KR102147690B1 - Apparatus for Correcting Neutral Position of Transmission Pedal for Agricultural Vehicle - Google Patents

Abstract

The present invention is a pedal unit for performing a forward and backward shift for an agricultural work vehicle, one side is coupled to the pedal unit and the other side is a connection arm rotatably coupled to the vehicle body of the agricultural work vehicle, rotatable to the vehicle body A rotation unit to be coupled, a neutral sensing unit detecting whether the pedal unit is located in a preset neutral position according to whether the rotation unit is in contact, and a correction unit for pressing and moving the rotation unit as the pedal unit rotates, and the correction unit The first support member coupled to the connection arm so as to rotate together as the connection arm rotates, and the first support member to adjust a distance protruding from the first support member in a direction from the first support member toward the rotation part It relates to a gear shift pedal neutral position correction device of an agricultural work vehicle comprising a first correction member coupled to the member.

Description

Apparatus for Correcting Neutral Position of Transmission Pedal for Agricultural Vehicle}

The present invention relates to a shift pedal neutral position correction device of an agricultural work vehicle for correcting the neutral position of a shift pedal used to advance and reverse the agricultural work vehicle.

Agricultural work vehicles are used to cultivate crops necessary for human life by using the land. For example, combines, tractors, etc. are agricultural work vehicles. The combine is the work of harvesting and threshing crops such as rice, barley, wheat, and soybeans. Tractors use traction to perform the work required to grow crops.

Such an agricultural work vehicle includes a forward and backward transmission to change the moving direction as needed during the working process. The forward and backward transmission includes a shift pedal that an operator can step on to perform shifting for forward and backward the agricultural work vehicle according to the operator's operation.

1 is a schematic perspective view of a transmission pedal in an agricultural work vehicle according to the prior art.

Referring to FIG. 1, an agricultural work vehicle according to the prior art includes a forward pedal 110 and a reverse pedal 120 for forward and backward shifting. The forward pedal 110 and the reverse pedal 120 are installed to be positioned at a position where an operator can step on.

When the worker steps on the forward pedal 110, the agricultural work vehicle according to the prior art is shifted forward and moved in the forward direction. When the operator steps on the reverse pedal 120, the work vehicle according to the prior art is shifted backward and moves in the reverse direction.

When the operator does not step on both the forward pedal 110 and the reverse pedal 120, the forward pedal 110 and the reverse pedal 120 are located in a neutral position. The neutral position is set so that a portion of the forward pedal 110 and the reverse pedal 120 stepped on by an operator is positioned at the same height.

However, in the agricultural work vehicle according to the prior art, when a processing error or an assembly error occurs during the manufacturing and processing of parts, the forward pedal 110 and the reverse pedal 120 are deviated from a preset neutral position. In this case, the agricultural work vehicle according to the prior art must undergo a reassembly process, such as a work of replacing a part that has been out of a preset neutral position with another part, and a work of assembling after full disassembly.

Therefore, when the forward pedal 110 and the reverse pedal 120 deviate from a preset neutral position due to a component processing error and an assembly error, the agricultural work vehicle according to the prior art, the forward pedal 110 and the reverse There is a problem in that it is difficult to correct the pedal 120 to a preset neutral position, and productivity decreases as a considerable amount of time is taken for the reassembly process for correcting the neutral position.

The present invention has been conceived to solve the above-described problems, and is to provide an apparatus for correcting a shift pedal neutral position for an agricultural work vehicle capable of solving the difficulty in correcting a neutral position for a shift pedal.

An object of the present invention is to provide an apparatus for correcting a shift pedal neutral position for an agricultural work vehicle capable of preventing a decrease in productivity due to the time taken to correct a neutral position for a shift pedal.

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

An apparatus for correcting a shift pedal neutral position of an agricultural work vehicle according to the present invention comprises: a pedal unit for performing a forward and backward shift for an agricultural work vehicle; A connection arm having one side coupled to the pedal unit and the other side rotatably coupled to the vehicle body of the agricultural work vehicle; A rotating part rotatably coupled to the vehicle body; A neutral sensing unit coupled to the vehicle body and detecting whether the pedal unit is located in a preset neutral position according to whether or not the rotating unit is in contact; And a correction unit coupled to the connection arm and pressing and moving the rotation unit as the pedal unit rotates.

In the transmission pedal neutral position correction apparatus of an agricultural work vehicle according to the present invention, the correction unit is a first support member coupled to the connection arm so as to rotate together as the connection arm rotates, and the first support member rotates It may include a first compensating member coupled to the first support member so as to rotate together and press the rotating part.

In the shift pedal neutral position correction apparatus of an agricultural work vehicle according to the present invention, the first correction member is the first support member to adjust a distance protruding from the first support member in a direction toward the rotation part. It can be coupled to the support member.

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

The present invention is implemented to correct the neutral position for the pedal unit by adjusting the distance that the first correction member protrudes from the first support member, thereby improving the ease and accuracy for correcting the neutral position for the pedal unit. I can make it.

The present invention is implemented to correct the neutral position for the pedal unit by adjusting the distance that the first correction member protrudes from the first support member, thereby reducing the time required for correcting the neutral position for the pedal unit. , It can contribute to increase the productivity of agricultural work vehicles.

1 is a schematic perspective view of a transmission pedal in an agricultural work vehicle according to the prior art
2 is a schematic perspective view of a gearshift pedal neutral position correction device of an agricultural work vehicle according to the present invention
3 is a conceptual side view for explaining an operation relationship in the case of a neutral position in the gearshift pedal neutral position correction device of the agricultural work vehicle according to the present invention
Figure 4 is a conceptual side view for explaining the operation relationship when the forward shift in the shift pedal neutral position correction device of the agricultural work vehicle according to the present invention
Figure 5 is a conceptual side view for explaining the operation relationship when the reverse shift in the shift pedal neutral position correction device of the agricultural work vehicle according to the present invention
6 is a schematic side cross-sectional view of a rotating part in the gearshift pedal neutral position correction device of an agricultural work vehicle according to the present invention
Figure 7 is a schematic side cross-sectional view for explaining the elastic portion in the shift pedal neutral position correction device of the agricultural work vehicle according to the present invention

Hereinafter, with reference to the accompanying drawings, an embodiment of a shift pedal neutral position correction device of an agricultural work vehicle according to the present invention will be described in detail.

Figure 2 is a schematic perspective view of the gearshift pedal neutral position correction device of the agricultural work vehicle according to the present invention, Figure 3 is an operation relationship in the case of a neutral position in the shift pedal neutral position correction device of the agricultural work vehicle according to the present invention A conceptual side view for explaining, FIG. 4 is a conceptual side view for explaining the operation relationship when the forward gear is shifted in the gearshift pedal neutral position correction device of the agricultural work vehicle according to the present invention, and FIG. A conceptual side view for explaining the operation relationship when the shift pedal neutral position correction device of a vehicle is reversely shifted, FIG. 6 is a schematic side view of a rotating part in the shift pedal neutral position correction device of an agricultural work vehicle according to the present invention FIG. 7 is a schematic side cross-sectional view for explaining an elastic part in the gearshift pedal neutral position correction apparatus of an agricultural work vehicle according to the present invention.

2 and 3, the gearshift pedal neutral position correction device 1 of an agricultural work vehicle according to the present invention is provided in an agricultural work vehicle (not shown) such as a tractor or a combine. The transmission pedal neutral position correction device 1 of an agricultural work vehicle according to the present invention includes a pedal unit 2, a connection arm 3, a rotating unit 4, a neutral sensing unit 5, and a correction unit 6 do.

The pedal unit 2 is for performing a forward and backward shift for the agricultural work vehicle. The pedal unit 2 is installed in the vehicle body 100 of the agricultural work vehicle so as to be located at a position where a worker can step on the agricultural work vehicle. The pedal unit 2 may be installed to be connected to a transmission (not shown) installed in the agricultural work vehicle. In this case, the operator can operate the shifting device by selectively stepping on the pedal unit 2 so as to perform a forward and backward shift for the agricultural work vehicle. The transmission may be a hydraulic continuously variable transmission (HST).

2 to 5, the pedal unit 2 may include a forward pedal 21 and a reverse pedal 22.

The forward pedal 21 is for performing a forward shift for the agricultural work vehicle. The reverse pedal 22 is for performing a reverse shift for the agricultural work vehicle.

When the forward pedal 21 is stepped on by a worker, the forward pedal 21 rotates in the first rotation direction (CW arrow direction) and transmits an operating force to the transmission, thereby performing forward shift for the agricultural work vehicle. Can be done.

When the reversing pedal 22 is stepped on by an operator, the reversing pedal 22 rotates in the first rotation direction (CW arrow direction) and transmits an operating force to the transmission, thereby shifting backwards for the agricultural work vehicle. Can be done.

When both the forward pedal 21 and the reverse pedal 22 are not stepped on by an operator, the forward pedal 21 and the reverse pedal 22 are positioned at a preset neutral position. In this case, when the foot force provided by the operator is removed while the forward pedal 21 is stepped on by the operator and rotated in the first rotation direction (CW arrow direction), the forward pedal 21 is in the second rotation direction (CCW). It can be rotated in the direction of the arrow) and positioned at the neutral position. The second rotation direction (CCW arrow direction) is a rotation direction opposite to the first rotation direction (CW arrow direction). When the reversing pedal 22 is stepped on by an operator and rotated in the first rotation direction (CW arrow direction) and the foot force provided by the operator is removed, the reversing pedal 22 is in the second rotation direction (CCW arrow direction). ) To be positioned in the neutral position.

2 to 5, the connection arm 3 is for connecting the pedal unit 2 to the transmission. One side of the connection arm 3 is coupled to the pedal unit 2. The other side of the connection arm 3 is rotatably coupled to the vehicle body 100. The other side of the connection arm 3 may be coupled to be connected to the transmission. Accordingly, the connection arm 3 may transmit the operating force provided from the pedal unit 2 to the transmission so that the forward and backward shift is performed with respect to the agricultural work vehicle.

The connection arm 3 may include an advance arm 31 and a backward arm 32.

The forward arm 31 is for connecting the forward pedal 21 and the transmission. One side of the advance arm 31 may be coupled to the forward pedal 21 and the other side may be rotatably coupled to the vehicle body 100. Accordingly, the forward arm 31 may rotate together as the forward pedal 21 rotates while being coupled to the vehicle body 100. The other side of the advance arm 31 may be coupled to be connected to the transmission. Accordingly, the forward arm 31 may transmit the operating force provided from the forward pedal 21 to the transmission so that the forward shift is performed with respect to the agricultural work vehicle.

The reverse arm 32 is for connecting the reverse pedal 22 and the transmission. One side of the reversing arm 32 may be coupled to the reversing pedal 22 and the other side of the reversing arm 32 may be rotatably coupled to the vehicle body 100. Accordingly, the reversing arm 32 may rotate together as the reversing pedal 22 rotates while being coupled to the vehicle body 100. The other side of the reverse arm 32 may be coupled to be connected to the transmission. Accordingly, the reversing arm 32 may transmit an operating force provided from the reversing pedal 22 to the transmission so that a reverse shift is performed for the agricultural work vehicle.

The reversing arm 32 and the advancing arm 31 may be disposed to be located at positions spaced apart from each other in the first axis direction (X axis direction). In this case, the forward pedal 21 and the reverse pedal 22 are disposed to be located at a position spaced apart from each other in a second axis direction (Y axis direction) perpendicular to the first axis direction (X axis direction). I can. The reversing arm 32 and the advancing arm 31 may be formed in a rectangular rod shape as a whole, but are not limited thereto, and the operation force provided from the forward pedal 21 and the reverse pedal 22 is shifted. If it is a form that can be delivered to the device, it may be formed in another form.

2 to 5, the rotation part 4 is used to detect whether the pedal part 2 is located in the neutral position. The rotating part 4 is rotatably coupled to the vehicle body 100. When the pedal unit 2 rotates according to the operator's manipulation, the rotating unit 4 receives the rotational force of the pedal unit 2 through the correction unit 6 and can rotate around the rotation shaft 41. have.

The rotating part 4 may include a first rotating member 42 and a second rotating member 43.

The first rotating member 42 is for contacting the neutral sensing unit 5. When the pedal part 2 is located in the neutral position, the first rotating member 42 may contact the neutral sensing part 5. Accordingly, the neutral sensing unit 5 may detect whether the pedal unit 2 is located in the neutral position according to whether the first rotating member 42 is in contact. The first rotating member 42 may be formed in a rectangular plate shape as a whole, but is not limited thereto, and may be formed in another shape as long as it can be in contact with the neutral sensing unit 5.

The first rotation member 42 may be formed to protrude from the rotation shaft 41. The first rotation member 42 may be formed to protrude from the rotation shaft 41 in a first direction (direction of an arrow FD). The first direction (direction of the FD arrow) may be a direction parallel to a direction in which the agricultural work vehicle moves forward. The first rotating member 42 may be disposed above the neutral sensing unit 5. When the forward pedal 21 rotates, the first rotating member 42 may rotate around the rotation shaft 41 by receiving the rotational force of the forward pedal 21 through the correction unit 6. That is, the first rotating member 42 may rotate in association with the pedal unit 2 through the correction unit 6.

The second rotating member 43 is coupled to the first rotating member 42. The second rotating member 43 may be coupled to the first rotating member 42 so as to rotate together as the first rotating member 42 rotates. That is, the second rotation member 43 and the first rotation member 42 may rotate together about the rotation shaft 41. The rotation shaft 41 is located between the second rotation member 43 and the first rotation member 42. The second rotating member 43 may be formed in a rectangular plate shape as a whole, but is not limited thereto and may be formed in another shape as long as it can be rotated together with the first rotating member 42.

The second rotation member 43 may be formed to protrude from the rotation shaft 41. The second rotation member 43 and the first rotation member 42 may each be formed to protrude in different directions with respect to the rotation shaft 41. When the first rotation member 42 is formed to protrude from the rotation shaft 41 in the first direction (the direction of the FD arrow), the second rotation member 43 is disposed downward from the rotation shaft 41 (the DD arrow direction). Direction) may be formed to protrude. The second rotation member 43 and the first rotation member 42 may be formed to protrude in a direction perpendicular to each other.

The second rotation member 43 may be disposed to be positioned in the second direction (SD arrow direction) side with respect to the neutral sensing unit 5. The second direction (direction of arrow SD) is a direction opposite to the first direction (direction of arrow FD). When the reverse pedal 22 rotates, the second rotation member 43 may rotate around the rotation shaft 41 by receiving the rotational force of the reverse pedal 21 through the correction unit 6. That is, the second rotating member 43 may rotate in association with the pedal unit 2 through the correction unit 6.

2 to 5, the neutral sensing unit 5 is for detecting whether the pedal unit 2 is located in the neutral position. The neutral sensing unit 5 may detect whether the pedal unit 2 is located in the neutral position and transmit a signal for indicating whether the pedal unit 2 is neutral to the operation panel. The neutral sensing unit 5 may detect whether the pedal unit 2 is located in the neutral position according to whether the rotating unit 4 is in contact. The neutral sensing unit 5 may be fixedly coupled to the vehicle body 100. Accordingly, the rotating part 4 may be in contact with the neutral sensing part 5 while rotating around the rotating shaft 41 and may be spaced apart from the neutral sensing part 5. The neutral sensing unit 5 may be implemented as a contact sensor.

The neutral sensing unit 5 may detect whether the pedal unit 2 is located in the neutral position according to whether the first rotating member 42 is in contact. In this case, the neutral sensing part 5 may be coupled to the vehicle body 100 so as to be located under the first rotating member 42. When the first rotation member 42 rotates in the second rotation direction (CCW arrow direction) around the rotation shaft 41, the first rotation member 42 is spaced apart from the neutral sensing unit 5 Can rotate in any direction. When the first rotation member 42 rotates in the first rotation direction (CW arrow direction) around the rotation shaft 41, the first rotation member 42 contacts the neutral sensing unit 5 Can rotate in any direction.

The neutral sensing part 5 may be coupled to the vehicle body 100 so as to be positioned in the first direction (direction of the FD arrow) with respect to the second rotating member 43. The second rotation member 43 is located in the second direction (SD arrow direction) side with respect to the neutral sensing unit 5, the first rotation direction (CW arrow direction) and the It can rotate in the second rotation direction (CCW arrow direction).

2 to 5, the correction unit 6 is for correcting the neutral position. The correction unit 6 is coupled to the connection arm 3 and thus rotates together as the connection arm 3 rotates. Accordingly, the correction unit 6 may move by pressing the rotation unit 4 as the pedal unit 2 rotates. The correction unit 6 is installed to support each of the first rotating member 42 and the second rotating member 43. Accordingly, when the forward pedal 21 is stepped on by an operator, the correction unit 6 can move the first rotating member 42 by pressing. When the reverse pedal 22 is stepped on by a worker, the correction unit 6 may press the second rotating member 43 to move it. When both the forward pedal 21 and the reverse pedal 22 are not stepped on by an operator, the correction unit 6 is located at a position in which the rotation unit 4 contacts the neutral sensing unit 5 The first rotation member 42 and the second rotation member 43 may be supported so as to be performed.

The correction unit 6 may include a first support member 61 and a first correction member 62.

Since the first support member 61 is coupled to the connection arm 3, it may rotate together as the connection arm 3 rotates. Accordingly, the first support member 61 can rotate together with the pedal unit 2 and the connection arm 3 when the pedal unit 2 rotates according to an operator's manipulation. The first support member 61 may be fixedly coupled to the connection arm 3.

The first correction member 62 is for pressing the rotating part 4. The first correction member 62 is coupled to the first support member 61. Accordingly, the first correction member 62 may rotate together as the first support member 61 rotates to press the rotating part 4. When the first compensating member 62 presses the rotating part 4, the rotating part 4 rotates about the rotating shaft 41 in the second rotation direction (CCW arrow direction), so that the neutral sensing part ( 5) can be separated from. In this case, the pedal unit 2 is stepped on by an operator. When the pressing force that presses the rotation part 4 by the first correction member 62 is removed, the rotation part 4 rotates in the first rotation direction (CW arrow direction) around the rotation shaft 41 It may be brought into contact with the neutral sensing unit 5. In this case, the pedal unit 2 is not stepped on by an operator.

In this way, the correction unit 6 selectively presses the rotating unit 4 according to whether the operator has stepped on the pedal unit 2, thereby determining whether the pedal unit 2 is located in the neutral position. Accordingly, the rotating part 4 is implemented to selectively contact the neutral sensing part 5.

The first correction member 62 is coupled to protrude from the first support member 61 in a direction from the first support member 61 to the rotation part 4. A portion of the first compensating member 62 protruding from the first support member 61 may selectively press the rotating part 4.

The first correction member 62 may be coupled to the first support member 61 so that a distance protruding from the first support member 61 is adjusted. Accordingly, the correction unit 6 is implemented to adjust the neutral position with respect to the pedal unit 2. Looking at this in detail, it is as follows.

First, the first supporting member 61 is coupled to the advancing arm 31, and the first compensating member 62 is the advancing arm 31 and the first supporting member when the forward pedal 21 is stepped on. As 61 rotates, it is arranged to move by pressing the first rotating member 42. In this case, the first correction member 62 protrudes from the first support member 61 in an upward direction (in the direction of arrow UD) from the first support member 61 toward the first rotation member 42. It is coupled to the first support member 61.

Next, when the forward pedal 21 is further rotated in the first rotation direction (CW arrow direction) due to processing errors, assembly errors, etc. at a preset neutral position, the first correction member 62 As the forward pedal 21 is further rotated in the first rotation direction (CW arrow direction) from a preset neutral position, the first rotation member 42 is pressed and moved in the upward direction (UD arrow direction). . Accordingly, even when the operator does not step on the forward pedal 21, the first rotating member 42 rotates about the rotating shaft 41 in the second rotation direction (CCW arrow direction) to sense the neutrality. It is separated from the part (5). Therefore, the neutral sensing unit 5 cannot detect whether the forward pedal 21 is in a state that is not stepped on by an operator.

In this case, the first compensating member 62 protrudes from the first support member 61 as much as the forward pedal 21 is further rotated in the first rotation direction (CW arrow direction) at a preset neutral position. It can be adjusted so that the distance to be reduced. Accordingly, even when the forward pedal 21 is located in a position further rotated in the first rotation direction (CW arrow direction) from a preset neutral position, the first correction member 62 is the first rotation member ( Since the pressure 42 is not pressed, the first rotating member 42 can maintain a state in contact with the neutral sensing unit 5. Therefore, even when the forward pedal 21 is located at a position further rotated in the first rotation direction (CW arrow direction) due to a processing error, an assembly error, etc. at a preset neutral position, It is possible to detect whether the forward pedal 21 is not stepped on by an operator. Accordingly, the first correction member 62 may correct a neutral position with respect to the forward pedal 21.

As described above, the transmission pedal neutral position correction device 1 of an agricultural work vehicle according to the present invention adjusts the distance at which the first correction member 62 protrudes from the first support member 61, It is implemented to correct the neutral position for the part (2). Accordingly, the transmission pedal neutral position correction device 1 of an agricultural work vehicle according to the present invention can improve the ease and accuracy of the operation of correcting the neutral position of the pedal unit 2. In addition, since the shift pedal neutral position correction device 1 of the agricultural work vehicle according to the present invention can reduce the time taken to correct the neutral position of the pedal unit 2, it increases the productivity of the agricultural work vehicle. You can contribute to making it happen.

The first correction member 62 is the first support member so that the distance protruding from the first support member 61 in a direction from the first support member 61 toward the first rotation member 42 is adjusted. Can be combined in (61). In this case, the first correction member 62 may be disposed to be located under the first rotating member 42. The first correction member 62 may rotate the first rotating member 42 by pressing the bottom surface of the first rotating member 42. The first support member 61 may be coupled to the advancing arm 31 from the lower side of the first rotating member 42. The first support member 61 may be coupled to the advancing arm 31 so as to protrude from the advancing arm 31 in the second direction (direction SD arrow). The first correction member 62 may be coupled to the first support member 61 so as to protrude from the first support member 61 in the upward direction (direction of an arrow UD).

The first correction member 62 may include a first insertion member 621, a first pressing member 622, and a first fastening member 623.

The first insertion member 621 may be inserted into the first support member 61. In this case, the first support member 61 may include a first insertion hole into which the first insertion member 621 is inserted. The first insertion hole may be formed through the first support member 61. The first insertion member 621 may be inserted into the first insertion hole so as to protrude to both sides of the first support member 61. A thread for fastening to the first fastening member 623 may be formed on an outer surface of the first insertion member 621.

The first pressing member 622 is for pressing the rotating part 4. The first pressing member 622 may press the first rotating member 42. In this case, the first pressing member 622 may be coupled to the first insertion member 621 so as to be positioned in the upward direction (in the direction of the UD arrow) with respect to the first insertion member 621. The first pressing member 622 and the first insertion member 621 may be integrally formed.

The first fastening member 623 is for fixing the first insertion member 621 to the first support member 61. The first fastening member 623 may be fastened with the first insertion member 621 to fix the first insertion member 621 in a state inserted into the first support member 61. A first fastening hole for inserting the first inserting member 621 may be formed in the first fastening member 623. In the portion of the first fastening member 623 where the first fastening hole is formed, a thread having a shape corresponding to a thread formed on the outer surface of the first insertion member 621 may be formed. The first fastening member 623 may be implemented as a nut. The first insertion member 621 may be implemented as a bolt.

Depending on the degree of fastening between the first fastening member 623 and the first insertion member 621, the distance of the first pressing member 622 protruding from the first support member 61 may be adjusted. Accordingly, the gear shift pedal neutral position correction device 1 of the agricultural work vehicle according to the present invention is the first insertion member to adjust the degree of fastening between the first insertion member 621 and the first fastening member 623 ( By only rotating at least one of 621) and the first fastening member 623, the first pressing member 622 is implemented to adjust the distance protruding from the first support member 61. Accordingly, the transmission pedal neutral position correction device 1 of an agricultural work vehicle according to the present invention can further improve the ease and accuracy of the operation of correcting the neutral position with respect to the pedal unit 2. In addition, since the shift pedal neutral position correction device 1 of the agricultural work vehicle according to the present invention can further reduce the time it takes to correct the neutral position with respect to the pedal unit 2, the productivity of the agricultural work vehicle is improved. Can contribute to further augmentation.

The first correction member 62 may include a plurality of the first fastening members 623. In this case, the first fastening members 623 may be disposed to be located opposite to each other with respect to the first support member 61. When the first compensating member 62 includes two first fastening members 623, one first fastening member 623 is in an upward direction with respect to the first support member 61 (in the direction of arrow UD). The other first fastening member 623 may be located on the side, and the other first fastening member 623 may be located downward (in the direction of the DD arrow) with respect to the first support member 61. In this case, the first fastening members 623 may be fastened with the first insertion member 621 so as to contact the first support member 61, respectively. Accordingly, so that the first pressing member 622 protrudes from the first support member 61 in a controlled state, the first fastening members 623 attach the first insertion member 621 Can be firmly fixed.

The correction unit 6 may include a second support member 63 and a second correction member 64.

Since the second support member 63 is coupled to the connection arm 3, it may rotate together as the connection arm 3 rotates. Accordingly, the second support member 63 can rotate together with the pedal unit 2 and the connection arm 3 when the pedal unit 2 rotates according to an operator's manipulation. The second support member 63 may be fixedly coupled to the connection arm 3. The second support member 63 may be fixedly coupled to the reversing arm 32. Accordingly, the second support member 63 may rotate together with the reverse pedal 22 and the reverse arm 32 when the reverse pedal 22 rotates according to an operator's manipulation.

The second correction member 64 is for pressing the rotating part 4. The second correction member 64 may be disposed to press the second rotating member 43. The second correction member 64 is coupled to the second support member 63. Accordingly, the second compensating member 64 may rotate together as the second support member 63 rotates to press the second rotating member 43. When the second correction member 64 presses the second rotation member 43, the first rotation member 42 rotates in the second rotation direction (CCW arrow direction) around the rotation shaft 41 By doing so, it can be separated from the neutral sensing unit 5. In this case, the reverse pedal 22 is stepped on by an operator. When the pressing force that presses the second rotation member 43 by the second correction member 64 is removed, the first rotation member 42 rotates in the first rotation direction (CW arrow) around the rotation shaft 41. Direction), the neutral sensing unit 5 may be contacted. In this case, the reverse pedal 22 is not stepped on by an operator.

As such, the second correction member 64 selectively presses the second rotating member 43 according to whether the operator has stepped on the reverse pedal 22, so that the reverse pedal 22 is in a neutral position. The first rotating member 42 is implemented to selectively contact the neutral sensing unit 5 depending on whether it is located at.

The second correction member 64 is coupled to protrude from the second support member 63 in a direction from the second support member 63 toward the second rotation member 43. A portion of the second compensating member 64 protruding from the second support member 63 may selectively press the rotating part 4. The second correction member 64 may be disposed to be positioned in the second direction (SD arrow direction) with respect to the second rotation member 43. In this case, the second support member 63 may be disposed to be positioned in the second direction (SD arrow direction) with respect to the second rotation member 43.

The second correction member 64 may be coupled to the second support member 63 so that a distance protruding from the second support member 63 is adjusted. Accordingly, the correction unit 6 is implemented to adjust the neutral position with respect to the reverse pedal 22. Looking at this in detail, it is as follows.

First, the second support member 63 is coupled to the reversing arm 32, and the second compensating member 64 is the reversing arm 32 and the second support member when the reversing pedal 22 is stepped on. As the (63) rotates, it is arranged to move by pressing the second rotating member (43). In this case, the second correction member 64 protrudes from the second support member 63 in a first direction (the direction of the FD arrow) from the second support member 63 toward the second rotation member 43 It is coupled to the second support member 63 so as to be.

Next, when the reverse pedal 22 is located at a position further rotated in the first rotation direction (CW arrow direction) due to processing errors, assembly errors, etc. at a preset neutral position, the second correction member 64 As the reverse pedal 22 is further rotated in the first rotation direction (CW arrow direction) from a preset neutral position, the second rotation member 43 is pressed and moved in the first direction (FD arrow direction). do. Accordingly, even in a state in which the operator does not step on the reverse pedal 22, the second rotation member 43 and the first rotation member 42 are in the second rotation direction (CCW) around the rotation shaft 41. It rotates in the direction of the arrow) and is spaced apart from the neutral sensing unit 5. Accordingly, the neutral sensing unit 5 cannot detect whether or not the reverse pedal 22 is stepped on by an operator.

In this case, the second correction member 64 protrudes from the second support member 63 as the reverse pedal 22 is further rotated in the first rotation direction (CW arrow direction) at a preset neutral position. It can be adjusted so that the distance to be reduced. Accordingly, even when the reverse pedal 22 is located at a position further rotated in the first rotation direction (CW arrow direction) from a preset neutral position, the second correction member 64 is the second rotation member ( Since the pressure 43) is not pressed, the first rotating member 42 can maintain a state in contact with the neutral sensing unit 5. Therefore, even when the neutral sensing unit 5 is located at a position further rotated in the first rotation direction (CW arrow direction) due to a processing error, an assembly error, etc. at a preset neutral position, It is possible to detect whether the reverse pedal 22 is in a state that is not stepped on by an operator. Accordingly, the second correction member 64 may correct the neutral position of the reverse pedal 22.

As described above, the transmission pedal neutral position correction device 1 of an agricultural work vehicle according to the present invention adjusts the distance at which the second correction member 64 protrudes from the second support member 63, thereby reversing the It is implemented to correct the neutral position for the pedal 22. Therefore, the transmission pedal neutral position correction device 1 of an agricultural work vehicle according to the present invention can improve the ease and accuracy of the work of correcting the neutral position for the reverse pedal 22. In addition, since the shift pedal neutral position correction device 1 of the agricultural work vehicle according to the present invention can reduce the time taken for correcting the neutral position of the reverse pedal 22, it increases productivity for the agricultural work vehicle. You can contribute to making it happen.

The second correction member 64 is the second support member so that the distance protruding from the second support member 63 in a direction from the second support member 63 toward the second rotation member 43 is adjusted. Can be combined in (63). In this case, the second correction member 64 may be disposed to be positioned in the second direction (SD arrow direction) side with respect to the second rotation member 43. The second correcting member 64 may rotate the second rotating member 43 by pressing the side surface of the second rotating member 43. The second support member 63 may be coupled to the reversing arm 32 in the second direction (SD arrow direction) with respect to the second rotation member 43. The second support member 63 may be coupled to the reversing arm 32 so as to protrude upward from the reversing arm 32 (in the direction of an arrow UD). The second correction member 64 may be coupled to the second support member 63 so as to protrude from the second support member 63 in the first direction (direction of an arrow FD).

The second correction member 64 may include a second insertion member 641, a second pressing member 642, and a second fastening member 643.

The second insertion member 641 may be inserted into the second support member 63. In this case, the second support member 63 may include a second insertion hole into which the second insertion member 641 is inserted. The second insertion hole may be formed through the second support member 63. The second insertion member 641 may be inserted into the second insertion hole so as to protrude to both sides of the second support member 63. A thread for fastening to the second fastening member 643 may be formed on an outer surface of the second insertion member 641.

The second pressing member 642 is for pressing the rotating part 4. The second pressing member 642 may press the second rotating member 43. In this case, the second pressing member 642 may be coupled to the second insertion member 641 so as to be positioned in the first direction (direction FD arrow) with respect to the second insertion member 641. The second pressing member 642 and the second insertion member 641 may be integrally formed.

The second fastening member 643 is for fixing the second insertion member 641 to the second support member 63. The second fastening member 643 may be fastened to the second insertion member 641, thereby fixing the second insertion member 641 in a state inserted into the second support member 63. The second fastening member 643 may be provided with a second fastening hole for inserting the second insertion member 641. A portion of the second fastening member 643 in which the second fastening hole is formed may be formed with a thread having a shape corresponding to a thread formed on the outer surface of the second insertion member 641. The second fastening member 643 may be implemented as a nut. The second insertion member 641 may be implemented as a bolt.

Depending on the degree of fastening between the second fastening member 643 and the second insertion member 641, the distance of the second pressing member 642 protruding from the second support member 63 may be adjusted. Accordingly, the transmission pedal neutral position correction device (1) of the agricultural work vehicle according to the present invention is the second insertion member to adjust the degree of fastening between the second insertion member (641) and the second fastening member (643) ( 641) and by only rotating at least one of the second fastening member 643, the second pressing member 642 is implemented to adjust the distance protruding from the second support member 63. Accordingly, the transmission pedal neutral position correction device 1 of an agricultural work vehicle according to the present invention can further improve the ease and accuracy of the work of correcting the neutral position with respect to the reverse pedal 22. In addition, since the shift pedal neutral position correction device 1 of the agricultural work vehicle according to the present invention can further reduce the time taken for the work of correcting the neutral position for the reverse pedal 22, the productivity for the agricultural work vehicle Can contribute to further augmentation.

The second correction member 64 may include a plurality of the second fastening members 643. In this case, the second fastening members 643 may be disposed to be located opposite to each other with respect to the second support member 63. When the second correcting member 64 includes two second fastening members 643, one second fastening member 643 is in a first direction (FD arrow direction) with respect to the second support member 63 ) Side, and the other second fastening member 643 may be positioned in the second direction (SD arrow direction) side with respect to the second support member 63. In this case, the second fastening members 643 may be fastened to the second insertion member 641 so as to contact the second support member 63, respectively. Accordingly, the second fastening members 643 secure the second insertion member 641 so that the distance protruding from the second support member 63 is maintained in a controlled state. Can be firmly fixed.

The second correction member 64 and the first correction member 62 may be disposed to contact the second rotation member 43 and the first rotation member 42 at the neutral position, respectively. The second correction member 64 and the first correction member 62 are each of the second rotating member 43 and the first rotating member 43 according to which of a forward shift and a reverse shift is performed for the agricultural work vehicle. It may be disposed to be selectively spaced apart from the rotating member 42.

For example, when the forward pedal 21 rotates in the first rotation direction (in the direction of the CW arrow) to perform a forward shift for the agricultural work vehicle, the first compensating member 62 is the forward arm 31 As it rotates in the first rotation direction (CW arrow direction), the first rotation member 42 may be pressed and moved. Accordingly, the first rotation member 42 and the second rotation member 43 rotate in the second rotation direction (CCW arrow direction) around the rotation shaft 41. Accordingly, the second compensating member 64 may be spaced apart from the second rotating member 43. In this case, when the forward pedal 21 and the reverse pedal 22 are implemented to rotate in interlocking directions opposite to each other, the second compensating member 64 makes the reverse arm 32 rotate the second As it rotates in the direction (in the direction of the CCW arrow), it may be separated from the second rotating member 43 by a greater distance.

For example, when the reverse pedal 22 rotates in the first rotation direction (CW arrow direction) to perform a reverse shift for the agricultural work vehicle, the second compensating member 64 is the reverse arm 32 As it rotates in the first rotation direction (CW arrow direction), the second rotation member 43 may be pressed and moved. Accordingly, the second rotation member 43 and the first rotation member 42 rotate in the second rotation direction (CCW arrow direction) around the rotation shaft 41. Accordingly, the first correction member 62 may be spaced apart from the first rotating member 42. In this case, when the forward pedal 21 and the reverse pedal 22 are implemented to rotate in interlocking directions opposite to each other, the first compensating member 62 makes the forward arm 31 rotate the second As it rotates in the direction (in the direction of the CCW arrow), it may be spaced further away from the first rotating member 42.

2 to 7, the transmission pedal neutral position correction apparatus 1 of an agricultural work vehicle according to the present invention may include an elastic part 7.

The elastic part 7 is for providing elastic force to the rotating part 4. One side of the elastic part 7 may be coupled to the vehicle body 100 and the other side may be coupled to the rotating part 4. The elastic part 7 may have elastic force for rotating the rotation part 4 in a direction in contact with the neutral sensing part 5. The rotating part 4 may include a plurality of coupling holes 40 through which the elastic part 7 is coupled. The coupling holes 40 are formed through the rotating part 4. The coupling holes 40 may be disposed so as to be located at positions spaced apart from each other.

The elastic part 7 may be coupled to the vehicle body 100 such that one side is located at a position spaced apart from the rotation part 4. The other side of the elastic part 7 is coupled to any one of the coupling holes 40, so that the amount of elastic force provided to the rotating part 4 can be adjusted. This is because, depending on which of the coupling holes 40 the other side of the elastic portion 7 is coupled to one of the coupling holes 40, the distance between one side and the other side of the elastic portion 7 is changed. For example, when the other side of the elastic part 7 is coupled to the coupling hole 40 spaced farthest from one side of the elastic part 7, the elastic part 7 has the rotating part 4 It can be tensioned even in a state in contact with the neutral sensing part 5. Accordingly, the amount of elastic force provided by the elastic part 7 to the rotating part 4 in contact with the neutral sensing part 5 is increased. For example, when the other side of the elastic part 7 is coupled to the coupling hole 40 spaced apart from one side of the elastic part 7 by the shortest distance, the elastic part 7 has the rotation part 4 It may not be tensioned while in contact with the neutral sensing unit 5. Accordingly, the amount of elastic force provided by the elastic part 7 to the rotating part 4 in contact with the neutral sensing part 5 is reduced.

Accordingly, the transmission pedal neutral position correction device 1 of the agricultural work vehicle according to the present invention changes which of the coupling holes 40 the other side of the elastic part 7 is coupled to the neutral sensing unit ( It is possible to adjust the amount of elastic force provided to the rotating part 4 in contact with 5). Accordingly, the transmission pedal neutral position correction device 1 of the agricultural work vehicle according to the present invention can further improve the ease and accuracy of the operation of correcting the neutral position for the pedal unit 2, and the pedal unit (2) It can contribute to further increase the productivity for agricultural work vehicles by further reducing the time it takes to correct the neutral position for (2).

The coupling holes 40 may be formed in the first rotating member 42. The coupling holes 40 may be formed to be spaced apart from each other along a direction in which the first rotation member 42 protrudes from the rotation shaft 41. Accordingly, as the other side of the elastic part 7 is coupled to the coupling hole 40 formed at a position far from the rotation shaft 41, the elastic force provided to the rotation part 4 in contact with the neutral sensing part 5 You can increase the size. As the other side of the elastic part 7 is coupled to the coupling hole 40 formed at a position close to the rotation shaft 41, the amount of elastic force provided to the rotation part 4 in contact with the neutral sensing part 5 is reduced. I can make it. One side of the elastic part 7 may be coupled to the vehicle body 100 between the rotation shaft 40 and the coupling holes 40. One side of the elastic part 7 may be coupled to the vehicle body 100 from a lower side of the first rotating member 42.

6 shows that the first rotation member 42 has three coupling holes 40a, 40b, 40c, but is not limited thereto, and the first rotation member 42 has four or more coupling holes. (40) may be formed.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope of the technical spirit of the present invention. It will be obvious to those who have the knowledge of.

1: Gearshift pedal neutral position correction device of agricultural work vehicle
2: pedal unit 3: connection arm
4: rotating part 5: neutral sensing part
6: correction part 7: elastic part
21: forward pedal 22: reverse pedal
31: forward cancer 32: backward cancer
41: rotating shaft 42: first rotating member
43: second rotating member 61: first supporting member
62: first correction member 63: second support member
64: second compensation material 100: vehicle body

Claims (9)

A pedal unit 2 for performing a forward and backward shift for an agricultural work vehicle;
One side is coupled to the pedal unit (2), the other side is a connecting arm (3) rotatably coupled to the vehicle body 100 of the agricultural work vehicle;
A rotating part 4 rotatably coupled to the vehicle body 100;
A neutral sensing unit 5 coupled to the vehicle body 100 and detecting whether the pedal unit 2 is located in a preset neutral position according to whether the rotating unit 4 is in contact; And
It is coupled to the connection arm (3), and includes a correction unit (6) for moving by pressing the rotation unit (4) as the pedal unit (2) rotates,
As the first support member 61 coupled to the connection arm 3 and the first support member 61 rotate so that the correction unit 6 rotates together as the connection arm 3 rotates It includes a first compensating member 62 coupled to the first support member 61 so as to rotate together to press the rotating part 4,
The first correction member 62 is the first support member 61 so that the distance protruding from the first support member 61 in a direction from the first support member 61 toward the rotation part 4 is adjusted. Gearshift pedal neutral position correction device of an agricultural work vehicle, characterized in that coupled to. The method of claim 1,
The first support member 61 includes a first insertion hole into which the first correction member 62 is inserted,
The first correction member 62 is inserted into the first insertion member 621 inserted into the first insertion hole, a first pressing member 622 for pressing the rotating portion 4, and the first insertion hole It includes a first fastening member 623 fastened to the first insertion member 621,
The first pressing member 622 is characterized in that the distance protruding from the first support member 61 is adjusted according to the degree of fastening between the first insertion member 621 and the first fastening member 623 Gearshift pedal neutral position correction device for agricultural work vehicles. The method of claim 1,
It includes an elastic portion 7 for providing an elastic force to the rotating portion 4,
The rotating part 4 includes a plurality of coupling holes 40 to which the elastic part 7 is coupled,
One side of the elastic part 7 is coupled to the vehicle body 100, and the other side is coupled to any one of the coupling holes 40 so that the amount of elastic force provided to the rotating unit 4 is adjusted. Gearshift pedal neutral position correction device for agricultural work vehicles. The method of claim 3,
The rotating part 4 includes a first rotating member 42 in which the coupling holes 40 are formed,
The first rotation member 42 rotates about the rotation shaft 41, but is formed to protrude from the rotation shaft 41,
The coupling holes 40 are shift pedal neutral position correction apparatus of an agricultural work vehicle, characterized in that the first rotation member 42 is formed to be spaced apart from each other along a direction protruding from the rotation shaft 41. The method of claim 1,
The correction unit 6 includes a second correction member 64 for pressing the rotation unit 4,
The rotating part 4 includes a first rotating member 42 in contact with the first compensating member 62, and a second rotating member 43 in contact with the second compensating member 64,
The first rotation member 42 and the second rotation member 43 rotate together about the rotation shaft 41, but are formed to protrude in different directions relative to the rotation shaft 41 Vehicle shift pedal neutral position correction device. The method of claim 5,
The pedal unit 2 includes a forward pedal 21 for performing a forward shift for the agricultural work vehicle, and a reverse pedal 22 for performing a reverse shift for the agricultural work vehicle,
The connecting arm (3) includes an advance arm (31) coupled to the forward pedal (21), and a reverse arm (32) coupled to the reverse pedal (22),
The correction unit 6 includes a second support member 63 to which the second correction member 64 is coupled,
The first support member 61 is coupled to the advance arm 31,
The shift pedal neutral position correction device of an agricultural work vehicle, characterized in that the second support member (63) is coupled to the reverse arm (32). The method of claim 6,
When the forward pedal 21 rotates to perform a forward shift with respect to the agricultural work vehicle, the first correction member 62 rotates in the first rotation direction, so that the first rotation member Move by pressing (42),
When the second correction member 64 rotates so that the forward pedal 21 performs a forward shift for the agricultural work vehicle, the reverse arm 32 is in a second rotation direction opposite to the first rotation direction. The shift pedal neutral position correction device of an agricultural work vehicle, characterized in that spaced apart from the second rotating member (43) as it rotates. The method of claim 6,
The first correction member 62 is the first support member so that the distance protruding from the first support member 61 in a direction from the first support member 61 toward the first rotation member 42 is adjusted. Is bound to (61),
The second correction member 64 is the second support member so that the distance protruding from the second support member 63 in a direction from the second support member 63 toward the second rotation member 43 is adjusted. Gearshift pedal neutral position correction device of an agricultural work vehicle, characterized in that coupled to (63). The method of claim 8,
The second support member 63 includes a second insertion hole into which the second correction member 64 is inserted,
The second correction member 64 is inserted into the second insertion member 641 inserted into the second insertion hole, a second pressing member 642 for pressing the rotating part 4, and the second insertion hole. It includes a second fastening member 643 fastened to the second insertion member 641,
The second pressing member 642 is characterized in that the distance protruding from the second support member 63 is adjusted according to the degree of fastening between the second insertion member 641 and the second fastening member 643. Gearshift pedal neutral position correction device for agricultural work vehicles.

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