JPH09222000A - Cleaning brush device for tunnel cleaning truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide cleaning brush devices capable of easily and surely bringing cleaning brushes into contact with the wall surface of a tunnel. SOLUTION: After cleaning brushes 75 are lowered up to positions opposed to watchman passage lower side walls WL1 and WL2 , when cleaning brush pushing cylinders 84 are contracted and driven, oscillation frames 71 are oscillated around pivots 72 in the direction of the arrow (a) with reaction force of springs, and cleaning brush holders 73 pivoted to the oscillation frames 71 through the pivots approach the watchman passage lower side walls WL1 and WL2 . Then, the cleaning brush holders 73 keep vertical postures and are moved to bring the cleaning brushes 73 into contact with the watchman passage lower side walls WL1 and WL2 equally by guiding guide rollers 89 provided to the cleaning brush holders 73 with cam members 88.

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 surface of a tunnel with a cleaning brush.

[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. Sho 60-98100.

The cleaning brush device for this tunnel cleaning vehicle is
It has a structure in which a vertically swingable arm is supported at the tip of a shaft that is arranged in the left-right direction of the vehicle body and can extend and contract to the right side of the vehicle body, and a cleaning brush for cleaning the lower side wall of the observer passage is provided on this arm. . When the cleaning work 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 the cleaning work is performed, the shaft is extended to move the arm and the cleaning brush to the right side surface of the vehicle body. rear,
The arm is oscillated downward to move the cleaning brush to the side of the lower wall of the guard passage, and further the shaft is contracted to bring the cleaning brush into contact with the lower wall of the guard passage.

[0004]

However, in the above-mentioned prior art, in order to bring the cleaning brush into contact with the lower wall of the observer passage, it is necessary to cause the shaft and the arm to perform a complicated operation, which is troublesome to control. There was a problem that was.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a cleaning brush device for a tunnel cleaning vehicle that allows a cleaning brush to easily and surely abut on the wall surface of the tunnel to be cleaned. To aim.

[0006]

In order to achieve the above object, the invention described in claim 1 is a tunnel for cleaning a wall surface of a tunnel with a cleaning brush provided on a cleaning brush mounting base while traveling in the tunnel. In a cleaning brush device for a cleaning vehicle, a swing frame swingably supported by the cleaning brush mounting base, a drive source for swinging the swing frame in a direction to move toward and away from the wall surface, A cleaning brush support member that is swingably supported by a swing frame via a pivot and that supports the cleaning brush; and a cleaning brush support member that is provided between the cleaning brush support member and the vehicle body when the swing frame swings. Attitude holding means for holding the attitude of the cleaning brush support member constant is provided.

According to a second aspect of the present invention, in addition to the structure of the first aspect, the posture maintaining means is provided on one of the cleaning brush attachment base and the cleaning brush supporting member, and the movement locus of the pivot shaft. And a cam follower provided on the other of the cleaning brush mount and the cleaning brush support member, and a spring that presses 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 vehicle, and FIG.
1. FIG. 3 is an enlarged view of a main part of FIG. 1, and FIG. 4 is a view of 4 of FIG.
8 is a view in the direction of arrow 5, 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.
8 is an enlarged cross-sectional view taken along line 8-8 of FIG. 4, FIG. 9 is an operation explanatory view when the cleaning brush is moved up and down, FIG. 10 is an operation explanatory view when the cleaning brush is moved up and down, and FIG. 11 is an operation explanatory view when the cleaning brush is pressed. , Figure 1
2 is an explanatory view of the cleaning work of the lower side wall of the surveillance staff passage.

As shown in FIG. 12, a left lane L ₁ and a right lane L ₂ are provided inside the tunnel T so as to be adjacent to each other, and on the left side of the lane L _1. An elevated lane side guard passage P ₁ is provided, and an overpass lane guard passage P ₂ is provided on the right side of the overtaking lane L ₂ . Between the traveling lane L ₁ and the traveling lane side guard passage P ₁ , a substantially vertical guard passage lower wall WL _{1 is provided.}
Is formed, and between the overtaking lane L ₂ and the overtaking lane side observer passage P _{2 a} substantially vertical observer passage lower side wall WL ₂ is formed. _On the left side of the driving lane side guard passage P ₁ , a tunnel side wall WU ₁ whose upper portion inclines toward the tunnel T center side is formed, and on the right side of the overtaking lane side guard passage P ₂ , the upper portion is the tunnel T center side. Side wall WU ₂ sloping toward
Is formed. Rails R and R each having an I-shaped cross section are laid on the road surface of the traveling lane side guard passage P ₁ and the overtaking lane side guard passage P ₂ to guide the tunnel cleaning vehicle.

As shown in FIGS. 1 and 2, the tunnel cleaning vehicle includes a first cleaning vehicle V ₁ connected to a rear portion of a power vehicle (not shown) through a connector _1, and a first cleaning vehicle V ₁ of the first cleaning vehicle V ₁ . It is provided with a second cleaning vehicle V ₂ connected to the rear part via connectors 2 and 3.

First cleaning vehicle 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
... and. 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.

Second cleaning vehicle V_TwoSupports chassis unit 14
It has a front carriage 15 and a rear carriage 16 to carry
The carriage 15 is driven by the motor 17 to move the surveillance staff passage P.
₁, P_TwoPair of left and right drive wheels 18,1 rolling on the road surface
8 and two left and right guides on both sides of the rail R
And the rear bogie 16 is monitored.
Member passage P₁, P_TwoPair of left and right driven wheels rolling on the road surface
20, 20 and each left and right guided by both sides of the rail R
And two guide wheels 21 ... Second cleaning car V_TwoShi
On the chassis unit 14, the tunnel side wall WU₁, WU_Two
Cleaning brush unit BU for cleaning the lower part of the_TwoAnd
Electric board unit 22 and tunnel side wall WU ₁, WU_Twoupon
Third 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 cab 24 where In the cab 24,
CCD cameras 2 provided on the left and right sides of the switchboard unit 22
Moni showing the video in the tunnel T shot at 5, 25
Connector 26 and various switches operated by the operator.
A control panel 27 that is worn is provided.

Next, a first cleaning vehicle related to the gist of the present invention
V₁No. 1 cleaning brush unit BU ₁The structure of
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 vehicle 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 installed between a pair of left and right columns 37, 37 standing on the revolving frame 34. Prop 37,3
To the tips of the pair of left and right lower support arms 40, 40 extending forward from 7 and the tips of the 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-shaped elevating members 4 are provided on the pair of left and right plate-shaped guide rails 43, 43 fixed to the front surfaces of the guide columns 42, 42 via four guide rollers 44, respectively.
5, 45 are supported so that they can be raised and lowered. Lifting members 45, 45
The descending end of the elevating member 4 is connected to a pair of left and right stoppers 51, 51 (see FIG. 3) provided at the lower ends of the guide rails 43, 43.
It is regulated by abutting the lower guide rollers 44, ...

A pair of left and right columnar lifting columns 46, 46 fixed to the front surfaces of the lifting members 45, 45 are attached to a bracket 47,
A pair of left and right plate-shaped guide rails 48, 48
Is fixed. The lifting frame 49 is a pair of left and right side plates 49.
The front part of ₁ , 49 ₁ is connected by a connecting member 49 ₂ ,
Four guide rollers 50 provided on each of the side plates 49 ₁ and 49 ₁ are rollably engaged with the guide rails 48 and 48. A pair of left and right stoppers 54, 54 (see FIGS. 3 and 4) projecting from the front surfaces of the elevating members 45, 45 are provided on the side plates 49 ₁ , 49 ₁ and the upper guide roller 5 is provided.
Engage at the top of 0,50. A pair of left and right fulcrum pins 52, 52 are provided on the inner surfaces of the side plates 49 ₁ , 49 ₁ so as to project, 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. Long holes 53 ₁ , 53
₁ slidably engages with the fulcrum pins 52, 52.

An elevating cylinder 55 for vertically swinging the first link arms 53, 53 about the lower support shaft 39 is provided with a pin 5 on a bracket 56 provided on the upper surface of the revolving frame 34.
Pivoted through 7. The lifting cylinder 55 is the motor 5
The rotation of 8 is output by the screw mechanism as the forward / backward movement of the output rod 59, and the upper end of the output rod 59 is
A pin 61 is pivotally supported on the other end of a “dogleg” -shaped first connecting link 60 having one end fixed to the upper support shaft 38. The other end of the pair of left and right "L" -shaped second connecting links 62, 62 having one end fixed to the upper support shaft 38 is pivoted to the upper ends of the pair of left and right second link arms 64, 64 by pins 63, 63. The second link arms 64, 64 are supported, and the lower ends of the second link arms 64, 64 are pin 6
5, 65 are pivotally supported on the intermediate portion of the first link arms 53, 53.

A swing frame 71 in which left and right side plates 71 ₁ and 71 ₁ are connected by an upper plate 71 ₂ is suspended and supported by a lower surface of a connecting member 49 ₂ of the elevating frame 49 so as to be able to swing back and forth via a pivot 72. To be done. Between the lower ends of the left and right side plates 71 ₁ , 71 ₁ of the rocking frame 71, a partially cylindrical cleaning brush holder 73 having one side open is supported by pivots 74, 74 so as to be rockable back and forth. The cleaning brush holder 73 includes a side plate 73 ₁ , an upper plate 73 ₂ and a lower plate 73 _3, and the rotating shaft 76 of the cleaning brush 75 is attached 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 is a cleaning brush 75.
The cleaning brush motor 78 is arranged in the up-down direction on the axis of the rotary shaft 76 and is housed between the left and right side plates 49 ₁ 49 ₁ of the elevating frame 49. There is no danger of protruding and getting in the way.

As best shown in FIG. 8, the rods 81 and 81 pivotally supported by the pins 80 and 80 to the brackets 79 and 79 provided on the inner surfaces of the side plates 49 ₁ and 49 ₁ of the elevating frame 49 are provided. The springs 83, 83 extend between the lower ends of the rods 81, 81 and the upper walls of the spring housings 82, 82 and extend inside the spring housings 82, 82 provided on the upper plate 71 ₂ of the swing frame 71. Is reduced. Therefore, the rocking frame 71 has the spring 8
The elastic force of 3,83 urges 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 491 of the elevating frame 49.
Is connected to a long hole 86 ₁ (see FIG. 3) of a bracket 86 provided on _one side plate 71 ₁ of the swing frame 71 via a pin 87. Therefore, the cleaning brush pressing cylinder 84
8 is driven to extend, the rocking frame 71 can be rocked in the direction of 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
A pair of left and right springs 90, between the cleaning brush holder 73 and the elevating frame 49, so as to abut the 8, 88.
90 is stretched.

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

Next, the operation of cleaning the lower side walls WL ₁ , WL ₂ of the monitoring staff passage with the first cleaning brush unit BU ₁ will be described.

As shown in FIG. 12, the cleaning of the lower side wall WL ₁ of the supervisor passage below the supervisor lane P ₁ on the traveling lane side is performed first.
The cleaning vehicle V ₁ runs along the surveillance staff passage P ₁ from the front side to the back side of the drawing, and the cleaning of the lower side wall WL ₂ of the surveillance staff passage below the overtaking lane side surveillance staff passage P ₂ is also the first cleaning. Car v ₁
Runs through the surveillance staff passage P ₂ from the front side to the back side of the drawing.

When not in use for cleaning, the first cleaning brush unit BU ₁ is stored in the storage position shown in FIGS. 1 and 2. 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 Turn 90 ° to the right in the direction (that is, in the direction of arrow b in FIG. 2). Subsequently, when the lifting 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, 62 swing together in the counterclockwise direction in FIG. As a result, the second connecting link 62, the second upper end connected to the second
The link arms 64, 64 move downward, and the first link arms 53, 53 connected to the lower ends of the second link arms 64, 64 swing downward around the lower pivot 39.

When the first link arms 53, 53 swing downward, the fulcrum pin 5 is inserted into the long holes 53 ₁ , 53 ₁ at the tips thereof.
Lifting frame 49 with 2, 52 locked and suspended
However, the fulcrum pins 52, 52 are moved down along the long holes 53 ₁ 53 ₁ while descending. At this time, the lifting columns 46,
Since the stopper 46 is suspended by suspending the stoppers 54, 54 provided on the upper end thereof on the guide rollers 50, 50 of the elevating frame 49, the elevating columns 46, 46 descend together with the elevating frame 49. That is, the lifting columns 46, 4
6 and the elevating frame 49 are guided integrally by the guide rollers 44 provided on the elevating columns 46, 46 by the guide rails 43, 43 provided on the guide columns 42, 42.

As shown in FIG. 9, when the elevating columns 46, 46 descend and their guide rollers 44, 44 contact stoppers 51, 51 provided at the lower ends of the guide rails 43, 43, the elevating columns 46, 46 reaches the lower limit position and cannot descend any further. When the first link arms 53, 53 swing further downward, the guide rollers 5 are attached to the guide rails 48, 48 of the lift columns 46, 46 stopped at the lower limit position.
The elevating frame 49 guided by 0 ... Further descends. As a result, as shown in FIG. 10, the cleaning brush 75 of the first cleaning brush unit BU ₁ can reach a position facing the lower side wall WL ₁ of the monitoring staff passage.

As described above, since the elevating columns 46, 46 are movably supported by the guide columns 42, 42, and the elevating frame 49 is vertically supported by the elevating columns 46, 46, the guide columns 42, 42 are supported. It is possible to move the cleaning brush 75 sufficiently downward while minimizing the length and reducing the overall height of the first cleaning brush unit BU ₁ . Moreover, the guide columns 42, 42 and the lifting column 4
6 and 46 are vertically arranged near the cleaning brush 75, the cleaning brush 75 including the elevating frame 49 and the like.
A large moment does not act due to the weight of, the strength is advantageous, and the weight can be reduced.

The cleaning brush 75 is attached to the lower side wall WL _{1 of the} surveillance staff passage.
When it reaches the opposite position, the cleaning brush pressing cylinder 84 in FIG. 3 is in an extended state, the long hole 86 ₁ formed in the bracket 86 of the pin 87 swing frame 71 provided at the tip of the output rod 85 11A, the swing frame 71 is in a state of swinging around the pivot 72 in the direction of the arrow a ′ against the elastic force of the springs 83, 83, as shown in FIG. 11 (A). . 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 be resiliently urged by the springs 90, 90 so that the cam members 88, 88 of the elevating frame 49. The cleaning brush 75 supported by the cleaning brush holder 73 and a lower side wall WL ₁ of the monitoring member passage are provided with a predetermined gap by being brought into contact with the cleaning brush holder 73.

From this state, the cylinder 8 for pressing the cleaning brush is pressed.
When 4 is contracted and driven, the rocking frame 71 rocks around the pivot 72 in the direction of arrow a in FIG. 11B due to the elastic force of the springs 83, 83.
The cleaning brush holder 73 pivotally supported via 4, 74 moves to the side wall WL ₁ of the observer passage lower side, and brings the cleaning brush 75 into contact with the lower side wall WL ₁ of the observer passage. Swing frame 7
By swinging the cleaning brush holder 73
4 is an arc c centered on the pivot 72 of the swing frame 71
(See FIG. 3) The guide rollers 89, 89 of the cleaning brush holder 73 move along with this movement while being guided by the cam members 88, 88 having the same shape as the arc c. 73 (that is, the cleaning brush 7
5) contacts the lower side wall WL _{1 of the} observer's passage while maintaining a vertical posture without tilting. As a result, the cleaning brush 75
Can be evenly contacted with the lower side wall WL ₁ of the observer passage to enhance the cleaning effect.

As described above, the cleaning brush 75 is lowered to the height of the monitoring member passage lower side wall WL ₁ and the cleaning brush pressing cylinder 84 is contracted and driven.
Since the cleaning brush 75 can be brought into contact with the monitoring member passage lower side wall WL ₁ with a predetermined surface pressure by the elastic force of 3, the troublesome position control and surface pressure control of the cleaning brush 75 becomes unnecessary. Also, as the first cleaning vehicle V ₁ travels, the lower side wall WL of the surveillance staff passage
_When the distance between the cleaning brush 75 and the cleaning brush 75 is slightly changed or the cleaning brush 75 comes into contact with the protrusion on the lower wall WL ₁ of the surveillance staff passage, the cleaning brush 75 is a long hole of the bracket 86 of the swing frame 71. The lower side wall W of the guard passage in the range of 86 ₁
Since it can escape in the direction away from L ₁ , a large load does not act on the cleaning brush 75 and the cleaning brush pressing cylinder 84.

By rotating the cleaning brush 75 with the cleaning brush motor 78 and running the first cleaning vehicle V ₁ along the rail R while spraying the cleaning water from the cleaning water nozzles 91 ... The cleaning brush 75 can clean the lower side wall WL ₁ of the surveillance staff passage.

Next, when cleaning the lower side wall WL ₂ of the monitoring staff passage, the first cleaning brush unit BU ₁ in FIG.
It is only necessary to turn 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 to both the left and right sides in the traveling direction of the cleaning vehicle V, it is possible to cope with the lower side walls WL ₁ and WL _{2 of} the observer passage on either the left or right side without any trouble.

Although the embodiments of the present invention have been described in detail above, 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 monitoring staff 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 and the third cleaning brush unit BU ₃ that clean U ₂ .

Further, in the embodiment, the posture maintaining means composed of 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 elevating frame 49 side, and the cam member 88 and the guide roller 89 can be provided with a long hole and a pin (or a guide roller) that engages with the long hole. Can be replaced with

Further, in the embodiment, the cleaning brush mounting base is constituted by the lifting frame 49 which rotates and moves up and down with respect to the chassis unit 4, but only a cleaning brush mounting base that swings, a lifting only frame, and a slide only are used. It can be replaced by what is done or a combination of these.

Furthermore, in the embodiment, the cleaning brush holder 73 which constitutes the cleaning brush support member is the cleaning brush 7.
Although it also serves as the cover of FIG. 5, it may simply support the cleaning brush 75.

[0041]

As described above, according to the first aspect of the present invention, the rocking frame is rocked by the drive source in a direction in which the rocking frame moves toward and away from the wall surface. Since the cleaning brush support member pivotally supported by the movable frame moves with the posture maintained by the posture maintaining means, the cleaning brush supported by the cleaning brush support member is evenly distributed on the wall surface of the tunnel. The cleaning effect can be enhanced by bringing them into contact with each other.

According to the second aspect of the present invention,
A posture holding means is provided on one of the cleaning brush mount and the cleaning brush support member, and has a cam member having a shape that follows the movement path of the pivot, and a cam follower provided on the other of the cleaning brush mount and the cleaning brush support member. Since the cam follower is composed of a spring that presses against the cam member, it is possible to move the cleaning brush support member with a simple structure while holding the cleaning brush support member in a fixed posture.

[Brief description of 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;

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

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

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

FIG. 9 is an explanatory view of the action of raising and lowering the cleaning brush.

FIG. 10 is an explanatory view of the action of raising and lowering the cleaning brush.

FIG. 11 is an explanatory view of the action when the cleaning brush is pressed.

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

[Explanation of symbols]

T tunnel WL ₁ Lower side wall (wall surface) of observer passage WL ₂ Lower side wall (wall surface) of observer passage 49 Lifting frame (cleaning brush mount) 71 Swing frame 73 Cleaning brush holder (cleaning brush support member) 74 Axis 75 Cleaning brush 84 cleaning brush pressing cylinder (driving source) 88 cam member (posture holding means) 89 guide roller (cam follower, posture holding means) 90 spring (posture holding means)

Front page continuation (72) Inventor Koichi Matsuki Kyokuenguchi 6-chome Ichiban 45, Nishinomiya City, Hyogo Prefecture Far East Development Co., Ltd.

Claims (2)

[Claims] 1. A tunnel cleaning vehicle for cleaning wall surfaces (WL ₁ , WL ₂ ) of a tunnel (T) with a cleaning brush (75) provided on a cleaning brush mount (49) while traveling in the tunnel (T). In the cleaning brush device, a swing frame (71) swingably supported by the cleaning brush mount (49), and the swing frame (71) on the wall surface (WL ₁ , W
L ₂₎ drive source for swinging toward or away from relative (8
4), a cleaning brush support member (73) which is swingably supported by the swing frame (71) via a pivot (74) and supports the cleaning brush (75), and the cleaning brush support member (73). 73) and the cleaning brush mount (49), the swing frame (7
Posture holding means (88, 89, 90) for keeping the posture of the cleaning brush support member (73) constant during swinging of 1),
A cleaning brush device for a tunnel cleaning vehicle, characterized by being provided with. 2. The cam member (88), wherein the posture holding means is provided on one of the cleaning brush mount (49) and the cleaning brush support member (73) and has a shape that follows the movement trajectory of the pivot shaft (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) to the cam member (88). The cleaning brush device for a tunnel cleaning vehicle according to claim 1, wherein: