JP5413353B2 - Floor suction tool and vacuum cleaner - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a floor suction tool connected to a vacuum cleaner, and specifically, a floor suction tool in which hair and lint are less likely to be entangled with a rotating brush having brush hairs implanted on a brush shaft, and It is related with the vacuum cleaner carrying this.

  Some floor suction devices connected to vacuum cleaners have a built-in rotating brush so that dust, hair, etc. adhering to the floor surface of carpets, flooring, tatami mats, etc. can be scraped and sucked. .

The rotating brush has a brush shaft that is rotatable or forcibly rotated by a motor on the casing of the floor suction tool, and a brush row in which one or a plurality of brush hairs are implanted in parallel or spirally with the brush shaft, The scraping performance of dust is improved (for example, see Patent Document 1).
Japanese Utility Model Publication No. 62-116918

  The hair and lint scraped by the brush hair may get entangled with the brush hair, or the tangled hair and lint may wind around the rotating brush. As a result, the scraping performance of the brush for the floor can be reduced by reducing the scraping performance of the brush hair, increasing the rotational resistance of the rotating brush, generating germs and bad smell due to the attached hair, etc., and reducing the suction capacity of the floor suction tool. It may be reduced.

  Conventionally, in such a case, it has been necessary for the user to remove the wound hair and lint by hand using tweezers or the like.

  In Patent Document 1, a ring in which a blade body that cuts wound hair or the like is projected toward the inner periphery is fitted into a rotating brush, and the ring is slid in an axial direction so that the hair or the like is cut by the blade body. ing. However, even if the hair spanned between the brush rows can be cut, the hair entangled with the brush hair itself is not cut, and further, the hair after cutting must be removed by hand with tweezers etc. The trouble that has to be done has not been eliminated. Furthermore, the user has to perform the ring operation himself before or after using the vacuum cleaner.

  An object of the present invention is to provide a floor suction tool including a rotating brush capable of reducing as much as possible tangling of hair, lint and the like to the brush hair.

The present invention relates to a brush shaft that is rotatably supported in a casing having an open bottom surface, and a brush row in which brush hairs are planted on a peripheral surface of the brush shaft in parallel or spirally with respect to an axis. A floor suction tool for a vacuum cleaner comprising a rotating brush having a rotating brush and a motor for rotating the rotating brush, wherein the brush shaft has a substantially rectangular sheet member with one of the long sides between the brush rows A sheet member that is attached to the brush shaft in parallel with the brush row and has a short side longer than the brush bristles is attached together with the rotating brush while the sheet member bulges outward due to centrifugal force and suction force associated with rotation of the rotating brush. The rotating brush rotates forward and backward by the motor.

  According to the floor suction tool of the present invention, the sheet member can prevent hair or lint from being entangled with the rotating brush and the brush hair of the rotating brush. The net member or the sheet member bulges outward due to the force and the suction force of the electric vacuum cleaner, and the apparent outer diameter of the rotating brush is enlarged, so that the hair and the like are not easily entangled with the rotating brush.

  When the net member is attached to the rotating brush, the hair entangled with the brush hair is scooped out by the net member, so that the adhesion of the hair or the like can be more effectively prevented.

