JP3274852B2 - Attachment for cleaning - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device which is attached to the tip of a drive arm of a construction machine such as a power shovel and moves on a surface to be cleaned with the movement of the drive arm to clean the surface to be cleaned. It is about attachments.

[0002]

2. Description of the Related Art Weeds grow on seawalls, roadsides, roadside walls, and castle walls provided on riverbeds, rivers, and the like. Therefore,
Weeds are regularly removed and cleaned from such aesthetic point of view. Conventionally, as a cleaning method, a cleaning worker operates a mower to cut weeds, and then collects and collects the cut weeds. However, riverbeds and revetments to be cleaned are not leveled, and there are many slopes, making cleaning work difficult.This leads to prolonged cleaning work and increased cleaning costs. It was one of the main factors to invite.

In recent years, for example, Japanese Patent Application Laid-Open No. 10-201
A mechanization of a cleaning operation as described in Japanese Patent No. 326 has been proposed. In this proposed example, a mowing attachment is attached to the tip of a driving arm of a construction machine such as a power shovel, and the mowing attachment is moved on a cleaning target surface to be cleaned by moving the driving arm to be cleaned. Weed and grow weeds on the surface.

[0004]

However, the above mowing attachment cuts the weeds from the vicinity of the root position, so that weeds of relatively short height can be effectively cut and collected, but weeds of relatively short height can be obtained. Although weeds, such as weeds such as reeds and tall bubbly weeds, can be cut, efficient recovery cannot be expected. This is because, in the above proposed example, the cut weeds are sucked and collected, but when tall weeds are cut, it is difficult to suck the cut weeds as they are.

[0005] In the above, weeding and recovery of weeds has been described. However, in recent years, revetment, road side walls, castle walls, and the like have been used for cleaning work other than weeding and recovery, simultaneously with or independently of weeding. There is a demand for an operation of cleaning the surface of a revetment or the like (hereinafter, referred to as “surface cleaning”). This is because, in addition to the weeds growing on the concrete surface such as seawalls, dirt such as moss and dust adhere to the concrete over time and impair the aesthetic appearance as in the case of weeds. However, at present,
The surface of the revetment or the like, that is, the surface to be cleaned has to be cleaned manually, and there is a problem that a large amount of work and time are required to perform the surface cleaning over a wide range.

The present invention has been made in view of the above problems, and a first object of the present invention is to provide a cleaning attachment capable of efficiently cleaning a surface to be cleaned such as a seawall.

Another object of the present invention is to provide a highly versatile and practical cleaning attachment which is capable of reliably cutting and collecting weeds growing on a surface to be cleaned without being limited to the types of weeds. This is the second purpose.

[0008]

A cleaning attachment according to the present invention is attached to the tip of a drive arm of a construction machine, and moves on the surface to be cleaned with the movement of the drive arm to clean the surface to be cleaned. A cleaning attachment, wherein in order to achieve the first and second objects, a main body portion configured to be mountable to a tip of the drive arm, and a skirt-shaped attachment to an outer periphery of the main body portion; A cover member forming an internal space facing the surface to be cleaned, a rotating shaft provided rotatably with respect to the main body in a state where an axial tip protrudes into the internal space, and a mowing attached to the rotating shaft. A cutter which is detachably attached to a tip end of the rotating shaft, and which has a cleaning member which comes into contact with the surface to be cleaned by being attached to the rotating shaft, wherein the mowing cutter is driven by rotating the rotating shaft. Tar and rotating said cleaning member, and at the same time the cleaning member is cleaning the surface to be cleaned while sliding on the surface to be cleaned, reaps weeds the mowing cutter is present in the surface to be cleaned.

In the cleaning attachment constructed as described above, the rotating arm driven to rotate and the mowing cutter attached to the rotating shaft are provided at the tip of the drive arm of the construction machine. Even if the cleaning surface is an inclined surface, weeds growing on the surface to be cleaned can be cut by moving the drive arm along the cleaning attachment along the surface to be cleaned. In addition, when cleaning the surface of the surface to be cleaned as well as cutting the weeds on the surface to be cleaned, a cleaning member that contacts the surface to be cleaned may be attached to the tip of the rotating shaft. This allows the cleaning member to rotate while sliding on the surface to be cleaned, so that weeds growing on the surface to be cleaned can be cut, and the surface of the surface to be cleaned can be cleaned at the same time.

[0010] A cleaning attachment according to the present invention is attached to a tip of a drive arm of a construction machine, and moves on a surface to be cleaned with the movement of the drive arm to clean the surface to be cleaned. In order to achieve the second object, the main body is configured to be attachable to a tip of the drive arm, and is configured to be rotatable with respect to the main body. A cover member which is attached in a skirt shape having an opening on a side surface to form an internal space facing the surface to be cleaned, and is provided rotatably with respect to the main body in a state where an axial tip protrudes into the internal space. A rotating shaft; and a mowing cutter attached to the rotating shaft. The mowing cutter is rotated by the rotation of the rotating shaft to cut weeds present on the surface to be cleaned.

With the cleaning attachment constructed as described above, weeds can be cut more efficiently when weeds are cut while moving the drive arm along the surface to be cleaned. In other words, the weed to be cut can be guided from the side to the inside of the cover member through the opening, and cut, so that not only the cutting attachment is pressed from above but also the cut surface to cut the weed. Weeds can be cut while moving the drive arm along the surface to be cleaned. Further, since the cover member is rotatable with respect to the main body, the position of the opening can be arranged in the direction in which the drive arm moves with the movement of the drive arm. Therefore, it is not necessary to move the drive arm or the construction machine so that the opening is directed in the weed cutting direction, and the opening can be directed in the cutting direction by rotating the cover member.

A plurality of mowing cutters may be provided in multiple stages along the axial direction of the rotating shaft. By doing so, weeds can be cut while being finely cut, so that, for example, tall weeds can be reliably cut and cut regardless of the type of weeds. In addition, even when the weeds that have been cut are collected later, the weeds are finely cut, so that a reliable and efficient collection operation can be performed.

When there are many protrusions such as stones on the surface to be cleaned, if weeds are cut with a plate-like mowing cutter often used in a conventional mower, the cutter hits the protrusions. The cutting edge may be damaged. In such a case, of the plurality of mowing cutters mounted in a multi-stage, the lowermost cutter closest to the surface to be cleaned is
It may be constituted by a plurality of steel wires projecting radially in a direction substantially perpendicular to the axial direction of the rotating shaft. In this way, the rotating steel wire acts as a cutting blade to cut weeds. Even if the steel wire hits the protruding part during weeding, the steel wire is only bent and rarely damaged, and the bent steel wire is straightened again by centrifugal force due to rotation and returns to the original position. Recover to shape. Therefore, it is advantageous from the viewpoint of maintenance to configure the lowermost cutter with a steel wire.

When collecting the cut weeds,
Of the plurality of mowing cutters mounted in a multi-stage manner, the cutter located on the side opposite to the surface to be cleaned with respect to the lowermost stage cutter closest to the surface to be cleaned has a negative effect on the surface to be cleaned with rotation. A fin for generating pressure may be provided, and a suction duct extending from the internal space of the cover member to the outside of the apparatus may be provided. By doing so, only by rotating the cutter, a negative pressure is generated inside the cover member on the side of the surface to be cleaned, and suction of the cut weeds into the suction duct is promoted. Therefore, it is possible to reduce the size of the suction device, and it is not necessary to newly provide a wind power generation device such as a fan inside the cover member, and the harvested weeds can be easily collected without increasing the size of the device. be able to.

[0015]

FIG. 1 is a view showing a cleaning method using a cleaning attachment according to the present invention. This cleaning attachment is attached to the tip of a drive arm of a construction machine such as a power shovel to cut and collect weeds growing on a surface to be cleaned such as a seawall, a road side wall, a castle wall, and the surface of the surface to be cleaned. Cleaning is performed.

As shown in FIG. 1, this cleaning attachment is attached to the tip of a drive arm 11 of a construction machine 1 such as a power shovel. That is, the upper part of the cleaning attachment 2 is swingably attached to the tip of the drive arm 11 and also swingably attached to the tip of the hydraulic cylinder 12 attached to the drive arm 11. . Therefore, the hydraulic cylinder 1
By controlling the operation of the cleaning attachment 2, the angle of the cleaning attachment 2 with respect to the drive arm 11 can be adjusted, and the posture of the cleaning attachment 2 can be controlled so as to follow an inclination such as a seawall.

When the drive arm 11 is moved in the vertical and horizontal directions along the surface 3 to be cleaned, the attachment 2 for cleaning moves on the surface to be cleaned with the movement of the drive arm 11 to clean the shore and the like. Do. Therefore, even if the surface 3 to be cleaned is a slope, by moving the drive arm 11,
The cleaning operation can be performed efficiently and widely.

As will be described later, a mowing cutter and a cleaning member can be attached to the cleaning attachment 2 at the same time or individually, and depending on the application, weed cutting, surface cleaning such as revetment, and the like. Work can be performed simultaneously.

First, a first embodiment of the present invention will be described with reference to FIGS. In this embodiment,
FIG. 2 is a front cross-sectional view of the cleaning attachment, in which a mowing cutter is mounted on the cleaning attachment, FIG. 3 is a view taken along line AA of FIG. 2, and FIG. 4 is a view of the cleaning attachment. It is a front view. FIG. 6 is a cross-sectional view of FIG.
FIG. 4 is a cross-sectional view taken along a line B.

As shown in FIG. 2, the cleaning attachment 2 has a main body 4 swingably attached to the tip of the drive arm 11 and the tip of the hydraulic cylinder 12.
And attached to the outer periphery of the main body 4 in a skirt shape,
Cover member 5 forming internal space 21 facing surface 3 to be cleaned
A rotating shaft 6 provided rotatably with respect to the main body 4 in a state where the shaft tip protrudes into the internal space 21;
And a mowing cutter group 7 which is detachably mounted on the mower.

The main body 4 is composed of a disc-shaped bottom wall 41 and a housing 42 that covers the top of the bottom wall 41. The cover member 5 includes a ring-shaped outer frame 51 and an inner space 21.
And a side wall portion 52 forming the same. The outer frame 51 is slidably engaged with the outer periphery of the bottom wall 41 of the main body,
Further, on the outer periphery of the outer frame portion 51, a skirt-shaped side wall portion 52 is provided in a direction orthogonal to the bottom wall 41 of the main body portion 4. As shown in FIGS. 3 and 4, an opening 53 is provided in a part of the side wall 52. Through this opening 53, weeds are guided to the internal space 21, and a mowing cutter is provided. Reaped by group 7. Although the opening range of the opening 53 is arbitrary, in this embodiment,
As shown in FIG. 3, in view of the efficiency of cutting and preventing the wind for collecting weeds described later from spreading, the opening of the rotating shaft 6 is formed at an angle of about 120 ° with respect to the center of the rotating shaft 6. I have.

A bevel gear unit 43 connected to a motor and driven to rotate is disposed in a housing 42 of the main body 4, and the bevel gear 43 has teeth formed on the inner periphery of the outer frame 51. 44. When the bevel gear device 43 is rotationally driven, the outer frame portion 51 can be rotated with respect to the main body portion 4, and the opening portion 53 is displaced with this rotation.

The side wall 52 is made of an elastic material such as rubber, a resin film, or the like in order to allow the cleaning attachment 2 to flexibly abut against the surface 3 to be cleaned where many protrusions such as stones are present. May be made of a flexible material.

A motor 61 for rotating the rotating shaft 6 is disposed in the housing 42 of the main body 4.
The rotation shaft 6 driven to rotate by the motor 61 protrudes into the internal space 21 via a hole 45 formed in the bottom wall 41 of the main body 4. The rotary shaft 6 has a two-stage flange 62 for mounting the mowing cutter group 7,
63 is provided, and a fixing member 64 for attaching a cleaning member is provided at the distal end thereof as described in other embodiments. And flanges 62, 6
Three-stage mowing cutters 71, 72, 73 are detachably mounted in the axial direction via the fixing member 3 and the fixing member 64.

First, the lower cutter 71 will be described.
As shown in FIGS. 2 and 3, the lower cutter 71 is
It is constituted by a plurality of steel wires 711 projecting radially in a direction substantially perpendicular to the axial direction of the rotating shaft 6. This is particularly effective when cleaning a seawall with many irregularities. That is, in the case of a plate cutter frequently used in a conventional mowing machine, there is a possibility that the cutting blade may be damaged if the cutting blade hits a stone or the like while cutting the weeds. On the other hand, in the case of steel wire, when it is rotated, it acts like a cutting blade and can cut weeds, even if it hits a stone etc., it is unlikely to be damaged just by bending, and due to centrifugal force due to rotation From the bent state, it is restored to its original state. Therefore, configuring the cutter with a steel wire is very effective from the viewpoint of maintenance. As described above, in this embodiment, the cutter 71 is closest to the surface 3 to be cleaned, and corresponds to the “lowermost cutter” of the present invention.

Next, the middle cutter 72 will be described. The cutter 72 includes a disk portion 721 having a radius substantially equal to the rotation radius of the lower steel wire 711 and a plurality of steel wires 722 protruding radially from the outer periphery thereof and attached to be inclined downward. It is composed of As shown in FIG. 5, the disc portion 721 has a large number of substantially trapezoidal openings 723 each having a sharply formed inner periphery, and a triangular shape is provided on one side of each of the openings 723. A fin 724 having a shape is provided. When the cutter 72 rotates, the fins 724 generate a negative pressure on the surface 3 to be cleaned in the internal space 21. That is, an upward wind is generated in the internal space 21, and the weeds cut by the lower cutter 71 are blown upward by the wind. In addition, by inclining the steel wire 722 downward, the steel wire 722 reaches near the surface to be cleaned. For example, when a cleaning member described later is attached instead of the lower cutter 71, the root of the weed is cut off. You can also cut short weeds.

The upper cutter 73 is mounted on the disk portion 7.
31 and four plate-like cutters 732 radially mounted on the outer periphery of the cutter 31. Similar to the middle cutter 72, the disc portion 731 is provided with a substantially trapezoidal opening 733 and a triangular fin 734, and when the cutter 73 rotates, an upward wind is generated in the internal space 21.
That is, since the fins are provided in the upper and middle cutters, a larger wind force can be generated by rotating the cutters.

On the lower surface of the bottom wall 41 of the main body 4, as shown in FIG.
And a duct wall 47 surrounding a part of the periphery of the suction duct 46 and connecting to the outer periphery of the cover member 5 in a radial direction. Have been. With this configuration, the weeds cut and blown up above the internal space 21 are collected while hitting the duct wall 47 while rotating the internal space 21, and are collected from the suction duct 46 into the cleaning attachment 2. Efficiently discharged outside. In addition,
The suction duct 46 is connected to the hose 1 as shown in FIG.
The weeds, which are connected to the suction and recovery tank 14 provided on the power shovel 1 through the hose 3 and are cut and finely cut, are collected in the suction and recovery tank 14 through the hose 13.

Next, the operation of the cleaning attachment constructed as described above will be described with reference to FIGS. 1, 2, 4 and 7.
This will be described with reference to FIG.

First, as shown in FIG. 1, a power shovel 1 on which a cleaning attachment 2 is mounted is moved to a revetment or the like. Then, after the drive arm 11 is moved to bring the cover member 5 of the cleaning attachment 2 into contact with the surface 3 to be cleaned, such as a slope, the rotating shaft 6 is driven to rotate the cutter group 7 and the cover member 5. Moves the driving arm 11 so that the sliding arm contacts the surface 3 to be cleaned. Then, FIG.
As shown in (1), the weeds are guided from the opening 53 in the side wall portion 52 of the cover member 5 to the internal space 21, and the weeds are cut off. In this case, the work can be performed more efficiently by displacing the opening 53 so as to coincide with the moving direction of the drive arm 11. That is, as shown in FIG. 7, by rotating the cover member 5 and displacing the opening 53 in the moving direction of the drive arm 11, that is, in the weed cutting direction, the opening of the power shovel 1 itself is not moved. 53 can be oriented in the cutting direction. Of course, the operation of displacing the opening 53 can be performed on the operation panel of the power shovel 1.

As described above, in addition to moving the drive arm 11 so that the cleaning attachment 2 slides on the surface to be cleaned 3 to cut weeds, the cleaning attachment 2 to the surface 3 to be cleaned is not limited. You may cut down by pressing down from above. In this way, tall weeds can be gradually and finely cut from the tip toward the root.

Next, weeding operation in the internal space of the cleaning attachment will be described. As shown in FIG. 4, the root of the weed guided from the opening 53 of the cover member 5 to the internal space 21 is cut by the lower cutter 71, and the weed is guided by the middle and upper cutters 72 and 73. Is cut into multiple pieces.
Then, the cut weeds are blown upward while rotating in the internal space 21 by the wind force generated by the fins 724 and 734 provided in the middle and upper cutters 72 and 73.

In this process, weeds passing near the side wall portion 52 in the internal space 21 are further finely cut by the steel wire 722 and the plate-shaped cutter 732 in the rotating middle and upper cutters 72 and 73.
As shown in FIG. 5, the weeds passing near the rotating shaft 6 pass through the openings 723 and 733 formed in the disk portions 721 and 731 of the middle and upper cutters 72 and 73. Since the inner periphery of 723 and 733 is formed sharp and acts like a cutting edge,
The weed passing through 733 is further finely cut by the rotation of the cutters 72 and 73.

The weeds, which are finely cut and blown upward while rotating, are placed in the inner space 21.
While rotating on the upper wall, the dust is collected against the above-mentioned duct wall 47, and is sucked and discharged from the suction duct 46 to the outside of the cleaning attachment 2 via the hose 13.
Then, it is collected in a suction and collection tank 14 provided in the power shovel 1. Since the weeds collected in the suction / recovery tank 14 are finely cut, the weeds can be used as mulch, and the resources can be efficiently reused.

As described above, according to the cleaning attachment according to the first embodiment, the following effects can be obtained. That is, since the rotating mowing cutter group 7 is mounted in a multistage manner in the axial direction of the rotating shaft 6, even a tall weed can be cut while cutting the weed finely. As described above, when the weeds are collected, they are cut finely, so that suction is easy and efficient. Further, since the fins 724 and 734 are attached to the upper and middle cutters 72 and 73, when the cutter group 7 is rotated, a negative pressure is generated on the surface 3 to be cleaned and the suction duct 46 is removed. Can be generated, and the cut weeds can be effectively guided to the suction duct 46. Therefore, it is not necessary to increase the size of the suction device or to separately install a fan or the like for generating wind power for collecting the cut weeds in the internal space 21, so that the size of the device can be reduced.

The mowing cutter group 7 is detachably attached to the rotating shaft 6, so that any one of the stages may be removed depending on the application. It can be additionally installed. Further, in the above embodiment, the plate-like cutter 7 is attached to the upper cutter 73.
Although 32 is attached, it is not limited to this, and a steel wire may be attached.

Next, a second embodiment of the cleaning attachment according to the present invention will be described. The cleaning attachment according to this embodiment is provided with a cleaning member for cleaning a surface such as a seawall. The difference between this cleaning attachment and the first embodiment is that the mowing cutter mounted on the rotating shaft is removed, and a cleaning member is mounted on that part. The other configuration is almost the same. Therefore, hereinafter, the same components are denoted by the same reference numerals, and description of the configurations will be omitted.

FIG. 8 is a front sectional view for explaining the cleaning attachment according to this embodiment.
FIG. 3 is a plan view of a cleaning member used in this embodiment.

In this embodiment, as shown in FIG. 8, a cleaning member 8 is detachably mounted via a flange 62 on the tip side of a rotating shaft 6 having an axial end protruding into an internal space 21 of a cover member 5. I have. This cleaning member 8
As shown in FIG. 9, the support plate 81 includes a support plate 81 formed in a substantially cross shape in a plan view, and a brush portion 82 rotatably attached to the tip of each arm of the cross in the support plate 81. In addition, this brush part 82 is comprised by a nylon fiber brush or a wire brush, but is not limited to this. That is, for example, when cleaning the surface 3 to be cleaned, which is relatively easily damaged,
As shown in (1), a cleaning member 8 provided with a sponge (FIG. (A)) or a cloth brush (FIG. (B)) may be used.

Here, the support plate 81 is configured so that the long arm and the short arm are orthogonal to each other. By doing so, the portion attached to the tip of the long arm can be shortened by the brush attached to the tip of the long arm. The portion near the rotating shaft 6 can be simultaneously cleaned by the brush attached to the tip of the arm.

In this embodiment, as shown in FIG. 8, a pipe 9 for discharging water or washing water to the surface 3 to be cleaned is provided from the main body 4 side through a suction duct 46 to the internal space. 21. With this configuration, the surface to be cleaned 3 can be cleaned while supplying water or the like, and the cleaning effect can be enhanced.

Next, the operation of the cleaning attachment configured as described above will be described. As in the case of the first embodiment, the power shovel 1 to which the cleaning attachment 2 is attached is moved to a revetment or the like. Then, after the drive arm 11 is moved to bring the cleaning member 8 of the cleaning attachment 2 into contact with the surface 3 to be cleaned such as a slope, the rotating shaft 6 is driven to rotate the cleaning member 8 and to remove the cleaning water. It is discharged from the pipe 9 to the surface 3 to be cleaned.
Then, the drive arm 11 is moved so that the cleaning member 8 slides on the surface 3 to be cleaned. Then, the surface 3 to be cleaned is polished by the rotating brush portion 82, so that moss and dust can be removed. Further, since the cleaning water is supplied, the moss and the like of the surface 3 to be cleaned can be more reliably removed. can do.

As described above, according to the cleaning attachment according to the second embodiment, the cleaning attachment 2 having the rotating brush portion 82 at the tip of the drive arm 11 of the power shovel 1 is mounted. Conventionally, surface cleaning work such as revetment, which has been performed manually, can be efficiently performed over a wide range. That is, even on the slope of the revetment, since the drive arm 11 is moved to bring the cleaning member 8 such as a brush into sliding contact with the surface 3 to be cleaned, moss and dust can be easily removed. Then, by moving the positions of the drive arm 11 and the power shovel 1 main body, it is possible to efficiently perform surface cleaning over a wide range.

In each of the above embodiments, weed removal and surface cleaning on the surface 3 to be cleaned are performed independently, but these operations can be performed simultaneously.

That is, as shown in FIG. 11, the rotating shaft 6 of the cleaning attachment 2 used in the first embodiment is used.
The cleaning can also be performed by removing the fixing member 64 at the distal end and attaching the fixing member 10 with the brush. By doing this,
In addition to cutting and collecting the weeds growing on the surface 3 to be cleaned, the surface cleaning of the surface 3 to be cleaned to cut the weeds can be performed at the same time, so that the cleaning work on the revetment or the like can be performed very efficiently.

[0046]

As described above, according to the present invention, a rotating shaft driven to rotate is provided at the tip of a drive arm of a construction machine.
Since the mowing cutter attached to the rotating shaft and the cover member rotatably configured and having an opening on the side surface are provided, even if the surface to be cleaned is an inclined surface, the drive arm is moved. Meanwhile, weeds growing on the surface to be cleaned can be cut and guided by the inside of the cover member through the opening. In particular, when a plurality of mowing cutters are provided in multiple stages along the axial direction of the rotating shaft, weeds can be cut while cutting the weeds finely. Even if it is, it can be surely cut into small pieces and mowed. Even when the weeds that have been cut are collected later, the weeds are finely cut, so that a reliable and efficient collection operation can be performed.

Further, when a cleaning member that comes into contact with the surface to be cleaned is mounted on the tip of the rotating shaft on which the mowing cutter is mounted, weeds growing on the surface to be cleaned can be cut, and the surface of the surface to be cleaned can be cleaned at the same time. it can.

[Brief description of the drawings]

FIG. 1 is a view showing a cleaning method using a cleaning attachment according to the present invention.

FIG. 2 is a front sectional view of the cleaning attachment according to the first embodiment.

FIG. 3 is a view taken in the direction of arrows AA in FIG. 2;

FIG. 4 is a front view of the cleaning attachment according to the first embodiment.

FIG. 5 is an enlarged view of a mowing cutter in the cleaning attachment according to the first embodiment.

FIG. 6 is a sectional view taken along line BB of FIG. 2;

FIG. 7 is a diagram illustrating a cleaning operation using the cleaning attachment according to the first embodiment.

FIG. 8 is a front sectional view of a cleaning attachment according to a second embodiment.

FIG. 9 is a plan view of a cleaning member according to a second embodiment.

FIG. 10 is a front view showing a modification of the cleaning member according to the second embodiment.

FIG. 11 is a front sectional view showing a modification of the cleaning attachment according to the first embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Power shovel 2 ... Cleaning attachment 3 ... Cleaning surface 4 ... Body part 5 ... Cover member 6 ... Rotating shaft 7 ... Mowing cutter group 8 ... Cleaning member 11 ... Drive arm 21 ... Internal space 46 ... Suction duct 53 … Opening 71… (Lower) cutter 82… Brush 711,723… Steel wire 724,734… Fin 732… Plate cutter

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01D 34/412-34/90 B08B 1/04

Claims (6)

(57) [Claims] 1. A cleaning attachment that is attached to a tip of a drive arm of a construction machine, moves on a surface to be cleaned with the movement of the drive arm, and cleans the surface to be cleaned, wherein the tip of the drive arm is provided. A cover member that is attached to the outer periphery of the main body portion in a skirt shape and forms an internal space facing the surface to be cleaned; and a shaft protruding into the internal space. A rotating shaft rotatably provided with respect to the main body, a mowing cutter attached to the rotating shaft, a detachable structure attached to a distal end of the rotating shaft, and the cleaning object being mounted on the rotating shaft. A cleaning member that comes into contact with a surface, wherein the rotation of the rotating shaft rotates the mowing cutter and the cleaning member. A cleaning attachment characterized in that the grass cutter cuts the weeds present on the surface to be cleaned while cleaning the surface to be cleaned. 2. A cleaning attachment that is attached to a tip of a drive arm of a construction machine and moves on a surface to be cleaned with the movement of the drive arm to clean the surface to be cleaned, wherein the tip of the drive arm is provided. A main body configured to be attachable to the main body, an interior configured to be rotatable with respect to the main body, mounted in a skirt shape having an opening on a side surface on an outer periphery of the main body, and facing the surface to be cleaned. A cover member forming a space, a rotating shaft provided rotatably with respect to the main body in a state where an axial tip protrudes into the internal space, and a mowing cutter attached to the rotating shaft, A cleaning attachment, wherein the grass cutter is rotated by rotation of a rotating shaft to cut weeds existing on the surface to be cleaned. 3. The cleaning attachment according to claim 1 , further comprising a plurality of the mowing cutters, wherein the plurality of mowing cutters are multi-staged along the axial direction of the rotating shaft in the internal space. A cleaning attachment characterized by being attached to the rotating shaft in a shape. 4. The plurality of grass cutters, wherein a lowermost cutter closest to the surface to be cleaned is constituted by a plurality of steel wires radially protruding from the rotating shaft in a direction substantially orthogonal to the axial direction. The cleaning attachment according to claim 3 , wherein the cleaning attachment is provided. 5. A cutter positioned among the plurality of mowing cutters, which is located on a side opposite to the surface to be cleaned with respect to a lowermost cutter closest to the surface to be cleaned, has a surface facing the surface to be cleaned with rotation. 5. The cleaning attachment according to claim 3, further comprising a fin that generates a negative pressure with respect to the cleaning member. 6. extends to the outside of the apparatus from said internal space, yet further one of claims 1 to 5 with a suction duct which guides the clippings weeds by the cutter device outside from the inner space The cleaning attachment described.