JP4900223B2 - Car wash machine - Google Patents

Description

  The present invention relates to a car wash machine that is installed, for example, in a gas station and washes a vehicle to be cleaned, and more particularly to a safety device thereof.

As an example of a conventional safety device for a car wash machine, Patent Document 1 discloses an emergency stop mechanism.
This emergency stop mechanism will be described. The emergency stop mechanism is composed of a device main body, an upper bracket, a lower bracket, and a wire. The device main body is fixed to the upper part of the side surface of the car wash machine main body, and the upper bracket can be freely rotated in the vertical direction inside. And a spring body that is fixed at one end to the upper bracket and supports the upper bracket horizontally. When the upper bracket is horizontally supported by the spring body, the upper bracket is detected and turned on (operating state). ) And a control panel for urgently stopping the car wash machine main body when the proximity switch is turned off (non-operating state).

According to the emergency stop mechanism, when the wire is pulled due to contact with an obstacle or the like, the upper bracket is pulled downward and the proximity switch is turned off (operating state) to off (non-operating state). When the proximity switch is turned off as the car wash machine travels, it is judged that the car wash machine has come into contact with an obstacle, etc. It has been.
Japanese Patent Laid-Open No. 2003-276577

  However, according to the construction of the emergency stop mechanism, the obstacle is brought into contact with the wire of the car wash machine and the emergency stop device is activated, so that the car wash machine stops running even if the car wash machine is emergency stopped. During this time, the car wash machine travels for the braking distance. Therefore, when the obstacle is in contact with the wire and is sandwiched between the wire and the outer wall or pillar surrounding the car wash machine main body or adjacent thereto, the obstacle is There was a risk that it would be sandwiched between them.

  Further, the car wash machine body is provided with a travel button for manually running the car wash machine body (corresponding to forward / backward movement), and an emergency stop car wash machine body is operated by operating the travel button by an operator. There is a risk of operating the travel button by mistakenly in the direction of travel of the car washer due to an operator's operation error caused by the occurrence of a contact accident. There was a risk of further expanding the damage.

  Therefore, the present invention provides a car wash machine that can quickly avoid the state even when an obstacle is pinched by contact with the car wash machine body, and can perform the subsequent countermeasures quickly and accurately. It is intended.

In order to achieve the above-mentioned object, the invention described in claim 1 of the present invention is a car wash machine for washing a vehicle to be washed while running the car wash machine body in the front-rear direction, Protruding in the front-rear direction, having a detection means for detecting contact between the car wash machine main body and an obstacle, and a control means for controlling travel of the car wash machine main body,
When the detection means detects contact between the car wash machine main body and an obstacle, the control means urgently stops the running of the car wash machine main body, and the detection means is either in the front-rear direction of the car wash machine main body. And when the traveling direction of the car washing machine main body immediately before the emergency stop coincides with the determined front-rear direction of the detecting means, the traveling direction immediately before the car washing machine main body is emergency stopped The vehicle travels in a reverse direction for a preset distance , and when the traveling direction of the car wash machine body immediately before the emergency stop is not coincident with the traveling direction of the car wash machine, traveling in the opposite direction to the previous traveling direction is The car wash machine main body is kept running without being performed .

According to the above configuration, when the contact between the car wash machine body and the obstacle is detected by the detection means (when an abnormality detection signal is output from the detection means), the travel of the car wash machine body is urgently stopped by the control means. . Further, it is determined whether the detection means that detects the contact of the obstacle is in the front-rear direction of the car wash machine body, and the front-rear direction of the detection means coincides with the traveling direction of the car wash machine body immediately before the emergency stop. When an obstacle facing the traveling direction of the car wash machine main body is detected, the car wash machine body travels a predetermined distance in the opposite direction to the travel direction immediately before the emergency stop. Immediately after the car wash machine's travel has been urgently stopped, the car wash machine's avoidance travels in the avoidance direction, so that obstacles that come into contact with the car wash machine in front of the car wash machine's travel direction are pinched by the car wash machine body. Even in such a case, the situation is quickly avoided.

