JP7264010B2 - car wash machine - Google Patents

Description

The present invention relates to a car wash machine equipped with a shape sensor for detecting the shape of a vehicle to be washed.

A car wash machine equipped with a shape sensor for detecting the shape of a vehicle to be washed is disclosed in Patent Document 1. This car wash machine is provided with a car wash machine main body having stand portions facing left and right and moving in the front-rear direction with respect to the vehicle to be washed. The car wash machine body is provided with an injection nozzle, a rotating brush and a shape sensor.

In the shape sensor, a plurality of paired light-projecting and light-receiving elements are arranged vertically on a stand. The light flux emitted from the element on the light projecting side is received by the element on the light receiving side when there is no vehicle to be cleaned on the optical path, and is blocked when the vehicle to be cleaned is present. Thereby, the shape of the vehicle to be washed is detected.

The washing liquid is sprayed from the injection nozzle, and the rotary brush is moved vertically or horizontally along the contour of the vehicle detected by the shape sensor to wash the vehicle.

Japanese Patent No. 3902034 (pages 3 to 8, Fig. 2)

However, according to the conventional car wash machine, water droplets of the cleaning liquid sprayed from the spray nozzle adhere to the element on the light-projecting side or the element on the light-receiving side, causing erroneous detection by the shape sensor. For this reason, there is a problem that the frequency of cleaning the element is high and the maintainability of the car wash machine is poor.

SUMMARY OF THE INVENTION An object of the present invention is to provide a car wash machine capable of reducing erroneous detection by a shape sensor and improving maintainability.

In order to achieve the above object, the present invention provides a car wash machine main body having stand portions facing each other in the left-right direction and moving in the front-rear direction with respect to a vehicle to be washed; a rotating brush disposed in the car wash machine main body; A plurality of injection nozzles arranged on the car wash machine main body for injecting the washing liquid, and a plurality of paired light emitting side and light receiving side elements are arranged in the vertical direction on the stand portion to detect the shape of the vehicle to be washed. A shape sensor and waterproof covers provided on both of the stand portions are provided, and each of the waterproof covers is formed by arranging a plurality of shielding plates in parallel in the left-right direction and having a plurality of through-holes facing the element. It is characterized by

Further, according to the present invention, in the car wash machine having the above configuration, the shielding plate provided on the stand portion on which the light receiving side element is arranged is inclined with respect to the front-rear direction.

Further, according to the present invention, in the car wash machine configured as described above, the element on the light emitting side projects light toward a plurality of the elements on the light receiving side including the elements facing each other horizontally, and the elements on the light receiving side are arranged horizontally. The shielding plate receives light from a plurality of elements on the light emitting side including the opposing elements, and is arranged closer to the element than the through hole of the shielding plate arranged on the side of the vehicle to be washed. It is characterized in that the vertical width of the through hole is small.

Further, the present invention is characterized in that, in the car wash machine having the above structure, there is provided a space between the shielding plate arranged on the element side and the element.

Further, in the car wash machine having the above configuration, the wall surface of the stand portion facing the vehicle to be washed is provided with a slit extending in the vertical direction, and the through hole of the shielding plate disposed on the side of the vehicle to be washed is provided with a slit extending in the vertical direction. and the width in the front-rear direction is equal to or greater than the width in the front-rear direction of the slit.

Further, the present invention is characterized in that, in the car wash machine having the above structure, the waterproof cover is formed by bending a metal plate, and a heater is provided for heating the waterproof cover.

Further, in the car wash machine having the above configuration, at least one of the waterproof covers has only two shielding plates, and the distance between the shielding plate on the element side and the shielding plate on the vehicle to be washed side and the distance between the shielding plate on the side of the vehicle to be washed and the The distance between the element-side shielding plate and the element is characterized by being larger than the vertical period of the element.

According to the present invention, since a waterproof cover is provided in which a plurality of shielding plates having through holes facing the element of the shape sensor are arranged side by side, it is possible to reduce water droplets adhering to the element and reduce erroneous detection of the shape sensor. can. Therefore, the maintainability of the car wash machine can be improved.

