FR2463603A1 - BRUSH VACUUM - Google Patents

Abstract

HAND BRUSH-VACUUM CLEANER INCLUDING A CYLINDER-SHAPED ROTARY CLEANING ACCESSORY, IN PARTICULAR A BRUSH, AND A SUCTION AND FILTERING DEVICE. THE PART OF THE CRANKCASE RECEIVING THE DRIVE MOTOR 14 OF THE ROTARY CLEANING ATTACHMENT 10 IS MADE IN ONE PIECE WITH THE REAR WALL 4 OF THE SUCTION NOZZLE AND WITH THE LOWER HALF SHELL 5 SERVING AS HANDLE OF THE CASE PART 1, PROVIDED FOR GUIDANCE, AS WELL AS WITH RECEPTION RING 6 FOR FIXING THE DUST COLLECTOR 30 WITH DUST FILTER 33.

Description

1 2463603

  The invention relates to a hand-held brush dust extractor which is provided with a rotating cylindrical cleaning accessory, in particular a brush, and which has a filtering and suction device for the dirt detached by the brush. cleaning tool. The appliance is preferably used for cleaning furniture

  upholstered, mattresses, berths, car seats

  textile staircases, small staircases, landings and similar small-scale surfaces, preferably

textile layer ..

  In order to adapt to its use, the device is of the compact type so as to use the muscles of the hand and the arm as little as possible during its use and to maintain

  as low as possible the cost price of the device.

  The cleaning of upholstered furniture coverings, car seats, mattresses etc., was carried out so far

  passing on upholstered surfaces a vacuum cleaner

  so preferably a flexible handle, using a nozzle

  of small dimension, called 'nozzle for cushions'.

  In some types of apparatus the nozzle for cushions may be provided with a non-rotating brush, for example, a

border of brushes.

  Other appliance manufacturers recommend to clean upholstered coatings a hand-held brush that is

  equipped to be connected to the suction device.

  The owners of vacuums without flexible, called as-

  Hand-held hoists - or broom vacuum cleaners - must carry a cushion nozzle and move the device

  on the entire upholstered surface to be cleaned, which is

  glove and bulky because of the volume and weight of the device.

  To clean textile floor coverings, vacuum cleaners are used which are provided with an accessory that serves only to suck that of an accessory provided with a brush

  rotary driven by a separate motor.

  Special devices called suction brushes are

  especially used for cleaning the im-

  load bearing coated with a textile layer. These devices have

  a cylindrical brush element, rotating, driven by a motor and extending over the entire width of the apparatus,

  that a suction device having a filament device

  tragedy of dust. These devices are very effective but are not suitable for cleaning small surfaces, such as, for example, stair treads, steps, or even upholstered furniture,

bunks, mattresses.

  It is an object of the invention to provide an element for cleaning small surfaces such as steps, padded surfaces, car seats, etc., having a high degree of cleaning efficiency. which is easy to maintain and allows multiple use. This object is achieved according to the invention by virtue of the fact that the part of the housing receiving the drive motor of the rotary cleaning accessory is made in one piece with the rear wall of the suction nozzle and with the lower half-shell serving as handle of the crankcase part, intended for guiding, as well as with the receiving ring for fixing the dust collecting container

  to a dust filter. In a nozzle opening extends

  over the entire width of the apparatus and used for

  The cylindrical brush element can be mounted so that it can be rotated and driven by a belt by the motor which drives the fan at the same time. The rotating cylindrical brush element protrudes a few millimeters by its brush portion the edges defining the nozzle opening, so as to be able, during the cleaning of the textile floor coverings, to penetrate into them and to detach from the surface, as well as only from the base of the fabric, the dirt particles

who adhere to it.

  According to another embodiment of the present invention, the following is provided: The suction air stream flowing through the element

  rotating cylindrical brush that is produced by the breath-

  The unit carries the loose dirt particles from the rotating brush element into the collector

  dust that is equipped with the device.

  The dust collecting container is made simul-

  in the form of a high efficiency filter of

  so that dirt and dust from the draft

  3 Ä463603 ration are retained while the stream of purified air

leave the device.

  In order to be able to drive the cylindrical brush element

  At the rotary end, one of the ends of the motor shaft protrudes and has a belt disc transmitting the driving force to the drive belt of the cylindrical brush element. Preferably a

round elastic strap.

