JPH0443017B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Industrial Field of Application The present invention relates to a lifting/lowering operation control device for a top brush for a car wash installed in a gas station or the like.

(2) Conventional technology In conventional car wash machines, the upper brush for washing the upper surface of a vehicle such as an automobile is rotatably supported on a gate-shaped traveling frame that can straddle the vehicle and travel back and forth in the front and rear directions. has been done.

The upper surface brush needs to constantly contact and brush the upper surface of the vehicle, which partially has different heights. Therefore, the upper surface brush is supported by the gate-shaped traveling frame so as to be movable up and down so as to follow the shape of the upper surface of the vehicle.

Hitherto, as this type of lifting device for the upper surface brush, the device described in, for example, Japanese Patent Publication No. 50-5870 has been known.

(3) Problems to be Solved by the Invention In the method described in Japanese Patent Publication No. 50-5870, the upper brush constantly moves up and down repeatedly for brushing cleaning, so the distance between the upper brush and the top surface of the vehicle must be reduced. Difficult to maintain constant.
Therefore, there is a problem in that it is difficult to maintain the pressure of the upper surface brush against the upper surface of the vehicle at a predetermined value, and it is difficult to perform uniform brushing cleaning.

The present invention was made in view of the above circumstances, and
The purpose is to maintain the pressure of the upper surface brush against the upper surface of the vehicle at a predetermined value.

B. Structure of the Invention (1) Means for Solving the Problems In order to achieve the above-mentioned object, the upper surface brush lifting operation control device for a car wash machine according to the present invention has the structure shown in FIG. 1 (diagram corresponding to claims). There is. That is, the present invention provides an upper brush B rotatably supported on a gate-shaped traveling frame A that can reciprocate in the front-rear direction (left-right direction in FIGS. 1 and 3) across the vehicle V. and a lifting drive device C that drives the top brush B up and down, and by controlling the lifting drive device C, the top brush B is moved up and down so as to follow the shape of the top surface of the vehicle. The upper surface brush raising/lowering operation control device includes a traveling frame position detecting means _P1 for detecting a position X' of the traveling frame A in the longitudinal direction; _A predetermined position X (=
A vehicle top surface position detection means P ₂ that detects the vehicle top surface position Z _V at X'+X _A ), and a top brush position detection means P ₃ that detects the actual top brush position Z';
Detection signals X′ of each of these detection means P ₁ , P ₂ , P ₃ ,
A control signal output means D is provided for outputting a control signal for the elevating drive device C from Z _V and Z', and the control signal output means D includes the traveling frame position detecting means P ₁ and the vehicle top surface position detecting means. Predetermined position X of traveling frame A from detection signal X' of P ₂ and Z _V
an upper surface brush target position calculating means _D1 that outputs the upper surface brush target position Z at a predetermined position and an output signal forming means _D2 for forming the output signal.

(2) Function The upper surface brush elevating operation control device for a car wash machine according to the present invention having the above-mentioned configuration includes a traveling frame position detecting means _P1 for detecting the position of the traveling frame A, and a means for detecting the position of the traveling frame A from the upper surface brush B to the traveling frame A. The vehicle top surface position detector _P2 is provided in front of the vehicle by a predetermined length of the brush-detector distance _XA . Therefore, running frame A
The height Z _V of the top surface of the vehicle brushed by the top brush B when the traveling frame A reaches a predetermined position is a position X'(X' = X - X _{A )} before the traveling frame A reaches the predetermined position ) is detected.

and the upper surface brush target position output means D ₁
Based on the value of the vehicle top surface position _ZV detected when the traveling frame A is at the position X', the upper surface brush target position Z when the traveling frame A is at the predetermined position X is output. be done. The output signal forming means _D2 outputs the actual upper brush position (position detected by the upper brush position detecting means) Z' at a predetermined position X of the traveling frame A and the upper brush target position output means _D1. A control signal corresponding to the difference from the upper surface brush target position Z outputted from the upper surface brush target position Z is outputted to the lifting drive device C.

The lifting drive device C that lifts and lowers the position of the upper brush B is configured such that when the traveling frame A is at a predetermined position X, the difference between the upper brush position Z' and the upper brush target position Z is 0. controlled so that

(3) Example Next, an example of the present invention will be described with reference to FIGS. 2 to 9. Note that the same reference numerals are used for the same components as in FIG. 1 described above, and redundant detailed explanation will be omitted.

In Figs. 2 to 4, the car wash U is equipped with a gate-shaped running frame A that straddles the vehicle, and a pair of front and rear wheels 1 provided on this running frame A are connected to a pair of left and right running rails extending along the front-rear direction. It is placed on 2. Traveling drive devices M capable of driving the front wheels 1 are provided on the left and right sides of the traveling frame A.
are each composed of a traveling motor 3, a driving sprocket 4, a chain 5, a driven sprocket 6, etc. By operating the traveling drive device M, the traveling frame A can travel along the traveling rail 1 in the front-rear direction (left-right direction in FIG. 4).

Further, at the bottom of the traveling frame A, there is a limit switch (i.e., a traveling frame reference position detector) L ₁ that detects that the traveling frame A is at a reference position A ₀ in the longitudinal direction (the position shown in FIG. 4). The running frame reference position detector _L1 is operated by a dog 7 disposed at a predetermined position along the running rail 1. The traveling frame reference position detector _L1 detects that the traveling frame A is at the reference position.
It turns on when it is at A ₀ and turns off when it is away from the reference position A ₀ .

A plurality of protrusions made of a magnetic material are arranged at equal intervals on the outer periphery of the disc 8 which rotates integrally with the drive sprocket 4. A proximity switch 9 made of a sensor coil or the like is provided opposite the outer periphery of the disc 8. The disk 8 and the proximity switch 9 constitute a travel distance detecting pulse generator P _1a in this embodiment. Then, a traveling frame position detecting means _{P 1 (} a second (see figure) is configured.

This traveling frame position detecting means P ₁ detects the traveling distance by detecting the traveling distance while the traveling frame A is traveling forward (going forward) away from the reference position A _{0 .}
(See Figure 3) The generated pulses are counted as positive, and while the vehicle is marching (go-around), it is counted as negative. Therefore, the position of the traveling frame A in the longitudinal direction (that is, the distance from the reference position _A0 ) is detected based on the counted number of pulses.

The gate-shaped traveling frame A has floodlights 1 disposed on its left and right legs at positions facing each other.
Vehicle sensor 10 consisting of 0a and light receiver 10b
are arranged in multiple rows at predetermined intervals in the vertical direction. The light projectors 10a and the light receivers 10b of the vehicle sensors 10 arranged in large numbers in the vertical direction are arranged alternately in the vertical direction. That is, if the light emitter 10a of the vehicle sensor 10 disposed at a certain horizontal position is disposed on the left leg of the traveling frame A, and the light receiver 10b is disposed on the right leg, The light emitter 10a and the light receiver 10b of the vehicle sensor 10 are arranged in opposite positions. The reason for this arrangement is as follows. That is, if all the projectors 10a of the vehicle sensors 10 arranged in a large number in the vertical direction are arranged on one of the left and right legs, and all the light receivers 10b are arranged on the other leg, each vehicle sensor 10, 10
When the vertical distance between the receivers 10b and 10b is small,
However, there is a risk that an erroneous detection signal may be generated by receiving not only the light from the light projector 10a located opposite to the light receiver 10b, but also the light from the light projectors 10a adjacent above and below it. Therefore, in order to prevent generation of this erroneous detection signal, in the vehicle sensors 10 which are arranged vertically adjacent to each other, the light projector 10a and the light receiver 10b are arranged in opposite positions.

A large number of vehicle sensors 10 are arranged in the vertical direction.
When a vehicle is present between the light emitter 10a and the light receiver 10b, the light receiver 10b of the vehicle sensor 10, which is blocked by the vehicle, is turned off, and the vehicle sensor 10 located above the top surface of the vehicle and the left and right window glass of the vehicle are blocked. The light receivers 10b on both sides are turned on. Therefore, the number of light receivers 10b that are above the top surface of the vehicle and are turned on (that is, the number of light receivers 10b that are above the topmost light receiver 10b that is turned off) is counted. As a result, the number of vehicle sensors 10 present from the topmost vehicle sensor 10 to the top surface of the vehicle can be detected. By the way, since the vehicle sensors 10, 10, . Therefore, the distance from the reference position Z ₀ located a predetermined distance above the vehicle top surface to the vehicle top surface, that is, the vehicle top surface position Z _V can be detected. This vehicle top surface position Z _V is a value corresponding to the height of the vehicle.

In this embodiment, a vehicle detector P _2a (see FIG. 3) is constructed from the plurality of vehicle sensors 10, and a vehicle detector P _2a (see FIG. 3) is connected to a sensor located above the top surface of the vehicle and turned on. The vehicle top surface position detecting means _P2 uses a microcomputer 40 (see FIG. 6), which will be described later, which has a function of counting the number of light receivers 10b.
(See Figure 2).

Vertical guide rails 11 are arranged on the left and right legs of the gate-shaped traveling frame A, and a lower sprocket 12 is rotatably supported at the lower end of the guide rails 11. .

The guide roller 1 is controlled by the guide rail 11.
A truck 13 having 3a and 13a is supported so as to be movable up and down.

Further, at the upper end of one of the guide rails 11, 11, there is a limit switch (i.e., a truck reference position detector) for detecting that the truck 13 is at the vertical reference position Z ₀ (the position shown in FIG. 3). ) L ₂
is installed, and its trolley reference position detector L ₂
is operated by a dog 14 (see FIG. 3) disposed at a predetermined position on the upper end of the truck 13. and the bogie reference position detector
_L2 is turned on when the truck 13 is at the reference position _Z0 , and turned off when it is away from the reference position _Z0 .

Support shafts 15, 15 are protruded from the upper ends of the carts 13, 13, which are supported by the left and right guide rails 11, 11 so as to be movable up and down, so as to face each other. A cylindrical rotating portion 16 is rotatably supported on each of these support shafts 15, 15. As shown in FIGS. 3 and 5, a spring arm 17 is protruded from the rotating member 16, and a return spring 18 is disposed between the spring arm 17 and the lower end of the truck 13. There is.

Further, as shown in FIG. 5, one of the left and right rotating members 16, 16 (see FIG. 3) (the right side in FIG. 3) has an actuator 19,
20 are provided protrudingly, and these actuators 19, 2
Between 0 and 0, there is a swing detector consisting of a limit switch.
L ₃ is installed. Then, the rotating member 1
When 6 rotates more than a predetermined amount, the limit switch
L ₃ is activated and configured to stop the operation of the entire car wash machine.

Further, as shown in FIG. 3, rotating members 16, 1 supported by the left and right carts 13, 13
Swing arms 21 and 21' are fixed to 6, respectively. A brush shaft 22 is rotatably supported at the lower ends of the swing arms 21, 21', and an upper brush B is fixedly supported on this brush shaft 22.

The swing arms 21, 21' are held in a position where their lower ends are always hanging down in the vertical direction by the elastic force of the return spring 18 and the gravity of the upper brush B. The upper brush B in this hanging position and the vehicle sensor 10 are separated by a predetermined distance X _A (see FIGS. 2 and 4) in the longitudinal direction.

An upper brush rotation motor 23 is supported on one of the swing arms 21 and 21', and the rotational force of the upper brush rotation motor 23 is applied to a motor disposed within the swing arm 21. Drive sprocket 2
4, the power is transmitted to the upper brush B via the chain 25, the driven sprocket 26, the brush shaft 22, etc.

Above the left and right guide rails 11, 11, a through shaft 28 extending left and right is rotatably supported. Upper sprockets 29, 29 are fixed to the portion of the through shaft 28 located above the carriages 13, 13. A chain 30 is wound between the upper sprocket 29 and the lower sprocket 12, and both ends of the chain 30 are connected to the truck 13.

A driven sprocket 31 is fixed to one end of the through shaft 28, and the driven sprocket 31 receives the rotational force of a lifting motor 32 equipped with a self-braking worm reduction gear as a driving motor for driving the driving sprocket 33 and the chain. 34 etc.

The elevating drive device C is constituted by the components indicated by the numerals 13, 28 to 34. and,
When the lifting motor 32 of the lifting drive device C is rotated, the upper surface brush B is driven up and down, and when it stops, it is configured to be stopped by self-braking of the worm reducer. That is, when the lifting motor 32 rotates, the through shaft 28 rotates via the drive sprocket 33, chain 34, and driven sprocket 31. When the through shaft 28 rotates, the truck 13 is driven up and down along the guide rail 11 via the upper sprocket 29, the lower sprocket 12, and the chain 30. As the truck 13 is driven up and down, the upper brush B supported by the truck 13 is also driven up and down. In this way, the upper brush B moves up and down together with the truck 13, so when the truck 13 is at the reference position _Z0 , the upper brush B is also at the reference position _Z0 .

Further, a disk 35 is fixed to one end of the through shaft 28, and a plurality of protrusions made of a magnetic material are arranged at equal intervals on the outer periphery of the disk 35.
A proximity switch 36 made of a sensor coil or the like is provided opposite the outer circumference of the disc 35. The disk 35 and the proximity switch 36 constitute a pulse generator P _3a for detecting the position of the upper surface brush in this embodiment. The top brush position detection means P ₃ is constituted by this top brush position detection pulse generator P _3a and a pulse counting means realized by a microcomputer 40 which will be described later.

This upper surface brush position detecting means P ₃ is connected to the upper surface brush position detecting pulse generator P _3a while the cart 13 is moving downward away from the reference position Z ₀ .
The pulses that occur are counted as positive, and while they are rising, they are counted as negative. Therefore, the position Z (that is, the distance from the reference position _Z0 ) of the carriage 13 and the upper brush B supported thereon is detected based on the counted number of pulses.

In addition, the gate-shaped traveling frame A is provided with the upper brush B.
In addition, a side brush device having a pair of left and right side brushes, a drying device (not shown), a control panel (not shown) for controlling the operation of these devices, and the like are provided. The control panel (not shown) is provided with a car wash start switch _SW (see FIG. 6) and the like. Note that the side brushes, drying device, control panel, etc. (not shown) are conventionally known ones, and therefore their explanations will be omitted.

As shown in FIG. 6, the control device K of the car wash machine U
is car wash work start switch _SW , pulse generator
It is composed of P _1a , P _3a , detectors P _2a , L ₁ , L ₂ , L ₃ and a microcomputer 40 .

The microcomputer 40 includes a central processing unit 41 that performs various calculations, a read-only memory 42 that stores programs and fixed data, a random access memory 43 that is used for storing variable data and a work area, an input interface 44, and an output. It is composed of an interface 45 and a bus 46 that connects them.

The input interface 44 includes the above-mentioned car wash work start switch _SW , a travel distance detection pulse generator P _1a , a vehicle detector P _2a , a top brush position detection pulse generator P _3a , and a travel frame reference position detector. _L1 ,
The output signals of the bogie reference position detector _L2 and the swing detector _L3 are input.

The output interface 45 is connected to the travel motors 3, 3, the upper brush rotation motor 23, the lifting motor 32, and the like.

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

First, as shown by the solid line in FIG. 7, in a state where the gate-shaped traveling frame 2 is positioned in front of the vehicle V stopped between both traveling rails 2, 2 (the position shown in FIG. 4), When the car wash operation start switch S _W on the control panel is pressed, the control device K operates according to the flowchart shown in FIG. 8.

In step _S1 of FIG.
3 and the top brush rotation motor 23 rotate normally.
Then, the upper brush B rotates and the traveling frame A begins to move forward. At this time, the traveling frame reference position detector _L1 is turned off.

In step _S2 , the microcomputer 4
0 reads the position X' of the traveling frame A. This reading is performed by transmitting the output pulses of the traveling distance detection pulse generator P _1a from the time when the traveling frame reference position detector L ₁ is turned off to the microcomputer 4.
This is done by counting by 0. That is, since the traveling distance detection pulse generator P _1a generates a pulse every time the traveling frame A moves a predetermined distance, by counting these pulses, the longitudinal position X' of the traveling frame A can be determined. is detected.

In step _S3 , the vehicle top surface position _ZV is read. This reading is done by the vehicle detector
Receiver 1 receiving light among the receivers 10b of P _2a
This is done by counting the number of 0b by the microcomputer 40. The vehicle top surface position Z _V when the traveling frame A is at position X' is the same as the vehicle top surface position Z V when the traveling frame _A is at a position _X (= This is the position brushed by the upper brush B. The vehicle upper surface position _ZV at the position X of the traveling frame A is indicated by △ in FIG.

Next, in step _S4 , the brush-detector distance X _A and the set value Z _A of the brush-vehicle top surface distance are read. These values X _A and Z _A are stored in advance in a nonvolatile random access memory RAM or read only memory ROM. The brush-vehicle top surface distance setting value Z _A is the vehicle top surface position Z _V
This is the setting value for the distance from the top brush B to the top brush B located above it.

Next, in step _S5 , the traveling frame A at the current position X' moves by _a predetermined distance XA and
Calculate the upper brush target position Z (=Z _V +Z _A ) when the brush reaches the position X _A ). The target position Z of the upper surface brush at the position X of the traveling frame A based on this calculation result is indicated by ◇ in FIG.

Next, in step _S6 , the value of the position X (=X'+X _A ) of the traveling frame A corresponding to the upper brush target position Z is corrected based on the slope of the upper surface of the vehicle. This corrected upper brush target position Z is the ninth
It is indicated by a circle in the figure. The slope of the vehicle top surface is determined by the change in the vehicle top surface position _ZV when the traveling frame A moves by a unit length ΔX (see FIG. 9).
In the correction of the position X based on the gradient, when the gradient increases as it goes forward, the value of the position X is decreased by an amount corresponding to the magnitude of the gradient. For example, the windshield F of the vehicle V shown in FIG.
, the value of the position X (=X'+X _A ) of the traveling frame A corresponding to the upper surface brush target position Z is 2△
It is decreased by X. Furthermore, in a portion of the rear surface of the vehicle V shown in FIG. 9 with a large downward slope, the position
The value of (=X′+X _A ) is increased by 4ΔX.

Next, in step _S7 , X is the address and Z is the address.
is stored in the random access memory 43 as data.

In step _S8 , the current position X of traveling frame A is read in the same manner as in step _S2 , and step
At _S9 , Z is read from the random access memory 43 using the X read at step _S8 as an address.

Next, in step _S10 , the actual position Z' of the upper brush B is read.

In step _S11 , it is determined whether the rocking detector _L3 is on or off. If the answer is YES, it means that a situation in which the swinging angle of the swinging arms 21, 21' is too large is desired to occur, so the car washing operation is stopped in step _S12 . If the answer in step _S11 is NO, the process advances to step _S13 .

In step _S13 , it is determined whether the actual position Z' of the upper brush B is greater than the target upper brush position Z. In this embodiment, the target position Z of the upper brush B and the actual position Z _' of the upper brush B are the distances from the reference position _Z0 above the vehicle. This means that the position Z' is located below the upper surface brush target position Z.

Therefore, if the answer is YES in step _S13 , the upper brush B is raised in step _S14 . This is done by rotating the lift motor 32.

If the answer to step _S13 is NO, step
In _S15 , it is determined whether the actual position Z' of the upper brush B is smaller than the target upper brush position Z. If YES in step _S15 , it means that the actual position Z' of the upper brush B is higher than the target position Z of the upper brush. Therefore, in this case, the upper brush B is lowered in step _S16 .

If the answer is NO in step _S15 , Z'=Z, and therefore, in step _S17 , the upper brush B is stopped.

Next, in step _S18 , it is determined whether or not to go. This determination is, for example, 1 when the car wash work start switch _SW is turned on, 1 while the travel frame A travels a predetermined distance until the end of the outbound trip, and 0 thereafter. This is done using the flag register for In addition, the determination of whether this is a forward or backward movement is made when the traveling frame A is from position A ₀ in Figure 7.
This can also be done by using a limit switch, etc. that is activated when the vehicle has traveled a predetermined distance to _A1 and completed the outbound trip.

If YES in step _S18 , the process returns to step _S1 . Then, during the outbound trip, the above step _S1 is performed.
~Repeat step _S18 .

Step S ₁₈ , if no, step S ₁₉
It will be determined whether or not to return. This step
The determination in _S19 can be made by a flag register for homeward travel determination, which becomes 1 when the outbound travel is completed, 1 while the vehicle travels a predetermined distance, and 0 otherwise.

If yes on step S ₁₉ , step S ₂₀
In this step, the traveling motors 3, 3 and the upper brush rotation motor 23 are rotated in the opposite direction. Then,
Car wash U begins its go-around. Then, the process returns to step _S8 . Then, during the go-around, the above step _S8
~Repeat S ₁₉ .

If the answer is NO in step _S19 , the travel motors 3, 3 and the top brush rotation motor 23 are stopped in step _S21 .

Next, in step S22, the upper brush B is raised to the reference position _Z0 , and then the car washing operation is completed.

Although the embodiments of the brush device for washing the top surface of a vehicle in a car wash machine according to the present invention have been described in detail above, the present invention is not limited to the above embodiments, and does not deviate from the present invention as set forth in the claims. It is possible to make various minor design changes without any problems.

For example, in the embodiment described above, the upper brush B was used also when going back, but when going back, the upper brush B was used.
Instead, it is possible to control the warm air blowing nozzle of the dryer to move up and down. Also,
Instead of measuring the value of the vehicle top surface position _ZV from a reference position above the vehicle top surface, it is also possible to measure the value using the height of the ground as the reference position. Furthermore, it is also possible to use optical encoders for the travel distance detection pulse generator P _1a and the top brush position detection pulse generator P _3a . Furthermore, instead of using the upper surface brush target position calculation means _D11 , the upper surface brush target position output means _D1 uses a memory that stores the upper surface brush position Z set according to the value of the vehicle upper surface position _ZV . It is also possible to provide a configuration such that when the value of the vehicle top surface position _ZV from the vehicle top surface position detection means _P1 is inputted, the top surface brush target position Z is read out.

C. Effects of the Invention According to the present invention described above, since the upper surface brush can be maintained at a predetermined distance from the vehicle upper surface position, the pressure of the upper surface brush against the vehicle upper surface can be maintained at a predetermined value. Therefore, uniform brushing cleaning of the upper surface of the vehicle can be performed.

[Brief explanation of drawings]

Fig. 1 is a diagram corresponding to the claims of the present invention, Fig. 2 is an overall schematic diagram of an embodiment of the invention, Fig. 3 is a front view of an embodiment of the invention, and Fig. 4 is a main part of the embodiment. A side view, FIG. 5 is a view along the line V-V in FIG. 3, FIG. 6 is an explanatory diagram of the configuration of the control device of the same embodiment, FIG. FIG. 9 is a flowchart of the control device of the embodiment, and is an explanatory diagram of the relationship between the vehicle top surface position and the top surface brush target position in the same embodiment. A...Traveling frame, _A0 ...Reference position, B...Top brush, C...Elevating drive device, D...Control signal output means, _D1 ...Top brush target position output means,
D ₁₁ ... Upper surface brush target position calculation means, D ₁₂ ...
Memory means, D ₂ ... Output signal forming means, Z ₀ ... Reference position, P ₁ ... Traveling frame position detection means, P _1a ... Pulse generator for detecting traveling distance, P ₂ ... Vehicle top surface position detection means , Z _2a ... vehicle top position detector, P ₃ ...
...Top brush position detection means, P ₃ ...Pulse generator for detecting top brush position, U...Car wash machine, V...
Vehicle (automobile), X _A ...Distance between brush and detector,
Z: Target position of the upper brush, Z′: Actual upper brush position, Z _A : Distance between the brush and the top of the vehicle.

Claims (1)

[Scope of Claims] 1. An upper brush B rotatably supported on a gate-shaped traveling frame A that can reciprocate in the longitudinal direction across the vehicle V, and a lifting drive that drives the upper brush B up and down. A top brush elevating operation control device for a car wash machine, which is provided with a device C and controls the elevating drive device C to raise and lower the upper brush B so as to follow the shape of the top surface of the vehicle. a traveling frame position detecting means _P1 for detecting the longitudinal positions X _' , A vehicle top surface position detection means P ₂ that detects _the vehicle top surface position Z _V at _a predetermined position A control signal output means D is provided for outputting a control signal for the lifting drive device C based on the detection signals of _P2 and _P3 , and the control signal output means D is configured to detect the traveling frame position detection means _P1 and the vehicle top surface position. _Upper brush target position output means _D1 outputs the upper brush target position Z when the traveling frame A is at the predetermined position A top brush lifting/lowering operation control device for a car wash machine, comprising an output signal forming means _D2 for forming a control signal according to the difference between the position Z' and the top brush target position Z. 2 The traveling frame position detection means _P1 includes a traveling frame reference position detector _L1 that detects that the traveling frame A is at the reference position _A0 , and detects the travel distance of the traveling frame A from the reference position _A0 . The upper surface brush lifting/lowering operation control device for a car wash machine according to claim 1, comprising a traveling distance detecting means. 3 The travel distance detection means is a travel distance detection pulse generator _P1a that generates a pulse every time the travel frame A travels a predetermined distance from the reference position _A0 .
and a travel distance detection counter that counts the output pulses of the travel distance detection pulse generator _P1a . 4. The upper surface brush lifting/lowering operation control device for a car wash machine according to claim 3, wherein the travel distance detection counter is constituted by a microcomputer 40. 5. The top brush position detection means P3 includes a top brush reference position detector _L3 that detects that the top brush B is at the reference position _Z0 , and a top brush reference position detector _L3 that detects that the top brush B is at the reference position Z0, and detects the vertical distance of the top brush B from the reference position _Z0 . Claim 1 comprising a vertical distance detection means for detecting
5. The upper surface brush lifting/lowering operation control device for a car wash machine according to any one of items 1 to 4. 6. The lifting distance detection means includes a lifting distance detection pulse generator _P3a that generates a pulse every time the upper brush moves up or down a predetermined distance from the reference position _Z0 .
and a lifting distance detection counter that counts the output pulses of the lifting distance detection pulse generator _P3a . 7. The upper surface brush elevating operation control device for a car wash machine according to claim 6, wherein the elevating distance detection counter is constituted by a microcomputer 40. 8 The vehicle top surface position detection means P2 is a vehicle detector _P2a in which a large number of vehicle detectors 10 each consisting of a light projector 10a and a light receiver 10b arranged in a vertical row are arranged to face each other with the vehicle in _between. and floodlight 10
and a vehicle top surface position detection counter that counts the number of light receivers 10b that receive light from a. Actuation control device. 9. The upper surface brush elevating operation control device for a car wash machine according to claim 8, wherein the vehicle upper surface position detection counter is constituted by a microcomputer 40. 10 In the vehicle detectors 10 arranged in multiple rows in the vertical direction, the positions of the light projectors 10a and the light receivers 10b, which are arranged opposite to each other with the vehicle in between, are arranged alternately along the vertical direction. Range 9th
2. The upper surface brush lifting/lowering operation control device for a car wash machine as described in 2. 11 The upper surface brush target position output means D ₁ is
upper surface brush target position calculation means _D11 for calculating the upper surface brush target position Z at a predetermined position X of the traveling frame _A from the detection signals of the traveling frame position detecting means P1 and the vehicle upper surface position detecting means _P2 ; 11. The upper surface brush elevating and lowering operation control device for a car wash machine according to claim 1, further comprising a storage means _D12 for storing the upper surface brush target position Z at each predetermined position X. 12 The upper surface brush target position calculation means D ₁₁ is
A patent claim configured to calculate the upper brush target position Z by the following equation (a) when the upper brush target position when the traveling frame A is at a predetermined position X is represented by Z. The upper surface brush lifting/lowering operation control device for a car wash machine according to item 11. Z=Z _V +Z _A ... (a) However, Z _V ... Vehicle top surface position detected when the traveling frame is at position (X'=X-X _A ), X _A ... Between the brush and the detector Distance, Z _A ... Distance set to be provided between the top surface of the vehicle and the top surface brush,