JP2013112019A - Car washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a car washing machine which can reduce an unwashed area of a deck of a trailer.SOLUTION: The car-washing machine WA which comprises a body 1 traveling forward and backward along a washed vehicle CA, a side brush 5 supported by the body 1 to slide on a side of the washed vehicle CA, a brush moving part 23 making the side brush 5 contact with and to separate from the washed vehicle CA, and a current detection part 26 detecting a driving current of the side brush 5, contains an initial setting period in which a rotating side brush 5 is made to approach the washed vehicle CA by the brush moving part 23 to be brought into contact with the washed vehicle CA by the detection of the current detection part 26 after the side brush 5 is situated in a start position S1 opposed to the deck 103 by the traveling of the body 1 when washing the deck 103 of a trailer, and a front washing period in which the side brush 5 is moved by a predetermined distance L2 toward the front of the washed vehicle CA with respect to the start position S1 by the traveling of the body 1 with the side brush 5 brought into contact with the washed car CA.

Description

  The present invention relates to a car wash machine that cleans a cargo bed portion of a trailer with a side brush.

  A conventional car wash machine for washing a to-be-washed vehicle including a large vehicle including a trailer is disclosed in Patent Document 1. This car wash machine includes a gate-shaped main body that travels forward and backward with respect to the vehicle to be cleaned across the vehicle to be cleaned. The main body is provided with a top brush facing the upper surface of the vehicle to be cleaned and a side brush facing the side surface. Each of the top brush and the side brush is rotationally driven by a motor, and moves so as to approach and separate from the vehicle to be cleaned by a moving device.

  When washing a trailer in which the loading platform is connected to the cabin via the connecting portion, the main body of the car washer is moved and disposed at the first predetermined position and the second predetermined position set in advance. At the first predetermined position, the sensor provided on the side portion of the main body portion faces the connecting portion, and the sensor that is detected from the side is in an undetected state. At the second predetermined position, the sensor faces the loading platform, and the sensor enters a detection state. Thereby, it is detected that the vehicle type of the vehicle to be cleaned is a trailer.

  Next, when the main body travels from the second predetermined position toward the rear of the vehicle to be cleaned and the top brush is arranged at the start position facing the vehicle to be cleaned, the top brush contacts the vehicle to be cleaned by the moving device. . Further, when the side brush is disposed at the start position facing the vehicle to be cleaned, the side brush contacts the vehicle to be cleaned by the moving device. The main body travels behind the vehicle to be cleaned while the side brush and the top brush are in contact with the vehicle to be cleaned, and cleaning is performed.

  Normally, the car wash of the trailer is performed by washing the loading platform, and the cabin is not damaged by the top brush and the side brush.

  According to the above car wash machine, if the side brush is brought close to the vehicle to be cleaned when facing the connecting portion, there is a risk that the side brush enters the inner side of the side surface of the loading platform and contacts the piping or the like. Further, if the side brush is brought close to the vehicle to be cleaned when facing the cabin, the cabin is damaged.

  For this reason, it is necessary that the side brush is surely opposed to the loading platform at the start position and brought close to the vehicle to be cleaned. At this time, when the main body portion is moved from the first predetermined value to the second predetermined position, the side brush can be disposed at the start position so as to face the cargo bed portion by detecting the front end of the cargo bed portion with a sensor.

  However, since the vehicle type of the vehicle to be cleaned can be set by the user, if the sensor is omitted for cost reduction, the front end of the loading platform cannot be detected. In general, a vehicle sensor that detects the rear end of the vehicle to be cleaned from above is provided on the ceiling of the main body, but it is difficult to detect the boundary between the connecting portion and the loading platform from above. For this reason, in the trailer generally used, the starting position where the loading platform is surely arranged is stored in advance, and the side brush is arranged at the starting position.

  FIG. 7 is a top view showing the operation of the side brush of this car wash machine. A to-be-cleaned vehicle CA including a trailer has a cabin 101, a connecting portion 102, and a loading platform 103, and is arranged at a predetermined stop position. Thereby, the car wash machine can grasp the front end position of the vehicle to be cleaned CA.

  The main body of the car washer before the car wash waits in front of the vehicle to be cleaned CA, and at that position, the side brush 5 is located at a retracted position S0 in front of the vehicle to be cleaned CA. When the car wash is started, the side brush 5 moves toward the rear of the vehicle to be cleaned CA as indicated by an arrow A1 by the traveling of the main body of the car wash machine. Thus, the side brush 5 is disposed at the start position S1 that is separated from the front end of the vehicle to be cleaned CA by a predetermined distance L1. The distance L <b> 1 is stored in advance, and the start position S <b> 1 is a position where the side brush 5 reliably faces the loading platform 103 in a general trailer.

