JP2648837B2 - Vehicle body drying equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body drying apparatus, and more particularly, to a frame in which an upper surface drying nozzle is supported on a frame so as to be able to move up and down, and the frame and the vehicle are moved relative to each other so that the upper surface drying nozzle follows the vehicle body upper surface shape. The present invention relates to a body drying device adapted to be driven.

[0002]

2. Description of the Related Art In such a vehicle body cleaning apparatus, a photoelectric sensor is used as a vehicle body upper surface detecting means for detecting the vehicle body upper surface in a non-contact manner in front of a lower end of an upper surface drying nozzle in a direction of relative movement of a frame with respect to the vehicle. Japanese Patent Application Laid-Open No. Sho 62-62 discloses an apparatus in which an upper surface drying nozzle is provided so as to move up and down integrally with a nozzle and controls a nozzle elevating means based on the output of the photoelectric sensor so that the upper surface drying nozzle follows the vehicle body upper surface shape. Conventionally known as disclosed in JP-A-120250.

[0003]

However, in the above-described known body drying apparatus, when the photoelectric sensor receives light (that is, the upper surface of the vehicle is no longer detected), the lifting means is controlled so as to immediately lower the upper surface drying nozzle. If there is a protrusion on the upper surface of the vehicle body, the upper surface drying nozzle may come into contact with the protrusion.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object of the present invention is to provide a vehicle body drying apparatus capable of preventing a top surface drying nozzle from coming into contact with a protrusion even on a vehicle body upper surface. And

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an upper surface drying nozzle supported on a frame so as to be able to move up and down, and the frame and the vehicle are relatively moved to form the upper surface drying nozzle into a body upper surface shape. In the vehicle body drying apparatus for a vehicle, the lifting means for raising and lowering the upper surface drying nozzle, and a lower end of the upper surface drying nozzle,
A vehicle body upper surface detecting means for detecting the front surface of the vehicle body on the front side in a relative movement direction of the frame with respect to the vehicle in a non-contact manner, and a lowering of the upper surface drying nozzle to delay the lowering of the upper surface drying nozzle so that the upper surface drying nozzle does not contact the vehicle upper surface. Control means for controlling the lifting / lowering means based on the output.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below based on one embodiment of the present invention illustrated in the accompanying drawings.

In the accompanying drawings, FIGS. 1 to 5 each show a configuration of an embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a side view of a main part, and FIG. FIG. 4, FIG.
Is a diagram showing an air and hydraulic circuit, and FIG. 5 is a block diagram of a control system.

In FIG. 1 and FIG. 2, wheels 8 are pivotally supported on a traveling frame 1 as a frame which can move relative to a vehicle along traveling rails 7 so as to be able to reciprocate. . Blowers 9 and 9 are provided on both upper sides of the traveling frame 1, respectively. And
Blower tubes 10, 10 connected to the discharge ports of the blowers 9, 9
The upper surface drying nozzle 2 is connected to the tip of the.

At both left and right ends of the upper surface drying nozzle 2, support rods 11, 11 are provided. The support rods 11, 1
Elevating members 12 and 13 are fixed to the tip of 1.
The elevating members 12 and 13 are provided on both sides of the traveling frame 1 by guide rollers 14 and 14 supported on the upper part thereof and guide rollers 15 and 15 supported on the lower part thereof. 3 is engaged. An operating member 17 for operating an upper limit switch 16 for detecting an upper limit position of the upper surface drying nozzle 2 is provided at an upper end of the one lifting member 12. By the upper limit switch 16 and the actuating member 17, upper limit position detecting means D ₆ is constituted.

At the center of the upper end of the upper surface drying nozzle 2,
One ends of the cords 18, 18 are fixed. The cable 1
8, 18 are guide pulleys 19, which are pivotally supported on the traveling frame 1.
After passing through 19,20,20, it is hung down and the moving pulley 2
The other ends are fixed to the traveling frame 1. The moving pulleys 21 and 21 are pivotally supported by a moving pulley frame 22, and the lower end of the moving pulley frame 22 is fixed to the upper end of a piston rod 5 of a cylinder 4 as a driving means that is pivotally supported by a traveling frame. I have. In addition, the moving pulley frame 22
A stopper 23 for determining the upper limit position is provided on the traveling frame 1. At the upper end of the cylinder 4, a stop device 6 described below for stopping the piston rod 5 is provided.

