JP6261243B2 - Cleaning tool - Google Patents

Description

  The present invention relates to a cleaning tool, and more particularly to a cleaning tool including a pair of cleaning heads to which a cleaning member is attached, a pivot portion, and a handle portion.

  For example, a cleaning tool such as a handy mop that uses a disposable cleaning sheet made of nonwoven fabric or the like, or a cleaning member such as a cleaning cloth or a mop, which is detachably attached to a synthetic resin cleaning head, is known (for example, , See Patent Document 1 and Patent Document 2). According to these cleaning tools, it is possible to easily and easily perform cleaning at home, for example, while discarding a cleaning sheet, a mop, or the like and reusing it after washing.

  In addition, the cleaning width by the cleaning head is set to a maximum width obtained by expanding the pair of cleaning heads 180 degrees to the left and right, and the pair of cleaning heads are closed so that the cleaning tool can handle both a wide range and a narrow range. A cleaning tool has also been developed that can be switched to the minimum width so that the cleaning operation can be performed efficiently (see, for example, Patent Document 3).

JP 2003-265390 A JP 2010-268975 A JP 11-47059 A

  However, according to the cleaning tool described in Patent Document 3, in the minimum width state in which the pair of cleaning heads are closed, the minimum width is obtained by abutting the contact portions on the inner side of each cleaning head. The width of the pair of cleaning heads is a total width and is not so narrow. For this reason, it is difficult to effectively perform the cleaning work for the narrow width cleaning portion.

  Moreover, in the cleaning tool described in Patent Document 3, it is difficult to perform a cleaning operation such as sandwiching a blind and simultaneously cleaning the front and back of the blind.

  The present invention allows the cleaning width by the cleaning head to be switched between the maximum width and the minimum width, can efficiently perform the cleaning work, and can also effectively perform the cleaning work for a narrow width cleaning place, Furthermore, it aims at providing the cleaning tool which can perform the cleaning operation | work which inserts a blind and cleans the front and back of this simultaneously easily, for example.

  The present invention is a cleaning tool comprising a pair of cleaning heads to which a cleaning member is attached, a pivot part that rotatably supports the base end part of the pair of cleaning heads, and a handle part connected to the pivot part. The pivot portion is configured to switch the pair of cleaning heads between a closed state in which the pair of cleaning heads are vertically overlapped and an open state in which the pair of cleaning heads are opened to the left and right, and supports the base end portion. By providing the above, the above object is achieved.

  According to the cleaning tool of the present invention, the cleaning width by the cleaning head can be switched between the maximum width and the minimum width, so that the cleaning work can be efficiently performed, and the cleaning work can be effectively performed even for a narrow cleaning portion. Further, for example, it is possible to easily perform a cleaning operation such as sandwiching a blind and simultaneously cleaning the front and back of the blind.

BRIEF DESCRIPTION OF THE DRAWINGS The cleaning tool which concerns on preferable one Embodiment of this invention is demonstrated, (a) is a perspective view of the state which shrunk the handle | pattern part, (b) is a perspective view of the state which extended the handle | pattern part. The cleaning tool which concerns on preferable one Embodiment of this invention is shown by abbreviate | omitting a cleaning member and a handle | pattern part, (a) is a perspective view of a closed state, (b) is a perspective view of an open state. The cleaning tool which concerns on preferable one Embodiment of this invention is abbreviate | omitting a cleaning member and a handle | pattern part, (a) is a side view of a closed state, (b) is a side view of an open state. (A) of the cleaning head connected with the rotating shaft part is a perspective view, (b) is a side view. (A) of the cleaning head connected with the rotating shaft part is a top view, and (b) is a bottom view. (A) of a pivot part shown except a rotating shaft part is a perspective view, (b) is a side view. (A) which illustrates a cleaning member is a perspective view, (b) is an exploded perspective view.

  A cleaning tool 10 according to a preferred embodiment of the present invention shown in FIG. 1 includes a pair of cleaning heads 11, a pivot portion 12, and an extendable handle portion 13, and the cleaning head 11 has a cleaning member 14. For example, a mop-shaped cleaning article provided with a fiber layer is mounted so as to be directly removable. The cleaning tool 10 of the present embodiment cleans a cleaning surface of a large area such as a floor surface, for example, with the handle 13 in an extended state (see FIG. 1B) and a pair of cleaning heads 11 opened. The use form suitable for the operation (see FIG. 2B) and, for example, the handle 13 is in a contracted state (see FIG. 1A) and the pair of cleaning heads 11 are closed, so that the width is narrow. A function is provided to enable efficient cleaning work while switching to a usage mode (see FIG. 2A) suitable for cleaning a cleaning portion.

  The cleaning tool 10 of this embodiment includes a pair of cleaning heads 11 to which a cleaning member 14 is attached, as shown in FIGS. 1 (a), 1 (b) and 2 (a), 2 (b). The pivot part 12 which rotatably supports the base end part 11a of the pair of cleaning heads 11 and the handle part 13 (see FIGS. 1A and 1B) connected to the pivot part 12 are included. The pivot portion 12 is in a closed state (see FIG. 2A) in which a pair of cleaning heads 11 are overlapped vertically (see FIG. 2A), and in an open state in which the pair of cleaning heads 11 are preferably opened approximately 180 degrees to the left and right (see FIG. 2B). The base end portion 11a of the cleaning head 11 is supported.

  In this embodiment, the pivot portion 12 has a bearing frame as shown in FIGS. 3A and 3B, FIGS. 4A and 4B, and FIGS. 6A and 6B. It comprises a part 15 and a pair of rotating shaft parts 16 that are rotatably supported by the bearing frame part 15 and that have a meshing uneven part 16a on the outer peripheral surface. The pivot portion 12 is connected to the pair of rotating shaft portions 16 with the base end portions 11 a of the pair of cleaning heads 11, the base end portion 11 a of the one cleaning head 11, and the other cleaning head 11. A pair of rotating shaft parts 16 are fitted to the bearing frame part 15 with the meshing uneven parts 16a meshing with each other in a state where the vertical position with respect to the base end part 11a is shifted (see FIGS. 3A and 3B). It has been. Thus, the pair of cleaning heads 11 are configured not to interfere with each other in the closed state, and are opened and closed in synchronization. In this embodiment, the up-down direction is the axial direction of the rotating shaft portion 16, and the upper direction and the lower direction can be interchanged. Further, the left-right direction is a direction orthogonal to the up-down direction, and is also a direction orthogonal to the axial direction of the rotating shaft portion 16.

  In the present embodiment, the cleaning head 11 constituting the cleaning tool 10 is a molded product made of a synthetic resin such as polypropylene or polyethylene, and is formed to have a length of about 100 to 200 mm as a whole, for example, Preferably, it is formed into a plate shape that can be bent and deformed when pressed moderately. 4 (a), 4 (b) and FIGS. 5 (a), 5 (b), the cleaning head 11 includes a plate-like main body portion 11b on which the cleaning member 14 is detachably mounted, and a rotating shaft portion. 16 and a base end portion 11 a on the end portion connected to the side 16.

  The plate-like main body portion 11b is a portion extending in a band plate shape from the base end portion 11a toward the distal end side of the cleaning head 11, and the bottom surface is a substantially flat surface and is edged in a band shape. It has a cross-sectional shape in which the thickness of the central portion is larger than that of the thin peripheral portion. Further, the plate-like main body portion 11b has a wide planar shape portion 11c having a width of, for example, about 29 mm in a substantially half region on the base end portion 11a side, and a substantially half region in the remaining side on the distal end side, for example, about 21 mm. A narrow planar shape portion 11d having a width has a planar shape that is continuous through a step portion 11e having a substantially quarter-circular shape. Further, on the substantially flat bottom surface of the plate-like main body portion 11b, as shown in FIG. 5 (b), a plurality of point-like ribs 11g having a low height are provided in a region approximately half the tip side of the narrow planar portion 11d. Is provided. By providing a plurality of dot-like ribs 11g on the bottom surface of the narrow planar portion 11d, when the cleaning member 14 described later is mounted on the cleaning head 11, the mounting sheets 14e and 14f of the cleaning member 14 are mounted. By being caught by the dotted ribs 11g, it is possible to effectively prevent the cleaning member 14 from being displaced or detached during use.

