JP3052055B2 - Cleaning brush device for tunnel cleaning car - Google Patents

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 the wall of a tunnel with a cleaning brush.

[0002]

2. Description of the Related Art Such a cleaning brush device for a tunnel cleaning vehicle is already known as described in Japanese Patent Application Laid-Open No. 60-98100.

[0003] The cleaning brush device of this tunnel cleaning car,
It has a structure in which a vertically swingable arm is supported at the end of a shaft that is arranged in the left and right direction of the vehicle body and that can expand and contract to the right side of the vehicle body, and a cleaning brush that cleans the lower wall of the observer passage is provided on this arm. . When the cleaning operation is not performed, the shaft is contracted to store the arm and the cleaning brush on the upper surface of the vehicle body, and when performing the cleaning operation, the shaft is extended and the arm and the cleaning brush are moved to the right side surface of the vehicle body. rear,
The cleaning brush is moved to the side of the lower wall of the observer passage by swinging the arm downward, and the shaft is further contracted so that the cleaning brush contacts the lower wall of the observer passage.

[0004]

In the above-mentioned conventional apparatus, it is necessary to make the shaft and the arm perform complicated operations in order to bring the cleaning brush into contact with the lower wall of the observer passage, and the control thereof is troublesome. There was a problem that is.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a cleaning brush device for a tunnel cleaning vehicle that can easily and surely make a cleaning brush abut on a wall surface of a tunnel to be cleaned. Aim.

[0006]

According to one aspect of the present invention, there is provided a tunnel for cleaning a wall of a tunnel with a cleaning brush provided on a cleaning brush mount while traveling in the tunnel. In a cleaning brush device for a cleaning car, a swing frame swingably supported by the cleaning brush mounting base, a drive source for swinging the swing frame in a direction of coming and going with respect to the wall surface, A cleaning brush support member that is swingably supported on the swing frame via a pivot and supports the cleaning brush, and is provided between the cleaning brush support member and the vehicle body, and when the swing frame swings, Posture maintaining means for maintaining the posture of the cleaning brush supporting member constant.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the posture holding means is provided on one of the cleaning brush mounting base and the cleaning brush support member, and the movement locus of the pivot is provided. And a cam follower provided on the other of the cleaning brush mount and the cleaning brush support member, and a spring for pressing the cam follower against the cam member.

[0008]

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 12 show an embodiment of the present invention. FIG. 1 is a side view of a tunnel cleaning car, and FIG.
FIG. 3 is an enlarged view of a main part of FIG. 1, and FIG.
FIG. 5 is a view in the direction of arrow 5 in FIG. 3, FIG. 6 is a view in the direction of arrow 6 in FIG. 3, FIG. 7 is an enlarged sectional view taken along line 7-7 of FIG.
FIG. 9 is an enlarged sectional view taken along line 8-8 of FIG. 4, FIG. 9 is an explanatory view of the operation when the cleaning brush is raised and lowered, FIG. 10 is an explanatory view of the operation when the cleaning brush is raised and lowered, and FIG. , FIG.
2 is an explanatory view of a cleaning operation of the lower wall of the observer passage.

As shown in FIG. 12, a left traveling lane L ₁ and a right passing lane L ₂ are provided adjacent to each other inside a tunnel T, and a left traveling lane L ₁ is provided on the left side of the traveling lane L _1. stage with a high cruising lane side wardens passage P ₁ is provided, it raised overtaking lane side wardens passage P ₂ is provided on the right side of the passing lane L _2. Traffic lane L ₁ and substantially vertical warden passage lower wall between the cruising lane side wardens passage P ₁ WL ₁
There is formed, also substantially vertical warden passage lower wall WL ₂ is formed between the overtaking lane L ₂ and TsuiEtsu traffic side wardens passage P _2. The left cruising lane side wardens passage P ₁ tunnel side walls WU ₁ which upwardly inclined toward the tunnel T center side is formed, on the right side of the passing lane side wardens passage P ₂ above the tunnel T center side Side wall WU ₂ inclined toward
Is formed. Of the road surface is traveling lane side wardens passage P ₁ and TsuiEtsu lane side wardens passage P _2, section "I" shaped rails R, R are laid respectively in order to guide the tunnel sweepers.

As shown in FIG. 1 and FIG. 2, the tunnel cleaning vehicle is composed of a first cleaning vehicle V ₁ connected to a rear portion of a power vehicle (not shown) via a connector ₁ and a first cleaning vehicle V ₁ . A second cleaning vehicle V2 connected to the rear portion via the couplers ₂ and 3 is provided.

First cleaning car V₁Supports chassis unit 4
A front bogie 5 and a rear bogie 6
5 is driven by a motor 7 and is connected to a guard path P₁, P_Twoof
A pair of left and right drive wheels 8, 8 rolling on the road surface, and a rail R
Two left and right guide wheels 9 guided on both sides of the
The rear bogie 6₁, P_Twoof
A pair of left and right driven wheels 10 and 10 rolling on a road surface;
Left and right two guide wheels 11 guided on both sides of the handle R
…. First cleaning truck V₁On the chassis unit 4
Is provided with a water tank unit 12 for storing water for cleaning.
Switchboard unit 13 and lower side wall WL of the observer passage₁, WL_Two
Cleaning brush unit BU that cleans ₁Is provided
You.

The second cleaning car V_TwoSupports the chassis unit 14
A front trolley 15 and a rear trolley 16 are provided.
The truck 15 is driven by the motor 17 to move
₁, P_TwoPair of left and right drive wheels 18, 1 that roll on the road surface
8 and two left and right guides guided on both side surfaces of the rail R.
And the rear bogie 16 is monitored.
Member passage P₁, P_TwoA pair of left and right driven wheels that roll on the road surface
20, 20 and each of the left and right guided on both sides of the rail R
And two guide wheels 21. Second cleaning truck V_TwoNo
On the chassis unit 14, the tunnel side wall WU₁, WU_Two
Cleaning brush unit BU that cleans the lower part of the brush_TwoAnd distribution
Electric panel unit 22 and tunnel side wall WU ₁, WU_Twoupon
Cleaning brush unit BU for cleaning the part_ThreeAnd rinse
A rinse nozzle unit 23 for injecting water and an operator
Is provided with the driver's cab 24 where In the cab 24,
CCD cameras 2 provided on both left and right sides of switchboard unit 22
Moni showing the image of tunnel T taken at 5, 25
Switch 26 and various switches operated by the operator.
An operation panel 27 is provided.

Next, a first cleaning vehicle related to the gist of the present invention
V₁First cleaning brush unit BU ₁The structure of FIG.
This will be described in detail with reference to FIG.

An annular gear 31 is fixed to the upper surface of the chassis unit 4 of the first cleaning car V _1.
A disc-shaped turning shaft 33 is rotatably fitted to the inner periphery of the shaft through a ball bearing 32. A turning motor 35 is attached downward to a plate-shaped turning frame 34 fixed to the upper surface of the turning shaft 33, and a pinion 36 provided on an output shaft of the turning motor 35 meshes with the gear 31.
Therefore, when the turning motor 35 is driven to rotate the pinion 36 meshing with the fixed gear 31, the turning frame 34 turns integrally with the turning motor 35 by the reaction force received from the gear 31.

An upper support shaft 38 and a lower support shaft 39 extending in the horizontal direction are rotatably mounted between a pair of right and left columns 37, 37 erected on the revolving frame 34. Prop 37, 3
The tip of a pair of left and right lower support arms 40, 40 extending forward from 7 and the tip of a pair of left and right upper support arms 41, 41,
A pair of left and right guide columns 42, 42 extending in the vertical direction are fixed. A pair of left and right plate-like elevating members 4 are fixed to a pair of left and right plate-like guide rails 43, 43 fixed to the front surfaces of the guide posts 42, 42 via four guide rollers 44, respectively.
5, 45 are supported to be able to move up and down freely. Lifting members 45, 45
The lower end of the lifting member 4 is connected to a pair of left and right stoppers 51 (see FIG. 3) provided at the lower ends of the guide rails 43.
The lower guide rollers 44 provided on the rollers 5, 45 are regulated by contact with each other.