  To obtain a compact structure, the motor shaft

  projecting is as short as possible, the angle of bifurca-

  the belt relative to the motor shaft being

greater than 900.

  The housing of the apparatus comprises only three parts for reasons of industrial manufacture. The portion of the housing containing the drive motor of the cleaning accessory and the suction blower is at the same time the nozzle portion located on the side of the housing and the half-shell gripping located on the housing side. On the front side the casing is covered with the front half of

the nozzle.

  To complete the gripping part, one goes up on the lower half-shell of grip, made of a single

  piece with the casing, a half-shell top of prehen-

  which serves at the same time. closing element time for connecting the power supply wire to the network and for

the operating switch.

  In the nozzle cover or front-end part

  is provided with an access opening, provided with a piece of iron

  easily removable, which is used to install

  the belt and similar elements.

  The working air stream sucked by the blower, after leaving the nozzle portion, surrounds the engine and

  crosses the dust filter arranged afterwards.

  The dust filter includes a disposable filter paper filter that is surrounded by a textile filter bag. The purse-shaped filter bag, the disposable filter mounted thereon, is disposed on an annular support portion which is snapped onto a receiving ring of the housing of the apparatus and can be easily removed from the housing.

  this ring by actuating an unlocking button.

4 2453603

  The drive motor, for reasons of electrical safety, is surrounded on all sides by a housing made of thermoplastic material and which has on its upper side

  a channel- also serving as a holding element.

  This channel serves as a receiving chamber for the electrical wire extending from the grid connection or from the switch to the motor; it also constitutes the flow path for the cold air stream that is produced by

  a separate cold air flywheel disposed on the motor shaft.

  Inlets and outlets of cold air are

  placed opposite each other on the upper-side of the housing.

  The cold air enters and leaves following separate flow paths that are formed in this zone by a realization of

housing with double wall.

  The housing portion of the apparatus enclosing the motor at a distance has in the upper region a profiled receiving rail into which the motor is inserted with its mount congruent orifices in the motor housing and in the double zone. casing wall of the apparatus establish the mutual connection between the separate paths

  of cold air flow and flow sections.

  The invention is now described hereinafter in greater detail.

  tail for an exemplary embodiment with reference to the accompanying drawing, in which: - Figure 1 is a view of a brush vacuum cleaner according to the invention in axial longitudinal section; Figure 2 is a cross-sectional view along line II-II of Figure 1; Fig. 3 is a cross-sectional view along the line III-III of Fig. 1; FIG. 4 is an axial sectional view along the line IV-IV of FIG. 1, and partly in elevation; - Figure 5 is a top view of the housing according to the arrow X of Figure 1; and FIG. 6 is an axial top view of a device

  latching for the dust collecting container.

  The casing of the apparatus comprises a central casing part 1, a nozzle plate 2 and an upper gripping half-shell 3. The central housing part 1 is made of a

25463603

  single piece with the rear nozzle wall 4 and the half

  lower shell 5, as well as with the receiving ring 6 for the dust collecting container 30. On the upper horizontal part of the central part of the casing 1, facing the lower half-shell 5 are provided with inlet and outlet ports 7 and 8 for the cold air stream. The nozzle plate 2 is provided with a 38 square access opening which is closed with a cover 9 by a

simple snapping

  After assembly, the central casing portion 1 forms with its nozzle rear wall 4 and the nozzle plate 2 a suction nozzle adapted to receive the cleaning accessory in the form of a roll brush 10, and for this purpose comprises

  mounting elements 11 in the lower area for accesso-

cleaning 10.

  The drive belt 12, which is applied on one side to the pulley 13 of the motor shaft, embraces in the form of a cross-belt element the cleaning accessory 10 mounted at 90 relative to the motor axis. The motor 14 is surrounded on all sides by a motor casing 15 which has on its outer side a channel 16, substantially in cross section, as seen in FIGS. 2 and 3, and which extends over the entire length, said channel having on its free longitudinal edges a fastening profile 17, of cross section for example L-shaped. The channel 16 is shared by a transverse partition 18, 19 provided in each of its two end zones in sections 20, 21 , -22. Section 20 constitutes the inlet chamber and section 22 the current outlet chamber

  ) cold air; section 21 constitutes the circulation chamber.

