EP0882421A1 - Anschlussvorrichtung eines Saugschlauchs an einem Staubsauger - Google Patents

Anschlussvorrichtung eines Saugschlauchs an einem Staubsauger Download PDF

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Publication number
EP0882421A1
EP0882421A1 EP98420082A EP98420082A EP0882421A1 EP 0882421 A1 EP0882421 A1 EP 0882421A1 EP 98420082 A EP98420082 A EP 98420082A EP 98420082 A EP98420082 A EP 98420082A EP 0882421 A1 EP0882421 A1 EP 0882421A1
Authority
EP
European Patent Office
Prior art keywords
connector
rod
skirt
face
helical
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
EP98420082A
Other languages
English (en)
French (fr)
Other versions
EP0882421B1 (de
Inventor
Alain Soen
Pierre Kerboas
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.)
SEB SA
Original Assignee
SEB SA
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Filing date
Publication date
Application filed by SEB SA filed Critical SEB SA
Publication of EP0882421A1 publication Critical patent/EP0882421A1/de
Application granted granted Critical
Publication of EP0882421B1 publication Critical patent/EP0882421B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/24Hoses or pipes; Hose or pipe couplings
    • A47L9/242Hose or pipe couplings

Definitions

  • the present invention relates to a flexible suction hose connector to a vacuum cleaner, this connector comprising on the one hand a male connector secured to the end of the pipe and on the other hand a female connector secured from the wall of the vacuum cleaner in front of the entrance to the dust collection bag.
  • this male connector is locked in the female connector, the central tubular plug of the male connector engages in the inlet of the recovery bag.
  • the invention relates more particularly to a vacuum cleaner whose inlet of the bag dust collector includes a valve movable between a position shutter and an open position whose displacement is preferably automatically controlled by inserting and removing the connector male in and out of the female connector.
  • Document WO-95/15109 describes a connection device between a pipe and the vacuum frame for controlling the opening and closure of the recovery bag with respectively the lock and the unlocking the hose on the frame.
  • the configuration of the medium shutter actuated using the hose connector does not allow the simultaneous or automatic control of other organs.
  • the applicant's patent application FR-9606625 describes two variants of connectors allowing, by actions only on the male connector, open the inlet of the recovery bag, insert the nozzle or tubular plug of the male connector in the bag inlet and lock this connector.
  • the female connector has a cylindrical body integral with the frame and in the internal face of which grooves are formed opposite staircases each with two descents and two landings interspersed.
  • this circular body pivots a socket presenting from its upper edge two vertical slots diametrically opposite and being provided in its lower part of a radial external drive finger cooperating with a V-shaped cam arranged opposite.
  • This cam is integral with a rod movable in rotation about an axis parallel to that of the female connector and whose lower cross end is engaged in the valve closing / opening of the bag entrance.
  • the male connector nozzle has a pair of spurs coming simultaneously to engage in the slots of the socket and staircase grooves of the body during a first movement insertion downhill.
  • a skirt coaxially bordering the nozzle of the male connector has a transverse serration.
  • This serration is planned to come to engage, during a first insertion downhill, in a semicircular rack emerging through a window inside the cylindrical body of the female connector, this rack being integral with the valve control rod.
  • a rotation of the male connector guided by its spur traversing an intermediate bearing of groove of the cylindrical body of female connector causes rotation of the rod therefore an opening of the flap by meshing between the serration and the rack.
  • a second downhill insertion always guided by grooves allows penetration the nozzle in the bag entrance.
  • the object of the present invention is a connector for connecting a flexible pipe suction to a vacuum cleaner which, in addition to the firm connection function between the hose and the vacuum cleaner, provides additional functions, including opening a bag closing valve and locking the movable cover for access to the bag, and this in the most connecting movement simple possible, in particular by a single translation along the longitudinal axis of the female connector.
  • the locking mechanisms and the mechanisms of the additional functions should be as simple as possible to increase reliability and reduce manufacturing and assembly costs.
  • the drive member of the rod is a cam whose helical rear face passes through the window and protuberance in the cylindrical body, face against which acts either directly a portion of the front edge of the skirt as an element of the male connector, a small helical front face of contact of a notch in this front edge of the skirt.
  • rear face is meant a face oriented in the direction of extraction of the male connector outside the female connector, therefore mainly oriented towards the flexible suction tube, in particular the helical actuating face formed at the periphery of the rod cam.
  • a rear part of a piece is the part closest to the suction tube.
  • frontal means a face acting in the direction of introduction of the male connector in the female connector, therefore mainly oriented towards the waste recovery bag.
  • control mechanism for closing the rotary valve when extracting the male connector out of the female connector is then a return means acting against the rotating movement of the rod in the opening direction of the bag flap.
  • This closing mechanism is simple in that it is reduced to a spring accumulating mechanical energy when inserting the connector male in the female connector transparent to the user, this mechanism acting automatically and always transparently when opening of the connector.
  • the helical rear face of the cam is also oblique inward of the female connector.
  • This slope reduces the risk of jamming during the progression of the lowering the male connector into the female connector.
  • the passage of the small front face of contact of the male connector of the rear end to the front end of the helical face of the cam of the rod prints a rotation of the order of a quarter turn on this rod, this passage corresponding to a translation of the skirt in the cylindrical body of approximately a quarter of the height of this skirt, the stem cam finally disappearing in the window.
  • the possible notch made to create a small contact face helical having a low height it also ensures effective strength of the connector against bending forces, especially when pulling on the suction hose for advancing a vacuum cleaner mounted on a wheel. Indeed, most of the height of the skirt, the periphery of which is not altered, is then in firm contact with the cylindrical body of the connector body female.
  • the front end of the helical face of the cam opens on a vertical cylindrical surface integrating into the cylindrical periphery internal of the female connector when the cam disappears in the window.
  • the drive element of the connector male is a perpendicular lug of the skirt passing through a window longitudinal of the cylindrical body to act on the drive member of the rod in the form of a helical rear face of a groove or a notch from the rear edge in the periphery of a cylinder or cylinder sector whose axis of rotation is common to that of the rod, this helical rear face preferably starting and ending vertically.
  • the term “rear face” always means the face oriented towards the suction tube and arranged throughout the thickness of a hollow cylinder or hollow cylindrical sector integral with the rod in the case of a open groove or notch; or only partially provided in the radius of a cylinder or full cylinder sector in the case of a groove closed or notched, then also called helical projection.
  • This cylinder or cylinder sector then forms a kind of cam body but which is entirely outside the female connector.
  • the window formed in the cylindrical body for placing in communication with the drive element of the male connector with the organ rod drive is then rather a vertical window, that is to say parallel to the longitudinal axis of the female connector, window whose width is reduced to that of the male connector lug.
  • the thickness of the cylindrical body must however be such that this vertical cut does not alter its rigidity too much.
  • the member for driving the rod is a finger crossing a transverse window of the cylindrical body and against which acts a drive element of the male connector in the form a helical front face of an open notch or groove formed in the outer skirt from its front edge
  • the "front face” is the helical edge rather long skirt defining either the contour of the notch or the line upper of the groove acting on the finger.
  • the window formed in the cylindrical body to communicate the element drive the male connector with the drive member of the rod is then rather a horizontal window, that is to say formed in the periphery of the cylindrical body perpendicular to its median longitudinal axis, window whose height is reduced to that of the crossing finger.
  • the valve closing mechanism when extracting the male connector from the female connector is a means of reminder acting against the rotating movement of the rod in the direction of opening the bag flap.
  • This embodiment has the advantage that if, for a reason or for another, the valve or stem has friction or jamming during movement back in closing, it is always possible to extract the male connector, allowing access to the valve for cleaning and removal possible obstruction.
  • the valve closing mechanism when the extraction of the male connector from the female connector is the front face helical of this groove substantially parallel to the rear face.
  • the valve closing mechanism when extracting the connector male out of the female connector is the helical rear side of this groove substantially parallel to the front face
  • valve actuation mechanism is found in this configuration particularly simple since it is reduced to two-way interaction a finger or a lug engaged in a helical groove.
  • a bag access cover locking arm is provided in the rear part of the rod diametrically opposite to its drive member in rotation.
  • the structure of the organ drive whether in the form of a cam, a cylindrical sector or with a finger, always authorizes the additional arrangement of this useful arm hood lock. .
  • the rod drive member and / or the drive member of the skirt is made or covered with a material having a low coefficient of friction, for example made or coated with Teflon or metal polished.
  • the means for guiding the male connector in the connector female is a tongue protruding from the skirt in a passing radial plane by the longitudinal median axis of the male connector, coming to engage in a groove in the internal periphery of the cylindrical body in a plane radial passing through the longitudinal median axis of the female connector.
  • This guiding device has the advantage of preserving the integrity of the skirt, in particular of its rear part involved in the sealing of the connector.
  • the rear end of the rod is connected to an operating button accessible from outside the building. This allows to activate, if necessary the bag closing valve manually, for example to check its correctness operation.
  • Figure 1 is illustrated a connector connecting a suction tube 8 to a frame 5 of a vacuum cleaner so that the inside of this hose is in communication with the interior of a dust collection bag 60.
  • the flexible dust collection bag 60 has a rigid plate of fixing in supports 69 inside the vacuum cleaner 5, this rigid plate substantially rectangular with an inlet opening 66 capable of to be closed by a valve 64.
  • This rigid plate is notably constituted by stacking several assembled cardboard or plastic plates. More specifically, this stack comprises a first rigid internal plate 61 does not having a circular central inlet 66 which is covered by a sealing membrane 62 having an opening coaxial with the inlet orifice 66. A guide plate is applied to this sealing membrane 62. 63 having a bean-shaped opening of which one of the lobes is coaxial at the inlet 66.
  • This opening contains a rotary inlet valve 64 of which the shape corresponds substantially to a lobe of the bean-shaped opening of the guide plate 63, this valve also having a cross orifice receiving a key 52 from a rotating control rod.
  • This valve 64 can thus be turned in one lobe then in the other of the opening in the form of guide plate 63 bean for closing and opening respectively the orifice 66.
  • This guide plate 63 is itself surmounted by a plate rigid external 65 having, like the internal rigid plate 61, only one central entrance orifice.
  • the inlet valve 64 is maintained, movable in sliding, in the plane of its guide plate 63 by the two rigid internal 61 and external 65 plates.
  • the slices of this rigid bag entry plate 60 are inserted into grooves at the end of bars or bags support plates 69 arranged opposite.
  • the connector of the suction tube 8 to the vacuum cleaner frame 5 comprises on the one hand a female connector 30 mounted in the frame 5 of the vacuum cleaner little above the bag 60 and on the other hand a male connector 10 fixed to the end of the suction tube 8 and intended to be inserted and locked in the female connector 30.
  • the female connector 30 mainly has a cylindrical body 32 crossing the frame 5 of the vacuum cleaner and completed at its outer end by a radial rim 33 bearing on this frame.
  • the longitudinal axis median of this cylindrical body 32 is in alignment with the central axis of the circular inlet orifice 66 of the rigid zone of the bag 60.
  • the male connector 10 has a sleeve 16 for attachment to the vacuum tube narrowing downstream into a central plug 12 whose external diameter is equal to or even slightly less than the diameter of the inlet 66 through from which this sheet is intended to be inserted.
  • the lower part of the sleeve 16, the restriction zone and the upper part of the central plug 12 are surrounded by a substantially cylindrical outer skirt 14 coaxial with the plug central 12 and of external diameter equal, even slightly smaller, to the diameter internal of the cylindrical body 32 of the female connector 30 in which it is planned to fit.
  • the upper part of this outer skirt 14, as illustrated in this figure 1, has a conical peripheral rim 17 ending in a circular lower projection 15.
  • the outer skirt 14 has two pairs of diametrically opposite vertical slots to define, in this skirt, two flexible arms 70 each carrying at their lower end a hook 74 provided to snap into a notch 34 formed in correspondence in the lower edge of the cylindrical body 32 when the male connector 10 is completely inserted into female connector 30.
  • the upper part of these arms 70 has pressure buttons 72 appearing in the windows of the conical rim 17 allowing, by pressing on these buttons, to release the hooks 74 out of the notches 34 to unlock the connector.
  • the male connector 10 is intended to be installed in its female connector 30 by a single translational movement along their common median longitudinal axis.
  • the skirt 14 of the male connector 10 has an external radial guide tongue 18, better visible in Figures 1 and 2, intended to be inserted in a groove 38 formed in the internal periphery of the cylindrical body 32, also arranged in a radial plane passing through the median longitudinal axis.
  • the valve control mechanism inlet 64 of the bag 60 then comprises a rod 50 supported by members holding not illustrated of the frame 5 of the vacuum cleaner so as to be movable around its central longitudinal axis oriented parallel to that of the body cylindrical 32.
  • This rod 50 has a cruciform lower end 52 constituting the key entering the also cruciform control orifice for rotating the inlet valve 64 of the bag 60.
  • the reduced upper end of this rod 50 has two diametrically opposite drive fingers 59. These fingers 59 are provided to snap into two oblong openings 44 formed also diametrically opposite in a socket 42 of maintenance of an external button 40 for actuating from the outside manually the inlet valve 64 of the bag 60.
  • this socket 42 rotates within a cylindrical chimney 7 of the frame 5 of the vacuum cleaner where it is held in position by lower hooks 46 which engage under the lower edges of this fireplace.
  • this rod 50 is also provided with an arm 53 enabling a control to be locked opening a movable hood of the frame 5 of the vacuum cleaner allowing access to the bag 60 for replacement.
  • this cover incorporates the female connector 30 and the bag supports 69, or is completely independent by being adjacent to it.
  • the member for rotating the rod 50 is under the form of a plate in circular sector 54 orthogonal to the rod and diametrically opposite to the locking arm 53, this plate supporting in its radial end a cam 55 protruding inside the body cylindrical 32 passing through a window 36 of this body.
  • this cam 55 has a face in helical portion 56 oriented towards the rear, that is to say towards the connector male 10 and simultaneously slightly oblique towards the inside of the body cylindrical 32.
  • This helical face 56 does not have a track in the portion of a circular crown, but narrows at its lower end, i.e. its most frontal edge close to the recovery bag 60, by a thinning due to the presence of a vertical surface in cylinder portion 57 of radius of curvature identical to the internal radius of the cylindrical body 32.
  • the angle at the top of this helical face as seen in FIG. 4b is between 60 ° and 90 °, from around 80 °.
  • a return means 80 for example a coaxial helical spring with the rod 50 is attached on the one hand to the frame 5, for example in one of the arms of bag support 69 and on the other hand to the rod 50, for example to the arm of lock 53 or to the circular sector plate 54, so that oppose a rotation of this rod out of its rest position as illustrated in figure 1.
  • the end front of the skirt 14 of the male connector 10 may have a notch 13 one of whose edges is oblique, i.e. which also has a line helical.
  • the outer skirt 14 can continue to progress, in particular by sliding along the vertical surface in a portion of a cylinder 57 of cam 55 so that the central plug 12 can now penetrate through the orifice 66, in particular by pushing aside the flexible sealing membrane 62. It will be noted that the external skirt 14 comes completely seal the window 36 thus protecting the rod 55 from any dust.
  • a notch in the front edge of the skirt 14 makes it possible to give the contact portion of the front edge an oblique orientation, or even helical, in correspondence with the rear of the cam for better sliding, therefore easier rotation of the rod.
  • FIG. 6 illustrates a variant of the connector according to the invention in which the cam 100 of rod 50 remains entirely outside the cylindrical body of the female connector, a transverse lug 90 of the skirt 14 then passing through a vertical window 96 of this body 32. More precisely, the cam 100 presents itself in the form of a block in a cylindrical sector at the periphery of which is formed a groove 110. In particular, this groove has a start higher than vertical, a pronounced intermediate helical ramp inducing a rapid rotation of the rod 50, and ending in a part lower vertical corresponding to the penetration of the central plug 12 of the male connector in the bag inlet.
  • the rear face of this groove 110 is active during the rotation of the cam 50 to open the inlet valve while the face opposite, called frontal, automatically closes this valve during extraction of the male connector 10 outside of the female connector 30. If desired, we can then overcome the return spring 80 of the rod 50.
  • FIG. 7 illustrates a third inverted variant in which the face helical causing the rotation of the rod 50 is now provided under the form of a groove 114 crossing the thickness of the skirt 14 of the connector 10. Then, the drive member of the rod 50 is reduced to a finger 112 orthogonal to its stem and passing through a horizontal window 118 of the body cylindrical 32 of the female connector to engage in this groove helical 114.
  • the front part of this groove 114 can start at the vertical, then become steep with a steep slope to induce rotation rapid stem, and end with a rear portion again vertical corresponding to the penetration of the central plug 12 into the inlet port of the bag.
  • At least the drive member in rotation of the rod can be made of a material having a low coefficient of friction with the control element of the male connector, by example be made or coated with plastic such as that sold under the Teflon designation, or even a polished metallic coating.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
EP19980420082 1997-06-06 1998-05-15 Anschlussvorrichtung eines Saugschlauchs an einem Staubsauger Expired - Lifetime EP0882421B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9707265A FR2764180B1 (fr) 1997-06-06 1997-06-06 Connecteur de tuyau d'aspiration a un aspirateur
FR9707265 1997-06-06

Publications (2)

Publication Number Publication Date
EP0882421A1 true EP0882421A1 (de) 1998-12-09
EP0882421B1 EP0882421B1 (de) 2003-01-29

Family

ID=9507876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980420082 Expired - Lifetime EP0882421B1 (de) 1997-06-06 1998-05-15 Anschlussvorrichtung eines Saugschlauchs an einem Staubsauger

Country Status (5)

Country Link
EP (1) EP0882421B1 (de)
DE (1) DE69810991D1 (de)
FR (1) FR2764180B1 (de)
PL (1) PL326620A1 (de)
SK (1) SK68198A3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2346076A (en) * 1999-01-28 2000-08-02 Numatic Int Ltd Vacuum cleaner where the swivelling connection between the work head and the body portion comprises a detachable conduit
WO2011012482A1 (de) * 2009-07-31 2011-02-03 BSH Bosch und Siemens Hausgeräte GmbH Staubsauger mit stutzen
WO2022238394A1 (de) * 2021-05-12 2022-11-17 Festool Gmbh Staubsauger und verfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2401006B1 (de) * 1974-01-10 1975-05-28 Doubleday, Eric G., 7000 Stuttgart Saugrohr für Staub- oder Flüssigkeitssauggeräte
DE3643498A1 (de) * 1986-12-19 1988-06-30 Vorwerk Co Interholding Rastverbindung fuer staubsauger und deren zubehoer
US5111841A (en) * 1990-11-26 1992-05-12 The Hoover Company Central vacuum system wall valve
WO1995015109A1 (fr) * 1993-12-03 1995-06-08 Seb S.A. Dispositif de connexion entre un aspirateur et un tuyau d'aspiration
WO1997043939A1 (fr) * 1996-05-23 1997-11-27 Seb S.A. Aspirateur comportant une connexion amelioree avec un tuyau d'aspiration

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2401006B1 (de) * 1974-01-10 1975-05-28 Doubleday, Eric G., 7000 Stuttgart Saugrohr für Staub- oder Flüssigkeitssauggeräte
DE3643498A1 (de) * 1986-12-19 1988-06-30 Vorwerk Co Interholding Rastverbindung fuer staubsauger und deren zubehoer
US5111841A (en) * 1990-11-26 1992-05-12 The Hoover Company Central vacuum system wall valve
WO1995015109A1 (fr) * 1993-12-03 1995-06-08 Seb S.A. Dispositif de connexion entre un aspirateur et un tuyau d'aspiration
WO1997043939A1 (fr) * 1996-05-23 1997-11-27 Seb S.A. Aspirateur comportant une connexion amelioree avec un tuyau d'aspiration
FR2748925A1 (fr) * 1996-05-23 1997-11-28 Seb Sa Aspirateur comportant une connexion amelioree avec un tuyau d'aspiration

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2346076A (en) * 1999-01-28 2000-08-02 Numatic Int Ltd Vacuum cleaner where the swivelling connection between the work head and the body portion comprises a detachable conduit
GB2346076B (en) * 1999-01-28 2003-01-08 Numatic Int Ltd Vacuum cleaner nozzle
WO2011012482A1 (de) * 2009-07-31 2011-02-03 BSH Bosch und Siemens Hausgeräte GmbH Staubsauger mit stutzen
WO2022238394A1 (de) * 2021-05-12 2022-11-17 Festool Gmbh Staubsauger und verfahren

Also Published As

Publication number Publication date
SK68198A3 (en) 2000-03-13
PL326620A1 (en) 1998-12-07
EP0882421B1 (de) 2003-01-29
DE69810991D1 (de) 2003-03-06
FR2764180A1 (fr) 1998-12-11
FR2764180B1 (fr) 1999-08-20

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