JP7310762B2 - car wash machine - Google Patents

Description

The present invention relates to a car wash machine with a safety device.

A conventional car wash machine installed at a gas station or the like is disclosed in Patent Document 1. This car wash machine has a car wash machine main body that reciprocates in the front-rear direction with respect to the vehicle to be washed. The main body of the car wash machine is formed in a gate shape in which upper ends of left and right stand portions are connected by a ceiling portion. A car wash machine body is provided with a rotating brush and a blower nozzle. The car wash machine main body moves in the front-rear direction, and the rotating brush rotates and slides on the vehicle to be washed while spraying washing water, thereby washing the vehicle to be washed. After washing, the vehicle to be washed is dried by blowing an air stream from the blower nozzle.

In addition, safety devices for detecting contact in the width direction of the vehicle to be washed during movement are provided at both left and right ends of the entrance surface side of the car wash machine main body. When the safety device detects contact with the vehicle to be washed, the movement of the car wash machine body is stopped to maintain the safety of the car wash machine.

The safety device includes a detection bar, a support, a rotating body, and a detection sensor. The detection bar extends vertically along the inner side of the stand. The support rotatably supports the upper end of the detection bar. The rotating body is rotatably provided at the lower part of the car wash machine main body, and the lower end of the detection bar passes through a through hole provided at the tip thereof with a clearance. The detection sensor is activated by the rotation of the rotating body.

When the vehicle to be washed comes into contact with the detection bar suspended from the support, the detection bar rotates about its upper end as a fulcrum, and the rotating body rotates in the front-rear direction. As a result, the detection sensor is activated and the movement of the car wash main body is stopped.

Japanese Unexamined Patent Application Publication No. 2007-62545 (pages 2 to 5, Fig. 3)

If there is an obstacle such as a person or a foreign object on the path of the car wash machine main body, there is a risk of collision between the moving car wash machine main body and the obstacle. Therefore, by providing the safety device with a detection member that can swing along the lower end of the stand portion, it is possible to detect contact with an obstacle and improve the safety of the car wash machine. In this case, a separate switch for detecting the swinging motion of the detection member is required, which raises the problem of increasing the cost of the car wash machine.

SUMMARY OF THE INVENTION An object of the present invention is to provide a car wash machine capable of suppressing an increase in cost and improving safety.

In order to achieve the above object, the present invention provides a car wash machine main body which is formed in a gate shape in which upper ends of left and right facing stand portions are connected by a ceiling portion and which moves in the front-rear direction with respect to a vehicle to be washed, and the car wash. and a safety device for detecting contact with an obstacle during movement of the machine body, wherein the safety device extends vertically along the inner side of the stand portion so that an upper end of the stand portion extends toward the first position of the car wash body. A first detection bar that is tiltably supported by a support portion, and a second detection bar that extends laterally along the lower end of the stand portion and whose outer end portion is tiltably supported by a second support portion of the car wash main body. a connecting member for connecting the lower end of the first detection bar and the inner end of the second detection bar; a swinging member connected to the first detection bar above the connecting member; and a detection sensor for detecting swinging of the swinging member,
The connecting member is tilted with respect to the second detection bar, and both ends thereof are attached to the first detection bar and the second detection bar so as to be rotatable about longitudinal axes, respectively, and the rocking member connects the universal joint. It is characterized in that it is connected to the first detection bar through an intermediary.

Further, according to the present invention, in the car wash machine having the above structure, the universal joint is a ball joint.

Further, according to the present invention, in the car wash machine configured as described above, the first supporting portion supports the first detecting bar so as to be vertically movable and rotatable in the circumferential direction, and the second supporting portion supports the second detecting bar in the lateral direction. It is characterized by being supported so as to be movable and rotatable in the circumferential direction.

Further, in the car wash machine having the above configuration, the first extension member extends in the front-rear direction from the upper portion of the inner surface side of the stand portion and is attached to the main body of the car wash machine; a second elongated member that extends in a direction and is attached to the car wash machine main body; and the second support portion is formed by a second through hole penetrating the second extension member in the left and right direction, and the outer end portion of the second detection bar is loosely fitted. there is

Further, according to the present invention, in the car wash machine configured as described above, the distance between the swing shaft of the swing member and the first detection bar in the left-right direction is equal to the distance between the second support portion and the first detection bar in the left-right direction. It is characterized by being smaller than the distance.

