JPH034601Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a so-called gate-shaped car wash machine that travels across a vehicle and cleans the surface of the car body. This invention relates to a device that takes up less space.

[Prior Art and its Problems] Conventionally, in this type of apparatus, a car wash machine main body and a cart reciprocate at a constant speed to wash cars. However, with the recent diversification of needs, variable speed control of car washes has become more and more popular in order to meet various requests such as ``I want my car washed as quickly as possible'' or ``I want my car washed very carefully and thoroughly.'' It is becoming desired.

On the other hand, it would be possible to use an inverter to variably control the operation of the electric motors for driving the car wash main body and the trolley device, but this would require separate inverters for the main body and the trolley, making it expensive. There was a disadvantage that the control became complicated because it was necessary to operate each of them individually.

In addition, conventionally, the main body of the car wash machine and the trolley device were run at the same time, and when one reached the running limit, the car was washed by switching to running only the other. The car wash processing speed for the vehicle is different depending on when the car is being washed.
It was difficult to uniformly wash the car body.

[Means for Solving the Problems] This invention consists of a gate-shaped car wash machine body that runs across vehicles, a dolly device that moves the vehicle being washed, and a dolly device that is provided on each of the car wash body and the dolly device. a traveling electric motor, an inverter device that performs variable speed control of the traveling electric motor, a switching means that alternately switches and connects the output of the inverter device to the traveling electric motor, and the car wash machine main body or trolley. a detection means for detecting when the device reaches its travel limit position as the device travels, and first connects the output of the inverter device to one of the travel electric motors to run the car wash machine main body or the trolley device;
When the detecting means detects that the traveling limit position has been reached during this traveling, the switching means controls to switch the connection of the inverter device to the other traveling electric motor, so that the car wash machine main body and the trolley device are alternately driven. This problem is solved by making it possible to control the car wash machine main body and the trolley device at variable speeds using only one inverter device.

[Example] Hereinafter, a specific example thereof will be explained based on the drawings.

Figure 1 is an external front view of one embodiment of the present invention;
The figure is an explanatory diagram of the main part of the embodiment. Reference numeral 1 denotes a car wash machine main body formed in the shape of a gate, which travels back and forth on rails 2 and 2' so as to straddle a vehicle stopped between the rails. A top brush 3 is swingably supported via a pair of swing arms 4, 4', and is swung mainly by contact with the vehicle body to brush and clean the top surface of the vehicle body. A pair of side brushes 5 and 5' are hung from the top of the main body so that they can move left and right, that is, open and close.They open and close along the side shape of the vehicle body, and clean the front, rear, and both side surfaces of the vehicle body. Blower nozzles 6, 7, and 7' are provided above and on both sides of the vehicle body, and blow air at high pressure onto the vehicle body to scatter water on the vehicle body and dry it. Among these, the nozzle 6 is formed to be able to move up and down by a link mechanism or the like, and moves up and down along the shape of the top surface of the vehicle body. Reference numeral 8 denotes an electric motor for driving the wheels 9 for driving the main body. Reference numeral 10 denotes an operation panel provided on the front side of the main body, which is used to turn on the power, perform car washing operations, and accelerate/decelerate the car washing speed. In addition, although not particularly shown, nozzles for spraying detergent such as water, detergent water, wax liquid, etc. are arranged at appropriate positions on the main body of the car wash machine.

Reference numeral 11 denotes a bogie device, in which a bogie 1 runs on rails 12, 12' installed inside the rails 2, 2'.
3, and an electric motor 15 for transporting the trolley 13 via a chain mechanism 14. Therefore, by placing the front or rear wheels of the vehicle to be washed on top of the truck 13, the vehicle can be moved appropriately as the truck 13 travels. Reference numerals 16 and 16' designate limit switches for detecting the front and rear travel limits of the truck 13.

