JPH0345447A - Car body upper surface drying device in car washer - Google Patents

Abstract

PURPOSE:To prevent a blower nozzle from coming in contact with a car body by controlling the traveling speed of a car washer main body or an automobile to be decreased during a fixed time when the rising operation of the blower nozzle conducted according to a detection signal from a car body detection means continues to the extent more than designated. CONSTITUTION:A portal car washer is constructed so that a blower nozzle 5 drying a car body by air spray caused by the operation of a blower is elevated along the shape of the upper surface of a car body. That is, carriers 10 are provided on the end portions of arms 9 extended on both sides of the blower nozzle 5, the carriers 10 are engaged with rails 1 formed on both sides of a car washer main body 1 to elevate and guide the blower nozzle 5 and the blower nozzle is elevated through a chain 12 by the operation of an air cylinder 14. The air cylinder 14 is controlled by control means according to detection signals of car body detection means 17a, 17b. In this case, when the rising operation of the blower nozzle 5 continues to the extent more than designated, the moving speed of the car washer main body 1 is controlled to be decreased during a designated time.

Description

[Detailed Description of the Invention] [Industrial Application Field 1] This invention applies to the washing TG body or the running of a car using PP.
Regarding a type of car wash machine that washes and dries automobiles, this is a car body top drying device in which a drying blower nozzle is moved up and down without contact with the car body following the shape of the top surface of the car body, and air is blown onto two sides of the car body to dry the car body. Regarding.

[Prior Art 1 Conventionally, as this type of device, for example, Japanese Patent Application Laid-open No. 1-1035
As seen in the No. 61 publication, a device is known in which a plurality of photoelectric switches are attached integrally with a blower nozzle, the photoelectric switches detect tl on the body surface, and the blower nozzle acts on the body surface in a non-contact manner.

In such a device, when a vehicle body is detected by a photoelectric switch on the front side of the blower nozzle in the operating direction, the blower nozzle is raised.
If the rear charging switch detects the vehicle body, the blower nozzle is held, and if both photoelectric switches do not detect the vehicle, the blower nozzle is lowered.

[Problem to be Solved by the Invention 1] However, in vehicles such as wagons that have a steeply sloped body surface that directly faces the blower nozzle, the blower nozzle cannot rise up to follow the slope and comes into contact with the vehicle body. There is a risk of causing the blower to become erect, and in order to ensure completely non-contact operation, the blower nozzle must be operated at a fairly low speed so that it can follow any surface of the medium body.

Particularly, in today's world where the demand for car washes is increasing and faster car washes are desired, there is a need for safe and effective countermeasures for automobiles with special shapes such as those described above.

Furthermore, on the surface of the vehicle body directly facing the direction in which the blower nozzle operates, there is a problem in that only the front photoelectric switch repeats detection and non-detection, and moves up and down in small increments, making it impossible to operate the blower nozzle stably.

Furthermore, if there is a protrusion such as a taxi indicator light or mirror on the vehicle body, the front charging switch detects this protrusion and avoids it from climbing (and when the charging switch does not detect it, the blower nozzle detects the protrusion). 11&^Cfu.r・ Therefore, the first problem of this invention is that even if an office worker who has a special shape, The goal is to create a device that allows the blower nozzle to work safely without contacting the vehicle body surface, and that can work on normal automobiles as quickly as possible.

The second object of this invention is to stabilize the blower nozzle as much as possible to increase the drying effect, and to
The question is whether the blower nozzle can be operated safely without touching the protrusions on the +11 body surface.

1.5! Means for solving the problem 1 Is this invention described in L? jSi problem and when the upward movement of the blower nozzle based on the detection signal of the TIL body calibration detection means continues for a predetermined period or more, the washing IH! Equipped with a means to control the running speed of the main body or the vehicle, if the vehicle body detection is not canceled within a predetermined time as the blower nozzle rises, it is determined that the slope is steep and there is a risk of collision, and the work speed is reduced. The aim is to provide a device that can slow down and ensure safety.

Further, when the upward movement of the blower 7 is continued for a predetermined period or more, the washing I! 18! Safety may be ensured by controlling the main body or the vehicle to stop running and restarting the vehicle only after the vehicle body detection means changes to non-detection.

Furthermore, in response to the second problem, 111f's1 has a detection position set on the front side in the direction of action of the blower outlet of the blower nozzle.
At least two detection means, a detection means and a second detection means whose detection position is set to the rear side of the first detection means 7, detect +11 bodies, and the first detection means detects the vehicle body. When this occurs, the blower nozzle is raised, and when the vehicle body is detected by the FF12 detection means, the blower nozzle is held.
When the first and second detection means are not detecting, the blower 7
: When the detection means changes to non-detection after the blower nozzle is raised so that fP is detected by the detection means of fjSl while controlling the blower nozzle to lower the This problem was solved by controlling the blower nozzle to prevent it from descending only while moving a certain distance aZ.

11z1, in the following embodiment, the detection means for f51 corresponds to the photoelectric switches 16a and 16b, and the second detection means corresponds to the photoelectric switches 17a and 17b, respectively.

[Example 1 Examples thereof will be described below based on the drawings.

FIG. 1 is a front view of an embodiment of the present invention, showing a so-called gate-type car wash machine. Washi 18! The main body 1 travels back and forth on the rails 2, 2, and moves as if straddling a car stopped between the rails 2, 2. Inside the car wash machine body 1, there are cleaning brushes 3, 3, 3, blowers 4, 4, and blower nozzles 5, 6, 6.
and a cleaning water injection nozzle (not shown), etc., and as the washing 'TLffi main body 1 runs, cleaning by brushing which generates a cleaning water jet, and drying by blowing air from the blower nozzle by operating a blower, are performed sequentially. Let's do it.

Among these, the drying work is performed as the final step as the main body 1 of the regular method 11 goes back, and the main body 1 performs drying while going back, returns to the standby position at the start of the car wash, and finishes the car wash. Reference numeral 7 denotes a running motor that drives wheels 8 and causes the car wash machine main body 1 to run back and forth.

Among the blower nozzles, the blower nozzle 5 is configured to move up and down following the shape of the upper surface of the vehicle body. This will be explained using diagram jS2 and diagram f53.

The blower nozzle 5 has arms 9 extending on both sides and carriers 10 provided at the ends thereof.
0 and 10, it engages with rails 11 and 11 formed on both sides of the front of the car wash main body 1, and guides the upward and downward movement of the blower nozzle 5. Further, the blower nozzle 5 is cleaned by chains 12, 12 in its carriers 10, 10.
-a This chain 12 is suspended from the top of main body 1.
12 and a sprocket 13, the air cylinder 14 is operated to move up and down. Reference numerals 15, 15, and 15 are sprockets for guiding the chain 10.

Reference numerals 16a, 16b and 17a-17b are photoelectric switches that operate by using lights, and are fixed to the carriers 10 and 10 of 1γI, and receive optical signals X-Y output from constant light emitters 16a and 17a, respectively. Vessel 16b -
Received on 17b, Koshin 6. When X and Y are blocked, a detection signal is output. That is, the relative position of the blower nozzle 5 and the intermediate stop is detected depending on whether or not the optical signal "rfX-Y" is blocked by the automobile qt body.

The charging switches 16a and 16b are located below the blower outlet 5a of the blower nozzle 5, and inside the washing LP-1fi main body 1 from the blower nozzle 5a, that is, when the main body 1 goes back and performs the drying process, the blower 7z 5 is located on the front side in the direction of action.

The charging switches 17a and 17b are photoelectric switches 16a and 17b.
It is located further below the blower nozzle 16b, and is located outside the main body 1 than the blower 5a, that is, on the rear side in the operating direction of the blower nozzle 5 during the drying process.

