece (the insertion movement in an axial direction of the suction duct) and a single movement to remove the male piece (the pivoting of the rotating ring). In addition, the device has a reduced number of components, which limits manufacturing costs.

Selon un mode de réalisation, la bague rotative est agencée pour pouvoir :

  • pivoter de la première position vers la deuxième position selon un premier sens de rotation,
  • pivoter de la première position vers une troisième position selon un deuxième sens de rotation opposé au premier sens de rotation,
et lorsque la bague rotative est dans la troisième position, les moyens élastiques sont contraints par la came angulaire, de sorte que lorsque la pièce mâle est en position d'accouplement, la butée axiale femelle et la butée axiale mâle sont désengagées l'une de l'autre, permettant ainsi un retrait de la pièce mâle hors de la pièce femelle. La commande de la bague rotative est particulièrement aisée pour l'utilisateur car le déverrouillage est possible en pivotant la bague rotative dans un sens ou dans un autre, c'est indifférent.According to one embodiment, the rotary ring is arranged to be able to:
  • pivoting from the first position to the second position in a first direction of rotation,
  • pivoting from the first position to a third position in a second direction of rotation opposite to the first direction of rotation,
and when the rotating ring is in the third position, the elastic means are constrained by the angular cam, so that when the male piece is in the coupling position, the female axial stop and the male axial stop are disengaged one of the other, thus allowing removal of the male part out of the female part. The control of the rotary ring is particularly easy for the user because the unlocking is possible by pivoting the rotating ring in one direction or another, it is indifferent.

Selon un mode de réalisation, la pièce mâle et/ou la pièce femelle sont chacune formée par un assemblage de plusieurs composants. Pour faciliter la conception, il peut être intéressant de former des assemblages.According to one embodiment, the male part and / or the female part are each formed by an assembly of several components. To facilitate the design, it can be interesting to form assemblies.

Selon un mode de réalisation, le dispositif comprend des moyens d'éjection agencés pour être commandés par la bague rotative lorsqu'elle est pivotée, et pour créer un effort axial de retrait sur la pièce mâle à partir d'un couple de rotation exercé par la bague rotative, de sorte à provoquer un mouvement de retrait de la pièce mâle depuis la position d'accouplement. L'ergonomie est améliorée car la seule action de déverrouillage provoque l'éjection de la pièce mâle. On peut envisager d'utiliser une came ou un levier pour transformer le couple et/ou mouvement de rotation de la bague rotative en effort et/ou mouvement axial de la pièce mâle.According to one embodiment, the device comprises ejection means arranged to be controlled by the rotating ring when it is pivoted, and to create an axial withdrawal force on the male part from a torque exerted by the rotating ring, so as to cause a withdrawal movement of the male part from the coupling position. The ergonomics are improved because the only unlocking action causes the ejection of the male part. It is conceivable to use a cam or lever to transform the torque and / or rotational movement of the rotating ring into force and / or axial movement of the male part.

Selon un mode de réalisation, la pièce mâle et la pièce femelle comprennent chacune au moins une butée angulaire agencée pour s'engager l'une avec l'autre lorsque la pièce mâle est en position d'accouplement, de sorte à bloquer une rotation relative entre la pièce femelle et la pièce mâle en position d'accouplement. L'utilisateur n'a pas à exercer de contre couple sur le dispositif ou l'aspirateur pour maintenir ces derniers : les butées angulaires assurent cette fonction. Le dispositif peut donc être commandé d'une seule main par exemple, en agissant uniquement sur la bague rotative.According to one embodiment, the male piece and the female piece each comprise at least one angular abutment arranged to engage with each other when the male piece is in the coupling position, so as to block a relative rotation. between the female part and the male part in the coupling position. The user does not have to exert against torque on the device or the vacuum cleaner to maintain the latter: the angular stops provide this function. The device can be controlled by one hand for example, by acting only on the rotating ring.

Selon un mode de réalisation, les butées angulaires comprennent les moyens d'éjection. Le dispositif est simplifié en cumulant les fonctions sur les mêmes pièces.According to one embodiment, the angular stops comprise the ejection means. The device is simplified by combining the functions on the same parts.

