JP2003079222A - Front column of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a space for a speed change lever of the both side of a driving seat to shorten, and to realize the compacting a driving space in a small combine harvester. SOLUTION: The operation portion A of the combine harvester in which a front column 1 for operation is vertically disposed in front of the driving seat 9 is characterized by using the upper side of the front column 1 as a control panel 1a, protectedly supporting a speed change lever 2 capable of being forward or backward rotated to change the forward or backward movement speed of the combine harvester, and a steering, reaping and elevating lever 3 which is supported in a state capable of being longitudinally or laterally rotated, can longitudinally be rotated to elevate or lower a reaping portion, and can laterally be rotated to steer the combine harvester, projectedly supporting a safety bar 4 or the like to be gripped by a driver to hold his operation posture on the front column 1, and further projecting a parking brake lever 16 on the right side of the front column 1.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine
Related to the layout of the component columns. 2. Description of the Related Art In a conventional combine, a front-rear rotation operation is performed.
The configuration in which the workable shift lever is supported on the side of the cockpit is public.
It is known that even small combines
It has a configuration. [0003] In recent years, small combine harvesters
In the configuration, further compaction of each part is desired
The pilot's seat was designed to be more compact near the cockpit.
Remove the space for the gearshift lever on the side of the seat, and
It is desirable to shorten it. So, in front of the cockpit,
Collar that supports levers for raising and lowering the mowing section
It is conceivable to support the gearshift lever in the
The lever should be in the neutral position to suit the operator's control feeling.
To move forward to move forward, and to move backward to move backward.
It is desirable to set it as a work, which avoids erroneous operation
It is also a means to do. In this case, the forward and reverse
Therefore, it is necessary to provide a certain shift operation area,
The amount of forward and backward rotation becomes considerably long. Therefore, it is located in front of the cockpit.
When the gearshift lever is rotated backward when the
To operate from a far distance due to the length of the cereal stem
If the operator is standing and maneuvering,
And the operability deteriorates.
You. SUMMARY OF THE INVENTION The present invention relates to a combine
To reduce the size and shorten the width near the cockpit,
Use such means. In front of the cockpit 9, an operation flow
In the operating section A of the combine where the control column 1 is set up
The upper surface of the front column 1 is an operation panel 1a.
In the work table 1a, forward and backward shift is enabled by turning back and forth.
The shift lever 2 is supported rotatably back and forth and left and right.
Rotate the mowing part up / down operation and turn left / right to steer.
The steering and reaping elevating lever 3 is projected and supported.
Column 1 holds the pilot to hold the working posture.
Safety bar 4 and the like are projected and supported, and the front column
1 has a parking brake lever 16 protruding on the right side.
It is. As described above, according to the present invention, the transmission lever
-2 is supported by the front column 1, so the cockpit 9
The side width is reduced by the space for the gearshift
Be shorter. Also, when rotating the shift lever 2 backward, less
Both of them are located outside the cockpit 9 when viewed from the front.
Therefore, for example, even if the operator stands and controls,
The tip of lever 2 does not abut. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention.
Is as described above, and then of the present invention shown in the attached drawings.
An embodiment will be described. FIG. 1 shows a combine employing the present invention.
, FIG. 2 is the same right side view, and FIG.
FIG. 4 is an internal front view of the front column 1, FIG.
Is the same internal side view, FIG. 6 is the front view of the shift lever mechanism,
FIG. 7 is a partial front sectional view, and FIG. 8 is a transmission lever machine.
FIG. 9 is also a partial side sectional view,
(A) shows the interlock between the shift lever 2 and the forward interlocking plate 24F.
FIG. 4B shows the connection between the shift lever 2 and the reverse interlocking plate 24R.
FIG. 10 is a view showing movement, and FIG.
FIG. 11 is a front view, and FIG.
-Side surface showing the wiring structure between the -3 and the transmission case M
Fig. 12 shows the inside showing the mowing and threshing clutch lever mechanism.
It is a side view. First, the overall structure of the combine is shown in FIG.
And FIG. Left and right crawlers 65L / 65R
The traveling body is formed on the crawler traveling device
As shown in FIG. 2, on the right side of the traveling
The operation unit A and the paddy storage unit D are disposed at the rear. Operation unit
A is supported by the chassis 6, and the front is
The front column 1 covered with the
The upper part is an operation panel 1a.
Bar 2, steering and reaping elevating lever 3, safety bar 4, etc. protrude
Supported, and behind the front column 1, a step 7
After that, the cockpit 9 is placed on the seat 8 which also serves as the engine room
It is arranged. Note that, in FIG.
The working position is shown as F and the reverse operation position is shown as R. Ma
In addition, in the upper part in front of the threshing / sorting section C described later on the left side of the cockpit 9,
The mowing clutch lever 10 and the threshing clutch lever 11
It is arranged. The operator sits down on the cockpit 9 as shown in FIG.
Hang on or stand on step 7 to steer. Paddy
The storage unit D is configured to be able to place paddy bags,
A funnel-shaped Glen tank 64 is provided above,
The paddy flowing down from the Glen tank 64 can be stored in the paddy bag.
Swelling. In addition, paddy will be transported from the threshing / sorting section C described below.
The feeding conveyor 63 is connected to the Glen tank 64
ing. [0008] Further, as shown in FIG.
A grain / sorting section C is formed, and it is turned up and down in front of it.
The reaper B is supported as possible. In this embodiment,
Weeding boards 56L and 56
A pair of right and left raising devices 57 that project M · 56R forward.
L.57R is disposed, and a cutting blade 58 and
Scratch transfer foils 59L and 59R, which are star wheels, are arranged.
Behind it, the spike transfer device 60 and the vertical transfer device
Device 61 is provided. Driving of each device in the reaper B
The system is based on the reaping input pulley 48 transmitted from the engine.
The two transfer devices 60 and 61 are driven via the cutting input shaft 53.
While moving through the first transmission shaft 54 and the second transmission shaft 55
Then, the raising device 57, the cutting blade 58, and the scraping conveyance wheel 59 are
It is a driven configuration. The grain stalk is pulled upright by the raising device 57.
Is raised and the root portion is inside the reaping portion A by the rake-in transport wheel 59.
And cut by the cutting blade 58. Furthermore, the ear side
In the head-end conveying device 60, the root side is pinched by the vertical conveying device 61.
Is transported while being changed from the vertical position to the horizontal position, and threshing.
・ Feed chain installed in the threshing section above the sorting section C
Of the cereal stem with a handling cylinder (not shown)
Paddy, etc., which has been threshed, is sorted by the sorting section below.
And the paddy passes through the above-mentioned conveyor 63
64. Next, the front column 1 in the operation section A
Will be described. The upper part of the front column 1
As shown in FIG. 3, the operation panel 1a has a shift lever.
2. In addition to the steering and reaping elevating levers 3, the pilot
Safety bar 4, key insertion port 12, gripped to hold
Safety confirmation panel 13 for alarms on various parts of the aircraft,
And the like. And the front column
1 below the rear part of the vehicle by the stepping operation of the pilot shown in FIG.
The brake pedal 15 that rotates to the right
The parking brake lever 16 shown in FIG.
ing. The front part of the front column 1 is as shown in FIG.
The front cover 5 having the lamp 5b is attached to the chassis 6
Hook 5a on the locking bar 6a provided horizontally at the front end of
It is covered, and the front is removed by removing the hook 5a.
Open the cover 5 and open the front of the front column 1.
You. When the front cover 5 is removed,
The relay members 34, 34 for adjusting the handling depth and the lamp
Relay members 35 for lighting 5b, and further, a flasher
A relay member 36 for lighting is disposed on the front surface,
Maintenance work for these relay members has become easier
I have. The structure of the shift lever 2 will be described. Strange
Conventionally, the speed lever 2 is located on the left side of the cockpit 9 (the side of the cutting section B).
Although it was arranged, in order to shorten the left and right width of the operation unit A,
Also, to avoid interference with the reaping section B of the lever,
In the embodiment, as shown in FIG. 3, the operation panel 1a is configured.
It is supported in the guide groove 17 so as to be able to rotate back and forth and left and right.
I have. The front portion 17F of the guide groove 17 is a forward area.
The higher the speed, the faster the vehicle turns, and stops at the rear end.
Stop. The groove 17N formed on the left side from the rear end position is
This is the neutral range, and the shift lever 2 is located in this area.
Then, a neutral state in which the traveling stop state is maintained. Soshi
The reverse area 17R is formed behind the left end of the neutral area 17N.
The shift lever 2 is moved backward in the reverse region 17R.
When turned in the backward direction, it moves backward and is proportional to the amount of backward rotation
As a result, the reverse traveling speed increases. Thus, the neutral zone 17
Extending forward area 17F and backward area R from N
What they are doing is from the point of view of the operator's
It is designed to avoid any vertical mistakes.
You. Further, the fulcrum of rotation of the transmission lever 2 in the front-rear direction is shown in FIG.
As shown in FIG. 8, it is substantially below the neutral region 17N. In addition,
To reduce the operating load of the bar, the tip
It is good to increase the length up to, but since it was lengthened linearly
Means that the rotation trajectory of the tip of the gearshift lever becomes larger,
Hand movements related to gear shifting operations become large, making operations difficult
The distance between the base and the tip of the shift lever 2 is short.
As shown in FIG. 8, the grip 2 at the tip is
"e" toward the cockpit 9 at a bending angle θ1
It is bent. Therefore, it is set in the reverse area 17R,
Further, as shown in FIG. 2 or FIG.
The gear shift lever 2 that has been set tilts considerably backward,
The angle θ2 becomes extremely small. On the other hand, the worker needs to look far away and work.
Standing on step 7 when there is
When the worker takes this position, it leans backward
The guide groove 17 is provided so that the shift lever 2 does not hit the operator.
The rear area 17R of the vehicle is, as shown in FIG. 1 or FIG.
When viewed from the left, it is drilled on the left side (cutting part B side) and
Gearshift lever set to the R position in FIG.
2 at least at the tip 2
So that it is positioned off the extension line L toward the reaper B
I have. In addition, when the shift lever 2 is rotated backward,
For example, when the RH position in FIGS.
2 is very small and almost horizontal, so it comes into contact with the worker
Is less likely to occur. Next, the internal mechanism of the transmission lever 2 will be described.
This will be described with reference to FIGS. In front column 1
And a flat plate-like portion 2 on the left and right
a is formed. On the other hand, the longitudinal rotation shaft 18
Are fixed in the left-right direction, and as shown in FIGS.
Rotating portion for forward rotation rotatably from left to right on rear rotating shaft 18
23F, lever front-rear rotation member 19, reverse rotation member 2
3R is circulated, and as shown in FIG.
The lever connectors 20 are fixed in parallel to the front and rear from the material 19.
Is established. Between the lever connectors 20, front and rear
The left and right rotation shaft 21 is fixed in the direction
In other words, the lever left / right rotating member 22 is turned
It is installed so that it can roll freely. This lever left / right rotating member 22
The lower end of the plate-like portion 2a of the transmission lever 2 is fixed thereon.
Thus, the shift lever 2 is moved left and right as shown in FIGS.
It becomes freely rotatable left and right around the rotation shaft 21, and furthermore, FIG.
As shown in FIG.
ing. However, as described above, the transmission lever 2 is provided in the guide groove.
17 so that its forward area 17F and reverse area
It is possible to rotate back and forth at 17R, left and right at its neutral area 17N
It is possible to move. As described above, it is supported so as to be able to rotate back and forth and right and left.
Before and after the shifting lever 2 is pivoted by the pivot shafts 25b and 25c.
The triangular lever sliding arm 25 supported in a side view is a plate
It is inserted into a long hole 2b drilled in the shape 2a.
Shift lever 2 externally fitted to the lever sliding arm 25
The front and rear slides for the high / low speed switching operation as shown in FIGS.
It is possible to move. The lever sliding arm 25 is
It can be rotated right and left and right with the right and left rotation of the shift lever 2
Move. On the other hand, it is loosely fitted on the front-rear rotation shaft 18.
The forward interlocking plate 24F is used for the forward rotation member 23F for backward travel.
The reverse interlocking plate 24R is fixed to the rotating member 23R, and
The bar 2 is disposed on the left and right sides of the plate-like portion 2a.
, So that the shift lever 2 can be
Has become par. Furthermore, each interlocking plate 24F / 24R has
Each has a fitting hole 24a / 24b,
The insertion pins 2c and 2d projecting left and right from the portion 2a are
The speed lever 2 can be fitted and inserted by a left-right rotation operation.
That is, if the shift lever 2 is turned to the right, it is projected to the right.
The forward-moving interlocking plate 2 disposed on the right side
The guide groove of the transmission lever 2 is inserted into the insertion hole 24a of the 4F.
The front and rear rotation operation in the forward movement area 17F of the 17
The forward / reverse interlocking plate 24F also pivots back and forth around the longitudinal pivot 18
On the other hand, if the shift lever 2 is turned to the left,
The insertion pin 2d protruding to the left from a is disposed on the left.
Into the insertion hole 24b of the reverse connecting plate 24R.
The front and rear in the reverse area 17R of the guide groove 17 of the lever 2
The reverse interlocking plate 24R also rotates back and forth integrally with the turning operation. Less than
As shown above, the shift lever 2 is located in the left-right direction
It is rotatable in the rearward direction, and its left and right rotation allows it to move forward.
Selectively engage with interlocking plate 24F or reverse interlocking plate 24R
In addition, the forward and backward rotation
Moving plate 24F and forward turning member 23F or reverse interlocking plate
24R and the reverse rotation member 23R are rotated back and forth.
Because Next, the speed change link mechanism will be described.
You. As shown in FIGS. 6 to 8, the forward rotation member 23F and the rear
The shifting rod mounting portion 2 is provided on each of the advancing rotation members 23R.
3a and 23b are protruded, and the forward connecting plate 24F and the rear
It rotates back and forth integrally with the forward and backward rotation of the forward connecting plate 24R. Each change
Each of the speed rod mounting portions 23a and 23b has
Axis of each upper end of the rod 26F / reverse transmission rod 26R
Uke is pivoted. That is, each transmission rod 26F
R is the forward connecting plate 24F and the reverse interlocking plate 24R, respectively.
It slides up and down as it rotates back and forth. The forward shifting rod 26F and the reverse shifting rod 26F
The spherical bearing and spherical joint at each lower end of the
For each rod 26F
As the R moves up and down, the speed change rotating body 28
It rotates back and forth about the supported rotation shaft 28a. For shifting
The rotating body 28 is disposed in the front-rear direction as described above.
As a result, the width of the installation space is reduced, and
Forward shifting rod 26F and reverse shifting rod to be connected
The 26R installation space also has a left and right width near its lower end.
Since the internal link mechanism of the speed change lever 2 is shortened,
Installation space is reduced in the left and right direction,
Enlarge the front column 1 in the left-right direction with the arrangement of the lever 2
There is no need to expand to width. Also, the lower ends of both transmission rods 26F and 26R.
The pivot position of the part is such that both rods do not interfere due to sliding.
As shown in FIG. 6 and FIG.
Although the position is shifted left and right as shown in FIG.
As shown in the figure, the lower end of the reverse transmission rod 26R is shifted forward.
Move forward so that it crosses the lower end of the rod 26F
I have. As a result, the rearward shift rod 26R is shifted rearward.
Since the pace is empty, after arranging it behind as shown in FIG.
Move the forward / reverse switching rod 27 to the front
Move the rear of the system 1 forward to make it compact and
The front expansion of the tip 7 can be realized. Further, the speed change rotating body 28 is
Transmission gear ring attached to the transmission case M
A transmission connecting rod 29 is interposed in the
With the rotation of the rotating body 28, the connecting rod 29 for shifting
However, by sliding back and forth as shown in FIG.
Rotates, and the speed change is performed in the transmission case M.
You. When the shifting connecting rod 29 slides forward H side,
Rotate the ring cone 30 to the speed increasing side and slide to the rear L side
Rotate to the deceleration side when performing. The ring cone 30
The shifting rotator 28 rotates in the reverse direction due to the reaction force
Around the rotating shaft 28a of the rotating body 28 for shifting so as not to
Is provided with a friction plate 28b.
・ Protects the link mechanism such as 26R. The operation between the forward / backward rotation operation of the transmission lever 2 and the acceleration / deceleration is described.
The association will be described. 8 and 9 (a) and (b)
When the shift lever 2 at the front end position of the forward
H, neutral area 17N (rear end position of forward area 17F or rear
N at the front end position of the advancing area 17R, N
RH is at the rear end position. Where the figure
8, as shown in FIG. 9A, the shift lever 2 is
Rotating forward (FH side) in the advancing area 17F causes
The forward interlocking plate 24F into which the speed lever 2 is fitted rotates forward.
Therefore, the forward shifting rod 26F slides upward to change the speed.
Rotator 28 is rotated rearward and upward, thereby
Connecting rod 29 slides to the rear H side, and the ring cone
30 is rotated to the speed increasing side to increase the traveling speed. Soshi
When the vehicle reaches the FH position, the forward speed becomes the highest. Also figure
8, as shown in FIG. 9B, the shift lever 2 is moved to the reverse region 17R.
Is rotated backward (RH side) at
Is now fitted to the reverse interlocking plate 24R,
As the plate 24R rotates backward with the shift lever 2,
As a result, the reverse shifting rod 26 slides upward,
The rotating body 28 for rotation is rotated rearward and upward, and the connecting rod for shifting is
29, slide the ring cone 30 forward to the H side,
The RH position is increased by increasing the running speed.
, The reverse speed of the traveling aircraft becomes maximum. On the other hand, when the shift lever 2 is
In the reverse region 17R, it is turned forward, that is, toward the N position.
The more the gear is moved, the more the speed change rod 26F
The speed rod 26R slides downward and moves the speed change rotating body 28 forward.
The transmission connecting rod 29 is slid downward to the rear L side.
To rotate the ring cone 30 to the deceleration side,
Slows down. In the N position, the speed change rotating body 28
Is rotated forward and downward, and the ring cone 30 is
It rotates to the maximum speed on the deceleration side and stops running. Next, a link mechanism for switching between forward and backward movement will be described.
I will tell. As shown in FIG. 6 to FIG.
A forward / reverse switching rod mounting portion 25a protrudes from the rear end.
So that the speed change lever 2 turns up and down integrally with the left and right turn.
Swelling. For this forward / reverse switching rod mounting part 25a
The upper end of the forward / reverse switching rod 27 is supported
With the left and right rotation of lever 2 and lever sliding arm 25
So that the forward / reverse switching rod 27 slides up and down.
Have been. On the other hand, as shown in FIGS.
8, a pivot portion 31 is fixedly provided and extends in the front-rear direction.
The front end of the rotating shaft 32 is rotatably pivotally supported,
It moves forward and backward to a mounting part 32a protruding from the front part of the rotating shaft 32.
The lower end of the switching rod 27 is pivotally connected. In addition, the pivot axis
32 extend in the left-right direction to the mounting portion 32b projecting from the rear portion.
The left end of the forward / backward switching connecting arm 33 is connected.
The forward / backward switching connecting arm 33 is not shown.
To the forward / backward switching lever member of the transmission case M
The left F side of the forward / reverse switching connecting arm 33
The lever member is switched to the forward side by sliding
Switch to the reverse side by sliding to the right R side. That is, medium
In the heart region 17N, the shift lever 2 is moved to the right side in FIG.
Tilt to the rear end side of the forward area 17F of the (rear cutting section B side)
And the forward / reverse switching rod mounting portion 25a rotates upward and
The switching rod 27 slides upward, and the rotating shaft 3
With the rotation of 2, the forward / reverse switching connecting arm 33 is moved to the left F side.
To switch forward in the transmission case M
It is. Conversely, the shift lever 2 is moved to the left in the neutral region 17N.
(Mowing part B side) leaning toward the front end side of the reverse area 17R
, The forward / backward switching rod 27 slides downward to switch forward / backward.
Connecting arm 33 slides to the right R side, and the reverse is switched.
Be done. Shifting and forward / backward movement by operating the shift lever 2
The switching mechanism has been described above. Next, steer / reap
The lever 3 will be described. As shown in Fig. 3, steering and mowing
The lowering lever 3 is rotatably supported in the front-rear and left-right directions.
Rotation of the reaping unit by turning back and forth, steering by turning left and right
Is what you do. Referring to FIGS. 4, 10 and 11, the steering operation is described.
The operation mechanism will be described. In the front column 1,
At the base end of the directional / cutting elevating lever 3, a wire is
A connecting plate 3a is fixed, and steering and cutting are performed at the center thereof.
The lifting / lowering lever 3 and the wire connecting plate 3a are rotatable left and right.
It is pivoted. And, at the left and right ends of the wire connecting plate 3a
37L left side clutch wire and right side clutch respectively
And the inner wire ends of the switch wires 37R.
The side clutch wires 37L and 37R can be bent.
Lower than the right end in the front column 1 to reduce
On the right side of the transmission case M when viewed from the front.
From the right side of the transmission case M
ー Fix and support the outer wire end of each wire in the receiver 38
And the other end of each inner wire protruding from it
At the front of the transmission case M, it is possible to turn left and right.
Installed left side clutch lever 39L / right side clutch
It is pivotally connected to the touch lever 39R. Side clutch
Mission case M of ya 37L / 37R from the right side
To the side clutch levers 39L and 39R
Of the wire, so that the bending of each wire is suppressed.
Is controlled. In addition, the mission cable opposite to the crawler
The inner wire is connected in front of the case M
The inner wire is covered with mud from the crawler drive
The wire's operating performance for a long time
is there. Left and right side clutch levers 39L and 39R
Are turned to the left (the side opposite to the operation unit A),
Disengage the id clutch and crawlers 65L / 65R on each side
Stop steering. The turning operation is performed by turning the crawler on the turning side.
By stopping the movement, for example, as shown in FIG.
Tilt the steering and reaping elevating lever 3 to the left as
For example, the left end of the wire connecting plate 3a rotates downward,
The inner wire of the id clutch wire 37L is
Pushed to the case M side, the left side clutch lever 3
Rotate 9L to the left to stop driving the left crawler 65L
Then you can turn left. Conversely, the steering / reaper lifting lever 3
To the left, the right side clutch wire 37R
The inner wire is pushed out to the transmission case M side
The right side clutch lever 39R rotates to the left,
The drive of the crawler 65R is stopped, and the crawler 65R can turn right. As described above, the steering / rearing elevating lever 3 and the
Turn of the side clutch levers 39L and 39R with ear connection
In the dynamic operation mechanism, the installation space is made compact.
The configuration aiming at the above will be described. First, the left and right side clubs
For the outer wire receiver of the switch wires 37L and 37R.
In order to reduce the space required
Outer holder for holding the outer wire up and down
38 is disposed on the right side of the transmission case M. Further, the left and right width of the transmission case M is reduced.
Left and right side clutch lever 39L / 3
9R, the left side clutch lever 3 arranged on the left side
If the rotation area of 9L is shifted to the left,
Since it protrudes to the left from the transmission case M,
There is a possibility that interference with other members may occur. Therefore,
The rotation range of the id clutch lever 39L is closer to the right side (operation
(Near section A). On the other hand, the right side clutch lever
-39R, the transmission case M
Adjust the rotation area so that it does not protrude to the right and interfere with other members.
It is provided on the left side (closer to the operation unit A). Then,
Close to the right side clutch lever 39R disposed on the right side.
However, to avoid interference between the two rotation zones,
Arrange the latch levers 39L and 39R so that they cross each other.
To the front and rear positions for one side clutch lever.
Must be shifted, so that the mission case M
Of the left and right side clutch levers in front of the
The pace will increase. Therefore, both rotation areas
Space between the left and right so that they do not interfere with each other,
Further, the arrangement position is shifted vertically. In this embodiment,
Move the left side clutch lever 39L to the right side clutch lever.
It is arranged above -39R. On the other hand, it is fixed and supported by the outer
Outer left and right side clutch wires 37L and 37R
The inner wire protrudes from the wire end, and
Switch levers 39L and 39R.
In the outer tray 38, the left side clutch
If the ear 37L is supported, the left side clutch lever 39
L is located above the right side clutch lever 39R.
The left side clutch wire 37L
Inner wire connected to id clutch lever 39L
And the right side clutch wire from the right side clutch wire 37R.
The inner wire connected to the chiller 39R is
Behave in line and do not interfere with each other. But both sidek
The latch levers 39L and 39R are arranged such that the rotation area is above each rotation axis.
It is more deviated to the left or right than the other, and with its rotation,
The mounting portion at the end of the inner wire moves up and down.
Therefore, the inner wire curves up and down with expansion and contraction,
The amount of rotation of the side clutch levers 39L and 39R is
It is not exactly proportional to the amount of wire expansion and contraction, resulting in poor operating efficiency. Therefore, the left side clutch wire 37L
Supports the end of the outer wire below the outer receiver 38
If it is, it is arranged above and the rotation area is rightward
Inner Y connected to left side clutch lever 39L
The left and right clutch lever 39L is turned
Direction, so the inner wire extends in a substantially straight line.
And the operating efficiency of the left side clutch is improved. on the other hand,
The outer wire end of the right side clutch wire 37R is
It is supported on the upper side of the outer receiver 38 and disposed below.
Right side clutch lever that has a rotation range toward the left
When the inner wire is connected to 39R, the right side
The extension direction of the inner wire of the wire 37R is also on the right side.
The rotation direction of the clutch lever 39R coincides with that of the clutch lever 39R.
The inner wire can be expanded and contracted, and the right side clutch is activated
Efficiency is also improved. As described above, in the outer receiver 38,
Vertical position of left and right side clutch wires 37L and 37R
The upper and lower sides of the left and right side clutch levers 39L and 39R
When reversed, the size of each wire from the outer end of each wire
Front view of the inner wire connected to the clutch lever
Must cross. Therefore, the left and right side
The support position of the touch levers 39L and 39R is also
It must be shifted back and forth by the intersection of ya. But,
The front and rear width of the inner wire is very small,
The latch levers 39L and 39R are viewed from the front with each other.
The difference between the front and rear support positions can be made much smaller than the difference.
Therefore, it is supported back and forth by the minimum inner wire intersection.
Because it only shifts the holding position,
Side clutch lever 39L / 39R and Y
The front and rear width of the installation space for the gear connection mechanism should be kept small.
And contribute to downsizing around the location of these members.
To offer. Next, the mowing portion of the steering / rearing elevating lever 3 is raised.
The lowering mechanism will be described with reference to FIGS. H
Three steering and reaping elevating levers in the front column 1
The hydraulic valve operation arm 3b is provided to protrude forward from the end.
Cylinder rod of hydraulic valve 40
It is connected to the upper end of 40a. On the other hand,
Cylinder rod with hydraulic pressure
The mowing unit lifting / lowering cylinder 42 that drives the telescoping 42a forward and backward
And the cylinder rod 42a as shown in FIG.
Support the first transmission shaft 54 of the cutting unit B at the front end of the
Reaping section lifting hydraulic valve 40 and reaping section lifting cylinder
Hydraulic pipes 41, 41 are connected between
You. When the steering and reaping elevating lever 3 is rotated back and forth,
The cylinder rod 40a of the hydraulic valve 40 for elevating the lifting part
Up and down rotation of the hydraulic valve operation arm 3b and up and down sliding
Then, pressure oil is sucked and discharged through the hydraulic pipes 41, 41,
The cylinder rod 42a of the mowing unit elevating cylinder 42
The reaping unit B is moved up and down by the expansion and contraction drive. If you rotate forward
The cylinder rod 42a contracts and the reaping part B descends,
When rotated backward, the cylinder rod 42a extends
The reaper B moves up. Transmission lever 2 and front lever 2 in front column 1
The details of each lever mechanism of
As above, finally, the mowing clutch lever 10 and the
FIG. 12 shows the lever configuration of the grain clutch lever 11.
Will be described. Inside the right side of the upper cover 43 of the threshing / sorting section C
On the back of the cockpit 9 in side view.
The rotating shaft 44 is provided horizontally, as shown in FIG.
4 with the fulcrum clutch lever 10 and threshing clutch lever
-11 is supported to rotate back and forth, and
The position X and the rear switching position Y can be switched. Rearward from each clutch lever 10/11
The connecting arms 10a and 11a are projected,
From the connecting arm 10a of the chiller 10, a rotatable cutting
Cutting input tension pulley 46a
To the cutting pulley arm 46 via a spring.
Connect the wire 45 and connect the threshing clutch lever 11
From the arm 11a, a rotatable threshing input tension
Threshing input pulley pulley with tool
Threshing clutch wire 49 is connected to arm 50 via a spring.
are doing. Both tension pulleys 46a and 50a are
With the rotation of the tension pulley arms 46 and 50
, Respectively, the cutting input pulley 48 and the threshing input pulley
Possible to take off the transmission belts 47 and 51 wound around 50
When the tension pulley comes off, each transmission
The bolts 47 and 51 come off and go to each input pulley 48 and 52
Transmission stops. Cutting clutch arm 10 threshing clutch
In the rear switching position Y, each clutch
Connect the ears 45 and 49 to each tension pulley arm 46.5
Push the tension pulleys 46a and 50a
It is configured to be detached from the transmission belts 47 and 51.
That is, when the rear switching position Y is set, the movement of the cutting unit and threshing unit is performed.
I lose my power. The reaping clutch at the rear switching position Y
Arm 10 and threshing harvesting clutch arm 11
Then, as shown in FIG. 12, the driver's seat 9 overlaps the backrest.
It is in a state where it fits. Therefore, the mowing and threshing sections
To stop the power of each part
And the clutch arm 10 or 11 at the rear switching position Y.
When set, for example, culm filling at the entrance of the cutting section or threshing section
To remove the ball, a clutch was placed on the side of cockpit 9.
Since there is no lever, work can be performed smoothly and quickly.
Can be. In addition, before and after both clutch levers 10 and 11
The turning area is located on the left side of the cockpit 9 where the turning operation is performed.
Cheap. It should be noted that when the power is turned on,
In order to reduce the load during the initial operation of the engine
Contact the safety switch 66 and turn on the switch
It has become. As described above, the present invention is constructed as described above.
It has the following effects. Shift lever on front column 1
-2 is supported, so it changes to the side of cockpit 9 as before.
There is no need to arrange a side column for supporting the speed lever,
Therefore, interference of the speed change lever 2 with the mowing part is avoided, and
The left and right width of the operation unit A can be reduced, resulting in a compact combiner
To contribute. Further, a shift supported on the front column 1
Even if the lever 2 is tilted backward, at least its tip is
Because it is located outside the cockpit 9 in front view,
Even if a worker stands and works in front of the vertical seat 9, the worker changes to
There is no worry about the speed lever 2 coming into contact. Therefore, the shift lever
The reverse operation can be set by turning the rearward 2 and it is suitable for maneuvering feeling.
Therefore, operation mistakes are avoided. The operation panel 1a of the front column 1
The steering and reaping elevating lever 3 and the shift lever 2 are moved back and forth
And the brake column is located on the side of the front column 1.
Since the bar 16 was placed, the operator
Get off and operate from the opposite side of the front column 1
It was noh.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a combine employing the present invention. FIG. 2 is a right side view of the same. FIG. 3 is an upper perspective view of an operation unit A. 4 is an internal front view of the front column 1. FIG. FIG. 5 is an internal side view of the same. FIG. 6 is a front view of a transmission lever mechanism. FIG. 7 is a partial front partial sectional view of the same. FIG. 8 is a side view of the transmission lever mechanism. 9A and 9B are partial side and partial cross-sectional views, in which FIG. 9A shows the interlocking of the shift lever 2 and the forward interlocking plate 24F, and FIG. 9B shows the interlocking of the shift lever 2 and the reverse interlocking plate 24R. It is. FIG. 10 is a front view showing a steering and reaping elevating lever mechanism. FIG. 11 is an internal side view showing a wiring structure of a transmission lever M, a steering / reaching elevating lever 3, and a transmission case M; FIG. 12 is an internal side view showing a mowing / threshing clutch lever mechanism. [Description of Signs] A Operation part 1 Front column 1a Operation panel 2 Shift lever 7 Step 9 Pilot seat 17 Guide groove 17a Forward area 17b Neutral area 17c Reverse area

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Kazuto Ando             1-32 Chayamachi, Kita-ku, Osaka-shi, Osaka             ー Agricultural Machinery Co., Ltd. F-term (reference) 2B076 AA03 BA03 BA07 CC02 CD03                       CD04 CD07 DC01 EA08

Claims (1)

Claims: 1. An operating portion A of a combine, in which an operating front column 1 is erected in front of a cockpit 9, has an upper surface of the front column 1 as an operating panel 1a. 1a, a shift lever 2 that enables forward and backward shifting by turning back and forth, and is supported rotatably back and forth and left and right,
A steering / reaper raising / lowering lever 3 that performs a raising / lowering operation of the reaping unit by turning back and forth and a steering operation by turning left and right is protrudingly supported, and a front column 1 is provided for the operator to maintain a working posture. A safety bar 4 and the like to be gripped are protruded and supported, and a parking brake lever 16 is protruded on the right side of the front column 1.