EP2417889B1 - Tubulure de raccordement dotée d'élément de ressort - Google Patents

Tubulure de raccordement dotée d'élément de ressort Download PDF

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Publication number
EP2417889B1
EP2417889B1 EP11174970.1A EP11174970A EP2417889B1 EP 2417889 B1 EP2417889 B1 EP 2417889B1 EP 11174970 A EP11174970 A EP 11174970A EP 2417889 B1 EP2417889 B1 EP 2417889B1
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EP
European Patent Office
Prior art keywords
spring element
connection pipe
latching
connecting piece
latching element
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.)
Active
Application number
EP11174970.1A
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German (de)
English (en)
Other versions
EP2417889A3 (fr
EP2417889A2 (fr
Inventor
Silvio Hamm
Martin Storath
Christian Ullrich
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 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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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2417889A2 publication Critical patent/EP2417889A2/fr
Publication of EP2417889A3 publication Critical patent/EP2417889A3/fr
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Publication of EP2417889B1 publication Critical patent/EP2417889B1/fr
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Classifications

    • 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

  • connection piece for a vacuum cleaner
  • the connection piece can be connected to a suction hose and a suction opening of a vacuum cleaner part, and has a free cross section through which the suction air flow of the vacuum cleaner can flow, and a latching element and a spring element are arranged on the connection piece, and the spring element can exert a restoring force on the latching element in order to move the latching element from an unlocked position, in which the connecting piece can be released from the suction opening, into a locking position, in which the connecting piece can be fixed to the suction opening by the locking element.
  • U.S. 2,444,888 A discloses a hose connection releasably connected to a vacuum cleaner body.
  • a coil spring urges a resilient latch member against a portion of a ferrule to fix the position of a catch portion of the latch member protruding through an opening of the ferrule.
  • a coupling sleeve for the detachable connection of a suction hose to a vacuum cleaner housing in which one sleeve end is designed for the fixed attachment of the suction hose and the other sleeve end is designed for insertion into a complementary receiving recess of the housing.
  • the coupling sleeve is made up of two separately injection molded parts, namely a tubular outer part and a tubular inner part.
  • the suction hose is firmly connected to the coupling sleeve by an applied adhesive, whereby the adhesive simultaneously connects the outer part and inner part firmly to one another.
  • Elastically bendable latching tongues formed on the wall of the outer part are each supported with pretension on a stationary bearing projection in the coupling sleeve.
  • the height of the support projections is such that they support the latching tongues with pretension, as a result of which the latching tongues experience a slight outward elastic bending deformation.
  • the suction nozzle is detachably coupled to the suction opening by a locking element of the arrangement.
  • the locking element has a ring part on which two radially outwardly projecting locking cams are formed, which engage under a locking projection formed on a wall part of the suction opening of the vacuum cleaner, so that the suction socket on the vacuum cleaner housing is held in the suction opening.
  • a releasable coupling for vacuum cleaner lines preferably freely rotatable about their axis, is known, which is provided with a locking device which engages automatically when the line parts are coupled together, the locking members of which, which are directly under spring action, prevent unintentional loosening of the coupling parts during operation and with a locking device serving to trigger the locking device, the cable enclosing, sliding decoupling sleeve. is provided.
  • individual concentrically movable sleeves which are prestressed by means of a spiral spring arranged in between, are displaced in the direction of the longitudinal axis in such a way that coupling and decoupling of the locking members enables coupling and decoupling of the vacuum cleaner line with the vacuum cleaner.
  • German Offenlegungsschrift disclosed DE 10 2004 038 630 A1 a coupling with a first tubular coupling element which has a locking groove and a second tubular coupling element which has two opposite locking lugs which engage in the locking groove in the coupled state of the coupling.
  • a groove flank facing the second coupling element when the coupling elements are coupled has two opposing sections which, due to U-shaped Interruptions and the resulting tongues are elastically movable inwards. Decoupling is prevented if the relative rotational position of the first coupling element and the second coupling element is selected in such a way that the locking lugs do not completely overlap the inwardly movable sections of the groove flank of the locking groove.
  • the object of the invention is to provide a connecting piece that is improved compared to the prior art.
  • Connection piece can be provided.
  • the spring element should be easy to mount on the connection piece.
  • a connection piece can be used to establish a connection for a suction air flow between a suction opening of a vacuum cleaner part and a suction hose.
  • the vacuum cleaner part can, for example, be the housing of the vacuum cleaner, in which the suction air flow can be guided through the suction opening to a dust separation unit.