  Next, the rotating side brush 5 moves in the left-right direction as indicated by an arrow A2, and is brought close to the vehicle CA to be cleaned. When it is detected that the side brush 5 has come into contact with the vehicle to be cleaned CA due to an increase in the drive current of the side brush 5, the movement of the side brush 5 in the left-right direction is stopped. Thereby, the side brush 5 is arranged at the contact position S2 that is a position closer to the vehicle to be cleaned CA than the start position S1 in the vehicle width direction of the vehicle to be cleaned CA.

  Next, while the side brush 5 rotates while maintaining the position in the vehicle width direction of the vehicle CA to be cleaned at the contact position S2, the side brush 5 moves toward the rear of the vehicle CA to be cleaned as indicated by an arrow A3 by the travel of the main body. Thereby, the loading platform 103 is cleaned. When the side brush 5 comes out of the rear end of the vehicle CA to be cleaned (S10), the cleaning of the vehicle CA to be cleaned is finished.

Japanese Patent Laid-Open No. 10-6936 (pages 2-5, FIG. 7)

  However, according to the latter car wash machine, the distance L1 is set to be sufficiently away from the front end of the vehicle to be cleaned CA in order to ensure that the side brush 5 at the start position S1 faces the loading platform 103 of various trailers. . For this reason, there is a problem that an unwashed region T (see FIG. 7) is formed in front of the start position S1 depending on the shape of the trailer.

  An object of this invention is to provide the car wash machine which can reduce the unwashed area | region of the bed part of a trailer.

In order to achieve the above-mentioned object, the present invention has a main body that travels back and forth along a vehicle to be cleaned including a large vehicle including a trailer having a cargo bed connected to a cabin, and a vertical rotating shaft supported by the main body. A car washer comprising: a side brush that slides on a side surface of the vehicle to be cleaned; a brush moving unit that moves the side brush toward and away from the vehicle to be cleaned; and a current detection unit that detects a drive current of the side brush. In cleaning the trailer bed,
After the side brush is disposed at a start position facing the loading platform by traveling of the main body, the rotating side brush is brought close to the vehicle to be cleaned by the brush moving unit, and the current brush is detected to detect the side brush. An initial setting period for contacting the vehicle to be cleaned with
A front cleaning period is provided in which the side brush is moved by a predetermined distance toward the front of the vehicle to be cleaned with respect to the start position by running of the main body while the side brush is in contact with the vehicle to be cleaned.

  According to this configuration, the initial setting period starts when an instruction to clean the trailer bed is given. In the initial setting period, the side brush is disposed at the start position by traveling in the front-rear direction of the main body, and faces the loading platform. The side brush facing the loading platform is brought close to the loading platform by the brush moving unit. When the drive current of the side brush exceeds a predetermined value by the current detection unit, the brush moving unit is stopped. Thereby, a side brush contacts a loading platform part, an initial setting period is complete | finished, and washing | cleaning is performed by driving | running | working of a main-body part. At this time, a forward cleaning period is provided, and the side brush moves a predetermined distance toward the front of the vehicle to be cleaned with respect to the start position by running of the main body. Thereby, the bed part ahead of the start position is washed.

  Further, in the car wash machine having the above-described configuration, the present invention shifts to the front washing period after the end of the initial setting period, and reverses the main body after the end of the front washing period to bring the side brush into contact with the vehicle to be washed. In this state, the vehicle is cleaned by moving it toward the rear of the vehicle to be cleaned.

  According to this configuration, the side brush that has contacted the loading platform during the initial setting period moves to the front of the vehicle to be cleaned during the forward cleaning period, and the loading platform ahead of the start position is cleaned. When the front cleaning period ends, the main body portion reverses and travels toward the rear of the vehicle to be cleaned, and the cargo bed portion behind the start position is cleaned.

  According to the present invention, in the car wash machine having the above-described configuration, after the initial setting period, the main body is moved toward the rear of the vehicle to be cleaned while being washed with the side brush, and the main body is reversed. After performing cleaning behind the start position, the process proceeds to the front cleaning period.

  According to this configuration, the side brush that has contacted the loading platform during the initial setting period moves toward the rear of the vehicle to be cleaned as the main body travels, and the loading platform behind the start position is cleaned. When cleaning is performed up to the rear end of the vehicle to be cleaned, the main body portion is reversed and travels toward the front of the vehicle to be cleaned, and the cargo bed portion behind the start position is cleaned again. Thereafter, the main body portion continues to move to the front of the vehicle to be cleaned in the forward cleaning period, and the cargo bed portion in front of the start position is cleaned.

  Further, the present invention is characterized in that, in the car wash machine configured as described above, the front washing period ends when the main body reaches a movement amount stored in advance after the front washing period starts. According to this configuration, when the front washing period starts and the main body moves by a movement amount stored in advance, the front washing period ends. The amount of movement is set to a distance at which the side brush does not reach the cabin.

  Further, the present invention is characterized in that, in the car wash machine having the above-described configuration, the front washing period is ended when the driving current of the side brush is lowered below a predetermined value by the current detection unit. According to this configuration, the side brush that contacts the loading platform moves to the front of the vehicle to be cleaned during the front cleaning period. When the driving current of the side brush falls below a predetermined value, it is determined that the side brush has moved away from the loading platform, and the front cleaning period ends.

  Further, the present invention is characterized in that, in the car wash machine having the above configuration, the start position is set to 4.8 m or more from the front end of the vehicle to be cleaned.

  According to the present invention, when cleaning the loading platform portion of the trailer, the side brush approaches and comes into contact with the vehicle to be cleaned from the starting position facing the loading platform portion, and the side brush is placed in front of the vehicle to be cleaned with respect to the starting position. Since the front cleaning period for moving a predetermined distance is provided, it is possible to reduce the uncleaned area ahead of the start position.

The side view which shows the car wash machine of 1st Embodiment of this invention. The front view which shows the car wash machine of 1st Embodiment of this invention. The block diagram which shows the structure of the car wash machine of 1st Embodiment of this invention. The top view which shows the locus | trajectory of the side brush at the time of the trailer car wash of the car wash machine of 1st Embodiment of this invention. The top view which shows the locus | trajectory of the outward path of the side brush at the time of the car wash of the trailer of the car wash machine of 2nd Embodiment of this invention. The top view which shows the locus | trajectory of the return path of the side brush at the time of the trailer washing of the car wash machine of 2nd Embodiment of this invention Top view showing the trajectory of the side brush when washing a trailer of a conventional car wash machine

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 are a side view and a front view showing an overall schematic configuration of the car wash machine according to the first embodiment of the present invention. The car wash machine WA is configured to wash large vehicles such as trailers, buses, and trucks. The car wash WA includes a main body 1, a rail 2, and a remote panel 60 (see FIG. 3). The main body 1 has two left and right stand portions 90 and a ceiling portion 91 that connects the upper ends of the stand portions 90, is formed in a gate shape, and is disposed so as to straddle the vehicle to be cleaned CA.

  The pair of left and right rails 2 are laid on the ground, and wheels 3 provided on the bottom surface of the main body 1 are arranged on the rails 2. As a result, the main body 1 travels on the rail 2 by the driving of the travel motor 25 (see FIG. 3) and moves relative to the vehicle CA to be cleaned back and forth.

  The remote panel 60 (see FIG. 3) is arranged on the approach path of the main body 1. The to-be-cleaned vehicle CA stops in front of the remote panel 60, and receives the car wash, selects the type of large vehicle, sets the car wash conditions, etc. by operating the remote panel 60.

  The main body 1 is provided with a plurality of rotating brushes that slide on the vehicle to be cleaned CA and perform brushing. The rotating brush includes a top brush 4 and a side brush 5. The top brush 4 is rotationally driven by a top brush drive motor 4a (see FIG. 3). The side brush 5 is rotationally driven by a side brush drive motor 5a (see FIG. 3).

  The top brush 4 is formed by radially fixing brush hairs (not shown) made of cloth (woven fabric, knitted fabric, nonwoven fabric, etc.) or resin fibers on a horizontal rotating shaft (not shown) supported by the main body 1. The The rotation axis of the top brush 4 is connected to a top brush lifting / lowering motor 24 (see FIG. 3) via a wire (not shown). The top brush 4 is moved up and down by driving the top brush lifting motor 24, and is brought into and out of contact with the vehicle CA to be cleaned. Thereby, the top brush 4 moves along the vehicle CA to be cleaned, and the upper surface of the vehicle CA to be cleaned is cleaned by the sliding of the top brush 4.

  A pair of side brushes 5 is provided on the left and right sides, and brush hair similar to the top brush 4 is formed on a vertical rotation shaft (not shown) supported by the main body 1. Both side surfaces of the vehicle CA to be cleaned are cleaned by the sliding of the side brush 5. The rotating shaft of the side brush 5 is connected to a side brush moving motor 23 (see FIG. 3) via an arm (not shown). By driving the side brush moving motor 23, the side brush 5 moves in a direction perpendicular to the traveling direction of the main body 1 and contacts and separates from the vehicle CA to be cleaned. Accordingly, the side brush moving motor 23 constitutes a brush moving unit that brings the side brush 5 into and out of contact with the vehicle CA to be cleaned. In addition, you may provide the rocker brush which wash | cleans the side part lower part containing the tire of the to-be-cleaned vehicle CA.

  A vehicle sensor 8 is provided on the front upper portion of the main body 1. The vehicle sensor 8 includes a photoelectric sensor, an ultrasonic sensor, and the like, and detects an outer surface shape of the vehicle CA to be cleaned that enters the main body 1. Thereby, the vehicle length of the to-be-cleaned vehicle CA is detected and the travel range of the main body 1 is determined.

  An operation panel 7 is disposed on the front surface of one stand 90 of the main body 1. The operation panel 7 includes operation buttons similar to those of the remote panel 60, and accepts a car wash, selects a model of a large vehicle, and sets a car wash condition and the like by operations of a user who gets off the vehicle to be cleaned CA.

  FIG. 3 is a block diagram showing the configuration of the car wash machine WA. The car wash WA includes a control unit 10 that controls each unit. The control unit 10 includes an operation panel 7, a remote panel 60, a vehicle sensor 8, a current detection unit 26, a storage unit 9, a travel motor 25, a top brush drive motor 4a, a side brush drive motor 5a, a top brush lift motor 24, and a side brush. A moving motor 23 is connected. The control unit 10 has a built-in timer for measuring time.

  The current detector 26 is a driving current for the top brush drive motor 4a (hereinafter simply referred to as “driving current for the top brush 4”) and a driving current for the side brush driving motor 5a (hereinafter simply referred to as “driving current for the side brush 5”). Is detected. Thereby, the load at the time of rotation of the top brush 4 and the side brush 5 is detected.

  The storage unit 9 includes a RAM and a ROM, stores an operation program executed by the control unit 10 and control data, and temporarily stores a calculation result of the control unit 10.

  Although not shown, the main body 1 is provided with an injection nozzle that injects city water, shampoo, wax, and the like onto the vehicle CA to be cleaned, and a blower that dries the vehicle CA to be cleaned after cleaning.

  In the car wash machine WA configured as described above, the main body 1 travels in the front-rear direction with respect to the vehicle to be cleaned CA based on the set car wash conditions. Then, city water or a liquid agent is sprayed from the various nozzles to the vehicle to be cleaned CA, and each rotary brush provided on the main body 1 slides on the vehicle to be cleaned CA to clean the vehicle to be cleaned CA. The to-be-cleaned vehicle CA after washing is dried by blowing air from the blower. Thereby, the car wash of the to-be-washed vehicle CA is completed.

  FIG. 4 is a side view showing the trajectory of the side brush 5 when the trailer bed is cleaned. A to-be-cleaned vehicle CA including a trailer has a cabin 101, a connecting portion 102, and a loading platform 103, and is arranged at a predetermined stop position. Thereby, the car wash machine WA can grasp the front end position of the vehicle CA to be cleaned. The front end position of the vehicle CA to be cleaned may be detected by the vehicle sensor 8 when the main body 1 is traveling.

  The main body 1 before washing is waiting in front of the vehicle to be cleaned CA, and the side brush 5 is located at the retracted position S0 in front of the vehicle to be cleaned CA. When cleaning of the loading platform 103 is instructed, an initial setting period is started. During the initial setting period, the side brush 5 moves toward the rear of the vehicle to be cleaned CA as indicated by an arrow A1 by the travel of the main body 1. Thus, the side brush 5 is disposed at the start position S1 that is separated from the front end of the vehicle to be cleaned CA by a predetermined distance L1.

  The distance L1 is stored in advance in the storage unit 9, and the start position S1 is a position where the side brush 5 reliably faces the loading platform 103 in a general trailer. For example, the distance L1 is set to 4.8 m or more because the maximum length of a trailer that pulls a container having a total length of 40 feet (about 12.2 m) that can be used in Japan is 17 m.

  The side brush 5 at the start position S1 is rotationally driven and moved in the left-right direction as indicated by an arrow A2 by the side brush moving motor 23 so as to approach the vehicle to be cleaned CA. When an increase in the driving current of the side brush 5 is detected by the current detection unit 26 and it is detected that the side brush 5 has come into contact with the vehicle CA to be cleaned, the side brush moving motor 23 is stopped. As a result, the side brush 5 is disposed at the contact position S2 where it contacts the loading platform 103, and the initial setting period ends.

  When the initial setting period ends, the front cleaning period starts. During the forward cleaning period, the side brush 5 moves toward the front of the vehicle to be cleaned CA as indicated by an arrow A5 while rotating while maintaining the position in the vehicle width direction of the vehicle to be cleaned CA at the contact position S2 as the main body 1 travels. To do. As a result, the loading platform 103 in front of the start position S1 is cleaned. When the main body unit 1 reaches the movement amount L2 stored in the storage unit 9 in advance after starting the front cleaning period (S3), the front cleaning period ends.

  The movement amount L2 is determined in a range where the side brush 5 does not contact the cabin 101. Moreover, when the drive current of the side brush 5 becomes lower than a predetermined value as detected by the current detection unit 26, it may be determined that the side brush 5 has moved away from the loading platform 103 and the front cleaning period may be ended. At this time, in consideration of erroneous detection of the current detection unit 26, when the maximum movement amount of the main body unit 1 is set and the movement amount is reached, the forward cleaning period is ended regardless of the detection result of the current detection unit 26. May be.

  When the forward cleaning period ends, the main body 1 reverses and the side brush 5 moves toward the rear of the vehicle CA to be cleaned as indicated by an arrow A3. As a result, the loading platform 103 located behind the start position S1 is cleaned. When the side brush 5 comes out of the rear end of the vehicle CA to be cleaned by the detection of the vehicle detection unit 8 (S10), the cleaning of the vehicle CA to be cleaned is finished. Thereafter, the vehicle to be cleaned CA is dried by the blower, the main body 1 is retracted from the vehicle to be cleaned CA, and the side brush 5 is returned to the retracted position S0.

  According to the present embodiment, when cleaning the trailer platform 103, the side brush 5 approaches the vehicle to be cleaned CA from the start position S1 facing the platform 103, and the side brush 5 is moved to the start position S1. On the other hand, since the front cleaning period in which the vehicle is moved by a predetermined distance L2 toward the front of the vehicle to be cleaned CA is provided, the uncleaned region T (see FIG. 7) ahead of the start position S1 can be reduced.

  In addition, since the front cleaning period is entered after the end of the initial setting period, and the main body is reversed and cleaned after the end of the front cleaning period, the loading platform 103 at the front and rear of the start position S1 can be easily cleaned. it can.

  Further, since the front cleaning period ends when the main body 1 reaches the movement amount L2 stored in advance after the front cleaning period starts, the contact between the side brush 5 and the cabin 101 can be easily prevented. .

  In addition, since the forward cleaning period ends when the current detection unit 26 reduces the driving current of the side brush 5 below a predetermined value, the contact between the side brush 5 and the cabin 101 can be easily prevented. Further, the front end of the loading platform 103 can be reliably washed.

  Further, since the start position S1 is set to 4.8 m or more from the front end of the vehicle CA to be cleaned, the side brush 5 can be reliably opposed to the loading platform 103 at the start position S1.

  Next, the car wash machine WA of the second embodiment will be described. 5 and 6 are top views showing the trajectory of the side brush 5 when the trailer bed 103 is washed by the car wash machine WA of this embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. This embodiment is configured similarly to the first embodiment, and the loading platform 103 is cleaned by reciprocating the main body 1 at the time of washing the trailer. FIG. 5 shows a forward path state of the main body 1, and FIG. 6 shows a backward path state of the main body 1.

  As shown in FIG. 5, when the cleaning of the loading platform 103 is instructed, the initial setting period is started in the same manner as described above. That is, the side brush 5 moves as shown by the arrow A1 and is arranged at the start position S1, and moves as shown by the arrow A2 and arranged at the contact position S2. Thereby, the initial setting period ends.

  When the initial setting period ends, the side brush 5 moves toward the rear of the vehicle to be cleaned CA as indicated by an arrow A3 as the main body 1 travels. As a result, the loading platform 103 located behind the start position S1 is cleaned. When the side brush 5 is disposed at the rear end position S4 of the vehicle CA to be cleaned by the detection of the vehicle detection unit 8, the cleaning of the outward path is completed and the main body unit 1 is inverted.

  As shown in FIG. 6, the side brush 5 moves toward the front of the vehicle CA to be cleaned as shown in FIG. As a result, the loading platform 103 behind the start position S1 is washed again. When the side brush 5 reaches the contact position S2, the main body portion 1 continues to travel toward the front of the vehicle to be cleaned CA by shifting to the front cleaning period.

  Thereby, as the side brush 5 rotates, it moves toward the front of the vehicle CA to be cleaned as indicated by the arrow A5, and the loading platform 103 ahead of the start position S1 is cleaned. When the main body unit 1 reaches the movement amount L2 stored in the storage unit 9 in advance after starting the front cleaning period (S3), the front cleaning period ends and the return path cleaning ends. In the return path, the to-be-cleaned vehicle CA is dried by a blower disposed behind the side brush 5 in the traveling direction of the main body 1 while being cleaned.

  Next, the side brush 5 moves in the left-right direction as indicated by an arrow A6 by the side brush moving motor 23, and leaves the vehicle to be cleaned CA. As the main body 1 travels, the side brush 5 returns to the retracted position S0 as indicated by an arrow A7, and the cleaning of the vehicle CA to be cleaned ends.

  According to the present embodiment, as in the first embodiment, since the front cleaning period in which the side brush 5 is moved by the predetermined distance L2 toward the front of the vehicle to be cleaned CA with respect to the start position S1 is provided, the start position S1 Further, the uncleaned region T (see FIG. 7) ahead can be reduced.

  In addition, after the initial setting period is over, the main body 1 is moved toward the rear of the vehicle to be cleaned CA to perform cleaning, and the main body 1 is reversed to perform cleaning behind the start position S1, and then forward Since it shifts to the cleaning period, the loading platform 103 at the front and rear of the start position S1 can be easily cleaned.

  In the first embodiment, the same return path cleaning as in the second embodiment may be performed. In the second embodiment, as in the first embodiment, a front cleaning period may be provided after the end of the initial setting period, and the front cleaning from the start position S1 may be performed twice.

  ADVANTAGE OF THE INVENTION According to this invention, it can utilize for the car wash machine which wash | cleans the loading platform part of a trailer with a side brush.

DESCRIPTION OF SYMBOLS 1 Main-body part 2 Rail 3 Wheel 4 Top brush 5 Side brush 7 Operation panel 8 Vehicle sensor 9 Memory | storage part 10 Control part 23 Side brush moving motor 24 Top brush raising / lowering motor 25 Traveling motor 60 Remote panel 90 Stand part 91 Ceiling part WA Car wash machine CA vehicle to be cleaned

Claims (6)

A main body that travels back and forth along a vehicle to be cleaned including a large vehicle including a trailer having a cargo bed connected to a cabin, and a side that slides on the side of the vehicle to be cleaned with a vertical rotating shaft supported by the main body In a car wash machine comprising a brush, a brush moving unit that moves the side brush toward and away from the vehicle to be cleaned, and a current detection unit that detects the drive current of the side brush, ,
After the side brush is disposed at a start position facing the loading platform by traveling of the main body, the rotating side brush is brought close to the vehicle to be cleaned by the brush moving unit, and the current brush is detected to detect the side brush. An initial setting period for contacting the vehicle to be cleaned with
A car washer having a front cleaning period in which the side brush is moved by a predetermined distance toward the front of the vehicle to be cleaned with respect to the start position by running of the main body while the side brush is in contact with the vehicle to be cleaned.   After the end of the initial setting period, the process proceeds to the front cleaning period, and after the front cleaning period ends, the main body is reversed and the side brush is moved toward the rear of the vehicle to be cleaned while being in contact with the vehicle to be cleaned. The car wash machine according to claim 1, wherein the car wash is performed.   After the end of the initial setting period, the main body is moved toward the rear of the vehicle to be cleaned and the side brush is used for cleaning, and the main body is inverted and the rear of the start position is cleaned. The car wash machine according to claim 1, wherein the car wash machine moves to the forward washing period.   The car wash machine according to any one of claims 1 to 3, wherein the front washing period ends when the main body reaches a movement amount stored in advance after the front washing period starts. .   5. The car wash machine according to claim 1, wherein the front washing period is ended when the driving current of the side brush is lower than a predetermined value by the current detection unit.   The car wash machine according to any one of claims 1 to 5, wherein the start position is set to 4.8 m or more from a front end of the vehicle to be cleaned.

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