The guide pulleys 20, 20 have a circular plate 2 made of a magnetic material having a plurality of convex protrusions provided at equal intervals on the outer peripheral portion.
4 is provided coaxially. A proximity switch 25 including a sensor coil and the like is provided facing the outer periphery of the disk 24. The proximity switch 25 and the disk 24, the lifting pulse generating means D ₃ is constituted.

The driven sprocket 2 is mounted on the wheels 8,8.
6 and 26 are provided coaxially, and drive sprockets 28 and 28 are provided on drive shafts of the prime movers 27 and 27. The sprockets 26, 26 and the driving sprockets 28, 2
8, chains 29, 29 are suspended. A disk 30 similar to the disk 24 is provided on a drive shaft of one of the prime movers 27, and a proximity switch 31 similar to the proximity switch 25 is provided to face an outer peripheral portion thereof. The proximity switch 31 and the disc 30, the traveling pulse generating means D ₁ is constructed.

In the center of the lower part of the running frame 1, a limit switch 32 is provided. The limit switch 32 is actuated by a cam 33 provided on one of the traveling rails 7 when the traveling frame 1 is at the start position of the traveling rails 7, 7. The limit switch 32
And by the cam 33, the start position detection means D ₅ is formed. A plurality of photoelectric switches K ₁ provided in a vertical direction are provided on one side of the traveling frame 1 facing the vehicle.
Photoelectric switch group K consisting ~K ₁₅ is, on the other side projector La composed of a plurality of light sources corresponding to each photoelectric switch K ₁ ~K ₁₅ are provided, respectively. By the photoelectric switch group K and searchlights La, constitute the vehicle detecting unit D _2. The traveling frame 1 has a side drying nozzle 3.
Cleaning devices such as a top brush and a side brush (not shown) are provided.

FIG. 3 shows the stopping device 6 shown in FIGS.
Is shown. A ring-shaped brake shoe 35 is wound around the outer periphery of the piston rod 5 of the cylinder 4. Cylindrical casing ₆₁ of the stopping device 6 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 Acting brake spring 3
8 are accommodated. The air chamber 6 ₂ through the supply ports 41, in communication with the source of pressurized air Ai (Fig. 4). 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 brake shoe 35
And a casing ₆₁ of the inner surface are swingably supported in the radial direction of the piston rod 5, the addition roller 37 is rotatably supported at its front end (lower end), on the outer surface of the roller 37 The tapered surface 40 of the brake piston 39 urged upward is pressed by the brake spring 38. 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 When the brake shoe 35 moves, the brake shoe 35 is pressed against the piston 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 down downward against the biasing force of the brake spring 38, roller 37 moves outward.
Therefore, the brake arm 36 does not press the brake shoe 35 against the piston rod 5, so that the piston rod 5
Works freely.

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

Thus, the stopping device 6 and the cylinder 4 as a driving means cooperate with each other to constitute a lifting means Dt of the present invention for raising and lowering the upper surface drying nozzle 2.

FIG. 5 shows a micro computer as a control means.
FIG. 4 is a block diagram of a control system when data is used. Control hand
Stage 50 is a microprocessing unit for performing arithmetic processing.
And stores programs and fixed data.
Read only memory M₁And work area and available
Random access memory M used for storing modified data
_Two, An input interface 52, and an output interface
And a bus 54 connecting them.
Have been. The input interface 52 includes the aforementioned
Running pulse generating means D₁, Vehicle detection means D_Two, Lifting pal
Generating means D_Three, Reciprocating signal generating means D_Four, Upper limit detection hand
Step D_Five, And start position detecting means D ₆Output signal
Has been entered. The output interface 53
The solenoid coils L of the solenoid valves 44 and 46 shown in FIG.₄₄,
L₄₆It is connected to the. The bus 54 has a run
Storage means M comprising a dumb access memory is also connected.
You.

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 the vehicle when the traveling frame 1 moves forward, FIG. 7 is a flowchart showing the operation of the control means 50 in that case, and FIG. FIG. 9 is a flowchart showing the drying process, and FIG. 9 is a flowchart showing the operation of the control means 50 in that case.

In FIG. 6, first, when the reciprocating line signal generating means D ₄ outputs a signal indicating forward movement, the prime mover 2
7, 27 are operated, and the traveling frame 1 is driven by the traveling rails 7, 7
To the right in the drawing, from position 1a to position 1b
Go up to

At this time, the start position detecting means D ₅
Means that, except for the position 1a, the cam 33 is
2 is not activated, so no signal is output. The running pulse generating means D ₁ is provided with the proximity switch 3 when the disk 30 rotates.
1 is operated, so that a running pulse signal is output. Also, the vehicle detecting means D _2, the light of the projector La is blocked by the body of the vehicle, among the plurality of photoelectric switch K ₁ ~K ₁₅ constituting the sensor group systems, photoelectric switch K ₁ provided at the bottom To the photoelectric switch provided at a position corresponding to the upper surface of the vehicle body of the vehicle, so that a signal corresponding to the vehicle height is output. For example, the traveling frame 1 is forward stroke distance L ₁ in FIG. 6, when in the position 1c, the signal of the photoelectric switch K ₁ ~K ₅ is obtained.

At this time, the control means 50 operates based on the flowchart of FIG. When reciprocating row signal generating means D ₄ outputs a signal indicative of the forward stroke, it is determined whether the vehicle height measured in step S _1. Then, the process proceeds to step S _3, if the vehicle height measurement, performs other processing proceeds to step S ₂ otherwise. In step S _3, the start position detection means D
The presence or absence of the output signal of ₅ is determined. If Mu output signal goes 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 FIG. Step enter the running pulse signal S _4, one adds to the running pulse count A each time the pulse signal is inputted. In step S _5, and inputs the output signal of the vehicle detection unit D _2. This output signal is a 15-bit signal in which the value of each bit corresponds to the presence or absence of the output signals of the photoelectric switches K _{1 to} K ₁₅ . In step S _6,
Storing the output signal of the vehicle detection means D ₂ as data in address A of the memory means M. In step S _7, the reciprocating line signal generating means D ₄ is determined whether or not a signal indicating the forward stroke. Returns to step S _4, if signal Yes, ends if Mu signal.

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

In FIG. 8, the reciprocating line signal generating means D
_{When 4} outputs a signal indicating a go-back, the traveling frame 1 goes back from the position 1b to the position 1a in the left direction in the drawing. Then, the upper surface drying nozzle 2 is moved up and down to perform a drying process.

At this time, the lifting pulse generating means D
₃ outputs a lifting pulse signal because the disk 24 rotates and the proximity switch 25 is operated. When the upper surface drying nozzle 2 starts lowering, the upper limit detecting means D ₆ does not output a signal because the operating member 17 does not operate the upper limit switch 16.

At this time, the control means 50 operates based on the flowchart of FIG. When reciprocating row signal generating means D ₄ outputs a signal indicative of the go-around, it is determined whether a drying process is performed in step S _8. Then, if the drying process proceeds to step S _10, performs other processing proceeds to S ₉ otherwise. The running pulse signal input at step 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. Step S ₁₁
Then, the following calculation is performed on the number of running pulses. 8, the traveling frame 1, and go-around from the position 1b, reaches the position 1d, when the distance from the start position 1a becomes L _2, running pulse count B is running pulse when the distance L ₂ and forward stroke It is equal to the number A. A distance Lo is provided between the vehicle detecting means D ₂ and the upper surface drying nozzle 2.
There are intervals. Furthermore, since the ascending speed of the upper surface drying nozzle 2 is finite, the distance Lu in which the traveling frame 1 moves in the time required for ascending has to be taken into consideration so that it does not come into contact with the vehicle body. Therefore, in order to move the upper surface drying nozzle 2 up and down, the traveling frame 1
Is not based on the actual distance L ₂ but on the basis of the vehicle height at the distance L ₃ obtained by subtracting the distance Lo and the distance Lu from the distance L ₂ . Therefore, the number of traveling pulses corresponding to the distance Lo and the distance Lu is subtracted from the number of traveling pulses B to calculate the number of traveling pulses X. Next, in step S _12, reads the stored content of the address X of the storage means M. The stored contents are data H corresponding to the vehicle height at the position of the number X of running 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 By subtraction, the number S of elevation pulses is obtained. 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 lifting pulse number Sn is a numerical value uniquely determined by the vehicle height, and the data H corresponding to the vehicle height
Is stored in advance so as to correspond to. Therefore,
Step S ₁₂ by the number of elevation pulses from the read data H Sn
Is determined. As a result of the comparison, the S <Sn if step S ₁₆ to step S ₁₅ if S> Sn, S = Sn
If in step S _17, advance, respectively. In step S _15, the solenoid valve 46, since the current flowing through the solenoid coil L ₄₆ is turned off, the non-excited. As a result, the hydraulic oil is supplied to the cylinder 4, and the upper surface drying nozzle 2 rises. In step S _16, the solenoid valve 46 is energized and the current flows through the solenoid coil L _46, hydraulic oil supplied to the cylinder 4 due to the weight of the drying nozzle 2, the display returns to the pressure vessel 47, the upper surface drying nozzle 2 descends.
At this time, since the check valve of the check valve with the fixed throttle is closed, the hydraulic oil is adjusted by the fixed throttle. Therefore,
The upper surface drying nozzle 2 descends at a lower speed than when ascending.

Further, the data H corresponding to the vehicle height as described in step S _11, since the read those of the prior position than the actual position of the traveling frame 1, even when the upper surface drying nozzle 2 downward In order to prevent the contact between the nozzle 2 and the outer surface of the vehicle body, in particular, when the upper surface drying nozzle 2 is lowered, the distance L _D shown in FIG.
Is executed after the number of running pulses corresponding to (1) is input (that is, after the running frame 1 goes back the distance L _D ).

[0028] Incidentally, until the number of travel pulses corresponding to the distance L _D is input, if the procedure advances to Step S _15, only the rise without lowering is performed. In step S _17, the solenoid valve 44, the current flows through the solenoid coil L _44, is energized. Therefore, the stopping device 6 is operated and the piston rod 5 is stopped, so that the upper surface drying nozzle 2 is kept at a constant height. These steps S _{15 to} S
₁₇ is repeated in step S ₁₈ until the output signal Yes of the start-position detecting means D _5.

Therefore, in FIG.
When the drum 1 reaches the position 1d from the position 1b, the upper surface drying nozzle
Le 2 is height H₁Starts to rise from. And height H_Two
~ H _FiveThrough height H₆Reach When it reaches position 1e
The descent is instructed, but the start of the descent is delayed,
The descent begins at the distance L_DAfter going on
You. When returning to the start position 1a, the start position is detected.
Means D_FiveOutputs a signal, the running frame 1 stops, and
The surface drying nozzle 2 returns to the upper limit position.

[0030] In the above embodiment, the step S _12, the
The vehicle body upper surface detecting means of the present invention for detecting the upper surface of the vehicle body in front of the lower end of the upper surface drying nozzle 2 in the relative movement direction of the frame 1 with respect to the vehicle in a non-contact manner. The control means of the present invention for controlling the lifting / lowering means Dt based on the output of the vehicle body upper surface detecting means (that is, step S ₁₂ ) so as to delay the lowering of the body and prevent the upper surface drying nozzle 2 from contacting the upper surface of the vehicle body. I have.

Next, effects specific to the above-described embodiment of the present invention will be described. According to the embodiment of the invention described above, the cylinder 4
The stopping device 6 provided at the stop the piston rod 5. Therefore, the upper surface drying nozzle 2 is
Is fixed at the height when 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 in detail, the present invention is not limited to the above-described embodiments, and various designs may be made without departing from the present invention described in the appended claims. It is possible to make changes.

For example, instead of measuring the vehicle height by detecting the vehicle when the traveling frame 1 goes forward and performing the drying process when returning, the drying process can be performed while measuring the vehicle height when going forward. In this case, in the flowchart of FIG. 9, in step S _11, the distance Lo from the running pulse count A
Is subtracted, and the number of traveling pulses corresponding to the distance Lu is added to obtain the number of traveling pulses X.

The running pulse generating means D ₁ and the elevating pulse generating means D ₃ are formed by a proximity switch composed of a disk having a plurality of convex protrusions on the outer periphery at equal intervals and a sensor coil. It can be composed of a disc-shaped magnet and a reed switch, and any so-called encoder can be used. Further, when the traveling speed of the traveling frame 1 is constant, the travel pulse generator D ₁ may be a pulse generator having a constant cycle.

The number of photoelectric switches constituting the vehicle detecting means D ₂ can be increased or decreased as required. In this case, if there is a risk of malfunction due to the proximity of each photoelectric switch, the light sources of the projectors La corresponding to the odd-numbered and even-numbered photoelectric switches are separately lit, and the photoelectric switch in each case is turned on. the combined output signal of the switch may be the output signal of the vehicle detection unit D _2.

The uppermost photoelectric switch may be used for detecting the maximum vehicle height at which drying can be performed. In that case,
The entire operation of the vehicle body cleaning device is stopped by the output signal of the photoelectric switch.

The lowermost photoelectric switch 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 controls the external washing process such as water injection. For example, it can be used as a signal for switching the traveling frame 1 from going forward to going backward.

[0038] Further, the storage means M in the stores the data H corresponding to the vehicle height, which is the output signal of the vehicle detection unit D _2, instead of converting the data H during the drying process to read the lifting pulse number Sn, the may be stored data H corresponding to the vehicle height, which is the output signal of the vehicle detection means D ₂ are converted into the lifting pulse number Sn in the storage means M. Furthermore, in the storage means M stores the data H corresponding to 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 process, the stored number of lifting pulses Sn may be read.

[0039]

As described above, according to the present invention, in a vehicle body drying apparatus, a lifting means for raising and lowering an upper surface drying nozzle, and a vehicle body on the front side of the frame relative to the vehicle relative to the lower end of the upper surface drying nozzle. A vehicle body upper surface detecting means for detecting the upper surface in a non-contact manner, and a control means for controlling a lifting / lowering means based on an output of the vehicle body upper surface detecting means so as to delay the lowering of the upper surface drying nozzle so that the upper surface drying nozzle does not contact the vehicle upper surface. Therefore, even if there is a protrusion on the upper surface of the vehicle body, it is possible to avoid contact of the upper surface drying nozzle with the protrusion.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a side view of a main part.

FIG. 3 is a diagram showing a configuration of a stopping device.

FIG. 4 is a diagram showing an air and hydraulic circuit;

FIG. 5 is a block diagram of a control system.

FIG. 6 is a diagram showing vehicle height measurement by vehicle detection when the traveling frame moves forward.

FIG. 7 is a flowchart showing the operation of the control means in the case of FIG. 6;

FIG. 8 is a diagram illustrating a drying process performed when the traveling frame returns.

FIG. 9 is a flowchart showing the operation of the control means in the case of FIG. 8;

[Explanation of symbols]

Step as the running frame 2 upper surface drying nozzle 50 control unit Dt elevating means S ₁₂ the vehicle body upper surface detecting means as one frame

Claims (1)

(57) [Claims] 1. An upper surface drying nozzle (2) on a frame (1)
The upper surface drying nozzle (2) follows the body upper surface shape by moving the frame (1) and the vehicle relative to each other so that the upper surface drying nozzle (2) follows the vehicle body upper surface shape. 2) lifting means (D)
t), a body upper surface detecting means (S ₁₂ ) for detecting the upper surface of the body in front of the lower end of the upper surface drying nozzle (2) in the direction of relative movement of the frame (1) with respect to the vehicle in a non-contact manner; delaying the descent of (2), it said not to contact the upper surface drying nozzle (2) is a vehicle body upper surface body top surface detecting means and the elevating means based on the output of the (S ₁₂₎ (Dt)
And a control means (50) for controlling the vehicle body.