JP5390989B2 - Cleaning sheet - Google Patents

Description

  The present invention relates to a cleaning sheet.

  Various cleaning sheets have been proposed as cleaning tools for removing dust and dirt adhering to furniture such as chests, interior walls, sills, floors and windows of buildings.

  Patent Document 1 proposes a cleaning sheet in which a number of cuts are provided in a single nonwoven fabric sheet. According to this cleaning sheet, dust or the like of the object to be cleaned is wiped off by capturing dust or dirt in the cut provided in the nonwoven fabric sheet surface.

Japanese Utility Model Publication No. 3-65548

  When the cleaning sheet of Patent Document 1 is attached to a pedestal of a mop and used for cleaning a floor surface or the like in the form of a cleaning tool, the cleaning sheet is pressed against a surface to be cleaned such as a floor surface. At this time, a strong force is applied to the single nonwoven fabric sheet constituting the cleaning sheet from the pedestal against the sheet surface, and dust and dirt are captured on the cleaning surface of the cleaning sheet.

  However, dust and dust collected at the boundary position and corner position between the wall and the floor surface are unlikely to contact the cleaning surface of the cleaning sheet. For this reason, the cleaning sheet of Patent Document 1 has a problem that dust and dust at such corner positions cannot be efficiently wiped off.

  In view of the above problems, an object of the present invention is to provide a cleaning sheet capable of sufficiently wiping off dust and dirt accumulated at a boundary position and a corner position between a wall and a floor surface.

The present invention is (1) a cleaning sheet used by being attached to a base of a cleaning tool,
An attachment portion for locking the cleaning sheet to the base, and a cleaning portion;
The cleaning unit includes a cleaning unit body that faces the bottom surface of the pedestal when the cleaning sheet is attached to the pedestal, and an ear that projects outward from the cleaning unit body.
The tip part of the ear part is located outside the side edge part of the cleaning part main body in a plan view of the cleaning sheet ,
The ear portion is formed of a laminated structure formed by overlapping a plurality of strip-shaped pieces formed in a strip shape and having different widths from each other,
The laminated structure is formed by overlapping a plurality of strips so as to increase in width from a position close to the cleaning unit main body to a position far from the cleaning unit main body, and in the plan view of the cleaning sheet, A plurality of strips are arranged with the position of the edge in the in-plane direction of the cleaning unit main body being aligned,
The ear portion forms a fixed end portion at a joint portion formed by joining the laminated structure and the cleaning portion main body along the side edge portion of the cleaning portion main body at the side edge of the strip-shaped piece aligned in position. A cleaning sheet that protrudes from the fixed end toward the tip toward the outside of the cleaning unit body ,
(2) A cleaning sheet attached to the base of the cleaning tool,
An attachment portion for locking the cleaning sheet to the base, and a cleaning portion;
The cleaning unit includes a cleaning unit body that faces the bottom surface of the pedestal when the cleaning sheet is attached to the pedestal, and an ear that projects outward from the cleaning unit body.
The tip of the ear is located on the outside of the side edge of the cleaning unit body in plan view of the cleaning sheet,
The ear portion has two surface portion forming portions facing each other and a connection portion that connects the surface portion forming portions to each other at one side edge and is adhesive to one surface of the two inner surfaces facing the surface portion forming portion. It consists of a small cleaning piece with the other side as a peelable surface, and the adhesive surface is farther from the cleaning portion body than the peelable surface while the connecting portion is directed in the in-plane direction of the cleaning portion body. A cleaning sheet, wherein the cleaning piece is formed by joining the cleaning piece to the cleaning unit main body so as to be positioned;
( 3 ) A cleaning sheet used by being attached to the base of the cleaning tool,
An attachment portion for locking the cleaning sheet to the base, and a cleaning portion;
The cleaning unit includes a cleaning unit body that faces the bottom surface of the pedestal when the cleaning sheet is attached to the pedestal, and an ear that projects outward from the cleaning unit body.
The tip of the ear is located on the outside of the side edge of the cleaning unit body in plan view of the cleaning sheet,
One of the cleaning unit and the mounting portion by joining the base end portions facing the該襞portion and the ear portion with the sheet material partially bent into a U-shape to form the fold portion is formed, it The gist is a cleaning sheet characterized by the above.

  According to this invention, the ear | edge part is formed in the cleaning sheet attached to the base of a cleaning tool, and the ear | edge part has protruded toward the outer side direction of the cleaning part main body from the side edge of the cleaning part main body. As a result, the tip of the ear is positioned on the outside of the bottom surface of the pedestal, and the tip of the ear can be fitted well to the corner position such as the boundary between the wall and the floor. Dust and dust accumulated at the position can be efficiently wiped with the ears of the cleaning sheet.

It is a schematic perspective view which shows the cleaning tool which attaches one of the Examples of the cleaning sheet in the 1st Embodiment of this invention to a base. (A) It is a schematic plan view which shows 1 Example of the cleaning sheet in the 1st Embodiment of this invention. (B) It is an AA line schematic sectional drawing of Fig.2 (a). It is a schematic sectional drawing for demonstrating other 1 Example of the cleaning sheet in the 1st Embodiment of this invention. (A) It is a schematic sectional drawing for demonstrating 1 Example of the cleaning sheet in the 2nd Embodiment of this invention. (B) It is a BB schematic sectional drawing of Fig.4 (a). (A) It is a schematic sectional drawing for demonstrating 1 Example of the cleaning sheet in the 3rd Embodiment of this invention. (B) It is CC sectional schematic sectional drawing of Fig.5 (a). (A) It is a schematic sectional drawing for demonstrating other 1 Example of the cleaning sheet in the 3rd Embodiment of this invention. (B) It is a DD sectional schematic sectional drawing of Fig.6 (a). (A) It is a schematic sectional drawing for demonstrating 1 Example of the cleaning sheet in the 4th Embodiment of this invention. (B) It is the EE schematic sectional drawing of Fig.7 (a). It is a schematic diagram for demonstrating typically the state which the cleaning tool which attached the cleaning sheet of this invention approached the boundary position of a floor surface and a wall surface. (A) It is a schematic perspective view for demonstrating the state by which the cut was added to the strip | belt-shaped piece of the cleaning sheet in the 1st Embodiment of this invention. (B) It is a schematic perspective view for demonstrating the state by which the cut was added to the cylindrical piece of the cleaning sheet in the 3rd Embodiment of this invention. (A) It is a schematic sectional drawing for demonstrating 1 Example of the cleaning sheet in the 5th Embodiment of this invention. (B) It is a schematic sectional drawing for demonstrating other 1 Example of the cleaning sheet in the 5th Embodiment of this invention.

<First Embodiment>
As shown in FIG. 1, the cleaning sheet 1 according to the first embodiment of the present invention is used by being attached to a base 70 of a cleaning tool 75 having a handle 72. As shown in FIGS. 2 (a) and 2 (b), the cleaning sheet 1 has an attachment portion 3 (3a, 3b) for locking the cleaning sheet 1 to a pedestal 70, and a cleaning portion 2. Become. The cleaning unit 2 is a part that exhibits a function of entwining dust and dust during cleaning in the cleaning sheet 1, and includes a cleaning unit body 4 and ears 5 (5a, 5b).

(Mounting part 3)
The attachment portion 3 is formed outside the cleaning portion main body 4 in plan view, and is formed outside the joint portion 8 between the cleaning portion main body 4 and the ear portion 5.

  In the example of the cleaning sheet 1 shown in FIGS. 1, 2 (a) and 2 (b), the attachment portion 3 is formed integrally with the cleaning portion main body 4, and has two locations (attachment portions) so as to sandwich the cleaning portion main body 4. 3a, 3b). Specifically, the attachment portion 3 is formed integrally with the cleaning portion main body 4 by a sheet material 10 to be described later. That is, in one sheet material 10, a portion specified by a predetermined region (region corresponding to a portion facing the pedestal 70) is defined as the cleaning unit main body 4, and a portion outside the cleaning unit main body 4 is defined as the attachment unit 3. There is no.

  In addition, as shown in FIG. 3, the attaching part 3 may be formed with the member different from the cleaning part main body 4. As shown in FIG. In this case, as the “member separate from the cleaning unit main body 4”, a sheet (attachment unit sheet 11) can be used. And the attachment part sheet | seat 11 is a predetermined position with respect to the sheet | seat material 10 for forming the cleaning part main body 4 (The position where it becomes the side edge part 13 of the cleaning part main body 4 in the sheet | seat material 10) ). At this time, the portion of the attachment portion sheet 11 that exists in the outer side direction of the cleaning portion main body 4 than the joint portion (joint portion 8) between the attachment portion sheet 11 and the sheet material 10 forms the attachment portion 3. As the material for the attachment portion sheet 11, the same material as the sheet material 10 for constituting the cleaning portion main body 4 can be used.

  In addition, the joining method of the above-described attachment portion sheet 11 and the sheet material 10 is the same method as the method of joining the ear member 12 constituting the later-described ear portion 5 to the sheet material 10, for example, by heat sealing. A joining method, a joining method using an adhesive, or the like can be used as appropriate.

(Cleaning part 2)
The cleaning unit 2 includes a cleaning unit main body 4 and ears 5.

(Cleaning unit body 4)
The cleaning unit main body 4 is a part of the cleaning sheet 1 that is defined as a part that faces the bottom surface 80 of the pedestal 70 when the cleaning sheet 1 is attached to the pedestal 70 to obtain the cleaning tool 75.

  The cleaning unit body 4 is formed from a sheet material 10. The sheet material 10 is not limited to a single layer, and may be configured to have a laminated structure of two or more layers formed by folding a single sheet, or a plurality of sheets. It may be configured to have a stacked layer structure. The sheet material 10 may be composed of one type of material or may be composed of a plurality of types of materials. Further, the sheet material 10 may be formed by dividing the surface into predetermined regions and made of different types of materials for the divided regions, and the color types may be different for the divided regions. It may be what you are doing.

  The sheet material 10 is not particularly limited as long as it can exhibit a function of entwining dust or dust during cleaning, and for example, paper, woven fabric, a sheet made of synthetic resin, a nonwoven fabric, or the like can be used as a material. Since the nonwoven fabric is superior in lightness, strength, durability, and adhesiveness compared to the other materials mentioned above, the sheet material 10 is preferably a nonwoven fabric.

  When the sheet material 10 forming the cleaning unit body 4 is a nonwoven fabric, a spunlace nonwoven fabric, a spunbond nonwoven fabric, a thermal bond nonwoven fabric, an air-through nonwoven fabric, a point bond nonwoven fabric, or the like can be used as the nonwoven fabric. As the fibers constituting such a nonwoven fabric, natural fibers, synthetic fibers, composite fibers and the like can be used.

  From the viewpoint of facilitating entanglement of dust and dirt with the cleaning unit main body 4 during cleaning using the cleaning tool attached with the cleaning sheet 1, the sheet material 10 constituting the cleaning unit main body 4 is made of a material having excellent stretchability. Are preferably used. Then, if importance is attached to this viewpoint, the sheet material 10 is preferably a spunlace nonwoven fabric.

  From the viewpoint of firmly fixing the cleaning sheet 1 to a mop pedestal or the like when the cleaning sheet 1 is attached to the pedestal, it is preferable that the sheet material 10 is made of a material having less stretchability. Then, if this viewpoint is regarded as important, the sheet material 10 is preferably a spunbond nonwoven fabric or an air-through nonwoven fabric.

  Further, the cleaning unit main body may be formed from a sheet material 10 formed by superimposing a sheet having excellent elasticity (first sheet) and a sheet having low elasticity (second sheet). In this case, the cleaning unit body 4 can be attached to the base so that the first sheet faces the base of the cleaning tool and the second sheet faces the surface to be cleaned. The cleaning unit body 4 can be tightly entangled with dust and dirt while the cleaning sheet 1 is firmly fixed to the pedestal.

  In addition, although the planar shape of the cleaning part main body 4 shown in the example of FIG. 1 was a rectangular shape, these shapes are not limited to a rectangular shape. The cleaning unit main body 4 may be appropriately processed into a desired shape such as a polygonal or elliptical planar shape or a planar contour shape formed of a closed curve. The same applies to the shapes of the attachment portion 2 and the ear portion 5.

  The cleaning unit main body 4 may have a large number of cuts and small holes (not shown). The cut is formed by cutting the sheet material 10 constituting the cleaning unit body 4 into a predetermined shape such as a straight line in the thickness direction to form a cut in the sheet material. In this case, the cut makes a break. The small hole can be specifically formed by, for example, making a hole penetrating the sheet material 10. The shape of the small hole is not particularly limited, such as a polygonal shape or a circular shape. However, from the viewpoint of efficiently entangling dust and dirt by opening and closing the gap of the small hole, the small hole is preferably an elongated shape.

  The cleaning unit body 4 may have a large number of fine irregularities formed on its surface (not shown). The unevenness may be formed at least on a surface (non-opposing surface) that does not face the pedestal when the cleaning sheet 1 is attached to the pedestal among the surfaces of the cleaning unit main body 4, but faces the pedestal. It may also be formed on the surface (opposing surface). That is, the fine unevenness may be formed on both surfaces of the cleaning unit main body 4. Further, when the unevenness is formed on both surfaces of the cleaning unit main body 4, the portion corresponding to the position directly behind the recess on the one surface on the other surface is convex with respect to the portion (recess) formed in the concave shape on the one surface. It may be a portion (convex portion) formed on the surface. Such unevenness can be specifically realized by embossing the sheet material 10 constituting the cleaning unit main body 4.

(Ear part 5)
The ear portion 5 is formed so as to protrude outward from the cleaning portion main body 4 in a plan view of the cleaning sheet 1. The ear 5 has a fixed end 6 at a joint 8 formed in a region including the side edge 13 of the cleaning unit main body 4. Moreover, in the ear | edge part 5, the front-end | tip part 7 is located in the outer side of the side edge part 13 of the cleaning part main body 4. FIG. The ear part 5 is formed so as to extend along the boundary part between the cleaning part main body 4 and the attachment part 3 (in the example of FIG. 2, the ear parts 5a and 5b). In addition, the ear | edge parts 5a and 5b are arrange | positioned toward the out-of-plane direction of the cleaning part main body 4, aligning a longitudinal direction mutually.

  In the present specification, the “outward direction of the cleaning unit body 4” means “in the plane in which the z axis is assumed in the thickness direction of the sheet material 10 forming the cleaning unit body 4 and the z axis is a normal line. Assuming an x-axis and a y-axis that are orthogonal to each other and assuming a three-dimensional space stretched by the three axes x, y, and z with the origin at the center of the sheet material 10, at least the z-axis is a normal line. The “outside direction of the cleaning plane (xy plane)” indicates “the outside of the cleaning unit body 4”, and at least the side edge of the cleaning unit body 4 when the cleaning unit body 4 is viewed from the z-axis direction (in plan view). The outer side than the part 13 shall be shown. In particular, in FIG. 1, the outer side direction (out-of-plane direction) of the cleaning unit main body 4 indicates the outer direction when the inner and outer directions are assumed in the AB direction. And the "outside direction of the cleaning part main body" corresponds to the outside direction when the inside and outside directions are assumed as the direction (cleaning direction) in which the cleaning tool is moved during cleaning using the cleaning tool. In addition, about the inner side direction (in-plane direction) of the cleaning part main body 4, the inner side direction (direction which goes to the center of the cleaning part main body 4) at the time of assuming the inner / outer direction to AB direction of FIG.

  In the cleaning sheet 1 shown in FIG. 1, FIG. 2 (a) and FIG. 2 (b), the ear portion 5 is a “member for forming the ear portion 5 (for ear portion) as a separate member from the cleaning portion main body 4. Member 12) ". The member 12 for ear | edge part is suitably selected from the materials which can be used as the cleaning part main body 4, such as a nonwoven fabric. The material of the ear member 12 may be the same as or different from the material of the sheet material 10 constituting the cleaning unit main body 4. The material of the ear member 12 is particularly preferably made of a nonwoven fabric in that it can be easily joined to the sheet material 10. As the nonwoven fabric, a spunlace nonwoven fabric, a spunbond nonwoven fabric, a thermal bond nonwoven fabric, an air-through nonwoven fabric, a point bond nonwoven fabric and the like can be used. When the ear member 12 is made of a nonwoven fabric, the sheet material 10 constituting the cleaning unit body 4 is also preferably a nonwoven fabric. In this case, the material of the nonwoven fabric constituting the ear member 12 is the same as the sheet material 10. It is preferable that it is material.

  Specifically, in the example of FIG. 2, the ear member 12 is a strip piece 21. As the strip-shaped piece 21, a strip-shaped sheet can be used.

  Moreover, in the example of FIG. 2, the ear | edge part 5 is formed as follows. One strip 21 is arranged such that one side edge in the longitudinal direction is located slightly inside the side edge 13 of the cleaning unit body 4 and is along the side edge 13. At this time, in the plan view of the cleaning sheet 1, the other side edge of the strip-shaped piece 21 on the outer side of the cleaning section main body 4 (the other side with respect to one side edge of the strip-shaped piece 21 arranged along the side edge portion 13. The strips 21 are arranged so that the edge) is located. The strip 21 and the cleaning unit body 4 partially overlap each other along the side edge 13 of the cleaning unit body 4. Next, the strip 21 is joined to the cleaning unit main body 4 at the overlapping portion to form the joint 8. And the band-like piece 21 makes the ear | edge part 5 by such joining. The ear part 5 uses the side edge of the band-like piece 21 on which the joint portion 8 is formed as the fixed end part 6 of the ear part 5 and the other side edge of the band-like piece 21 as the ear part. 5 is a front end portion 7 (free end portion). The tip 7 of the ear 5 is located outside the cleaning unit main body 4. In addition, in the example of the cleaning sheet 1 shown in FIG. 2A, the joint portion 8 has a linear shape, but the shape of the joint portion 8 is not limited to this, and is curved, dotted, or dotted. A suitable shape such as a band shape or a wave shape may be employed. Moreover, the width | variety of the junction part 8 can be defined suitably.

  As a method of joining the strip 21 to the cleaning unit main body 4 to form the joint 8, a known joining method such as a joining method using heat sealing, a joining method using an adhesive, or a joining method using an ultrasonic seal is appropriately used. it can.

  The joining method using the heat seal is a method of “heating the part to join the strip 21 and the cleaning unit body 4 to fuse the strip 21 and the cleaning unit body 4”. It is realizable using a more well-known heat sealing machine.

  In the joining method using the ultrasonic seal, the strip 21 and the cleaning unit body 4 are instantaneously melted by applying a fine ultrasonic vibration and pressure to a portion where the strip 21 and the cleaning unit body 4 are to be joined. However, it is a method of joining the two, and can be realized by using an ultrasonic sealing machine that has been publicly known. Specifically, the ultrasonic sealing machine generates strong frictional heat by applying fine ultrasonic vibration and pressure to the strip 21 and the cleaning unit main body 4 at a portion where the strip 21 and the cleaning unit main body 4 are to be joined. Let And the strip | belt-shaped piece 21 and the cleaning part main body 4 are fuse | melted partially, and it couple | bonds together.

  Moreover, when the strip | belt piece 21 and the cleaning part main body 4 are joined by adhesion | attachment of the strip | belt piece 21 and the cleaning part main body 4 using an adhesive agent, as an adhesive agent, a two-component curable adhesive, a thermoplastic resin type | system | group adhesive is used. Agents, elastomer adhesives, thermosetting resin adhesives, instantaneous adhesives, hot melt adhesives, and the like can be used. The adhesive is preferably a hot-melt adhesive from the viewpoint that a rapid bonding operation by heating / cooling is possible. Moreover, when both the strip | belt-shaped sheet | seat which comprises the strip | belt-shaped piece 21 and the sheet | seat material which comprises the cleaning part main body 4 are nonwoven fabrics, as an adhesive agent, it is a solution type from a viewpoint of the permeability | transmittance inside of the nonwoven fabric of an adhesive agent. Or, an emulsion type thermoplastic resin adhesive or elastomer adhesive is preferable. Of the sheet material and the belt-like sheet, the surface to which the adhesive is applied in advance may be either of these or both.

  In the cleaning portion 2 of the cleaning sheet 1, in the example of FIGS. 1 and 2, the ear portion 5 is a strip piece 21 with respect to both of the pair of side edge portions 13 and 13 facing each other of the rectangular cleaning portion main body 4. , 21 are provided at a plurality of locations with respect to the cleaning portion 2 (a total of two locations (ear portions 5a, 5b) are installed in the cleaning portion 2). However, in the cleaning part 2, the arrangement | positioning location of the ear | edge part 5 is not limited to two places, The ear | edge part 5 may be provided in one place in the cleaning part 2, and may be provided in three or more places. . Furthermore, in the cleaning part 2, the ear part 5 is not only provided on one side of the cleaning part main body 4, but also on both sides of the cleaning part main body 4 (when the cleaning sheet 1 is attached to the base 70 to obtain the cleaning tool 75. It may be provided on a surface facing the base 70 and a surface not facing the base 70).

  The ear part 5 may form a large number of cuts in the direction from the tip part 7 toward the fixed end part 6 (in FIG. 1, the direction from the outside toward the inside in the AB direction) (FIG. 9 (a). )). Fig.9 (a) shows the perspective view about the case where the ear | edge part 5 is cut in the example of the cleaning sheet 1 shown to Fig.2 (a).

  The strip 21 may be cut in the direction from the side edge forming the distal end portion 7 of the ear portion 5 toward the side edge forming the fixed end portion 6 of the ear portion 5. At this time, the strip-shaped piece 21 is formed with a portion having a strip shape (the strip portion 23) by the above-described cutting. In this case, the ear portion 5 is composed of a strip-shaped piece 21 having a large number of strip portions 23.

  In the cleaning sheet 1 described above, the ear portion 5 is formed of the strip-shaped piece 21 that is separate from the sheet material 10 constituting the cleaning portion main body 4, but is not limited thereto. The ear | edge part 5 and the cleaning part main body 4 may be integrally formed in the sheet | seat material 10 (FIG. 3). When the ear member 5 and the cleaning unit body 4 are formed integrally with the sheet material 10, the ear member 5 is specifically formed as follows.

  The sheet material 10 has a boundary position (position Q) between a portion planned to become the cleaning portion main body 4 (cleaning portion main body planned portion) and a portion planned to become the ear portion 5 (ear portion planned portion). ) To define a cleaning unit main body planned part and an ear part planned part. Then, a member for forming the attachment portion 3 (attachment portion sheet 11) is joined to “position Q” of the sheet material 10, whereby the ear portion planned portion of the sheet material 10 becomes the ear portion 5.

<Second Embodiment>
The ear | edge part 5 in the cleaning sheet 1 of 1st Embodiment may be comprised from the several strip | belt-shaped piece 21 (2nd Embodiment) (FIG. 4 (a) (b)).

  The cleaning sheet 1 of the second embodiment has the same configuration as the cleaning sheet 1 of the first embodiment, except for the configuration of the ear portion 5.

  In the cleaning sheet 1 of the second embodiment, the ear member 12 constituting the ear part 5 is a laminated structure in which a plurality of belt-like pieces 21 are stacked in the thickness direction.

  Specifically, in the example of the cleaning sheet 1 in FIG. 4, the ear portion 5 is a laminated structure including three strips 21 a, 21 b, and 21 c and is configured as follows. First, the three strips 21 a, 21 b, and 21 c are arranged on the cleaning unit main body 4. Of these side strips 21a, 21b, 21c, of the side edges, the side edges (inner side edges) located in the cleaning section body 4 inner side direction (in-plane direction) in the plan view of the cleaning sheet 1 are mutually connected. While aligning, they overlap each other to form a laminated structure. Further, the strips 21 a, 21 b, 21 c have inner side edges on the side edge 13 of the cleaning unit body 4 slightly inside the side edge 13 of the cleaning unit body 4 in plan view of the cleaning sheet 1. It arrange | positions on the cleaning part main body 4 so that it may follow. As described above, the laminated structure overlapping the three layers formed by the strips 21a, 21b, and 21c corresponds to the ear member 12. Then, the laminated structure is joined to the cleaning unit main body 4. At this time, of the strips 21 constituting the laminated structure, the strip 21a closest to the cleaning unit body 4 is directly joined to the cleaning unit body 4, and the strips 21a and the strips are joined together. The members 21b and the members 21b and 21c are also joined to each other.

  The joining of the sheet material 10 and the strips 21a, 21b, 21c can be specifically formed by joining them together. Specifically, the inner side edges of the strips 21a, 21b, and 21c are sequentially overlapped while being aligned with a predetermined position of the sheet material 10, and the sheet material 10 is formed in a region including the inner side edges of the strips 21a, 21b, and 21c. And the strips 21a, 21b, 21c are joined and integrated. The joint-integrated portion forms a joint 8.

  By forming the joint portion 8 in this manner, the ear portion 5 is formed. At this time, the inner edge (the side edge located on the in-plane direction side of the sheet material 10) of the joint portion 8 is the fixed end portion 6 of the ear portion 5, and the ear portion forming member 12 that is a laminated structure The outer side edge (the outer edge of the belt-like piece 21 c (the side edge located on the out-of-plane direction side of the sheet material 10)) is the tip 7 of the ear 5.

  As a method for forming the joining portion 8 in the cleaning sheet 1 of the second embodiment, heat is used in the same manner as the joining method that can be used when joining the strip 21 and the sheet material 10 in the cleaning sheet of the first embodiment. A joining method using a seal, a joining method using an adhesive, a joining method using an ultrasonic seal, and the like can be used.

  The joining of the sheet material 10 and the strips 21a, 21b, 21c (joining of the laminated structure and the sheet body 10) is performed after the sheet material 10 and the strips 21a, 21b, 21c are overlapped as described above. It may be carried out sequentially each time one strip is stacked.

  The plurality of strip-like pieces 21a, 21b, and 21c constituting the ear part 5 preferably have different widths in the lateral direction. In that case, about the strip-shaped piece 21 which comprises the ear | edge part 5, the outer side edge of the strip-shaped piece 21 is located in the outer side of the cleaning-part main body 4 so that the strip-shaped piece 21 provided in the position away from the cleaning-part main body 4 is. Is preferred. Such an ear | edge part 5 is formed as follows. First, the strips 21a, 21b, and 21c are sequentially stacked on the cleaning unit main body 4 in order from the narrowest width while the side edges (inner side edges) on the in-plane direction side of the cleaning unit main body 4 are aligned. It is. At this time, the narrower strip-shaped piece 21 is arranged at a position closer to the cleaning unit main body 4. Thereby, the width of the overlapping strip-shaped pieces 21 in the short direction becomes wider as the strip-shaped piece 21 provided at a position (distant position) away from the cleaning-unit main body 4 in the thickness direction of the cleaning section main body 4 is increased. The outer side edge of the belt-like piece 21 comes to be positioned at the outer side.

  Specifically, in the example of the cleaning sheet 1 in FIG. 4, the width relationship in the short direction of the strips 21 a, 21 b, 21 c is (width of the strip 21 a) <(width of the strip 21 b) <(strip The strips 21a, 21b, 21c are positioned slightly inside the side edge of the cleaning unit body 4 while aligning the positions of the inner side edges with each other in plan view of the cleaning sheet 1. As described above, they are disposed on the cleaning unit body 4 so as to overlap each other along the side edge 13 of the cleaning unit body 4. At this time, the overlapping order of the strips 21 a, 21 b, 21 c provided on the cleaning sheet 1 is far from the closest position to the cleaning unit body 4 in the thickness direction of the cleaning unit body 4. The strips 21a, 21b, and 21c are formed in the order of heading toward the center.

  According to the cleaning sheet 1, the ear portion 5 is closer to the outer side edge of the strip-shaped piece 21 (band-shaped piece 21 c) arranged at a position away from the cleaning unit body 4 than the side edge portion 13 of the cleaning unit body 4. It will have a structure located outside. When cleaning is performed using the cleaning tool 75 in which such a cleaning sheet 1 is attached to the base 70, the tip portion 7 of the ear portion 5 has corners such as the four corner positions of the floor of the house or the boundary position between the floor and the wall. It becomes easy to fit well in the corner portion, and dust and dirt in the corner portion can be easily scraped off by the ear portion 5.

<Third Embodiment>
In the cleaning sheet 1 of the first embodiment, the ear portion 5 may be formed of a cylindrical piece 22 (third embodiment). That is, in the cleaning sheet 1 of the third embodiment, the ear part member 12 constituting the ear part 5 is the cylindrical piece 22. As the cylindrical piece 22, one formed by molding a predetermined material into a cylindrical shape can be used. In addition, the cylindrical piece 22 may be a cylindrical sheet made of a predetermined material (FIGS. 5A and 5B). Examples of the material constituting the cylindrical piece 22 include the material constituting the strip 21. The cleaning sheet 1 of the third embodiment has the same configuration as the cleaning sheet 1 of the first embodiment with respect to the configuration other than the ear portion 5.

  The cylindrical piece 22 is joined to a predetermined region including the side edge 13 of the cleaning unit body 4 along the side edge 13 of the cleaning unit body 4. The joined portion between the cylindrical piece 22 and the cleaning unit main body 4 forms the joined portion 8. Thereby, the cylindrical piece 22 forms the ear part 5. At this time, the side edge on the in-plane direction side of the cleaning portion main body 4 among the side edges of the joint portion 8 forms the fixed end portion 6 of the ear portion 5. In addition, the cylindrical piece 22 projects to the outside of the cleaning unit main body 4 in a plan view, and the portion of the projecting portion located on the outermost side of the cleaning unit main body 4 forms the tip portion 7 of the ear portion 5. .

  In this cleaning sheet 1, the cylindrical piece 22 may be cut in a direction from the outer edge of the cylindrical piece 22 toward the inner edge (FIG. 9B). FIG.9 (b) shows the top view about the example when the cylindrical piece 22 in the cleaning sheet 1 shown to Fig.5 (a) is notched. In this case, a large number of ring-shaped portions 24 are formed in the cylindrical piece 22 by the above-described cutting.

  In the cleaning sheet 1 of the third embodiment described above, the ear portion 5 is composed of the cylindrical piece 22 that is separate from the sheet material 10 that constitutes the cleaning portion main body 4, but the third embodiment. The cleaning sheet 1 is not limited to this, and the cleaning part main body 4 and the ear part 5 may be integrally formed by the sheet material 10. When the ear | edge part 5 is integrally formed with the cleaning part main body 4 in the sheet | seat material 10, the ear | edge part 5 forms a part of sheet | seat material 10 as follows (FIG. 6 (a)). (B)).

  The sheet material 10 is divided into a cleaning portion planned portion and an ear portion planned portion with a predetermined position (a position where the joining portion 8 is scheduled to be formed) as a boundary. In the sheet body 10, the outer edge of the ear portion planned portion (the outer edge of the sheet material 10) becomes the side edge of the cleaning portion planned portion (the side edge portion 13 of the cleaning unit main body 4) in the in-plane direction of the sheet material 10. It is folded back in a U shape up to a position slightly inward from the portion that is planned to be (position K determined as a position inward in the in-plane direction of the sheet 10) corresponding to the width of the joint portion 8. The folded portion constitutes a portion having a cylindrical structure (cylindrical portion forming portion). At this time, the tip of the cylindrical portion forming portion (the outer edge of the ear portion planned portion) is still a free end. Next, the free end portion of the cylindrical portion forming portion is superimposed on the position K of the surface of the sheet 10, and the free end portion of the cylindrical portion forming portion (the portion forming the outer edge of the sheet 10) is the sheet 10. It is joined to the surface of the sheet 10 at the surface position K. The joint portion 8 is formed by joining the tote members 10, the tubular portion forming portion forms the tubular portion 25, and the ear portion 5 including the tubular portion 25 is formed. The ear portion 5 forms a side edge in the in-plane direction of the sheet material 10 among the edges of the joint portion 8 between the sheet materials 10 as the fixed end portion 6, and extends from the fixed end 6 toward the outer side of the sheet material 10. Overhangs. The front end portion of the cleaning sheet 1 that projects in the outer direction of the sheet material 10 in the plan view forms the front end portion 7 of the ear portion 5. Further, the side edge in the out-of-plane direction of the sheet material 10 among the end edges of the joint portion 8 forms the side edge portion 13 of the cleaning piece body 4. Thus, by forming the joint portion 8, both the cleaning portion main body 4 and the ear portion 5 are formed, and the cleaning portion 2 having the cleaning portion main body 4 and the ear portion 5 is formed.

  Moreover, the cleaning sheet 1 of 3rd Embodiment is formed as follows. That is, using the cleaning part 2 formed as described above, the attachment sheet 3 is further joined to the position of the joint part 8 in the cleaning part 2 to form the attachment part 3, whereby the cleaning sheet 1 is obtained. . At this time, the surface of the cleaning part 2 to which the attachment part sheet 11 is attached is not particularly limited. That is, the attachment portion sheet 11 may be joined to the surface (exposed surface) of the surface of the cleaning portion 2 where the outer edge of the sheet material 10 that is folded back when forming the cleaning portion 2 is exposed. Further, the attachment portion sheet 11 may be joined to a non-exposed surface which is a surface that is directly behind the exposed surface. In the cleaning sheet 1 of FIGS. 6A and 6B, the attachment portion sheet 11 is bonded to the non-exposed surface of the surface of the cleaning portion 2.

<Fourth Embodiment>
In the cleaning sheet 1 of the first embodiment, the ear portion 5 may be formed of a small cleaning piece (fourth embodiment). At this time, the ear member 12 for constituting the ear part 5 is the cleaning piece 31. The cleaning piece 31 is formed by forming two surface portion forming portions 32 and 33 and a connecting portion 34 for connecting the surface portion forming portions 32 and 33 to each other at one side edge (FIGS. 7A and 7B). ).

  The surface portion forming portions 32 and 33 are each formed in a band shape, and the connection portion 34 is one of the two side edge portions facing each other along the longitudinal direction of the surface portion forming portions 32 and 33 (the surface portion forming portion 32. , 33 are connected to the surface portion forming portions 32, 33 at the side edges facing each other). The cleaning piece 31 has a V-shaped (cross-sectional V-shaped) cross-sectional shape parallel to a plane whose normal is the longitudinal direction of the surface portion forming portions 32 and 33.

  In the cleaning piece 31, the connecting portion 34 elastically connects the two surface portion forming portions 32 and 33. That is, in the cleaning piece 31, a restoring force is generated in the surface portion forming portions 32 and 33 with respect to a force that tries to bring the tips of the surface portion forming portions 32 and 33 away from each other.

  The cleaning piece 31 is arranged on the cleaning unit body 4 with the connecting portion 34 directed in the in-plane direction of the cleaning unit body 4. The cleaning piece 31 is arranged on the cleaning unit body 4 while its side edge is positioned slightly inside the side edge 13 of the cleaning unit body 4 (inside the width of the joint 8). The cleaning piece 31 has its connecting portion 34 positioned on the sweeper main body 4 and is joined to the cleaning portion main body 4 by the connecting portion 34. A joining portion between the cleaning small piece 31 and the cleaning portion main body 4 forms a joining portion 8. The clean joint portion 8 is specifically formed by joining the cleaning portion main body 4 and the cleaning piece 31 by heat sealing or an adhesive (for example, a hot-melt adhesive).

  The cleaning piece 31 is a surface on one side of the two inner surfaces facing each other and located far from the cleaning unit main body 4 after the formation of the joint portion 8, and becomes an adhesive surface 33 a having adhesiveness, The surface on the other side, which is located in the vicinity of the cleaning unit body 4 after the formation of the joint portion 8, is formed as a peelable surface 32 a having peelability.

  The cleaning piece 31 is formed using paper, a film material, a resin material, or the like as appropriate. The cleaning piece 31 is formed by appropriately using a paper or film material coated with a resin material or a paper and / or film material laminated in a plurality of layers. PP (polypropylene), PE (polyethylene), PET (polyethylene terephthalate), or the like can be used as a material constituting the film material or a resin material.

  When the cleaning piece 31 is formed of paper or a film material, it is preferable that a strong material is selected for the paper or film material. When the cleaning piece 31 is formed of a strong material, the cleaning piece 31 is likely to be in a state where the two surface portion forming portions 32 and 33 are elastically connected by the connection portion 34.

  The cleaning piece 31 can be formed as follows, for example. A folded sheet is formed by folding a sheet (sheet for cleaning small pieces) made of paper or a film material into two. The cleaning piece 31 can be formed by forming one of the inner surfaces facing the bent body as the peelable surface 32a and the other as the adhesive surface 33a. At this time, the portion where the peelable surface 32a is formed and the portion where the adhesive surface 33a is formed form surface portion forming portions 32 and 33, respectively. Further, the portion corresponding to the fold of the bent body forms a connection portion 34 in the cleaning piece 31.

  The cleaning piece 31 can also be manufactured by appropriately using a known injection molding method. For example, a molded product is obtained by using a mold corresponding to the shape of the cleaning piece 31, pouring a resin material into the mold, and molding the resin material. At this time, the shape of the molded product corresponds to the shape of the cleaning piece 31. The cleaning piece 31 can be formed by forming one of the two inner surfaces facing each other in the molded product as the peelable surface 32a and the other as the adhesive surface 33a.

  In the cleaning piece 31, the peelable surface 32a and the adhesive surface 33a can be formed as follows. That is, in the bent body or the molded product, the adhesive surface 33a is formed by attaching a release paper or the like to the part where the peelable surface 32a is planned to be formed in accordance with the contour shape of the peelable surface 32a. Can be formed by adhering an adhesive film or the like to the planned portion in accordance with the shape of the adhesive surface 33a. Specifically, for a pressure-sensitive adhesive film having a pressure-sensitive adhesive surface, a commercially available tape is prepared by covering the pressure-sensitive adhesive surface with a release paper, and the release paper and the pressure-sensitive adhesive film are appropriately provided with a peelable surface and a pressure-sensitive adhesive property. What is necessary is just to attach to the predetermined location of the said bending body or molded article, facing the surface which has.

  The peelable surface 32a and the adhesive surface 33a can also be formed as follows. The peelable surface 32a is formed by applying a material (for example, silicon) capable of imparting peelability to a portion where the peelable surface 32a is planned to be formed in a bent body or a molded product. be able to. The adhesive surface 33a is a material (for example, a hot-melt adhesive (national rice flour chemical ( Shanghai) Co., Ltd., product number; 5Q122E, DMC5266), etc.) can be applied.

  According to this cleaning sheet 1, relatively large and heavy dust such as rice grains and sand grains can be adhered to the adhesive surface 33 a of the cleaning piece 31.

  In addition, in this cleaning sheet 1, since the ear | edge part 5 is formed as the above-mentioned cleaning piece 31 as a member for ear | edge parts, it is thought that the cleaning function is exhibited as follows. The floor cleaning mop 75 having the cleaning sheet 1 attached to the pedestal 70 is pressed against the floor surface of the floor during cleaning. At this time, since the peelable surface 32a is formed at the position facing the adhesive surface 33a, the possibility that the surface portion forming portions 32 and 33 stick to each other is suppressed. In addition, the cleaning piece 31 is in a state in which the surface portion forming portion 33 having the adhesive surface 33a is in contact with the floor. When the floor cleaning mop 75 is moved in a predetermined direction at the time of cleaning, dust on the floor surface gets on the adhesive surface 33a and adheres to the surface, and the cleaning piece 31 effectively performs the cleaning function. Demonstrate.

<Fifth Embodiment>
In the cleaning sheets 1 of the first to fourth embodiments described above, at least one of the cleaning unit main body 4, the attachment unit 3, and the ear unit 5 is configured separately. The present invention is not limited to this, and the cleaning sheet 1 is formed by forming the cleaning unit main body 4, the mounting unit 3, and the ears 5 with a single sheet material 10, as shown in FIG. (5th Embodiment).

  The cleaning sheet 1 according to the fifth embodiment is formed as follows.

  A rectangular sheet is prepared as the sheet material 10 and is partially bent into a U-shaped cross section at a predetermined position in the surface of the sheet material 10 to form the collar portion 40. The collar portion 40 is formed to extend so as to cross between two opposite sides of the sheet material 10. In addition, two ridges 40 are formed at a predetermined interval in plan view of the sheet 10, and the two ridges 40 are formed substantially parallel to each other with their longitudinal directions aligned. And the base end parts 41 and 41 which face each other in one collar part 40 are joined, and the junction part 8 is formed. At this time, the ear | edge part 5 is formed in the part of the sheet | seat material 10 from the junction part 8 to the front-end | tip of the collar part 40. FIG. The ear | edge part 5 is formed for every collar part 40. FIG. In the example of FIG. 10, the joint portion is formed at two places on the sheet material 10. And the two ear | edge parts 5 are formed. Moreover, the cleaning part main body 4 is formed in the part determined in the range from one joining part 8 to the other joining part 8 among the parts of the sheet material 10, and outside the joining part 8 among the parts of the sheet material 10. The attachment part 3 is formed in the part (part excluding the cleaning part main body 4 and the ear part 5). In this way, the cleaning sheet 1 which forms the cleaning part main body 4, the attachment part 3, and the ear | edge part 5 with the sheet material 10 of 1 sheet is obtained (FIG. 10 (a)).

  In the example of the cleaning sheet 1 of the fifth embodiment shown in FIG. 10A, the ear portion 5 is formed in a cylindrical shape. In addition, about the cleaning sheet 1 of 5th Embodiment, after forming the junction part 8 in the collar part 40, the ear | edge part 5 may be further cut and formed along the direction where the collar part 40 is extended. In this case, the ear | edge part 5 becomes a structure which consists of the some to-be-cut piece 42 formed in the strip | belt shape by the notch | incision of the collar part 40 (FIG.10 (b)). The plurality of pieces to be cut 42 are fixed to each other at the joint 8.

<Example of cleaning tool using cleaning sheet 1>
The cleaning tool using the cleaning sheet 1 of the present invention is a floor cleaning mop 75. The floor cleaning mop 75 has the cleaning sheet 1 attached to a pedestal 70 with a handle 72 (FIGS. 1 and 8). FIG. 1 is a perspective view showing an example of a floor cleaning mop 75 in which the cleaning sheet 1 of FIG. 2 is attached to a pedestal 70.

  When the cleaning sheet 1 is attached to the pedestal 70, the cleaning sheet 1 is brought into contact with the pedestal 70, the boundary between the attachment portion 3 of the cleaning sheet 1 and the cleaning portion main body 4 is bent, and the attachment portion 3 is attached to the upper surface of the pedestal 70. Wrap. The upper surface of the pedestal 70 is provided with a locking piece 71 projecting upward from the upper surface thereof, near the end in the region of the attachment portion 3 (position closer to the side edge than the central position of the attachment portion 3) 4 A locking structure is formed by the locking pieces 71 and the locking portions 9 on the upper surface of the pedestal 70 at the positions of the locking portions 9 provided in places, and the cleaning sheet 1 is locked to the pedestal 70. Thereby, the cleaning sheet 1 is attached to the base 70, and the mop 75 for floor cleaning is obtained. The locking portion 9 in the cleaning sheet 1 is provided at a position corresponding to a locking position between the cleaning sheet 71 and the locking piece 71. Moreover, in the example of the cleaning sheet 1 used for the cleaning unit 75 of FIG. 1, the locking unit 9 is a cross-shaped cut in plan view, but is not limited to this, as shown in FIGS. Alternatively, a straight cut (FIG. 6) or a small hole (FIG. 7) may be used. The locking portion 9 is appropriately determined by the locking piece 71 in the pedestal 70.

  In addition, when the cleaning sheet 1 is attached to the base 70 and the mop 75 for floor cleaning is obtained, the cleaning sheet 1 is arrange | positioned as follows. That is, the cleaning sheet 1 is attached to the pedestal 70 so that the distal end portion 7 of the ear portion 5 is disposed outside the position of the boundary portion (boundary portion R) between the bottom surface 80 and the side surface 81 of the pedestal 70. ing. However, “outside” in the case of being outside the position of the boundary R indicates the outside in the case where the inward / outward direction is assumed in the in-plane direction of the bottom surface 80.

  When a house or the like is cleaned using a conventional mop, it may be difficult to sufficiently remove dust and dirt at corners such as the boundary between the floor surface and the wall surface of the house. In this regard, at the time of cleaning using the floor cleaning mop 75, as shown in FIG. 8, the distal end portion 7 of the ear portion 5 protruding outward from the boundary portion R of the base 70 is connected to the floor surface 50. Since the dust and dust at the boundary portion P are in contact with the wall portion 51 and scraped off efficiently, it becomes easy to capture the dust and dust at the corners.

  The present invention is useful for use at home as a cleaning sheet for effectively removing dust and dirt.

DESCRIPTION OF SYMBOLS 1 Cleaning sheet 2 Cleaning part 3, 3a, 3b Attachment part 4 Cleaning part main body 5, 5a, 5b Ear part 6 Fixed end part 7 Tip part 8 Joining part 9 Locking part 10 Sheet material 11 Sheet for attachment part 12 Ear part Member 13 Side edge (side edge of cleaning unit body)
21, 21a, 21b, 21c Strip-shaped piece 22 Cylindrical piece 23 Strip part 24 Ring-shaped part 25 Cylindrical part 31 Cleaning piece 50 Floor 51 51 Wall 75 Floor cleaning mop

Claims (3)

A cleaning sheet used by being attached to the base of the cleaning tool,
An attachment portion for locking the cleaning sheet to the base, and a cleaning portion;
The cleaning unit includes a cleaning unit body that faces the bottom surface of the pedestal when the cleaning sheet is attached to the pedestal, and an ear that projects outward from the cleaning unit body.
The tip part of the ear part is located outside the side edge part of the cleaning part main body in a plan view of the cleaning sheet ,
The ear portion is formed of a laminated structure formed by overlapping a plurality of strip-shaped pieces formed in a strip shape and having different widths from each other,
The laminated structure is formed by overlapping a plurality of strips so as to increase in width from a position close to the cleaning unit main body to a position far from the cleaning unit main body, and in the plan view of the cleaning sheet, A plurality of strips are arranged with the position of the edge in the in-plane direction of the cleaning unit main body being aligned,
The ear portion forms a fixed end portion at a joint portion formed by joining the laminated structure and the cleaning portion main body along the side edge portion of the cleaning portion main body at the side edge of the strip-shaped piece aligned in position. The cleaning sheet is characterized by projecting from the fixed end portion toward the distal end portion in the outer direction of the cleaning portion main body . A cleaning sheet used by being attached to the base of the cleaning tool,
An attachment portion for locking the cleaning sheet to the base, and a cleaning portion;
The cleaning unit includes a cleaning unit body that faces the bottom surface of the pedestal when the cleaning sheet is attached to the pedestal, and an ear that projects outward from the cleaning unit body.
The tip of the ear is located on the outside of the side edge of the cleaning unit body in plan view of the cleaning sheet,
The ear portion has two surface portion forming portions facing each other and a connection portion that connects the surface portion forming portions to each other at one side edge and is adhesive to one surface of the two inner surfaces facing the surface portion forming portion. It consists of a small cleaning piece with the other side as a peelable surface, and the adhesive surface is farther from the cleaning portion body than the peelable surface while the connecting portion is directed in the in-plane direction of the cleaning portion body. A cleaning sheet , wherein the cleaning sheet is formed by joining the cleaning piece to the cleaning unit main body so as to be positioned . A cleaning sheet used by being attached to the base of the cleaning tool,
An attachment portion for locking the cleaning sheet to the base, and a cleaning portion;
The cleaning unit includes a cleaning unit body that faces the bottom surface of the pedestal when the cleaning sheet is attached to the pedestal, and an ear that projects outward from the cleaning unit body.
The tip of the ear is located on the outside of the side edge of the cleaning unit body in plan view of the cleaning sheet,
A sheet material is partially bent into a U shape to form a collar part, and the base parts facing the collar part are joined together to form an attachment part, a cleaning part, and an ear part. Cleaning sheet characterized by .

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