  • the vacuum cleaner part can also be a handle, a suction pipe or a nozzle.
  • a connecting piece usually has two openings so that the suction air can flow from the suction hose to the suction opening when the connecting piece is connected to the vacuum cleaner part.
  • the free cross-section is the partial area or partial area of the cross-section of the connecting piece through which the suction air can flow.
  • the free cross-section can be determined, for example, by a socket part or the suction hose.
  • the latching element can be brought into the unlocked position and into the locked position, that is to say it can be moved relative to the connecting piece in order to enable a detachable connection between the suction hose and the vacuum cleaner part. Between the locking position and the unlocking position, the latching element can of course assume further intermediate positions, in which the connecting piece is likewise fixed in the suction opening by the latching element.
  • a more secure fixation of the connecting piece on the suction opening can be achieved by the spring element. It is namely achievable that the restoring force that can be exerted by the spring element must be overcome in any case to bring the locking element into the unlocked position and to detach the connecting piece from the suction opening.
  • the connecting piece can be simplified by a spring element which at least partially encloses the free cross section.
  • the spring element can advantageously be supported without additional structural measures in order to exert the restoring force.
  • the spring element can be supported on opposite sides of the connecting piece, on a latching element and an opposite side or on opposite latching elements.
  • the spring element can be easily mounted on the connecting piece, since it does not have to be screwed or glued to the connecting piece, for example.
  • the spring element then at least partially encloses the free cross section when the spring element encloses more than half of the peripheral line of the free cross section.
  • the spring element can extend from at least one side of the connecting piece to the opposite side.
  • the peripheral line of the free cross section is the edge that determines the partial area or partial area of the cross section of the connecting piece through which the suction air can flow.
  • the spring element is designed in such a way that it deforms elastically and exerts a restoring force acting radially outwards on the latching element. Due to the restoring force of the spring element, the locking element can be brought back from the unlocked position back into the locked position by the spring element after a user has released it again after it has been pressed together.
  • the design of the connecting piece can also be simplified by the locking element according to the invention because the spring element can also exert a restoring force on several locking elements. It is therefore achievable that even in the case of a connecting piece with more than one latching element, only one spring element is required in order to bring the latching elements into the locking position. Of course, more than one spring element can also be arranged on the connecting piece, for example in order to increase the restoring force.
  • the spring element is ring-shaped and can be circular, elliptical or parabolic.
  • the ring-shaped spring element can also be referred to as a spring ring and can be designed as an open or closed ring.
  • the spring ring With an open spring ring, the spring ring extends over an angle that is greater than 180°. That is, the lines leading from the centroid of the spring ring to the two ends enclose an angle that is greater than 180°, the angle being determined along the spring ring.
  • an open spring element can easily be elastically deformed, since the two ends of the spring element can be moved towards one another until they meet. Particularly preferably, the ends of the spring element are offset from one another in the axial direction of the connecting piece.
  • the spring element is designed as a helical or spiral spring and encloses the free cross section.
  • the connecting piece has a first connecting piece part and a second connecting piece part, with the latching element being arranged on the first connecting piece part.
  • a two-part connecting piece can be easy to manufacture.
  • the first and second socket parts can be manufactured separately from one another and then connected to one another.
  • the first and second nozzle parts can be latched or glued together.
  • the spring element at least partially encloses the second socket part.
  • the suction air flow can be guided, for example, through the second connecting piece part.
  • the first connecting piece part at least partially encloses the second connecting piece part.
  • the first socket part can be referred to as the outer socket and the second socket part as the inner socket.
  • the spring element rests at least partially on an inner surface of the connecting piece in the locking position.
  • the spring element particularly preferably rests at least partially on an inner surface of the first connecting piece part.
  • the travel of the spring element can be limited by the spring element lying against the inner surface be, since the spring element is only movable until the locking position of the locking element is reached. Further movement is prevented by the inner surface.
  • the construction of the connecting piece can be simplified, since no device has to be attached to prevent movement of the locking element beyond the locking position.
  • the spring element presses against the inner surface with a prestressing force. The spring element can therefore be prestressed in the locking position in order to increase the restoring force.
  • the design of the connecting piece and thus its production can be further simplified. This is because a continuous inner surface can be made possible, which can lead to simplified demolding after an injection molding step, for example.
  • At least one fixing element is arranged on the connecting piece in order to prevent the spring element from slipping relative to the latching element.
  • the at least one fixing element can, for example, prevent the spring element from slipping in the axial direction of the connecting piece.
  • the at least one fixing element is particularly preferably arranged on the first connecting piece part.
  • the fixing element can be designed as a rib, for example.
  • the spring element is arranged between a first and a second connecting piece part. This can prevent a user from inadvertently displacing the spring element while handling the connecting piece, for example in order to remove it from the suction opening. It is therefore possible to guarantee reliable functioning of the connecting piece, in which case the latching element can be reliably brought into the locking position by the spring element.
  • the first and second nozzle part arranged spring element allows a smooth outer surface of the connecting piece, so that the user can grip the connecting piece better.
  • the latching element has a latching means and is connected to the connecting piece at a connection point, and the spring element acts on the latching element at a second point between the latching means and the connection point.
  • a strong spring can be used, which can travel little distance and still allow easy actuation of the latching means.
  • the spring element acts on the latching element at a point between the latching means and a movable free end of the latching element. The latching element thus has a free end on which the user can, for example, depress the latching element in order to bring it into the unlocked position.
  • a latching means is advantageously arranged on the latching element, by means of which the connecting piece can be fixed to the suction opening, so that the connecting piece can be held securely in the suction opening.
  • the latching means can, for example, be designed as a latching hook which can engage, for example, in a corresponding latching groove of the intake opening.
  • the locking element is connected to the connecting piece via a joint.
  • the point at which the joint is located can be referred to as the connection point between the locking element and the connecting piece.
  • the latching element is particularly preferably connected to the first connecting piece part via the joint. The movement of the latching element between the locking position and the unlocking position can be fixed by the joint.
  • the joint can be designed as a film hinge in the case of a latching element which is integrally formed on the connection piece or the first piece part.
  • the latching element can also be elastically deformed in order to be brought into the unlocked position and the locked position.
  • the locking element can be connected via a joint and at the same time be elastically deformable.
  • the latching element is integrally formed on the connecting piece.
  • the latching element is formed in one piece on the first socket part.
  • “Formed in one piece” means that the latching element and the connection piece or the latching element and the first piece part from one are made of the same material and form a common component, i.e. are made of one piece.
  • the latching element and the connecting piece or the first connecting piece part can be produced in one production step, so that faster production can be made possible.
  • the connecting piece with the latching element or the first piece of connecting piece with the latching element can be easily manufactured in the usual processes, for example by injection molding.
  • the latching element is tongue-shaped.
  • the latching element in the form of a tongue is connected to the connection piece or the first piece part at the root of the tongue.
  • the connection point is therefore at the root of the tongue.
  • the tongue-shaped latching element is connected to the connecting piece or the first connecting piece part via a joint.
  • the spring element is particularly preferably arranged between the tongue root and the latching means.
  • the spring element is spaced apart from the second connecting piece part in the locking position.
  • the distance means that the spring element does not touch the second socket part, at least in the locking position, and the locking element can therefore be moved with the spring element against the restoring force in the direction of the second socket part.
  • the spring element is spaced apart from the second connecting piece part in the unlocked position.
  • the spring element also does not touch the second socket part in the intermediate positions between the locking position and the unlocking position.
  • the unlocking position of the latching element can be determined, for example, by the latching element touching the second socket part.
  • the present invention makes it possible to provide a connecting piece for a vacuum cleaner with simple structural and cost-effective means, the design of which can be simplified.
  • the connecting piece can be easily rotatably fixed in the suction opening, thereby avoiding material wear be able.
  • a connecting piece can be provided with a spring element, which can be easily mounted on the connecting piece.
  • FIG. 1 shows a connecting piece 10 for a vacuum cleaner, which can be connected to a suction hose and a suction opening of a vacuum cleaner part.
