JP2001269031A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a glass divider 3 from engaging with the ground, weeds, etc., in a combine harvester in which a reaping part equipped with a glass divider 3 for divide-treating planted cereal culms, a raising up device for raise- treating the planted cereal culms from the glass divider 3, a reaping device for reap-treating the raised up cereal culms and a conveying device for supplying the reaped cereal culms to a threshing device, is linked with a traveling machine frame so as to be operated as lifted up and down by a driving mechanism. SOLUTION: This combine harvester is provided by supporting the glass divider 3 to a frame 2 of the reaping part 1 through a glass divider-supporting body 6 to which the divider 3 is linked as capable of freely swinging up and down, installing a controlling means for operating the driving mechanism automatically in lifting up side based on information from a detecting switch 13 for detecting a lifting up swing when the glass divider 3 makes a lift up swing more than a set angle based on the divider-supporting body 6, also installing the glass divider-supporting body 6 with the frame 2 freely detachably and supporting the detecting switch 13 at the glass divider-supporting body 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine which is connected to a traveling machine so that a mowing part provided with a weeder for weeding and raising a planted cereal stem is introduced into an apparatus by a drive mechanism. .

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Laid-Open Publication No.
As disclosed in Japanese Patent Application Publication No. 7-1995, the cutting section is provided with a cutting height control means for maintaining a value detected by an ultrasonic cutting height sensor at a target ground height. At a location separated in the aircraft lateral width direction, a ground-type ground proximity state detection sensor that detects a proximity state in which the ground height has become equal to or less than a set value is provided, and the ground proximity state detection sensor exceeds the set number of times within a set time. There is a combine in which the cutting height control means is configured to correct the target ground height to a higher side when many proximity states are detected. This is a measure against the rolling of the aircraft, and at the same time, in the past, the cutting height was set high to prevent the weeder from contacting the ground, but the cutting height was lowered, The idea is to reduce the height of stumps as much as possible.

[0003]

However, when performing a harvesting operation using a combine, it is inevitable to cause rolling and pitching of the body due to unevenness of the ground. In other words, on the ground, there are footprint holes, drainage grooves, etc. generated in a soft state, and even if the traveling device is a crawler type traveling device, it is unavoidable to cause the body to shake due to the unevenness. It is. For this reason, in the conventional combine, the aircraft causes pitching,
In some cases, such as when there is a bulge ahead, a weeding tool provided in front of the fuselage may plunge into the ground, or the leading end of the weeding tool may be caught by weeds, straw chips, or the like in front. The above ground proximity state detection sensor is provided as a countermeasure against the front bulge, for example, there is a groove at the position where the height above ground is detected by an ultrasonic ground height sensor, or the side is raised. In such a case, as a measure against the fact that the mowing unit is controlled to a substantially lower position, the target ground height is corrected upward when the proximity state detection sensor detects the proximity state.

[0004] However, in the above-mentioned combine, although the proximity sensor for detecting the proximity to the ground is provided, the proximity to the ground detected by the sensor is on the left and right sides of the fuselage. However, it is difficult to completely prevent the weeding implement from catching on such a forward bulge or a weed mass, and it has not been sufficient yet. Also, even if this ground proximity state detection sensor is provided in front of the above, it does not predict and detect pitching of the aircraft, and since this sensor is provided at the lower part of the weeding implement,
At the time of the pitching or when the front bulge or weed mass is detected by the ground proximity state detection sensor, the tip of the weeding implement is grounded, so that soil or straw is applied to the ground proximity state detection sensor. There is room for further improvement in that it is easy to adhere, and sometimes the adhered soil or straw may sometimes hinder its operation.

Accordingly, an object of the present invention is to provide a combine which can prevent a weeding tool from being caught on the ground or weeds.

[0006]

The constitution, operation and effect of the invention according to claim 1 are as follows.

According to a first aspect of the present invention, there is provided a weeding tool for weeding a planted cereal culm, an apparatus for causing and processing the planted cereal culm from the weeding tool, and a mechanism for cutting off the cultivated cereal culm. The harvester, which is provided with a harvesting device to be processed and a harvesting unit including a transporting device for supplying the harvested grain culm to the threshing device, is connected to a traveling machine so as to be moved up and down by a drive mechanism. The mowing part is supported by the frame of the mowing part via the movably connected weed support, and when the weed is raised and swung above the set angle with respect to the weed support, A control means for automatically operating the drive mechanism on the mowing section rising side based on information from a detection switch for detecting movement is provided, and the weeding implement support is detachably attached to the frame, Said Certain output switches on a point which had been supported by the partial grass tool support.

According to the combine according to the first aspect of the present invention, since the weeding tool is swingably attached to the weeding tool support, when the tip of the weeding tool comes into contact with the ground, In order to avoid this, when the weeding implement swings upward and the weeding implement rises and swings more than the set angle, the control means moves the weeding implement together with the mowing part.
Therefore, when the lower part of the tip of the weeding tool comes into contact with a protruding object (such as a bulge or a mass of weeds) in front, the weeding tool naturally swings and rises, and the tip of the weeding tool rises. It can be prevented from being caught on a raised object. Further, when the upward swing of the weeding implement reaches the set angle, the driving mechanism is automatically operated by the control means, and the reaping unit is operated to ascend. Can be avoided. That is, the weeding tool itself functions as a ground contact detection sensor. In addition, since a detection switch for detecting that the weeding tool swings upward and reaches a set angle is attached to the weeding tool support, the set angle for the upward swinging of the weeding tool is detected. If it is set with a switch, the weeding implement detachably attached to the frame of the aircraft via the weeding implement support is removed from the frame. There is no need to adjust again.

[Effect] Therefore, even if the cutting height is kept low, the weeding implement swings upward when the weeding implement touches the ground, so that a large force due to the grounding does not act on the weeding implement itself.
The weeding tool itself can be protected from damage, and when the rising swing reaches the limit, the entire reaping part rises, so the combine can be driven without paying attention to the height of the weeding tool,
The life of the weeding tool can be extended. Further, even if the weeding implement is detached for replacement or repair, the set angle for the upward swing can be maintained without readjustment.

The construction, operation and effect of the invention according to claim 2 are as follows.

According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, a cutting height sensor for detecting a ground height of the cutting device and a detection height of the cutting height sensor are set. A cutting height control means for automatically operating the drive mechanism based on information from the cutting height sensor so that the height becomes the height, and the control means has priority over the cutting height control means. The point is that the drive mechanism is configured to be operated.

[Action] By providing cutting height control means for automatically operating the cutting height based on information from the cutting height sensor, the cutting height is automatically adjusted within a predetermined range. On the other hand, when the rising swing of the weeding implement is detected by the detection switch, the operation of the drive mechanism by the control means is given priority over the operation of the cutting height control means, and the cutting section is raised.

[Effect] Since the reaping unit is automatically controlled to move up and down, there are many cases where the operation is performed without paying much attention to the condition of the reaping unit, or when the cutting height is set low. However, even in this case, the combine can be stably operated without the weeding tool being caught by the soil mass, the weed mass, or the like.

[0014]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show an example of a combine according to the present invention. In this combine, a traveling body 30 is supported by a pair of left and right crawler traveling devices 31, and a mowing unit 1 is provided at a front end of the traveling body 30.
And threshing device 3
3. The boarding operation unit 32, the grain storage unit 34, and the like are mounted.

The cutting section 1 includes a weeding tool 3 for weeding the planted grain culm, a raising device 16 for raising and processing the planted cereal culm from the weeding tool 3, and a reaping process for the raised grain culm. Harvesting device 17 and threshing device 33
And a transport device 18 for feeding the frame 2 to a frame 2 pivotally supported by a traveling machine body 30 so as to be able to swing up and down around the axis of the horizontal axis. A control device 20 is provided for operation. A cutting height sensor 23 for detecting the ground height of the cutting device 17 and the cutting height sensor 23 based on information from the cutting height sensor 23 so that the height detected by the cutting height sensor 23 becomes a set height. A cutting height control means 22 for automatically operating the drive mechanism 21 is provided in the control device 20 (see FIG. 3).

As shown in FIG. 4, the weeding tool 3 is supported by the frame 2 of the cutting unit 1 via a weeding tool support 6 which connects the weeding tool 3 up and down freely. The weed support 6 is detachably fixed to the frame 2 using fixing bolts B. The weeding implement 3 is pivotally attached to a support plate 7 erected on the weeding implement support 6 by a pivot pin member 8 via a mounting plate member 4 provided on the back surface thereof.
When the weeding implement 3 rises and swings relative to the weeding implement support 6 at a set angle or more, the drive mechanism 21 is moved to the reaping section ascending side based on information from the detection switch 13 which detects this ascending swing. The control means 24 for automatically operating the control device 2
It is prepared for 0. The control means 24 includes the control device 2
The driving mechanism 21 is configured to be operated prior to the cutting height control means 22 via a cutting section operation mechanism 25 connected to the drive mechanism 21 (see FIG. 3).

The attachment structure of the weeding implement 3 will be described in detail. As shown in FIG. 4, the rod-shaped weeding implement support 6 is inserted into the front end of the tubular frame 2 and fixed. B is fixed so as to prevent slipping out and falling down. The mounting plate member 4 is provided upright behind the weeding implement 3, and the pivot pin member 8 is provided with respect to the support plate 7.
Pivoted by The mounting plate member 4 is formed with an arc-shaped long hole 19 centered on the axis of the pivot pin member 8, inserted into the arc-shaped long hole 19, and fixed to the support plate 7. The relative swing angle of the weeding implement 3 with respect to the weeding implement support 6 is regulated by the positioning pin 9. In this way, the detection switch 13 and its operating mechanism are attached to the weed support 6 integrally connected to the weed 3. Further, a sled-shaped grounding member 5 having a front end warped upward is provided at a lower portion of the weeding implement 3, and the cutting height adjusted by the cutting height control means 22 is provided for the weeding implement 3. When the weeding implement 3 is easily pushed into the place, the grounding member 5 slides with respect to the high place, and the weeding implement 3 is connected to the pivot pin member. It rises and oscillates around 8.

As shown in FIGS. 4 and 5, a bracket 10 is set up on the weed support 6 as shown in FIGS. The bracket 10 includes a front first plate member 11 and a rear second plate member 12, and the two are parallel to each other.
Each of them is attached to the upper side of the weed support 6 at intervals. The two plate members 11 and 12 are bent rearward (toward the frame) above the through holes, respectively, and connect the first plate member 11 to the upper end of the second plate member 12. is there. The first plate member 11 extends further rearward and is bent downward at the rear end. The detection switch 13 is attached to a portion of the first plate member 11 bent downward. The detection switch 13
At a height position, the detection rod 13 is inserted in the length direction of the weeding implement support member 6 through the both plate members 11 and 12, and the detection switch 13 is operable to be pushed. is there. The length of the detection rod 14 is adjustable and fixed, and is urged forward by a coil spring 15 so that its front end is in contact with the rear edge of the mounting plate member 4. A pin for receiving the urging force of the coil spring 15 is inserted in the detection rod 14, and the pin is restricted from protruding more than necessary by the pin. When the weeding implement 3 rises and swings, the detection rod 14 is pushed by the rear end edge of the mounting plate member 4 and contacts the detection switch 13. When a predetermined swing angle is reached, the length is adjusted so that the detection switch 13 is operated. As a result of the above-described configuration, since the detection switch 13 is integrally connected to the weeding implement support 6, even if the weeding implement 3 is removed from the reaper 1,
When attaching it to the frame 2 again, it is not necessary to readjust the set angle for operating the detection switch 13. Therefore, attachment and detachment of the weeding implement 3 to and from the reaper 1 becomes extremely easy.

With the above arrangement, the cutting height sensor 23 detects the cutting height in the vicinity of the cutting device 17 of the cutting unit 1, and the cutting height control means 22 adjusts the cutting height while setting the planted grain culm. Even when the weeding tool 3 reaches a high place such as a bulge or a weed mass in the forward direction, the weeding tool 3 rises and swings around the pivot pin member 8, It is possible to prevent the weeding implement 3 from sticking into the bulge, the weed mass, or the like. In addition, since the distal end of the grounding member 5 is warped, the weeding implement 3 easily rises and swings. Therefore, if the upward swing of the weeding implement 3 exceeds the set angle, the detection switch 13 is pushed through the detection rod 14 to control the weeding implement 3.
The control means 24 switches the cutting unit operating mechanism 25, operates the driving mechanism 21 in preference to the cutting height control means 22, and raises the cutting unit 1 because the control unit 24 transmits the grounded information. It is possible to prevent the grass 3 from continuing to touch and rush forward. If the angle of the upward swing of the weeding implement 3 becomes small and the pressing operation of the detection switch 13 is released, the cutting height control of the cutting unit 1 is again entrusted to the cutting height control means 22. Can be In addition, 26 shown in FIG. 3 is a cutting height setting device. That is, the ground height of the reaper 17 which is maintained by the elevation control of the reaper 1 by the vegetation height control means 22 is set.

[Another Embodiment] An example in which the control device 20 is provided with the cutting height control means 22 and the control means 24 has been described with reference to FIG. 3, but the control device 20 is replaced by the cutting height sensor. The control operation as the control unit based on the information from the detection switch 13 is prioritized over the control operation as the cutting height control unit based on the information from the control unit 23 (in the illustrated example, the mowing unit operating mechanism). It corresponds to 25 functions.) It may be configured.

Further, the weeding implement 3 is attached to the weeding implement support 6.
The means for swingably attaching to the support plate 7 is arbitrary, and is not limited to the configuration in which the attachment plate member 4 is pivotally supported on the support plate 7 described above. For example, it may be connected to the weeding tool support 6 by double links having different leg lengths.

Further, in the above-described embodiment, the configuration in which the detection switch 13 is pushed through the detection rod 14 has been described. However, any mechanism capable of detecting the swing angle and transmitting the information may be used. The configuration is not limited to the configuration shown in FIG. In short, it is only necessary that the detection switch 13 that can detect the relative swing angle between the weeding tool support 6 and the weeding tool 3 be provided on the weeding tool including the weeding tool support 6. This means may be attached to the weeding device 3 side.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a combine according to the present invention.

FIG. 2 is a plan view of the combine shown in FIG. 1;

FIG. 3 is a configuration explanatory view showing an example of a control device for controlling a cutting height.

FIG. 4 is a side view of a main part of a mowing part, illustrating an example of a mounting state of a weeding tool.

FIG. 5 is a partially cut plan view showing a main part of the weeding tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cutting part 2 Frame 3 Weeding tool 6 Weeding tool support 13 Detection switch 16 Raising device 17 Cutting device 18 Transport device 21 Drive mechanism 22 Cutting height control means 23 Cutting height sensor 24 Control means 30 Traveling machine 33 Threshing device

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Towa Terao 64 Ishizukitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Works (72) Inventor Kazuhiko 64 Ishizukitamachi Sakai City, Osaka Prefecture Kubota Sakai Corporation Inside the factory (72) Inventor Tamotsu Seiya 64, Ishizukita-cho, Sakai City, Osaka Prefecture Inside the Kubota Sakai Factory (72) Inventor Yasuhiko Katayama 64, Ishizukita-cho, Sakai City, Osaka Prefecture F-term in Kubota Sakai Factory 2B076 AA03 BA02 BA05 CA03 EB05 EC23 ED30 2B081 AA01 CC41 CC45 DA09 DA18 2B304 KA16 LA02 LA13 LB02 MA03 PD31 QA30 QB02 QB12 QB30 QC04 RA17 2B382 GA09 GC03 GC04 HB02 HF02 HF14 LA27 LC17 LB02 LB06 LB06 MA02

Claims (2)

[Claims] 1. A weeding tool for weeding a planted grain culm, a raising device for raising and processing the planted grain culm from the weeding tool, a cutting device for cutting and processing the raised grain culm, and threshing the cut grain culm. A combiner which is connected to a traveling body so that a mowing unit provided with a transport device to be supplied to the device is moved up and down by a drive mechanism, wherein the weeder is connected to be able to swing up and down. While being supported by the frame of the mowing unit via the weed support, and when the weeding implement rises and swings at a set angle or more with respect to the weeding implement support, a detection switch for detecting this ascending swing is used. Control means for automatically operating the drive mechanism on the side of the reaping section ascending based on the information, wherein the weeding implement support is detachably attached to the frame, and the detection switch is attached to the weeding implement. Support on support Combine which had been. 2. A cutting height sensor for detecting a ground height of the cutting device, and the drive based on information from the cutting height sensor such that a height detected by the cutting height sensor becomes a set height. The combine according to claim 1, further comprising cutting height control means for automatically operating a mechanism, and wherein said control means is configured to operate the drive mechanism prior to said cutting height control means.