JP6936102B2 - Car wash device - Google Patents

Description

INDUSTRIAL APPLICABILITY According to the present invention, a pair of left and right side brushes are provided on a gate-shaped car wash device body that travels across a car, moves along the car while rotating as the car wash device body runs, and brushes and cleans the side surface of the car. A device that can safely avoid this and continue brushing washing even when a situation occurs in which a side brush is caught and brushing cannot be performed normally, especially in a door mirror or the like projected on the side surface of an automobile. Is to provide.

Conventionally, as this type of car wash device, as in Patent Document 1, a pair of left and right car wash devices are provided on a gate-type car wash device body that travels across a car, and along the car while rotating as the car wash device body runs. In a car wash device equipped with a side brush that moves and brushes the side surface of an automobile, when the side brush is caught by a door mirror, the side brush is reversed to release the catch so that brushing cleaning can be continued. ing.

Further, as in Patent Document 2, in a car wash device also provided with a side brush, when the side brush is caught by the door mirror, the side brush is separated from the vehicle body surface, and when the side brush passes the door mirror position as the car wash machine body travels. , A device is known in which the side brush is returned to the vehicle body surface and brushing is performed while the car wash machine body is retracted.

Japanese Unexamined Patent Publication No. 2011-57106 Japanese Unexamined Patent Publication No. 2013-112230

In the car wash device described in Patent Document 1, even if the side brush is caught by the door mirror, the brushing cleaning is continued and the catch is released. The side brush is reversed from the state where the side brush and the door mirror are firmly in contact with each other. Therefore, there is a risk that the door mirror may be damaged by applying an excessive load or the door mirror may be displaced.

Further, in the car wash device described in Patent Document 2, even if an attempt is made to separate the side brush from the vehicle body while the side brush is caught on the door mirror, the contact between the side brush and the door mirror may be strong and the separation operation may not be smooth. There was a danger that the car would stop abnormally and the car wash would be interrupted, or that the door mirrors would be overloaded.

The present invention addresses the above problems and operates the side brushes to separate them from the vehicle body before they are caught in the door mirrors, and when the side brushes cannot smoothly separate from the vehicle body surface, the car wash device is used. The car wash device is provided so as to be retracted so as to prevent the side brushes from coming into strong contact with the door mirrors so as not to give a strong load to the door mirrors.

In addition, if the side brush gets caught in the door mirror, the rotation of the side brush is stopped to dissipate the load on the door mirror, the side brush is separated from the vehicle body, and the car wash device body is retracted. It is an object of the present invention to provide a car wash device capable of reducing the load of the side brush on the door mirror by releasing the contact between the side brush and the door mirror.

The present invention is a car wash device provided in a pair of left and right sides of a gate-type car wash device body that travels across a car and provided with a side brush that brushes and cleans the side surface of the car while rotating as the car wash device body runs. A driving means for moving the left and right side brushes so as to approach and separate from each other, a means for detecting that the side brushes are retracted to a predetermined position when the side brushes are separated from the vehicle body surface by the driving means, and an automobile side surface. If the side brush does not retract to the predetermined position given by the detection means at a predetermined timing when the side brush is retracted from the vehicle body during the brushing cleaning, the car wash device main body is retracted and the side brush is retracted to the predetermined position. The above-mentioned problems are solved by providing a means for controlling the evacuation.

Here, the above-mentioned operation of retracting the side brush from the vehicle body during brushing cleaning of the side surface of the automobile is an operation of avoiding brushing to the door mirror of the automobile, and is provided on the main body of the car washing device so as to be retractable on the upper surface of the automobile. In a device provided with a top brush for brushing and cleaning, the operation may be performed when brushing and cleaning the front glass portion of an automobile while retracting the main body of the car wash device.

Further, in a car wash device provided in pairs on the left and right sides of a gate-type car wash device that travels across a car and equipped with side brushes that brush and wash the side surface of the car while rotating as the car wash device body runs, the left and right sides A driving means for moving the side brushes so as to approach and separate from each other, a means for detecting that the side brushes are retracted to a predetermined position when the side brushes are separated from the vehicle body surface by the driving means, and a car wash for the side brushes. The side brush was displaced in the front-rear direction by the displacement detection means by the means for detecting the displacement of the device main body in the front-rear direction by a predetermined value or more and during the brushing cleaning of the side surface of the automobile accompanying the running of the car wash machine body. When this is detected, operations such as (a) stopping the running of the car wash device and stopping the rotation of the side brushes, or (b) separating the left and right side brushes from the vehicle body are performed in sequence to move the front and rear of the side brushes. The above-mentioned problems are solved by providing a means for eliminating the displacement in the direction and then controlling the brushing cleaning of the automobile to be restarted.

Further, in a car wash device provided in pairs on the left and right sides of a gate-shaped car wash device body that travels across a car and equipped with side brushes that brush and wash the side surface of the car while rotating as the car wash device body runs, the left and right sides A driving means for moving the side brushes so as to approach and separate from each other, a means for detecting that the side brushes are retracted to a predetermined position when the side brushes are separated from the vehicle body surface by the driving means, and a car wash for the side brushes. The side brush was displaced in the front-rear direction by the displacement detection means by the means for detecting the displacement of the device main body in the front-rear direction by a predetermined value or more and during the brushing cleaning of the side surface of the automobile accompanying the running of the car wash machine body. When it is detected, (a) the running of the car wash device body is stopped and the rotation of the side brushes is stopped, (b) the left and right side brushes are separated from the vehicle body, or (c) the car wash device body is retracted. The above-mentioned problems are solved by providing a means for sequentially performing operations to eliminate the displacement of the side brush in the front-rear direction and then controlling to restart the brushing cleaning of the automobile.

The present invention is configured as described above, and when avoiding brushing to the door mirror of an automobile, even if the side brush is operated to be separated from the vehicle body surface at the position of the door mirror, the side brush reaches a predetermined position. When the car wash device is not retracted, the main body of the car wash device is retracted so that the side brush is retracted to a predetermined position so as not to apply an excessive load to the door mirror by the side brush.

In addition, if the car to be washed is a car model such as a wagon car or a jeep that has a relatively steep windshield, it is necessary to raise the top brush at a high speed with respect to the windshield, and sufficient brushing cannot be performed. The windshield of an automobile may be brushed and washed while the main body is retracted, but even if an unnecessary side brush is retracted to a predetermined position, the side brush cannot be retracted to a predetermined position due to pressure contact with a door mirror or the like. It may stop abnormally. In this case as well, the main body of the car wash device is retracted without abnormal stop, and the side brush is retracted to a predetermined position so as not to apply an excessive load to the door mirror by the side brush.

Further, in the present invention, when it is detected that the side brushes are displaced in the front-rear direction more than a predetermined value, the car wash device main body is first stopped from running and the side brushes are stopped from rotating, and then the left and right side brushes are separated from the vehicle body. , Etc. are sequentially performed to eliminate the displacement of the side brush in the front-rear direction, and even if the side brush is caught in the door mirror etc., the side brush is not forcibly reversed or pulled away from the vehicle body, so the side is placed on the door mirror etc. Do not apply excessive load with the brush.

Further, in the present invention, when it is detected that the side brushes are displaced in the front-rear direction more than a predetermined value, the car wash device main body is first stopped and the side brushes are stopped from rotating, and the left and right side brushes are separated from the vehicle body. By sequentially performing operations such as retracting the main body of the car wash device to eliminate the displacement of the side brushes in the front-rear direction, the door mirrors and the like are not overloaded with the side brushes.

It is a front explanatory view of an Example. It is a side explanatory view of the Example. It is explanatory drawing which shows the structure of the side brush in an Example. It is a block diagram which shows the control system in an Example. It is a flowchart explaining the control procedure in an Example. It is a flowchart explaining the control procedure in another Example. It is explanatory drawing which shows the partial operation of the side brush in the Example of FIG. It is a flowchart explaining the control procedure in another Example. It is explanatory drawing which shows the operation of each brush in the Example of FIG.

Hereinafter, the embodiment will be described with reference to the drawings.
FIG. 1 is a front explanatory view of the embodiment, and FIG. 2 is a side explanatory view of the embodiment. Reference numeral 1 denotes a gate-shaped car wash device main body, which reciprocates on rails 2 and 2 and performs a car wash process on automobile C entering between rails 2 and 2. Top brush 3 is located on the front side of the main body 1 and moves up and down along the upper surface of the automobile C to brush the upper surface. A side brush for brushing the front and rear surfaces and side surfaces of C. Although not particularly shown, the car wash device main body 1 is provided with a watering nozzle that discharges washing water and a liquid agent toward the automobile C and a drying nozzle that blows air toward the automobile C, and travels across the automobile C to drive the automobile. The body surface of C is brushed and washed, and then dried by a drying nozzle.

Reference numeral 5 denotes an operation panel provided on the front surface of the car wash device main body 1, for inputting selection of a desired car wash course, input for starting car wash, and the like. Reference numeral 6 denotes a vehicle-shaped sensor provided at the front end of the main body 1 of the car wash device, which detects the side shape of the automobile C. By detecting the range blocked by the vehicle body surface, the side shape of the automobile C is read. Reference numeral 7 denotes an elevating drive unit of the top brush 3, and 8 is a rotation drive unit of the top brush 3. The top brush 3 is moved up and down and rotated according to the side shape of the automobile C to perform brushing cleaning of the upper surface of the automobile C. Reference numerals 9 and 9 are traveling drive units for traveling the car wash device main body 1.

FIG. 3 is an explanatory diagram showing the configuration of the side brushes 4 and 4 in the embodiment. The side brushes 4 and 4 are suspended from carriers 11 and 11 that slide on the rail 10 passed to the upper part of the car wash device main body 1, are provided so as to be movable along the rail 10, and move so as to approach and separate from each other. Both ends of the rail 10 are pivotally supported on the left and right sides of the top of the car wash device 1, and the side brushes 4 and 4 can swing back and forth via the carriers 11 and 11 as the rail 10 rotates. It is elastically held by a spring (not shown), and has a structure that keeps the side brushes 4 and 4 in a substantially hanging state. 12 and 12 are contact and separation drive units consisting of air cylinders that operate the side brushes 4 and 4 so as to approach and separate from each other. By sliding the carriers 11 and 11 via a known link mechanism (not shown), the side brushes 4 and 4 Move 4 Here, the side brushes 4 and 4 stand by at positions separated from each other as shown in the drawing, and are moved in a direction approaching each other when the car wash starts and brushing is performed. Reference numerals 13 and 13 are rotational drive units for the side brushes 4 and 4 provided on the carriers 9 and 9.

14 and 14 are detectors including limit switches that detect the positions of the side brushes 4 and 4, and detect that the side brushes 4 and 4 are retracted to a predetermined standby position. As described above, the rail 10 is pivotally supported by the car wash machine body, the side brushes 4 and 4 tilt according to the load in the front-rear direction, and 15 is a limit for detecting the tilt of the rail 10. A detector consisting of a switch detects that the side brushes 4 and 4 are tilted in the front-rear direction due to contact with the automobile C or the like.

FIG. 4 is a block diagram showing a control system in the embodiment. Reference numeral 20 denotes a control unit including a microcomputer. Based on the signals from the operation panel 5, the vehicle shape sensor 6, and the detectors 14, 14, 15, each of the above drive units 7, 8, 9, 9, 12, according to the program. It operates 12/13/13 to give a car wash operation. The control unit 20 is provided with a vehicle shape detection unit 21 that reads the side shape of the vehicle C based on the signal from the vehicle shape sensor 6, and the vehicle type of the vehicle C is not limited to the side shape of the vehicle C depending on the read vehicle shape. The position of the front glass, the inclination of the front glass, the position of the door mirror, etc. are detected.

FIG. 5 is a flowchart showing the operation procedure of the embodiment. In response to the input of the setting for avoiding brushing to the door mirror D on the operation panel 5, the side brushes 4 and 4 are automatically operated at the door mirror D position of the automobile C. The procedure for avoiding the operation is shown. The vehicle shape detection unit 21 reads the side surface shape of the automobile C, specifies the windshield position from the side surface shape, and estimates the position of the door mirror D based on the specified windshield position. When the control unit 20 detects that the side brushes 4 and 4 have reached the position of the door mirror D given by the vehicle shape detection unit 21, the control unit 20 executes the avoidance operation shown in FIG.

In FIG. 5, when the control unit 20 detects that the side brushes 4 and 4 have reached the position of the door mirror D, the drive units 12 and 12 operate the side brushes 4 and 4 so as to separate them from the vehicle body (1). .. Here, when the side brushes 4 and 4 are separated from the vehicle body without any problem and the detectors 14 and 14 detect that the side brushes 4 and 4 have opened to the standby position within a predetermined time (2), the rotation of the side brushes 4 and 4 is stopped (2). 3) Hold the door mirror D in the standby position until it can be cleared. After that, when it is detected that the side brushes 4 and 4 have reached a position where they do not come into direct contact with the door mirror D (4), the rotation of the side brushes 4 and 4 is restarted and the side brushes 4 and 4 are brought closer to the vehicle body (5), and brushing is restarted. ..

If the side brushes 4 and 4 do not move to the standby position even after the lapse of a predetermined time in step (2), it is determined that the side brush has been caught, the running of the car wash device main body 1 is stopped, and the side brushes 4 and 4 are stopped. Stop the rotation (6). Here, by stopping the running of the main body 1 and the rotation of the brushes 4 and 4, the brushes 4 and 4 are often eliminated from being caught by their own weight and the like, and the detectors 14 and 14 open to the standby position. When this is detected (7), the running of the car wash device main body 1 is restarted (8). On the other hand, if the brushes 4 and 4 do not open to the standby position in step (7), the car wash device main body 1 is retracted (9), whereby the brushes 4 and 4 are opened to the standby position by the detectors 14 and 14. After confirming that (10), the retreat of the main body 1 is stopped (11), and the running of the car wash device main body 1 is restarted (8).

The automatic avoidance operation of brushing on the door mirror D is executed as described above. If the side brushes 4 and 4 are caught in contact with the door mirror D and the like and the avoidance operation cannot be performed smoothly, the car wash device main body 1 runs and the side brush The rotation of 4 and 4 is stopped to reduce the load on the door mirror D and the like. Here, if the side brushes 4 and 4 cannot be avoided, the car wash device main body 1 is retracted to eliminate the catch, and if this is resolved, the car wash operation is quickly restarted. In this way, even if the side brushes 4 and 4 are caught on the door mirror D, the load on the door mirror D can be quickly reduced and eliminated without stopping the entire car washing operation.

FIG. 6 is a flowchart showing another operation procedure of the embodiment, in which the car wash is executed without input of the setting for avoiding brushing to the door mirror D on the operation panel 5, and the brushing to the door mirror D is performed on the operation panel 5. The operation procedure when the detector 15 detects that the input of the setting to be avoided is tilted by a predetermined value or more in the front-rear direction is shown. 7A and 7B are partial explanatory views when the side brushes 4 and 4 are caught by the door mirror D, FIG. 7A is a side explanatory view, and FIG. 7B is a plan explanatory view.

In FIG. 6, when the detector 15 detects that the side brushes 4 and 4 are tilted by a predetermined value or more during the car wash operation accompanied by the brushing operation by the side brushes 4 and 4, the car wash device main body 1 is first stopped and the side is stopped. The rotation of the brushes 4 and 4 is stopped (12). Here, the reason why the rotation of the side brushes 4 and 4 is stopped is to reduce the load on the door mirror D and the like on which the brush is caught, and to release the urging of the drive unit (motor) 13 and 13 to the side. This is because the brushes 4 and 4 can rotate freely according to the load so that the state of being caught on the door mirror D or the like can be easily eliminated. That is, as shown in FIG. 7, the side brushes 4 and 4 are displaced from the hooked state a to the disengaged state b by stopping the rotation of the brushes 4 and 4, and the hooking is eliminated. There are many.

With the main body running stopped and the brush rotation stopped in step (12), the drive units 12 and 12 are operated to open the side brushes 4 and 4 to the left and right and retract them from the vehicle body (13). Here, when the side brushes 4 and 4 are separated from the vehicle body without any problem and the detectors 14 and 14 detect that the side brushes 4 and 4 have opened to the standby position within a predetermined time (14), the car wash machine main body 1 is restarted (15). ), After traveling a certain distance that can clear the door mirror D and detecting that the side brushes 4 and 4 have reached a position where they do not come into direct contact with the door mirror D (16), the rotation of the side brushes 4 and 4 is restarted and the vehicle approaches the vehicle body. (17), and restart brushing.

If the catch of the side brushes 4 and 4 is not released in step (14) and the detectors 14 and 14 cannot detect that the side brushes 4 and 4 have opened to the standby position, the car wash device main body 1 is retracted to release the catch (18). ). When the side brushes 4 and 4 are separated from the door mirror D and the hooks are released as the main body 1 retracts, and the detectors 14 and 14 detect that the brushes 4 and 4 have opened to the standby position (19), the car wash device main body 1 The retreat is stopped (20), and then steps (15) to (17) are executed to restart the running of the main body 1 and restart brushing with the brushes 4 and 4.

When the side brushes 4 and 4 are caught by the door mirror D, they operate as described above to automatically release the catch. When the brushes 4 and 4 are caught, the main body 1 runs immediately. The rotation of the brushes 4 and 4 is stopped to extinguish the load on the door mirror D, etc., and the catch is released as shown in FIG. 7. If the catch is still observed, the main body 1 is retracted by a predetermined distance. After completely releasing the hook, brushing is restarted.

FIG. 8 is a flowchart showing another operation procedure of the embodiment, and if the side shape of the car to be washed is read by the car shape sensor 6 and the tilt of the read windshield portion exceeds a predetermined angle. , Judging that there is a possibility that the control to raise the top brush 3 along the inclination may not be in time for the running of the car wash device main body 1, an operation called return wash for brushing and cleaning the windshield part while retracting the main body 1 is performed. It is controlled to perform, and the operation procedure when performing this return wash is shown. 9A and 9B are explanatory views of the operation of the top brush 3 and the side brushes 4 and 4 accompanying the return wash, FIG. 9A is a side explanatory view, and FIG. 9B is a plan explanatory view.

In FIG. 8, when the vehicle shape sensor 6 detects that the inclination of the windshield portion is equal to or greater than a predetermined value, the top brush 3 is retracted to the upper standby position (21), and the car wash device main body 1 is brushed by the side brushes 4 and 4. While doing this, drive the car from the front to the rear. When it is determined that the top brush 3 has reached the position of the roof of the automobile as the main body 1 runs (22), the running of the main body 1 is stopped, the top brush 3 is lowered, and the side brushes 4 and 4 are moved to the left and right. Evacuate to the standby position (23). Here, the signals from the detectors 14 and 14 are checked, and it is detected whether or not the brushes 4 and 4 have been able to evacuate to the standby position within a predetermined time (24). Set the flag (25).

In the processing in steps (24) and (25), when the top brush 3 reaches the roof of the automobile, the side brushes 4 and 4 are located near the door mirror of the automobile, and the side brushes 4 and 4 are caught by the door mirror. The operation is checked in consideration of the possibility that the evacuation cannot be performed smoothly. If a catch is detected here, an avoidance action is performed so that the catch does not occur in the subsequent operation. Even if the side brushes 4 and 4 are caught here, the main body 1 will retract in the return wash routine that is continuously executed, and the catch will be released naturally, so measures such as abnormal stop are required. There is no such thing as.

In this way, when the top brush 3 reaches the position of the roof of the automobile, the top brush 3 is rotated while retracting the main body 1 to execute a return wash routine for brushing and cleaning the windshield portion (26). In this return wash, the top brush 3 is lowered along the vehicle shape while the main body 1 is retracted, and the windshield portion is brushed and washed. The side brushes 4 and 4 are retracted to the standby position to operate the top brush 3. Does not interfere. When the position where the top brush 3 is retracted is reached in step (21) due to the retracting of the main body 1, the retracting of the main body 1 is stopped and the top brush 3 is retracted upward again, and the return wash routine (26) is performed. finish.

When the return wash is completed, the car wash device main body 1 is driven forward again (27), and when it is detected that the top brush 3 reaches the position where the top brush 3 reaches the roof of the automobile, that is, the position where the return wash is started (28), the top The brush 3 is lowered to start brushing the upper surface of the automobile (29). At the same time, in step (25), it is checked whether or not the catching flag is set (30), and if it is not set, the side brushes 4 and 4 are moved to the vehicle body side and brushing on the side surface of the vehicle body is restarted (32). ). On the other hand, when the flag set is detected in step (30), the side brushes 4 and 4 are held in the standby position until the position where the door mirror D is cleared (31), and the side brushes 4 and 4 do not act on the door mirror D. The brushing of the side surface of the vehicle body is restarted from (32).

When cleaning a car with a steeply sloping windshield such as a wagon car, it can be safely brushed by return wash as described above, and even if the side brushes 4 and 4 get caught in the door mirror D etc. Since the trapped state is released by the return wash, it is not necessary to stop the car wash device abnormally, and the car wash can be continued smoothly and safely. In this embodiment, the vehicle shape sensor 6 detects the inclination of the windshield of the vehicle and executes the return wash. However, regardless of this, the vehicle type is input to the operation panel 5 according to the vehicle type input or the like. It is also possible to set and execute a procedure such as executing a return wash if the vehicle type is a wagon vehicle.

1 Car wash device body 3 Top brush 4 ・ 4 Side brush 12 ・ 12 Drive means for moving side brush 4 ・ 4 14 ・ 14 Detection means for detecting that side brush 4 ・ 4 has retracted to a predetermined position 15 Side brush 4 ・Detection means for detecting that 4 is tilted in the front-back direction 20 Control unit as a control means

Claims (5)

In a car wash device equipped with a pair of left and right side brushes provided on the main body of a gate-type car wash device that travels across a car and brushes and cleans the side surface of the car while rotating as the car wash device body runs.
A driving means for moving the left and right side brushes so as to approach and separate from each other, a means for detecting that the side brushes are retracted to a predetermined position when the side brushes are separated from the vehicle body surface by the driving means, and an automobile side surface. If the side brush does not retract to the predetermined position given by the detection means at a predetermined timing when the side brush is retracted from the vehicle body during the brushing cleaning, the car wash device main body is retracted and the side brush is retracted to the predetermined position. A car wash device provided with means for controlling evacuation. The car wash device according to claim 1, wherein the operation of retracting the side brush from the vehicle body during brushing of the side surface of the automobile is an operation of avoiding brushing to the door mirror of the automobile. In the car wash device according to claim 1, the operation of retracting the side brush from the vehicle body during brushing and cleaning of the side surface of the automobile is a car wash device provided on the main body of the car wash device so as to be movable up and down and provided with a top brush for brushing and cleaning the upper surface of the automobile. Therefore, the car wash device is characterized in that the operation is the same as the operation of the side brush when the front glass part of the automobile is brushed and washed with the top brush while the main body of the car wash device is retracted. In a car wash device equipped with a pair of left and right side brushes provided on the main body of a gate-type car wash device that travels across a car and brushes and cleans the side surface of the car while rotating as the car wash device body runs.
A driving means for moving the left and right side brushes so as to approach and separate from each other, a means for detecting that the side brushes are retracted to a predetermined position when the side brushes are separated from the vehicle body surface by the driving means, and a side brush. Is provided with a means for detecting that the car wash device body is displaced in the front-rear direction by a predetermined value or more, and a control means for giving control of a and b below based on signals from both of the detection means. Car wash device.
a. When the displacement detecting means detects that the side brush is displaced in the front-rear direction by the displacement detecting means during brushing of the side surface of the automobile accompanying the running of the car wash machine body, the running of the car wash device body is stopped and the rotation of the side brush is stopped. When the displacement of the side brush in the front-rear direction is eliminated, the brushing cleaning of the side surface of the automobile is controlled to be restarted.
b. In the control a, if the displacement of the side brushes in the front-rear direction is not eliminated, the left and right side brushes are separated from the vehicle body, and if it is detected that the side brushes are retracted to a predetermined position, the brushing of the automobile is performed. Control to resume cleaning. In a car wash device equipped with a pair of left and right side brushes provided on the main body of a gate-type car wash device that travels across a car and brushes and cleans the side surface of the car while rotating as the car wash device body runs.
A driving means for moving the left and right side brushes so as to approach and separate from each other, a means for detecting that the side brushes are retracted to a predetermined position when the side brushes are separated from the vehicle body surface by the driving means, and a side brush. Is provided with a means for detecting that the car wash device body is displaced in the front-rear direction by a predetermined value or more, and a control means for giving control of a to c below based on signals from both of the detection means. Car wash device.
a. When the displacement detecting means detects that the side brush is displaced in the front-rear direction by the displacement detecting means during brushing of the side surface of the automobile accompanying the running of the car wash machine body, the running of the car wash device body is stopped and the rotation of the side brush is stopped. When the displacement of the side brush in the front-rear direction is eliminated, the brushing cleaning of the side surface of the automobile is controlled to be restarted.
b. In the control a, if the displacement of the side brushes in the front-rear direction is not eliminated, the left and right side brushes are separated from the vehicle body, and if it is detected that the side brushes are retracted to a predetermined position, the brushing of the automobile is performed. Control to resume cleaning.
c. If the control b cannot detect that the side brush has retracted to a predetermined position, the car wash device main body is retracted, and if it is detected that the side brush has retracted to a predetermined position, the automobile is brushed and washed. Control to resume.

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