JP2012020007A - Floor cleaning pad - Google Patents

Abstract

Provided is a floor surface cleaning pad devised so that the management cost can be reduced by unifying the size and shape of a pad piece and that an excellent cleaning ability can be exhibited.
The present invention relates to a floor cleaning pad 3 rotatably provided on a floor cleaning device for cleaning the floor surface, and is provided so as to face the floor surface. An annular pad base 12 having different outer diameters that are selectively used in accordance with the surface of the pad base 12 and the surface of the pad base 12 on the floor side are detachable and provided in a plurality along the circumferential direction. Pad pieces 15 having the same shape and the same size regardless of the diameter, each pad piece 15 having an outer peripheral portion 37 that is curved on the inner side of the outer diameter portion of the pad table 12 having the smallest outer diameter and a pad having the smallest outer diameter. The inner peripheral part 38 which curves outside the inner diameter part of the base 12 is formed in an arc shape.
[Selection] Figure 2

Description

  The present invention relates to a floor cleaning pad used in a floor cleaning apparatus such as a floor cleaning machine or a floor polishing machine.

  Conventionally, floor cleaning is performed by scraping the floor or polishing the floor by contacting the floor with a cleaning brush or nonwoven pad made of a non-woven fabric and rotating it at high speed with a motor. The device is known. However, when a floor surface made of, for example, ceramic tiles is cleaned using such a floor surface cleaning apparatus, brushes or pads that rotate at high speed are formed in the pores formed on the surface of the ceramic tile. As a result, there is a problem that dirt remains in the pores and the tile surface cannot be cleaned cleanly, leaving dirt.

  Therefore, in recent years, ceramic tiles are widely used as a pad material used in floor cleaning equipment for cleaning floor surfaces in hotels, airport lobbies, etc., compression with a high cleaning effect against dirt in pores Melamine foam has come to be used, and a method of cleaning a floor surface with a cleaning pad formed by compressing this compressed melamine foam into a disk shape has become widespread. On the other hand, compressed melamine foam has low durability and needs frequent replacement. Therefore, there is a need to improve the complexity of replacement work due to such lack of durability and to keep the cost of parts including replacement parts low. Has become apparent.

  Therefore, in Patent Document 1, for example, a protective pad having a plurality of holes formed at appropriate intervals is attached to a cleaning pad base, and the melamine foam made of melamine foam thicker than the protective pad is provided inside the plurality of holes. A technique is disclosed in which a pad piece is disposed and the pad piece is detachably attached to a pad base. By adopting such a configuration, even if the pad piece is worn, the pad base is protected by the protective pad, and in addition to preventing the accident that the pad base directly touches the floor surface and the floor surface is damaged, There is an advantage that only the pad piece can be easily replaced.

  For example, in patent document 2, the washing | cleaning part contact | abutted to a floor surface is comprised with a melamine foam, and those are arrange | positioned in multiple numbers and the clearance gap is provided between adjacent things. By adopting such a configuration, there is an advantage that it is possible to partially replace the pad piece while improving the water spraying of the cleaning water, and to reduce the maintenance cost.

Utility Model Registration No. 3145296 JP 2009-189595 A

  However, there are various types of floor surface cleaning devices, from small floor surface cleaning devices that clean relatively narrow passages to large floor surface cleaning devices that are operated by operators. Depending on the cleaning capability and specifications, the amount of water stored in the cleaning water and the sewage after cleaning, battery capacity, operating time, cleaning processing width, etc. will vary. Therefore, not only the size of tanks and batteries varies from model to model, but also cleaning brushes and pads with various diameters are used.

  In spite of such circumstances, the techniques disclosed in Patent Document 1 and Patent Document 2 do not provide any means for dealing with various variations of the above-described cleaning brush and pad. Therefore, when these conventional techniques are applied to cleaning pads of various dimensions, there are problems that a lot of variations are required for the molding shape and dimensions of the pad pieces, and the number of inventory increases and the management cost increases. there were.

  Therefore, the present invention provides a floor cleaning pad that is capable of reducing the management cost by unifying the size and molding shape of the pad pieces and that is devised so as to exhibit excellent cleaning ability. For the purpose.

  In order to achieve the above object, a floor surface cleaning pad according to claim 1 of the present invention is a floor surface cleaning pad that is rotatably provided in a floor surface cleaning device that performs floor surface cleaning, and the floor surface An annular pad base having different outer diameters, which is selectively used depending on the type of the floor surface cleaning device, and the surface of the pad base on the floor side. A plurality of pad pieces having the same shape and the same size regardless of the outer diameter of the pad base, each pad piece being an outer diameter portion of the pad base having the smallest outer diameter. An outer peripheral portion that is curved on the inner side and an inner peripheral portion that is curved on the outer side of the inner diameter portion of the pad base having the smallest outer diameter are formed in an arc shape.

  According to the configuration of the first aspect of the present invention, since the cleaning pad is configured by detachably providing a plurality of pad pieces having the same shape and the same dimensions, the pad pieces can be replaced, and maintainability is improved. In addition, it is only necessary to prepare a pad piece having a size and a size as a replacement part, and it is not necessary to prepare a stock of a plurality of types of pad pieces, leading to a reduction in member management costs.

  The floor cleaning pad according to claim 2 of the present invention is characterized in that the outer peripheral portion and the inner peripheral portion of each pad piece are formed by arcs having substantially the same diameter.

  According to the configuration of the second aspect of the present invention, since the outer peripheral portion and the inner peripheral portion of the pad piece are formed by arcs having substantially the same diameter, a plurality of pad pieces are formed from the pad piece material at the time of manufacturing the pad piece. When cutting out, the outer peripheral portion and the inner peripheral portion of the cut-out portions of the pad pieces adjacent to each other can be brought close to each other, and the manufacturing cost of the pad pieces can be reduced by reducing the extra material as much as possible.

  In the floor cleaning pad according to claim 3 of the present invention, the outer peripheral portion of the pad piece is curved corresponding to the outer diameter portion of the pad base having the smallest outer diameter, and both end portions of the pad piece are The pad base is attached so as to be in contact with the end portion of the adjacent pad piece.

  According to the configuration described in claim 3 of the present invention, since a plurality of pad pieces can be fixed to a pad base having a minimum outer diameter without using a guide plate or the like, the number of parts can be reduced and the cost can be reduced. It becomes. In particular, a plurality of pad bases having a minimum outer diameter are often used in a large floor cleaning apparatus, and since the number of use is large, the cost reduction effect of the entire apparatus is great.

