EP2438842A2 - Connection piece with catch element - Google Patents

Connection piece with catch element Download PDF

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Publication number
EP2438842A2
EP2438842A2 EP11174775A EP11174775A EP2438842A2 EP 2438842 A2 EP2438842 A2 EP 2438842A2 EP 11174775 A EP11174775 A EP 11174775A EP 11174775 A EP11174775 A EP 11174775A EP 2438842 A2 EP2438842 A2 EP 2438842A2
Authority
EP
European Patent Office
Prior art keywords
connecting piece
locking
latching
nozzle part
tongue
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.)
Granted
Application number
EP11174775A
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German (de)
French (fr)
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EP2438842A3 (en
EP2438842B1 (en
Inventor
Alexander Flegler
Silvio Hamm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
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Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2438842A2 publication Critical patent/EP2438842A2/en
Publication of EP2438842A3 publication Critical patent/EP2438842A3/en
Application granted granted Critical
Publication of EP2438842B1 publication Critical patent/EP2438842B1/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

Definitions

  • the present invention relates to a connecting piece for a vacuum cleaner, wherein the connecting piece with a suction hose and a suction port of a vacuum cleaner part is connectable, the connecting piece has a first nozzle part, and on the connecting piece a tongue-shaped locking element is arranged, which is movable relative to the connecting piece to against a restoring force of a locking position, in which the connecting piece is fixed by the locking element to the suction port, in an unlocking position, in which the connecting piece of the suction opening is releasable, to be brought.
  • the US script US 2 444 888 A discloses a hose connection releasably connected to a vacuum cleaner housing.
  • a coil spring presses an elastic latching member against a portion of a collet so as to fix the position of a catching portion of the latching member which projects through an opening of the collet.
  • German utility model DE 85 22 551 U1 an arrangement for releasably connecting the connecting piece of a suction hose is disclosed in which a locking device is removably attached to the connecting piece.
  • the locking device has an annular part, on which a spring tab is formed.
  • the German patent application DE 10 2004 038 630 A1 discloses a coupling having a first tubular coupling element, which has a latching groove and a second tubular coupling element, which has two opposite latching lugs which engage in the coupled state of the coupling in the latching groove.
  • a groove flank facing the second coupling element during coupling of the coupling elements has two opposite sections which are elastically movable inwardly due to U-shaped interruptions and thus resulting tongues.
  • a decoupling is prevented when the relative rotational position of the first coupling element and the second coupling element is selected so that the locking lugs do not completely overlap the inwardly movable portions of the groove flank of the locking groove.
  • connection piece should be able to be provided which is easy to produce. Furthermore, it is intended to be able to provide a connecting piece which can be more reliably fixed in a suction opening of a vacuum cleaner part.
  • a connection for a suction air flow between a suction opening of a vacuum cleaner part and a suction hose can be made.
  • the suction hose can e.g. be connected to the connecting piece by gluing, plugging or welding.
  • the connecting piece can be connected to the suction opening of a vacuum cleaner part, in which it can be fixed by the locking element in the locking position.
  • the vacuum cleaner part may e.g. be the housing of the vacuum cleaner, in which the suction air flow can be passed through the suction port to a Staubabscheideisme.
  • the vacuum cleaner part may also be a handle, a suction pipe or a nozzle.
  • a spigot has two openings, so that the suction air, when the connection piece is connected to the vacuum cleaner part, can flow from the suction hose to the suction opening.
  • the latching element can be brought into the unlocking position and into the locking position, that is, it can be moved relative to the first connecting piece part in order to enable the detachable connection between the suction hose and the vacuum cleaner part.
  • the tongue-shaped detent element which can also be referred to as a latching tab, is arranged via its tongue root on the first neck part, wherein the tongue end is movable relative to the first neck part.
  • the tongue end is actuated.
  • the locking element can assume further intermediate positions, in which the connecting piece is likewise fixed by the locking element in the suction opening.
  • a secure fixation of the connecting piece to the suction opening can be achieved in that the restoring force acts according to the invention at least then on the locking element when it has been deflected from the locking position to the unlocked position.
  • the restoring force can namely advantageously be achieved that the latching element without the action of external forces or at a restoring force counteracting resulting force, which is less than Restoring force is in the locked position and secures the connection piece in the suction opening.
  • the inventors have recognized that by a deformable, integrally formed on the locking element spring element, the springback properties of the locking element can be supported in the locking position or even completely taken over to relieve the locking element and thus to achieve a longer life.
  • a locking element with a longer service life can fix the connecting piece advantageously more reliably at the suction opening.
  • the connection piece can be fixed by the spring element even more secure at the suction opening of the vacuum cleaner, since the restoring function of the locking element of the spring element at least partially accepted and thus can be separated from the fixing function of the locking element. This can namely allow a spring element optimized for a reset function.
  • the spring element is integrally formed on the tongue-shaped locking element, the number of parts of the connecting piece can be reduced and thereby the connection piece can be made easier and faster.
  • the spring element and the detent element can be used in a manufacturing step, e.g. by injection molding.
  • the spring element is then integrally formed on the latching element when the spring element and the latching element are made of a uniform material and form a common component, so are in one piece.
  • the spring element is at least in the unlocked position with a second nozzle part in contact.
  • the spring element can be elastically deformed by the fact that the latching element approaches the second nozzle part in a movement from the locking position to the unlocked position.
  • the spring element can be oriented inwards.
  • the Spring element may preferably touch the second neck part in the locking position or a position between the locking position and the unlocked position, wherein it is not yet deformed.
  • the spring element is elastically deformed in the locking position of the latching element. In this way, the restoring force that exerts the spring element on the locking element can be increased.
  • the spring element contacts the second neck part in the locking position, wherein it is not deformed or even has a distance from the second neck part.
  • the locking element is integrally formed on the first nozzle part.
  • the locking element is then integrally formed on the first nozzle part when the locking element and the first nozzle part are made of a single material and form a common component, so are in one piece.
  • the latching element and the first nozzle part in a manufacturing step, e.g. by injection molding, whereby the production of the connecting piece can be further simplified and accelerated.
  • the spring element is tongue-shaped.
  • the spring element is integrally formed on its tongue root on the locking element.
  • a tongue-shaped spring element has a simple geometric shape and can be easily manufactured in the usual manufacturing processes.
  • a latching means is arranged on the latching element, e.g. can be designed as a latching hook.
  • the tongue roots of latching element and spring element are arranged offset to one another.
  • the tongue roots can be arranged at different locations, for example, with respect to the longitudinal extent of the connecting piece.
  • the spring element can advantageously be integrally formed with its tongue root on the latching element such that the spring force acting on the latching element by the spring element can be increased.
  • the tongue root of the spring element is integrally formed on the tongue root of the locking element facing half of the locking element.
  • the tongue-shaped latching element and the tongue-shaped spring element extend, in each case starting from the tongue root, in opposite directions.
  • the extension direction of the tongue-shaped latching element and the tongue-shaped spring element is the direction of the tongue root to the tongue end. The two extension directions, so that they run in opposite directions, do not run parallel but can also form an angle to each other.
  • the first neck part is mounted on a second neck part.
  • the first nozzle part surrounds the second nozzle part at least partially, for example by at least a portion of the first nozzle part may be placed on the second nozzle part, which may lead to a simplified construction of the connecting piece.
  • the first nozzle part can be referred to as an outer nozzle and the second nozzle part as an inner nozzle.
  • At least two locking elements are arranged on the first neck part. Particularly preferably, at least two locking elements are arranged radially opposite to the first nozzle part.
  • An achievable advantage of at least two locking elements is the improved fixation of the connection piece in the suction opening, since higher forces can be absorbed by at least two locking elements.
  • arranged on the locking elements latching means can be made smaller and thus more ergonomic. For example, the radial extent of a latching hook can be reduced, so that it protrudes less far from the latching element and the connecting piece can thereby be easily inserted into the suction port.
  • the connection piece in one embodiment of the invention can also be fixed by a single latching element in the suction opening.
  • the first neck part is formed as a hollow cylinder, and the two locking elements are arranged diametrically opposite one another.
  • Such a first nozzle part can be easily plugged onto a second nozzle part, and allow a secure fixation of the suction opening of a vacuum cleaner part.
  • connection piece has a third nozzle part.
  • the third neck part may e.g. the part of the connecting piece, which is then visible from the outside, when the connection piece is inserted into the suction opening of a vacuum cleaner part.
  • the third nozzle part may also be referred to as the outer body of the connecting piece.
  • a flexible portion is formed on the third nozzle part to prevent kinking of the hose to the connecting piece.
  • This flexible section may e.g. be formed by slots and webs, so that the third nozzle part in the region of the slots and webs can be deformed.
  • the flexible portion is formed at one end of the third neck part, which faces away from the first and / or the second neck part.
  • the third neck part can be formed on the first and / or the second neck part and thereby form a one-piece component therewith.
  • the latching element has an actuating portion which engages in a window of the third connecting piece part.
  • the operating portion By the operating portion, the user can bring the locking element against the restoring force from the locking position to the unlocked position, so that a more comfortable operation for removing the connecting piece of the vacuum cleaner part can be made possible.
  • accidental removal of the third nozzle part can be avoided by the connecting piece.
  • an actuating section is preferably arranged on each of the latching elements. Particularly preferably, each operating portion of each locking element engages in a corresponding window of the third neck part.
  • the first nozzle part is cylindrical.
  • the openings through which the suction air can be guided are particularly preferably arranged on the base surfaces of the cylinder.
  • the locking element is arranged on the lateral surface of the cylindrical first neck part.
  • the present invention makes it possible, with simple structural and cost-effective means, to provide a connecting piece which can enable secure and reliable fixing of the connection piece in the suction opening of a suction nozzle part.
  • the connection piece can be made easily and quickly.
  • Fig. 1 shows a three-piece connector 10 for a vacuum cleaner in a perspective view.
  • a sectional view of the connecting piece 10 entlag the line AA Fig. 1 is in Fig. 2 shown.
  • Fig. 3 is a perspective view of a first nozzle part 11 of the connecting piece 10.
  • the connecting piece 10 has a connection point 17 for a suction hose to which a suction hose can be glued to connect the suction hose to the connection piece. This connection point is located at an opening 21 of a cylindrical second neck part 13.
  • connection nozzle 10 to a suction opening of a vacuum cleaner part, e.g. a vacuum cleaner housing is to connect
  • the cylindrically shaped first nozzle part 11 can be inserted up to a stop 19 in the suction opening of the vacuum cleaner part, so that in the connected to the suction port 10 only a third nozzle part 15 of the connecting piece 10 is visible to the user.
  • a fluid connection for the suction air flow between the suction hose and the vacuum cleaner part can be made, e.g. to guide the dust picked up by a nozzle to the dust collecting unit of the vacuum cleaner.
  • a flexible portion 25 is formed on the third neck part 15.
  • the flexible portion 25 is formed by slots 27 and webs 29, so that the third nozzle part 15 in the region of the flexible portion 25 can be deformed. In this way it can be prevented that the suction hose kinks during use on the connecting piece 10.
  • the first nozzle part 11 is formed as a hollow cylinder and is attached to the likewise formed as a hollow cylinder second nozzle part 13, so that the second nozzle part 13 is enclosed by the first nozzle part 11.
  • the first connecting piece 11 mounted on the second connecting piece 13 is fixed to the second connecting piece 13 by latching connections, which are not shown in the figures.
  • two tongue-shaped locking elements 40 are formed on the first nozzle part 11, which lie diametrically opposite.
  • the integrally formed latching elements 40 can be elastically deformed and moved relative to the first nozzle part 11 in order to be releasable from a locking position in which the connecting piece 10 can be fixed by the latching elements 40 at the suction opening in an unlocking position in which the connecting piece of the suction opening is to be brought.
  • locking hook 41 is formed, which engages in the locking position in a corresponding locking surface on a locking groove on the suction opening to fix the connecting piece 10 to the suction port.
  • the latching hooks 41 are thus at least partially in the corresponding locking groove.
  • the latching hooks 41 are located outside the corresponding latching groove, so that the connecting piece 10 can be released from the suction opening in the unlocking position of the latching elements 40.
  • the locking position is shown in the figures.
  • an elastically deformable, tongue-shaped spring element 50 is integrally formed in each case, which is elastically deformed in the locking position and the unlocking position of the locking element 40.
  • the spring element 50 is in contact with the second neck part 13 in the unlocked position, the locking position and the intermediate positions. If the latching element 40 is brought from the locking position into the unlocked position, the latching element 40 approaches the second connecting piece 13. Therefore, not only the latching element 40, but also the spring element 50 deforms, so that a force has to be expended in order to deform the spring element 50 and thereby bring the latching element 40 into the unlocked position.
  • the locking element 40 can thus be brought against a restoring force of the locking position in the unlocked position, wherein the spring element 50 exerts a part of the restoring force on the locking element 40.
  • the other part of the restoring force arises because the latching element 40 itself is deformed when it is brought from the locking position to the unlocked position.
  • the locking element 40 is elastically deformed in the unlocked position and the positions between the unlocked position and the locking position.
  • the latching element 40 can thus be relieved, since it is no longer necessary to achieve the entire restoring force due to the elastic deformation of the latching element 50.
  • the tongue root 51 of the spring element 50 on the tongue root 47 of the locking element 40 facing half 43 of the locking element 40th formed.
  • the tongue roots 47, 51 of locking element 40 and spring element 50 are thus arranged offset to one another in the axial direction of the connecting piece 10.
  • locking element 40 and spring element 50 extend, in each case from the tongue root 47, 51 to the end of the tongue, in opposite directions.
  • the locking elements 40 each have an actuating portion 45 which can depress a user to bring the locking element 40 in the unlocked position. Since the two locking elements are opposite, the operation of the locking elements 40 via the operating portions 45 is comfortable for the user, since he can squeeze them with one hand.
  • the actuating sections 45 of the two latching elements each engage in a window 31 of the third connecting piece 15.
  • the present invention makes it possible, with simple structural and cost-effective means, to provide a connecting piece which can enable secure and reliable fixing of the connection piece in the suction opening of a suction nozzle part.
  • the connection piece can be made easily and quickly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

