JPH0571425B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a car washing device for washing an automobile.

[Prior art] Recently, when a coin (for example, 100 yen) is inserted and a start switch is pressed, the nozzle emits a signal for a predetermined period of time (for example, 500 yen).
2. Description of the Related Art There is a simple car washing device in the form of a so-called vending machine that sprays water or wash water containing wax or detergent (hereinafter simply referred to as water) and washes the car with that water.

By the way, in this type of car wash device, water is sprayed from the nozzle as soon as the start switch is pressed, and water is also sprayed from the nozzle while the nozzle is being moved from the car wash device to the car or while the nozzle is being moved during the car wash. There is a problem that water is wasted if the nozzle is released, and if the nozzle is erroneously directed upward, the water will scatter.

[Problems to be Solved] Therefore, it is an object of the present invention to provide a car washing device that can spray water when the nozzle is directed toward a car, but does not spray water when the nozzle is directed upward. .

[Means for Solving the Problems] According to the present invention, a hose is connected to a pump connected to a water tank, a nozzle is provided at the tip of the hose, and the drive of the pump is controlled to spray water from the nozzle. In a car wash apparatus equipped with an injection control means for controlling, an object detection means for detecting the presence or absence of an object within a certain distance is provided at the tip of a nozzle, and the injection control means generates a detection signal when the object detection means detects an object. It has the function of driving the pump.

[Description of Effects] Therefore, when the worker moves from the car wash device to the car, the nozzle is directed upward. At that time, since the object detection means does not detect anything, the injection control means does not drive the pump, so water is not injected, no water is wasted, and no water is splashed. When the worker moves toward the car and directs the nozzle toward the car, the object detection means detects the car, and the output of the object detection means causes the injection control means to drive the pump to perform the car washing operation.

Also, if you accidentally point the nozzle upward, no water will be sprayed.

As described above, according to the present invention, it is possible to provide a rational technique that does not waste water when washing a car using a nozzle.

[Preferred Embodiment] When carrying out the present invention, a sensor consisting of a transmitter that emits ultrasonic waves or infrared rays and a receiver that receives reflected waves or reflected light is used as the object detecting means, and the object detecting means is a sensor that includes a transmitter that emits ultrasonic waves or infrared rays, and a receiver that receives reflected waves or reflected light. It is preferable to output a detection signal when an object is detected.

In carrying out the present invention, it is preferable to provide a sensor disabling switch that disables the non-detection signal of the sensor and injects water. In this way, water can be sprayed even from a distance where the sensor does not detect an object.

Further, in practicing the present invention, coins (e.g.
It is preferable to provide a coin selector that detects the insertion of 100 yen).

When implementing the present invention, a first AND circuit that cumulatively outputs a control signal for a predetermined period of time (for example, 5 minutes) to the injection control means based on the detection signal of the coin selector and the ON signal of the start switch; An OR circuit that outputs a control signal based on the signal or the ON formula of the sensor disable switch, and a second AND circuit that outputs a drive signal to the pump motor based on the outputs of the first AND circuit and the OR circuit. It is preferable to use a control device such as:

[Examples] Examples of the present invention will be described below with reference to the drawings.

In FIG. 1, a tank 3 is provided at the bottom of a case 2 of the car wash device, which is generally indicated by 1, and water from a water source (not shown) is supplied to the tank 3 by a float valve 4 via a water supply pipe 5 up to a certain water level. It is becoming more and more common. As mentioned above, wax and detergent are mixed into this water as necessary. Note that 6 is a main valve provided in the water supply pipe 5. A water pipe 7 is connected to the lower part of the tank 3, and the water in the tank 3 is supplied by a motor 8 interposed in the middle of the water pipe 7.
Water is sprayed from the tip of a nozzle 11 through a hose 10 connected to a water pipe 7 by a pump 9 driven by a pump 9 .

In FIG. 2, at the tip of this nozzle 11,
A sensor 12 consisting of a transmitter that emits ultrasonic waves A serving as object detection means and a receiver that receives reflected waves is provided, and outputs a detection signal when an object, that is, a vehicle body is within, for example, 50 cm. There is. Note that 13 also applies when the sensor 12 does not detect the vehicle body, that is, when the vehicle body is more than 50 cm away.
A sensor disable switch that allows water to be injected from the nozzle 11 when turned on; 14 is a nozzle grip; 1
5 is a grip.

On the other hand, an operation panel 16 is provided at the top of the case 2, and a coin (for example, 100 yen) is inserted into the operation panel 16.
An input port 17 and a start switch 18 are provided. The coin selector 19 (Fig. 3), which is connected to the coin slot 17 and detects the insertion of a 100 yen coin and outputs a detection signal, the start switch 18, the sensor 12, the sensor disable switch 13, and the motor 8 are connected to the signal line L1 or It is connected to a control device 20, which is an injection control means provided inside the case 2, through L5.

In FIG. 3, the control device 20 includes a coin detection signal from the coin selector 19 and a start switch 18.
A first AND circuit 2 that cumulatively outputs a control signal for a predetermined period of time (for example, 5 minutes) based on the ON signal of
1, an OR circuit 22 that outputs a control signal based on the vehicle body detection signal of the sensor 12 or the ON signal of the sensor disable switch 13, and a first AND circuit 2.
1 and a second AND circuit 23 that outputs a drive signal to the motor 8 based on the outputs of the OR circuit 22.

Next, the operation will be explained mainly with reference to FIG.

When a coin is inserted (step S1) and the start switch 18 is pressed (switch S2), the first AND circuit 21 cumulatively operates for a predetermined time based on the coin detection signal of the coin selector 19 and the ON signal of the start switch 18. (For 5 minutes) A control signal is output to the second AND circuit 23. Then, within the predetermined time (in the case of NO in step S3), if the sensor disable switch 13 is not pressed (in the case of NO in step S3),
If step S4 is NO), when sensor 12 detects the vehicle body (if step S5 is YES), OR circuit 2
2 outputs a control signal to the second AND circuit 23. The second AND circuit 23 is the first AND circuit 2
1 and the output signal of the OR circuit 22.
A drive signal is output to the nozzle 11 (step S6).
Water is sprayed from the machine to wash the car. When the nozzle 11 separates from the vehicle body and the sensor 12 no longer detects the vehicle body (NO in step S5), the drive of the motor 8 is stopped (step S7) and the process returns to step S3.
In other words, when the sensor 12 is detecting the vehicle body,
Repeat steps S3→S4→S5→S6, and if no vehicle is detected, repeat steps S3→S4→S5→S7. If the sensor disable switch 13 is pressed (YES in step S4), the process moves to step S6, the motor 8 is driven, and water is injected from the nozzle 11. Then, as long as the invalidation switch 13 is pressed, steps S3→S4→S6 are repeated. When a predetermined period of time has elapsed (if step S3 is YES), the first AND circuit 21 stops outputting the control signal, and the second AND circuit 23 starts driving the motor 8 based on this control signal stop. Stop and finish the car wash (step S8).

[Effects of the Invention] As described above, according to the present invention, the following excellent effects are achieved.

(i) If there is no object within a certain distance, the pump will not be activated, so if you point the nozzle upward, the water will no longer be sprayed.

(ii) Therefore, there is no wastage of water when moving the nozzle from the car wash device to the car, and there is no need to point the nozzle upward and cause water to scatter.

(iii) Car washing work is exactly the same as before, and the nozzle is not directed upwards to spray water, so workers can wash cars with peace of mind.

(iv) If you want to stop water jetting during work, simply point the nozzle upward; this is suitable, for example, when you want to temporarily stop work.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention;
FIG. 2 is a detailed view of the nors, FIG. 3 is a control block diagram, and FIG. 4 is a control flowchart. 11...Nozzle, 12...Sensor, 13...Sensor disable switch, 18...Start switch, 19
... Coin selector, 20 ... Control device.

Claims (1)

[Claims] 1. A car wash device in which a hose is connected to a pump connected to a water tank, a nozzle is provided at the tip of the hose, and an injection control means is provided for controlling the driving of the pump and controlling the injection of water from the nozzle, An object detection means for detecting the presence or absence of an object within a certain distance is provided at the tip of the nozzle, and the injection control means has a function of driving the pump with a detection signal when the object detection means detects an object. Car wash equipment.