Figure f54 is an explanatory diagram showing the control system of the embodiment centering on the air cylinder 14. The air cylinder 14 consists of a double-acting air cylinder equipped with two ports 20 and 21, and receives air supply to the first bow 20, and then the piston rod 22.
, and energizes the blower nozzle 5 to rise.
The piston rod 22 receives air supply to the port 21 of IS2.
is pushed out and the blower nozzle 5 is energized to descend.

24 is a magnetic valve on three sides that switches between air supply and large A release to the first port 20, and 25 is a magnetic valve that switches between air supply and large 9 (fMI release) for the same F52 boat 21. It is a three-way solenoid valve, and normally the valve 24 is set to the air supply side and the valve 25 is set to the atmosphere open side, and the blower nozzle 5 is held at the upper standby position.

What about 26? 27 is a second pressure regulator that sets the supply pressure to the second boat 21 to a predetermined value P2.

Supply pressure P1 and P2 set by these pressure regulators 26 and 27
has the following relationship.

PI > PU > PI-P2 > PD Here, PU is the ml port (ml) with the second boat 21 of the air cylinder 12 open.When the supply pressure to the ml port 20 is gradually increased, the blower nozzle 5 starts to rise. Similarly, PD indicates the maximum pressure at which the blower nozzle 5 begins to descend when the second port 21 is opened and the air pressure inside the first boat 20 is gradually lowered. In other words, if the blower nozzle starts to rise when the air supplied to the PtSi boat is 4 Kg/c+*2, and starts to descend when the air supply drops to 2 Kg/c1, then the PL will exceed 4 Kg/c1, and P2 The difference from PL is 2-4K.

/cff12, it is fine if the settings are within the range of I and s.

As a result, if only the three-way solenoid valve 24 is set to the air supply side, the blower nozzle 5 will rise, and if both the solenoid valves 24 and 25 are set to the air supply side, the blower nozzle will stop moving up and down, and both solenoid valves 24 and 25 will be held at the air supply side. If 25 is set to the atmosphere open side, the blower nozzle can be lowered by its own weight.

Reference numeral 30 denotes a control unit that drives the traveling motor 8 via an inverter 31 to control the traveling of the main body 1 in different directions, and also controls the three directions according to detection signals from the light receivers 16b and 17b of the charging switch. The solenoid valves 24 and 25 are operated to raise and lower the blower nozzle 5 via the air cylinder 14. This control section 30 is equipped with a microcomputer, and provides the operation shown in Fig. f55 during the drying process of the car wash machine 1.

When a car wash is executed and the car wash main body 1 returns after the cleaning process using the brushes 3, 3, and 3 and enters the drying process, first, both of the three-way solenoid valves 11 and I are switched to the open flame side, and the blower nozzle 5 is turned off. (1).

As it descends, the charging switch 16 is located on the front side in the direction of action.
When the optical signal
4 to the air supply side and the three-way solenoid valve 25 to the atmosphere open side to raise the blower nozzle 5, and set the timer TO to count the time for this raising operation (3). Standing there, when the detection state of the receiver 16b is released (4), the three-way solenoid valve? 4 and 25 to the air supply side to hold the blower nozzle 5 at a constant position,
Set timer TI to count the time from the start of this holding operation (5).

Furthermore, if the timer time Tυ (approximately 1 second) elapses without the detection state of the receiver 16b being resolved in step (4), (6
), the output frequency of the inverter 31 is lowered to reduce the output frequency of the motor 8.
is decelerated, and the main body 1 is made to run at a low speed for a certain period of time (40 to 60c - traveling time) (7).

The holding operation in step (5) is performed by the photoelectric switch 16
・Both No. 17 do not change to the detection state, only the timer time TH! 1! When it continues (12), step (1) is executed and the blower nozzle 5 is lowered. Note that this timer time Tl has a relationship such that TH>TI with respect to the time TI required for the car wash main body 1 to travel the distance L from the photoelectric switch 16 to the charging switch 17 (see FIG. 3).

On the other hand, when step (1) is lowered, f′ is the photoelectric switch 1.
The optical signal 6-y of 7a-17b is blocked by the r1 moving vehicle, and when this is detected by the receiver W17b (8), the three-way solenoid valve 24.
25 to the air supply side to hold the blower nozzle 5 at a constant position (9). After this, when the detection state of the charging switches 17a and 17b is released (10
), the step (1) is executed again, and the blower nozzle 5 is lowered.

Inui vi! When the operation is performed and the wash tWll returns to the position at the start of the car wash and the end of the operation is detected (11),
Switch the three-way solenoid valve 24 to the air supply side and the three-way solenoid valve 25 to the open side to raise the blower/Z-nil 5 (13).
, completes the series of operations.

Figure 0's6 shows the operation of the blower nozzle 5 accompanying these control operations. You can effectively dry the car body surface by moving it up and down.

If the surface facing the blower nozzle 5 action nozzle, such as a rear window, is relatively steeply sloped, the charging switches 16a and 16b will detect this surface and quickly raise the blower nozzle 5. At the same time, when this upward movement continues for a certain period of time Ttl (approximately 1 second) or more, the blower nozzle is run at a low speed that is sufficient to follow the steep slope for a certain period of time, and the blower 7 nozzle 5 comes into contact with the 171 body. prevent.

In addition, a photoelectric switch 16a is installed on the rise of the blower nozzle 5.
- Even if 16b is in a non-detection state, the blower nozzle 5 is held at a constant position without descending for a certain period of time Tl+, minimizing the movement of the blower nozzle 5 up and down to the necessary minimum.

On the other hand, if there is a surface inclined in the opposite direction, such as a front window, this surface is detected by the charging switches 17a and 1.7b, and the blower nozzle 5 is held at a constant height and operated to prevent the blower nozzle 5 from coming into contact with the vehicle body surface. 5 In addition, when the surface is relatively flat such as a bonnet or roof, the photoelectric switches 17a and 17b first detect this surface and hold the blower nozzle 5 at a constant height, and when the blower nozzle 5 approaches the surface further, the charging switch is activated. 16a and 16b, the blower nozzle 5 is raised, and the blower nozzle 5 is operated to always act within a predetermined range near the vehicle body surface.

In the above embodiment, it is programmed to run at low speed for a predetermined time in step (7) of the F55 figure, but the detection state of the photoelectric switch 16b is canceled in step (4) without determining the time for low-speed travel. The vehicle may be controlled to return to normal running at the point when the vehicle is stopped.

Fig. fjS7 is a flowchart showing an operation example other than the above, and the difference from Fig. 5 is that when it is detected in step (6) that the blower nozzle continues to rise for a certain period, the main body I
It is at the point where the main body 1 stops running and restarts running of the main body 1 after it becomes non-detected in step (4) (step (8)).

In this case, the driving motor 8 is controlled in two stages of 0N10FF, the inverter 31 can be omitted, and a cheaper device can be obtained.

In addition, although the above embodiment is an example in which the present invention is applied to a so-called gate-type car wash machine, it is also possible to implement the present invention in a type of washing Jttfi in which cars are run on a trolley or conveyor, etc. In this case, the blower nozzle When the rise continues for more than a predetermined value, the vehicle may be controlled to slow down or stop running.

[Effects of the Invention] The present invention is configured as described above, and when the blower nozzle continues to rise for a predetermined period or more in a car having a steeply inclined shaft directly facing the blower nozzle, the car wash or 11
By controlling the running of the moving vehicle to slow down or stop +)-, drying work can be safely performed without bringing the blower nozzle into contact with the vehicle body.

Furthermore, it becomes possible to operate the blower nozzle at a higher speed than ever before on vehicles other than those having the above-mentioned exceptional shape.

