JP2000037123A - Reaping height adjusting mechanism in combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reaping height adjusting mechanism capable of solving an issue of a difficulty of adjusting at a constant height and having a high scattering, since in a conventional combine, the leaping height adjusting switch is attached at a main transmission lever and sometimes an erroneous operation such as lifting the reaping part up and down unintentionally by touching a finger to the reaping height adjusting switch during the operation of the main transmission lever occurs, and in the case of performing the adjustment of the reaping height, the reaping height after the adjustment is grasped only by an intuition and an experience. SOLUTION: This reaping height adjusting device in a combine is provided by mounting a reaping height adjusting switch 31 capable of adjusting the reaping height optionally by lifting a reaping part up and down with a hand operation at the gripping part 17a of a steering handle 17, and arranging a reaping height displaying meter 32 for displaying the reaping height in an almost middle part of a steering wheel 17 or on an instrument panel 16 in the front direction of the steering handle 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting height adjusting mechanism for a combine which is capable of performing a steering operation with a rotary handle to adjust a cutting height.

[0002]

2. Description of the Related Art Conventionally, in a combine traveling by a crawler type traveling device, an operating unit is disposed on one of the left and right sides of a front part of a fuselage, and a mowing unit is provided in a front side of the operating unit.
The culm harvested in the reaping unit is transported to a threshing device behind the reaping unit, and the sorted straw is discharged from the rear of the machine body, and the reaping unit can be moved up and down to adjust the cutting height. Things are known. In the driving section of such a combine,
A rotary handle as a steering operation tool is arranged in front of the driver's seat, and levers such as a main shift lever and an auxiliary shift lever, and various switches are collectively arranged on the side. The shift lever is equipped with frequently operated switches such as a cutting height adjustment switch that manually adjusts the sawing depth so that the cutting height can be adjusted while holding the main shift lever. And improved the operability.

[0003]

However, as described above,
When a cutting height adjustment switch or the like is attached to the main transmission lever, for example, when the main transmission lever is tilted in the forward direction, a force is applied to a finger, and the cutting height adjustment is performed during operation of the main transmission lever. In some cases, an erroneous operation may occur such that a finger touches the switch and the cutting unit is unintentionally moved up and down to change the cutting height. Also, when adjusting the cutting height with the cutting height adjustment switch, the adjusted cutting height could not be directly checked with the eyes, so the intuition and experience were used to grasp the adjusted cutting height. It was only difficult to adjust the height to a certain level, and the variation was large.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in the first aspect of the present invention, in a combine configured to perform a steering operation by a rotary handle and adjust a cutting height, the cutting unit is manually moved up and down to adjust a cutting height arbitrarily. A cutting height adjustment switch was attached to the grip of the rotary handle, and a display for displaying the cutting height was arranged at a substantially central portion of the rotary handle.

According to a second aspect of the present invention, in a combine constructed so that a steering operation is performed by a rotary handle and a cutting height is adjustable, a cutting section is manually moved up and down to adjust a cutting height arbitrarily. A possible cutting height adjustment switch was attached to the grip of the rotary handle, and an indicator for displaying the cutting height was arranged on an instrument panel disposed at the end of the rotary handle.

According to a third aspect of the present invention, in a combine configured to perform a steering operation with a rotary handle and to adjust a cutting height, the cutting section is manually moved up and down to adjust the cutting height arbitrarily. A cutting height adjustment switch to be enabled is attached to the grip portion of the rotary handle, and a display for indicating the cutting height is arranged at a substantially central portion of the rotary handle or at the front of the rotary handle. Arranged on the instrument panel, the cutting height adjustment switch is configured as a two-stage switch, and can be adjusted to an arbitrary cutting height by turning on the first stage switch of the cutting height adjustment switch, By turning on the second-stage switch, the mowing unit is configured to move up and down to a preset cutting height.

According to a fourth aspect of the present invention, in a combine configured to perform a steering operation with a rotary handle and to adjust a cutting height, the cutting section is manually moved up and down to adjust the cutting height arbitrarily. A cutting height adjustment switch to be enabled is attached to the grip portion of the rotary handle, and a display for indicating the cutting height is arranged at a substantially central portion of the rotary handle or at the front of the rotary handle. A reset switch is provided near the cutting height adjustment switch, and when the switch is turned on, the cutting unit moves up and down to a preset cutting height.

According to a fifth aspect of the present invention, in a combine configured to perform a steering operation with a rotary handle to adjust a cutting height, the cutting section is manually moved up and down to adjust the cutting height arbitrarily. A cutting height adjustment switch to be enabled is attached to the grip portion of the rotary handle, and a display for indicating the cutting height is arranged at a substantially central portion of the rotary handle or at the front of the rotary handle. The cutting height adjustment switch is arranged on the instrument panel, and the cutting unit is moved up and down only while being turned on.

[0009]

Next, an embodiment of the present invention will be described. FIG. 1 is an overall side view showing a combine having a cutting height adjusting mechanism of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a side view showing a front part of the fuselage, and FIG. FIG. 5 is a diagram showing the operation state of the cutting height adjustment switch attached to the steering handle in the downward direction, FIG. 6 is a diagram showing the operation state of the cutting height adjustment switch in the upward direction, and FIG. FIG. 8 is a plan view showing another embodiment of the cutting height adjustment switch attached to the steering handle. FIG. 8 is a plan view showing an example in which a cutting height display meter is provided on an instrument panel located at the front of the steering handle. 9 is a diagram illustrating an operation state of the cutting height adjustment switch attached to the steering handle in FIG. 8 in a descending direction, and FIG. 10 is a diagram illustrating an operation state of the cutting height adjustment switch in FIG. 8 in an ascending direction. Fig. 11 shows the uppermost step Perspective view showing a state in which close the single plate, FIG. 12 is a perspective view similarly showing an open state of the foot plate.

First, the overall structure of a combine having a cutting height adjusting mechanism according to the present invention will be described with reference to FIGS. The frame 11 is mounted on the crawler-type traveling device 29, and the frame 11 has a threshing unit 27 on one of the left and right sides.
And a sorting unit, a grain tank 23 for storing grains on the other side.
Is placed. An operation unit 10 is disposed in front of the Glen tank 23, and is a lateral front of the operation unit 10 and
A cutting unit 26 is provided in front of the threshing unit 27, and the cutting unit 26 is located at the forefront of the body.

Then, the grain stalks cut by the cutting section 26 are transferred to the threshing section 27 by the respective grain stalk transport devices of the cutting section 26.
It is configured to be conveyed toward the side feed chain 7, to be nipped by the feed chain 7, and to be transported rearward by the handling cylinder 8 to remove particles. The remaining waste that has been threshed is passed from the rear end of the feed chain 7 to the waste processing unit 9 at the rear of the machine body, cut by the straw processing unit 9, and then discharged to the field.

A mounting table (not shown) for rotatably connecting the reaping section 26 is formed at the front of the frame 11 located on the side of the operating section 10, and each transport of the reaping section 26 is provided above the mounting table. A pivoting base 12 at the rear of the mowing frame that supports the device is pivotally supported. A cutting and lifting cylinder 30 is interposed between the front portion of the frame 11 and a middle portion of the vertical frame 13 that constitutes the cutting frame. 26 (vertical frame 13) is raised and lowered about the rotation base 12 to adjust the cutting height.

The operating unit 10 includes, for example, a cabin 18
In the cabin 18, a driver's seat 12 is installed on a driver's cab 19, and a front column 14 stands upright in front of the driver's seat 12. A handle shaft 17a protrudes upward from the front column 14, and a rotary steering handle 17 configured as a round handle is integrally supported on the upper end of the handle shaft 17a. An instrument panel 16 on which various meters and the like are arranged is attached. A side column 15 is disposed on the side of the driver's seat 12, and a main transmission lever 21 and an auxiliary transmission lever 22 are provided on the side column 15.
And various operation switches. On the side of the fuselage on which the operating unit 10 is disposed (in this example, on the right side in the traveling direction), a step-forming step 6 is formed below the operating unit 10 in a stepwise manner. And getting on and off the driving unit 10 are facilitated.

Next, the cutting height adjusting mechanism will be described. As described above, the mowing section 26 is configured to be moved up and down by the expansion and contraction operation of the mowing elevating cylinder 30, thereby adjusting the mowing height. Then, for example, an automatic lift switch that automatically raises the cutting unit 26 to the upper end at the end of cutting or the like, or automatically lowers the cutting unit 26 to a preset position at the start of cutting, so that the cutting height An automatic set switch or the like for adjusting the cutting height to the automatic cutting height setting position is attached to the main shift lever 21 so as to automatically adjust the cutting height.

As shown in FIG. 4, a cutting height adjustment switch 31 for appropriately adjusting the cutting height by manual operation is provided.
The mowing lift cylinder 30 is attached to the steering handle 17 and is operated by operating the mowing height adjusting switch 31 so that the mowing unit 30 is moved up and down by manual operation. . The cutting height adjusting switch 31 is provided with handle frames 17c, 17c,.
Handshaking portion 17 supported by the handle shaft 17a through
b, the front side (the lower side in FIG. 4)
In addition, it can be turned to the hand side (upper side in FIG. 4).

As shown in FIG. 5, for example, the cutting height adjustment switch 31 is normally in the neutral position N, and in this state, the cutting unit 26 holds a constant cutting height. When the switch 31 is rotated from the neutral position N to the lower side (lower side in FIG. 5) to the lowering operation position D, the reaper 26 is configured to lower. The cutting height adjustment switch 31 is attached to the handshake portion 17b of the steering handle 17 and is constituted by a toggle switch or the like. Therefore, the cutting height adjustment switch 31 can be easily turned with a fingertip while holding the handshake portion 17b. It is possible.

The height adjustment switch 31 is turned on only while the lowering operation position D is being rotated to the near side, and the reaper 26 is lowered. Returning to the position N, the cutting unit 26 stops. Therefore, when lowering the cutting unit 26 to a certain cutting height, the height adjustment switch 31 is rotated to the lowering operation position D to lower the cutting unit 26, and the cutting unit 26 is moved to the target cutting height. When reaching the height, the reaper 26 may be stopped by releasing the hand from the height adjustment switch 31.

The height adjustment switch 31 is a two-stage switch, and can be turned further to the near side than the state where it has been turned to the lowering operation position D, that is, to the reset position R1. . When the height adjustment switch 31 is rotated to the reset position R1, the reaping unit 2 is turned on.
6 is configured to automatically ascend or descend to the automatic cutting height setting position, for example. In this case, once the height adjustment switch 31 is rotated to the reset position R1, the reaping unit 26 starts to move up or down, and then the hand is released from the height adjustment switch 31 and the height adjustment switch 31 is turned off. Even if it returns to the neutral position N, the reaping part 26 is automatically raised or lowered until it reaches the automatic cutting height setting position.

That is, when the height adjustment switch 31 is set to the neutral position N
When the first-stage switch is turned on by turning to the lower operation position D from the front to the lower operation position D, the reaper 26 is lowered only while the switch is on, and the height adjustment switch 31 is moved to the front position to the reset position R1. When the switch of the second stage is turned on by rotating the cutting section 26, the cutting section 26 moves up or down to a preset automatic cutting height setting position. In order to turn on the second-stage switch, the height adjustment switch 31 may be rotated from the lowering operation position D to the reset position R1, or from the neutral position N to the reset position R at once.
It may be rotated to one. In addition, height adjustment switch 3
1 is required to rotate to the reset position R1 in order to require a greater operating force than to rotate to the lowering operation position D. Reset position R
It is possible to prevent an erroneous operation such as rotating operation to one.

On the other hand, as shown in FIG. 6, for example, when the height adjusting switch 31 is rotated from the neutral position N to the hand side (upward in FIG. 6) to the raising operation position U, the reaper 26
Is configured to rise. In this case, the height adjustment switch 31 is turned on only while the turning operation is performed to the hand side to the ascending operation position U, and the reaping unit 26 moves up,
When the hand is released from the height adjustment switch 31, it returns to the neutral position N, and the reaping unit 26 stops. Therefore, when raising the mowing part 26 to a certain mowing height, the height adjusting switch 3
1 is turned to the raising operation position U to raise the reaping unit 26, and when the reaping unit 26 reaches the target cutting height, the hand is released from the height adjustment switch 31 to stop the reaping unit 26. Just do it.

The height adjusting switch 31 is also a two-stage switch for rotating in the direction of the hand.
The turning operation can be performed further to the hand side than the state where the turning operation is performed to the ascending operation position U, that is, to the reset position R2. Then, the height adjustment switch 31 is moved to the reset position R.
When the rotary operation is performed up to 2, the mowing unit 26 is configured to automatically move up or down to, for example, the automatic mowing height setting position. In this case, once the height adjustment switch 31 is operated to rotate to the reset position R2, the reaping unit 26 starts ascending or descending. Thereafter, the hand is released from the height adjustment switch 31 and the height adjustment switch 31 is moved. Even after returning to the neutral position N, the reaping unit 26 reaches the automatic cutting height set position.
Is automatically raised or lowered.

That is, when the height adjustment switch 31 is set to the neutral position N
When the first-stage switch is turned on by turning to the ascending operation position U to the hand side and the first-stage switch is turned on, the reaper 26 rises only while the switch is on, and the height adjustment switch 31 is moved to the reset position R2 on the hand side. When the switch of the second stage is turned on by rotating the cutting section 26, the cutting section 26 moves up or down to a preset automatic cutting height setting position. In order to turn on the second-stage switch, the height adjustment switch 31 may be rotated from the ascending operation position U to the reset position R2, or from the neutral position N to the reset position R at once.
It may be rotated up to 2. In addition, height adjustment switch 3
1 is required to rotate to the reset position R2, a larger operating force is required than to rotate to the ascending operation position U. Reset position R
It is possible to prevent an erroneous operation such as rotating operation to two. Further, in the present embodiment, the height adjustment switch 31 is configured to be rotatable toward the near side and the near side, but may be configured to be rotatably operated in other directions such as a vertical direction.

As described above, by attaching the height adjustment switch 31 to the steering handle 17 and manually adjusting the cutting height, the conventional main transmission which is frequently operated during operation as in the prior art. It is possible to prevent an erroneous operation such as a finger suddenly touching the cutting height adjustment switch during operation of the lever 21 and unintentionally raising and lowering the cutting unit to change the cutting height, and smooth cutting. Work can be performed.
Further, since the height adjustment switch 31 is attached to the handshake portion 17b of the steering handle 17, good operability can be obtained. Further, by configuring the height adjustment switch 31 as a two-stage switch as described above, the cutting unit 26 adjusted to an arbitrary cutting height by manual operation is automatically raised or lowered, and the automatic cutting height setting is immediately performed. It is possible to return to the position. And the cutting height adjustment switch 31
Is configured so that the mowing unit 26 moves up and down only during the ON operation.
When the cutting unit 26 is turned on in the direction in which the cutting unit 26 moves upward, the cutting / elevating cylinder 30 extends only during that time, so that the cutting unit 26 rises. 30 is reduced and the reaper 2
When the hand 6 is lowered and the hand is released from the cutting height adjustment switch 31, it returns to the off state, and the raising and lowering of the cutting unit 26 is stopped. The state is maintained, and it is possible to prevent erroneous operations such as the reaping unit 26 being too high or too low, and to simplify the operation of adjusting the cutting height.

Also, as shown in FIG.
A cutting height display meter 32, which is a display for displaying the cutting height, is provided substantially at the center of the. The cutting height display meter 3
2 is constituted by, for example, a graphic display by a liquid crystal or an LED, a tachometer, a numerical display, or the like, and configured to display the cutting height stepwise or continuously in a range from the lowest position to the highest position. When the cutting height changes, the display on the display meter 32 also changes in accordance with the change.

Thus, by providing the cutting height display meter 32 for displaying the cutting height, the cutting height during the cutting operation can be recognized at any time, and the cutting operation is performed at a constant cutting height. Can be confirmed and stable work can be continued with confidence. Also, when manually adjusting the cutting height with the cutting height adjustment switch 31,
Since the cutting height can be adjusted while checking the cutting height with the cutting height display meter 32, the cutting height can be reliably adjusted to the target, and the cutting height can be adjusted to a constant value.
As a result, a uniform reaping operation can be performed, and it is possible to improve the operation quality. Further, since the cutting height display meter 32 is disposed substantially at the center of the steering handle 17, it is possible to check the cutting height with almost no movement of the line of sight during the driving operation, so that the cutting height can be checked smoothly. The driving operation is not impaired.

Next, another embodiment of a cutting height adjusting switch for manually adjusting the cutting height will be described. As shown in FIG. 7, the cutting height adjustment switch 36 is normally in the neutral position. In this state, the cutting unit 26 maintains a constant cutting height, and the height adjustment switch 3 is moved to the neutral position. The cutting unit 26 is configured to move down from the neutral position to the near side (lower side in FIG. 7), and to be moved upward from the neutral position to the hand side (upper side in FIG. 7). .

Then, the height adjusting switch 36 is turned on only while being rotated to the front side and while being rotated to the hand side, and the reaper 26 is lowered and raised. When the hand is released from the height adjustment switch 36, the reaping unit 26 returns to the neutral position and stops.
Therefore, when lowering or raising the cutting unit 26 to a certain cutting height, the height adjustment switch 36 is rotated to the near side or the front side to lower or raise the cutting unit 26, It is sufficient to release the hand from the height adjustment switch 36 to stop the reaper 26 when the reaper 26 reaches the target cutting height. The cutting height adjustment switch 36 is connected to the steering handle 17.
And a toggle switch or the like, so that the user can easily turn with a fingertip while holding the handshake portion 17b.

A reset switch 37 is attached to the steering handle 17 in the vicinity of the cutting height adjusting switch 36. By pressing the reset switch 37, the cutting height adjusting switch 36 allows the reset switch 37 to be arbitrarily set. The cutting section 26 adjusted to the cutting height is moved up or down to the automatic cutting height setting position.

As described above, by attaching the height adjustment switch 36 to the steering handle 17 and manually adjusting the cutting height, the height adjustment switch 3 is used.
In the same manner as in the case where 1 is provided, it is possible to prevent an erroneous operation in which the cutting unit is unintentionally moved up and down and the cutting height is changed, and the cutting operation can be performed smoothly. The height adjustment switch 36 is connected to the steering wheel 1.
Since it is attached to the handshake portion 17b of 7, it is possible to obtain good operability. In addition, a height adjustment switch 3
By mounting the reset switch 37 near the cutting section 6, the cutting section 26 adjusted to an arbitrary cutting height by manual operation can be automatically raised or lowered and immediately returned to the automatic cutting height setting position. .

Next, an example in which the cutting height indicating meter 32 is disposed on the instrument panel 16 will be described. In FIG. 8, a handle shaft 57a projects upward from the front column 14, and the handle shaft 57a
A handshake portion 57b is supported via handle frames 57c, 57c,. The steering handle 57 is formed in a shape in which a front side and a front side of a round handle are cut out, and thus, a space under a foot of an operator sitting in the driver's seat 12 is widened and a front view is widened. Thus, various meters on the instrument panel 16 are configured to be easily viewed.
The cutting height display meter 32 for displaying the cutting height is disposed on the instrument panel 16. By arranging the cutting height display meter 32 on the instrument panel 16 disposed in front of the steering handle 57, it is possible to confirm the cutting height with almost no movement of the line of sight during driving. Further, since the cutting height is always displayed at a fixed position and angle, it is easy to confirm the cutting height, and a smooth driving operation is not spoiled. It should be noted that the cutting height indicating meter 32 is provided substantially at the center of the steering handle 57.
It is also possible to arrange the cutting height indicating meter 32 on the instrument panel 16 when the steering operation tool is configured on the steering handle 17 as described above. . And the cutting height display meter 32
If it is arranged within the range of the field of view of the operator during the driving operation, it is possible to easily check the cutting height with little movement of the line of sight. .

In this embodiment, the steering handle 5
A cutting height adjustment switch 61 for appropriately adjusting the cutting height by manual operation is attached to the handshake portion 57b of No. 7, and the cutting height adjustment switch 61 is operated to raise the cutting unit 26 manually. And descending. The cutting height adjusting switch 61 is configured to be rotatable in the left-right direction, for example, and can be easily rotated with a fingertip or the like while holding the handshake portion 57b.

Then, as shown in FIG. 9, for example, the cutting height adjustment switch 61 is normally in the neutral position N, and in this state, the cutting unit 26 maintains a constant cutting height. When the switch 61 is rotated from the neutral position N to the lowering operation position D, for example, inward of the steering handle 57 (to the left in FIG. 9), the reaper 26 is configured to lower.

The height adjustment switch 61 is turned on only while being rotated leftward to the lowering operation position D, and the reaper 26 is lowered. When the hand is released from the height adjustment switch 61, the neutral position is reached. The cutting unit 26 is configured to stop after returning to N. Therefore, when the cutting unit 26 is lowered to a certain cutting height, the height adjustment switch 61 is turned to the lowering operation position D by rotating the height adjusting switch 61. The cutting unit 26 is lowered, and when the cutting unit 26 reaches the target cutting height, the height adjustment switch 6
The reaper 26 may be stopped by releasing the hand from 1.

The height adjustment switch 61 is a two-stage switch, and can be further rotated leftward from the state in which it has been rotated to the lowering operation position D, that is, can be rotated to the reset position R1. And the height adjustment switch 6
1 is rotated to the reset position R1, the reaper 26
However, for example, it is configured to automatically ascend or descend to the automatic cutting height setting position. In this case, once the height adjustment switch 61 is turned to the reset position R1, the reaper 26 starts to move up or down, and then releases the hand from the height adjustment switch 61 to turn the height adjustment switch 61 on. Even if it returns to the neutral position N, the reaping part 26 is automatically raised or lowered until it reaches the automatic cutting height setting position.

That is, when the height adjustment switch 61 is set to the neutral position N
When the first-stage switch is turned on by turning to the left from the operation position D to the lowering operation position D, the reaper 26 is lowered only while the switch is on, and the height adjustment switch 61 is turned to the left to the reset position R1. When the switch of the second stage is turned on by a dynamic operation, the reaping unit 26 moves up or down to a preset automatic cutting height setting position. In order to turn on the second-stage switch, the height adjustment switch 6 is required.
1 may be turned from the lowering operation position D to the reset position R1, or may be turned from the neutral position N to the reset position R1 at once. In addition, since the rotating operation of the height adjustment switch 61 to the reset position R1 requires a larger operation force than the rotating operation to the lowering operation position D, for example, the lowering operation position D In the case where the rotation operation is attempted to be performed to, an erroneous operation such as an erroneous rotation operation to the reset position R1 can be prevented.

On the other hand, as shown in FIG. 10, for example, when the height adjusting switch 61 is rotated from the neutral position N to the outside of the steering handle 57 (to the right in FIG. 10) to the ascending operation position U, the cutting section 26 is configured to rise. In this case, the height adjustment switch 61 is turned on only while being rotated to the right to the ascending operation position U, and the reaper 26 rises. When the hand is released from the height adjustment switch 61, the neutral position is reached. Since the mowing unit 26 is configured to stop after returning to N, when the mowing unit 26 is raised to a certain cutting height, the height adjusting switch 61 is turned to the raising operation position U to rotate. The cutting unit 26 may be raised, and when the cutting unit 26 reaches the target cutting height, the hand may be released from the height adjustment switch 61 to stop the cutting unit 26.

The height adjusting switch 61 is also a two-stage switch when it is turned to the right.
It is possible to further pivot to the right side of the state where the pivot operation has been performed to the ascending operation position U, that is, to the reset position R2. Then, the height adjustment switch 61 is moved to the reset position R.
When the rotary operation is performed up to 2, the mowing unit 26 is configured to automatically move up or down to, for example, the automatic mowing height setting position. In this case, once the height adjustment switch 61 is rotated to the reset position R2, the reaper 26 starts to move up or down, and then releases the hand from the height adjustment switch 61 so that the height adjustment switch 61 is released. Even after returning to the neutral position N, the reaping unit 26 reaches the automatic cutting height set position.
Is automatically raised or lowered.

That is, the height adjustment switch 61 is set to the neutral position N
When the first stage switch is turned on by turning to the right to the ascending operation position U and the first stage switch is turned on, the reaper 26 rises only while the switch is being turned on, and the height adjustment switch 61 is turned to the right to the reset position R2. When the switch of the second stage is turned on by a dynamic operation, the reaping unit 26 moves up or down to a preset automatic cutting height setting position. In order to turn on the second-stage switch, the height adjustment switch 6 is required.
1 may be rotated from the raising operation position U to the reset position R2, or may be rotated from the neutral position N to the reset position R2 at once. Further, since the rotating operation of the height adjustment switch 61 to the reset position R2 requires a larger operating force than the rotating operation to the ascending operation position U, for example, the lowering operation position U In the case where the rotation operation is attempted to be performed to the reset position R2, an erroneous operation such as an erroneous operation can be prevented.

As described above, by attaching the height adjustment switch 61 to the steering handle 57 and manually adjusting the cutting height, the height adjustment switch 31 is attached to the steering handle 17 described above. As in the case of the mounting, it is possible to prevent the occurrence of an erroneous operation such as the cutting section being unintentionally moved up and down to change the cutting height, and it is possible to perform the cutting operation smoothly, and By attaching the height adjustment switch 61 to the handgrip 57b of the steering handle 57, good operability can be obtained. Further, by configuring the height adjusting switch 61 as a two-stage switch as described above, the cutting unit 26 adjusted to an arbitrary cutting height by manual operation is automatically raised or lowered, and the automatic cutting height setting is immediately performed. It is possible to return to the position. The height adjustment switch 61 may be configured so that the reaping unit 26 is raised when rotated to the left, and the reaping unit 26 is lowered when rotated to the right.

As described above, the getting-on / off step 6 for getting on / off to the driving unit 10 is formed in a stepwise shape on the side of the body, and as shown in FIGS.
In the lowermost step 6a, the left and right positions are arranged in accordance with the side of the body, and the upper side of the lowermost step 6a is arranged inside the side of the body. That is, step 6
Are formed more inward than the side of the fuselage so as not to protrude from the width of the fuselage to the left and right. Further, a foot plate 20 formed of a plate-like member such as an iron plate and rotatable around a rotation fulcrum 20 is attached to a driver's cab 19 at the uppermost stage of the step 6 for getting on and off. When the user gets on and off, the foot plate 20 is turned inward and opened, and, for example, after getting on, the foot plate 20 is turned outward and closed.

As described above, since the getting on / off step 6 is formed on the inner side of the side of the body, like the step for getting on and off which is formed so as to protrude outward from the side of the conventional body,
There is no need to increase the body width. Also, in the conventional step for getting on and off, when getting on and off, pull out and use it, and when not used after getting on and off, store it inward,
Some of them were housed, but the structure was complicated and the cost was high. However, since the boarding / alighting step 6 of this example is fixed and has a simple structure, it can be configured at low cost. The step 6 is formed in the inward direction of the fuselage. However, since the foot plate 20 which can be opened and closed is provided at the uppermost portion of the step 6, the driver can close the foot plate 20 after getting on the vehicle to drive. A large space on the table 19 can be secured.

[0042]

As described above, the present invention has the following advantages. That is, as described in claim 1, the cutting operation is performed by mounting a cutting height adjustment switch, which allows the cutting height to be adjusted arbitrarily by a manual operation, to the grip portion of the rotary handle. Since the cutting height can be adjusted while holding the grip of the rotary handle inside, the operability when performing the cutting height adjustment is good,
For example, as in the past, a finger suddenly touches the cutting height adjustment switch during operation of the main shift lever that is frequently operated during driving,
It is possible to prevent an erroneous operation such as an unintentional rise and fall of the reaping unit to change the cutting height, and it is possible to smoothly perform the reaping operation. In addition, by disposing a display indicating the cutting height at the approximate center of the rotary handle, the cutting height during the cutting operation can be recognized at any time, and the cutting operation is performed at a constant cutting height. Can be confirmed and stable work can be continued with confidence. Also, when the cutting height is manually adjusted by the cutting height adjustment switch, the cutting height can be checked while the cutting height is displayed on the display for displaying the cutting height. It can be adjusted to the cutting height and can be adjusted to a constant cutting height. As a result, a uniform reaping operation can be performed, and it is possible to improve the operation quality. In addition, since the indicator for displaying the cutting height is disposed substantially at the center of the rotary handle, it is possible to check the cutting height with almost no movement of the line of sight even during the driving operation, and it is possible to smoothly check the cutting height. The driving operation is not impaired.

According to a second aspect of the present invention, a cutting height adjusting switch is provided on the handle of the rotary handle so that the cutting height can be arbitrarily adjusted by manually raising and lowering the cutting unit. Since the cutting height can be adjusted while holding the grip portion of the rotary handle during the driving operation, the operability when performing the cutting height adjustment is good. This prevents erroneous operations such as suddenly touching the cutting height adjustment switch during operation of the frequently operated main shift lever, and unintentionally raising and lowering the cutting unit to change the cutting height. The mowing work can be performed smoothly. In addition, by arranging a display for indicating the cutting height on the instrument panel disposed in front of the rotary handle, the cutting height during the cutting operation can be recognized at any time. Now, it can be confirmed that the mowing work is being performed, and the stable work can be continued with confidence. Also, when the cutting height is manually adjusted by the cutting height adjustment switch, the cutting height can be checked while the cutting height is displayed on the display for displaying the cutting height. It can be adjusted to the cutting height and can be adjusted to a constant cutting height. As a result, a uniform reaping operation can be performed, and it is possible to improve the operation quality. Further, since the indicator for displaying the cutting height is disposed on the instrument panel in front of the rotary handle, it is possible to check the cutting height with almost no movement of the line of sight during driving, Further, since the cutting height is always displayed at a fixed position and angle, it is easy to confirm the cutting height, and a smooth driving operation is not spoiled.

According to a third aspect of the present invention, a cutting height adjustment switch is provided on the handle of the rotary handle so that the cutting height can be arbitrarily adjusted by manually moving the cutting portion up and down. Since the cutting height can be adjusted while holding the grip portion of the rotary handle during the driving operation, the operability when performing the cutting height adjustment is good. This prevents erroneous operations such as suddenly touching the cutting height adjustment switch during operation of the frequently operated main shift lever, and unintentionally raising and lowering the cutting unit to change the cutting height. The mowing work can be performed smoothly. In addition, by placing an indicator for displaying the cutting height on the instrument panel disposed substantially at the center of the rotary handle or on the front of the rotary handle, the cutting height during the cutting operation can be changed as needed. It is possible to recognize that it is possible to confirm that the mowing work is being performed at a fixed mowing height, and it is possible to continue stable work with confidence. Also, when manually adjusting the cutting height by the cutting height adjustment switch, the cutting height can be adjusted while checking the cutting height on the display that displays the cutting height.
The target cutting height can be reliably adjusted, and the cutting height can be adjusted to a constant value. As a result, a uniform reaping operation can be performed, and it is possible to improve the operation quality. Furthermore, even while driving, it is possible to check the cutting height with almost no movement of the line of sight.
When the indicator is placed on the instrument panel in front of the rotary handle, the cutting height is always at a fixed position.
Since the angle is displayed, it is easy to confirm the cutting height, and a smooth driving operation is not impaired. Also, the cutting height adjustment switch is configured as a two-stage switch, and the cutting height adjustment switch can be adjusted to an arbitrary cutting height by turning on the first stage switch, and the second stage switch is turned on. By doing so, the mowing unit is configured to move up and down to a preset mowing height, so after manually adjusting the mowing height, the same switch can be further operated without changing the position of the hand to be operated. With a simple operation, the mowing unit can be automatically raised and lowered and immediately returned to the automatic mowing height setting position.

According to a fourth aspect of the present invention, a cutting height adjusting switch is provided on the handle of the rotary handle so that the cutting height can be arbitrarily adjusted by manually raising and lowering the cutting section. Since the cutting height can be adjusted while holding the grip portion of the rotary handle during the driving operation, the operability when performing the cutting height adjustment is good. This prevents erroneous operations such as suddenly touching the cutting height adjustment switch during operation of the frequently operated main shift lever, and unintentionally raising and lowering the cutting unit to change the cutting height. The mowing work can be performed smoothly. In addition, by placing an indicator for displaying the cutting height on the instrument panel disposed substantially at the center of the rotary handle or on the front of the rotary handle, the cutting height during the cutting operation can be changed as needed. It is possible to recognize that it is possible to confirm that the mowing work is being performed at a fixed mowing height, and it is possible to continue stable work with confidence. Also, when manually adjusting the cutting height by the cutting height adjustment switch, the cutting height can be adjusted while checking the cutting height on the display that displays the cutting height.
The target cutting height can be reliably adjusted, and the cutting height can be adjusted to a constant value. As a result, a uniform reaping operation can be performed, and it is possible to improve the operation quality. Furthermore, even while driving, it is possible to check the cutting height with almost no movement of the line of sight.
When the indicator is placed on the instrument panel in front of the rotary handle, the cutting height is always at a fixed position.
Since the angle is displayed, it is easy to confirm the cutting height, and a smooth driving operation is not impaired. In addition, since a reset switch is provided near the cutting height adjustment switch so that the cutting unit moves up and down to a preset cutting height when it is turned on, the cutting unit is operated after being manually adjusted to an arbitrary cutting height. By simply operating the reset switch provided near the cutting height adjustment switch without changing the position of the hand, the cutting unit is automatically raised and lowered to immediately return to the automatic cutting height setting position. Becomes possible.

According to a fifth aspect of the present invention, a cutting height adjustment switch is provided on the handle of the rotary handle so that the cutting height can be arbitrarily adjusted by manually raising and lowering the cutting portion. Since the cutting height can be adjusted while holding the grip portion of the rotary handle during the driving operation, the operability when performing the cutting height adjustment is good. This prevents erroneous operations such as suddenly touching the cutting height adjustment switch during operation of the frequently operated main shift lever, and unintentionally raising and lowering the cutting unit to change the cutting height. The mowing work can be performed smoothly. By configuring the cutting height adjusting switch so that the mowing unit moves up and down only while the cutting unit is turned on, for example, if the cutting height adjusting switch is turned on in the direction in which the mowing unit is raised, the mowing is performed only during that time. The mowing part rises by extending the cylinder for raising and lowering the part, and if the cutting part is turned on in the downward direction, the cylinder for raising and lowering the mowing part is reduced only during that time, and the mowing part is lowered, If you release your hand from the cutting height adjustment switch, it will return to the off state and the raising and lowering of the cutting unit will stop, so the on state will be maintained even after you release your hand from the cutting height adjustment switch, and the cutting unit will rise. It is possible to prevent erroneous operations such as excessive cutting and lowering, and to simplify the operation of adjusting the cutting height. In addition, by placing an indicator for displaying the cutting height on the instrument panel disposed substantially at the center of the rotary handle or on the front of the rotary handle, the cutting height during the cutting operation can be changed as needed. It is possible to recognize that it is possible to confirm that the mowing work is being performed at a fixed mowing height, and it is possible to continue stable work with confidence. Also, when the cutting height is manually adjusted by the cutting height adjustment switch, the cutting height can be checked while the cutting height is displayed on the display for displaying the cutting height, so that the target is reliably set. It can be adjusted to the cutting height and can be adjusted to a constant cutting height. As a result, a uniform reaping operation can be performed, and it is possible to improve the operation quality. In addition, the cutting height can be confirmed with almost no movement of the line of sight even during driving, especially when the indicator is arranged on the instrument panel at the end of the rotary handle. Since the height is always displayed at a fixed position and angle, it is easy to confirm the cutting height, and a smooth driving operation is not spoiled.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a combine having a cutting height adjusting mechanism of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view showing the front part of the fuselage.

FIG. 4 is a plan view showing a steering handle.

FIG. 5 is a diagram showing a state in which a cutting height adjustment switch attached to a steering handle is operated in a downward direction.

FIG. 6 is a view showing an operating state of the cutting height adjustment switch in the ascending direction.

FIG. 7 is a plan view showing another embodiment of the cutting height adjustment switch attached to the steering handle.

FIG. 8 is a plan view showing an example in which a cutting height indicating meter is provided on an instrument panel located at a position ahead of a steering handle.

FIG. 9 is a view showing an operation state of a cutting height adjustment switch attached to a steering handle in FIG. 8 in a descending direction.

FIG. 10 is a view showing an operation state of the cutting height adjustment switch in FIG. 8 in the ascending direction.

FIG. 11 is a perspective view showing a state in which a foot plate at the uppermost step of the getting on / off step is closed.

FIG. 12 is a perspective view showing a state in which the foot plate is opened.

[Explanation of symbols]

 D Lowering operation position N Neutral position R1, R2 Reset position U Elevating operation position 10 Operating section 16 Instrument panel 17 Steering handle 17a Handle shaft 17b Handshake section 18 Cabin 26 Cutting section 30 Cutting lift cylinder 31 Cutting height adjustment switch 32 Cutting Height display meter

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B074 AA01 AB01 AC02 AC03 BA18 BA19 CB03 DA01 DA02 DE03 2B076 AA03 CA04 CA17 CA20 CC02 CD04 DC03 2B382 GA03 GA09 GC03 GC04 GD02 HB02 HF02 HF15 HF27

Claims (5)

[Claims] 1. A steering operation is performed by a rotary handle,
In a combine configured so that the cutting height can be adjusted, a cutting height adjustment switch that allows the cutting height to be adjusted arbitrarily by manually operating the cutting portion is attached to the grip portion of the rotary handle, A combine cutting height adjusting mechanism, wherein a display for displaying the cutting height is arranged at a substantially central portion of the rotary handle. 2. A steering operation is performed by a rotary handle,
In a combine configured so that the cutting height can be adjusted, a cutting height adjustment switch that allows the cutting height to be adjusted arbitrarily by manually operating the cutting portion is attached to the grip portion of the rotary handle, A cutting height adjusting mechanism for a combine, wherein an indicator for displaying a cutting height is disposed on an instrument panel disposed in front of a rotary handle. 3. A steering operation is performed by a rotary handle,
A cutting height adjusting switch for manually adjusting a cutting height by manually operating a cutting height is attached to a grip portion of the rotary handle. A display for displaying the height is arranged at a substantially central portion of the rotary handle or on an instrument panel disposed at the end of the rotary handle, and the cutting height adjustment switch is configured as a two-stage switch. By turning on the first-stage switch of the cutting height adjustment switch, the cutting height can be adjusted to an arbitrary value. By turning on the second-stage switch, the cutting unit can be set to a predetermined cutting height. A cutting height adjusting mechanism for a combine, characterized in that it is configured to move up and down. 4. A steering operation is performed by a rotary handle,
A cutting height adjusting switch for manually adjusting a cutting height by manually operating a cutting height is attached to a grip portion of the rotary handle. An indicator for displaying the height is disposed substantially at the center of the rotary handle or on an instrument panel disposed at the end of the rotary handle, and an on operation is performed near the cutting height adjustment switch. A cutting height adjusting mechanism for a combine, wherein a reset switch is provided for raising and lowering the cutting unit to a preset cutting height when the cutting is performed. 5. A steering operation is performed by a rotary handle,
A cutting height adjusting switch for manually adjusting a cutting height by manually operating a cutting height is attached to a grip portion of the rotary handle. An indicator for displaying the height is arranged at a substantially central portion of the rotary handle or on an instrument panel disposed at the end of the rotary handle, and the cutting height adjustment switch is turned on to operate. A cutting height adjustment mechanism for a combine, wherein the cutting unit is configured to move up and down only while the cutting unit is in operation.