  In the floor surface cleaning pad according to claim 4 of the present invention, a guide plate having a thickness smaller than that of the pad piece is provided on the surface of the pad base on the floor surface side. A guide portion is formed in which the inner peripheral portion and at least the end of the pad piece on the front end side in the rotational direction are in contact with each other.

  According to the configuration described in claim 4 of the present invention, by arranging the pad piece along the guide portion, the pad piece can be easily fixed at an appropriate position of the pad base, and difficult alignment, etc. No work is required. In addition, since the end of the pad piece in the rotational direction on the tip side is supported by the guide part, there is a risk that the pad piece will be easily displaced or detached even if some foreign matter comes into contact with the pad piece during the cleaning operation. As a result, the operability of the cleaning operation can be improved.

  The floor cleaning pad according to claim 5 of the present invention is characterized in that it is formed so as to support the pad piece in a posture inclined inward in the rotational direction.

  According to the configuration of the fifth aspect of the present invention, since the pad piece always maintains the posture in which it is inclined inward during rotation, even if a foreign matter hits the pad piece from the outside, most of the load applied to the pad piece is a guide. Since it acts on the inner side of the part, it is possible to reduce the risk of the pad piece being easily displaced or detached.

  The floor surface cleaning pad according to claim 6 of the present invention is characterized in that the inner inclined angle of the pad piece increases as the outer diameter dimension of the pad base increases.

  According to the configuration of the sixth aspect of the present invention, the width of the portion through which the pad piece passes during rotation is increased by increasing the inner inclined angle of the pad piece as the outer diameter of the pad base increases. Can do. Therefore, an appropriate cleaning width can be obtained according to the outer diameter of each pad base.

  The floor surface cleaning pad according to claim 7 of the present invention is characterized in that the pad base and each pad piece are joined via a hook-and-loop fastener.

  According to the structure of Claim 7 of this invention, a pad base and each pad piece can be attached or detached with one touch via a hook_and_loop | surface fastener, each pad piece can be replaced | exchanged easily, and maintenance property is improved. Can be achieved.

  The floor surface cleaning pad according to claim 8 of the present invention is characterized in that the pad base and the guide plate are joined via a surface fastener.

  According to the configuration of the eighth aspect of the present invention, in addition to the pad piece, the guide plate can be attached to and detached from the pad base with a single touch, and the maintenance performance of the guide plate can be improved. Even an annular cleaning pad can be diverted, versatility can be improved, and member management costs can be reduced.

  The present invention provides a floor cleaning pad devised so that the management cost can be reduced by unifying the dimensions and molding shape of the pad pieces and that an excellent cleaning ability can be exhibited.

1 is a perspective view of a medium-sized floor cleaning machine equipped with a floor cleaning pad according to a first embodiment of the present invention. It is a bottom view of the floor surface cleaning pad according to the first embodiment of the present invention. It is a disassembled perspective view which shows the structure of the floor cleaning pad which concerns on the 1st Embodiment of this invention. It is a partial bottom view of the floor cleaning pad concerning a 1st embodiment of the present invention. FIG. 5 is a cross-sectional view taken along the line AA in FIG. 4. It is explanatory drawing which shows typically the manufacturing method of the pad piece which concerns on the 1st Embodiment of this invention. It is a bottom view of the floor surface cleaning pad according to the second embodiment of the present invention. It is a perspective view of the small-sized floor surface washing machine by which the floor surface washing pad which concerns on the 3rd Embodiment of this invention is mounted. It is a bottom view of the floor surface cleaning pad according to the third embodiment of the present invention. It is a perspective view of the large sized floor surface washing machine by which the floor surface washing pad which concerns on the 4th Embodiment of this invention is mounted. It is a bottom view of the floor surface cleaning pad according to the fourth embodiment of the present invention.

<First Embodiment>
A floor cleaning pad (hereinafter abbreviated as “cleaning pad”) according to a first embodiment of the present invention and a floor cleaning machine equipped with the cleaning pad will be described with reference to FIGS. Hereinafter, the case where the left front surface in FIG. 1 is the front surface of the floor cleaning machine will be described.

  A floor cleaning machine 1 according to the first embodiment shown in FIG. 1 is a medium-sized floor cleaning machine 1, which is horizontally placed on a box-shaped main body 2 that is long in the front-rear direction and a front end of the bottom surface of the main body 2. A substantially disc-shaped guard member 9 attached to the guard member 9, a substantially disc-shaped cleaning pad 3 attached to the guard member 9, and a squeegee 4 attached to the rear end portion of the bottom surface of the main body 2 in a laterally extending shape. The front wheel 5 and the rear wheel 6 attached between the cleaning pad 3 and the squeegee 4 on the bottom surface of the main body 2 and the handle 7 attached to the rear end of the upper surface of the main body 2 are provided.

  A front surface of the upper surface of the main body 2 is provided with an inclined surface 8 that is inclined rearward toward the upper side. A cover of a washing water tank (not shown) provided on the inner front side of the main body 2 is provided on the inclined surface 8. 10 is attached. The washing water tank communicates with the vicinity of the washing pad 3 on the bottom surface of the main body 2 via a water supply hose (not shown) or the like, and the washing water stored in the washing water tank is passed through the above-described water supply hose or the like. Thus, it can be supplied to the vicinity of the cleaning pad 3.

  A sewage tank (not shown) is provided behind the washing water tank inside the main body 2, and a lid 11 of this sewage tank is attached to the rear of the washing water tank lid 10 on the upper surface of the main body 2. . The sewage tank communicates with a suction port (not shown) provided at the center in the left-right direction of the squeegee 4 via a suction hose (not shown) and the like, and a blower motor (not shown) provided inside the main body 2. The waste water sucked from the suction port through the suction hose can be introduced into the waste water tank.

  The cleaning pad 3 of the present embodiment is a cleaning pad 3 having a medium diameter, and is often mounted on a small to medium floor cleaning machine 1. The outer diameter D1 (see FIGS. 1 and 2) of the cleaning pad 3 is about 17 inches, and the outer diameter of the cleaning pad 3 is the cleaning width of the floor cleaning machine 1 as it is.

  As best shown in FIG. 3, the cleaning pad 3 includes an annular pad base 12, a rubber plate 13 as an annular spacer member attached to the lower surface of the pad base 12, and the rubber plate 13. An annular hook-and-loop fastener 14 that is attached to the lower surface of the hook-and-loop fastener, three pad pieces 15 that are attached to the lower surface of the hook-and-loop fastener 14 along the circumferential direction, and each pad piece 15 that is attached to the lower face of the hook-and-loop fastener 14. And an annular guide plate 16 for supporting the.