  Further, the invention according to claim 2 is the invention according to claim 1, wherein the preset distance for running the car wash machine body in the reverse direction is that when the car wash machine body is emergency stopped, the car wash machine It is characterized in that it is set to a braking distance over which the car washer main body travels while traveling of the machine main body is stopped or a distance for avoiding a contact state between the car washer main body and the obstacle. .

  According to the above configuration, the preset distance by which the car wash machine body travels in the reverse direction is such that the car wash machine body travels while the car wash machine body stops running when the car wash machine body is urgently stopped. More than the braking distance to be set, or by setting the distance to avoid contact state between the car wash machine main body and the obstacle, when taking any measures against the obstacle sandwiched between the car wash machine main body, It is possible to approach the obstacle without considering the operation of the car wash machine body, and the car wash machine body is prevented from obstructing the handling of the obstacle.

  The invention according to claim 3 is the invention according to claim 1 or claim 2, wherein the car wash machine body has a forward button for moving the car wash machine body forward and the car wash machine body rearward. A manual travel button composed of a reverse button for traveling is provided, and when the travel of the car wash machine body is urgently stopped, the control means moves to a travel direction that coincides with the travel direction immediately before the travel of the car wash machine body is urgently stopped. The operation of the manual travel button for traveling the car wash machine body is invalidated.

  According to the above configuration, when the traveling of the car wash machine body is urgently stopped, the operation of the manual travel button for traveling the car wash machine body in the traveling direction that coincides with the traveling direction immediately before the emergency stop is invalidated, After the car wash machine main body is urgently stopped, it is prevented that the car wash machine main body travels in the direction of the obstacle by the operator.

  The invention according to claim 4 is the invention according to claim 3, wherein the control means is operated when the manual travel button that disables the operation is operated for a predetermined time or is set in advance. The operation of the manual travel button is validated when operated more than a preset number of operations within a certain time.

  According to the above configuration, when the manual travel button that disables the operation is operated for a predetermined time, or when the manual travel button is operated more than the predetermined number of operations within the predetermined time, the manual travel button By enabling the operation, the manual travel button is operated by an operator having a certain time margin, and the car wash machine main body is travel-controlled according to the situation at the site.

According to the car wash machine of the present invention, when the detection means detects contact between the car wash machine body and the obstacle, the control means stops the car wash machine main body urgently, and the safety of the obstacle can be secured. When the detection means that detects the contact of an object is in a direction that matches the traveling direction of the car wash machine body, that is, when the contact between the obstacle located in the running direction of the car wash machine body and the car wash machine body is detected, By traveling a predetermined distance in the opposite direction to the traveling direction immediately before the main body is stopped, an obstacle that comes into contact with the car washing machine main body in front of the car washing machine main body is sandwiched between the car washing machine main body. Even in such a case, the situation can be avoided quickly, damage can be reduced, and further, the vehicle washing machine body is traveling in the avoidance direction, so that subsequent countermeasures against obstacles can be performed quickly and accurately. This Can.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 are a front view, a side view, and a plan view of a car wash machine according to an embodiment of the present invention.
The car wash machine in the embodiment of the present invention executes the car wash of the vehicle 1 to be cleaned while traveling along the traveling rail 3 laid on the floor via the plurality of wheels 2 across the vehicle 1 to be cleaned. The car wash machine body 4 includes a top brush 5, a side brush 6, and a rocker brush 7 as washing means for brushing the car to be washed 1, and blows air to dry the car to be washed 1. As a drying means, a top nozzle 8, a side nozzle 9 and a blower device 10 are provided, and further, a spray device (not shown) for spraying cleaning water, detergent or wax liquid onto the vehicle 1 to be cleaned, and a stop device (detection means) Example) 14 is provided. Further, a traveling drive device (inverter) 15 for driving the wheel 2 and driving the vehicle washer 4 is connected to the wheel 2 of the car washer main body 4. Hereinafter, the traveling direction of the car wash machine body 4 is referred to as the front-rear direction A.

