Cleaning device

In a cleaning device, the scraping up body and the rotating body rolling the adhesive roll are rotatably supported to the frame, and the adhesive roll is rotatably arranged on the scraping up body and the rotating body in parallel.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a cleaning device.

2. Description of the Related Art

As a cleaning device, there is known a structure in which a brush body and an adhesive roll are independently provided and which independently collect dust (Japanese Utility Model Application Laid-open No. 59-139261), and a structure in which an adsorption surface of a primary adsorbing roller and an adhesive sheet of a secondary adsorbing roller are rotated in contact so as to transfer dust attached to the primary adsorbing roller to a side of the adhesive sheet (Japanese Utility Model Application Laid-open No. 2-12363).

The prior arts mentioned above have the following problems.

(1) When cleaning a carpet using the adhesive roll, the adhesive roll adheres fibers constituting the carpet, thereby damaging the carpet.

(2) When cleaning a flooring using the adhesive roll, the adhesive roll strongly adheres the flooring so as to be immobilized, thereby making it impossible to roll the adhesive roll.

(3) Since hairs or the like become wound around the brush body, it is hard to maintain a stable cleaning performance.

Further, as a cleaning device, there is known a structure in which an electrostatic generating roller and an adhesive roll are rotated in contact, and both the electrostatic generating roller and the adhesive roll are elastically held in contact with each other by a spring pulling the adhesive roll to a side of the electrostatic roller, whereby dust adhering to the electrostatic generating roller becomes attached to the adhesive roll so as to collect the dust (Japanese Utility Model Application Laid-open No. 63-163767).

In this prior art, the following problems exist.

(1) Since the electrostatic generating roller rolls while pressing the carpet from a surface thereof, it is impossible to pick up dust in a deep portion of the fiber of the carpet, so that it is hard to improve a cleaning performance.

(2) When making an adhesive force of the adhesive roll strong in order to securely adhere the dusts attached to the electrostatic generating roller to the adhesive roll, the electrostatic generating roller adheres to the adhesive roll, whereby a rotation operating force applied to the electrostatic generating roller by a user becomes heavy.

SUMMARY OF THE INVENTION

An object of the present invention is to make it possible to stably clean the carpet and the flooring for a long time.

Another object of the present invention is to improve an operability of a cleaning device by a user, and improve a performance of picking up dust.

In accordance with the present invention, the above and other objects are achieved by a cleaning device comprising a frame; a scraping up body; an adhesive roll; and a rotating body rolling with the adhesive roll, wherein the scraping up body and the rotating body are rotatably supported to the frame, and the adhesive roll is rotatably arranged on the scraping up body and the rotating body in parallel.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

A cleaning device10is structured, as shown inFIGS. 1 and 2, such that a supporting arm13is connected to a front end portion of a handle11via a joint portion12in such a manner as to freely swing in a lateral direction, and a frame15is supported to both side arm portions13A of the supporting arm13via a supporting shaft portion14in such a manner as to freely swing in a longitudinal direction.

A scraping up body16constituted by a brush is rotatably supported at a front portion of the frame15via a rotational shaft17, a contact rotating body18constituted by a roll body is in contact with an adhesive roll21and capable of rotating with the adhesive roll21is rotatably supported at a rear portion of the frame15via a rotational shaft19. The scraping up body16and the contact rotating body18are arranged in parallel. The scraping up body16is constituted by a scraping up portion16A (a brush portion) and a tire portion16B. The scraping up diameter (brush diameter) of the scraping up portion16A is made larger than a tire diameter of the tire portion16B. The contact rotating body18is structured such that a surface thereof is formed by an elastic body, and constituted, for example, by a siliconerubber. In this case, the contact rotating body18may be formed by an inelastic body, and further, a concavo-convex portion may be provided on a surface of the contact rotating body18. The concavo-convex portion can form a rib, a convex portion, a recess portion, a crimping surface or the like on a roll surface of the contact rotating body18. Further, the concavo-convex portion can roll on the adhesive roll21. Or the concavo-convex portion can reduce the rotational coupling force between the adhesive roll21and the contact rotating body18by decreasing contact area between the adhesive roll21and the contact rotating body18. For example,FIG. 7shows an exemplary rotating body18with two concavo-convex portions, namely ribs20.

