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
  • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
  • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
  • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
  • A47L9/1436—Connecting plates, e.g. collars, end closures
  • A47L9/1445—Connecting plates, e.g. collars, end closures with closure means
• • 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
  • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
  • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
  • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters

Definitions

• the invention relates to a vacuum cleaner with a chamber for receiving a dust filter bag, the chamber being closable with a lid and an actuating projection for actuating a dust filter bag closure being formed on the underside of the lid, wherein the actuating projection is also pivotally connected to the lid.
• the chamber for receiving the dust filter bag can be closed by a lid, a cover-side actuating projection displacing a closure element of the dust filter bag in the course of the closing process in such a way that the suction opening of a dust filter bag-side holding plate is opened. Opening the filter bag chamber by means of the cover brings about a displacement of the closure element back into a closed position of the suction opening of the holding plate via the actuating projection.
• the actuating projection has an attachment foot for supporting on a support surface and that the foot is designed to roll on the support surface.
• the actuating projection pivotably connected to the lid acts on the closure element of the dust filter bag to shift it into an open position of the suction opening on the bag side
• a part, preferably the major part, of the applied forces is derived via the foot into a support surface.
• This support surface can be, for example, a surface formed in the chamber receiving the dust filter bag.
• the closure When the closure is designed in the form of a slide arranged between two layers of a holding plate, the influence of frictional forces and the bending load on the slide is kept low due to this configuration. Furthermore, it proves to be advantageous that, in the course of the pivoting of the cover to close or open the vacuum cleaner, supporting sliding of the foot on the support surface is facilitated by rolling off the foot. As a result, the forces introduced in particular in the course of a closing movement of the vacuum cleaner cover are kept low.
• the cover is a drag cover. Such a drag lid is known from the applicant's previously unpublished patent application.
• training courses are also known in which the Pivot axis of the drag cover offset, but are assigned parallel to the chamber axis. It is essential that the actuating projection is arranged pivotably on this drag cover.
• An embodiment is preferred in which in a coaxial position of the vacuum cleaner housing and the filter chamber, ie in the closed position of the vacuum cleaner, the drag cover is completely removed from view.
• Such a drag lid preferably has a suction nozzle which penetrates the suction opening of the dust filter bag in the closed position of the vacuum cleaner, ie in its operating position.
• the support surface is formed by a dust filter bag holding plate.
• the latter preferably also has the slide mentioned above for forming the dust filter bag closure.
• the forces acting on the foot are introduced into stable areas of the dust filter bag holding plate.
• the slide closing the suction opening is arranged outside this support surface area, so that the forces introduced via the attachment foot have no influence on the displaceability of the closure.
• the foot is arranged in a juxtaposition to the actuating projection. This results in a support surface on the side of the dust filter bag closure, which support surface is designed either on the housing side or, as is preferred, on the holding plate side.
• the attachment foot is arranged in a row behind the actuating projection.
• the actuating projection can be arranged in relation to a closing movement of the vacuum cleaner housing in advance of the actuating projection, by maintaining a minimum distance between the actuating projection and the foot is ensured that the dust filter bag closure is not acted upon by the foot.
• the latter only acts on the support surface provided for this purpose.
• the mounting foot has a mounting roller. This placement roller is arranged in such a way that it derives the forces acting on the support surface at least over the entire closing or opening process of the dust filter bag closure.
• the actuating projection Due to the pivoting mounting of the actuating projection on the lid, for example on the drag lid, the actuating projection performs a movement along the holding plate while taking the closure with the opening or closing of the dust filter bag closure, which at the same time causes the foot to move on the supporting surface has the consequence.
