JP6162485B2 - Cleaning tool - Google Patents

Description

  The present invention relates to a cleaning tool.

  As a cleaning tool, as described in Patent Document 1, there is a cleaning head having a side opening and a rotating brush. A dust invitation surface portion that guides dust from the surface to be cleaned to the side surface opening portion is provided along the lower end of the side surface opening portion. The rotating brush is fixed on the same axis as the drive wheel that rolls on the surface to be cleaned, and is disposed at a position in contact with the surface to be cleaned and the dust invitation surface portion in front of the side opening. A rotating brush that rotates along with the movement of the cleaning head scoops up dust on the surface to be cleaned, and collects the dust from the dust invitation surface to the side opening, and eventually to the dust container.

  Further, Patent Document 2 is a rotary roller type cleaner having an elastic roller having a small-diameter regulating ring on both side surfaces and a dust guide plate disposed along the circular curved surface axial direction of the elastic roller, A technique is disclosed in which dust on a cleaning surface is captured while being rotated by pressing an elastic roller, sent to the dust guide plate, and stored in a dust storage box while being slid and pressed on the dust guide plate as it is. A sponge roller is exemplified as the roller.

Patent 3641618 Shoko Sho 55-23481

The cleaning tool described in Patent Document 1 has the following problems.
(1) Rotating brushes scrape grain dust (rice, confectionery waste, dirt dust, sand, etc.), hair and cotton dust on the surface to be cleaned. May not be put on the side of the department. When many bristles and cotton dust are entangled with the rotating brush, the bristles and cotton dust are reattached to the surface to be cleaned and the surface to be cleaned is soiled.

  (2) The rotating brush cannot block the side opening due to the existence of a gap between the flocks. When the cleaning head is lifted from the surface to be cleaned or turned upside down, the granular dust collected in the dust container exits from the side opening and is scattered to the surroundings.

  (3) The rotating brush is fixed on the same axis of the drive wheels on both sides. Therefore, the cleaning range of the rotating brush that occupies the entire width of the cleaning head is narrow. Moreover, the range of the wheel width from the side of the wall is a range that cannot be cleaned.

The cleaning tool described in Patent Document 2 has the following problems.
(1) When a sponge roller is used as the elastic roller, dust and dirt on the surface to be cleaned enter the hole on the sponge surface from the beginning of use, and it is difficult to store the dust in the dust container. Also, the sponge roller was immediately soiled or clogged, resulting in a very short life.

  (2) When a non-foamed normal rubber roller was used as the elastic roller, it was difficult to obtain the softness necessary for catching dust on the roller as compared with the sponge roller.

  An object of the present invention is to stably collect dust on a surface to be cleaned over a wide range of the surface to be cleaned.

Invention includes a side opening of the front and rear cleaning head, have a cleaning roller before and after closing them each side opening of, Along the lower ends of the side opening, the side surface from the surface to be cleaned according to claim 1 Each dust invitation surface portion that guides dust to the opening is provided, and each front and rear cleaning roll is provided with a cavity in the portion excluding the surface of the elastic roll made of nonporous material, and each side opening The cleaning head crushes the front and rear cleaning rolls with the surface to be cleaned by its own weight, and the lower surface of the cleaning head is used as the surface to be cleaned. The front cleaning roll rotates when the cleaning head moves forward, and the rear cleaning roll rotates while pressing the dust between the cleaning head and the cleaning head. each side of the dust from the dust invitation surface It is obtained by the capture to the opening.

  According to the present invention, by using a cleaning roll having a hollow portion in a portion excluding the surface of an elastic roll made of a nonporous material, dust on the surface to be cleaned is spread over a wide range of the surface to be cleaned. It can be collected stably.

FIG. 1 is a perspective view showing a cleaning tool. FIG. 2 is a perspective view taken along line II-II in FIG. 3 is a cross-sectional view taken along line II-II in FIG. FIG. 4 is a cross-sectional view including a joint portion of the cleaning tool. FIG. 5 is a cross-sectional view across the crosspiece of the lower frame of the cleaning head. FIG. 6 shows a cleaning roll, (A) is a front view, and (B) is a cross-sectional view. FIG. 7 is a perspective view of the cleaning head viewed from the lower surface side. FIG. 8 is a schematic diagram showing a dust container, a dust invitation surface, and a cleaning roll. FIG. 9 is a perspective view showing another example of the cleaning tool. FIG. 10 is a perspective view of the cleaning head of the cleaning tool of FIG. 9 as viewed from the lower surface side. FIG. 11 is a schematic diagram illustrating a dust container, a dust invitation surface portion, and a cleaning roll of the cleaning tool of FIG. 9. FIG. 12 is a schematic diagram showing a dust container, a dust invitation surface, and a cleaning roll of the cleaning tool of FIG. FIG. 13 shows another example of the cleaning roll, (A) is a front view, (B) is a longitudinal sectional view, and (C) is an enlarged transverse sectional view. FIG. 14 shows another example of the cleaning roll, in which (A) is a front view, (B) is a longitudinal sectional view, and (C) is an enlarged transverse sectional view. FIG. 15 is a cross-sectional view showing another example of the cleaning roll. FIG. 16 is a cross-sectional view showing another example of the cleaning roll. FIG. 17 is a cross-sectional view showing another example of the cleaning roll.

  The cleaning tool 10 shown in FIGS. 1 to 4 has flooring, carpet floor, etc. as the surface to be cleaned, and removes dust particles (rice, confectionery waste, earth dust, sand, etc.), hair, and cotton dust on the surface to be cleaned. Collect. The cleaning tool 10 has a dust container 40 in a cleaning head 30 provided at the tip of the handle 20, front and rear side openings 41 (41 F, 41 R) provided in front and rear of the dust container 40, and those It has cleaning rolls 50 (50F, 50R) before and after closing the side opening 41.

  In the cleaning tool 10 of the present embodiment, the cleaning roll 50 is rolled on the surface to be cleaned by the operating force applied to the handle 20, and the direction in which the cleaning head 30 advances by the pressing operation force applied to the handle 20 is forward (see FIG. 3), and the direction in which the cleaning head 30 advances by the pulling operation force applied to the handle 20 is the rear direction (the R direction in FIG. 3).

  The handle | steering-wheel 20 is an elongate body about 1 m long which connected the several rod-shaped body 21 in order, as shown in FIGS. 1-3, and is provided with a grip at the base end. The connecting plate 24 of the joint 23 is inserted into the slit of the tip end bifurcated portion 22 of the handle 20, and the connecting plate 24 is pinned to a bush 26 that is inserted into the bifurcated portion 22 and fixed to the bifurcated portion 22 with a screw 25. Are connected. Further, the joint 23 is provided at the left and right support portions provided at the center in the front-rear direction (the direction in which the cleaning roll 50 advances by movement) and the left-right direction (the axial direction of the cleaning roll 50) of the upper frame 31U of the cleaning head 30. The pin 27 is inserted between the pins 32 and 32 and is fixed to the pin 27 fixed to the support portion 32. The pin 27 extends in the left-right direction of the cleaning head 30, and the bush 26 is disposed orthogonally to the pin 27. Thus, the user can swing the handle 20 left and right around the bush 26 and swing the handle 20 back and forth around the pin 27.

  As shown in FIG. 4, the handle 20 is loaded with a coil spring 28 in the center hole of the rod-like body 21 at the tip, and an arc provided with a slider 28 </ b> A that is springed by the coil spring 28 on the connecting plate 24 of the joint 23. The handle 20 is pressed against the surface 24 </ b> A (a circular arc surface centered on the bush 26) to brake the rocking of the handle 20 around the bush 26. Further, a coil spring 29 is loaded in a central hole provided in a boss 34 (described later) of the upper frame 31U of the cleaning head 30 and opened on the upper surface, and a slider 29A that is elastically moved by the coil spring 29 is provided in the joint 23. The handle 20 is pressed against the arc surface 23 </ b> A (the arc surface centered on the pin 27) to brake the rocking of the handle 20 around the pin 27. As a result, the user grasps the handle 20 and lifts the entire cleaning tool 10 from the surface to be cleaned, and moves the entire cleaning tool 10 in its original posture without changing the relative angular posture of the handle 20 and the cleaning head 30. Can be posted.

  As shown in FIGS. 2 to 4, the cleaning head 30 includes a combined body of an upper frame 31U and a lower frame 31L.

  The upper frame 31U extends across the entire area of the cleaning head 30 in the front-rear and left-right directions, and arc-shaped cover portions provided at both ends in the front-rear direction cover substantially the upper half circumference of the front and rear cleaning rolls 50. The upper frame 31U includes a central rib 33 that is suspended from the front-rear center of the lower surface, extending in the left-right direction across the left and right side walls of the upper frame 31U. A boss 34 loaded with the above-described coil spring 29 protrudes downward from a central portion in the left-right direction of the central rib 33 on the lower surface of the upper frame 31U.

  The lower frame 31L has a frame shape that is fitted between the left and right side walls of the upper frame 31U. As shown in FIG. 7, the lower surface of the rectangular outer peripheral frame 35 is a horizontal plane that can be in sliding contact with the surface to be cleaned. A square stepped portion 36 into which a bottom plate 43 (a cleaning sheet 44 described later) can be fitted is provided inside the lower surface of the frame 35. The stepped portion 36 forms a square opening to which the bottom plate 43 can be attached and detached, and includes a stepped surface 36 </ b> A that forms a stepped depth corresponding to the thickness of the bottom plate 43. The lower surface of the bottom plate 43 fitted to the stepped portion 36 of the lower frame 31L is flush with the lower surface of the outer peripheral frame 35 and can come into sliding contact with the surface to be cleaned.

  The lower frame 31L includes a central rib 37 in the surface of the step surface 36A provided in the step portion 36 in the outer peripheral frame 35. The central rib 37 is erected at the central portion in the front-rear direction in the outer peripheral frame 35 and extends across the entire region in the left-right direction intersecting the left and right step portions 36 of the outer peripheral frame 35. The lower surface of the central rib 37 is flush with the step surface 36A of the step portion 36.

  The lower frame 31L includes a plurality of parallel bars 38 between the step portion 36 and the central rib 37 on the front end side and the rear end side of the outer peripheral frame 35. The lower surface of the crosspiece 38 is flush with the stepped surface 36 </ b> A of the stepped portion 36 and the lower surface of the central rib 37. The upper surface of the crosspiece 38 forms a downwardly curved curved inclined surface 38 </ b> A extending from the upper part of the central rib 37 to the upper part of the outer peripheral frame 35. As shown in FIG. 5, the cross section of the crosspiece 38 has a narrow triangular cross section so that the cleaning roll 50 can easily drop dust to be thrown down as described later.

  The lower frame 31L has screws 39 inserted from a plurality of positions on the lower surface of the central rib 37 in a state where the upper end concave portion 37A of the central rib 37 is fitted to the lower end convex portion 33A of the central rib 33 of the upper frame 31U. By being screwed to the lower surface mounting portion, the upper frame 31U is coupled.

  Accordingly, the cleaning head 30 is configured such that the upper frame 31U and the lower frame 31L are coupled, and the bottom plate 43 is fitted to the stepped portion 36 on the lower surface of the lower frame 31L, so that the dust is disposed between the upper frame 31U and the lower frame 31L. The accommodating part 40 is formed. The dust container 40 is divided in the front-rear direction by the center rib 33 of the upper frame 31U and the center rib 37 of the lower frame 31L at the center in the front-rear direction of the cleaning head 30. The cleaning head 30 has front and rear dust storage portions 40F, 40R, the front dust storage portion 40F includes a side opening 41F that opens to the front, and the rear dust storage portion 40R opens to the rear. An opening 41R is provided.

  The cleaning tool 10 is a dust invitation surface portion that guides dust from the surface to be cleaned to the side surface opening 41 along the lower end of the side surface opening 41 (41F, 41R) provided in the dust container 40 (40F, 40R) of the cleaning head 30. 42 is provided. The outer surfaces of the front and rear outer peripheral frames 35 of the lower frame 31L of the cleaning tool 30 are in sliding contact with the outer periphery of the cleaning roll 50 over the entire length of the cleaning roll 50, or a small gap is provided on the outer periphery of the cleaning roll 50. The arc-shaped dust invitation surface portion 42 is formed. The lower edge 42A of the dust invitation surface portion 42 that intersects the lower surface of the outer peripheral frame 35 at an acute angle is in close contact with the surface to be cleaned when the cleaning tool 10 is moved, and rubs the dust on the surface to be cleaned. Scoop up on 42. The upper end edge 42B of the dust invitation surface portion 42 also forms an acute angle, and when the cleaning roll 50 rotates toward the upper end edge 42B (for example, when the cleaning tool 10 moves forward (direction F in FIG. 3), the cleaning tool 10 around the cleaning roll 50R in FIG. 3 positioned behind (the R direction in FIG. 3), the dust in the dust container 40 (40R) is less likely to enter the pressing roll 50 (50R) from the upper edge 42B. (Fig. 3).

  At this time, the bottom of the dust container 40 (40F, 40R) is sealed by the bottom plate 43 fitted to the stepped portion 36 of the outer peripheral frame 35 of the lower frame 31L. The bottom plate 43 can be constituted by a cleaning sheet 44 as shown in FIG. The cleaning sheet 44 includes a sheet-like wiping material 44B made of non-woven fabric or the like bonded to the lower surface of a shape-keeping layer 44A made of cardboard or the like, and a sheet-like adhesive material 44C in which an adhesive is applied to the upper surface of the shape-keeping layer 44A. Is provided. A stepped surface 36A that is flush with the stepped portion 36 of the outer peripheral frame 35, a central rib 37, and a lower surface of the crosspiece 38 are provided with an easy-peeling coat such as a Teflon (registered trademark) coat. The sticky adhesive material 44C is easily attached. Thereby, the cleaning sheet 44 is formed on the stepped portion 36 of the outer peripheral frame 35 so that the lower surface of the sheet-like wiping material 44B is flush with the lower surface of the outer peripheral frame 35 of the lower frame 31L that is in contact with the surface to be cleaned of the cleaning head 30. It will be detachable. At the time of cleaning with the cleaning tool 10, fine dust such as dirt on the surface to be cleaned that has passed through the lower edge 42A of the dust invitation surface portion 42 is wiped off with the sheet-like wiping material 44B. Further, the dust put between the cleaning roll 50 and the dust invitation surface portion 42 and introduced into the dust storage portion 40 from the side opening 41 is held by the sheet-like adhesive material 44C.

  The cleaning tool 10 pivotally supports both ends of the front and rear cleaning rolls 50 (50F, 50R) on the front and rear sides of the left and right side walls of the cleaning head 30 (upper frame 31U). As shown in FIG. 6, the cleaning roll 50 includes a hollow portion 53 in a portion excluding the surface of the hollow cylindrical body 52 that becomes an elastic roll 51 made of a nonporous material such as rubber. The shaft tube 54 made of metal such as hard plastic or aluminum pipe is attached to the entire circumference and the entire length of the circumference. The elastic roll 51 of the present embodiment is formed of a hollow cylindrical body 52 such as rubber, and the shaft of the cylindrical body 52 is provided at each of a plurality of locations (e.g., 8 locations) along the circumferential direction of the inner periphery of the cylindrical body 52. A groove-like cavity 53 extending from one end of the direction to the entire length of the other end is provided. In this specification, the hollow portion (the groove-like hollow portion 53 in this embodiment) refers to a hollow portion that does not include a hole portion into which the shaft tube 54 is inserted. The cleaning roll 50 is provided with a cavity 53 in a portion excluding the surface of the cylindrical body 52 that becomes the elastic roll 51 (internal portion of the cylindrical body 52), thereby providing a hole into which dust or dirt enters the surface of the elastic roll 51. It does not occur, and has the necessary softness to bite and capture dust on the surface of the elastic roll 51. A modification of the form of the elastic roll 51 and the material of the elastic roll 51 will be described later. The groove-like cavity 53 does not have to extend over the entire length from one end of the cylindrical body 52 in the axial direction to the other end, and may be appropriately divided.

  The cleaning roll 50 closes the side opening 41 of the dust container 40 and is rotatably arranged at a position where it comes into contact with the surface to be cleaned. The cleaning roll 50 is rotatably arranged at a position that preferably contacts the dust invitation surface portion 42. In addition, as shown in FIG. 8, the particle dust etc. on the to-be-cleaned surface which dig into the surface of the elastic roll 51 in the cleaning roll 50 are guided to the dust invitation surface portion 42 by the rotation of the cleaning roll 50, and further on the dust invitation surface portion 42. If the elastic roll 51 can be put into the dust container 40 from the side opening 41 by the elastic force of the elastic roll 51, the cleaning roll 50 rotates with the dust invitation surface part 42 through a certain minute gap. It may be arranged as possible. The amount of the minute gap can be appropriately set depending on the size of the collected dust. Further, the cleaning roll 50 has a cap 55 that is inserted into and fixed to both ends of the cylindrical body 52 of the elastic roll 51. A support shaft 56 screwed and fixed to the left and right side walls of the upper frame 31U of the cleaning head 30 is passed through the center hole of the cap 55 to pivotally support the cleaning roll 50 on the cleaning head 30.

  The cleaning roll 50 can be made of a plurality of roll materials having different hardnesses in the axial direction of the elastic roll 51. When a roll material that is harder than the main roll material is provided at two positions on both ends of the elastic roll 51, the pressing force of the elastic roll 51 on the surface to be cleaned is increased, and the gripping force of the cleaning roll 50 against the surface to be cleaned, and consequently friction. It will improve the rotational force.

  The cleaning tool 10 is preferably placed in a free state on the surface to be cleaned, and the cleaning head 30 crushes the elastic roll 51 of the cleaning roll 50 with the surface to be cleaned by its own weight including the handle 20, thereby cleaning the head 30. The lower surface (the lower surface of the outer peripheral frame 35 of the lower frame 31L) is brought into contact with the surface to be cleaned. This is set by the balance between the weight of the cleaning head 30 including the handle 20 and the repulsive force of the elastic roll 51. At this time, the lower surface of the cleaning head 30 (the lower surface of the outer peripheral frame 35 of the lower frame 31L) and the lower edge 42A of the dust invitation surface portion 42 determined by the lower surface of the outer peripheral frame 35 are set on the same horizontal plane. Note that the lower surface of the cleaning head 30 (the lower surface of the outer peripheral frame 35 of the lower frame 31L) is preferably subjected to Teflon (registered trademark) treatment or the like so as to make it easy to slide on the surface to be cleaned.

  Therefore, according to the cleaning tool 10, a cleaning operation is performed as follows. When the user moves the cleaning head 30 forward by the handle 20 (direction F in FIG. 3), the front cleaning roll 50F performs a cleaning operation while rolling in close contact with the surface to be cleaned. Is moved backward (in the R direction in FIG. 3), the cleaning roller 50R on the rear side is in close contact with the surface to be cleaned and performs a cleaning operation while rolling. By providing the cleaning roll 50, the dust invitation surface portion 42, and the cleaning sheet 44 (wiping material 44B) over the entire possible width of the upper and lower frames 31U and 31L of the cleaning head 30, the surface to be cleaned can be cleaned up to the wall.

  (a) As shown in FIG. 8, the cleaning roll 50 deforms the elastic roll 51 so as to bite grain dust etc. on the surface to be cleaned, and cleans it while holding down the bitten dust etc. on the surface to be cleaned. It rolls on the surface and carries the dust particles to the dust invitation surface 42 side. Grain dust or the like that has sunk into the elastic roll 51 of the cleaning roll 50 is drawn into the dust invitation surface portion 42, and is further squeezed and slid up on the dust invitation surface portion 42. The dust is put into the dust container 40 through the opening 41. In FIG. 8, for convenience of explanation, the cleaning roll 50 and the dust invitation surface portion 42 are depicted as having a certain minute gap between them. However, as described above, the cleaning roll 50 and the dust invitation surface portion 42 are separated from each other. You may make it contact.

  (b) The cleaning roll 50 is elastic after the hair, cotton dust, and the like scooped up by the lower edge 42A of the dust invitation surface portion 42 are drawn into the dust invitation surface portion 42 and further squeezed and slid up on the dust invitation surface portion 42. The elastic force of the roll 51 puts it into the dust container 40 from the side opening 41.

  (c) Since the cleaning roll 50 is formed of the elastic roll 51 with an inorganic material such as rubber, the surface of the cleaning roll 50 does not have a hole for dirt particles such as soil to enter, and the roll surface can be made difficult to get dirty. The frequency can be reduced. Further, when the cleaning roll 50 captures hair and cotton dust on the roll surface, the cleaning roll 50 can be charged into the dust container 40 from the side opening 41 without electrostatic adhesion.

  (d) The cleaning roll 50 closes the side opening 41 of the dust container 40. When the cleaning tool 10 is lifted from the surface to be cleaned or turned upside down, the granular dust collected in the dust container 40 does not come out of the side opening 41 and dissipate to the surroundings.

  (e) The cleaning roll 50 rotates while rolling on the surface to be cleaned by itself, and does not involve driving wheels on both ends. Therefore, the cleaning range by the cleaning roll 50 that occupies the entire width of the cleaning tool 10 is wide. Moreover, the cleaning roll 50 can enter near the wall, and hardly produces an area that cannot be cleaned near the wall.

  (f) A sheet-like wiping material 44B is provided on the lower surface of the cleaning head 30 that contacts the surface to be cleaned. Fine dust such as dirt dust on the surface to be cleaned is wiped off by the wiping material 44B on the lower surface of the cleaning head 30 even if it passes through the gap between the lower edge 42A of the dust invitation surface 42 and the surface to be cleaned.

  (g) The cleaning head 30 has a dust container 40 having a side opening 41, and a sheet-like adhesive material 44 </ b> C is provided on the bottom surface of the dust container 40. Grain dust, hair, cotton dust and the like already taken into the bottom surface of the dust container 40 are held by the adhesive material 44C. The dust is held against the inertial force accompanying the movement of the cleaning tool 10. For example, rotation of the rear cleaning roll 50R provided in the direction opposite to the traveling direction of the cleaning tool 10 prevents the dust from being dragged out from the rear side opening 41R.

  (h) A cleaning sheet 44 is detachably provided on the lower surface of the cleaning head 30 that is in contact with the surface to be cleaned. The cleaning sheet 44 includes a sheet-like wiping material 44B on one surface and a sheet-like adhesive material 44C on the other surface. By adhering one cleaning sheet 44 to the lower surface of the cleaning head 30, the wiping material 44B and the adhesive material 44C described above can be provided. The dust collected in the dust container 40 can be disposed of while being held on the adhesive material 44 </ b> C of the cleaning sheet 44 by peeling the cleaning sheet 44 from the lower surface of the cleaning head 30.

  (i) Since the elastic roll 51 is provided with the hollow portion 53 in the portion excluding the surface of the cylindrical body 52, the softness necessary for biting the granular dust can be provided.

  (j) When the elastic roll 51 is too soft, the trapping property by the bite of the particle dust is good, but the repulsive force against the surface to be cleaned such as flooring is small and the frictional rotational force necessary for the rotation of the cleaning roll 50 cannot be obtained. There is. Therefore, by providing a hard roll material at, for example, two places on both ends of the elastic roll 51, the roll material generates a large repulsive force against the surface to be cleaned, and the cleaning roll 50 can stably roll on the surface to be cleaned. .

  (k) The cleaning head 30 crushes the elastic roll 51 with the surface to be cleaned by its own weight, and the lower surface of the cleaning head 30 is brought into contact with the surface to be cleaned.

  When the user holding the handle 20 of the cleaning tool 10 moves the cleaning head 30 backward while retreating, the cleaning head 30 is not affected by its own weight even if the user's operation force lifts the cleaning head 30 from the surface to be cleaned. Thus, the elastic roll 51 is not crushed and the lower surface of the cleaning head 30 is not brought into contact with the surface to be cleaned and floated. Thereby, even when the cleaning head 30 moves backward, it can be stably cleaned.

  When the user holding the handle 20 of the cleaning tool 10 swings the cleaning head 30 around it (reciprocating left and right revolving around the user), the user's operating force causes the cleaning head 30 to move. Even if the cleaning head 30 is not pressed against the surface to be cleaned, the cleaning head 30 does not crush the elastic roll 51 with its own weight, and the lower surface of the cleaning head 30 does not come into contact with the surface to be cleaned and does not float. Thereby, it can clean stably also at the time of the swing movement of the cleaning head 30. FIG.

  Regardless of whether the operation force of the user pressing the cleaning head 30 against the surface to be cleaned is weak or strong, the elastic roll 51 is applied with a constant crushing amount δ (FIG. 3) (for example, 1 mm) and the surface to be cleaned. Rolls up and stably captures dust on the surface to be cleaned.

  (l) In the above (k), the lower surface of the cleaning head 30 and the lower end edge 42A of the dust invitation surface portion 42 are set on the same horizontal plane. Therefore, when the lower surface of the cleaning head 30 is moved in sliding contact with the surface to be cleaned, the lower edge 42A of the dust invitation surface portion 42 always slips on the surface to be cleaned, so that the dust particles that have digged into the cleaning roll 50 are collected as dust. It is possible to stably invite the attracting surface portion 42, or hair, cotton dust and the like on the surface to be cleaned can be stably attracted to the dust attracting surface portion 42.

  The cleaning tool 10 shown in FIGS. 9 and 10 is a modification of the cleaning tool 10 shown in FIGS. 1 to 8, and the strip 60 having one or more elongated strips is spirally formed on the surface of the cleaning roll 50. It is wound in the shape and fixed to the surface of the cleaning roll 50 with an adhesive or the like as appropriate. As the cross section of the strip 60, as shown in FIGS. 11 and 12, a square cross section or a triangular cross section can be adopted.

  In the cleaning tool 10, it is preferable that the cleaning roll 50 does not contact the dust invitation surface portion 42 and the strip 60 contacts the dust invitation surface portion 42. That is, a minute gap is provided between the outer periphery of the cleaning roll 50 and the dust invitation surface portion 42 so that the rotation of the cleaning roll 50 is made smooth, and the surface of the strip 60 is disposed at a position where it contacts the outer periphery of the dust invitation surface portion 42. Thus, dust having a size smaller than the minute gap is also sandwiched between the strip 60 and the dust invitation surface portion 42 to collect the dust and improve the dust collection efficiency. FIG. 11 shows a state in which dust is sandwiched between the top surface of the square cross-section strip 60 and the dust invitation surface portion 42 and the front surface of the strip 60 scrapes up dust. FIG. 12 shows a state where the front surface of the triangular cross-section strip 60 scoops up dust.

  In the cleaning tool 10, the dust pinching mechanism between the strip 60 and the dust invitation surface portion 42 is a mechanism that mainly uses the elastic deformation of the elastic roll 51. For example, the strip 60 is disposed on the surface of a metal cylinder. However, even if the strip 60 bounces off the dust, it does not easily become a sandwiching mechanism with the dust invitation surface portion 42.

  In the cleaning tool 10, the strip 60 provided on the surface of the cleaning roll 50 is formed in a spiral shape, so that the longitudinal direction of the same strip 60 during the rotation of the cleaning roll 50 is longer than that in which the strip 60 is straight. These parts do not come into contact with the dust invitation surface portion 42 at a time, but in contact with the dust invitation surface portion 42 in order, and the rotational resistance of the cleaning roll 50 due to the sliding contact is reduced, reducing the operating force. In addition, the rolling property of the cleaning roll 50 on the cleaning surface is smooth and quiet. By setting the winding angle and the number of winding strips of the strip 60 wound around the surface of the cleaning roll 50, the strip 60 on the cleaning roll 50 is surely positioned on the cleaning surface at a plurality of positions in the axial direction of the cleaning roll 50; Thus, it is preferable to make the rolling of the cleaning roll 50 smooth and the like.

  The strip 60 is preferably an elastic body, and a material used in a cleaning roll 50 described later can be appropriately used. When the material of the strip 60 and the cleaning roll 50 is the same, the strip 60 is replaced with a method such as cutting or molding instead of a method of fixing the strip 60 to the outer peripheral surface of the cleaning roll 50 with an adhesive or the like. And the cleaning roll 50 can be integrated.

Hereinafter, the modification of the form of the elastic roll 51 and the material of the elastic roll 51 are demonstrated.
(Form of cleaning roll 51)
As long as the cavity 53 provided in the elastic roll 51 can be formed in a portion excluding the surface of the elastic roll 51, it is not limited to the above-described groove-shaped cavity on the inner periphery of the cylindrical body 52, and can be appropriately adopted.

  The hollow portion 53 provided in the elastic roll 51 shown in FIG. 13 has round holes 71 </ b> A and the circumferential direction of the cylindrical body 52 at a plurality of locations along the circumferential direction in the annular thick portion of the cylindrical body 52 that becomes the elastic roll 51. The long long holes 71B are alternately arranged along the line. At this time, each round hole 71A and each long hole 71B are extended in a penetrating manner from the axial end of the cylindrical body 52 to the entire length of the other end. It should be noted that the axial direction of the elastic roll and the penetration direction of the hollow portion may or may not be parallel. For example, the hollow portion may be provided in a spiral shape in the axial direction.

  The hollow portion 53 provided in the elastic roll 51 shown in FIG. 14 has a circular hole 71A and a long hole 71B similar to those shown in FIG. It extends in a penetrating manner.

  The hollow 53 provided in the elastic roll 51 shown in FIG. 15 is obtained by replacing the round hole 71 </ b> A and the long hole 71 </ b> B shown in FIG. 13 or 14 with a round hole 72.

  A hollow portion 53 provided in the elastic roll 51 shown in FIG. 16 is obtained by replacing the round hole 71A and the long hole 71B shown in FIG. The four corners of the square hole 73 are rounded. In addition to the square holes, various polygonal holes can be employed.

  The hollow 53 provided in the elastic roll 51 shown in FIG. 17 is obtained by replacing the round hole 71A and the long hole 71B shown in FIG.

  In addition to the round hole, an elliptical hole or a track-shaped track circular hole in an athletics stadium (herein referred to as a circular hole as a general term for a round hole, an elliptical hole, or a track circular hole) is adopted as the hollow portion. be able to.

  In addition, a single hole or a combination of two or more of circular holes, polygonal holes, and long holes can be employed in the hollow portion of one elastic roll.

(Material of elastic roll 51)
The elastic roll 51 can be appropriately used as long as it can be used as a non-porous roll. For example, it is possible to use a machine tool in which a large number of regular or irregular cavities are formed in a wall thickness excluding the surface of a nonporous rubber roll. Moreover, when manufacturing an elastic roll by shaping | molding, a cavity part can be provided by using a core. Here, the nonporous material in this specification refers to a material other than a foamed structure material such as sponge and a porous material.

  Nonporous roll materials include natural rubber, synthetic rubber, elastomer materials such as thermoplastic elastomers, gels, and the like. As the natural rubber roll, one obtained by crosslinking sap obtained from rubber tree can be used. As the synthetic rubber roll, acrylic rubber, nitrile rubber, isoprene rubber, urethane rubber, chloroprene rubber, silicone rubber, butadiene rubber, or synthetic rubber obtained by introducing a polyether structure or a polyester structure into a known polymer material is used. Can do. As the thermoplastic elastomer roll, a known thermoplastic elastomer such as urethane, styrene, or olefin can be used. A silicone gel etc. can be used as a gel roll.

  The elastic roll 51 may be configured in combination with these materials or other materials. Examples of composite modes include lamination and mixing. In mixing, the melted material may be mixed, or one of the finely divided materials may be dispersed in the other material. As other materials, known polymer materials are suitable.

  According to the present invention, by using a cleaning roll having a hollow portion in a portion excluding the surface of an elastic roll made of a nonporous material, dust on the surface to be cleaned is spread over a wide range of the surface to be cleaned. It can be collected stably.

DESCRIPTION OF SYMBOLS 10 Cleaning tool 30 Cleaning head 40 Dust accommodating part 41 Side opening part 42 Dust invitation surface part 42A Lower edge 42B Upper edge 44 Cleaning sheet 44B Sheet-like wiping material 44C Sheet-like adhesive material 50 Cleaning roll 51 Elastic roll 52 Hollow cylindrical body 53 Cavity Part 60 Strip

Claims (9)

A side opening of the front and rear cleaning head, the front and rear cleaning roller to close them each side opening of possess,
Along the lower ends of the side opening, the dust invitation surface for guiding the dust into the side opening from the surface to be cleaned is provided,
Each of the front and rear cleaning rolls is provided with a cavity in the portion excluding the surface of the elastic roll made of a nonporous material, closes each side opening, and can be rotated to a position in contact with the surface to be cleaned. Arranged ,
The cleaning head crushes the front and rear cleaning rolls with the surface to be cleaned by its own weight, and brings the lower surface of the cleaning head into contact with the surface to be cleaned.
Moving and sometimes front cleaning roller forward of the cleaning head, the cleaning roll after the time the backward movement of the cleaning head side, respectively rotates while pressing the dust between the surface to be cleaned, the dust invite the trash Cleaning tool to be taken into each side opening from the surface.   The cleaning tool according to claim 1, wherein the cavity is a groove-like cavity.   The cleaning tool according to claim 1, wherein the hollow portion is formed by combining one type or two or more types of circular holes, polygonal holes, and long holes.   The cleaning tool of any one of Claims 1-3 in which a sheet-like wiping material is provided in the lower surface which touches the to-be-cleaned surface of the said cleaning head.   The cleaning tool according to any one of claims 1 to 4, wherein the cleaning head includes a dust container having a side opening, and a sheet-like adhesive material is provided on a bottom surface of the dust container.   The cleaning according to claim 5, wherein a cleaning sheet is detachably provided on a lower surface that can come into contact with a surface to be cleaned of the cleaning head, a sheet-like wiping material is provided on one surface of the cleaning sheet, and a sheet-like adhesive material is provided on the other surface. Ingredients. Cleaning tool according to any one of claims 1 to 6, and the lower end edge of the lower surface and dust invitation surface of the cleaning head is set on the same horizontal plane. The cleaning tool according to any one of claims 1 to 7 , wherein a spiral strip is provided on a surface of the front and rear cleaning rolls. The cleaning tool according to claim 8 , wherein the front and rear cleaning rolls do not contact the dust invitation surface portion, and the strip contacts the dust invitation surface portion.

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