JP2009297378A - Electric vacuum cleaner and its suction body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric vacuum cleaner excellent in a dust collection property without spoiling operatability provided with the suction body of the electric vacuum cleaner which regulates opening area by perfectly performing opening/closing operation of a supply suction inlet, and the suction body which reduces the restriction of an installation place, is space saving, has a good assembly nature, is simple, suppresses the cost, and is excellent in outward appearance. <P>SOLUTION: The suction body for the electric vacuum cleaner is provided with a suction chamber having an opening facing a surface to be cleaned, has a connection pipe making a dust collection part communicate with the suction chamber of a vacuum cleaner body having an electric blower and the dust collection part, and arranges the supply suction inlet for sucking open air to the suction inlet. An adjusting means is provided for varying the opening area of the supply suction inlet. The adjusting means is formed by a flexible opening/closing plate, and is provided with a linearly folded part at its tip. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention provides a horizontally long suction chamber, a rotary cleaning body rotatably installed in the suction chamber, a dust suction suction opening provided below the suction chamber, and replenishing the suction chamber with outside air. A suction port for a vacuum cleaner having a replenishing intake port for suction, a sheet-like adjusting valve plate having a flexibility for adjusting an opening area of the replenishing intake port, and a vacuum cleaner provided with the suction body for the vacuum cleaner Related to the machine.

  As a suction body of a conventional vacuum cleaner, for example, there is Patent Document 1 (Japanese Patent Laid-Open No. 2001-321304). There has been proposed a system in which an intake port is provided in front of the lower case of the intake body, and a flexible vane is installed in the intake port.

  Further, in Patent Document 2 (Japanese Patent Laid-Open No. 2008-0865549), an air passage that communicates with the outside of the suction tool is provided between the opening front part and the rear part from the center of the suction brush between the suction part upper part and the suction chamber. There has been proposed a valve that is pivotally supported and rotatable so that the opening can be opened and closed. The regulating valve is urged from below by a spring or the like so as to be closed when the pressure in the suction chamber is equal to the atmospheric pressure.

JP 2001-321304 A JP 2008-086549 A

  In Patent Document 1, when the suction force of the vacuum cleaner body is large, the negative pressure in the mouthpiece body increases, so the vane bends and the negative pressure is suppressed by taking in external air to prevent the carpets from sticking. ing. On the other hand, when the suction force of the vacuum cleaner main body is small, the negative pressure in the suction body is small, so that the vane is lowered in the vertical direction, and the negative pressure is maintained to ensure dust collection performance.

  At this time, when the vane is lowered in the vertical direction, a situation occurs in which dust such as rice grains in front of the vane cannot be sucked into the suction port. In addition, when the above configuration is formed in front of the mouthpiece, particularly in front of the lower case, there is a problem that the attachment position of the rotary cleaning body is on the rear side, and there is a large amount of unsucked parts when cleaning near the wall. .

  In Patent Document 2, when the negative pressure in the air passage is increased, such as when the suction body is in contact with the corner, the regulating valve is opened, and the dust in the front corner is conveyed by the outside air introduction wind, and the front corner Ensures dust collection performance. In addition, since the regulating valve operates in a direction to close when it is separated from the corner, the dust collection force is increased by the increased negative pressure.

  However, since the regulating valve is urged by a spring or the like in the closing direction, the number of parts is large, the configuration is complicated, the assemblability is poor, and the cost may be increased. Further, if the biasing force is not provided symmetrically in the direction of the rotation axis of the adjustment valve and in the vicinity of both ends, the adjustment valve may bend in the direction of the rotation axis and the appearance may be deteriorated.

  In addition, when the opening / closing operation is performed only by bending the adjusting valve without providing an urging means such as a spring, the restoring force of the adjusting valve is required, so the thickness needs to be increased. For this reason, in order to bend the thick member, the regulating valve becomes large and the installation space is limited. Furthermore, the negative pressure in the suction body is the largest in the center with respect to the longitudinal direction, and the negative pressure in the suction body becomes smaller as it goes in both end directions. In order to improve the external appearance, there has been a restriction that it must be provided in a symmetrical shape at the center of the mouthpiece.

  The object of the present invention is to cope with the above-mentioned problems, and by automatically adjusting the opening area of the replenishing intake port for replenishing outside air according to the state of the negative pressure in the intake body, a light operation and high dust collection can be achieved. In addition, a vacuum cleaner mouthpiece that is excellent in energy saving is provided with a vacuum cleaner mouthpiece having a structure that is easy to assemble and has a reduced cost, with reduced installation space restrictions. Objective.

  In order to achieve the above object, the present invention is characterized by a horizontally long suction chamber, a dust suction suction opening provided below the suction chamber, and replenishing and sucking outside air into the suction chamber. A suction port for a vacuum cleaner having a replenishment intake port and a sheet-shaped adjustment valve plate having a flexibility for adjusting an opening area of the replenishment intake port, wherein the adjustment valve plate is a fulcrum serving as a pivotal support point. The rigidity rib is provided on the movable end side located on the opposite side of the fixed portion side.

  According to the present invention, by automatically adjusting the opening area of the replenishing intake port that replenishes outside air according to the state of the negative pressure in the intake body, light operation and high dust collection can be achieved, and energy saving is excellent. In addition, the vacuum cleaner mouthpiece can be provided with a simple and easy-to-assemble structure that reduces the restriction on the installation location and is provided in a small space.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings.

  The structure of the mouthpiece according to one embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is an external perspective view of a mouthpiece according to an embodiment of the present invention, FIG. 2 is an exploded perspective view, and FIG. 3 is a plan view with an upper case removed. Reference numeral 100 denotes an upper case, and reference numeral 101 denotes a lower case, which form an inlet body 150. 131 is an inner case.

  The suction port main body 150 has a horizontally long suction chamber, and the suction chamber includes a rotatable cleaning body that is rotatable. The suction port main body 150 has a floor surface opening (suction opening) for sucking dust provided on the lower side of the suction chamber, and a replenishment intake port 132 for replenishing and sucking outside air into the suction chamber.

  The replenishing intake port 132 is provided with adjusting means (a flexible sheet-like adjusting valve plate) for changing the opening area so as to limit the operating range of the adjusting means or to hold the adjusting means. The holding rib 101a is formed. In the present invention, a flexible flap 133 (a flexible sheet-like adjusting valve plate) is attached.

  The holding rib 101a regulates the maximum amount of movement by which the flexible flap 133 is greatly bent toward the inside of the suction chamber so as to increase the opening area.

  118 is a floor surface opening provided in the lower case 101 and faces the surface to be cleaned. 119 is a bumper, 104 is a rotary cleaning body, 105 is an electric motor for driving the rotary cleaning body 104, 107 is a safety switch for automatically stopping rotation when the suction body is lifted, 108 is a pulley on the motor side, 109 Is a large pulley that constitutes a reduction pulley, 110 is a small pulley that constitutes a reduction pulley, and 111 is a shaft that connects the large pulley 109 and the small pulley 110.

  In this embodiment, a transmission mechanism for transmitting to the end of the rotary shaft of the rotary cleaning body 104 is constituted by the large pulley 109 and the small pulley 110 provided on the shaft 111.

  The suction body 206 is provided with a display means 130 which controls the input of the motor 105 of the suction body and the electric blower of the body in conjunction with each other according to the surface to be cleaned, and which is lit in steps. The status is indicated by emitting a color.

  The display unit 130 includes light emitting diodes 124 and 125 and light guide tubes 126 and 127.

  122 is a circuit board for controlling the driving of the electric motor 105, and light emitting diodes 124 and 125 (light emitting elements) for irradiating the operation state of the main body and the suction body in a stepwise manner are provided at a substantially central portion of the upper surface of the lower case 206. The light emitting diodes 124 and 125 are arranged so that the light emitted from the light emitting diodes 124 and 125 is directed outward from the center side, and light guide tubes 126 and 127 are disposed in front of the light emitting diodes 124 and 125. Reference numeral 123 denotes a drive circuit board for irradiating the light emitting diodes 124 and 125. The light emitting diodes 124 and 125 are composed of two diodes having different emission colors. In this embodiment, the light emitting diodes 124 and 125 are a combination of red 124a and 125a and green 124b and 125b. Light guide tubes 126 and 127 are installed on the display means 130 of the upper case 100.

  The external view of the vacuum cleaner which concerns on FIG. 4 at one Example of this invention is shown. 201 has a built-in electric blower (not shown) for generating intake air necessary for collecting the suction body 206 at the rear, and a dust collection chamber (not shown) for collecting dust at the front. Built-in vacuum cleaner main body, 202 is connected to the vacuum cleaner main body 201 and hose formed so as to move flexibly, 203 is connected to the hose 202 and controls the vacuum cleaner main body 201 and the suction body 206 This is a hand operation unit that has a built-in switch operation unit 204 and has a flow path (not shown) communicating with the hose 202 and the extension pipe 205. The hose 202, the hand operation unit 203, and the extension pipe 205 have a built-in power supply line (not shown) for supplying electricity to the suction body 206.

  A control board 250 (FIG. 5) for controlling the input of the electric blower and the input of the suction motor driving motor 105 is housed inside the electric vacuum cleaner main body 201.

  A universal joint 160 is provided behind the mouthpiece main body 150 at the center in the left-right (width) direction. One end of the universal joint portion 160 is rotatably connected to the suction mouth main body 150, and the first connection tube 102 that can rotate from a substantially horizontal state to a substantially vertical state with respect to the surface to be cleaned, and one end thereof. A second connection pipe 103 is rotatably connected to the other end of the first connection pipe 102 and is rotatable in the left-right direction with respect to the mouthpiece main body 150. An extension pipe 205 is connected to the other end of the second connection pipe 103. The universal joint 160 has a function of allowing the extension pipe 205 to be tilted in the left-right direction of the mouthpiece body 150 in a state where the extension pipe 205 is substantially perpendicular to the surface to be cleaned. For this reason, by twisting in the left-right direction of the hand operation unit 203, the suction body 150 can be rotated approximately 90 degrees in the left-right direction, and the left-right direction of the suction body 150 can be cleaned in the moving direction. The suction body 206 can be moved along the wall, or the suction body 206 can be inserted into a narrow gap for cleaning.

  In FIG. 1, the direction along the rotation axis of the rotary cleaning body 104 is called the left-right direction of the mouthpiece body, and this left-right direction coincides with the longitudinal direction of the normal mouthpiece body. Regarding the vertical direction of the mouthpiece body, the side where the opening 118 is formed is called the lower surface side and the opposite side is called the upper surface side in a state where the mouthpiece body 150 is placed on a horizontal floor surface.

  Further, as viewed from the user, the direction in which the user grasps the hand operation unit 203 and pushes the mouthpiece 206 is defined as the front side (front), and the direction in which the user draws the mouthpiece 206 toward the user is defined as the rear side (rear).

  FIG. 5 shows an AA cross-sectional view of the mouthpiece according to this embodiment, and FIG. 6 shows an enlarged view thereof. Reference numeral 100 denotes an upper case, and an inner case 131 is attached to the upper case. Reference numerals 302 to 305 denote cleaning members of the rotary cleaning body, reference numeral 306 denotes a cylindrical base for fixing the cleaning members 302 to 305, and reference numeral 307 denotes a suction chamber.

  A suction body upper case 100 is provided on the upper side of the suction body lower case 101 so as to be detachable from the suction body lower case 101 so as to cover the rotary cleaning body 104. The suction body lower case 101 constitutes a suction chamber 307 in which the rotary cleaning body 104 is accommodated. In addition, an opening 118 for sucking dust on the surface to be cleaned is formed on a surface of the lower suction body 101 facing the surface to be cleaned, which enables the rotary cleaning body 104 and the surface to be cleaned to come into contact. ing.

  The cleaning members 302 to 305 of the rotary cleaning body 104 can be configured using soft blades in addition to brushes made of fibers or the like. The brushes and blades can be used alone or in combination with brushes and blades. Can be configured. Further, the cleaning member may be constituted by a protrusion formed integrally with the member forming the cylindrical base 306. In any case, the cleaning member is configured to protrude outward from the outer peripheral surface of the cylindrical base body 306.

  The supply air inlet 132 is formed in the inner case 131 provided on the upper side of the rotary cleaning body 104, and adjustment means for changing the opening area of the supply air intake 132 is provided. In the present invention, the adjusting means has a flexible flap 133 attached to the inner case 131. At this time, the flap 133 is sufficiently stretched and fixed in a bent state by the fulcrum fixing portion 131a and the convex portion 131b of the inner case 131.

  Therefore, the flap 133 is pressed against the inner case 131 by a restoring force, and the supply air inlet 132 is completely closed. The flap 133 is bent according to the magnitude of the negative pressure in the suction chamber 307, and the front end portion of the flap 133 is bent in the rotation direction around the fulcrum fixing portion 131a of the inner case 131.

  In the present embodiment, the attachment direction of the flap 133 is configured to open toward the front of the mouthpiece, but the attachment direction of the flap is not limited. For example, when the opening direction of the flap 133 is rearward, it is easy for the user to visually recognize the operation of the flap 133, the effect of the flap can be realized, and it can be visually confirmed that the flap 133 is operating normally.

  Further, the front end portion of the flap 133 is bent by a bent portion 133a so as to have rigidity in the rotation axis direction. Here, the bending angle 133b is desirably 60 ° to 90 °. Here, the flap 133 uses a sheet made of polyethylene terephthalate, but the material is not limited.

  That is, the flap 133 which is an adjustment valve plate is bent in a bowl shape on the movable end side which is the opposite side of the support fixing portion 131a. The bent part 133a is formed so as to extend along the movable end side. The bent portion 133a that bends in a bowl shape has the function of a rigid rib, and the rigidity acts in the extending direction of the rigid rib. Therefore, the flap 133 that is the adjustment valve plate does not bend in the extending direction. It is convenient for increasing the rigidity of the horizontally elongated adjusting valve plate extending along the longitudinal direction of the suction chamber.

  Therefore, the flap 133 that is the adjustment valve plate is movably changed in the same manner over the direction of the rotation shaft that is the support fixing portion 131a (the extending direction of the rigid rib) in accordance with the negative pressure change in the suction chamber 307. .

  The rigid rib can also be formed upward. When it is formed together in the upward / downward direction, the rigidity is further improved.

  In the above embodiment, the rigid rib extends linearly along the movable end side. However, the rigid rib extends in two hands at the middle of the longitudinal direction of the movable end side. Is also possible. In this case, different directions can be selected as appropriate for the extending directions of the two rigid ribs.

  Next, the operation of this embodiment will be described.

  When the vacuum cleaner user operates the switch operation unit 204 installed in the hand operation unit 203, the electric blower in the vacuum cleaner main body 201 operates in an operation mode according to the operated switch. The suction force generated by the electric blower reaches the suction body 206 through the hose 202 and the extension pipe 205. At the same time, the power supplied from the power lines provided on the hose 202 and the extension pipe 205 drives the electric motor 105 via the circuit board 122.

  By rotating the rotary cleaning body 104 connected to the electric motor 105 with a pulley and a belt, dust and dust are scraped and sucked from the surface to be cleaned by brushes and blades which are cleaning members of the rotary cleaning body 104.

  Dust is a gap formed between the lower surface of the mouthpiece body 206 and the surface to be cleaned, a suction portion formed between the so-called front bumper 119, an opening portion formed between the side surfaces of the mouthpiece body 206, and a fixed brush portion on the rear side. Inhaling from between. On the floor or flooring, the gap is kept almost constant, but the gap state changes when the length of the hair is different, such as a carpet. Therefore, the negative pressure in the suction chamber 307 increases as the gap between the surface to be cleaned is smaller.

  When the vacuum cleaner user cleans the carpet, the suction body 206 sinks into the carpet due to the suction force of the main body, and the gap formed between the suction surface and the surface to be cleaned is reduced, and the negative pressure in the suction chamber 307 is increased. Therefore, the carpet and the mouthpiece 206 may be adsorbed and the operability of moving back and forth may be deteriorated.

  According to the present embodiment, as shown in FIG. 5A, when the negative pressure in the suction chamber 307 increases, the flap 133 installed on the inner case 131 is sucked and rotated around the fulcrum fixing portion 131a. The supply air inlet 132 that has been bent and closed is opened, air from the outside flows in, and the negative pressure in the suction chamber 307 decreases.

  At this time, since the holding rib 101a (deflection amount limiting means) for limiting the operating range of the flap 133 is installed, even if the negative pressure in the mouthpiece body becomes unexpectedly large due to abnormal use, Since the operating range is limited, the flap 133 is not detached from the suction body, and the flap 133 does not come into contact with the rotary cleaning body 104 provided inside the suction chamber and is not damaged. Moreover, since the upper limit of the bending of the flap 133 is limited, it is possible to prevent the flap 133 from being permanently deformed by the bending.

  Thereby, adsorption | suction with a carpet and the suction body 206 is relieve | moderated, and a light operation can be performed.

  Further, since air flows from the outside through the replenishing intake port 132, the air is blown onto the cleaning members 302 to 305 of the rotary cleaning body 104, and the effect of removing dust adhering to the cleaning member and lint, hair, etc. There is an effect of suppressing entanglement. Furthermore, there is an effect that dust that has entered between the cleaning members can also be removed.

  At this time, since the flap 133 has rigidity in the direction of the rotation axis by the bent portion 133a, it does not bend in the direction of the rotation axis. Accordingly, since the flap 133 is uniformly rotated with respect to the rotation axis direction according to the magnitude of the negative pressure of the suction chamber 307, the adjustment of the internal pressure of the suction chamber 307 is easily set by the size of the flap 133. it can.

  Moreover, since it has rigidity by bending, it has a small number of parts and a good assembling structure, and further, it can improve the appearance because it can suppress the bending in the direction of the rotation axis. Furthermore, since rigidity can be obtained by the bent portion 133a, the thickness of the flap 133 can be reduced, and it can be installed even in a space-saving manner.

  Next, when the vacuum cleaner user cleans the floor and flooring, the gap formed between the surface and the surface to be cleaned is kept substantially constant, so the negative pressure in the suction chamber 307 is lower than that in the carpet. Therefore, as shown in FIG. 5B, the flap 133 that has been sucked and bent closes the replenishment intake port by the restoring force of its own beam.

  As a result, the negative pressure in the suction chamber 307 increases, so that the dust collection rate is improved. Since a gap between the front bumper 119 and the surface to be cleaned is secured, relatively large dust such as rice grains can be sucked.

  At this time, since the flap 133 is fixed in a sufficiently stretched state by the fulcrum fixing portion 131a and the convex portion 131b, the restoring force of the beam is strong, suppressing variation due to individual differences of products, and reducing the negative pressure of the suction chamber When the pressure is low, the supply air inlet can be completely closed. In addition, the fulcrum fixing part 131a is provided in a piecewise manner with respect to the rotation axis, and even if the restoring force of the beam is symmetrical with respect to the flap 133 in the direction of the rotation axis and does not act in the vicinity of both ends. Due to the rigidity of 133a, the supply air inlet can be completely closed without the flap 133 being bent in the direction of the rotation axis. Therefore, even when the replenishment intake port is provided at a location other than the center with respect to the longitudinal direction of the suction body, the replenishment intake port can be completely closed due to the rigidity of the bent portion 133a. Even when the flap 133 is made of a thin material, rigidity can be obtained by the bent portion 133a, so that the supply air inlet can be completely closed.

  From the above, it is possible to provide a light operation and high dust collection performance without switching operation according to the state of negative pressure in the mouthpiece.

  Further, since the flap 133 bends according to the negative pressure in the suction chamber 307, the replenishment inlet 132 is automatically opened and closed. For example, when dust accumulates and the suction force of the main body decreases, the negative pressure in the suction chamber 307 of the suction body 206 decreases accordingly. However, if the negative pressure is low, the flap 133 closes the replenishment inlet 132 on the carpet. As a result, there is little decrease in dust collection performance.

  In general, the pressure in the suction chamber 307 of the suction body 206 decreases from the center toward the end in the longitudinal direction. In this embodiment, since the replenishing intake ports 132 are arranged at two places on the left and right in the longitudinal direction of the intake body 206, the external air is directed from the end side of the rotary cleaning body 104 to the central portion, so that only the pressure is used. In addition, the dust can be sucked while being transported together with the force of air.

  Here, the replenishment intake ports 132 on the upper side of the rotary cleaning body 104 are arranged at two places on the left and right in the longitudinal direction, but the arrangement position and number can be adjusted as appropriate. Alternatively, by adjusting the opening area of the replenishing intake port, the internal pressure of the suction chamber can be kept substantially constant, and dust collection performance can be maintained regardless of the target of the surface to be cleaned.

  In this embodiment, the floor moving type vacuum cleaner has been described. However, the present invention is not limited to this and can be applied to an upright type or stick type vacuum cleaner.

  As described above, according to the present embodiment, the front end of the flap that automatically moves according to the magnitude of the negative pressure in the suction chamber is bent, so that it can be opened and closed with a simple structure, good assembly, and a structure with reduced cost. By performing the operation completely, the opening area of the replenishing inlet can be adjusted, and excellent dust collection performance can be provided without impairing operability.

  In addition, according to the present embodiment, a simple structure in which a replenishing intake port is formed in the inner case and a flexible flap with a bent end is attached to the replenishing intake port, and the opening / closing operation is completely completed at a low cost. Can be done.

It is a perspective view of a mouthpiece concerning one example of the present invention. It is a disassembled perspective view of the suction mouth which concerns on one Example of this invention. It is a top view of a mouthpiece concerning one example of the present invention. It is an external view of the vacuum cleaner which concerns on one Example of this invention. FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 according to an embodiment of the present invention, showing a state in which a flap is opened. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 according to an embodiment of the present invention, showing a state in which the flap is closed. FIG. 6 is an enlarged view of the flap of FIG. 5 according to an embodiment of the present invention, showing a state in which the flap is opened. FIG. 6 is an enlarged view of the flap of FIG. 5 according to an embodiment of the present invention, showing a state in which the flap is closed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Upper case 101 ... Lower case 101a ... Holding rib 104 ... Rotary cleaning body 105 ... Electric motor 131 ... Inner case 131a ... Supporting point fixing | fixed part 131b ... Convex part 132 ... Supply inlet 133 ... Flap 133a ... Bending part 133b ... Bending angle 201 ... Vacuum cleaner main body 203 ... Hand operating part 206 ... Suction body 302 to 306 ... Cleaning member 307 ... Suction chamber

Claims (8)

A horizontally long suction chamber, a dust suction inlet provided below the suction chamber, a replenishment intake port for replenishing and sucking outside air into the suction chamber, and an adjustment area for adjusting the opening area of the replenishment intake port In the suction body for a vacuum cleaner having a sheet-like adjusting valve plate having flexibility,
The suction valve body for a vacuum cleaner, wherein the adjustment valve plate is provided with a rigidity rib on the movable end side opposite to the fulcrum fixing portion side serving as a rotation fulcrum. The mouthpiece for a vacuum cleaner according to claim 1,
The mouthpiece for a vacuum cleaner, wherein the rib for rigidity of the regulating valve plate is formed by bending the movable end side into a bowl shape. The mouthpiece for a vacuum cleaner according to claim 1,
The suction mouthpiece for a vacuum cleaner, wherein the rib for rigidity of the adjustment valve plate extends along the movable end side. The mouthpiece for a vacuum cleaner according to claim 1,
The suction rib for a vacuum cleaner, wherein the rib for rigidity of the adjustment valve plate is formed so as to face the inside of the suction chamber. The mouthpiece for a vacuum cleaner according to claim 1,
The suction mouthpiece for a vacuum cleaner, wherein the rigid rib extends in two hands at the middle in the longitudinal direction on the movable end side. The mouthpiece for a vacuum cleaner according to claim 1,
The suction mouthpiece for a vacuum cleaner, wherein the replenishing inlet port and the adjusting valve plate have a horizontally long shape extending along a longitudinal direction of the suction chamber. A suction chamber in a horizontally long space, a rotary cleaning body rotatably installed in the suction chamber, a suction opening for sucking dust provided below the suction chamber, and a replenishment for replenishing and sucking outside air into the suction chamber In the suction body for a vacuum cleaner, which has a suction valve and a sheet-like adjustment valve plate having a flexibility for adjusting the opening area of the replenishment suction port,
A suction mouthpiece for a vacuum cleaner, comprising a deflection amount limiting means for limiting the maximum deflection amount of the adjustment valve plate toward the inside of the suction chamber.   The vacuum cleaner provided with the suction body for vacuum cleaners described in any one of Claims 1-7.

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