WO2022164190A1

WO2022164190A1 - Mount device of agricultural work vehicle

Info

Publication number: WO2022164190A1
Application number: PCT/KR2022/001366
Authority: WO
Inventors: 황지혜; 신재윤; 김보람; 임병선
Original assignee: 엘에스엠트론 주식회사
Priority date: 2021-01-28
Filing date: 2022-01-26
Publication date: 2022-08-04

Abstract

The present invention relates to a mount device of an agricultural work vehicle, the mount device supporting an operating room of the agricultural work vehicle and comprising: a support part supported by a vehicle body of an agricultural work vehicle; and a mount part which is elastically deformed according to the weight of the operating room and to which each of the support part and the operating room is coupled, wherein the mount part comprises a coupling member to which the support part is coupled and a first upper deformation member disposed on the upper side of the coupling member and formed to have a size to be reduced while extending toward the upper side thereof, and the outer surface of the first upper deformation member is formed to be curved and convex outward so that the curvature center thereof is located inside the mount part.

Description

Mounting device of agricultural work vehicle

The present invention relates to an agricultural work vehicle used for cultivating crops necessary for human life using land.

Agricultural work vehicles are used to grow crops necessary for human life using land. For example, a combine, a tractor, a rice transplanter, etc. correspond to agricultural work vehicles. The combine is to thresh crops such as rice, barley, wheat, and soybeans. A tractor uses traction to perform the work necessary to grow crops. The rice transplanter performs the work of transplanting seedlings grown in a nail bed or a seedling box to a paddy field.

The agricultural work vehicle includes a vehicle body to which an engine is coupled, a cab supported by the vehicle body, and a mount device disposed between the vehicle body and the cab. The vehicle body is coupled to a driving unit that implements driving using the driving generated by the engine. The cab is provided with a driver's seat for a worker to board. The cab is supported by the vehicle body through the mounting device.

Here, the static stiffness and dynamic stiffness of the mount device affect the ride quality of the agricultural work vehicle and the noise of the cab, the higher the static stiffness of the mount device, the higher the agricultural work vehicle It is possible to improve the ride comfort and durability of the cab, and the lower the dynamic rigidity of the mount device, the lower the noise in the cab. However, in general, since static stiffness and dynamic stiffness are proportional, there is a problem in that it is difficult to implement a mount device having high static stiffness and low dynamic stiffness.

The present invention has been devised to solve the above-described problems, and to provide a mounting apparatus for an agricultural work vehicle capable of reducing noise in the cab while improving riding comfort.

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

A mounting apparatus for an agricultural work vehicle according to the present invention supports a cab of the agricultural work vehicle, and includes a support part supported by the vehicle body of the agricultural work vehicle; and a mount portion that is elastically deformed according to the weight of the cab and is coupled to each of the support portion and the cab. The mount unit may include a coupling member to which the support part is coupled, and a first upper deformable member disposed above the coupling member to decrease in size as it extends upward. An outer surface of the first upper deforming member may be formed as an outwardly convex curved surface such that a center of curvature is located inside the mount unit.

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

The present invention is implemented so that the outer surface of the first upper deforming member is formed as a convex curved surface to the outside, thereby increasing the shin stiffness while maintaining the dynamic rigidity of the mount portion. Accordingly, the present invention can improve the riding comfort of the agricultural work vehicle and reduce the noise of the cab. In addition, since the present invention can increase durability by using the first upper deformable member, it is possible to increase the service life and reduce maintenance costs.

1 is a schematic side view showing an example of an agricultural work vehicle to which the mounting device of the agricultural work vehicle according to the present invention is applied; FIG.

2 is a schematic exploded side view of a mounting device for an agricultural work vehicle according to the present invention;

Figure 3 is a schematic side cross-sectional view showing the mounting device of the agricultural work vehicle according to the present invention based on the line I-I of Figure 2;

Figure 4 is a schematic partial side view for explaining the elastic deformation of the mount in the mounting apparatus of the agricultural work vehicle according to the present invention

5 is a partial side view of a comparative example;

6 is a schematic side cross-sectional view of a modified example of an upper modifying member and a lower modifying member of an embodiment of a mounting apparatus for an agricultural work vehicle according to the present invention shown in FIG.