The tube (10) has a support part (11) i.e. hollow cylinder, and a tongue-shaped locking element (40) arranged at the support part. The locking element is movable relative to the support part from a locking position in which the tube is fixed at a suction opening to an unlocking position in which the tube is detachable from the suction opening. A spring element is formed as a single piece at the locking element and elastically deformable in the unlocking position of the locking element for exerting a portion of reset force on the locking element.

Description

Gebiet der ErfindungField of the invention

Die vorliegende Erfindung betrifft einen Anschlussstutzen für einen Staubsauger, wobei der Anschlussstutzen mit einem Saugschlauch und einer Saugöffnung eines Staubsaugerteils verbindbar ist, der Anschlussstutzen einen ersten Stutzenteil aufweist, und an dem Anschlussstutzen ein zungenförmiges Rastelement angeordnet ist, das relativ zu dem Anschlussstutzen bewegbar ist, um gegen eine Rückstellkraft von einer Verriegelungsstellung, in welcher der Anschlussstutzen durch das Rastelement an der Saugöffnung fixierbar ist, in eine Entriegelungsstellung, in welcher der Anschlussstutzen von der Saugöffnung lösbar ist, gebracht werden zu können.The present invention relates to a connecting piece for a vacuum cleaner, wherein the connecting piece with a suction hose and a suction port of a vacuum cleaner part is connectable, the connecting piece has a first nozzle part, and on the connecting piece a tongue-shaped locking element is arranged, which is movable relative to the connecting piece to against a restoring force of a locking position, in which the connecting piece is fixed by the locking element to the suction port, in an unlocking position, in which the connecting piece of the suction opening is releasable, to be brought.

