Cleaning brush

Abstract

The present invention provides a brush that can efficiently clean a corner portion or the like by converging bristle materials in a curved bristle surface at high density without spreading the bristle material bundles radially. A cleaning brush (1) includes a narrow and smooth transverse lower edge bristle surface (41), a narrow and smooth vertical longitudinal edge bristle surface (42) that is substantially 90° to the lower edge bristle surface, and a curved bristle surface (43) that connects the two bristle surfaces. The curved bristle surface gradually widens from the ends of the bristle surfaces (41, 42). The lower edge bristle surface and the longitudinal edge bristle surface are formed with a plurality of fixed holes in a row in the length direction of the bristle surface. The curved bristle surface is formed with more fixed holes than the lower edge bristle surface and the longitudinal edge bristle surface in the width direction. The fixed holes of the curved bristle surface are formed in a manner that converges the tips of the respective bristle material bundles implanted therein toward the curved circumferential center and the width direction center.

Description

Technical Field

[0001] The present invention relates to a cleaning brush, for example suitable for cleaning the inner corners of two surfaces of a floor surface and a wall surface that is perpendicular to it, such as the grout lines of bathroom tiles. Background Technology

[0002] Previously, the technology disclosed in Patent Document 1 was known as a cleaning brush for the aforementioned purposes. The cleaning brush comprises a thin, plate-shaped substrate with a gripping portion and multiple bundles of bristles inserted into multiple fixing holes formed by bristle-planting surfaces on the outer periphery of the substrate. The bristle-planting surfaces of the substrate include: a narrow, smooth, transverse lower edge bristle-planting surface; a narrow, smooth, longitudinal edge bristle-planting surface at approximately 90° to the lower edge bristle-planting surface; and a curved bristle-planting surface connecting the two bristle-planting surfaces. Multiple fixing holes are formed in a row along the center of the width direction, passing through the lower edge bristle-planting surface, the longitudinal edge bristle-planting surface, and the curved bristle-planting surface. The bristle bundles are inserted into these fixing holes at right angles to each bristle-planting surface. Existing technical documents Patent documents

[0003] Patent Document 1: European Patent Application Publication No. 2428133 Summary of the Invention The technical problem that the invention aims to solve

[0004] In existing cleaning brushes, the bristle material bundles radiate outwards at the junction of the lower and longitudinal bristle surfaces—specifically, the curved bristle surface. This results in a decrease in bristle density at areas such as the inner corners between the floor and walls, hindering efficient cleaning of these corners. To enable efficient cleaning of narrow inner corners, the width of the bristle surface must be narrowed, and bristle material rows formed within this narrow surface. However, it is impossible to concentrate multiple fixing holes within the narrow, curved bristle surface. Therefore, the object of the present invention is to provide a cleaning brush with a curved bristle surface, which can concentrate the bristle material at a high density in the curved bristle surface without causing the bristle material bundles to spread out radially. Technical solutions adopted to solve technical problems

[0005] The following description will refer to the accompanying drawings, but the invention is not limited thereto. To solve the above problems, the cleaning brush 1 of the present invention is composed of a base 3 and a plurality of bristle material bundles 6 inserted into a plurality of fixing holes 5 formed in a bristle-embedded surface 4 at the outer periphery of the base. The bristle-embedded surface 4 includes a curved bristle-embedded surface 43 that is curved within a predetermined range in a generally arc shape. The curved bristle-embedded surface 43 has a width in the circumferential direction at one end and the other end, as well as in the thickness direction of the base 3. The plurality of fixing holes 5 formed in the curved bristle-embedded surface 43 are inclined such that the bristle tips of each bristle material bundle 6 inserted therein converge toward the center of the curved circumferential direction and the center of the width direction. Invention Effects

[0006] According to the present invention, the fixing holes 53 of the curved bristle surface 43 are formed so that the tips of the bristle material bundles 63 implanted therein converge toward the center of the curved circumferential direction and the center of the width direction. Therefore, the tips of the bristle material bundles 63 implanted in the curved bristle surface 43 become high-density, which can efficiently clean the inner corners of the object to be cleaned. Attached Figure Description