According to the present invention, contact between the first detection bar and the vehicle to be washed and contact between the second detection bar and the obstacle are detected by the same detection sensor by swinging the swing member. As a result, it is possible to suppress an increase in the cost of the car wash machine and improve safety.

The side view which shows the car wash machine of embodiment of this invention The front view which shows the car wash machine of embodiment of this invention. 1 is a front view showing a safety device for a car wash machine according to an embodiment of the present invention; 1 is a top view showing a safety device for a car wash machine according to an embodiment of the present invention; FIG. A view of FIG. 3 B arrow view in FIG. FIG. 2 is an enlarged top view showing the first support portion of the safety device for the car wash machine according to the embodiment of the present invention; FIG. 4 is an enlarged side view showing the second support portion of the safety device for the car wash machine according to the embodiment of the present invention; FIG. 2 is a side view showing the first forward process of the car wash machine according to the embodiment of the present invention; FIG. 2 is a side view showing the first return process of the car wash machine according to the embodiment of the present invention; FIG. 4 is a side view showing the second forward process 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 side view and a front view showing a car wash machine 1 of one embodiment. The car wash machine 1 has a car wash machine body 2, a rail 60 and a remote panel 7. - 特許庁The car wash machine main body 2 is formed in a gate shape having two left and right stand portions 2d facing each other and a ceiling portion 2c connecting the upper ends of the stand portions 2d.

A pair of left and right rails 60 are provided on the ground G, and wheels 3 provided on the bottom surface of the stand portion 2 d are arranged on the rails 60 . As a result, the car wash machine main body 2 is erected on the rails 60 and travels on the rails 60 by being driven by a travel motor (not shown) to move in the longitudinal direction with respect to the vehicle 70 to be washed.

The remote panel 7 is arranged along the approach route to the car wash machine main body 2 . The remote panel 7 has a plurality of buttons for setting car wash conditions. In addition, the remote panel 7 can be used to set equipment such as front guard, fender pole, side mirror, rear wiper, roof carrier, and the like.

An operation panel 8 is arranged in front of one stand portion 2 d of the car wash machine main body 2 . The operation panel 8 can set the car wash conditions similarly to the remote panel 7 .

The car wash machine main body 2 is provided with a plurality of rotating brushes for sliding and brushing the vehicle 70 to be washed. A rotating brush consists of a top brush 4, a side brush 5 and a rocker brush 6. - 特許庁

The top brush 4 is provided on the ceiling portion 2c so as to be able to move up and down, and rotates on a rotating shaft arranged in the left-right direction to wash the upper surface of the vehicle 70 to be washed. The side brushes 5 are provided on the side of the exit surface 2b of both stand portions 2d so as to move forward and backward in the left-right direction and rotate on rotating shafts arranged in the vertical direction to wash the front, both side and rear surfaces of the vehicle 70 to be washed. The rocker brushes 6 are provided at the lower portions of both stand portions 2d so as to be able to advance and retreat in the left-right direction, and wash the lower portions of both side 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 to a plurality of air blowing nozzles for blowing air toward the vehicle 70 to be washed. The blower nozzles consist of top blower nozzles 21 and side blower nozzles 22 .

The top air blowing nozzle 21 is provided on the ceiling part 2c 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 upper surface and the rear surface. The side air blowing nozzles 22 are provided on both stand portions 2d, respectively, and blow air to dry the side surfaces of the vehicle 70 to be washed.

A vehicle shape sensor 9 is provided on both stand portions 2d of the car wash machine body 2 closer to the entrance surface 2a than the top brush 4 is. The vehicle shape sensor 9 is composed of a photoelectric sensor, an ultrasonic sensor, or the like, and detects the vehicle shape projected from the side of the vehicle 70 entering the car wash machine main body 2 .

The stand portion 2d is provided with a tank storage portion 30 for storing a plurality of liquid storage tanks (not shown) storing various liquid agents such as detergents and coating agents. A distribution pipe section 31 is provided above the tank storage section 30 for distributing city water and the liquid agent from each liquid storage tank. Detergent nozzle 11, water nozzles 12, 13 and 15, and coat nozzles 16 and 17 are led out to distribution pipe section 31 via electromagnetic valves (not shown), respectively.

The detergent nozzles 11 are provided at a plurality of locations in the left-right direction of the ceiling portion 2c, and are also provided at both stand portions 2d (not shown). A detergent nozzle 11 is arranged between the inlet surface 2a and the top brush 4, and sprays washing water consisting of an aqueous detergent solution.