The adhesive roll21has no rotational shaft and rides on the scraping up body16and the contact rotating body18. The adhesive roll21rotates so as to interlock with the rotation of the scraping up body16and the contact rotating body18. Especially, due to the adhesive forth working between the adhesive roll21and the contact rotating body18, the adhesive roll21rotates so as to interlock with the rotation of the contact rotating body. A take in and out port for the adhesive roll21is provided in an upper portion of the frame15and is covered by a detachable transparent cover15A. The adhesive roll21can be either a take-up roll of an adhesive sheet or an adhesive elastomer surface which is reusable by being cleaned, or the like. The adhesive roll21in accordance with the present embodiment is constituted by a take-up roll of an adhesive sheet in which an adhesive surface facing outside can be wound off and cut. As adhesive agent applied on a base material in the adhesive sheet, a hot melt type, a solvent type, and a water type adhesive agents can be mentioned. As a hot-melt type adhesive agent, a styrene type, and an olefin type can be mentioned. As a solvent type adhesive agent, a styrene type, and an olefin type, and an acrylic type can be mentioned. As a water type adhesive agent, an acrylic type can be mentioned. These adhesive agents are preferable in view of sure-adhering and holding dust such as hairs or breadcrumbs. Further, an amount of application of an adhesive agent on a base material in the adhesive sheet is preferably set to be between 25 and 50 g/m2and more preferably between 25 and 35 g/m2. In this case, as a method of rolling the adhesive roll21, in addition to the method of rotating together with the contact rotating body18, it is possible to employ a method of rotating in an interlocking manner by connecting the adhesive roll21and the rotating body18by a belt, or a method of rotating in an interlocking manner by connecting the adhesive roll21and the scraping up body16by a belt, or the like.

A dustpan body23is supported at a rear portion of the scraping up body16in the frame15. The dustpan body23has a bottom surface portion23A in contact with a floor surface, and a scooping surface portion23B facing the scraping up body16with no gap (or via a gap) and formed in a curved surface shape (or a flat surface shape). Flat supporting shaft portions23C in both sides of the dustpan body23are supported by rectangular holes24in both sides of the frame15so as to freely move in a vertical direction. The dustpan body23moves in a vertical direction due to the rectangular holes24, because the rectangular holes24are bigger than the supporting shaft portions23C in the vertical direction. The dustpan body23guides all the dust scraped up by the scraping up portion16A of the scraping up body16to the adhesive roll21by the scooping surface portion23B without permitting the dust to move rearward along the floor surface, by vertically moving the supporting shaft portions23C with respect to the rectangular holes24and bringing the bottom surface portion23A and the lowermost end portion of the scooping surface portion23B into contact with the floor surface with no gap, due to their own weights.

In this case, the cleaning device10is structured such that when a horizontal distance between the rotational shaft17of the scraping up body16and the rotational shaft19of the contact rotating body18is set to L, and a horizontal distance between the rotational shaft17of the scraping up body16and the supporting shaft portion14of the supporting arm13is set to K, a relation K<L/2 is established, and an operating force applied by the user in an axial direction of the handle11increases a moment pressing the scraping up body16to the floor surface, thereby placing the tire portion16B on the floor surface on the basis of a light operating force so as to make it possible to smoothly start a cleaning operation.

The cleaning operation by the cleaning device10is performed in the following manner.

(1) The operating force applied to the handle11in the axial direction moves the cleaning device10forward, rotates the tire portion16B of the scraping up body16and the contact rotating body18, and simultaneously rotates the adhesive roll21in an interlocking manner.

