JPH0929195A - Mat washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact mat washing machine which has excellent safety and operability, is free from the trouble of mat inclusion and has a high washing effect. SOLUTION: A machine body B is provided with a mat insertion part and a mat supporting table 21 in the part before this machine body. This mat supporting table 21 is provided with a brush roller 22 for washing the washing surface of the mat by rubbing the washing surface on the deep side of the table. A water feed pipe 26 for washing water is installed near this brush roller 22. The brush roller 22 is provided with a brush cover 23. This brush cover 23 normally covers the contact surface of the brush roller 22 with the mat. When the brush cover is pushed to the mat, the cover moves to the position where the contact surface of the brush roller 22 with the mat is exposed. The brush cover is provided with a weight as a means for resetting the brush cover to the position where the contact surface of the brush roller 22 with the mat is covered. The brush roller 22 is provided with a pair of squeezing rollers 29a, 29b for holding the mat and withdrawing the mat into the inside of the machine body on the side of the brush roller 22 deeper than the machine body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a matte washing machine for mats laid on the floor of a vehicle, and more particularly to a matte washing machine which is excellent in safety and operability and which is lightweight and compact.

[0002]

2. Description of the Related Art As a conventional mat washing machine, for example, there is one disclosed in Japanese Utility Model Laid-Open No. 48-84357. As shown in FIG. 7, the mat washing machine includes a pair of feed rollers 50a and 50b and a pair of squeezing rollers 51a and 51a.
51b are arranged at a predetermined interval, and a brush roller 52 for brushing the surface of the mat M is provided between the feed roller and the squeezing roller. Further, in the vicinity of the brush roller 52, a water supply pipe 54 for spraying cleaning water is provided in a contact portion between the mat M and the brush roller 52. In this case, the feed roller 50
To prevent the mat M sent to the brush roller 52 by a and 50b from being pushed back by the brush roller,
The rotation direction of the brush roller 52 is set in the forward direction with respect to the mat feeding direction.

In such a conventional mat washing machine, when the mat M to be washed is inserted between the pair of feed rollers 50a and 50b, the mat sandwiched between the feed rollers is
As the feed rollers 50a and 50b rotate, they are fed to the brush roller 52. Next, the mat M is cleaned while being rubbed by the rotating brush roller 52 while being sprayed with the cleaning water from the water supply pipe 54, and then the pair of squeezing rollers 51 provided at the subsequent stage of the brush roller 52.
The water is squeezed out by being pulled in by a and 51b and being pressed from both front and back sides.

However, in the conventional mat washing machine as described above, the mat M is sent to the feed rollers 50a and 50b.
Therefore, when the mat is fed to the brush roller 52, the trouble that the matte tip is caught by the brush roller before reaching the squeezing roller is likely to occur. In particular, a mat with soft fluff such as a carpet mat or a thin and stiff vinyl sheet mat is likely to be wound around the brush roller 52 before reaching the squeezing roller. Also, the brush roller 52
Since the rotation direction of is the same as the mat feeding direction,
In order to secure the relative speed between the mat M and the brush roller 52, it is necessary to rotate the brush roller at a high speed. However, when the brush roller is rotated at a high speed in this manner, dirty water after washing the mat is scattered by the brush roller and adheres to the surface of the washed mat, which stains it. Further, the feed rollers 50a, 5
Since both 0b and the squeezing rollers 51a and 51b are required, the number of parts increases and the apparatus becomes large.

An example of a matte washing machine developed to solve this problem is shown in Japanese Utility Model Publication No. 59-25520. FIG. 5 and FIG. 6 are side views before and during mat cleaning in this conventional mat cleaning machine, respectively.

Reference numeral 1a is a first squeezing roller which is supported by a machine body (not shown) and rotates counterclockwise in the figure, and a sponge-like elastic member 2 is provided on the peripheral surface thereof. On the front side of the first squeezing roller 1a, a brush roller 3 for cleaning the mat M is supported by the machine body so as to come into contact with the mat M and rotate. The rotation direction of the brush roller 3 is to move the mat M in a direction opposite to the drawing direction by the squeezing roller 1a and a second squeezing roller 1b described later. A water supply pipe 4 for supplying the cleaning water W to the brush roller 3 is provided near the brush roller 3.

