JPH05268B2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention (1) Industrial application field The present invention relates to a drying device for an automobile body.

The automobile body drying device is used in a car wash machine.

(2) Prior Art Conventionally, in an automobile body drying apparatus, an upper surface drying nozzle provided on a traveling frame is used to dry the upper surface of an automobile body. and,
The upper surface drying nozzle is moved up and down so as to follow the shape of the upper surface of the automobile body.

As the drying device for the automobile body,
The one described in Publication No.-12382 is known. The drying device for an automobile body has a stylus and a flexible guide roller in contact with the upper surface of the automobile body, and the traveling frame is moved while maintaining a constant gap between the upper surface drying nozzle and the upper surface of the automobile body.

(3) Problems to be solved by the invention In general, in a car, in order to obtain good visibility,
Particular care must be taken when drying windshields and rear windows. Furthermore, it is known that the effect of the drying process is improved by lowering the traveling speed of the traveling frame.

However, in the conventional automobile body drying device, since the traveling speed of the traveling frame is constant,
There was a problem in that the drying process took a long time to perform the careful drying process. Another problem was that when the traveling speed of the traveling frame was increased, the drying process of the windshield and rear glass became insufficient.

The present invention was made in view of the above-mentioned problems, and an object of the present invention is to provide a drying device for an automobile body that can sufficiently dry a windshield and a rear glass without requiring a long time for drying. shall be.

B. Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the automobile body drying device of the present invention is provided with a top drying nozzle that is movable up and down on a running frame, and a top drying nozzle that is movable up and down. In a drying device for an automobile body that is operated to move up and down so as to follow the top surface shape of the automobile body, a variable rotation speed motive unit that causes the traveling frame to travel;
a traveling position detecting means for detecting the traveling position of the traveling frame; a vehicle body detecting means for detecting the automobile body; and an inclination angle of the upper surface of the automobile body based on an output signal of the traveling position detecting means and an output signal of the vehicle body detecting means. a determination means for determining that is greater than a predetermined value, and a rotation speed control means for controlling the rotation speed of the variable rotation speed prime mover based on the output signal of the traveling position detection means and the output signal of the determination means,
The present invention is characterized in that the traveling speed of the traveling frame is controlled.

The vehicle body detecting means may include a top car wash brush position detecting means for detecting the vertical position of a top car wash brush that is movably provided on the running frame, or a top car wash brush position detecting unit that is provided on a side surface of the running frame that faces the vehicle in the vertical direction. Multiple sensors, etc. can be used. That is, any device may be used as long as it has a function of detecting the height of the top surface of the vehicle body.

Further, as the vehicle body detecting means, an ultrasonic transmitter/receiver is used, and as the determining means, when an ultrasonic reception signal is not obtained, a means for determining that the inclination angle of the upper surface of the automobile body is equal to or greater than a predetermined value. can be used.

(2) Effects The automobile body drying device according to the present invention having the above-mentioned configuration includes a running frame with an upper surface drying nozzle that can be moved up and down, and a variable rotation speed prime mover that drives the running frame. Therefore, by raising and lowering the top surface drying nozzle as the traveling frame travels, the top surface drying process of the vehicle body is performed with the gap between the top surface of the vehicle body and the top surface drying nozzle having a size suitable for the drying process.

At this time, as the traveling frame travels, the traveling position detection means outputs a signal regarding the traveling position. Further, a vehicle body detecting means for detecting a vehicle body, and a determining means for determining that an inclination angle of an upper surface of the vehicle body is equal to or greater than a predetermined value based on an output signal of the traveling position detecting means and an output signal of the vehicle body detecting means. It is equipped with Therefore, the traveling position of the traveling frame where the inclination angle of the upper surface of the automobile body is equal to or greater than a predetermined value is determined from the output signal of the determining means. The vehicle also includes rotational speed control means for controlling the rotational speed of the variable rotational speed prime mover based on the output signal of the traveling position detection means and the output signal of the discrimination means. Therefore, the traveling speed of the traveling frame can be different from the traveling speed at other traveling positions at a traveling position where the inclination angle of the upper surface of the automobile body is equal to or greater than a predetermined value. Therefore, the traveling speed of the traveling frame can be made low at a traveling position where the upper surface inclination angle of the automobile body is a predetermined value or more, and high at other traveling positions.