Water nozzles 12, 13, and 15 are provided at a plurality of locations in the left-right direction of the ceiling portion 2c, and are also provided at both stand portions 2d (not shown). A water nozzle 12 is arranged between the detergent nozzle 11 and the inlet face 2a. A water nozzle 13 is arranged between the top brush 4 and the outlet surface 2b. A water nozzle 15 is arranged between the water nozzle 13 and the outlet surface 2b.

The water nozzles 12 , 13 , 15 spray washing water made of city water onto the vehicle 70 to be washed. The water nozzles 12, 13, and 15 wash the vehicle 70 to be washed with water, and also rinse the vehicle 70 with detergent and a coating agent, which will be described later.

The coat nozzles 16 and 17 are provided at a plurality of locations in the left-right direction of the ceiling portion 2c, and are provided at both stand portions 2d, although not shown. The coating nozzles 16 and 17 inject an aqueous solution of a coating agent for coating the coated surface of the vehicle 70 to be cleaned. A coat nozzle 16 is arranged between the water nozzles 13 , 15 . A coat nozzle 17 is arranged between the water nozzle 12 and the detergent nozzle 11 .

Safety devices 40 are provided at both left and right ends of the car wash machine main body 2 on the side of the entrance surface 2a and on the left and right ends on the side of the exit surface 2b. The safety device 40 detects contact with an obstacle such as a person or a foreign object when the car wash machine main body 2 is moved. In addition, the safety device 40 on the side of the entrance surface 2a detects contact with the side edge of the vehicle 70 to be washed in addition to an obstacle.

The safety device 40 has extension members 41, 42, 43 attached to the side surfaces of the car wash machine main body 2 and extending in the front-rear direction. The extension member 41 is provided only on the safety device 40 on the entrance surface 2a side. The extension member 41 (first extension member) is attached to the upper portion of the inner surface of the stand portion 2d, and extends and protrudes in the front-rear direction from the entrance surface 2a. The extension member 41 may be attached to the lower surface of the ceiling portion 2c.

The extension member 42 (second extension member) is attached to the lower end portion of the outer surface of the stand portion 2d, and extends and protrudes in the front-rear direction from the entrance surface 2a or the exit surface 2b. The extension member 43 is attached to the upper portion of the outer surface of the stand portion 2d, and extends and protrudes in the front-rear direction from the entrance surface 2a or the exit surface 2b.

The extension member 42 supports the lower end of the wire 44 extending in the vertical direction, and the extension member 43 supports the upper end of the wire 44 . A detection sensor 45 for detecting vertical movement of the wire 44 is provided on the extension member 43 so as to face the upper end of the wire 44 .

3 and 4 are a front view and a top view showing a main part of the safety device 40 on the side of the entrance surface 2a. Moreover, FIG. 5 shows the A arrow view of FIG. 3, and FIG. 6 shows the B arrow view of FIG. A detection bar 51 extending vertically and a detection bar 52 extending horizontally are provided on the safety device 40 on the entrance surface 2a side. The detection bar 51 is arranged along the inner surface of the stand portion 2d, and the detection bar 52 is arranged along the lower surface of the stand portion 2d.

The detection bar 51 has a circular cross section and has a reduced diameter portion 51a at its upper end. As shown in the enlarged top view of FIG. 7, the diameter-reduced portion 51a is loosely fitted in a through-hole 41a (first through-hole) vertically penetrating the extension member 41, and is retained by a retainer pin 51c. be. Thereby, the detection bar 51 is supported by the through hole 41 a of the extension member 41 so as to be tiltable, vertically movable, and rotatable in the circumferential direction. That is, the through-hole 41 a constitutes a support portion (first support portion) that supports the upper end portion of the detection bar 51 .

The detection bar 52 has a circular cross-section and has a reduced diameter portion 52a at its outer end. As shown in the enlarged side view of FIG. 8, the reduced-diameter portion 52a is loosely fitted in a through-hole 42a (second through-hole) provided through the extension member 42 from side to side, and is retained by a retainer pin 52c. be. As a result, the detection bar 52 is supported by the through hole 42a of the extension member 42 so as to be tiltable, laterally movable, and circumferentially rotatable. In other words, the through hole 42 a constitutes a support portion (second support portion) that supports the outer end portion of the detection bar 52 .

A connecting member 53 connects the lower end of the detection bar 51 and the inner end of the detection bar 52 . The connecting member 53 is tilted upward with respect to the detection bar 52, and is attached to the detection bars 51 and 52 by shaft portions 53a and 53b at both ends so as to be rotatable about longitudinal axes.

An angle 56 protruding from the inlet surface 2a is attached to the inner surface of the stand portion 2d, and a support member 57 is provided on the angle 56. As shown in FIG. A hook-shaped rocking member 55 is attached to the support member 57 via a hinge 58 . As a result, the swing member 55 can swing in the front-rear direction with the swing shaft of the hinge 58 as the swing shaft 55a. The tip of the swinging member 55 is connected to the peripheral surface of the detection bar 51 via a ball joint 54 above the connecting member 53 . The ball joint 54 allows the detection bar 51 to tilt with respect to the swing member 55 .

The rocking member 55 extends outward from the rocking shaft 55a and has a facing portion 55b bent in the front-rear direction at its outer end. A detection sensor 59, which is a proximity switch, is attached to the support member 57 so as to face the facing portion 55b. When the swinging member 55 swings, the facing portion 55b retreats from the position facing the detection sensor 59. As shown in FIG. Thereby, the detection sensor 59 can detect the swinging motion of the swinging member 55 .

At this time, the horizontal distance L1 between the swing shaft 55a of the swing member 55 and the detection bar 51 is the horizontal distance between the detection bar 51 and the through hole 42a (second support portion) that supports the detection bar 52. It is formed smaller than L2. Thereby, the swinging angle of the swinging member 55 can be made larger than the inclination angle of the detection bar 51 in the front-rear direction. Therefore, even if the detection bar 52 is slightly inclined in the front-rear direction, the detection sensor 59 can reliably detect the swinging movement of the swinging member 55 .

As shown in FIGS. 3 and 6, when an obstacle contacts the detection bar 51 or the detection bar 52, the detection bars 51 and 52 are tilted. That is, the detection bar 51 supported at its upper end is inclined at its lower end toward the outlet surface 2b (see FIG. 1) with respect to the vertical, as indicated by a dashed line 51'. The detection bar 52 supported at its outer end is inclined at its inner end side toward the outlet surface 2b as indicated by a dashed line 52'. Further, since the swinging member 55 can be tilted with respect to the detection bar 51 by means of the ball joint 54, the swinging member 55 follows the detection bar 51 and swings around the swing shaft 55a as indicated by the dashed line 55'.

At this time, since the lower end of the detection bar 51 rises due to the inclination of the detection bar 51, the connecting member 53 rotates vertically as indicated by the dashed line 53' to change the inclination angle with respect to the detection bar 52. Thereby, the detection bar 51, the detection bar 52, the connection member 53, and the swing member 55 can smoothly change their postures.

Further, the reduced diameter portion 51a at the upper end of the detection bar 51 is loosely fitted in the through hole 41a, and the inclination of the detection bar 51 increases the distance between the ball joint 54 and the through hole 41a. As a result, the detection bar 51 slightly rotates in the circumferential direction and the upper end of the detection bar 51 slightly lowers. A reduced diameter portion 52a at the outer end of the detection bar 52 is loosely fitted in the through hole 42a. Therefore, the detection bar 52 and the connecting member 53 rotate slightly in the circumferential direction of the detection bar 52 due to the inclination of the detection bar 51, and the outer end of the detection bar 52 slightly moves in the horizontal direction. Therefore, the postures of the detection bar 51, the detection bar 52, the connecting member 53, and the swinging member 55 can be changed more smoothly.

In the car wash machine 1 configured as described above, the user drives the vehicle 70 to be washed to stop in front of the remote panel 7 and sets the washing conditions for the vehicle 70 to be washed from within the vehicle 70 to be washed. After setting the car wash conditions, the user moves the vehicle to be washed 70 to a predetermined washing start position.

By operating the remote panel 7, a washing course, a shampoo course, and a coating course can be selected. In the washing course, rotating brushes are rotated to jet washing water of city water from water nozzles 12, 13 and 15 to wash the vehicle 70 to be washed. In the shampoo course, the rotary brush is rotated to jet washing water containing detergent from the detergent nozzle 11 to wash the vehicle 70 to be washed. At this time, city water is sprayed from the water nozzles 12 and 13 to pre-wash and rinse the vehicle 70 to be washed. In the coating course, the vehicle to be washed 70 is washed in the same manner as the shampoo course, and then the vehicle to be washed 70 is coated with a coating agent.

9 to 11 are side views showing the car wash state of the shampoo course. When the shampoo course is selected and the car wash is started, as shown in FIG. 9, the car wash machine main body 2 moves behind the vehicle 70 to be washed (arrow E1) at a predetermined traveling speed (eg, 5 m/min). A first outward process is performed. In the first outbound process, while the vehicle shape sensor 9 detects the shape of the vehicle 70 to be washed, each rotating brush rotates to wash the front, rear and top surfaces of the vehicle 70 to be washed.

At this time, the washing water S2 of the detergent is jetted from the detergent nozzle 11 preceding the top brush 4. As shown in FIG. The washing water S1 is sprayed from the water nozzle 12 preceding the detergent nozzle 11, and the washing water S1 from the water nozzle 13 following the top brush 4 is sprayed. As a result, the top brush 4 and the side brushes 5 slide on the vehicle body surface of the vehicle 70 to be washed that is wet with the washing water S1, and washing is performed with the washing water S2 containing the detergent.

When washing up to the rear surface of the vehicle 70 to be washed is completed, the car wash machine main body 2 is reversed and moved forward of the vehicle 70 to be washed (arrow E2) as shown in FIG. In the first return process, washing water S1, which is city water, is sprayed from the water nozzles 12 and 13 while the rotating brush rotates. As a result, the vehicle 70 to be washed is washed with water and rinsed with the detergent.

When washing up to the front surface of the vehicle 70 to be washed is completed, the first return process is completed, and the rotation of the rotating brush is stopped. Then, as shown in FIG. 11, the car wash machine main body 2 is reversed and moved to the rear of the vehicle 70 to be washed (arrow E1) to perform the second outward process. In the second outward process, the air flow K1 is sent out from the top blower nozzle 21 and the side blower nozzle 22 to dry the vehicle 70 to be washed. When the second outward process ends, the car wash ends, and the vehicle 70 to be washed moves forward.

When the vehicle 70 to be washed is shifted in the left-right direction and stopped at the start of the car wash, the detection bar 51 of the car wash machine main body 2 that moves when the car wash starts and the side edge of the vehicle 70 to be washed come into contact with each other. Further, when there is an obstacle such as a person or a foreign object on the path of the moving car wash machine main body 2, the obstacle and the detection bar 52 come into contact with each other. In these cases, the detection bar 51 and the detection bar 52 are tilted and the swinging member 55 swings, which is detected by the detection sensor 59 . As a result, the movement of the car wash main body 2 is stopped.

Also, when a person approaches the path of the moving car wash machine body 2 during car washing and touches the wire 44, the wire 44 is pulled. Therefore, the upper end of the wire 44 is lowered and detected by the detection sensor 45 . As a result, the movement of the car wash main body 2 is stopped. Therefore, the safety device 40 ensures the safety of the car wash machine 1 .

According to this embodiment, the contact between the detection bar 51 (first detection bar) and the vehicle to be washed 70 and the contact between the detection bar 52 (second detection bar) and an obstacle are detected in the same way by the swinging of the swinging member 55. It is detected by sensor 59 . As a result, an increase in the cost of the car wash machine 1 can be suppressed and safety can be improved.

At this time, the connecting member 53 is tilted with respect to the detection bar 52 and both ends thereof are attached to the detection bars 51 and 52 so as to be rotatable about the axis in the front-rear direction. Also, the swinging member 55 is connected to the detection bar 51 via the ball joint 54 above the connecting member 53 . Thereby, the detection bar 51, the detection bar 52, the connection member 53, and the swing member 55 can smoothly change their postures. Therefore, when contacting an obstacle or the like, the swinging member 55 swings reliably and the detection sensor 59 can detect it.

Although the ball joint 54 is used to connect the swinging member 55 and the detection bar 51, any universal joint, such as a hook-shaped shaft joint, may be used. Use of the ball joint 54 is more desirable because the direction of the detection bar 51 can be changed smoothly with respect to the swing member 55 .

Further, the detection bar 51 is supported by the through hole 41a (first support portion) so as to be vertically movable and rotatable in the circumferential direction, and the outer end portion of the detection bar 52 is horizontally movable by the through hole 42a (second support portion). and circumferentially rotatably supported. Thereby, the detection bar 51, the detection bar 52, the connection member 53, and the swing member 55 can more smoothly change their postures.

Further, the upper end portion of the detection bar 51 is loosely fitted in the through hole 41a (first through hole) provided in the extension member 41 (first extension member). As a result, the detection bar 51 can be easily supported so as to be tiltable, vertically movable, and circumferentially rotatable. Further, the outer end of the detection bar 52 is loosely fitted in the through hole 42a (second through hole) provided in the extension member 42 (second extension member). As a result, the detection bar 52 can be easily supported so as to be tiltable, laterally movable, and circumferentially rotatable.

Further, the horizontal distance L1 between the swing shaft 55a of the swing member 55 and the detection bar 51 is set smaller than the horizontal distance L2 between the through hole 42a (second support portion) and the detection bar 51. . Therefore, even if the detection bar 52 is slightly inclined in the front-rear direction, the detection sensor 59 can reliably detect the swinging movement of the swinging member 55 .

In this embodiment, the safety device 40 having the detection bar 51 and the detection bar 52 may be provided not only on the entrance surface 2a side of the car wash machine main body 2 but also on the exit surface 2b side.

INDUSTRIAL APPLICABILITY According to the present invention, it can be used in a car wash machine equipped with a safety device.

1 car wash machine 2 car wash machine main body 2a entrance surface 2b exit surface 2c ceiling part 2d stand part 2d ceiling part 3 wheel 4 top brush 5 side brush 6 rocker brush 7 remote panel 8 operation panel 9 vehicle shape sensor 11 detergent nozzle 12, 13, 15 water nozzle 16, 17 coat nozzle 20 blower 21 top blower nozzle 22 side blower nozzle 40 safety device 41, 42, 43 extension member 41a, 42a through hole 44 wire 45 detection sensor 51, 52 detection bar 51a, 52a reduced diameter portion 53 connecting member 53a, 53b shaft portion 54 ball joint 55 swing member 55a swing shaft 55b facing portion 56 angle 57 support member 58 hinge 59 detection sensor 60 rail 70 vehicle to be washed G ground surface K1 air flow S1, S2 washing water

Claims (5)

A car wash machine main body formed in a gate shape in which upper ends of left and right facing stand parts are connected by a ceiling part and which moves in the front-rear direction with respect to the vehicle to be washed, and a contact with an obstacle during movement of the car wash machine main body. and a safety device for detecting, the safety device extending vertically along the inner side of the stand portion, and having an upper end portion tiltably supported by a first support portion of the car wash machine main body. a detection bar, a second detection bar extending laterally along the lower end of the stand portion and having an outer end supported by a second support portion of the car wash machine body so as to be tiltable, and a lower end portion of the first detection bar. and a connecting member for connecting the first detecting bar to the inner end of the second detecting bar, and a connecting member having one end attached to the car wash machine main body and swinging in the front-rear direction and having the other end positioned above the connecting member and the first detecting bar. and a detection sensor that detects the swinging of the swinging member,
The connecting member is tilted with respect to the second detection bar, and both ends thereof are attached to the first detection bar and the second detection bar so as to be rotatable about longitudinal axes, respectively, and the rocking member connects the universal joint. The car wash machine is connected to the first detection bar through the first detection bar. 2. A car wash machine according to claim 1, wherein said universal joint is a ball joint. The first supporting part supports the first detecting bar so as to be vertically movable and rotatable in the circumferential direction, and the second supporting part supports the second detecting bar so as to be horizontally movable and rotatable in the circumferential direction. The car wash machine according to claim 1 or 2, characterized by: A first extension member that extends in the front-rear direction from an upper portion on the inner surface side of the stand portion and is attached to the car wash machine main body, and a first extension member that extends in the front-rear direction from a lower portion on the outer surface side of the stand portion and is attached to the car wash machine main body. 2 extending members, wherein the first support portion is formed by a first through hole penetrating vertically through the first extension member, and loosely fits the upper end portion of the first detection bar, and the second support portion is provided. 4. The car wash machine according to claim 3, wherein the portion is formed by a second through hole penetrating right and left through the second extending member, and the outer end portion of the second detection bar is loosely fitted. 1. The distance between the swing shaft of the swing member and the first detection bar in the horizontal direction is smaller than the distance between the second support portion and the first detection bar in the horizontal direction. The car wash machine according to any one of claims 4 to 5.

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