  On the front outer face of the motor housing 15 is the end 39 of the shaft protruding from the housing 15. It fixes the steering wheel of the blower 23. The end of the shaft

  39, of convex shape, forms the belt pulley 13.

  Inside the housing 15 of the engine is mounted the engine 14 manufactured selon a known embodiment. The engine 14 carries on its shaft the blower wheel 25 producing

  the cold air flow. The cold air needed for cooling

  drainage is drawn through the inlet port 7 on

  the upper side of the central part of the housing of the

6 2463603

  it flows through the double-walled portion 7 'of the housing

  1, enters through the chamber 20 in the engine casing 15,

  The engine 14 is poured in to absorb the heat and leaves the engine casing 15 through the cold air handwheel 25, through the outlet chamber 22 into the channel 16 and out through the exit aperture 8 after traveling to through the area

double wall 8 'of the casing 1.

  The working air sucked in by the wind tunnel steering wheel

  21 through the nozzle orifice 26, and passing on the rotating rotatable cylinder 10 according to Figure 1, flows through the intermediate space between the outer face of the motor housing 15 and the inner face of the central portion of the casing 1, into the dust collecting container 30.

  To be able to fix the motor 14 inside the

  central part of the casing 1, it is provided, as seen in the figure, on the inner wall of the housing in the upper zone two profiled support rails 27 disposed at a distance from one another and between which is introduced the channel 16 made in one piece with the motor housing 15 and provided at its upper portion of profiled liners 17, so that the motor housing 15, with its complete motor mounted to

  inside, is held motionless and is fixed

  tionally by a screw 43 through the rear flange 44

of the crankcase 15.

  Ports 28 and 29 establish the connection with the chamber.

  20 and the exit chamber 22 for the journey

  flow of the cold air stream.

  The conductor 40 supplying the current to the drive motor

  is guided between the gripping half-shells 3 and 5,

  passes behind the switch 41 and is introduced by the opening

  29 in the conduction chamber 21, to establish an electrical connection with the motor 14, a capacitor 42 of deworming, cylindrical, being in the chamber of

conduction.

  The dust collection container 30 comprising an outer casing 31 and a fixing ring, as well as a disposable filter 33, a bag funnel 34, and a clamp ring 35, is received in the receiving ring 6.

  formed in the rear end of the housing 1 of the apparatus.

  7 h 24 63603 A snap button 36 located on the central part of the casing 1 in the region of the receiving ring 6 cooperates by a tongue 37 of insertion, parallel to the axis

  A, when mounting the fixing ring 32, with a

  5, in this way, the fixing ring 32, as well as the bag envelope 31 fixed on it and the inserted filter 33 with the funnel 34 and the ring.

clamping 35 are fixed.

  The lower half-shell 5 prehnesion manufactured in one piece with the housing portion 1 is covered by an upper half-shell 3 gripping which engages below the nozzle plate 2 by a piece 48 in recess tongue shape, and can be clamped against the lower gripping half-shell by means of a single detachable connecting element, for example a screw 49, while between the upper half-shell 3 and the lower half-shell 5 are introduced a connecting conductor to the network 40 and an angled protective sleeve enclosing the latter, which are fixed with a switch 41 of operation inserted at this point by -the element of

link 49.

  The switch 41 has an actuating button de-

  passing from the upper half-shell gripping 3; he

  used to switch on and off the drive motor -

  cleaning accessory and the wind tunnel

suction of air.

  In order to allow the introduction of the fixing ring without actuation of the snap-fastening knob 36 biased by a spring, there is provided on the ring 32 a short bolt 46, at a radial distance, which can be introduced into a bore 47

  corresponding in the receiving ring 6.

  The brush vacuum cleaner according to the present invention is advantageous because it consists of small parts, easy to manufacture; it allows easy maneuvering, only a slight bending moment being produced on the vertical axis A, whereas, thanks to the handle located above the motor 14, it can be conveniently guided by a

only hand.