  A control panel 16 </ b> A is provided on the front (front) side of the car wash machine body 4. On the surface of the control panel 16A, there is disposed an operation panel 17 on which operation switches for inputting start and stop commands, a car wash mode, and the like are arranged. The operation panel 17 is composed of a microcomputer and includes the washing means and the drying means. , A spray device, a drive means, a stop device (an example of a detection means) 14, and a control device (an example of a control means) 16 for controlling the car wash machine body 4 is disposed. The wheel 2 of the car wash machine body 4 is connected to a pulse encoder 18 that outputs a traveling pulse composed of the rotational direction and the rotational speed of the wheel 2.

  The said stop apparatus 14 is arrange | positioned at four corners of the front and rear, right and left of the car wash machine main body 4, and is comprised from the apparatus main body 20, the upper bracket 21, the lower bracket 22, and the wire 23, respectively. Each of the apparatus main bodies 20 is fixed to the upper part of the side surface of the car wash machine main body 4, and a support shaft (not shown) that rotatably supports the upper bracket 21 and one end thereof are fixed to the upper bracket 21 therein. A spring body (not shown) that supports the upper bracket 21 horizontally, and a proximity switch 26 (which is turned on (operating state) when the upper bracket 21 is horizontally supported by the spring body and detected) FIG. 4) is provided.

  The upper bracket 21 is a rod-like bracket that protrudes from the apparatus main body 20 in the moving direction of the car wash machine body 4, and is supported upward with the support shaft of the apparatus main body 20 as a fulcrum so that it can swing up and down. The lower bracket 22 is a bar-shaped bracket that faces the upper bracket 21 and protrudes in the moving direction of the car wash machine body 4, and is fixed to the lower side of the car wash machine body 4. The lower bracket 22 is formed shorter than the upper bracket 21, and a wire 23 is stretched between the outer ends of the upper bracket 21 and the lower bracket 22.

  According to the configuration of the stop device 14, in a state where the wire 23 is not in contact with the obstacle R, the upper bracket 21 is supported by the spring body and is kept horizontal, and the proximity switch 26 is turned on (operating state). When the wire 23 contacts the obstacle R and the upper bracket 21 is pulled downward against the urging force of the spring body, the proximity switch 26 is turned off (non-operating state), and the contact of the obstacle R is detected. .

  Further, as shown in FIG. 4, a manual travel comprising an operation button 17 for driving the car wash machine body 4 forward and a reverse button 42 for running the car wash machine body 4 backward on the operation panel 17 of the car wash machine body 4. A button 40 is provided and connected to the control device 16.

  FIG. 5 shows an operation block diagram for explaining the function of the control device 16 when the obstacle R is detected by the stop device 14. Of the four stop devices 14, the proximity switch 26 of the two stop devices 14 disposed in front (front) of the car wash machine body 4 in the front-rear direction A is a proximity switch 26 a, and is located on the rear surface of the car wash machine body 4. The proximity switches 26 of the two arranged stop devices 14 are referred to as proximity switches 26b.

  In FIG. 5, reference numeral 30 denotes a travel distance detection unit that detects the travel distance of the car wash machine body 4 from a predetermined stop position (home position of the car wash machine body 4) by counting the travel pulses output from the pulse encoder 18. , 31 is a travel direction detection unit that detects the travel direction of the car wash machine body 4 by increasing or decreasing the travel distance detected by the travel distance detection unit 30, and 32 is a travel of the car wash machine body 4 detected by the travel direction detection unit 31. A forward abnormality detection unit 33 that outputs a backward avoidance signal when the direction is forward and at least one of the detection signals of the two proximity switches 26a in the front is turned off (when an abnormality detection signal is input), 33 Means that the traveling direction of the car wash machine body 4 detected by the traveling direction detector 31 is backward, and at least one of the detection signals of the two proximity switches 26b behind is turned off. And (when signal abnormality detection is input), the rear abnormality detection section for outputting an avoidance signal forward, 34 is a running control section.