Further, when upper car wash brush position detection means for detecting the vertical position of the upper car wash brush that is movably provided on the traveling frame is used as the vehicle body detection means, the upper car wash brush comes into contact with the upper surface of the automobile body. Therefore, the top car wash brush position detection means outputs a signal corresponding to the height of the top surface of the car body, that is, the vehicle height. Therefore, the determining means calculates the inclination angle of the upper surface of the automobile body by determining the change in vehicle height with respect to the traveling distance based on this signal and the output signal of the traveling position detecting means, and calculates the inclination angle of the upper surface of the automobile body. By comparing with the value, it can be determined whether the inclination angle of the upper surface of the automobile body is equal to or greater than a predetermined value.

Further, even when a plurality of sensors provided in the vertical direction on the side surface of the running frame facing the vehicle are used as the vehicle body detection means, the output signal of the sensor is a signal corresponding to the vehicle height. The discrimination by the discrimination means is performed in the same manner as when using the position detection means.

Furthermore, when an ultrasonic transmitter/receiver is used as the vehicle body detection means, the transmitted ultrasonic waves are reflected by the upper surface of the vehicle body, so if the angle of inclination is greater than a predetermined value, the reflected ultrasonic waves Sound waves are no longer received. Therefore, the determining means can determine that the inclination angle of the upper surface of the automobile body is greater than or equal to a predetermined value when no ultrasonic reception signal is obtained.

(3) Examples Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of one embodiment of the present invention, and FIG. 2 is a side view of its essential parts. In the running frame 1,
Wheels 8, 8 are pivotally supported along traveling rails 7, 7 so as to be able to travel back and forth. Further, blowers 9, 9 are provided on both upper sides of the traveling frame 1, respectively. An upper surface drying nozzle 2 is connected to the tips of the blower pipes 10, 10 connected to the discharge ports of the blowers 9, 9.

A flexible guide roller 11 is provided at the center of the lower part of the upper surface drying nozzle 2, and support rods 1 are provided at both left and right ends.
2 and 12 are provided integrally. Said support rod 1
Elevating members 13 and 14 are fixed to the tips of 2 and 12. The elevating members 13 and 14 have guide members 17 and 17 provided on both sides of the traveling frame 1, respectively, by guide rollers 15 and 15 that are pivotally supported on the upper part thereof and guide rollers 16 and 16 that are pivotally supported on the lower part of the elevating members 13 and 14. 17. An operating member 19 is provided at the upper end of one of the elevating members 13 to operate an upper limit switch 18 for detecting the upper limit position of the upper surface drying nozzle 2. The upper limit switch 18 and the operating member 19 constitute upper drying nozzle upper limit position detection means _D10 . Furthermore, at the upper end of the other elevating member 14,
A swing limit switch 20 is provided which is activated when the lifting members 13 and 14 swing beyond a predetermined angle.

One end of chains 21, 21 is fixed to the upper center of the upper drying nozzle 2. The chains 21, 21 pass through guide pulleys 22, 22, 23, 23 which are pivotally supported on the running frame 1, and then are suspended to suspend movable pulleys 24, 24, and the other ends are fixed to the running frame 1. . The movable pulleys 24, 24 are pivotally supported by a movable pulley frame 25, and the movable pulley frame 25 has its lower end fixed to the upper end of a piston rod 5 of a cylinder 29 serving as a driving means that is pivotally supported by a running frame. Further, a stopper 26 for determining the upper limit position of the movable pulley frame 25 is provided on the traveling frame 1. A stopping device 6, which will be described later, is provided at the upper end of the cylinder 29 to stop the piston rod 5.

The rotating shaft 27 of the guide pulleys 23, 23 is provided with an elevating upper surface drying nozzle position detecting means _D9 .