[0007] Figure 1 This is a front view showing the cleaning brush of the present invention. Figure 2 yes Figure 1 A bottom view of a cleaning brush. Figure 3 yes Figure 1 Side view of a cleaning brush. Figure 4 yes Figure 2 Sectional view of section IV-IV. Figure 5 yes Figure 1 The VV-direction view. Figure 6 It is based on Figure 5 Enlarged sectional view of VI-VI. Figure 7 From Figure 1 A 3D view of the cleaning brush seen from the lower left. Figure 8 It is shown Figure 1 Enlarged view of the fixing holes of the bristle material of the cleaning brush. Figure 9 It is shown Figure 1 An enlarged illustration of the relationship between the orientation of the bristle bundles in the curved bristle surface of a cleaning brush and the fixing holes. Figure 10 This is a front view showing another embodiment of the substrate in the cleaning brush of the present invention. (Symbol Explanation) 1st time; 2. Grip section; 3. Matrix; 31. Lower frame; 32. Left frame; 33 right frame part; 34 Upper frame part; 35 Hook-shaped frame; 36. Widening section; 4 hair transplanting surface; 41. Lower edge with flocking; 42. Longitudinal edge hair-fed surface; 43. Curved flocked surface; 5 fixing holes; 51 Lower edge fixing hole; 51a Parallel fixing holes; 51b middle row fixing hole; 52 longitudinal edge fixing holes; 52a parallel fixing holes; 52b middle row fixing hole; 53. Fixing hole for the bent section; 53a1~53a4 central fixing holes; 53b1~53b3 secondary column fixing holes; 6 bundles of brush material; 61. Lower edge bristle material bundle; 61a Parallel bundles of brush bristle material; 61b Middle row of brush bristle material bundles; 62 longitudinal edge bristle material bundles; 61a Parallel bundles of brush bristle material; 62b middle row of brush bristle material bundles; 63. Brush material bundles in the curved section; 63a1~63a4 Central bristle material bundle; 63b1 to 63b3 are secondary rows of brush bristle material bundles. Detailed Implementation

[0008] The embodiments of the present invention will be described with reference to the accompanying drawings. The cleaning brush 1 comprises a synthetic resin base 3 having a gripping portion 2 and multiple bristle material bundles 6 inserted into multiple fixing holes 5 formed in the bristle-embedded surface 4 on the outer periphery of the base 3. Each bristle material bundle 6 is an assembly of multiple bristle filaments, shown as a cylinder in the figures.

[0009] The base 3 is generally rectangular in shape and includes: a smoothly extending lower frame portion 31; a left frame portion 32 and a right frame portion 33 rising from the left and right ends of the lower frame portion 31; and an upper frame portion 34 connecting the upper ends of these frame portions. A space is left below the upper frame portion 34 and above the lower frame portion, and a hook-shaped frame portion 35 is formed connecting the left frame portion 32 and the right frame portion 33. The upper frame portion 34 and the hook-shaped frame portion 35 constitute the gripping portion 2.

[0010] The flocking surface 4 of the substrate 3 is composed of a lower edge flocking surface 41, a longitudinal edge flocking surface 42, and a curved flocking surface 43. The lower edge flocking surface 41 is formed on the lower surface of the lower frame portion 31, and is narrow and extends smoothly in the transverse direction. The longitudinal edge flocking surface 42 is formed on the outer side of the left frame portion 32, and forms an angle of approximately 90°, preferably 70° to 110°, relative to the lower edge flocking surface 41, and is narrow (width in the thickness direction of the substrate) and extends smoothly in the upward and downward direction. The curved flocking surface 43 is formed in an arc shape connecting the lower edge flocking surface 41 and the longitudinal edge flocking surface 42. Therefore, the curved flocking surface 43 is provided within a defined range that connects with the lower edge flocking surface 41 and the longitudinal edge flocking surface 42 at both ends.

[0011] The widths of the lower edge flocked surface 41 and the longitudinal edge flocked surface 42 can also be the same as the width of the curved flocked surface 43, but in the illustrated embodiment, the substrate 3 has a widened portion 36, and the curved flocked surface 43 formed in this widened portion 36 is as follows: Figure 8 , 9 As shown, the width of the flocked surface 41 at the lower edge and the flocked surface 42 at the longitudinal edge are arranged so that they gradually increase towards the center of the curved circumference. The width of the flocked surface 41 and 42 is about twice the width of the flocked surface 41 and 42 near the center of the arc.

[0012] Multiple fixing holes 51 and 52 are formed on the lower edge hair-planting surface 41 and the longitudinal edge hair-planting surface 42. The fixing holes are formed in multiple columns along the length direction of the hair-planting surface and are adjacent to each other in the front-to-back or width direction.

[0013] like Figure 8 As shown, the fixing holes 51 and 52 of the lower edge flocked surface 41 and the longitudinal edge flocked surface 42 are composed of a plurality of parallel fixing holes 51a and 52a that are spaced apart from each other in the length direction and arranged in pairs in the width direction, and a plurality of central fixing holes 51b and 52b that are located between the adjacent parallel fixing holes 51a and 52a in the length direction and formed in the center in the width direction. Figure 2 , 3 As shown, three rows of bristle material bundles 61a, 61b, 62a, and 62b are formed in the length direction of these fixing holes 51a, 51b, 52a, and 52b, respectively.

[0014] like Figure 4 As shown, the fixing holes 51 and 52 near the curved hair-planting surface 43 in the hair-planting surfaces 41 and 42 are formed in an inclined manner so that the bristle material bundles 61 and 62 implanted therein are inclined toward one side of the curved hair-planting surface 43.

[0015] like Figure 8As shown, the curved bristle-planting surface 43 has more fixing holes 53 in the width direction than the lower edge bristle-planting surface 41 and the longitudinal edge bristle-planting surface 42. The fixing holes 53 of the curved bristle-planting surface 41 are formed in an inclined manner so that the tips of the bristle material bundles 6 implanted therein converge towards the center of the curved circumferential direction and the center of the width direction.

[0016] More specifically, such as Figure 8 As shown, at the circumferential center of the curved hair-planting surface 43, at least four central fixing holes 53a1, 53a2, 53a3, and 53a4, from the first to the fourth, are formed in a row in the width direction. On both sides of the surface, three secondary fixing holes 53b1, 53b2, and 53b3, from the first to the third, are formed side by side in the width direction.

[0017] The first and fourth central fixing holes 53a1 and 53a4, located on the two outer sides in the width direction of the central fixing hole 53a, are as follows: Figure 9 The arrows indicate that the first and fourth central bristle material bundles 63a1 and 63a4 are formed at an angle so that they converge towards the center and above in the width direction. The second central fixing hole 53a2 is formed at an angle so that the second central bristle material bundle 63a2 implanted therein is formed towards the center and above in the width direction on the side of the longitudinal edge bristle implantation surface 42. The third central fixing hole 53a3 is formed at an angle so that the third central bristle material bundle 63a3 implanted therein is formed towards the center and above in the width direction on the side of the lower edge bristle implantation surface 41.

[0018] The first and third row fixing holes 53b1 and 53b3, located on the two outer sides in the width direction, are formed at an angle such that the first and third row bristle material bundles 63b1 and 63b3, which are respectively implanted therein, converge above the center of the width direction on the side of the lower edge bristle implantation surface 41 or the side of the longitudinal edge bristle implantation surface 42. The second row fixing hole 53b2 is formed at an angle such that the second row bristle material bundles 63b2, which are respectively implanted therein, are inclined above the center of the width direction on the side of the lower edge bristle implantation surface 41 or the side of the longitudinal edge bristle implantation surface 42.

[0019] The cleaning brush 1 is used by holding the gripping part 2 by pressing the upper frame 34 against the palm and hooking the four fingers other than the thumb onto the hook frame 35. For example, when cleaning the grout lines of floor tiles, the rows of bristle bundles 61 on one side of the lower frame can be brought into contact with the grout lines, and the brush 1 can be moved back and forth along the grout lines. When it reaches the inner corner where the floor grout meets the wall grout, the bristle bundles 63 with the curved bristle surface 43 are brought into contact with the inner corner. Therefore, by moving the brush 1 back and forth and up and down, it can work in conjunction with the bristle bundles 61 and 62 to efficiently remove dirt from the inner corner. In addition, the brush 1 of the present invention can also be used for cleaning areas other than grout lines.

[0020] The shape of the base 3 in the cleaning brush 1 of the present invention is not limited to the shape shown in the figure.

[0021] For ease of determination, Figure 10 The figure shows a modified example of the base 3 only. In this figure, the same symbols are used for the components that are the same as in the previous embodiment, and the descriptions are omitted.

[0022] exist Figure 10 In the embodiment shown in (A), the gripping portion 2 of the substrate 3 extends obliquely at an angle of approximately 45° from the connection between the lower frame portion 31 and the left frame portion 32. A lower edge hair-forming surface 41, a longitudinal edge hair-forming surface 42, and a curved hair-forming surface 43 are respectively formed on the lower frame portion 31, the left frame portion 32, and the outer surface connecting the two frame portions.

[0023] exist Figure 10 In another embodiment shown in (B), the gripping part 2 extends from the upper end of the left frame part 32 and is generally parallel to the lower frame part 31.

[0024] exist Figure 10 In another embodiment shown in (C), the substrate 3 is a generally L-shaped, bent square rod, with the gripping portion 2 and the lower edge hair-planting surface 41 extending continuously in a straight line, and its longitudinal edge hair-planting surface 42 ending relatively shortly thereon. A curved hair-planting surface 43 is formed between the lower edge hair-planting surface 41 and the longitudinal edge hair-planting surface 42. The orientation of the bristle material bundles implanted in the lower edge hair-planting surface 41, the longitudinal edge hair-planting surface 42, and the curved hair-planting surface 43 is the same as in the previous embodiment.

[0025] In any of the above embodiments, the cleaning brush 1 is used to perform cleaning operations by gripping the gripping part 2. Alternatively, the base 3 can also have a structure without the gripping part.

Claims

1. A cleaning brush, characterized in that, The cleaning brush consists of a substrate and multiple bundles of bristle material implanted in multiple fixing holes formed on the bristle-embedded surface of the substrate. The hair-planting surface includes a curved hair-planting surface within a specified range that is generally arc-shaped. The curved flocking surface has a circumferential end and a circumferential end that define a specified range of curvature, as well as a width in the thickness direction of the substrate. The plurality of fixing holes formed on the curved bristle implantation surface are inclined such that the tips of the bristle material bundles implanted therein converge toward the center of the curve in both the circumferential and width directions.

2. A cleaning brush, characterized in that, The cleaning brush consists of a base with a gripping part and multiple bundles of bristles inserted into multiple fixing holes formed by the bristle-embedded surface on the outer periphery of the base. The substrate has the following features: a smooth, transversely oriented lower edge hair-planting surface; a smooth, longitudinally oriented hair-planting surface, the longitudinally oriented hair-planting surface forming a predetermined angle with the lower edge hair-planting surface; and a generally arc-shaped curved hair-planting surface connecting the lower edge hair-planting surface and the longitudinally oriented hair-planting surface. Multiple fixing holes are formed on the lower edge flocked surface and the longitudinal edge flocked surface. The fixing holes are arranged in multiple columns along the length direction of the flocked surface and are adjacent to each other in the longitudinal direction or the width direction. The fixing holes of the curved bristle implantation surface are formed such that the tips of the bristle material bundles implanted therein converge toward the center of the curved circumferential direction and the center of the width direction.

3. The cleaning brush as described in claim 2, characterized in that, The curved flocking surface is configured such that its width gradually increases from the ends of the lower edge flocking surface and the longitudinal edge flocking surface toward the circumferential center of the curved portion. On the curved flocked surface, as the width of the flocked surface increases, more fixing holes are formed in the width direction than in the lower edge flocked surface and the longitudinal edge flocked surface. The fixing holes of the curved bristle implantation surface are formed such that the tips of the bristle material bundles implanted therein converge toward the center of the curved circumferential direction and the center of the width direction.

4. The cleaning brush as described in claim 2 or 3, characterized in that, At the circumferential center of the curved flocked surface, at least four first to fourth central fixing holes are formed in a row in the width direction. On both sides of the central fixing hole column, at least three first to third column fixing holes are formed in a column in the width direction. The first and fourth central fixing holes, located on the two outer sides of the curved bristle-planting surface in the width direction, are inclined to converge upwards and in the width direction of the first and fourth central bristle material bundles that are fixed therein. The second central fixing hole, adjacent to the first central fixing hole, is formed at an angle such that the second central bristle material bundle implanted therein is inclined above and in the width direction towards the center of one of the secondary fixing holes. The third central fixing hole, adjacent to the fourth central fixing hole, is formed at an angle such that the third central bristle material bundle implanted therein is inclined above and in the width direction towards the center of the other secondary fixing hole. The first and third rows of fixing holes located on the two outer sides of the curved hair-planting surface in the width direction are inclined to form such that the first and third rows of bristle material bundles implanted therein converge above the center in the width direction on either the lower edge hair-planting surface or the longitudinal edge hair-planting surface. The second row of fixing holes is formed such that the second row of bristle material bundles implanted therein are inclined in a manner that they are directed toward the center above the width direction of the lower edge bristle surface or the longitudinal edge bristle surface.

5. The cleaning brush as described in claim 2 or 3, characterized in that, The fixing holes on the lower edge of the substrate are composed of multiple parallel fixing holes and multiple center-row fixing holes. The multiple parallel fixing holes are spaced apart from each other in the length direction and are formed in pairs in the width direction. The multiple center-row fixing holes are located between the adjacent parallel fixing holes in the length direction and are formed in the center in the width direction.

6. The cleaning brush as described in claim 2 or 3, characterized in that, The fixing holes on the longitudinal edge of the substrate are composed of multiple parallel fixing holes and multiple center-row fixing holes. The multiple parallel fixing holes are spaced apart from each other in the length direction and are formed in pairs in the width direction. The multiple center-row fixing holes are located between the adjacent parallel fixing holes in the length direction and are formed in the center in the width direction.

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