FR2855038A1 - Cyclone-type domestic vacuum cleaner for removing dust and dirt, has tube connecting brush and body, where predetermined part of tube is arranged in shape of handle to be gripped by user - Google Patents

Abstract

The cleaner has a brush to suck air containing dust, and a body to apply a sucking force to the brush. A tube (7) connects the brush and body, such that the air can circulate in the tube. The tube is equipped of a cyclone type dust collector (21). A predetermined part of the tube is arranged in the shape of a handle (60) to be gripped by a user.

Description

The present invention relates to a handle tube

  and a vacuum cleaner equipped with the handle tube, and in particular a handle tube equipped with a cyclone-type dust collector and a vacuum cleaner equipped with the handle.

  A vacuum cleaner is a device used to remove dust and dirt on a surface to be cleaned, air being forced to circulate under the effect of the rotation of a motor so that the inside of the body of the vacuum cleaner is brought into a vacuum state and the dust and dirt are absorbed into the device together with the air drawn in due to intense ventilation caused by the pressure difference produced between the inner side and the side outside the body of the apparatus, which results in the removal of dust and dirt.

  In addition, a cyclone-type dust collector is a device for separating particles from a fluid under the action of centrifugal force. Due to the advantage of simple construction and durability against high temperature and pressure, such a cyclone type dust collector has been widely used in the industrial field for a long time. and is also used in a vacuum cleaner.

  A representative example of a cyclone provided with a cyclone-type dust collector is described in Korean patent application N 1999-20704 entitled "Cyclone Dust Collector for Vacuum Cleaner", filed in the name of the applicant request.

  FIG. 1 appended to the present application is a perspective view showing a vacuum cleaner comprising a cyclone-type dust collector described in the patent application mentioned above.

  As can be seen in the drawing, the conventional vacuum cleaner 1 fitted with a cyclone-type dust collector 21 comprises: a vacuum cleaner body 3, a flexible hose 9 connected to the vacuum cleaner body 3, a tube extension 8, a handle tube 7 connected between the flexible pipe 9 and the extension tube 8, and a cyclone-type dust collector 21 mounted between the handle tube 7 and the extension tube 8.

  The vacuum cleaner body 3 is divided into a dust collecting chamber (not shown), in which is disposed a dust bag (not shown), and a load drive chamber (not shown), in which is housed a suction motor (not shown) used to absorb the air which contains external dust in the dust collection chamber.

  The distal end of the extension tube 8 is joined to a brush 10 and the brush 10 is arranged so as to come into contact with a surface to be cleaned, for example a floor covered with laminated paper, and a carpet, the lower side. of the brush 10 being provided with an inlet opening.

  The cyclone-type dust collector 21 is mounted between the handle tube 7 and the extension tube 8 and removes dirt such as dust contained in the air, under the action of centrifugal force.

  The handle tube 7 is provided with a handle located on one side of the tube so that the user can easily grip the handle tube 7.

  With the above-mentioned arrangement, when the electric power source is connected, the air, which contains dirt such as dust, is sucked in by the inlet opening of the brush 10 under the action of 30 the suction force produced by the drive of the suction motor. Air circulates along the extension tube 8 and enters the cyclone-type dust collector 21. Dirt having large sizes or paper scraps is separated from the air by centrifugal force, while the air entering the cyclone-type dust collector 21 forms swirling air streams and moves towards the closed end of the cyclone-type dust collector. Separate dirt and the like descend down the interior wall of a dirt collection receptacle 25 and are collected in the bottom of the receptacle.

  The purified air moves along the handle tube 7 and the flexible hose 9 mounted between the handle tube 7 and the vacuum cleaner body 3, then enters the vacuum cleaner body.

  The processes for entraining and collecting dust, executed in the dust collecting chamber (not shown) of the vacuum cleaner body are identical to those executed in the conventional vacuum cleaner 1.

  However, in such a conventional vacuum cleaner, it is necessary to provide separately a handle on the handle tube, and in particular, when a cyclone-type dust collector is provided, the load of the handle tube is concentrated in a way non-uniform around the cyclone type dust collector. Therefore, it is difficult to evenly move the vacuum cleaner, including the handle tube.

  In addition, in such a conventional vacuum cleaner, the suction drive force of the vacuum cleaner body 25 follows a long transfer path including the brush, the extension tube connected to the brush, the cyclone-type dust collector, the handle tube connected to the cyclone-type dust collector and a flexible pipe mounted between the handle and the vacuum cleaner body and by which the driving force partially decreases.

  This is why there is a problem that the dust collection capacity of the cyclone type dust collector is reduced.

  Therefore, the object of the present invention is to eliminate the above mentioned problems arising in the prior art and an object of the present invention is to provide a handle tube for a vacuum cleaner which is of simple arrangement and is easy for a user to grasp when cleaning, and provide a vacuum cleaner equipped with the handle tube.

  Another object of the present invention is to provide a light handle tube for a vacuum cleaner, which is provided with a handle-shaped air flow passage, which has the effect that a separate handle is not not 10 necessary, and to supply the vacuum cleaner equipped with the handle tube.

  Another object of the present invention is to provide a handle tube for a vacuum cleaner equipped with a handle-shaped air flow passage, which in turn is provided with a cyclone-type dust collector, and provide a vacuum cleaner equipped with the handle tube.

  To achieve the aforementioned objectives, in accordance with the present invention, there is provided a vacuum cleaner comprising a brush capable of sucking air containing external dust, and a vacuum cleaner body for applying a suction force to the brush, characterized in that the vacuum cleaner further comprises a handle tube interposed between the brush and the body of the vacuum cleaner for connecting the brush and the body of the vacuum cleaner so that air can circulate in the handle tube, a predetermined part of the handle tube being arranged in the form of a handle to be gripped by a user.

  In addition, it is advantageous that the handle is bent twice between a distal end to be connected to the brush and a proximal end to be connected to the vacuum cleaner.

  The vacuum cleaner may further include a knurled portion formed on the exterior surface of the handle.

  The vacuum cleaner may also include a cyclone-type dust collector installed in the handle tube.

  In addition, the cyclone type 5 dust collector preferably comprises a cyclone body which brings the air circulating in the tube with a swirl handle, separates the dust by centrifugation and discharges it, and a receptacle for collecting dirt for collect separate dust centrifugally, the receptacle being removably attached to the cyclone body.

  It is preferable that the cyclone body includes a suction port in which air, which contains dust and circulates in the handle tube, is caused to swirl, an exhaust port for exhausting air, from which the dust has been removed, and a grid joined to the discharge orifice to breathe the dirt.

  Furthermore, in order to achieve the objectives indicated above, in accordance with the present invention, there is provided a handle tube for a vacuum cleaner, interposed between a brush capable of sucking air which contains external dust and a vacuum cleaner body for sending a suction force to the brush, characterized in that the air flow passage for interconnecting the brush with the vacuum cleaner body is arranged in the form of a handle which can be grasped by a user.

  It is preferable that the handle tube for vacuum cleaner further comprises a cyclone-type dust collector.

  Other characteristics and advantages of the present invention will emerge from the description given below, taken with reference to the appended drawings, in which: - Figure 1, which has already been mentioned, is a perspective view of 'a conventional vacuum cleaner fitted with a cyclone-type dust collector according to the prior art; - Figure 2 is a side elevational view of a handle tube for a vacuum cleaner according to the present invention, the handle tube being equipped with a cyclone type dust collector; and - Figure 3 is a cross-sectional view 10 of the handle tube shown in Figure 12.

  As will be described below, the preferred embodiments will be described in more detail with reference to the accompanying drawings. In the discussion which follows of the embodiment of the present invention, identical reference numerals can be provided for the elements having the same arrangements and the same functions as the conventional device described above.

  Figure 2 is a side elevational view of a handle tube for a vacuum cleaner, the handle tube being fitted with a cyclone-type dust collector.

  In particular the handle tube shown in Figure 2 has an improved arrangement such that a circulation passage of the handle tube is shaped so as to have a handle shape, which has the effect that a separate handle is not necessary and the handle tube is light.

  The vacuum cleaner equipped with the handle tube, which includes the cyclone-type dust collector, comprises a brush 10, a vacuum cleaner body 3, a flexible hose 9 connecting the brush 10 and the vacuum cleaner body 3, the tube with handle 7 installed between the flexible hose 9 and the brush 10, and an extension tube 8 having a distal end connected to the brush 10 and a proximal end 35 connected to the tube with handle 7. Since the vacuum cleaner body 3 , the flexible pipe 9, the extension pipe 8 and the brush 10 are similar to those indicated in FIG. 1, they have not been shown in FIG. 2.

  The vacuum cleaner body 3 is divided into a dust collection chamber 5 (not shown) provided in the vacuum cleaner body 3 and receiving a dust bag (not shown) and a driven load chamber (not shown) housing a suction motor (not shown) for introducing air which contains external dust into the dust collection chamber.

  The distal end of the extension tube 8 is joined to the brush 10 and the brush 10 is in contact with a surface to be cleaned such as for example a floor covered with laminated paper or a carpet, the lower side of the brush 10 being provided with an entrance opening.

  A predetermined part of the handle tube 7 is provided with a handle 60 to be gripped by a user, so that the user can easily grip the handle tube 7. The handle tube equipped with the cyclone-type dust collector is described with reference to Figure 3. Figure 3 is a cross-sectional view showing the mounting arrangement of the cyclone type dust collector. In the drawings, the reference numeral I indicates the front side of the handle tube.

  The handle tube 7 comprises a cyclone-type dust collector 21 mounted on the handle tube 7, and a body 30 of the handle tube.

  The body 30 of the handle tube comprises a first flow line 39 and a second flow line 41, the first and second flow lines 39, 41 being located in an upper part and in a lower part with respect to a block wall 53 in the body 35 30 of the handle tube.

  The first flow duct 39 is provided with an inlet 35 for the air communicating with the brush 10 in front of the handle tube 7, and a suction orifice 37 connected to one side of the cyclone-type dust collector 21 on the back of the handle tube 7.

  The second flow duct 41 has an air outlet 47 communicating with the flexible pipe in the rear part of the handle tube 7, the air outlet and an exhaust orifice 43 connected to the dust collector of 10 cyclone type 21 on the front of the handle tube 7.

  The second flow conduit 41 is arranged in the form of a double bent structure so that a handle space 65 is formed entirely below the handle tube 7 so as to allow a user to easily grasp the handle tube 7.

  In addition, the second flow conduit 41 is spaced behind a dirt collection receptacle 25 so that the dirt collection receptacle 25 is removably attached to the cyclone body 55. The distance "d" between the rear end of the dirt collection receptacle 25 and the second flow conduit 41 is determined such that the dirt collection receptacle 25 is easily attached to or detached from the handle tube 7.

  A knurled portion can be formed on the outer surface of the handle 60 so that the user can securely hold the handle tube 7 without the handle tube 7 slipping. Otherwise, a series of folds or ribs can be partially formed on part of the outer surface of the handle 60, with different shapes.

  The cyclone-type dust collector 21 includes the cyclone body 55 as well as the receptacle 25 for collecting dirt, detachably attached to the cyclone body 55.

  Cyclone body 55 includes a suction port for sucking in air, and through which air, which contains dust and enters the handle tube 7, is caused to swirl, the exhaust port 43 to evacuate the air after the dust has been separated by centrifugation, and a grate 70 for separating dirt, fixed to the evacuation orifice 43 and formed with a plurality of fine passage holes 44.

  It is preferable that the cyclone body 55 has a cylindrical shape corresponding to the shape of the dirt collection receptacle 25.

  The dirt separation grid 70 has a cylindrical shape comprising the plurality of small through holes 44 formed in the circumference, and an opening 45 formed at one end of the grid. The opening 45 serves to evacuate the air which has entered the grid 70 for separating the dirt by means of the small passage holes 44.

  In addition, an antireflux element 50 extends from the grid 70 for separating dirt in the direction of the bottom of the receptacle 25 for collecting dirt.

  When a source of electrical energy is applied to the handle tube having the arrangement 25 mentioned above, air, which contains dirt such as dust, is sucked in by the air inlet formed in the brush 10 by a suction force generated by the driven suction motor. Next, air enters the interior of the cyclone dust collector 30 21 via the extension tube 8 connected to the brush 10.

  Air entering the interior of the cyclone-type dust collector 21 enters the interior of the cyclone-type dust collector 21 in an oblique direction through the suction port 37 formed in the body of the cyclone 55. As a result, air, which contains dirt such as dust, forms swirling air currents and begins to move towards the closed end of the cyclone dust collector 21.

  During this process, dirt with large grain sizes or paper scraps in the air is separated from the air by centrifugal force. The separated dirt descends along the inner wall of the dirt collection receptacle 25 of the cyclone-type dust collector 21 and is collected in the lower part of the cyclone receptacle 25. The process of entrainment and collection of dust performed in the dust collection chamber (not shown) in the vacuum cleaner body 3 is similar to that executed in the conventional vacuum cleaner 1.

  In the embodiments described above, the description is made in conjunction with a handle tube provided with a cyclone-type dust collector and a vacuum cleaner equipped with the handle tube.

  However, there is no doubt that the present invention can be implemented in a variable manner in the form of a handle tube comprising only one handle 25 without cyclone type dust collector, and a vacuum cleaner equipped with such a tube. handle.

  In accordance with the present invention described above, it is not necessary to provide a separate handle on the handle tube and therefore it is possible to use a simple and light handle tube.

  This is why the vacuum cleaner can be used more conveniently.

  In addition, the path for transferring the suction drive force from the suction motor 35 into the vacuum cleaner body can be reduced. This is why the dust collection capacity of the vacuum cleaner can be improved.

  Although the preferred embodiments of the present invention have been shown and described with reference to the preferred embodiments of the invention, the present invention is not limited to these embodiments. It will be understood that various changes and modifications can be made by those skilled in the art without departing from the scope of the invention. It is believed that such changes, modifications and the like are all included within the scope of the present invention.

Claims (9)

  1. A vacuum cleaner comprising a brush (10) capable of sucking in air containing external dust, and a vacuum cleaner body (3) serving to apply a suction force to the brush, characterized in that the vacuum cleaner further comprises a handle tube (7) interposed between the brush (10) and the body of the vacuum cleaner (3) to connect the brush and the body of the vacuum cleaner so that air can circulate in the tube 10 handle, a predetermined part of the handle tube (7) being arranged in the form of a handle (60) to be gripped by a user.   2. Vacuum cleaner according to claim 1, characterized in that the handle (60) is doubly angled between a distal end to be connected to the brush (10) and a proximal end to be connected to the vacuum cleaner (3).   3. Vacuum cleaner according to claim 1, characterized in that a knurled part is formed on the outer surface of the handle.   4. Vacuum cleaner according to claim 2, characterized in that a knurled part is formed on the outer surface of the handle (60).   5. Vacuum cleaner according to claim 1, characterized in that it further comprises a cyclone-type dust collector (21) installed on the handle tube (7).   6. Vacuum cleaner according to claim 5, characterized in that the cyclone type dust collector (21) comprises: a cyclone body (55) which brings the air circulating in the tube with a swirl handle, separates the dust by centrifugation and discharge, and a receptacle (25) for collecting dirt for collecting centrifugally separated dust, the receptacle being detachably fixed to the cyclone body.   7. Vacuum cleaner according to claim 6, characterized in that the cyclone body (55) comprises: a suction orifice (37) into which air, which contains dust and circulates in the handle tube, is supplied to whirl, a discharge port (43) for discharging air, from which the dust has been removed, and a grid (70) joined to the discharge port for filtering dirt.   8. Tube with handle for vacuum cleaner, interposed between a brush (70) capable of sucking air which contains external dust and a vacuum cleaner body (3) to send a suction force to the brush, characterized in that the air flow passage for interconnecting the brush to the vacuum cleaner body is arranged in the form of a handle (7) which can be grasped by a user.   9. Handle tube according to claim 8, characterized in that it further comprises a cyclone-type dust collector (21).