It is a bottom view of the floor suction tool equipped with the net member of the present invention. It is arrow sectional drawing in alignment with line XX of FIG. It is a figure which shows the rotary brush with which the cylindrical net member was mounted | worn, Comprising: It is a figure which shows a part of net member in cross section. It is sectional drawing of the suction tool for floors which shows the state which rotated the rotating brush. It is sectional drawing of the suction tool for floors which shows the state which made the rotating brush contact the floor surface. It is sectional drawing of the suction tool for floors which shows the state where the hair wound around the rotating brush. It is sectional drawing of the suction tool for floors which shows the state where the net member around which the hair wound was swollen. It is sectional drawing of the suction tool for floors which shows the state from which the hair removed from the rotating brush by the swelling of a net member. (a) is a figure which shows the direction of the desired mesh | network of a net member, (b) is a figure which shows the state which the mesh | network spread in the direction perpendicular | vertical to an axial direction. It is a figure which shows the attachment form from which a cylindrical net member differs, Comprising: It is a figure which cuts and shows a part of net member. It is a figure which shows the attachment form from which a cylindrical net member differs, Comprising: It is a figure which cuts and shows a part of net member. It is a figure which shows the attachment form from which a cylindrical net member differs, Comprising: It is a figure which cuts and shows a part of net member. It is a figure which shows the attachment form from which a cylindrical net member differs, Comprising: It is a figure which cuts and shows a part of net member. It is a figure which shows the mounting method to the rotating brush of the cylindrical net member which has an opening in the center. It is a right view of the net member of FIG. It is a figure which shows the state which mounted | wore the rotating brush with the cylindrical net member which has an opening in the center, Comprising: It is a figure which shows a part of net member in cross section. It is a figure which shows the rotating brush which attached the net member which consists of two cylindrical bodies, Comprising: It is a figure which shows a part of net member in cross section. It is a figure which shows the rotating brush which attached the net member which consists of two cylindrical bodies, Comprising: It is a figure which shows a part of net member in cross section. It is a figure which shows the mounting method to the rotating brush of the net member which consists of a cylindrical body. It is a top view of a substantially rectangular sheet-like net member. It is a top view of the rotating brush which attaches a sheet-like net member. It is a top view of the rotating brush which attached the sheet-like net member. It is sectional drawing of the suction tool for floors which has a rotating brush which attached the sheet-like net member. It is sectional drawing of the suction tool for floors which shows the state where the hair wound around the rotating brush. It is sectional drawing of the suction tool for floors which shows the state where the sheet-like net member around which the hair wound was swollen. It is sectional drawing of the suction tool for floors which shows the state from which the hair removed from the rotating brush by the swelling of a sheet-like net member. It is sectional drawing of the suction tool for floors which shows the attachment form from which a sheet-like net member differs. It is sectional drawing of the suction tool for floors which shows the state which attached the sheet-like net member of 2 sheets to the rotating brush. It is sectional drawing of the suction tool for floors which shows the state where the hair wound around the rotating brush. It is sectional drawing of the suction tool for floors which shows the state where the sheet-like net member around which the hair wound was swollen. It is sectional drawing of the suction tool for floors which shows the state from which the hair removed from the rotating brush by the swelling of a sheet-like net member. It is sectional drawing of the suction tool for floors which shows the different attachment form of two sheet-like net members. It is a top view of the sheet member attached to a rotating brush. It is a top view of the rotating brush which attached the sheet | seat member. It is arrow sectional drawing which follows the line YY of FIG. (a) is sectional drawing of the rotating brush which attached the sheet member of 2 sheets, (b) is sectional drawing which shows the state which the sheet member expanded by rotation of the rotating brush. (a) is sectional drawing of the rotating brush which attached the sheet member of 2 sheets, (b) is sectional drawing which shows the state which the sheet member expanded by rotation of the rotating brush.

  The floor suction tool (10) of the present invention is detachably attached to a vacuum cleaner via a connection pipe or a flexible connection hose. In the case of a so-called vertical vacuum cleaner, the vacuum cleaner may be integrated with the vacuum cleaner.

  The floor suction tool (10) shown in FIGS. 1 and 2 is of a type that can be detachably attached to a vacuum cleaner via a connecting pipe or the like. ) And a casing (14) attached to the connection pipe (12) so as to be able to swing vertically and horizontally.

  The casing (14) is hollow and has a wide shape on the left and right. A suction port (16) is formed in the lower surface of the casing (14), and the suction port (16) communicates with the connection pipe (12) through the inside of the casing (14).

  As shown in FIGS. 1 and 2, a rotating brush (20) is mounted inside the casing (14).

  As shown in FIG. 3, the rotating brush (20) includes a brush shaft (22) having bearings (23) and (23) attached to both ends. The brush shaft (22) is a solid member having a circular cross section, and a mounting cylinder (24) is fitted to the peripheral surface so as to be integrally rotatable.

  As shown in FIGS. 2 and 3, a plurality of recesses (25a) (25b) (25c) are formed in the axial direction on the outer peripheral surface of the mounting cylinder (24), and the recesses (25a) (25b) The brush rows (30) and (34) in which a large number of brush hairs (31) and (35) are planted, and a rubber blade (37) are fitted.

  The brush row indicated by reference numeral (30) is formed by implanting a large number of soft brush hairs (31) on a rubber brush substrate (32) that fits into the recess (25a). 20), a brush row (30) is provided every 90 degrees.

  The brush row indicated by reference numeral (34) is also a brush bristle (35) planted on a rubber brush substrate (36) that fits in the recess (25b). It is formed from a material harder than the brush hair (31) of 30). The brush row (34) is attached at a position that is 45 degrees away from the brush row (30) and faces the diameter direction of the brush shaft (22).

  The rubber blade (37) projects vertically from the rubber blade substrate (38). The rubber blades (37) are attached to the positions facing the brush shaft (22) in the diameter direction between the brush rows (30) and (30) and at positions shifted by 90 degrees from the brush rows (34).

  The number, shape, hardness, type, and the like of the brush rows (30) (34) implanted in the rotating brush (20) are not limited to the above embodiment, and the rubber blade (37 ) May be provided as necessary.

  In this embodiment, the recesses (25a), (25b), and (25c) are formed in a spiral shape with respect to the brush shaft (22), and as shown in FIGS. 1 and 3, the brush rows (30) and (34) are formed. ) And the rubber blade (37) are attached in a twisted state with respect to the brush shaft (22). The brush rows (30) and (34) and the rubber blade (37) were formed in a spiral shape when the vacuum cleaner was sucked to improve the rotational performance of the rotating brush (20), from the carpet or floor surface. This is to improve the scraping performance of trash and hair. Of course, the recesses (25a), (25b) and (25c) may be formed in parallel to the brush shaft (22).

  As shown in FIGS. 1 to 3, a net member (40) is fitted to the outer periphery of the rotating brush (20). The net member (40) can be made of nylon or the like, and the mesh size is preferably formed so that one side is about 2 to 10 mm. When the mesh is smaller than 2 mm, the brush hairs (31) and (35) are hardly exposed from the mesh, and the scraping performance by the brush rows (30) and (34) may be lowered. When the mesh is larger than 10 mm, hair, lint, etc. may enter the rotary brush (20) from the mesh and get entangled with the brush hair (31) (35) and the brush shaft (22).

  The net member (40) is formed in a cylindrical shape as shown in FIGS. The diameter of the net member (40) is the same as that of the rotating brush (20) or about 1 to 3 mm larger than that. The smaller the difference in diameter between the rotating brush (20) and the net member (40), the smaller the interference with the casing (14) and the vibration noise caused by the rotation of the net member (40). Conversely, as the diameter of the net member (40) is larger than that of the rotating brush (20), the effect of preventing entanglement of hair or the like by the net member (40) can be enhanced. When the net member (40) is stretchable, the diameter may be smaller than the diameter of the rotating brush (20).

  The length of the net member (40) in the axial direction is longer than the portion of the brush shaft (22) where the brush rows (30) and (34) are formed.

  The net member (30) is fitted so as to cover the outer periphery of the rotating brush (20), and both ends thereof are rotatably attached to or fixed to the brush shaft (22).

  FIG. 3 shows an example in which both ends of the net member (40) are attached to the brush shaft (22) with an annular ring (41). The annular ring (41) is made of plastic or the like, and a pair of ring halves are attached to the brush shaft (22) from above and below with the net member (40) sandwiched therebetween, and the ring halves are fixed to each other. Thus, the net member (40) is attached to the rotating brush (20). The inner diameter of the ring (41) may be appropriately determined based on the diameter of the brush shaft (22) and the thickness of the net member (40) so that the net member (40) does not fall off.

  In the case of the embodiment of FIG. 3, the net member (40) is non-rotatably fixed to the brush shaft (22) by the ring (41).

  As shown in FIGS. 1 and 2, the rotating brush (20) fitted with the cylindrical net member (40) has a part of the outer periphery of the rotating brush (20) as a suction port of the floor suction tool (10). The bearings (23) and (23) at both ends are mounted by being fixed to the casing (14) of the floor suction tool (10) so as to protrude downward from (16).

  When the floor suction tool (10) is connected to a vacuum cleaner and the vacuum cleaner is driven, the rotating brush (20) rotates in the direction of arrow A in FIG. 4 due to the airflow generated by the suction of the vacuum cleaner.

  The net member (40) attached to the rotating brush (20) is swelled in the diametrical direction as shown by an arrow B in FIG. 20) Rotate together.

  In this state, when the floor suction tool (10) is brought into contact with the floor surface (80), the rotating brush (20) has the net member (40) along the floor surface (80) as shown in FIG. Thus, the tips of the brush rows (30) and (34) that are in contact with the floor surface (80) are exposed from the net member (40).

  When the floor suction tool (10) is moved back and forth along the floor surface (80), the floor surface (30) (34) of the rotating brush (20) exposed from the net member (40) causes the floor surface ( 80) Garbage containing hair, lint, etc. is scraped.

  FIGS. 6 to 8 show the mechanism by which the hair (82) is removed from the rotary brush (20) by the net member (40) from the state where the long hair (82) is entangled with the outer periphery of the rotary brush (20). FIG. For easy understanding, as shown in FIG. 6, the hair (82) is entangled around the outer periphery of the rotating brush (20) in a state where the rotating brush (20) is not rotating in advance.

  As shown in FIG. 6, when the hair (82) is entangled with the outer periphery of the rotating brush (20), when the vacuum cleaner is driven, the net member (40) swells as shown in FIG. Even if the hair (82) wound around the rotating brush (20) is entangled with the brush row (30) (34), the brush row (30) (34) is increased due to the expansion of the outer diameter due to the swelling of the net member (40). Be taken from. As a result, as shown in FIG. 8, the hair (82) is separated from the rotary brush (20) and sucked into the vacuum cleaner by the suction force of the vacuum cleaner and the rotation of the rotary brush (20).

  Further, when the net member (40) swells, the apparent outer diameter of the rotating brush (20) increases, so that hair or the like is less likely to be entangled with the rotating brush (20).

  In order to increase the swelling of the net member (40), it is desirable that the net member (40) is configured so that the expansion / contraction direction is orthogonal to the rotating brush (20). Specifically, as shown in FIG. 9 (a), the net member (40) is formed by configuring the net member (40) so that the rows of meshes (42) intersect the axial direction of the rotating brush (20). ) Extends perpendicular to the axial direction as shown in FIG. 9 (b), and the diameter of the net member (40) is rotated by the driving of the vacuum cleaner as shown in FIGS. The hair (82) and the like entangled with the rotating brush (20) can be effectively removed by enlarging greatly in the direction away from the brush (20).

  Hereinafter, different embodiments of the attachment method of the net member (40) will be described with reference to the drawings.

  FIG. 10 shows an embodiment in which both ends of the net member (40) are fixed to the brush shaft (22) with rubber bands (43).

  Further, FIG. 11 shows that a rubber band (43) is fitted to both ends of the net member (40) in advance, and the end of the net member (40) is sewn, bonded or welded so that the band (43) does not fall off. This is an example. Since the net member (40) can be fitted to the rotating brush (20) with the band (43) attached, the net member (40) can be easily attached and replaced.

  FIG. 12 shows an embodiment in which a net member (40) is attached to the outer periphery of a substantially C-shaped ring (44) that is partially open to fit on the brush shaft (22) by bonding or welding. By adjusting the inner diameter of the ring (44), the net member (40) can be made unrotatable or freely rotatable with respect to the rotating brush (20). By making the net member (40) freely rotatable with respect to the rotating brush (20), the net member (40) is easily returned to the original state even if it is twisted.

  FIG. 13 shows an embodiment in which both ends of the brush shaft (22) are expanded and the net member (40) is directly bonded or welded to the brush shaft (22).

  14 to 16 show an embodiment in which an opening (45) is provided in the center of the net member (40), and the rotating brush (20) can be fitted through the opening (45).

  As shown in FIGS. 14 and 15, rubber annular plates (46) are attached to both ends of the net member (40). The annular plate (46) has a mounting hole (47) in which the brush shaft (22) is fitted on the inner peripheral side, so that the mounting hole (47) can be easily attached to the brush shaft (22). A plurality of notches (48) are formed radially from the outer periphery toward the outer periphery. The net member (40) is bonded or welded to the outer periphery of the annular plate (46).

  An opening (45) is formed in the center of the net member (40) in the axial direction. As shown in FIG. 14, the rotating brush (20) is inserted from the opening (45), and one annular plate (46 ) Is passed through the brush shaft (22), and then the rotating brush (20) is inserted into the net member (40) using the stretchability of the net member (40), and the other annular plate (46) is attached. The net member (40) is attached to the rotating brush (20) by being mounted on the brush shaft (22) (FIG. 16).

  In the floor suction tool (10), the hair and lint are likely to get entangled on both ends where the suction force from the connection pipe (12) is weaker than the center, so it is formed on the net member (40). The opening (45) may be closed by sewing or the like, but even if the opening (45) is not closed, entanglement of hair or the like to the rotating brush (20) can be prevented.

  17 and 18 show an embodiment in which the net member (40) is formed from two cylindrical bodies (50) (50). Each annular body (50) is attached to one end of the annular plate (46) shown in FIG. 15 as shown by an arrow C in FIG. It is inserted into the rotating brush (20), and the annular plate (46) is fitted to the brush shaft (22).

  FIG. 17 shows an embodiment in which the cylindrical bodies (50) and (50) are overlapped at the approximate center of the rotating brush (20). It is desirable that the overlapping portions of the cylindrical bodies (50) and (50) are not misaligned with each other by adhesion or welding.However, since the mesh of each cylindrical body (50) and (50) is caught by the brush hair, Misalignment is unlikely to occur without performing such operations.

FIG. 18 shows an embodiment in which the cylindrical bodies (50) and (50) do not overlap at the approximate center of the rotating brush (20). Near the center of the rotating brush (20), the suction force of the vacuum cleaner is strong, so it is difficult for hair to get entangled, so the cylindrical body (50) (50) is attached to both ends of the rotating brush (20) where the suction force weakens. By arranging, entanglement of hair and the like can be effectively prevented.
<Example 2>
This embodiment is an embodiment in which a sheet-like net member (52) is attached to a rotating brush (20) as shown in FIG.

  As shown in FIG. 20, the net member (52) is cut into a substantially parallelogram, and a mounting surface fastener (54) is formed on one long side. In FIG. 20, the net member (52) has a substantially parallelogram shape because, as shown in FIG. 21, the rotating brush (20) is formed with the brush rows (30) and (34) spirally. is there. When the brush rows are formed in parallel to the axial direction on the rotating brush (20), the net member (52) can be substantially rectangular. In the present specification, a substantially rectangular shape including a substantially parallelogram and a substantially rectangular shape is referred to. Moreover, the free end side of the long side of the net member (52) does not need to be cut in a straight line, and may have a corrugated shape, a circular shape, or a shape with a recessed central side.

  The short side of the net member (52) is formed slightly longer than the outer peripheral length of the rotating brush (20), and when the net member (52) is attached to the rotating brush (20) as shown in FIG. It is desirable that part of them overlap in the circumferential direction.

  The net member (52) shown in FIG. 20 is attached to the rotating brush (20) shown in FIG. The rotating brush (20) is formed with a hook-and-loop fastener (27) for attaching the net member (52) between the brush rows (30) and (34), and the hook-and-loop fastener (54) of the net member (52) is attached to the rotating brush (20). The net member (52) rotates as shown in FIGS. 22 and 23 by being attached to the surface fastener (27) of the rotary brush (20) and winding the net member (52) around the rotary brush (20). Removably attached to the brush (20). By using the hook-and-loop fasteners (27) and (54), the sheet-like net member (52) can be detached, so that the net member (52) can be replaced.

  As shown in FIG. 23, the net member (52) is preferably attached so as to be wound in the opposite direction with respect to the rotation direction A of the rotary brush (20). This is because by wrapping in the direction opposite to the rotation direction A, it rotates integrally with the rotary brush (20) along the rotation of the rotary brush (20).

  24 to 26 show that the hair (82) has a sheet-like shape from the state in which the long hair (82) is entangled with the outer periphery of the rotating brush (20) to which the sheet-like net member (52) shown in FIG. 23 is attached. It is a figure which shows the mechanism removed from the rotating brush (20) by the net member (52). For easy understanding, as shown in FIG. 24, the hair (82) is entangled around the outer periphery of the rotating brush (20) in a state where the rotating brush (20) is not rotating in advance.

  As shown in FIG. 24, when the hair (82) is entangled with the outer periphery of the rotating brush (20), when the vacuum cleaner is driven, as shown in FIG. 25, the suction force and the rotation (arrow A in the figure) The net member (52) swells by the centrifugal force (arrow B in the figure). Even if the hair (82) wound around the rotating brush (20) is entangled with the brush row (30) (34), the outer diameter of the brush member (30) (34) increases due to the expansion of the net member (52). Be taken from. As a result, as shown in FIG. 26, the hair (82) is separated from the rotary brush (20) and sucked into the vacuum cleaner by the suction force of the vacuum cleaner and the rotation of the rotary brush (20).

  Note that, for the same reason as in the first embodiment, the net member (52) is preferably configured such that the expansion / contraction direction is orthogonal to the rotating brush (20) as shown in FIG.

  FIG. 27 is a diagram showing different attachment modes of the sheet-like net member (52). As shown in FIG. 27, a rubber blade (37) is erected in parallel to the brush rows (30) and (34) on the mounting cylinder (24) in which the brush rows (30) and (34) are planted, A sheet-like net member (52) is attached to the blade (37) by bonding, welding or sewing.

  FIG. 28 shows an example in which two sheet-like net members (52) and (52) are attached at positions opposed to the brush shaft (22) in the diameter direction.

  When the net members (52) and (52) are attached to the rotating brush (20), the short side length is adjusted so that the free end side partially overlaps the other net member.

  29 to 31 show a state in which a long hair (82) is entangled with the outer periphery of the rotating brush (20) to which the two sheet-like net members (52) and (52) shown in FIG. FIG. 5 is a view showing a mechanism in which sheet-like net members (52) and (52) are removed from the rotating brush (20). For easy understanding, as shown in FIG. 29, the hair (82) is entangled around the outer periphery of the rotating brush (20) in a state where the rotating brush (20) is not rotating in advance.

  As shown in FIG. 29, when the hair (82) is entangled with the outer periphery of the rotating brush (20), when the electric vacuum cleaner is driven, the net member is caused by the suction force and the centrifugal force due to the rotation as shown in FIG. (52) (52) swells. Even if the hair (82) wound around the rotating brush (20) is entangled with the brush row (30) (34), the brush row (30) is expanded by the expansion of the outer diameter due to the swelling of the net members (52) (52). Taken from (34). As a result, as shown in FIG. 31, the hair (82) is separated from the rotary brush (20) and sucked into the vacuum cleaner by the suction force of the vacuum cleaner and the rotation of the rotary brush (20).

  Further, since the apparent outer diameter of the rotating brush (20) is increased by the swelling of the net members (52) and (52), the hair and the like are less likely to be entangled with the rotating brush (20).

  By using two sheet-like net members (52) and (52), as shown in FIG. 30, the net members (52) and (52) are greatly increased outwardly by suction force and centrifugal force at two locations in the circumferential direction. Since it swells, the removal effect of hair (82) etc. can be enhanced as much as possible. Similarly, since the apparent outer diameter of the rotating brush (20) is expanded by the swelling of the net members (52) and (52), the hair and the like are less likely to be entangled with the rotating brush (20).

FIG. 32 is a diagram showing different attachment forms of the sheet-like net members (52) and (52). As shown in FIG. 32, rubber blades (37) and (37) are attached to the mounting cylinder (24) in which the brush rows (30) and (34) are implanted in parallel with the brush rows (30) and (34). The sheet-like net members (52) and (52) are attached to the blades (37) and (37) by bonding, welding, sewing, or the like, respectively.
<Example 3>
In Example 2, the net members (40) and (52) having meshes are attached to the rotating brush (20). However, as shown in FIG. 33, the sheet member (60) made of cloth, rubber, vinyl or the like is rotated. It may be attached to the brush (20).

  The sheet member (60) (60) is cut into a substantially rectangular shape (substantially parallelogram), a hook-and-loop fastener (54) is attached to one long side, and the hook-and-loop fastener attached to the rotating brush (20) side. (27) is mounted as shown in FIGS.

  In FIG. 33 to FIG. 35, two sheet members (60), (60) are attached to the rotating brush (20), but one or more than three sheet members (60), (60) may be attached. Good.

  When the vacuum cleaner is driven from the state of FIG. 36 (a), the free end side of the sheet member (60) swells outward due to the suction force and the centrifugal force caused by the rotation (arrow A) as shown in FIG. 36 (b). . As a result, the hair wound around the rotary brush (20) is drawn out from the brush rows (30) and (34) and sucked by the suction of the electric vacuum cleaner. Moreover, since the apparent outer diameter of the rotating brush (20) is expanded by the swelling of the sheet member (60), the hair and the like are less likely to be entangled with the rotating brush (20).

  As shown in FIG. 37, the sheet members (60), (60) are bonded, welded, or sewn to rubber blades (37), (37) standing in parallel with the brush rows (30), (34), respectively. May be attached. Also in this case, as shown in FIG. 37 (b), the rotary brush (20) rotates (arrow A) by driving the vacuum cleaner from the state of FIG. 37 (a), and the sheet members (60) (60 ) Spreads outward and the apparent outer diameter of the rotating brush (20) expands, and the hair wound around the rotating brush (20) can be removed in the same manner as described above.

  Comparing FIG. 36 (b) and FIG. 37 (b), when the length of the short side of the sheet member (60) is the same, the sheet member (60) is more attached to the blade (37). Since the apparent outer diameter by rotation of 60) increases, it can be seen that the wound hair can be effectively removed.

  In any of the above embodiments, the effect of removing hair or the like can be enhanced as much as possible by rotating the rotating brush 20 not only in one direction but also in the reverse direction. The forward / reverse rotation can be performed by the user moving the floor suction tool (10) back and forth with respect to the floor surface.

  Further, when a motor for rotating the rotating brush (20) in the forward and reverse directions is provided in the floor suction tool (10), the rotating brush (20) may be forcibly rotated in the forward and reverse directions. When the rotary brush (20) is rotated forward and backward by a motor, the rotary brush (20) is rotated forward during the operation of the vacuum cleaner, and the rotary brush (20) is rotated reversely for several seconds at the end of the operation. Good.

  INDUSTRIAL APPLICABILITY The present invention is useful as a floor suction tool that makes it difficult to entangle hair and lint on a rotating brush and a vacuum cleaner equipped with the suction tool.

(10) Floor suction tool
(20) Rotating brush
(22) Brush shaft
(30) Brush row
(34) Brush row
(40) Net member
(52) Sheet-like net member
(60) Sheet member

Claims (3)

A rotation having a brush shaft rotatably supported inside a casing having an open bottom surface, and a brush row in which brush bristles are formed on the peripheral surface of the brush shaft in parallel or spirally with respect to the axis. In a floor suction tool for a vacuum cleaner comprising a brush and a motor that rotationally drives the rotary brush,
The brush axis, and a generally rectangular sheet member, one of the long sides is mounted parallel to the brush shaft and the brush rows between the brush rows, short sides attach the long sheet member than the bristles, wherein the sheet member A floor suction tool characterized by rotating together with the rotating brush while bulging outward by centrifugal force and suction force accompanying rotation of the rotating brush, and rotating the rotating brush forward and backward by the motor. The floor suction tool according to claim 1, wherein there are a plurality of sheet members, and at least one pair is disposed at a position facing the diameter direction of the brush shaft. A vacuum cleaner comprising the floor suction tool according to claim 1 or 2 detachably or integrally.

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