Hintergrund der ErfindungBackground of the invention

Die US Schrift US 2 444 888 A offenbart eine Schlauchverbindung, die lösbar mit einem Staubsaugergehäuse verbunden ist. Eine Schraubenfeder drückt ein elastisches Einrastelement so gegen einen Abschnitt einer Klemmhülse, dass die Position eines Fangabschnitts des Einrastelements, welcher durch eine Öffnung der Klemmhülse ragt, festgelegt wird.The US script US 2 444 888 A discloses a hose connection releasably connected to a vacuum cleaner housing. A coil spring presses an elastic latching member against a portion of a collet so as to fix the position of a catching portion of the latching member which projects through an opening of the collet.

In der deutschen Gebrauchsmusterschrift DE 85 22 551 U1 ist eine Anordnung zum lösbaren Verbinden des Anschlussstutzens eines Saugschlauchs offenbart, bei der eine Verriegelungseinrichtung auswechselbar an dem Anschlussstutzen befestigt ist. Die Verriegelungseinrichtung weist einen ringförmigen Teil auf, an dem eine Federlasche angeformt ist.In the German utility model DE 85 22 551 U1 an arrangement for releasably connecting the connecting piece of a suction hose is disclosed in which a locking device is removably attached to the connecting piece. The locking device has an annular part, on which a spring tab is formed.

In der europäischen Patentschrift EP 0803225 B1 ist eine Anordnung zum lösbaren Verbinden eines Saugstutzens beschrieben. Durch ein Verriegelungselement der Anordnung ist der Saugstutzen lösbar mit der Saugöffnung gekoppelt. Das Verriegelungselement weist einen Ringteil auf, an dem zwei radial nach außen vorstehende Rastnocken angeformt sind, die einen an einem Wandteil der Saugöffnung des Staubsaugers angeformten Rastvorsprung untergreifen, sodass der Saugstutzen am Staubsaugergehäuse in der Saugöffnung gehalten wird.In the European patent specification EP 0803225 B1 an arrangement for releasably connecting a suction nozzle is described. By a locking element of Arrangement, the suction nozzle is releasably coupled to the suction port. The locking element has an annular part on which two radially outwardly projecting locking cams are formed, which engage under a formed on a wall portion of the suction opening of the vacuum cleaner latching projection, so that the suction nozzle is held on the vacuum cleaner housing in the suction opening.

Die deutsche Offenlegungsschrift DE 10 2004 038 630 A1 offenbart eine Kupplung mit einem ersten rohrförmigen Kupplungselement, das eine Rastnut aufweist und einem zweiten rohrförmigen Kupplungselement, das zwei gegenüberliegende Rastnasen aufweist, die im gekoppelten Zustand der Kupplung in die Rastnut eingreifen. Eine beim Koppeln der Kupplungselemente dem zweiten Kupplungselement zugewandte Nutflanke weist zwei gegenüberliegende Abschnitte auf, die aufgrund von U-förmigen Unterbrechungen und hierdurch entstehenden Zungen elastisch nach innen bewegbar sind. Eine Entkopplung wird unterbunden, wenn die relative Drehposition vom ersten Kupplungselement und zweiten Kupplungselement so gewählt ist, dass die Rastnasen die nach innen bewegbaren Abschnitte der Nutflanke der Rastnut nicht vollständig überlappen.The German patent application DE 10 2004 038 630 A1 discloses a coupling having a first tubular coupling element, which has a latching groove and a second tubular coupling element, which has two opposite latching lugs which engage in the coupled state of the coupling in the latching groove. A groove flank facing the second coupling element during coupling of the coupling elements has two opposite sections which are elastically movable inwardly due to U-shaped interruptions and thus resulting tongues. A decoupling is prevented when the relative rotational position of the first coupling element and the second coupling element is selected so that the locking lugs do not completely overlap the inwardly movable portions of the groove flank of the locking groove.

Der Erfindung zugrundeliegende AufgabeThe problem underlying the invention

Der Erfindung liegt die Aufgabe zugrunde, einen gegenüber dem Stand der Technik verbesserten Anschlussstutzen für einen Staubsauger bereitzustellen. Insbesondere soll ein Anschlussstutzen bereitgestellt werden können, der leicht herstellbar ist. Des Weiteren soll ein Anschlussstutzen bereitgestellt werden können, der zuverlässiger in einer Saugöffnung eines Staubsaugerteils fixierbar ist.The invention has for its object to provide a comparison with the prior art improved connection piece for a vacuum cleaner. In particular, a connection piece should be able to be provided which is easy to produce. Furthermore, it is intended to be able to provide a connecting piece which can be more reliably fixed in a suction opening of a vacuum cleaner part.

Erfindungsgemäße LösungInventive solution

Die Bezugszeichen in sämtlichen Ansprüchen haben keine einschränkende Wirkung, sondern sollen lediglich deren Lesbarkeit verbessern.The reference numbers in all claims have no limiting effect, but are only intended to improve their readability.

Die Lösung der gestellten Aufgabe gelingt durch einen Anschlussstutzen mit den Merkmalen des Anspruchs 1.The solution of the problem is achieved by a connecting piece with the features of claim 1.

Durch einen Anschlussstutzen kann eine Verbindung für einen Saugluftstrom zwischen einer Saugöffnung eines Staubsaugerteils und einem Saugschlauch hergestellt werden. Hierzu kann der Saugschlauch z.B. mit dem Anschlussstutzen durch Kleben, Stecken oder Schweißen verbunden werden. Um eine lösbare Verbindung zwischen dem Saugschlauch und dem Staubsaugerteil zu ermöglichen, kann der Anschlussstutzen mit der Saugöffnung eines Staubsaugerteils verbunden werden, in welcher er durch das Rastelement in der Verriegelungsstellung fixierbar ist. Das Staubsaugerteil kann z.B. das Gehäuse des Staubsaugers sein, bei dem der Saugluftstrom durch die Saugöffnung zu einer Staubabscheideeinheit geführt werden kann. Das Staubsaugerteil kann aber auch ein Handgriff, ein Saugrohr oder eine Düse sein. Üblicherweise weist ein Anschlussstutzen zwei Öffnungen auf, damit die Saugluft, wenn der Anschlussstutzen mit dem Staubsaugerteil verbunden ist, von dem Saugschlauch zu der Saugöffnung strömen kann.Through a connection piece, a connection for a suction air flow between a suction opening of a vacuum cleaner part and a suction hose can be made. For this purpose, the suction hose can e.g. be connected to the connecting piece by gluing, plugging or welding. In order to enable a releasable connection between the suction hose and the vacuum cleaner part, the connecting piece can be connected to the suction opening of a vacuum cleaner part, in which it can be fixed by the locking element in the locking position. The vacuum cleaner part may e.g. be the housing of the vacuum cleaner, in which the suction air flow can be passed through the suction port to a Staubabscheideeinheit. The vacuum cleaner part may also be a handle, a suction pipe or a nozzle. Typically, a spigot has two openings, so that the suction air, when the connection piece is connected to the vacuum cleaner part, can flow from the suction hose to the suction opening.

Das Rastelement ist in die Entriegelungsstellung und in die Verriegelungsstellung bringbar, kann also relativ zu dem ersten Stutzenteil bewegt werden, um die lösbare Verbindung zwischen dem Saugschlauch und dem Staubsaugerteil zu ermöglichen. Das zungenförmige Rastelement, das auch als Rastlasche bezeichnet werden kann, ist über seine Zungenwurzel an dem ersten Stutzenteil angeordnet, wobei das Zungenende relativ zu dem ersten Stutzenteil bewegbar ist. Um das Rastelement von der Verriegelungsstellung in die Entriegelungsstellung zu bringen, kann z.B. das Zungenende betätigt werden. Zwischen der Verriegelungsstellung und der Entriegelungsstellung kann das Rastelement natürlich weitere Zwischenstellungen annehmen, in welchen der Anschlussstutzen ebenfalls durch das Rastelement in der Saugöffnung fixiert wird.The latching element can be brought into the unlocking position and into the locking position, that is, it can be moved relative to the first connecting piece part in order to enable the detachable connection between the suction hose and the vacuum cleaner part. The tongue-shaped detent element, which can also be referred to as a latching tab, is arranged via its tongue root on the first neck part, wherein the tongue end is movable relative to the first neck part. To bring the locking element from the locking position to the unlocked position, e.g. the tongue end is actuated. Of course, between the locking position and the unlocking position, the locking element can assume further intermediate positions, in which the connecting piece is likewise fixed by the locking element in the suction opening.