Claims (13)

  A hand-held vacuum cleaner comprising a cylinder-shaped rotating cleaning accessory, in particular a brush, and a suction and filtering device, characterized in that the part of the housing receiving the drive motor (14) of the rotary cleaning accessory (10) is manufactured   in one piece with the rear wall (4) of the nozzle of   and with the lower half-shell (5) serving as a handle of the housing part (J), provided for guiding, as well as with the receiving ring (6) for fixing the dust collecting container (30). ) with filter dust (33).   2. Brush vacuum cleaner according to claim 1, characterized   in that the nozzle rear wall (4) of the housing part, in connection with a nozzle plate (2) which is fixed thereto, forms on both sides of the nozzle orifice (26) a device (11) for the elements of   mounting of the cleaning accessory (ll.   3. Brush vacuum cleaner according to claim 2, characterized   in that the nozzle plate (2) comprises in its central zone an access orifice (38), closable by a removable cover (9), the cover (9) closing the orifice (38) being held by a latching device made of a single   piece with the lid or with the nozzle plate (2).   4. Brush vacuum cleaner according to claim 1 or 2,   characterized in that the motor casing (15) provided for receiving the motor (14) is provided with a flexible insert (16)   a canal and whose longitudinally extending edges   take a profile (17) having for example an L-shaped cross-section - Brush vacuum cleaner according to Claim 4, characterized in that the inner surface of the housing part 1 receiving the motor (14) is provided with rails (27) extending parallel to the longitudinal central axis A and dnnt cross section is adapted to the profile of the edges of the insert (16) of the motor housing (15) and ensures, after insertion of the insert (16) the maintenance of the motor housing so that it can not turn, the motor housing (15) introduced into the rails (27) by its insert (16) being then stabilized by a removable connection (43), preferably by a 9 2463603   screw (43), against unwanted unlocking.   6. Brush vacuum cleaner according to claim 4 or 5, characterized in that the channel-shaped insert (16) is subdivided into a plurality of sections (20, 21, 22) by transverse walls (18), the housing wall motor (15) having, within at least one of the divided sections (20, 21, 22), indentations (28) to allow access to the interior of the motor housing (15)   7. Brush vacuum cleaner according to claim 6, characterized   in that, when the motor is mounted, at least one of the sections (20, 22) is intended to be congruent with at least one of the openings (28).   Brush vacuum cleaner according to claim 7, characterized in that the opening (28) in connection with a section (20)   of the channel-shaped insert (16) of the motor housing   (15), and the housing wall interrupted in the area of at least one section of the insert, form a   access for cold air to the inside of the crankcase (15).   9. Brush vacuum cleaner according to claim 7 or 8, characterized   characterized in that the orifices (28) on the inner wall of the part of the housing (1) receiving the motor (14) are connected by channels (7 ', 8') to the outer face of the housing part by inlet openings (7) or outlet openings (8), the channels (7 ', 8') being separated from each other by the channel-shaped insert (16) and being formed by a double wall construction of the casing (1) in its part enclosing the motor (14).   The brush vacuum cleaner according to claim 9, wherein   characterized in that the channels (7 ', 8') at locations of the housing (1) separated from each other are in communication with the outside air via a plurality of small openings (7, 8), square examples, slit-shaped,   arranged next to each other.   11. A brush vacuum cleaner according to any one of the   1 to 10, characterized in that in the area of the receiving ring (6) formed on the housing (1) and receiving the dust collecting container (30) there is provided an element   latching device (37), in particular an interlocking tongue   stage (37) having a pusher (36) biased by a spring.   12. The brush vacuum cleaner according to claim 11, characterized   in that, to introduce the collecting container   dust (30) in the receiving ring (6) without   the snap-in element (36, 37), a bolt (46) is   seen at a certain radial distance on the fixing ring and a corresponding bore (47) is provided on the receiving ring (6) to receive the bolt (46), the fixing ring (32) having a notch slot shape for   receive a plug-in tab (37) belonging to the locking device.   13. A vacuum cleaner according to any one of the   1 to 12, characterized in that the lower half-shell   handle (5) made in one piece with the housing part (1) is covered by an upper half-shell (3) which engages under the nozzle plate (2) by a part (48) in offset   shaped like a tongue, and can be wandered against half   lower shell (5) gripping by means of a single removable connecting element, for example a screw (49, while between the upper half-shell (3) and the lower half-shell (5) are ixfroduits a connecting conductor   to the network (40) and an angled protective sleeve (50)   loppeant the latter, which are fixed with a switch (41)   operating system inserted at this point by the link sound (49).