KR20190043450A - Agricultural Vehicle - Google Patents

Abstract

The present invention relates to an agricultural work vehicle comprising: a power unit to generate power to move a vehicle body; a forward pedal unit installed on the vehicle body; a backward pedal unit installed on the vehicle body; a forward link unit to connect the forward pedal unit and the power unit; a backward link unit to connect the backward pedal unit and the power unit; and a linking unit to connect the forward link unit and the backward link unit to move the forward pedal unit and the backward pedal unit in opposite directions, and operate the power unit as the forward pedal unit and the backward pedal unit are moved. The linking unit includes: a forward linking member to which the forward link unit is connected; a backward linking member to which the backward link unit is connected; and a joining member coupled to the forward linking member and the backward linking member. The joining member is extended in a left and a right direction to separate the forward link unit and the backward link unit from each other in the left and the right direction.

Description

[0002] Agricultural vehicles [0003]

The present invention relates to an agricultural working vehicle used for growing crops necessary for human life by using land.

Agricultural working vehicles are used to cultivate the crops needed for human life by using land. For example, Combine, Tractor, and so on correspond to agricultural work vehicles. The combine is to perform the task of taking the crops such as rice, barley, wheat, The tractor performs the work necessary to grow the crop using the traction force.

The agricultural working vehicle according to the prior art includes a forward pedal portion, a backward pedal portion, and a power portion.

The forward pedal portion is for moving the vehicle body of the agricultural working vehicle forward. The forward pedal portion is moved by stepping on by an operator. The operator can adjust the speed at which the vehicle body is moved forward by adjusting the degree of stepping on the forward pedal portion. If the forward pedal portion is not moved by the operator, the vehicle body is not accelerated forward.

The reverse pedal portion is for moving the vehicle body rearward. And the rear side is the direction opposite to the front side. The backward pedal portion is moved by stepping on by the operator. The operator can adjust the speed at which the vehicle body is moved rearward by adjusting the degree of stepping on the backward pedal portion. If the reverse pedal portion is not moved by the operator, the vehicle body is not accelerated backward.

On the other hand, the agricultural working vehicle according to the prior art is implemented such that the forward pedal portion and the backward pedal portion are moved in directions opposite to each other. When the operator presses the forward pedal portion, the backward pedal portion is moved upward (upward), and when the operator presses the backward pedal portion, the forward pedal portion is moved upward. The upward direction is a direction opposite to a direction in which the operator steps on the forward pedal portion and the backward pedal portion. This is for the purpose of preventing a malfunction of the power unit or the like by simultaneously pressing both pedal portions when the operator pushes the forward pedal portion or the backward pedal portion to move the vehicle body.

The power unit generates power for moving the vehicle body of the agricultural working vehicle forward and backward. The power unit is operated as the forward pedal unit and the reverse pedal unit are moved. When the forward pedal portion is moved, the power portion generates power for moving the vehicle body forward. When the rearward pedal portion is moved, the power portion generates power for moving the vehicle body backward.

Here, in the agricultural working vehicle according to the prior art, the forward pedal portion and the backward pedal portion are implemented to be interlocked with each other using the cam gear structure.

Accordingly, the agricultural working vehicle according to the prior art has the following problems.

In the agricultural working vehicle according to the prior art, the structure for interlocking the forward pedal portion and the backward pedal portion is implemented by a cam gear structure, so that the devices having a complex shape for processing such as a cam are increased. Therefore, the agricultural working vehicle according to the related art has a problem in that it takes time to process the mechanisms for interlocking the forward pedal portion and the backward pedal portion, and the cost for machining.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an agricultural working vehicle in which a structure in which a forward pedal portion and a backward pedal portion are interlocked is implemented as a link connection structure.

In order to solve the above problems, the present invention can include the following configuration.

An agricultural working vehicle according to the present invention includes: a power unit for generating power for moving a vehicle body; A forward pedal portion provided in the vehicle body; A forward pedal portion provided on the vehicle body; A forward link portion connecting the forward pedal portion and the power portion; A reverse link portion connecting the forward pedal portion and the power portion; And the forward link portion and the backward link portion are connected to each other to move the forward pedal portion and the backward pedal portion in directions opposite to each other and the forward and backward pedal portions and the backward pedal portion are moved, Wherein the linkage portion includes a forward linkage member to which the forward link portion is connected, a reverse linkage member to which the reverse link portion is connected, and a joint member coupled to the forward linkage member and the reverse linkage member, The forward link portion and the backward link portion may be spaced apart from each other with respect to the lateral direction.

According to the present invention, the following effects can be achieved.

First, according to the present invention, the structure for linking the power section, the forward pedal section, and the backward pedal section is realized by a link connection structure other than a cam gear structure. Accordingly, the present invention is capable of reducing the number of devices having complicated shapes for machining when the structure for interlocking the power section, the forward pedal section, and the backward pedal section is realized by a cam gear structure. Therefore, the present invention can contribute to a reduction in the time taken for machining the power section, the forward pedal section, and the mechanisms for interlocking the backward pedal section, and the cost of machining.

Second, the present invention is implemented such that the forward link portion and the backward link portion are movable at positions spaced apart from each other with respect to the lateral direction. Therefore, according to the present invention, since the forward link portion and the backward link portion collide with each other while being moved, they are prevented from being broken or damaged, thereby increasing the cycle time for the maintenance work and increasing the operation rate.

'자 형태로 형성되도록 구현된다. 이에 따라, 본 발명은 전진연동부재 및 후진연동부재가 직접 결합되어 연동부가 대략적으로 '

'자 형태로 형성되도록 구현된 비교예에 대비할 때, 전진연동부재 및 후진연동부재에 가해지는 힘이 분산되는 정도를 증대시킬 수 있다. 따라서, 본 발명은 연동부가 작동하는 과정에서 전진연동부재 및 후진연동부재가 이음부재에 대해 뒤틀리는 정도를 감소시키므로, 전진연동부재에 연결된 전진링크부와 후진연동부재에 연결된 후진링크부도 뒤틀리는 정도를 감소시킬 수 있다.Third, according to the present invention, since the forward linkage member and the backward linkage member are indirectly coupled through the coupling member without being directly coupled,

Quot; shape. Accordingly, in the present invention, the forward interlocking member and the backward interlocking member are directly coupled to each other,

In comparison with the comparative example in which the force is applied to the forward and backward movement members, the degree of dispersion of the force applied to the forward and backward movement members can be increased. Accordingly, the present invention reduces the degree of warping of the forward linkage member and the backward linkage member with respect to the connecting member in the course of operation of the linkage unit, thereby reducing the degree of warping of the forward linkage unit connected to the forward linkage member and the backward linkage unit connected to the backward linkage member .

1 is a schematic perspective view of an agricultural working vehicle according to the present invention;
Fig. 2 is a schematic side view showing the forward pedal portion in the agricultural working vehicle according to the present invention. Fig.
3 and 4 are schematic side views showing a state in which the forward pedal portion and the backward pedal portion are moved in directions opposite to each other in the agricultural working vehicle according to the present invention
Fig. 5 is a schematic plan view showing the forward pedal portion and the backward pedal portion in the agricultural working vehicle according to the present invention. Fig.
Figs. 6 and 7 are schematic enlarged views showing an enlarged view of a portion A in Fig. 1 in the agricultural working vehicle according to the present invention
8 is a schematic side view showing a state in which the forward rotation mechanism is installed on the forward pedal portion in the agricultural working vehicle according to the present invention
Fig. 9 is a schematic side view showing a state in which the forward transmission mechanism is connected to the forward rotation mechanism and the interlocking portion in the agricultural working vehicle according to the present invention
10 is a schematic side view showing a state in which the interlocking portion rotates counterclockwise as the forward rotation mechanism rotates in the clockwise direction in the agricultural working vehicle according to the present invention
11 is a schematic perspective view showing the forward left and right members, the forward and downward members, and the forward and backward members in the agricultural working vehicle according to the present invention.
12 is a schematic side view showing a state in which a reverse rotation mechanism is installed in a reverse pedal portion in an agricultural working vehicle according to the present invention
13 is a schematic side view showing a state in which the backward transmission mechanism is connected to the backward rotation mechanism and the interlocking portion in the agricultural working vehicle according to the present invention
FIG. 14 is a schematic side view showing a state in which the interlocking portion rotates clockwise as the reverse rotation mechanism rotates in the clockwise direction in the agricultural working vehicle according to the present invention
Fig. 15 is a schematic perspective view showing the rear left and right members, the rear upper and lower members, and the back and forth members in the agricultural working vehicle according to the present invention.
FIG. 16 is a schematic perspective view showing an operation process when the forward pedal plate is depressed in the agricultural working vehicle according to the present invention. FIG.
Fig. 17 is a schematic perspective view showing an operation process when the backward pedal plate is stepped on in the agricultural working vehicle according to the present invention. Fig.
Fig. 18 is a schematic rear view showing an interlocking portion in the agricultural working vehicle according to the present invention
FIG. 19 is a schematic perspective view showing a state in which a buffering portion is installed in an agricultural working vehicle according to the present invention. FIG.
20 is a schematic block diagram showing a process of operating the neutral portion in the agricultural working vehicle according to the present invention
FIG. 21 is a schematic perspective view showing a state in which a neutral portion is installed in an agricultural working vehicle according to the present invention. FIG.
FIG. 22 is a schematic perspective view showing an operating mechanism of the agricultural working vehicle according to the present invention,
23 is a schematic side view showing the contact member in contact with the sensing mechanism in the agricultural working vehicle according to the present invention
FIG. 24 is a schematic side view showing a state in which the contact member is separated from the detection mechanism as the forward pedal portion is pressed, in the agricultural working vehicle according to the present invention
Fig. 25 is a schematic side view showing a state in which the contact member is separated from the detection mechanism by pressing the backward pedal portion in the agricultural working vehicle according to the present invention
Fig. 26 is a schematic perspective view showing the contact surface of the agricultural working vehicle according to the present invention formed to have a larger area than the sensing surface. Fig.

Hereinafter, embodiments of the agricultural working vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, the agricultural working vehicle 1 according to the present invention is used for cultivating crops necessary for human life by using land. For example, a combine, a tractor, or the like may be applied to agricultural working vehicles. The combine is to perform the task of taking the crops such as rice, barley, wheat, The tractor performs the work necessary to grow the crop using the traction force. The agricultural working vehicle 1 according to the present invention can be operated by an operator aboard the vehicle body 100. [

The agricultural working vehicle 1 according to the present invention comprises a power section 2 for generating power for moving the vehicle body 100, a forward pedal section 3 provided on the vehicle body 100, A rearward pedal portion 4 provided on the vehicle body 100, a forward link portion 5 connecting the forward pedal portion 3 and the power portion 2, the forward pedal portion 4 and the power portion 2 and a linking portion 7 to which the forward link portion 5 and the backward link portion 6 are connected.

The interlocking portion 7 operates the power portion 2 as the forward pedal portion 3 and the backward pedal portion 4 are moved and the forward pedal portion 3 and the backward pedal portion 4 (5) and the backward link portion (6) are moved in directions opposite to each other.

The interlocking portion 7 includes a forward linkage member 71 connected to the forward link portion 5, a forward linkage member 72 connected to the forward linkage portion 6 and a forward linkage member 72 connected to the forward linkage member 71, And a coupling member (73) coupled to each of the interlocking members (72)

The joint member 73 is formed to extend along the left-right direction (X-axis direction) so that the forward link portion 5 and the backward link portion 6 are spaced apart from each other with respect to the left-right direction (X-axis direction) .

Therefore, the agricultural working vehicle 1 according to the present invention can achieve the following operational effects.

First, in the agricultural working vehicle 1 according to the present invention, the structure for interlocking the power section 2, the forward pedal section 3, and the backward pedal section 4 is realized by a link connection structure other than a cam gear structure do. Accordingly, the agricultural working vehicle 1 according to the present invention is suitable for the case where the structure for interlocking the power section 2, the forward pedal section 3, and the backward pedal section 4 is realized by a cam gear structure , It is possible to reduce the number of devices having complex shapes to be processed. Therefore, the agricultural working vehicle 1 according to the present invention takes time to process the mechanisms for interlocking the power section 2, the forward pedal section 3, and the backward pedal section 4, And the like.

Second, the agricultural working vehicle 1 according to the present invention is configured such that the forward link portion 5 and the backward link portion 6 are movable at a position spaced apart from each other with respect to the left-right direction (X-axis direction) . Therefore, the agricultural working vehicle 1 according to the present invention prevents the breakage or damage of the forward link portion 5 and the backward link portion 6 as they collide with each other, The operation rate can be increased.

'자 형태로 형성되도록 구현된다. 이에 따라, 본 발명에 따른 농업용 작업차량(1)은 상기 전진연동부재(71) 및 상기 후진연동부재(72)가 직접 결합되어 상기 연동부(7)가 대략적으로 '

'자 형태로 형성되도록 구현된 비교예에 대비할 때, 상기 전진연동부재(71) 및 상기 후진연동부재(72)에 가해지는 힘이 분산되는 정도를 증대시킬 수 있다. 따라서, 본 발명에 따른 농업용 작업차량(1)은 상기 연동부(7)가 작동하는 과정에서 상기 전진연동부재(71) 및 상기 후진연동부재(72)가 상기 이음부재(73)에 대해 뒤틀리는 정도를 감소시키므로, 상기 전진연동부재(71)에 연결된 상기 전진링크부(5)와 상기 후진연동부재(72)에 연결된 상기 후진링크부(6)도 뒤틀리는 정도를 감소시킬 수 있다.Thirdly, the agricultural working vehicle 1 according to the present invention is indirectly coupled to the forward linkage member 71 and the backward linkage member 72 through the joint member 73 without being directly engaged with each other, 7) is roughly '

Quot; shape. Accordingly, in the agricultural working vehicle 1 according to the present invention, the forward interlocking member 71 and the backward interlocking member 72 are directly coupled to each other so that the interlocking portion 7 is approximately '

The degree of dispersion of the force applied to the forward interlocking member 71 and the backward interlocking member 72 can be increased. Therefore, in the agricultural working vehicle 1 according to the present invention, the degree to which the forward interlocking member 71 and the backward interlocking member 72 are twisted with respect to the joint member 73 during the operation of the interlocking portion 7, The degree of warping of the forward link portion 5 connected to the forward linkage member 71 and the back link portion 6 connected to the backward linkage member 72 can also be reduced.

Hereinafter, the present invention will be described with respect to the power section 2, the forward pedal section 3, the backward pedal section 4, the forward link section 5, the backward link section 6, Will be described in detail with reference to the drawings.

Referring to FIG. 1, the power unit 2 (shown in FIG. 1) generates power for moving the vehicle body 100 (shown in FIG. 1). The power unit 2 can be operated as the forward pedal unit 3 and the backward pedal unit 4 are moved. As the forward pedal section 3 is moved, the power section 2 can generate power for moving the vehicle body 100 forward (in the arrow direction of the FD). As the rearward pedal portion 4 is moved, the power portion 2 can generate power for moving the vehicle body 100 rearward (in the direction of the BD arrow).

The power unit 2 may be a hydrostatic transmission (HST). In this case, the power unit 2 can generate power for rotational speed-change motion through the hydraulic oil flowing from a hydraulic pump (not shown). To this end, the power unit 2 may include a swash plate (not shown) and a power shaft 21.

The swash plate adjusts the hydraulic pressure of the hydraulic oil through an inclined angle. For example, when the inclination of the swash plate is increased, the difference between the hydraulic pressure of the operating fluid and the hydraulic pressure of the discharged working fluid increases, so that the power section 2 can generate greater power. When the degree of inclination of the swash plate is reduced, the difference between the hydraulic pressure of the operating fluid and the hydraulic pressure of the discharged working fluid is reduced, so that the power section 2 can generate smaller power. The power unit 2 may adjust the direction in which the vehicle body 100 is moved according to a direction in which the swash plate is inclined.

The power shaft 21 is connected to the swash plate. The power shaft 21 can be rotated as the forward pedal portion 3 and the backward pedal portion 4 are moved. As the power shaft 21 is rotated, the direction and degree of inclination of the swash plate connected to the power shaft 21 can be adjusted. 1, when the power shaft 21 is rotated in the clockwise direction (CW arrow direction), the power unit 2 is moved in the backward direction (BD arrow direction) It is possible to generate a power for driving. In this case, the power section 2 can generate power in proportion to the degree of rotation of the power shaft 21 in the clockwise direction (CW arrow direction). 1, when the power shaft 21 is rotated in the counterclockwise direction (CCW arrow direction), the power section 2 is positioned in the forward (FD arrow direction) of the vehicle body 100 The power for moving can be generated. In this case, the power unit 2 can generate power in proportion to the degree of rotation of the power shaft 21 in the counterclockwise direction (CCW arrow direction).

Referring to FIGS. 1 to 6, the forward pedal portion 3 is installed in the vehicle body 100. The forward pedal portion 3 may be installed on the vehicle body 100 so as to be rotatable about a pedal rotation axis 110. Therefore, the forward pedal portion 3 can be rotated about the pedal rotational shaft 110 according to the operation of the operator.

Referring to FIGS. 1 to 5, the forward pedal portion 3 may include a forward pedal plate 31.

The forward pedal plate 31 is a pedestal for an operator to operate the forward pedal portion 3. Referring to FIG. 3, when the operator presses the forward pedal plate 31, the forward pedal portion 3 can rotate in the clockwise direction (CW arrow direction) about the pedal rotational shaft 110. On the other hand, if the operator does not step on the forward pedal plate 31, the forward pedal portion 3 can be rotated in the counterclockwise direction (CCW arrow direction) around the pedal rotational shaft 110 by the restoring force. The forward pedal plate 31 may be installed near a passenger seat (not shown) for an operator to ride on the vehicle body 100. The forward pedal plate 31 may be installed at a position spaced apart from the interlocking portion 7 in the left-right direction (X-axis direction). The left-right direction (X-axis direction) is a direction perpendicular to the front (FD arrow direction) and the rear direction (BD arrow direction).

Referring to Figs. 3 to 6, the forward pedal portion 3 may include a forward slant member 32. Fig.

The forward reclining member 32 is formed to be inclined in the outward direction (the direction of the arrow ED) as it extends forward (in the arrow direction of the FD). The outward direction (ED arrow direction) is a direction away from the vehicle body with respect to the lateral direction (X axis direction). The forward slope member 32 may be located rearward (in the direction of the arrow BD) with respect to the forward pedal plate 31 and may be connected to the forward pedal plate 31. The forward inclined member 32 is formed to be inclined in the outward direction (the direction of the arrow ED) as it extends forward (in the arrow direction of the FD) (In the direction of the arrow ED). Therefore, the forward pedal plate 31 can be disposed at a position spaced apart from the interlocking portion 7 in the outward direction (direction of the arrow ED) through the forward slant member 32.

Accordingly, the agricultural working vehicle 1 according to the present invention is configured such that the forward movement pedal 5 is moved from the interlocking portion 7 in which the power portion 2, the forward link portion 5, the backward link portion 6, The plate 31 is spaced apart in the outward direction (the direction of the arrowed arrow), so that the number of the mechanisms provided in the vicinity of the interlocking portion 7 is further reduced. Therefore, the agricultural working vehicle 1 according to the present invention can prevent a collision with other equipment in the vicinity of the interlocking portion 7 during the movement of the forward pedal portion 3 by the operator. In addition, since the agricultural work vehicle 1 according to the present invention further increases the free space for the maintenance work, the ease with which the maintenance work is performed is further increased, It may prevent further safety accidents.

The forward reclining member 32 can revolve around the pedal rotation shaft 110 as an operator steps on the forward pedal plate 31. The forward slope member 32 may be formed in the form of a bar but is not limited thereto and may be formed in any other shape as long as it connects the forward pedal plate 31 and the pedal rotation shaft 110.

Here, the agricultural working vehicle 1 according to the present invention may include various embodiments according to the manner in which the forward pedal portion 3 is coupled to the forward link portion 5. Hereinafter, an embodiment of the manner in which the forward pedal portion 3 is coupled to the forward link portion 5 in the agricultural working vehicle 1 according to the present invention will be described in detail with reference to the accompanying drawings.

≪ Embodiment 1 >

Referring to FIGS. 5 and 6, the forward pedal portion 3 may include an advance-spacing member 33.

The forward spacing member 33 separates the forward link portion 5 from the backward pedal portion 4 with respect to the left-right direction (X-axis direction). Therefore, the forward link portion 5 can be moved in the other range apart from the range of movement in which the forward pedal portion 4 is moved through the forward spacing member 33. Accordingly, the agricultural working vehicle 1 according to the present invention is configured such that the forward link portion 5 and the backward pedal portion 4 are moved together while the forward link portion 5 and the backward pedal portion 4 are moved together, Can be prevented from colliding with each other. Accordingly, the agricultural working vehicle 1 according to the present invention can prevent breakage or failure that may occur due to collision of the forward link portion 5 and the backward pedal portion 4, thereby increasing the period of maintenance work The operation rate can be further increased.

The forward spacing member 33 may be integrally formed with the forward slant member 32. In this case, the advance spacers 33 may be formed in the form of a bar with the forward reclining members 32 and then formed through a bending process. Accordingly, the agricultural working vehicle 1 according to the present invention is constructed so that the forward-moving spacing member 33 can be formed through a simple process and structure without having a separate structure, The production cost can be reduced.

The forward spacing member 33 may be positioned rearward (in the direction of the arrow BD) with respect to the forward slant member 32. The advance separation member 33 may be formed to have a curved surface such that the center of curvature thereof is located in an inner direction (ID arrow direction) with respect to the forward slant member 32. The inner direction (ID arrow direction) is a direction toward the vehicle body 100 with respect to the lateral direction (X-axis direction) in a direction opposite to the outward direction (ED arrow direction). The forward spacing member 33 can be rotated about the pedal rotational shaft 110 as an operator presses the forward pedal plate 31.

≪ Embodiment 2 >

7, the forward pedal portion 3 is coupled directly to the forward link portion 5 or through a pedal shaft (not shown) installed on the vehicle body 100 so as to function as the pedal rotational shaft 110 And may be connected to the forward link portion 5. Accordingly, the agricultural working vehicle 1 according to the present invention can omit a separate manufacturing process for forming the advance spacing member 33 in the forward pedal portion 3, so that the production cost is reduced, And the production time can be shortened.

Referring to FIGS. 1 to 6, the rearward pedal portion 4 is installed in the vehicle body 100. The rearward pedal portion 4 may be installed on the vehicle body 100 so as to be rotatable about the pedal rotation shaft 110. Accordingly, the rearward pedal portion 4 can be rotated around the pedal rotational shaft 110 according to the operation of the operator.

The rearward pedal portion 4 may be disposed at a position spaced apart from the forward pedal portion 3 with respect to the left-right direction (X-axis direction). The rearward pedal portion 4 may have a shape similar to that of the forward pedal portion 3.

Referring to FIGS. 1 to 5, the reverse pedal portion 4 may include a reverse pedal plate 41.

The backward pedal plate 41 is a base for the operator to operate the backward pedal portion 4. [ Referring to FIG. 4, when the operator depresses the rear pedal plate 41, the backward pedal portion 4 can be rotated in the clockwise direction (CW arrow direction) about the pedal rotational shaft 110. On the contrary, if the operator does not step on the backward pedal plate 41, the backward pedal portion 4 can rotate in the counterclockwise direction (CCW arrow direction) about the pedal rotational shaft 110 by the restoring force. The rearward pedal plate 41 may be installed near a passenger seat for an operator to ride on the vehicle body 100. The rearward pedal plate 41 may be installed at a position spaced from the interlocking portion 7 along the left-right direction (X-axis direction).

3 to 6, the backward pedal portion 4 may include a backward slant member 42.

The backward slant member 42 is formed to be inclined in the outward direction (the direction of the arrow ED) as it extends forward (in the arrow direction of the FD). The rearward slant member 42 may be positioned rearward (in the direction of the arrow BD) with respect to the rearward pedal plate 41 and may be connected to the rearward pedal plate 41. The rearward slant member 42 is formed to be inclined in the outward direction (the arrow direction of the arrow) as it extends forward (in the arrow direction of the FD), so that the more the portion disposed in the forward direction (the arrow direction of the FD) (In the direction of the arrow ED). Therefore, the backward pedal plate 41 may be disposed at a position spaced apart from the interlocking portion 7 in the outward direction (direction of the arrow ED) through the backward slant member 42.

Accordingly, the agricultural working vehicle 1 according to the present invention is configured such that the linkage 7 from which the power unit 2, the forward link unit 5, the backward link unit 6, The plate 41 is spaced apart in the outward direction (the direction of the arrow ED), thereby further reducing the number of components provided in the vicinity of the interlocking portion 7. [ Therefore, the agricultural working vehicle 1 according to the present invention can prevent a collision with other equipment in the vicinity of the interlocking part 7 during the movement of the backward pedal part 4 by the operator. In addition, the agricultural work vehicle 1 according to the present invention not only increases the ease of maintenance work due to an increase in the free space for the maintenance work, but also can prevent a safety accident that may occur to the operator.

The forward reclining member 42 may be inclined at a greater inclination angle than the forward reclining member 32. The inclination angle refers to an angle of each of the forward slant member 32 and the backward slant member 42 in the outward direction (the direction of the arrow ED) with respect to the forward direction (the direction of the arrow FD). The forward reclining member 42 and the forward reclining member 32 have a larger inclination angle than the forward reclining member 32 so that the forward reclining member 42 and the forward reclining member 32 are inclined forward The distance distanced with respect to the left-right direction (X-axis direction) can be increased. Therefore, the distance that the forward pedal plate 31 and the backward pedal plate 41 are spaced from each other in the left-right direction (X-axis direction) is a distance between the forward link portion 5 and the backward link portion 6 in the left- (In the X-axis direction).

Accordingly, the agricultural working vehicle 1 according to the present invention is realized such that the forward pedal plate 31 and the backward pedal plate 41 are spaced apart from each other by a sufficient distance, The number of cases where both pedal plates are stepped on simultaneously during the step of pressing the pedal plate 41 is reduced. Therefore, the agricultural working vehicle 1 according to the present invention can prevent malfunctions and breakage of the equipment that can be caused by the operator simultaneously pressing both pedal plates.

The backward slant member 42 can revolve around the pedal rotation shaft 110 as an operator presses the backward pedal plate 41. The rearward slant member 42 may be formed in the form of a bar but is not limited thereto and may be formed in any other shape as long as it connects the rearward pedal plate 41 and the pedal rotation shaft 110.

Here, the agricultural working vehicle 1 according to the present invention may include various embodiments according to the manner in which the backward pedal portion 4 is coupled to the back link portion 6. [ Hereinafter, an embodiment of the manner in which the forward pedal portion 4 is coupled to the backward link portion 6 in the agricultural working vehicle 1 according to the present invention will be described in detail with reference to the accompanying drawings.

≪ Embodiment 1 >

Referring to FIGS. 5 and 6, the rearward pedal portion 4 may include a backward spacing member 43.

The rearward spacing member 43 is spaced from the forward pedal portion 3 in the left-right direction (X-axis direction). The backward spacing member 43 may separate the back link portion 6 from the forward pedal portion 3 with respect to the left-right direction (X-axis direction). Therefore, the rear link portion 6 can be moved through the rearward spacing member 43 in a different range apart from the range of movement in which the forward pedal portion 3 is moved. Accordingly, the agricultural working vehicle 1 according to the present invention is configured such that, in the course of moving the back link portion 6 and the forward pedal portion 3 together, the forward link portion 6 and the forward pedal portion 3 Can be prevented from colliding with each other. Therefore, the agricultural working vehicle 1 according to the present invention can prevent breakage, failure, and the like that may occur as a result of collision of the back link portion 6 and the forward pedal portion 3, By increasing it, the operation rate can be further increased.

The backward separation member 43 may be integrally formed with the backward slant member 42. In this case, the rearward spacing member 43 may be formed in the shape of a bar with the backward slant member 42, and may be formed through a bending process. Therefore, the rear work space (43) can be formed through a simple process and structure without having a separate structure, so that the rear work space (43) Thereby further reducing the production cost.

The backward spacing member 43 may be positioned rearward (in the direction of the arrow BD) with respect to the backward slant member 42. The backward spacing member 43 may have a curved surface such that the center of curvature thereof is located in the inner direction (ID arrow direction) with respect to the backward slant member 42. The rearward spacing member 43 can rotate about the pedal rotation shaft 110 as an operator presses the backward pedal plate 41.

≪ Embodiment 2 >

7, the reverse pedal portion 4 may be directly coupled to the reverse link portion 6 or may be connected to the reverse link portion 6 through the pedal shaft. Accordingly, the agricultural working vehicle 1 according to the present invention can omit a separate manufacturing process for forming the backward spacing member 43 in the backward pedal portion 4, And the production time can be shortened.

Referring to FIGS. 6 to 17, the forward link portion 5 connects the forward pedal portion 3 and the power portion 2. The forward link portion 5 may be connected to the forward pedal portion 3 and the interlocking portion 7, respectively. The forward link portion 5 may serve as a link to move the interlocking portion 7 as the forward pedal portion 3 is moved.

Referring to FIGS. 6 to 17, the forward link portion 5 may include a forward rotation mechanism 51.

The forward rotation mechanism 51 is connected to the forward pedal portion 3 so as to be rotatable about the pedal rotation shaft 110. The forward rotation mechanism 51 can rotate about the pedal rotation axis 110 as the forward pedal portion 3 rotates about the pedal rotation axis 110. [ 3, when the forward pedal portion 3 rotates in the clockwise direction (CW-arrow direction) about the pedal rotation shaft 110, the forward rotation mechanism 51 rotates the pedal- (CW arrow direction) with respect to the base 110 as shown in FIG. When the forward pedal portion 3 rotates in the counterclockwise direction (CCW arrow direction) about the pedal rotation shaft 110, the forward rotation mechanism 51 rotates the pedal rotation shaft 110 about the counterclockwise Direction (CCW arrow direction).

The forward rotation mechanism 51 may be installed at a position spaced apart from the interlocking portion 7 in the backward direction (BD arrow direction). Therefore, the forward rotation mechanism 51 can increase the distance in which the forward pedal portion 3 and the linkage portion 7 are connected to each other in the backward direction (BD arrow direction). Therefore, even when the forward rotation mechanism 51 rotates at a relatively large angle, the distance by which the interlocked portion 7 is moved can be relatively reduced as the forward rotation mechanism 51 rotates. Accordingly, the agricultural working vehicle 1 according to the present invention prevents the interlocking portion 7 from being moved at an excessively large distance in comparison with the degree that the operator steps on the forwarding pedal portion 3, 3) can be further increased.

The forward rotation mechanism 51 may be installed on the forward pedal portion 3 through a coupling member such as a bolt and a nut. The forward rotation mechanism (51) may be formed integrally with the forward pedal portion (3). The forward rotation mechanism 51 may be formed in a substantially plate shape in the longitudinal direction, but is not limited thereto. The forward rotation mechanism 51 may be formed in a different shape as long as the forward pedal portion 3 can be moved together have. The forward rotation mechanism 51 may be disposed at a position spaced apart from the backward pedal portion 4 with respect to the left-right direction (X-axis direction) through the advance-spacing member 33.

Referring to FIG. 8, the forward rotation mechanism 51 may include a forward installation member 511.

The forward mounting member 511 is for the forward rotation mechanism 51 to be connected to the forward pedal portion 3. The forward rotation mechanism 51 may be connected to the forward pedal portion 3 through the forward installation member 511. The forward mounting member 511 may extend along the front-rear direction (Y-axis direction) to increase the area provided on the forward pedal portion 3. The front-rear direction (Y-axis direction) is a direction perpendicular to the left-right direction (X-axis direction) in a direction parallel to the front (FD arrow direction) and the rear direction (BD arrow direction). Accordingly, the agricultural working vehicle 1 according to the present invention is implemented to further increase the coupling force between the forward rotation mechanism 51 and the forward pedal portion 3 with respect to the front-rear direction (Y-axis direction) do. Accordingly, in the agricultural working vehicle 1 according to the present invention, as the forward pedal portion 3 rotates about the pedal rotation axis 110, the forward rotation mechanism 51 rotates about the pedal rotation axis 110 The stability against the rotating process can be further increased.

Referring to FIG. 8, the forward rotation mechanism 51 may include a forward rotation member 512.

The forward rotation member 512 is coupled to the forward mounting member 511. The forward rotation member 512 may rotate about the pedal rotation axis 110 as the forward movement member 511 rotates about the pedal rotation axis 110. [ The forward rotation member 512 may be integrally formed with the forward mounting member 511. The forward rotation member 512 may be formed in a substantially rectangular plate shape, but is not limited thereto. The forward rotation member 512 may be formed in a different shape as long as it is rotatable about the pedal rotation axis 110 together with the forward installation member 511 As shown in FIG.

6 to 17, the forward link portion 5 may include an advance transmission mechanism 52. [

The forward transmission mechanism 52 is connected to the forward rotation mechanism 51 and the interlocking portion 7, respectively. One end of the forward transmission mechanism 52 may be connected to the forward rotation member 512 and the other end thereof may be connected to the interlocking portion 7. The forward transmission mechanism 52 connects the forward rotation mechanism 51 and the interlocked portion 7 so that the interlocked portion 7 is moved as the forward rotation mechanism 51 rotates, 7 can be moved so that the forward rotation mechanism 51 can rotate.

10, when the forward rotation mechanism 51 rotates in the clockwise direction (CW arrow direction) with respect to the pedal rotation shaft 110, the forward transmission mechanism 52 transmits the forward rotation mechanism 51) so that the interlocking portion 7 can be pushed forward (in the arrow direction of the FD). Accordingly, the interlocking portion 7 can be moved to rotate in the counterclockwise direction (CCW arrow direction) around the power shaft 21. On the other hand, when the interlocking portion 7 is rotated in the clockwise direction (CW arrow direction) about the power shaft 21, the forward transmission mechanism 52 is moved backward (BD arrow) by the interlocking portion 7, And the forward rotation mechanism 51 can be pushed backward (in the direction of the BD arrow). Accordingly, the forward rotation mechanism 51 can rotate in the counterclockwise direction (CCW arrow direction) with the pedal rotation shaft 110 as the center.

9 to 11, the forward transmission mechanism 52 may include a forward left and right member 521, a forward and downward member 522, and a forward and backward member 523.

The forward left and right members 521 are formed to extend along the left-right direction (X-axis direction). The forward rotation mechanism 51 may be spaced from the interlocking portion 7 with respect to the left-right direction (X-axis direction) through the forward left and right members 521. Accordingly, the agricultural working vehicle 1 according to the present invention is embodied such that the forward rotation mechanism 51 rotates at a position spaced apart in the left-right direction (X-axis direction) from the mechanism in the vicinity of the interlocking portion 7. Therefore, when the forward rotation mechanism 51 rotates, it is prevented from colliding with the tool near the interlocking portion 7, so that the failure, damage, and the like can be reduced, and the cycle for the maintenance work can be further increased .

The forward upper and lower members 522 are formed to be inclined along the vertical direction (Z-axis direction) as they extend forward (in the arrow direction of the FD). The vertical direction (Z-axis direction) is a direction perpendicular to the left-right direction (X-axis direction) and the front-rear direction (Y-axis direction). The forward rotation mechanism 51 may be spaced from the interlocking portion 7 with respect to the up and down direction (Z-axis direction) through the forward and downward member 522. [ Accordingly, the agricultural working vehicle 1 according to the present invention is embodied such that the forward rotation mechanism 51 rotates at a position spaced apart in the vertical direction (Z-axis direction) from the mechanism in the vicinity of the interlocking portion 7. [ Therefore, it is possible to prevent the collision of the forward rotation mechanism 51 with the equipment in the vicinity of the interlocking portion 7 during the rotation of the forward rotation mechanism 51, thereby further increasing the cycle time for maintenance work due to failure, breakage, or the like.

The forward and backward members 523 are formed extending in the front-rear direction (Y-axis direction). The forward rotation mechanism 51 can be spaced from the interlocking portion 7 with respect to the front-rear direction (Y-axis direction) through the forward / backward member 523. Accordingly, the agricultural working vehicle 1 according to the present invention is embodied such that the forward rotation mechanism 51 rotates at a position spaced apart in the vertical direction (Z-axis direction) from the mechanism in the vicinity of the interlocking portion 7. [ Therefore, it is possible to prevent the collision of the forward rotation mechanism 51 with the equipment in the vicinity of the interlocking portion 7 during the rotation of the forward rotation mechanism 51, thereby further increasing the cycle time for maintenance work due to failure, breakage, or the like.

The forward left and right members 521, the forward and downward members 522, and the forward and backward members 523 may be integrally formed. In this case, the forward left and right member 521, the forward and downward members 522, and the forward and backward members 523 may be formed by bending one rod-shaped material. The forward left and right member 521, the forward and downward members 522, and the forward and backward members 523 are formed so as to appropriately vary positions and lengths arranged to avoid the equipment installed on the vehicle body 100, .

6 to 17, the reverse link portion 6 connects the forward pedal portion 4 and the power portion 2. [ To this end, the back link portion 6 may be connected to the backward pedal portion 4 and the interlocking portion 7, respectively. The reverse link portion 6 may serve as a link to move the interlocking portion 7 as the forward pedal portion 4 is moved.

6 to 17, the reverse link portion 6 may include a reverse rotation mechanism 61. [

The reverse rotation mechanism 61 is rotatably connected to the rearward pedal portion 4 about the pedal rotation shaft 110. The backward rotation mechanism 61 can rotate around the pedal rotation shaft 110 as the scraping backward pedal portion 4 rotates about the pedal rotation shaft 110. 12, when the backward pedal portion 4 is rotated in the clockwise direction (CW arrow direction) about the pedal rotation shaft 110, the backward rotation mechanism 61 causes the pedal rotation shaft 110 to rotate clockwise (CW arrow direction) with respect to the base 110 as shown in FIG. When the reverse pedal portion 4 is rotated in the counterclockwise direction (CCW arrow direction) about the pedal rotation shaft 110, the reverse rotation mechanism 61 is rotated counterclockwise about the pedal rotation shaft 110, Direction (CCW arrow direction).

The backward rotation mechanism 61 may be installed at a position spaced apart from the interlocking portion 7 in the backward direction (BD arrow direction). Therefore, the backward rotation mechanism 61 can increase the distance at which the backward pedal portion 4 and the interlocking portion 7 are connected to the backward direction (BD arrow direction). Therefore, even when the reverse rotation mechanism 61 rotates at a relatively large angle, the distance by which the interlocked portion 7 is moved can be relatively reduced as the reverse rotation mechanism 61 rotates. Accordingly, the agricultural working vehicle 1 according to the present invention prevents the interlocking portion 7 from being moved too far by the distance compared to the degree of the operator stepping on the backward pedal portion 4, 4) can be further increased.

The backward rotation mechanism 61 may be installed on the backward pedal portion 6 through a coupling member such as a bolt and a nut. The backward rotation mechanism (61) may be formed integrally with the backward pedal portion (4). The backward rotation mechanism 61 may be formed in a substantially plate shape in the longitudinal direction, but is not limited thereto. The backward rotation mechanism 61 may be formed in a different shape as long as the backward pedal portion 4 can be moved together have. The backward rotation mechanism 61 may be disposed at a position spaced apart from the forward pedal portion 3 with respect to the left-right direction (X-axis direction) through the rearward spacing member 43. The distance by which the reverse rotation mechanism 61 is spaced apart from the forward rotation mechanism 51 in the left-right direction (X-axis direction) is determined by the distance from the forward pedal plate 31 to the left- Direction). ≪ / RTI > For this, the backward slanting member 42 may be inclined at a greater inclination angle than the forward slanting member 32.

Referring to FIG. 12, the reverse rotation mechanism 61 may include a reverse installation member 611.

The reverse mounting member 611 is for the reverse rotation mechanism 61 to be installed in the reverse pedal portion 4. The backward rotation mechanism 61 may be installed on the backward pedal portion 4 through the backward installation member 611. The backward mounting member 611 may extend along the front-rear direction (Y-axis direction) to increase the area of the backward pedal portion 4. Accordingly, the agricultural working vehicle 1 according to the present invention is implemented so as to further increase the coupling force between the reverse rotation mechanism 61 and the reverse pedal portion 4 with respect to the front-rear direction (Y-axis direction) do. Therefore, in the agricultural working vehicle 1 according to the present invention, as the forward pedal portion 4 rotates about the pedal rotational axis 110, the backward rotational mechanism 61 rotates about the pedal rotational axis 110 The stability against the rotating process can be further increased.

Referring to FIG. 12, the reverse rotation mechanism 61 may include a reverse rotation member 612.

The backward rotation member 612 is coupled to the backward installation member 611. The reverse rotation member 612 may rotate around the pedal rotation axis 110 as the reverse installation member 611 rotates about the pedal rotation axis 110. The reverse rotation member 612 may be integrally formed with the reverse mounting member 611. The rear rotation member 612 may be formed in a substantially rectangular plate shape, but is not limited thereto. The rear rotation member 612 may be formed in any other shape as long as it is rotatable about the pedal rotation shaft 110 together with the backward installation member 611 As shown in FIG.

The reverse rotation member 612 and the forward rotation member 512 may extend in different directions with respect to the pedal rotation shaft 110. For example, the forward rotation member 512 may be formed so as to extend in the upward direction (UD arrow direction) so that one side of the forward transmission mechanism 52 is positioned upward (UD arrow direction) with respect to the pedal rotation shaft 110 . The reverse rotation member 612 may extend downward (in the direction of the arrow DD) such that one side of the reverse transmission mechanism 62 is positioned downward (in the direction of the arrow DD) with respect to the pedal rotation shaft 110 .

12 to 17, the back link portion 6 may include a backward transmission mechanism 62. As shown in FIG.

The reverse transmission mechanism (62) is connected to the reverse rotation mechanism (61) and the interlocking section (7), respectively. One end of the reverse transmission mechanism 62 may be connected to the forward rotation member 512 and the other end thereof may be connected to the interlocking portion 7. The backward transmission mechanism 62 connects the backward rotation mechanism 61 and the interlocking section 7 so that the interlocking section 7 is moved as the backward rotation mechanism 61 rotates, 7 are moved, the reverse rotation mechanism 61 can function to rotate.

14, when the backward rotation mechanism 61 rotates in the clockwise direction (CW arrow direction) about the pedal rotation shaft 110, the backward transmission mechanism 62 is rotated by the backward rotation mechanism 61) to pull the interlocking portion 7 in the backward direction (BD arrow direction). Accordingly, the interlocking portion 7 can be moved to rotate in the clockwise direction (CW-arrow direction) about the power shaft 21. When the interlocking portion 7 rotates counterclockwise (in the direction of the arrow CW) about the power shaft 21, the reverse transmission mechanism 62 is moved forward by the interlocking portion 7 (The direction of the arrow of the FD) by pulling the backward rotation mechanism 61 in the forward direction (arrow direction). Accordingly, the reverse rotation mechanism 61 can rotate in the counterclockwise direction (CCW arrow direction) around the pedal rotation shaft 110. [

13 to 15, the reverse transmission mechanism 62 may include a reverse left and right member 621, a reverse upper and lower member 622, and a reverse front and rear member 623.

The rear left and right members 621 are formed to extend along the left-right direction (X-axis direction). The backward rotation mechanism 61 may be spaced from the interlocking portion 7 with respect to the left-right direction (X-axis direction) through the rear left and right members 621. Accordingly, the agricultural working vehicle 1 according to the present invention is embodied such that the reverse rotation mechanism 61 is rotated at a position spaced apart in the left-right direction (X-axis direction) from the mechanism in the vicinity of the interlocking portion 7. Therefore, when the reverse rotation mechanism 61 is rotated, it is possible to prevent a collision with an apparatus in the vicinity of the interlocking portion 7, thereby reducing a failure, damage, and the like, .

The rearward upper and lower members 622 are formed to be inclined along the vertical direction (Z-axis direction) as they extend forward (in the arrow direction of the FD). (X-axis direction) and the front-rear direction (Y-axis direction) in a direction parallel to the upward direction (UD arrow direction) and the downward direction It is one direction. The backward rotation mechanism 61 may be spaced from the interlocking portion 7 with respect to the vertical direction (Z-axis direction) through the reverse upper and lower members 622. Accordingly, the agricultural working vehicle 1 according to the present invention is implemented such that the backward rotation mechanism 61 is rotated at a position spaced apart from the mechanism in the vicinity of the linkage portion 7 in the up-and-down direction (Z-axis direction). Therefore, when the reverse rotation mechanism 61 is rotated, it is possible to prevent a collision with an apparatus in the vicinity of the interlocking portion 7, thereby reducing a failure, damage, and the like, .

The backward / forward member 623 is formed to extend along the front-back direction (Y-axis direction). The backward rotation mechanism 61 may be spaced apart from the interlocking portion 7 with respect to the forward and backward directions (Y-axis direction) through the forward / backward member 623. Accordingly, the agricultural working vehicle 1 according to the present invention is implemented such that the backward rotation mechanism 61 is rotated at a position spaced apart from the mechanism in the vicinity of the linkage portion 7 in the up-and-down direction (Z-axis direction). Therefore, when the reverse rotation mechanism 61 is rotated, it is possible to prevent a collision with an apparatus in the vicinity of the interlocking portion 7, thereby reducing a failure, damage, and the like, .

The reverse left and right member 621, the reverse upper and lower members 622, and the forward and backward members 623 may be integrally formed. In this case, the reverse left and right member 621, the reverse upper and lower member 622, and the reverse front and rear member 623 may be formed by bending one rod-shaped material. The rear left and right member 621, the reverse upper and lower members 622 and 622 are formed so as to appropriately vary the positions and lengths of the rear left and right members 621, .

1 to 25, the linking portion 7 is connected to the forward link portion 5 and the backward link portion 6. The linkage portion 7 can be moved as the forward link portion 5 is moved. The interlocking portion 7 can be moved as the reverse link portion 6 is moved. The interlocking part (7) may be connected to the power unit (2). Therefore, when the forward link portion 5 and the backward link portion 6 are moved as the forward pedal portion 3 and the backward pedal portion 4 are moved, (2). The linking portion 7 can interlock the forward link portion 5 and the backward link portion 6 so that the forward pedal portion 3 and the backward pedal portion 4 are moved in directions opposite to each other . Therefore, the agricultural working vehicle 1 according to the present invention can achieve the following operational effects.

The agricultural working vehicle 1 according to the present invention is structured such that the power unit 2, the forward pedal unit 3 and the backward pedal unit 4 are interlocked with each other by a link connection structure other than a cam gear structure. Accordingly, the agricultural working vehicle 1 according to the present invention is suitable for the case where the structure for interlocking the power section 2, the forward pedal section 3, and the backward pedal section 4 is realized by a cam gear structure , It is possible to reduce the number of devices having complex shapes to be processed. Therefore, the agricultural working vehicle 1 according to the present invention takes time to process the mechanisms for interlocking the power section 2, the forward pedal section 3, and the backward pedal section 4, And the like.

The interlocking portion 7 may be installed to be directly connected to the power shaft 21. Accordingly, the agricultural working vehicle 1 according to the present invention is configured such that the interlocking portion 7 and the power shaft 21 are connected to the power shaft 21 without a separate structure for connecting the interlocking portion 7 and the power shaft 21 to each other. And can be implemented in a simple structure. Therefore, the agricultural working vehicle 1 according to the present invention not only can further increase the stability in the case of operating the power shaft 21 through the interlocking portion 7, And can contribute to lower maintenance costs.

16 and 17, the linking portion 7 functions to operate the power portion 2 and the function of moving the forward pedal portion 3 and the backward pedal portion 4 in opposite directions The process of simultaneously performing the functions is described in detail.

When the operator steps on the forward pedal plate 31 to move the vehicle body 100 forward (in the arrow direction of the FD), the followings are as follows.

First, the operator can transmit the driving force to the forward pedal plate 31 by pressing the forward pedal plate 31. Accordingly, the forward pedal portion 3 can rotate in the clockwise direction (CW arrow direction) about the pedal rotation shaft 110. [

Next, the forward pedal portion 3 can transmit the driving force to the forward rotation mechanism 51 while rotating in the clockwise direction (CW arrow direction) about the pedal rotation shaft 110. [ Accordingly, the forward rotation mechanism 51 can rotate in the clockwise direction (CW arrow direction) about the pedal rotation shaft 110. [

Next, the forward rotation mechanism 51 rotates about the pedal rotation shaft 110 in the clockwise direction (CW arrow direction), and transmits the driving force to the forward transmission mechanism 52, (In the arrow direction of the FD). Accordingly, the forward transmission mechanism 52 can be moved forward (in the arrow direction of the FD).

Next, the forward transmission mechanism 52 is moved in the forward direction (the direction of the arrow of the FD) to transmit the driving force to the interlocking portion 7 so as to push the interlocking portion 7 forward have. Accordingly, the interlocking portion 7 can rotate in the counterclockwise direction (CCW arrow direction) about the power shaft 21.

Next, the interlocking portion 7 can operate the power unit 2 by rotating in the counterclockwise direction (CCW arrow direction) about the power shaft 21. Accordingly, the power section 2 can generate power for moving the vehicle body 100 forward (in the arrow direction of the FD).

The interlocking portion 7 rotates about the power shaft 21 in the counterclockwise direction (CCW arrow direction) and transmits the driving force to the reverse transmission mechanism 62, (In the arrow direction of the FD). Accordingly, the backward transmission mechanism 62 can be moved forward (in the arrow direction of the FD).

Next, the backward transmission mechanism 62 is moved in the forward direction (the direction of the arrow FD), and transmits the driving force to the backward rotation mechanism 61 to pull the backward rotation mechanism 61 forward . Accordingly, the reverse rotation mechanism 61 can rotate in the counterclockwise direction (CCW arrow direction) around the pedal rotation shaft 110. [

Next, the reverse rotation mechanism 61 can transmit the driving force to the reverse pedal portion 4 while rotating in the counterclockwise direction (CCW arrow direction) with the pedal rotation shaft 110 as the center. Accordingly, the reverse pedal portion 4 can be rotated in the counterclockwise direction (CCW arrow direction) around the pedal rotation shaft 110. [ Through the above process, the forward pedal portion 3 and the backward pedal portion 4 can be moved in directions opposite to each other.

When the operator steps on the rear pedal plate 41 to move the vehicle body 100 rearward (in the direction of the arrow BD), the followings are as follows.

First, the operator can transmit the driving force to the backward pedal plate 41 by pressing the backward pedal plate 41. Accordingly, the rearward pedal portion 4 can be rotated in the clockwise direction (CW-arrow direction) about the pedal rotation shaft 110.

Next, the reverse pedal portion 4 can transmit the driving force to the reverse rotation mechanism 61 while rotating in the clockwise direction (CW arrow direction) about the pedal rotation shaft 110. Accordingly, the reverse rotation mechanism 61 can rotate in the clockwise direction (CW arrow direction) about the pedal rotation shaft 110. [

Next, the reverse rotation mechanism 61 rotates about the pedal rotation shaft 110 in the clockwise direction (CW arrow direction) and transmits the driving force to the reverse transmission mechanism 62, (BD arrow direction). Accordingly, the backward transmission mechanism 62 can be moved in the backward direction (BD arrow direction).

Next, the backward transmission mechanism 62 is moved in the backward direction (BD arrow direction), and the driving force is transmitted to the interlocking portion 7 to pull the interlocking portion 7 backward (in the direction of the BD arrow) . Accordingly, the interlocking portion 7 can rotate in the clockwise direction (CW-arrow direction) about the power shaft 21.

Next, the interlocking portion 7 can be operated in the clockwise direction (CW-arrow direction) about the power shaft 21 to operate the power unit 2. [ Accordingly, the power unit 2 can generate power for moving the vehicle body 100 rearward (in the direction of the arrow BD).

The interlocking portion 7 rotates in the counterclockwise direction (CCW arrow direction) about the power shaft 21 and transmits the driving force to the forward transmission mechanism 52 to transmit the forward transmission mechanism 52, (BD arrow direction). Accordingly, the forward transmission mechanism 52 can be moved rearward (BD arrow direction).

Next, the forward transmission mechanism 52 is moved in the rear direction (BD arrow direction), and transmits the driving force to the forward rotation mechanism 51 to push the forward rotation mechanism 51 backward (BD arrow direction) You can. Accordingly, the forward rotation mechanism 51 can rotate in the counterclockwise direction (CCW arrow direction) with the pedal rotation shaft 110 as the center.

Next, the forward rotation mechanism 51 can transmit the driving force to the forward pedal portion 3 while rotating in the counterclockwise direction (CCW arrow direction) about the pedal rotation shaft 110. [ Accordingly, the forward pedal portion 3 can be rotated in the counterclockwise direction (CCW arrow direction) about the pedal rotation shaft 110. [ Through the above process, the forward pedal portion 3 and the backward pedal portion 4 can be moved in directions opposite to each other.

Referring to FIG. 18, the interlocking portion 7 may include a forward interlocking member 71, a reverse interlocking member 72, and a coupling member 73.

The forward link member (71) is connected to the forward link portion (5). The other side of the forward transmission mechanism 52 may be connected to the forward linkage member 71. The forward linkage member 71 may be connected to the power shaft 21. Accordingly, the forward linkage member 71 can connect the forward transmission mechanism 52 and the power shaft 21. [ The forward transmission mechanism 52 may be connected to the forward linkage member 71 downward (in the direction of the arrow DD) with respect to the power shaft 21. The forward linkage member 71 may be formed generally in the form of a plate, but is not limited thereto. The forward linkage member 71 may be formed in any other form as long as it can transmit the driving force by connecting the forward transmission mechanism 52 and the power shaft 21 As shown in FIG.

The reverse link member 6 is connected to the reverse link member 72. And the other side of the reverse transmission mechanism 62 may be connected to the reverse interlocking member 72. The reverse link member 72 may be connected to the power shaft 21. Accordingly, the reverse link member 72 can connect the reverse transmission mechanism 62 and the power shaft 21. The reverse transmission mechanism 62 may be connected to the reverse link member 72 downward (in the direction of the arrow DD) with respect to the power shaft 21. The reverse linkage member 72 may be formed in a generally plate shape, but is not limited thereto. The reverse linkage member 72 may be formed in any other form as long as it can transmit the driving force to each other by connecting the reverse transmission mechanism 62 and the power shaft 21 As shown in FIG. The backward interlocking member 72 may be positioned in the outward direction (the direction of the arrow ED) with respect to the forward interlocking member 71.

The coupling member 73 is coupled to the forward interlocking member 71 and the backward interlocking member 72, respectively. The coupling member 73 may connect the forward interlocking member 71 and the backward interlocking member 72 to each other. The coupling member 73 may extend along the left-right direction (X-axis direction). Accordingly, the forward interlocking member 71 and the backward interlocking member 72 may be spaced apart from each other with respect to the left-right direction (X-axis direction) through the coupling member 73. Accordingly, the agricultural working vehicle 1 according to the present invention can achieve the following operational effects.

First, the agricultural working vehicle 1 according to the present invention is configured such that the forward link portion 5 and the backward link portion 6 are movable at positions separated from each other with respect to the left-right direction (X-axis direction) . Therefore, the agricultural working vehicle 1 according to the present invention prevents the breakage or damage of the forward link portion 5 and the backward link portion 6 as they collide with each other, The operation rate can be increased.

'자 형태로 형성되도록 구현된다. 이에 따라, 본 발명에 따른 농업용 작업차량(1)은 상기 전진연동부재(71) 및 상기 후진연동부재(72)가 직접 결합되어 상기 연동부(7)가 대략적으로 '

'자 형태로 형성되도록 구현된 비교예에 대비할 때, 상기 전진연동부재(71) 및 상기 후진연동부재(72)에 가해지는 힘이 분산되는 정도를 증대시킬 수 있다. 따라서, 본 발명에 따른 농업용 작업차량(1)은 상기 연동부(7)가 작동하는 과정에서 상기 전진연동부재(71) 및 상기 후진연동부재(72)가 상기 이음부재(73)에 대해 뒤틀리는 정도를 감소시키므로, 상기 전진연동부재(71)에 연결된 상기 전진링크부(5)와 상기 후진연동부재(72)에 연결된 상기 후진링크부(6)도 뒤틀리는 정도를 감소시킬 수 있다.Secondly, the agricultural working vehicle 1 according to the present invention is indirectly engaged with the forward linkage member 71 and the backward linkage member 72 through the joint member 73 without being directly engaged with each other, 7) is roughly '

Quot; shape. Accordingly, in the agricultural working vehicle 1 according to the present invention, the forward interlocking member 71 and the backward interlocking member 72 are directly coupled to each other so that the interlocking portion 7 is approximately '

The degree of dispersion of the force applied to the forward interlocking member 71 and the backward interlocking member 72 can be increased. Therefore, in the agricultural working vehicle 1 according to the present invention, the degree to which the forward interlocking member 71 and the backward interlocking member 72 are twisted with respect to the joint member 73 during the operation of the interlocking portion 7, The degree of warping of the forward link portion 5 connected to the forward linkage member 71 and the back link portion 6 connected to the backward linkage member 72 can also be reduced.

