Brush for a vacuum cleeaner with tube conduit for inhalation
Kind Code:

A vacuum cleaner brush with a flexible internal suction pipe (100), in plastic material and items in plastic or steel, intended for application to all types of domestic or for community vacuum cleaners, fitted with a single articulated joint or with a double articulated joint compared with two axes (136, 144), parallel to the ground, fitted in centre line with a flexible pipe (120) rigidly connected to the central connection (116) of the suction split (112) on one side and on the other, to the rigid pipe (132) of the upper and main articulated joint (142), between which a connection (146) is inserted, with the possibility of oscillation-rotation, second (150), without however allowing the retraction ram with an axial retaining ring also placed between them (148), producing a continuity without possibility of any loss in the joins for the pipe (120).

Spinelli, Paolo (Larciano (PT), IT)
Application Number:
Publication Date:
Filing Date:
Primary Class:
International Classes:
View Patent Images:
Related US Applications:
20100088835WORM DRIVE ASSEMBLY FOR AGITATORApril, 2010Crouch et al.
20020014273Manufacturing process for the pouf/puffFebruary, 2002Masterson
20070136979Vacuum cleaner with electronic controllerJune, 2007Zahuranec
20090101163Substrates and devices for applying a lip care formulationApril, 2009Brunner
20050198761Rear wiper bracket assemblySeptember, 2005Baskerville et al.
20050011030Ergonomic brush with magnetJanuary, 2005Gonzalez
20060101600Mop head connectorMay, 2006Weaver
20050217054Wiper blade connecting structureOctober, 2005Ohe et al.
20080040879Twisting mechanism for dusterFebruary, 2008Yang
20070039124Exhaust structure of vacuum cleanerFebruary, 2007Kang

Foreign References:
Other References:
WO2005074779A1 (machine translation), 2005
Primary Examiner:
Attorney, Agent or Firm:
1. A vacuum cleaner brush with flexible internal suction pipe (100), in plastic material and items in plastic or steel, intended for application to all types of domestic or for community vacuum cleaners, fitted with a single articulated joint or with a double articulated joint compared with two axes (136, 144), parallel to the ground, fitted in centre line with a flexible pipe (120) rigidly connected to the central connection (116) of the suction split (112) on one side and on the other, to the rigid pipe (132) of the upper and main articulated joint (142), between which a connection (146) is inserted, with the possibility of oscillation-rotation, second (150), without however allowing the retraction ram with an axial retaining ring also placed between them (148), producing a continuity without possibility of any loss in the joins for the pipe (120), transferring all suction power generated by the vacuum cleaner to the ground, with the present brush (100) fitted with all accessories and technical devices present in the normal brushes being traded, such as the mobile or fixed frontal brush (124), mobile or fixed rear gasket (126), pedal (160) and lifting mechanism, double pair of wheels in addition to the two articulated joints (136, 144) and rotation (150).

2. The brush (100) as in claim 1 fitted with a suction pipe (120), between the slit (112) and the articulated connection (132), achieved with a flexible tube to a rigid envelope reinforced with spirals or metal rings to maintain the appropriate constant air and dust passage section and therefore not to be squashed due to the vacuum produced by the vacuum cleaner inside the tube itself.

3. The brush (100) as in claim 1, where the split (112) is connected to a specific sleeve collar (116) connectable to the flexible pipe (120) with a clamp or clamping ring without blow-byes or concentrated load losses due to the said connection.

4. The brush (100) as in claim 1, fitted with a rigid connection and to the sleeve collar (132) of the oscillation articulated joint (142), of the flexible tube (120) for the purpose of eliminating losses from the suction flow in the adjustment zones in brush with handle or rigid tube, connected with the terminal pipe (146) of the articulated joint in work positions.

5. The brush (100) as in claim 4 where the transversal pipes (112), the connection pipe (116), the flexible sleeve collar (120) and subsequent connections (132,146) of the connection to the vacuum cleaner have a section almost constant for a maximum yield or without additional losses and with noise reduction.

6. The brush (100) as in claim 1, fitted with front, fixed or mobile linear brush (124) in vertical (166) by itself or together with the gasket (126), for the purpose of cleaning of carpets, using the pedal (160) with bistable metal spring mechanism or in synthetic resins.

7. The brush (100) as in claim 1, fitted with one or two pairs of wheel supports, (118) and (154), one of which acts as the primary oscillation axle (140) with regard to the support flat in the ground of the entire brush.

8. The brush (100) as in claim 1, fitted with final sleeve collar (146) oscillating (150) around its own axle fitted with a ring (148) placed between the female (152) and male (146) sleeve collar.

9. The brush (100) as in claim 1, fitted with an oscillation axle corresponding to the axle (144) of the main complete support wheels system, with the possibility of a second oscillation axle (136) in centre line on the short side of the base of the brush.


The present utility model patent is aimed at the domestic cleaning tools sector. More specifically it is directed at the tools used with normal vacuum cleaners.

Currently the vacuum cleaner brushes intended for the cleaning of domestic floors and carpets make a simple fluctuation or double or articulated joint system available to adjust the rigid tube tilt, held up and guided by the operator, to the brush rested on the floor to be cleaned intaking air, dust and cleaning of the floors and carpets via specific areas and sections. The said articulated joints, with a double or single tilt, simply presenting pipes conjugated and hinged between themselves achieving in final pipeline formed of two or three continuous elements oscillating between themselves and so as to offer a modest and approximate peripheral seal, exclusively assessable by the tolerance of the connection of two or three pipelines, with tolerance being generally quite slack even for the kind of plastic materials with which they are achieved. This manufacturing-related factor produces a serious loss of air flow and especially from the vacuum produced by the suction machine intaking with obvious shrinkage or loss of global yield and this in total disharmony with the current energy recovery concepts.

Specifically, the present brush, with an appearance similar to those already present on the market, uses a sucked air flow system and technique, via this itself, guiding to a high yield with a specific flexible pipeline never used or applied as regards similar tools.

The present utility model patent achieves a brush for the cleaning of floors of any type both for ceramic paving tiles and of marble or parquet in strips of wood or plastic, then, as for all of these brushes, connected to a handle in metal or plastic tube which operates from the rigid pipe between the brush itself and the flexible tube directly connected to the vacuum cleaner or to the centralised domestic suction system.

The present brush, besides being equipped with all devices present on the better brushes present on the market shows, in one single way, a flexible pipe rigidly connected to a suction tube end and to the other with a linear split or fissure connection placed on the wide base of the same brush, flexible pipe, which avoids all of the three filaments of losses of intaken air via the normal articulated joints.

Indeed, the present brush, presents, as has been said, all of the better devices to optimise the various types of cleaning or suction for which it shall be used, being equipped with a practical double jointing system for adjustment of the brush level with a rigid tube axle or even a handle with support wheels from the articulated joint itself, being equipped with a lesser metal suction level shaped with split lateral openings for returning action and small wheels supporting such a level capable of eliminating possible sliding on the ground of the level itself, being supplied with fixed and mobile gaskets to isolate the suction or splits zone and therefore also equipped with a two position control lever established to position the aforesaid gaskets according to the types of surfaces to suction, or, floors or carpets.

Therefore the present brush, besides evidencing all of this equipment, quite recurrent in part or “as a whole” and also on others present on the market, connects, in accordance with the solution described herein, the flexible tube connection connected between the first articulated joint, to the suction tube and the central slot connection or transversal brush work split. This rigid section flexible tube, connected to the appropriate fixed ends and with a tin seal guarantees secure continuity between the dusty air suction zone and the rigid pipe, also with the so called handle of the vacuum cleaner, operating without any loss of load owing to fissures or perimeters, in the articulated joint zone, without a sure seal, thus offering a suction circuit yield, also greater than 50% with regard to the normal brushes and tubes with articulated joint in suction. Indeed, with this system there are no substantial variations in the suction section between the brush resting on the ground, the connection, flexible sleeve collar and the main suction tube with reduction of noise and a greater yield with regard to the other tools similar available for purchase.

Diagram 1 enclosed shows a view from on high of the brush in the appropriate assemblage.

Diagram 2 enclosed is instead the median AA section of Diagram 1 and shows the flexible pipe between the brush and the vacuum cleaner tube in accordance with the present Utility Model.

Diagram 3 shows a view of the brush without the connection element between the two articulated joints but shows the flexible tube.

Diagram 4 is the BB section of Diagram 3 in which internal connections and the present details of this brush are shown.

Diagram 5 essentially relates to the CC section where the gaskets commutation lever is shown from the flooring position to that for carpets.

Diagram 6 shows a view from the bottom of the brush rest level flat.

Now moving on to an examination of the preferred solution for the achievement of the present brush; to the numeric references indicated in the enclosed drawings, the following meanings as mentioned and reported hereinafter shall be attributed.

100 Brush for vacuum cleaner in its own assemblage made in plastic materials composed of various functional elements fitted with a double articulated joint, gasket and front mobile brush in vertical for use on floors or carpets, two wheel couples, slot or suction split but especially fitted with a flexible tube for connection between the suction split and the vacuum cleaner connection tube, pipe without dispersions or accidental or concentrated load losses.

110 Body or frame carrying the brush itself is the structural element in plastic material.

112 Transversal pipe or slot of suction split with connection central to the vacuum cleaner suction pipe, is used for sheet pressing but also pressing of plastic material; glued to it are a couple of small anti-friction and wear and tear sliding blocks as on any other brush.

114 Indication arrows from the reverse suction or air flow to the main tube or pipe.

116 Connection or pipe linking between 112 and 120 flexible sleeve collar which is the main subject of the present Patent.

118 A pair of wheels on brush support flat avoid ground friction between surfaces lower than the same and the ground.

120 Flexible sleeve collar placed between articulated joint 132 higher pipe on the second fulcrum, and connecting connection 116 of 112, is the most important detail and in accordance with the present Patent's solution, it is achieved with a flexible tube fitted with rings or metal spirals to reinforce the extreme surfaces of the tube itself which, due to internal suction, might be deformed and close towards the centre with the present sleeve collar having an air passage section equal to 116 and 132-146 and also to connection 112, not creating in these transit zones different between their turbulences thus producing a major yield and minor losses.

122 Clamp, by way of example, of the setting of 120 to 116.

124 Front fiber brush, present on the front of 100 as is the case for almost all for all of the vacuum cleaner brushes available on the market; can be lifted and lowered to the ground, with a pedal mechanism schematized in 160.

126 Rear seal gasket with functions similar to 124; it can be raised or lowered together with 124 but can also be fixed.

128 Profile less than U fixed on 110 for stiffening and support of wheels 118.

130 Greater fairing applied to 110.

132 Rigid upper articulated joint pipe towards the suction tube; the upper end of 120 is connected to this.

134 Intermediate oscillation support between brush body 110 and upper articulated joint 142.

136 Lower oscillation axle of support 134 (first fulcrum).

138 Reverse of oscillation with regard to first axle 136.

140 Reverse of oscillation with regard to wheel axle 144.

142 Upper oscillating articulated joint, around second centre 144.

144 Second fulcrum. Rear wheel axle 154.

146 Rigid exit sleeve collar on second articulated joint 142.

148 Axial retaining ring for rotation and oscillation of 146.

150 Reverse of oscillation of 146.

152 Tubular stub pipe of 142, leads to the interior of 148 and 146.

154 Wheels, on second articulated joint.

160 Pedal for the control of elastic movement levers of 124 and possibly 126.

162 Shaft for the movement of the bistable mechanism activated by 160.

164 Pair of anti-adhesion sliding block runners of 112, flanked by slot 112 in central position and with maximum suction.

166 Arrows indicating lifting-lowering of 124 and 126.

A brush for vacuum cleaner 100 is shown in the functional views from on high complete as in Diagram 1 or sectioned according to a transversal AA median flat as in Diagram 2 in table 1/4 attached.

These diagrams 1 and 2 show a solution in accordance with the brush mentioned in the present Patent, so that the functionality of the flexible pipe 120, connected on one side to pipe 116 and on the other side to pipe 132 can be understood, and therefore by rotating articulated joint 142 with respect to axle 144, said pipe 120 will adjust to the subsequent positions assumed by brush 100 with regard to the inclinations of 146, maintaining air flow path continuity according to 114 and safely without dispersions or lateral air returning actions on various articulated joint joins as instead happens today in all cases. As already expected, with flexible connection 120 and sleeve collars and adjacent connections, there are no section variations in the sucked air path in the brush crossover, unlike what is the case with brushes currently on the market; the risult is less turbulence, more silence and above all fewer losses.

The axes of two fulcrums of articulated joints 144 and 136, the suction slot in section 112, the front 124 mobile brush and rear gasket 126, movement supports without sliding by means of wheels 118 placed on 128 and to the rear, of second articulated joint, wheel 154 are always shown in these diagrams. Therefore this brush offers all the operative possibilities of the best vacuum cleaner brushes but it also ensures a higher yield of 50% compared with the current models, without there being losses on all joins or articulated joints, both single and double.

Subsequent Diagrams 3 and 4 further clarify the preferred manufacturing method in accordance with this flexible 120 connection solution between the brush and oscillating articulated joint 142, according to 140, the articulated joint 136 first axle position, all in good view in the absence of element 134 of the intermediate articulated joint (Diagram 1). In addition, sleeve collar 146 being able to rotate according to 150, the total freedom of movement of (100) is clearly noticeable with regard to the tube or handle of the vacuum cleaner.

Diagram 5 adds nothing more about flexible sleeve collar 120 but it shows, particularly in section CC, that movement pedal or lever 160 of brush 124 according to 166, in some cases even 126, can follow in vertical movement 124 and these movements produce a better use or in the suction of floors or carpets.

Lastly in Diagram 6 a view from the bottom is shown with slot 112 or slit with a central suction opening which is then connected to the rear with 120, wheels 118 on profile 128 and wheels 154 on articulated joint 142.

To conclude and as has many been times been asserted, this brush 100 offers all characteristics and services of the best brushes for carpet or floor vacuum cleaners but it sets itself apart from these for connection 120, without losses or dispersions, with an increase in yield without sacrificing any of the performances provided by analogous tools.


Next Patent: Upright vacuum cleaner