(2) When the scraping up portion16A of the scraping up body16scrapes up the dust on the floor surface, the dust is guided by the dustpan body23so as to be fed to the adhesive roll21, and is adhered onto the adhesive surface of the adhesive roll21.

(3) The dust picked up on the adhered surface of the adhesive roll21moves to the contact rotating body18due to the rotation of the adhesive roll21, and is pressed onto the adhesive surface of the adhesive roll21by the contact rotating body18so as to be fixed thereto.

(4) When it can be seen via a transparent cover15A that the adhesive surface of the adhesive roll21is completely covered with dust, the cover15A is opened and the adhesive roll21is take out to be cut to remove the outermost adhesive sheet so as to expose a new adhesive surface, and then the adhesive roll21is again placed on the scraping up body16and the contact rotating body18, and the cover15A is closed.

In this case, the cleaning device10can not only move forward but also backward, and at a time of moving backward, the dust on the floor surface attached to the contact rotating body18can be adhered by the adhesive roll21. The dustpan body23is formed in an upward curved shape at a tail end portion23D of the bottom surface portion23A, thereby preventing the tail end portion23D from being caught on the floor surface at a time of backward moving. Further, because the tail end portion23D is formed in an upward curved shape, the bottom surface portion23A, the scooping surface portion23B and the tail end portion23D form a dustpan concave portion23E, and the dust fallen into the dustpan concave portion23E can be held.

Further, in the cleaning device10, as shown inFIG. 3, the scraping up body16is positioned forward and upward in comparison with the contact rotating body18in a state of lifting up the frame15by the handle11and the supporting arm13, and so the frame15pivots around the supporting shaft portion14of the supporting arm13due to its weight.

Further, in the cleaning device10, as shown inFIG. 4, a leg portion25for permitting the frame15sit on the floor surface in a stand-up state is provided in the frame15. Further, as an arm holding means for holding the supporting arm13in a vertically upward direction with respect to the frame15in the stand-up state, there are provided with a rib26formed on an inner side surface of the supporting arm13, and a stopper27and a climb-over pawl28formed in a side portion of the frame15, so that when moving the supporting arm13from a normal use state shown inFIGS. 1 and 2to the stand-up state, the rib26climbs over the climb-over pawl28and is held between the climb-over pawl28and the stopper27.

In accordance with the present embodiment, the following effects can be obtained.

(1) In the carpet, the dust is scraped up by the scraping up body16and thereafter the dust is adhered and picked up onto the adhesive roll21. Since the adhesive roll21is not directly in contact with the carpet, the carpet is not damaged and a persistence of the adhesion performance of the adhesive roll21is improved. Since the carpet fibers need not to be adhered, a lot of dust that should be adhered can be adhered instead of them.

In this case, the adhesive roll21may instead be structured such that the rotational shaft thereof is supported to the frame15and the adhesive roll21is not in contact with the scraping up body16. That is, there is no contact between the scraping up body16and the adhesive roll21, and it is preferable to set a distance between the brush end portion of the scraping body16and the outermost peripheral surface of the adhesive roll21to about 2 to 3 mm in view of the adhesiveness of the dust.

(2) With respect to the flooring, in the same manner with carpet, since the adhesive roll21does not directly contact with the flooring, the adhesive roll21is not adhered to the flooring.

(3) The dust scraped up by the scraping up body16is immediately adhered to the adhesive roll21so as to be removed, the hairs or the like are not wound around the scraping up body16and are not left there, the scraping up body16is always cleaned due to the contact with the adhesive roll21and a cleaning performance thereof is stably maintained.

(4) The contact rotating body18mounts the adhesive roll21thereon, and it securely and simultaneously rotates with the adhesive roll21in an interlocking manner. Accordingly, it is possible to evenly and effectively make good use of the adhesive surface of the adhesive roll21in contact with the scraping up body16, and it is possible to securely adhere and pick up the dust scraped up by the scraping up body16by the new adhesive surface of the adhesive roll21. At this time, since the adhesive roll21may ride over both of the scraping up body16and the contact rotating body18, it is possible to attach any kinds of adhesive rolls21having several kinds of large and small outer diameters to the cleaning device10. Accordingly, freedom of manufacturing can be had for the outer diameter of the adhesive roll21, and it is possible to select an adhesive roll21having a proper outer diameter in correspondence to the floor condition.