  Moreover, in this embodiment, as shown to FIG. 4 (a), (b), the state further raised rather than the thick part of the center part in the edge part by the side of the base end part 11a of the plate-shaped main-body part 11b. Thus, an arcuate mound-shaped engaging base portion 11h is formed. The engaging base 11h is provided with an engaging protrusion 11i to which an engaging cut 14h (see FIG. 7B) formed in the mounting sheets 14e and 14f of the cleaning member 14 is engaged. . And in this embodiment, it extends from the side part of the anchor base part 11h to the side and the upper part, and the base end part 11a is provided.

  In this embodiment, the base end portion 11a is a plate-like portion extending from one side portion of the engaging base portion 11h at the end portion of the plate-like main body portion 11b, and the base end portion 11h After projecting laterally from one side, on the rear side in the axial direction of the plate-like main body portion 11b, it is folded back to the center side in the width direction of the plate-like main body portion 11b, thereby forming an articulated pedestal portion 11j having a substantially circular arc shape doing. Further, by this, the base end portion 11a of the anchoring base portion 11h is between the connecting base portion 11j of the base end portion 11a and the rear end edge portion of the plate-like main body portion 11b by the anchoring base portion 11h. The spacing groove 11k cut into an arc shape is held from the side portion opposite to the protruding side portion. A rotating shaft portion 16 constituting the pivot portion 12 is integrally formed and connected to a portion of the connecting pedestal portion 11j of the base end portion 11a that is recessed rearward.

  The rotating shaft portion 16 connected to the connecting base portion 11j of the base end portion 11a of the cleaning head 11 is a member that constitutes the pivot portion 12 together with the bearing frame portion 15 and the like. As shown in FIGS. 4 (a) and 4 (b), the rotary shaft portion 16 has a substantially cylindrical shaft main body portion 16b having a meshing uneven portion 16a formed on the outer peripheral surface over an angle range of about 240 degrees, It comprises a bearing sleeve portion 16c provided so as to protrude upward from the top surface portion of the shaft main body portion 16b continuously with the central through hole of the shaft main body portion 16b. The cleaning head 11 is configured such that the engaging base portion 11h of the plate-like main body portion 11b is disposed upward, and the shaft main body portion is in a state where the flat bottom surface of the plate-like main body portion 11b is aligned with the bottom surface of the rotary shaft portion 16. The connecting base 11j is connected to the outer peripheral surface of the shaft body 16b in a height region not exceeding 1/2 of the height of the shaft body 16b from the bottom surface of the shaft 16b, so that the rotating shaft 16 is integrally provided. .

  In this embodiment, as shown in FIGS. 2A and 2B, a pair of cleaning heads 11 of the same size and shape provided integrally with the rotary shaft portion 16 as described above are turned upside down. Thus, with the flat bottom face facing outward, the bearing frame portion 15 of the pivot portion 12 is pivotably attached via a connecting pin 17 penetrating vertically.

  In this embodiment, as shown in FIGS. 6A and 6B, the bearing frame portion 15 includes a rear substrate portion 15a having a substantially rectangular (including square) front shape, and upper and lower portions of the rear substrate portion 15a. It has a U-shaped cross-sectional shape composed of a pair of upper and lower extended support plate portions 15b provided extending in parallel in a state of extending vertically forward from the edge portions. A pair of pin locking holes 18 are vertically opposed to each overhanging support plate portion 15b with an interval shorter than the diameter of the rotating shaft portion 16 by the amount of engagement of the engagement uneven portion 16a. It is provided in the position to do.

  A known connecting joint portion 19 is provided on the rear substrate portion 15a of the bearing frame portion 15 so as to protrude rearward. Via this connection joint part 19, the well-known handle | pattern part 13 which can be expanded-contracted is connected so that rotation up and down is possible (refer Fig.1 (a), (b)).

  And in this embodiment, the pivot part 12 is a closed state (refer FIG. 2 (a)) which piled up a pair of cleaning heads 11 up and down, and an open state (FIG. 2) opened to the right and left about 180 degree | times. The base end portion 11a of the cleaning head 11 is supported by a structure that can be switched to (see (b)).

  That is, in the present embodiment, a pair of rotating shaft portions 16 each integrally connecting the cleaning head 11 to the bearing frame portion 15 having a U-shaped cross section of the pivot portion 12 are turned upside down. In the state where the meshing concave and convex portions 16a of the pair of rotating shaft portions 16 are meshed with each other, the center through hole and the bearing sleeve portion 16c of each rotating shaft portion 16 are connected to the pair of upper and lower portions of the overhanging support plate portion 15b. Align with the pin locking hole 18. Further, the connecting pin 17 is continuously inserted into the center through hole and the bearing sleeve portion 16c, and the upper and lower pin locking holes 18, and both ends are locked to the pin locking holes 18, respectively. Accordingly, as shown in FIGS. 2A and 2B and FIGS. 3A and 3B, the vertical position of the base end portion 11a between the pair of cleaning heads 11 arranged upside down. Since the pair of rotating shaft portions 16 are attached to the bearing frame portion 15 in a state where they are shifted, it is possible to prevent the pair of cleaning heads 11 from interfering with each other in the closed state in which the pair of cleaning heads 11 are vertically stacked. Become. As a result, the pivot portion 12 is in a closed state (see FIG. 2 (a)) in which the pair of cleaning heads 11 are superposed on each other, and an open state in which the pair of cleaning heads 11 are opened approximately 180 degrees to the left and right (see FIG. 2 (b)). It becomes possible to support the base end part 11a of the cleaning head 11 by the structure which can be switched to.

  Further, in the present embodiment, the pair of rotating shaft portions 16 that are integrally connected to the cleaning head 11 are attached to the bearing frame portion 15 with the meshing uneven portions 16a meshing with each other. , The other cleaning head 11 can be automatically rotated to the opposite side of the one cleaning head 11 in synchronization with this.

  Furthermore, in this embodiment, the base end part 11a of the anchor base part 11h is between the rear end edge part of the plate-like main body part 11b of the cleaning head 11 and the connecting base part 11j of the base end part 11a. An interval groove 11k cut into an arc shape is held from the side opposite to the protruding side. By inserting a bearing sleeve portion 16c, which is a part of the rotary shaft portion 16 connected to the other cleaning head 11, into the gap groove 11k, a pair of cleaning heads 11 are stacked in a closed state (FIG. 2 (a)), not only the side where the base end portion 11a is separated from the bearing sleeve portion 16c of the other rotating shaft portion 16, but also the side where the base end portion 11a approaches the bearing sleeve portion 16c of the other rotating shaft portion 16. In addition, the pair of cleaning heads 11 can be rotated to be in an open state (see FIG. 2B) that is opened approximately 180 degrees to the left and right. That is, while avoiding interference between the base end portion 11a and the bearing sleeve portion 16c by the spacing groove 11k, the pair of cleaning heads 11 can be rotated so as to pass each other and opened in the opposite direction. It becomes possible. Also, by this, the pair of cleaning heads 11 are opened at about 180 degrees, and the pair of cleaning heads 11 are rotated 180 degrees to the opposite side from the state in which each one side is directed forward. Then, it is possible to switch to a state in which the other side portion is disposed forward with the other side portion being opened forward at approximately 180 degrees.

  In the present embodiment, as a cleaning member 14 that is detachably / replaceably mounted on the pair of cleaning heads 11, for example, a mop-shaped cleaning article having a fiber layer as shown in FIGS. 7A and 7B is used. It can be preferably used. In the present embodiment, the mop-shaped cleaning article 14 including the fiber layer includes four fiber layers 14a, 14b, 14c, and 14d, and has high trapping properties for dust, dust, and the like. The cleaning article 14 is formed by laminating four fiber layers 14a to 14d made of a fiber bundle and a pair of mounting sheets 14e and 14f made of a nonwoven fabric. The cleaning article 14 has two fiber layers on the upper and lower sides of the mounting sheets 14e and 14f, the fiber bundles in the fiber layers 14a to 14d are fluffed, and the overall shape of the cleaning article 14 is It is generally cylindrical. The fiber layer may have a two-layer structure with one layer on one side instead of a four-layer structure with two layers on one side.

  Each of the pair of mounting sheets 14e and 14f in the cleaning article 14 has a vertically long rectangular planar shape, and is joined to the plate of the cleaning head 11 by joining in two rows of joining regions 14g extending in the longitudinal direction. An insertion bag portion into which the main body portion 11b is inserted is formed. Engaging cuts 14h are formed in the short sides of the longitudinal ends of the mounting sheets 14e and 14f. The plate-like main body portion 11b of the cleaning head 11 is inserted into the insertion bag portion by the mounting sheets 14e and 14f of the cleaning article 14 up to the vicinity of the proximal end joint portion 11a, and the engagement base 14 is inserted into the engagement cut 14h. By engaging the engaging protrusion 11i of the portion 11h, the cleaning article 14 can be easily attached to each of the pair of cleaning heads 11 so as to be detachable and replaceable.

  In the cleaning tool 10 of the present embodiment, as shown in FIGS. 1A and 1B, while the cleaning member 14 is attached to each of the pair of cleaning heads 11, the handle portion 13 is stretched and contracted, Clean the floor and other cleaning areas.

  And according to the cleaning tool 10 of this embodiment provided with the above-mentioned structure, the cleaning width by the cleaning head 11 can be switched between the maximum width and the minimum width, so that the cleaning operation can be performed efficiently and the width of the narrow width can be reduced. The cleaning operation can also be performed effectively for the cleaning portion, and further, for example, the cleaning operation of sandwiching the blind and simultaneously cleaning the front and back of the blind can be easily performed.

  That is, according to the present embodiment, the cleaning tool 10 includes a pair of cleaning heads 11 on which the cleaning member 14 is mounted, and a pivot portion 12 that rotatably supports the base end portions 11a of the pair of cleaning heads 11. The pivot portion 12 is switched between a closed state in which the pair of cleaning heads 11 are vertically overlapped and an open state in which the pair of cleaning heads 11 are opened approximately 180 degrees to the left and right. Since the base end portion 11a of the cleaning head 11 is supported by a possible structure, the cleaning width obtained by superimposing the pair of cleaning heads 11 on the top and bottom is the minimum width, and the left and right sides are opened approximately 180 degrees. The cleaning width can be easily switched to the maximum width, and the cleaning operation can be performed efficiently.

  Further, according to the present embodiment, in a state where the pair of cleaning heads 11 are superposed on each other to make the cleaning width the minimum width, the cleaning width substantially corresponds to the width of only one cleaning head 11. Since it becomes a narrow width, it becomes possible to perform the cleaning operation effectively even for a narrow cleaning portion. In a state where the pair of cleaning heads 11 are superposed on each other so that the cleaning width is the minimum width, a conventional handy mop or the like can be used in various manners such as, for example, flapping.

  Furthermore, according to the present embodiment, the cleaning work can be performed in a closed state in which the pair of cleaning heads 11 to which the cleaning member 14 is mounted are vertically stacked. By sliding the thin and long object to be cleaned to the left and right in a state of being sandwiched between the upper and lower cleaning heads 11, for example, it is possible to simultaneously clean the front and back of the object. Even an elongated object such as an electric cord can be efficiently cleaned by sliding it to the left and right while being sandwiched between the upper and lower cleaning heads 11, for example.

  Furthermore, according to the present embodiment, the gap groove 11k is held between the rear end edge portion of the plate-like main body portion 11b of the cleaning head 11 and the connecting base portion 11j of the base end portion 11a. Further, by inserting the bearing sleeve portion 16c of the rotary shaft portion 16 integrated with the other cleaning head 11 into the gap groove 11k, while avoiding interference between the proximal end joint portion 11a and the bearing sleeve portion 16c. The pair of cleaning heads 11 can be rotated so as to be opened at about 180 degrees. Thus, the pair of cleaning heads 11 are opened to the left and right at about 180 degrees, and the pair of cleaning heads 11 are rotated 180 degrees to the opposite side from the state in which each one side portion is directed forward. Thus, it can be easily switched to a state in which each other side portion is disposed forward with the other side portion being opened to the left and right at approximately 180 degrees. For example, the cleaning member 14 mounted on the cleaning head 11 It is possible to perform the cleaning operation while efficiently using the entire cleaning member 14 with the one and other side portions alternately opposed to each other in the cleaning direction.

  In the present embodiment, the pair of cleaning heads 11 are fixed to the pivot portion 12 at a predetermined opening angle between a closed state in which the pair of cleaning heads 11 are vertically stacked and an open state in which the pair of cleaning heads 11 are opened approximately 180 degrees to the left and right. Stopper means 20 can be provided. As the stopper means 20, for example, as shown in FIGS. 5B and 6A, the overhanging support plate portion 15 b on the upper side of the bearing frame portion 15 in the rotary shaft portion 16 joined to one of the cleaning heads 11. A plurality of stopper pin locking holes 16e are provided around the central through hole 16d on the bottom surface in contact with the lower side surface, spaced apart from the central through hole 16d by a predetermined distance and spaced in the circumferential direction. On the other hand, a stopper pin insertion hole 15 c is formed in the overhanging support plate part 15 b on the upper side of the bearing frame part 15 so as to be spaced apart from one pin locking hole 18 by a predetermined distance. Then, the rotating shaft portion 16 is rotated with respect to the bearing frame portion 15 so that one stopper pin locking hole 16e selected from the plurality of stopper pin locking holes 16e is aligned with the stopper pin insertion hole 15c. Then, by inserting and locking the stopper pin 21, the pair of cleaning heads 11 are stepped at a predetermined opening angle between a closed state in which the pair of cleaning heads 11 are vertically stacked and an open state in which the pair of cleaning heads 11 are opened approximately 180 degrees to the left and right. Can be fixed.

  The stopper means 20 for fixing the pair of cleaning heads 11 at a predetermined opening angle can also be configured by providing a known ratchet mechanism or the like on the pivot portion 12.

  Since the pivot unit 12 is provided with the stopper means 20 for fixing the pair of cleaning heads 11 at a predetermined opening angle, the cleaning width obtained by superimposing the cleaning widths of the pair of cleaning heads 11 vertically is minimized. It becomes possible to perform cleaning by selecting in stages between the state where the width is reached and the state where the cleaning width which is opened to the left and right at about 180 degrees is the maximum width, and the situation of the cleaning place Depending on the situation, it becomes possible to perform the cleaning work more efficiently.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the pair of cleaning heads does not necessarily have to have a belt plate shape including a plate-like main body portion, and may have a rod shape or the like on which a cleaning member can be attached. In that case, it is preferable to form the spacing groove 11k by curving the rod itself into an arc shape. Further, the pair of cleaning heads does not necessarily have to be formed in a straight line, and may have a planar shape such as an arc shape or a wave shape, bend in a vertical direction, or warp. May be. In addition, the pair of cleaning heads does not necessarily have to be integrally formed and connected to the rotating shaft portion of the pivot portion. For example, the cleaning head and the pivot portion are separate parts, and the cleaning head is disposed on the lower surface of the rotating shaft portion 16. 11 base end portions 11b are bonded and connected, or a concave portion is formed in the rotary shaft portion 16 so that the base end portion 11b is fitted and attached to the rotary shaft portion 16 so as to be detachable and replaceable. There may be. Furthermore, the pivot portion is not necessarily required to be configured to include a bearing frame portion and a pair of rotating shaft portions that are rotatably supported by the bearing frame portion and have a meshing uneven portion on the outer peripheral surface. Absent. Furthermore, the left and right opening angles that maximize the opening width of the pair of cleaning heads 11 do not necessarily have to be approximately 180 degrees. For example, by adjusting the angle range of the meshing irregularities formed on the rotating shaft portion. However, it can be suitably set so that the opening angle is preferably 150 to 210 degrees.

DESCRIPTION OF SYMBOLS 10 Cleaning tool 11 Cleaning head 11a Base end part 11b Plate-shaped main-body part 11h Engagement base part 11i Engagement protrusion 11j Connection base seat part 11k Spacing groove 12 Pivot part 13 Handle part 14 Cleaning member (Mop-like cleaning provided with fiber layer) Goods)
14a, 14b, 14c, 14d Fiber layers 14e, 14f Mounting sheet 14h Engagement cut 15 Bearing frame portion 15a Back substrate portion 15b Overhanging support plate portion 15c Stopper pin insertion hole 16 Rotating shaft portion 16a Engaging uneven portion 16b Shaft body portion 16c Bearing sleeve portion 16d Central through hole 16e Stopper pin locking hole 17 Connecting pin 18 Pin locking hole 19 Connecting joint portion 20 Stopper means 21 Stopper pin

Claims (5)

A cleaning tool comprising a pair of cleaning heads to which a cleaning member is attached, a pivot part that rotatably supports the base end part of the pair of cleaning heads, and a handle part connected to the pivot part,
The said pivot part is the cleaning tool which is supporting the said base end part by the structure which can switch the said pair of cleaning head to the closed state which piled up and down, and the open state opened to right and left.   The pivot portion is configured to include a bearing frame portion and a pair of rotating shaft portions that are rotatably supported by the bearing frame portion and provided with meshing uneven portions on an outer peripheral surface, and the pair of rotating shafts. The base end portions of the pair of cleaning heads are connected to each other, and the vertical positions of the base end portion of one of the cleaning heads and the base end portion of the other cleaning head are shifted. The pair of rotating shaft portions are attached to the bearing frame portion by meshing the meshing uneven portions, whereby the pair of cleaning heads do not interfere with each other in the closed state. The cleaning tool according to claim 1, wherein the cleaning tool is opened and closed synchronously.   The pivot portion is provided with stopper means for fixing the pair of cleaning heads at a predetermined opening angle between a closed state in which the pair of cleaning heads are vertically stacked and an open state in which the pair of cleaning heads are opened to the left and right. Item 3. A cleaning tool according to item 1 or 2.   The pair of cleaning heads are rotated so as to pass each other and are opened in the opposite direction, so that each one side portion is disposed forward and each other side portion is disposed. The cleaning tool according to claim 1, wherein the cleaning tool can be switched to a state in which the part is disposed facing forward. The base end portion is a plate-like portion extending from one side portion of the end portion of the plate-like main body portion of the cleaning head, and is projected to the side from the one side portion, and then the plate-like portion. By folding back to the center side in the width direction of the main body part, a connecting base seat part is formed which is connected to the rotary shaft part rotatably supported by the bearing frame part in a substantially circular arc shape, and the rear end of the plate-like main body part Between the edge portion and the connecting pedestal portion , there is an interval groove cut into an arc shape from the side portion opposite to the side portion where the base end portion of the plate-like main body portion protrudes. A part of the rotating shaft part that is held and is connected to the other cleaning head is inserted into the gap groove to avoid interference between the base end part and the rotating shaft part. Item 5. A cleaning tool according to item 4.

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