Roller-type brush for cleaning hull

Abstract

The present invention relates to a roller-type brush for cleaning a hull and, more specifically, to a roller-type brush for cleaning a hull, the brush removing marine organisms attached to a hull and, simultaneously, minimizing paint water generated while removing the marine organisms. To order to accomplish the objective, the present invention provides the roller-type brush for cleaning a hull, comprising: a frame part provided in a cylindrical shape; a plurality of rail parts, which are extended in the longitudinal direction of the frame part, are coupled to the outer peripheral surface of the frame part, and are coupled in the circumferential direction of the frame part; and a module part, which is formed to be curved in the circumferential direction of the frame part so as to be coupled to the rail parts, wherein a hull-cleaning brush is formed on the outer surface of the module part.

Description

Roller brush for hull cleaning

[0001] The present invention relates to a roller-type brush for cleaning a hull, and more particularly, to a roller-type brush for cleaning a hull for removing marine organisms attached to a hull and, at the same time, minimizing paint water generated while removing the marine organisms.

[0002]

[0003] Even on a newly built ship, various marine organisms begin to attach themselves to the lower surface of the hull the moment it touches the seawater.

[0004] A variety of marine life, including slime, seaweed, barnacles, and mussels, adhere to the surface of a ship's hull. Depending on the amount of adhered material, the ship's movement speed decreases and fuel costs increase by 10-30%, so cleaning the hull surface is essential.

[0005] To prevent marine life from attaching, the surface of the hull is coated with paint, but this only delays the time it takes for marine life to attach, and after about a year, marine life such as barnacles and mussels, which greatly increase water resistance, form colonies and attach themselves to the surface of the hull.

[0006] To remove these marine organisms, people must dive in and clean the hull surface directly, or a ship cleaning robot must clean the hull surface.

[0007] In the case of divers, cleaning is typically done using equipment equipped with a spatula, high-pressure jet, and cleaning brush.

[0008] In the case of robots, cleaning is typically done using high-pressure sprayers and cleaning brushes.

[0009] Among these, cleaning brushes are largely divided into disk type and roller type. The disk type is a type in which the brush material is installed on one side of a flat disk, and the roller type is a type in which the brush material is installed on the surface of a long cylinder.

[0010] Figure 1 is an example diagram showing a cross-section of a hull before and after using a conventional brush.

[0011] Referring to Figure 1, slime, seaweed, and barnacles attached to the paint surface of the hull surface can be cleaned with a plastic base material, but a brush made of a plastic base material can damage the hull surface and generate paint residue, and this generated paint residue has the problem of affecting environmental pollution.

[0012] To prevent the formation of these paint stains, install cleaning brushes with silicone or urethane bases instead of plastic bases, and adjust the brush pressure and RPM when cleaning. Furthermore, the hull surface harbors a variety of marine life. Optimal cleaning is achieved by changing the cleaning brushes as needed.

[0013] In this way, if you replace a plastic brush with a brush made of a different material after using it, it takes about 30 to 60 minutes. Since this time is required every time the brush is replaced, the cleaning time becomes longer.

[0014] Specifically, brush replacement must be performed on a surface vessel or on land for safety reasons. Since equipment using brushes weighs at least 50 kg in air, they must be hoisted onto the surface with a crane before being replaced using tools. Furthermore, after brush replacement, the equipment must be moved back to the previous cleaning location, which can be time-consuming to find underwater.

[0015] In this way, the increased time due to brush replacement leads to increased labor costs, so in the past, cleaning was often done only with plastic brushes rather than replacing brushes depending on the situation. In the case of the plastic brush used in the past, when cleaning, the work is done up to the height value set by the equipment, and although this forms a flat surface when visually confirmed as shown in Fig. 1, the cleaning result looks good, but the floating substances and paint water from the fouling that occurs during cleaning are also wiped away, which can cause environmental pollution.

[0016] Therefore, a technology is needed to effectively clean the hull while minimizing environmental pollution.

[0017]

[0018] <Prior Art Literature>

[0019] Korean Patent No. 1505427

[0020]

[0021] The purpose of the present invention to solve the above problems is to provide a roller-type brush for cleaning a hull that removes marine organisms attached to the hull and, at the same time, minimizes paint water generated while removing the marine organisms.

[0022] The technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0023]

[0024] The present invention for achieving the above purpose provides a roller-type brush for cleaning a hull, which comprises a frame part provided in a cylindrical shape, a rail part extending in the longitudinal direction of the frame part, coupled to the outer surface of the frame part, and having a plurality of rail parts coupled along the circumferential direction of the frame part, and a module part formed in a curved surface along the circumferential direction of the frame part and provided to be coupled to the rail part, and a brush for cleaning a hull is formed on the outer surface of the module part.

[0025] In an embodiment of the present invention, the frame portion may include a main body frame that is provided in a cylindrical shape and is provided to be rotatable, and rail grooves formed at preset intervals along the circumferential direction of the main body frame, and the rail grooves may be characterized in that they are formed to extend along the longitudinal direction of the main body frame.

[0026] In an embodiment of the present invention, the main body frame is provided in the center of a cylindrical body, and includes a central hole formed through the longitudinal direction and a coupling hole formed on both sides of the body and formed around the central hole, and the body is provided to be rotatable around the central hole as a rotation axis.

[0027] In an embodiment of the present invention, the rail groove may be formed to be spaced apart from each other at a preset interval along the circumferential direction of the frame portion, and may include a guide groove formed to extend along the longitudinal direction of the frame portion, and a catch groove formed on an outer surface of the guide groove and having a width narrower than the guide groove.

[0028] In an embodiment of the present invention, the rail portion may be characterized by including a rail frame formed to extend in the longitudinal direction of the frame portion and configured to be inserted into the guide groove, a rail hole formed at a predetermined interval along the longitudinal direction of the rail frame, and a catch protrusion formed at one end of the rail frame and extended by bending as much as the thickness of the catch groove.

[0029] In an embodiment of the present invention, the module part may be characterized by including a module body formed in a curved surface along the circumference of the frame part to cover a portion of the frame part; a hull cleaning brush formed on an outer surface of the module body; and a block formed at a corner of the module body and arranged to be coupled to the rail part.

[0030] In an embodiment of the present invention, the sole may be made of a silicone material and may be characterized by a shore hardness of 80 to 90.

[0031] In an embodiment of the present invention, the sole may be characterized by being made up of protrusions having a diameter of 0.5 to 1.5 mm.

[0032] In an embodiment of the present invention, the block may include a connecting member formed to extend downward from a corner of the module body and inserted into a catch groove of the frame part; a protruding block formed to protrude upward from a corner of the module body; and a mounting hole formed through the protruding block at a position corresponding to the connecting member, and a bolt inserted through the mounting hole may be provided to connect the rail part and the module part.

[0033] In an embodiment of the present invention, the module portion may be provided such that a plurality of module portions are coupled in the longitudinal direction of the frame portion, and the module portions arranged to be adjacent in the circumferential direction of the frame portion may be arranged to be staggered along the longitudinal direction of the frame portion.

[0034]

[0035] The effect of the present invention, according to the above configuration, can minimize damage to the hull and reduce the occurrence of paint contamination. As a result, environmental pollution can be minimized.

[0036] You can save time and labor costs because you don't have to replace brushes depending on the situation.

[0037] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0038]

[0039] Figure 1 is an example diagram showing a cross-section of a hull before and after using a conventional brush.

[0040] FIG. 2 is a perspective view of a roller-type brush for cleaning a hull according to one embodiment of the present invention.

[0041] Figure 3 is a perspective view of a frame portion according to one embodiment of the present invention.

[0042] Figure 4 is a side view of a frame portion according to one embodiment of the present invention.

[0043] Figure 5 is a perspective view of a rail section according to one embodiment of the present invention.

[0044] Figure 6 is a perspective view showing a rail portion inserted into a frame portion according to one embodiment of the present invention.

[0045] Figure 7 is a perspective view of a module according to one embodiment of the present invention.

[0046] Figure 8 is a perspective view of a module according to another embodiment of the present invention.

[0047] Fig. 9 is a side view showing the design dimensions of a module according to one embodiment of the present invention.

[0048] Figure 10 is an example diagram showing a module section according to shore hardness.

[0049] Fig. 11 is a driving example diagram of a roller-type brush for cleaning a hull according to one embodiment of the present invention.

[0050] Figure 12 is a table comparing a conventional plastic cleaning brush and a roller-type brush for cleaning a hull according to an embodiment of the present invention.

[0051]

[0052] The most preferred embodiment according to the present invention comprises a frame portion provided in a cylindrical shape;

[0053] It includes a rail portion extending in the longitudinal direction of the frame portion, coupled to the outer surface of the frame portion, and having a plurality of rail portions coupled along the circumferential direction of the frame portion; and a module portion formed in a curved surface along the circumferential direction of the frame portion and arranged to be coupled to the rail portion, characterized in that a brush for cleaning the hull is formed on the outer surface of the module portion.

[0054]

[0055] Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention may be implemented in various different forms and is therefore not limited to the embodiments described herein. In the drawings, irrelevant parts have been omitted for clarity of description, and similar parts have been designated with similar reference numerals throughout the specification.

[0056] Throughout the specification, when a part is said to be "connected (connected, contacted, or coupled)" to another part, this includes not only cases where it is "directly connected," but also cases where it is "indirectly connected" with another part in between. Furthermore, when a part is said to "include" a component, this does not exclude other components, but rather implies that it may include other components, unless otherwise specifically stated.

[0057] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this specification, it should be understood that the terms "comprises" or "has" indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0058] Additionally, terms such as “... part,” “... unit,” and “... module” described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware, software, or a combination of hardware and software.

[0059] Additionally, when a step is said to be located "before" or "after" another step in this specification, this includes not only cases where the step is in a direct time-series relationship with the other step, but also cases where the two steps are in an indirect time-series relationship where the time-series order may be changed, such as a mixing step after each step.

[0060] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0061] FIG. 2 is a perspective view of a roller-type brush for cleaning a hull according to one embodiment of the present invention.

[0062] Referring to FIG. 2, a roller-type brush (1000) for cleaning a hull includes a frame portion (1100), a rail portion (1200), and a module portion (1300), and a hull cleaning brush (1320) can be formed on the outer surface of the module portion (1300).

[0063] FIG. 3 is a perspective view of a frame portion according to an embodiment of the present invention, and FIG. 4 is a side view of a frame portion according to an embodiment of the present invention.

[0064] Referring further to FIGS. 3 and 4, the frame portion (1100) is provided in a cylindrical shape to form the body of a roller-type brush (1000) for cleaning the hull, and may include a main body frame (1110) and a rail home (1120).

[0065] The above main body frame (1110) is provided in a cylindrical shape and may be provided to be rotatable. The main body frame (1110) may include a body (1111), a center hole (1112), and a joining hole (1113).

[0066] The body (1111) is provided in a cylindrical shape and may be provided to have a diameter of 150 to 180 mm. The body (1111) may be provided with a polypropylene material and may be provided with a length of 840 mm. However, the length of the body (1111) is not limited thereto and may be adjusted within a range of 700 to 1000 mm.

[0067] Meanwhile, the body (1111) may be formed with a cylindrical inner body and a cylindrical outer body. In this case, the inner body may be formed to be longer so as to protrude further to both sides compared to the outer body. In addition, the diameter of the inner body may be formed to be 95 to 120 mm. By forming the center hole (1112) and the coupling hole (1113) described below in the inner body formed in this manner, the rotation shaft frame inserted into the rotation shaft can be prevented from interfering with the outer body.

[0068] The above-mentioned central hole (1112) is provided at the center of the body (1111) and can be formed to penetrate along the longitudinal direction of the body (1111). The central hole (1112) provided in this manner serves as a rotation axis and can be provided so that the rotation axis frame of the cleaning robot can be inserted and coupled.

[0069] The above-mentioned coupling holes (1113) are formed on both sides of the body (1111), and may be formed around the center hole (1112). Specifically, the coupling holes (1113) may be formed at preset intervals along the circumference of the center hole (1112) and may be arranged to be coupled with a cleaning robot.

[0070] The above rail grooves (1120) may be formed at preset intervals along the circumferential direction of the main body frame (1110). In addition, the rail grooves (1120) may be formed to extend along the longitudinal direction of the main body frame (1110).

[0071] More specifically, the rail home (1120) may include a guide home (1121) and a catch home (1122).

[0072] The above guide grooves (1121) are formed to be spaced apart from each other at a predetermined interval along the circumferential direction of the frame portion (1110), and may be formed to extend along the longitudinal direction of the frame portion (1110). At this time, the guide grooves (1121) are formed to penetrate both ends of the frame portion (1110), and may be formed inward at a predetermined interval from the outer circumferential surface of the frame portion (1110).

[0073] The above-mentioned catch groove (1122) is formed on the outer surface of the above-mentioned guide groove (1121), and may be formed to have a narrower width than the above-mentioned guide groove (1121). In this way, the catch groove (1122) may be formed so that the upper surface is open, and the lower surface is formed so as to be in communication with the above-mentioned guide groove (1121).

[0074] FIG. 5 is a perspective view of a rail portion according to an embodiment of the present invention, and FIG. 6 is a perspective view showing a rail portion inserted into a frame portion according to an embodiment of the present invention.

[0075] Referring to FIGS. 5 and 6, the rail portion (1200) extends in the longitudinal direction of the frame portion (1100), is coupled to the outer circumferential surface of the frame portion (1100), and a plurality of rail portions can be coupled along the circumferential direction of the frame portion (1100).

[0076] Specifically, the rail section (1200) may include a rail frame (1210), a rail hole (1220), and a catch (1230).

[0077] The above rail frame (1210) may be formed to extend in the longitudinal direction of the frame portion (1100) and may be provided to be inserted into the guide groove (1121). The length of the rail frame (1210) may be provided to be the same as the length of the guide groove (1121), and the thickness of the rail frame (1210) may be provided to be a thickness that can be inserted into and fitted into the guide groove (1121).

[0078] The above rail holes (1220) can be formed at preset intervals along the length direction of the rail frame (1210).

[0079] The above-mentioned catch (1230) is formed at one end of the rail frame (1210) and can be bent and extended upward. At this time, the length of the catch (1230) can be set to correspond to the thickness of the catch groove (1122).

[0080] The rail section (1200) prepared in this manner can be prepared with SUS material having high strength and corrosion resistance.

[0081] Fig. 7 is a perspective view of a module according to one embodiment of the present invention, and Fig. 8 is a perspective view of a module according to another embodiment of the present invention. Fig. 9 is a side view showing design dimensions of a module according to one embodiment of the present invention, and Fig. 10 is an exemplary diagram showing a module according to Shore hardness.

[0082] Referring to FIGS. 7 to 10, the module portion (1300) may be formed as a curved surface along the circumferential direction of the frame portion (1100) and may be arranged to be coupled to the rail portion (1200).

[0083] The above module part (1300) may include a module body (1310), a sole (1320), and a block (1330).

[0084] The above module body (1310) can be formed into a curved surface along the circumference of the frame portion (1100) so as to cover a portion of the frame portion (1100).

[0085] Specifically, the module body (1310) may be provided to have a width and length that allow a plurality of modules to be combined along the longitudinal and circumferential directions of the frame portion (1100), respectively. That is, the outer circumferential surface of the frame portion (1100) may be provided to be covered by a plurality of module bodies (1310) in the longitudinal and circumferential directions, respectively.

[0086] The above-mentioned brush (1320) may be formed on the outer surface of the module body (1310) to clean the hull.

[0087] The above-mentioned sole (1320) may be formed of protrusions having a diameter of 0.5 to 1.5 mm, and the length of the sole (1320) may be set to 17 to 30 mm. However, the diameter and length of the sole (1320) are not limited thereto.

[0088] In addition, the above-mentioned sole (1320) is made of silicone material and can be provided with a shore hardness of 80 to 90 to effectively remove marine organisms and fouling attached to the hull.

[0089] Additionally, the outer end of the sole (1320) may be provided in a round shape and may be provided so that the diameter is reduced by 20%.

[0090] However, the outer end of the sole (1320) is not limited to a round shape, and the sole (1320) may be provided in the shape of a polygonal pillar. For example, it is possible to provide it in the shape of a triangular pillar.

[0091] The above block (1330) may be formed at a corner of the module body (1310) and may be arranged to be combined with the rail portion (1200).

[0092] The above block (1330) may include a combination body (1331), a protruding block (1332), and a mounting hole (1333).

[0093] The above-mentioned combination (1331) may be formed to extend to the lower part of the corner of the module body (1310) and be inserted into the engaging groove (1122) of the frame portion (1100).

[0094] Specifically, the above-mentioned assembly (1331) is provided at each of the four corners of the above-mentioned module body (1310) and may be formed to extend downward. At this time, the width and depth of the above-mentioned assembly (1331) may be provided to correspond to the above-mentioned engaging groove (1122).

[0095] The above protruding block (1332) can be formed by protruding upward from the corner of the module body (1310).

[0096] Specifically, the protruding block (1332) is formed to protrude upward from the four corners of the module body (1310), and may be provided so that the sole (1320) is not formed on the upper surface.

[0097] The protruding block (1332) provided in this manner can be provided to increase the removal efficiency by coming into contact with marine organisms and fouling that are not easily removed by the brush (1320).

[0098] Meanwhile, the protruding block (1332) may be provided in a trapezoidal shape or a rectangular parallelepiped shape, and protrusions may be further formed on the upper surface of the protruding block (1332) to further improve removal efficiency.

[0099] The above mounting hole (1333) can be formed through a hole in the protruding block (1332) at a position corresponding to the combination body (1331).

[0100] The bolt inserted through the mounting hole (1333) provided in this manner can be arranged to be coupled to the rail hole (1220) to couple the rail portion (1200) and the module portion (1300).

[0101] At this time, if the bolt is connected without fully inserting the rail portion (1200), friction may occur between the block (1300) and the frame portion (1100), which may restrict the movement of the rail portion (1200). Therefore, when inserting the bolt into the mounting hole (1333), it may be arranged to insert the bolt while the rail portion (1200) is fully inserted.

[0102] Meanwhile, the module parts (1300) arranged to be adjacent to each other in the circumferential direction of the frame part (1100) may be arranged to be staggered along the longitudinal direction of the frame part (1100). That is, the rail hole (1220) may be formed at an interval at which the bolts can be coupled while the adjacent module parts (1300) are arranged to be staggered within a range of 30 to 70%.

[0103] As arranged in this way, the spacing between the protruding blocks (1332) becomes narrower and the path passing through the hull becomes longer, so that the marine organisms and fouling can be removed more effectively.

[0104] Fig. 11 is a driving example diagram of a roller-type brush for cleaning a hull according to an embodiment of the present invention, and Fig. 12 is a table comparing a conventional plastic cleaning brush and a roller-type brush for cleaning a hull according to an embodiment of the present invention.

[0105] Referring to FIGS. 11 and 12, when the protruding block (1330) is rotated, it can first contact and impact the marine organism (1) firmly attached to the hull, and then the brush (1320) can contact the impacted marine organism (1), thereby removing the marine organism (1) more effectively.

[0106] And, since the sole (1320) is not formed in the protruding block (1330) portion, the sole (1320) can effectively remove fouling (2) even on the curved surface of the hull through this portion.

[0107] In addition, since the sole (1320) according to the present invention is made of an elastic silicone material, it is possible to minimize the effect of grinding the surface of the hull while removing fouling (2).

[0108] As a result, conventional plastic cleaning brushes generate a large amount of paint water, causing environmental pollution, but the present invention has the effect of minimizing environmental pollution by minimizing the generation of paint water.

[0109] In addition, conventional plastic cleaning brushes required replacement of each cleaning brush for marine life (1) and fouling (2) to minimize environmental pollution, but the roller-type brush (1000) for hull cleaning according to the present invention can remove marine life (1) and fouling (2) while minimizing the generation of paint water with just a single brush. Therefore, the present invention can reduce time and labor costs due to brush replacement.

[0110] Although the description of the present invention has been illustrated with limited drawings, it is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical spirit or essential characteristics of the present invention. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single component may be implemented in a distributed manner, and likewise, components described as distributed may be implemented in a combined form. Furthermore, the described techniques may be performed in a different order than the described method.

[0111] The embodiments described in this specification and the accompanying drawings merely illustrate some of the technical concepts encompassed by the present invention. Therefore, the scope of the present invention is defined by the claims below, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

[0112]

[0113] <Explanation of symbols>

[0114] 1: Marine life

[0115] 2: Fowling

[0116] 1000: Roller brush for hull cleaning

[0117] 1100: Frame section

[0118] 1110: Body frame

[0119] 1111: Body

[0120] 1112: Central Hall

[0121] 1113: Combination Hall

[0122] 1120: Rail Home

[0123] 1121: Guide Home

[0124] 1122: Jamming Home

[0125] 1200: Rail section

[0126] 1210: Rail frame

[0127] 1220: Rail Hall

[0128] 1230: Snag

[0129] 1300: Module section

[0130] 1310: Module body

[0131] 1320: Sol

[0132] 1330: Block

[0133] 1331: Combination

[0134] 1332: Protruding block

[0135] 1333: Mounting hole

Claims

1. A frame part formed in a cylindrical shape; A rail portion extending in the longitudinal direction of the frame portion, coupled to the outer surface of the frame portion, and having a plurality of rail portions coupled along the circumferential direction of the frame portion; and It includes a module portion formed in a curved shape along the circumference of the frame portion and arranged to be coupled to the rail portion, A roller-type brush for cleaning a hull, characterized in that a brush for cleaning a hull is formed on the outer surface of the module.

2. In paragraph 1, The above frame part, A main body frame that is cylindrical and rotatable; and It includes rail grooves formed at preset intervals along the circumferential direction of the above main body frame, A roller-type brush for cleaning a hull, characterized in that the rail home is formed to extend along the length direction of the main body frame.

3. In paragraph 2, The above main body frame is, A body made in a cylindrical shape; A central hole formed in the center of the body and extending along the length; and It is formed on both sides of the body, and includes a joining hole formed around the center hole. A roller-type brush for cleaning a hull, characterized in that the body is rotatable around the central hole as a rotation axis.

4. In paragraph 2, The above rail home, Guide grooves formed to be spaced apart from each other at preset intervals along the circumferential direction of the frame portion and extended along the longitudinal direction of the frame portion; and A roller-type brush for cleaning a hull, characterized in that it includes a catch groove formed on the outer surface of the guide groove and formed with a width narrower than the guide groove.

5. In paragraph 3, The above rail part, A rail frame formed to extend in the longitudinal direction of the above frame portion and configured to be inserted into the above guide groove; Rail holes formed at preset intervals along the longitudinal direction of the above rail frame; and A roller-type brush for cleaning a hull, characterized in that it is formed on one end of the rail frame and includes a hooking jaw that is bent and extended by the thickness of the hooking groove.

6. In paragraph 1, The above module part, A module body formed in a curved shape along the circumference of the frame portion to cover a portion of the frame portion; A hull cleaning brush formed on the outer surface of the module body; and A roller-type brush for cleaning a hull, characterized in that it includes a block formed at a corner of the module body and arranged to be combined with the rail portion.

7. In paragraph 6, The above sole, A roller brush for cleaning hulls, made of silicone material and characterized by a shore hardness of 80 to 90.

8. In paragraph 6, The above sole, A roller brush for cleaning a hull, characterized by having protrusions with a diameter of 0.5 to 1.5 mm.

9. In paragraph 6, The above block is, A connecting member formed to extend to the lower part of the corner of the above module body and configured to be inserted into the engaging groove of the above frame part; A protruding block formed by protruding upward at the corner of the above module body; and The above protruding block includes a mounting hole formed through a position corresponding to the above combination body, A roller-type brush for cleaning a hull, characterized in that a bolt inserted through the above mounting hole is provided to connect the rail portion and the module portion.

10. In paragraph 6, The above module portion is arranged so that a plurality of modules are connected in the length direction of the frame portion, A roller-type brush for cleaning a hull, characterized in that the module parts arranged to be adjacent to each other in the circumferential direction of the frame part are arranged to be staggered along the longitudinal direction of the frame part.

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