  The travel control unit 34 outputs a travel command (not shown) input based on a car wash condition such as a car wash course, a travel distance of the car wash machine body 4 detected by the travel distance detection unit 30, and a front abnormality detection unit 32. On the basis of the backward avoidance signal, the forward avoidance signal output from the rear abnormality detector 33, the forward button 41 operation signal, and the reverse button 42 operation signal. A control signal to be controlled is output.

The operation of the travel control unit 34 will be described in detail with reference to the flowchart of FIG.
When the vehicle to be cleaned 1 is started and the travel of the car wash machine 4 is controlled according to the car wash conditions such as the car wash course (step-1), at least one of the detection signals of the proximity switches 26a and 26b is When turned off (when an abnormality detection signal is input) (step-2), an emergency stop signal for stopping the traveling of the car wash machine body 4 is output to the inverter 15 (step-3), and the obstacle R is contacted. An emergency stop of the car wash machine main body 4 is notified (for example, a signal lamp is turned on) (step-4).

  Subsequently, when a forward or backward avoidance signal is output from the forward abnormality detection unit 32 or the rear abnormality detection unit 33 (step -5), a traveling command in a direction opposite to the traveling direction so far is sent to the inverter 15. (Step-6), and based on the output of the travel distance detector 30, the distance traveled by the car wash machine body 4 until the car wash machine body 4 travels in the opposite direction, that is, the braking distance L of the car wash machine body 4 (Step-7), and then confirms whether or not the car wash machine body 4 has started running in the reverse direction (Step-8). If confirmed, the car wash machine is based on the output of the travel distance detector 30. The travel distance in the reverse direction of the main body 4 is measured (step-9), and when the travel distance in the reverse direction becomes the measured braking distance L (step-10), a stop signal is output to the inverter 15 (step-9). -11).

  In Step-5, when the traveling of the car wash machine body 4 is stopped without outputting the front and rear avoidance signals from the front abnormality detection unit 32 and the rear abnormality detection unit 33, or in Step-11, the car wash machine When the traveling of the main body 4 is stopped, it is determined whether or not the traveling direction of the car washing machine main body 4 immediately before the car washing machine main body 4 is immediately stopped is forward (step -12), and the traveling direction of the car washing machine main body 4 is determined. Is forward, the operation signal of the forward button 41 of the manual travel button 40 is invalidated (step -13), and the first timer that counts the preset operation invalid time of the forward button 41 built in the travel control unit 34 The time is measured (step -14), and it is confirmed whether or not an operation signal is input from the forward button 41 (step -15). When the input of the operation signal of the forward button 41 is confirmed, the time is measured by the second timer that counts the input time of the operation signal (step -16), and the time measured by the second timer is set to the preset time. If it exceeds, that is, if an operation signal is input for a preset time from the forward button 41 (step-17), the invalidation of the forward button 41 is canceled (step-18), and then the operation panel 17 is operated. It will be in a standby state. In step-15, when the forward button 41 is not operated, the input of the operation signal is not confirmed, and the elapse of a fixed time is measured by the first timer that counts the operation invalid time (step-19), The process proceeds to step -18 to cancel the invalidation of the forward button 41.

  In step-12, if the direction of travel of the car wash machine body 4 is backward, the operation signal of the reverse button 42 of the manual travel button 40 is invalidated (step-20), and is set in advance in the travel control unit 34. Further, the time is measured by a third timer that counts the operation invalid time of the reverse button 42 (step-21), and it is confirmed whether an operation signal is input from the reverse button 42 (step-22). When the input of the operation signal of the reverse button 42 is confirmed, the time is measured by a fourth timer that counts the input time of the operation signal (step -23), and the time measured by the fourth timer is set to a preset time. If it exceeds, that is, if an operation signal is input for a preset time from the reverse button 42 (step-24), the invalidation of the reverse button 42 is canceled (step-25), and then the operation panel 17 is operated. It will be in a standby state. In step-21, when the reverse button 42 is not operated, the input of the operation signal is not confirmed, and the passage of a fixed time is confirmed by the third timer that counts the operation invalid time (step-26), the above step The process proceeds to -25, and the invalidation of the reverse button 42 is canceled.

  In addition, when the invalidation of the forward button 41 or the reverse button 42 of the manual travel button 40 is canceled, the travel control unit 34 outputs a forward travel command to the inverter 15 in response to the operation signal of the forward button 41. In response to the operation signal of the reverse button 42, a backward travel command is output to the inverter 15.

  In Step-10, when the travel distance in the reverse direction matches the braking distance L, a stop signal is output. However, the braking distance L + α, that is, a preset distance α (> 0) is added to the braking distance L. The stop signal may be output at the distance (more than the braking distance).

  Further, in step-15 to step-18 or step-22 to step-25, when the manual travel button 40 whose operation is invalidated is operated for a predetermined time, the invalidity is canceled. The invalidation of the forward button 41 of the manual travel button 40 or the reverse button 42 may be canceled when the operation is performed more than a predetermined number of operations within a predetermined time set in advance.

A traveling operation of the car wash machine body 4 when the stopping device 14 is operated will be described with reference to FIG.
As shown in FIG. 7 (a), the car wash machine body 4 that has started washing the vehicle 1 to be washed is traveling forward (one direction), and as shown in FIG. As the vehicle travels, when the wire 23 of the stopping device 14 and the obstacle R come into contact with each other at a distance C from the home position (start position of the car wash machine body 4), a control signal for emergency stop is output from the travel control unit 34, The car wash machine body 4 is urgently stopped. As a result, as shown in FIG. 7C, the car wash machine main body 4 detected by contact with the obstacle R and urgently stopped at the position of the distance C travels by the braking distance L, and then the distance S from the home position. When the car wash machine body 4 is traveling forward as shown in FIG. 7D, contact with the obstacle R is detected by the front proximity switch 26a. The main body 4 travels backward by the braking distance L and stops. Note that the car wash machine body 4 disables the operation of the forward button 41 of the manual travel button 40 for a certain period of time, and when the invalidation is canceled, the car wash machine body 4 responds to the operation signal of the forward button 41 or the reverse button 42. Traveled. When the forward button 41 is continuously operated for a certain time, the invalidity of the forward button 41 is canceled.

  In the traveling operation of the car wash machine body 4, the case where the car wash machine body 4 contacts the obstacle R in the running direction of the car wash machine body 4 has been described. However, while the car wash machine body 4 travels forward, the obstacle R If the obstacle 23 contacts from behind, that is, when the obstacle R comes into contact with the traveling direction of the car wash machine body 4 from behind, when the wire 23 and the obstacle R come into contact with the stopping device 14, the traveling controller 34 controls the inverter 15. An emergency stop control signal is output to the car wash machine main body 4 after traveling the braking distance L and then stopped.

  As described above, according to the present embodiment, the car wash machine body 4 contacts the obstacle R in the traveling direction or the obstacle R coming from the traveling direction, and the proximity switch is connected via the wire 23 of the stop device 14. When an abnormality detection signal is output from 26a and 26b, the traveling of the car wash machine main body 4 is urgently stopped, and the car wash machine main body 4 is traveled by the braking distance L in the direction opposite to the previous travel direction, that is, the car wash machine main body. When the vehicle 4 travels in the avoidance direction for the braking distance L, even when an obstacle R that is in contact with the car wash machine body 4 is sandwiched between the car wash machine body 4, the state is quickly avoided and the damage is reduced. can do. Furthermore, since the car wash machine body 4 is traveling in the avoidance direction, the subsequent countermeasures against the obstacle R can be executed quickly and accurately.

  Further, according to the present embodiment, when the car wash machine body 4 travels urgently, the operation of the manual travel button 40 that causes the car wash machine body 4 to travel in the travel direction that coincides with the travel direction immediately before the emergency stop is performed. When the car wash machine body 4 traveling forward is urgently stopped, the operation of the forward button 41 is invalidated, and when the car wash machine body 4 traveling rearward is urgently stopped, the reverse button 42 By invalidating the operation, it is possible to prevent the operator from accidentally running the car wash machine body 4 in the direction of the obstacle R.