The wheels 8, 8 are provided with driven sprockets 28,
28 are provided coaxially, and driving sprockets 30, 30 are provided on the drive shafts of prime movers 29, 29 supported by the traveling frame 1. The driven sprockets 28, 28 and the driving sprockets 30, 3
0, chains 31, 31 are suspended.
The drive shaft of one of the variable rotational speed prime movers 3 is provided with traveling position detection means _D1 .

A limit switch 32 is provided at the center of the lower part of the traveling frame 1. The limit switch 32 is configured so that the traveling frame 1 is connected to the traveling rail 7,
7, it is activated by a cam 33 provided on one of the running rails 7. The limit switch 32 and the cam 33 constitute a start position detection means _D6 .

The upper car wash brush 4 is mounted on pivot shafts 34, 34 rotatably supported on both sides of the traveling frame 1, respectively.
is swingably supported via swing arms 35, 35. The pivots 34, 34 are fixed to the intermediate portions of the swing arms 35, 35, and the support shaft ₂₁ of the upper car wash brush 4 is rotatably supported at the tip portions thereof. A prime mover 36 is provided at the base end of one swinging arm 35, and its output is transmitted to the support shaft 2 ₁ of the upper car wash brush 4 via a transmission mechanism (not shown) provided inside the swinging arm. It is now being transmitted to A balance weight W is fixed to the base end of the other swinging arm 35. A magnet 37 is provided on one of the pivots 34, and together with a reed switch 38 which operates when the upper car wash brush 4 is at the upper limit position, constitutes upper car wash brush upper limit position detection means _D7 . Further, the pivot shaft 34 is provided with an upper car wash brush position detecting means _D5 which constitutes the vehicle body detecting means _D2 . On the other hand, a piston rod 40 of a storage cylinder 39 for storing the upper car wash brush 2 at the upper limit position is attached to the other pivot 34 via an operating arm 41.

FIG. 3 shows a specific structure of the stop device 6 shown in FIGS. 1 and 2. A ring-shaped brake shoe 4 is provided on the outer periphery of the piston rod 5 of the cylinder 29.
2 is wrapped. A cylindrical casing 6 ₁ of the stop device 6 is arranged so as to surround the piston rod 5 including the brake shoe 42 . A brake piston 43 defining an air chamber 6 ₂ is slidably fitted into the casing 6 ₁ , and the piston 43 is pressed to reduce the volume of the air chamber 6 ₂ . A working brake spring 44 is accommodated. The air chamber 6 ₂ is communicated with a pressurized air source Ai (FIG. 4) via a supply port 45. In addition, a plurality of brake arms 46 are housed radially in the air chamber ₆₂ so as to surround the piston rod 5, and the base ends (upper ends) of these brake arms 46 are connected to the inner surface of the brake shoe 42 and the casing ₆₁ . It is slidably supported in the radial direction of the piston rod 5, and its tip (lower end)
A roller 47 is rotatably supported on the shaft, and a tapered surface 48 of the brake piston 43, which is urged upward by the brake spring 44, is pressed against the outer surface of the roller 47. Therefore, when pressurized air is not supplied to the air chamber 6 ₁ , the brake piston 43 is raised by the elastic force of the brake spring 44 , and its tapered surface 48 is connected to the roller 4 .
7, the brake arm 46 is swung inward to press the brake shoe 42 against the piston rod 5, and the piston rod 5 is braked. Further, when pressurized air is supplied from the pressurized air source Ai to the air chamber ₆₂ , the brake piston 43 is pushed down against the biasing force of the brake spring 44, and the rollers 47 move outward. Therefore, the brake arm 46 no longer presses the brake shoe 42 against the piston rod 5, so the piston rod 5
operates freely.

FIG. 4 is a diagram showing the air and hydraulic circuits. A pipe 49 connected to the pressurized air source Ai is connected to the air supply port 45 of the stop device 6 via a pressure reducing valve 50 that adjusts the pressure and a normally open three-way solenoid valve 51. The pipe 49 is also connected to the upper part of the pressurized container 54 via a pressure reducing valve 52 and a normally open three-way solenoid valve 53. And pressurized container 54
The hydraulic oil put into the cylinder 29 is supplied to the cylinder 29 via a check valve 55 with a fixed throttle. The check valve 55 with a fixed throttle is opened when the cylinder 29 contracts, and closed when the cylinder 29 extends.

