KR20180061817A - Agricultural forklift - Google Patents

Abstract

According to one embodiment of the present invention, provided is an agricultural forklift, which comprises: a utility vehicle; a connector connected to a front portion of the utility vehicle; and a carrier unit connected to a front portion of the connector. Moreover, the carrier unit can be attached to and detached from the utility vehicle by the connector. Accordingly, running performance in a farmland and an off-load can be secured.

Description

{AGRICULTURAL FORKLIFT}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an agricultural forklift, and more particularly, to an agricultural forklift capable of attaching and detaching a manager and a carrying unit by a connecting portion.

The labor force of the Korean rural area has been deteriorating due to rapid industrialization in the mid - 1990s, resulting in declining human resources and deteriorating quality due to aging.

According to news reports, the number of people working in farm households and agriculture in Gyeonggi Province has been declining sharply. The proportion of the elderly (aged 65 and over) nationwide farming population has increased rapidly from 21.7% in 2000 to 39.1% in 2014, indicating a rapid aging trend. In the same period, the percentage of the elderly population of farm households in Gyeonggi increased from 17.0% to 32.3%.

At present, the rate of agricultural mechanization is 50%, which is less than the government's goal of 70%. Although Korea is the IT powerhouse and the fifth largest producer of robots in the world, there are still many practical applications of agriculture automation and mechanization technology. For aging farmers, it is hard to find a machine optimized for agriculture.

Farmers use powertrains and cultivators when transporting their goods, but often transport them directly when transporting a small amount of baggage or a small amount of baggage. In such cases, it may not be difficult for young people to do such work, but the aged farmers are injured by this work and may feel a great strain because of lack of strength. This, in turn, causes labor-productivity to deteriorate.

In order to improve labor-productivity, there is a need to develop a transportation device capable of carrying irregular zones such as agricultural land and narrow roads.

KR 20-2008-0009002, filed on July 5, 2008, discloses a " transport device using a management device ".

An object of the present invention is to provide a cushioning member which can be detachably attached to and detached from a management unit by a connection unit and which has a suspension function by a cushioning member provided at a connection unit, It is about forklifts.

An object of the present invention is to provide an agricultural forklift capable of moving a transportation object placed on a support by using the power of a manager and raising and lowering the support by a raising and lowering part mounted on the transportation part.

An object of the present invention is to provide a method of operating a hydraulic motor and a hydraulic cylinder by using an operation unit and capable of easily operating the hydraulic motor and the hydraulic cylinder and performing a transportation operation such as a farm material or harvested fruit in a narrow passage such as a greenhouse or a green house, The present invention relates to an agricultural forklift truck which can be easily operated.

An object of the present invention is to provide an agricultural forklift that can be easily used by farmers who are able to achieve work efficiency and cost reduction and are aged and feminized.

According to one aspect of the present invention, there is provided an agricultural forklift comprising: a manager; A connection unit connected to the front of the manager; And a carrying part connected to the front of the connecting part, wherein the carrying part can be detachably attached to the managing device by the connecting part.

According to one aspect of the present invention, the connection unit includes: a first connection member protruding forward from the manager; And a second connection member connected to the rear of the transportation unit and to which the first connection member is coupled, wherein the first connection member and the second connection member are connectable or separable to each other.

According to one aspect of the present invention, the connection portion may further include a buffer member connected between the first connection member and the second connection member.

According to one aspect of the present invention, the carrying unit includes a frame connected to the connecting portion and having a wheel mounted at a lower end thereof; And a support connected to the frame to support the object to be transported, wherein the wheel can be rotated by the power of the manager.

And a lifting / lowering part mounted on the carrier to move up and down the carrier, wherein the lifting and lowering part is maintained in a state of being mounted on the carrier when the carrier and the manager are separated from each other .

According to one aspect of the present invention, the ascending / descending portion includes: a hydraulic cylinder extending vertically in the carrying portion; A battery mounted behind the frame; And a hydraulic unit including a hydraulic motor and a hydraulic tank which are operated by receiving power from the battery, and the support base can be raised and lowered in the vertical direction by the hydraulic pressure supplied to the hydraulic cylinder in the hydraulic tank.

According to one aspect of the present invention, there is further provided an operating portion mounted on the manager and operating an operation of the ascending and descending portion, and the operation of the hydraulic motor can be controlled by the operating portion.

According to an agricultural forklift according to an embodiment of the present invention, the connection portion can be detachably connected to the management unit by the connection portion, and the connection portion performs a suspension function by the buffer member provided at the connection portion to secure the running property in the agricultural land and the off- .

According to the agricultural forklift according to the embodiment, the object to be carried on the support can be moved by using the power of the manager, and the support can be moved up and down by the ascending and descending part mounted on the conveying part.

According to the agricultural forklift according to the embodiment, the operation of the hydraulic motor and the hydraulic cylinder can be easily operated by using the operation unit, and the operation of transporting the agricultural material or the harvested fruit, etc. in a place where the passage is narrow, Or the upward / downward operation can be easily performed.

According to the agricultural forklift according to the embodiment, it is possible to achieve an improvement in work efficiency and a cost reduction effect, and it can be easily used by farmers aged and feminized.

1 shows a state in which a management unit and a transportation unit are separated by a connection unit in an agricultural forklift according to an embodiment.
FIG. 2 illustrates a state in which a management unit and a transportation unit are connected by a connection unit in an agricultural forklift according to an embodiment.
Fig. 3 shows a state in which the support is lifted and lowered by the lifting and lowering portion.
4 (a) and 4 (b) show a state in which the shock is absorbed by the suspension member mounted on the wheel of the frame.

Hereinafter, embodiments will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments, detailed description of known functions and configurations incorporated herein will be omitted when it may make the best of an understanding clear.

In describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

The components included in any one embodiment and the components including common functions will be described using the same names in other embodiments. Unless otherwise stated, the description of any one embodiment may be applied to other embodiments, and a detailed description thereof will be omitted in the overlapping scope.

FIG. 1 illustrates a state in which a management unit and a transportation unit are separated by a connection unit in an agricultural forklift according to an embodiment, FIG. 2 illustrates a state in which a management unit and a transportation unit are connected by a connection unit in an agricultural forklift according to an embodiment, Figs. 4A and 4B show a state in which the support is lifted and lowered by the lifting and lowering portion, and Figs. 4A and 4B show a state in which the shock is absorbed by the suspension member mounted on the wheel of the frame.

1 or 2, an agricultural forklift 10 according to an embodiment includes a management unit 100, a connection unit 200, a transportation unit 300, a lifting unit 400, and a control unit 500 have.

The management device 100 is generally simple in structure and light in weight, and can be operated in narrow and low space such as a vinyl house or a fruit orchard. In addition, it is easy to operate so that the elderly and women can easily use it, It is a machine made to be able to use it for various work such as Gulk, Hipip, and vinyl cloth. Recently, it has been used for various purposes such as planting in the house, grafting, and installation of a drainage hole.

The connection unit 200 may be connected to the front of the management device 100.

The connection unit 200 may include a first connection member 210 and a second connection member 220.

The first linking member 210 may protrude forward from the management unit 100 and the second linking member 220 may protrude rearward from the transporting unit 300.

For example, the first connection member 210 and the second connection member 220 are provided in male and female structures so that the first connection member 210 is inserted into the second connection member 220 and the second connection member 220 The first connecting member 210 may be fixedly inserted into the second connecting member 220 by a fastening member 230 formed of a bolt and a nut disposed outside the first connecting member 220. [

On the other hand, the first connecting member 210 can be separated from the second connecting member 220 by releasing the fastening member 230 disposed outside the second connecting member 220.

As described above, the first connection member 210 and the second connection member 220 can be easily coupled to or detached from each other, so that the manager can be easily replaced and the agricultural forklift 10 can be utilized in various aspects.

However, the engagement or disengagement structure of the first linking member 210 and the second linking member 220 is not limited to this, and may be a combination of the first linking member 210 and the second linking member 220 Anything is possible.

Also, although not specifically shown, the connection portion 200 may further include a buffer member.

The buffer member may be connected between the first connection member 210 and the second connection member 220. For example, the buffer member may be a buffer spring, and may be disposed in the second link member 220 to perform a suspension function. The impact transmitted to the management device 100 through the transportation unit 300 or the impact transmitted from the management device 100 to the transportation unit 300 can be absorbed so that the driving performance of the agricultural forklift 10 can be improved So that the object to be carried on the carrier 300 can be more stably transported.

Meanwhile, the carrying unit 300 may be connected to the front of the connection unit 200.

The carrier 300 may include a frame 310 and a support 320.

The frame 310 may be formed symmetrically with respect to the center of the manager 100 as a whole.

The frame 310 may be connected to the front of the carrier 300, particularly the second linking member 220, and at least one wheel 312 may be mounted on the lower end.

The at least one wheel 312 may be formed of, for example, four wheels, and two of the at least one wheel 312 may be mounted forward and rearward in the frame 310, respectively. However, the arrangement of the at least one wheel 312 in the frame 310 is not limited to this, and any of them is possible as long as the carrier can be stably transported.

The at least one wheel 312 may be rotated by the power of the manager 100. Thus, no separate power supply means need be mounted on the carrier 300 to drive at least one wheel 312.

At this time, considering the rated output 5hp of the manager 100, it is possible to carry 337.5kg at a speed of 4 km / h. There is a margin for the usage load of 117.5 kg excluding the self weight of 150 kg of the carrier 300 and the total weight of 220 kg of the management machine 100 weight of 70 kg and by setting the loading load on the carrier 300 to 100 kg, The load on the engine of the engine can be reduced.

In addition, the frame 310 may be connected to a support 320 on which the object to be transported is supported.

The support 320 may include a fork and a fork arm provided in a general forklift. The fork may extend forward from one side of the frame 310, the fork arm may be connected to the rear end of the fork, and may extend vertically from one side of the frame 310.

Meanwhile, a lifting and lowering part 400 for lifting and lowering the transportation part 300 can be connected to the transportation part 300.

1, the ascending and descending portion 400 may be maintained in a state in which the controller 100 and the carrier 300 are detached from the carrier 300 by the connection portion 200 .

Specifically, the ascending and descending portion 400 may include a hydraulic cylinder 410, a hydraulic motor 420, and a hydraulic tank 430.

The hydraulic cylinder 410 may be disposed to extend vertically with respect to the carrier 300, for example, the frame 310.

Specifically, the lower end of the hydraulic cylinder 410 may be connected to the lower rear end of the frame 310, and the upper end of the hydraulic cylinder 410 may be connected to the lower rear end of the support 320.

A plunger element 412 is disposed in the hydraulic cylinder 410 and can be moved up and down within the hydraulic cylinder 410 by the hydraulic pressure supplied into the hydraulic cylinder 410. For example, 410, respectively.

At this time, the plunger element 412 and the support 320 can be connected by a lift chain (not shown). For example, when the plunger element 412 of the hydraulic cylinder 410 is moved upward, the support 320 is moved upward by the lift chain and the plunger element 412 of the hydraulic cylinder 410 is moved downward When moved, the support 320 can be moved downward by the lift chain.

In addition, the battery 420 and the hydraulic unit 430 may be connected to the hydraulic cylinder 410.

The battery 420 is mounted on the rear side of the frame 310 and disposed on the lower side of the connection part 200. The hydraulic unit 430 is mounted on the rear side of the frame 310 and disposed on the lower side of the connection part 200 .

At this time, the hydraulic unit 430 includes a hydraulic motor and a hydraulic tank. The hydraulic motor is connected to the battery 420 to receive power from the battery 420, and the hydraulic tank is connected to the hydraulic cylinder 410 And the hydraulic pressure can be supplied to the hydraulic cylinders.

3, when power is received from the battery 420 and hydraulic pressure is supplied from the hydraulic tank to the hydraulic cylinder 410 by the hydraulic motor of the hydraulic unit 430, the plunger element 412 And the support chain 320 can be moved upward by the lift chain. Whereby the object to be transported supported on the support platform 320 can be raised and lowered.

On the other hand, when the hydraulic pressure is removed from the hydraulic cylinder 410, the plunger element 412 is moved downward, and the support base 320 is moved downward by the lift chain so that the object to be supported, which is supported on the support base 320, .

In order to control the operation of the ascending and descending part 400, the control part 500 may be mounted on the controller 100. [

The operation unit 500 may be detachably attached to the management device 100 by a magnet, for example, for the convenience of the user.

The plurality of buttons may include a first button 502 for raising and lowering the ascending and descending part 400 and a second button 504 for lowering the ascending and descending part 400. [ .

Accordingly, when the user presses the first button 502, the hydraulic motor of the hydraulic unit 430 operates, and the flow rate of the hydraulic tank can be introduced into the hydraulic cylinder 410 through the hydraulic hose. As a result, the plunger element 412 is moved upward due to an increase in the flow rate in the hydraulic cylinder 410, so that the support 320 can be raised and lowered with respect to the frame 310.

On the other hand, when the user presses the second button 504, the flow rate in the hydraulic cylinder 410 can be returned to the hydraulic tank through the hydraulic hose. As a result, the plunger element 412 is moved downward due to the decrease in the flow rate in the hydraulic cylinder 410, so that the support member 320 can be lowered with respect to the frame 310.

4 (a) and 4 (b), a suspension member 330 is additionally disposed between the frame 310 and the at least one wheel 312, so that at least one wheel 312 And the like can be absorbed.

The suspension member 330 may include a height adjustment element 332, a hydraulic cylinder 334, and a suspension arm 226.

The height adjustment element 332 may include a fluid supply line 3322 and a fluid return line 3324 that are arranged to be fluidly connected to the hydraulic tank 430 included in the ascending and descending section 400.

The fluid supply line 3322 may transfer fluid from the hydraulic tank 430 to the garage adjust element 332 and the fluid return line 3324 may transmit fluid disposed in the garage adjust element 332 to the hydraulic tank 430. [ .

In addition, the height adjustment element 332 may further include a fluid delivery line 3326 that supplies the fluid introduced into the height adjustment element 332 to the hydraulic cylinder 334. Whereby the garage adjusting element 332 and the hydraulic cylinder 334 can be fluidly connected.

In addition, the height adjustment element 332 may include a connection member 3328 connected to an end of the suspension arm 336, and the connection member 3328 may be coupled to the height adjustment element 332 in response to the operation of the suspension arm 336. [ So as to control the supply or discharge of fluid in the height adjustment element 332. [

The height adjustment element 332 may be connected to the hydraulic cylinder 334 via the fluid delivery line 3326 as described above.

The hydraulic cylinder 334 receives fluid or hydraulic pressure from the garage adjusting element 332 and the hydraulic cylinder 334 is provided with a vertical moving element 3342 which is moved up and down by the hydraulic pressure supplied in the hydraulic cylinder 334 Can be connected. At this time, the up-and-down moving element 3324 may be connected to one side of the suspension arm 336.

On the other hand, one end of the suspension arm 336 is hinged to the frame 310 and can be connected to the garage adjusting element 332 via the connecting member 3328. One side of the suspension arm 336 may be connected to the hydraulic cylinder 334 through a vertical moving element 3342 and a wheel 312 running on the ground may be connected to the other end of the suspension arm 336.

4 (a) shows a case where no external impact is applied to the wheel 312, and FIG. 4 (b) shows an external impact applied to the wheel 312.

Referring to FIG. 4 (b), when an external impact is applied, the height between the wheel 312 and the frame 310 is reduced, and accordingly, the vertical moving element 3342 is moved upward in the hydraulic cylinder 334 , The connecting member 3328 can be moved in the left direction within the height adjustment element 332. [ As a result, fluid can be transferred from the height adjustment element 332 to the hydraulic tank 430 via the fluid return line 3324. Whereby the frame 310 can be stably supported against the wheel 312 despite the external impact.

4 (a) and 4 (b), the suspension member 330 may further include a hydraulic spring, for example, the hydraulic spring may include a hydraulic cylinder 334 and a suspension arm (not shown) 336 may be disposed outside the up-and-down moving element 3342.

However, the structure of the suspension member 336 is not limited to this, and the frame 310 can be stably supported by the wheel 312, and the fluid stored in the hydraulic tank 430 can be used to efficiently absorb shock or vibration Anything that can be done is possible.

The agricultural forklift according to one embodiment of the present invention can move the object to be transported on the support by using the power of the manager and raise and lower the support by the ascending and descending portion mounted on the transporting portion. In addition, the operation of the hydraulic motor and the hydraulic cylinder can be easily operated by using the operation unit, and the transportation work of the farm material or the harvested fruit can be easily performed in the place where the passage such as the greenhouse or the greenhouse is narrow. have. As a result, it is possible to improve the work efficiency and reduce the cost, and it can be easily used by farmers who are aged and feminized.

Although the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And various modifications and changes may be made thereto without departing from the scope of the present invention. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

10: Agricultural forklift
100: Manager
200: Connection
300:
400:
500:

Claims (7)

Manager;
A connection unit connected to the front of the manager; And
A carrying part connected to the front of the connecting part;
Lt; / RTI >
And the conveying portion can be detachably attached to the manager by the connecting portion.
The method according to claim 1,
The connecting portion
A first connection member protruding forward from the manager; And
A second connecting member connected to the rear of the carrying unit and coupled with the first connecting member;
Lt; / RTI >
Wherein the first linking member and the second linking member are engageable or separable from each other.
3. The method of claim 2,
The connecting portion
A buffer member connected between the first connection member and the second connection member;
Wherein the forklift is an agricultural forklift.
The method according to claim 1,
[0027]
A frame connected to the connection portion and having a wheel mounted at a lower end thereof; And
A support connected to the frame to support the object to be transported;
Lt; / RTI >
Wherein the wheel is rotated by the power of the manager.
5. The method of claim 4,
A lifting and lowering portion mounted on the carrying portion to move up and down the carrying portion;
Further comprising:
Wherein the ascending and descending portion is held in a state of being mounted on the carrying portion in a state in which the carrying portion and the manager are separated from each other.
6. The method of claim 5,
The ascending /
A hydraulic cylinder extending vertically in the carrying part;
A battery mounted behind the frame; And
A hydraulic unit including a hydraulic motor and a hydraulic tank which are operated by receiving power from the battery;
Lt; / RTI >
Wherein the support base is vertically raised and lowered by the hydraulic pressure supplied to the hydraulic cylinder in the hydraulic tank.
The method according to claim 6,
An operating unit mounted on the manager and operating an operation of the ascending and descending portion;
Further comprising:
And the operation of the hydraulic motor is controlled by the operation unit.

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