KR102038526B1

KR102038526B1 - High place working vehicles having tiltable and raollerable basket

Info

Publication number: KR102038526B1
Application number: KR1020190025191A
Authority: KR
Inventors: 장진만; 장영윤; 장세윤
Original assignee: 장진만; 장영윤; 장세윤
Priority date: 2019-03-05
Filing date: 2019-03-05
Publication date: 2019-10-31
Also published as: KR20190031213A

Abstract

The present invention relates to a aerial work vehicle, and more particularly, the aerial work vehicle of the present invention is rotatably installed on a movable body body so as to tilt the lifting work platform provided in the aerial work vehicle so as to keep the work bench horizontal. Includes a boom and a lifting platform provided on the boom, the aerial platform includes a vertical bracket connected to the workbench, and a connecting bracket connected to the vertical bracket to connect the boom, rotating the connecting bracket to the vertical bracket Pitching rotation means for connecting the worktable to enable the pitching movement with respect to the boom can be provided.

Description

HIGH PLACE WORKING VEHICLES HAVING TILTABLE AND RAOLLERABLE BASKET}

The present invention relates to an aerial work vehicle, and more particularly, to an aerial work vehicle having a tiltable work platform provided by the aerial work vehicle to tilt and roll a lifting work platform to maintain a horizontal work bench.

In general, the aerial vehicle is a device for performing work in a high position, a lifting platform that can adjust the height by lifting a work platform (commonly referred to as a "basket", hereinafter referred to as "basket", "work table") and the work platform on which the worker boards Means;

The aerial work vehicle enables the aerial work, such as high-rise exterior wall construction, street lamp repair, signage installation, and the like to be lifted to a high position.

On the other hand, the aerial vehicle is provided with an outrigger for preventing overturning accidents during the aerial operation, and the outriggers are installed in all directions of the aerial vehicle to support and secure the aerial vehicle.

However, when the aerial vehicle is moved, the outriggers must be folded and unfolded one by one, so the maneuverability is reduced, and the fruit farms that have to move and stop repeatedly from time to time are required to use the small-tension pressure difference for fruit harvesting. Inadequate

In addition, in the case of farmland, there are many places where the slope is severe unlike general roads, so an outrigger is needed, and an outrigger that can support the inclined direction according to the position and the slope is necessary, but There were no farming aerial vehicles equipped with the composition.

On the other hand, registration utility model No. 20-0431776 (hereinafter referred to as "prior art document 1") discloses a vehicle for aerial work.

Conventional aerial work vehicle disclosed in the prior art document 1 is provided with a boarding unit that the operator is to board for the aerial work, is equipped with a hydraulic device for the lift and operation for the lifting, lowering and forward, backward movement of the boarding portion. In order to adjust the position of the boarding part by allowing the operator boarding the board to directly control the control unit, the work position setting by the operator is freely configured to facilitate mobility.

However, the aerial work vehicle disclosed in the prior art document 1 is inclined by the inclined surface of the farmland in irregular terrain due to many slopes, such as farmland, thereby the work platform lifted from the aerial work vehicle is also inclined like the aerial work vehicle Not only is it difficult to get on the workbench, but when working on the workbench, there is a problem that the safety of the worker cannot be guaranteed due to the tilted workbench.

Accordingly, the present applicant to improve the above problems through the domestic registered patent No. 10-1765421 (hereinafter referred to as "prior art document 2").

The conventional aerial work vehicle disclosed in the prior art document 2, by providing a worktable that is tiltably installed on the boom provided in the vehicle, the worker boarded on the workbench as the level of the workbench through the tilting operation even if the vehicle is tilted To ensure safety.

However, the aerial work vehicle disclosed in the prior art document 2 was able to maintain a level with respect to the inclined vehicle, but in addition to irregular roads such as farmland or orchards, and in extreme slopes such as hills or mountains, the vehicle tilts only in one direction. Since it does not lose, there is a problem that it is somewhat limited to maintain the level by tilting in one direction only.

Detailed description of the aerial work vehicle as described above and the work table provided therein is described in detail in the following prior art document, and thus a detailed description thereof will be omitted.

Korean Utility Model Registration No. 20-0431776 Korean Patent Registration No. 10-1765421

Therefore, the present invention has been made to solve the problems of the prior art as described above, by tilting the workbench lifting in the aerial work vehicle to maintain the workbench level even in the non-horizontal state of the aerial work platform on irregular road surface or severe slope It is an object of the present invention to provide an aerial platform having a worktable capable of tilting and rolling in as many directions as possible.

In order to solve the above problems, aerial work vehicle according to the present invention includes a boom that is rotatably installed in the vehicle body capable of running, and a work platform provided on the boom lifting, vertical platform connected to the work platform And a connection bracket connected to the vertical bracket to connect the boom, and a pitching rotation means for rotatably connecting the connection bracket to the vertical bracket to enable the pitching movement with respect to the boom.

The vertical bracket includes a vertical plate formed to face the work table, and a pair of bending plates formed at both ends of the vertical plate to be bent vertically in a direction away from the work table, and the connection bracket is between the two bending plates of the vertical bracket. A part of which is accommodated in and rotatably coupled by the pitching rotation means.

In addition, the connection bracket may include a pair of contact plates disposed to be in contact with opposite surfaces of both bending plates of the vertical bracket, and at least one fixing plate intersecting between the contact plates, and the contact bracket of the connection bracket is formed to be gradient. It can be configured not to be caught by the vertical plate of the vertical bracket by the rotation.

Furthermore, the pitching rotating means includes a pitching rotary shaft inserted through the vertical bracket and the connecting bracket, and a pitching cylinder stretched in the normal direction of the rotational direction so that the connecting bracket rotates about the vertical bracket with the pitching rotary shaft as the axis. The cylinder may be disposed orthogonal to the vertical bracket and operate in the horizontal direction.

On the other hand, by connecting the vertical bracket rotatably to the worktable may be provided with a rolling rotating means to enable the rolling movement of the worktable relative to the boom.

The rolling rotating means may include a rolling shaft inserted into the vertical bracket and the work table, and a rolling cylinder rotating the vertical bracket around the rolling rotating shaft, and the rolling cylinder may be disposed parallel to the vertical bracket to operate in the vertical direction. have.

In addition, the rolling rotating shaft is provided to be located above the vertical bracket, it can be set to reduce the rolling rotation radius of the workbench.

According to the aerial platform having a tiltable work platform of the present invention, by tilting and rolling the work platform lifted from the aerial work platform, it is possible to maintain the work surface horizontally even in the non-horizontal state of the aerial work platform on irregular roads or severe slopes, etc. It can be safely boarded, there is an effect that can promote the safety of workers on the workbench.

In addition, the aerial work vehicle having a tiltable worktable of the present invention is capable of tilting and rolling in multiple directions instead of one direction, thereby keeping the worktable horizontal against tilting in several directions instead of tilting in one direction. It is possible to increase the safety.

1 is a block diagram showing the aerial work vehicle according to the present invention.
Figure 2 is a side view of the aerial work vehicle according to the present invention.
3 is a configuration diagram showing a state in which the working platform of the aerial work vehicle according to the present invention is separated.
Figure 4 is an exploded perspective view showing an exploded main configuration of the aerial work vehicle according to the present invention.
5 is a cross-sectional view of a portion "A" of FIG. 2 showing a cross section of the aerial work vehicle according to the present invention.
6 is an operation view showing a state pitched by the pitching rotation means of the aerial work vehicle according to the present invention.
7 is an operation diagram showing a state in which the rolling motion by the rolling rotating means of the aerial work vehicle according to the present invention.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms.

Hereinafter, with reference to the accompanying drawings will be described in detail the technical features of the present invention. 1 is a block diagram showing the aerial work vehicle according to the present invention. Figure 2 is a side view of the aerial work vehicle according to the present invention. 3 is a configuration diagram showing a state in which the working platform of the aerial work vehicle according to the present invention is separated. Figure 4 is an exploded perspective view showing an exploded main configuration of the aerial work vehicle according to the present invention. 5 is a cross-sectional view of a portion "A" of FIG. 2 showing a cross section of the aerial work vehicle according to the present invention. 6 is an operation view showing a state pitched by the pitching rotation means of the aerial work vehicle according to the present invention. 7 is an operation diagram showing a state in which the rolling motion by the rolling rotating means of the aerial work vehicle according to the present invention.

Aerial work vehicle 100 according to an embodiment of the present invention, as shown in Figures 1 to 5, and the body body 110 that can be driven by a pair of crawler wheels 120 respectively installed on both sides It is installed on the upper body body 110, the boom 130 is provided to be rotated up, down, left and right, and a work table 200 is provided on the front end of the boom 130 is lifted.

The aerial work vehicle 100 is to lift the work platform 200 to a high position to enable the aerial work, in the present embodiment will be described taking the aerial work vehicle 100 used for agriculture as an example.

The body body 110 of the aerial work vehicle 100 may be provided with tire wheels other than the caterpillar wheel 120, the boom 130 may be provided to extend in length in a telescope method.

In addition, the work platform 200 of the aerial work vehicle 100 is provided with a plate-shaped footrest 210 so that the operator boards, the fence 220 may be provided on the circumferential side of the footrest 210 to prevent the operator from leaving. have. The fence 220 of the worktable 200 may be provided with rod-shaped frames, as shown in the drawings, may be provided with a plate or a rectangular frame having an appropriate thickness, the fence 220 is a vertical bracket (to be described later) Coupling plate 221 to which the 140 is coupled may be provided vertically on one side, the other side is preferably provided with an inlet 230 that is open to allow the worker to enter.

On the other hand, the aerial work vehicle 100 according to an embodiment of the present invention, a vertical bracket 140 connected to the work table 200, and a connecting bracket for connecting the boom stand 130 while being connected to the vertical bracket 140 150 is provided.

The vertical bracket 140 is for connecting the work table 200, the bar is coupled to one side to the work table 200, the vertical plate 141 formed to face one surface of the fence 220 of the work table 200 Equipped. The vertical plate 141 of the vertical bracket 140 may be formed long in correspondence with the height of the work table 200, which will be described later, but by expanding the area in contact with the work table 200, stable coupling and support with the work table 200 are possible. To function.

The vertical plate 141 of the vertical bracket 140 may be provided with a bending plate 142 extending from the left and right both ends, the bending plate 142 is a vertical plate to protrude toward the direction away from the work table 200 It is formed by bending vertically at both ends of the (141). Here, the vertical bracket 140 is shown that the plate-shaped members are formed bent or integrally formed, it may be provided in a closed enclosure shape or one side may be provided in an open enclosure shape.

On the other hand, the vertical bracket 140 may be provided with a reinforcing plate member 143, the reinforcing plate member 143 is coupled to the back surface of the vertical plate 141, the workbench at the time of connecting the vertical bracket 140 and the work table 200 ( 200). As the reinforcing plate 143 is disposed to face the work table 200, the reinforcing plate material 143 may support the work table 200 against a pitching motion or a rolling motion, which will be described later.

The connection bracket 150 is connected to one surface of the vertical bracket 140.

The connecting bracket 150 is for connecting the boom 130 to the work table 200, the boom 130 is connected to the connecting bracket 150 so as to be tiltable by the respective hinge shaft. Then, the connecting bracket 150 is coupled to the vertical bracket 140 in a state rotatably connected to the boom 130.

At this time, the connection bracket 150 may be inserted in a form in which a portion is accommodated between the two bending plates 142 of the vertical bracket 140, the received portion is coupled by the rotating shaft of the pitching rotation means 160 to be described later By rotatably connected to the vertical bracket 140, it is possible to rotate the pitching relative to the vertical bracket (140).

The connection bracket 150 has a pair of contact plates 151 spaced apart from each other, and a fixing plate 152 for connecting the contact plates 151 on both sides is provided. The contact plate 151 of the connection bracket 150 may be provided to be in contact with the inner surface of both of the bending plate 142 of the vertical bracket 140, respectively, the receiving portion protrudes to be accommodated in the vertical bracket 140 ( 150a). A shaft coupling hole 150b through which the rotating shaft is coupled may be formed in the accommodation portion 150a.

Here, the contact plate 151 of the connection bracket 150 may be provided to contact the outer surface of the bending plate 142 of the vertical bracket 140, the connection bracket 150 is a vertical bracket 140 during the rotation operation to be described later It is more preferable to be combined in a form that is accommodated and supported inside the).

The fixing plate 152 is preferably provided with at least one, it may be composed of a plurality of members spaced apart a predetermined interval along the longitudinal direction of the contact plate 151.

Here, the connection bracket 150 may be configured to include a pair of contact plates 151 and a plurality of fixing plates 152, as shown in the figure, the shape of the bracket is perpendicular to the boom 130 It may be provided in a different configuration that can be connected to the bracket 140, respectively, may be provided in an enclosure shape as an example.

And, the connecting bracket 150 may be preferably coupled to an intermediate point of the vertical bracket 140, which will be described later, but the connecting bracket 150 has a structure in which the receiving portion 150a is accommodated between the bent plates 142. It is to act with, bar to function to reduce the rotation radius of the pitching rotation operation of the connection bracket 150 compared to the structure connected to the top or bottom of the vertical plate (141).

In addition, when the connection bracket 150 is pitched and rotated while being rotatably connected to the vertical bracket 140 by the pitching rotation means 160, the connecting bracket 150 contacts the vertical plate 141 of the vertical bracket 140 by the rotation radius. The contact plate 151 is preferably formed in an inclined shape so as not to engage while being engaged. That is, the contact plate 151 of the connection bracket 150 may be formed in a pair of plate shapes forming a triangle as shown in FIG. 4 rather than a square or rectangular plate material, which is accommodated inside the bending plate 142. The accommodating part 150a side of the contact plate 151 is formed to extend to be gradient at a predetermined inclination toward the outward direction with a vertex of a triangle.

The inclined shape or triangular shape of the contact plate 151 is a circumferential side of the contact plate 151 extending from the receiving portion 150a when the connection bracket 150 accommodated in the vertical bracket 140 rotates pitching. It will function so as not to be caught in the vertical bracket 140, thereby enabling to set a larger radius of rotation of the connection bracket (150).

This is difficult to work in the inclination of the inclined angle considerably in the general working environment of the aerial work vehicle 100, but the operation is performed on the ground slope of the aerial work vehicle 100 is not overturned, the inclination to this Corresponding to it is to ensure the maximum rotation angle for horizontal maintenance of the worktable 200.

As such, the work table 200 is connected to the boom 130 by the vertical bracket 140 and the connection bracket 150, the aerial work vehicle 100 according to an embodiment of the present invention is perpendicular to the connection bracket 150 It may include a pitching rotation means 160 for rotatably connecting to the bracket 140 to rotate the work table 200.

Pitching rotation means 160 is connected to the boom bracket 130 by connecting the connecting bracket 150 to the vertical bracket 140 rotatably at the tip of the boom 130, the pitching movement 200 with respect to the boom 130 Connect rotatably.

Here, the pitching rotation means 160 may be provided with a pitching rotation shaft 161 for rotatably coupling the connection bracket 150 to the vertical bracket 140, the pitching rotation shaft 161 is the connection bracket 150 And coupled through the vertical bracket 140. Thus, the pitching rotation shaft 161 functions to enable the pitching movement of the connecting bracket 150 with respect to the vertical bracket (140).

That is, the connecting bracket 150 is provided to penetrate the receiving portion 150a of the connecting bracket 150 through the pitching rotation shaft 161 through a portion inserted into the vertical bracket 140. As such, the connection bracket 150 may be rotated by the receiving portion 150a coupled to the vertical bracket 140 and the pitching rotation shaft 161 as the axis.

In addition, the pitching rotation means 160 is provided with a pitching cylinder 162 to induce the operation so that the pitching rotation shaft 161 as the rotation axis so that the connecting bracket 150 or vertical bracket 140 can be pitched rotation with respect to each other. The pitching piston rod 163 may be provided at an end portion of the pitching cylinder 162. They can be rotatably connected to each bracket.

For their connection, the pitching rotation means 160 may be provided with a first pitching hinge bracket 164, a second pitching hinge bracket 165, the first pitching hinge bracket 164 is a vertical bracket 140 ), The second pitching hinge bracket 165 may be formed in the connection bracket (150).

That is, the first pitching hinge bracket 164 is provided to be fixed to the upper side of the vertical bracket 140, the second pitching hinge bracket 165 is formed to extend on the upper side of the connecting bracket 150, they are spaced apart from each other It can be provided as a pair of members.

The pitching cylinder 162 is connected to one end of the pitching hinge bracket 164 is rotated, the pitching piston rod 163 coupled to the other end of the pitching cylinder 162 is a second pitching hinge bracket (165) The end is connected and rotated.

Thus, the vertical bracket 140 and the connecting bracket 150 are pushed and pulled from the pitching cylinder 162 by pushing the vertical bracket 140 or the connecting bracket 150 in the front and rear directions by entering and exiting the pitching piston rod 163. 150 can be rotated about the pitching rotary shaft 161, and induces the pitching movement of the work table 200 on the boom 130 connected to them. In the embodiment of the present invention, the description that the vertical bracket 140 or the connecting bracket 150 rotate with respect to each other, so that the work table 200 is rotated with respect to the boom 130 that is connected to them and fixed to the vehicle as a result. Can mean being.

The pitching cylinder 162 may be disposed in the normal direction with respect to the rotation radius based on one end of the connection bracket 150 that rotates based on the axis of the pitching rotation shaft 161, in the embodiment of the present invention is a vertical bracket ( And in a horizontal direction orthogonal to 140). Therefore, the pitching cylinder 162 stretches the pitching piston rod 163 in the horizontal direction to induce an intuitive rotational operation of the connecting bracket 150 about the pitching rotation shaft 161.

In addition, the pitching cylinder 162 may be located above the pitching rotation shaft 161. That is, the pitching cylinder 162 induces a rotational operation of the pitching rotary shaft 161 located on the lower side through the stretching operation of the pitching piston rod 163 on the upper side, and as a result, the driving position is higher than the rotating shaft and the work table ( This is to obtain structural stability by having a structure spaced upward from the lower side of 200).

On the other hand, although not shown in the drawings, the pitching cylinder 162 is provided in the aerial work vehicle 100 is operated in conjunction with a tilt sensor (gyro or inclination sensor) for detecting the inclination of the aerial work vehicle 100, this operation Is controlled by a controller provided in the aerial work vehicle 100.

That is, when the aerial work vehicle 100 working on the farmland is tilted back and forth by the inclined surface of the farmland, the tilt sensor detects the degree of inclination of the aerial work vehicle 100, and outputs a detection signal thereof to the controller, The controller draws or pulls the pitching piston rod 163 in the pitching cylinder 162 according to the slope of the aerial work vehicle 100 input to the work table 200 based on the pitching rotation shaft 161 of the connecting bracket 150. The aerial work vehicle 100 is inclined in the opposite direction inclined to maintain the horizontal of the worktable 200. The state diagram by this operation is shown in FIG.

Therefore, the aerial work vehicle according to the present invention can maintain the horizontal state of the work bench 200 by the pitching rotation means 160, even if the vehicle is tilted in the front and rear direction, so that the worker boarding the work platform 200 safely Allows you to do work.

On the other hand, aerial work vehicle 100 according to an embodiment of the present invention includes a rolling rotating means 170 to rotate the worktable 200 by rotatably connecting the vertical bracket 140 to the worktable 200. Can be. Rolling rotation means 170 functions to induce a rolling movement of the worktable 200 to maintain a horizontal in the left and right direction.

That is, the rolling rotation means 170 may be provided with a rolling rotation shaft 171 for rotatably coupling the vertical bracket 140 connected to the worktable 200, the rolling rotation shaft 171 is a vertical bracket 140 Both ends thereof are inserted into the worktable 200 and function to enable rolling rotations with respect to each other.

The rolling shaft 171 is inserted into the work table 200 through the upper side of the vertical bracket 140. Here, the upper portion (or upper portion) refers to a portion above at least an intermediate point with respect to the longitudinal direction of the vertical bracket 140, and the rolling rotating means 170 of the present invention is the vertical bracket to position the rolling shaft 171 By positioning the lower side of the 140 or higher than the bottom of the work table 200, it is possible to move the rotation axis of the rolling movement upwards, which results in the position of the rotation center is not the bottom of the work table 200, By being able to be set in the vicinity of the center with respect to the height direction will lead to a stable rotation of the worktable 200.

At this time, a bearing is interposed between the circumference of the rolling rotary shaft 171 and the vertical bracket 140 to stably induce the rotation of the rolling rotary shaft 171, and the shaft nut is coupled to the end thereof so that the rolling shaft 171 is separated. prevent.

Here, the rolling rotating means 170 is provided with a rolling cylinder 172 to induce its operation so that the worktable 200 or the vertical bracket 140 can be rotated with respect to each other by using the rolling rotating shaft 171 as the rotating shaft. The rolling cylinder 172 may have a rolling piston rod 173 connected to the end of the rolling cylinder 172. These are rotatably connected to the vertical bracket 140 and the work table 200, respectively.

To this end, the vertical bracket 140 is provided with a pair of the first rolling hinge bracket 174 spaced apart so that the rolling cylinder 172 can be coupled, the worktable 200 has a rolling piston rod 173 A pair of spaced apart second rolling hinge brackets 175 to be coupled is provided to be fixed. The rolling cylinder 172 is rotated by one end connected to the first rolling hinge bracket 174, and the rolling piston rod 173 coupled to the other end of the rolling cylinder 172 so as to be accessible therefrom has a second rolling hinge. It is connected to the bracket 175 and rotated.

At this time, the rolling cylinder 172 and the rolling piston rod 173 are arranged in a direction parallel to the vertical bracket 140 disposed in the vertical direction, the upper and lower sides by the entry and exit of the rolling piston rod 173 As the work table 200 or the vertical bracket 140 is pushed, the vertical bracket 140 is rotated about the rolling rotation shaft 171, and as a result, the rolling motion of the work table 200 is induced.

That is, when the aerial work vehicle 100 working on the farmland is inclined left and right by the inclined surface of the farmland, by the tilt sensor and the controller described above, rolling in the rolling cylinder 172 according to the tilt of the aerial work vehicle 100. The piston rod 173 is drawn out or drawn in so that the work platform 200 is tilted in the opposite direction in which the aerial work vehicle 100 is inclined relative to the rolling rotation shaft 171 of the vertical bracket 140 to level the work platform 200. Will be maintained. A state diagram according to this operation is shown in FIG.

The aerial work vehicle according to the embodiment of the present invention configured as described above allows the horizontal maintenance of the aerial work vehicle 100 by tilting as it is guided by the pitching rotation means 160.

In addition, as the rolling motion is guided by the rolling rotating means 170, horizontal maintenance of the aerial work vehicle 100 can be maintained by tilting in the lateral direction.

That is, in the aerial work vehicle according to the embodiment of the present invention, the pitching rotary shaft 161 for the pitching motion and the rolling rotary shaft 171 for the rolling motion are provided to be orthogonal to each other, thereby performing the pitching motion and the rolling motion, respectively. It is made of a structure, and moves to respond to the inclination of the vehicle, respectively.

Particularly, in the aerial work vehicle according to the present invention, since the rolling cylinder 172 is disposed in a vertical direction parallel to the vertical bracket 140 and operates at right angles to each other, interference does not occur between each other according to each operation. It may be provided as a structure, so that the pitching motion and the rolling motion may be operated separately or simultaneously.

As a result, since the pitching motion and the rolling motion can be performed individually or simultaneously, it is possible to cope not only with the inclination in the front-rear direction, the left-right direction, that is, the four directions, but also the inclination in the oblique direction due to the combination thereof. As a result, it is possible to keep the workbench horizontal in response to inclination in various directions, thereby further improving stability.

This is to provide a structure that can be tilted in at least two directions, in addition to each direction in addition to the tilting in one direction, through a combination of each direction, it is possible to respond to the inclination of the vehicle in various directions.

Furthermore, the aerial work vehicle according to the embodiment of the present invention is provided with a structure for positioning the position of the rolling rotary shaft 171 on the upper side of the vertical bracket 140, unlike the prior art that induces a rolling motion at the bottom of the work table, the rotation By arranging the position of the center point at least at the middle point of the worktable height to induce a rolling motion, the radius of rotation can be reduced, thereby enabling a more stable operation.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not for limiting the technical spirit of the present invention but for description, and the scope of the technical idea of the present invention is not limited by these embodiments.

Therefore, the scope of protection of the present invention should be interpreted by the following claims rather than limited by the above-described embodiment, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: aerial work vehicle 110: body body
130: boom stand
140: vertical bracket 150: connection bracket
160: pitching rotation means 170: rolling rotation means
200: worktable

Claims

In the aerial work vehicle comprising a boom rotatably installed on the body of the body that can run, and a work platform that is provided on the boom and lifted,
It includes a vertical bracket connected to the workbench, and a connecting bracket connected to the vertical bracket to connect the boom,
Pitching rotation means for connecting the connecting bracket to the vertical bracket rotatably to enable the pitching movement of the work table with respect to the boom and
Rolling rotating means for rotatably connecting the workbench with respect to the boom by connecting the vertical bracket to the worktable rotatably,
The vertical bracket has a vertical plate which is formed to face the work table, and a pair of bending plates which are bent vertically in the direction away from the work table at both ends of the vertical plate, and the connecting bracket is partially between the two bending plates of the vertical bracket. Is accepted,
The pitching rotating means includes a pitching rotary shaft inserted through the vertical bracket and the connecting bracket, and a pitching cylinder stretched in the normal direction of the rotation direction such that the connecting bracket rotates about the vertical bracket with the pitching rotary shaft as an axis. It is arranged to be perpendicular to the vertical bracket to operate in the horizontal direction,
The rolling rotating means includes a vertical rotary shaft and a rolling rotary shaft inserted into the workbench, and a rolling cylinder rotating the vertical bracket about the rolling rotary shaft, wherein the rolling cylinder is disposed parallel to the vertical bracket and operated in a vertical direction. .

The method according to claim 1,
The connection bracket includes a pair of contact plates disposed to be in contact with opposite surfaces of both bending plates of the vertical bracket, and at least one fixing plate intersecting between the contact plates, wherein the contact bracket of the connection bracket is formed to be gradient and rotated. Aerial work vehicle that is configured not to be caught in the vertical plate of the vertical bracket.

The method according to claim 1,
The rolling shaft is provided to be located above the vertical bracket, thereby reducing the rolling radius of the work platform

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