• the arrangement of a placement roller reduces the frictional forces to a minimum.
• any unevenness or damage to the support surface in particular in the case of a holding plate made, for example, of a cardboard / paper material, does not lead to a malfunction, since the mounting foot provided with a roller can slide easily over these defects.
• a major advantage here is that a roller axis runs essentially parallel to the support surface. It is further proposed for this purpose that two set-up rollers are provided and are each arranged on the side of the actuating projection. This results in two support surfaces formed on both sides of the dust filter bag closure, preferably in the area of the holding plate.
• a handheld vacuum cleaner 1 which essentially consists of a housing 2, a boom 3 of the Housing 2 insertable device handle 4 with an end handle 5 and a connecting line 6 opening in the region of the handle 5.
• a filter bag receiving chamber 7 is connected to the housing 2.
• FIG. 2 shows a side view of the housing 2 and the filter chamber 7, a position of the filter chamber pivoted through 180 ° to expose the same. It can be seen that the filter chamber 7 is pivotally attached to the vacuum cleaner housing 2 via a folding axis 8.
• the filter chamber 7 shown in a top view in particular in FIG. 7 has an essentially rectangular opening cross section.
• an axle mount 10 with axles 11 formed on the end face. The latter are guided to pivot the filter chamber 7 in appropriately aligned knuckle receptacles of the housing 2.
• These steering knuckle mountings are arranged in two mounting brackets 12 assigned to the end faces of the axle mount 10 to form the folding axis 8.
• the housing 2 has a housing opening cross section which corresponds to the chamber opening when the vacuum cleaner is closed and which essentially corresponds to the cross section of the chamber opening.
• the filter chamber 7 is sealingly connected to the housing 2, with a locking device being provided, which is formed by a handle 14 having a locking lug 13 and by a locking receptacle 15 on the housing side.
• Handle 14 and catch 15 are each in the range
• the narrow side of the filter chamber 7 or housing 2 facing away from the folding axis 8 is arranged (cf. FIG. 2).
• the filter chamber 7, which receives a dust filter bag 16, is formed in the form of a cassette-like, funnel-like plastic part produced, for example, by injection molding, with a chamber opening 17 which is essentially delimited by the chamber wall 18.
• the dust filter bag 16 can be inserted into the filter chamber 7, the dust filter bag 16 being removed and inserted through the chamber opening 17.
• a dust filter bag 16 is preferably used here, which is described in a not previously published German patent application with the file number 196 02 547.
• the dust filter bag 16 essentially consists of a holding plate 19, which preferably consists of a cardboard / paper material, and a dust bag 20, for example adhesive-bonded, preferably made of paper, on the underside of this holding plate 19. Furthermore, dust filter bags 16 can also be used, the holding plate of which consist of other materials, such as imitation leather, and the dust bag is made of a textile material.
• the holding plate 19 is composed of four layers of cardboard / paper material which are layered one on top of the other. These four layers are glued together.
• the outline of the holding plate 19 is essentially long and rectangular, with a suction opening 22 which is essentially circular in plan and which passes through the holding plate 19, which passes through all four layers, is formed on a narrow first end region 21 of the holding plate 19.
• the section of the suction opening 22 facing away from the end region 21 is semicircular in the exemplary embodiment shown. This is followed in each case by a semicircle end, on both sides of a longitudinal central axis of the holding plate 19, by a section in the form of a segment of a circle with a tangentially larger diameter, based on the semicircle.
• the contour is closed by a circular section connecting the two free ends of the last-mentioned circular sections, the diameter of which is chosen so large that only a slight curvature of this circular section is described.
• the dust bag 20 is glued to the holding plate 19.
• a rubber seal 23 is gripped between the lowest and the position of the holding plate 19 arranged above it.
• the latter is arranged in particular in the area of the suction opening 22 and here has a circular opening 24 arranged concentrically to the center of the suction opening, to form an annular lip seal formed in the area of the suction opening 22.
• All four layers of the holding plate 19 are of the same design, at least in relation to the outer contour. Only the layer arranged between the uppermost and the third layer is designed as a spacing layer for the layer forming the ceiling and serves to form a space which is closed on all sides and in which a space likewise preferably made of a cardboard / paper material Closure element V is slidably inserted. The latter serves to close the suction opening 22 before the dust filter bag 16 is removed from the filter chamber 7.
• the closure element V is composed essentially of a closure plate 25 to be closed off the suction opening 22 and a slide handle 26 aligned in the longitudinal extent of the holding plate 19. The latter is arranged on the side of the closure plate 25 facing away from the narrow end region 21.
• the holding plate 19 has a separate opening 27 in its uppermost position, which is elongated in rectangular shape in plan. As can be seen in particular from FIG. 12, this separate opening 27 is arranged in the middle of the uppermost layer and partially releases the underlying closure element V, in particular the area of the slide handle 26, which slide handle 26 is provided with a form-fitting recess 28 in the form of a slot.
• This form-fitting recess 28 is formed as a through opening, which in turn makes the third layer visible through this recess 28.
• the filter chamber 7 can essentially be closed by a drag cover T, which is pivotably attached to a bracket 29 projecting into the chamber opening 17.
• the pivot axis is provided with the reference number 30 and is in the range of chamber-side handle 14 opposite narrow side.
• the drag cover T is designed in the form of a plan so that, in a closed position of the filter chamber 7 according to FIG. 6, it dips essentially completely into the chamber opening 17. This has the further consequence that in a coaxial position of the housing 2 and the filter chamber 7 according to FIG. 1, the drag cover T is completely removed from view.
• the drag cover T has a suction nozzle 31 which, in the pivoted-in position, passes through the suction opening 22 of the holding plate 19 and projects into the dust filter bag 16.
• the suction nozzle 31 tapers towards its free end, so that its insertion into the suction opening 22 has a practically centering effect.
• a handle 32 is formed on the upper side of the drag cover T facing away from the chamber 7, which handle is used to open the chamber 7, after which the drag cover T is pivoted away in the simplest manner.
• a pivot plate 33 is pivotably arranged on the drag cover T via a hinge 34.
• the pivot plate 33 can be folded against the drag cover T via this hinge 34.
• the swivel plate 33 has a recess 35 for the passage of the suction port 31 on the drag cover.
• an expansion spring 36 is arranged.
• This spreading spring 36 is formed from a one-piece spring wire, first spring legs 37 being formed at each end. These are supported against the upper side of the swivel plate 33 facing the drag cover T. These first spring legs 37 each merge into a winding package 38 extending in the direction of the longitudinal central axis of the swivel plate 33.
• a substantially Y-shaped, two-legged spring leg 39 grows out of the inner end region of each winding package 38, the free end regions of the Y- Legs are shaped into eyelets 40.
• the spreading spring 36 is mounted in the area of its winding packages 38, for which purpose pivot pins 41 on the swivel plate side are immersed in these winding packages 38.
• the first spring legs 37 are supported against the upper side of the swivel plate 33 or within correspondingly shaped recesses, the spring legs 37 pointing in the direction of the hinge axis 42 formed by the hinge 34.
• the spring axis of rotation 43 formed in the region of the winding packages 38 is aligned parallel to the hinge axis 42 and forms a leg rotation center Z for the spring leg 39.
• the Y-shaped spring leg 39 starting from the winding packages 38 acts on the underside of the drag cover T in the region of its eyelets 40, which means that open drag cover T, the swivel plate 33 is slightly folded in a V-shape relative to the drag cover T.
• catch hooks 44 formed on the underside of the drag cover T, which at the same time form a stop 45.
• the catch hooks 44 which are arranged at a distance from the hinge axis 42, enter the eyelets 40 in the pivoted end position (cf. FIGS. 3 and 5).
• the spring 36 causes the pivot plate 33 to be spread apart from the drag cover T.
• the spring leg 39 with its eyelets 40 moves back along the underside of the drag cover T. in the direction of the stops 45.
• the catch hooks 44 of the stops engage 45 into the eyelets 40 of the spreading spring 36, whereby this swivel end position of the swivel plate 33 and the drag cover T is secured.
• the slide tracks on the underside of the cover, on which the eyelets 40 of the spring leg 39 move in the course of the pivoting movement of the pivoting plate 33, are formed in the end regions facing the stops 45 or fan hooks 44 in the form of ramp-like bevels 46 with an increasing in the direction of the stops 45 Height (see Fig. 5).
• the pivoting plate 33 which is pivotably mounted on the underside of the drag cover T, carries an actuating projection B which is displaceably mounted against the force of a molded-on spring element 47 which is designed in the form of a partial circular section B is always applied in a direction pointing towards the free end of the swivel plate 33.
• the swivel plate 33 and the actuation projection B provided with the spring element 47 are made in one piece, for which purpose the swivel plate 33 has a recess 49 in the region of the ring spring element 47 which accommodates the spring element 47 and the actuation projection B.
• this carrier section 50 forms a slideway for the actuation projection B when it moves along the guide 48.
• the actuating projection B carries a protruding actuating nose 51, which is oriented approximately perpendicular to the direction of extension thereof and which, in the course of closing the filter chamber 7 by means of the drag cover T, takes along the closure element V of the described holding plate 19 of the dust filter bag 16.
• an actuating foot 52 is associated with the actuating projection B in a side-by-side arrangement — related to the direction of movement of the actuating projection B — which are rigidly formed on the swivel plate 33.
• the mounting feet 52 are formed in the respective corner regions of the swivel plate 33 assigned to the actuating projection B on the underside thereof facing away from the actuating projection B. Furthermore, the arrangement is such that the mounting feet 52 are positioned outside the area of the integrated ring spring element 47.
• Each foot 52 has an irregular, triangular plan, essentially with reference to a side view according to FIG. 10.
• a bearing bore is provided for receiving a roller axis 53 of a mounting roller 54 assigned to the mounting foot 52.
• Positioning and diameter of each mounting roll 54 are selected such that an imaginary extension of the top of the swivel plate 33 and one transverse to the longitudinal extent of the swivel plate 33, the actuating projection B in the region of its actuating nose 51 touching the placement rollers 54.
• the actuating projection B with its actuating lug 51 finds the form-fitting recess 28 of the closure element V on the holding plate side.
• the pivot plate 32 pivots about the hinge 34 counter to the spring force of the spreading spring 36 in the direction of the underside of the drag cover T, which leads to a return displacement of the closure element V to release the suction opening 22.
• the closed position is shown in FIG. 6. It can be seen that the swivel plate 33 is folded against the drag cover T and is oriented essentially parallel to the drag cover T.
• registration protrusions 56 formed on the underside of the drag cover T enter recesses 57 in the pivot plate 33 on the rear with respect to the spring mobility of the actuation protrusion B.
• two registration projections 56 are provided, which move into separate recesses 57.
• the design is such that the recesses 57 are formed in the region of the carrier section 50 of the swivel plate 33.
• the registration protrusions 56 each have a run-up slope 58 which, in the closed state of the system, cause the actuation protrusion B to be positively controlled into a position that releases the spring force of the spring element 47.
• This has the advantageous effect that the spring element 47 is relieved in the open position of the dust filter bag closure, which position corresponds to the usual operating position of the vacuum cleaner, so that the permanent load on the components loaded by the spring element 47 is kept low. As a result, the static forces in the system are kept low when the mechanics are closed.
• the closure element V is displaced via the actuation projection B as a result of the spreading of the drag cover 33 by the spreading spring 36 into a position closing the suction opening 22 of the holding plate 19.
• the ends of the spring leg 39 designed as eyelets 40 slide along the underside of the drag cover T up to the stop-limited swivel end position.
• the run-up slopes 46 in the region of the stops 45 allow a high closing force in the end position, which ensures that the closing element V is brought into the position closing the suction opening 22.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Filters For Electric Vacuum Cleaners (AREA)
• Sampling And Sample Adjustment (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=7810290

Family Applications (1)

Country Status (6)

Families Citing this family (3)

Family Cites Families (2)

• 1996
  • 1996-10-29 DE DE19644897A patent/DE19644897A1/de not_active Withdrawn
• 1997
  • 1997-08-28 ES ES97114890T patent/ES2189908T3/es not_active Expired - Lifetime
  • 1997-08-28 DK DK97114890T patent/DK0839493T3/da active
  • 1997-08-28 DE DE59709219T patent/DE59709219D1/de not_active Expired - Fee Related
  • 1997-08-28 EP EP97114890A patent/EP0839493B1/de not_active Expired - Lifetime
  • 1997-08-28 PT PT97114890T patent/PT839493E/pt unknown
  • 1997-08-28 AT AT97114890T patent/ATE231704T1/de not_active IP Right Cessation

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