The front view which shows the car wash machine of embodiment of this invention. The side view which shows the car wash machine of embodiment of this invention Schematic front view showing a shape sensor of a car wash machine according to an embodiment of the present invention 1 is a perspective view showing the vicinity of a shape sensor of a car wash machine according to an embodiment of the present invention; FIG. FIG. 2 is a top cross-sectional view showing the vicinity of the shape sensor of the car wash machine according to the embodiment of the present invention; FIG. 5 is a schematic front view showing how light travels through a waterproof cover of a modification of the car wash machine according to the embodiment of the present invention; FIG. 5 is a schematic front view showing how light travels through a waterproof cover of a modification of the car wash machine according to the embodiment of the present invention; FIG. 2 is a schematic top view showing how light travels through the waterproof cover of the car wash machine according to the embodiment of the present invention; FIG. 2 is a schematic front view showing the waterproof state of the waterproof cover of the car wash machine according to the embodiment of the present invention;

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a front view and a side view showing a car wash machine 1 of one embodiment. The car wash machine 1 includes a car wash machine main body 2 and a remote panel 65. - 特許庁The car wash machine main body 2 is formed in a gate shape having two stand portions 3 facing each other in the left-right direction (X direction) and a ceiling portion 4 connecting the upper ends of the stand portions 3 .

A pair of left and right rails 66 are laid on the ground G, and wheels 2c provided on the bottom surface of the stand portion 3 are arranged on the rails 66. As shown in FIG. As a result, the car wash machine main body 2 is erected on the rails 66 and travels on the rails 66 by being driven by a travel motor (not shown) to move in the front-rear direction (Y direction) with respect to the vehicle 70 to be washed.

The remote panel 65 is arranged along the approach path of the vehicle 70 to be washed to the car wash machine main body 2 . A remote panel 65 has a plurality of buttons for setting car wash conditions. As car washing conditions, set the washing method (washing with water, washing with shampoo, presence or absence of wax coating, etc.), presence or absence of equipment (front guard, fender pole, side under mirror, rear wiper, roof spoiler, roof carrier, etc.). can be done.

An operation panel 8 is arranged in front of one stand portion 3 of the car wash machine main body 2 . The operation panel 8 can set the car wash conditions similarly to the remote panel 65 .

A shape sensor 30, the details of which will be described later, is provided at the end of the stand portion 3 of the car wash machine main body 2 on the inlet surface 2a side. The shape sensor 30 detects the shape of the vehicle 70 to be washed.

The car wash machine main body 2 is provided with a plurality of rotating brushes that rotate and slide on the vehicle 70 to be washed to brush. A top brush 5 and a side brush 6 are provided as rotating brushes. The top brush 5 is provided on the ceiling portion 4 and rotates on a horizontal axis of rotation. A pair of left and right side brushes 6 are provided and rotated by a rotating shaft extending vertically to wash both side surfaces of the vehicle 70 to be washed. Further, the side brushes 6 move left and right along the front and rear surfaces of the vehicle 70 to be washed detected by the shape sensor 30 to wash the front and rear surfaces of the vehicle 70 to be washed.

A blower 20 for generating an airflow is arranged on the upper part of the car wash machine main body 2 . The blower 20 is connected with a plurality of air blowing nozzles for blowing air toward the vehicle 70 to be washed. A top blower nozzle 21 and a side blower nozzle 22 are provided as blower nozzles.

The top air blowing nozzle 21 is provided on the ceiling part 4 so as to be able to move up and down, moves along the upper surface and the rear surface of the vehicle 70 to be washed, and blows air to dry the front surface, the upper surface and the rear surface of the vehicle 70 to be washed. The side air blowing nozzles 22 are provided on both stand portions 3, respectively, and blow air to dry the side surfaces of the vehicle 70 to be washed.

A distribution pipe portion 19 is provided in one stand portion 3 . The distribution pipe portion 19 is connected to a water storage tank (not shown) disposed outside the outlet surface 2b of the car wash main body 2 and accommodates a plurality of water storage tanks (not shown). City water stored in the water storage tanks and detergents and liquid agents (wax, coating agents, etc.) from the respective water storage tanks are distributed by the distribution pipe section 19 .

A plurality of injection nozzles 11 connected to a distribution pipe portion 19 are provided on the ceiling portion 4 and the stand portion 3 . Cleaning is performed by a rotating brush by injecting the cleaning liquid from the injection nozzle 11 .

FIG. 3 shows a schematic front view of the shape sensor 30. As shown in FIG. The shape sensor 30 includes a light projecting section 31 provided on one stand section 3 and a light receiving section 32 provided on the other stand section 3 . Both stand portions 3 are provided with waterproof covers 40 arranged to face the light projecting portion 31 and the light receiving portion 32, respectively.

A pair of elements 33 and 34 are provided in the light projecting section 31 and the light receiving section 32, respectively, so as to face each other in the horizontal direction. A plurality of elements 33 and elements 34 are provided and arranged side by side at a predetermined period Tz (20 mm in this embodiment) in the vertical direction (Z direction).

The light beam B emitted from the element 33 on the light projecting side is received by the element 34 on the light receiving side when the vehicle 70 to be cleaned is not present on the optical path, and is blocked when the vehicle 70 to be cleaned is present. Thereby, the shape of the vehicle 70 to be washed is detected.

Further, the light-projecting element 33 projects light toward a plurality of light-receiving elements 34 including the elements 34 facing horizontally. In this embodiment, light is projected from the top and bottom elements 33 on the light emitting side toward two elements 34 on the light receiving side, and light is projected from the other elements 33 toward three elements 34 on the light receiving side. there is Therefore, the element 34 on the light receiving side receives light from a plurality of (two or three in this embodiment) elements 33 on the light projecting side, including the elements 33 facing horizontally. Thereby, the shape of the vehicle 70 to be washed can be detected with high accuracy.

4 and 5 show a perspective view and a cross-sectional top view of the vicinity of the light receiving portion 32 of the shape sensor 30. FIG. The vicinity of the light projecting section 31 is configured similarly to the vicinity of the light receiving section 32 . A vertically extending slit 3b is provided in the wall surface 3a of the stand portion 3 facing the vehicle to be washed 70 (see FIG. 1). The slit 3b is arranged on the optical path of the light flux B so as to face the elements 33 and .

A width W of the slit 3 b in the front-rear direction is larger than the beam diameter of the light flux B emitted from the element 33 of the light projecting section 31 . In this embodiment, the beam diameter of the emitted light beam is 5 mm, and the width W of the slit 3b is 15 mm. This allows the light emitted from the element 33 to pass through the slit 3b without being blocked by the wall surface 3a.

A shutter 51 and a waterproof cover 40 are provided in the stand section 3 between the wall surface 3 a and the light receiving section 32 . The shutter 51 is rotatable about a vertical rotation shaft, and opens and closes the slit 3b by driving an air cylinder (not shown) or the like. The shape sensor 30 detects the shape of the vehicle 70 to be washed by opening the shutter 51, and when the shape of the vehicle 70 to be washed is detected, the shutter 51 is closed. As a result, it is possible to reduce the penetration of the cleaning liquid into the stand portion 3 .

The waterproof cover 40 is formed by bending a metal plate, and has two shielding plates 41 and 45 extending in the vertical direction (Z direction) and arranged side by side in the horizontal direction (X direction). A heater 52 is attached to the waterproof cover 40 . The shielding plate 41 is arranged on the vehicle to be washed 70 side, and the shielding plate 45 is arranged on the element 34 side. The shielding plates 41 and 45 have a plurality of circular through holes 41a and 45a facing the element 34, respectively.

As a result, the light emitted from the element 33 (see FIG. 3) and passed through the slit 3b passes through the through holes 41a and 45a and is received by the element 34. FIG. Also, the cleaning liquid that scatters during car washing partially passes through the through holes 41 a and 45 a , but is blocked by the shielding plates 41 and 45 .

A space S is provided between the shielding plate 45 on the side of the element 34 and the element 34 so that an operator's hand can enter. An opening/closing door (not shown) is provided on the wall surface 3a of the stand portion 3 on the side of the vehicle 70 to be washed. As a result, it is possible to open the opening/closing door, reach into the space S, and clean the element 34 that has been soiled by the cleaning liquid that has passed through the through holes 41a and 45a. Also, the corner portion 40a formed by bending the metal plate is formed on the R surface. Therefore, it is possible to prevent fingers from being injured due to contact with the corner portion 40a.

The shielding plate 41 and the shielding plate 45 are inclined at an inclination angle θ (5° in this embodiment) with respect to the front-rear direction (Y direction). In this embodiment, the shielding plate 41 and the shielding plate 45 are inclined in opposite directions to the Y direction, but they may be inclined in the same direction.

Also, the shielding plate 41 and the shielding plate 45 may be arranged parallel to the Y direction, but it is more desirable to be inclined. 6 and 7 are front cross-sectional views showing light traveling states of a modified waterproof cover 40 in which the shielding plate 41 and the shielding plate 45 are arranged parallel to the Y direction.

The luminous flux emitted from the element 33 on the light projecting side spreads slightly as it travels. Therefore, a part B' of the light beam B traveling obliquely downward above the vehicle 70 to be washed may be reflected around the through holes 41a and 45a of the shielding plates 41 and 45 and reflected on the vehicle 70 to be washed. be. At this time, when the reflected light of the vehicle 70 to be washed is received by the element 34 (indicated by 34a in the drawing) of the light receiving unit 32, the shape sensor 30 determines that the vehicle 70 to be washed does not exist on the optical path. There is a possibility of false detection.

On the other hand, if the shielding plates 41 and 45 are tilted with respect to the Y direction, the light reflected by the shielding plates 41 and 45 travels while being tilted with respect to the X direction, as shown in the top view of FIG. . As a result, the luminous flux reflected by the shielding plates 41 and 45 and the vehicle to be washed 70 does not reach the element 34 of the light receiving section 32, so that erroneous detection of the shape sensor 30 due to reflection can be prevented.

The shielding plates 41 and 45 provided on the stand portion 3 on which the element 33 on the light projecting side is arranged may be parallel to the Y direction. That is, the shielding plates 41 and 45 provided on the stand portion 3 on which the element 34 on the light receiving side is arranged should be inclined with respect to the Y direction.

4 and 5, the diameter Da of the through hole 41a of the shielding plate 41 is formed to be substantially the same as the width W of the slit 3b. That is, the vertical width and the front-rear width of the through hole 41a are formed substantially equal to the width W of the slit 3b. The light beam B emitted from the element 33 spreads slightly as it travels, but since the diameter Da is substantially the same as the width W, most of the light that has passed through the slit 3b passes through the through hole 41a without being blocked by the shielding plate 41. do.

Also, the diameter Db of the through hole 45a is formed smaller than the diameter Da of the through hole 41a. That is, the vertical width of the through hole 45a is formed smaller than the vertical width of the through hole 41a. As described above, the light-receiving side element 34 receives the light emitted from the plurality of adjacent elements 33 on the light projecting side, so the outer light flux travels toward the element 34 in an oblique direction. Therefore, even if the through-hole 45a closer to the element 34 is made smaller than the through-hole 41a, most of the light flux B passing through the through-hole 41a passes through the through-hole 45a without being blocked by the shielding plate 45. FIG. At this time, by forming the through-hole 45a small, the cleaning liquid passing through the through-hole 45a can be reduced.

The through-holes 41a and 45a may be polygonal (rectangular, etc.), elliptical, or other shapes, but a circular shape is preferable as in the present embodiment. As a result, since the cross-sectional shape of the light flux B emitted from the element 33 is circular, it is possible to reduce the area that does not participate in the passage of light, thereby reducing the passage of the cleaning liquid.

FIG. 9 is a schematic front view showing a waterproof state by the waterproof cover 40. FIG. The cleaning liquid F passing through the slit 3b (see FIG. 4) and proceeding toward an arbitrary element 34 (indicated by 34b in the drawing) is blocked by the shielding plate 41 or 45. FIG. Although part of the cleaning liquid F passes through the through holes 41a and 45a, the cleaning liquid F reaching the element 34b can be reduced. Thereby, erroneous detection of the shape sensor 30 due to adhesion of the cleaning liquid F can be reduced.

At this time, when the shielding plate 45 on the element 34 side comes close to the element 34 or the shielding plate 41 on the vehicle to be washed 70 side, the washing liquid F easily passes through the through hole 45a as in the case where there is only one shielding plate. Therefore, it is more desirable to set the distance La between the shielding plate 45 and the shielding plate 41 and the distance Lb between the shielding plate 45 and the element 34 larger than the vertical period Tz of the element 34 . As a result, at least part of the cleaning liquid F that has passed through the through hole 41 a can be reliably blocked by the shielding plate 45 .

In addition, when the washing liquid adhering to the shielding plates 41 and 45 flows down, ice may grow in the through-holes 41a and 45a in a cold region and block the through-holes 41a and 45a. Therefore, the waterproof cover 40 can be heated by the heater 52, and blockage of the through holes 41a and 45a by ice can be prevented.

In the car wash machine 1 configured as described above, when the vehicle to be washed 70 stops in front of the remote panel 65, the car wash conditions are set. By operating the remote panel 65, a car wash course such as a water washing course or a shampoo course is selected.

In the water washing course, the rotary brush is rotated to inject the washing liquid of city water from a predetermined injection nozzle 11 to wash the vehicle 70 to be washed. In the shampoo course, the rotating brush is rotated to inject the washing liquid containing the detergent from the predetermined injection nozzles 11 to wash the vehicle 70 to be washed with the detergent. Further, by selecting the car wash conditions, the wax or coating agent can be applied to the vehicle 70 to be washed after the vehicle 70 to be washed has been washed.

After the car wash conditions are set, the car wash is started when the vehicle 70 to be washed is moved to a predetermined washing start position and stopped by the user's operation. When the car wash is started, the first outward trip is performed. In the first outward trip, the car wash machine main body 2 moves toward the rear of the vehicle 70 to be washed at a predetermined moving speed (eg, 5 m/min). Then, washing is performed by a rotary brush by injecting the washing liquid of city water from the injection nozzle 11 . At this time, the shutter 51 is opened, and the shape of the vehicle 70 to be washed is detected by the shape sensor 30 near the entrance surface 2a.

When the shape is detected up to the rear end of the vehicle 70 to be washed, the shutter 51 is closed. When washing is performed up to the rear end of the vehicle 70 to be washed detected by the shape sensor 30, the car wash machine body 2 stops and the first return trip is performed.

In the first return trip, the car wash machine main body 2 moves toward the front of the vehicle 70 to be washed at a predetermined movement speed (eg, 5 m/min). Then, a cleaning liquid containing, for example, detergent is ejected from the ejection nozzle 11, and cleaning is performed by a rotating brush.

When washing is performed up to the front end of the vehicle 70 to be washed, the second outward trip is performed. In the second outward path, the car wash machine main body 2 moves toward the rear of the vehicle 70 to be washed at a predetermined movement speed (eg, 5 m/min). Also, the rotating brush is stopped, and the airflow is sent out from the blower nozzle. As a result, the vehicle 70 to be washed is dried. When the vehicle 70 to be washed is dried up to the rear end thereof, the washing is completed, and the vehicle 70 to be washed advances and leaves.

Next, the car was washed (water washing course) by the car wash machine 1 of the present embodiment, and the state of splashing water on the shape sensor 30 was examined. The distance La between the shielding plate 41 and the shielding plate 45 is set to 50 mm, and the distance Lb between the shielding plate 45 and the elements 33 and 34 is set to 100 mm. The diameters Da and Db of the through holes 41a and 45a are 15 mm and 10 mm, respectively. In addition, as Comparative Example 1, the car was washed in the same manner without the waterproof cover 40 . As Comparative Example 2, the car was washed in the same manner except that the shielding plate 45 of the waterproof cover 40 was omitted.

As a result, in Comparative Example 1, dripping occurred on the elements 33 and 34 after eight consecutive car washes. In Comparative Example 2, water droplets adhered to the elements 33 and 34 after 30 consecutive car washes. On the other hand, in the present embodiment, almost no water droplets adhered to the elements 33 and 34 after 30 consecutive car washes. .

According to the present embodiment, the waterproof cover 40 is provided with a plurality of shielding plates 41 and 45 having through holes 41a and 45a facing the elements 33 and 34 of the shape sensor 30. False detection of the shape sensor 30 can be reduced by reducing water droplets. Therefore, the maintainability of the car wash machine 1 can be improved.

In addition, since the shielding plates 41 and 45 provided on the stand portion 3 where the element 33 on the light receiving side is arranged are inclined with respect to the front-rear direction, it is possible to prevent erroneous detection of the shape sensor 30 due to reflected light from the shielding plates 41 and 45. can be done.

Further, the light-projecting element 33 projects light toward a plurality of light-receiving elements 34 including the elements 34 facing horizontally. The light-receiving side element 34 receives light from a plurality of light-projecting side elements 33 including horizontally opposed elements 33 . The vertical width of the through hole 45a of the shield plate 45 arranged on the element 33, 34 side is smaller than the through hole 41a of the shield plate 41 arranged on the vehicle 70 to be washed side. As a result, the luminous flux B that has passed through the through-hole 41a can be passed through the through-hole 45a without being blocked, and the cleaning liquid passing through the through-hole 45a can be further reduced.

In addition, since there is a space S between the shielding plate 45 arranged on the side of the elements 33 and 34 and the elements 33 and 34 where the operator's hand can enter, the elements 33 and 34 can be prevented from being soiled by the cleaning liquid that has passed through the through holes 45a. Can be easily cleaned.

A slit 3b extending in the vertical direction is provided in the wall surface 3a of the stand portion 3 facing the vehicle 70 to be washed. The vertical and longitudinal widths of the through hole 41a of the shielding plate 41 disposed on the vehicle 70 to be washed side are substantially the same as the width W of the slit 3b in the longitudinal direction. As a result, the luminous flux B that has passed through the slit 3b reliably passes through the through hole 41a of the shielding plate 41, and the detection accuracy of the shape sensor 30 can be prevented from being lowered.

Further, since the waterproof cover 40 is formed by bending a metal plate, and the heater 52 for heating the waterproof cover 40 is provided, it is possible to prevent the through holes 41a and 45a from being clogged due to the growth of ice.

Also, the waterproof cover 40 has only two shielding plates 41 and 45 . At this time, the distance La between the shielding plate 45 and the shielding plate 41 and the distance Lb between the shielding plate 45 and the elements 33 and 34 are larger than the vertical period Tz of the elements 33 and 34 . As a result, at least part of the cleaning liquid that has passed through the through hole 41 a of the shielding plate 41 can be reliably shielded by the shielding plate 45 .

INDUSTRIAL APPLICABILITY According to the present invention, it can be widely used in car washing machines for washing vehicles to be washed.

REFERENCE SIGNS LIST 1 car wash machine 2 car wash machine main body 2a entrance surface 2b exit surface 2c wheel 3 stand portion 3a wall surface 3b slit 4 ceiling portion 5 top brush 6 side brush 8 operation panel 11 injection nozzle 20 blower 21 top blower nozzle 22 side blower nozzle 30 shape sensor 31 Light projecting part 32 Light receiving part 33, 34 Element 40 Waterproof cover 40a Corner part 41, 45 Shield plate 41a, 45a Through hole 51 Shutter 52 Heater 65 Remote panel 66 Rail 70 Vehicle to be washed B Luminous flux F Cleaning liquid G Ground S Space Da, Db Diameter La, Lb Distance Tz Period W Width θ Tilt angle

Claims (6)

A car wash machine body having stand portions facing each other in the left-right direction and moving in the front-rear direction with respect to the vehicle to be washed, a rotating brush arranged in the car wash machine body, and a washing liquid arranged in the car wash machine body and sprayed. a shape sensor for detecting the shape of the vehicle to be washed by arranging a plurality of paired light emitting side and light receiving side elements arranged in the vertical direction on the stand portion respectively; a plurality of shielding plates each having a plurality of through-holes facing the element are arranged side by side in the left-right direction , and
A car washing machine according to claim 1, characterized in that the shielding plate provided on the stand portion on which the element on the light receiving side is arranged is inclined with respect to the front-rear direction . A car wash machine body having stand portions facing each other in the left-right direction and moving in the front-rear direction with respect to the vehicle to be washed, a rotating brush arranged in the car wash machine body, and a washing liquid arranged in the car wash machine body and sprayed. a shape sensor for detecting the shape of the vehicle to be washed by arranging a plurality of paired light emitting side and light receiving side elements arranged in the vertical direction on the stand portion respectively; a plurality of shielding plates each having a plurality of through-holes facing the element are arranged side by side in the left-right direction , and
The element on the light projecting side projects light toward a plurality of elements on the light receiving side including the elements facing horizontally, and the elements on the light receiving side project light toward a plurality of elements on the light receiving side including the elements horizontally facing each other. The through hole of the shielding plate which receives the light from the element and is arranged on the side of the vehicle to be washed has a width in the vertical direction smaller than that of the through hole of the shielding plate arranged on the side of the vehicle to be washed. car wash machine. A car wash machine body having stand portions facing each other in the left-right direction and moving in the front-rear direction with respect to the vehicle to be washed, a rotating brush arranged in the car wash machine body, and a washing liquid arranged in the car wash machine body and sprayed. a shape sensor for detecting the shape of the vehicle to be washed by arranging a plurality of paired light emitting side and light receiving side elements arranged in the vertical direction on the stand portion respectively; a plurality of shielding plates each having a plurality of through-holes facing the element are arranged side by side in the left-right direction , and
A car washing machine , wherein the waterproof cover is formed by bending a metal plate, and a heater for heating the waterproof cover is provided . 4. The car wash machine according to any one of claims 1 to 3, further comprising a space between the shielding plate arranged on the side of the element and the element. A slit facing the elements arranged in the vertical direction is provided in the wall surface of the stand facing the vehicle to be washed, and the width in the vertical direction and the front-rear direction of the through hole of the shielding plate arranged on the side of the vehicle to be washed is increased . The car wash machine according to any one of claims 1 to 4, wherein the width of the slit in the front-rear direction is substantially the same. At least one of the waterproof covers has only two shielding plates, and the distance between the shielding plate on the element side and the shielding plate on the vehicle to be washed side and the distance between the shielding plate on the element side and the element is larger than the vertical period of the element.

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