  Further, according to the present embodiment, when the manual travel button 40 that disables the operation is operated for a predetermined time, or is operated more than the predetermined number of operations within the predetermined time. When the operation of the manual travel button 40 becomes effective, the manual travel button 40 is operated by an operator having a certain time margin, and the car wash machine body 4 can travel according to the situation on the site.

  In the embodiment of the present invention, the distance that the car wash machine body 4 travels in the avoidance direction is set to be greater than or equal to the braking distance L, but this avoids the contact state between the car wash machine body 4 and the obstacle R. The distance can be set in advance and can be arbitrarily set (for example, a distance greater than or equal to the braking distance learned in advance), and the same effect as the present embodiment can be obtained.

  In the embodiment, the stop devices 14 are provided at the four front, rear, left and right corners of the car wash machine main body 4. However, when the wall W is only on one side in the gas station where the car wash machine is installed, the wall W It is possible to eliminate the stop device 14 that is not present.

  In the embodiment, the proximity switch 26 is used. However, the switch is not limited to the proximity switch, and any electrical switch means that requires a power supply may be used, and a photoelectric switch, a magnetic sensor, or the like can be used.

It is a side view of the car wash machine in this Embodiment. It is a front view of the car wash machine. It is a top view of the car wash machine. It is a front view of the operation panel of the car wash. It is a principal part block diagram of the control apparatus in the car wash machine. It is a flowchart which shows operation | movement of the traveling control part in the car wash. It is explanatory drawing which shows driving | running | working operation | movement of the car wash machine main body in the car wash machine.

Explanation of symbols

A Front-rear direction L Braking distance R Obstacle 1 Vehicle to be washed 4 Car wash machine main body 14 Stop device 15 Inverter 16 Control device 17 Operation panel 20 Device main body 21 Upper bracket 22 Lower bracket 23 Wire 26 Proximity switch 26a Front proximity switch 26b Rear Proximity switch 32 Front abnormality detection unit 33 Rear abnormality detection unit 34 Travel control unit 40 Manual travel button

Claims (4)

A car wash machine for washing a vehicle to be washed while running the car wash machine in the front-rear direction,
A detection means that is arranged to project in the front-rear direction of the car wash machine body, and detects contact between the car wash machine body and an obstacle;
Control means for controlling the traveling of the car wash machine body,
When the detection means detects contact between the car wash machine main body and an obstacle, the control means urgently stops the running of the car wash machine main body, and the detection means is either in the front-rear direction of the car wash machine main body. When the determined front-rear direction of the detection means coincides with the traveling direction of the car wash machine body immediately before the emergency stop, the car wash machine body is opposite to the previous traveling direction. When the traveling direction of the car wash machine body just before the emergency stop is not coincident with the front-rear direction of the detection means, the traveling direction opposite to the previous traveling direction is not performed. A car wash machine characterized in that travel of the car wash machine body is kept stopped . The preset distance that causes the car wash machine body to travel in the reverse direction is equal to or greater than the braking distance that the car wash machine body travels before the car wash machine body completely stops when the car wash machine body is urgently stopped. The car wash machine according to claim 1, wherein the car wash machine is set to a distance for avoiding a contact state between the car wash machine main body and the obstacle. The car wash machine main body is provided with a manual travel button composed of a forward button for running the car wash machine main body forward and a reverse button for running the car wash machine main body backward,
When the travel of the car wash machine main body is urgently stopped, the control means operates the manual travel button that causes the car wash machine body to travel in a travel direction that coincides with a travel direction immediately before the travel of the car wash machine main body is emergency stopped. The car wash machine according to claim 1 or 2, wherein the car wash machine is invalidated. The control means is configured to operate the manual travel button when the manual travel button that disables the operation is operated for a predetermined time set in advance, or when operated more than a predetermined number of operations within a predetermined time set in advance. The car wash machine according to claim 3, wherein the operation is enabled.

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