Furthermore, after the blower nozzle has risen, it is controlled to remain in a fixed position for a predetermined period of time without immediately turning downward, so that the downward movement of the blower nozzle is not repeated in small increments, and is always stable. Effective drying can be performed under these conditions. In addition, even if there is a protrusion such as a taxi indicator light or mirror on the JJ unit, it will remain in the avoidance position for a certain period of time after rising and avoiding it, so there is no danger of avoiding it safely and coming into contact with the protrusion. do not have.

[Brief explanation of drawings]

Fig. 1 is a front view showing an example of a car wash machine according to the present invention. FIG. 2 is a side view of essential parts of an embodiment of the present invention. Figure fjS3 is a front view of the main parts of the same embodiment. ? The tSA diagram is a control circuit diagram of the same embodiment. Figure ff55 is a flow chart diagram 1 showing the operation of the same embodiment.
゜Figure 16 is an explanatory diagram of the operation of the same embodiment. FIG. 7 is a flowchart showing the operation of another embodiment. 1 is the car wash machine body, 5 is the blower nozzle, 5a is the same outlet,
14 is an air shilling which is a lifting stage, 16a, 16b and 17a, 17b 1. t, a photoelectric switch serving as a means for detecting 11 bodies. Reference numeral 30 denotes a control section which is a control means. Figure 2!2I Figure 3 Figure 4

Claims (3)

[Claims] (1) A car wash machine of the type that washes and dries a car as the car wash machine itself or the car runs, comprising: a drying blower nozzle that blows air onto the upper surface of the car body; a means for raising and lowering the blower nozzle; and the blower nozzle. A vehicle body comprising means for integrally raising and lowering to detect the vehicle body, and means for operating the raising and lowering means based on a signal from the vehicle body detection means to control the blower nozzle to act on the vehicle body surface without contacting the vehicle body surface. In the top surface drying device, the control means controls, when the upward movement of the blower nozzle based on the detection signal from the vehicle body detection means continues for a predetermined period or more,
A vehicle body upper surface drying device in a car wash machine, characterized in that the vehicle body top surface drying device in a car wash machine is controlled to reduce the running speed of the car wash machine main body or the automobile only for a predetermined period. (2) A car wash machine of a type that washes and dries a car as the car wash machine itself or the car runs, comprising a drying blower nozzle that blows air onto the upper surface of the car body, means for raising and lowering the blower nozzle, and the blower nozzle. A vehicle body comprising means for integrally raising and lowering to detect the vehicle body, and means for operating the raising and lowering means based on a signal from the vehicle body detection means to control the blower nozzle to act on the vehicle body surface without contacting the vehicle body surface. In the top surface drying device, the control means controls, when the upward movement of the blower nozzle based on the detection signal from the vehicle body detection means continues for a predetermined period or more,
A car body upper surface drying device in a car wash machine, characterized in that the machine body or the car stops running and is controlled to resume running after a car body detection means changes to non-detection. (3) A car wash machine of the type that washes and dries the car as the car wash machine itself or the car runs, comprising a drying blower nozzle that blows air onto the upper surface of the car body, means for raising and lowering the blower nozzle, and the blower nozzle. A vehicle body comprising means for integrally raising and lowering to detect the vehicle body, and means for operating the raising and lowering means based on a signal from the vehicle body detection means to control the blower nozzle to act on the vehicle body surface without contacting the vehicle body surface. In the top surface drying device, the vehicle body detection means includes a first detection means whose detection position is set on the front side in the operating direction of the blower outlet of the blower nozzle, and a second detection means whose detection position is set on the rear side of the first detection means. The control means is configured to raise the blower nozzle when the first detection means detects the vehicle body, hold the blower nozzle when the second detection means detects the vehicle body, and raise the blower nozzle when the second detection means detects the vehicle body. When the first and second detection means do not detect, the blower nozzle is controlled to be lowered, and when the first detection means changes to non-detection after the blower nozzle is raised due to the detection of the vehicle body, the first detection means changes to non-detection. A car body upper surface drying device in a car wash machine, characterized in that the blower nozzle is controlled to prevent the blower nozzle from descending only while the car wash main body or the car travels for a certain period of time or a certain distance.