Cleaning tool

The cleaning tool efficiently adapts to both flat and curved surfaces by employing a flexible core plate with a hard second plate part, ensuring thorough cleaning by using the flexible end for curved surfaces and the entire section for flat surfaces.

JP2025007736APending Publication Date: 2025-01-17LEC INC
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Patent Information

Application Number
JP2023109334
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-07-03
Publication Date
2025-01-17

AI Technical Summary

Technical Problem

Existing cleaning tools struggle to efficiently clean both flat and curved surfaces, particularly when the latter has a three-dimensional shape, as they often fail to deform to fit the contours of the surface.

Method used

A cleaning tool with a flexible and elastic core plate connected to a handle, featuring a hard second plate part and a flexible first plate part, allowing the tool to adapt to both flat and curved surfaces by using the flexible end for curved surfaces and the entire cleaning section for flat surfaces.

Benefits of technology

The tool efficiently cleans both flat and curved surfaces by utilizing its flexible and elastic design, ensuring thorough coverage and effective cleaning regardless of surface shape.

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Abstract

To provide a cleaning tool capable of efficiently cleaning both a curved cleaning object surface and a flat cleaning object surface.SOLUTION: A cleaning tool 1 comprises a body part 2 and a cleaning part 3 freely attachable / detachable with respect to the body part 2, where the body part 2 is composed of a rod-shaped handle 4 and a core plate 5 for connecting the tip of the handle 4 in an inclined state. The core plate 5 is formed in a flat disk shape, and is comprised of a first plate portion 5a with flexibility and elasticity, and a second plate portion 5b being continuous with the first plate portion 5a in a bendable manner and made of a hard material. When a cleaning object surface B1 is a curved surface B2, cleaning is performed by curving the tip 3f of the cleaning part 3 covering the first plate portion 5a. The first plate portion 5a of the core plate 5 follows the curved surface B2 to be bent from the second plate portion 5b, and the cleaning part 3 also follows the deformation of the core plate 5.SELECTED DRAWING: Figure 4
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Description

[Technical field]

[0001] The present invention relates to a cleaning tool capable of cleaning a surface to be cleaned regardless of its shape. [Background technology]

[0002] Patent Document 1 discloses a cleaning tool in which an absorbent material is attached so as to cover a plate rotatably connected to a handle. The absorbent material impregnated with a cleaning liquid is brought into contact with the surface to be cleaned and slid over it, thereby cleaning the surface to be cleaned. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2003-526408 Summary of the Invention [Problem to be solved by the invention]

[0004] The plate made of the above-mentioned synthetic resin material can easily clean a flat surface, but if the surface has a three-dimensional shape, such as a curved shape like a bathtub, the plate does not deform, making it difficult to thoroughly clean the curved surface.

[0005] Therefore, if a cleaning tool in which a soft sponge material is attached directly to the handle without providing the above-mentioned plate is used, it will be possible to clean curved surfaces, but conversely, it will be difficult to press and slide the entire bottom surface of the cleaning tool against flat surfaces, resulting in a significant reduction in cleaning efficiency.

[0006] An object of the present invention is to provide a cleaning tool that can solve the above-mentioned problems and efficiently clean both curved and flat surfaces. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the cleaning tool of the present invention is a cleaning tool comprising a main body consisting of a handle portion and a core plate portion to which the handle portion is connected in an tilted state, and a cleaning portion that can be attached to cover the core plate portion, wherein the core plate portion is composed of a first plate portion made of a flexible and elastic material, and a second plate portion made of a hard material, which is continuous with the first plate portion via a boundary line, and the connecting point where the handle portion and the core plate portion are connected is located on the second plate portion. Effect of the Invention

[0008] With the cleaning tool of the present invention, when the surface to be cleaned is curved, the flexible end of the cleaning part is utilized, and when the surface to be cleaned is flat, the entire cleaning part including the end is utilized, thereby enabling efficient cleaning according to the shape of the surface to be cleaned. [Brief description of the drawings]

[0009] [Figure 1] FIG. [Diagram 2] FIG. 2 is a perspective view of the cleaning tool with the cleaning part attached to the handle. [Diagram 3] 1 is a side cross-sectional view of the cleaning tool with the cleaning part attached to the handle. FIG. [Figure 4] 4 is a cross-sectional view of the cleaning part in contact with the surface to be cleaned. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The present invention will now be described in detail with reference to the illustrated embodiments. FIG. 1 is an exploded perspective view of the cleaning tool, FIG. 2 is a perspective view of the cleaning tool with the cleaning part attached to the handle, and FIG. 3 is a side cross-sectional view of the cleaning tool in the state shown in FIG.

[0011] The cleaning tool 1 is composed of a main body 2 and a cleaning part 3 that is detachable from the main body 2. The main body 2 is composed of a rod-shaped handle 4 and a core plate 5 that connects the tip of the handle 4 at an angle.

[0012] 1 and 2, the handle 4 is connected to the core plate 5 via the pivot 6, but the handle 4 may be fixed directly to the core plate 5 in an inclined state without providing the pivot 6. In addition, a rod-shaped body with a grip is provided continuously to the upper part of the handle 4, although this is not shown in the figure.

[0013] The core plate portion 5 is shaped like a flat disk and is composed of a first plate portion 5a made of a flexible and elastic material, such as synthetic rubber, and a second plate portion 5b that is connected to the first plate portion 5a and can be bent freely, has a larger area than the first plate portion 5a, is made of a hard material, such as synthetic resin, and has a rotating portion 6 on its upper surface.

[0014] The portion where the handle portion 4 and the core plate portion 5 are connected is located on the second plate portion 5b and in the center of the core plate portion 5. The second plate portion 5b, the rotating portion 6 and the handle portion 4 may be made of the same material.

[0015] A linear boundary line 5c between the first plate portion 5a and the second plate portion 5b on the core plate portion 5 is approximately parallel to an orthogonal line perpendicular to a downward projection line of the tilted handle portion 4. The boundary line 5c is located on the opposite side of the tilt direction of the handle portion 4 at the center of the core plate portion 5, that is, on the tip side of the center of the core plate portion 5 when the left end in FIG.

[0016] The core plate portion 5 may have a structure in which a hard second plate portion 5b is sandwiched between a pair of elastic first plate portions 5a, and a pair of boundary lines 5c of such a structure are approximately parallel.

[0017] Furthermore, a boundary line 5c between the first plate portion 5a and the second plate portion 5b may be provided so as to be approximately parallel to a downward projection line of the tilted handle portion 4. Alternatively, the second plate portion 5b may be disk-shaped, and the annular first plate portion 5a may be disposed so as to surround the disk-shaped second plate portion 5b.

[0018] The rotating part 6 is composed of a shaft part 6a which is inserted into the insertion hole 4b of the handle tip part 4a of the handle part 4, and a bearing part 6b which stands from the center of the upper surface of the core plate part 5 and engages with the shaft part 6a. In this case, the boundary line 5c is approximately parallel to the shaft part 6a.

[0019] As shown in FIG. 3, the cross section of the shaft portion 6a is made hollow and polygonal, and the insertion hole 4b is also made polygonal, so that the shaft portion 6a and the handle portion 4 are integrally rotatable about the bearing portion 6b.

[0020] A protrusion on shaft 6a (not shown) fits into a groove of a predetermined angle on bearing 6b, thereby restricting the rotation angle of handle 4. This rotation angle is preferably about 0 to 40 degrees when handle 4 is horizontal and parallel to core plate 5. Furthermore, a structure may be adopted in which rotating part 6 rotates in a clicking manner when handle 4 is rotated relative to core plate 5.

[0021] The first plate portion 5a and the second plate portion 5b, which have a boundary line 5c on the surface of the core plate portion 5, are connected by insert molding. As shown in Fig. 3, a part of the bottom surface in the center of the first plate portion 5a is continuous with a protrusion 5e that protrudes from an insertion hole 5d provided in the second plate portion 5b. The protrusion 5e, which is made of an elastic material, comes into contact with the handle tip portion 4a of the handle portion 4, generating an appropriate frictional force against the handle portion 4.

[0022] The cleaning part 3 is made of, for example, a flexible and elastic foamed resin material, and has a circular opening 3b on the top surface 3a. Below this opening 3b, a gap 3c is provided having a diameter larger than that of the opening 3b and substantially the same as that of the core plate part 5. The gap 3c may be a horizontally cut notch.

[0023] The cleaning part 3 and the core plate part 5 are both disk-shaped, but may be of any other suitable shape. For example, the cleaning part 3 may be rectangular, and the core plate part 5 may be a diamond-shaped plate, with the gap part 3c also being diamond-shaped.

[0024] The opening 3b is provided with a vertical cutout 3d that makes it easy to widen the opening 3b. A wiping layer 3e made of a large number of ultrafine fiber bristles is disposed on the underside of the cleaning unit 3. This wiping layer 3e does not necessarily have to be provided on the cleaning unit 3.

[0025] To attach the cleaning part 3 to the main body 2, the opening 3b of the cleaning part 3 is opened widely and the core plate part 5 is inserted so that the flexible cleaning part 3 covers the core plate part 5 as shown in FIG.

[0026] In this way, when cleaning using the cleaning tool 1 with the cleaning part 3 attached to the main body 2, the angle of the rotating part 6 is appropriately selected according to the shape of the part to be cleaned B, and then the grip part (not shown) at the rear end of the handle 4 is gripped and the cleaning part 3 is brought into contact with the part to be cleaned B and slid. At this time, the cleaning part 3 may be impregnated with a liquid detergent or the like.

[0027] 4 is a cross-sectional view of the cleaning part 3 in contact with the part to be cleaned B, for example the surface B1 to be cleaned of a bathtub. When the surface B1 to be cleaned is a curved surface B2 which is a corner of the bathtub, cleaning is performed by bending the first plate part 5a and the tip part 3f of the cleaning part 3 which covers the first plate part 5a.

[0028] The first plate portion 5a of the core plate portion 5 bends from the second plate portion 5b in accordance with the curved surface B2, and the cleaning portion 3 also follows the deformation of the core plate portion 5. In this manner, the tip portion 3f of the cleaning portion 3, which has flexibility and elasticity, can efficiently clean the curved surface B2.

[0029] When the surface to be cleaned B1 is flat, the first and second plate members 5a and 5b of the core plate member 5 are maintained flat as shown in Fig. 3, and the entire cleaning part 3 including the tip portion 3f is used for cleaning. By using the second plate member 5b, which is hard and does not deform, the cleaning part 3 can be rubbed against the surface to be cleaned B1 while being strongly pressed against it.

[0030] In addition, the abrasive layer 3e provided on the cleaning part 3 can efficiently remove any adhering matter from the surface B1 to be cleaned, and by incorporating liquid detergent into the cleaning part 3, the liquid detergent seeps out from the cleaning part 3, thereby cleaning the surface to be cleaned more efficiently.

[0031] In this way, with the cleaning tool of the present invention, when the surface B1 to be cleaned is a three-dimensional curved surface, the flexible end of the cleaning part 3 is utilized, and when the surface B1 to be cleaned is flat, the entire cleaning part 3 including the end is utilized, thereby enabling efficient cleaning according to the shape of the surface B1 to be cleaned. [Explanation of symbols]

[0032] 1 Cleaning tools 2 Main unit 3 Cleaning Department 3a Top side 3b opening 3c Cavity 3d cut edge 4 Handle 5 Core plate 5a First plate section 5b Second plate section 5c border 5d Insertion hole 5e Protrusion 6 Rotating part 6a Shaft 6b Bearing part

Claims

1. A cleaning tool comprising a main body portion including a handle portion and a core plate portion to which the handle portion is connected in an inclined state, and a cleaning portion that can be attached to cover the core plate portion, The core plate portion is composed of a first plate portion made of a flexible and elastic material, and a second plate portion made of a hard material and continuous with the first plate portion via a boundary line, A cleaning tool characterized in that a connecting portion where the handle portion and the core plate portion are connected is located on the second plate portion.

2. 2. The cleaning tool according to claim 1, wherein the boundary line is substantially parallel to a downward projection line of the tilted handle portion, or substantially parallel to an orthogonal line perpendicular to the projection line.

3. 3. The cleaning tool according to claim 1, wherein the core plate portion has the second plate portion sandwiched between a pair of the first plate portions, and the pair of boundary lines are substantially parallel to each other.

4. The handle portion is connected to the core plate portion via a pivot portion, The rotating portion includes a shaft portion and a bearing portion that engages with the shaft portion, 3. The cleaning tool according to claim 1, wherein the boundary line is substantially parallel to the shaft portion.

5. 3. The cleaning tool according to claim 1, wherein the core plate portion and the cleaning portion are disk-shaped.

6. The cleaning tool according to claim 1 or 2, characterized in that the cleaning portion has an opening, and below the opening, there is provided a gap or cutout portion having a diameter larger than that of the opening and substantially the same as that of the core plate portion.

7. A cleaning tool as described in claim 1 or 2, characterized in that the first plate material portion and the second plate material portion having the boundary line on the surface of the core plate portion are connected by insert molding, a portion of the central bottom surface of the first plate material portion is continuous with a protrusion protruding from a central hole provided in the second plate material portion, and the protrusion made of the elastic material abuts against the handle tip of the handle portion.

8. 3. The cleaning tool according to claim 1, wherein the cleaning part is made of foamed resin.

Citation Information

Patent Citations

  • cleaning utensils

    JP2003526408A