ITPD20020020U1 - MACHINE PERFECTLY PARTICULARLY FOR DOMESTIC AND / OR INDUSTRIAL CLEANING. - Google Patents

Description

P 21785

"PERFECTED MACHINE PARTICULARLY FOR DOMESTIC AND / OR INDUSTRIAL CLEANING"

On behalf: TP A. IMPEX S.p A.

Based in ROMANO D EZZELINO (Vicenza)

DESCRIPTION

The present invention relates to an improved machine particularly for domestic and / or industrial cleaning.

Domestic and / or industrial cleaning machines, such as vacuum cleaners, electric brooms, and which can also have the function of air purification machines, are known in the state of the art.

These machines usually comprise a filter or filtering group, arranged in a corresponding seat on a support frame, through which the sucked air is passed, retaining suspended dust and dirt, and then expelled to the outside, cleaned. .

In the Italian patent application n. PD2001A29 filed on 07/02/2001 in the name of the same owner, a filtering unit applied to a vacuum cleaner comprising a wheeled frame in which a housing seat is obtained for the filtering group itself, substantially counter-shaped to

the latter.

The housing seat is isolated from the outside and in communication with a suction motor arranged in a portion of the vacuum cleaner.

The filter group includes a box-like body equipped with an air intake connected to the air intake of the vacuum cleaner and a perimeter wall consisting of a filtering band.

Dn. Ino. ALBERTO BACCHIN 2 OnftofNazimute of Contdmti in IndtatrtàU Property »No ·. 4 * -

The sucked air is conveyed inside the filtering group, escaping from this through the filtering band.

The filtering group must therefore be cyclically cleaned or replaced, as dust and dirt accumulate inside it, obstructing the filtering band and decreasing the filtering capacity itself.

The main aim of the present invention is to provide an improved machine for domestic and / or industrial cleaning whose structure entails an increase in terms of duration of the capacity and effectiveness of the filtering unit, without the need to intervene directly with regard to its cleaning and / or replacement.

Another object of the present invention is to provide a machine that can be easily used even by users without particular technical knowledge.

Another object of the present invention is to provide a machine with a simple structure.

Not least object of the present invention is to provide a machine which can be manufactured with known technologies and systems.

The main aim, the intended aims and other objects which will appear more clearly hereinafter are achieved by an improved machine for domestic and / or industrial cleaning, of the type comprising a frame in which a housing seat is obtained, insulated from the outside. and in communication with a suction motor supported by the frame itself, for a filtering unit connected to the means for connecting to the equipment for the air intake, characterized in that said filtering unit is arranged with a predetermined clearance within said housing seat and comprises a box-like body,

Dn lng. ALBERTO BACCHIN 3 Naàonaie Order of Industrial Property Consultants - No. «

with at least one portion of the wall consisting of a filtering band, from which at least a first duct develops, connected to a corresponding second duct for aspirating air from the outside, said first and second ducts forming an elastic joint seal connection adapted to allowing the movement of said filtering group inside said housing seat following the variation of the pressure conditions inside the housing seat itself.

Further characteristics and advantages of the present invention will become clearer from the description of a preferred but not exclusive embodiment thereof, illustrated by way of non-limiting example in the attached tables of drawings and figures, in which:

- fig. 1 is a perspective view of an improved machine for domestic and / or industrial cleaning, according to the invention;

- fig. 2 shows, in cross section, the machine of Figure 1.

With particular reference to the figures described above, an improved machine for domestic and / or industrial cleaning, according to the invention, is generally indicated with the number 10.

The machine 10, which in the case shown in the figures is a vacuum cleaner, comprises a wheeled frame 11 in which a housing seat 12 isolated from the outside and in communication with a suction motor, not shown in the figures but in any case of the type in itself known, arranged in a portion 31 of the frame 11 itself.

The filtering group 13 is arranged with clearance within the housing seat 12 and is connected to the means of connection 14 to the equipment for the air intake.

f The filtering group 13 comprises a box-shaped body, better later on

described, with at least a portion of the wall consisting of a filter band, from

which develops a first duct 15 connected to a corresponding second

duct 16 for air intake from the outside.

In practice, the first and second ducts, 15 and 16, make a

elastic joint seal connection designed to allow movement of the unit

filter 13 inside the housing 12 following the changes

the pressure conditions inside the housing 12 itself,

as will be clarified later.

The sealing connection to the elastic joint is made by the portions of

ends 15a and 16a of first and second ducts 15 and 16, respectively, which

they are arranged, on site, substantially coaxial, inserted with play each

in the other, with the interposition of a seal 17, with a surface of

toroidal seal, which allows the joint.

In practice, the connection substantially provides a cantilevered support

for the filter group 13.

The second conduit 16 rises substantially in a vertical direction

from top to bottom, from the bottom 22 of the housing seat 12, with portion

of the upper end 16a in correspondence with which the

end portion 15a of the first duct 15.

The first duct 15 extends laterally from the filtering unit 13, with

substantially "L" shape and end portion 15a to be arranged, in

work, with a substantially vertical axis.

The filtering group 13 comprises two side covers 18a and 18b, from

the first of which develops the first duct 15, and a perimeter wall 19, a

substantially perpendicular to the lids 18a and 18b, consisting of a filtering band.

The first conduit 15 carries, in correspondence with its free end portion 15a, the sealing gasket 17 which engages, in operation with its toroidal sealing surface, on the outer perimeter surface of the end portion 16a of said second conduit 16.

As can be seen in Figure 2, the filtering assembly 13, when in operation, rests with its lower portion 20, on the side of the first duct 15, on a raised portion 21 of the bottom 22 of the housing seat 12.

The housing seat 12 is defined by a tank 23, from the bottom 22 of which the second conduit 16 rises, to be arranged within a counter-shaped compartment 24 of the frame 11, and by a cover 25 with a side portion 26 able to put the motor in communication suction with the housing seat 12 itself.

The machine 10 also comprises a pressure sensor 27 suitable for detecting an increase in the pressure conditions inside the housing seat 12, with respect to normal conditions of use.

The pressure sensor 27 includes a preloaded spring 28, acting in contrast to the action of the pressure inside the housing seat 12 on a drawer 29, visible to the user, translating within a corresponding tubular guide 30.

In this embodiment, the perimeter wall 19 consists of a washable polyester filter, however in other embodiments, micro-perforated filters, for example with activated carbon for antiallergenic actions, or HEPA filters, can be usefully used.

As far as the operation is concerned, the filter group 13 being

FROM. Ing. ALBERTO BACOHIN Order Ntdaule dei Caualmti te Aef ria "I utetete practically cantilevered inside the housing seat 12, due to its weight and the elastic joint coupling, tends to be inclined downwards.

When the machine 10 is put into operation, the pressure conditions inside the housing 12 generate a resultant which acts on the filtering group 13 in contrast to its weight, without being able to overcome it.

On the other hand, when the connecting means 14 to the equipment for the air intake are partially obstructed, accidentally or voluntarily, the pressure conditions inside the housing seat 12 increase in intensity and generate a resultant which acts on the filtering unit 13 overcoming its weight and turning it upwards, with respect to the articulation point.

In this way, by obstructing and freeing the connecting means 14 or the equipment for the air intake at high frequency, for example with a hand on the outlet, the filtering unit 13 is shaken by making it oscillate with respect to the articulation point, and causing it to fall the dirt accumulated on the filtering wall, increasing the capacity, the effectiveness over time of the filtering group 10 itself.

Of course, the shaking effect of the filtering group can also be generated unintentionally, during normal use of the machine.

A domestic and / or industrial cleaning machine, according to the invention, can take the form of a vacuum cleaner but also an electric broom.

In practice it has been found that the present invention has solved the intended aim and objects.

In fact, a machine with a simple structure has been created, which involves an increase in terms of duration of the capacity and effectiveness of the filtering group, without the need to intervene directly on its cleaning and / or

Βλ Ing. ALBERTO BACCHIN 7 National Order of Industrial Property Consultants for replacement.

The machine can be easily used even by users without special technical knowledge.

The technical details can be replaced by other technically equivalent elements.

The materials as well as the dimensions can be any according to requirements.

P ^ tog./lMnTO BACCHHn Oriku Ntaomde dtio »~ i_ ^ 8 Λι Pnprici 4 XHÀMVUA- No. 48 -T ^

Claims (11)

CLAIMS 1) Improved machine for domestic and / or industrial cleaning, of the type comprising a frame (11) in which a housing seat (12) is obtained, isolated from the outside and in communication with a suction motor supported by the frame (11) ) itself, for a filtering group (13) connected to the means (14) for connection to the equipment for the air intake, characterized by the fact that said filtering group (13) is arranged with a predetermined clearance within said housing seat (12) and comprises a box-like body, with at least one wall portion consisting of a filtering band, from which at least one first duct (15) develops, connected to a corresponding second duct (16) for aspirating air from the outside, called first and second duct (15, 16) realizing a sealing connection with an elastic joint able to allow the movement of said filtering group (13) inside said housing seat (12) following the variation of the pressure conditions inside the housing seat (12) itself. 2) Machine, as in the previous claim, characterized by the fact that said connection with elastic joint seal is made by the end portions (15a, 16a) of said first and second ducts (15, 16), which are arranged, on site , substantially coaxial, inserted with play in each other, with the interposition of a sealing gasket (17), said connection substantially realizing a cantilevered support for said filtering group (13). 3) Machine, as in the previous claims, characterized in that said second duct (16) substantially rises vertically from top to bottom, from the bottom (22) of said housing seat (12), with an end portion upper portion (16a) in correspondence with which the end portion (15a) of said first duct (15) engages in operation. 4) Machine, as per one or more of the preceding claims, characterized in that said first duct (15) develops laterally from said filtering group (13), with a substantially "L" shape and an end portion (15a) to be disposed , on site, with a substantially vertical axis. 5) Machine, as in the previous claim, characterized by the fact that said filtering group (13) comprises two side covers (18a, 18b), from one of which the first duct (15) develops, and a perimeter wall (19), substantially perpendicular to said covers (18a, 18b), consisting of a filtering band. 6) Machine, as in one or more of the preceding claims, characterized in that said first duct (15) carries, in correspondence with its free end portion (15a), said sealing gasket (17) which engages, in operation, with its toroidal sealing surface, on the outer perimeter surface of the end portion (16a) of said second duct (16). 7) Machine, as per one or more of the preceding claims, characterized in that, in operation, said filtering unit (13) rests with its lower portion (20), on the side of said first duct (15), on a portion raised (21) of the bottom (22) of said housing seat (12). 8) Machine, as per one or more of the preceding claims, characterized in that said housing seat (12) is defined by a tank (23), from the bottom (22) of which the second duct (16) rises, to be arranged within a counter-shaped compartment (24) of said frame (11 ), and by a cover (25) with lateral portion (26) suitable for putting said motor in communication suction with the housing seat (12) itself. 9) Machine, as per one or more of the preceding claims, characterized in that it comprises a pressure sensor (27) able to detect at least an increase in the pressure conditions inside said housing seat (12), with respect to the normal conditions of use. 10) Machine, as in the previous claim, characterized in that said pressure sensor (27) comprises a preloaded spring (28), acting in contrast to the action of the pressure inside said housing seat (12) on a drawer (29) ), visible to the user, translating within a corresponding tubular guide (30). 11) Improved machine for domestic and / or industrial cleaning, as per one or more of the preceding claims, which is characterized by what is illustrated in the attached tables of figures and drawings. By assignment Τ.ΡΛ. IMPEX S.p A. The Agent