KR102297035B1 - Telescopic master having fork lifter - Google Patents

Abstract

An object of the present invention is to provide the telescopic master apparatus having the forklifter to which the attachment is mounted, which can be rotated up and down and left and right by lifting the attachment provided with harvested crops. The present invention relates to a telescopic master apparatus having a forklifter to which an attachment is mounted. The telescopic master apparatus of the present invention comprises: the forklifter which is provided in a telescopic master and moves up and down; and the attachment mounted on the forklifter. According to the provided telescopic master apparatus, the forklifter includes: a support frame provided on the telescopic master via a pivot bracket; and a fork bar provided to protrude outward from the support frame. The attachment includes a bucket or bale tongs which are coupled to the fork bar.

Description

Telescopic master having fork lifter to which attachment is mounted

The present invention relates to a telescopic master device having a forklifter to which an attachment is mounted, and more particularly, various attachments can be mounted to a forklifter provided in the telescopic master, and the mounted attachment not only performs its own function, but also It relates to a telescopic master device having a forklifter equipped with an attachment that can rotate vertically and horizontally, such as a forklifter.

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 forklifter in which an attachment is mounted so that it can be rotated up and down and left and right by lifting the attachment with the harvested crop.

A telescopic master device having a forklifter to which an attachment is mounted according to the present invention for achieving the above object is a forklifter that is provided on a telescopic master and moves up and down, and a telescopic master including an attachment mounted on the forklifter. As a device, the forklifter includes a support frame provided to the telescopic master via a pivot bracket, a fork bar provided to protrude outward from the support frame, and the attachment may include a bucket or bail tongs provided by being coupled to the fork bar. have.

In addition, the pivot bracket may be provided with a rear portion thereof rotatably coupled to the telescopic master, and a forklifter may be provided with a front portion thereof rotatably coupled to the left and right.

In addition, a rotating cylinder for rotating the pivot bracket up and down in the telescopic master is provided between the pivot bracket and the telescopic master, and a swing cylinder for rotating the forklifter left and right in the pivot bracket between the pivot bracket and the fork lifter may be provided.

In addition, the bucket is hinged on its lower surface and includes a coupling bar provided to be detachably attached to the fork bar of the forklifter, and a rotary cylinder hingedly coupled to the coupling bar and the bucket. can be very provided.

In addition, the bale tongs include a mounting bracket provided to be detachably attached to the fork bar of the forklifter; a base bracket provided to be fixedly coupled to the mounting bracket; Rotating links hinged to both sides of the base bracket, respectively; Clamp arms which are coupled and fixed to both rotary links, respectively, to grip the bale while being rotated like the rotary link; It includes; a telescopic cylinder that is provided between both rotation links to close or spread both rotation links, and an extension part extending to the rear of the hinge part is formed in one rotation link of both rotation links, and the extension part of one rotation link and the other rotation link are rotated on the other side. An interlocking rod connecting the front of the hinge of the link to interlock and rotate both rotary links when the expansion and contraction cylinder is operated may be further provided.

And, the telescopic master is fixed to the fixed boom and the fixed boom, the upper end of which is provided with a rod that enters and exits by hydraulic pressure, and is coupled to be slidably moved to the outside of the fixed boom and the rod of the operating cylinder is fixedly provided It may include a slide boom and a slider coupled to the outside of the slide boom to be slidably coupled with a forklifter to the front thereof.

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, and the working cylinder is provided inside the fixed boom, while the rod of the working cylinder is the sliding boom of the slide boom. It is fixedly provided on the inner surface, and as the operation cylinder is operated, the slide boom and the sulrider are drawn out from the fixed boom or may be provided to be drawn in.

In addition, 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 moving in this fixed boom, the slider may be provided to move in the same direction as the slide boom.

According to the telescopic master device having a forklifter to which the attachment is mounted according to the present invention, the telescopic master connected to the upper link and the lower link at the rear of the work vehicle, and a forklifter that is provided in the telescopic master and rotates up and down and left and right is suitable for use By mounting and providing various attachments, the crops provided in the attachments can be lifted and rotated up and down, left and right, so you can not only load the crops from a long distance without transporting them to the nearest distance of the transportation vehicle, but also load the crops There is an advantage in that it can be loaded in the correct position in the loading box of the transport vehicle.

1 is a block diagram of a telescopic master and a forklifter of the present invention.
Figure 2 is a configuration diagram of the forklifter is lifted by the telescopic master of the present invention.
3 is an exploded view of the forklifter and the bucket according to the first embodiment of the present invention.
4 is a view showing a combination of the forklifter and the bucket according to the first embodiment of the present invention.
5 is an operational view showing a bucket in a rotated state in the forklifter according to the first embodiment of the present invention.
6 is an exploded view of a forklifter and a bale tongs according to a second embodiment of the present invention.
7 is a view showing a combination of a forklifter and a bale tongs according to a second embodiment of the present invention.
8 is an operation state diagram of the bale tongs provided in the forklifter according to the second embodiment of the present invention.
9 is a block diagram of a forklifter provided in the telescopic master according to the present invention.
10 is a separated configuration diagram of the telescopic master and the forklifter viewed from the front according to the present invention.
11 is a diagram illustrating the internal configuration of the telescopic master when the forklifter moves up and down in the telescopic master according to the present invention.
12 is a separated configuration diagram of the telescopic master and the forklifter viewed from the rear according to the present invention.
13 is a configuration diagram showing the configuration of a fork bar of the forklifter according to the present invention.
14 is an operation diagram of a state in which the forklifter according to the present invention is rotated up and down in the telescopic master.
15 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 15 are views illustrating an attachment provided in a telescopic master, a forklifter, and a forklifter according to the present invention.

1 and 2, the telescopic master device of the present invention is provided with a telescopic master 200 connected to and mounted on a work vehicle, that is, a tractor 100 (hereinafter, referred to as a "tractor"), the telescopic master 200 is provided with a forklifter 260 that moves up and down, and the forklifter 260 is provided with various attachments for performing a corresponding operation.

On the other hand, in this embodiment, the bucket 300 and the bail tongs 400 are exemplified as an example of the attachment provided in the forklifter 260, but the forklifter 260 may be equipped with more various attachments than this. have.

Among these attachments, the bucket 300 is provided with a coupling bar 310 hinged to its lower surface as shown in FIGS. 3 to 5 .

Here, the coupling bar 310 may be replaced with an auxiliary fork bar 264a of the forklifter 260 to be described later.

The coupling bar 310 is provided to correspond to the fork bar 264 of the forklifter 260 as a hollow member. That is, in the present embodiment, it is exemplified that the coupling bar 310 is provided in plurality like the fork bar 264 of the forklifter 260 as an example.

The plurality of coupling bars 310 are provided with their front ends hinge-coupled to the front end of the lower surface of the bucket 300, and the rear ends are respectively inserted into the fork bars 264 of the forklifter 260 and fixed by being coupled to the coupling bar 310. ) through which the bucket 300 can be provided to be detachably attached to the forklifter 260 .

At this time, a hinge bracket 320 to which a plurality of coupling bars 310 are respectively hinged is provided at the lower end of the bucket 300 .

Accordingly, the bucket 300 is provided such that the rear end is rotated in the front-rear direction with the front end hinged to the plurality of coupling bars 310 fixed to the fork bar 264 of the forklifter 260 as an axis, and with this, to be described later. It is provided to be lifted up and down and swing left and right by the forklifter 260 .

On the other hand, the plurality of coupling bars 310 are provided such that their rear ends are connected to each other by a connection link 311 , and a rotating cylinder 330 is hingedly provided between the connection link 311 and the bucket 300 .

The rotating cylinder 330 includes a cylinder body to which hydraulic pressure is supplied and a piston rod to and from one end of the cylinder body, the piston rod is hinged to the connecting link 311 , and the cylinder body is hinged to the bucket 300 . combined and provided.

Accordingly, when the piston rod is withdrawn from the rotary cylinder 330, the bucket 300 is rotated forward in the plurality of coupling bars 310 fixed to the forklifter 260 as shown in FIG. The bucket 300 is rotated to the rear so as to be seated and fixedly provided on the plurality of coupling bars 310 fixed to the forklifter 260 as shown in FIG. 4 .

In addition, as shown in FIGS. 6 to 8 , the bale tongs 400 among the attachments are provided to be detachably attached to the forklifter 260 through the mounting bracket 410 .

When describing the bale tongs 400 in detail, the bale tongs 400 include a mounting bracket 410 that is provided to be detachably attached to the fork bar 264 of the forklifter 260, and the mounting bracket 410. The base bracket 420 provided to be coupled and fixed, the rotation link 430 hinged to both sides of the base bracket 420, respectively, and both rotation links 430 are fixed to each other to rotate like the rotation link 430 It includes a clamp arm 431 for gripping the bale and a telescopic cylinder 450 provided between both rotation links 430 to close or spread both rotation links 430 .

In addition, an extension 430a extending to the rear of the hinge portion 430b is formed in the rotation link 430 on one side of the rotation link 430, and the extension portion 430a of the rotation link 430 and the other rotation of the one side rotation link 430 are rotated on the other side. An interlocking rod 440 is further provided to connect the front of the hinge portion 430b of the link 430 to interlock and rotate both rotary links 430 when the expansion and contraction cylinder 450 is operated.

The mounting bracket 410 includes a plurality of coupling bars 411, a vertical plate 412 installed vertically on both coupling bars 411, and a coupling bar 411 protruding from the front of the vertical plate 412 and It includes a plurality of clamp jigs 413 provided in parallel.

Here, the plurality of coupling bars 411 are hollow members respectively provided on the left and right sides corresponding to the fork bars 264 of the forklifter 260 , and the fork bars 264 of the forklifter 260 are provided at the rear end thereof, respectively. By being inserted and fixed, the mounting bracket 410 can be provided to be detachably attached to the forklifter 260 through the coupling bar 411 .

In addition, the plurality of clamp jigs 413 are hook-shaped jigs provided up and down, respectively, and hook portions opened in opposite directions are formed at their distal ends, respectively, on the hinge bars 421 of the base bracket 420 to be described later. combined and provided.

In particular, the plurality of clamping jigs 413 are coupled to the hinge bar 421 of the base bracket 420 in opposite directions to prevent rotation, and both the upper and lower clamp jigs 413 have a length that protrudes forward. There is an advantage in that assembling is improved by sequentially coupling the clamp jig 413 to the hinge bar 421 of the base bracket 420 as they are provided differently.

On the other hand, on the rear surface of the base bracket 420 coupled to the mounting bracket 410 as described above, a plurality of hinge bars 421 corresponding to the clamp jig 413 are provided, and the plurality of hinge bars 421 are vertically arranged. It is preferable in terms of improving assembly properties to be provided with spaced round bars.

In addition, the hinge bar 421 may be sequentially coupled to the plurality of clamp jigs 413 by being provided with different lengths protruding backward from each other.

In addition, a plurality of rotation links 430 are provided on the front surface of the base bracket 420 as described above to be rotated by being hinged to both sides of the base bracket 420 .

An extension portion 430a extending to protrude rearward of the hinge portion 430b with the base bracket 420 is formed in the rotation link 430 on one side of the rotation link 430, and the extension portion 430a is interlocked. One end of the rod 440 is hingedly provided.

That is, the interlocking rod 440 is provided to connect the extension 430a of the one side rotating link 430 and the other side rotating link 430 in front of the opposite hinge 430b, and thus the interlocking rod 440 is the base It is provided across the bracket 420 in an oblique direction.

The interlocking rod 440 provided in this way is provided to interlock and rotate both rotation links 430 when the expansion and contraction cylinder 450 is operated, and both rotation links 430 by the interlocking rod 440 are rotated at the same time as large. By rotating with the turning radius, it is possible to grip the bale more firmly.

And, the expansion cylinder 450 is provided between both rotation links 430 in front of the hinge part 430b, and when the expansion cylinder 450 is extended, both rotation links 430 are spread apart, and the expansion cylinder 450 is provided. When the is reduced, both rotary links 430 are closed.

In addition, a clamp arm 431 is fixedly provided at the distal end of the rotary link 430 as described above, and the tong arm 431 is formed to be round so that its inner peripheral surface has a curvature corresponding to the circumferential surface of the bale, thereby firmly tightening the bale. can be gripped.

The bale tongs 400 are provided on the forklifter 260 to be lifted up and down like the forklifter 260 , swing left and right, and rotate back and forth. At this time, the forward and backward rotation of the bale tongs 400 is rotated differently from the forward and backward rotation of the bucket 300 by being made by the forklifter 260 . That is, the bucket 300 is rotated downward in the forklifter 260 , but the bail tongs 400 are lifted and rotated upward in the forklifter 260 .

On the other hand, as shown in FIGS. 1 and 2 , the forklifter 260 is provided in the telescopic master 200 and is provided to be moved in the vertical direction by the telescopic master 200 .

The forklifter 260 is provided to rotate in the front-rear direction as the telescopic master 200 is connected to the upper link 110 and the lower link 120 of the work vehicle, that is, the tractor 100 .

As shown in FIGS. 9 to 12 , the forklifter 260 is mounted on the slider 250 of the telescopic master 200 via a pivot bracket 270 . 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. 10 and 12, 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 front part has a 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. 14, so that the rear surface of the pivot bracket 270 is a slider 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 to the left side of the pivot bracket 270 as shown in the lower view of FIG. 15 , 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 fixed state mounted on the lower front end of the support frame 261 , but as shown in FIG. 13 , a separate long length 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 a 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 280 which is a working machine.

At this time, the front end of the bucket 280 is hinged to the front end of the fork bar 264, and the rear end of the bucket 280 is connected to the fork bar 264 by a hydraulic cylinder (not shown). , the rear end of the bucket 280 by a hydraulic cylinder may be provided to rotate forward about the hinge of the front end of the shaft.

On the other hand, the telescopic master 200 to which the forklifter 260 is mounted, as shown in FIGS. 9 and 10 , includes a fixed boom 210 connected to and mounted on a work vehicle, and a fixed boom 210 . On the other hand, 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 slidably coupled to the fixed boom 210 and fixed. It includes a slide boom 230 provided so as to be slidably coupled to the slide boom 230 and a slider 250 to which a pivot bracket 270 is rotatably coupled up and down on its front surface.

First, a work vehicle on which the telescopic master 200 is mounted, that is, a tractor 100 (hereinafter referred to as a “tractor”) is shown in FIGS. 1 and 2 , various work machines including a forklifter 260 at the rear thereof. There is provided a link device that can be installed by connecting them.

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 forklifters 260 are connected to and mounted on the upper link 110 and the lower link 120 , and the forklifter 260 moves forward and backward with respect to the lower link 120 by the operation of the upper link 110 . It is rotated, 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.

The fixed boom 210, the slide boom 230, and the slider 250 constituting the telescopic master 200 are, as shown in FIGS. 9 to 12, the diameter of the fixed boom 210 <slide boom 230 ) < The slider 250 is provided in the order.

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 conversely, it can be raised to the top of the telescopic master 200, which is the highest point, so that the slider that moves up and down It is possible to secure the maximum stroke of (250).

When the diameter is opposite to this, the forklifter 260 mounted on the slider 250 can be lowered only to the upper end of the fixed boom 210 having the largest diameter, and the slider 250 and the forklifter 260 . The up-and-down stroke of the also has the disadvantage of being limited to the length of the slide boom 230 that enters and exits from 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 may be provided with a support roller of the demodulation supporting the slide boom 230 drawn out in contact with the inner surface of the slide boom 230, the support roller of the demodulation is the support roller of each group By supporting the inner surface of the slide boom 230 by being provided in directions orthogonal to each other, it is possible to support the bending moment acting in the front of the slide boom 230 as well as to guide the slide boom 230 moving up and down. .

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 that roll in contact with the outer surface of the fixed boom 210 are formed on both sides of the lower end of the fixed boom 210. It is provided to guide the movement of the slide boom 230 as well as to have resistance to the bending moment acting on the slide boom 230 .

In addition, upper and lower sprocket wheels 232 and 233 on which a plurality of chains 240 to be described later are engaged are rotatably provided on the front upper and lower ends of the slide boom 230 , respectively.

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. A support roller may be provided, and this support roller functions the same as the support roller of the slide boom 230 .

As shown in FIG. 11 , 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. 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.

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 will be described. As shown in FIG. 1 , when the forklifter 260 is raised in a state in which the forklifter 260 is in contact with the ground, the lowest point, hydraulic pressure is supplied to the lower port of the operation cylinder 220 . do.

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 FIGS. 9 and 10 by the rising slide boom 230, and the slider (250) is moved upward.

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 FIG. 2, it 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 way as described above, and the slider 250 and the forklifter 260 are lowered again as shown in FIG. 1 to meet the ground. will reach

On the other hand, when the upper link 110 of the tractor 100 connected to the telescopic master 200 is contracted in a state where 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 tractor 100, and, conversely, when the upper link 110 is expanded, the entire telescopic master 200 is inclined toward the transport vehicle in front based on FIG. be able to load it.

In addition, when the rotation 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 with the hinge shaft 273 of the upper end as shown in FIG. 14 . It can be rotated, and the forklifter 260 mounted on the pivot bracket 270 also rotates up and down like the pivot bracket 270 .

At this time, if the bucket 280 is provided on the fork bar 264 of the forklifter 260, the bucket 280 is rotated forward from the forklifter 260 to load the crops contained in the bucket 280 into the loading box of the vehicle. It can be poured into and loaded.

In addition, when the swing cylinder 276 of the pivot bracket 270 is operated, the forklifter 260 at the front of the slider 250 is rotated 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.

On the other hand, if various attachments, that is, the bucket 300 or the bale tongs 400 are mounted on the forklifter 260 operated as described above, the corresponding work using the bucket 300 or the bale tongs 400 can be conveniently performed. have.

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
213,214: connection link 215: mounting bracket
216: connection bracket 220: operating cylinder
221: rod 230: slide boom
232,233: sprocket wheel 240: chain
250: slider 252,253: connecting 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 300: bucket
310: coupling bar 311: connecting link
320: hinge bracket 330: rotating cylinder
400: bale tongs 410: mounting bracket
411: coupling bar 412: vertical plate
413: clamp jig 420: base bracket
421: hinge bar 430: rotary link
430a: extension 430b: hinge
431: clamp arm 440: interlocking rod
450: expansion cylinder

Claims (8)

A telescopic master device including a forklifter that is provided on a telescopic master and moves up and down, and an attachment that is mounted on the forklifter,
The forklifter includes a support frame provided to the telescopic master via a pivot bracket, and a fork bar provided to protrude outward from the support frame,
The attachment includes a bucket or bale tongs provided by being coupled to the fork bar,
The rear upper part of the pivot bracket is hinged to the front upper part of the telescopic master via a hinge shaft, and the rear lower part is provided with a rotating cylinder that rotates the pivot bracket up and down in the telescopic master,
The front of the pivot bracket is hinged with the support frame of the forklifter and the pivot shaft, and a swing cylinder is provided between the pivot bracket and the forklifter to rotate the forklifter left and right in the pivot bracket.
delete delete The method according to claim 1,
The bucket is hinged to its lower surface and includes a coupling bar provided to be detachably attached to and detached from the fork bar of the forklifter, and a rotating cylinder hingedly coupled to the coupling bar and the bucket,
A telescopic master device in which a bucket is rotated back and forth in a forklifter by a rotating cylinder.
The method according to claim 1,
The bale tongs include a mounting bracket provided to be detachably attached to the fork bar of the forklifter;
a base bracket provided to be fixedly coupled to the mounting bracket;
Rotating links hinged to both sides of the base bracket, respectively;
Clamp arms which are coupled and fixed to both rotary links, respectively, to grip the bale while being rotated like the rotary link;
It is provided between the two rotary links, and the expansion and contraction cylinder for closing or spreading the two rotary links; includes,
An extension portion extending to the rear of the hinge portion is formed on one of the rotation links among the rotation links,
A telescopic master device provided with an interlocking rod that connects the extension of one rotary link and the front of the hinge of the other rotary link to interlock and rotate both rotary links when the telescopic cylinder is operated.
The method according to claim 1,
The telescopic master includes a fixed boom, a working cylinder that is fixed to the fixed boom and a rod that enters and exits by hydraulic pressure at its upper end, and a slide boom that is coupled to the outside of the fixed boom to slide and the rod of the working cylinder is fixed And, a telescopic master device including a slider coupled to slide on the outside of the slide boom and to which the forklifter is coupled via a pivot bracket on its front side.
7. The method of claim 6,
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 inside the fixed boom, while the rod of the working cylinder is slidably coupled to the inner side of the slide boom. A telescopic master device that is provided to be fixed in, and is provided so that the slide boom and the sulrider are drawn out or drawn in from the fixed boom as the operating cylinder is operated.
8. The method of claim 7,
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 provided to move the slider in the same direction as the slide boom when it is moved from the boom.

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