JP2004194622A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the remote operability of a grass divider of a combine harvester. <P>SOLUTION: This combine harvester is provided with a vertically movable reaping part 3 attached to the front part of a mobile body having a steering part 6, the reaping part 3 is provided with the grass divider 7 tiltable between a grass dividing posture extended sideways outward and a housing posture retracted inward in erected state, and an operation tool 8 interlocked with the divider 7 through a wire to remotely operate the posture of the grass divider 7 is placed at the steering part 6 of the mobile body 2. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, a mowing unit is provided at the front of a traveling body having a control unit so as to be able to move up and down, and the mowing unit swings between a weeding posture extending laterally outward and a retracted posture standing up and retreating inward. The present invention relates to a combine provided with a switchable weeding rod, and provided with an operation tool which is linked to the weeding rod via a wire and switches the posture of the weeding rod by remote control.
[0002]
[Prior art]
Conventionally, as this type of combine, there has been known a combine in which an operating tool is mounted on an upper portion of a device for raising a reaping unit (for example, see Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 7-8089
[Problems to be solved by the invention]
However, according to the above-described conventional technique, since the operating tool is located at a position relatively far in front of the control unit, it is difficult to operate the operating tool from the control unit, and the reaper has a cutting height. Since the operating tool is moved up and down for adjustment, the remote control of the weeding rod is relatively poor.
[0005]
An object of the present invention is to improve the remote controllability of a weeding rod.
[0006]
[Means for Solving the Problems]
The features, functions and effects of the combine according to the present invention according to claim 1 are as follows.
[0007]
〔Characteristic〕
A mowing part is provided at the front of the traveling body equipped with a control part so as to be able to move up and down freely, and the mowing part can be swingably switched between a weeding action posture that protrudes laterally and outward on this mowing part and a retracted posture that stands up and retreats inward. A combine having a weeding rod attached thereto, and an operating tool that is linked to the weeding rod via a wire and that remotely switches a posture of the weeding rod is provided, wherein the operating tool is installed in a control unit of a traveling body. It is in a point that has been.
[0008]
[Action]
The operating tool that is linked to the weeding rod via a wire is installed not on the mowing unit that changes the position up and down with respect to the traveling aircraft, but on the operating unit that is fixed in position relative to the traveling aircraft. The operating tool can be installed without being able to move up and down.
[0009]
〔effect〕
Accordingly, the operation of the operation tool at the control section can be performed satisfactorily, and the remote controllability of switching the position of the weeding rod can be improved.
[0010]
The features, functions and effects of the combine according to the present invention according to claim 2 are as follows.
[0011]
〔Characteristic〕
In the combine according to the first aspect of the present invention, the weeding rod is held in each posture by frictionally holding the operation tool.
[0012]
[Action]
Since the frictional force is directly applied to the operation tool to hold the weeding rod in each position, the operation resistance due to the frictional force is, for example, the frictional force is applied to the weeding rod to move the weeding rod in each position. As compared with the case where the operation tool is held, it is possible to directly act on the operator, and to give the operator a feeling that the operating tool is being operated directly.
[0013]
〔effect〕
Therefore, the operability can be improved in the sense of operation.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIG. 1 and FIG. 2, the combine has a detachable cutting section 3 for cutting and raising the planted grain culm and transporting it to the rear at a front portion of a traveling machine body 2 having left and right crawler traveling devices 1. The thruster 4 for threshing the culm from the mowing unit 3, a tank 5 for storing threshing kernels, and a boarding-type control unit 6 are connected to the traveling machine 2. The tank 5 is arranged on the left and right sides of the threshing device 4 and the control unit 6 is arranged on the front of the tank 5.
[0015]
As shown in FIG. 3, the reaper 3 can be freely switched between a weeding action posture extending laterally outward and a retracted posture standing upright and retracted inward by swinging around a longitudinal axis x. A weeding rod 7 is attached. The means for attaching the weeding rod 7 to the cutting unit 3 is such that the front end of the weeding rod 7 and the front end of the arm 7A connected in the middle between the front and rear are attached to the frame 3A of the cutting unit 3 around the longitudinal axis x. It is a means for swingably mounting.
[0016]
The control unit 6 includes a control seat 6A, a front control tower 6B located in front of the control seat 6A, and a side control tower 6C positioned on one side of the control seat 6A.
[0017]
As shown in FIGS. 4 and 6, the operating device for remotely changing the position of the weeding rod 7 is provided with a swingable operating lever 8 on a side control tower 6C of the control unit 6. The first wire 9a for swinging the weeding rod 7 to the weeding operation position by swinging the operation lever 8 to the weeding position and the weeding rod 7 being housed by swinging the operating lever 8 to the storage position. A second wire 9b for swinging to a posture, and a friction holding means for acting on the operation lever 8 and holding the position of the operation lever 8 by friction, thereby holding the weeding rod 7 in each of the postures. Is provided. The first wire 9a and the second wire 9b are both release wires, and both are examples of the wire 9.
[0018]
As shown in FIGS. 5 and 7, the connecting means for connecting the operating lever 8 to each of the wires 9a and 9b includes a connecting portion 8A for connecting the wires 9a and 9b of the operating lever 8 to a lever body 8B. It is detachably attached via the pin 11 and the retaining pin 14, and two attachment pins 11 are provided as regulating means for regulating the attachment posture of the connecting portion 8A with respect to the lever body 8B to a set posture, and are provided for the wires 9a and 9b. The receiving member 12 is configured to be detachably attached to the fixed portion 6a of the operation portion 6 through a plurality of bolts 13 in a set posture. The mounting pin 11 is fixed to the lever body B, and the retaining pin 14 is inserted into the mounting pin 11 and detaches from the mounting pin 11 by detaching the connecting portion 8A from the mounting pin 11 by elastically maintaining the inserted state. And the connection portion 8A is detached from the attachment pin 11 to allow detachment.
[0019]
The friction holding means acts on the pivot axis of the operation lever 8. As shown in FIG. 7, the friction lever 21 is attached to the lever mounting shaft 20 using bolts by two friction plates 21. These are set with the lever body 8B sandwiched therebetween, the first washer 22, the spring washer 23, and the second washer 24 are set, and the nut 25 is tightened in this state. 26 is a lock nut.
[0020]
The posture of the receiving member 12 with respect to the fixing portion 6a is regulated by being attached to the fixing portion 6a with a plurality of bolts 13.
[0021]
As shown in FIG. 8, the nut 16 screwed to the mounting bolt 15 which also serves as the swing support shaft of the weeding rod 7 is usually in a range for preventing the weeding rod 7, that is, the arm portion 7A from falling off. At the mounting portion of the arm 7A by the bolt 15 and the nut 16, a swing resistance due to friction is given to the arm 7A by tightening the nut 16, and the friction is released by loosening the nut 16. A spring washer 17a and a washer 17b are provided. That is, the mounting portion of the weeding rod 7 is provided with a preliminary friction posture holding means that can be switched between a state in which the weeding rod 7 is frictionally held in each posture and a state in which the weeding rod 7 is released. 16a is a lock nut.
[0022]
According to the above configuration, since the operation lever 8 is always located at the fixed position near the operator regardless of the elevation of the reaper 3, the remote attitude switching of the weeding rod 7 by operating the operation lever 8 is performed. It can be performed well.
Moreover, when removing the mowing part 3 from the traveling machine body 2, it is necessary to remove the wires 9a and 9b. However, in the above configuration, the receiving member 12 is removed from the fixing part 6a, and the connecting part 8A is removed from the lever body 8B. As a result, the ends of the wires 9a and 9b can be handled as an assemble. When the wires 9a and 9b are subsequently connected, the connecting portion 8A is attached to the lever main body 8B in a set posture, and the receiving member 12 is set to the fixed portion 6a. The operation lever 8 and the weeding rod 7 can be linked to each other in a predetermined linked state with good workability without requiring any special adjustment work.
In addition, since the holding position of the weeding rod can be directly held by the preliminary friction holding means in addition to the holding of the friction with the operating lever 8, for example, the malfunction of the holding of the friction with the operating lever 8 is reduced. Even if such a situation occurs or an unexpected situation such as cutting of the wires 9a and 9b occurs, the weeding rod 7 can be reliably held in friction in each posture.
[0023]
[Another embodiment]
In the above embodiment, two release wires 9a and 9b are provided as the wires 9, but the wire 9 may be a single push-pull wire. That is, the number of wires 9 does not matter.
[Brief description of the drawings]
FIG. 1 is a side view of the combine. FIG. 2 is a plan view of the combine. FIG. 3 is a front view of a main portion of the combine. FIG. 4 is a diagram of an interlocking system between the operation lever and the weeding rod. System diagram [Fig. 6] Cross-sectional view of operation lever mounting part [Fig. 7] Exploded perspective view of operation lever mounting part [Fig. 8] Cross-sectional view of weeding rod mounting part [Explanation of reference numerals]
Reference Signs List 6 Control part 2 Running body 3 Cutting part 7 Weeding rod 9 Wire 8 Operating tool

Claims (2)

A mowing part is provided at the front of the traveling body equipped with a control part so as to be able to move up and down freely. A combine having a weeding rod attached thereto, and an operating tool that is linked to the weeding rod via a wire and that switches a posture of the weeding rod by remote control, wherein the operating tool is installed in a control unit of the traveling body. Combine that has been done. The combine according to claim 1, wherein the weeding rod is held in each posture by frictionally holding the operation tool.

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