JP3611488B2 - Boom type aerial work platform - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a boom type aerial work vehicle constructed by attaching a swivel for turning a boom to the rear of a chassis behind a driver seat.
[0002]
[Prior art]
Conventionally, when carrying out construction work such as work at high places, in addition to work vehicles that actually carry out construction work, transport vehicles have also been used in order to carry equipment and tools necessary for work. There is a movement to reduce the number of vehicles required for construction work and improve efficiency (cost reduction) by carrying equipment and other equipment on the work vehicle itself.
[0003]
For this reason, the above-described boom type aerial work vehicle is also provided with a tool box for storing tools necessary for work, and is generally installed in a region between the driver's seat and the swivel on the chassis. In order to achieve the above efficiency sufficiently, it is desirable that all equipment and tools can be transported by one work vehicle. The height of the tool box is increased or the tool box is stacked in multiple stages up and down. The storage volume is increased.
[0004]
[Problems to be solved by the invention]
However, the method of increasing the storage volume by increasing the height of the tool box as described above has a limit in consideration of the balance with the operation area of the boom, and in order to avoid interference with the boom, the mounting position of the boom must be set. It is necessary to move it upward, but in such a case, the height of the vehicle becomes high and the stability of the vehicle body becomes worse, or it becomes impossible to pass on the work site where the ceiling is low and the work range is narrowed etc. The problem comes out.
[0005]
The present invention has been made in view of such problems, and it is possible to increase the tool storage volume without increasing the height dimension of the tool box and without affecting the stability and work range of the work vehicle. Accordingly, it is an object of the present invention to provide a boom type aerial work vehicle capable of reducing the cost by reducing the number of vehicles.
[0006]
[Means for Solving the Problems]
In order to achieve such an object, a boom type aerial work vehicle according to the present invention includes a vehicle body having a chassis behind the driver's seat, a swivel provided at the rear of the chassis, and an upward extending from the swivel. An attached and swivelable strut, a boom that is attached to the strut and can be raised and lowered, a work table provided at the tip of the boom and placed above the driver's seat when stored, and a driver's seat on the chassis; It has a front tool box provided in a region between the swivel base and the support column, and a rear tool box provided in a side region of the swivel stand and the support column on a chassis. . Furthermore, lateral dimension of the swivel base and a rear tool box so as not to interfere with the pivoting motion of the struts, is smaller than lateral dimension of the front tool box located in front of the rear tool box, the operator from the rear of the chassis is You can get on and off the chassis. Here, the tool box (front tool box and rear tool box) means a box-shaped member for storing equipment and tools necessary for work, and one side is opened when it is a sealed type having a door. It doesn't matter if it is an open type.
[0007]
In the boom type work vehicle having such a configuration, a tool box (front tool box) is provided in a region between the driver's seat and the swivel on the chassis, and a tool box is also provided in a lateral region of the swivel on the chassis. (Rear tool box), so the entire tool box is more than the conventional aerial work vehicle where the tool box is provided only in the area between the driver's seat on the chassis , the swivel base and the column . The total storage capacity can be increased. In particular, by setting the left and right dimensions of the rear tool box smaller than the left and right dimensions of the front tool box located in front of the rear tool box, the rear tool box is installed while ensuring a sufficient storage capacity of the front tool box. It is possible. For this reason, it becomes possible to mount a larger amount of equipment and tools necessary for work than before, and construction work can be performed without using a vehicle for transporting equipment. As a result, the number of owned vehicles can be reduced to reduce the cost. Further, in such a configuration, the tool storage capacity is increased without increasing the height of the tool box (corresponding to the front tool box) in the region between the driver's seat on the chassis and the swivel. There is no need to move the boom mounting position upward, and there is no inconvenience that the stability of the vehicle body is impaired or that the working range is narrowed by restricting the passage at a work site with a low ceiling.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a boom type aerial work vehicle (hereinafter referred to as an aerial work vehicle) 1 according to the present invention. The aerial work vehicle 1 has a driver's seat 11 and a chassis 12 provided at the rear thereof, and a vehicle body 10 capable of traveling on roads by tire wheels 13; a swivel base 20 provided on the chassis 12; A boom 30 is attached to a support column 21 extending upward from a table 20 with a foot pin 22 and can be raised and lowered by a raising and lowering cylinder 23, and a work table 40 provided at the tip of the boom 30. Has been.
[0009]
Jacks 14 are provided on the front, rear, left and right of the vehicle body 10 so that the vehicle body 10 can be stably supported by projecting downward by manually operating a jack operation lever (not shown) installed behind the chassis 12. It has become.
[0010]
The swivel base 20 can be swung horizontally by a swivel motor 24 provided in the vehicle body 10, thereby enabling the boom 30 to swivel 360 degrees. A plurality of boom members are nested in the boom 30 and can be expanded and contracted by a built-in telescopic cylinder 31. The work table 40 is attached through a vertical post 32 that is provided at the tip of the boom 30 and is always kept in a vertical state, so that the floor surface of the work table 40 is always kept horizontal. Yes. Further, the work table 40 is rotatable with respect to the vertical post 32 and can be vibrated by a swing motor 41 provided in the work table 40.
[0011]
An operating device 42 is provided on the work table 40, and the boom 30 can be raised, retracted, swiveled, and the work table 40 can be swung by manually operating the levers provided therein. It has become.
[0012]
In addition, as shown in detail in FIG. 2 (illustration of the column 21, the boom 30, the work table 40, etc. is omitted in this FIG. 2) Is provided with a front tool box composed of first to third tool boxes 61, 62, 63, and a rear region composed of fourth and fifth tool boxes 64, 65 in the lateral region of the swivel base 20 on the chassis 12. A tool box is provided. As can be seen from the drawing, the left and right dimensions of the rear tool box are smaller than the left and right dimensions of the front tool box positioned in front of the rear tool box. The tool box (front tool box and rear tool box) is a box-like member for storing equipment and tools necessary for work, and one side is opened when it is a sealed type with a door. It doesn't matter if it is an open type.
[0013]
Here, the first tool box 61 and the second tool box 62 are hermetic type tool boxes configured in an up-and-down open / close door type, and in the region between the driver's seat 11 and the swivel base 20 on the chassis 12. In the left area, it is provided in two upper and lower layers. The third tool box 63 is an open-type tool box used as a loading platform whose upper side is opened, and is provided in the right region of the region between the driver's seat 11 and the swivel base 20 on the chassis 12. . The fourth tool box 64 is a hermetic tool box configured as an upper and lower door type, and is provided in the left region of the side region of the swivel base 20 on the chassis 12. The same sealed fifth tool box 65 as the tool box 64 is provided in the right region of the side region of the swivel base 20 on the chassis 12. The side plate 63a of the third tool box 63 can be opened and closed with a hinge (not shown) provided at the lower part thereof as a fulcrum, so that the third tool box 63 can be accessed from the side of the vehicle body 10. It has become.
[0014]
In addition, a boom receiver 71 for placing the boom 30 and a work platform receiver 72 for placing the work table 40 when the boom 30 is retracted are provided immediately behind the driver's seat 11. A step 73 is provided for the person to get on and off the chassis 12. In addition, a battery 74 is attached to the side of the chassis 12 corresponding to the lower part of the fourth tool box 64 located on the left side of the swivel base 20, and work is performed on the side of the chassis 12 corresponding to the lower part of the first tool box 61. A tread plate 75 is provided for a person to access the second tool box 62.
[0015]
In order to perform work at a high place using the aerial work vehicle 1 having such a configuration, an operator first drives from the driver's seat 11 to travel on the road and moves the high work vehicle 1 to the work site. Let Here, when traveling on the road, the boom 30 is tilted forward in a fully contracted state, the boom 30 is placed on the boom receiver 71, and the lower surface of the work table 40 is placed on the work table 40 receiver 72. (Refer to the diagram indicated by the two-dot chain line in FIG. 1).
[0016]
When the operator arrives at the work site, the operator operates the jack operation lever behind the chassis 12 (not shown) to project each jack 14 and support the vehicle body 10. When the vehicle body 10 is supported by the jack 14, the worker goes up from the step 73 onto the chassis 12 and gets on the work table 40 along the upper surfaces of the tool boxes 64, 61, 62. Then, the levers are operated from the operation device 42 to raise and lower the boom 30, extend and turn, and swing the work table 40 to move the work table 40 to a desired high position to perform work at a high place.
[0017]
Here, in the boom type aerial work vehicle 1 according to the present invention, a tool box (a front tool box, which is a first tool box to a third tool box) in a region between the driver's seat 11 and the swivel base 20 on the chassis 12. 61, 62, 63) and also a tool box (rear tool box, fourth tool box 64 and fifth tool box 65) in the lateral region of the swivel base 20 on the chassis 12. The total storage capacity of the entire tool box can be increased as compared with the conventional aerial work vehicle in which the tool box is provided only in the region between the driver's seat 11 and the swivel base 20 on the chassis 12. For this reason, it becomes possible to mount a larger amount of equipment and tools necessary for work than before, and construction work can be performed without using a vehicle for transporting equipment. As a result, the number of vehicles owned can be reduced to reduce costs.
[0018]
In such a configuration, the tool storage volume is increased without increasing the height of the tool box (corresponding to the front tool box) in the region between the driver's seat 11 and the swivel base 20 on the chassis 12. Therefore, there is no need to move the mounting position of the boom 30 upward, the stability of the vehicle body 10 is impaired, or the working range is narrowed by restricting the passage at a work site with a low ceiling. Absent. Further, the left and right dimensions of the rear tool box are smaller than the left and right dimensions of the front tool box located in front of the rear tool box (the left and right dimensions of the front tool box are L1, and the rear tool box If the left-right dimension is L2, L1> L2), the rear tool box can be installed while ensuring a sufficient storage capacity of the front tool box.
[0019]
Further, in a vehicle in which a tool box (corresponding to a rear tool box) is not provided on the side of the swivel like the conventional boom type aerial work vehicle 1, the step for the operator to move up and down to the stand is swiveled. Generally, the battery is provided in the lower part of the chassis at the side of the platform, and the battery is provided in front of it, that is, around the center of the side of the chassis. Since it is provided in the back part of the chassis 12, it can also be installed in the side position of the turntable 20 where the conventional step was provided, and the freedom degree of selection of the installation position of the battery 74 becomes large.
[0020]
Furthermore, in the boom type aerial work vehicle 1 according to the present invention, a tool box is provided in a region between the driver's seat 11 and the swivel base 20 on the chassis 12 and in a lateral region of the swivel base 20 on the chassis 12. If it is provided, the above-described effect is obtained, so that the shape of the tool box installed in the region between the driver's seat 11 and the swivel base 20 on the chassis 12 is not particularly limited. For example, unlike the aerial work vehicle 1, it is not necessarily divided into two left and right (first and second tool boxes 61 and 62 and third tool box 63). One tool box may be provided in the entire region between the two. Further, the shape and configuration of the tool box are not particularly limited. For example, the tool box may be a sealed type (for example, the first tool box 61) having a door, or may be an open type (for example, the third tool box 63) having one surface opened.
[0021]
Further, if the boom 30 is retracted in a procedure in which the boom 30 in the fully contracted state is raised to a retracted position from a state where the boom 30 is raised to a certain extent, a portion corresponding to the path of the boom 30 at the time of the fall is avoided. The height of the tool box installed in the area between the driver's seat 11 and the swivel base 20 does not need to be lower than the height of the boom 30 during storage as shown in FIG. That is, when viewed from the side of the vehicle body 10, the height of the tool box in the region between the driver's seat 11 and the swivel base 20 may be higher than the lower surface of the boom 30 in the retracted state. In this way, the tool storage capacity is further increased.
[0022]
In addition, when the tool boxes are stacked one above the other, it is not limited to two upper and lower stacks such as the aerial work vehicle 1 (for example, the first tool box 61 and the second tool box 62). It is also possible to superimpose on more than steps. Further, as in the tool box 80 shown in FIG. 3, the lower stage may be a sealed tool box 81, and the upper stage may be an upwardly open tool box 82. Further, the hermetically sealed tool box is not limited to the above-mentioned top / bottom open / close door type, but can be of other types, for example, a left / right open / close type, a pull-out type, etc. It is possible. Moreover, it is preferable that the tool box provided on a chassis is detachable with respect to a chassis.
[0023]
【The invention's effect】
As described above, the boom type aerial work vehicle according to the present invention has a tool box (front tool box) in the region between the driver's seat and the swivel on the chassis, and the swivel of the swivel on the chassis. Since it has a tool box (rear tool box) also in the side area, it is more tool than the conventional aerial work vehicle where the tool box was provided only in the area between the driver's seat and the swivel on the chassis. The total storage capacity of the entire box can be increased. In particular, by setting the left and right dimensions of the rear tool box to be smaller than the left and right dimensions of the front tool box located in front of the rear tool box, the rear tool box is installed while ensuring a sufficient storage capacity of the front tool box. It is possible. For this reason, it becomes possible to mount more equipment and tools necessary for work than before, and construction work can be performed without using a vehicle for transporting equipment. As a result, the number of vehicles owned can be reduced to reduce costs. Further, in such a configuration, the tool storage capacity is increased without increasing the height dimension of the tool box (corresponding to the front tool box) in the region between the driver's seat on the chassis and the swivel. Therefore, there is no need to move the boom mounting position upward, and there is no inconvenience that the stability of the vehicle body is impaired or that the working range is narrowed by restricting passage at a work site with a low ceiling.
[Brief description of the drawings]
FIG. 1 is a side view of a boom type aerial work vehicle according to the present invention.
FIG. 2 is a perspective view of the boom type aerial work vehicle.
FIG. 3 is a perspective view of a tool box in which a lower stage is a closed type and an upper stage is an upwardly open type.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Boom type aerial work vehicle 10 Car body 11 Driver's seat 12 Chassis 20 Swivel base 30 Boom 40 Working tables 61-63 First to third tool boxes (front tool box)
64,65 4th and 5th tool box (rear tool box)

Claims (1)

A vehicle body having a chassis behind the driver seat;
A swivel provided at the rear of the driver seat;
A support column that extends upward from the swivel base and is pivotable .
A boom that can be raised and lowered attached to the column;
A workbench provided at the tip of the boom and placed above the driver's seat during storage ;
A front tool box provided in a region between the driver's seat on the chassis and the swivel base and the support column ;
A rear tool box provided in a lateral region of the swivel base and the support column on the chassis;
Moreover, the swivel base and lateral dimensions of the rear tool box so as not to interfere with the pivotal movement of the struts is smaller than lateral dimension of the front tool box positioned in front of said rearward tool boxes, said undercarriage An operator can get on and off the chassis from behind.
A boom type aerial work vehicle characterized by that.

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