Eine sichere Fixierung des Anschlussstutzens an der Saugöffnung kann dadurch erreicht werden, dass die Rückstellkraft erfindungsgemäß zumindest dann auf das Rastelement einwirkt, wenn dieses von der Verriegelungsstellung zu der Entriegelungsstellung ausgelenkt wurde. Durch die Rückstellkraft kann nämlich vorteilhafterweise erreicht werden, dass sich das Rastelement ohne Einwirkung von äußeren Kräften oder bei einer der Rückstellkraft entgegenwirkenden resultierenden Kraft, die geringer als die Rückstellkraft ist, in der Verriegelungsstellung befindet und den Anschlussstutzen in der Saugöffnung sichert.A secure fixation of the connecting piece to the suction opening can be achieved in that the restoring force acts according to the invention at least then on the locking element when it has been deflected from the locking position to the unlocked position. By the restoring force can namely advantageously be achieved that the latching element without the action of external forces or at a restoring force counteracting resulting force, which is less than Restoring force is in the locked position and secures the connection piece in the suction opening.

Die Erfinder haben erkannt, dass durch ein verformbares, an dem Rastelement einstückig angeformtes Federelement die Rückfedereigenschaften des Rastelements in die Verriegelungsstellung unterstützt oder sogar vollständig übernommen werden können, um das Rastelement zu entlasten und so eine höhere Lebensdauer zu erzielen. Ein Rastelement mit einer höheren Lebensdauer kann den Anschlussstutzen vorteilhafterweise zuverlässiger an der Saugöffnung fixieren. Außerdem haben die Erfinder erkannt, dass der Anschlussstutzen durch das Federelement noch sicherer an der Saugöffnung des Staubsaugerteils fixiert werden kann, da die Rückstellfunktion des Rastelements von dem Federelement zumindest zu einem Teil übernommen und somit von der Fixierfunktion des Rastelements getrennt werden kann. Dies kann nämlich ein für eine Rückstellfunktion optimiertes Federelement ermöglichen.The inventors have recognized that by a deformable, integrally formed on the locking element spring element, the springback properties of the locking element can be supported in the locking position or even completely taken over to relieve the locking element and thus to achieve a longer life. A locking element with a longer service life can fix the connecting piece advantageously more reliably at the suction opening. In addition, the inventors have recognized that the connection piece can be fixed by the spring element even more secure at the suction opening of the vacuum cleaner, since the restoring function of the locking element of the spring element at least partially accepted and thus can be separated from the fixing function of the locking element. This can namely allow a spring element optimized for a reset function.

Da das Federelement an das zungenförmige Rastelement einstückig angeformt ist, kann die Teileanzahl des Anschlussstutzens reduziert und dadurch der Anschlussstutzen leichter und schneller hergestellt werden. Das Federelement und das Rastelement können nämlich in einem Herstellungsschritt, z.B. durch Spritzguss, hergestellt werden. Das Federelement ist dann einstückig an dem Rastelement angeformt, wenn das Federelement und das Rastelement aus einem einheitlichen Material gefertigt sind und ein gemeinsames Bauteil bilden, also aus einem Stück sind.Since the spring element is integrally formed on the tongue-shaped locking element, the number of parts of the connecting piece can be reduced and thereby the connection piece can be made easier and faster. Namely, the spring element and the detent element can be used in a manufacturing step, e.g. by injection molding. The spring element is then integrally formed on the latching element when the spring element and the latching element are made of a uniform material and form a common component, so are in one piece.

Bevorzugte Ausgestaltung der ErfindungPreferred embodiment of the invention

Vorteilhafte Aus- und Weiterbildungen, welche einzeln oder in Kombination miteinander eingesetzt werden können, sind Gegenstand der abhängigen Ansprüche.Advantageous embodiments and developments, which can be used individually or in combination with each other, are the subject of the dependent claims.

In einer bevorzugten Ausführung der Erfindung ist das Federelement zumindest in der Entriegelungsstellung mit einem zweiten Stutzenteil in Kontakt. In dieser Ausführung kann das Federelement dadurch elastisch verformt werden, dass sich das Rastelement bei einer Bewegung von der Verriegelungsstellung zu der Entriegelungsstellung dem zweiten Stutzenteil nähert. Hierbei kann das Federelement nach innen orientiert sein. Das Federelement kann vorzugsweise das zweite Stutzenteil in der Verriegelungsstellung oder einer Stellung zwischen der Verriegelungsstellung und der Entriegelungsstellung berühren, wobei es noch nicht verformt ist.In a preferred embodiment of the invention, the spring element is at least in the unlocked position with a second nozzle part in contact. In this embodiment, the spring element can be elastically deformed by the fact that the latching element approaches the second nozzle part in a movement from the locking position to the unlocked position. Here, the spring element can be oriented inwards. The Spring element may preferably touch the second neck part in the locking position or a position between the locking position and the unlocked position, wherein it is not yet deformed.

In einer weiteren bevorzugten Ausführungsform ist das Federelement in der Verriegelungsstellung des Rastelements elastisch verformt. Hierdurch kann die Rückstellkraft, die das Federelement auf das Rastelement ausübt, erhöht werden. In einer alternativen Ausführung hierzu berührt das Federelement das zweite Stutzenteil in der Verriegelungsstellung, wobei es nicht verformt ist oder weist sogar einen Abstand zu dem zweiten Stutzenteil auf.In a further preferred embodiment, the spring element is elastically deformed in the locking position of the latching element. In this way, the restoring force that exerts the spring element on the locking element can be increased. In an alternative embodiment, the spring element contacts the second neck part in the locking position, wherein it is not deformed or even has a distance from the second neck part.

Die Erfindung weiterbildend ist vorzugsweise vorgesehen, dass das Rastelement einstückig an das erste Stutzenteil angeformt ist. Das Rastelement ist dann einstückig an das erste Stutzenteil angeformt, wenn das Rastelement und das erste Stutzenteil aus einem einheitlichen Material gefertigt sind und ein gemeinsames Bauteil bilden, also aus einem Stück sind. Hierdurch können das Rastelement und das erste Stutzenteil in einem Herstellungsschritt, z.B. durch Spritzguss, hergestellt werden, wodurch die Herstellung des Anschlussstutzens noch weiter vereinfacht und beschleunigt werden kann.The invention further development is preferably provided that the locking element is integrally formed on the first nozzle part. The locking element is then integrally formed on the first nozzle part when the locking element and the first nozzle part are made of a single material and form a common component, so are in one piece. In this way, the latching element and the first nozzle part in a manufacturing step, e.g. by injection molding, whereby the production of the connecting piece can be further simplified and accelerated.

In einer Ausführung der Erfindung ist das Federelement zungenförmig ausgebildet. Hierbei ist das Federelement an seiner Zungenwurzel an dem Rastelement angeformt. Ein zungenförmiges Federelement besitzt eine einfache geometrische Form und kann in den gängigen Herstellungsverfahren leicht hergestellt werden. Besonders vorzugsweise ist ein Rastmittel an dem Rastelement angeordnet, das z.B. als Rasthaken ausgebildet sein kann.In one embodiment of the invention, the spring element is tongue-shaped. Here, the spring element is integrally formed on its tongue root on the locking element. A tongue-shaped spring element has a simple geometric shape and can be easily manufactured in the usual manufacturing processes. Particularly preferably, a latching means is arranged on the latching element, e.g. can be designed as a latching hook.

