JPH09296699A - Cleaning brush device of tunnel cleaning car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and securely arrange a cleaning brush to contact a lighting tool installed at the upper part of the side wall of a tunnel, while preventing the brush from touching the side wall of the tunnel. SOLUTION: A vertically movable frame 43 is supported on a guide member 26 erected along the inclination of the side wall W of a tunnel, on a cleaning car V2 . And a cleaning brush 23 is fitted to a fitting frame supported by the frame 43 through parallel link mechanisms 49, 50. After the frame 43 has been raised so that the cleaning brush 23 is positioned almost at the same level with a lighting tool L installed at the upper part of the side wall W of the tunnel, the fitting base of the cleaning brush is parallelly transferred toward the side wall W of the tunnel through the parallel link mechanisms 49, 50 to position the brush 23 to contact the lighting tool L.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning brush device for a tunnel cleaning vehicle for cleaning a lamp provided on an upper portion of a tunnel side wall while traveling along the tunnel side wall.

[0002]

2. Description of the Related Art A cleaning brush device for such a tunnel cleaning vehicle is already known as described in Japanese Patent Laid-Open No. 7-243300. This is one in which a rod-shaped support portion having a cleaning brush at the upper end is supported so as to be able to move up and down and swing along the upper and lower guide columns installed upright in the tunnel cleaning vehicle. The cleaning brush is brought into contact with the lamp fixture by swinging toward the tunnel center line and moving up along the upper and lower guide columns.

[0003]

By the way, in the above-mentioned conventional apparatus, since the cleaning brush is supported on the upper end of the swinging supporting portion, the supporting portion is swung to correctly position the cleaning brush with respect to the lamp. However, if the support is erroneously raised before being rocked, the cleaning brush may interfere with the tunnel sidewall and be damaged. Further, since the inclination angle of the cleaning brush changes with the swing of the support portion, if the position of the lamp changes due to an installation error and the swing angle of the support portion changes, the cleaning brush hits the lamp with the correct inclination angle. There is a problem that they cannot be contacted and proper cleaning cannot be performed.

The present invention has been made in view of the above circumstances, and an object thereof is to bring the cleaning brush into contact with the lamp easily and surely without interfering with the tunnel side wall.

[0005]

In order to achieve the above object, the invention described in claim 1 is a tunnel cleaning vehicle for cleaning a lamp provided on an upper portion of a tunnel side wall while traveling along the tunnel side wall. In the cleaning brush device of the above, a guide member erected on the chassis unit, an elevating frame supported by the guide member so as to be movable up and down, a cleaning brush mounting base supported by the elevating frame via a parallel link mechanism, and a cleaning brush mounting base. The cleaning brush is supported at an angle along the inclination angle of the lamp, and after the elevating frame is raised along the guide member, the cleaning brush mount is moved in parallel toward the tunnel side wall by the parallel link mechanism. ,
The cleaning brush is brought into contact with the lamp.

In addition to the structure of claim 1, the invention described in claim 2 is characterized in that the guide member is inclined along the inclination of the side wall of the tunnel.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on embodiments of the present invention shown in the accompanying drawings.

1 to 13 show an embodiment of the present invention. FIG. 1 is a side view of a tunnel cleaning vehicle, and FIG.
1. FIG. 3 is an enlarged view taken along line 3-3 of FIG. 1, FIG. 4 is an enlarged view of a main part of FIG. 3, FIG. 5 is a view taken in the direction of 5 of FIG. 4, and FIG. 8 is a view in the direction of arrow, FIG. 7 is a view in the direction of arrow 7 in FIG.
8 is a sectional view taken along line 8-8 of FIG. 4, FIG. 9 is an explanatory view of the action, and FIG.
9 is an enlarged view of a main part of FIG. 9, FIG. 11 is an explanatory view of the action, FIG. 12 is a block diagram of a control system, and a flowchart for explaining the action of obstacle avoidance.

As shown in FIGS. 1 to 3, the lamps L provided at a predetermined interval above the tunnel side wall W are cleaned while traveling on a surveillance staff passage P formed higher on the side of the automobile lane. The tunnel cleaning vehicle is composed of a front-side power vehicle V ₁ and a rear-side cleaning vehicle V ₂ connected by a coupler 1.
The motor vehicle V ₁ is provided with a front carriage 3 and a rear carriage 4 that support the chassis unit 2, and both carriages 3 and 4 have a pair of left and right running wheels 5 and 5 rolling on the road surface of the surveillance staff passage P. And two left and right two guide wheels 6 that are guided on both side surfaces of the rail R laid in the surveillance staff passage P. Further, a driver's cabin 7 and a power unit 8 are provided on the chassis unit 2 of the power vehicle V ₁ .

The cleaning vehicle V ₂ comprises a front carriage 10 and a rear carriage 11 for supporting the chassis unit 9, and both carriages 1
0 and 11 are provided with a pair of left and right running wheels 12 and 12 rolling on the road surface of the surveillance staff passage P, and two left and right guide wheels 13 guided by both side surfaces of the rail R. . Further, on the chassis unit 9 of the cleaning vehicle V ₂ , a water tank unit 14 that stores cleaning water, a cabin 15 for an operator, and a cleaning brush unit BU that cleans the lamp L are provided.

Obstacles O such as a signboard are provided at a predetermined interval on the upper portion of the tunnel side wall W at approximately the same height as the lamp L. The antenna-like first obstacle sensor 16 for detecting these obstacles O is provided. The second obstacle sensor 17 is provided on the upper surface of the cabin 7 of the power vehicle V ₁ and the upper surface of the water tank unit 14 of the cleaning vehicle V ₂ .

Next, the structure of the cleaning brush unit BU provided on the cleaning vehicle V ₂ will be described in detail with reference to FIGS. 3 to 8.

A revolving frame 22 is supported on the upper surface of the chassis unit 9 of the cleaning vehicle V ₂ via a ball bearing 21 so that the revolving frame 22 can pivot left and right. As shown in FIG. 3, the tunnel cleaning vehicle has a lamp L provided on the tunnel side wall W on the right side in the traveling direction.
For cleaning, the swivel frame 22 is manually rotated to the illustrated position so that the cleaning brush 23 can come into contact with the lamp L, and is fixed to the chassis unit 9 by the lock mechanism 24. On the contrary, when the tunnel cleaning vehicle cleans the lamp L provided on the tunnel side wall W on the left side in the traveling direction, the turning frame 2
Rotate 2 from the position shown in FIG.
Should be fixed to the chassis unit 9 in that state.

On the upper surface of the revolving frame 22, a pair of columns 2
5, 25 and a pair of guide members 26, 26 are erected. The pair of support columns 25, 25 are vertical to the swivel frame 22, and the pair of guide members 26, 26 are inclined so that the upper ends thereof approach the support columns 25, 25. The pair of support columns 25, 25 are two connecting members 2 extending in the horizontal direction.
7, 28, which are connected to each other, and also the columns 25, 25 on one side.
And the guide members 26, 26 each have three connecting members 29, 29; 30, 30; 31, 31 extending in the horizontal direction,
The two connecting members 32, 32 that are bent in a V shape are connected to each other.

The base ends of a pair of elevating arms 34, 34 bent in a V shape are fixed to a support shaft 33 rotatably installed between the pair of support columns 25, 25. The lifting cylinder 37 pivotally supported by a bracket 35 provided on the upper surface of the revolving frame 22 via a pin 36 outputs the rotation of a motor 64 (see FIG. 9) as a forward / backward movement of an output rod 38 by a screw mechanism. The upper end of the output rod 38 is pivotally supported by a pin 40 on the other end of a link arm 39 whose one end is fixed to the support shaft 33. Therefore, when the elevating cylinder 37 is driven and the output rod 38 is expanded and contracted, the elevating arms 34, 34 swing up and down via the link arm 39 and the support shaft 33.

A pair of guide members 26, 26 are fixed on opposite surfaces thereof.
4 on each of the fixed pair of guide rails 41, 41.
Elevating frame 43 engaged with individual guide rollers 42 ...
Is supported so that it can be raised and lowered. The lifting frame 43 is the guy
A pair of substantially parallelogram outer plates that support the drag rollers 42 ...
44, 44 and a connecting portion inside the outer plates 44, 44.
A pair of inner plates 46, 4 connected via members 45, 45
6 and a connecting bar 4 for connecting the inner plates 46, 46 to each other
7 and 7. Provided on the pair of outer plates 44, 44
Pins 48, 48 are formed at the tips of the lifting arms 34, 34.
Long hole 34 ₁, 34₁(See FIG. 4). Obedience
Then, the lifting cylinder 37 is used to lift the lifting arms 34, 34.
When the vertical swings, the long hole 34₁, 34₁Pin 48,4
The elevating frame 43 guided by 8 is the guide members 26, 2
Go up and down along 6.

As is clear from FIG. 10 as well, the pair of inner plates 46, 46 of the elevating frame 43 are respectively provided with link arms 49, 46 constituting a parallel link mechanism.
The cleaning brush mount 51 connects the tunnel side wall W
It is supported so that it can approach and leave. The cleaning brush mount 51 is connected to the output rod 53 of the swing cylinder 52 pivotally supported on the elevating frame 43 via the pin 57, and when the swing cylinder 52 is driven to extend, the cleaning brush mount 51 is connected to the tunnel sidewall W. When the swinging cylinder 52 is contracted and driven, the cleaning brush mounting base 51 swings away from the tunnel side wall W (arrow A'direction in FIG. 10). To do.

The cleaning brush mount 51 has pins 54, 54
The cleaning brush holder 55 is pivotally supported via the cleaning brush holder 55, and the cleaning brush 23 supported by the cleaning brush holder 55 via the rotation shaft 61 is the cleaning brush holder 55.
It is driven by a cleaning brush drive motor 56 supported on the lower surface of the. Since the lamp L attached to the inclined tunnel side wall W is inclined, the attachment angle of the cleaning brush holder 55 is inclined so that the inclination angle of the cleaning brush 23 substantially matches the inclination angle of the lamp L.

In order to absorb the reaction force received by the cleaning brush 23 from the lamp L, the link arms 50, 50 of the parallel link mechanism.
Dampers 58, 58 between one end of the
And a damper 59 is provided between the cleaning brush holder 55 and the cleaning brush mount 51.
Further, on both sides of the cleaning brush holder 55, cleaning water nozzles 60 ... Injecting cleaning water when cleaning the lamp L with the cleaning brush 23 are provided.

As is apparent from FIG. 5, in order to detect the stroke of the output rod 38 of the lifting cylinder 37, the upper and lower ends of the stroke sensor 63 are connected to the arm 62 provided at the upper end of the output rod 38 and the revolving frame 22. To be done.
Based on the output of the stroke sensor 63, the stroke of the output rod 38 of the lift cylinder 37, that is, the lift position of the lift frame 43 can be detected.

As shown in FIG. 12, the control device 70 for controlling the ascending / descending position of the ascending / descending frame 43 is composed of a microcomputer, and has a CPU (central processing unit) 71 for performing various kinds of arithmetic processing, an arithmetic result and various sensors RAM (random access memory) 72 for temporarily storing the detected value
And an R stored in advance with programs and data required for calculation
OM (read only memory) 73, input circuit 74 to which signals from various sensors are input, and lifting cylinder 3
And an output circuit 75 for outputting a signal for controlling the operation of No. 7.

The first obstacle sensor 1 is connected to the input circuit 74.
6, the second obstacle sensor 17 and the stroke sensor 63 are connected, and the output circuit 75 is connected to the lifting cylinder 37.

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

The turning frame 22 is rotated rightward or leftward in the traveling direction of the tunnel cleaning vehicle so that the cleaning brush unit BU faces the side wall W of the tunnel to be cleaned.
At that position, the lock mechanism 24 is activated and locked. Subsequently, when the elevating cylinder 37 is extended and the output rod 38 is projected upward, the elevating arms 34, 34 swing upward through the link arm 39 and the support shaft 33, and the elevating arms 34, 34 move. Long holes 34 ₁ , 3 at the tip
4 elevator frame 43 to the pin 48, 48 is engaged with the ₁
Moves up along the guide members 26, 26 from the lowered position shown in FIG. 4 to the raised position shown in FIG. Lifting frame 4
The ascending / descending position of No. 3 is monitored by the stroke sensor 63, and the ascending / descending frame 43 is controlled so as to be stopped at two preset positions, a descending position and an ascending position.

When the lifting frame 43 reaches the raised position, there is a slight gap between the cleaning brush 23 and the lamp L as shown in FIG. The arms 49 and 50 stand up and the cleaning brush 23 moves in parallel so as to approach the tunnel side wall W, and the cleaning brush 23 comes into contact with the lamp L to clean the lamp L as shown in FIG. At this time, the cleaning brush 2
The reaction force received from the lamp L by the lamp 3 causes the dampers 58, 58
Expands and contracts to automatically adjust the distance between the cleaning brush 23 and the lamp L, and the damper 59 expands and contracts to clean the cleaning brush 23.
Is automatically copied to the angle of the lamp L, so that the lamp L can be cleaned with an appropriate surface pressure.

As described above, the cleaning brush 23 is attached to the lamp L.
After raising the cleaning brush 23 to the lamp L,
Since it is moved in parallel to the position where it abuts against the lamp L, not only can the cleaning brush 23 be reliably brought into contact with the lamp L without interfering with the inclined tunnel side wall W, but also the mounting position of the lamp L varies due to construction errors. Even if there is, the fine adjustment of the position of the cleaning brush 23 with respect to the lamp L can be easily performed. Moreover, since the cleaning brush 23 is moved in parallel by the link arms 49 and 50 that form the parallel link mechanism, the inclination angle of the cleaning brush 23 does not change during the parallel movement, and thus the cleaning brush 23 is always cleaned at the correct angle. The brush 23 can be brought into contact with the lamp L.

By the way, since the width of the observer passage P is set to the minimum in order to secure a sufficient width of the vehicle lane, the tunnel cleaning vehicle travels at a position extremely close to the tunnel side wall W. Therefore, if the cleaning brush 23 is lifted in the vertical direction, the cleaning brush 23 may interfere with the tunnel side wall W whose upper portion is inclined toward the tunnel center side. By inclining the cleaning brushes 23 so as to be substantially parallel to each other, it is possible to reliably avoid the interference with the tunnel side wall W in the ascending process of the cleaning brush 23. In addition, the cleaning brush 2
Even if 3 is moved parallel to the side wall W of the tunnel and then raised, the cleaning brush 23 does not abut the side wall W of the tunnel, so there is no risk of damage.

By the way, an obstacle O such as a signboard is provided on the side wall W of the tunnel.
When there is, the collision with the obstacle O is prevented by automatically moving the cleaning brush 23 up and down. Less than,
The operation will be described with reference to the flowchart of FIG.

As shown in FIG. 1, when the first obstacle sensor 16 provided in the motor vehicle V ₁ of the tunnel cleaning vehicle traveling in the tunnel detects the obstacle O (step S1), the lifting cylinder 37 contracts. When driven, the cleaning brush 23 automatically descends from the raised position to the lowered position, whereby interference between the obstacle O and the cleaning brush 23 is avoided (step S2). At this time, the swing cylinder 52 does not operate,
The parallel movement of the cleaning brush 23 in the direction away from the tunnel side wall W is not performed.

After the cleaning brush 23 has passed below the obstacle O, when the second obstacle sensor 17 provided on the cleaning vehicle V ₂ of the tunnel cleaning vehicle detects the obstacle O (step S3).
The elevating cylinder 37 is driven to extend, and the cleaning brush 23 automatically rises from the lowered position to the raised position, whereby the cleaning brush 23 returns to a position where the next lamp L can be cleaned (step S4).

Since the obstacle O can be detected and the obstacle O can be automatically avoided as described above, the cleaning brush 23 collides with the obstacle O due to an error such as the operator overlooking the obstacle O. Not only is there no fear, but the operational burden on the operator can be greatly reduced.

Although the embodiments of the present invention have been described in detail above, the present invention can be modified in various ways without departing from the scope of the invention.

[0033]

As described above, according to the first aspect of the present invention, after the elevating frame is raised along the guide member, the cleaning brush mount is parallel to the tunnel side wall by the parallel link mechanism. By moving the cleaning brush to contact the lamp, the cleaning brush can be reliably contacted to the lamp without interfering with the tunnel side wall,
Moreover, even if the cleaning brush is accidentally moved parallel to the tunnel side wall and then raised, the cleaning brush does not interfere with the tunnel side wall. Further, since the cleaning brush moves parallel to the side wall of the tunnel, even if there is variation in the mounting position of the lamp due to a construction error, not only can the fine adjustment of the position of the cleaning brush with respect to the lamp be easily performed, Since the inclination angle of the cleaning brush does not change during the movement, the cleaning brush can be always brought into contact with the lamp at the correct angle.

According to the second aspect of the present invention,
Since the guide member is inclined along the inclination of the tunnel side wall, even if the tunnel cleaning vehicle travels at a position extremely close to the tunnel side wall, interference with the tunnel side wall during the process of raising the cleaning brush is further ensured. It can be avoided.

[Brief description of drawings]

FIG. 1 is a side view of a tunnel cleaning car.

FIG. 2 is a two-direction arrow view of FIG.

FIG. 3 is an enlarged arrow view taken along line 3-3 of FIG.

FIG. 4 is an enlarged view of a main part of FIG.

5 is a view in the direction of arrow 5 in FIG.

6 is a view in the direction of arrow 6 in FIG. 4;

FIG. 7 is a view in the direction of arrow 7 in FIG.

8 is a sectional view taken along line 8-8 in FIG. 4;

FIG. 9 is an explanatory diagram of operation

FIG. 10 is an enlarged view of a main part of FIG.

FIG. 11 is an explanatory diagram of an operation.

FIG. 12 is a block diagram of a control system

FIG. 13 is a flowchart for explaining the action of obstacle avoidance.

[Explanation of symbols]

 L light fixture W tunnel side wall 9 chassis unit 23 cleaning brush 26 guide member 43 lifting frame 49 link arm (parallel link mechanism) 50 link arm (parallel link mechanism) 51 cleaning brush mount

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koichi Matsuki No. 45, No. 45, Koshienguchi, Nishinomiya City, Hyogo Prefecture Far East Development Co., Ltd.

Claims (2)

[Claims] 1. A cleaning brush device for a tunnel cleaning vehicle, which cleans a lamp (L) provided on an upper portion of a tunnel side wall (W) while traveling along the tunnel side wall (W), and stands on a chassis unit (9). Installed guide member (26)
And an elevating frame (43) supported by a guide member (26) so as to be able to elevate and lower, and a parallel link mechanism (49, 50) on the elevating frame (43).
A cleaning brush mounting base (51) supported via the cleaning brush mounting base (51) and a cleaning brush (23) supported on the cleaning brush mounting base (51) at an angle along the inclination angle of the lamp (L). 43) the guide member (2
6) After ascending along the cleaning brush mount (5)
Cleaning of a tunnel cleaning vehicle characterized in that the cleaning brush (23) is brought into contact with the lamp (L) by moving 1) in parallel with the parallel link mechanism (49, 50) toward the tunnel side wall (W). Brush device. 2. The cleaning brush device for a tunnel cleaning vehicle according to claim 1, wherein the guide member (26) is inclined along the inclination of the tunnel side wall (W).