  • the connection piece 10 is composed of a first 11 and a second piece part 13, wherein on the second Socket part 13 has a first 21 and a second opening 23 .
  • a fluid connection for suction air to a suction hose can be established via the first opening 21 of the second connecting piece part 13 and a fluid connection to a vacuum cleaner part can be established via the second opening 23 .
  • a flexible end piece 25 is formed onto the second connecting piece part 13, through which a suction hose can be securely connected to the connecting piece 10 without kinking. The end of the connecting piece with the second opening 13 can be inserted into the suction opening of the vacuum cleaner part.
  • the first 11 and the second socket part 13 are cylindrical and therefore tubular, with the second socket part 13 being surrounded by the first socket part 11 .
  • the first connector part 11 is therefore an outer connector
  • the second connector part 13 is an inner connector.
  • the cross section of the connecting piece 10 is in 2 shown, made of a section along line AA 1 is. Out of 2 it can be seen that the free cross-section 15 of the connecting piece 10 , through which the suction air flow of the vacuum cleaner can flow, is circular and is defined by the second connecting piece part 13 .
  • the free cross section 15 of the connecting piece 10 is surrounded by a circular peripheral line 17 .
  • the latching elements 30 each have a latching means 39 designed as a latching hook, which can engage in a corresponding latching groove of the suction opening.
  • the latching elements 30 are tongue-shaped and integrally formed on the first socket part 11 and thus on the connection socket 10 , being connected to the connection socket 10 or the first socket part 11 at the root 37 of the tongue.
  • the connection point 33 is thus located at the tongue root 37.
  • the latching elements 30 are each connected via a joint 31 designed as a film hinge at a connection point 33 to the first connecting piece part 11 and thus to the connecting piece 10.
  • the locking position is shown in the figures.
  • the ring-shaped spring element 40 is designed as an open spring ring, which extends over an angle of approximately 340°, and thus over an angle that is greater than 180°.
  • the annular spring element 40 encloses the second connecting piece part 13 except for an opening 43 formed between the two ends 41 of the spring element 40, so that the spring element 40 at least partially encloses the free cross section 15 of the connecting piece 10.
  • more than half of the peripheral line 17 of the free cross section 15 is enclosed. Since the spring element 40 partially encloses the free cross section 15, the spring element 40 can only be removed from the connecting piece 10 in the axial direction without being deformed. A removal in a radial direction is not possible without deforming the spring element 40 .
  • the spring element 40 bears against an inner surface 19 of the first connecting piece part 11 and against the latching element 30 .
  • a part of the inner surface 19 against which the spring element 40 rests in the locking position is also formed by the latching elements 30 .
  • the latching elements 30 can be brought from the locked position into the unlocked position by a user in order to be able to remove the connecting piece 10 from the suction opening. For this purpose, the user can press down the latching elements 30 on the tongue end 35 in the direction of the second connecting piece part 13 .
  • the spring element 40 is compressed, the two ends 41 of the spring element 40 being moved towards one another and the spring element 40 being able to be supported on both locking elements 30 .
  • the spring element 40 is hereby elastically deformed and exerts a restoring force acting radially outwards on the latching element 30 . Due to the restoring force of the spring element 40, the two latching elements 30 can be brought back from the unlocked position back into the locked position by the spring element 40 after the user has released them again after being pressed together.
  • the spring element 40 is spaced apart from the second socket part 13 in the locking position and the unlocking position of the locking elements 30, so that the locking elements 30 can be moved easily.
  • the spring element 40 is arranged between the first 11 and the second socket part 13, so that a user cannot move the spring element and the outer surface of the connection socket 10 is smooth.
  • the spring element 40 engages the respective latching element 30 at a point between the latching means 39 and the connection point 33, at which the latching elements 30 are each connected to the first socket part 11 and thus to the connection socket 10.
  • two rib-shaped fixing elements 20 are arranged on the first connecting piece part 11 and thus on the connecting piece 10 in order to prevent the spring element 40 from slipping relative to the locking element 30 .
  • the two fixing elements 20 are ring-shaped and enclose the second connecting piece part 13 and thus the free cross section 15 of the connecting piece 10.
  • the spring element 40 is designed as a spiral spring.
  • the free cross section 15 of the connecting piece 10 is completely surrounded by the spring element 40 .
  • the present invention makes it possible to provide a connecting piece for a vacuum cleaner with simple constructional and cost-effective means, the construction of which can be simplified.
  • the connecting piece can be easily rotatably fixed in the suction opening, which means that material wear can be avoided.
  • a connecting piece can be provided with a spring element, which can be easily mounted on the connecting piece.

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

Claims (13)

  1. Tubulure de raccordement (10) pour un aspirateur, dans laquelle la tubulure de raccordement (10) peut être reliée à un flexible d'aspiration et à un orifice d'aspiration d'une partie d'aspirateur, et présente une section libre (15), que le flux d'air d'aspiration de l'aspiration peut traverser, et un élément d'encliquetage (30) et un élément à ressort (40) sont disposés sur la tubulure d'aspiration (10), et l'élément à ressort (40) est capable d'exercer une force de rappel sur l'élément d'encliquetage (30), afin de placer l'élément d'encliquetage (30) d'une position déverrouillée, dans laquelle la tubulure de raccordement (10) est amovible de l'orifice d'aspiration, dans une position verrouillée, dans laquelle la tubulure de raccordement (10) peut être fixée via l'élément d'encliquetage (30) à l'orifice d'aspiration, dans laquelle l'élément à ressort (40) entoure au moins partiellement la section libre (15), dans laquelle l'élément à ressort (40) est déformé élastiquement, caractérisée en ce que l'élément à ressort (40) exerce sur l'élément d'encliquetage (30) une force de rappel agissant vers l'extérieur en direction radiale, lorsque l'élément à ressort (40) est placé de la position verrouillée dans la position déverrouillée.
  2. Tubulure de raccordement (10) selon la revendication 1, caractérisée en ce que l'élément à ressort (40) est formé de façon annulaire.
  3. Tubulure de raccordement (10) selon la revendication 1 ou 2, caractérisée en ce que la tubulure de raccordement (10) présente une première partie de tubulure (11) et une deuxième partie de tubulure (13), dans laquelle l'élément d'encliquetage (30) est disposé sur la première partie de tubulure (11).
  4. Tubulure de raccordement (10) selon l'une des revendications précédentes, caractérisée en ce que l'élément à ressort (40) est au moins en partie contigu à une surface intérieure (19) de la tubulure de raccordement (10) en position verrouillée.
  5. Tubulure de raccordement (10) selon la revendication 4, caractérisée en ce qu'une partie de la surface intérieure (19) à laquelle l'élément à ressort (40) est contigu en position verrouillée est formée par l'élément d'encliquetage (30).
  6. Tubulure de raccordement (10) selon l'une des revendications précédentes, caractérisée en ce qu'au moins un élément de fixation (20) est disposé sur la tubulure de raccordement (10), afin d'empêcher un glissement de l'élément à ressort (40) par rapport à l'élément d'encliquetage (30).
  7. Tubulure de raccordement (10) selon la revendication 3, caractérisée en ce que l'élément à ressort (40) est disposé entre la première (11) et la deuxième partie de tubulure (13).
  8. Tubulure de raccordement (10) selon l'une des revendications précédentes, caractérisée en ce que l'élément d'encliquetage (30) présente un moyen d'encliquetage (39) et l'élément d'encliquetage (30) est relié en un point de jonction (33) à la tubulure de raccordement (10) et l'élément à ressort (40) s'engrène sur l'élément d'encliquetage (30) en un endroit entre le moyen d'encliquetage (39) et le point de jonction (33).
  9. Tubulure de raccordement (10) selon l'une des revendications précédentes, caractérisée en ce que l'élément d'encliquetage (30) est relié à la tubulure de raccordement (10) via une articulation (31).
  10. Tubulure de raccordement (10) selon l'une des revendications précédentes, caractérisée en ce que l'élément d'encliquetage (30) est formé en une seule pièce sur la tubulure de raccordement (10).
  11. Tubulure de raccordement (10) selon l'une des revendications précédentes, caractérisée en ce que l'élément d'encliquetage (30) est formé en forme de langue.
  12. Tubulure de raccordement (10) selon l'une des revendications 3 et 7, caractérisée en ce que l'élément à ressort (40) est à distance de la deuxième partie de tubulure (13) dans la position verrouillée.
  13. Tubulure de raccordement (10) selon l'une des revendications 3 , 7 et 12, caractérisée en ce que l'élément à ressort (40) est à distance de la deuxième partie de tubulure (13) dans la position déverrouillée.
EP11174970.1A 2010-08-12 2011-07-22 Tubulure de raccordement dotée d'élément de ressort Active EP2417889B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010039283A DE102010039283A1 (de) 2010-08-12 2010-08-12 Anschlussstutzen mit Federelement

Publications (3)

Publication Number Publication Date
EP2417889A2 EP2417889A2 (fr) 2012-02-15
EP2417889A3 EP2417889A3 (fr) 2015-08-19
EP2417889B1 true EP2417889B1 (fr) 2022-04-20

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ID=44773953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11174970.1A Active EP2417889B1 (fr) 2010-08-12 2011-07-22 Tubulure de raccordement dotée d'élément de ressort

Country Status (2)

Country Link
EP (1) EP2417889B1 (fr)
DE (1) DE102010039283A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE651327C (de) * 1935-02-13 1937-10-11 Elektrolux Akt Ges Loesbare Kupplung fuer vorzugsweise um ihre Achse frei drehbare Staubsaugerleitungen
US2444888A (en) 1944-12-12 1948-07-06 H A Douglas Mfg Co Coupling
DE1903313U (de) * 1964-06-12 1964-10-29 Miele & Cie Maschinenfabrik Rohrkupplung zur verwendung bei wirtschaftlichen geraeten.
DE2829938A1 (de) * 1978-07-07 1980-01-24 Mauz & Pfeiffer Progress Steckverbindung
DE8502525U1 (de) * 1985-01-31 1985-05-15 Rowenta-Werke Gmbh, 6050 Offenbach Vorrichtung zum verbinden des sauganschlussstutzens mit dem staubsaugergehaeuse
DE19616389A1 (de) 1996-04-24 1997-10-30 Bosch Siemens Hausgeraete Anordnung zum lösbaren Verbinden eines Saugstutzens mit der Saugöffnung eines Staubsaugers
DE20206730U1 (de) 2002-04-26 2002-10-10 Truplast Kunststofftechnik GmbH, 35428 Langgöns Kupplungsmuffe für die Verbindung eines Saugschlauchs mit einem Gehäuse
DE102004038630A1 (de) 2004-08-09 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Kupplung zum Verbinden eines Staubsaugerschlauchs mit einem Rohr

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Publication number Publication date
EP2417889A3 (fr) 2015-08-19
DE102010039283A1 (de) 2012-02-16
EP2417889A2 (fr) 2012-02-15

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