FIG. 3 is a block diagram showing the control circuit of the embodiment. Reference numeral 20 denotes a control section, which includes a microprocessor, performs program operations in response to operation inputs on the operation panel 10, and controls the operations of the car wash machine main body 1, the trolley device 11, and the like. 21 is an inverter device which receives a command from the control unit 20 via a signal line 22 and outputs a current having a frequency according to the command. Reference numeral 23 denotes a switching means that alternately switches and connects the output end of the inverter device 21 to the traveling motor 8 of the car wash machine main body 1 and the traveling motor 15 of the trolley device 11, and receives commands from the control section 20 via the signal line 24. It receives the signal and performs a switching operation.

FIG. 4 is a flowchart showing the main part of the program registered in the control section 20, that is, the travel control operation of the car wash machine main body and the trolley device.The operation of this example will be explained below based on this diagram.

When a car wash is started and the vehicle enters the running state, first the direction of travel is confirmed, that is, whether it is going forward or backward (1). Turn on the power and first move the trolley 13 back and forth (2). As trolley 13 moves back and forth, trolley 1
When the limit switch 16 detects that the motor 3 has reached the front running limit position (3), the switching means 23 switches to energize the electric motor 8 of the car wash main body 1, causing the car wash main body 1 to move forward and backward (4). ).

If it is confirmed that it is a go-around in step (1), the bogie 13 is first made to go-around (5), and when the limit switch 16' detects that the go-around limit has been reached.
(6), The switching means 23 causes the car wash machine to move back (7).

When the main body 1 finishes washing the rear end or the front end of the vehicle and completes the series of forward or backward movements (8), it interrupts the output of the inverter device 21 and stops the vehicle (9). , return.

Therefore, in this example, as described above, the trolley is first allowed to travel as far as it can travel, and then the vehicle is controlled to switch to the running of the car wash machine itself, so that one inverter device can control the travel of the trolley and the car wash machine main body.

In this embodiment, the trolley device 11 is operated first, but the car wash machine main body 1 may be operated first. In this case, it is necessary to provide means for detecting the travel limit position of the car wash machine body 1 in place of the limit switches 16, 16'.
Further, the means for detecting the travel limit position is not limited to the limit switches 16, 16', but may be of a type that detects the travel position by counting the time or distance traveled.

[Effects of the invention] This invention is constructed as described above, and it is possible to control the running of both the car wash machine main body and the trolley device using the inverter device of the stand, and the inverter device is provided for each of the car wash machine main body and the cart device. This eliminates the need for a variable speed control system, which can be constructed at low cost, and also simplifies the variable speed control of traveling without the need to control the main body and the truck individually. Furthermore, since the car wash machine main body and the trolley device run alternately at a speed that corresponds to the output of the inverter device, the car body can always be washed at a uniform processing speed, making it possible to wash the car evenly and with high efficiency.

[Brief explanation of drawings]

FIG. 1 is an external front view of an embodiment according to the present invention. Second
The figure is an explanatory diagram of the main parts of the embodiment. FIG. 3 is a block diagram showing the main control system of the embodiment. FIG. 4 is a flowchart showing the main part of the control program of the embodiment. Reference numeral 1 denotes the main body of the car wash machine, 8 a motor for driving the main body of the car wash, 11 a trolley device, 15 a motor for running the trolley device, 16 and 16' limit switches as detection means, 20 a control section as control means, and 21 The inverter device 23 is a switching means.

Claims (1)

[Scope of utility model registration request] A gate-shaped car wash machine body that runs across vehicles, a trolley device that moves the vehicle being washed, a running electric motor provided in each of the car wash machine body and the trolley device, and variable speed control of the running electric motor. one inverter device that performs the above, a switching means that alternately switches and connects the output of the inverter device to the traveling electric motor, and detects when the car wash machine main body or trolley device reaches its travel limit position as it travels. First, the output of the inverter device is connected to one of the traveling electric motors, and the car wash machine main body or the trolley device is driven, and as the vehicle travels, the detection means detects when the traveling limit position is reached. The car wash machine is characterized by comprising: control means that controls the switching means to switch the connection of the inverter device to the other running electric motor, thereby causing the car wash machine main body and the trolley device to run alternately.