7 is a schematic side cross-sectional view of a modified example in which a cover member is formed in an embodiment of a mounting device for an agricultural work vehicle according to the present invention shown in FIG.

Figure 8 is a schematic side cross-sectional view showing an enlarged portion A of Figure 7

Hereinafter, an embodiment of a mounting apparatus for an agricultural work vehicle according to the present invention will be described in detail with reference to the accompanying drawings. 4 and 5 are not cross-sectional views, but hatching is indicated for clear distinction between the components.

1 and 2, the mounting device 1 of the agricultural work vehicle according to the present invention is installed on the agricultural work vehicle 100 used to cultivate crops necessary for human life using land. The agricultural work vehicle 100 may be a tractor, a combine, a rice transplanter, and the like.

Prior to describing the embodiment of the mounting apparatus 1 of the agricultural work vehicle according to the present invention, an embodiment of the agricultural work vehicle 100 will be first described as follows.

The agricultural work vehicle 100 may include a vehicle body 110 and a cab 120 .

The vehicle body 110 supports an engine (not shown). A driving unit 111 may be coupled to the vehicle body 110 . The driving unit 111 drives the vehicle body 110 by using the driving generated by the engine. The driving unit 111 may include a transmission 112 , a wheel 113 , and the like. When the drive generated by the engine is transmitted to the wheels 113 through the transmission 112 , the vehicle body 110 may travel forward or backward as the wheels 113 rotate.

The cab 120 is provided with a driver's seat 121 for an operator to board. The operator can perform a predetermined task by riding on the driver's seat 121 and operating a steering device 122 and a manipulation device (not shown) provided in the cab 120 . The cab 120 may be supported by the vehicle body 110 through the mounting device 1 of the agricultural work vehicle according to the present invention. The mounting device 1 of the agricultural work vehicle according to the present invention may support the cab 120 by using the supporting force supported by the vehicle body 110 .

To this end, the mounting apparatus 1 of the agricultural work vehicle according to the present invention may include a mount unit 2 , and a support unit 3 .

1 to 3 , the mount unit 2 connects the vehicle body 110 and the cab 120 . The cab 120 may be coupled to the mount unit 2 . Accordingly, the mount unit 2 may support the cab 120 . The support part 3 may be coupled to the mount part 2 . The support part 3 may be coupled to the vehicle body 110 . Accordingly, the mount part 2 may be supported by the vehicle body 110 through the support part 3 , and the cab 120 may be supported using the support force corresponding thereto.

The mount part 2 may be formed of a material capable of elastic deformation. For example, the mount part 2 may be formed of rubber. The mount part 2 may be elastically deformed according to the weight of the cab 120 . For example, as the weight of the cab 120 increases, the degree of compression or tension of the mount unit 2 increases, and as the weight of the cab 120 becomes lighter, the mount unit 2 compresses or tensions. degree may be reduced. The mount part 2 may be elastically deformed as the vehicle body 110 moves. For example, as the height of the vehicle body 110 increases, the degree of compression or tension of the mount part 2 increases, and as the height of the vehicle body 110 decreases, the mount part 2 compresses or tensions. degree may be reduced. In this case, the height of the vehicle body 110 may be changed while moving in the vertical direction according to the curvature of the driving area. As such, the mount part 2 may be elastically deformed according to the weight of the cab 120 , the movement of the vehicle body 110 , and the like.

The mount part 2 may include a coupling member 21 .

The support part 3 may be coupled to the coupling member 21 . The coupling member 21 may correspond to a portion of the mount unit 2 disposed between an upper portion of the mount unit 2 and a lower portion of the mount unit 2 . The support part 3 may be coupled to the coupling member 21 by being inserted into the coupling groove 211 formed in the coupling member 21 . The coupling groove 211 may be implemented as a groove formed to a predetermined depth along the outer surface of the coupling member 21 .

1 to 6 , the mount part 2 may include a first upper deformable member 22 .

The first upper deformable member 22 is disposed above the coupling member 21 . The upper side of the coupling member 21 faces the cab 120 . In this case, the lower side of the coupling member 21 faces the vehicle body 110 . The first upper deformable member 22 may be formed to decrease in size as it extends upward. The outer surface 221 of the first upper deforming member 22 may be formed as an outwardly convex curved surface so that the center of curvature 222 is located inside the mount part 2 . Accordingly, the mounting device 1 of the agricultural work vehicle according to the present invention can achieve the following effects.

First, in the case of the comparative example in which the first upper deforming member 11 is formed with a flat inclined surface as shown in FIG. 5, in general, the proportional relationship between Dynamic Stiffness and Static Stiffness is applied as it is. . Therefore, in the comparative example, the riding comfort of the agricultural work vehicle 100 can be improved as the shin stiffness is increased, while the noise of the cab 120 is increased as the dynamic stiffness is also increased.

Next, in the case of the embodiment in which the first upper deforming member 22 is formed as an outwardly convex curved surface so that the center of curvature 222 of the outer surface 221 is located inside the mount part 2, the cab 120 of When an external force is applied to the mount part 2 due to an increase in weight or the elevation of the vehicle body 110, the first upper deforming member 22 moves in the first axial direction (as shown by a dotted line in FIG. 4). It is implemented so that it can be deformed to be more convex outward along the X-axis direction. This form is implemented so that the mount device 1 of the agricultural work vehicle according to the present invention can increase the shin stiffness while maintaining the dynamic rigidity of the mount part 2 by using the first upper deformable member 22 . Therefore, the mounting device 1 of the agricultural work vehicle according to the present invention can improve the riding comfort of the agricultural work vehicle 100 by increasing the static rigidity by using the first upper deforming member 22, and at the same time By maintaining the rigidity, it is possible to reduce the noise of the cab 120 . In addition, since the mounting apparatus 1 of the agricultural work vehicle according to the present invention can increase durability by using the first upper deformable member 22, it is possible to increase the service life and reduce the maintenance cost.

The first upper deformable member 22 may correspond to a portion of the mount portion 2 disposed above the coupling member 21 . The first upper deforming member 22 may be implemented in an outwardly convex shape such that the center of curvature 222 of the outer surface 221 in the overall truncated cone is located inside the mount unit 2 .

1 to 6 , the mount part 2 may include a second upper deformable member 23 .

The second upper deformable member 23 is disposed above the first upper deformable member 22 . The second upper deformable member 23 may be formed to decrease in size as it extends upward. The outer surface 231 of the second upper deformable member 23 may be formed as an outwardly concave curved surface so that the center of curvature 232 is located outside the mount unit 2 . In this case, it may be advantageous as the width of the uppermost end of the second upper deforming member 23 is smaller. Accordingly, the second upper deformable member 23 may be formed in a form to increase both dynamic and static rigidity. In this case, in comparison with the comparative example in which both the second upper deforming member 12 and the first upper deforming member 11 are formed with a flat inclined surface as shown in FIG. 5, the agricultural work vehicle according to the present invention The mounting device 1 has a curvature of the second upper deformable member 23 and the outer surface 221 formed as an outwardly concave curved surface so that the center of curvature 232 of the outer surface 231 is located on the outside of the mount unit 2 . By using the combination of the first upper deforming member 22 formed as an outwardly convex curved surface so that the center 222 is located inside the mount part 2, the amount of increase in shin stiffness can be increased while reducing the amount of increase in overall dynamic stiffness. do. Therefore, the mounting apparatus 1 of the agricultural work vehicle according to the present invention can reduce the noise of the cab 120 while improving the riding comfort of the agricultural work vehicle 100 . The second upper deformable member 23 may correspond to a portion of the mount portion 2 disposed above the first upper deformable member 22 . The second upper deformable member 23 may be embodied in an outwardly concave shape so that the center of curvature 232 of the outer surface 231 is located outside the mount unit 2 in the overall truncated cone. The second upper deformable member 23 and the first upper deformable member 22 may be integrally formed.

1 to 6 , the mount part 2 may include an upper changing member 24 .

The upper deformable member 24 is disposed between the first upper deformable member 22 and the second upper deformable member 23 . The upper modifying member 24 may be disposed at the upper end of the first upper deforming member 22 and at the lower end of the second upper deforming member 23 . The curvature of the first upper deformable member 22 and the second upper deformable member 23 may be changed based on the upper deformable member 24 . The upper changing member 24 may be formed in such a way that no corners are formed while the curvature is changed between the first upper deforming member 22 and the second upper deforming member 23 . The upper deformable member 24 may correspond to a portion of the mount unit 2 disposed between the first upper deformable member 22 and the second upper deformable member 23 . The upper changing member 24 , the first upper deforming member 22 , and the second upper deforming member 23 may be integrally formed.

As shown in FIG. 3 , the upper changing member 24 may be formed at any one point. As shown in FIG. 6 , the upper changing member 24 may be formed to have a predetermined thickness. In this case, the curvature of the first upper deformable member 22 may be changed based on the lower end of the upper deformable member 24 , and the second upper deformable member 23 may have the upper deformable member 24 . The curvature may be changed based on the upper end of . When the upper modifying member 24 is formed to have a predetermined thickness, the outer surface of the upper modifying member 24 may be formed as a straight line in cross section, and the first upper deforming member 22 and the second upper deforming member 24 In the process of being connected to each of the members 23, it may be formed in a form in which no corners are formed.

1 to 6 , the mount part 2 may include a first lower deformable member 25 .

The first lower deformable member 25 is disposed below the coupling member 21 . The first lower deformable member 25 may be formed to decrease in size as it extends downward. The outer surface 251 of the first lower deforming member 25 may be formed as an outwardly convex curved surface so that the center of curvature 252 is located inside the mount part 2 . Accordingly, as shown in FIG. 5 , in the case of the comparative example in which the outer surface of the first lower deforming member 13 is formed with a flat inclined surface, both dynamic and static stiffness are increased, but the mounting device 1 of the agricultural work vehicle according to the present invention. ) is the first lower deformable member 25 is formed as an outwardly convex curved surface so that the center of curvature 252 of the outer surface 251 is located inside the mount portion 2, and this form is for agriculture according to the present invention The mounting device 1 of the work vehicle is implemented so as to increase the static rigidity while maintaining the dynamic rigidity of the mounting unit 2 by using the first lower deformable member 25 .

When an external force is applied to the mount part 2 due to an increase in the weight of the cab 120 or the elevation of the vehicle body 110, as shown by a dotted line in FIG. 4, the first lower deformable member 25 may be deformed to be more convex outward along the first axial direction (X-axis direction). Therefore, the mounting device 1 of the agricultural work vehicle according to the present invention can improve the riding comfort of the agricultural work vehicle 100 by increasing the static rigidity by using the first lower deforming member 25, and at the same time By maintaining the rigidity, it is possible to reduce the noise of the cab 120 . In addition, since the mounting device 1 of the agricultural work vehicle according to the present invention can increase durability by using the first lower deformable member 25, it is possible to increase the service life and reduce the maintenance cost.

The first lower deformable member 25 may correspond to a portion of the mount unit 2 disposed below the coupling member 21 . The first lower deforming member 25 may be implemented in an outwardly convex shape so that the center of curvature 252 of the outer surface 251 is located inside the mount part 2 in the overall truncated cone.

1 to 6 , the mount part 2 may include a second lower deformable member 26 .

The second lower deformable member 26 is disposed below the first lower deformable member 25 . The second lower deformable member 26 may be formed to decrease in size as it extends downward. The outer surface 261 of the second lower deformable member 26 may be formed as an outwardly concave curved surface so that the center of curvature 262 is located outside the mount part 2 . Accordingly, the second lower deformable member 26 may be formed in a form to increase both dynamic and static rigidity. In this case, as shown in FIG. 5 , in comparison with the comparative example in which both the second lower deformable member 14 and the first lower deformable member 13 have a flat, inclined surface, the agricultural work vehicle according to the present invention The mounting device 1 has a second lower deformable member 26 formed as an outwardly concave curved surface so that the center of curvature 262 of the outer surface 261 is positioned outside the mount unit 2 and the curvature of the outer surface 251 . By using the combination of the first lower deforming member 25 formed as an outwardly convex curved surface so that the center 252 is located inside the mount part 2, the amount of increase in shin stiffness can be increased while reducing the amount of increase in overall dynamic stiffness. do. Therefore, the mounting apparatus 1 of the agricultural work vehicle according to the present invention can reduce the noise of the cab 120 while improving the riding comfort of the agricultural work vehicle 100 . The second lower deformable member 26 may correspond to a portion of the mount unit 2 disposed below the first lower deformable member 25 . The second lower deformable member 26 may be embodied in an outwardly concave shape such that the center of curvature 262 of the outer surface 251 in the overall truncated cone is positioned outside the mount unit 2 . The second lower deformable member 26 and the first lower deformable member 25 may be integrally formed.

1 to 6 , the mount part 2 may include a lower changing member 27 .

The lower deformable member 27 is disposed between the first lower deformable member 25 and the second lower deformable member 26 . The lower deformable member 27 may be disposed at a lower end of the first lower deformable member 25 and at an upper end of the second lower deformable member 26 . The lower deformable member 27 may correspond to a portion of the mount unit 2 disposed between the first lower deformable member 25 and the second lower deformable member 26 . The lower deformable member 27 , the first lower deformable member 25 , and the second lower deformable member 26 may be integrally formed.

The curvature of the first lower deformable member 25 and the second lower deformable member 26 may be changed based on the lower deformable member 27 . The lower deformable member 27 may be formed in a shape in which an edge is formed while the curvature is changed between the first lower deformable member 25 and the second lower deformable member 26 .

As shown in FIG. 3 , the lower changing member 27 may be formed at any one point. As shown in FIG. 6 , the lower changing member 27 may be formed to have a predetermined thickness. In this case, the curvature of the first lower deformable member 25 may be changed based on the upper end of the lower deformable member 27 , and the second lower deformable member 26 may be the lower deformable member 27 . The curvature may be changed with respect to the lower end of the . When the lower modifying member 27 is formed to have a predetermined thickness, the outer surface of the lower modifying member 27 may be formed as a straight line in cross-section, and an upper end portion connected to the first lower deforming member 25 and At least one of the lower portions connected to the second lower deformable member 26 may be formed in a form in which an edge is formed.

Meanwhile, the outer surface 251 of the first lower deformable member 25 and the outer surface 221 of the first upper deformable member 22 may have different curvatures. When the cab 120 is coupled to the mounting device 1 of the agricultural work vehicle according to the present invention, the overall shape of the mount unit 2 may be deformed. In this case, an upper portion of the mount portion 2 and a lower portion of the mount portion 2 may be deformed into different shapes with respect to the coupling member 21 . More specifically, since the cab 120 is coupled to the inside of the center of the mount part 2 , the upper part of the mount part 2 is moved in the second axial direction (Y) due to the load of the cab 120 . It is mainly deformed in a compressed form based on the axial direction), and the lower portion of the mount part 2 may be mainly deformed in a form that is tensioned based on the second axial direction (Y-axis direction). The second axial direction (Y-axis direction) and the first axial direction (X-axis direction) are axial directions arranged perpendicular to each other. The second axial direction (Y-axis direction) may be an axial direction parallel to the vertical direction.

Accordingly, it may be advantageous that the upper portion of the mount unit 2 has a relatively large volume compared to the lower portion of the mount unit 2 . In addition, the upper portion of the mount portion 2 may be advantageously formed to have a relatively high height compared to the lower portion of the mount portion 2 . Accordingly, the outer surface 221 of the first upper deformable member 22 of the upper portion of the mount portion 2 is the outer surface of the first lower deformable member 25 of the lower portion of the mount portion 2 ( 251), since it is formed with a relatively small curvature, it can be implemented to be curved more gently.

Through the above configuration, the mounting device 1 of the agricultural work vehicle according to the present invention is implemented to increase the shin stiffness while maintaining the dynamic rigidity of the mount part 2 . Therefore, the mounting device 1 of the agricultural work vehicle according to the present invention can improve the riding comfort of the agricultural work vehicle 100 by increasing the static rigidity, and at the same time maintain the dynamic rigidity to reduce the noise of the cab 120 . can be reduced

As described above, the lower portion of the mount part 2 may include the first lower deformable member 25 , the lower deformable member 27 , and the second lower deformable member 26 . An upper portion of the mount part 2 may include the first upper deformable member 22 , the upper deformable member 24 , and the second upper deformable member 23 .

1 to 4 , 7 , and 8 , the support part 3 is supported by the vehicle body 110 . The support part 3 may be coupled to the mount part 2 . Accordingly, the support part 3 can support the mount part 2 using the support force supported by the vehicle body 110 , and support the cab 120 through the mount part 2 . can The support part 3 may be coupled to the mount part 2 by being coupled to the coupling member 21 . In this case, the support part 3 is inserted into the coupling groove 211 disposed between the first upper deformable member 22 and the first lower deformable member 25 , so that the mount part 2 is attached to the support part 2 . can be combined. The support part 3 may be formed in a rectangular plate shape as a whole, but is not limited thereto, and if it is supported by the vehicle body 110 to support the mount part 2, it may be formed in another shape such as a disk shape. . The support part 3 may be formed of a metal. A through hole 30 (shown in FIG. 2 ) into which the coupling member 21 can be inserted may be formed in the support part 3 . The through hole 30 may be formed to pass through the support part 3 in the second axial direction (Y-axis direction).

The support part 3 may include a support member 31 and a locking member 32 .

The support member 31 is connected to each of the vehicle body 110 and the mount unit 2 . One side of the support member 31 may be connected to the vehicle body 110 , and the other side may be disposed inside the mount unit 2 . The other side of the support member 31 may be inserted into the coupling groove 211 . The through hole 30 may be formed to pass through both the support member 31 and the locking member 32 .

The locking member 32 protrudes from the other side of the support member 31 . The engaging member 32 may be disposed inside the mount unit 2 . Accordingly, the support part 3 is supported by the mount part 2 in the inside of the mount part 2, so that the support part 3 is attached to the mount part 2 and the support part 3, respectively. By increasing the contact area with respect to it, it can be prevented from being separated from the mount part 2 arbitrarily due to vibration, shaking, impact, or the like.

Meanwhile, as shown in FIGS. 7 and 8 , the coupling member 21 may include a cover member 212 . The cover member 212 may be disposed to cover the outer surface 321 of the locking member 32 to support the locking member 32 . Accordingly, the cover member 212 can prevent the locking member 32 from being arbitrarily separated from the inside of the mount part 2 . In addition, the mounting apparatus 1 of the agricultural work vehicle according to the present invention uses the cover member 212 and the engaging member 32 to further increase the contact area between the mount part 2 and the support part 3 . Therefore, the coupling force between the mount part 2 and the support part 3 can be strengthened. Therefore, the mounting apparatus 1 of the agricultural work vehicle according to the present invention can prevent peeling or the like from occurring in the mount part 2, thereby reducing maintenance costs. The outer surface 321 of the locking member 32 is a surface of the locking member 32 facing the outside of the mount part 2 . The locking member 32 may protrude downward from the other side of the support member 31 .

The engaging member 32 may be formed to have a greater thickness than the support member 31 . In this case, the thickness (32T, shown in FIG. 8) of the locking member 32 may be implemented to be thicker than the thickness (31T, shown in FIG. 8) of the support member 31 . Accordingly, the mounting device 1 of the agricultural work vehicle according to the present invention can further increase the contact area between the mount part 2 and the support part 3, and thus the mount part 2 and the support part 3 ) can further strengthen the bond between them. Therefore, the mounting device 1 of the agricultural work vehicle according to the present invention can further strengthen the preventive force for preventing the support 3 from being arbitrarily separated from the mount 2, as well as the mounting unit 2 ), it is possible to further strengthen the preventive power to prevent peeling, etc. from occurring. In addition, in the mounting device 1 of the agricultural work vehicle according to the present invention, the locking member 32 is implemented to be thicker, so that the vibration generated in the vehicle body 110 passes through the support part 3 to the mount part ( 2) can reduce the amount of delivery delivered.

At least one of an upper portion 322a (shown in FIG. 8) and a lower portion 322b (shown in FIG. 8) of the inner surface 322 of the locking member 32 may be formed to have a curved surface. . The inner surface 322 of the locking member 32 is a surface of the locking member 32 facing the inner side of the mount part 2 . At least one of the upper part 322a and the lower part 322b of the inner surface 322 of the engaging member 32 is formed in a curved surface, so that the mounting device 1 of the agricultural work vehicle according to the present invention is the mount part 2 ) can further reduce the dynamic stiffness. Therefore, the mounting device 1 of the agricultural work vehicle according to the present invention can further reduce the noise of the cab 120 . 8 shows that both the upper portion 322a and the lower portion 322b of the inner surface 322 of the locking member 32 are formed in a curved surface, but the upper portion of the inner surface 322 of the locking member 32 is Any one of the 322a and the lower 322b may be formed as a curved surface.

1 to 3 , the mounting device 1 of the agricultural work vehicle according to the present invention may include a connection part 4 .

The connection part 4 (shown in FIG. 3 ) is inserted into the mount part 2 . The connection part 4 may be inserted into the mount part 2 so as to penetrate the upper part of the mount part 2 and the lower part of the mount part 2 . A mounting hole 41 (shown in FIG. 3 ) may be formed in the connection part 4 . A mounting part (not shown) coupled to the cab 120 may be inserted into the mounting hole 41 . As the mounting part is inserted into the mounting hole 41 and coupled to the connection part 4 , the cab 120 may be mounted on the mounting part 2 . The mounting hole 41 may be formed to pass through the connection part 4 in the second axial direction (Y-axis direction). The mounting part may be fixed to the connection part 4 by being screwed through a nut or the like after being inserted into the mounting hole 41 . Although not shown, a washer may be coupled to an upper side of the connecting unit 4 and a lower side of the connecting unit 4 . The connection part 4 may be fixedly coupled to the mount part 2 through bonding or the like.

On the other hand, since the outer surfaces 221 and 215 of each of the first upper deformable member 22 and the first lower deformable member 25 are formed as outwardly convex curved surfaces, the mounting apparatus 1 of the agricultural work vehicle according to the present invention ) may increase the distance between the inner surface 322 of the engaging member 32 and the outer surface of the connecting part 4 based on the first axial direction (X-axis direction). Accordingly, the mounting apparatus 1 of the agricultural work vehicle according to the present invention further reduces the dynamic rigidity of the mount part 2 , thereby further reducing the noise of the cab 120 .

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention. It will be clear to those who have the knowledge of

Claims

A mounting device that supports the cab of an agricultural work vehicle,

A support part supported by the vehicle body of the agricultural work vehicle; and

It is elastically deformed according to the weight of the cab, and includes a mount part to which the support part and each of the cab are coupled,

The mount part includes a coupling member to which the support part is coupled, and a first upper deformable member disposed on the upper side of the coupling member to decrease in size as it extends upward,

The outer surface of the first upper deforming member is a mounting device for an agricultural work vehicle, characterized in that the outer surface is formed as a convex curved surface so that the center of curvature is located inside the mount portion.
According to claim 1,

The mount portion includes a second upper deformable member disposed on the upper side of the first upper deformable member and formed to decrease in size as it extends upward,

The outer surface of the second upper deforming member is a mounting device for an agricultural work vehicle, characterized in that formed in an outwardly concave curved surface so that the center of curvature is located outside the mount portion.
According to claim 1,

The mount portion is disposed on the upper side of the first upper deformable member, the second upper deformable member is formed to decrease in size as it extends upward, and an upper change disposed between the first upper deformable member and the second upper deformable member including absence,

The first upper deformable member and the second upper deformable member is a mounting device for an agricultural work vehicle, characterized in that the curvature is changed based on the upper changing member.
According to claim 1,

The mount portion is disposed on the upper side of the first upper deformable member, the second upper deformable member is formed to decrease in size as it extends upward, and an upper change disposed between the first upper deformable member and the second upper deformable member including absence,

The curvature of the first upper deformable member is changed based on the lower end of the upper deformable member,

The second upper deforming member is a mounting device for an agricultural work vehicle, characterized in that the curvature is changed based on the upper end of the upper changing member.
According to claim 1,

The mount portion includes a first lower deformable member disposed on the lower side of the coupling member and formed to decrease in size as it extends downward,

The outer surface of the first lower deformable member is a mounting device for an agricultural work vehicle, characterized in that formed in an outwardly convex curved surface so that the center of curvature is located inside the mount portion.
6. The method of claim 5,

The mounting apparatus of the agricultural work vehicle, characterized in that the outer surface of the first lower deformable member and the outer surface of the first upper deformable member are formed to have different curvatures.
6. The method of claim 5,

The mount portion includes a second lower deformable member disposed below the first lower deformable member and formed to decrease in size as it extends downward,

The outer surface of the second lower deforming member is a mounting device for an agricultural work vehicle, characterized in that the curved surface is concave outwardly so that the center of curvature is located outside the mount portion.
6. The method of claim 5,

The mount portion is disposed below the first lower deformable member and is formed to decrease in size as it extends downward, and a lower change disposed between the first lower deformable member and the second lower deformable member. including absence,

The first lower deformable member and the second lower deformable member is a mounting device for an agricultural work vehicle, characterized in that the curvature is changed based on the lower changing member.
6. The method of claim 5,

The mount portion is disposed below the first lower deformable member and is formed to decrease in size as it extends downward, and a lower change disposed between the first lower deformable member and the second lower deformable member. including absence,

The curvature of the first lower deformable member is changed based on the upper end of the lower deformable member,

The second lower deformable member is a mounting device for an agricultural work vehicle, characterized in that the curvature is changed based on the lower end of the lower modifying member.
The method of claim 1,

and a connection part inserted into the mount part so as to penetrate the upper part of the mount part and the lower part of the mount part,

A mounting device for an agricultural work vehicle, characterized in that the connection part is formed with a mounting hole for inserting the mounting unit coupled to the cab.
6. The method of claim 5,

The mount portion includes a coupling groove disposed between the first upper deformable member and the first lower deformable member,

The support part is inserted into the coupling groove, the mounting device of the agricultural work vehicle, characterized in that coupled to the mount part.
The method of claim 1,

The support part includes a support member having one side connected to the vehicle body and the other side disposed inside the mount part, and a locking member protruding from the other side of the support member,

The locking member includes an outer surface facing the outside of the mount,

The coupling member is disposed so as to cover the outer surface of the locking member, the mounting apparatus of the agricultural work vehicle, characterized in that it comprises a cover member for supporting the locking member.
The method of claim 1,

The support part includes a support member having one side connected to the vehicle body and the other side disposed inside the mount part, and a locking member protruding from the other side of the support member,

The engaging member is a mounting device for an agricultural work vehicle, characterized in that formed to a greater thickness than the support member.
The method of claim 1,

The support part includes a support member having one side connected to the vehicle body and the other side disposed inside the mount part, and a locking member protruding from the other side of the support member,

The engaging member includes an inner surface facing the inner side of the mount portion,

At least one of an upper portion and a lower portion of the inner surface of the locking member is formed as a curved surface.