CN108114926B

CN108114926B - Cleaning tool

Info

Publication number: CN108114926B
Application number: CN201711213051.2A
Authority: CN
Inventors: 古舘忠夫
Original assignee: Joybond Co ltd
Current assignee: Joybond Co ltd
Priority date: 2016-11-28
Filing date: 2017-11-27
Publication date: 2021-02-09
Anticipated expiration: 2037-11-27
Also published as: JP2018086610A; CN108114926A; JP6606051B2

Abstract

The invention relates to a cleaning tool, which improves the cleaning operability of an object to be cleaned such as a solar cell panel. A cleaning tool for cleaning the surface of an object (W) to be cleaned is provided with: an operating rod (11); and a first support shaft (21) and a second support shaft (22) that protrude in the right-and-left direction of the distal end portion of the operation rod (11) in a direction perpendicular to the operation rod (11), wherein the first cleaning roller (23) is rotatably attached to the support shaft (21), the second cleaning roller (24) is rotatably attached to the second support shaft (22), and the cleaning rollers (23, 24) are tapered such that the outer diameter of the base end portion side is smaller than the outer diameter of the distal end portion side. When the cleaning rollers (23, 24) are pressed against the surface of the object (W) to be cleaned and perform reciprocating operation, the front end side is in rolling contact with the surface of the object (W) to be cleaned, and the base end side is in sliding contact with the surface.

Description

Cleaning tool

Technical Field

The present invention relates to a cleaning tool for cleaning dirt on the surface of an object to be cleaned such as a solar cell panel.

Background

Cleaning tools are used to clean the walls and glass surfaces of houses. Foreign substances, such as dust and dirt, adhere to walls and glass exposed outdoors, and it is necessary to clean the surfaces of the walls and glass using the foreign substances as objects to be cleaned. Particularly, in the case of a solar cell panel, when contaminants adhere to the surface thereof, the power generation capability is lowered, and thus it is necessary to clean the surface thereof periodically.

In order to clean the surface of the solar cell panel by using the solar cell panel as a cleaning object, an electric polisher and a brush are used. However, since the surface of the solar cell panel is formed of glass, when an electric polisher or a brush is used, the surface is easily scratched due to the presence of sand or contaminants. When the surface of the battery panel is scratched, pollutants are more likely to accumulate, and the battery cannot be easily cleaned, thereby accelerating the reduction of the power generation capacity. Therefore, in order to start the cleaning work, the sand and dirt removing work is performed first.

Patent document 1 describes a cleaning tool for cleaning a surface of an object to be cleaned, such as a solar cell panel. The cleaning tool has: two left and right support shafts which are inclined forward of the operation rod at the front end of the operation rod; and a left and a right support shafts which are respectively inclined to the rear of the operation rod, and a cylindrical water-permeable elastic roller is mounted on each support shaft.

Patent document 1: japanese patent No. 5914239

In this cleaning tool, when the operation rod is reciprocated by tilting the water-permeable elastic rollers in the front-rear direction to rotate the rollers, the outer peripheral surfaces of the rollers slide and displace with respect to the surface of the object to be cleaned. In this way, when the roller is inclined in the front-rear direction and a directional component of the sliding displacement is provided on the outer circumferential surface of the roller, the inclination angle needs to be increased in order to increase the amount of the sliding displacement. However, when the inclination angle is increased, a large resistance is applied to the operation rod to rotate the water-permeable elastic roller, and there is a problem that the operability when reciprocating the operation rod is deteriorated.

Disclosure of Invention

The invention aims to improve the cleaning operability of a cleaning tool on an object to be cleaned, such as a solar cell panel.

The cleaning tool of the present invention cleans the surface of an object to be cleaned, and comprises: an operation rod that is manually operated to reciprocate in a longitudinal direction of the operation rod during cleaning; a first support shaft protruding in a direction perpendicular to the operation rod in one side direction in the left-right direction of the distal end portion of the operation rod; a second support shaft that protrudes in a direction perpendicular to the operation rod in the other side direction of the left-right direction of the distal end portion of the operation rod, the second support shaft being paired with the first support shaft; a first cleaning roller rotatably attached to the first support shaft, the first cleaning roller being tapered such that an outer diameter of the first cleaning roller on a base end side is smaller than an outer diameter of the first cleaning roller on a tip end side, and the first cleaning roller being elastically deformable in a radial direction; and a second cleaning roller rotatably attached to the second support shaft, the second cleaning roller being tapered such that an outer diameter of a base end portion side thereof is smaller than an outer diameter of a tip end portion side thereof and being elastically deformable in a radial direction, wherein when the first cleaning roller and the second cleaning roller are pressed against a surface of the object to be cleaned and the operation rod is reciprocated, the tip end portion side of each of the first cleaning roller and the second cleaning roller is in rolling contact with the surface of the object to be cleaned (cube り) and the base end portion side of each of the first cleaning roller and the second cleaning roller is in sliding contact with the surface of the object to be cleaned (slide り).

The first cleaning roller and the second cleaning roller are tapered, and have a larger diameter at the tip end side than at the base end side, and when both cleaning rollers are pressed against the surface of the object to be cleaned, the large-diameter tip end portion is elastically deformed more than the small-diameter base end portion, and the pressing force of the object to be cleaned is larger at the tip end side than at the base end side. Therefore, when the operation rod is reciprocated in the longitudinal direction, the distal end side is in rolling contact with the object to be cleaned, and the proximal end side rolling edge is in sliding contact with the object to be cleaned. Since the cleaning roller is provided in a direction substantially perpendicular to the operation rod, when the operation rod is reciprocated, the cleaning roller is not subjected to a resistance force, and the cleaning operation can be easily performed, thereby improving the cleaning operability.

Drawings

Fig. 1 is a perspective view showing a cleaning tool according to an embodiment.

Fig. 2 is an enlarged perspective view of the front end portion of the cleaning tool shown in fig. 1.

Fig. 3 is a plan view of fig. 2.

Fig. 4 is a cross-sectional view taken along line 4-4 of fig. 3.

Fig. 5A is an enlarged cross-sectional view of the cleaning roller shown in fig. 1 to 4, and fig. 5B is an enlarged cross-sectional view showing a modification of the cleaning roller.

Fig. 6A to 6D are drawings showing a state where the cleaning roller is pressed against the surface of the object to be cleaned, fig. 6A is a sectional view, fig. 6B is a plan view of fig. 6A, fig. 6C is a sectional view taken along line 6C-6C in fig. 6B, and fig. 6D is a sectional view taken along line 6D-6D in fig. 6B.

Fig. 7 is a perspective view showing a tip end portion of a cleaning tool as a modification.

Fig. 8 is a cross-sectional view showing a distal end portion of a cleaning tool according to another modification.

Fig. 9 is a perspective view showing a distal end portion of a cleaning tool according to another modification.

Fig. 10A and 10B are cross-sectional views showing the tip end portion of a cleaning tool as another modification, where fig. 10A shows a state where a cleaning roller is lightly contacted with the surface of an object to be cleaned, and fig. 10B shows a state where the cleaning roller is elastically deformed by pressing the cleaning roller against the surface of the object to be cleaned.

Fig. 11 is an explanatory view showing a state where the cleaning tool is being used to clean the solar cell panel.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As shown in fig. 1, the cleaning tool 10 has an operation rod 11 operated by an operator. When the surface of the object W to be cleaned is cleaned by the cleaning tool 10, the worker manually reciprocates the operation rod 11 in the longitudinal direction. A handle 12 to be held by an operator is provided at the base end of the operation rod 11. A bracket 13 is provided at the tip end of the operating rod 11, and two support shafts, a first support shaft 21 and a second support shaft 22, are attached to the bracket 13.

As shown in fig. 2 and 3, the first support shaft 21 protrudes from the bracket 13 in a direction perpendicular to the operation rod 11 on the left side of the operation rod 11. The second support shaft 22 protrudes from the bracket 13 in a direction perpendicular to the operation rod 11 to the right of the operation rod 11. The left-right direction of each

support shaft

21, 22 represents a direction as viewed from the operator in a state where the operator holds a part of the handle 12 of the operation rod 11 with a hand. In this way, the support shaft 21 projects on one side in the left-right direction of the operation rod 11, and the support shaft 22 projects on the other side in the left-right direction, and a pair of support shaft pairs is formed by the two

support shafts

21, 22.

When the central axis of the operation rod 11 is Q, the central axis of the support shaft 21 is R1, and the central axis of the support shaft 22 is R2, the central axes R1 and R2 are at an angle θ substantially perpendicular to the central axis Q.

The first cleaning roller 23 is rotatably attached to the first support shaft 21, and the second cleaning roller 24 is rotatably attached to the second support shaft 22. Each of the

cleaning rollers

23 and 24 is formed of a sponge which is elastically deformable freely and can absorb moisture. As shown in fig. 3, the first cleaning roller 23 is tapered such that the outer diameter D on the base end side is smaller than the outer diameter D on the tip end side, and the second cleaning roller 24 is also tapered such that the outer diameter D on the base end side is smaller than the outer diameter D on the tip end side. The outer diameter D, d and the length dimension of the two

scrub rollers

23, 24 are substantially the same as each other. The

cleaning rollers

23 and 24 have a proximal end portion on the side of the operation rod 11 and a distal end portion on the opposite side.

Fig. 5A shows an enlarged sectional view of the cleaning roller 23. The other cleaning roller 24 is also of the same construction. As shown in fig. 5A, the cleaning roller 23 has: a bearing sleeve 25 formed of metal, resin, or the like, and having a tubular shape; and a sponge 26 fixed to the outer peripheral surface of the bearing sleeve 25. The sponge 26 constitutes a main body of the cleaning roller which contacts the surface of the object W to be cleaned, and when an external force is applied in a direction of compressing in a radial direction while absorbing moisture, the sponge 26 is elastically deformed in the radial direction. A cap 27 against which the tip of the support shaft 21 abuts is provided at the tip of the bearing sleeve 25. The support shaft 21 is provided with a slide bearing portion 28a that contacts the distal end portion of the bearing sleeve 25 and a slide bearing portion 28b that contacts the base end portion of the bearing sleeve 25. Further, a retaining member 30 is attached to the protruding portion of the bearing sleeve 25, the retaining member 30 is inserted into an annular groove 29 provided in the support shaft 21, and the retaining member 30 is formed of a pin or a screw.

When the

slide bearing portions

28a and 28b are provided at the distal end portion and the proximal end portion of the support shaft 21, the rotation resistance when the cleaning roller 23 is rotated can be reduced as compared with the case where the entire inner peripheral surface of the bearing sleeve 25 is brought into contact with the outer peripheral surface of the support shaft 21, and the cleaning roller 23 can be smoothly rotated. However, the outer peripheral surface of the support shaft 21 may be in contact with the entire inner peripheral surface of the bearing sleeve 25 depending on the size of the cleaning roller 23. Further, a seal member for preventing leakage of the lubricant may be provided between the protruding end of the bearing sleeve 25 and the support shaft 21.

Fig. 5B is an enlarged sectional view showing a modification of the cleaning roller 23, and ball bearings 31a and 31B as rolling bearings are respectively attached to the distal end portion and the proximal end portion of the bearing sleeve 25 in the cleaning roller 23. The stopper 32 is attached to the distal end surface of the support shaft 21 by a screw 33, and the stopper 34 abuts against a step portion at the proximal end portion of the support shaft 21. As described above, the rotation support structure of the cleaning roller 23 may be a rolling bearing structure or a sliding bearing structure. The other cleaning rollers 24 may also be formed in the same structure.

As shown in fig. 3 and 4, the outer peripheral surfaces of the tapered

cleaning rollers

23 and 24, that is, the outer peripheral surface of the sponge 26 as the main body of the cleaning roller, are inclined so that the outer diameter increases from the base end portion to the tip end portion, and the outer peripheral surfaces are inclined at an inclination angle α, that is, an inclination angle α. On the other hand, when the cleaning

rollers

23 and 24 are pressed against the surface of the object W, the

support shafts

21 and 22 are inclined at an angle β from the base end to the tip end in a direction away from the surface of the object W so that the entire longitudinal direction of the cleaning

rollers

23 and 24 is substantially in contact with the surface of the object W. As shown in fig. 4, the inclination angle β of the

support shafts

21, 22 of the cleaning tool 10 is set to be substantially the same as the taper angle α of the cleaning

rollers

23, 24.

In this way, when the taper angle α of the cleaning

rollers

23 and 24 and the inclination angle β of the

support shafts

21 and 22 are set to be substantially the same angle, even in a state where the cleaning

rollers

23 and 24 are brought into light contact with the surface of the object W, the portions of the outer peripheral surfaces of the cleaning

rollers

23 and 24 that face the surface of the object W, that is, the entire longitudinal direction of the rollers can be brought into linear contact.

When the cleaning

rollers

23 and 24 are pressed against the surface of the object W in this state, the cleaning

rollers

23 and 24 elastically deform in a radial direction in a direction of contracting. As a result, as shown in fig. 6A to 6D, the cleaning

rollers

23 and 24 have a larger amount of elastic deformation in the radial contraction direction at the larger diameter distal end portion side than at the proximal end portion side. That is, the amount of elastic deformation toward radial contraction gradually increases from the base end portion side toward the front end portion side. Therefore, when the operation rod 11 is reciprocated in the longitudinal direction in a state where the cleaning

rollers

23 and 24 are pressed by the operation rod 11, the distal end portion side of the cleaning

rollers

23 and 24 having a large elastic deformation amount is pressed against the object W more strongly than the proximal end portion side, and therefore, the cleaning rollers do not slide on the surface of the object W but come into rolling contact with the surface. On the other hand, the pressing force against the object W is smaller on the base end side than on the tip end side, and the speed in the circumferential direction of the outer peripheral surface is slower than on the tip end side, so that the base end side comes into sliding contact with the object W as the cleaning

rollers

23 and 24 rotate.

Fig. 6A to 6D show a state where one cleaning roller 23 is pressed against the surface of the object W to be cleaned, fig. 6A is a sectional view when viewed from the same direction as fig. 4, fig. 6B is a plan view of fig. 6A, fig. 6C is a sectional view taken along line 6C-6C in fig. 6B, and fig. 6D is a sectional view taken along line 6D-6D in fig. 6B.

As shown in fig. 6A, in the case where the cleaning roller 23 is pressed against the object W to be cleaned and elastically deformed in the radial direction by the stroke S, the region of the outer peripheral surface of the cleaning roller 23 shown by the broken-line hatching in fig. 6B comes into contact with the object W to be cleaned. In this way, the area in contact with the surface of the object W to be cleaned by the elastic deformation gradually increases from the base end portion side toward the leading end portion side. Accordingly, when the operation rod 11 is reciprocated in the longitudinal direction, the outer peripheral surface on the distal end side is brought into rolling contact with the surface of the object W at the peripheral speed P1, as shown in fig. 6C and 6D, when the cleaning roller 23 is assumed to be moved at the moving speed M. That is, the cleaning roller 23 is rotationally driven at a rotational speed corresponding to the moving speed M. On the other hand, since the outer peripheral surface on the base end portion side having a smaller diameter than the tip end portion side has a peripheral speed P2 smaller than the peripheral speed P1, the outer peripheral surface on the base end portion side slides on the surface by sliding contact with the surface of the object W. Accordingly, when the operation rod 11 is operated in a reciprocating manner in a state where moisture adheres to at least a part of the surface of the object W to be cleaned, foreign substances adhering to the surface can be efficiently removed with the portion in sliding contact as a main region, and the foreign substances can be easily cleaned by reciprocating the operation rod 11 a plurality of times, thereby efficiently cleaning the surface of the object W to be cleaned such as the solar cell panel (ソーラーパネル).

Since the

support shafts

21 and 22 protrude in the left-right direction from the distal end portion of the operation rod 11 and the cleaning

rollers

23 and 24 are provided on the

support shafts

21 and 22, when the cleaning

rollers

21 and 22 are pressed against the object W to be cleaned, the outer peripheral surfaces of the left and

right cleaning rollers

23 and 24 on the distal end portion side are elastically deformed in the same manner, and therefore, the elastic force in the direction in which the operation rod 11 is rotated and twisted is not transmitted to the operation rod 11, and the operation rod 11 can be smoothly reciprocated, thereby improving the cleaning operability.

Further, the cleaning

rollers

23 and 24 are rotationally driven by the reciprocating operation of the operation rod 11. Since the cleaning

rollers

23 and 24 are provided in a direction substantially perpendicular to the operation rod 11, the reciprocating operation force in the longitudinal direction of the operation rod 11 is directly converted into the rotational force of the cleaning roller 23, and the operation force is smoothly transmitted to the rotational movement of the cleaning

rollers

23 and 24. This makes it possible to easily perform the cleaning operation without receiving a large resistance from the cleaning

rollers

23 and 24 during the cleaning operation, thereby improving the cleaning operability.

Fig. 7 is a perspective view showing a distal end portion of a cleaning tool 10 as a modification, and in the cleaning tool 10, two

support shafts

21 and 22 are directly fixed to a distal end portion of an operation rod 11 by welding or the like. As described above, the coupling structure between the operation rod 11 and the

support shafts

21 and 22 may be a structure using the bracket 13 as shown in fig. 1 or a structure directly coupled thereto.

Fig. 8 is a cross-sectional view showing a tip end portion of a cleaning tool 10 as another modification, and in the cleaning tool 10, spiral grooves 35 are provided on outer circumferential surfaces of the cleaning

rollers

23 and 24, respectively. If the spiral grooves 35 are provided in the

cleaning rollers

23 and 24, the edges of the grooves 35 are displaced in the axial direction along with the rotation of the cleaning

rollers

23 and 24 during cleaning, and therefore, the foreign matter removal efficiency can be further improved.

Fig. 9 is a perspective view showing a distal end portion of a cleaning tool 10 as another modification, in which the cleaning tool 10 is provided with two pairs of a first support shaft 21 and a second support shaft 22 at the distal end portion of an operation rod 11, and cleaning

rollers

23 and 24 are rotatably attached to the

support shafts

21 and 22, respectively. In the case where two pairs of support shafts are provided, a hinge portion is provided between the bracket 13 on the near side and the operation rod 11 so that four cleaning rollers contact the surface of the object W to be cleaned, and the base end portion side is bent with respect to the tip end portion of the operation rod 11. In this way, when a plurality of pairs of support shaft pairs are provided, the cleaning area can be increased by the reciprocating operation of the operation rod 11, and the foreign matter removal efficiency can be further improved. In the case where a plurality of pairs of support shafts are provided, each support shaft may be attached to one bracket 13.

Fig. 10A and 10B are sectional views further showing the tip end portion of a cleaning tool 10 as another modification, and show the same section as the cleaning tool shown in fig. 4.

In the cleaning tool 10, the central axes R1, R2 of the

support shafts

21, 22 are parallel to the surface of the object W to be cleaned. That is, the two center axes R1 and R2 are coaxial. Thus, the central axes of the

respective cleaning rollers

23, 24 are also parallel to the surface. That is, the

support shafts

21, 22 of the cleaning tool 10 shown in fig. 1 are inclined at an inclination angle β with respect to the surface, whereas in the cleaning tool 10 of fig. 10A and 10B, the inclination angle β is substantially 0 degree. The outer peripheral surfaces of the cleaning

rollers

23 and 24 shown in fig. 10A and 10B are inclined at an inclination angle of the taper angle α as in the above case.

In the cleaning tool 10 shown in fig. 10A and 10B, as shown in fig. 10A, when the cleaning

rollers

23, 24 are brought into light contact with the surface, the large-diameter leading end portion side is brought into contact. In this state, when the cleaning

rollers

23 and 24 are pressed against the surface, the distal end portion side is elastically deformed in a direction to contract more than the proximal end portion side in the radial direction as shown in fig. 10B. Therefore, the cleaning

rollers

23 and 24 are elastically deformed so that the entire outer peripheral surfaces thereof in the longitudinal direction come into contact with each other. Thus, as in the above case, the area of the outer peripheral surfaces of the cleaning

rollers

23 and 24 in contact with the surface of the object W gradually increases from the base end side to the tip end side due to elastic deformation, the tip end side is in rolling contact with the surface, and the base end side is in sliding contact with the surface.

In this way, if the cleaning

rollers

23 and 24 are formed in tapered shapes and the amounts of elastic deformation of the cleaning

rollers

23 and 24 in the radial contraction direction are different between the large diameter side portion and the small diameter side portion when the cleaning

rollers

23 and 24 are pressed against the surface of the object W, the inclination angle β of the

support shafts

21 and 22 may be an angle smaller than the taper angle α of the cleaning

rollers

23 and 24, different from the taper angle α. In addition, the inclination may be slightly reversed.

The inclination angle β of the

support shafts

21 and 22 may be an angle at which the

cleaning rollers

23 and 24 can be substantially in contact with the entire longitudinal direction of the cleaning

rollers

23 and 24 when the cleaning

rollers

23 and 24 are pressed against the surface of the object W. Preferably, the inclination angle β is set to an angle of 0 degrees or more and less than the taper angle α of the cleaning

rollers

23, 24. That is, the inclination angle β is set to 0. ltoreq. β. ltoreq.α. However, the inclination angle β may be slightly inclined in the opposite direction.

Note that, in the cleaning tool 10 shown in fig. 8 to 10B, the

support shafts

21 and 22 may be directly coupled to the operation rod 11 as shown in fig. 7.

Fig. 11 shows a state in which the cleaning tool 10 described above is used to clean the surface of the solar cell panel as the object W to be cleaned. Fig. 11 shows a part of a power generation facility in which a plurality of solar panels, that is, solar cell modules are laid, and shows a solar panel disposed on a base B. When cleaning the surface of the solar cell panel, the worker T holds the operation rod 11 with a hand at a portion of the handle 12, and reciprocates the operation rod 11 in the longitudinal direction. At this time, the cleaning operation is performed in a state where moisture is attached to at least a part of the surface of the solar cell panel in advance. In the case of cleaning the surface of a solar cell panel provided on the roof of a house, the cleaning operation can be similarly performed using the cleaning tool 10.

The supply of water to the surface of the solar cell panel may be performed in a state where tap water or well water is sprayed during cleaning operation, or in a state where rainwater adheres to the solar cell panel due to rainfall during rainy days. In the case of using tap water, water may be sprayed onto the surface through a hose, or water may be discharged from the sponge 26 by connecting the hose to the operation rod 11 as described in the above-mentioned patent document. However, since tap water contains mineral components such as calcium, it is desirable to wipe off the water on the surface after cleaning with the cleaning implement 10 to remove the mineral components contained in the tap water. On the other hand, since the rainwater does not contain mineral components, if the cleaning operation is performed in rainy days, it is not necessary to remove the rainwater from the surface after the cleaning operation, and the cleaning operation of the solar cell panel can be performed in a short time.

Although the main body portions of the cleaning

rollers

23 and 24 are formed of the sponge 26, the main body portions of the cleaning

rollers

23 and 24 may be formed of cloth or brush if they have a property of absorbing or retaining water.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. For example, as the operation rod 11, another auxiliary operation rod may be connected to the base end portion thereof. The cleaning tool 10 is not limited to a solar cell panel as the object W to be cleaned, and can clean the surfaces of various objects.

Description of the reference numerals

10 cleaning implement

11 operating rod

21 first support shaft

22 second support shaft

23 first cleaning roller

24 second cleaning roller

26 sponge

35 helical groove

P1 cycle speed

P2 cycle speed

W to-be-cleaned object

Angle of alpha cone

Beta is inclined at an angle.

Claims

1. A cleaning tool for cleaning a surface of an object to be cleaned, the cleaning tool comprising:

an operation rod that is manually operated to reciprocate in a longitudinal direction of the operation rod during cleaning;

a first support shaft protruding in a direction perpendicular to the operation rod in one side direction in the left-right direction of the distal end portion of the operation rod;

a second support shaft that protrudes in a direction perpendicular to the operation rod in the other side direction of the left-right direction of the distal end portion of the operation rod, the second support shaft being paired with the first support shaft;

a first cleaning roller rotatably attached to the first support shaft, the first cleaning roller having a tapered shape in which an outer diameter of a base end portion side is smaller than an outer diameter of a tip end portion side, and being free to elastically deform in a radial direction to absorb moisture; and

a second cleaning roller rotatably attached to the second support shaft, the second cleaning roller having a tapered shape in which an outer diameter of a base end portion side is smaller than an outer diameter of a tip end portion side, and being elastically deformable in a radial direction to absorb moisture,

when the first cleaning roller and the second cleaning roller are pressed against the surface of the object to be cleaned and the operation rod is reciprocated, the front end portion side of each of the first cleaning roller and the second cleaning roller is in rolling contact with the surface of the object to be cleaned, and the base end portion side of each of the first cleaning roller and the second cleaning roller is in sliding contact with the surface of the object to be cleaned.

2. The cleaning tool of claim 1,

when the first cleaning roller and the second cleaning roller are brought into contact with the surface of the object to be cleaned, the first support shaft and the second support shaft are inclined in a direction away from the surface of the object to be cleaned from the proximal end portion to the distal end portion so that the entire longitudinal direction of the first cleaning roller and the second cleaning roller is brought into contact with the surface of the object to be cleaned.

3. The cleaning tool of claim 2,

the inclination angles of the first support shaft and the second support shaft are set to angles of 0 degree or more and less than the taper angles of the outer peripheral surfaces of the first cleaning roller and the second cleaning roller, respectively.

4. The cleaning tool of claim 1,

a plurality of pairs of the first support shaft to which the first cleaning roller is fitted and the second support shaft to which the second cleaning roller is fitted are provided at a front end of the operation rod.

5. The cleaning tool of claim 1,

spiral grooves are formed in the outer peripheral surfaces of the first cleaning roller and the second cleaning roller.