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

• the invention relates to a coupling, in particular for connecting a Staubsauger ⁇ hose with a pipe, according to the preamble of claim 1 and a Staubsau ⁇ ger with a coupling according to the invention.
• Canister vacuum cleaner consist essentially of a housing for receiving in particular mechanical and electrical components, an an ⁇ closed or connectable to the housing hose, a coupled via a handle with the hose tube, the handle can be part of the tube, and one with the Vacuum cleaner pipe coupling nozzle.
• the user generally holds the pipe by the associated handle, whereby he can guide the vacuum cleaner nozzle over the surface to be cleaned, and he pulls the housing, which is usually mounted on rollers, behind him.
• various requirements are to be placed on the vacuum cleaner. These also relate to the coupling between the vacuum cleaner tube and the hose.
• this coupling it is useful if it allows the greatest possible freedom of movement, d. H. if it vor ⁇ preferably allows a rotation between the vacuum cleaner tube and vacuum cleaner hose to 360 ° and beyond. Furthermore, with regard to the coupling, it is desirable that it be able to be separated by the user of the vacuum cleaner, but the clutch should nevertheless be so secure that no unintentional disconnection can take place. Wei ⁇ terhin the joining of the coupling should be so simple that the vacuum cleaner can be delivered with decoupled coupling, d. H. it should be reasonable for the user of the vacuum cleaner to assemble the clutch after opening the package without whe ⁇ res independently.
• the hose sleeve carries a locking cam which is initially deflected by the connecting part against its spring force during insertion of the hose sleeve into a connecting part and then spring-back into a circumferential groove of the connecting part can be latched.
• the Hose sleeve protrudes in the connected state of the coupling elements from the An ⁇ trailer part, so that by squeezing the hose sleeve this is removable in any relative state of hose sleeve and connector part of this.
• the invention has for its object to provide a coupling in particular for connecting a vacuum cleaner hose with a pipe or a handle available, which can be coupled in a simple manner and ensures a secure fit in the coupled locking connection. In particular, unintentional release of the latching connection should be prevented as far as possible.
• the coupling elements can be coupled in particular in any or at least in a plurality of mutual rotational positions.
• a loosening of the coupled coupling connection is in particular only possible in a specific or only a small number of mutual rotational positions of the two coupling elements.
• the coupling is formed with a first tubular coupling element which has a latching groove and a second tubular coupling element which has at least one latching lug which abuts a groove flank of the latching groove in a latching connection of the two coupling elements such that the coupling elements engage in axial direction held against loosening and axially against each other are rotatable and the latching connection between detent and locking lug by means of an actuator is releasable, wherein the groove flank has a flank portion which is prevented by the actuating member between a detent position in which a moving out of the detent from the detent groove and a release position is movable, in which the detent groove for a move out of the latching latch is released from the locking groove.
• flank portions of the groove flank of the locking groove can be adapted in its size of the latching lug.
• the flank section should preferably be slight be formed wider than the catch.
• the height of the flank section should preferably be slightly higher than the height of the latching lug.
• the at least one locking lug can be fixedly mounted on the second tubular coupling element for cost-effective production and assembly. If the components are made of plastic, then the at least one latching lug can preferably be molded onto the coupling element in a plastic injection molding process.
• the invention builds in a variant on the generic coupling in that the first coupling element has an at least partially circumferentially um ⁇ running groove, wherein the second coupling element zu ⁇ when coupling zu ⁇ turning boundary of the groove has at least a portion which due to elastic ⁇ shear properties of the first coupling element is movable inwardly, and that the second coupling element has at least one extending into the inner region of the second coupling element locking lug, which cooperates in the locked state of the coupling with the boundary of the groove and thus a proper Ent coupling the coupling allowed only when the portion of the boundary of the groove is moved inward and when the portion of the boundary of the groove completely overlaps the detent in the circumferential direction.
• the first coupling element is a Staubsauger ⁇ hose sleeve.
• the coupling according to the invention can also be used in the context of other areas.
• the second coupling element is a handle of a Staub ⁇ sucker.
• the present invention can also be used in other areas.
• the first coupling element can be arranged on the handle, while the second coupling element is a vacuum cleaner hose sleeve, ie the rollers of the vacuum cleaner hose sleeve and the handle are exchanged.
• the handle may be a separate component or be a part of the vacuum cleaner tube.
• the groove runs around the entire circumference of the first coupling element. This allows a rotational movement of the coupling elements relative to each other by 360 ° and beyond.
• the invention is further developed in a particularly advantageous manner in that the movability of the section of the boundary of the groove extends through a U-shaped interruption of the first coupling element, the legs of the U-shaped interruption extending in a substantially axial direction, so that an elastic tongue results.
• a U-shaped interruption can be realized in a simple manner and reliably fulfills the requirements for elastic deformability for the purpose of releasing the operative connection between the groove boundary and the latching lug.
• the first coupling element prefferably has two diametrically opposed movable sections and for the second coupling element to have two diametrically opposite latching lugs.
• the diametrically opposite arrangement of the tongues is also particularly easy to handle, since the tongues can be pressed with two fingers in Chrysler ⁇ set direction.
• a seal is provided on an end area of the first coupling element facing the first coupling element during coupling.
• the invention further relates to a vacuum cleaner with a coupling according to the invention.
• the invention is based on the finding that a secure connection between two coupling elements is realized by the provision of a deformability of a boundary of a groove provided for the purpose of latching, whereby unintentional release can be prevented with great probability.
• Figure 1 is a perspective view of a coupling according to the invention in ent ⁇ coupled state
• FIG. 2 shows a section through a coupling according to the invention in the coupled state along a first plane
• FIG. 3 shows a section through a coupling according to the invention in the coupled state along a second plane.
• the coupling 10 consists of a first coupling element 12 and a second coupling element 14. Both coupling elements 12, 14 are substantially sleeve-shaped.
• the first coupling element 12 serves as a hose sleeve for a vacuum cleaner hose.
• the coupling element 14 is a handle of a vacuum cleaner.
• the coupling element 12 has a stepped outer contour, wherein in particular a circumferential groove 16 is vorgese ⁇ hen. This latching groove 16 is assigned a groove flank 18 in the direction which is to be turned to the second coupling element 14 when the coupling elements 12, 14 are coupled.
• This groove flank 18 has two opposite sections 20, which are elastically movable inwardly due to U-shaped interruptions 24 and resulting tongues 26. To cause this movement, the tongues 26 Betreli Trents ⁇ members 28, which can be accessed both in the decoupled and in the coupled state of the clutch.
• the second coupling element 14 has two opposite latching lugs 22, which are arranged in the region of interruptions 32 of the second coupling element 14. In the coupled state of the coupling 10, these locking lugs 22 engage in the locking groove 16, and the groove flank 18 of the locking groove 16 prevents inadvertent decoupling of the coupling.
• FIG. 2 shows a section through a coupling according to the invention in the coupled state along a first plane.
• the representation is symmetrical with respect to a Mit ⁇ telachse 30. Only the contours are shown in the sectional plane, wherein the cutting plane relative to the first coupling element 12 radially through the tongues 26 and with respect to the second coupling element 14 radially er ⁇ by the locking lugs 22 er ⁇ stretches.
• the coupled state of the clutch 10 shown here is produced by inserting the first clutch element 12 into the second clutch element 14. If this follows in a relative rotational position of the coupling elements 12, 14, as shown in FIG. 2, then the locking nose 22 succeeds in moving the tongue 26 inwards, so that a slight engagement is made possible.
• decoupling is prevented under all circumstances when the relative rotational position of the first coupling element 12 and second coupling element 14 is selected so that the detents 22 do not completely overlap the inwardly movable sections 20 of the groove flank 18 of the detent groove 16 , Because in this case, other sections than the sections 20 of the groove flank 18 with the locking lugs 22 together. Since these other sections are not movable inward or not reaching inwardly, decoupling can not take place.
• a seal is further provided, which cooperates with an inner wall of the second coupling element 14. As a result, an inadvertent leakage of particles from the region of the coupling is prevented.
• FIG. 3 shows a section through a coupling according to the invention in the coupled state along a second plane.
• the cutting plane is selected with respect to the first coupling element 12 such that the tongues 26 are not cut, ie. H. For example, perpendicular to the selected for Figure 2 cutting plane.
• the cutting plane is selected so that the latching lugs 22 are not cut, that is to say they are not cut. H. for example, perpendicular to the section plane selected for Figure 2. It can be seen that no interlocking of the coupling elements 12, 14 takes place in the region of the cutting plane selected for FIG. 3, or that no element engages in the latching groove 16.
• the coupling connection is therefore provided solely in the region of the latching lugs 22 of the second coupling element, wherein this region can not be seen in FIG.
• the preparation of the coupling according to the invention is simple.
• no circumferential undercut in the second coupling element 14 is required.
• an undercut using a decay core can be added to the coupling element 14.
• This solution is more complex than the embodiment shown in Figures 1 to 3.
• the perforations 32 in the second coupling element 14 can be dispensed with, which may be desirable for optical reasons.
• first coupling element vacuum hose sleeve

Landscapes

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

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=35385528

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (16)

Citations (5)

Family Cites Families (3)

• 2004
  • 2004-08-09 DE DE102004038630A patent/DE102004038630A1/de not_active Withdrawn
• 2005
  • 2005-07-28 EP EP05777831A patent/EP1778065B1/de not_active Not-in-force
  • 2005-07-28 CN CN2005800263788A patent/CN1993074B/zh not_active Expired - Fee Related
  • 2005-07-28 AT AT05777831T patent/ATE401030T1/de not_active IP Right Cessation
  • 2005-07-28 DE DE502005004743T patent/DE502005004743D1/de active Active
  • 2005-07-28 WO PCT/EP2005/053686 patent/WO2006015951A1/de active IP Right Grant

Patent Citations (5)

Non-Patent Citations (1)

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