Brackets 47, 46 are attached to a pair of left and right columnar lifting columns 46, 46 fixed to the front surfaces of the lifting members 45, 45.
A pair of left and right plate-like guide rails 48, 48 via 47
Is fixed. The lifting frame 49 includes a pair of left and right side plates 49.
₁ and 49 ₁ are connected by a connecting member 49 ₂ at the front part.
Four guide rollers 50 provided on the side plates 49 ₁ , 49 ₁ are rotatably engaged with the guide rails 48, 48. A pair of left and right stoppers 54, 54 (see FIGS. 3 and 4) protruding from the front surfaces of the lifting members 45, 45 are provided on the respective side plates 49 ₁ , 49 _1.
It engages the upper end of 0,50. A pair of left and right fulcrum pins 52, 52 project from the inner surfaces of the side plates 49 ₁ , 49 ₁ , and one end is formed at the other end of the pair of left and right first link arms 53, 53 fixed to the lower support shaft 39. Elongated holes 53 ₁ , 53
₁ is slidably engaged with the fulcrum pins 52, 52.

An elevating cylinder 55 for vertically swinging the first link arms 53 around the lower support shaft 39 has a pin 5 mounted on a bracket 56 provided on the upper surface of the revolving frame 34.
It is pivoted through 7. The lifting cylinder 55 is a motor 5
The rotation of the output rod 59 is output as a forward and backward movement of the output rod 59 by a screw mechanism.
A pin 61 is pivotally supported on the other end of a first connection link 60 having a “U” shape, one end of which is fixed to the upper support shaft 38. The other ends of a pair of left and right “く” -shaped second connecting links 62, 62, one ends of which are fixed to the upper support shaft 38, are pivoted to the upper ends of the pair of left and right second link arms 64, 64 by pins 63, 63. The lower ends of these second link arms 64, 64 are
At 5,65, the first link arm 53 is pivotally supported at an intermediate portion.

The swing frame 71 of the side plates 71 _1, 71 ₁ of the left and right was ligated upper plate 71 ₂ is suspended swingably back and forth through a pivot 72 on the lower surface of the connecting member 49 ₂ of the lift frame 49 supporting Is done. Between the lower ends of the left and right side plates 71 ₁ , 71 ₁ of the swing frame 71, a partially cylindrical cleaning brush holder 73 having one open side is supported via pivots 74, 74 so as to be able to swing back and forth. Cleaning brush holder 73 side plate 73 ₁ and the upper plate 73 ₂ and includes a lower plate 73 _3, the rotary shaft 76 of the cleaning brush 75 to the upper plate 73 ₂ and the lower plate 73 ₃
Are rotatably supported. Cleaning and cleaning brush motor 78 via a bracket 77 to the upper plate 73 ₂ of the brush holder 73 is supported, the cleaning brush 75 is rotated which is connected to the rotary shaft 76 to the output shaft of the cleaning brush motor 78 . The cleaning brush holder 73 also serves as a cover for the cleaning brush 75.

The cleaning brush motor 78 includes a cleaning brush 75.
Are arranged in the vertical direction on the axis of the rotating shaft 76, and housed between the left and right side plates 49 ₁ 49 ₁ of the elevating frame 49, so that the cleaning brush motor 78 moves in the radial direction of the cleaning brush 75. There is no possibility that it will protrude and be in the way.

As best shown in FIG. 8, rods 81, 81 pivotally supported via pins 80, 80 on brackets 79, 79 provided on the inner surfaces of the side plates 49 ₁ , 49 ₁ of the lifting frame 49. , which extends inside the spring housing 82, 82 provided on the upper plate 71 ₂ of the swing frame 71, a spring between the lower end and the upper wall of the spring housing 82, 82 of the rod 81, 81 83 and 83 Is contracted. Therefore, the swing frame 71 is connected to the spring 8
With the resilient force of 3,83, it is urged around the pivot 72 in the direction of arrow a in FIG.

An output rod 85 of a cleaning brush pressing cylinder 84 provided on _one side plate 49 ₁ of the lifting frame 49.
Is connected via a pin 87 to an elongated hole 86 ₁ (see FIG. 3) of a bracket 86 provided on _one side plate 711 of the swing frame 71. Therefore, the cleaning brush pressing cylinder 84
When the is extended, the swing frame 71 can be swung in the direction of the arrow a 'in FIG. 8 against the elastic force of the springs 83, 83.

As is apparent from FIG. 8, the lifting frame 4
The lower surface of 9 has a pair of left and right cam members 88, 88 are provided, wherein the guide rollers 89, 89 a pair of left and right supported on the upper plate 73 ₂ of the cleaning brush holder 73 the cam member 8
8 and 88, a pair of left and right springs 90, 90 are provided between the cleaning brush holder 73 and the lifting frame 49.
90 is installed.

In FIGS. 3 and 4, reference numerals 91...
The wash water housed in the water tank unit 12, wardens passage lower wall W to clean the first cleaning brush unit BU ₁
This is a cleaning water nozzle that jets to L ₁ and WL ₂ .

Next, a description will be given of the operation when cleaning the wardens passage lower wall WL _1, WL ₂ in the first cleaning brush unit BU _1.

As shown in FIG. 12, the cleaning guards passage lower wall WL ₁ of the lower cruising lane side wardens path P ₁ is first
Performed while sweeper V ₁ is traveling in the reverse side of the monitoring personnel passage P ₁ from the front side of the paper, also cleaning even overtaking lane side wardens passage P ₂ below the wardens passage lower wall WL _2, the first cleaning Car V ₁
There performed while traveling on the back side of the monitoring personnel passage P ₂ from the front side of the paper.

[0027] When not in use is not performed cleaning operation, the first cleaning brush unit BU ₁ is stored to the storage position shown in FIGS. Cleaning brush 75 to perform cleaning work
Proceed to move to the cleaning position along the wardens passage lower wall WL _1, by rotating the rotating frame 34 by first driving the turning motor 35, the first cleaning brush unit BU ₁ from the storage position 2. Turn 90 ° to the right in the direction (ie, in the direction of arrow b in FIG. 2). Subsequently, when the elevating cylinder 55 is driven to contract the output rod 59, the first
Connection link 60, upper support shaft 38, and second connection link 6
2 and 62 swing together in the counterclockwise direction in FIG. As a result, the second connection link whose upper end is connected to the second connection link 62, 62 is formed.
The link arms 64 move downward, and the first link arms 53 connected to the lower ends of the second link arms 64 swing downward about the lower pivot 39.

[0028] When the first link arm 53 is swung downward, pivot pin 5 to the long holes 53 _1, 53 ₁ of the front end
Elevating frame 49 suspended by locking 2, 52
But it descends while moving along the pivot pins 52 and 52 in the long hole 53 ₁ 53 _1. At this time, the lifting column 46,
Since the stopper 46 is suspended from the stopper 54 provided at the upper end thereof by being locked by the guide rollers 50 of the lifting frame 49, the lifting columns 46 descend integrally with the lifting frame 49. That is, the lifting columns 46, 4
The guide rollers 44 provided on the lifting columns 46, 46 are guided by the guide rails 43 provided on the guide columns 42, and the frame 6 and the lifting frame 49 are integrally lowered.

As shown in FIG. 9, when the elevating columns 46, 46 descend and the guide rollers 44, 44 abut against stoppers 51, 51 provided at the lower ends of the guide rails 43, 43, the elevating columns 46, 46 are moved. 46 reaches the lower limit position and cannot be further lowered. When the first link arms 53 swing further downward, the guide rollers 5 are attached to the guide rails 48 of the lifting columns 46, 46 stopped at the lower limit position.
The lifting frame 49 guided by 0. As a result, as shown in FIG. 10, the first cleaning cleaning brush 75 of the brush unit BU ₁ can reach a position opposed to the wardens passage lower wall WL _1.

As described above, the elevating columns 46, 46 are supported by the guide columns 42, 42 so as to be able to move up and down, and the elevating frame 49 is supported by the elevating columns 46, 46 so as to be able to move up and down. while reducing the overall height of the first cleaning brush unit BU ₁ with minimum length, it can be moved to the fully downward cleaning brush 75. Moreover, the guide columns 42, 42 and the lifting columns 4
The cleaning brushes 75 including the lifting frame 49 and the like are disposed in the vicinity of the cleaning brush 75 in the vertical direction.
A large moment does not act due to the weight of, which is advantageous in terms of strength and enables weight reduction.

The cleaning brush 75 is moved to the lower side wall WL _{1 of the} observer passage.
3, the cleaning brush pressing cylinder 84 is in an extended state in FIG. 3, and a pin 87 provided at the tip of the output rod 85 has an elongated hole 86 ₁ formed in a bracket 86 of the swing frame 71. 11A, the swing frame 71 swings in the direction of arrow a 'around the pivot 72 against the elastic force of the springs 83, 83 as shown in FIG. . At this time, the cleaning brush holder 73 pivotally supported by the swing frame 71 via the pivots 74, 74 causes the guide rollers 89, 89 to spring by the springs 90, 90, and the cam members 88, 88 of the lifting frame 49. It is held in a vertical position by abutting the predetermined gap between the cleaning brush 75 which is supported by the cleaning brush holder 73 and the wardens passage lower wall WL ₁ is formed.

From this state, the cleaning brush pressing cylinder 8 is pressed.
4, the swing frame 71 swings around the pivot 72 in the direction of the arrow a in FIG. 11B by the resilience of the springs 83, 83.
Cleaning brush holder 73 which is pivoted to move the warden passage lower wall WL ₁ side through the 4,74, it is brought into contact with the cleaning brush 75 to the monitoring personnel passage lower wall WL _1. Swing frame 7
1 swings the pivots 74, 7 of the cleaning brush holder 73.
4 is an arc c about the pivot 72 of the swing frame 71
(See FIG. 3) The guide roller 89, 89 of the cleaning brush holder 73 is guided and moved by the cam members 88, 88 having the same shape as the arc c with this movement. 73 (that is, the cleaning brush 7
5) abuts against the warden passage lower wall WL ₁ side while maintaining the vertical posture without tilting. Thereby, the cleaning brush 75
It can be allowed to uniformly contact the warden passage lower wall WL ₁ enhances the cleaning effect.

The only thus lowers the cleaning brush 75 to the height of the wardens passage lower wall WL ₁ contracts drive the cleaning brush pressing cylinder 84, the spring 83,8
Since the cleaning brush 75 can be brought into contact with the lower side wall WL1 of the monitoring personnel passage at a predetermined surface pressure with the elasticity of ₃ , the troublesome position control and surface pressure control of the cleaning brush 75 become unnecessary. The warden passage lower sidewall WL in accordance with the running of the first sweeper V _1
1 and it may change subtly distance between the cleaning brush 75, when the projection of the wardens passage lower wall WL ₁ as the cleaning brush 75 is in contact, the cleaning brush 75 is the long hole of the bracket 86 of the swing frame 71 86 In the range of _1, the lower wall W of the guards passage
It is possible to escape in a direction away from the L _1, a large load to the cleaning brush 75 and cleaning brush pressing cylinder 84 does not act.

[0034] In Thus, by driving to rotate the cleaning brush 75 at cleaning brush motor 78, and the first sweeper V ₁ while spraying washing water from the washing water nozzle 91 ... along the rail R, it is possible to clean the warden passage lower wall WL ₁ in the cleaning brush 75.

Next, when cleaning the wardens passage lower wall WL _2, the first cleaning 2 brush unit BU ₁
May be turned 90 ° from the storage position in the direction of arrow b ′. Thus, the first cleaning brush unit BU ₁ is first
Since it is possible to turn toward both left and right sides in the traveling direction of the cleaning truck V, it is possible to cope with the case where the lower side walls WL ₁ and WL _{2 of} the monitoring personnel passage are located on either the left or right side.

Although the embodiments of the present invention have been described in detail, various design changes can be made in the present invention without departing from the gist thereof.

For example, in the embodiment, the present invention is applied to the first cleaning brush unit BU ₁ for cleaning the lower side walls WL ₁ and WL ₂ of the observer passage, but this is applied to the tunnel side wall WU ₁ W.
It can be applied to the second cleaning brush unit BU ₂ or the third cleaning brush unit BU ₃ for cleaning the U _2.

In the embodiment, the posture holding means constituted by the cam member 88, the guide roller 89 and the spring 90 can be changed as follows. That is, the cam member 88 can be provided on the brush holder 73 side and the guide roller 89 can be provided on the lifting frame 49 side, and the cam member 88 and the guide roller 89 can be provided in the elongated holes and the pins (or guide rollers) engaging with the elongated holes. Can be replaced by

Further, in the embodiment, the cleaning brush mounting base is constituted by the elevating frame 49 which swivels and moves up and down with respect to the chassis unit 4. It can be replaced by what is done or a combination of these.

Further, in the embodiment, the cleaning brush holder 73 constituting the cleaning brush support member is provided with the cleaning brush 7.
Although the cover also serves as the cover 5, the cover 5 may simply support the cleaning brush 75.

[0041]

As described above, according to the first aspect of the present invention, a simple operation of swinging the swinging frame toward and away from the wall surface by the driving source can be performed by this simple operation. Since the cleaning brush supporting member pivotally supported by the moving frame is moved while the posture is kept constant by the posture holding means, the cleaning brush supported by the cleaning brush supporting member is evenly distributed on the wall surface of the tunnel. The cleaning effect can be enhanced by contact.

According to the second aspect of the present invention,
A cam member provided on one of the cleaning brush mounting base and the cleaning brush support member and having a shape following the movement locus of the pivot; and a cam follower provided on the other of the cleaning brush mounting base and the cleaning brush support member. And a spring that presses the cam follower against the cam member, so that the cleaning brush support member can be moved with a simple structure while maintaining the cleaning brush support member in a fixed posture.

[Brief description of the drawings]

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

FIG. 2 is a view in the direction of arrows in FIG. 1;

FIG. 3 is an enlarged view of a main part of FIG. 1;

FIG. 4 is a view in the direction of arrows in FIG. 3;

FIG. 5 is a view in the direction of arrows in FIG. 3;

FIG. 6 is a view in the direction of arrows in FIG. 3;

FIG. 7 is an enlarged sectional view taken along line 7-7 of FIG. 4;

8 is an enlarged sectional view taken along line 8-8 of FIG. 4;

FIG. 9 is an explanatory diagram of an operation when the cleaning brush is moved up and down.

FIG. 10 is an explanatory diagram of an operation when the cleaning brush is moved up and down.

FIG. 11 is a diagram illustrating an operation when the cleaning brush is pressed.

FIG. 12 is an explanatory diagram of a cleaning operation of the lower side wall of the observer passage;

[Explanation of symbols]

T Tunnel WL ₁ wardens passage lower wall (wall surface) WL ₂ wardens passage lower wall (wall surface) 49 lift frame (cleaning brush mount) 71 swinging frame 73 cleaning brush holder (cleaning brush supporting member) 74 pivot 75 cleaning brush 84 Cylinder for pressing the cleaning brush (drive source) 88 Cam member (posture holding means) 89 Guide roller (cam follower, posture holding means) 90 Spring (posture holding means)

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Koichi Matsuki 6th Ichigogo 45, Koshienguchi, Nishinomiya City, Hyogo Prefecture Inside the Far East Development Industry Co., Ltd. (58) Field surveyed (Int.Cl. ⁷ , DB name) E21F 17/00 E01H 1/00

Claims (2)

(57) [Claims] 1. A tunnel wall (WL _1, WL ₂₎ of the tunnel sweeper for cleaning the (T) in the cleaning brush mount while traveling cleaning brush provided in (49) (75) in the tunnel (T) in the cleaning brush device, the cleaning brush mount and (49) pivotally supported swing frame (71), the wall (WL ₁ to the swing frame (71), W
L ₂ ) and a drive source (8
4) a cleaning brush support member (73) that is swingably supported by the swing frame (71) via a pivot (74) and supports the cleaning brush (75); 73) and the cleaning brush mounting base (49).
Posture holding means (88, 89, 90) for holding the posture of the cleaning brush support member (73) constant during the swing of 1);
A cleaning brush device for a tunnel cleaning car, comprising: 2. A cam member (88) provided on one of the cleaning brush mounting table (49) and the cleaning brush support member (73), and having a shape following the movement locus of the pivot (74). ), A cam follower (89) provided on the other of the vehicle body (49) and the cleaning brush support member (73), and a spring (90) for pressing the cam follower (89) against the cam member (88). The cleaning brush device for a tunnel cleaning vehicle according to claim 1, wherein: