JP2017206860A - Bridge inspection car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bridge inspection car capable of allowing passage of other general vehicles without interrupting inspection work when executing an inspection for maintenance of a bridge installed over a river and having an effective width of about 4 m in particular, and capable of relieving a load applied to the bridge.SOLUTION: A bridge inspection car includes a travel device 1 having a belt 11 formed of a belt-like steel plate connected in a ring shape stretched on both front and rear wheels 12 and 12, a vehicle body 2 turnably provided in the horizontal direction relative to the travel device 1, an operation unit 3 fixed to the vehicle body 2, a first boom 4 pivotally provided in the vehicle body 2, a second boom 5 pivotally provided in an end part of the first boom 4 and expandable in the vertical direction, a third boom 6 fixed to an end part of the second boom 5 and expandable in the horizontal direction, and a work bucket 7 which is provided in a tip part of the third boom 6 and on which an operator is placed. The bridge inspection car has a width of 1300-1600 mm.SELECTED DRAWING: Figure 1

Description

  The present invention is used for maintenance and maintenance of bridges built on rivers, roads, railways, canals, etc., especially when maintaining and maintaining bridge girder bottoms and railings for narrow bridges. It relates to the bridge inspection car used for

  Conventionally, an operator is on board to check the safety of the bridge periodically to check whether there are any problems such as cracks or breaks in the bridges built on rivers, roads, canals, etc. Bridge inspection vehicles are used.

  For example, Patent Document 1 discloses that a vertical boom 12 that is erected on a truck body via a swivel 16 and a horizontal boom 14 that is formed in an inverted L shape with the vertical boom 12. There is disclosed a bridge inspection vehicle including a vertical tip boom 20 that is rotatable and expandable in the horizontal and vertical directions at the tip of the horizontal boom 14 and an inspection work platform 30 pivotally supported at the lower end of the vertical tip boom 20. Yes. In addition, the code | symbol in this paragraph has shown the code | symbol in patent document 1. FIG.

Sho 63-107603

  However, of the approximately 230,000 bridges of approximately 700,000 bridges nationwide, the effective width that the vehicle can actually travel is less than 4 m. However, if the effective width is a 4 m bridge, in the bridge inspection vehicle of Patent Document 1, Since the base vehicle is a truck, it has an occupied width of about 2.5m, so even if it is close to the end, only about 1.5m of space is created and it is almost the same as the width of a light vehicle. You can't go through that empty space with a minicar. For this reason, when such a bridge inspection vehicle of Patent Document 1 starts inspection of a bridge having such a narrow effective width, the bridge is occupied throughout the time of about half a day required for inspection, and other vehicles cannot pass. was there. Furthermore, in June 2014, the Ministry of Land, Infrastructure, Transport and Tourism issued a road bridge periodic inspection guideline, and in principle, periodic inspection by proximity visual inspection is carried out once every five years on approximately 700,000 bridges nationwide. For this reason, it is predicted that such trouble that other vehicles cannot pass frequently occurs.

  In addition, there are many bridges with such a small effective width not in urban areas but in the countryside, and it is difficult even to bypass the bridges. And if there is a vehicle that must pass through, such as an emergency vehicle, it is necessary to interrupt the temporary inspection work and move the bridge inspection vehicle from the bridge before passing it. Even inspection cars were very inconvenient.

  Furthermore, since the bridge inspection vehicle of Patent Document 1 has a large body, the weight is large and the weight of the body is applied to four locations where tires with small ground contact areas are located. Therefore, the pressure applied to the bridge is large and affects the durability. There is also concern about giving.

  Therefore, in the present invention, the inspection work is interrupted when performing maintenance and maintenance inspections of bridges that are installed on rivers, roads, railways, canals, etc., and whose effective width is in a small category of about 4 m. It is an object of the present invention to provide a bridge inspection vehicle that can pass other general vehicles and reduce the load applied to the bridge.

  [1] That is, the present invention relates to a traveling device (1) in which a belt (11) formed by joining steel plates in the shape of a belt is bridged between front and rear wheels (12, 12), and the traveling device (1 ) Horizontally provided with respect to the vehicle body (2), a driving part (3) fixed to the vehicle body (2), and a vehicle body (2) pivoted One boom (4), a second boom (5) pivoted at the end of the first boom (4) and extendable in the vertical direction, and fixed to the end of the second boom (5) A third boom (6) that can be expanded and contracted in the horizontal direction, and a working bucket (7) that is provided at the tip of the third boom (6) and carries an operator, have a vehicle width of 1300 to 1600 mm. It is a bridge inspection car characterized by being.

  [2] And attached to the operating section (3), the operation of the traveling device (1), the inclination of the first boom (4), the expansion and contraction of the second boom (5), the third boom (6 The bridge inspection vehicle according to [1], further including an operation unit operation unit (31) capable of operating each of the telescopic expansion and contraction.

  [3] And attached to the working bucket (7), the operation of the traveling device (1), the inclination of the first boom (4), the expansion and contraction of the second boom (5), the third boom ( 6) The bridge inspection vehicle according to [1] or [2], further including a working bucket operation unit (71) capable of operating each of the expansion and contraction of (6).

  [4] And the first hydraulic cylinder (C1) pivoted at both ends to the vehicle body (2) and the first boom (4), the first boom (4) and the second boom (5 The bridge inspection vehicle according to any one of [1] to [3], further including a second hydraulic cylinder (C2) pivoted at both ends.

  According to the bridge inspection vehicle of the present invention, it is necessary to perform inspection for maintenance and maintenance of bridges that are installed on rivers, roads, railways, canals, etc., and whose effective width is in a small category of about 4 m. Even if the work is not interrupted, other ordinary vehicles can pass through and the load on the bridge can be reduced.

It is a right view which shows one Embodiment in the bridge inspection vehicle of this invention. It is a use condition figure in the bridge in one embodiment in the bridge inspection car of the present invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a bridge inspection vehicle according to the present invention will be described in detail based on the attached drawings. Each embodiment described below is a preferred specific example for carrying out the present invention, and thus various technical limitations are made. However, the present invention particularly limits the invention in the following description. Unless otherwise specified, the present invention is not limited to this form. An expression representing a numerical range includes a lower limit and an upper limit.

  As shown in FIGS. 1 and 2, one embodiment of the bridge inspection vehicle of the present invention is a travel device 1 in which a belt 11 formed by joining steel plates in the shape of a belt and spanning between both front and rear wheels 12, 12. A vehicle main body 2 provided so as to be turnable in the horizontal direction with respect to the traveling device 1, a driving unit 3 fixed to the vehicle main body 2, a first boom 4 pivoted on the vehicle main body 3, A second boom 5 pivoted at the end of one boom 4 and extendable in the vertical direction, a third boom 6 fixed at the end of the second boom 5 and extendable in the horizontal direction, and a third boom 6 is provided with a working bucket 7 which is provided at the tip of 6 and carries an operator. And as shown in FIG. 2, the vehicle width which is the space | interval of the belt 11 edge part is 1500 m.

  And in order to adjust the inclination-angle of the 1st boom 4 with respect to the vehicle main body 2, the 2nd boom 5 with respect to the 1st hydraulic cylinder C1 by which both ends were pivoted by the vehicle main body 2 and the 1st boom 4, and the 1st boom 4 The first boom 4 and the second boom 5 are provided with a second hydraulic cylinder pivoted at both ends.

  The traveling device 1 includes a belt 11 in which steel plates are joined in a band shape, two wheels 12 and 12 disposed in a space before and after the belt 11, and wheels 12 and 12 disposed between the wheels 12. It consists of a plurality of auxiliary wheels 13 having a diameter smaller than 12. A part of the belt 11 in contact with the plurality of auxiliary wheels 13 comes into contact with the bridge B. As a result, the weight of the bridge inspection vehicle is distributed over the entire portion where the belt 11 is in contact with the bridge B. Therefore, even if the bridge is in a small category with an effective width of about 4 m, the applied load is distributed. Damage can be mitigated.

  The traveling device 1 is an endless track in which power is transmitted to the belt 11 when the wheel 12 rotates forward or backward by a drive source (not shown) built in the vehicle body 2 and moves forward or backward in the longitudinal direction of the belt 11. It is a member of a formula. And in order to make the vehicle main body 2 turn with respect to the traveling apparatus 1, it connects with the vehicle main body 2 by the turning shaft not shown provided between the belts 11 * 11 in the traveling apparatus 1. FIG. The drive source used is a diesel engine, and the motive power obtained from the diesel engine is converted into oil pressure by a hydraulic pump, and the vehicle 12 is driven by rotating the wheel 12 by this oil pressure. 2 is turned, and the first boom 4, the second boom 5, and the third boom 6 are operated.

  Further, as described above, in the present embodiment, the vehicle width that is the distance between the belt 11 ends is 1500 m, but in other embodiments, it is preferably 1300 to 1600 mm. If the vehicle width is within this range, the bridge inspection vehicle will not fall down even if the worker H works on the bucket, and the effective width is about 4m. However, it is possible to pass other general vehicles without interrupting the inspection work.

  The vehicle body 2 is a member provided so as to be able to turn in the horizontal direction with respect to the traveling device 1 via a turning shaft (not shown) provided vertically upward on the traveling device 1, and includes a first boom 4 and a second boom 5. , A member serving as a base of the third boom 6. In the present embodiment, the vehicle body 2 has a substantially rectangular parallelepiped shape, and the first boom 4 and the first hydraulic cylinder C1 are pivotally provided at the end portions thereof so as to be inclined. The vehicle body 2 includes a drive source (not shown).

  The driving unit 3 includes a driving unit operating unit 31 for the operator H to perform operations of the travel device 1, the tilt of the first boom 4, the expansion and contraction of the second boom 5, and the expansion and contraction of the third boom 6, and the operator A driver's seat 32 for H to sit on and a roof 33 that protects the worker H from tight sunlight and falling objects from the sky. In the present embodiment, the operation unit operation unit 31 includes a plurality of operators H that are manually operated to move the bridge inspection vehicle in the front-rear direction, turn the vehicle body 2, and tilt the first boom 4. A plurality of buttons for extending and retracting the lever and the second boom 5 and extending and retracting the third boom 6 are provided. In the present embodiment, the roof 33 is provided in the operating unit 3, but the roof 33 may not be provided in other embodiments.

  The first boom 4 has one end pivoted with respect to the vehicle body 2 and the other end pivotally pivoted with respect to the second boom 5. Arm material curved in a shape. The ends of the first hydraulic cylinder C1 and the second hydraulic cylinder C2 are attached in the middle of the first boom 4 and rotate with respect to the vehicle body 2 and the second boom 5 by expansion and contraction of the respective hydraulic cylinders. The tilt angle can be adjusted. Moreover, since the first boom 4 is curved, the vehicle height of the bridge inspection vehicle can be lowered,

  The second boom 5 is an arm member that has one end pivoted with respect to the first boom 4 and the other end fixed to the third boom 6 and capable of extending and contracting in the vertical direction. The end of the second hydraulic cylinder C2 is attached to one end of the second boom 5, and the tilt angle can be adjusted by rotating with respect to the first boom 4 by expansion and contraction of the hydraulic cylinder. And the 2nd boom 5 is provided with the elongate substantially rectangular parallelepiped shape, and also the oil pressure converted from the motive power obtained from the drive source by having an elongated substantially rectangular parallelepiped shaped member slightly smaller in the inside. The second boom 5 can be expanded and contracted by taking in and out the elongated member inside. Since the elongated member inside the second boom 5 is fixed to the third boom 6, the third boom 6 and the working bucket 7 can be moved vertically in the vertical direction.

  The third boom 6 is an arm member that is fixed to the second boom 5 at one end, is fixed to the working bucket 7 at the tip that is the other end, and can be expanded and contracted in the horizontal direction. Similar to the second boom 5, the third boom 6 has an elongated substantially rectangular parallelepiped shape, and further has an elongated substantially rectangular parallelepiped member that is slightly smaller in the inside thereof, so that the power obtained from the drive source is obtained. The third boom 6 can be expanded and contracted by taking in and out the elongated member inside with the hydraulic pressure converted from. Since the third boom 6 is fixed at a substantially right angle to the second boom 5, that is, at an angle of about 85 to 95 degrees, the working bucket 7 fixed at the distal end side of the third boom 6 is horizontally disposed. Can be moved in the direction.

The working bucket 7 is a bowl-like or container-like member that is provided at the tip of the third boom 6 and on which an operator is placed. In this embodiment, the working bucket has a bowl-like shape to the extent that a fence is provided, and has only a space where one person can work while standing in order to reduce weight and size. In general, the working bucket 7 preferably has a width of about 1 to ³ m ² .

  The working bucket operation unit 71 includes a plurality of levers that are manually operated by the worker H to move the bridge inspection vehicle in the front-rear direction, turn the vehicle body 2, and tilt the first boom 4. A plurality of buttons for expanding and contracting the second boom 5 and expanding and contracting the third boom 6 are provided. In another embodiment, for further weight reduction, a control system that controls the turning of the vehicle body 2, the inclination of the first boom 4, and the expansion and contraction of the second boom 5 and the third boom 6 inside the vehicle body 2. As a working bucket operation unit 71, a remote controller used for a model toy such as a radio control that can be operated by remote control wirelessly with the control system can be used.

  By loading the bridge inspection vehicle of the present invention on another vehicle, the vehicle can be transported to the work site and visually inspected by one or two workers. At this time, especially when performing maintenance for maintenance and maintenance of bridges with an effective width of about 4 m, it is possible to pass other ordinary vehicles without interrupting the inspection work. The load can be relaxed.

DESCRIPTION OF SYMBOLS 1 ... Traveling device 11 ... Belt 12 ... Wheel 13 ... Auxiliary wheel 2 ... Car body 3 ... Driving part 31 ... Driving part operation part 32 ... Driver's seat 33- .. Roof 4 ... First boom 5 ... Second boom 6 ... Third boom 7 ... Working bucket 71 ... Working bucket operating part C1 ... First hydraulic cylinder C2 ..Second hydraulic cylinder B ... Bridge H ... Worker

Claims (4)

A traveling device that connects steel plates in a belt shape and hangs a belt in the form of a wheel on both front and rear wheels,
A vehicle body provided to be turnable in a horizontal direction with respect to the traveling device;
A driving unit fixed to the vehicle body;
A first boom pivoted on the vehicle body;
A second boom pivoted at the end of the first boom and extendable in the vertical direction;
A third boom fixed to the end of the second boom and extendable in the horizontal direction;
A working bucket provided at the tip of the third boom for carrying an operator;
Bridge inspection vehicle characterized by having a vehicle width of 1300 to 1600 mm. It is attached to the operation part, and comprises an operation part operation part capable of operating each of the operation of the traveling device, the inclination of the first boom, the expansion and contraction of the second boom, and the expansion and contraction of the third boom. The bridge inspection vehicle according to claim 1. A working bucket operation unit attached to the working bucket and capable of operating each of the operation of the traveling device, the inclination of the first boom, the expansion and contraction of the second boom, and the expansion and contraction of the third boom; The bridge inspection vehicle according to claim 1 or 2, characterized by the above. A first hydraulic cylinder pivoted at both ends to the vehicle body and the first boom;
The bridge inspection vehicle according to any one of claims 1 to 3, further comprising a second hydraulic cylinder pivoted on both ends of the first boom and the second boom.

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