Selon un mode de réalisation, les butées angulaires comprennent des dents avec des pentes, sur la pièce mâle et sur la pièce femelle, agencées pour s'imbriquer les unes dans les autres de sorte à offrir le blocage en rotation lorsque la pièce mâle est dans la position d'accouplement, et à provoquer un mouvement axial de retrait de la pièce mâle lors d'un glissement entre les pentes, provoqué par le couple exercé par la bague rotative. Les pentes des dents, qui sont coniques, provoquent un mouvement axial sous l'effet du couple dans une direction tangentielle. On reproduit ainsi une came qui transforme le mouvement et/ou couple rotatif exercé sur la butée axiale liée aux moyens élastiques par la bague rotative en mouvement et/ou effort axial de la pièce mâle.According to one embodiment, the angular stops comprise teeth with slopes, on the male part and on the female part, arranged to fit into each other so as to offer the locking in rotation when the male part is in the coupling position, and to cause an axial movement of withdrawal of the male part during a sliding between the slopes, caused by the torque exerted by the ring press. The slopes of the teeth, which are tapered, cause axial movement under the effect of torque in a tangential direction. A cam is thus reproduced which transforms the rotary movement and / or torque exerted on the axial stop connected to the elastic means by the rotating ring in movement and / or axial force of the male piece.

Selon un mode de réalisation, le dispositif comprend une piste de guidage conique agencée pour déplacer ladite une de la butée axiale femelle ou de la butée axiale mâle liée aux moyens élastiques, lors du mouvement d'insertion de la pièce mâle dans la pièce femelle jusqu'à la position d'accouplement et l'engagement entre la butée axiale femelle et la butée axiale mâle, et ledit mouvement de retrait provoqué par lesdits moyens d'éjection est suffisant pour positionner l'une de la butée axiale femelle ou de la butée axiale mâle liée aux moyens élastiques en regard de la piste de guidage conique. Le retrait de la pièce mâle se fait en deux temps : le mouvement de retrait provoqué par les moyens d'éjection a pour effet de placer la butée axiale (mâle ou femelle) liée aux moyens élastiques face à la piste de guidage conique, et les moyens élastiques encore partiellement contraints vont créer un effort sur la piste de guidage conique pour finir d'éjecter la pièce mâle.According to one embodiment, the device comprises a conical guide track arranged to move said one of the female axial abutment or the male axial abutment linked to the elastic means, during the insertion movement of the male part in the female part until at the coupling position and the engagement between the female axial stop and the male axial stop, and said withdrawal movement caused by said ejection means is sufficient to position one of the female axial abutment or abutment axial male linked to the elastic means facing the conical guide track. The removal of the male part is done in two steps: the withdrawal movement caused by the ejection means has the effect of placing the axial stop (male or female) linked to the elastic means facing the conical guide track, and the resilient means still partially constrained will create a force on the conical guide track to finish ejecting the male part.

Selon un mode de réalisation, ladite une de la butée axiale mâle ou de la butée axiale femelle liée aux moyens élastiques comprend un ergot d'actionnement agencé pour être commandé par la bague rotative, et un ergot de clipsage avec une première portion agencée pour glisser sur la piste de guidage conique lors du mouvement d'insertion et une deuxième portion agencée pour s'engager avec l'autre que ladite une de la butée axiale mâle ou de la butée axiale femelle liée aux moyens élastiques.According to one embodiment, said one of the male axial abutment or the female axial abutment linked to the elastic means comprises an actuating pin arranged to be controlled by the rotary ring, and a clipping lug with a first portion arranged for sliding on the conical guide track during the insertion movement and a second portion arranged to engage with each other that said one of the male axial stop or the female axial stop connected to the elastic means.

Selon un mode de réalisation, l'une de la butée axiale femelle ou de la butée axiale mâle liée aux moyens élastiques est formée par trois surfaces planes mobiles, les moyens élastiques étant constitués par trois pattes élastiques, et l'autre de la butée axiale femelle ou de la butée axiale mâle est une surface plane formant une couronne autour du conduit d'aspiration. On peut envisager d'agencer les trois surfaces planes mobiles à 120° pour augmenter la stabilité de l'assemblage.According to one embodiment, one of the female axial abutment or the male axial abutment linked to the elastic means is formed by three movable flat surfaces, the elastic means being constituted by three elastic tabs, and the other of the axial abutment. female or male axial abutment is a flat surface forming a ring around the suction duct. It is conceivable to arrange the three moving flat surfaces at 120 ° to increase the stability of the assembly.

Selon un mode de réalisation, ladite surface plane formant une couronne est embarquée sur la pièce femelle.According to one embodiment, said flat surface forming a crown is embedded on the female part.

Selon un mode de réalisation, la pièce mâle et la pièce femelle forment chacune une portion du conduit d'aspiration.According to one embodiment, the male piece and the female piece each form a portion of the suction duct.

Selon un mode de réalisation, les moyens élastiques, l'une de la butée axiale femelle ou de la butée axiale mâle liée aux moyens élastiques et la bague rotative sont embarqués sur l'une de la pièce mâle ou de la pièce femelle.According to one embodiment, the elastic means, one of the female axial stop or the male axial stop connected to the elastic means and the rotary ring are embedded on one of the male part or the female part.

Selon un mode de réalisation, la bague rotative est agencée pour pouvoir être commandée manuellement par un utilisateur.According to one embodiment, the rotary ring is arranged to be manually controlled by a user.

Un second aspect de l'invention est un aspirateur comprenant au moins un conduit d'aspiration et au moins un dispositif selon le premier aspect de l'invention.A second aspect of the invention is a vacuum cleaner comprising at least one suction duct and at least one device according to the first aspect of the invention.

On peut envisager d'utiliser le dispositif d'accouplement entre les différents accessoires d'un aspirateur, tels que :

  • le suceur et le tube, télescopique ou non ;
  • le tube télescopique et la crosse ;
  • la crosse et le flexible ;
  • le flexible et l'aspirateur.
One can consider using the coupling device between the various accessories of a vacuum cleaner, such as:
  • the nozzle and the tube, telescopic or not;
  • the telescopic tube and the stick;
  • the butt and the hose;
  • the hose and the vacuum cleaner.

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée qui suit d'un mode de réalisation de l'invention donné à titre d'exemple nullement limitatif et illustré par les dessins annexés, dans lesquels :

  • la figure 1 représente une vue éclatée d'une partie d'un aspirateur comprenant un dispositif d'accouplement selon l'invention, entre un embout de tube flexible et l'aspirateur ;
  • la figure 2 représente un détail de l'embout de la figure 1 ;
  • la figure 3 représente une section partielle de l'aspirateur de la figure 1 ;
  • la figure 4a représente une coupe transversale de l'embout de la figure 1, dans une position de verrouillage ;
  • la figure 4b représente une coupe transversale de l'embout de la figure 1, dans une position de déverrouillage.
Other features and advantages of the present invention will appear more clearly on reading the following detailed description of an embodiment of the invention given by way of non-limiting example and illustrated by the appended drawings, in which:
  • the figure 1 is an exploded view of a part of a vacuum cleaner comprising a coupling device according to the invention, between a flexible tube end and the vacuum cleaner;
  • the figure 2 represents a detail of the tip of the figure 1 ;
  • the figure 3 represents a partial section of the vacuum cleaner of the figure 1 ;
  • the figure 4a represents a cross-section of the tip of the figure 1 in a locking position;
  • the figure 4b represents a cross-section of the tip of the figure 1 , in an unlocking position.

La figure 1 représente une partie d'un aspirateur comprenant un dispositif d'accouplement selon l'invention. Le dispositif d'accouplement comprend d'une part un capot 10a et un plastron 10b formant une pièce femelle 10 et d'autre part un embout 20a formant une pièce mâle 20 portant une bague rotative 30.The figure 1 represents a part of a vacuum cleaner comprising a coupling device according to the invention. The coupling device comprises on the one hand a cover 10a and a front plate 10b forming a female part 10 and, on the other hand, a tip 20a forming a male part 20 carrying a rotary ring 30.

La pièce mâle 20 est agencée pour s'insérer dans la pièce femelle 10 jusqu'à une position d'accouplement, et comme cela sera expliqué ci-dessous, le dispositif d'accouplement est agencé de telle sorte que l'insertion de la pièce mâle 20 dans la pièce femelle 10 conduisant automatiquement à un accouplement verrouillé ne requiert qu'un seul mouvement axial de la part de l'utilisateur, et le déverrouillage puis le retrait de la pièce mâle 20 hors de la pièce femelle 10 ne requièrent qu'un mouvement de rotation de la bague rotative 30 de la part de l'utilisateur.The male part 20 is arranged to fit into the female part 10 to a coupling position, and as will be explained below, the coupling device is arranged so that the insertion of the part male 20 in the female part 10 automatically leading to a locked coupling requires only one axial movement from the user, and unlocking and then removing the male piece 20 out of the female part 10 require only a rotational movement of the rotating ring 30 on the part of the user.

La figure 2 représente une vue partielle de l'embout 20a. Ce dernier comprend trois pattes élastiques 24 avec une extrémité mobile, l'autre extrémité étant reliée au corps de l'embout 20a. Chaque extrémité mobile des pattes élastiques 24 comprend un ergot d'actionnement 22 formé par une portion de cylindre et un ergot de clipsage 23 avec une première portion formée par une surface plane 21 et une deuxième portion de forme conique pour faciliter l'insertion dans la pièce femelle 10.The figure 2 represents a partial view of the tip 20a. The latter comprises three elastic tabs 24 with a movable end, the other end being connected to the body of the nozzle 20a. Each movable end of the elastic tabs 24 comprises an actuating pin 22 formed by a cylinder portion and a clipping lug 23 with a first portion formed by a flat surface 21 and a second portion of conical shape to facilitate insertion into the female part 10.

Comme expliqué à la figure 3 ci-dessous, les surfaces planes 21 sont agencées pour former une butée axiale escamotable afin de s'engager avec une surface plane 11 de la pièce femelle 10, pour verrouiller la pièce mâle 20 dans la pièce femelle 10.As explained in figure 3 below, the planar surfaces 21 are arranged to form a retractable axial abutment in order to engage with a flat surface 11 of the female part 10, for locking the male part 20 in the female part 10.

De plus, l'embout 20a comprend des dents 25 de forme sensiblement conique qui sont agencées pour s'engager dans des dents 15 également coniques de la pièce femelle 10, afin d'empêcher toute rotation de la pièce mâle 20 lorsqu'elle est verrouillée dans la pièce femelle 10. En d'autres termes, les dents 15 et 25 forment des moyens de butée angulaire, lorsque la pièce mâle 20 est accouplée dans la pièce femelle 10.In addition, the tip 20a comprises teeth 25 of substantially conical shape which are arranged to engage in teeth 15 also conical of the female part 10, to prevent rotation of the male part 20 when it is locked. in the female part 10. In other words, the teeth 15 and 25 form angular stop means, when the male part 20 is coupled in the female part 10.

La figure 3 représente une section partielle de la pièce femelle 10, constituée par le capot 10a et le plastron 10b. Une piste de guidage conique 12 est située à l'entrée de l'orifice de la pièce femelle 10 pour guider la pièce mâle 20 lors de son insertion et également contraindre et pousser vers l'intérieur les extrémités mobiles des pattes élastiques 24. En particulier, lors de l'insertion, les ergots de clipsage 23, par l'intermédiaire de leur deuxième portion de forme conique, glissent sur la piste de guidage conique 12, jusqu'à dépasser le diamètre interne de la piste de guidage conique 12. A ce moment, l'élasticité des pattes élastiques 24 force les extrémités mobiles à reprendre leur position initiale, de sorte que les surfaces planes 21 viennent en regard de la surface plane 11 qui est en fait une couronne formant une butée axiale de la pièce femelle 10. Le retrait de la pièce mâle 20 est impossible, elle est donc verrouillée en position dans la pièce femelle 10.The figure 3 represents a partial section of the female part 10, constituted by the cover 10a and the plastron 10b. A conical guide track 12 is located at the inlet of the orifice of the female part 10 to guide the male part 20 during its insertion and also to force and push inward the movable ends of the elastic tabs 24. In particular during the insertion, the clipping lugs 23, via their second conically-shaped portion, slide on the conical guide track 12, up to the inside diameter of the conical guide track 12. A at this moment, the elasticity of the elastic tabs 24 forces the mobile ends to return to their initial position, so that the flat surfaces 21 come opposite the flat surface 11 which is in fact a ring forming an axial abutment of the female part 10 The withdrawal of the male part 20 is impossible, it is locked in position in the female part 10.

Simultanément à ce verrouillage, les dents 25 de l'embout 20a se sont engagées dans les dents 15 (non visibles sur la section de la figure 3, mais visibles sur la figure 1), au besoin en imposant une rotation minime de quelques degrés, et aucun mouvement de rotation de la pièce mâle 20 verrouillée dans la pièce femelle 10 n'est possible, car les butées axiales de chaque pièce sont engagées et interdisent un mouvement axial de la pièce mâle qui serait provoqué par une rotation de cette dernière, en combinaison avec les pentes des dents 25 et 15 des pièces mâle 20 et femelle 10 respectivement.Simultaneously with this locking, the teeth 25 of the endpiece 20a are engaged in the teeth 15 (not visible on the section of the figure 3 but visible on the figure 1 ), if necessary by imposing a minimal rotation of a few degrees, and no rotational movement of the male part 20 locked in the female part 10 is possible because the axial stops of each piece are engaged and prohibit an axial movement of the male piece that would be caused by a rotation of the latter, in combination with the slopes of the teeth 25 and 15 of the male and female parts 20 respectively.

En conclusion, l'insertion et le verrouillage automatique de la pièce mâle 20 dans la pièce femelle 10 ne nécessitent qu'un mouvement axial de la part de l'utilisateur.In conclusion, insertion and automatic locking of the male part 20 in the female part 10 require only axial movement on the part of the user.

La figure 4a représente une coupe transversale de l'embout 20a lorsqu'il est en position verrouillée dans la pièce femelle 10. La bague rotative 30 comprend une came angulaire 31 formée par deux surfaces en pente, en regard des ergots d'actionnement 22 de chaque patte élastique 24. Telles que représentées, les pattes élastiques 24 ne sont pas contraintes, et les ergots d'actionnement 22 et de clipsage 23 sont à une distance radiale nominale de l'axe du conduit, perpendiculaire au plan de coupe. Il s'ensuit que les ergots de clipsage sont en regard de la surface formant la butée axiale de la pièce femelle 10.The figure 4a represents a cross section of the end piece 20a when it is in the locked position in the female part 10. The rotary ring 30 comprises an angular cam 31 formed by two sloping surfaces, facing the actuating lugs 22 of each elastic tab 24. As shown, the elastic tabs 24 are not constrained, and the actuating pins 22 and clipping 23 are at a nominal radial distance from the axis of the duct, perpendicular to the cutting plane. It follows that the clipping lugs are facing the surface forming the axial abutment of the female part 10.

La figure 4b représente une coupe transversale de l'embout 20a lorsque la bague rotative 30 est commandée pour déverrouiller la pièce mâle 20 et la retirer de la pièce femelle 10. A cet effet, la bague rotative 30 a été pivotée par un utilisateur et cette rotation a pour effet, par le biais de la came angulaire 31 glissant sur les ergots d'actionnement 22, de déplacer les extrémités libres des pattes élastiques 24 vers l'axe du conduit. Comme expliqué, les ergots d'actionnement 22 sont déplacés vers le centre du conduit, ainsi que les ergots de clipsage 23, ce qui a pour effet de désengager les butées axiales de la pièce mâle, car les surfaces planes 21 ne sont plus en regard de la surface plane 11.The figure 4b represents a cross section of the end piece 20a when the rotary ring 30 is controlled to unlock the male piece 20 and remove it from the female part 10. For this purpose, the rotating ring 30 has been rotated by a user and this rotation has for effect, through the angular cam 31 sliding on the actuating pins 22, to move the free ends of the elastic tabs 24 towards the axis of the conduit. As explained, the actuating pins 22 are moved towards the center of the duct, as well as the clipping lugs 23, which has the effect of disengaging the axial stops of the male part, since the flat surfaces 21 are no longer facing each other. of the flat surface 11.

Dans le cas représenté sur la figure 4b, la bague rotative 30 a été pivotée dans le sens des aiguilles d'une montre, mais grâce à la forme symétrique de la came angulaire 31, l'utilisateur aurait pu pivoter la bague rotative dans le sens inverse des aiguilles d'une montre et aboutir au même résultat de désengagement des butées axiales de la pièce mâle. L'ergonomie est aussi bien adaptée aux utilisateurs droitiers ou gauchers, car aucun sens de rotation de la bague rotative n'est imposé.In the case shown on the figure 4b the rotating ring 30 has been rotated clockwise, but thanks to the symmetrical shape of the angular cam 31, the user could have rotated the rotary ring counterclockwise and achieve the same result of disengagement axial stops of the male part. Ergonomics is also well suited for right-handed or left-handed users, as no direction of rotation of the rotating ring is imposed.

Il est à noter que l'utilisateur n'agit que sur la bague rotative 30, et n'a pas besoin de maintenir l'embout 20a pour l'empêcher de tourner, car même si une partie du couple de rotation exercée sur la bague rotative 30 par l'utilisateur est transmise à l'embout 20a par l'intermédiaire des ergots d'actionnement, l'embout 20a est bloqué en rotation par les dents 25 de l'embout 20a engagées dans les dents 15 de la pièce femelle 10. Cet effet est obtenu par les dents 15 et 25 coniques lorsque la pièce mâle 20 est verrouillée dans la pièce femelle 10. L'utilisateur n'a qu'à appliquer une rotation à la bague rotative 30.It should be noted that the user only acts on the rotary ring 30, and does not need to hold the tip 20a to prevent it from rotating, because even if a part of the rotational torque exerted on the ring rotating device 30 by the user is transmitted to the end piece 20a via the actuating lugs, the end piece 20a is locked in rotation by the teeth 25 of the endpiece 20a engaged in the teeth 15 of the female part 10 This effect is obtained by the conical teeth 15 and 25 when the male part 20 is locked in the female part 10. The user only has to apply a rotation to the rotary ring 30.

Cependant, dès que la rotation de la bague rotative 30 pousse les surfaces planes 21 suffisamment pour qu'elles ne soient plus en regard de la surface plane 11, alors un mouvement de retrait axial de la pièce mâle 20 est possible, et ce mouvement de retrait est même provoqué par le dispositif lui-même. En effet, les dents 25 de la pièce mâle 20 et les dents 15 de la pièce femelle 10 sont coniques ou en pente, et agissent comme une came qui transforme le couple et/ou le mouvement rotatif de la pièce mâle 20 en effort et/ou mouvement axial de retrait de la pièce mâle 20, si bien que le mouvement de retrait est automatique.However, as soon as the rotation of the rotary ring 30 pushes the flat surfaces 21 sufficiently far so that they are no longer opposite the flat surface 11, then an axial withdrawal movement of the male piece 20 is possible, and this movement of removal is even caused by the device itself. Indeed, the teeth 25 of the male part 20 and the teeth 15 of the female part 10 are conical or sloping, and act as a cam which converts the torque and / or the rotary movement of the male part 20 in effort and / or or axial movement of removal of the male part 20, so that the withdrawal movement is automatic.

De plus, ce mouvement de retrait, prédéterminé par la hauteur des dents 25 de la pièce mâle 20 et celles de la pièce femelle 10, est calculé pour éjecter la pièce mâle 20 de sorte que les ergots de clipsage 23 soient en regard de la piste de guidage conique 12 de la pièce femelle 10. Ainsi, les pattes élastiques 24 qui exercent un effort radial sur la piste de guidage conique 12 créent à leur tour un effort axial sur la pièce mâle 20, de sorte qu'elle est poussée encore un peu plus hors de la pièce femelle 10.In addition, this withdrawal movement, predetermined by the height of the teeth 25 of the male part 20 and those of the female part 10, is calculated to eject the male part 20 so that the clipping lugs 23 are facing the track cone guide 12 of the female part 10. Thus, the resilient tabs 24 which exert a radial force on the conical guide track 12 in turn create an axial force on the male part 20, so that it is pushed further one little more out of the female part 10.

En d'autres termes, le déverrouillage de la pièce mâle 20, provoqué par la rotation de la bague rotative 30, crée un mouvement axial de retrait de la pièce mâle 20, qui est à nouveau éjectée hors de la pièce femelle 10 par l'action des pattes élastiques 24.In other words, the unlocking of the male part 20, caused by the rotation of the rotary ring 30, creates an axial movement of withdrawal of the male part 20, which is again ejected from the female part 10 by the action of the elastic legs 24.

En conclusion, l'accouplement du dispositif peut être réalisé avec un seul mouvement axial de l'utilisateur imposé à la pièce mâle 20 conduisant à un verrouillage automatique, et un seul mouvement rotatif de déverrouillage appliqué par l'utilisateur sur la bague rotative 30 conduisant au déverrouillage et à l'éjection automatique de la pièce mâle, ce qui procure une bonne ergonomie d'utilisation au dispositif.In conclusion, the coupling of the device can be achieved with a single axial movement of the user imposed on the male part 20 leading to an automatic locking, and a single unlocking rotary movement applied by the user on the rotating ring 30 leading unlocking and automatic ejection of the male part, which provides good ergonomics of use to the device.

On comprendra que diverses modifications et/ou améliorations évidentes pour l'homme du métier peuvent être apportées au mode de réalisation de l'invention décrit dans la présente description sans sortir du cadre de l'invention défini par les revendications annexées.It will be understood that various modifications and / or improvements obvious to those skilled in the art can be made to the embodiment of the invention described in the present description without departing from the scope of the invention defined by the appended claims.

Claims (14)

  1. Device for coupling a suction pipe, the device comprising:
    - a female piece (10), and
    - a male piece (20) arranged to be inserted in the female piece (10) to a coupling position, the female piece (10) comprising at least one female axial stop, the male piece (20) comprising at least one male axial stop arranged to engage and come into abutment with the female axial stop and prevent a movement of withdrawal of the male piece (20) from the coupling position,
    - resilient means connected to either the female axial stop or the male axial stop in order to make it movable and arranged to allow the engagement and the automatic putting of the male axial stop in abutment with the female axial stop during a movement of insertion of the male piece (20) in the female piece (10) to the coupling position, characterised in that the device further comprises:
    - at least one rotary ring (30) comprising an angular cam (31), arranged to be pivoted from a first position in which the resilient means are free, to a second position in which the resilient means are constrained by the angular cam (31), so that, when the male piece (20) is in the coupling position, the female axial stop and the male axial stop are disengaged from one another, thus allowing a withdrawal of the male piece (20) out of the female piece (10).
  2. Device according to the preceding claim, characterised in that the rotary ring (30) is arranged so as to be able:
    - to pivot from the first position to the second position in a first rotation direction,
    - to pivot from the first position to a third position in a second rotation direction opposite the first rotation direction,
    and in that, when the rotary ring is in the third position, the resilient means are constrained by the angular cam (31), so that, when the male piece (20) is in the coupling position, the female axial stop and the male axial stop are disengaged from one another, thus allowing a withdrawal of the male piece (20) out of the female piece (10).
  3. Device according to any of the preceding claims, characterised in that it comprises ejection means arranged to be controlled by the rotary ring (30) when it is pivoted, and to create an axial withdrawal force on the male piece (20) from a rotation torque exerted by the rotary ring (30), so as to cause a movement of withdrawal of the male piece (20) from the coupling position.
  4. Device according to any of the preceding claims, characterised in that the male piece (20) and the female piece (10) each comprise at least one angular stop arranged to engage with one another when the male piece (20) is in the coupling position, so as to block any relative rotation between the female piece (10) and the male piece (20) in the coupling position.
  5. Device according to the preceding claim in its dependency on claim 3, characterised in that the angular stops comprise the ejection means.
  6. Device according to the preceding claim, characterised in that the angular stops comprise teeth (15, 25) with slopes, on the male piece (20) and on the female piece (10), arranged so as to interlock with each other so as to offer the rotational blocking when the male piece (20) is in the coupling position, and to cause an axial movement of withdrawal of the male piece (20) when there is sliding between the slopes, caused by the torque exerted by the rotary ring (30).
  7. Device according to any of claims 3 to 6, characterised in that it comprises a conical guidance track (12) arranged to move said at least either of the female axial stop or the male axial stop connected to the resilient means, during the movement of insertion of the male piece (20) in the female piece (10) to the coupling position and the engagement between the female axial stop and the male axial stop, and in that said withdrawal movement caused by said ejection means is sufficient to position either the female axial stop or the male axial stop connected to the resilient means facing the conical guidance track (12).
  8. Device according to the preceding claim, characterised in that said either of the male axial stop or female axial stop connected to the resilient means comprises an actuating lug (22) arranged to be controlled by the rotary ring (30), and a snapping-on lug (23) with a first portion arranged to slide on the conical guidance track during the insertion movement and a second portion arranged to engage with whichever of said male axial stop or female axial stop is not connected to the resilient means.
  9. Device according to the preceding claim, characterised in that either the female axial stop or the male axial stop connected to the resilient means is formed by three movable planar surfaces (21), the resilient means being formed by three resilient tabs (24), and the other female axial stop or male axial stop is a planar surface (11) forming a ring around the suction pipe.
  10. Device according to the preceding claim, characterised in that said planar surface (11) forming a ring is fitted on the female piece (10).
  11. Device according to any of the preceding claims, characterised in that the male piece (20) and the female piece (10) each form a portion of the suction pipe.
  12. Device according to any of the preceding claims, characterised in that the resilient means, either the female axial stop or the male axial stop connected to the resilient means and the rotary ring (30) are fitted on either the male piece (20) or the female piece (10).
  13. Device according to any of the preceding claims, characterised in that the rotary ring (30) is arranged to be able to be controlled manually by a user.
  14. Vacuum cleaner comprising at least one suction pipe and at least one device according to any of the preceding claims.
EP14745199.1A 2013-07-03 2014-07-01 Coupling device for suction duct Active EP3016563B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1356473A FR3007960B1 (en) 2013-07-03 2013-07-03 SUCTION DRIVE COUPLING DEVICE
PCT/FR2014/051692 WO2015001253A1 (en) 2013-07-03 2014-07-01 Coupling device for suction duct

Publications (2)

Publication Number Publication Date
EP3016563A1 EP3016563A1 (en) 2016-05-11
EP3016563B1 true EP3016563B1 (en) 2019-04-03

Family

ID=49111467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14745199.1A Active EP3016563B1 (en) 2013-07-03 2014-07-01 Coupling device for suction duct

Country Status (5)

Country Link
EP (1) EP3016563B1 (en)
CN (1) CN205433570U (en)
ES (1) ES2722403T3 (en)
FR (1) FR3007960B1 (en)
WO (1) WO2015001253A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3378301B1 (en) * 2017-03-23 2020-01-01 Kverneland AS Agricultural distributor comprising a hose connecting device for a system for transporting a gas stream

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL294109A (en) * 1962-06-15
GB2409403B (en) * 2003-12-23 2006-12-27 Techtronic Ind Co Ltd Suction cleaners
DE102006004427A1 (en) * 2006-01-31 2007-08-02 BSH Bosch und Siemens Hausgeräte GmbH Suction hose especially for a vacuum cleaner has coupling ring on hose with sprung notches to engage reversibly with receiver of support or handgrip
DE102008036180A1 (en) * 2007-09-01 2009-03-05 Vorwerk & Co. Interholding Gmbh Telescopic pipe for vacuum cleaner has clamping sleeve which is rotatable by less than 360 degrees between associated rotation stops on outer tube, with fixing sections provided in radial space between inner and outer tubes
DE102008041234A1 (en) * 2008-08-13 2010-02-25 BSH Bosch und Siemens Hausgeräte GmbH vacuum cleaner housing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3016563A1 (en) 2016-05-11
FR3007960A1 (en) 2015-01-09
FR3007960B1 (en) 2015-08-28
CN205433570U (en) 2016-08-10
WO2015001253A1 (en) 2015-01-08
ES2722403T3 (en) 2019-08-09

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