(5) The contact rotating body18presses the dust adhered and picked up by the adhesive roll21to the adhesive surface of the adhesive roll21so as to fix the pick-up state of the dust. In this case, the dust which the contact rotating body18picks up due to the contact with the floor surface are adhered and picked up by the adhesive roll21, and the adhesive roll21keeps the contact rotating body18clean. That is, at the time of cleaning, the adhesive roll21and the contact rotating body18pick up the dust in contact state. Before cleaning or in correspondence to the cleaning condition, the adhesive roll21and the contact rotating body18may be in contact or non-contact state.

(6) Since the adhesive roll21can be supported by the scraping up body16and the contact rotating body18, it is possible to make the supporting shaft for supporting the adhesive roll21to the frame15or the like unnecessary. It is easy to replace the adhesive roll21and it is possible to keep the rotation of the adhesive roll21from being resisted due to a supporting shaft contact fault at a time of cleaning. Further, it is possible to reduce the cost of the cleaning device10.

(7) It is possible to form a closed space surrounded by the scraping up body16, the contact rotating body18and the adhesive roll21on the floor surface and it is possible to keep the dust scraped up by the scraping up body16in the closed space so as to pick it up. Accordingly, the dust is not diffused widely and the peripheral portion is not made dirty.

(8) It is possible to arrange the adhesive roll21upward in the rear portion in the rotational direction of the scraping up body16and at the position close to the scraping up body16, and it is possible to pick up the dust scraped up by the scraping up body16immediately close thereto in the scraping up direction by the adhesive roll21. It is unlikely to miss the scraped up dust.

(9) The dust which the scraping up body16scrapes up from the deep portion in the fiber of the carpet, and the dust which the scraping up body16scrapes rearward from the hard flat surface of the flooring are also scooped up by the dustpan body23in the rear portion of the scraping up body16so as to be securely guided in a direction of the adhesive roll21, whereby it is possible to improve a dust collecting performance.

(10) Since the scraping up body16is provided with the tire portion16B, the tire portion16B is pressed to the floor surface due to the weight of the cleaning device10so as to rotate, thereby securely rotating the scraping up body16. Since the scraping up diameter is larger than the tire diameter, the scraping up portion16A strongly scrapes up the dust due to the rebound force of bending deflection so as to improve the scraping up performance, and the dust in the deep portion of the carpet fiber can be well scraped out.

(11) Since the scraping up portion16A and the tire portion16B of the scraping up body16are concentrically formed and the tire portion16B rotates while being pressed to the floor surface, the scraping up portion16A rotates in a direction of scraping up the dust on the floor surface rearward with respect the forward moving direction of the cleaning device10(a forward direction). Accordingly, it is possible to take in the scraped up dust by the dustpan body23and the adhesive roll21inside the frame15without pressing the dust out of the frame15.

(12) Since the scraping up portion16A of the scraping up body16rotates in the forward direction mentioned above, the dustpan body23is arranged close to the rear portion of the scraping up portion16A, so that the dustpan body23does not interfere with the intake of dust into the cleaning device10moving in the forward direction. On the contrary, in the case that the scraping up portion16A of the scraping up body16rotates in a reverse direction due to a gear train being interposed between the scraping up portion16A and the tire portion16B or the like, the dustpan body23is arranged close to the front portion of the scraping up portion16A, and the dust taken in is caught in the dustpan body23in the front portion of the scraping up portion16A, whereby it is possible to prevent the dust from moving forward to the scraping up portion16A. Further, when arranging the dustpan body23in the forward portion of the scraping up portion16A and upward from the floor surface, the dustpan body23does not prevent the dust from moving forward to the scraping up portion16A. However, the dustpan23passes the dust scraped up by the scraping up portion16A straight therethrough from the lower portion of the dustpan23, whereby the dust cannot be taken in the dustpan body23and the adhesive roll21.

(13) The contact rotating body18is provided with an elastic body surface, whereby it is possible to firmly press and fix the dust adhered and picked up in the adhesive roll21to the adhesive surface of the adhesive roll21.

(14) In the case that the adhesive force of the adhesive roll21is strong, since the adhesive roll21and the contact rotating body18rotate together, it is hard to rotate them, and the operation becomes heavy. Accordingly, it is possible to lighten the rotation by providing at least two concavo-convex portions on the surface of the contact rotating body18. That is, by providing the concavo-convex portion in the contact rotating body, it is possible to form a gap between the adhesive roll21and the contact rotating body18, whereby it is possible to reduce the contact area between the two and to improve operability. Since the dust attached to the contact rotating body18is transferred to the adhesive roll21without a close attachment between the adhesive roll21and the contact rotating body18, a height of the concavo-convex portion is preferably between 0.1 and 0.5 mm, and more preferably between 0.2 and 0.4 mm. In this case, the concavo-concave portion corresponds to a structure obtained by applying a rib, a convex portion, a recess portion, a crimping surface or the like to the surface of the contact rotating body18.

(15) At a time of storing the cleaning device10, it is possible to hold the supporting arm13vertically upward with respect to the frame15in the standing-up state and sit the leg portion25of the frame15in the standing-up state on the floor surface, whereby it is possible to stably store the device in a compact attitude. Since the scraping up body16does not sit on the floor surface during the storage, the scraping up body16does not wear out and it is possible to stably maintain the scraping up performance thereof.

The amount of application of the adhesive agent on the base material of the adhesive roll can not be conventionally increased so much due to the need to avoid pick-off of flocked fabrics in the carpet or the like, since the conventional adhesive roll is directly transferred to the surface to be cleaned, so that the amount has been between 10 and 20 g/m2. Accordingly, the dust covers the surface of the adhesive roll, and the adhesive force is weakened, whereby a surface capable of cleaning the floor (an area maintaining a cleaning force) after the new adhesive surface is exposed is small. On the contrary, in accordance with the present invention, since the adhesive roll is not directly in contact with the surface to be cleaned, the amount of application of the adhesive agent on the adhesive roll can be increased, so that it is possible to increase the cleaning force maintaining area. In accordance with the present invention, the amount of application of the adhesive agent on the base material of the adhesive roll is preferably between 25 and 50 g/m2for the purpose of securing a proper peeling force until the adhesive surface is replaced by a new adhesive surface, and is more preferably between 25 and 35 g/m2.

Further, in accordance with the embodiment mentioned above, in a state of lifting up the frame15by the supporting arm13, the scraping up body16is positioned forward and upward with respect to the contact rotating body18. Accordingly, since the contact rotating body18is first placed and thereafter the scraping up body16is placed at a time of placing the frame15on the floor surface by the supporting arm13, it is possible to smoothly start cleaning.

The contact rotating body18and the adhesive roll21need not to rotate complete-simultaneously in an interlocking manner. They can rotate with slightly sliding each other.

In a second embodiment, the same reference numerals are applied to the same elements as those of the first embodiment and the description thereof will be omitted.

In the second embodiment, the adhesive roll21is rotatably supported on the scraping up body16and the contact rotating body18via the rotational shaft22so as to ride over them in such a manner as to be freely rotated in parallel thereto, and the adhesive roll21rotates so as to interlock with the rotation of the scraping up body16and the contact rotating body18. A take in and out port for the adhesive roll21is provided in an upper portion of the frame15and is covered by a detachable transparent cover15A. The adhesive roll21may be a take-up roll of an adhesive sheet or an adhesive elastomer surface reusable by being cleaned. The adhesive roll21in accordance with the present embodiment is constituted by a take-up roll having an adhesive sheet21A wound around a core21B, and an adhesive surface of the adhesive sheet21A facing outside can be wound off and cut. In this case, an amount of application of an adhesive agent on a base material in the adhesive sheet21A is preferably set to be between 25 and 50 g/m2and more preferably between 25 and 35 g/m2.

In this case, the rotational shaft22of the adhesive roll21is movably supported by supporting guides22B formed in a rectangular hole shape and provided in both side portions of the frame15via bearing sliders22A in both ends for the purpose of bringing the adhesive roll21into contact with the contact rotating body18and keeping a distance relation (a distance of 0 or a small gap A) between the adhesive roll21and an outer diameter of the scraping up body16(a scraping up diameter of the scraping up portion16A) constant. That is, the scraping up body16and the adhesive roll21may be in non-contact with each other, and the distance between the brush front end portion of the scraping up body16and the outermost peripheral surface of the adhesive roll21is preferably about 2 to 3 mm in view of an adsorptiveness of the dust. In particular, as shown inFIG. 6, the supporting guide22B mentioned above is provided so that the rotational shaft22of the adhesive roll21moves along an expected track M drawn in the frame15when the adhesive roll21is positioned so as to ride over an imaginary circle R around the rotational shaft17of the scraping up body16defined so that the adhesive roll21keeps the fixed distance relation mentioned above, and the contact rotating body18, and the outer diameter of the adhesive roll21is reduced so as to be changed from a large circle to a small circle inFIG. 6in correspondence to a consumption of the adhesive sheet21A.

Further, a spring22C corresponding to an urging means for downward urging the bearing slider22A is installed within the supporting guide22B provided in both side portions of the frame15, and pressure contacts the adhesive roll21with the contact rotating body18.

A dustpan body23is supported at a rear portion of the scraping up body16in the frame15. The dustpan body23has a bottom surface portion23A in contact with a floor surface, and a scooping surface portion23B facing to the scraping up body16with no gap (or via a gap) and formed in a curved surface shape (or a flat surface shape), and flat supporting shaft portions23C in both sides of the dustpan body23are supported at rectangular holes24formed in an oblique linear shape (a curved shape may be employed) rearward bent with respect to a vertical direction in both sides of the frame15so as to freely move in parallel along a vertical direction. The dustpan body23guides all the dust scraped up by the scraping up portion16A of the scraping up body16to the adhesive roll21by the scooping surface portion23B without missing the dust moving rearward along the floor surface, by vertically moving the supporting shaft portions23C with respect to the rectangular holes24and bringing the bottom surface portion23A and the lowermost end portion of the scooping surface portion23B into contact with the floor surface with no gap due to their own weights.

Therefore, in accordance with the present embodiment, the following effects can be obtained.

(1) In the carpet, the dust is scraped up by the scraping up body16and thereafter the dust is adsorbed and picked up onto the adhesive roll21. Since the adhesive roll21is not directly in contact with the carpet, the carpet is not damaged, it is possible to pick up the dust in the deep portion of the carpet fiber and a persistence of the adhesion performance of the adhesive roll21is improved.

(2) With respect to the flooring, in the same manner as that of the carpet, since the adhesive roll21is not directly in contact with the flooring, the adhesive roll21is not adhered to the flooring.

(3) The contact rotating body18is in contact with the adhesive roll21thereon and securely rotates the adhesive roll21in an interlocking manner. Accordingly, it is possible to always keep the adhesive surface of the adhesive roll21in contact with the scraping up body16due to the rotation, and it is possible to securely adsorb and pick up the dusts scraped up by the scraping up body16by the new adsorbing surface of the adhesive roll21. At this time, since the adhesive roll21may ride over both of the scraping up body16and the contact rotating body18and the rotational shaft22of the adhesive roll21moves along the imaginary track M drawn in the frame15, it is possible to use any kinds of adhesive rolls21having several kinds of large and small outer diameters to the cleaning device10. Accordingly, a freedom of manufacturing can be given to the outer diameter of the adhesive roll21, and it is possible to select the adhesive roll21having a proper outer diameter in correspondence to the floor condition.

(4) Since the rotational shaft22of the adhesive roll21is movably supported by the frame15and the adhesive roll21keeps a distance relation with respect to the outer diameter of the scraping body16constant (the distance of 0 or a small gap A) even when the outer diameter of the adhesive roll21is gradually reduced, the rotation operating force applied to the scraping body16and the contact rotating body18by the user is not made heavy, and it is possible to stably and securely move the dust scraped up by the scraping up body16to the adhesive roll21so as to improve a performance of picking up the dust.

That is, in the case that the distance between the adhesive roll21and the outer diameter of the scraping up body16is small, there is a risk that the adhesive roll21adhered to the front end of the flocked fabric of the scraping up portion16A in the scraping up body16is gradually attracted to the side of the scraping up body16in correspondence to the rotation of the both, gradually increases the adhesive length with respect to the flocked fabric and finally sinks into a valley portion between the scraping up body16and the contact rotating body18so as to prevent rotation.

Further, when the gap between the adhesive roll21and the outer diameter of the scraping up body16becomes too large, the dust scraped up by the scraping up body16cannot stably and securely reach the side of the adhesive roll21.

The distance relation between the adhesive roll21and the outer diameter of the scraping up body16is preferably 1 to 10 mm, and more preferably about 3 mm. In this case, when the material of the flocked fabric of the scraping up body16affects a peeling property which is hard to be adhered to the adhesive roll21or the like, it is possible to set the gap between the both to 0.

(5) Since the adhesive roll21is movably supported to the frame15and is strongly pressure contacted with the contact rotating body18by the spring22C (the urging means), it is possible to firmly adhere the dust on the surface of the adhesive roll21. Further, since the adhesive roll21is backed up and supported by the spring22C (the urging means), the adhesive roll21does not jump up even when passing through the contact point with respect to the contact rotating body18while holding the dust, and there is no dust drop due to the vibration of the jump-up.

(6) Since the dusts attached on the surface of the adhesive roll21is strongly pressure contacted with the surface of the adhesive roll21as mentioned in the item (5) above, the dust is pressed flat without forming lumps in some portions on the surface of the adhesive roll21. Accordingly, the previously attached lump-shaped dust does not largely protrude forward from an unused surface of the adhesive roll21so as to prevent the new dust from moving forward, and it is possible to effectively use all the surface of the adhesive roll21and to increase an amount of dust picked up onto the adhesive roll21.

As the adhesive roll used in the present invention, a structure obtained by detachably covering a cylindrical sheet on a core roll may be used. At this time, an original form of the cylindrical sheet is formed in a sheet type envelope-like sheet, and a lot of envelope-like sheets can be laminated with each other so as to be stored.

Further, in accordance with the present invention, the scraping up body is not limited to the brush, and may be constituted by a sponge, a rubber blade, an elastomer, an elastic projection body or the like.

Further, in accordance with the present invention, the contact rotating body is not limited to the roll body, and may be constituted by a tire or the like. Further, the contact rotating body is not limited to the structure constituted by the elastic body, and may be constituted by an inelastic body.

Further, in accordance with the present invention, the floor surface is constituted by a tatami mat, flooring, a carpet or the like, and a significant and unique effect can be obtained against the carpet.

As mentioned above, in accordance with the present invention, it is possible to stably clean both of the carpet and the flooring for a long time.

Further, in accordance with the present invention, it is possible to improve the operability of the cleaning device by the user and it is possible to improve the performance of picking up the dust.

Although the invention has been illustrated and described with respect to several exemplary embodiments thereof, it should be understood by those skilled in the art that the foregoing and various other changes, omissions and additions may be made to the present invention without departing from the spirit and scope thereof. Therefore, the present invention should not be understood as limited to the specific embodiment set out above, but should be understood to include all possible embodiments which can be embodied within a scope encompassed and equivalents thereof with respect to the features set out in the appended claims.