JP5109945B2 - Car wash machine - Google Patents

Description

  The present invention relates to a car wash machine that performs a car wash by moving a vehicle to be washed and a car wash body relative to each other, and more particularly to a car wash machine used in a cold region.

An example of a car wash machine used in a conventional cold district is disclosed in Patent Document 1.
The car wash machine described in Patent Document 1 includes a car wash device, a closing device that closes the opening, a hot air supply device that heats the inside, and a portion inside the car wash machine body that has an opening serving as an entrance of the vehicle to be cleaned. A tape heater for heating is provided.

With the above configuration, when the customer who is washing the car wash machine does not have a certain time or more, the opening is opened by the closing device when the outside air temperature is below a predetermined cold temperature, for example, 2.5 ° C. or below. Closed, the hot air supply device and the tape heater are driven to heat the inside and the site, and the car wash device is prevented from freezing in cold regions. When the outside air temperature exceeds a predetermined cold temperature, the hot air supply device and the tape heater are stopped.
JP 2002-331920 A

However, when the outside air temperature is equal to or lower than a predetermined cold temperature, the entire heating device (hot air supply device and tape heater) is driven, so that there is a problem that the electricity cost increases.
In addition, the outside air temperature sensor for detecting the outside air temperature is influenced by the washing operation of the car washing device (for example, the influence of water splashed from the spray device), the influence of heating by the heating device, and the wind, rain, Under the influence of snow, there was a risk that accurate outdoor temperature could not be measured.

  Therefore, an object of the present invention is to provide a car wash machine for cold districts that can prevent freezing of the car wash device based on the accurately measured outside air temperature and can reduce the electricity bill.

In order to achieve the above-described object, the invention according to claim 1 of the present invention is used for a car wash machine body, a brush device for brushing a vehicle to be washed, a drying device for drying the vehicle, and a car wash. A car wash machine comprising a car wash device comprising a spray device for spraying detergent, etc., and relatively moving the vehicle and the car wash machine main body while washing the vehicle with the car wash device,
A heating element is provided at least in each part of the brush device and the spray device that freezes when the outside air temperature decreases, and the part to be frozen is a first part group that starts freezing as soon as the outside air temperature becomes negative, and Otherwise, it is classified into one or a plurality of second part groups where freezing starts each time the outside air temperature further decreases, and a power source is separately connected to the heating element of each part group, and the outside air temperature is measured on the car wash machine main body. The outside temperature detection operates at a first set temperature at which the first part group starts to freeze and operates at one or a plurality of second set temperatures at which the second part group starts to freeze further lower than the first set temperature. The outside air temperature detector is connected to one of the two temperature measuring bodies and one of the temperature measuring bodies arranged in a box opened to the outside at the front position of the car wash body. Measure and pre-set A first temperature measuring device that operates when the temperature is equal to or lower than the first set temperature, and a second temperature measuring device that is connected to the other temperature measuring body to measure the temperature and operates when the temperature is equal to or lower than the preset second temperature setting In accordance with the operation of the first temperature measuring device of the outside air temperature detector , power is turned on to the heating element of the first part group, and according to the operation of the second temperature measuring device of the outside air temperature detector In addition to the heating elements of the first part group, power is supplied to the heating elements of the second part group.

  According to the above configuration, when the outside air temperature decreases and reaches the first set temperature at which the first part group starts to freeze, the heating element of the first part group is turned on. The heating element generates heat and the first region group is prevented from freezing. When the temperature reaches one or more second set temperatures, which are further lower than the first set temperature, and the second site group begins to freeze, in addition to the heat generators of the first site group, The power is turned on, and the heating elements of each second part group generate heat together with the heating elements of the first part group, and the freezing of each second part group is prevented.

As described above, since the heating elements of the first part group and the heating elements of the second part group are separately heated, the electricity cost can be reduced as compared with the case where heat is generated from the beginning.
In addition, the two temperature measuring elements of the outside air temperature detector are arranged in a box opened to the outside at the front position of the car wash machine body, so that they are not affected by the heat generated by the heating element. The outside air temperature is accurately measured without splashing water and without being affected by external wind, rain, or snow.

The invention described in claim 2 of the present invention is an invention described in claim 1, a vertically movable shutter device for shielding the car wash body externally provided to the vehicle by the vehicle washing apparatus On the condition that the car wash operation is in a standby state, the shutter device is lowered according to the operation at the first set temperature of the outside air temperature detector, and the inside of the car wash machine body is shielded from the outside. To do.

  According to the above configuration, when the outside air temperature is lowered to the first set temperature, the shutter device is lowered and the inside of the car washer is shielded from the outside on the condition that the car washing operation to the vehicle by the car washing device is in a standby state. When the car wash operation is not executed, the temperature drop in the car wash machine body due to the blowing of outside air is prevented. At this time, the heat generator of the first part group generates heat, thereby warming the car wash machine body.

In the car wash machine of the present invention, when the outside air temperature reaches the first set temperature, the first part group of heating elements that are likely to freeze first generates heat, so that the first part group can be prevented from freezing. When the second set temperature is reached, the heating element of each second part group generates heat together with the heating element of the first part group, so that the freezing of each second part group can be prevented. Since the heating elements of the second part group are heated separately, compared with the case where both of them are heated from the beginning, the electricity bill can be reduced, energy saving can be realized , and two outside temperature detectors can be measured. By placing the warm body in a box that is open to the outside at the front of the car wash machine, the heat generated by the heating element, the effect of splashing water from the spray device, and external wind Prevent from being affected by rain and snow Can have exactly it is possible to measure the outside air temperature has the effect of.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
1 and 2, reference numeral 1 denotes a car wash machine body supported and guided by a pair of rails 2 laid on the floor and freely reciprocating. The car wash machine body 1 has a gate shape in a front view. Inside, as a car wash device of the vehicle 3 which is a vehicle to be washed, the brush device 4 for brushing the vehicle 3, a drying device 5 for injecting air to dry the vehicle 3, and a car wash. A spray device 6 for spraying washing water, detergent, or wax liquid onto the vehicle 3 is provided.

  Here, the moving direction of the car wash machine body 1 is the front-rear direction X, and the horizontal direction perpendicular to the front-rear direction X is the left-right direction Y. The front side) is the front, and the exit side of the vehicle 3 of the car wash machine body 1 (the back direction when viewed from the driver of the vehicle 3) is the rear.

  As an example of the brush device 4, a top brush 7 that can move up and down that brushes the upper surface of the vehicle 3, and a pair of side brushes 8 that can brush back and forth in the left and right direction Y that brush the front and rear surfaces and side surfaces of the vehicle 3, A pair of rocker brushes 9 that brush the lower side surface of the vehicle 3 and that can freely move in the left-right direction Y are provided.

  As an example of the spray device 6, a first washing water nozzle 10, a first detergent nozzle 11, a second washing water nozzle 12, a water repellent coating agent nozzle 13, a second detergent nozzle 14, and a wax nozzle 15 are used. Are arranged in this order from the front part to the rear part of the car wash machine main body 1.

  Further, as an example of the drying device 5, air is injected from the left and right sides of the vehicle 3, a pair of side nozzles 17 that can be moved back and forth in the left and right direction Y, and air is injected from above the vehicle 3, and the vertical direction. The top nozzle 18 which can be moved up and down, and the side nozzle 17 and the top nozzle 18 are connected to each of the nozzles 17 and 18 through duct ducts (not shown) having flexibility and stretchability, respectively. A pair of left and right blower devices 20 are provided.

  The car wash machine main body 1 is supported and guided by the pair of rails 2 by wheels 21, and a travel drive device (drive motor or the like) 22 for running the car wash machine main body 1 is provided on the wheels 21 of the car wash machine main body 1. The reciprocating movement of the connected car wash machine body 1 is performed by driving the travel drive device 22.

  Further, a car shape detection sensor 24 for reading the car shape (silhouette) from the side of the vehicle 3 as the car wash machine body 1 travels is located inside the car wash machine body 1. Is provided. This vehicle shape detection sensor 24 is configured by arranging a plurality of photoelectric switches each having a light transmission / reception unit arranged horizontally facing the left and right side positions of the vehicle 3 in the vertical direction, and the vehicle 3 blocks the optical axis. By detecting the photoelectric switch, the vehicle height of the vehicle 3 at the position of the vehicle shape detection sensor 24 is detected.

  Further, in the car wash machine main body 1, a travel limit switch 25 </ b> A for detecting the car wash start position for detecting that the car wash machine main body 1 is at the car wash start position (home position) of the rail 2, and the car wash machine main body 1 is connected to the rail 2. A travel limit switch 25B for detecting the travel end position is provided for detecting the travel end position (end position).

  Further, an operation panel 26 is provided on the front surface of the right vertical frame portion in the car wash machine body 1, and a control device 27 of the car wash machine body 1 is provided on the back surface side of the operation panel 26. An air panel 28 is provided on the front surface of the left vertical frame portion. The operation panel 26 is provided with a plurality of operation buttons (not shown) such as a car wash course selection button, a vehicle 3 equipment selection button, a car wash machine 1 heating selection button, and the like. It is operated by workers such as gas stations.

  Further, on the inner side surface of the right vertical frame portion (one side portion) of the car wash machine main body 1, a water panel (water distribution means) is located between the rear of the side nozzle 17 and the front of the rocker brush 9. A stock solution tank 32 in which a plurality of detergents and wax solutions are stored is provided below the water panel 31. The water panel 31 supplies cleaning water, a detergent, or a wax liquid to the nozzles 10 to 15 by controlling a valve group or the like.

  As shown in FIG. 1, a water tank 34 and a submersible pump 35 are installed as a water supply device for supplying water to the water panel 31 at a rear position of the car wash machine body 1, and a secondary outlet of the submersible pump 35 is provided. A water supply hose 36 connected to the side pipe 38B is connected to the rear end of the car wash machine body 1, and this water supply hose 36 is supported by a boom 37 so that when it is slackened, it is not grounded. Further, a primary side pipe 38A (water pipe or the like) for replenishing water in the water tank 34 is connected to the water tank 34 so that a constant amount of water is always stored in the water tank 34. Water is supplied from the water supply hose 36 to the water panel 31 through an internal pipe (not shown) of the car wash machine body 1.

  As shown in FIGS. 1 and 2, the front and rear end portions of the car wash machine body 1 are respectively provided with shutter devices (shielding devices) 41 </ b> A and 41 </ b> B that are movable up and down to shield the inside of the car wash machine body 1 from the outside (outside). Is provided. These shutter devices 41A and 41B are conventionally used electric shutter devices, each of which is a pair of left and right guides whose longitudinal direction is provided along the vertical direction at the entrance and exit of the vehicle 3 of the car wash machine body 1 respectively. A rail 42, a retractable shutter 43 that closes the entrance or exit along the guide rail 42, and a winding and feeding device 44 that includes a motor that winds the shutter 43 to raise and lower the shutter 43, etc. Yes. By lowering the shutter 43 at the entrance and exit of the vehicle 3 of the car wash machine body 1, the interior of the car wash machine body 1 is shielded from the outside (outside).

  As shown in FIG. 3, the control device 27 receives from the operation panel 26 data necessary for car washing, for example, a setting signal for a selected car washing course (pattern), operation signals such as start and stop, The detection signal of the sensor system 29 (the detection signal of the vehicle shape detection sensor 24, the detection signal of the travel limit switches 25A and 25B, the detection signal of the first temperature measuring device 73 described later, etc.) is input. In response to a signal from the operation panel 26 and a detection signal from the sensor system 29, the drive system 10 {the brush device 4 (brushes 7, 8, and 9, an electromagnetic air switching valve 68 described later), the drying device 5 (nozzle 17). , 18, blower device 20, electromagnetic air switching valve 68 described later, spray device 6 (each nozzle 10 to 15), travel drive device 22, shutter devices 41 </ b> A and 41 </ b> B (winding and feeding) 44) such as to control the} controls the car wash machine body 1 as a whole operation, running car wash operation.

  In addition, an infrared lamp 46 (FIG. 5) is provided inside the car wash machine main body 1 so as to approach the lifting rail (not shown) of the top brush 7, and a brush that rotates the brush main body of the side brush 8. An aluminum heater 47 is provided close to a cable carrier (not shown) for a cable for supplying power to the motor, and close to a rail (not shown) for guiding the side brush 8 in the left-right direction Y. A sheathed heater 48 (FIG. 5) is provided.

  Further, a tape heater 49 (FIG. 5) is attached inside the water panel 31 inside the car wash machine body 1, an infrared lamp 50 (FIG. 5) is provided close to the stock solution tank 32, and each of the nozzles 10-15. A cord heater 51 (FIG. 5) is wound around the arch, and a light bulb (lamp) 52 (FIG. 5) is provided in the air panel 28.

  Further, an aluminum heater 53 (FIG. 5) is provided close to the vehicle shape detection sensor 24, and an infrared lamp 54 (FIG. 5) is provided close to the travel limit switches 25A and 25B. It has been.

  Further, a tape heater 55 (FIG. 5) is attached to the boom 37, and tape heaters 56 and 57 (FIG. 5) are attached to the primary side pipe 38A of the water tank 34 and the secondary side pipe 38B to the water supply hose 36. .

  The lamp and the heater constitute a heating element provided at each part of the brush device 4 and the spray apparatus 6 that freezes when the outside air temperature decreases, and a heating element provided at each part of the boom 37 and the water tank 34 that freezes when the outside air temperature decreases. The first portion group 61 starts freezing as soon as the outside air temperature decreases to a minus temperature (for example, −2 ° C.), and the outside air temperature further decreases (for example, −8 °). It is classified into the 2nd site | part group 62 from which freezing begins.

  As shown in FIGS. 5 and 6, the first part group 61 includes an aluminum heater 47 of the side brush 8, a tape heater 49 of the water panel 31, a light bulb 52 of the air panel 28, and a tape heater 55 of the boom 37. Has been. The second part group 62 includes an infrared lamp 46 of the top brush 7, a sheathed heater 48 of the side brush 8, an infrared lamp 50 of the stock solution tank 32, and arches of the nozzles 10 to 15 other than the first part group 61. Cord heater 51, infrared lamps 54 of travel limit switches 25A and 25B, aluminum heater 53 of vehicle shape detection sensor 24, and tape heaters 56 and 57 of water tank 34.

  In addition, as shown in FIG. 4, the air panel 28 includes an air supply pipe 65 that guides air supplied from an external air source, an air pressure adjustment unit 66 connected to the air supply pipe 65, and the air pressure adjustment unit 66. A main air pipe 67 connected to the outlet and an electromagnetic air switching valve 68 interposed in each of a plurality of branch pipes branched from the main air pipe 67 are provided, and the electromagnetic air switching valve 68 is driven. Then, air is supplied to an air cylinder (not shown) responsible for the exit / retreat function of each side nozzle 17 to cause each side nozzle 17 to exit / retreat, and the air cylinder responsible for the exit / retreat function of the rocker brush 9 (see FIG. Air is supplied to (not shown) and each rocker brush 9 is withdrawn.

  In addition, a space 71 below the air panel 28 on the front surface of the car wash machine body 1 is a box provided with an opening 71a that is open to the outside at the bottom, as shown in FIG. Two temperature measuring bodies (temperature sensors) 72 for measuring the temperature are attached, and a first temperature measuring device 73 and a second temperature measuring device 74 are provided in the air panel 28.

  The first temperature measuring device 73 is connected to one of the temperature measuring bodies 72, and the first temperature measuring device 73 operates when the temperature falls below a first preset temperature (for example, minus 2 ° C.), that is, It has a function of outputting a detection signal and closing the auxiliary contact (on state). The second temperature measuring device 74 is connected to the other temperature measuring body 72, and the second temperature measuring device 74 has a second preset temperature lower than the first preset temperature (for example, minus 8 ° C.). It has a function that operates when the following conditions are met, that is, a function that outputs a detection signal and closes the auxiliary contact (on state). Each of these temperature measuring devices 73 and 74 is connected to an AC power source and supplied with power as shown in FIG.

The temperature measuring body 72 and the temperature measuring devices 73 and 74 constitute an outside air temperature detector.
As shown in FIG. 5, the first conductor 76 that is excited when the auxiliary contact of the first temperature measuring device 73 is in a closed state (ON state) is connected to the AC power source, and the auxiliary contact of the second temperature measuring device 74. The second conductor 77 to be excited is connected to the AC power source when the terminal is closed (on state), and the contact between the breaker 78 and the first conductor 76 (the a contact that is closed when the first conductor is excited) 76a. The heating element of the first part group 61 is connected to the AC power source via the AC power source, and the AC power source is connected via the contact point 77a of the breaker 78 and the second conductor 77 (a contact point that is closed when the second conductor is excited) 77a. The heating element of the second part group 62 is connected to the second part group 62.

  With the above circuit configuration, when the outside air temperature falls to minus 2 ° C., the auxiliary contact of the first temperature measuring device 73 is closed, so that the first conductor 76 is excited and the contact 76a is closed, and the first part Power is supplied to the heating elements of the group 61, and the heating elements of the first part group 61 generate heat. Subsequently, when the outside air temperature falls to minus 8 ° C., the auxiliary contact of the second temperature measuring device 74 is closed after the first temperature measuring device 73, and the second conductor 77 is excited following the first conductor 76. Then, the contact 77a is closed, and power is supplied to the heating element of the second part group 62 following the heating element of the first part group 61, and the heating element of the second part group 62 generates heat.

The operation and action of the car wash machine body 1 for preventing freezing according to the above configuration will be described.
On the condition that the control device 27 does not receive an operation signal from the operation panel 26 for a predetermined period of time and the car wash machine main body 1 is at rest, that is, the car wash operation to the vehicle 3 by the car wash device is in a standby state. When the outside air temperature becomes minus 2 ° C. or less and a detection signal is input from the first temperature measuring device 73, a closing control signal for closing the shutter 43 is output to the shutter devices 41A and 41B (winding and feeding device 44).

  Then, the take-up and feeding device 44 of the shutter devices 41A and 41B is driven, and the inside of the car washer 1 is shielded from the outside by the shutter 43, and the influence of outside air blowing and outside air temperature is prevented. Further, according to the circuit configuration shown in FIG. 5, the AC power is turned on to the heating elements of the first part group 61, and when the outside air temperature becomes minus 2 ° C. or lower, the heating elements of the first part group 61 that start freezing generate heat. The cable carrier of the brush 8, the inside of the water panel 31, the inside of the air panel 28, and the boom 37 are warmed to prevent freezing. At the same time, the interior of the car wash machine body 1 shielded from the outside by the shutter 43 is warmed.

  When the outside air temperature becomes −8 ° C. or lower, AC power is supplied to the heating elements of the second part group 62 in addition to the heating elements of the first part group 61 according to the circuit configuration shown in FIG. When the temperature falls below ° C, the heating element of the second part group 62 that starts freezing generates heat, the rail for raising and lowering the top brush 7, the rail for exiting and retracting the side brush 8, the stock solution tank 32, and the arch of each nozzle 10-15. The travel limit switches 25A and 25B, the vehicle shape detection sensor 24, and the pipes 38A and 38B of the water tank 34 are warmed to prevent freezing. At the same time, the interior of the car wash machine body 1 is warmed.

  When the outside air temperature becomes higher than minus 8 ° C., the AC power supply to the heating elements of the second part group 62 is cut off, the warming of the second part group 62 is stopped, and the outside air temperature becomes minus 2 °. When it becomes higher than C, the supply of AC power to the heating elements of the first part group 61 is interrupted, and the first part group 61 is stopped from being warmed.

  Further, when an operation signal is input from the operation panel 26, the control device 27 moves the shutter 43 to the shutter devices 41A and 41B (winding and feeding device 44) even if the detection signal is input from the first temperature measuring device 73. An open control signal is output, and control of the entire car wash machine is started based on the operation signal.

  As described above, according to the present embodiment, when the outside air temperature is lowered and the first set temperature is lowered to the first set temperature at which the first site group 61 starts to be frozen, the heating element of the first site group 61 is turned on. Thus, the freezing of the first part group 61 can be prevented, and when the second part group 62 is further cooled to the second set temperature at which the freezing starts, the heating part of the second part group 62 in addition to the heating element of the first part group 61 The power is turned on to prevent the second part group 62 from freezing. In addition, the heat generating element of the first part group 61 and the heat generating element of the second part group 62 are separately heated, so that compared with the case where both of them are heated from the beginning, the electricity bill is less and energy saving is realized. it can.

  Moreover, according to this Embodiment, the temperature measuring body 72 is arrange | positioned in the space 71 (box which has the opening 71a to outside air) below the air panel 28 of the car wash machine main body 1 front surface. Further, it is possible to prevent the influence of the heat generated by the heating element, the influence of splashing water from the spray device 6, and the influence of wind, rain and snow, and accurately measure the outside air temperature.

  Further, according to the present embodiment, when the outside air temperature is lowered to the first set temperature on condition that the car washing operation to the vehicle 3 by the car washing device is in a standby state, the shutter 43 is lowered and the inside of the car wash machine main body 1 Is shielded from the outside, so that when the car wash operation is not being performed, it is possible to prevent the temperature inside the car wash machine body 1 from being lowered due to the blowing of outside air and the temperature (cooling) of the outside air. The car wash machine body 1 can be warmed by the heat generated by the heating element.

  In the present embodiment, the first part group 61 and the second part group 62 are provided by separating the part that freezes when the outside air temperature becomes negative into two ranks where freezing starts. The group 62 is divided into ranks that freeze every time the outside air temperature falls below the first set temperature, and the outside air temperature detector is added to each rank, and the auxiliary contacts of the temperature measuring devices of these outside air temperature detectors are closed (ON Conductors that are excited in the state) may be added, and AC power may be turned on via these conductors by rank.

  In the present embodiment, the shutter devices 41A and 41B are driven by the detection signal of the first temperature measuring device 73 to close the shutter 43. However, an opening / closing button for the shutter 43 is provided on the operation panel 26 so that the operator can The shutter 43 may be opened and closed by operating an open / close button.

  Further, in the present embodiment, the car wash machine main body 1 includes the brush device 4, the drying device 5, and the spray device 6, but the car wash machine main body 1 includes the brush device 4 and the spray device 6 in front. And a rear car washer main body provided with a drying device 5, and shutter devices 41A and 41B are provided at the front end of the front car washer main body and the rear end of the rear car washer main body, respectively. In this case, the rear end of the front car washer and the front end of the rear car washer are brought into close contact with each other to drive the shutter devices 41A and 41B.

  In the present embodiment, a pair of rails 2 is provided on the floor surface, and the car wash machine body 1 is run along the rails 2 by the travel drive device 22 to wash the vehicle 3. It is good also as a structure which provides the conveyance means which conveys the vehicle 3 to the car wash machine main body 1 by fixing to a floor surface.

  In the present embodiment, the shutter 43 of the shutter devices 41A and 41B is moved up and down by the take-up and feeding device 44 to shield the inside of the car wash machine body 1 from the outside as the shielding device. For example, as a shielding device, a slide rail is provided along the left and right direction Y at the upper part of the entrance and exit of the vehicle 3 at the front and rear ends of the car wash machine main body 1, and a door member made of an air curtain or a heat insulating material is slid. It is good also as a structure which slides to the left-right direction Y along a rail, or the structure which fixes the shield which shields one side of the car wash machine main body 1 to a floor surface in the position which the car wash machine main body 1 is in a standby state.

It is a side view of the car wash machine in an embodiment of the invention. It is a front view of the car wash machine. It is a control block diagram in the car wash machine. It is a perspective view of the air panel part in the car wash. It is a circuit diagram of the heat generating body in the car wash. It is a figure which shows the list of the heat generating body in the car wash machine.

Explanation of symbols

X Front-rear direction Y Left-right direction 1 Car wash machine body 2 Rail 3 Vehicle (vehicle to be cleaned)
4 Brush device 5 Drying device 6 Spray device 26 Operation panel 27 Control device 28 Air panel 46 Infrared lamp (top brush)
47 Aluminum heater (side brush)
48 Seed heater (side brush)
49 Tape heater (water panel)
50 Infrared lamp (stock solution tank)
51 Code heater (arch)
52 Light Bulb (Air Panel)
53 Aluminum heater (vehicle shape detection sensor)
54 Infrared lamp (travel limit switch)
55 Tape heater (boom)
56 Tape heater (water tank)
57 Tape heater (water tank)
61 1st part group 62 2nd part group 71 Space 72 Temperature sensor (temperature sensor)
73 First Temperature Measuring Device 74 Second Temperature Measuring Device 76 First Conductor 77 Second Conductor

Claims (2)

The car wash machine includes a car wash device comprising a brush device for brushing a vehicle to be washed, a drying device for drying the vehicle, and a spray device for spraying a detergent used for car wash, the vehicle and the vehicle A car wash for washing the vehicle with the car wash device while relatively moving the car wash main body,
A freezing body is provided at least in each part of the brush device and the spray device that freezes when the outside air temperature decreases,
The part to be frozen is classified into a first part group that starts freezing as soon as the outside air temperature becomes a negative temperature, and one or more second part groups that start freezing every time the outside air temperature further decreases. , Connect the power supply to the heating element of each part group separately,
One or more of the car wash machine main body measures the outside air temperature, operates at a first set temperature at which the first part group starts to freeze, and starts freezing at the second part group that is lower than the first set temperature. An outside air temperature detector that operates at the second set temperature is provided,
The outside temperature detector is connected to one of the two temperature measuring bodies disposed in a box opened to the outside at the front position of the car wash machine main body, and measures the temperature. A first temperature measuring device that operates when the temperature falls below the first preset temperature set in advance, and a first temperature measuring device that is connected to the other temperature measuring body, measures the temperature, and operates when the temperature falls below the preset second set temperature. It consists of two temperature measuring instruments,
In accordance with the operation of the first temperature measuring device of the outside air temperature detector, the heating element of the first part group is turned on, and according to the operation of the second temperature measuring device of the outside air temperature detector, the first temperature measuring device A car wash machine, wherein power is supplied to the heating elements of each second part group in addition to the heating parts of one part group. A vertically movable shutter device that shields the inside of the car wash machine body from the outside is provided.
On the condition that the car washing operation to the vehicle by the car washing device is in a standby state, the shutter device is lowered according to the operation by the first set temperature of the outside air temperature detector, and the inside of the car washing machine main body is externally The car wash machine according to claim 1, wherein the car wash machine is shielded from the car wash.

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