Thirdly, in the agricultural working vehicle 1 according to the present invention, when the backward interlocking member 72 is located in the outward direction (ED arrow direction) with respect to the forward interlocking member 71, (In the direction of the arrow mark) with respect to the reverse linking member 72 in the reverse direction. Therefore, in the agricultural working vehicle 1 according to the present invention, since the back link portion 6 is installed between the backward linking member 72 and the forward linking member 71, the backward link portion 6 It is possible to further prevent the collision against the mechanism in the vicinity of the interlocking portion (7).

16 to 18, the coupling member 73 is coupled to the forward linkage member 71 so that the angle formed between the forward linkage member 71 and the forward linkage member 71 is perpendicular to the forward linkage member 71, And can be coupled to the reverse linking member 72 such that the angle formed by the linking member 72 is vertical. Accordingly, the agricultural working vehicle 1 according to the present invention has a comparative example in which the joint member 73 is formed so as to have an acute angle or an obtuse angle with each of the forward linkage member 71 and the backward linkage member 72 The force applied to the forward interlocking member 71 and the backward interlocking member 72 is more dispersed. Therefore, in the agricultural working vehicle 1 according to the present invention, the degree to which the forward interlocking member 71 and the backward interlocking member 72 are twisted with respect to the joint member 73 during the operation of the interlocking portion 7, The forward link portion 5 connected to the forward interlocking member 71 and the backward link portion 6 connected to the backward interlocking member 72 can be further reduced in degree of warping.

The joint member 73, the forward linkage member 71, and the reverse linkage member 72 may be integrally formed. In this case, the joint member 73, the forward linkage member 71, and the reverse linkage member 72 may be formed by bending a single plate. Accordingly, the agricultural working vehicle 1 according to the present invention is configured such that the interlocking portion 7 is formed in a simple structure, so that the interlocking portion 7 functions to operate the power portion 2, It is possible to reduce the loss of the driving force transmitted through the interlocking portion 7 in simultaneously performing the function of moving the reverse portion 3 and the reverse pedal portion 4 in opposite directions. However, the present invention is not limited to this, and the joint member 73 may be formed in the shape of a substantially rectangular plate, but the present invention is not limited thereto, and the forward and backward movement members 71, It may be formed in a different shape.

Referring to Fig. 19, the agricultural working vehicle 1 according to the present invention may include a buffer part 8. Fig.

The cushioning portion 8 provides a buffering force in a direction opposite to the direction in which the forward pedal portion 3 and the backward pedal portion 4 are moved. The cushioning portion 8 may be connected to at least one of the forward pedal portion 3 and the backward pedal portion 4. When the forward pedal portion 3 is moved in the clockwise direction (the direction of the arrow CW) when the advancing pedal portion 3 is connected to the advancing pedal portion 3, (CCW arrow direction). When the forward pedal portion 3 is moved in the counterclockwise direction (CCW arrow direction), the buffer portion 8 can provide a buffering force to the forward pedal portion 3 in the clockwise direction (CW arrow direction) have. Conversely, when the cushioning portion 8 is connected to the reverse pedal portion 4, when the reverse pedal portion 4 is moved in the clockwise direction (CW-arrow direction) The buffering force can be provided in the clockwise direction (CCW arrow direction). The cushioning portion 8 can provide a buffering force to the backward pedal portion 4 in the clockwise direction (CW arrow direction) when the backward pedal portion 4 is moved in the counterclockwise direction have. On the other hand, when the forward pedal portion 3 and the backward pedal portion 4 are positioned at the neutral position, the buffer portion 8 may not be provided with a buffering force.

Accordingly, the agricultural working vehicle 1 according to the present invention can prevent the forward pedal portion 3 and the backward pedal portion 4 from being suddenly moved by the driving force applied to the operator. Therefore, the agricultural working vehicle 1 according to the present invention is moved to the range over the available moving range as the forward pedal portion 3 and the backward pedal portion 4 are suddenly moved, and the forward pedal portion 3, It is possible to prevent the backward pedal portion 4 from being broken or damaged.

19, the buffer portion 8 may include a buffer rotary member 81 and a buffer mechanism 82. [

The buffer rotary member 81 is rotatably installed as the forward pedal portion 3 and the backward pedal portion 4 are moved. The buffer rotary member 81 may be rotatably mounted on the pedal rotation shaft 110. The cushioning rotary member 81 may be connected to at least one of the forward pedal portion 3 and the backward pedal portion 4. Accordingly, the buffer rotary member 81 rotates about the pedal rotation shaft 110 as the forward pedal portion 3 and the backward pedal portion 4 are moved.

The buffer rotary member 81 may be formed to extend downward (in the direction of the arrow DD) from the pedal rotation shaft 110. The cushioning rotary member 81 may be formed integrally with the forward rotation mechanism 51. In this case, the buffer rotating member 81 may be configured to rotate together with the forward rotation mechanism 51 as it rotates. The buffer rotating member 81 may be integrally formed with the backward rotating mechanism 61. In this case, the buffer rotary member 81 may be rotated so that the reverse rotation mechanism 61 is rotated together. The cushioning rotary member 81 may be formed generally in the form of a plate, but it is not limited thereto. The cushioning rotary member 81 may be formed in any other shape as long as it can rotate around the pedal rotation axis 110.

The buffer mechanism 82 is provided on the buffer rotary member 81 to provide a buffering force to the buffer rotary member 81. The buffer mechanism 82 may be installed in each of the buffer rotary member 81 and the vehicle body 100. The buffering mechanism 82 can provide a buffering force in a direction opposite to the direction in which the buffer rotating member 81 rotates as the buffering rotating member 81 rotates. 19, as the forward pedal portion 3 and the backward pedal portion 4 are moved, the buffer rotary member 81 rotates about the pedal rotational shaft 110 in the clockwise direction (CW arrows) The buffering mechanism 82 can provide buffering force to the buffer rotating member 81 in the counterclockwise direction (CCW arrow direction). When the buffer rotary member 81 rotates counterclockwise (CCW arrow direction) about the pedal rotation shaft 110 as the forward pedal portion 3 and the reverse pedal portion 4 are moved , The buffer mechanism 82 can provide a buffering force to the buffer rotating member 81 in the clockwise direction (CW arrow direction).

The buffer mechanism 82 may be positioned downward (DD arrow direction) with respect to the pedal rotation shaft 110. Therefore, the buffer mechanism 82 can be installed on the vehicle body 100 and the buffer rotating member 81 downward (in the direction of the arrow DD) with respect to the pedal rotation shaft 110. Accordingly, the agricultural working vehicle 1 according to the present invention is implemented such that the buffer mechanism 82 provides a buffering force at a position spaced apart from the mechanism near the pedal rotational shaft 110 having a complicated link structure. Therefore, the agricultural working vehicle 1 according to the present invention can prevent the buffering mechanism 82 from colliding with the mechanism in the vicinity of the pedal rotation shaft 110 in the process of providing the buffering force to the buffering rotary member 81, It is possible to prevent the buffer mechanism 82 from being damaged or broken. The agriculture working vehicle 1 according to the present invention can be used in a case where the aging is progressed due to repetitive operation of the buffering mechanism 82, It is possible to perform the maintenance work of the maintenance work more easily.

The buffer mechanism 82 can be increased or decreased in length as the buffer rotary member 81 rotates. In this case, as the length of the buffer mechanism 82 is increased or decreased, a buffering force may be generated in a direction of returning to the original length. The cushioning mechanism 82 is configured such that when the forward pedal portion 3 and the backward pedal portion 4 are in the neutral position, the vehicle body 100 and the buffer rotary member 81 Respectively. In this case, the buffer mechanism 82 may not provide a buffering force to the buffer rotating member 81. The buffer mechanism 82 may be formed to have a spring, but it is not limited thereto. The buffer mechanism 82 may be formed in a different shape so as to provide a buffering force to the buffer rotating member 81. For example, the buffer mechanism 82 may be formed to include a hydraulic cylinder or the like.

20 to 26, the agricultural working vehicle 1 according to the present invention may include the neutral portion 9. [

The neutral portion 9 senses whether the forward pedal portion 3 and the backward pedal portion 4 are located at neutral positions. To this end, the neutral portion 9 includes an operating mechanism 91 that is moved as the forward pedal portion 3 and the backward pedal portion 4 are moved, a moving mechanism 91 that is movably installed in the vehicle body 100, And a sensing mechanism 93 for sensing whether the forward pedal portion 3 and the backward pedal portion 4 are located at neutral positions.

20 to 25, the actuating mechanism 91 is moved as the forward pedal portion 3 and the backward pedal portion 4 are moved. The actuating mechanism 91 moves in conjunction with the forward pedal portion 3 and the backward pedal portion 4 as the forward pedal portion 3 and the backward pedal portion 4 are moved away from the neutral position . The actuating mechanism 91 can be moved in conjunction with the forward pedal portion 3 and the backward pedal portion 4 as the forward pedal portion 3 and the backward pedal portion 4 are moved to the neutral position have. The operating mechanism 91 may be installed to be connected to the power unit 2.

20 to 22, the operating mechanism 91 may be installed in the interlocking portion 7. The operating mechanism 91 can be moved as the interlocking portion 7 rotates about the power shaft 21. Thus, the agricultural working vehicle 1 according to the present invention is characterized in that the interlocking portion 7 functions to operate the power portion 2, the function of the forward pedal portion 3 and the backward pedal portion 4 are opposite to each other Direction as well as the function of operating the neutral portion 9 can be performed at the same time. Therefore, the agricultural working vehicle 1 according to the present invention can further reduce the cost of production and maintenance since the number of the mechanisms to be installed in the vehicle body 100 to perform the functions is further reduced .

The operating mechanism 91 may be installed in at least one of the forward linkage member 71 and the reverse linkage member 72. The operating mechanism 91 may be integrally formed with the interlocking portion 7. The operating mechanism 91 may be disposed in the downward direction (DD arrow direction) with respect to the interlocking portion 7 and the interlocking portion 7.

21 to 25, the actuating mechanism 91 may include a cam member 911, a cam groove 912, and the like.

The cam member 911 rotates about the power shaft 21 as each of the forward pedal portion 3 and the backward pedal portion 4 operates. The cam member 911 may rotate about the power shaft 21 when at least one of the forward pedal portion 3 and the backward pedal portion 4 is moved away from the neutral position. The cam member 911 can rotate around the power shaft 21 and return to the original position when the forward pedal portion 3 and the backward pedal portion 4 are moved to the neutral position. In this case, when the forward pedal portion 3 and the backward pedal portion 4 are moved away from the neutral position and again moved to the neutral position, the cam member 911 is moved to the neutral position by the power shaft 21 In the direction opposite to each other.

The cam groove 912 is for the movement mechanism 92 to be inserted. The cam groove 912 may be formed through the cam member 911. In this case, the cam groove 912 may be formed to be retracted to a certain depth from one surface of the cam member 911 facing the moving mechanism 92. When the forward pedal portion 3 and the backward pedal portion 4 are positioned at the neutral position, the moving mechanism 92 can be inserted into the cam groove 912. Conversely, if any one of the forward pedal portion 3 and the backward pedal portion 4 is displaced from the neutral position, the cam member 911 rotates about the power shaft 21 to rotate the cam groove 912, It is possible to press the moving mechanism 92 inserted in the moving mechanism 92. [ Accordingly, the moving mechanism 92 can be moved.

20 to 26, the moving mechanism 92 is movably installed in the vehicle body 100 so that the moving mechanism 92 is moved as the operating mechanism 91 is moved. When the actuating mechanism 91 is moved as the forward pedal portion 3 and the backward pedal portion 4 are moved, the moving mechanism 92 can be moved as the actuating mechanism 91 is moved . Depending on the moving direction of the moving mechanism 92, the moving mechanism 92 may be in contact with the sensing mechanism 93, and the moving mechanism 92 may not be in contact with the sensing mechanism 93.

Referring to Figs. 20 to 26, the moving mechanism 92 may include a contact member 921. Fig.

The contact member 921 is in contact with the sensing mechanism 93 depending on whether the forward pedal portion 3 and the backward pedal portion 4 are positioned at neutral positions. The contact member 921 may be movably installed in the vehicle body 100. The contact member 921 may contact the sensing mechanism 93 when the forward pedal portion 3 and the backward pedal portion 4 are positioned at neutral positions. The contact member 921 may be spaced from the sensing mechanism 93 when either the forward pedal portion 3 or the backward pedal portion 4 is out of neutral position.

The contact member 921 can be selectively contacted to the sensing mechanism 93 while being moved as the operating mechanism 91 is moved. In this case, the contact member 921 can be moved along the movement path spaced downward (in the direction of the arrow DD) from the interlocking portion 7 as the cam member 911 rotates.

Accordingly, in the agricultural working vehicle 1 according to the present invention, when the other member in the vicinity of the interlocking portion 7 is located apart from the movement path of the contact member 921, when the contact member 921 is moved So as not to collide with other components in the vicinity of the interlocking portion (7). Therefore, the agricultural working vehicle 1 according to the present invention prevents the contact member 921 from being broken or broken by the collision, so that the replacement period of the contact member 921 can be extended to reduce the maintenance cost .

23 to 26, the contact member 921 may include a contact surface 921a.

The contact surface 921a is in contact with the sensing mechanism 93. The contact surface 921a may be one surface of the contact member 921 positioned at a position facing the sensing mechanism 93. The contact member 921 can be sensed by the sensing mechanism 93 by contacting the sensing mechanism 93 through the contact surface 921a. The contact surface 921a may be formed in a planar shape, but it is not limited thereto. The contact surface 921a may be formed in a different shape such as a curved surface if it can be contacted with the sensing mechanism 93.

Referring to Figs. 20 to 25, the moving mechanism 92 may include a moving member 922 and a connecting member 923.

The moving member 922 is installed in the vehicle body 100. The moving member 922 can be installed on the vehicle body 100 so as to be rotatable about the moving shaft 922a. The moving member 922 can rotate in the clockwise direction (CW arrow direction) and the counterclockwise direction (CCW arrow direction) about the moving shaft 922a as the operating mechanism 91 is moved. When the moving member 922 rotates in the clockwise direction (CW arrow direction) about the moving shaft 922a, the contact member 921 can be moved in a direction away from the sensing mechanism 93 . When the moving member 922 rotates in the counterclockwise direction (CCW arrow direction) around the moving shaft 922a, the contact member 921 can be moved in a direction to contact the sensing mechanism 93 have.

The connecting member 923 is installed on the moving member 922 and the contact member 921, respectively. The connecting member 923 may be installed on the moving member 922 at a position spaced apart from the moving shaft 922a. The connecting member 923 can rotate around the moving shaft 922a as the moving member 922 rotates about the moving shaft 922a. In this case, when the moving member 922 rotates in the clockwise direction (CW arrow direction) and the counterclockwise direction (CCW arrow direction) around the moving shaft 922a, the connecting member 923 moves (CW arrow direction) and the counterclockwise direction (CCW arrow direction) with respect to the axis 922a.

The connecting member 923 may be installed on the moving member 922 so as to protrude downward (in the direction indicated by the arrow DD) from the moving member 922. The connecting member 923 is moved from the moving member 922 to the sensing member 93 in such a manner that the contact member 921 contacts the sensing mechanism 93 at a position spaced apart from the interlocking portion 7 in the downward direction And can be installed on the moving member 922 so as to protrude downward (in the direction of the arrow DD). The contact member 921 is moved in the downward direction (in the direction of the arrow DD) from the interlocking portion 7 about the moving shaft 922a in accordance with the movement of the operating mechanism 91 It can rotate along.

Referring to Figs. 20 to 25, the moving mechanism 92 may include a pressing member 924. Fig.

The pressing member 924 is pressed by the cam member 911. The pressing member 924 may be positioned downward (in the direction of the arrow DD) with respect to the cam member 911. [ The pressing member 924 may be installed on the moving member 922 at a position spaced apart from the moving shaft 922a. The pressing member 924 can be urged by the cam member 911 as the cam member 911 rotates and revolved in the direction in which the pressing member 924 is pressed about the moving shaft 922a.

Referring to FIGS. 20 to 26, the neutral portion 9 may include a sensing mechanism 93.

The sensing mechanism 93 senses whether the forward pedal portion 3 and the reverse pedal portion 4 are positioned at neutral positions according to whether the contact member 921 is in contact. When the contact member 921 is in contact with the detection mechanism 93, the forward pedal portion 3 and the backward pedal portion 4 are located at neutral positions. When the contact member 921 is not in contact It is possible to detect that one of the forward pedal portion 3 and the backward pedal portion 4 is out of the neutral position. The agriculture working vehicle 1 according to the present invention is configured such that the forward pedal portion 3 and the backward pedal portion 4 are neutralized by using the sensing mechanism 93 while the power of the power unit 2 is turned off, It is possible to prevent the power unit 2 from starting.

Accordingly, the agricultural working vehicle 1 according to the present invention is configured such that the power section 2 is started when the forward pedal section 3 and the backward pedal section 4 are not positioned at the neutral position It is possible to prevent the vehicle body 100 from being arbitrarily moved even if the operator does not operate it. Therefore, the agricultural working vehicle 1 according to the present invention can prevent the occurrence of safety accidents, thereby further enhancing safety for the operator.

Referring to FIG. 26, the sensing mechanism 93 may include a sensing surface 931.

The sensing surface 931 contacts the contact surface 921a. The sensing mechanism 93 may be disposed such that the sensing surface 931 is positioned at a position where the sensing surface 931 faces the contact surface 921a. The sensing surface 931 may correspond to a portion of the outer surface of the sensing mechanism 93. When the contact surface 921a contacts the sensing surface 931, the sensing mechanism 93 senses that the forward pedal portion 3 and the backward pedal portion 4 are positioned at the neutral position. The sensing surface 931 may be formed in the same shape as the contact surface 921a, but is not limited thereto. The sensing surface 93 may be formed to have a contact surface 921a, But may be formed in other shapes as long as the contact portions 921a can be contacted.

Referring to FIG. 26, the contact surface 921a may be formed to have a larger size than the sensing surface 931. The contact surface 921a may be formed to have a larger area than the sensing surface 931 so that the contact surface 921a may have a larger size than the sensing surface 931. Accordingly, the agricultural working vehicle 1 according to the present invention is implemented so as to increase the contact area that the contact member 921 can contact with the sensing mechanism 93. Therefore, the agricultural working vehicle 1 according to the present invention can alleviate the accuracy of the alignment operation of aligning the positions of the contact surface 921a and the sensing surface 931 for mutual contact, 921) and the detection mechanism 93 can be improved. Even if the sensing mechanism 93 and the contact member 921 are moved within a predetermined range from the initial mounting position due to aging or the like, the contact surface 921a is not detected To be in contact with the surface 931. Accordingly, since the agricultural working vehicle 1 according to the present invention can increase the execution period for the alignment operation for aligning the positions of the contact surface 921a and the sensing surface 931 in order to make contact with each other, .

20 to 25, the neutral portion 9 may include an elastic mechanism 94.

The elastic mechanism (94) is for providing an elastic force to the moving mechanism (92).

When the contact member 921 is separated from the sensing mechanism 93 as the forward pedal portion 3 and the backward pedal portion 4 are displaced from the neutral position, 921 to contact with the sensing mechanism 93. In this case,

Accordingly, in the agricultural working vehicle 1 according to the present invention, when the forward pedal portion 3 and the backward pedal portion 4 are positioned at the neutral position and the contact member 921 contacts the detection mechanism 93 The contact member 921 is kept in contact with the sensing mechanism 93 unless an external force is exerted thereon. Therefore, the agricultural working vehicle 1 according to the present invention can contribute to further improving the safety performance by preventing the malfunction that may occur as the contact member 921 is arbitrarily separated from the sensing mechanism 93.

One side of the elastic mechanism 94 may be provided on the moving member 922 and the other side thereof may be provided on the vehicle body 100. The elastic mechanism 94 may be deformed to contract or extend by rotation of the movable member 922 at its original length, thereby providing an elastic force. A process of contacting the contact member 921 with the sensing mechanism 93 as the elastic mechanism 94 provides an elastic force to the moving member 922 will be described in detail as follows.

When the contact member 921 is spaced apart from the sensing mechanism 93 as the forward pedal portion 3 and the backward pedal portion 4 are displaced from the neutral position, An elastic force due to deformation may occur. For example, the shifting member 922 is moved in the clockwise direction (CW arrow direction) about the shifting shaft 922a as the forward pedal portion 3 and the backward pedal portion 4 are displaced from the neutral position The elastic mechanism 94 can be pulled such that the length of the elastic mechanism 94 is increased.

Next, as the forward pedal portion 3 and the backward pedal portion 4 are positioned at the neutral position, the elastic mechanism 94 elastically urges the moving member 922 in the counterclockwise direction (CCW arrow direction) . For example, the elastic mechanism 94 can be rotated in the counterclockwise direction (CCW arrow direction) about the moving shaft 922a by pulling the moving member 922 while being shortened to an original length. The moving member 922 can transmit the elastic force transmitted from the elastic mechanism 94 to the connecting member 923.

Next, the connecting member 923 receives the elastic force from the moving member 922 and can rotate in the counterclockwise direction (CCW arrow direction) around the moving shaft 922a. Thereafter, the contact member 921 may contact the sensing mechanism 93. Accordingly, the detection mechanism 93 can sense that the forward pedal portion 3 and the backward pedal portion 4 are positioned at the neutral position.

3 and 4, the agricultural working vehicle 1 according to the present invention may include a restricting portion 120.

The restricting portion 120 limits the distance that one of the forward pedal portion 3 and the backward pedal portion 4 can move. The restricting portion 120 may limit the distance that the forward pedal portion 3 can move. In this case, the movable distance of the forward pedal portion 4, which is moved in a direction opposite to the forward pedal portion 3 in conjunction with the forward pedal portion 3, may be limited. The restricting portion 120 may restrict the distance that the forward pedal portion 4 can move. In this case, the movable distance of the forward pedal portion 3, which is moved in a direction opposite to the backward pedal portion 4 in conjunction with the backward pedal portion 4, may be limited. Accordingly, the agricultural working vehicle 1 according to the present invention can achieve the following effects.

First, the agricultural working vehicle 1 according to the present invention is configured to limit the distance that the forward pedal part 3 and the backward pedal part 4 can move through the restricting part 120, It is possible to prevent the rearward pedal portion 3 and the backward pedal portion 4 from moving to an excessively large distance due to an operation of the operator or the like. Therefore, the agricultural working vehicle 1 according to the present invention can contribute to increase the operation rate by reducing the time taken to perform the maintenance as the forward pedal portion 3 and the backward pedal portion 4 are broken or broken down. have.

Secondly, in the agricultural working vehicle 1 according to the present invention, in order to limit the distance that the forward pedal portion 3 and the backward pedal portion 4 can move, the restricting portion 120 moves the forward pedal portion 3 And the rearward pedal portion 4 are configured to limit the movable distance. Therefore, since the agricultural working vehicle 1 according to the present invention requires less space for installing the restricting portion 120, it is possible to further increase the space utilization, and further, the forward pedal portion 3 and / It is possible to secure ease of design for arranging structures, tools, and the like in the vicinity of the rearward pedal portion 4.

The restricting portion 120 may be installed in any one of the forward pedal portion 3 and the backward pedal portion 4. The restricting portion 120 may restrict the distance that the forward pedal portion 3 can move when the forward pedal portion 3 is installed. The restricting portion 120 may limit the distance that the forward pedal portion 3 can move when the forward pedal portion 3 is installed.

3 and 4, the restricting portion 120 may include a supporting member 121, a first engaging member 122, and a second engaging member 123.

The support member 121 is installed to be connected to the vehicle body 100. The support member 121 may be installed in the vehicle body 100. The support member 121 may be installed in an electromagnet (not shown) for providing a magnetic force to the forward pedal portion 3 and the reverse pedal portion 4 so as to be connected to the vehicle body 100 .

The support member 121 may support the first engaging member 122 and the second engaging member 123. When the first engaging member 122 and the second engaging member 123 are moved as the forward pedal portion 3 and the backward pedal portion 4 are moved, So that the engaging member 122 and the second engaging member 123 can be supported. Accordingly, the movable distance of the forward pedal portion 3 and the backward pedal portion 4 can be limited.

The first engaging member 122 is engaged with the support member 121 as it moves downward (in the direction of the arrow DD). When the first engaging member 122 engages with the supporting member 121, the first engaging member 122 is supported by the supporting member 121 and is not moved further downward (in the direction of the arrow DD). The first latching member 122 may be installed in any one of the forward pedal portion 3 and the backward pedal portion 4. 4, the first engaging member 122 engages with the supporting member 121 on the basis of the case where the first engaging member 122 is provided on the backward pedal portion 4 Explain the process in detail.

First, the operator can move the backward pedal portion 4 by depressing the backward pedal plate 41 downward (in the direction of the arrow DD). In this case, the first latching member 122 can be moved downward (in the direction of the arrow DD) together with the backward pedal portion 4.

Next, the first latching member 122 may be moved downward (in the direction indicated by the arrow DD), and then caught by the support member 121. Since the support member 121 is installed to be connected to the vehicle body 100, the first retaining member 122 can be supported. Accordingly, since the first latching member 122 is no longer moved downward (in the direction of the arrow DD), the distance that the backward pedal portion 4 can move downward (in the direction of the arrow DD) can be limited . In this case, since the forward pedal portion 3 is interlocked with the backward pedal portion 4, the distance that the forward pedal portion 3 can be moved upward (UD arrow direction) can be limited.

The first latching member 122 may be disposed above the support member 121 (in the direction of the arrow UD). The first engaging member 122 may be installed on the forward pedal portion 3 when the second engaging member 123 is provided on the forward pedal portion 3. [ The first latching member 122 may be installed on the backward pedal portion 4 when the second latching member 123 is installed on the backward pedal portion 4. [ The first engaging member 122 may be formed to protrude forward from the forward pedal portion 3 or the backward pedal portion 4 in the direction of arrow FD so as to form an engagement with the support member 121 .

The second engaging member 123 is engaged with the support member 121 as it is moved upward (UD arrow direction). When the second engaging member 123 engages with the support member 121, the second engaging member 123 is supported by the support member 121 and is not moved upward (in the direction of the arrow UD). The second latching member 123 may be installed in any one of the forward pedal portion 3 and the backward pedal portion 4. 3, the second engaging member 123 engages with the support member 121 on the basis of the case where the second engaging member 123 is provided on the backward pedal portion 4, This is a detailed description of the process.

First, the operator can move the backward pedal portion 4 upward (UD arrow direction) by pressing the forward pedal plate 31 downward (in the direction of the arrow DD). In this case, the second latching member 123 may be moved upward (UD arrow direction) together with the backward pedal portion 4. [

Next, the second latching member 123 may be moved upward (UD arrow direction) and then caught by the support member 121. Since the support member 121 is installed to be connected to the vehicle body 100, it is possible to maintain the state in which the second engaging member 123 is supported. Therefore, since the second engaging member 123 is no longer moved upward (UD arrow direction), it is possible to limit the distance that the backward pedal portion 4 can move upward (UD arrow direction) . In this case, since the forward pedal portion 3 is interlocked with the backward pedal portion 4, the distance that the forward pedal portion 3 can be moved downward (in the direction of the arrow DD) can be limited.

The second latching member 123 may be installed to be positioned downward (in the direction of the arrow DD) with respect to the support member 121. The second engaging member 123 may be installed on the forward pedal portion 3 when the first engaging member 122 is provided on the forward pedal portion 3. [ The second latching member 123 may be installed on the backward pedal portion 4 when the first latching member 122 is installed on the backward pedal portion 4. [ The second latching member 123 may be formed to protrude forward from the forward pedal portion 3 or the backward pedal portion 4 in the direction of arrow FD so as to form an engagement with the support member 121 .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Will be clear to those who have knowledge of.

1: Agricultural working vehicle 2: Power unit
3: forward pedal portion 4: reverse pedal portion
5: forward link portion 6: reverse link portion
7: interlocking part 8: buffering part
9: neutral part 21: power shaft
31: forward pedal plate 32: forward slope member
33: forward displacement member 41: reverse pedal plate
42: Reverse slope member 43: Reverse displacement member
51: forward rotation mechanism 52: forward transmission mechanism
61: Reverse rotation mechanism 62: Reverse transmission mechanism
71: forward linkage member 72: reverse linkage member
73: joint member 81: buffering rotary member
82: buffer mechanism 91: operating mechanism
92: movement mechanism 93: sensing mechanism
94: elastic mechanism 100:
110: pedal rotating shaft 120:
121: support member 122: first engaging member
123: second engaging member 511: forward engaging member
512: forward rotation member 521: forward left and right member
522: forward upper and lower members 523: forward and backward members
611: Reverse installation member 612: Reverse rotation member
621: Reverse left and right member 622:
623: Reverse back and forth member 911: Cam member
921: contact member 922: moving member
923: connecting member 931: sensing face

Claims (10)

A power section (2) for generating power for moving the vehicle body (100);
A forward pedal portion 3 provided on the vehicle body 100;
A rearward pedal portion (4) provided on the vehicle body (100);
A forward link portion (5) connecting the forward pedal portion (3) and the power portion (2);
A reverse link portion (6) connecting the forward pedal portion (4) and the power portion (2); And
The forward link portion 5 and the backward link portion 6 are connected to each other to move the forward pedal portion 3 and the backward pedal portion 4 in opposite directions and the forward pedal portion 3 And an interlocking portion (7) for operating the power portion (2) as the forward pedal portion (4) is moved,
The interlocking portion 7 includes a forward linkage member 71 connected to the forward link portion 5, a forward linkage member 72 connected to the forward linkage portion 6 and a forward linkage member 72 connected to the forward linkage member 71, And a coupling member (73) coupled to each of the interlocking members (72)
The joint member 73 is formed so as to extend along the left-right direction (X-axis direction) such that the forward link portion 5 and the backward link portion 6 are spaced from each other with respect to the left-right direction Features agricultural work vehicles. The method according to claim 1,
The forward link portion 5 includes a forward rotation mechanism 51 and a forward rotation mechanism 51 connected to the forward pedal portion 3 so as to be rotatable about the pedal rotation shaft 110, And an advancement transmission mechanism (52) connected to each of them,
The reverse link portion 6 includes a reverse rotation mechanism 61 connected to the reverse pedal portion 4 so as to be rotatable about the pedal rotation shaft 110 and a reverse rotation mechanism 61 connected to the reverse rotation mechanism 61 and the interlocking portion 7 And a reverse transmission mechanism (62) connected to each of the first and second drive wheels. The method according to claim 1,
The power section 2 includes a power shaft 21 that rotates as the forward pedal section 3 and the backward pedal section 4 are moved,
Wherein the interlocking portion (7) is directly connected to the power shaft (21). 3. The method of claim 2,
The forward rotation mechanism (51) includes a forward rotation member (512) connected to one side of the forward transmission mechanism (52)
The reverse rotation mechanism (61) includes a reverse rotation member (612) connected to one side of the reverse transmission mechanism (62)
Wherein the forward rotation member (512) and the backward rotation member (612) are formed extending in different directions with respect to the pedal rotation shaft (110). The method according to claim 1,
The forward link portion 5 includes a forward rotation mechanism 51 provided to the forward pedal portion 3 so as to be rotatable about the pedal rotation shaft 110 and a forward rotation mechanism 51 for rotating the forward rotation mechanism 51 and the interlocking portion 7, And an advance transmission mechanism (52)
The forward transmission mechanism 52 includes forward and reverse rotation mechanisms 51 extending in the left-right direction (X-axis direction) such that the forward rotation mechanism 51 is spaced from the interlocking portion 7 with respect to the left- (Z-axis direction) as it extends forward (in the arrow direction of the FD) so that the forward rotation mechanism 51 is spaced from the linkage portion 7 with respect to the vertical direction (Z-axis direction) (Y-axis direction) such that the forward rotation mechanism 51 is spaced from the linkage portion 7 with respect to the front-rear direction (Y-axis direction), and a forward upper and lower member 522 And an advance forward / backward member (523) formed thereon. The method according to claim 1,
Wherein the backward pedal portion (4) comprises a backward spacing member (43) spaced apart from the forward pedal portion (3) in the left-right direction (X-axis direction). The method according to claim 1,
(3) and at least one of the forward pedal portions (4) so as to provide a buffering force in a direction opposite to a direction in which the forward pedal portion (3) and the backward pedal portion (4) (8) for driving the agricultural work vehicle. 8. The method of claim 7,
The cushioning portion 8 includes a cushioning rotary member 81 that is rotatably installed as the forward pedal portion 3 and the backward pedal portion 4 are moved and a buffer rotary member 81 connected to the buffer rotary member 81, And a buffer mechanism (82) for providing buffering force to the rotating member (81)
Wherein the buffer mechanism (82) is located downward (in the direction of the arrow DD) with respect to the pedal rotation shaft (110). The method according to claim 1,
And a limiter for limiting the movable distance of the forward pedal portion 3 and the backward pedal portion 4 as one of the forward pedal portion 3 and the backward pedal portion 4 limits the movable distance, (120). ≪ / RTI > 10. The method of claim 9,
The restricting portion 120 includes a supporting member 121 installed to be connected to the vehicle body 100 and a first engaging member 122 which is engaged with the supporting member 121 as it is moved downward , And a second engaging member (123) that engages with the support member (121) as it is moved upward (UD arrow direction).

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