  The pad base 12 has an outer dimension of about 17 inches, preferably made of resin or wood, and is provided so as to face the floor surface. A bearing portion 17 is fixed to the center of the upper surface of the pad base 12. ing. The bearing portion 17 will be described with reference to FIGS. 4 and 5. The bearing portion 17 includes an inner cylinder portion 20 into which a lower end portion is inserted into a through hole 18 formed in the center of the pad base 12, An outer cylindrical portion 21 that is disposed on the outer periphery of the cylindrical portion 20 and whose lower end is in contact with the pad base 12 around the through hole 18, and a plurality of radial support arms 22 that connect the inner cylindrical portion 20 and the outer cylindrical portion 21. And.

  The outer peripheral surface of the inner cylinder portion 20 has a circular shape in plan view, and a fitting portion 23 having a regular hexagonal shape in plan view is provided on the inner peripheral surface. A main spindle 24 having a regular hexagonal cross section that protrudes downward from the bottom surface of the floor cleaning machine 1 is fitted to the fitting portion 23. The main shaft 24 is connected to a pad motor (not shown) arranged in the floor cleaning machine 1, and the main shaft 24 is moved by the pad motor in a state where the main shaft 24 is fitted to the fitting portion 23. By rotating, the cleaning pad 3 rotates integrally with the main shaft 24.

  The inner cylinder part 20 is provided with a thick part 25 at a part of the outer periphery thereof, and the outer cylinder part 21 is provided with a thick part 26 at a part of the outer periphery thereof, and an inner part is provided at each central part. An insertion hole 28 and an outer insertion hole 30 are formed in the horizontal direction, and a locking pin 31 as a locking mechanism is inserted through the inner insertion hole 28 and the outer insertion hole 30 in the horizontal direction. And the front-end | tip of this latching pin 31 fits into the concave groove 29 formed in the side surface of the main axis | shaft 24, and the fitting state of the main axis | shaft 24 and the fitting part 23 is hold | maintained. A stop hole 35 is formed in the top-bottom direction on the distal end side of the locking pin 31.

  An operation hole 27 is provided at a position between the inner cylinder portion 20 and the outer cylinder portion 21 of the pad base 12, and a lower portion of the lock operation piece 34 is inserted into the operation hole 27. A through hole 39 is horizontally drilled in the upper portion of the lock operation piece 34, and a vertical hole 19 is formed from the through hole 39 to the upper surface of the lock operation piece 34. Then, with the locking pin 31 inserted through the insertion hole 39, the locking pin 31 and the lock operating piece 34 are integrated with each other by fixing the bolt 33 to the upper and lower holes 19 and the locking hole 35 from above. Is supposed to work.

  A coil spring 32 is interposed on the peripheral surface of the locking pin 31 between the lock operation piece 34 and the inner peripheral surface of the outer cylinder portion 21 around the outer insertion hole 30. The coil spring 32 urges the locking pin 31 and the locking operation piece 34 toward the inside (right side in FIG. 5), and the fitting state between the tip of the locking pin 31 and the groove 29 is maintained. The lower part of the lock operation piece 34 abuts on the inner part of the operation hole 27 so that the horizontal movement of the lock operation piece 34 is restricted.

  Referring to FIG. 3 again, the rubber plate 13 has an outer diameter of about 17 inches like the pad base 12 and may be detachably attached to the pad base 12 or when it is not particularly necessary to attach or detach. May be fixed to the lower surface of the pad base 12 using an adhesive or the like in a non-detachable manner. In this embodiment, the spacer member is formed by the rubber plate 13, but in other different embodiments, for example, the spacer member is formed by a flexible sponge plate similar to the rubber plate 13. Is also possible.

  The hook-and-loop fastener 14 has substantially the same shape as the rubber plate 13, and may be detachably attached to the lower surface of the rubber plate 13. If there is no particular need to attach or detach, the rubber fastener 14 is used with an adhesive or the like. It may be fixed to the lower surface of 13 in a non-detachable manner. As with the pad base 12 and the rubber plate 13, the surface fastener 14 has an outer diameter of about 17 inches and an inner diameter (the diameter of the central hole. Hereinafter, when an annular member is referred to as an "inner diameter part" Although used in the same meaning, the pad base 12 indicates the diameter of the portion excluding the bearing portion 17 and the surrounding through holes 18 and set screws, and is indicated by the inner diameter portion 12b in FIG. Same as plate 13. A hook surface 36 is formed on the lower surface of the surface fastener 14, and a member having a loop is detachably joined to the hook surface 36.

  Each pad piece 15 is formed of compressed melamine foam, has a certain thickness, and has a bilaterally symmetric shape. Each pad piece 15 has a curved outer peripheral portion 37, an inner peripheral portion 38 that curves in the same direction as the outer peripheral portion 37 inside the outer peripheral portion 37, and both planar ends that connect the outer peripheral portion 37 and the inner peripheral portion 38. The outer peripheral part 37 and the inner peripheral part 38 are formed in a circular arc shape.

A loop surface 41 is formed on the upper surface of each pad piece 15 so as to be detachably joined to the hook surface 36 of the hook-and-loop fastener 14 by affixing a loop material in advance. As described above, since each pad piece 15 has a symmetrical shape, it does not hinder attachment to the hook-and-loop fastener 14 regardless of which surface the loop surface 41 is formed on. The outer peripheral portion 37 of each pad piece 15 is curved corresponding to the outer diameter portion 12a of the pad base 12 having an outer diameter of 13 inches used for the small diameter cleaning pad 3 described in the fourth embodiment described later. (See FIG. 11).
The outer peripheral portion 37 and the inner peripheral portion 38 of each pad piece 15 are formed by arcs having substantially the same diameter. That is, the outer peripheral portion 37 and the inner peripheral portion 38 of each pad piece 15 have substantially the same curvature. In this embodiment, the outer peripheral portion 37 and the inner peripheral portion 38 of each pad piece 15 are formed by arcs having substantially the same diameter as described above. However, in other different embodiments, the arc of the inner peripheral portion 38 is formed. It is also possible to make the diameter slightly larger than the diameter of the arc of the outer peripheral portion 37.

  The guide plate 16 is made of, for example, hard rubber, resin, or wood, and is formed thinner than each pad piece 15. The inner diameter of the guide plate 16 is substantially the same as the inner diameter of the rubber plate 13 and the surface fastener 14 so that the inner diameter portions of the rubber plate 13, the surface fastener 14, and the guide plate 16 do not overlap the bearing portion 17 of the pad base 12. It has been adjusted. As described above, by making the inner diameters of the rubber plate 13, the hook-and-loop fastener 14, and the guide plate 16 substantially the same, it becomes easy to align these members when attaching and detaching, and workability is improved. A loop material is preliminarily pasted on the upper surface of the guide plate 16 to form a loop surface 42, and the loop surface 42 is detachably joined to the hook surface 36 of the surface fastener 14.

  The loop material does not necessarily have to be manufactured corresponding to the hook material of the hook-and-loop fastener 14, and for example, a tricot knitted fabric in a knitted fabric is used as the loop material, and each pad piece 15 or guide plate is used. You may use as 16 joining members.

  In the guide plate 16, three guide portions 43 are cut out at equal intervals in the circumferential direction. Each guide portion 43 includes a curved inner peripheral abutment portion 44 that inclines gently inward with respect to the rotation direction of the pad base (see arrows in FIGS. 2 and 3), and the rotation of the inner peripheral abutment portion 44. And a linear tip contact portion 45 that is provided on the tip end side in the direction and is bent outward from the inner peripheral contact portion 44. Then, the inner peripheral portion of each pad piece 15 is brought into contact with the inner peripheral contact portion 44 in a state where one end portion 40 (end portion on the front end side in the rotation direction) of each pad piece 15 is brought into contact with the distal end contact portion 45. 38 is formed to contact. In this manner, in a state where one end 40 of each pad piece 15 is brought into contact with the tip contact part 45 and the inner peripheral part 38 of each pad piece 15 is brought into contact with the inner peripheral contact part 44. The other end 40 of each pad piece 15 is not guided.

  Next, an example of a method for manufacturing each pad piece 15 described above will be described below with reference to FIG.

  Each pad piece 15 of the present embodiment is manufactured by cutting a pad piece material 46 formed of compressed melamine foam along the shape of each pad piece 15. In this embodiment, since the outer peripheral portion 37 and the inner peripheral portion 38 of each pad piece 15 have an arc shape with substantially the same diameter in this embodiment, the interval 48 between the cutout portions 47 of the pad pieces 15 is substantially the same width. It becomes a narrow band shape. Therefore, the outer peripheral portion and the inner peripheral portion of the cutout portion 47 of the pad pieces 15 adjacent to each other can be brought close to each other, and the interval 48 between the cutout portions 47 can be reduced as much as possible. Therefore, it is possible to reduce the manufacturing cost of each pad piece 15 by reducing extra materials. Further, by reducing the interval 48 between the cutout portions 47, the extraction pitch of each pad piece 15 can be shortened, so that the number of pad pieces 15 that can be cut out from the pad piece material 46 of a certain size can be increased. it can.

  Further, when the outer peripheral portion 37 and the inner peripheral portion 38 of each pad piece 15 are formed in an arc shape having substantially the same diameter as in the present embodiment, the pad piece 15 is cut out as another different manufacturing method. It is also possible for the portion 47 to be continuous without the spacing 48. In this case, after cutting out the plurality of pad pieces 15 from the pad piece material 46 in a state where the outer peripheral part 37 and the inner peripheral part 38 of each pad piece 15 are connected, using a curved blade-shaped tool, It is also possible to cut the boundary portion of each pad piece 15. In this manner, by forming the cutout portion 47 of each pad piece 15 without providing the interval 48, it is possible to further reduce the manufacturing cost of each pad piece 15 by further reducing the extra material portion. At the same time, the extraction pitch of each pad piece 15 can be further shortened.

  Furthermore, in this embodiment, each pad piece 15 is manufactured by alternately changing the direction in the longitudinal direction as shown in the figure, and the punching pitch in the longitudinal direction can be further shortened. The shape and angle of both end portions 40 are determined so that both end portions 40 of 15 can be manufactured in the same manner as described above by reducing the interval or by continuously forming them without providing an interval. .

  Next, a method of attaching / detaching each pad piece 15 to / from the pad base 12 when assembling the cleaning pad 3 or replacing each pad piece 15 will be described below.

  First, the loop surface 42 of the guide plate 16 is joined to the hook surface 36 of the surface fastener 14 so that the positions of the inner diameter portion of the surface fastener 14 and the inner diameter portion of the guide plate 16 are matched. Next, one end 40 of each pad piece 15 is brought into contact with the tip contact portion 45 of each guide portion 43 of the guide plate 16, and each pad piece 15 is brought into contact with the inner peripheral contact portion 44 of each guide portion 43. The loop surface 41 of each pad piece 15 is joined to the hook surface 36 of the hook-and-loop fastener 14 with the inner peripheral portion 38 in contact.

  In this state, when each pad piece 15 is pressed to the surface fastener 14 side with a constant load, the loop surface 41 of each pad piece 15 is firmly joined to the hook surface 36 of the surface fastener 14, and each pad piece 15 is surface-attached. It is fixed to the fastener 14. Thus, as shown in FIG. 2, each pad piece 15 is arranged along each guide portion 43 of the guide plate 16 and is supported on the guide plate 16 in a posture inclined inward in the rotation direction of the cleaning pad 3. Is done.

  Thus, when each pad piece 15 is joined to the hook-and-loop fastener 14, the rubber plate 13 is interposed between the pad base 12 and the hook-and-loop fastener 14. Is easy to pressurize, and it is possible to improve the bondability between the hook-and-loop fastener 14, the pad pieces 15 and the guide plate 16. Further, each pad piece 15 once attached can be removed from the hook-and-loop fastener 14 relatively easily if it is pulled perpendicularly to the joint surface with a certain force or more.

  As described above, each pad piece 15 is detachably joined to the pad base 12 via the hook-and-loop fastener 14, so that each pad piece 15 is worn and thinned overall, or only a part is thin. In such a case, the pad piece 15 can be removed from the pad base 12 by pulling the pad piece 15 with a certain force or more and easily replaced with another pad piece 15 for replacement. Therefore, the pad piece 15 can be replaced with a single touch, and maintenance can be improved.

  Further, in the present embodiment, not only the pad pieces 15 but also the guide plate 16 are detachably joined to the pad base 12 via the surface fasteners 14, so that the maintainability can be further improved. . Furthermore, depending on the case, it is also possible to remove all the pad pieces 15 and the guide plate 16 from the surface fastener 14 and attach a conventional annular non-woven pad piece (not shown) to the surface fastener 14. . Therefore, the pad piece 15 according to the present invention and the conventional pad piece can be properly used by using the same pad base 12, eliminating the need to prepare a plurality of pad bases 12 having the same outer diameter, and improving the versatility. Management costs can be reduced.

  In the present embodiment, the hook surface 36 is provided on the lower surface of the hook-and-loop fastener 14, and the loop surfaces 41 are provided on the lower surfaces of the pad pieces 15 and the guide plate 16, respectively, but in other different embodiments, Conversely, it is of course possible to provide the loop surface 41 on the lower surface of the hook-and-loop fastener 14 and the hook surfaces 36 on the lower surfaces of the pad pieces 15 and the guide plate 16.

  Further, if the thickness of the guide plate 16 becomes too thick, the difference between the thickness of the guide plate 16 is reduced when each pad piece 15 is worn and thinned. The risk of reaching the floor surface increases. Therefore, the guide plate 16 is preferably 1/3 or less with respect to the thickness of each pad piece 15. On the other hand, if the guide plate 16 is too thin, the pad pieces 15 may not be sufficiently supported. Therefore, most preferably, if the guide plate 16 is about 1/5 of the thickness of each pad piece 15, a sufficient margin for wear of the pad piece 15 is secured, and the workability of the mounting work of the pad piece 15 is improved. The supporting force of each pad piece 15 by the guide plate 16 can be increased at the same time.

  Next, a method for cleaning the floor surface using the floor surface cleaning machine 1 provided with the cleaning pad 3 of the present embodiment described above will be described.

  First, the floor cleaning machine 1 is turned on, and the operator pushes or pulls the handle 7 of the floor cleaning machine 1 to run. At that time, a built-in traveling motor or the like (not shown) is driven to assist the above traveling. At the same time, the cleaning water stored in the cleaning water tank is mixed with a detergent or the like as appropriate and then dropped onto the floor surface near the cleaning pad 3 via a water supply hose or the like, and the spindle 24 and the cleaning pad are driven by a pad motor. Rotate 3 to clean the floor. The cleaned sewage is collected in the center by the squeegee 4 located on the back side of the main body 2, and is collected by suction from the suction port through a suction hose and the like by a blower motor, and is stored in the sewage tank. At this time, the rotation direction of the cleaning pad 3 is determined in one direction in advance, and the reverse rotation of the cleaning pad 3 is not normally performed.

  At the time of cleaning the floor surface, for example, when any foreign matter or the like that has fallen on the floor surface comes into contact with each pad piece 15 or when each pad piece 15 tries to ride on the foreign matter or the like, An external force is applied to the piece 15 from the outside toward the inside. However, since each pad piece 15 is supported by the guide plate 16 in a posture inclined inward in the rotation direction of the cleaning pad 3, the external force applied to each pad piece 15 is relatively long and relatively long on the outer peripheral portion 37. It can be received at the inclined part. For this reason, since most of the load applied to the pad pieces acts inward of the guide portion, it is possible to extremely reduce the risk that each pad piece 15 is easily detached or displaced from the surface fastener 14.

  In addition, since the end portion 40 on the front end side in the rotational direction of the pad piece 15 is supported by the guide plate 16, the end portion 40 on the rear end side in the rotational direction is released, so that some foreign matter is present on the pad piece 15 during the cleaning operation. Even if the contact is strong, the risk that the load applied to the pad piece reaches the guide portion and the guide portion is easily displaced or detached is reduced, and the workability of the cleaning work can be improved. Further, as a worst case, even when the pad piece 15 bites foreign matter, only one pad piece 15 needs to be detached from the hook-and-loop fastener 14 and has a limiter function that does not damage the floor cleaning machine 1. It can be said that.

Moreover, since each pad piece 15 is inclined inward with respect to the rotation direction as described above, the width (see arrow X in FIG. 2) of the portion through which each pad piece 15 passes during rotation can be increased. A wide washing range can be covered.
<Second Embodiment>
Next, the cleaning pad 3 according to the second embodiment of the present invention will be described with reference to FIG.

  The cleaning pad 3 is a large-diameter cleaning pad 3 and is mainly mounted on a medium to large-sized floor cleaning machine 1, and the outer diameter D2 (see FIG. 7) is about 20 inches. As with the cleaning pad 3 of the first embodiment, the cleaning pad 3 of the present embodiment has an annular pad base 12 and a rubber plate 13 as an annular spacer member attached to the lower surface of the pad base 12. An annular hook-and-loop fastener 14 attached to the lower surface of the rubber plate 13, three pad pieces 15 attached to the lower surface of the hook-and-loop fastener 14 at equal intervals along the circumferential direction, and the hook-and-loop fastener 14 And an annular guide plate 16 that is attached to the lower surface and supports the pad piece 15.

  The pad base 12, the rubber plate 13, and the hook-and-loop fastener 14 have an outer diameter of about 20 inches corresponding to the outer diameter of the cleaning pad 3. About the shape of the pad base 12, the rubber plate 13, and the hook-and-loop fastener 14, since it is the same as that of 1st Embodiment, description is abbreviate | omitted.

  Each pad piece 15 has the same shape and the same size as each pad piece 15 of the first embodiment. That is, the outer peripheral portion 37 of each pad piece 15 corresponds to the outer diameter portion 12a of the pad base 12 having an outer diameter of 13 inches used for the small diameter cleaning pad 3 described in the fourth embodiment described later. Is curved.

  Each guide portion 43 of the guide plate 16 is inclined more inwardly of the inner peripheral contact portion 44 with respect to the rotation direction of the cleaning pad 3 than each guide portion 43 of the guide plate 16 of the first embodiment. Yes. Therefore, as is clear from FIGS. 2 and 7, when each pad piece 15 is arranged along each guide portion 43, the inner inclination angle of each pad piece 15 becomes larger than in the case of the first embodiment. In the first embodiment, the entire inner peripheral portion 38 of each pad piece 15 is in contact with the inner peripheral contact portion 44 of each guide portion 43. As the inner inclination angle increases, only one end 40 (end on the front end side in the rotation direction) of the inner peripheral portion 38 of each pad piece 15 is in contact with the inner peripheral contact portion 44. .

  The method for attaching and detaching each pad piece 15 to and from the pad base 12 is the same as in the case of the first embodiment, and thus description thereof is omitted.

When the cleaning pad 3 configured as described above is rotated in the same manner as in the first embodiment, the inner inclination angle of each pad piece 15 is made larger than that in the first embodiment. The width of the portion through which the pad piece 15 passes during rotation (see the arrow Y in FIG. 7) while using the pad piece 15 having the same size and the same shape is set in the case of the first embodiment (the arrow X in FIG. 2). (See). Accordingly, the cleaning width can be increased in response to the diameter of the cleaning pad 3 being larger than that in the first embodiment, and an appropriate cleaning width can be obtained according to the outer diameter of the cleaning pad 3. Can do.
<Third Embodiment>
A cleaning pad 3 according to a third embodiment of the present invention and a floor cleaning machine 1 equipped with the same will be described with reference to FIGS. Hereinafter, a case where the left front surface in FIG. 8 is the front surface of the floor cleaning machine 1 will be described.

  The floor cleaning machine 1 according to the third embodiment is a small floor cleaning machine 1 and is connected to a cylindrical sewage tank 50 having a lid 11 and a box-shaped cleaning water tank 51 having a lid 10. The main body 2 connected in the front-rear direction by the portion 52, the substantially disc-shaped guard member 9 attached to the bottom surface of the main body 2 below the sewage tank 50, the cleaning pad 3 attached in the guard member 9, and the A squeegee 4 attached to the bottom surface of the main body 2 behind the cleaning pad 3 and attached in a slightly protruding shape in the left-right direction, a pair of left and right casters 53 attached in front of the lower end of the sewage tank 50, and a cleaning water tank 51 A pair of left and right wheels 54 attached to the lower end portion and a handle 7 attached to the upper rear side of the washing water tank 51 are provided.

  The configuration for supplying the cleaning water from the cleaning water tank 51 to the vicinity of the cleaning pad 3 and the configuration for sucking the cleaned sewage from the squeegee 4 to the sewage tank 50 are the same as in the first embodiment, and thus described. Is omitted.

  The cleaning pad 3 is a small-sized cleaning pad 3, and a plurality of cleaning pads 3 may be mounted on the large floor cleaning machine 1. However, a single cleaning pad 3 is mounted on the small floor cleaning machine 1 as in this embodiment. There are many. The outer diameter D3 (see FIGS. 8 and 9) of the cleaning pad 3 is about 15 inches, and the outer diameter of the cleaning pad 3 is the cleaning width of the floor cleaning machine 1 as it is.

  As with the cleaning pad 3 of the first and second embodiments, the cleaning pad 3 includes an annular pad base 12 and a rubber plate 13 as an annular spacer member attached to the lower surface of the pad base 12. The annular surface fastener 14 attached to the lower surface of the rubber plate 13, three pad pieces 15 attached along the circumferential direction to the lower surface of the surface fastener 14, and the lower surface of the surface fastener 14. And an annular guide plate 16 that supports each pad piece 15.

  The pad base 12, the rubber plate 13, and the hook-and-loop fastener 14 have an outer diameter of about 15 inches corresponding to the outer diameter of the cleaning pad 3. About the shape of the pad base 12, the rubber plate 13, and the hook-and-loop fastener 14, since it is the same as that of 1st Embodiment, description is abbreviate | omitted.

  Each pad piece 15 has the same shape and the same size as each pad piece 15 of the first and second embodiments. That is, the outer peripheral portion 37 of each pad piece 15 corresponds to the outer diameter portion 12a of the pad base 12 having an outer diameter of about 13 inches used for the small-diameter cleaning pad 3 described in the fourth embodiment described later. And curved.

  The guide plate 16 is provided with three guide portions 43 in the circumferential direction. Each guide portion 43 includes a curved inner peripheral contact portion 44 formed to face the outer diameter portion 12 a of the pad base 12, and inner peripheral contact portions on both sides of the inner peripheral contact portion 44. And both ends abutting portions 55 that are bent outward from 44, and each pad piece is in a state where both ends 40 of each pad piece 15 are in contact with both ends abutting portions 55. Fifteen inner peripheral portions 38 are formed so as to contact the inner peripheral contact portion 44.

  Further, in the first and second embodiments, the inner peripheral contact portion 44 of each guide portion 43 is inclined with respect to the circumferential direction of the pad base 12, but in this embodiment, each guide portion The inner peripheral abutting portion 44 of 43 is disposed substantially without inclining with respect to the circumferential direction of the pad base 12. Therefore, when each pad piece 15 is disposed along each guide portion 43, each pad piece 15 is disposed in a posture that is not substantially inclined with respect to the rotation direction of the cleaning pad 3.

  The method for attaching and detaching each pad piece 15 to and from the pad base 12 is the same as in the first and second embodiments, and thus description thereof is omitted.

  In order to clean the floor surface using the floor surface cleaning machine 1 having the above-described cleaning pad 3 of the present embodiment, while the operator pushes or pulls the handle 7 of the floor surface cleaning machine 1 while traveling, Cleaning is performed in the same manner as in the first embodiment. In the present embodiment, since each pad piece 15 is arranged in a posture not inclined with respect to the rotation direction, the width Z (see FIG. 9) of the portion through which each pad piece 15 passes is Compared with the case of 1 and 2nd embodiment, it becomes small.

  Even when each pad piece 15 receives an external force during this cleaning, in the present embodiment, as described above, both end portions 40 and the inner peripheral portion 38 of each pad piece 15 are supported by the guide portion 43. There is very little risk that each pad piece 15 will be easily detached or displaced from the surface fastener 14.

  When only one cleaning pad 3 is attached to a small cleaning machine as in this embodiment, the rotation direction of the cleaning pad 3 is determined in one direction in advance, and it is normal to reversely rotate the cleaning pad 3. Not performed. However, a plurality of cleaning pads 3 according to the present embodiment are often mounted on the large floor cleaning machine 1 as described above. In this case, one cleaning pad 3 and another cleaning pad 3 are connected. It is necessary to rotate in directions opposite to each other (see the fourth embodiment). In this regard, in the cleaning pad 3 of the present embodiment, since both end portions 40 of each pad piece 15 are supported by both end contact portions 55 of each guide portion 43, the cleaning pad 3 is rotated in any direction. Even in this case, the end 40 on the front end side in the rotation direction of each pad piece 15 is supported by each guide part 43, and there is very little possibility that each pad piece 15 is displaced or detached.

In the first to third embodiments, the case where each pad piece 15 is brought into contact with the guide portion 43 of each guide plate 16 has been described. However, in another different embodiment, the guide portion 43 of each guide plate 16. The pad pieces 15 may be brought close to each other. In the first to third embodiments, the inclination of each pad piece 15 is determined by the shape of the guide plate 16 with which each pad piece 15 abuts. In other different embodiments, for example, It is also possible to use the guide plate 16 as an attachment jig that is used only when each pad piece 15 is attached. Further, a method is adopted in which, without using the guide plate 16, a mounting position of each pad piece 15 is drawn in advance on the surface of the hook-and-loop fastener 14, and each pad piece 15 is attached along the line. Is also possible.
<Fourth Embodiment>
A cleaning pad 3 and a floor cleaning machine 1 having the same according to a fourth embodiment of the present invention will be described with reference to FIGS. 10 and 11. Hereinafter, a case where the front left surface in FIG. 10 is the front surface of the floor cleaning machine 1 will be described.

  The floor cleaning machine 1 of the fourth embodiment is a large floor cleaning machine 1, a main body 2 provided with an operation seat 56 on the front surface, and a main body 2 that is erected in front of the main body 2 and A support base 58 connected via a connection plate 57, a handle 7 attached to the upper surface of the support base 58, a front wheel 5 attached to the connection plate 57 below the support base 58, and a main body behind the front wheel 5 2 and a pair of left and right cleaning pads 3 attached to the bottom surface of the body 2, a rear wheel 6 attached to the main body 2 behind the cleaning pad 3, and attached in a shape protruding in the left-right direction of the main body 2 further behind the rear wheel 6 The squeegee 4 is provided.

  A washing water tank and a sewage tank, both of which are not shown, are provided inside the main body 2. Since the configuration for supplying the cleaning water from the cleaning water tank to the cleaning pad 3 and the configuration for sucking the cleaned sewage from the squeegee 4 to the sewage tank are the same as those in the first embodiment, description thereof is omitted.

  The cleaning pad 3 of this embodiment is a small-diameter cleaning pad 3 and is often mounted on a large floor cleaning machine 1 as in this embodiment, and the outer diameter D4 (see FIG. 11) is 13 inches. Degree. In the present embodiment, two small-diameter cleaning pads 3 are mounted. The cleaning width W (see FIG. 10) covered by the two small-diameter cleaning pads 3 is small and medium-sized as described above. It is larger than the floor cleaning machine 1.

  The cleaning pad 13 includes an annular pad base 12, a rubber plate 13 as an annular spacer member attached to the lower surface of the pad base 12, and an annular surface fastener 14 attached to the lower surface of the rubber plate 13. , And three pad pieces 15 attached along the circumferential direction to the lower surface of the surface fastener 14. That is, the cleaning pad 3 of the present embodiment is formed without using the guide plate 16, unlike the cleaning pads 3 of the first to third embodiments.

  The pad base 12 has an outer diameter of about 13 inches, and is the pad base 12 having the smallest outer diameter among the pad bases 12 of the first to fourth embodiments.

  Each pad piece 15 has the same shape and the same size as each pad piece 15 of the first to third embodiments. That is, the outer peripheral portion 37 of each pad piece 15 is curved corresponding to the outer diameter portion 12a of the pad base 12 of the present embodiment having an outer diameter of about 13 inches. Therefore, when the outer peripheral portion 37 of each pad piece 15 is arranged along the outer diameter portion 12a of the pad base 12, the outer peripheral portion 37 of each pad piece 15 and the outer diameter portion 12a of the pad base 12 have the same arc in plan view. It is arranged on the top. The inner peripheral portion 38 of each pad piece 15 is flat on the inner diameter portion of the hook-and-loop fastener 14 when the pad piece 15 is disposed on the pad base 12. It overlaps visually.

  In the present embodiment, the outer peripheral portion 37 of each pad piece 15 and the outer diameter portion 12a of the pad base 12 having the smallest outer diameter are arranged on the same arc in plan view. In the different embodiments, the outer peripheral portion 37 of each pad piece 15 may be curved inside the outer diameter portion 12a of the pad base. Further, in this embodiment, as shown in FIG. 11, the inner peripheral portion 38 of each pad piece 15 is curved outside the inner diameter portion 12b of the pad table 12 having the smallest outer diameter, but other different embodiments are provided. Then, the inner peripheral part 38 of each pad piece 15 may be arrange | positioned on the same circular arc as the internal diameter part 12b of the pad stand 12 of the minimum outer diameter.

  Next, a method of attaching / detaching each pad piece 15 to / from the pad base 12 when assembling the cleaning pad 3 or replacing each pad piece 15 will be described below.

  First, the first pad piece 15 is arranged on the surface fastener 14 so that the outer peripheral portion 37 is along the outer diameter portion 12a of the pad base 12, and is pressed with a constant load. Thereby, the loop surface 41 of the first pad piece 15 is joined to the hook surface 36 of the surface fastener 14, and the pad piece 15 is fixed to the surface fastener 14. Next, the second pad piece 15 has an outer peripheral portion 37 along the outer diameter portion 12a of the pad base 12, and the second pad piece 15 is attached to the end of each of the first pad pieces 15 already fixed. It arrange | positions so that the edge part of 15 may contact | abut, and it fixes by pressure similarly. Finally, the third pad piece 15 has its outer peripheral portion 37 along the outer diameter portion 12a of the pad base 12 and both ends at the ends of the already-fixed first and second pad pieces 15. It arrange | positions so that it may contact | abut and it fixes by pressure similarly. As a result, each of the three pad pieces 15 is fixed to the hook surface 36 of the hook-and-loop fastener 14 so that both end portions 40 thereof are in contact with the end portions of the adjacent pad pieces 15. Of course, if each pad piece 15 once attached is pulled in a direction perpendicular to the joint surface with a certain force or more, it can be removed from the surface fastener 14 relatively easily.

  In the present embodiment, as described above, each pad piece 15 can be fixed to the pad base 12 without using the guide plate 16 or the like. Therefore, it is possible to reduce the number of parts and reduce the cost. In particular, the cleaning pad 3 of about 13 inches of this embodiment is often used in a large number of floor cleaning machines 1 and is used in large numbers, so that the cost reduction effect of the entire apparatus is great.

  Next, in order to clean the floor using the large floor cleaning machine 1 having the cleaning pad 3 of the present embodiment described above, the operator gets on the operation seat and operates the handle 7 or is illustrated. The large floor cleaning machine 1 is caused to travel with a travel motor or engine (not shown). At the same time, the pair of cleaning pads 3 are rotated, and cleaning water is dropped between the cleaning pads 3 to perform cleaning, and the squeegee 4 disposed at the rear of the main body 2 sucks and collects the cleaned sewage. .

  Even when an external force is applied to each pad piece 15 during the cleaning of the floor surface, in the present embodiment, as described above, both end portions 40 of each pad piece 15 come into contact with each other to receive the external force. Since each pad piece 15 is supported by each other, there is very little risk that each pad piece 15 is easily detached from or displaced from the surface fastener 14.

  Further, when cleaning is performed using a pair of cleaning pads 3 as in this embodiment, as shown in FIG. 10, cleaning that is dropped on the floor surface by rotating the cleaning pads 3 in opposite directions. Prevent water from flowing out of the washing width W as much as possible. Therefore, in this case, it is assumed that the pair of cleaning pads 3 are rotated in directions opposite to each other. In this regard, in the present embodiment, since both end portions 40 of each pad piece 15 are in contact with each other to receive external force, each pad piece 15 can be rotated regardless of which direction the pad piece 15 rotates. However, there is very little risk that the pad fastener 15 and the surface fastener 14 are displaced from each other.

  In this embodiment, both end portions 40 of each pad piece 15 are brought into contact with each other as described above. However, in other different embodiments, both end portions 40 of each pad piece 15 are not brought into contact with each other. , May be arranged close to each other.

  As described above, in the cleaning pad 3 of the first to fourth embodiments, the cleaning pad 3 is configured with respect to the pad base 12 having four types of outer diameters using the pad pieces 15 having the same shape and the same dimensions. Can do. That is, since the cleaning pad 3 can be configured with only one type of pad piece 15 for the pad base 12 with various outer diameters, the versatility of the pad piece 15 can be enhanced. As described above, the present invention enables unification of the manufacturing shape and reduction of the management cost in the cleaning pad 3 having many dimensional variations adopted in the floor cleaning machine 1 in which various types of model lineups exist. , Can exhibit excellent cleaning ability.

  The cleaning pad 3 of the present invention is preferably used mainly for the cleaning pad 3 using a compressed melamine foam, but the configuration of the present invention is applied to the cleaning pad 3 of other materials, or the compression pad 3 is compressed. It is technically possible to employ the cleaning pad 3 of the present invention in the cleaning pad 3 in which the cleaning pad 3 of melamine foam and the cleaning pad 3 of another material are combined.

  In particular, in a large cleaning pad such as the cleaning pad 3 of the second embodiment, it is assumed that a high load is applied during cleaning. Therefore, it is preferable to increase the number of each pad piece 15 mounted to four or six instead of three to distribute the load. Further, the number of the pad pieces 15 mounted may be properly used depending on the material of the pad pieces 15.

  Further, the outer diameter of the pad base 12 used for the cleaning pad 3 is not limited to those exemplified in the above embodiments. For example, the outer diameter of the pad base 12 of the first embodiment may be about 15 inches instead of about 17 inches, and the outer diameter of the pad base 12 of the second embodiment is about 20 inches. Instead, the outer diameter of the pad base 12 (minimum size pad base) of the fourth embodiment may be about 15 inches instead of about 13 inches. The cleaning pad 3 of the present invention is suitable for use mainly on flooring materials made of ceramic tiles, but the usage pattern is not limited thereto. Further, in each of the above embodiments, the case where the floor surface cleaning apparatus of the present invention is applied to a floor surface cleaning machine has been described. However, in other different embodiments, cleaning other than the floor surface cleaning machine, such as a floor surface polishing machine, is performed. It is also possible to apply the floor surface cleaning apparatus of the present invention to the apparatus.

  The configuration of the floor cleaning machine 1 and the floor cleaning pad 3 described in the embodiment of the present invention is an example, and the embodiment of the present invention described above is a preferred specific example of the present invention, and technically. Various preferred limitations may be given, but the technical scope of the present invention is not limited to these embodiments unless specifically described to limit the present invention.

  The technology of the present invention can be used to clean a small floor surface used in a convenience store having a relatively narrow passage from a large floor surface washing machine 1 used in a facility having a large floor such as a hotel or an airport lobby. The machine 1 is expected to be used as a floor cleaning pad 3 corresponding to variations of the floor cleaning machine 1 of various specifications.

1 Floor cleaning machine (Floor cleaning device)
3 Floor cleaning pad (cleaning pad)
12 pad base
14 hook-and-loop fastener 15 pad piece
16 Guide plate
37 outer periphery
38 Inner circumference
40 Both ends
43 Guide section

Claims (8)

A floor surface cleaning pad rotatably provided in a floor surface cleaning device for cleaning the floor surface,
An annular pad base having different outer diameters, which is provided so as to face the floor surface and is selectively used according to the type of the floor surface cleaning device,
A plurality of pad pieces which are detachably attached to the floor side surface of the pad base and are provided along the circumferential direction, and pad pieces having the same shape and the same size regardless of the outer diameter of the pad base,
Each pad piece has an arcuate outer peripheral portion that is curved on the inner side of the outer diameter portion of the pad base having the smallest outer diameter and an inner peripheral portion that is curved on the outer side of the inner diameter portion of the pad base having the smallest outer diameter. A floor cleaning pad, characterized in that it is formed.   The floor cleaning pad according to claim 1, wherein the outer peripheral portion and the inner peripheral portion of each pad piece are formed by arcs having substantially the same diameter.   The outer peripheral portion of the pad piece is curved corresponding to the outer diameter portion of the pad base having the smallest outer diameter, and both end portions of the pad piece are in contact with the end portions of adjacent pad pieces. The floor cleaning pad according to claim 1 or 2, wherein the floor cleaning pad is attached to a table.   A guide plate that is thinner than the pad piece is provided on the floor side surface of the pad base, and the guide plate includes an inner peripheral portion of the pad piece and an end on at least the front end side in the rotational direction of the pad piece. The floor surface cleaning pad according to claim 1, wherein a guide portion that contacts the portion is formed.   The floor cleaning pad according to claim 4, wherein the guide plate is formed so as to support the pad piece in a posture inclined inward in the rotation direction.   The floor cleaning pad according to claim 5, wherein the guide plate is formed so that an inner inclination angle of the pad piece increases as an outer diameter of the pad base increases.   The floor cleaning pad according to any one of claims 1 to 6, wherein the pad base and each pad piece are joined via a hook-and-loop fastener. The floor cleaning pad according to any one of claims 4 to 6, wherein the pad base and the guide plate are joined via a hook-and-loop fastener.

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