KR102297032B1 - Telescopic master havong fork lifter - Google Patents

Abstract

The present invention relates to a telescopic master device having a rotatable forklifter, which is provided on a telescopic master and moves up and down. According to the present invention, the telescopic master comprises: a fixed boom; an operating cylinder fixed to the fixed boom and provided with a rod that enters and exits as hydraulic pressure is supplied to the upper end thereof; a slide boom coupled to the fixed boom to slide and the rod of the operating cylinder is fixedly provided; and a slider which is slidably coupled to the slide boom. The forklifter includes a pivot bracket that is rotatably coupled to the slider of the telescopic master up and down and left and right.

Description

Telescopic master havong fork lifter

The present invention relates to a telescopic master device having a rotatable forklifter, and more particularly, by a telescopic master device having a forklifter that rotates up and down and left and right, even at a long distance from the transport vehicle, crops harvested in the loading box of the transport vehicle It relates to a telescopic master device having a rotatable forklifter to smoothly load and load.

In general, a tractor, which is a type of agricultural work vehicle, is a work vehicle for performing various tasks in agriculture or construction using traction.

In particular, agricultural tractors are used for transporting crops or mechanized agriculture, etc. These tractors are equipped with a loader that can rotate up and down in front of the tractor, while at the front end of the loader, bale tongs, buckets, hooks, etc. Any one is installed to perform the corresponding work, and any one of the working machines such as a rotavator for tillage work, a trailer for transporting crops, and a dozer for dozer work is installed at the rear of the tractor to perform the corresponding work.

A link device capable of installing a working machine is provided at the rear of the tractor, and the link device is provided with an upper link that rotates up and down on the center upper part of the rear of the tractor, and a lower link that rotates up and down on the left and right lower parts of the rear of the tractor. The work is performed by installing the work machine on the link and the lower link.

Such a link device at the rear of the tractor is disclosed in Korean Utility Model Registration No. 20-0357855 (hereinafter referred to as 'Prior Art Document 1') and Republic of Korea Patent No. 10-0693375 (hereinafter referred to as 'Prior Art Document 2'). has been proposed

The link device for the rear of the tractor proposed in Prior Art Documents 1 and 2 includes an upper link composed of a hydraulic cylinder at an upper portion of the rear of the tractor, and a lower link having a three-point link structure provided to rotate up and down under the upper link.

Various working machines, that is, attachments are mounted on the upper link and the lower link provided in this way, and a work suitable for the corresponding working machine is performed.

On the other hand, when shipping cultivated crops, the harvested crops are loaded into the cultivator's loading box, and then the cultivator is driven along the farm road and moved to the transport vehicle, that is, a large truck. It will be transferred to and shipped to the bin.

However, this series of shipment processes has the disadvantage that the shipment is very slow due to unnecessary work such as loading crops into the loading box of the cultivator and then loading them back into the loading box of the truck, resulting in a decrease in shipment volume, and narrow agricultural road with severe bends. In the process of moving to the cultivator, the crops loaded in the cultivator may fall, and the cultivator has no choice but to run at a slow speed. .

Republic of Korea Registered Utility Model No. 20-0357855 Republic of Korea Patent Registration No. 10-0693375

Therefore, the present invention has been devised to solve the problems of the prior art as described above, and it is possible to directly load the crops harvested at the time of shipment of the crops to the loading box of the transport vehicle from a long distance without transporting the crops to the nearest distance of the transport vehicle. It is an object of the present invention to provide a telescopic master device having a rotatable forklifter capable of lifting a harvested crop and rotating it vertically and horizontally.

A telescopic master device having a rotatable forklift according to the present invention for achieving the above object is a telescopic master device having a forklifter that is provided in a telescopic master and moves up and down, and the telescopic master includes a fixed boom and a fixed boom. A working cylinder fixed and provided with a rod that enters and exits as hydraulic pressure is supplied to an upper end thereof; a slide boom coupled to the fixed boom to slide and the rod of the operating cylinder is fixedly provided; Including, the forklifter may include a pivot bracket that is rotatably coupled to the slider of the telescopic master vertically and horizontally.

In addition, the telescopic master is provided by being hinged to the work vehicle, and the work vehicle is provided with an upper link and a lower link hinged to the fixed boom of the telescopic master, respectively, to rotate the telescopic master in the front and rear direction of the work vehicle to be inclined. can

In addition, the slider is slidably coupled to the outer surface of the slide boom, the slide boom is slidably coupled to the outer surface of the fixed boom, the working cylinder is provided to be built in the fixed boom, and the rod of the working cylinder is slide It may be provided to be fixed to the inner surface of the boom.

In addition, a first support roller for supporting the slide boom in contact with the inner surface of the slide boom may be provided at the upper end of the fixed boom, and the first support roller may be provided to be in contact with the inner surface of the slide boom on the opposite side of the forklifter. can

In addition, the upper end of the fixed boom is provided in a direction orthogonal to the first support roller may further include a second support roller in contact with the inner surface of the slide boom.

And, the slider is slidably coupled to the outer surface of the slide boom, and when the slide boom is slidably moved in the fixed boom, it may be provided to slide in the slide boom in the same direction as the slide boom.

More specifically, each chain is connected to the fixed boom, one chain is connected to the upper part of the slider through the inner upper end of the slide boom, and the other chain is connected to the lower part of the slider through the outer lower end of the slide boom. , When the slide boom is moved in the fixed boom, the slider may be provided to be moved in the slide boom.

On the other hand, between the pivot bracket of the forklifter and the telescopic master, a rotating cylinder for rotating the pivot bracket up and down in the telescopic master is provided, and between the pivot bracket and the forklifter a swing cylinder for rotating the forklifter left and right in the pivot bracket is provided. can

According to the telescopic master device having a rotatable forklift of the present invention, a telescopic master connected to an upper link and a lower link at the rear of the work vehicle, and a forklift that is provided in the telescopic master and rotates up and down and left and right are provided, The crops can be loaded directly into the loading box of the transportation vehicle from a distance without transporting the crops to the nearest distance of the transportation vehicle, and the crops can be loaded directly into the loading box of the transportation vehicle by the rotating forklifter regardless of the location of the vehicle. This has the advantage of being able to quickly ship a large amount of crops as the shipment process proceeds quickly.

1 is a block diagram of a work vehicle having a telescopic master according to the present invention.
2 is a configuration diagram of a telescopic master in an extended state according to the present invention.
3 is a diagram illustrating a combination of a telescopic master according to the present invention.
Figure 4 is an exploded view of the telescopic master in accordance with the present invention viewed from the front.
5 is an exploded view of the telescopic master according to the present invention as viewed from the rear.
6 is a view showing the internal configuration of the telescopic master in operation according to the present invention.
7 is a view showing an operating state in which the telescopic master according to the present invention is tilted forward in the work vehicle.
8 is a view showing an operating state in which the telescopic master according to the present invention is tilted to the rear in the work vehicle.
9 is an enlarged view showing the telescopic master and the forklifter separated from the rear according to the present invention.
10 is a configuration diagram illustrating a configuration of a fork bar provided in the forklifter according to the present invention.
11 is an operational view of the forklifter according to the present invention in a state in which the forklifter is rotated up and down in the telescopic master.
12 is an operational view of the forklifter according to the present invention in a state in which the forklifter is rotated left and right in the telescopic master.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The terms used in the present invention are terms defined in consideration of functions in the present invention, which may vary depending on the intention or custom of the user or operator, so the definitions of these terms correspond to the technical matters of the present invention and should be interpreted as a concept.

In addition, the embodiments of the present invention do not limit the scope of the present invention, but are merely exemplary matters of the constituent elements presented in the claims of the present invention, and are included in the technical spirit throughout the specification of the present invention and the scope of the claims. It is an embodiment including a substitutable component as an equivalent in the component.

In addition, optional terms in the examples below are used to distinguish one component from other components, and the components are not limited by the terms.

Accordingly, in describing the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the gist of the present invention will be omitted.

1 to 12 are views showing a telescopic master and a forklift comprising the same according to the present invention.

According to the present invention, a telescopic master connected to and mounted on a work vehicle, that is, a tractor 100 (hereinafter, referred to as a “tractor”) is provided, and the telescopic master includes a forklifter coupled to move in the vertical direction.

As shown in FIGS. 1 and 2, the tractor 100 is provided with a link device capable of connecting and mounting various working machines including the forklifter 260 as in the present embodiment at the rear thereof.

This link device includes an upper link 110 provided as a hydraulic cylinder at the upper portion of the rear of the tractor 100, and a lower link 120 that is rotated up and down by a hydraulic cylinder 130 on both lower sides of the upper link 110. include

Various working machines are connected to and mounted on the upper link 110 and the lower link 120 , and the working machine (hereinafter, “the forklifter 260 will be described as an example”) is lowered by the operation of the upper link 110 . It is rotated back and forth with respect to the link 120 , and is provided to be lifted upward or lowered downward by the operation of the lower link 120 .

On the other hand, a telescopic master 200 is provided between the upper link 110 and the lower link 120 and the forklifter 260 as described above, and the telescopic master 200 moves the forklifter 260 up and down while It is configured to be able to move over a long distance.

As shown in FIGS. 3 to 6, the telescopic master 200 includes a fixed boom 210 and a fixed boom ( While being fixed to the 210, the working cylinder 220 is provided with a rod 221 that enters and exits as hydraulic pressure is supplied to the upper end thereof, and the rod 221 of the working cylinder 220 is coupled to be slidably moved to the fixed boom 210. ) is fixed to the slide boom 230, and the slide boom 230 is slidably coupled to the front surface of which is a slider ( 250).

The fixed boom 210, the slide boom 230, and the slider 250 provided in this way are provided in the order of the fixed boom 210 <slide boom 230 <slider 250 in diameter.

That is, the slider 250 is slidably coupled to the outer surface of the slide boom 230 , and the slide boom 230 is slidably coupled to the outer surface of the fixed boom 210 , and the slider 250 is moved up and down. The working cylinder 220 to move is fixedly provided inside the fixed boom 210 , and the rod 221 of the working cylinder 220 is fixedly provided on the inner upper surface of the slide boom 230 .

Accordingly, the forklifter 260 mounted on the slider 250 can be lowered to the ground, which is the lowest point, without interference with the surrounding configuration, and can be raised to the highest point, which is the top of the telescopic master 200, which is the highest point. It is possible to secure the maximum stroke of the slider 250 to be moved.

As another example, when the sizes, ie, diameters, of the fixed boom 210, the slide boom 230, and the slider 250 are opposite to those described above, the forklifter 260 mounted on the slider 250 has the largest diameter. Only the upper end of the fixed boom 210 can be lowered, and the upper and lower strokes of the slider 250 and the forklifter 260 are also limited by the length of the slide boom 230 entering and leaving the fixed boom 210 .

On the other hand, the fixed boom 210 having the smallest outer diameter as described above is formed in the form of a rectangular hollow pipe, and a plurality of mounting brackets 215 installed in a direction orthogonal to the fixed boom 210 are provided at the lower end thereof. , a connection bracket 216 is provided on the rear surface of the fixed boom 210 spaced apart from the mounting bracket 215 . The upper link 110 and the lower link 120 of the tractor 100 are respectively connected to the connection bracket 216 and the mounting bracket 215 .

And, the upper end of the fixed boom 210 is provided with a first support roller 211 for supporting the slide boom 230 in contact with the inner surface of the slide boom 230, the first support roller 211 is a fork lifter ( 260) the slide boom 230 on the opposite side is provided to roll in contact with the inner surface, that is, the rear surface. Accordingly, when a load is applied to the forklifter 260, the bending moment at which the slide boom 230 is bent forward can be offset by supporting the first support roller 211 in contact with the inner rear surface of the slide boom 230. there will be

In addition, the upper end of the fixed boom 210 may be provided with a second support roller 212 which is provided in a direction orthogonal to the first support roller 211 and rolls in contact with the inner left and right side surfaces of the slide boom 230 . The second support roller 212 guides the slide boom 230 to slide smoothly on the fixed boom 210 rather than the support of the slide boom 230 such as the first support roller 211, but the second support The forklifter 260 may be provided on the side as well as the front side of the slide boom 230 by the roller 212 . The support roller 212 mainly serves to directly offset the bending moment applied to the slide boom 230, similarly to the first support roller 211 described above. Accordingly, it is possible to position the forklifter 260 on either side of the slide boom 230 by the first and second support rollers 211 and 212 .

Therefore, the first support roller 211 provides a supporting force capable of withstanding the bending moment and rolls in contact with the inner surface of the slide boom 230 together with the second support roller 212, so that the fixed boom 210 and the slide boom 230 slides smoothly.

In addition, upper and lower connecting links 213 and 214 to which a plurality of chains 240 to be described later are respectively coupled are fixedly provided on the inner upper end and outer upper portion of the fixed boom 210 , respectively.

In addition, the inside of the fixed boom 210 is provided with a built-in operation cylinder 220 as described above. The operation cylinder 220 has respective hydraulic ports through which hydraulic pressure can be entered and exited at the upper end and lower end thereof. And, the upper surface of the operation cylinder 220 is provided with a rod 221 that enters and exits from the operation cylinder 220, the upper end of the rod 221 is provided to be fixed to the inner upper surface (ceiling surface) of the slide boom (230) .

Therefore, as the rod 221 is moved in and out of the operation cylinder 220 , the slide boom 230 is slid up and down in the fixed boom 210 .

In addition, the slide boom 230 is formed in the form of a rectangular hollow pipe having a larger diameter than the fixed boom 210, and a plurality of support rollers ( 231) is provided.

The support roller 231 of the slide boom 230 is provided in the same position as the first support roller 211 of the fixed boom 210 and acts as a resistance to the bending moment acting on the slide boom 230 as well. Like the first and second support rollers 211 and 212 of the fixed boom 210, the slide boom 230 is guided to move smoothly.

And, on the front upper and lower ends of the slide boom 230, upper and lower sprocket wheels 232 and 233 on which a plurality of chains 240 to be described later are respectively engaged are rotatably provided, respectively, of the slide boom 230. A cutout 234 cut in the vertical direction of the slide boom 230 is formed on the rear side. This cutout 234 is to block the slide boom 230 from interfering with the connection bracket 216 of the fixed boom 210 when the slide boom 230 is lowered.

On the other hand, the slider 250 is formed in the form of a rectangular hollow pipe having a diameter larger than that of the slide boom 230, and a plurality of rolling in contact with the outer surface of the slide boom 230 at the front and rear both sides of the lower end and the rear of the upper end of the slide boom 230. of the support roller 251 is provided, and the support roller 251 functions the same as the support roller 231 of the slide boom 230 .

And, the slider 250 is the same as the slide boom 230 when the slide boom 230 slides up and down in the fixed boom 210 by a plurality of chains 240 to be described later, as shown in FIG. 6 . It is provided to slide in the slide boom 230 in the direction.

That is, upper and lower connecting links 252 and 253 to which a plurality of chains 240 are respectively connected are provided on the front inner upper end and the front outer lower end of the slider 250, respectively, and the chain 240 on one side is a slide boom. It is connected to the upper connection link 252 of the slider 250 in a state of being caught by the upper sprocket wheel 232 through the inner upper end of the 230, and the chain 240 on the other side is the outer lower end of the slide boom 230. It is provided to be connected to the lower connection link 253 of the slider 250 while being caught by the lower sprocket wheel 233 through it.

Accordingly, when the slide boom 230 is moved in the fixed boom 210 , the slider 250 is provided to move in the same direction as the movement direction of the slide boom 230 in the slide boom 230 .

At this time, the upper and lower connecting links 252 and 253 of the slider 250 are provided to be screwed to the slider 250 so that the tension of each chain 240 connected thereto can be adjusted.

On the other hand, the forklifter 260 provided in the telescopic master 200 as described above is moved up and down in the tractor 100 by the telescopic master 200 and is provided to rotate in the front and rear directions, and the telescopic master 200 It is provided to swing (rotate left and right) in

The forklifter 260 is provided by being mounted on the slider 250 of the telescopic master 200 via a pivot bracket 270 as shown in FIGS. 3, 4 and 9 . That is, the pivot bracket 270 is provided between the forklifter 260 and the slider 250 of the telescopic master 200 to provide the forklifter 260 to the slider 250 of the telescopic master 200 .

As shown in Figs. 4 and 9, the rear part of the pivot bracket 270 is rotatably coupled up and down to the front of the telescopic master 200, that is, the slider 250, and the forklifter ( 260) is provided rotatably coupled to the left and right.

The pivot bracket 270 has its rear upper end hinge-coupled to the front upper end of the slider 250 via a hinge shaft 273 as shown in FIG. .

In particular, since the hinge shaft 273 penetrates through the upper end of the pivot bracket 270 and the slider 250 in the horizontal direction, the pivot bracket 270 connects the hinge shaft 273 coupled to the upper end of the slider 250 . As a reference, the lower end is provided to be rotated in the vertical direction.

A rotation cylinder 275 for rotating the pivot bracket 270 up and down is provided between the lower end of the pivot bracket 270 and the lower end of the slider 250 . The rear end of the rotary cylinder 275 is rotatably coupled to the lower outer end of the slider 250 , and the rod at the front end thereof is rotatably coupled to the outer lower end of the pivot bracket 270 .

Accordingly, when the rotating cylinder 275 is tensioned, the lower end of the pivot bracket 270 spreads from the slider 250 as shown in the lower drawing of FIG. When the rotation cylinder 275 is retracted in the opposite direction, the pivot bracket 270 is rotated in reverse with respect to the hinge shaft 273 as shown in the upper drawing of FIG. It is provided in close contact with the front of the 250 .

In addition, on the front surface of the pivot bracket 270 , pivot plates 271 protruding forward are provided on upper and lower sides, respectively, and the upper and lower pivot plates 271 protrude in the same shape. In particular, the pivot plate 271 is formed in a pentagonal shape with the central portion protruding the longest forward, and the pivot hole 272 to which the pivot shaft 274 is coupled is drilled in the central portion of the upper and lower pivot plate 271 in the vertical direction. has been provided

In addition, a swing cylinder 276 is provided between the pivot bracket 270 and the forklifter 260 to rotate the forklifter 260 to the left and right in the pivot bracket 270 . A rear end of the swing cylinder 276 is rotatably coupled to the pivot bracket 270 , and a rod at the front end thereof is rotatably coupled to one end of the forklifter 260 .

Accordingly, when the swing cylinder 276 is tensioned, the forklifter 260 is rotated from the right side to the left side of the pivot bracket 270 as shown in the lower view of FIG. 12 , and when the swing cylinder 276 is contracted, it is shown in FIG. As shown in the upper drawing, the forklifter 260 is provided to rotate from left to right of the pivot bracket 270 .

On the other hand, the forklifter 260 provided on the front part of the pivot bracket 270 is provided to protrude forwardly from the support frame 261 provided in parallel to the pivot bracket 270 and the front lower end of the support frame 261 . It includes a fork bar 264 that is.

The support frame 261 is provided by connecting a plurality of vertical frames and horizontal frames to cross each other, and a hinge plate 262 having a shape corresponding to the pivot plate 271 of the pivot bracket 270 on the rear surface of the support frame 261 . ) is formed to protrude, and a hinge hole 263 corresponding to the pivot hole 272 of the pivot plate 271 is formed in the central portion of the hinge plate 262 .

Accordingly, in a state in which the hinge plate 262 of the forklifter 260 and the pivot plate 271 of the pivot bracket 270 are overlapped, the pivot hole 272 and the hinge hole 263 are matched to combine the pivot shaft 274. By doing so, the forklifter 260 is provided rotatably left and right on the pivot bracket 270 with respect to the pivot shaft 274 .

In addition, the fork bar 264 may be provided with a predetermined length protruding forward of the support frame 261 in a state of being mounted and fixed to the lower front end of the support frame 261 , but as shown in FIG. It may be provided so as to extend the length of the fork bar 264 by mounting the auxiliary fork bar 264a of the.

In this case, the auxiliary fork bar 264a may be provided to be fixedly coupled to the rear end of the fork bar 264 by a fixing pin or the like while being fitted from the front end of the fork bar 264 . Hereinafter, the fork bar to which the auxiliary fork bar 264a is coupled is collectively referred to as one fork bar 264 .

Accordingly, since it is possible to transport a large size pallet with the fork bar 264, it is possible to transport a large amount of loaded goods at once.

In addition, the distance between the fork bars 264 may be adjusted by fixing the fork bars 264 as described above by adjusting their positions left and right in the support frame 261 .

In addition, the fork bar 264 as described above may be provided by mounting a separate attachment, that is, a bucket that is a working machine.

The operational relationship between the telescopic master and the forklifter according to the present invention as described above will be described.

First, the operation of the telescopic master 200 will be described. As shown in the right drawings of FIGS. 1 and 6 , when the forklifter 260 is in contact with the ground, which is the lowest point, when the forklifter 260 is raised, the operation cylinder 220 ), hydraulic pressure is supplied to the lower port.

Then, as the rod 221 of the operation cylinder 220 is withdrawn upward, the slide boom 230 surrounding the fixed boom 210 is moved upward like the rod 221 at the same time as the rod 221 is withdrawn. .

At this time, the slider 250 by the respective chains 240 connected to the upper and lower connecting links 213 and 214 of the fixed boom 210 and the upper and lower connecting links 252 and 253 of the slide boom 230 . ) is moved in the same direction as the movement direction of the slide boom 230 on the slide boom 230 at the same time as the movement of the slide boom 230, and accordingly, the forklifter 260 mounted on the slider 250 moves upward. is moved

That is, in the movement of the slider 250 as described above, the inner and outer chains 240 of the slide boom 230 are moved counterclockwise based on FIG. will move upwards.

Therefore, when the slide boom 230 is positioned at the upper end of the fixed boom 210 by the above operation, the slider 250 is also positioned at the upper end of the slide boom 230, so the forklifter 260 is the slider ( 250), as shown in the left drawings of FIGS. 2 and 6, and is positioned at the upper end of the slide boom 230.

In this state, when hydraulic pressure is supplied to the upper port of the operation cylinder 220, the telescopic master 200 is operated in the opposite manner as described above, so that the slider 250 and the forklifter 260 are on the ground as shown in the right drawings of FIGS. 1 and 6 . moves to a position in contact with

On the other hand, when the upper link 110 of the tractor 100 connected to the telescopic master 200 is contracted while the forklifter 260 is positioned at the highest point as described above, the telescopic master 200 as a whole is It is inclined toward the rear, that is, the tractor 100, and, conversely, when the upper link 110 is expanded, the entire telescopic master 200 is inclined toward the front, that is, the transport vehicle opposite to the tractor 100, as shown in FIG. It is possible to easily load the harvested crops into the loading box of the

In addition, when the rotating cylinder 275 of the pivot bracket 270 is operated in this state, the pivot bracket 270 is moved up and down from the front side of the slider 250 based on the hinge shaft 273 of the upper end as shown in FIG. 11 . It can be rotated, and the forklifter 260 mounted on the pivot bracket 270 also rotates up and down like the pivot bracket 270 .

And, when the swing cylinder 276 of the pivot bracket 270 is operated, the forklifter 260 is rotated from the front side of the slider 250 to the left and right as shown in FIG. Therefore, even when the tractor 100 is positioned on the side of the transport vehicle, the forklifter 260 is rotated left and right to accurately load and load the crops into the loading box of the transport vehicle.

Although the present invention has been described in detail through specific examples, this is intended to describe the present invention in detail, and the present invention is not limited thereto, and by those of ordinary skill in the art within the technical spirit of the present invention. It is clear that the modification or improvement is possible.

All simple modifications and variations of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

100: tractor 110: upper link
120: lower link 130: hydraulic cylinder
200: telescopic master 210: fixed boom
211,212: support roller 213,214: connection link
215: mounting bracket 216: connection bracket
220: working cylinder 221: rod
230: slide boom 231: support roller
232,233: sprocket wheel 234: cutout
240: chain 250: slider
251: support roller 252,253: connection link
260: forklifter 261: support frame
262: hinge plate 263: hinge ball
264: fork bar 264a: auxiliary fork bar
270: pivot bracket 271: pivot plate
272: pivot ball 273: hinge shaft
274: pivot shaft 275: rotary cylinder
276: swing cylinder

Claims (8)

As a telescopic master device provided in the telescopic master and having a forklifter that moves up and down,
The telescopic master includes a fixed boom, an operating cylinder fixed to the fixed boom and provided with a rod that enters and exits as hydraulic pressure is supplied to an upper end thereof, and a slide boom that is coupled to the fixed boom to slide and the rod of the operating cylinder is fixed; , It includes a slider coupled to slide to the slide boom,
The forklifter includes a pivot bracket provided by being rotatably coupled to the slider of the telescopic master up and down and left and right,
A rotating cylinder is provided between the pivot bracket and the telescopic master to rotate the pivot bracket up and down in the telescopic master,
A telescopic master device having a forklifter provided with a swing cylinder that rotates the forklifter left and right in the pivot bracket between the pivot bracket and the forklifter.
The method according to claim 1,
The telescopic master is provided by being hinged to the work vehicle, and the work vehicle is provided with an upper link and a lower link hinged to a fixed boom of the telescopic master, respectively, and rotates the telescopic master in the front and rear directions of the work vehicle to be inclined. A telescopic master device with
3. The method according to claim 2,
The slider is slidably coupled to the outer surface of the slide boom, the slide boom is slidably coupled to the outer surface of the fixed boom, and the working cylinder is provided to be built-in inside the fixed boom, and the rod of the working cylinder is the slide boom. A telescopic master device having a forklifter that is fixedly provided on the inner surface.
4. The method according to claim 3,
The upper end of the fixed boom is provided with a first support roller for supporting the slide boom in contact with the inner surface of the slide boom, and the first support roller is a telescopic having a fork lifter provided to be in contact with the inner surface of the slide boom on the opposite side of the forklifter. master device.
5. The method according to claim 4,
A telescopic master device having a forklifter provided at the upper end of the fixed boom in a direction orthogonal to the first support roller and provided with a second support roller in contact with the inner surface of the slide boom.
3. The method according to claim 2,
The slider is slidably coupled to the outer surface of the slide boom, and when the slide boom is slidably moved in the fixed boom, the telescopic master device having a forklifter that is provided to slide in the slide boom in the same direction as the slide boom.
7. The method of claim 6,
Each chain is connected to the fixed boom, one chain is connected to the upper part of the slider through the inner upper end of the slide boom, and the other chain is connected to the lower part of the slider through the outer lower end of the slide boom, so that the slide boom is fixed A telescopic master device having a forklifter provided to move the slider on the slide boom when it is moved from the boom.
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