FIG. 5A is a diagram showing the specific structure of the detection parts of the running position detection means D ₁ , the upper surface car wash brush position detection means D ₅ , and the upper surface drying nozzle position detection means D ₉ shown in FIGS. 1 and 2. , FIG. 5B is a diagram showing the output waveform. In FIG. 5A, a slit plate Sl is placed opposite a disk RD on which a plurality of slit patterns are written on the outer periphery and one slit pattern is written on the inner periphery. The slit plate Sl has A-phase slits SA and B-phase slits SB corresponding to the slit pattern on the outer periphery, and Z-phase slits SZ, corresponding to the slit pattern on the inner periphery.
are provided for each. Then, the light emitting diode LEDA and the phototransistor TrA are arranged with the A-phase slit SA and the disk RD in between.
A light emitting diode LEDB and a phototransistor are sandwiched between the B phase slit SB and disk RD.
TrB, and a light emitting diode LEDZ and a phototransistor TrZ are arranged facing each other with the Z-phase slit SZ and disk RD interposed therebetween. When the disk RD is rotated in the direction of the arrow, the light from the light emitting diodes LEDA to LEDZ passes through or is blocked, so the phototransistors TrA to TrZ output the signals STrA to STrA shown in FIG.
Output STrZ. The signals STrA and STrB are pulse signals having a period T with a phase difference of 90°, and the signal STrZ is a signal indicating the origin position. And the signal STrA~
STrZ with rotation direction determination circuit and counter (not shown)
By inputting , the rotation angle of the disk RD can be detected as the number of pulses. Therefore, the running position of the running frame 1 from the start position,
The vertical position of the upper car wash brush 4 from the upper limit position and the vertical position of the upper drying nozzle 2 from the upper limit position can be detected as respective pulse numbers.

FIG. 6 shows a lifting position setting means D ₁₁ for setting the lifting position of the upper surface drying nozzle 2, a determining means D ₃ for determining whether the angle of inclination of the upper surface of the automobile body is greater than a predetermined value, and the variable rotational speed prime mover. 3 is a block diagram of a control system in which a microcomputer is used as the rotation speed control means D ₄ for controlling the rotation speed of No. 3 and other control means. FIG. The control means 60 is
A microprocessing unit 61 that performs arithmetic processing, a read-only memory M ₁ that stores programs and fixed data, a random access memory M ₂ that is used for a work area and storage of variable data, and an input interface 62.
It consists of an output interface 63 and a bus 64 that connects them. The input interface 62 includes the above-mentioned running position detection means.
D ₁ , Upper surface car wash brush position detection means D ₅ , Upper surface drying nozzle position detection means D ₉ , Upper surface drying nozzle upper limit position detection means D ₁₀ , Start position detection means D ₆ , Upper surface car wash brush upper limit position detection means D ₇ , Reciprocating row The signal generating means D ₈ and the output signal of the swing limit switch 20 are input. The output interface 63 is connected to the solenoid valves 51 and 53 shown in FIG.
solenoid coils L51, L53, variable rotation speed prime movers 3, 3 provided on the traveling frame 1,
A motor 36 provided on the swing arm 35 and a control device 65 for the storage cylinder 39 are connected. Also connected to the bus 64 is a storage means M consisting of a random access memory _M2 .

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

FIG. 7 is a diagram showing the brushing process when the traveling frame 1 moves back and forth, FIG. 8 is a flowchart showing the operation of the control means 60 in that case, and FIG. FIG.

In FIG. 7, the traveling frame 1 is located at position 1a.
When the upper car wash brush 4 is at the upper limit position 4a, when the reciprocating signal generating means _D8 outputs a signal indicating the reciprocating movement, the control means 60 controls the eighth
It operates based on the flowchart shown in the figure. In step _S1 , it is determined whether brushing processing is to be performed. Then, if it is a brushing process, the process advances to step _S3 , and if not, the process advances to step _S2 to perform other processes. In step _S3 , the control device 65 of the storage cylinder 39 is activated so that the piston rod 40 of the storage cylinder 39 can freely extend. Further, the motor 36 is operated to rotate the upper car wash brush. Then, the variable rotation speed motors 3, 3 are operated at a rotation speed suitable for the brushing process by the rotation speed control means _D4 , and the wheels 8, 8 are operated at a rotation speed suitable for the brushing process.
With this rotation, the traveling frame 1 starts moving forward. Therefore, as shown in FIG. 7, the upper car wash brush 4 has been lowered to position 4b. At this time,
The traveling position detecting means D ₁ sends a signal regarding the position of the traveling frame 1 to the top car wash brush position detecting means D _{5 .}
output signals regarding the position of the upper car wash brush 4, respectively. Then, when the traveling frame 1 moves forward and leaves the position 1a, the start position detection means _D6 stops outputting a signal because the cam 33 does not operate the limit switch 32. Therefore, the operation proceeds from step _S4 to step _S5 . At this time, as shown in FIG.
performs the brushing process by contacting the body of the automobile V at positions 4c, 4d, and 4e. On the other hand, in step S ₅ , the output signals of the traveling position detection means D ₁ and the upper surface car wash brush position detection means D ₅ are input, and in step S ₆ , the elevation position setting means D ₁₁ is set to the elevation position of the upper surface drying nozzle 2. and step S ₇
Then, it is stored in the storage means M in correspondence with the traveling position. These steps _S5 to _S7 are repeated until the reciprocating signal generating means _D8 no longer outputs the reciprocating signal in step _S8 . Then, as shown in FIG. 7, when the upper car wash brush 4 advances to positions 4f to 4g and the traveling frame 1 reaches position 1b, the forward signal is no longer output, and the operation returns to step _S8 in FIG. Proceed to step _S9 . In step _S9 , the variable rotational speed prime movers 3, 3 are deactivated,
The traveling frame 1 is stopped. Further, the prime mover 36 is deactivated, the rotation of the upper car wash brush 4 is stopped, and the storage cylinder 39 is driven by the control device 65 to raise the upper car wash brush 4.
At that time, when it rises to position 4h shown in Fig. 7,
Since the magnet 37 operates the reed switch 38, the upper car wash brush upper limit position detection means _D7 outputs a signal. Therefore, the control device 65 stops the storage cylinder 39, stores the upper car wash brush 4 at the upper limit position, and ends the brushing process.

Next, FIG. 9 shows the principle of setting the vertical position of the upper surface drying nozzle 2 in step _S8 described above.
The upper car wash brush 4 is lowered from its upper limit position 4a to a position where the pivot shaft 34 has rotated by an angle θ ₁ , and the vehicle V
is in contact with the top of the vehicle body. At this time, the swinging arm 3
5 is inclined by an angle θ ₂ with respect to the horizontal line H passing through the pivot 34. This angle θ ₂ can be easily determined from the output signal of the upper car wash brush position detection means D ₅ corresponding to the angle θ ₀ and the angle θ ₁ at the upper limit position 4a. If the distance between the centers of the pivot 34 and the support shaft 2 ₁ is L, then from the horizontal line H to the support shaft 2 ₁
The distance A to the center of is expressed by equation (1).

A=Lsinθ ₂ ...(1) Since the optimum position for the drying process of the upper surface drying nozzle 2 is the lifting position shown in the figure, the lifting position SD from the upper limit position set by the lifting position setting means _D11 is ₃ is expressed by equation (2).

SD ₃ =A+X+C(θ ₁ ) =Lsinθ ₂ +X+C(θ ₁ ) (2) X is a value determined by the upper limit position of the top drying nozzle 2 and the height position of the pivot shaft 34. Also, the correction value C
(θ ₁ ) is determined by the angle θ ₂ of the swinging arm 35 from the horizontal line H, which changes the pressure of the upper car wash brush 4 against the upper surface of the vehicle body of the vehicle V and deforms the upper car wash brush 4, so the support shaft 2 ₁ This is for correcting changes in the distance between the center of the vehicle V and the top surface of the vehicle body, and is a value determined in advance for θ ₁ . At this time, the output signal of the traveling position detection means D ₁ is the position SD ₁
This corresponds to However, the top drying nozzle 2 is at position SD ₁ '. Since the position SD ₁ increases with respect to the direction in which the traveling frame 1 travels, the position SD ₁ ' is expressed by equation (3).

SD ₁ ′=SD ₁ −B=SD ₁ −Lcosθ ₂ (3) As for the lifting position SD ₃ , the distance B is stored in advance in the control means 60 in correspondence with the angle θ ₁ .

Therefore, the data expressed by equation (2) is stored in the storage means M at the address expressed by equation (3).

FIG. 10 is a diagram showing the drying process when the traveling frame 1 goes back, and FIG. 11 is a flowchart showing the operation of the control means 60 in that case.

In FIG. 10, the traveling frame 1 is located at position 1b.
When the upper surface drying nozzle 2 is at the upper limit position 2a, when the reciprocating signal generating means _D8 outputs a signal indicating the return movement, the control means 60 controls the first
It operates based on the flowchart in Figure 1. In step _S11 , it is determined whether or not drying processing is to be performed. and,
If it is a drying process, proceed to step _S13 , otherwise proceed to step _S12 to perform another process. In step _S13 , the blowers 9, 9 are operated, and
The rotation speed variable prime movers 3, 3 are controlled by rotation speed control means.
By operating at high speed rotation by D ₄ , air is ejected from the upper surface drying nozzle 2, and the traveling frame 1 returns at high speed, thereby starting the drying process. At this time, if the upper surface drying nozzle 2 contacts the upper surface of the vehicle body of the automobile V and swings due to a malfunction of the control means 60, the swing limit switch 20 is activated. Therefore, in step _S14 , it is determined that the output signal of the swing limit switch 20 is present, and the process proceeds to step _S15 , where all operations are stopped. On the other hand, if no inconvenience such as malfunction occurs, the process proceeds to step _S16 , and the traveling position detection means
Input the output signal of _D1 . And step S ₁₇
The stored contents of the storage means M are read out. At this time, as shown in FIG. 10, the upper surface drying nozzle 2 is separated from the center of the pivot 34 of the swing arm 35 by a distance D. Therefore, the read address Ad at the traveling position _SD1 is expressed by equation (4).

Ad=SD ₁ +D (4) The set value SD ₃ stored in the address Ad of this equation (4) is the optimum vertical position for the drying process of the upper surface drying nozzle 2. At this time, the set value SD _3X stored at the address Adx, which is a predetermined distance away from the address Ad on the side corresponding to the forward direction of the traveling frame 1
Also read out. Then, in step _S18 , the set value is
The set value SD _3X is subtracted from SD ₃ , and it is determined whether the absolute value of this value is greater than or equal to a predetermined value. If the absolute value of this value is greater than or equal to a predetermined value, this means that the inclination angle of the upper surface of the vehicle V is greater than or equal to the predetermined value.
Proceed to step _S19 and proceed to the variable rotation speed prime mover 3, 3.
operate at low speed. If this difference is less than a predetermined value, the process proceeds to step _S20 , and the variable rotational speed motors 3, 3 are operated at high speed. The process then proceeds from steps _S19 and _S20 to step _S21 . step
_S21 , the upper surface drying nozzle elevation position detection means _D9
The output signal SD ₄ of is input. And the steps
At _S22 , it is compared with the set value _SD3 . As a result of this comparison, if SD ₄ > SD ₃ , proceed to step S ₂₃ and SD ₄
If = SD ₃ , proceed to step _S25 , and if SD ₄ <SD ₃ , proceed to step _S24 . S step ₂₃
Then, the solenoid valve 53 has a solenoid coil L5.
The current flowing through 3 is cut off and becomes de-energized. Therefore, since hydraulic oil is supplied to the cylinder 29, the upper surface drying nozzle 2 rises. And the steps
The loop of S ₂₁ , S ₂₂ , and S ₂₃ is repeated until the top drying nozzle 2 is at the optimum position. In step _S24 , the solenoid valve 53 is connected to the solenoid coil L53.
Since a current flows through, it is excited and the top drying nozzle 2
Due to its own weight, the hydraulic oil supplied to the cylinder 29 returns to the pressurized container 54, so the upper dry nozzle 2
is descending. At this time, since the check valve of the fixed throttle check valve 55 is closed, the hydraulic oil is regulated by the fixed throttle. Therefore, the top drying nozzle 2
descends at a slower speed than it ascends. The loop of steps S ₂₁ , S ₂₂ and S ₂₄ is then repeated until the top drying nozzle is in the optimum position. In step _S25 , the solenoid valve 51 is energized because current flows through the solenoid coil L51. Therefore, the stop device 6 is activated and the piston rod 5 is stopped, so that the upper surface drying nozzle 2 is maintained at a constant vertical position. Then, when the running frame 1 returns to the position 1a shown in FIG. 10 and the start position detection means _D6 outputs a signal, the process proceeds to step _S27 based on the determination in step _S26 , and if no signal is output, the process proceeds to step _S16 . return. Therefore, the upper surface drying nozzle 2 is located at positions 2b to 2b, as shown in FIG.
It goes up and down for 2 hours and maintains a position suitable for the top surface of the car body and the drying process. Further, the traveling frame 1 travels at high speed until the upper surface drying nozzle 2 reaches position 2c, travels at low speed when the upper surface drying nozzle 2 is at positions 2c to 2d, and travels at low speed when it is at positions 2d to 2e to 2f. It runs at high speed, and when it is at positions 2f to 2g, it runs at low speed, and when it passes position 2g, it runs at high speed again. Then, in step _S27 , the blowers 9, 9 and variable rotational speed motors 3, 3 are stopped, and the upper drying nozzle 2 is raised. At this time, as shown in FIG.
When the nozzle reaches the position 2e, the upper drying nozzle upper limit position detection means _D10 outputs a signal to stop the rising and terminate the drying process.

Next, effects specific to the above-described embodiment of the present invention will be described. According to the embodiment of the present invention described above, when the swing limit switch 20 is activated and outputs a signal,
Stop all operations. Further, flexible guide rollers 11, 11 are provided at the center of the lower part of the upper surface drying nozzle 2. Therefore, even if the control device 60 malfunctions and the upper surface drying nozzle 2 comes into contact with the vehicle body of the automobile V, there is little risk of damaging the vehicle body.

Furthermore, a stop device 6 provided on the cylinder 29
stops the piston rod 5. Therefore, the upper surface drying nozzle 2 is fixed in the raised and lowered position when the piston rod 5 is stopped. Therefore, the gap between the upper surface drying nozzle 2 and the upper surface of the vehicle body of the automobile V can be accurately maintained at a constant distance suitable for the drying process.

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

For example, as the vehicle body detection means, it is possible to use a plurality of sensors provided vertically on the side surface of the traveling frame 1 facing the vehicle, or an ultrasonic transmitter/receiver. In these cases, since the raising and lowering operation of the upper surface drying nozzle 2 and the traveling speed of the traveling frame 1 can be controlled while detecting the vehicle height, the drying process can also be performed while the traveling frame 1 is moving back and forth.

Moreover, a prime mover can be used instead of raising and lowering the upper surface drying nozzle 2 using the cylinder 29, and instead of being suspended by the chains 21, 21, it can be supported by a swing arm.

In addition, in cases where the orientation of the vehicle with respect to the traveling frame 1 is determined, it is determined whether the absolute value of the value obtained by subtracting the set value SD _3X from the set value SD ₃ performed in step _S18 is greater than or equal to a predetermined value. However, if the sign of the subtracted value is a predetermined sign depending on the direction of the car, instead of proceeding to step _S19 if it is greater than the predetermined value and proceeding to step _S20 if it is less than the predetermined value, the process proceeds to step S. If the code is not _a predetermined sign, the process may proceed to step _S19 or step _S20 depending on whether the absolute value is greater than or equal to a predetermined value. In this case, only one of the windshield and rear glass, for which the inclination angle of the upper surface of the vehicle body is equal to or greater than a predetermined value, can be dried at a low speed. Therefore, by drying only the windshield that requires particularly careful processing at a low speed, the time required for the drying process can be shortened.

Furthermore, the upper surface car wash brush 4 is moved to the swing arm 34.
As shown in FIG. 12, the sprocket 6 is driven by a motor 71.
A chain 68 is suspended between the chain 6 and the sprocket 67, a truck 69 and a balance weight 70 are provided at symmetrical positions of the chain 68, and the top car wash brush 2 is attached to the truck 69.
The support shaft 2 ₁ may be supported.

C. Effects of the Invention As described above, according to the automobile body drying device of the present invention, the traveling speed of the traveling frame is lower than that at other traveling positions when the inclination angle of the upper surface of the automobile body is equal to or greater than a predetermined value. The running speed can be different from the running speed. Therefore, the speed can be set low at the driving position where the top surface inclination angle of the automobile body is at least a predetermined value and the drying process of the windshield or air glass is performed, and the speed can be set high at other driving positions.
Therefore, the windshield and the rear glass can be carefully dried, and the drying process does not require a long time.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a side view of main parts, and FIG. 3 is a diagram showing the configuration of a stop device.
FIG. 4 is a diagram showing the air and hydraulic circuits, FIG. FIG. 5 is a diagram showing the output signal of A, FIG. 6 is a block diagram of the control system, FIG. 7 is a diagram showing the brushing process, FIG. Figure 9 is a diagram showing the principle of setting the vertical position of the top drying nozzle, Figure 10 is a diagram showing the drying process,
FIG. 1 is a flowchart showing the operation of the control means in the case of FIG. 10, and FIG. 12 is an example of a design change of the support mechanism for the upper car wash brush. D ₁ ... Traveling position detection means, D ₂ ... Vehicle body detection means, D ₃ ... Discrimination means, D ₄ ... Rotation speed control means,
_D5 ...Top car wash brush position detection means, 1...Traveling frame, 2...Top drying nozzle, 3...Variable rotational speed prime mover, 4...Top car wash brush.

Claims (1)

[Scope of Claims] 1. A drying device for an automobile body, in which an upper surface drying nozzle 2 is provided on a traveling frame 1 so as to be movable up and down, and the upper surface drying nozzle 2 is moved up and down so as to follow the shape of the upper surface of the automobile body. , a variable rotation speed prime mover 3 that causes the traveling frame 1 to travel;
A traveling position detecting means D1 for detecting the traveling position of the traveling frame ₁ , a vehicle body detecting means _D2 for detecting the automobile body, an output signal of the traveling position detecting means _D1 , and an output signal of the vehicle body detecting means _D2 . a discriminating means D ₃ for discriminating whether the inclination angle of the upper surface of the automobile body is equal to or greater than a predetermined value based on the above, and the rotation speed variable based on the output signal of the traveling position detecting means D ₁ and the output signal of the discriminating means D ₃ A drying device for an automobile body, characterized in that it comprises a rotational speed control means _D4 for controlling the rotational speed of a prime mover 3, and controls the traveling speed of the traveling frame 1. 2. The vehicle body detection means D ₂ is an upper car wash brush position detection means for detecting the vertical position of the upper car wash brush 4 that is movably provided on the traveling frame 1.
The drying device for an automobile body according to item 1, characterized in that the drying device is _D5 . 3. The vehicle body drying device according to item 1, wherein the vehicle body detection means _D2 comprises a plurality of sensors provided in the vertical direction on the side surface of the running frame 1 facing the vehicle. 4. The vehicle body detection means D ₂ comprises an ultrasonic transmitter/receiver, and the determination means D ₃ determines that the inclination angle of the upper surface of the automobile body is equal to or greater than a predetermined value when no ultrasonic reception signal is obtained. 2. The automobile body drying device according to item 1, characterized in that: