JPS63107603A - Bridge inspection vehicle - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a bridge inspection vehicle, and more specifically,
This relates to a bridge inspection vehicle used for maintenance (repainting, etc.) and inspection of the bottom or side surfaces of bridge girders.

[Prior Art] As shown in FIGS. 22 and 23, a conventional inspection vehicle of this type is a vehicle equipped with a horizontally rotating turret a. a first frame member C pivotably mounted on one edge of the turret a so as to be pivotable in a vertical plane toward a vertical position outside one end of the first frame member C; a second frame member d capable of sliding movement in the longitudinal direction of the first frame member C when the frame member d is in a vertical position; a third frame member e pivotally supported by a second frame member d at the lower end of the frame member d, and a third frame member e at the lower end of the third frame member e and below the level of the vehicle; A scaffolding member f extending laterally from
(Refer to Publication No.-126820).

[Problems to be Solved by the Invention] However, in the conventional bridge inspection vehicle of this type, the range of movement of each component such as the turret a, frame members ce and scaffolding members f is large, so it cannot be used on expressways. There was a problem in that it could not be used when there were surrounding buildings or parallel bridges. In addition, since each component itself is large, the vehicle to be mounted is necessarily a large vehicle, and the overall size is large, making it impossible to use on expressways in large cities or relatively small bridges. Furthermore, the inspection speed was slow, which not only caused inefficiency but also had a negative impact on other means of transportation.

[Means for Solving the Problems] This invention was made in view of the above-mentioned circumstances, and in order to solve the above-mentioned technical problems, each component is made as small as possible, and by small movement it can be easily moved when not in use. It is an object of the present invention to provide a bridge inspection vehicle which is characterized in that it can rotate and extend from a stored state to when in use, thereby enabling maintenance and inspection of the bottom surface, side walls, etc. of the IT.

That is, the present invention provides a rotating section for attaching at least a horizontal boom of a vertical base boom and a horizontal boom formed in an inverted shape so as to be rotatable in a horizontal direction with respect to a vehicle body; and a telescopic vertical boom that is rotatably mounted in the vertical direction, and an inspection workbench that has one end pivoted to the lower end of the vertical boom so as to be rotatable in the vertical direction. The aim is to provide a bridge inspection vehicle that will

In this invention, the swivel unit may be any type as long as it rotates at least the horizontal boom in the horizontal direction with respect to the vehicle body, but the swivel unit is a swivel base installed between the vertical base boom and the horizontal boom. Or, more preferably, it is a slewing bearing mounted between the vertical base boom and the horizontal boom. Although the vertical boom may be a fixed type having a predetermined height, it is preferably a telescopic boom that can be raised and lowered, and the horizontal boom has a predetermined length. Although it may be of a fixed type, it is preferable to form it with a telescopic boom that is extendable and retractable. The inspection workbench is composed of a deck and a fence erected around the deck, and it is preferable that the vertical boom be retracted into the fence when the vertical boom is not in use. The inspection workbench may be of any type as long as its one end side is rotatably supported in the vertical direction at the lower end of the vertical tip boom, but it is preferably a rotatable workbench attached to one side edge of the deck. It is better to install an auxiliary deck, or to install a telescoping tip workbench on the side opposite to the pivot end of the vertical tip boom.

[Effect] The above technical means works as follows.

The rotation of the vertical base boom and horizontal boom by the swivel unit moves the vertical base boom and inspection work platform to a predetermined horizontal position.
Vertical rotation or extension of the vertical boom moves the inspection platform to a vertical inspection position. Then, the inspection workbench is rotated and moved to a position to be inspected by the rotation of the vertical boom in the horizontal direction.

[Examples] Examples of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a side view showing the first embodiment of the bridge inspection vehicle of the present invention when not in use, and FIGS.
FIG. 3 shows a top view and a rear view of the figure. The bridge inspection vehicle of the present invention has a swing section that is mounted on a vehicle body 10 in order to rotate a vertical base boom 12 and a horizontal boom 14 formed in an inverted shape in a horizontal direction with respect to the vehicle body 10. stand 16
and a telescopic vertical tip boom 20 that is rotatably mounted on the tip of the horizontal boom 14 in horizontal and vertical directions;
The main part is constituted by an inspection workbench 30 whose one end side is rotatably supported in the vertical direction at the lower end of the vertical tip boom 20.

The vertical main boom 12 is formed of a telescopic boom that can be raised and lowered and includes a vertical main boom base 12a and a telescopic boom 12b. A member 24 is attached to the tip of the horizontal boom 14, which is connected at right angles to the upper end of the vertical base boom 12, via a swing bearing 22 so as to be rotatable in the horizontal direction. A vertical front boom 20 is attached to the vertical front boom 24 so as to be rotatable in the vertical direction via a first bin 26, and a first hydraulic cylinder 41 is installed between the swing bearing 22 and the vertical front boom 20. .

In this case, the base end of the first hydraulic cylinder 41 and the distal end of the piston rod 42 are attached to the swing bearing 22 and the vertical boom 20 with pins 43 and 44, respectively, so that the expansion and contraction movements of the first hydraulic cylinder 41 Accordingly, the vertical boom 20 can rotate in the vertical direction. Further, a pair of left and right mounting plates 28, 28 are fixed to the lower end of the distal end side of the telescopic boom 21 on the distal end side of the vertical tip boom 20, and a second bin 27 is attached to the plates 28, 28, respectively. One end side of the inspection workbench 30 is rotatably supported in the vertical direction via the .27, and a second hydraulic cylinder 45 is provided between the tip of the telescopic boom 21 and the inspection workbench 30
has been erected. In this case, the inspection workbench 30 is
A deck 32 and a fence 34 erected around the deck 32
The upper mounting member 36 is attached to the upper side of the fence 34 on both sides of the one end side connected to the vertical tip boom 20, and the mounting plate 28 is pivoted by the second bin 21. The base of the second hydraulic cylinder 45 and the mounting plate 28 and the tip of the piston rod 46 and the lower mounting member 38 attached to the lower part of one end of the inspection workbench 30 are connected via pins 47 and 48, respectively. There is. Therefore, as the second hydraulic cylinder 45 expands and contracts, the inspection workbench 3
0 rotates in the vertical direction, moves to a predetermined vertical position on the bridge 50, and hangs (see FIG. 4).

As described above, the horizontal boom 14 and the vertical tip poom 20 are pivotally connected by the first bin 26, and the first hydraulic cylinder 41 is installed between the horizontal boom 14 and the vertical tip poom 20, and , the lower end of the vertical boom 20 and the inspection work platform 30
and a second hydraulic cylinder 45 between the vertical boom 20 and the inspection workbench 30.
As shown in FIGS. 6 to 9, by constructing a
A movement to a vertical position of 0 can be performed. That is,
When the extended first hydraulic cylinder 41 is contracted in the state shown in FIG.
Furthermore, when the first hydraulic cylinder 41 is contracted and the second hydraulic cylinder 45 is extended, the inspection workbench 30 is lowered while maintaining a horizontal state (see FIG. 8).
. Then, when the vertical forward boom 20 is lowered to the vertical state, the inspection work platform 30 becomes perpendicular to the vertical forward boom 20 (see FIG. 9).

On the other hand, the vehicle body 10 is provided with a pair of mounting frame members 11.11 on which the inspection workbench 30 is placed when not in use, and auxiliary jacks 13 and auxiliary wheels are provided on both front and rear sides of the vehicle body 10. Outriggers with 15 17° 17...
・ is attached to the vehicle body 10, and when in use, the outriggers 1
7 protrudes from the vehicle body 10, the auxiliary jacks 13 are extended and the auxiliary wheels 15 are in contact with the road surface 52, and the inspection workbench 30 is set at a predetermined inspection position.
It is designed so that it can be moved for inspection, etc. (see Figure 5).

In addition, in the above embodiment, the vertical base boom 12 and the horizontal boom 1
4 are fixed in an inverted shape and the horizontal boom 14 rotates in the horizontal direction with respect to the vehicle body 10 by the rotation of the swivel base 16. Although not limited thereto, as shown in FIG. 10, a swing bearing 16a is mounted between the upper end of the vertical light boom 12 fixed to the vehicle body 10 and the horizontal boom 14 and rotated by a drive source (not shown). The horizontal boom 14 may be rotated in the horizontal direction. Further, in the above embodiment, the horizontal boom 14 is of a fixed type, but the horizontal boom 14 does not necessarily have to be of a fixed type, and may be a telescopic boom that is extendable and retractable.

Next, the operation mode when inspecting a bridge 50 using the bridge inspection vehicle of the present invention configured as described above will be explained in FIGS. 11(a), (b) to 15(a), ( b)
Explain with reference to.

■As shown in Figures 11(a) and (b), the designated bridge 5
After stopping the vehicle body 10 at the inspection location 0, the outrigger 17
Set.

■Extend the vertical boom 12 to raise the inspection workbench 30 from the mounting frame member 11, and rotate the swivel base 16 or the swivel bearing 16a to move the horizontal boom 14, vertical boom 20, and inspection workbench 30 up. In order to move horizontally (see FIGS. 12(a) and 12(b)), the horizontal boom 14 and the inspection workbench 30 are hung at right angles.

■ Contract the first hydraulic cylinder 41 that was in the extended state to rotate the vertical boom 20 in the vertical direction, and at the same time extend the second hydraulic cylinder 45 to lower the inspection work platform 30;
Make the vertical boom 20 and inspection work platform 30 at right angles (
(See FIGS. 13(a), (b) and FIGS. 14(a), (b)).

■ After extending the vertical boom 20 and moving the inspection work platform 30 to a predetermined vertical position, rotate the vertical boom 20 horizontally to move the inspection work platform 30 to a predetermined inspection position. (See Figures (a) and (b)).

After the inspection work is completed, the inspection workbench 30 can be stored on the vehicle body 10 by performing the reverse operations of the above operations (1) to (2).

The above explanation is about the case where the inspection workbench 30 is moved to the lower side of the bridge 50 to inspect and maintain the lower side of the bridge 50, but the bridge inspection vehicle of the present invention is not necessarily used for inspecting and maintaining the lower side of the bridge 50. For example, as shown in FIGS. 16(a) to 19<a> to 19(C), the vertical light boom 12 may be extended to a predetermined height, or The light boom 12 can be extended to a predetermined height, and the horizontal boom 14 and the inspection workbench 30 can be rotated in the horizontal direction to be used for inspection and maintenance of the side surfaces of the bridge 50, handrails, lighting lights, etc.

FIG. 20 is a sectional view showing a second embodiment of the present invention, in which an auxiliary deck 35 is attached to an inspection workbench 30. That is, the auxiliary deck 35 is rotatably attached to one side edge of the deck 32 of the inspection workbench 30 with a hinge (not shown), and after the auxiliary deck 35 is rotated vertically and held in a horizontal state during use, Prefabricated columns 37 are erected on three sides of the auxiliary deck 35 other than the inspection workbench 30 side, and the bridge 5
This is a case where it is possible to perform inspection of 0, etc. By adding the rotary auxiliary deck 35 in this way, the bridge 50
It becomes possible to inspect and maintain narrow places such as the lower surface stepped portion 54 of.

In the second embodiment, the horizontal boom 14 is a telescopic boom that is extendable and retractable, and is composed of a horizontal boom base 14a and a telescoping boom 14b.

Further, other parts in the second embodiment are the same as those in the first embodiment, so the same parts are given the same reference numerals and the explanation thereof will be omitted.

FIG. 21 shows a third embodiment of the present invention, in which an inspection workbench 30 is equipped with a telescopically extendable end workbench 31. That is, the tip workbench 3 is attached to the end of the inspection workbench 30 opposite to the pivot end of the vertical tip boom 20.
1 is attached in a telescopic manner, and the tip workbench 31 is extended from the inspection workbench 30 as necessary. In this way, by providing the tip workbench 31 that telescopes from the inspection workbench 30, inspection and
The scope of maintenance can be expanded, allowing inspection and inspection of wide bridges, etc.
Maintenance becomes easier.

In the third embodiment, the rounded parts are the same as those in the first embodiment, so the same parts are given the same reference numerals and the explanation thereof will be omitted.

[Effects of the Invention] As explained above, according to the bridge inspection vehicle of the present invention, at least the horizontal boom of the vertical light boom and the horizontal boom formed in an inverted shape is arranged horizontally with respect to the vehicle body. A swivel unit that is rotatably mounted, a telescoping vertical boom that is rotatably mounted on the tip of the horizontal boom in horizontal and vertical directions, and one end side that is pivoted to the lower end of the vertical boom so that it can rotate in the vertical direction. Since it is composed of a supported inspection workbench, the following effects can be obtained.

1) Since the range of motion of each component can be reduced, inspection and maintenance of the bridge can be easily performed even when there is little surrounding space.

2) Since the movement of each component is small, it can be quickly set in a used state or stored in a non-used state, and inspection efficiency can be improved.

3) Each component can be made smaller and can be stored when not in use, so it can be made smaller and easier to transport.

4) The above 3) makes it possible to reduce the weight, so it can be mounted on medium-sized vehicles, and it can also be used on expressways and two-lane bridges, and it also improves inspection efficiency, making it suitable for other transportation systems. can reduce the hindrance to

5) According to 1) to 4) above, manufacturing costs, inspection/maintenance costs, and management costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a first embodiment of a bridge inspection vehicle of the present invention, Figs. 2 and 3 are a plan view and rear view of Fig. 1, respectively, and Figs. 4 and 5 are respectively a bridge inspection vehicle. 6 to 9 are schematic side views showing the operation mode of the vertical boom and inspection work platform in the present invention when the vehicle is in use, and FIG. 10 is a rear view and a perspective view showing the vehicle in use. Schematic side view showing another form of the turning part, FIG. 11(a)
, (b) to 15(a), (b) are a schematic side view and its plan view showing the operating state when inspecting the underside of a bridge, respectively, and FIGS. 16(a) to (C) to 19(a) to (C) are a side view, a plan view, and a rear view showing different states when inspecting the side walls of a bridge, respectively, and FIG. 20 shows a state in which the second embodiment of the present invention is used. Rear view shown, second
Figure 1 is a rear view showing the state of use of the third embodiment of the present invention;
FIGS. 22 and 23 are rear views showing the state in which a conventional bridge inspection vehicle is used. Description of symbols (10)...Vehicle body (12)...Vertical boom (12a)...Vertical boom base (12b)...Telescopic boom (14)...Horizontal boom (14a)... Horizontal boom base (14b)...Telescopic boom (16)...Swivel base (swivel part) (16a)...Swivel bearing (swivel part) (20)
...Vertical tip boom (21)...Telescopic boom (26)...First pin (27)...Second pin (30)...Inspection workbench (31)...Tip work Base (32)...Deck (34)...Fence (35>...Auxiliary deck (41)...First hydraulic cylinder (45)...Second hydraulic cylinder Patent applicant Representative of Nippon Light Kinku Co., Ltd.
Patent Attorney Tomohiro Nakamura (2 others) Figure 2 Figure 3 Figure 4 Figure 1 Figure 6 Figure 7 Figure 9 Figure 11 B) (b) Figure 12 (a) (b) Figure 14 (a) (b) j Figure 15 (a) (b) 2 (a) (C) Figure 17 (b) Figure 21 Figure 31 ゛ First pigeon %t♂

Claims (8)

[Claims] (1) A swiveling section that attaches at least the horizontal boom of the vertical base boom and horizontal boom formed in an inverted L shape so as to be rotatable in the horizontal direction with respect to the vehicle body; A bridge characterized by comprising: a telescopic vertical boom rotatably mounted on the vertical boom; and an inspection workbench whose one end side is rotatably supported in the vertical direction at the lower end of the vertical boom. Inspection car. (2) The bridge inspection vehicle according to claim 1, wherein the swivel portion is a swivel stand mounted between the base of the vertical main boom and the vehicle body. (3) The bridge inspection vehicle according to claim 1, wherein the swing portion is a swing bearing mounted between a vertical main boom and a horizontal boom fixed to the vehicle body. (4) The bridge inspection vehicle according to claim 1, wherein the vertical boom is a telescopic boom that can be raised and lowered. (5) The bridge inspection vehicle according to claim 1, wherein the horizontal boom is a telescopic boom that is extendable and retractable. (6) A patent in which the inspection workbench is composed of a deck and a fence erected around the deck, and the vertical tip boom can be stored within the fence when the vertical tip boom is not in use. A bridge inspection vehicle according to claim 1. (7) The bridge inspection vehicle according to claim 6, wherein the inspection workbench has a rotary auxiliary deck on one side edge of the deck. (8) The bridge inspection vehicle according to claim 6, wherein the inspection workbench includes a tip workbench that extends and retracts in a telescopic manner on the side opposite to the pivot end side of the vertical tip boom.