JP2668339B2 - Vehicle upper surface treatment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an upper surface treatment apparatus for a vehicle, which brushes the upper surface of a vehicle body with a rotating top brush or polishes the upper surface with a rotating top buff.

[0002]

2. Description of the Related Art Conventionally, a guide rail suspended and supported by a frame, a bogie guided by the guide rail and capable of ascending and descending, a top brush provided rotatably on the bogie, and a top brush A rotary drive motor for rotating the drive, a lifting drive motor for lifting and lowering the bogie, and a swing for detecting a swing angle from a neutral position of the guide rail to detect a contact state between the top brush and the upper surface of the vehicle body. There is known a vehicle top surface cleaning device that includes a detection means, and controls the elevation drive motor based on the detection of the swing detection means to brush and clean the vehicle body top surface of the vehicle with the top brush (for example, Japanese Patent Laid-Open No. 5-
254402).

Further, instead of detecting the contact state between the top brush and the upper surface of the vehicle body of the vehicle by the swing detecting means, a detecting means for detecting the current, electric power, or rotation speed of the rotary drive motor for rotating the top brush. An upper surface cleaning device for a vehicle is also known, in which the upper and lower drive motors are controlled based on the detection of the detection means to brush and clean the upper surface of the vehicle body of the vehicle with the top brush (for example, JP-A-59).
-106350).

[0004]

The above-described conventional upper surface cleaning apparatus for a vehicle, for example, when brushing a passenger car type vehicle from the front end to the rear end, when the top brush moves from the ceiling surface to the rear glass surface, makes a predetermined contact. Since it is delayed to detect that the top brush is separated from the upper surface of the vehicle body than the state, if the relative motion speed between the frame and the vehicle is high, the cleaning effect on the upper portion of the rear glass surface (indicated by G in FIG. 4) is There was a problem that became insufficient. Also, in the case of brushing cleaning from the rear end to the front end of the automobile, there is also a problem that the cleaning effect on the upper portion of the windshield (indicated by H in FIG. 5) becomes insufficient.

[0005] The present invention has been made in view of such circumstances, and even when the relative movement speed between the frame and the vehicle is high, the upper part of the downward slope following the ceiling of the vehicle can be effectively formed. Intended for processing.

[0006]

To achieve the above object of the Invention The present invention includes a vertically movable carriage along a lifting rails provided on the frame, the elevation drive motor for vertically driving the carriage, the carriage and rotatably provided processing body, a rotary driving motor for rotationally driving the processing member, a contact state detecting means for detecting the state of contact between the vehicle body upper surface of the processing member and the vehicle, the detection of the contact state detecting means based and control means for controlling the lifting drive motor, and said frame and the vehicle while rotating to relative movement in the longitudinal direction of the vehicle the processing body, along the processing member on the vehicle body upper surface of the vehicle Align to handle the vehicle body upper surface Te, the when the upper surface treatment apparatus for a vehicle, the lifting drive motor are torque motors, the control means for the contact state detecting means detects the excessively contact The descending drive motor is driven in the direction in which the processing member is raised, when not detected too contact
The lifting drive motor is driven in a direction in which the processing body is lowered.
So that the above-described processing is performed with the descending driving force of the elevating drive motor.
Stopping of the processing body when the body is pressed against the upper surface of the body
Indicates the contact between the lower drive force and the upper surface of the vehicle body
The feature is that it is performed in balance with the tactile force .

[0007]

[Operation] According to the above configuration, when the frame and the vehicle are relatively moved in the front-rear direction of the vehicle while rotating the processing body, the processing body moves along the upper surface of the vehicle body to process the upper surface of the vehicle body. . At this time, when the contact state detecting means detects that the processing body is in excessive contact with the upper surface of the vehicle body, the lifting drive motor is driven to raise the processing body, and the processing body contacts the upper surface of the vehicle body too much. If it is not detected that the processing body is lowered, the lifting drive motor is driven to lower the processing body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment in which the device of the present invention is applied to a so-called movable polishing device in which a frame is moved with respect to a vehicle to be treated will be described below with reference to the drawings.

FIG. 1 is a partially cutaway schematic front view of a mobile car washer equipped with the present invention, FIG. 2 is a side view of the car washer taken along the line 2 of FIG. 1, and FIG. 3 is an enlarged cross-sectional view taken along line 3-3 of FIG. 3, in which the traveling frame 1 of the mobile polish device W is formed in a gate shape so that the vehicle V can slip through. The drive wheels 3 and 3 and the driven wheels 4 are provided in front of and behind the left and right side frames 1 ₁ and 1 ₁ .
4 are rotatably mounted on respective shafts, and drive wheels 3, 3
It is connected via a speed reduction transmission mechanism to the travel motor 2, 2 is supported by the side frame 1 _1, 1 ₁ of the traveling frame 1. The driving wheels 3 and 3 and the driven wheels 4 and 4 are rotatably mounted on traveling rails 5 and 5 laid on an installation surface, and a traveling frame 1 drives the traveling motor 2 in forward and reverse directions. This enables forced reciprocating travel.

The traveling frame 1 also has a gate
A guide frame 6 formed in a mold is provided. This guide
The frame 6 is a left and right side frame of the traveling frame 1
1₁, 1 ₁A pair of left and right guides extending vertically along
Rails 8, 8 and ceiling frame 1 of running frame 1_Two
Extending in the left-right direction along the pair of guide rails
A connecting beam 9 that connects the upper ends of 8, 8 together in a bridge.
It is configured. Lower left and right of the guide frame 6,
The lower portions of the pair of guide rails 8, 8
The running of the running frame 1 is performed by the bearings 7 and
It is pivoted P, P so that it can swing up and down along the row direction
I have.

The combined beam 9 is formed of a round pipe, and a synchronizing shaft 11 is vertically passed through the inside of the combined beam 9.
Both ends of the synchronous shaft 11 are connected to the pair of guide rails 8,
8 are rotatably supported by bearings 10 provided at the upper end.

As is clearly shown in FIG. 3, the pair of guide rails 8 and 8 are formed by open channel-shaped channel members whose inner surfaces are opposed to each other in cross section. Guide plates 12, 12 extending in the vertical direction are fixed to the wall surface.

The pair of right and left guide rails 8, 8
Paired left that is guided by
Right bogie C₁, C_TwoAre respectively provided. Right and left carriage
C₁, C _TwoAre mounted on the bogie bodies 15, 15 in pairs.
The riders 13 and 13 and a pair of guide rollers 14 and 14
And the sliders 13 and 13 are provided on the guide plate 1.
It is formed in a fork shape so as to sandwich 2 and 12
It is slidable along the guide plates 12, 12, and
In addition, the guide rollers 14 and 14
Rollably engaged with the inner wall surface,
Dolly C₁, C_TwoIs a plan for right and left guide rails 8,8 respectively
It can be moved up and down inside.

A top buff support shaft 16 extending across the guide frame 6 is fixedly supported on the left and right trolleys C ₁ and C _2. The top buff support shaft 16 has a hollow rotary shaft 18 to which a top buff 17 is attached. Are rotatably inserted and supported. A driven sprocket 19 is fixed to one end (the right end in FIG. 1) of the rotating shaft 18. On one bogie C ₂ (right side in FIG. 1), the bogie main body 15 has a support frame 1.
5a are provided integrally, and this support frame 15a has
The rotational drive means of the top buff 17, ie, the motor 20
The driving sprocket 21 fixed to the driving shaft of the motor 20 is connected to the driven sprocket 19 via an endless chain 22. The forward / reverse driving of the motor 20 causes the top buff 17 and the rotating shaft 18 to rotate. It can rotate forward and backward.

At the bottom of the left and right guide rails 8, 8,
The right and left bogies C respectively₁, C_TwoLifting drive, lifting drive
A torque motor with reduction gears 31, 31 forming a pair as a means.
Are supported symmetrically.
The motors 23 and 23 are provided on the front surface of the traveling frame 1.
Connected to the voltage changing means VR. Torque motor
Drive sprockets 2 are provided on the driving shafts 23 and 23, respectively.
4 and 24 are fixed, while both ends of the synchronous shaft 11 are
The driven sprockets corresponding to the driving sprockets 24, 24
Prokets 25, 25 are fixed, and drive and
And between driven sprockets 24, 24 and 25, 25
Are chains 26, 2 housed in the guide rails 8, 8.
6 are suspended, and one of the chains 26, 26 is
The free end is the trolley C₁, C_TwoAttached to the underside of the
The other free end of them is the carriage C. ₁, C_TwoOn the top of
It is worn. Therefore, the torque motors 23, 23
According to the synchronous forward / reverse rotation driving of₁, C_TwoThe same
It can be driven up and down in anticipation.

On the outer side of the upper part of the left and right guide rails 8,
Each of the pulleys 27, 27 is rotatably supported and guide bars 29, 29 are fixed along the vertical direction thereof, and the guide bars 29, 29 are guided by the guide bars 29, 29 so that they can move up and down. Balance weights 28, 28 are inserted so as to be able to move up and down. One free end of the wire 30, 30 to be suspended around each pulley 27 and 27, are bound to the top surface of the balance weight 28, also those of the other free end of the carriage C _1, C ₂ It is bound to the upper surface.

Thus, the weight of the balance weights 28, 28 and the torque motors 23, 23 with the speed reducers 31, 31 are set.
Is set so that the frictional resistance of the lifting drive system of the top buff 17 and the weight of the top buff 17 are substantially balanced, whereby the torque motors 23 and 23 are inoperative and the top buff 17 is in a free state ( When the top buff 17 is not in contact with the upper surface of the vehicle, and when no more than a predetermined lifting force is applied to the top buff 17, the top buff 17 moves in any direction up and down due to frictional resistance of each part. Instead, the current position is maintained. On the other hand, when the top buff 17 comes into contact with the upper surface of the vehicle body and a lifting force that overcomes the frictional resistance is applied, the top buff 17 rises.

With such a setting, the top buff 17 can be held at the upper limit position even when the torque motors 23 are inactive while the polishing apparatus W is on standby. Further, compared to the case where the balance weights 28, 28 are made heavy and the top buff 17 is held at the upper limit position by this weight, the inertia weight when the top buff 17 is raised and lowered is small, so that the followability to the top surface shape of the vehicle body is good. Further, since the top buff 17 does not rise unnecessarily when the torque motors 23, 23 are not operated, the drive control of the torque motors 23, 23 when following the top surface shape of the vehicle body is facilitated.

In a middle portion of one guide rail 8 (left side in FIG. 1), a lower limit position detecting switch 32 for detecting a lower limit position of the top buff 17 and an upper limit position detecting switch 33 thereof are provided vertically. Provided at intervals,
These switches 32 and 33 are operated by magnets 34 provided on the carriage main body 15, respectively. Upper limit stoppers 53, 53 are fixed to the upper portions of the left and right guide rails 8, 8 and lower limit stoppers 54, 54 are fixed to the lower portions thereof. These stoppers 53, 53, 54, 5
4 is a top buff 17 by abutting with the bogie bodies 15 and 15.
The upper and lower limit positions are regulated.

The left and right guide movable spring receiving piece 55, 55 to the upper end of the rail 8, 8 are provided integrally, and on the ceiling frame portion 1 ₂ of the traveling frame 1, the movable spring receiving pieces 55,
55, fixed spring receiving pieces 56, 56 and 5
7 and 57 are fixed, and each movable spring receiving piece 5
5 and the fixed spring receiving pieces 56 and 57, a neutral spring 35 composed of a pair of coil springs as returning means.
_1, 35 ₂ are compressed state. The resilient force of these neutral springs 35 _1, 35 ₂ acts as a return force returning the guide rails 8,8 in a substantially vertical neutral position N. Above the combined beam 9 of the guide frame 6, the traveling frame 1 is provided with a detection switch 39, while the combined beam 9 is provided with an actuator 41 for operating the switch 39. The switch 39 is actuated by the actuator 41 when the guide frame 6 swings from the substantially vertical neutral position N to the front F or the rear R around the shaft support P by a predetermined angle or more. The angle can be detected. Thus, the switch 39 and the actuator 41 constitute a contact state detecting means of the guide frame 6.

On the front surface of the traveling frame 1, a traveling position detecting means 42, a start switch 48, a control means 47 for controlling the car washer W, and a voltage changing means V for the torque motor 23 are provided.
R and the like are collectively arranged, and the traveling position detecting means 4
Reference numeral 2 denotes traveling by adding the pulse of the rotary encoder 45 from when the start position detection switch 43 provided on the traveling frame 1 is separated from the operation cam 44 in the case of going forward and subtracting in the case of going backward. The running position from the start position of the frame can be detected, and a conventionally known one is used. A photoelectric sensor for detecting the rear end of the vehicle V to be polished is located forward of the rotation center of the top buff 17 when the guide rails 8 and 8 are at the neutral position N at a lower front portion of the traveling frame 1. The light emitter 46A and the light receiver 46B of the sensor 46 are fixed. Further, stop position indicators 50, 50 indicating the stop positions of the front wheels of the vehicle V to be polished are fixed on the installation surface between the traveling rails 5, 5.

Reference numeral 49 in the drawing denotes a side buff for polishing the side surface of the vehicle.

Next, the operation of the embodiment of the present invention will be described mainly with reference to FIGS.

FIG. 4 is a polishing process diagram of the upper surface of the vehicle body when the traveling frame 1 is going forward, and FIG.
6 is a polishing process diagram of the upper surface of the vehicle body when the vehicle goes home, FIG.
Is a flowchart.

[0025] The running frame 1 is stopped at a start position (FIG. 4, left end position). This position is detected when the start position detection switch 43 is operated by the cam 44. If you press the start switch 48 here,
Due to the rotation of the motor 20, the top buff 17 at the upper limit position (a) is rotated forward (rotation in the counterclockwise direction in FIG. 4), and the elevating torque motors 23 are driven to rotate forward with the first voltage. The top buff 17 descends from the upper limit position (a). When the top buff 17 is lowered to the lower limit position (b), the torque motors 23 are disabled by the operation of the lower limit detection switch 32, the top buff 17 stops lowering, and the traveling motors 2, 2 rotate forward. The driving of the traveling frame 1 starts going forward.

.. As the traveling frame 1 moves forward, the top buff 17 at the lower limit position reaches the position (c) and reaches above the front end of the hood surface of the vehicle V.

By the way, at this time, when the height of the hood of the vehicle V is relatively low as shown in the position (c) of FIG. 4, the guide frame 6 is held in the substantially vertical neutral position and the top buff 17 is held. The lower surface comes into contact with the front end of the hood of the vehicle V, and the top buff 17 rises along the guide rails 8 by applying a predetermined or more lifting force to the top buff 17 due to the contact reaction force at that time. Next, if the lifting force acting on the top buff 17 decreases to a predetermined value or less due to the elevation of the top buff 17, the elevation of the top buff 17 stops. In this manner, the top buff 17 moves along the hood surface of the vehicle V, and the top buff 17 can polish the hood surface with an appropriate surface pressure (steps S1 and S5).

As shown in FIG. 4C, in the case of the vehicle V 'having a relatively high bonnet surface, when the top buff 17 comes into contact with the front end of the hood, the contact reaction force causes the rearward reaction. pushed, thereby guiding frame 6 is swung backwards R (Fig. 4 left) axially supported P portion around a substantially vertical neutral position N against the return force by the neutral spring 35 _1, 35 _2. As a result, the switch 39 is actuated, and the lift torque motors 23, 23 are reversely driven with the second voltage by the control signal from the control means 47 which receives the detection signal therefrom, and the top buff 17 is forcibly moved up. It According Toppubafu 17 is raised by the raised operative, gradually reduces the contact reaction force pushing the Toppubafu 17 rearwardly R, the guide frame 6 is rocking in a direction back to the neutral position N by the return force by the neutral spring 35 _1, 35 ₂ Move. If the switch 39 becomes inoperative due to this swing, the elevating torque motors 23 and 23 become inoperative, and the top buff 17 is raised by the lifting force due to the contact reaction force.

[0029] If the top buff 17 comes to the position (d), which is the boundary between the hood and the front glass surface, from the position (c) due to the continuation of the traveling of the traveling frame 1, the top buff 17 comes into contact with the inclined surface of the windshield and becomes neutral. The switch 39 is operated by swinging to the left against the return force of the springs 35 ₁ and 35 ₂ . As a result, the torque motors 23, 23 are reversely driven with the second voltage via the control means 47, and the top buff 17 rises along the guide rails 8, 8. With the increase of this Toppubafu 17, Toppubafu 17 continue to decrease the contact reaction force that pushes backward R is, the guide frame 6 swings in the direction back to the neutral position N by the return force by the neutral spring 35 _1, 35 _2. When the switch 39 is deactivated due to this swing, the torque motors 23, 23
Also becomes inoperative. Then, the top buff 17 is raised by receiving a repulsive force due to contact with the windshield of the vehicle body. (Steps S1, S2, S3, S4, S5). When the windshield is gently inclined, the top buff 17 is lifted by the contact reaction force with the windshield.

[0030] As the traveling frame 1 continues to travel, the top buff 17 reaches the position (f) on the roof surface of the vehicle body,
Polices the roof surface, that the traveling frame 1 has reached a predetermined distance L ₁ which is previously set from the start position, the traveling position detecting means 42 detects (step S
5) As a result, the torque motor 23 is driven to rotate forward at the third voltage, and the top buff 17 descends, and the top buff 17 is lowered by the balance between the descending force at that time and the contact reaction force received by the top buff 17 from the roof surface. The roof surface can be efficiently polished by contacting the surface with an appropriate surface pressure.

[0031] When the top buff 17 polishes the roof surface and reaches the rear end position (g), the contact reaction force received from the vehicle body surface decreases, and the top buff 17 descends along the rear glass surface. At that time, since the lifting torque motors 23, 23 continue to rotate forward from the position (f) in the previous stroke, even if the relative motion speed between the traveling frame 1 and the vehicle V is high, the top buff 17 is It can quickly descend along the shape of the upper surface of the vehicle body without delay and can sufficiently polish the G portion shown in FIG. Further, the detecting means is not used for stopping the lowering when the torque motors 23 lower the top buff 17 and press the top buff 17 against the upper surface of the vehicle body, and the descent driving force of the torque motors 23, 23 and the contact reaction force received by the top buff 17 from the upper surface of the vehicle body Therefore, it is possible to prevent an excessive surface pressure from acting between the top buff 17 and the upper surface of the vehicle body due to erroneous detection or failure of the detection means,
Damage to the top buff 17 and the polishing device W is reliably avoided.

[0032] The top buff 17 has finished polishing on the rear glass surface and is at the front position on the trunk surface (h).
When it reaches the position, the top buff 17 becomes the torque motor 23,
When the lowering force by the lever 23 and the contact reaction force received from the trunk surface are balanced, the lowering of the top buff 17 stops,
The top buff 17 can polish the trunk surface with an appropriate surface pressure. When the switch 39 is activated due to the presence of a protrusion on the upper surface of the vehicle body after step S5, the torque motors 23, 23 are driven in reverse rotation at the second voltage, and when the switch 39 is deactivated, the torque motors 23, 23 are activated. It is driven to rotate normally at the third voltage (step S6, S7, S
8, S9, S10).

[0033] The forward stroke continues traveling frame 1, a photoelectric sensor 46 provided on the traveling frame 1 detects the rear end of the vehicle V, the travel position L ₂ to be detected by the traveling position detecting means 42 are stored.

When the top buff 17 passes the rear end of the vehicle V, the lowering detection switch 32 detects that the upper and lower torque motors 23 and 23 are inoperative. Then, when the traveling frame 1 reaches the forward stop position (the right end position in FIG. 4, the return start position), the traveling of the traveling frame 1 is stopped, and the top buff 17 reaches the position (i), and the traveling frame 1 The polishing of the upper surface of the vehicle body in the forward direction ends.

Next, at the forward end position of the traveling frame 1, that is, the return start position (right end position in FIG. 5), the top buff 1 is not operated with the torque motors 23, 23 for lifting and lowering.
7 is reversely driven (clockwise in FIG. 5) to drive the traveling frame 1 backward. Thereafter, when the traveling frame 1 goes forward (b)
By the same action as from to (f), the trunk surface of the vehicle,
The rear glass surface can be polished. In this case, the guide frame 6 comes into contact with the vehicle body surface and moves forward F (Fig. 5,
Swing to the right).

'The top buff 17 reaches the roof surface by continuing the traveling of the traveling frame 1, and the traveling position detecting means 42
But when it detects that became traveling position go-around by a predetermined distance B set in advance from the traveling position L _2, lifting the torque motor 23 is driven to rotate normally at the third voltage.
As a result, the top buff 17 is moved to (
The roof surface, the windshield surface, and the bonnet surface are polished by the same action as in (i) to (i). At this time,
The portion H shown in FIG. 5 can be sufficiently polished.

When the traveling frame 1 reaches the forward end position, that is, the start position (the left end position in FIG. 5), the reversing of the traveling frame 1 and the rotation of the top buff 17 are stopped, and the torque motors 23, 23 are driven in reverse to drive the top buff. The top buff 17 is stopped at the upper limit position by stopping the raising and lowering torque motors 23, 23 by detecting the upper limit detection switch 33, thereby terminating the polishing of the traveling frame 1 in the regression.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments, and various embodiments are possible within the scope of the present invention. For example, in the above embodiment, the case where the apparatus of the present invention is applied to a movable polishing apparatus has been described. However, it is needless to say that the present invention can be applied to a fixed polishing apparatus for moving the vehicle V back and forth with respect to a fixed frame. Also, the processing body may be a top brush or other top processing body other than the top buff, and the lifting torque motor may be a single. Further, the guide frame for supporting the processing body such as the top buff does not have to be the gate type, and the guide rail constituting the frame may be one. In addition to the coil spring, other springs or elastic members such as rubber may be used as the returning means for returning the guide frame to the neutral position. Further, in the case of an apparatus that performs processing only on the way out or on the way back, the guide frame moves from the neutral position N to the front F,
Alternatively, the user may be able to oscillate vertically to one of the rear sides R.

When the present invention is applied to brushing cleaning, the cleaning effect of the portion G shown in FIG. 4 and the portion H shown in FIG. 5 can be improved.

[0040]

As described above, according to the present invention, when it is detected that the processing body is in contact with the upper surface of the vehicle body too much, the torque
Since the elevation driving motor is Kumota is driven to raise the processed, Ru can <br/> is possible to increase the processing at a suitable contact along the inclined surface of the upstream direction of the vehicle body upper surface of the vehicle . If or treated is not detected that are too contact with the vehicle body upper surface, the elevation driving motor is torque motor is driven so as to lower the processing thereof, a lifting drive
When the processing object is pressed against the upper surface of the body by the lowering driving force of the motor,
Stopping the lowering of the processing body is performed by the lowering driving force and the processing body.
To balance with the contact reaction force received from the top of the body
However, since the driving of the motor is continued, even when the relative movement speed between the frame and the vehicle is high, the processing object is slow.
Quickly descends along the shape of the vehicle body top without being
The processing body can be reliably applied to the upper part of the downward slope following the ceiling surface of the vehicle to maintain the processing effect, whereby the entire upper surface of the vehicle body can be processed in an appropriate contact state with the processing body. I can . Furthermore, a lifting drive that is a torque motor
Since the lowering of the processing body when the processing body is pressed against the upper surface of the vehicle body by the lowering driving force of the motor is performed by balancing the lowering driving force and the contact reaction force received by the processing body from the upper surface of the vehicle body, the detection means is not used. There is no possibility that the torque motor strongly presses the processing body against the upper surface of the vehicle body due to erroneous detection or failure of the detecting means, and the upper surface of the vehicle body or the upper surface processing device is not damaged.

[Brief description of the drawings]

FIG. 1 is a partially cutaway schematic front view of a mobile car washer equipped with the apparatus of the present invention.

FIG. 2 is a side view of the car washer taken along line 2 of FIG. 1;

FIG. 3 is a partially enlarged sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is a diagram showing a polishing process of the upper surface of the vehicle body when the traveling frame travels forward.

FIG. 5 is a polishing process diagram of the upper surface of the vehicle body when the traveling frame is traveling backward.

FIG. 6 is a flowchart illustrating an operation.

[Explanation of symbols]

1 Running frame as a frame 8 Guide rail as an ascending / descending rail 17 Top buff as a processing body 20 Motor as a rotation driving motor 23 Torque motor as an ascending / descending driving motor 39 Detection switch as a contact state detecting means 41 As a contact state detecting means Actuator 47 Control means C ₁ truck C ₂ truck V Vehicle

Claims (1)

(57) [Claims] And 1. A frame liftable carriage along the elevating rails provided in (1) (8) (C 1, C 2), for vertically driving the <br/> carriage (C _1, C ₂₎ Lift drive motor (2
And 3) a carriage (C _1, C ₂₎ to rotatably provided was treated (17), a rotary drive motor (20) for rotationally driving the processing member (17), said processing member (17) Vehicle (V)
A contact state detecting means for detecting the state of contact between the vehicle body upper surface of the (39, 41), said contact state detecting means (39,4
Control means for controlling the lifting drive motor (23) based on detection of 1) (47) becomes and a, the processed (17) frame (1) while rotating the vehicle (V)
Preparative moved relative to the longitudinal direction of the vehicle (V), said processing member (17) and along a vehicle body upper surface of the vehicle (V) for processing the vehicle body upper surface, the upper surface treatment apparatus for a vehicle, the lifting drive The motor (23) is a torque motor, and the control means (47) is the contact state detection means (39,
41) is driven in the direction in which the processed elevation drive motor (23) (17) rises while detecting a too contact, the elevation drive motor when not detected too contact (23 the) as the treated (17) is driven in a direction downward, the processed by the vertical drive force of the elevation drive motor (23)
(17) when the processing body (1) is pressed against the upper surface of the vehicle body
The stop of the descending of 7) is performed by the descending driving force and the processing body (17).
To balance with the contact reaction force received from the top of the body
Upper surface treatment apparatus for a vehicle, characterized in that the.