A swinging frame body 5 is supported by the machine body through one end 6 thereof so as to be able to move up and down obliquely above the first aperture roller 1a. The first squeezing roller 1 is attached to the swing frame body 5.
A second squeezing roller 1b that rotates in contact with a to draw in the mat M, and a mat receiving plate 7 that contacts the non-cleaning surface of the mat M and presses the mat M against the brush roller 3 are provided. A sponge-like elastic member 2 is also provided on the peripheral surface of the second squeezing roller 1b, like the first squeezing roller 1a.

Next, the operation of the conventional mat washing machine will be described. Before washing the mat, as shown in FIG. 5, the swing frame body 5 is erected to separate the second squeezing roller 1b and the mat receiving plate 7 from the first squeezing roller 1a and the brush roller 3, respectively. On the other hand, when washing the mat,
With the cleaning surface of the mat M facing downward, its tip is placed on the first squeezing roller 1a and the brush roller 3,
The swinging frame body 5 as shown in FIG.
And the mat receiving plate 7 is brought close to the first squeezing roller 1a and the brush roller 3, respectively, and brought into contact with the non-cleaning surface of the mat M. When the rocking frame 5 is tilted, the drive switch (not shown) is closed and the first and second aperture rollers 1
a and 1b rotate counterclockwise and clockwise, respectively, and the brush roller 3 rotates clockwise. On the other hand, a water supply pump (not shown) is driven to supply the cleaning water W from the water supply pipe 4 to the brush roller 3. As a result, the mat M is rubbed and washed by the brush roller 3 while being drawn by the first and second squeezing rollers 1a and 1b, and the elastic member 2 of each squeezing roller squeezes out water.

In this conventional mat washing machine, since the brush roller 3 rotates in the direction opposite to the mat M retracting direction, the relative speed between the mat roller and the brush roller is high even if the brush roller is rotated at a low speed. The mat can be sufficiently rubbed with a brush roller, and the cleaning effect is excellent. Further, since the brush roller rotates at a low speed, the matte can be efficiently washed without splashing the dirty water after washing the mat and adhering to the washed surface of the mat. Further, since it is not necessary to specially provide a pair of feed rollers, the structure of the washing machine can be simplified and the weight and size can be reduced.

[0010]

However, the following problems have been pointed out in the above mat washing machine. First, there is a lack of consideration for safety.
That is, in the conventional mat washing machine, when the mat M is set on the brush roller 3, it is necessary to put a hand inside the machine and the brush roller 3 is exposed, which is dangerous. Secondly, the operability is poor and the operator feels a problem such as water splash. That is,
In the conventional example, the rocking frame body 5 has to be raised and lowered every time one mat is washed, which complicates the operation. Further, since the brush roller 3 is exposed, water splashes during mat cleaning, which hinders work.

The present invention has been proposed in order to solve the above-mentioned problems of the prior art, and its purpose is to be excellent in safety and operability, to be free from troubles involving winding of a mat, and to be washed. It is to provide a highly effective and compact matte washing machine.

[0012]

According to the first aspect of the present invention,
Rotating in contact with each other, a pair of squeezing rollers for drawing the mat sandwiched between them in one direction, and arranged on the front side as seen from the mat drawing direction of these squeezing rollers,
A mating surface of the brush roller that rotates in a direction that moves the mat in the opposite direction to the mating direction, a brush roller that cleans this mat, a water supply means for cleaning water that is provided in the vicinity of this brush roller, and the mat of the brush roller. And a brush cover that is movable in the retracting direction of the mat to a position where the contact surface of the brush roller with the mat is exposed, and the brush cover that has been moved to the exposed position of the brush roller, It is characterized by having means for returning to a position where the contact surface with the mat is covered.

In the invention according to claim 1 having such a structure, when the mat is inserted into the brush roller portion, the contact surface of the brush roller with the mat is covered with the brush cover in that state. Even if the hair has a long bristle or is thin, it will not be blocked by the tip of the brush. When the mat is further inserted, the brush cover is pushed and rotated by the friction between the mat and the brush cover, and the mat moves with the brush cover further into the back of the washing machine. When the tip of the moved mat reaches the squeezing roller portion, the tip of the mat is sandwiched by the pair of squeezing rollers, and the mat is drawn into the washing machine.