In einer bevorzugten Ausführungsform des Anschlussstutzens sind die Zungenwurzeln von Rastelement und Federelement versetzt zueinander angeordnet. Die Zungenwurzeln können z.B. bezüglich der Längserstreckung des Anschlussstutzens an unterschiedlichen Stellen angeordnet sein. Durch die versetzten Zungenwurzeln kann das Federelement vorteilhafterweise so mit seiner Zungenwurzel an dem Rastelement angeformt sein, dass die Federkraft, die von dem Federelement auf das Rastelement einwirkt, erhöht werden kann. Besonders vorzugsweise ist die Zungenwurzel des Federelements an der der Zungenwurzel des Rastelements zugewandten Hälfte des Rastelements angeformt. Bei einem besonders bevorzugten Anschlussstutzen erstrecken sich das zungenförmige Rastelement und das zungenförmige Federelement, jeweils ausgehend von der Zungenwurzel, in entgegengesetzte Richtungen. Die Erstreckungsrichtung des zungenförmigen Rastelements und des zungenförmigen Federelements ist die Richtung von der Zungenwurzel bis zum Zungenende. Die beiden Erstreckungsrichtungen müssen, damit sie in entgegengesetzte Richtungen verlaufen, nicht parallel verlaufen sondern können auch einen Winkel zueinander einschließen.In a preferred embodiment of the connecting piece, the tongue roots of latching element and spring element are arranged offset to one another. The tongue roots can be arranged at different locations, for example, with respect to the longitudinal extent of the connecting piece. Due to the staggered tongue roots, the spring element can advantageously be integrally formed with its tongue root on the latching element such that the spring force acting on the latching element by the spring element can be increased. Particularly preferably, the tongue root of the spring element is integrally formed on the tongue root of the locking element facing half of the locking element. at In a particularly preferred connection piece, the tongue-shaped latching element and the tongue-shaped spring element extend, in each case starting from the tongue root, in opposite directions. The extension direction of the tongue-shaped latching element and the tongue-shaped spring element is the direction of the tongue root to the tongue end. The two extension directions, so that they run in opposite directions, do not run parallel but can also form an angle to each other.

Erfindungsgemäß ist vorzugsweise vorgesehen, dass das erste Stutzenteil an einem zweiten Stutzenteil montiert ist. Besonders vorzugsweise umgreift das erste Stutzenteil das zweite Stutzenteil zumindest teilweise, wozu z.B. zumindest ein Teil des ersten Stutzenteils auf das zweite Stutzenteil gesteckt sein kann, was zu einer vereinfachten Konstruktion des Anschlussstutzens führen kann. Hierbei kann das erste Stutzenteil als Außenstutzen und das zweite Stutzenteil als Innenstutzen bezeichnet werden.According to the invention, it is preferably provided that the first neck part is mounted on a second neck part. Particularly preferably, the first nozzle part surrounds the second nozzle part at least partially, for example by at least a portion of the first nozzle part may be placed on the second nozzle part, which may lead to a simplified construction of the connecting piece. Here, the first nozzle part can be referred to as an outer nozzle and the second nozzle part as an inner nozzle.

In einer bevorzugten Ausführung der Erfindung sind an dem ersten Stutzenteil zumindest zwei Rastelemente angeordnet. Besonders vorzugsweise sind zumindest zwei Rastelemente radial gegenüberliegend an dem ersten Stutzenteil angeordnet. Ein erreichbarer Vorteil von zumindest zwei Rastelementen ist die verbesserte Fixierung des Anschlussstutzens in der Ansaugöffnung, da von zumindest zwei Rastelementen höhere Kräfte aufgenommen werden können. Außerdem ist erreichbar, dass an den Rastelementen angeordnete Rastmittel kleiner und damit ergonomischer ausgeführt sein können. Beispielsweise kann die radiale Erstreckung eines Rasthakens verringert werden, so dass dieser weniger weit von dem Rastelement absteht und der Anschlussstutzen dadurch leichter in die Ansaugöffnung eingesteckt werden kann. Natürlich kann der Anschlussstutzen in einer Ausführung der Erfindung auch durch ein einziges Rastelement in der Ansaugöffnung fixiert werden.In a preferred embodiment of the invention, at least two locking elements are arranged on the first neck part. Particularly preferably, at least two locking elements are arranged radially opposite to the first nozzle part. An achievable advantage of at least two locking elements is the improved fixation of the connection piece in the suction opening, since higher forces can be absorbed by at least two locking elements. In addition, it can be achieved that arranged on the locking elements latching means can be made smaller and thus more ergonomic. For example, the radial extent of a latching hook can be reduced, so that it protrudes less far from the latching element and the connecting piece can thereby be easily inserted into the suction port. Of course, the connection piece in one embodiment of the invention can also be fixed by a single latching element in the suction opening.

In einer weiteren bevorzugten Ausführungsform ist das erste Stutzenteil als Hohlzylinder ausgebildet, und die beiden Rastelemente sind diametral gegenüberliegend angeordnet. Ein solcher erster Stutzenteil kann leicht auf einen zweiten Stutzenteil gesteckt werden, und eine sichere Fixierung der Saugöffnung eines Staubsaugerteils ermöglichen.In a further preferred embodiment, the first neck part is formed as a hollow cylinder, and the two locking elements are arranged diametrically opposite one another. Such a first nozzle part can be easily plugged onto a second nozzle part, and allow a secure fixation of the suction opening of a vacuum cleaner part.

Die Erfindung weiterbildend ist vorzugsweise vorgesehen, dass der Anschlussstutzen einen dritten Stutzenteil aufweist. Das dritte Stutzenteil kann z.B. das Teil des Anschlussstutzens sein, das dann von außen sichtbar ist, wenn der Anschlussstutzen in die Saugöffnung eines Staubsaugerteils eingeführt ist. Bei einem Anschlussstutzen mit einem ersten, einem zweiten und einem dritten Stutzenteil, also bei einer dreiteiligen Ausführung des Anschlussstutzens, kann das dritte Stutzenteil auch als Außenkörper des Anschlussstutzens bezeichnet werden. Mit Vorteil ist an dem dritten Stutzenteil ein flexibler Abschnitt ausgebildet, um ein Abknicken des Schlauchs an dem Anschlussstutzen zu verhindern. Dieser flexible Abschnitt kann z.B. durch Schlitze und Stege gebildet sein, sodass das dritte Stutzenteil im Bereich der Schlitze und Stege verformt werden kann. Besonders vorzugsweise ist der flexible Abschnitt an einem Ende des dritten Stutzenteils ausgebildet, das dem ersten und/oder dem zweiten Stutzenteil abgewandt ist. Der dritte Stutzenteil kann erfindungsgemäß an dem ersten und/oder dem zweiten Stutzenteil angeformt sein und dadurch mit diesem ein einstückiges Bauteil bilden.The invention further development is preferably provided that the connection piece has a third nozzle part. The third neck part may e.g. the part of the connecting piece, which is then visible from the outside, when the connection piece is inserted into the suction opening of a vacuum cleaner part. In a connecting piece with a first, a second and a third nozzle part, so in a three-part design of the connecting piece, the third nozzle part may also be referred to as the outer body of the connecting piece. Advantageously, a flexible portion is formed on the third nozzle part to prevent kinking of the hose to the connecting piece. This flexible section may e.g. be formed by slots and webs, so that the third nozzle part in the region of the slots and webs can be deformed. Particularly preferably, the flexible portion is formed at one end of the third neck part, which faces away from the first and / or the second neck part. According to the invention, the third neck part can be formed on the first and / or the second neck part and thereby form a one-piece component therewith.

In einer weiteren bevorzugten Ausführungsform weist das Rastelement einen Betätigungsabschnitt auf, der in ein Fenster des dritten Stutzenteils eingreift. Durch den Betätigungsabschnitt kann der Benutzer das Rastelement gegen die Rückstellkraft von der Verriegelungsstellung in die Entriegelungsstellung bringen, sodass eine bequemere Betätigung zum Entfernen des Anschlussstutzens von dem Staubsaugerteil ermöglicht werden kann. Außerdem kann ein versehentliches Entfernen des dritten Stutzenteils von dem Anschlussstutzen vermieden werden. Weist der Anschlussstutzen mehr als ein Rastelement auf, ist vorzugsweise an jedem der Rastelemente ein Betätigungsabschnitt angeordnet. Besonders vorzugsweise greift jeder Betätigungsabschnitt von jedem Rastelement in ein korrespondierendes Fenster des dritten Stutzenteils ein.In a further preferred embodiment, the latching element has an actuating portion which engages in a window of the third connecting piece part. By the operating portion, the user can bring the locking element against the restoring force from the locking position to the unlocked position, so that a more comfortable operation for removing the connecting piece of the vacuum cleaner part can be made possible. In addition, accidental removal of the third nozzle part can be avoided by the connecting piece. If the connecting piece has more than one latching element, an actuating section is preferably arranged on each of the latching elements. Particularly preferably, each operating portion of each locking element engages in a corresponding window of the third neck part.

In einer bevorzugten Ausführung der Erfindung ist das erste Stutzenteil zylinderförmig ausgebildet. Bei einem zylinderförmigen ersten Stutzenteil sind die Öffnungen, durch die die Saugluft geführt werden kann, besonders vorzugsweise an den Grundflächen des Zylinders angeordnet. Besonders vorzugsweise ist das Rastelement an der Mantelfläche des zylinderförmigen ersten Stutzenteils angeordnet.In a preferred embodiment of the invention, the first nozzle part is cylindrical. In the case of a cylindrical first neck part, the openings through which the suction air can be guided are particularly preferably arranged on the base surfaces of the cylinder. Particularly preferably, the locking element is arranged on the lateral surface of the cylindrical first neck part.

Die vorliegende Erfindung ermöglicht mit einfachen konstruktiven und kostengünstigen Mitteln die Bereitstellung eines Anschlussstutzens, der eine sichere und zuverlässige Fixierung des Anschlussstutzens in der Saugöffnung eines Staugsaugerteils ermöglichen kann. Insbesondere kann der Anschlussstutzen einfach und schnell hergestellt werden.The present invention makes it possible, with simple structural and cost-effective means, to provide a connecting piece which can enable secure and reliable fixing of the connection piece in the suction opening of a suction nozzle part. In particular, the connection piece can be made easily and quickly.

Kurzbeschreibung der ZeichnungenBrief description of the drawings

Weitere vorteilhafte Ausgestaltungen werden nachfolgend an Hand von einem in den Zeichnungen dargestellten Ausführungsbeispiels, auf welches die Erfindung jedoch nicht beschränkt ist, näher beschrieben.Further advantageous embodiments will be described in more detail below with reference to an embodiment shown in the drawings, to which the invention is not limited.

Es zeigen schematisch:

  • Fig. 1 einen Anschlussstutzen in einer perspektiven Darstellung;
  • Fig. 2 den Anschlussstutzen in einer Schnittdarstellung entlang der Linie A-A aus Fig. 1;
    und schließlich
  • Fig. 3 einen ersten Stutzenteil des Anschlussstutzens in einer perspektivischen Darstellung.
They show schematically:
  • Fig. 1 a spigot in a perspective view;
  • Fig. 2 the connection piece in a sectional view along the line AA Fig. 1 ;
    and finally
  • Fig. 3 a first nozzle part of the connecting piece in a perspective view.

Ausführliche Beschreibung anhand von einem AusführungsbeispielDetailed description based on one embodiment

Bei der nachfolgenden Beschreibung von einer bevorzugten Ausführungsform der vorliegenden Erfindung bezeichnen gleiche Bezugszeichen gleiche oder vergleichbare Komponenten.In the following description of a preferred embodiment of the present invention, like reference characters designate like or similar components.

Fig. 1 zeigt einen dreiteiligen Anschlussstutzen 10 für einen Staubsauger in einer perspektivischen Darstellung. Eine Schnittdarstellung des Anschlussstutzens 10 entlag der Linie A-A aus Fig. 1 ist in Fig. 2 gezeigt. Fig. 3 ist eine perspektivische Darstellung eines ersten Stutzenteils 11 des Anschlussstutzens 10. Der Anschlussstutzen 10 weist eine Anschlussstelle 17 für einen Saugschlauch auf, an den ein Saugschlauch angeklebt werden kann, um den Saugschlauch mit dem Anschlussstutzen zu verbinden. Diese Anschlussstelle befindet sich an einer Öffnung 21 eines zylindrischen zweiten Stutzenteils 13. Fig. 1 shows a three-piece connector 10 for a vacuum cleaner in a perspective view. A sectional view of the connecting piece 10 entlag the line AA Fig. 1 is in Fig. 2 shown. Fig. 3 is a perspective view of a first nozzle part 11 of the connecting piece 10. The connecting piece 10 has a connection point 17 for a suction hose to which a suction hose can be glued to connect the suction hose to the connection piece. This connection point is located at an opening 21 of a cylindrical second neck part 13.

Um den Anschlusstutzen 10 mit einer Saugöffnung eines Staubsaugerteils, das z.B. ein Staubsaugergehäuse ist, zu verbinden, kann das zylindrisch ausgebildete erste Stutzenteil 11 bis zu einem Anschlag 19 in die Saugöffnung des Staubsaugerteils eingeführt werden, sodass bei dem mit der Saugöffnung verbundenen Anschlussstutzen 10 lediglich ein dritter Stutzenteil 15 des Anschlussstutzens 10 für den Benutzer sichtbar ist. Wenn der Anschlussstutzen 10, der mit dem Saugschlauch verbunden ist, in die Saugöffnung eingeführt ist, kann eine Fluidverbindung für den Saugluftstrom zwischen dem Saugschlauch und dem Staubsaugerteil hergestellt werden, z.B. um den von einer Düse aufgenommenen Staub zu der Staubabscheideeinheit des Staubsaugers zu führen.To connect the connection nozzle 10 to a suction opening of a vacuum cleaner part, e.g. a vacuum cleaner housing is to connect, the cylindrically shaped first nozzle part 11 can be inserted up to a stop 19 in the suction opening of the vacuum cleaner part, so that in the connected to the suction port 10 only a third nozzle part 15 of the connecting piece 10 is visible to the user. When the spigot 10, which is connected to the suction hose, is inserted in the suction port, a fluid connection for the suction air flow between the suction hose and the vacuum cleaner part can be made, e.g. to guide the dust picked up by a nozzle to the dust collecting unit of the vacuum cleaner.

An dem Ende 23 des dritten Stutzenteils 15, das dem ersten 11 und dem zweiten Stutzenteil 13 abgewandt ist, ist an dem dritten Stutzenteil 15 ein flexibler Abschnitt 25 ausgebildet. Der flexible Abschnitt 25 ist durch Schlitze 27 und Stege 29 gebildet, sodass das dritte Stutzenteil 15 im Bereich des flexiblen Abschnitts 25 verformt werden kann. Hierdurch kann verhindert werden, dass der Saugschlauch während der Benutzung an dem Anschlussstutzen 10 abknickt.At the end 23 of the third neck part 15, which faces away from the first 11 and the second neck part 13, a flexible portion 25 is formed on the third neck part 15. The flexible portion 25 is formed by slots 27 and webs 29, so that the third nozzle part 15 in the region of the flexible portion 25 can be deformed. In this way it can be prevented that the suction hose kinks during use on the connecting piece 10.

Das erste Stutzenteil 11 ist als Hohlzylinder ausgebildet und ist auf das ebenfalls als Hohlzylinder ausgebildete zweite Stutzenteil 13 aufgesteckt, so dass das zweite Stutzenteil 13 von dem ersten Stutzenteil 11 umschlossen wird. Das an dem zweiten Stutzenteil 13 montierte erste Stutzenteil 11 wird durch Rastverbindungen, die in den Figuren nicht dargestellt sind an dem zweiten Stutzenteil 13 fixiert. Um den Anschlussstutzen 10 in der Saugöffnung zu fixieren, sind an dem ersten Stutzenteil 11 zwei zungenförmige Rastelemente 40 angeformt, die sich diametral gegenüber liegen. Die einstückig angeformten Rastelemente 40 können elastisch verformt und relativ zu dem ersten Stutzenteil 11 bewegt werden, um von einer Verriegelungsstellung, in welcher der Anschlussstutzen 10 durch die Rastelemente 40 an der Saugöffnung fixierbar ist, in eine Entriegelungsstellung, in welcher der Anschlussstutzen von der Saugöffnung lösbar ist, gebracht werden zu können. An jedem der Rastelemente 40 ist ein als Rastmittel ausgeführter Rasthaken 41 angeformt, der in der Verriegelungsstellung in eine korrespondierende Rastfläche an einer Rastnut an der Saugöffnung eingreift, um den Anschlussstutzen 10 an der Saugöffnung zu fixieren. In der Verriegelungsstellung befinden sich die Rasthaken 41 also zumindest teilweise in der entsprechenden Rastnut. In der Entriegelungsstellung befinden sich die Rasthaken 41 außerhalb der entsprechenden Rastnut, sodass der Anschlussstutzen 10 in der Entriegelungsstellung der Rastelemente 40 von der Saugöffnung lösbar ist. Aus Darstellungsgründen ist in den Figuren lediglich die Verriegelungsstellung gezeigt.The first nozzle part 11 is formed as a hollow cylinder and is attached to the likewise formed as a hollow cylinder second nozzle part 13, so that the second nozzle part 13 is enclosed by the first nozzle part 11. The first connecting piece 11 mounted on the second connecting piece 13 is fixed to the second connecting piece 13 by latching connections, which are not shown in the figures. In order to fix the connecting piece 10 in the suction opening, two tongue-shaped locking elements 40 are formed on the first nozzle part 11, which lie diametrically opposite. The integrally formed latching elements 40 can be elastically deformed and moved relative to the first nozzle part 11 in order to be releasable from a locking position in which the connecting piece 10 can be fixed by the latching elements 40 at the suction opening in an unlocking position in which the connecting piece of the suction opening is to be brought. At each of the locking elements 40 designed as a latching means locking hook 41 is formed, which engages in the locking position in a corresponding locking surface on a locking groove on the suction opening to fix the connecting piece 10 to the suction port. In the locking position, the latching hooks 41 are thus at least partially in the corresponding locking groove. In the unlocked position, the latching hooks 41 are located outside the corresponding latching groove, so that the connecting piece 10 can be released from the suction opening in the unlocking position of the latching elements 40. For reasons of illustration, only the locking position is shown in the figures.

An den zungenförmigen Rastelementen 40 ist jeweils ein elastisch verformbares, zungenförmig ausgebildetes Federelement 50 einstückig angeformt, das in der Verriegelungsstellung und der Entriegelungsstellung des Rastelements 40 elastisch verformt ist. Das Federelement 50 ist mit dem zweiten Stutzenteil 13 in der Entriegelungsstellung, der Verriegelungsstellung sowie den dazwischenliegenden Stellungen in Kontakt. Wird das Rastelement 40 von der Verriegelungsstellung in die Entriegelungsstellung gebracht, nähert sich das Rastelement 40 dem zweiten Stutzenteil 13 an. Deswegen verformt sich hierbei nicht nur das Rastelement 40, sondern ebenfalls das Federelement 50, sodass eine Kraft aufgewendet werden muss, um das Federelement 50 zu verformen und dadurch das Rastelement 40 in die Entriegelungsstellung zu bringen. Das Rastelement 40 kann also gegen eine Rückstellkraft von der Verriegelungsstellung in die Entriegelungsstellung gebracht werden, wobei das Federelement 50 einen Teil der Rückstellkraft auf das Rastelement 40 ausübt. Der andere Teil der Rückstellkraft entsteht dadurch, dass das Rastelement 40 selbst verformt wird, wenn es von der Verriegelungsstellung in die Entriegelungsstellung gebracht wird. Hierbei ist das Rastelement 40 in der Entriegelungsstellung und den Stellungen zwischen der Entriegelungsstellung und der Verriegelungsstellung elastisch verformt. Durch das Federelement 50 kann das Rastelement 40 also entlastet werden, da nicht mehr die gesamte Rückstellkraft durch die elastische Verformung des Rastelements 50 erzielt werden muss.At the tongue-shaped locking elements 40, an elastically deformable, tongue-shaped spring element 50 is integrally formed in each case, which is elastically deformed in the locking position and the unlocking position of the locking element 40. The spring element 50 is in contact with the second neck part 13 in the unlocked position, the locking position and the intermediate positions. If the latching element 40 is brought from the locking position into the unlocked position, the latching element 40 approaches the second connecting piece 13. Therefore, not only the latching element 40, but also the spring element 50 deforms, so that a force has to be expended in order to deform the spring element 50 and thereby bring the latching element 40 into the unlocked position. The locking element 40 can thus be brought against a restoring force of the locking position in the unlocked position, wherein the spring element 50 exerts a part of the restoring force on the locking element 40. The other part of the restoring force arises because the latching element 40 itself is deformed when it is brought from the locking position to the unlocked position. Here, the locking element 40 is elastically deformed in the unlocked position and the positions between the unlocked position and the locking position. By means of the spring element 50, the latching element 40 can thus be relieved, since it is no longer necessary to achieve the entire restoring force due to the elastic deformation of the latching element 50.

Um die Rückstellkraft zu vergrößern, die das Federelement 50 auf das Rastelement 40 ausüben kann, ist die Zungenwurzel 51 des Federelements 50 an der der Zungenwurzel 47 des Rastelements 40 zugewandten Hälfte 43 des Rastelements 40 angeformt. Die Zungenwurzeln 47, 51 von Rastelement 40 und Federelement 50 sind also zueinander in axialer Richtung des Anschlussstutzens 10 versetzt angeordnet. Außerdem erstrecken sich Rastelement 40 und Federelement 50, jeweils ausgehend von der Zungenwurzel 47, 51 bis zum Zungenende, in entgegengesetzte Richtungen.In order to increase the restoring force that can exert the spring element 50 on the locking element 40, the tongue root 51 of the spring element 50 on the tongue root 47 of the locking element 40 facing half 43 of the locking element 40th formed. The tongue roots 47, 51 of locking element 40 and spring element 50 are thus arranged offset to one another in the axial direction of the connecting piece 10. In addition, locking element 40 and spring element 50 extend, in each case from the tongue root 47, 51 to the end of the tongue, in opposite directions.

Die Rastelemente 40 weisen jeweils einen Betätigungsabschnitt 45 auf, die ein Benutzer niederdrücken kann, um das Rastelement 40 in die Entriegelungsstellung zu bringen. Da die beiden Rastelemente sich gegenüberliegen, ist die Betätigung der Rastelemente 40 über die Betätigungsabschnitte 45 angenehm für den Benutzer, da er diese mit einer Hand zusammendrücken kann. Die Betätigungsabschnitte 45 der beiden Rastelemente greifen jeweils in ein Fenster 31 des dritten Stutzenteils 15 ein.The locking elements 40 each have an actuating portion 45 which can depress a user to bring the locking element 40 in the unlocked position. Since the two locking elements are opposite, the operation of the locking elements 40 via the operating portions 45 is comfortable for the user, since he can squeeze them with one hand. The actuating sections 45 of the two latching elements each engage in a window 31 of the third connecting piece 15.

Die vorliegende Erfindung ermöglicht mit einfachen konstruktiven und kostengünstigen Mitteln die Bereitstellung eines Anschlussstutzens, der eine sichere und zuverlässige Fixierung des Anschlussstutzens in der Saugöffnung eines Staugsaugerteils ermöglichen kann. Insbesondere kann der Anschlussstutzen einfach und schnell hergestellt werden.The present invention makes it possible, with simple structural and cost-effective means, to provide a connecting piece which can enable secure and reliable fixing of the connection piece in the suction opening of a suction nozzle part. In particular, the connection piece can be made easily and quickly.

Die in der vorstehenden Beschreibung, den Ansprüchen und den Zeichnungen offenbarten Merkmale können sowohl einzeln als auch in beliebiger Kombination für die Verwirklichung der Erfindung in ihren verschiedenen Ausgestaltungen von Bedeutung sein.The features disclosed in the foregoing description, the claims and the drawings may be of importance both individually and in any combination for the realization of the invention in its various forms.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Anschlussstutzenspigot
1111
erstes Stutzenteilfirst neck part
1313
zweites Stutzenteilsecond neck part
1515
drittes Stutzenteilthird neck part
1717
Anschlussstellejunction
1919
Anschlagattack
2121
Öffnungopening
2323
EndeThe End
2525
flexibler Abschnittflexible section
2727
Schlitzslot
2929
Stegweb
3131
Fensterwindow
4040
Rastelementlocking element
4141
Rasthakenlatch hook
4343
Hälftehalf
4545
BetätigungsabschnitBetätigungsabschnit
4747
ZungenwurzelZungenwurzel
5050
Federelementspring element
5151
ZungenwurzelZungenwurzel

Claims (12)

Anschlussstutzen (10) für einen Staubsauger, wobei der Anschlussstutzen (10) mit einem Saugschlauch und einer Saugöffnung eines Staubsaugerteils verbindbar ist, der Anschlussstutzen (10) einen ersten Stutzenteil (11) aufweist, und an dem ersten Stutzenteil (11) ein zungenförmiges Rastelement (40) angeordnet ist, das relativ zu dem ersten Stutzenteil (11) bewegbar ist, um gegen eine Rückstellkraft von einer Verriegelungsstellung, in welcher der Anschlussstutzen (10) durch das Rastelement (40) an der Saugöffnung fixierbar ist, in eine Entriegelungsstellung, in welcher der Anschlussstutzen (10) von der Saugöffnung lösbar ist, gebracht werden zu können, dadurch gekennzeichnet, dass das Rastelement (40) zungenförmig ausgebildet ist und an dem Rastelement (40) ein elastisch verformbares Federelement (50) einstückig angeformt ist, das zumindest in der Entriegelungsstellung des Rastelements (40) elastisch verformt ist, um zumindest einen Teil der Rückstellkraft auf das Rastelement (40) auszuüben.Connecting piece (10) for a vacuum cleaner, wherein the connecting piece (10) with a suction hose and a suction opening of a vacuum cleaner part is connectable, the connecting piece (10) has a first nozzle part (11), and on the first nozzle part (11) has a tongue-shaped locking element ( 40) is arranged, which is movable relative to the first nozzle part (11) to a restoring force from a locking position, in which the connecting piece (10) by the latching element (40) is fixable to the suction opening, in an unlocking position, in which the connection piece (10) is detachable from the suction opening, can be brought, characterized in that the latching element (40) is tongue-shaped and on the latching element (40) an elastically deformable spring element (50) is integrally formed, at least in the Unlocked position of the locking element (40) is elastically deformed to at least a portion of the restoring force on the locking element ( 40) exercise. Anschlussstutzen (10) nach Anspruch 1, dadurch gekennzeichnet, dass das Federelement (50) zumindest in der Entriegelungsstellung mit einem zweiten Stutzenteil (13) in Kontakt ist.Connecting piece (10) according to claim 1, characterized in that the spring element (50) at least in the unlocked position with a second nozzle part (13) is in contact. Anschlussstutzen (10) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Federelement (50) in der Verriegelungsstellung des Rastelements (40) elastisch verformt ist.Connecting piece (10) according to claim 1 or 2, characterized in that the spring element (50) is elastically deformed in the locking position of the latching element (40). Anschlussstutzen (10) nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Rastelement (40) einstückig an das erste Stutzenteil (11) angeformt ist.Connecting piece (10) according to one of the preceding claims, characterized in that the latching element (40) is integrally formed on the first socket part (11). Anschlussstutzen (10) nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Federelement (50) zungenförmig ausgebildet ist.Connecting piece (10) according to one of the preceding claims, characterized in that the spring element (50) is tongue-shaped. Anschlussstutzen (10) nach Anspruch 5, dadurch gekennzeichnet, dass die Zungenwurzeln (47, 51) von Rastelement (40) und Federelement (50) versetzt zueinander angeordnet sind.Connecting piece (10) according to claim 5, characterized in that the tongue roots (47, 51) of latching element (40) and spring element (50) are arranged offset from one another. Anschlussstutzen (10) nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das erste Stutzenteil (11) an einem zweiten Stutzenteil (13) montiert ist.Connecting piece (10) according to one of the preceding claims, characterized in that the first nozzle part (11) on a second nozzle part (13) is mounted. Anschlussstutzen (10) nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass an dem ersten Stutzenteil (11) zumindest zwei Rastelemente (40) angeordnet sind.Connecting piece (10) according to one of the preceding claims, characterized in that at least two latching elements (40) are arranged on the first socket part (11). Anschlussstutzen (10) nach Anspruch 8, dadurch gekennzeichnet, dass der erste Stutzenteil (11) als Hohlzylinder ausgebildet ist, und die beiden Rastelemente (40) diametral gegenüberliegend angeordnet sind.Connecting piece (10) according to claim 8, characterized in that the first nozzle part (11) is designed as a hollow cylinder, and the two latching elements (40) are arranged diametrically opposite one another. Anschlussstutzen (10) nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Anschlussstutzen (10) einen dritten Stutzenteil (15) aufweist.Connecting piece (10) according to one of the preceding claims, characterized in that the connecting piece (10) has a third nozzle part (15). Anschlussstutzen (10) nach Anspruch 10, dadurch gekennzeichnet, dass das Rastelement (40) einen Betätigungsabschnitt (45) aufweist, der in ein Fenster (31) des dritten Stutzenteils (15) eingreift.Connecting piece (10) according to claim 10, characterized in that the latching element (40) has an actuating portion (45) which engages in a window (31) of the third connecting piece (15). Anschlussstutzen (10) nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das erste Stutzenteil (11) zylinderförmig ausgebildet ist.Connecting piece (10) according to one of the preceding claims, characterized in that the first nozzle part (11) is cylindrical.
EP11174775.4A 2010-08-12 2011-07-21 Connection piece with catch element Active EP2438842B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010039282A DE102010039282A1 (en) 2010-08-12 2010-08-12 Connecting piece with locking element

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EP2438842A2 true EP2438842A2 (en) 2012-04-11
EP2438842A3 EP2438842A3 (en) 2015-08-26
EP2438842B1 EP2438842B1 (en) 2021-09-15

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EP (1) EP2438842B1 (en)
DE (1) DE102010039282A1 (en)

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CN107233050A (en) * 2017-08-08 2017-10-10 苏州欧圣电气工业有限公司 The connection component and dust catcher of dust catcher

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GB2508901B (en) 2012-12-14 2014-11-05 Dyson Technology Ltd Canister vacuum cleaner
GB2525225B (en) * 2014-04-16 2016-09-14 Dyson Technology Ltd Cleaning implement for a vacuum cleaner and cleaning apparatus
EP3545808A1 (en) * 2018-03-26 2019-10-02 HILTI Aktiengesellschaft Hose coupling system for a vacuum cleaner
DE102020122623A1 (en) 2020-08-31 2022-03-03 Miele & Cie. Kg vacuum cleaner

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EP0803225B1 (en) 1996-04-24 2001-11-14 BSH Bosch und Siemens Hausgeräte GmbH Device for detachably coupling a hose connecting piece to the aspirating hole of a vacuum cleaner
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US2444888A (en) 1944-12-12 1948-07-06 H A Douglas Mfg Co Coupling
DE8522551U1 (en) 1985-08-05 1986-12-04 Siemens AG, 1000 Berlin und 8000 München Arrangement for detachably connecting the connection piece of a suction hose in a suction opening provided on the vacuum cleaner housing
EP0803225B1 (en) 1996-04-24 2001-11-14 BSH Bosch und Siemens Hausgeräte GmbH Device for detachably coupling a hose connecting piece to the aspirating hole of a vacuum cleaner
DE102004038630A1 (en) 2004-08-09 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Coupling for connecting a vacuum cleaner hose to a pipe

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GB2525224A (en) * 2014-04-16 2015-10-21 Dyson Technology Ltd Cleaning apparatus
GB2525224B (en) * 2014-04-16 2018-12-26 Dyson Technology Ltd Cleaning apparatus
RU2679590C2 (en) * 2014-04-16 2019-02-11 Дайсон Текнолоджи Лимитед Cleaning device
CN107233050A (en) * 2017-08-08 2017-10-10 苏州欧圣电气工业有限公司 The connection component and dust catcher of dust catcher

Also Published As

Publication number Publication date
DE102010039282A1 (en) 2012-02-16
EP2438842A3 (en) 2015-08-26
EP2438842B1 (en) 2021-09-15

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