JPH0761787B2 - Control device for lifting and lowering upper surface drying nozzle in vehicle body cleaning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Field of Industrial Application The present invention relates to a lifting operation control device for controlling the lifting operation of an upper surface drying nozzle in a vehicle body cleaning device.

(2) Conventional Technology Conventionally, in a vehicle body cleaning device for a vehicle, an upper surface drying nozzle is used to perform a drying process on the vehicle body upper surface of the vehicle. The upper surface drying nozzle is moved up and down so as to follow the shape of the upper surface of the vehicle body.

As a lifting / lowering operation device for the upper surface drying nozzle in the vehicle body cleaning device of the vehicle, the one described in Japanese Utility Model Publication No. 57-12382 is known. The lifting and lowering operation device of the upper surface drying nozzle in the vehicle body cleaning device of the vehicle contacts the stylus and the flexible guide roller to the upper surface of the vehicle body of the vehicle to keep a constant gap between the upper surface drying nozzle and the upper surface of the vehicle body.

(3) Problems to be Solved by the Invention However, in the case where the stylus and the flexible guide roller are used, they contact the upper surface of the vehicle body of the vehicle, and thus there is a problem that the vehicle body may be damaged. there were. There is also a problem that the locus of the flexibility guide roller remains on the upper surface of the vehicle body of the vehicle.

Therefore, in order to solve such a problem, for example, JP-A-62-1202
As disclosed in Japanese Patent Publication No. 50, a contactless sensor arranged below the upper surface drying nozzle so as to move up and down integrally with the upper surface drying nozzle detects the shape of the upper surface of the vehicle body and controls the upper surface drying nozzle up and down based on the detection signal. However, in this proposal, the shape detection of the upper surface of the vehicle body by the above-mentioned sensor and the raising and lowering of the upper surface drying nozzle that should respond only to this are performed in parallel. If there is a sudden change in the angle of the upper surface drying nozzle, the vertical movement of the upper surface drying nozzle cannot be quickly and accurately responded to, and there is a risk that the nozzle may contact the upper surface of the vehicle body. When cleaning a vehicle that has a protrusion such as a spoiler that overhangs in the front-rear direction at the upper end of the inclined surface of the upper surface, the upper surface drying nozzle may hit the protrusion to damage or damage the vehicle. There is Rukoto. If the upper surface drying nozzle and the upper surface of the vehicle body are separated from each other in the vertical direction more than necessary in order to avoid such a problem, there is another problem such that the drying effect of the nozzle is lowered.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lifting operation control device for an upper surface drying nozzle in a vehicle body cleaning device for a vehicle, which can solve all the problems of the conventional device.

B. Structure of the Invention (1) Means for Solving the Problems According to the first invention in order to achieve the above object, according to the first invention, an upper surface drying nozzle and a frame for supporting a driving means capable of vertically moving the same, and A traveling drive device for moving the frame and the vehicle relative to each other in the front-rear direction, and controlling the drive means during the relative movement of the frame and the vehicle so that the upper surface drying nozzle has the shape of the vehicle body upper surface. In an elevation operation control device for an upper surface drying nozzle in a vehicle body cleaning device of a vehicle, which can be moved up and down so as to follow the relative position detection means for detecting a relative position between the frame and the vehicle, and an upper surface position of the vehicle. An upper surface position detecting means for detecting without contacting the upper surface, an ascending / descending position detecting means for detecting an ascending / descending position of the upper surface drying nozzle; And a control means for controlling the drive means so that the locus of the upper surface drying nozzle is separated from the vehicle body upper surface by at least a predetermined amount in the vehicle body front-rear direction when the vehicle is moved up and down along the vehicle body upper surface shape. The control means sets an elevation position corresponding to the relative position of the upper surface drying nozzle based on each detection position of the relative position detection means and the upper surface position detection means, and the set elevation position and the elevation position. The drive means is controlled based on the detection position of the detection means, and when the upper surface drying nozzle is raised along the upper surface of the vehicle body, the frame is relative to the vehicle by a predetermined distance from the actual position of the upper surface drying nozzle. It is characterized in that it is configured to use a set up / down position set on the basis of the upper surface position corresponding to the relative position shifted to the front side in the moving direction, and according to the second invention. For example, an upper surface drying nozzle and a frame that supports a driving unit that can drive the same upward and downward, and a traveling drive device that relatively moves the frame and the vehicle in the front-rear direction are provided. In a movement control device for an upper surface drying nozzle in a vehicle body cleaning device of a vehicle, the upper surface drying nozzle can be moved up and down while moving to control the upper surface drying nozzle so as to follow the shape of the vehicle body upper surface of the vehicle,
Relative position detection means for detecting the relative position between the frame and the vehicle, upper surface position detection means for detecting the upper surface position of the vehicle without making contact with the upper surface, and vertical position detection for detecting the vertical position of the upper surface drying nozzle. Means and the upper surface drying nozzle moves up and down along the upper surface of the vehicle body of the vehicle in accordance with the relative movement, and when the upper surface drying nozzle descends, the locus of the upper surface drying nozzle is separated from the vehicle body upper surface by at least a predetermined amount in the vehicle longitudinal direction. And a control means for controlling the drive means,
This control means, of the upper surface drying nozzle based on each detection position of the relative position detection means and the upper surface position detection means,
An elevating position corresponding to the relative position is set, the driving unit is controlled based on the set elevating position and the detected position of the elevating position detecting unit, and the upper surface drying nozzle is moved down along the upper surface of the vehicle body. In this case, the set elevating position set based on the upper surface position corresponding to the relative position shifted to the rear side in the relative movement direction of the frame with respect to the vehicle by a predetermined distance from the actual position of the upper surface drying nozzle is configured. It is characterized by that.

(2) Operation According to the above configuration, the control means controls the nozzle elevating and lowering drive means on the basis of the detection position of each of the detection means, so that the shape of the vehicle body upper surface can be obtained without mechanically contacting the detection means with the vehicle body upper surface. The upper surface drying nozzle can be easily followed.

Further, in particular, before actually performing a drying process on the upper surface of the vehicle body using the upper surface drying nozzle, the shape of the upper surface of the vehicle body is detected in advance based on the respective detection positions of the relative position detecting means and the upper surface position detecting means, and the detected vehicle body is detected. Since the ascending / descending position of the nozzle can be set so that the ascending locus of the upper surface drying nozzle (the descending locus in the second invention) is separated from the upper surface in the vehicle front-rear direction by at least a predetermined amount, the inclination angle of the upper surface of the vehicle body changes rapidly. Even in such a case, the upper surface drying nozzle can be controlled to move up and down by appropriately responding to the change, that is, when the windshield surface of the vehicle body stands up substantially vertically or the upper end portion of the inclined windshield surface. Even when there is a spoiler or other protrusion that overhangs longer in the vehicle front-rear direction, the upper and lower drying nozzle setting
Since the nozzle can be set at an appropriate position where it does not come into contact with the ascending or descending inclined surface of the wind glass surface or the protrusion, the contact is surely avoided.

Further, since the information such as the top surface position of the car to be washed is detected directly from the actual vehicle at the time of car wash, the above information about various car types is recorded and stored in a recording medium such as a magnetic card before the car wash. There is no need to leave it.

(3) Embodiment One embodiment of the present invention will be described below with reference to the drawings. 1 to 5 are views showing the constitution of an embodiment of the present invention, wherein FIG. 1 is a front view, FIG. 2 is a side view of essential parts, and FIG. 3 is a diagram showing a constitution of a stop device. FIG. 4 is a diagram showing an air and hydraulic circuit, and FIG. 5 is a block diagram of a control system.

1 and 2, the traveling frame 1 has traveling rails 7,7
The wheels 8 and 8 are pivotally supported so that they can travel back and forth. Blowers 9 and 9 are provided on both upper sides of the traveling frame 1, respectively. The upper surface drying nozzle 2 is connected to the tips of the blower pipes 10 connected to the discharge ports of the blowers 9.

Support rods 11, 11 are provided at both left and right ends of the upper surface drying nozzle 2. Elevating members 12, 13 are fixed to the tips of the supporting rods 11, 11. The elevating members 12, 13 are provided with guide members 3, 14 provided on both side surfaces of the traveling frame 1 by means of guide rollers 15, 14 pivotally supported on the upper part and guide rollers 15, 15 pivotally supported on the lower part. Engaged with 3. Also,
An operating member 17 for operating the upper limit switch 16 for detecting the upper limit position of the upper surface drying nozzle 2 is provided at the upper end of the one elevating member 12. The upper limit switch 16 and the operating member 17 constitute an upper limit position detecting means D ₆ .

One ends of the cords 18, 18 are fixed to the central portion of the upper end of the upper surface drying nozzle. The ropes 18, 18 are hung down after passing through the guide pulleys 19, 19, 20, 20 pivotally supported on the traveling frame 1 to suspend the movable pulleys 21, 21, and the other ends are fixed to the traveling frame 1. There is. The movable pulleys 21, 21 are movable pulley frames 22.
The movable pulley frame 22 has its lower end fixed to the upper end of a piston rod 5 of a cylinder 4 serving as a driving means whose axis is supported by the traveling frame. In addition, the movable pulley frame 22
A stopper 23 which determines the upper limit position of the traveling frame 1 is provided on the traveling frame 1. At the upper end of the cylinder 4, a stop device 6 described later for stopping the piston rod 5 is provided.

The guide pulleys 20 and 20 are coaxially provided with a disk 24 made of a magnetic material and provided with a plurality of convex projections at equal intervals on the outer periphery. Further, a proximity switch 25 including a sensor coil and the like is provided so as to face the outer peripheral portion of the disk 24. The disk 24 and the proximity switch 25 constitute an up-and-down pulse generating means D ₃ .

Driven sprockets 26, 26 are coaxially provided on the wheels 8, 8, and drive sprockets 28, 28 are provided on the drive shafts of prime movers 27, 27 as traveling drive devices. The sprocket 26, 26 and the drive sprocket 28, 28 have a chain 2
9,29 are suspended. The drive shaft of one of the prime movers 27 is provided with a disc 30 similar to the disc 24, and a proximity switch 31 similar to the proximity switch 25 is provided facing the outer peripheral portion thereof. The disc 30 and the proximity switch 31 constitute a traveling pulse generating means D ₁ .

A limit switch is provided in the lower center of the traveling frame 1.
32 are provided. The limit switch 32 is operated by a cam 33 provided on one traveling rail 7 when the traveling frame 1 is at the start position of the traveling rails 7, 7. The limit switch 32 and the cam 33 constitute a start position detecting means D ₅ . Also, the traveling frame 1
The photoelectric switch group K composed of a plurality of photoelectric switches K _{1 to} K ₁₅ provided in the vertical direction is provided on one side surface facing the vehicle, and the other side surface corresponds to each photoelectric switch K _{1 to} K ₁₅ . Each of the projectors La is provided with a plurality of light sources. The photoelectric switch group K and the projector La form a vehicle detection means D ₂ . In addition, the traveling frame 1 is provided with side surface drying nozzles 34, 34, and cleaning processing devices such as an upper surface brush and a side surface brush which are not shown.

FIG. 3 shows a specific structure of the stop device 6 shown in FIGS. A ring-shaped brake shoe 35 is wound around the outer periphery of the piston rod 5 of the cylinder 4. Stop device 6
Cylindrical casing 6 ₁ is disposed so as to surround the piston rod 5 including the brake shoe 35. The casing 6 _1, there together with the brake piston 39 that defines an air chamber 6 ₂ is slidably fitted, so as to reduce the air chamber 6 ₂ volume by pressing the piston 39 A working brake spring 38 is accommodated. The air chamber 6
₂ is connected to the pressurized air source Ai (FIG. 4) via the supply port 41. The air chamber 6 within ₂ Further, a plurality of brake arm 36 is accommodated radially so as to surround the piston rod 5, the proximal end of their brake arm 36 (the upper end) of the inner surface of the brake shoe 35 and the casing 6 ₁ Is rotatably supported in the radial direction of the piston rod 5, and a roller 37 is rotatably supported at the tip (lower end) of the piston rod 5, and the outer surface of the roller 37 is supported by the brake spring 38. The tapered surface 40 of the brake piston 39, which is biased upward, is in pressure contact. Thus, when pressurized air is not supplied to the air chamber 6 in ₁ brake piston 39 is raised by the resilient force of the brake spring 38, swinging the brake arm 36 inwardly thereof tapered surface 40 through the rollers 37 As a result, the brake shoe 35 is pressed against the pushstone rod 5, and the piston rod 5 is braked. Also, the when the pressurized air from the pressurized air source Ai to the air chamber 6 ₂ is supplied brake piston
39 is pushed downward against the urging force of the brake spring 38, and the roller 37 moves outward. Therefore, the brake arm
Since 36 does not press the brake shoe 35 against the piston rod 5, the piston rod 5 operates freely.

FIG. 4 is a diagram showing an air and hydraulic circuit. The pipe 42 connected to the pressurized air source Ai is a pressure reducing valve 43 for adjusting the pressure.
And an air supply port 41 of the stop device 6 via a normally open three-way solenoid valve 44. The pipe 42 is also connected to the upper portion of the pressurizing container 47 via a pressure reducing valve 45 and a normally open three-way solenoid valve 46. Then, the hydraulic oil contained in the pressure vessel 47 is supplied to the cylinder 4 via the check valve 48 with a fixed throttle. The check valve 48 with a fixed throttle is opened when the cylinder 4 contracts and closed when the cylinder 4 extends.

FIG. 5 is a block diagram of a control system when a microcomputer is used as the control means. The control means 50 includes a microprocessing unit 51 for performing arithmetic processing, a read-only memory M ₁ for storing programs and fixed data, a random access memory M ₂ for storing work areas and variable data, and an input interface. 52, an output interface 53, and a bus 54 connecting them. In the input interface 52, the traveling pulse generating means D ₁ , the vehicle detecting means D ₂ , the lifting pulse generating means D ₃ , the reciprocating signal generating means D ₄ , the upper limit detecting means D ₅ , and the start position detecting means D _{6 are provided.}
The output signal of is input. The output interface 53 is connected to the solenoid coils L ₄₄ and L ₄₆ of the solenoid valves 44 and 46 shown in FIG. In addition, the bus 54,
Storage means M consisting of a random access memory is also connected.

Next, the operation of the embodiment of the present invention having the above configuration will be described.

FIG. 6 is a diagram showing a vehicle height measurement by detecting a vehicle when the traveling frame 1 is moving forward, FIG. 7 is a flowchart showing an operation of the control means 50 in that case, and FIG. 8 is a traveling frame 1
And FIG. 9 is a flowchart showing the operation of the control means 50 in that case.

In FIG. 6, first, when the reciprocating signal generating means D ₄ outputs a signal indicating going, the prime movers 27, 27 are operated,
The traveling frame 1 travels along the traveling rails 7, 7 to the right in the drawing from position 1a to position 1b.

At this time, the start position detecting means D ₅ does not output a signal because the cam 33 does not operate the limit switch 32 except at the position 1a. The traveling pulse generating means D ₁ is
Since the circular plate 30 rotates and activates the proximity switch 31, a traveling pulse signal is output. Further, the vehicle detection means D ₂ is
Light Emitter La is blocked by the body of the vehicle, among the plurality of photoelectric switch K ₁ ~K ₁₅ constituting the sensor group systems, a position corresponding photoelectric switch K ₁ provided at the bottom on the body top surface of the vehicle Since a signal up to the provided photoelectric switch can be obtained, a signal corresponding to the vehicle height is output. For example, in FIG. 6, the traveling frame 1 travels the distance L ₁ at the position 1c.
, The signals of the photoelectric switches K _{1 to} K ₅ are obtained.

At this time, the control means 50 operates based on the flowchart of FIG. When the reciprocating signal generating means D ₄ outputs a signal indicating the going, it is determined in step S ₁ whether or not the vehicle height is measured. Then, the process proceeds to step S _3, if the vehicle height measurement, performs other processing proceeds to step S ₂ otherwise. Step
In S _3, it determines the presence or absence of an output signal of the start-position detecting means D _5. If there is no output signal, the process proceeds to step S ₄ . If the output signal Yes, the traveling frame 1 is the forward stroke, it repeats step S ₃ before proceeding to the right from the position 1a in Figure 6.
In step S ₄ , the traveling pulse signal is input, and is incremented by 1 each time the pulse signal is input to obtain the traveling pulse number A. In step S ₅ , the output signal of the vehicle detection means D ₂ is input. The value of each bit of this output signal is the photoelectric switch K _{1 to} K ₁₅
This is a 15-bit signal corresponding to the presence or absence of the output signal of. In step S ₆ , the vehicle detection means D ₂ is stored in the address A of the storage means M.
The output signal of is stored as data. In step S ₇ ,
It is determined whether or not the reciprocating signal generating means D ₄ outputs a signal indicating the going. If there is a signal, the process returns to step S ₄ , and if there is no signal, the process ends.

Therefore, the storage means M stores the position of the vehicle body upper surface,
That is, the data H corresponding to the vehicle height is continuously stored.

In FIG. 8, when the reciprocating signal generating means D ₄ outputs a signal indicating a backward travel, the traveling frame 1 travels leftward in the drawing from position 1b to position 1a. Then, the upper surface drying nozzle 2 is moved up and down to perform the drying process.

At this time, the lifting pulse generating means D ₃ outputs the lifting pulse signal because the disk 24 rotates and activates the proximity switch 25. Further, the upper limit detecting means D ₆ does not output a signal because the operating member 17 does not activate the upper limit switch 16 when the upper surface drying nozzle 2 starts descending.

At this time, the control means 50 operates based on the flowchart of FIG. When the reciprocating signal generating means D ₄ outputs the signal indicating the backward movement, it is determined in step S ₈ whether or not the drying process is being performed. Then, if it is a drying process, the process proceeds to step S ₁₀ , and if not, the process proceeds to step S ₉ to perform another process. Step
Enter the running pulse signal S _10, 1 pulse signal from the running pulse count A at the forward stroke is decremented by 1 for each input to the running number of pulses B. In step S _11, performs operations described with respect to the traveling pulse number, below. In FIG. 8, when the traveling frame 1 travels backward from the position 1b, reaches the position 1d, and the distance from the start position 1a becomes L ₂ , the traveling pulse number B travels when traveling the distance L _2. It becomes equal to the pulse number A. There is a distance Lo between the vehicle detection means D ₂ and the upper surface drying nozzle 2. Further, since the ascending speed of the upper surface drying nozzle 2 is finite, in order to prevent it from coming into contact with the vehicle body of the vehicle, it is necessary to consider the distance Lu that the traveling frame 1 moves during the time required for the ascending. Therefore, in order to lift actuating the upper surface drying nozzle 2, rather than the actual distance L ₂ of the traveling frame 1, the distance L ₂
It needs to be based on the vehicle height at distance L ₃ , which is obtained by subtracting distance Lo and distance Lu from. Therefore, the traveling pulse number B
Then, the number of traveling pulses corresponding to the distance Lo and the distance Lu is subtracted, and an operation for obtaining the number of traveling pulses X is performed. Next, in step S _12, reads the stored content of the address X of the storage means M. This stored content is data H corresponding to the vehicle height at the position of the number X of driving pulses. Enter the lifting pulse signal in step S _13, if the not output signals are input upper limit detecting means D _6, if the upper surface drying nozzle 2 descends adds by one for each pulse signal, when the ascending one The number S of elevation pulses is obtained by subtraction. In step S _14, is determined by the data read out in step S _12, the lifting pulse number Sn which correspond to the interval suitable for the drying process to compare the lifting pulse number S. The lift pulse number Sn is a value that is uniquely determined by the vehicle height, and is stored in advance in association with the data H corresponding to the vehicle height. Therefore, from the data H read in step S ₁₂ , the number of up / down pulses S
n is set. As a result of the comparison, if S> Sn, the process proceeds to step S ₁₅ , if S <Sn, the process proceeds to step S ₁₆ , and if S = Sn, the process proceeds to step S ₁₇ . In step S _15, the solenoid valve 46, since the current flowing through the solenoid coil L ₄₆ is turned off, the non-excited. Therefore, since the hydraulic oil is supplied to the cylinder 4, the upper surface drying nozzle 2 moves up. In step S _16, the solenoid valve 46, the solenoid coil L ₄₆
Since the current flows to the cylinder 4, the working oil supplied to the cylinder 4 by the dead weight of the drying nozzle 2 returns to the pressurizing container 47, and the upper surface drying nozzle 2 descends. At this time, the check valve of the check valve with the fixed throttle is closed, so that the hydraulic oil is adjusted by the fixed throttle. Therefore, the upper surface drying nozzle 2
Falls at a slower rate than when it rises.

Further, the step data H corresponding to the vehicle height as described in S _11, since the read those of the prior position than the actual position of the traveling frame 1, the upper surface drying the nozzle 2 even during the descent of the nozzle 2 In order to prevent contact between the upper surface drying nozzle 2 and the outer surface of the vehicle body, in particular, the upper surface drying nozzle 2 is lowered after the number of traveling pulses corresponding to the distance L _D shown in FIG. It is executed after the traveling frame 1 has traveled a distance L _D.

It should be noted that until the number of the running pulse is inputted corresponding to the distance L _D, if the process proceeds to step S _15, only the rise without lowering is performed. In step S ₁₇ , the solenoid valve 44 is
Since a current flows through the solenoid coil L ₄₄ , it is excited. Therefore, the stop device 6 operates and the piston rod 5
Is stopped, the upper surface drying nozzle 2 is kept at a constant height. These steps S ₁₅ to S ₁₇ are repeated in step S ₁₈ until the output signal Yes of the start-position detecting means D _5.

Therefore, in FIG. 8, the traveling frame 1 is located at the position 1b.
When reaching the position 1d from, the upper surface drying nozzle 2 starts to rise from the height H ₁ . Then, it reaches the height H ₆ through the heights H _{2 to} H ₅ . When the position 1e is reached, the descent is instructed, but the descent actually starts after the distance L _D is further advanced. When returning to the start position 1a, the start position detecting means D ₅ outputs a signal, the traveling frame 1 stops, and the upper surface drying nozzle 2 returns to the upper limit position.

In the above embodiment, the traveling pulse generating means D ₁ is
The relative position detecting means of the present invention for detecting the relative position between the traveling frame 1 as the frame and the vehicle, and the vehicle detecting means D ₂ of the present invention for detecting the upper surface position of the vehicle without contacting the upper surface thereof. The upper surface position detecting means, and further the elevating pulse generating means D ₃ respectively constitute the elevating position detecting means of the present invention for detecting the elevating position of the upper surface drying nozzle 2.

Then, as is apparent from the operation of the above-described embodiment, the control means 50 corresponds to the relative position of the upper surface drying nozzle 2 based on the detection positions of the relative position detection means D ₁ and the upper surface position detection means D ₂ . A lifting position (corresponding to the lifting pulse number Sn) is set, and the upper surface drying nozzle 2 of the vehicle is set based on the set lifting position Sn and the detection position of the lifting position detecting means D ₃ (corresponding to the lifting pulse number S). Controlling the driving means (cylinder 4) so that the locus of the upper surface drying nozzle is separated from the upper surface of the vehicle body by at least a predetermined amount in the front-rear direction of the vehicle body when moving up and down along the shape of the upper surface of the vehicle body and when ascending and descending. You can

Moreover, the control means 50, is subtracted by a predetermined distance Lo and Lu from the actual driving pulse number B during a calculation for obtaining a running pulse number X at the action of the embodiment (step S ₁₁₎ As is apparent from the above, when raising the upper surface drying nozzle 2 along the upper surface of the vehicle body, a predetermined distance (corresponding to Lo + L _U ) from the detection position of the relative position detecting means D ₁ (corresponding to the traveling pulse number B). ) Is set up / down position (equivalent to the number of up / down pulses Sn) set based on the upper surface position (equivalent to data H) corresponding to the relative position (equivalent to B-Lo-L _U ) displaced in one front direction (forward direction). ) Is used.

In particular, when lowering the upper surface drying nozzle 2 along the upper surface of the vehicle body, the lowering operation is performed after the traveling frame 1 has traveled the distance L _D after the lowering instruction.
As is apparent from this point, when lowering the upper surface drying nozzle 2 along the upper surface of the vehicle body, a predetermined distance (Lo + L _U ) from the detection position (corresponding to the traveling pulse number B) of the relative position detection means D ₁ is obtained. -L _D ) corresponding to the relative position (corresponding to B-Lo-L _U + L _D ) shifted in the front-rear direction (corresponding to B-Lo-L _U + L _D ). It corresponds to the number of lifting pulses Sn). More specifically explaining this point, in FIG. 8, when the traveling frame 1 reaches the position 1e, the lowering of the upper surface drying nozzle 2 is instructed, which means that the upper surface position detecting means D ₂ at this time point is instructed. Setting reference position X obtained by subtracting (Lo + L _U ) from the actual position Xe when the actual position is Xe
This means that the elevating position Sn set based on the upper surface position H detected by the upper surface position detecting means D ₂ is instructed to descend the nozzle 2 by e ′ (that is, the process until the “instruction” is issued). Is similar to the case of rising).

However, when raising the upper surface drying nozzle 2, the raising operation is started immediately when the instruction is given, whereas when lowering the nozzle 2, even if the instruction is given, the traveling frame 1 is moved by the distance. L _{D The} nozzle lowering operation will not start unless it goes back. Therefore, FIG. 8A specifically shows the positions of the upper surface drying nozzle 2 and the like when the traveling frame 1 goes back by the distance L _D after the instruction to descend and the descending start is started. In FIG. 8A, the upper surface position detecting means D ₂ at the start of descent
Position of reality, the upper surface position detection unit D ₂ of the falling instruction timing
Since the position Xf is obtained by subtracting the distance L _D from the actual position Xe, the deviation in the front-rear direction between this position Xf and the above-mentioned setting reference position Xe ′ is the actual setting at the time when the set reference position Xe ′ and the descending instruction are given. A constant distance obtained by subtracting the difference L _D between the actual positions Xe and Xf at the both points from the difference (Lo + L _U ) from the position Xe, that is, (L
o + L _U −L _D ). Therefore, the set elevating position Sn used when the drying nozzle 2 descends is substantially the actual traveling detection position B by the relative position detecting means D ₁ (in the upper surface position detecting means D ₂ , at the time of starting descending). Real position Xf)
It is set based on the upper surface position H detected by the upper surface position detecting means D ₂ at the traveling position (the setting reference position Xe 'in the upper surface position detecting means D ₂ ) obtained by subtracting the constant distance (Lo + L _U −L _D ). Will be.

Thus, according to the present invention, as is apparent from FIG. 8, when the upper surface drying nozzle 2 is raised, the traveling frame 1 moves relative to the vehicle by a predetermined distance L _U from the actual position (B-Lo) of the nozzle 2. (That is, in the backward direction) Using the upper surface position H detected by the upper surface position detecting means D ₂ at the position (B-Lo-L _U ) displaced to the front side, the ascending / descending setting position Sn is set, while the eighth position is set. As is clear from FIG. 8 and FIG. 8A, when the upper surface drying nozzle 2 descends, the actual position of the nozzle 2 (BL
top position detecting means at a position (B-Lo-L _U + L _D ) displaced rearward by a predetermined distance (L _D -L _U ) from the vehicle) in the relative movement direction of the traveling frame 1 with respect to the vehicle (that is, in the backward direction). D ₂ is is possible to lift the set position Sn during descent with a top position H detected is set, thus the time of rise in the relative movement direction front side than the nozzle position and than the nozzle position during descent The reason why the upper surface position H detected on the rear side in the relative movement direction is used is to reliably prevent contact between the nozzle 2 and the upper surface of the vehicle body when the nozzle is raised or lowered.

Next, the effect peculiar to the above-described embodiment of the present invention will be described. According to the embodiment of the invention described above, the stop device 6 provided on the cylinder 4 stops the piston rod 5. for that reason,
The upper surface drying nozzle 2 is fixed to the height when the piston rod 5 is stopped. Therefore, the gap between the upper surface drying nozzle and the upper surface of the vehicle body can be maintained at a constant interval suitable for the drying process.

Although the embodiments of the present invention have been described above in detail, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the claims. It is possible.

For example, the vehicle height may be measured by detecting the vehicle when the traveling frame 1 is going forward, and the drying process may be performed while the vehicle height is being measured when going forward, instead of performing the drying process when returning. In this case, in the flowchart of FIG.
In step S ₁₁ , the traveling pulse number A is subtracted from the traveling pulse number A, and the traveling pulse number corresponding to the distance Lu is added to obtain the traveling pulse number X.

Also, the running pulse generating means D ₁ and the lifting pulse generating means
D _3, instead of constituting a proximity switch comprising a convex projection from a plurality disk and the sensor coils provided at equal intervals on the outer peripheral portion can be constituted by a disk-shaped magnet and reed switch, a so-called encoder Anything will do. Further, when the traveling speed of the traveling frame 1 is constant, the traveling pulse generating means D ₁ can be a pulse generator with a constant cycle.

Further, the number of photoelectric switches forming the vehicle detection means D ₂ can be increased or decreased as necessary. In that case, if there is a risk of malfunction due to the proximity of the photoelectric switches, the light sources of the projectors La corresponding to the odd-numbered and even-numbered photoelectric switches are caused to emit light separately, and The output signals of the switches may be combined and used as the output signal of the vehicle detection means D ₂ .

Further, the uppermost photoelectric switch may be used to detect the maximum vehicle height at which the drying process is possible. In that case, all the operations of the vehicle body cleaning device are stopped by the output signal of the photoelectric switch.

Further, the photoelectric switch at the bottom may be used for detecting the position of the vehicle. In that case, the output signal of the photoelectric switch controls the traveling of the traveling frame 1 and the control of the external cleaning process such as water injection. For example, it can be used as a signal for switching the traveling frame 1 from forward to backward.

Further, instead of storing the data H corresponding to the vehicle height which is the output signal of the vehicle detection means D _{2 in} the storage means M and reading the data H during the drying process and converting it into the number of lift pulses Sn,
The data H corresponding to the vehicle height, which is the output signal of the vehicle detection means D ₂ , may be converted into the number of lift pulses Sn and stored in the storage means M. Furthermore, in the storage means M stores the data H which faces the vehicle height, which is the output signal of the vehicle detection unit D _2, drying converts the data H to read elevation pulse number Sn Before starting, stored again and dried In the processing, the stored lift pulse number Sn may be read.

C. Effects of the Invention As described above, according to the present invention, relative position detecting means for detecting the relative position between the frame and the vehicle, and upper surface position detecting means for detecting the upper surface position of the vehicle without making contact with the upper surface thereof. , The upper and lower drive nozzles are controlled so that the upper surface drying nozzle moves up and down along the shape of the upper surface of the vehicle body based on the respective detection positions of the upper and lower position detection means for detecting the vertical position of the upper surface drying nozzle. The upper surface drying nozzle can be made to follow the shape of the upper surface of the vehicle body without mechanically contacting the detection means, and therefore the drying process can be accurately performed without damaging the upper surface of the vehicle body or leaving a trajectory of guide rollers or the like. .

Further, when the upper surface drying nozzle rises (lowers in the second invention) along the outer surface of the vehicle body due to the relative movement of the vehicle and the frame, the vehicle body detected based on the respective detection positions of the relative position detecting means and the upper surface position detecting means. Since the driving means is controlled so that the locus of the upper surface drying nozzle is separated from the upper surface shape by at least a predetermined amount in the front-back direction of the vehicle body, the vehicle body upper surface shape is relative to the upper surface of the vehicle body before actually performing the drying process with the upper surface drying nozzle. It is detected in advance based on the respective detection positions of the position detecting means and the upper surface position detecting means, and the ascending locus (lowering locus in the second invention) of the upper surface drying nozzle is at least a predetermined amount in the longitudinal direction of the vehicle body based on the detected upper surface shape of the vehicle body. The vertical position of the nozzle can be set so that the nozzles are separated from each other, and therefore, even when the inclination angle of the upper surface of the vehicle body suddenly changes, it can accurately respond to the change. Therefore, the upper surface drying nozzle can be controlled to move up and down. Even if there is a protrusion, the set up / down position of the upper surface drying nozzle can be set to an appropriate position where the nozzle does not come into contact with the ascending or descending inclined surface of the window glass surface or the protrusion. Certainly avoided. As a result, regardless of the form of the outer surface of the vehicle body, it is possible to always accurately and accurately control the ascent or descent of the upper surface drying nozzle and the outer surface of the vehicle body while avoiding contact between the nozzles and the outer surface of the vehicle body as much as possible. Therefore, the drying treatment effect can be improved and the outer surface of the vehicle body can be greatly prevented from being damaged or damaged.

Further, since the information such as the top surface position of the car to be washed is detected directly from the actual vehicle at the time of car wash, the above information about various car types is recorded and stored in a recording medium such as a magnetic card before the car wash. There is no need to leave it, it is easy to handle, and there are few mistakes in handling. In addition, it is possible to quickly perform a car wash operation for various vehicle types on the spot.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a side view of essential parts, FIG. 3 is a view showing a configuration of a stop device, FIG. 4 is a view showing air and hydraulic circuits, and FIG. Is a block diagram of the control system, FIG. 6 is a diagram showing vehicle height measurement by vehicle detection when the traveling frame is going forward, FIG. 7 is a flowchart showing operation of the control means in the case of FIG. 6, and FIG. 8 is FIG. 8A is a view similar to FIG. 8 for explaining the state of the drying process at the time of starting the descent of the drying nozzle, and FIG.
It is a flow chart showing operation of control means in the case of a figure. DESCRIPTION OF SYMBOLS 1 ... Running frame as a frame, 2 ... Upper surface drying nozzle, 4 ... Cylinder as a driving means, 27 ... A prime mover as a driving device, 50 ... Control means, B ... Relative between a vehicle and a frame Number of travel pulses corresponding to position, D ₁ ...
... Running pulse generating means as relative position detecting means, D ₂ ...
... vehicle detection means as the upper surface position detecting means, D ₃ ...... lifting pulse generating means as an elevating position detecting means, lifting the number of pulses as Sn ...... set vertical position, M ...... storage means

Claims (4)

[Claims] 1. A frame (1) supporting an upper surface drying nozzle (2) and a driving means (4) capable of vertically moving the nozzle.
The driving means (4) is provided with a traveling drive device (27) for relatively moving the frame (1) and the vehicle in the front-rear direction, and when the frame (1) and the vehicle are relatively moved.
In a vehicle body washing apparatus for a vehicle body washing apparatus, wherein the upper surface drying nozzle (2) can be vertically moved so as to follow the shape of the vehicle body upper surface of the vehicle. ) And a vehicle, a relative position detecting means (D ₁ ) for detecting the relative position between the vehicle and the vehicle, an upper surface position detecting means (D ₂ ) for detecting the upper surface position of the vehicle without making contact with the upper surface, and the upper surface drying nozzle (2 ) and vertical position detecting means for detecting a vertical position of the (D _3), wherein the top drying nozzle with the relative movement (2) moves up and down along the vehicle body upper surface shape of the vehicle and the vehicle body upper surface during its rise And a control means (50) for controlling the drive means (4) so that the locus of the upper surface drying nozzle (2) is separated from the front-rear direction of the vehicle body by at least a predetermined amount.
This control means (50) is an ascending / descending position of the upper surface drying nozzle (2) corresponding to the relative position based on the detection positions of the relative position detecting means (D ₁ ) and the upper surface position detecting means (D ₂ ). (Sn) is set, and the drive means (4) is controlled based on the set ascending / descending position (Sn) and the detected position (S) of the ascending / descending position detecting means (D ₃ ), and the upper surface drying nozzle When (2) is raised along the upper surface of the vehicle body, the front side in the relative movement direction of the frame (1) with respect to the vehicle is moved by a predetermined distance (L _U ) from the actual position (B-Lo) of the upper surface drying nozzle (2). A vehicle body cleaning apparatus for a vehicle, characterized in that it is configured to use a set up / down position (Sn) set based on an upper surface position (H) corresponding to a shifted relative position (B-Lo-L _U ). Control device for lifting and lowering of the upper surface drying nozzle in. 2. The relative position detecting means comprises a traveling pulse generating means (D ₁ ) which outputs a traveling pulse signal in accordance with relative movement between the frame (1) and a vehicle, and the ascending / descending position detecting means comprises: A lift pulse generating means (D ₃ ) for outputting a lift pulse signal as the upper surface drying nozzle (2) moves up and down.
An up-and-down operation control device for an upper surface drying nozzle in a vehicle body cleaning device for a vehicle according to claim 1, characterized in that they are respectively configured. 3. A frame (1) supporting an upper surface drying nozzle (2) and a driving means (4) capable of vertically moving the nozzle.
The driving means (4) is provided with a traveling drive device (27) for relatively moving the frame (1) and the vehicle in the front-rear direction, and when the frame (1) and the vehicle are relatively moved.
In a vehicle body washing apparatus for a vehicle body washing apparatus, wherein the upper surface drying nozzle (2) can be vertically moved so as to follow the shape of the vehicle body upper surface of the vehicle. ) And a vehicle, a relative position detecting means (D ₁ ) for detecting the relative position between the vehicle and the vehicle, an upper surface position detecting means (D ₂ ) for detecting the upper surface position of the vehicle without making contact with the upper surface, and the upper surface drying nozzle (2 ) and vertical position detecting means for detecting a vertical position of the (D _3), wherein the top drying nozzle with the relative movement (2) moves up and down along the vehicle body upper surface shape of the vehicle and the vehicle body upper surface during its descent And a control means (50) for controlling the drive means (4) so that the locus of the upper surface drying nozzle (2) is separated from the front-rear direction of the vehicle body by at least a predetermined amount.
This control means (50) is an ascending / descending position of the upper surface drying nozzle (2) corresponding to the relative position based on the detection positions of the relative position detecting means (D ₁ ) and the upper surface position detecting means (D ₂ ). (Sn) is set, and the drive means (4) is controlled based on the set ascending / descending position (Sn) and the detected position (S) of the ascending / descending position detecting means (D ₃ ), and the upper surface drying nozzle predetermined distance from the actual position (B-Lo) of the (2) in lowering along the vehicle body upper surface an upper surface drying nozzle (2) (L _D -L _U), relative to the frame (1) with respect to the vehicle It is characterized in that it is configured to use a set up / down position (Sn) set based on the upper surface position (H) corresponding to the relative position (B-Lo-L _U + L _D ) displaced to the rear side in the moving direction. A control device for raising and lowering a top surface drying nozzle in a vehicle body cleaning device. 4. The relative position detecting means is a traveling pulse generating means (D ₁ ) which outputs a traveling pulse signal in accordance with relative movement between the frame (1) and a vehicle, and the ascending / descending position detecting means is A lift pulse generating means (D ₃ ) for outputting a lift pulse signal as the upper surface drying nozzle (2) moves up and down.
An up-and-down operation control device for an upper surface drying nozzle in a vehicle body cleaning device for a vehicle according to claim 1, characterized in that they are respectively configured.