JP2007236335A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple and compact work operation portion of a combine harvester, because it is necessary to ensure a space in an operation column for receiving the rotation base portions of operation levers and a compact structure is difficult, when a threshing operation lever and a reaping operation lever are longitudinally and laterally operated, and because the operations of the levers are missed to touch a switch and may cause a wrong operation, when a reaping switch is disposed in an operation lever-holding portion. <P>SOLUTION: The operation portion 14 of the combine harvester 50, made by disposing a side column 21 on the side of a seat 20 and disposing a reaping clutch lever 29 on the side column 21, is characterized by disposing a reaping clutch switch 30 for connecting or disconnecting a reaping clutch 61 on the side column 21. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a combine technique. In detail, it is related with the technique of the switch for cutting work provided in the drive part of a combine.

Conventionally, in operation levers for work operations provided in the operation section of the combiner, the operation levers of the threshing clutch and the reaping clutch are configured by a single operation lever, and the operation direction is configured to be different depending on the purpose (for example, The operation direction of the threshing clutch is set to the front-rear direction and the operation direction of the mowing clutch is set to the left-right direction), and a technique for improving the operability is disclosed and publicly known (see Patent Document 1).
In addition, a technique for improving the operability is disclosed, in which a threshing clutch is operated with an operation lever, and a reaping clutch is operated with an operation switch provided on a grip portion of the operation lever. (See Patent Documents 2 and 3).
Japanese Patent No. 3662189 JP-A-5-153842 JP 2000-92949 A

However, if the operation levers for threshing and mowing are operated forward, backward, left and right, it is necessary to secure a space in the operation column that accommodates the rotation base of the operation lever, and it is difficult to compact the structure. there were.
In addition, if a grip switch is provided in the grip portion of the operation lever, there is a possibility that the switch may be accidentally touched when the lever is operated, resulting in a malfunction.
Therefore, in view of such a current situation, an object of the present invention is to provide an operation unit for a combine work that has a simple and compact configuration and good operability.

  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 claim 1, in the operation part of the combine in which the side column is arranged on the side of the driver's seat and the threshing clutch lever is arranged on the side column, the cutting switch for connecting and disconnecting the cutting clutch on the side column. It is characterized by having arranged.

  According to a second aspect of the present invention, the reaping switch is disposed in the vicinity of the “on” position of the threshing clutch lever.

  According to a third aspect of the present invention, the cutting switch can be turned ON only when the threshing clutch is “ON”, and is OFF when the threshing clutch is “OFF”.

  In claim 4, the threshing clutch lever is positioned in a vertical direction with respect to the side column when the threshing clutch is "off", and parallel to the side column when the threshing clutch is "on". The reaping switch is arranged below the tip of the threshing clutch lever when the threshing clutch is “ON”.

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect of the present invention, the operation to “turn on” and “turn off” the cutting clutch can be easily performed. Also, almost no operating force is required.

  In claim 2, the position of the cutting switch is easily understood and can be easily found and operated.

  In claim 3, it is possible to prevent an erroneous operation. In addition, when the threshing clutch is “off”, the reaping clutch “off” can be automatically set.

  In Claim 4, it can be set as a natural operation direction.

Next, embodiments of the invention will be described.
First, the whole structure of the combine 50 concerning this invention is demonstrated using FIG. 1 thru | or FIG.
In the following description, left and right refer to the left and right of the combine 50 in the aircraft traveling direction.
As shown in FIG. 1 or FIG. 2, in the combine 50 according to the present invention, an airframe frame 2 is placed on the crawler type traveling device 1, and a cutting portion 3 is disposed at the front end of the airframe frame 2 so as to be movable up and down. Has been. A weeding board 4 for weeding cereals protrudes from the front end of the cutting part 3, and a raising case 5 (raising device) is erected at the rear part of the weeding board 4. And the tine 6 protrudes from the raising case 5, and the tine 6 raises and rotates around the case 5 to cause the cereals to be crushed and disposed on the rear portion of the weed plate 4. The blade 7 is configured to reap the stock of the cereal.

On the side (left side) of the machine body, a feed chain 9 for conveying the threshing cereals is provided, and the cereals harvested by the reaping unit 3 are the lower conveying device 8a, the upper conveying device 8b, and the vertical conveying device. 8c is conveyed rearward, and the stock is inherited by the feed chain 9 from the upper end of the vertical conveying device 8c and conveyed into the threshing unit 12.
The handling cylinder 12a is provided in the handling chamber 18 in the threshing section 12, and the handling chamber 18 is covered with a handling chamber cover 18a that can be opened on the left side.
A waste chain 10 is disposed at the rear end of the feed chain 9, and a waste processing unit 11 including a waste cutter device, a diffusion conveyor, and the like is formed below the rear portion of the waste chain 10. Yes. The waste disposal unit cuts the waste into pieces, and then uniformly discharges it to the field while diffusing, or releases it without cutting.

A sorting unit is disposed below the threshing unit 12, and the sorting unit sorts the grain from grains and sawdust flowing down from the threshing unit 12. It is transported to and stored in a glen tank 13 disposed on the side, and soot and the like are discharged out of the machine. A discharge auger 15 is formed behind the grain tank 13, and a vertical discharge auger 15a is provided upright. The glen tank 13 can be rotated laterally around the vertical discharge auger 15a, and maintenance of a drive system and a hydraulic system arranged on the inner side of the machine body can be easily performed. A discharge conveyor (not shown) is disposed at the bottom of the Glen tank 13 in the front-rear direction, and power is transmitted from the discharge conveyor to the discharge auger 15 to the outside through a discharge port 15 c provided in the discharge auger 15. The grain in the Glen tank 13 can be discharged. The discharge auger 15 mainly includes a vertical discharge auger 15a whose lower end communicates with the discharge conveyor and feeds the grain vertically, and a horizontal discharge auger which communicates with the upper end of the vertical discharge auger 15a and feeds the grain laterally. 15b, and the base end side of the horizontal discharge auger 15b is pivotally attached to the upper end of the vertical discharge auger 15a standing on the rear side of the Glen tank 13 so as to be vertically rotatable. The vertical discharge auger 15a is pivotally attached to the body frame 2 so as to be rotatable. By these, it is possible to discharge the grain to any place.
Further, an operation unit 14 is configured in front of the Glen tank 13, and a steering handle 16 and a seat 20 are provided.
A side column 21 is disposed on the left side of the operation unit 14.

As shown in FIG. 3, a side panel 22 and an operation panel 23 are disposed on the side column 21.
The side panel 22 is provided with a display panel 24, a side assist 25, and the like. On the operation panel 23, a travel speed change lever 26, an auxiliary speed change lever 27, a side divider operation lever 28, a threshing clutch lever 29, a reaping clutch switch are provided. 30, the headlight switch 31, the blinker switch 32, the horn switch 33, and the like are disposed at positions that can be easily seen by the operator and can be easily operated by reaching out.
The above is the description of the overall configuration of the combine 50 according to the present invention.

Next, the threshing clutch lever 29, which is the main part of the present invention, will be described with reference to FIG. 3 or FIG.
As shown in FIG. 3, the threshing clutch lever 29 is provided with the lever portion 29 a facing the operation portion 14 side from an opening portion 23 a formed at the approximate center of the rear portion of the operation panel 23 provided in the side column 21. Yes. The lever portion 29a is a member obtained by bending a rod-like member into a substantially “<” shape when viewed from the side, and a grip portion 29b is provided at the upper grip portion.
Further, as shown in FIG. 4, a pipe-shaped lever shaft 29 c is fixed to the lower end of the threshing clutch lever 29 in the left-right direction.

Further, a substantially U-shaped support member 35 in a rear view is fixed to the machine body frame 2 with the U-shaped open side facing upward. A shaft member 36 is laterally provided in the left-right direction so as to connect the opposing faces of the characters.
The threshing clutch lever 29 is configured to be rotatably supported by inserting the shaft member 36 through the lever shaft 29c.

A rotating member 37 is pivotally supported on the shaft member 36. The rotating member 37 is a member obtained by bending a flat plate into a substantially “F” shape in a rear view, and the lower end portion of the left side surface in the vertical direction is pivotally supported by the shaft member 36.
On the upper surface portion of the rotating member 37, a notch portion 37a having a substantially “U” shape in plan view with the right side as an open side is formed, and the lever shaft 29c is hooked by the notch portion 37a. It is configured to do. That is, the rotation member 37 is configured to rotate in accordance with the rotation operation of the threshing clutch lever 29.
In addition, a substantially inclined central portion of the front surface of the rotating member 37 is formed with a cantilevered surface from the left side surface in the vertical direction and inclined forward to form a pressing portion 37b. When the threshing clutch lever 29 is rotated to the front end, the rotation member 37 is rotated accordingly, the pressing portion 37b presses the detection portion 38a of the limit switch 38, and the limit switch 38 is turned “ON”. (Or “off”). In addition, the threshing clutch lever 29 and the rotation member 37 can also be comprised integrally.

A connecting member 39 is pivotally supported on the left outer side surface of the rotating member 37. The connecting member 39 is a flat plate member processed into a substantially “<” shape when viewed from the side. The lower end is bent to form a substantially horizontal surface, and a hole 39 a is formed on the surface.
Then, a latching member 40 provided with a latching portion at the bolt end portion is inserted into the hole 39a and fixed by nuts 54 and 54 so that the urging force can be adjusted.
And by connecting the latching member 40 and the threshing tension arm 41 via the spring 64, the connecting member 39 and the latching member 40 are displaced substantially vertically with the rotation of the rotating member 37, and the threshing is performed. The tension arm 41 is configured to rotate. A tension pulley 49 is rotatably supported at the tip of the threshing tension arm 41, and a belt tension type threshing clutch is configured such that the V belt 43 wound around the threshing input pulley 44 and the threshing output pulley 42 can be tensioned by the tension pulley 49. 60.
When the threshing tension arm 41 is rotated upward (counterclockwise in FIG. 4) and lifted, the V-belt 43 is tensioned and the threshing clutch 60 enters the “on” state, and the threshing output pulley 42 Power is transmitted to the threshing input pulley 44 via the belt 43.
Further, when the threshing tension arm 41 is rotated downward (clockwise in FIG. 4) and pushed down, the tension of the V-belt 43 is released and the threshing clutch 60 is in the “cut” state, and the threshing input pulley 44 is turned on. The power is not transmitted.
That is, when the threshing clutch lever 29 is reciprocally rotated, the threshing tension arm 41 is reciprocally rotated to connect and disconnect the threshing clutch 60.

Further, as shown in FIG. 3 or FIG. 4, the lever portion 29a of the threshing clutch lever 29 is formed in a substantially "<" shape when viewed from the side, and the grip portion 29b protrudes above the surface of the operation panel 23, thereby threshing. The clutch lever 29 can be turned on and off by rotating approximately 90 degrees.
Further, the grip portion 29b of the threshing clutch lever 29 is configured to stand substantially vertically with respect to the surface (horizontal plane) of the operation panel 23 when the threshing clutch 60 is “off”. At the time of “ON”, the grip portion 29 b is tilted in the front-rear direction substantially in parallel with the surface of the operation panel 23, and is configured so as to leave an interval that allows a finger to enter between the surfaces of the operation panel 23. .
Thereby, the status of “ON” and “OFF” of the threshing clutch 60 can be determined at a glance simply by confirming the turning state of the threshing clutch lever 29 (the direction of the grip portion 29b).
The above is description about the threshing clutch lever 29 which is the principal part of this invention.

Next, the reaping clutch switch 30, which is the main part of the present invention, will be described with reference to FIG. 3 or FIG.
As shown in FIG. 3, the reaping clutch switch 30 is disposed at a position approximately in the center of the left and right on the operation panel 23 and slightly in front of the threshing clutch lever 29. In other words, the threshing clutch 60 is rotated to the “on” position so that the gripping portion 29b is not touched when the gripping portion 29b is substantially parallel to the surface of the operation panel 23. Has been.
In this embodiment, the reaping clutch switch 30 is formed by a push-type push button switch. When the switch is “on”, the push-button clutch switch 30 is kept pushed, and when the switch is “off”, the push button is lifted and returns to the original state. It is configured as follows. The push button portion is made of a translucent resin member colored in green or the like, and a lamp is built in the push button. When the switch is “ON”, the lamp is lit and the push button portion emits light.
That is, it is configured so that the state of “ON” and “OFF” of the reaping clutch switch 30 can be clearly identified by the form and light.
The specification of the cutting clutch switch 30 is not limited to the push button switch. For example, a toggle switch with a lamp, a seesaw switch, or the like can be used, and the operation status of the switch is displayed on the display panel 24 or the like. It is also possible to display it.

As shown in FIG. 5, the cutting clutch switch 30 is connected to an actuator such as a motor, a cylinder, or a solenoid. The cutting clutch switch 30 is connected to the cutting clutch 61, and the actuator is operated by operating the cutting clutch switch 30. Can be turned on and off.
In this embodiment, an example in which the motor 45 is employed as the actuator is shown, but the present invention is not limited to this.
That is, the reaping clutch switch 30 is electrically connected to the motor 45 serving as an actuator, and by setting the reaping clutch switch 30 to “ON”, the motor shaft 45a of the motor 45 rotates at a predetermined angle. It is composed.
At this time, the arm 46 fixed to the motor shaft 45a rotates with the rotation of the motor shaft 45a. The arm 46 is provided with a rotating shaft 46a protruding leftward.
Further, the latch member 47 has a pipe-shaped shaft member 47a fixed at the upper end portion, and a latch portion having a hole formed at the lower end portion.
The latch member 47 is configured to be supported by the arm 46 with the rotation shaft 46 a inserted through the shaft member 47 a and pivotally supported.

Then, the latch member 47 and the cutting tension arm 48 are connected via a spring 65, a tension pulley 48 a is rotatably supported at the tip of the cutting tension arm 48, and wound around the cutting input pulley 53 and the cutting output pulley 51. A belt tension type mowing clutch 61 is configured so that the rotated V-belt 52 can be tensioned by a tension pulley 48a.
With this configuration, the motor 45 is operated to rotate the motor shaft 45a, and the arm 46 is rotated accordingly, whereby the latch member 47 is displaced substantially upward.
Then, the harvesting tension arm 48 is rotated so as to push down the tension pulley 48a (clockwise in FIG. 5), and the harvesting clutch 61 enters the “on” state, and the harvesting output pulley 51 receives the harvesting input via the V belt 52. Power is transmitted to the pulley 53.

The motor 45 employs a spring return type, and when the motor 45 is de-energized, the rotation angle of the motor shaft 45a returns to the original predetermined angle.
Thus, when the motor 45 is de-energized, the latch member 47 is displaced substantially downward and returns to its original position.
At this time, the cutting tension arm 48 is rotated so as to lift the tension pulley 48a (counterclockwise in FIG. 5), the cutting clutch 61 is in the “cut” state, and no power is transmitted to the cutting input pulley 53. .
That is, by the “on” and “off” operations of the cutting clutch switch 30, the cutting tension arm 48 is reciprocated to connect and disconnect the cutting clutch 61. However, the threshing clutch 60 and the mowing clutch 61 are not limited to the belt tension type clutch, and a multi-plate type clutch, an electromagnetic clutch, or the like can also be used.
The above is the description of the reaping clutch switch 30, which is a main part of the present invention.

Next, the linkage and operation of the threshing clutch lever 29 and the reaping clutch switch 30 will be described with reference to FIG.
At the time of the mowing operation, if the mowing unit 3 is operated when the threshing unit 12 is not operating, there is a problem that unprocessed corn straw that is not threshed is clogged in the threshing unit 12 or the feed chain 9. For this reason, when the threshing unit 12 is not operated, a function of protecting the reaping unit 3 from being operated is provided.
In this embodiment, the “ON” signal of the limit switch 38 is taken into the controller 63, and the “ON” signal of the limit switch 38 is not input even if the “ON” signal of the cutting clutch switch 30 is input. Does not output from the controller 63 to the motor 45, and constitutes an interlock circuit so that the mowing clutch is not in the “on” state.
Thereby, it can prevent that clogging generate | occur | produces in the threshing part 12 or the feed chain 9 by erroneous operation.

Further, as shown in FIG. 6, when the operator operates the threshing clutch lever 29 in the threshing clutch “off” state to rotate the threshing clutch lever 29 to the position of the threshing clutch “on” state, Then, the operator holds the grip portion 29b, and the cutting clutch switch 30 is located immediately below the operator's hand.
Then, when the mowing unit 3 is operated next, the mowing clutch switch 30 can be easily operated by slightly extending the hand forward.
That is, the operator can easily push the reaping clutch switch 30 to “turn on” the reaping clutch switch 30 with a natural flow of operation starting from the operation of the threshing clutch lever 29.
The above is the description of the linkage and operation of the threshing clutch lever 29 and the reaping clutch switch 30.

As shown in the above description, in the operation unit 14 of the combine 50 in which the side column 21 is disposed on the side of the seat 20 and the threshing clutch lever 29 is disposed on the side column 21, the cutting clutch 61 is disconnected on the side column 21. It is set as the structure which has arrange | positioned the cutting clutch switch 30 for contacting. Note that the threshing clutch lever 29 and the reaping clutch switch 30 may be arranged on the front column.
Since it comprised in this way, the operation which "turns on" and "turns off" the cutting clutch 61 can be performed easily. In addition, almost no operating force is required.

Further, the reaping clutch switch 30 is arranged in the vicinity of the “on” position of the threshing clutch lever 29.
Since it comprised in this way, the position of the cutting clutch switch 30 is easy to understand, and it can find and operate easily.

The reaping clutch switch 30 can be turned on only when the threshing clutch 60 is “on” and is turned off when the threshing clutch 60 is “off”.
With this configuration, erroneous operation can be prevented. Further, when the threshing clutch 60 is “disconnected”, the reaping clutch 61 can be automatically “disconnected”.

Further, the threshing clutch lever 29 is positioned in the vertical direction with respect to the operation panel 23 of the side column 21 when the threshing clutch 60 is “off”, and is parallel to the operation panel 23 when the threshing clutch 60 is “on”. The reaping clutch switch 30 is disposed below the tip (grip portion 29b) of the threshing clutch lever 29 when the threshing clutch 60 is “on”.
Since it comprised in this way, it can be set as a natural operation direction.

The side view which showed the whole structure of the combine which concerns on one Example of this invention. FIG. The perspective view which similarly showed the whole structure of the side column. The side view which showed the whole structure of the cutting clutch mechanism which concerns on one Example of this invention. The side view which similarly showed the whole structure of the threshing clutch mechanism. The schematic diagram which shows the relationship between a mowing clutch mechanism and a threshing clutch mechanism.

Explanation of symbols

14 Driving Unit 20 Seat 21 Side Column 29 Threshing Clutch Lever 30 Harvesting Clutch Switch 50 Combine 61 Mowing Clutch

Claims (4)

A side column is placed on the side of the driver seat,
In the operating part of the combine where the threshing clutch lever is arranged on the side column,
A cutting switch for connecting / disconnecting a cutting clutch on the side column;
Combine that features. Arranging the reaping switch near the “on” position of the threshing clutch lever;
The combine according to claim 1. The reaping switch can be turned on only when the threshing clutch is “on”.
That the threshing clutch is turned off when the clutch is off
The combine according to claim 2. The threshing clutch lever is
When the threshing clutch is turned off,
Located in a vertical direction with respect to the side column,
And at the time of the threshing clutch “on”,
It is configured to be parallel to the side column,
Below the tip of the threshing clutch lever at the time of the threshing clutch “on”,
Arranging the cutting switch,
The combine according to claim 2.

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