On the other hand, as a result of the brush cover being pushed and moved by the mat, the brush roller is exposed and comes into contact with the portion of the mat after the tip. In this case, the brush roller rubs the mat while rotating in the direction opposite to the mat movement direction, but the mat tip is already sandwiched between the pair of squeezing rollers and is moving, so the mat is pushed back to the insertion side. And the mat and brush roller are not entangled. As a result, the mat is washed with the brush roller and the washing water from the water supply means provided in the vicinity of the brush roller. The washed portion of the mat has its water content squeezed by a squeezing roller and is discharged to the outside of the washing machine. Then, when the rear end of the mat passes through the brush roller and does not press the brush cover, the brush cover is returned to its original position, that is, the position where the contact surface of the brush roller with the mat is covered, by the action of the restoring means provided therein. Return to and prepare for the next mat wash.

According to a second aspect of the present invention, the means for returning the brush cover is provided with an elastic means for urging the brush cover toward a position covering the contact surface of the brush roller with the mat. And In the present invention, the elastic means for elastically biasing the brush cover toward the original position with a constant force such as a spring or a damper is provided. Therefore, as a result of the mat passing through the brush cover portion, when the force from the mat is not applied to the brush cover, the force of the elastic means returns the brush cover to the original position and covers the contact portion of the brush roller with the mat. Therefore, the urging force of the elastic means does not prevent the brush cover from moving when the mat is inserted, and the moved brush cover overcomes its own weight and frictional resistance with the supporting member to restore the original state. It is so strong that you can do it.

According to a third aspect of the present invention, the means for returning the brush cover is provided with a weight for urging the brush cover toward a position covering the contact surface of the brush roller with the mat. To do. In this invention, when the force applied to the brush cover from the mat side disappears, the brush cover returns to the original position by the weight force. The weight of the weight is set so that a force similar to the biasing force of the elastic means can be applied to the brush cover.

According to a fourth aspect of the invention, a guide plate is disposed near the brush roller so as to sandwich the mat between the brush roller and the guide plate, and the guide plate is elastically supported toward the brush roller side. And an elastic support member. In this invention, since the mat is pressed against the brush roller by the guide plate, the mat is not lifted up and is rubbed by the brush roller with an appropriate strength. Further, since the guide plate is supported by the elastic support member, the guide plate can be pressed against the mat by hand, and it is possible to cope with a change in the thickness of the mat.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION One of the embodiments of the present invention will be described below with reference to FIGS. The same members as those of the conventional technique shown in FIGS. 5 and 6 are designated by the same reference numerals, and the description thereof will be omitted.

[Structure of First Embodiment] In the first embodiment, as shown in FIG. 1, each constituent device is arranged inside a box-shaped hollow body B. That is, the insertion portion 2 of the mat M is provided in the front portion of the machine body B.
0 is provided. The mat insertion portion 20 has a height slightly larger than the thickness of the mat and an opening wider than the width of the mat M, and is provided on the front surface of the machine body B. A table 21 that supports the mat from below is provided below the mat insertion portion 20.
The table 21 is provided from the outside of the machine body B to the vicinity of the inside of the brush roller, and guides the mat M inserted in the mat insertion portion 20 to the upper part of the brush roller. A brush roller 22 is provided on the front end side of the table 21 (back side of the machine body B). The brush roller 22 is rotatably supported by a support shaft 22a provided in the machine body, and is rotated by a driving unit (not shown) in the clockwise direction in the figure, that is, in the direction in which the mat is moved in the direction opposite to the inserting direction. As a drive means for the brush roller, a conventionally known means such as a chain, a belt or a gear for interlocking the motor as a drive source with the brush roller can be appropriately adopted.

The upper portion of the brush roller 22 serves as a contact portion with the mat during cleaning, and the brush cover 23 is provided so as to cover the contact portion. Both ends of the brush cover 23 have a support shaft 22a for the brush roller.
The brush cover 23 is fixed to a ring 23a which is rotatably fitted to the support shaft 2 together with the ring 23a.
The brush roller 22 can be rotated around the brush roller 22. An arm 24a is fixed to the side of the ring 23a opposite to the brush cover 23, and a weight 24 is attached to the tip of the arm 24a. This weight 24
Is such that the movement of the brush cover 23 when the mat is inserted is not hindered, and the moved brush cover 23 can be returned to its original state by overcoming its own weight and frictional resistance with the support shaft 22a. It is a weight that produces power. Further, near the brush cover 23, there is provided a stopper 25 for locking the brush cover 23 at a position covering the contact surface of the brush roller with the mat. The stopper 25 may be in direct contact with the brush cover 23, or may be in contact with the weight arm 24a, and the brush cover is in contact with the brush roller 22 or the force of the weight causes the insertion portion 20 side. Regulate not to overshoot.

In the vicinity of the brush roller 22, specifically between the tip of the table 21 and the brush roller 22, a water supply pipe 26 having a nozzle facing the brush roller 22 is provided as a means for supplying cleaning water. ing. An electromagnetic control valve and a water supply pump (not shown) are connected to the water supply pipe 26, and when the mat is inserted into the machine body, the control valve is opened / closed or the water supply pump is operated to wash water. It is designed to be supplied with water. Further, a guide plate 27 for pressing the mat M against the brush roller 22 is provided diagonally above the brush roller 22 so as to prevent the mat M from rising. A coil spring 28 that absorbs fluctuations in the thickness of the mat M is provided at the tip of the guide plate 27.

A pair of squeezing rollers 29a, 29 that are in contact with each other on the inner side of the brush roller and rotate and draw the mat sandwiched between them into the inside of the machine.
b is provided. These squeezing rollers 29a, 29b
Are rotatably supported by a support shaft provided in the machine body, and are rotated by drive means (not shown) in directions opposite to each other, that is, in a direction in which the sandwiched mat is moved to the rear side of the machine body. As the driving means for the squeezing rollers 29a and 29b, a means for transmitting a driving force from a motor, which is a driving source for the brush roller 22, by a chain, a belt, a gear, or a means having a dedicated driving source can be appropriately used. . Further, in the present embodiment, the brush roller 22 and the squeezing rollers 29a, 29b.
As the driving means, a driving switch such as a sensor or a limit switch provided inside the machine body is used to detect that the tip of the mat has been inserted into the machine body and start.

The central axes of the squeezing rollers 29a and 29b should be shifted back and forth with respect to the direction orthogonal to the mat M pulling direction, and the upper end of the brush roller 22 should be in contact with the squeezing rollers 29a and 29b. It is placed higher than the surface. The squeezing rollers 29a and 29b, the brush roller 22, and the water supply pipe 26
A recovery container 30 for recovering the wash water is provided below the, and a drain pipe (not shown) is provided in the recovery container 30.

[Operation of the First Embodiment] The matte cleaning machine of the present embodiment having such a structure operates as described below. That is, before cleaning the mat, as shown in FIG. 1, the brush cover 23 covers the contact portion of the brush roller 22 with the mat.

At the time of washing the mat, the tip of the mat M is placed on the upper surface of the table 21 with the surface to be washed facing downward, and the mat M is inserted into the machine body B from the insertion portion 20.
Insert on top of 3. Then, a drive switch (not shown) provided inside the machine detects the insertion of the mat, the squeeze rollers 29a and 29b rotate clockwise and counterclockwise, respectively, and the brush roller 22 rotates clockwise. . However, since the upper portion of the brush roller 22 is covered by the brush cover 23 at this point, the mat M does not contact the brush roller 22 and is pushed back toward the insertion portion side by the brush roller or is caught by the brush roller. Never. At the same time, the electromagnetic control valve and the water supply pump are driven, and the cleaning water is jetted from the water supply pipe 26 to the brush roller 22.

Next, the tip of the mat inserted on the brush cover 23 pushes the brush cover 23 while being pressed against the brush cover 23 by the guide plate 27, so that the friction between the two causes the brush cover 23 to squeeze the roller. 29
The mat ends are rotated by the rotation toward the a and 29b sides, and the mat ends are also pinched by the squeezing rollers 29a and 29b. By the rotation of the brush cover 23, as shown in FIG. 2, the upper portion of the brush roller 22 is exposed, and the surface of the mat M to be cleaned comes into contact with the brush roller 22. As a result, the mat M is rubbed and washed by the brush roller 22 while being drawn into the apparatus by the squeezing rollers 29a and 29b. Since the guide plate 27 is elastically supported by the coil spring 28, the brush roller 2 is pressed by pressing the guide plate 27 from above.
The pressing pressure of the mat M with respect to 2 can be adjusted.

Mat M after cleaning with a brush roller
Is squeezed from both sides by the squeezing rollers 29a and 29b, the dispersed water is squeezed out, and the water is discharged to the outside of the machine. At this time, the cleaning wastewater from the brush roller and the squeezing roller is collected in the collection container 30 and discharged to the outside of the machine body through the drainage pipe. On the other hand, the brush cover 23 is a mat M
Since the object that is being pressed disappears when the
Return to the original position by weight balance with 4. In this case, the return position of the brush cover is accurately positioned by contacting the stopper 25.

[Effects of the First Embodiment] In the first embodiment, the central axes of the upper and lower squeezing rollers 29a and 29b are displaced forward and backward with respect to the direction orthogonal to the drawing direction of the mat M. So, according to this, Table 2
By deciding the angle of 1, the mat will move in a curved state, the root part of the mat's bristles will be expanded, and the brush tip and wash water can easily reach there,
The dust that has entered the root part can be effectively discharged. Furthermore, the position of the upper end of the brush roller 22 is
Since it is arranged so as to be higher than the contact surfaces of the upper and lower squeezing rollers 29a and 29b, the mat M is washed during mat cleaning.
Is added, the contact pressure between the surface to be cleaned of the mat M and the brush roller 22 is increased, and the cleaning effect is improved.
In addition, since the brush roller rotates in the direction opposite to the mat movement direction, the relative speed between the brush roller and the mat is large, and even if the brush roller rotates at a slower speed than the conventional technology, the cleaning surface of the mat is not removed. You can surely rub.

According to the present embodiment, the tip of the mat M, which rotates the brush cover 23, is not washed by the brush roller 22, but in reality, the tip and the rear end of the mat are dirty. There is no, and it does not matter in particular. Also, after passing through the mat washing machine once, the mat may be inserted from the opposite side and washed again, which is also often done in practice.

[Configuration of Second Embodiment] Next, the second embodiment will be described with reference to FIGS. 3 and 4. In the second embodiment, as a means for returning the brush cover 23, an elastic means, specifically, a spring-type constant force spring 60 is used.
(For example, trade name Conston) is used. Further, the squeezing rollers 29a, 2 whose surface is covered with an elastic body.
In order to prevent the deformation of 9b and the sticking due to freezing, the squeezing rollers 29a and 29b can be opened when not in use.

That is, in the second embodiment,
A case of the spiral spring constant load spring 60 is fixed to the machine body B, and a tip end of a strip-shaped spring plate pulled out from the case is attached to a ring 23 a supporting the brush cover 23.

On the other hand, a lever 71 is provided on a support shaft 70 provided on the machine body B, and a cam 73 is provided on the support shaft 70. Further, as an example, the airframe B has a bracket 75 that is generally L-shaped coaxially with the support shaft of the brush roller.
Is rotatably provided, and the lower squeezing roller 29b is supported at one end of the bracket 75. A roller 76 is provided on the other end of the bracket 75, and the roller 76 is arranged so as to be able to come into contact with and separate from the cam 73 provided on the support shaft 70. The bracket 75 is constantly urged upward by a spring 77 provided between the bracket 75 and the machine body B, that is, in the direction in which the two squeezing rollers 29a and 29b come into contact with each other.

One end of a coil spring 28 for supporting the guide plate 27 is locked to the machine body B. The guide plate 27 is rotatably supported on the machine body B by a fulcrum 27a at the upper end thereof, but the rear part of the machine body is curved according to the outer shape of the brush roller 22.

[Effects of the Second Embodiment] In the second embodiment having the above-mentioned structure, the brush cover 23 is constantly fixed by the spring type constant force spring 60 (for example, Conston brand name). It is pulled in the turning direction by the torque. Therefore, in the state before the mat is inserted as shown in FIG. 3, the brush cover 23 covers the contact surface of the brush roller 22 with the mat.

To clean the mat, insert the mat into the machine body and tilt the lever 71 toward you.
Rotates. When the cam 73 is rotated and separated from the roller 76, the bracket 75 is rotated clockwise by the force of the spring 77, and the lower squeezing roller 29b supported by the bracket 75 is lifted to move upward. It contacts the roller 29a. At the same time, the rotation of the lever 71 causes the brush roller 22 and the squeezing rollers 29a, 2
When the switch 9b is turned on and these rollers start to rotate, the valve of the water supply pipe 26 is opened and the cleaning water is sprayed to the brush rollers.

When the mat is inserted between the table 21 and the guide plate 27 in such a state, as shown in FIG. 4, the brush cover 23 is pushed by the mat M and counteracts the pulling force of the constant force spring 60. It rotates in the counterclockwise direction and the contact surface of the brush roller 22 with the mat is exposed. And
After the mat is inserted between the upper and lower squeezing rollers 29a and 29b, the mat is drawn into the machine body by the force of the squeezing rollers and washed by the brush rollers, as in the first embodiment. After that, when the mat passes the brush roller 22 and no force is applied to the brush cover 23, the brush cover 23 is swung by the pulling force of the constant force spring 60 and returns to its original position.

As described above, according to the second embodiment, a constant restoring force can be applied to the brush cover 23 at all times. Therefore, even if the brush cover 23 pivots largely, the restoring force hinders the progress of the mat. Never. Further, as compared with the one using the weight as in the first embodiment, the occupying space is small, and the device can be downsized. Further, when the mat is not washed, the squeezing rollers 29a and 29b are opened so that the squeezing roller is not deformed even after being left for a long time, and even if water adhering to the squeezing roller freezes in winter, There is no fear that the squeezing roller will become unrotatable. Further, the guide plate normally presses the mat against the brush roller 22 by its own weight offset to some extent by the pulling force of the coil spring 26. However, by pressing the guide plate against the coil spring 26 against the mat by hand, The contact pressure between the brush roller and the brush roller can be adjusted.

[Other Embodiments] In the illustrated embodiment, the brush cover 23 is configured to return to its original position by a weight balance mechanism and a constant force spring, but this is not always the case. You don't have to. For example, the urging force of an elastic means such as a coil spring, a mainspring spring, or a damper may be used to restore the original position. Further, a means for bringing the tip of the brush roller 22 and the inner surface of the brush cover 23 into contact with each other and returning them by the rotational force of the brush roller 22 can be considered. In these cases as well, as shown in the illustrated embodiment, it is desirable to provide a stopper for positioning when returning to the original state.

[0039]

As described above, according to the present invention, when the mat is washed, it is not necessary to put a hand inside the washing machine when the mat is set, and the brush roller is not exposed. It is expensive and the worker can work with peace of mind. Further, since the brush cover is provided, the trouble that the mat is reliably drawn into the washing machine and caught by the brush roller does not occur, and in particular, a soft mat or a thin mat such as a carpet mat can be easily washed.

[Brief description of drawings]

FIG. 1 is a side view showing a first embodiment of a mat washing machine of the present invention, showing a state before washing a mat.

FIG. 2 is a side view showing the first embodiment of the mat washing machine of the present invention, showing a state during mat washing.

FIG. 3 is a side view showing a second embodiment of the mat cleaning machine of the present invention, showing a state before cleaning the mat.

FIG. 4 is a side view showing the second embodiment of the mat cleaning machine of the present invention, showing a state during cleaning of the mat.

FIG. 5 is a side view showing a state before cleaning the mat in the conventional mat cleaning machine.

FIG. 6 is a side view showing a state in which a mat is being washed in a conventional mat washing machine.

FIG. 7 is a side view showing the configuration of another conventional matte washing machine.

[Explanation of symbols]

 M ... Mat B ... Machine body 20 ... Mat insertion portion 21 ... Table 22 ... Brush roller 23 ... Brush cover 24 ... Weight 25 ... Stopper 26 ... Water supply pipe 27 ... Guide plate 28 ... Coil spring 29a, 29b ... First and second apertures Roller 30 ... Collection container 60 ... Constant load spring 70 ... Spindle 71 ... Lever 73 ... Cam 75 ... Bracket 76 ... Roller 77 ... Spring

Claims (4)

[Claims] 1. A pair of squeezing rollers that rotate in contact with each other and draw a mat sandwiched between them in one direction, and a pair of squeezing rollers arranged on the front side of the squeezing rollers when viewed from the mat drawing direction, and the mat is drawn into the mat. Rotating in the direction of moving in the direction opposite to the direction, a brush roller for cleaning the mat, a water supply means for cleaning water provided in the vicinity of the brush roller, and a contact surface of the brush roller with the mat are covered, In addition, the brush cover that is movable in the retracting direction of the mat to the position where the contact surface of the brush roller with the mat is exposed, and the brush cover that has moved to the exposed position of the brush roller, contact the mat of the brush roller. A matte washing machine having means for returning to a position for covering a surface. 2. The means for returning the brush cover comprises elastic means for urging the brush cover toward a position for covering the contact surface of the brush roller with the mat. Matte washing machine. 3. The means for returning the brush cover comprises a weight for urging the brush cover toward a position for covering the contact surface of the brush roller with the mat. Matte washing machine. 4. A guide plate disposed near the brush roller so as to sandwich the mat between the brush roller and an elastic support member elastically supporting the guide plate toward the brush roller. The matte washing machine according to claim 1, 2, or 3, characterized in that.