JP3426950B2 - Combine weeding equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine weeder and, more particularly, to a mowing unit in which a mowing unit is connected to the front of a self-propelled body equipped with a threshing device. Among the parts, a weeding tool that weeds the planted grain culm, a raising device that causes the weeded planted grain culm, and a cutting device that cuts the caused planted grain culm at the base of the plant, A self-propelled body includes a culm conveying device that conveys the cut harvested culm to the threshing device, and a non-cutted ground side weeding rod that extends from the uncut land side weeding tool to the traveling device of the self-propelled body. On the other hand, the position can be changed freely within the setting range in the left and right direction, and the weeding action posture with the uncut land side weeding rod protruding left and right outward and standing along the side surface of the self-propelled body The present invention relates to a combine weeding device that is configured to be able to freely change a swinging posture in a stored posture. [0002] When the above-mentioned combine is used, the whole of a weeding tool, a raising device, a cutting device, a grain culm transporting device, and an uncut ground side weeding rod (hereinafter referred to as a "cutting portion") is used. The mowing is performed by positioning the running machine so that it protrudes to the uncut side (outward side), so that the traveling device has sufficient distance from the planted grain culm to prevent the mud fogging of the planted grain culm. Falling can be suppressed, and by performing the middle splitting work with the mowing portion positioned inside the self-propelled body, the middle splitting work can be performed favorably. [0003] In such a combine, conventionally, when the mowing portion is positioned outside and the ridge cutting is performed, the uncut ground side weeding rod is positioned in the retracted posture. [0004] However, according to the above-described conventional technique, when the ridge is low, it is easy to avoid contact of the uncut grass side grass rod with the ridge. When the height was high, the weeding rods on the uncut land contacted the ridges, and when the ridges were made of concrete, the weeding rods could be damaged. [0005] It is an object of the present invention to avoid contact of the uncut ground side weeds with the ridges when cutting the ridges with the mowing portion positioned outside. [0006] The features, functions and effects of the first invention according to claim 1 are as follows. [0007] the front of the self-propelled vehicle body equipped with [Characteristics] threshing apparatus, and minutes grass tool for dividing grass planting standing culms, and to cause causing partial grass has been planted culms device, caused From a cutting device that cuts the planted grain culm at the root of the stock, a grain culm transport device that conveys the cut and harvested grain culm to the threshing device, and a traveling device of the self-propelled machine from the weeding tool on the uncut side It was assembled and non-harvest land side divided grass rod over to
Reaper connecting the, the reaper and position changes operably configured within the set range in the horizontal direction with respect to self-propelled vehicle body to the left and right outwardly flared min grass effect the non-cutting point side partial grass rod In the combine which is configured to be able to change the swinging posture between the posture and the stowed posture standing along the side of the self-propelled body, the range in which the swinging posture of the uncut ground side weeding rod can be changed is set to the left and right.
The end on the outer side in the direction protrudes toward the uncut land side
Weeding action posture position, the end on the inner side in the left and right direction,
A self-propelled machine in a state where the position of the mowing part is changed to the uncut land side
It is located on the uncut area side of the uncut area end of the body and is
A self-propelled aircraft with the mowing part repositioned to the cut area
To the cut area rather than the uncut area end
Is set beyond the storage posture position so that
Both of them have already been moved beyond the retracted
Setting an operably stopper switches the oscillation of the cutting point side to a release position for releasing the blocking and blocking position of abutment preventing
Only, lies in the fact it has urged operating the stopper to prevent attitude. [0008] According to the first aspect of the present invention, as the uncut ground side weeding rod, the cutting portion is moved to the self-propelled body side beyond the storage position with the cut portion changed to the uncut ground side. When the mowing part is positioned outside and mowing on the ridge, the uncut land side weeding rod is swung to the self-propelled body side beyond the retracted posture. In addition, it is possible to avoid contact of the uncut ground part grass rods with the ridges by positioning the uncut land side part grass rods away from the ridges. Further, unless a stopper is provided and the stopper is switched to the release position, the swinging operation of the uncut ground side weeding rod to the self-propelled body side beyond the storage position cannot be performed. Therefore, the worker can be conscious of the swinging operation of the uncut ground side weeding rod on the self-propelled body side beyond the storage position, and when repositioning the reaping part inward, Conscious of the switching operation of the uncut grass side weeding rod to the retracted position or the weeding action posture, and with the uncut grass side weeding rod swinging toward the self-propelled aircraft side, move the mowing part inward. By changing the position, it is possible to sufficiently suppress collision of the uncut land side weeding rod with a self-propelled body such as the side wall of the threshing device. In addition, the stopper is actuated to the blocking position to
Swing the non-cutting side split grass rod from the grass action posture to the stowed posture
Inadvertently, move the weeds on the uncut land side beyond the storage position
To prevent swinging toward the self-propelled aircraft.
Therefore, the grass rod on the uncut area was swung toward the self-propelled
Can be more noticeable to workers
On the uncut area with the mowing part positioned on the inner side
Even when switching the weeding rod to the retracted position,
Of the grass on the uncut side of the
No. [Effect] Therefore, according to the first aspect of the present invention, it is possible to prevent damage to the uncut ground side weeding rod due to contact with the ridge, and for that purpose, the uncut ground side weeding rod is moved by the self-propelled body. It has become possible to provide a combine weeding device capable of avoiding damage caused by collision with as much as possible. In addition, the damage to the uncut land side grass rods
Can now be prevented. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, FIG. 2, FIG. 5, and FIG. The mowing unit 5 is connected to the front part of a self-propelled body 4 equipped with the threshing device 2 and the boarding operation unit 3 so as to be capable of swinging up and down and changing the position within a set range in the left-right direction. I have. The cutting section 5 includes a plurality of weeding tools 6 that juxtapose the planted grain culm juxtaposed in the left-right direction, and a pair of left and right that cause the planted grain culm juxtaposed side by side in the left-right direction. A raising device 7, a clipper-type cutting device 8 for cutting the raised planted grain culm at the root of the plant, a grain culm conveying device 9 for conveying the cut and harvested grain culm to the threshing device 2, Uncut land side weeding rod 10 that extends from the weeding implement 6 on the cut side to the traveling device 1
Are attached to the self-propelled body 4 so as to be able to swing up and down around the axis P in the left-right direction and freely change the position in the left-right direction. As shown in FIG. 3, the lifting means for raising and lowering the cutting frame 11 swings up and down around a left-right axis Q while the cutting frame 11 is slidably mounted in the left-right direction. The swing frame 12 that swings the cutting frame 11 up and down around the axis P in the left-right direction is attached to the self-propelled body 4, and an elevating cylinder 13 using a hydraulic cylinder that swings the swing frame 12 up and down is provided. It is configured. As shown in FIG. 4, the changing means for changing the position of the cutting frame 11 in the left-right direction includes a screw feed mechanism for changing the position of the cutting frame 11 to the left and right with respect to the self-propelled body 4 and the swing frame 12. 14 and an electric motor 15 for driving the screw feed mechanism 14 is provided. As shown in FIGS. 1, 2, 5, and 6, the uncut ground side weeding rod 10 is slidably pivotable about a rearwardly falling axis p at a front end portion and a front-rear intermediate portion. Frame 1
As shown in FIG. 6, when the position is changed to the uncut side (outward side), as shown in FIG.
A weeding posture that protrudes in a laterally outward position, a stowed posture standing along the side surface of the self-propelled vehicle 4, and a ridge posture that leans toward the self-propelled vehicle 4 beyond the stored posture It is configured to be changed, and as shown in FIG.
In the state in which the position has been changed to the inward side, the posture is changed by swinging between a weeding posture that protrudes left and right outward in a lying state and a stowed posture that stands up along the side surface of the self-propelled body 4. It is configured as follows. Then, as shown in FIGS. 7 and 8, the combine frictionally holds the uncut ground side weeding rod 10 in each swinging posture in the entire swinging range between the weeding operation posture and the ridge-side posture. A posture holding means, and a stopper 16 operable to be switched between a blocking posture for preventing contact with rocking to the ridge posture side beyond the storage posture of the uncut land side weeding rod 10 and a releasing posture for releasing blocking. And The posture holding means is provided with a friction holding force applied to the uncut ground side weeding rod 10 which is rockingly positioned in the main rocking range A extending between the weeding posture and the stowed posture in the entire rocking range. This is a means for imparting a weak friction holding force to the uncut ground side weeding rod 10 swinging in the sub-oscillation range B closer to the ridge posture than the storage posture, and specifically, FIG. As shown in FIG. 8, a mounting portion 10 a in the middle of the front and rear of the uncut ground side weeding rod 10.
A spring 18 for elastically pressing the spring against the friction plate 17 is provided, and a cam mechanism 19 for changing the pressing force by the spring 18 according to the swinging posture of the uncut ground side weeding rod 10 is provided. The frictional holding force applied to the uncut ground side weeding rod 10 located in the main swing range A is such that the uncut ground side weeding rod 10 resists the reaction force received from the planted grain culm during weeding. This is a force sufficient to maintain the posture, and the weak friction holding force applied to the uncut side weeding rod 10 located in the sub-oscillation range B is self-propelled due to the inward position change of the reaper 5. When the vehicle collides with the side surface of the body 4, the force is large enough to be able to swing backward with the collision. The friction plate 17 also serves as a support plate for swingably supporting the mounting portion 10a via a support shaft 20 using bolts. The spring 18 is provided on the friction plate 17.
A guide pin 22 using a bolt, which guides the swinging of the uncut ground side weeding rod 10 by being inserted into the arc-shaped long hole 21 around the rearwardly falling axis p formed as described above, is installed as a spring guide. The cam mechanism 19 includes a stepped portion 2 on the friction plate 17.
3 to form a large pulling force cam surface 19a and a low pulling force cam surface 19b.
The mounting portion 10a is interposed between the head of the bolt and the friction plate 17 as a cam follower 19A that slides on the 9a and the small pulling force cam surface 19b. When the cam follower 19A is in the swinging position, the cam follower 19A is brought into contact with the cam surface 19a having a large pulling force so that the guide pin
2 to increase the amount of tension to greatly compress and deform the spring 18 to increase the applied friction holding force,
The cam follower 19A is brought into contact with the small cam surface 19b when the uncut land side weeding rod 10 swings in the sub-oscillation range B on the ridge posture side to reduce the amount of pulling on the guide pin 22. It is configured to reduce the applied friction holding force by reducing the amount of compressive deformation of the spring 18. The stopper 16 is switched between a stopping position (see FIG. 7A) and a releasing position (see FIG. 7B) by swinging, and is stopped via a helix spring 24. It is urged to swing. Then, in the blocking posture, the swinging of the uncut ground side weeding rod 10 toward the ridge posture side is prevented by abutting from the direction perpendicular to the uncut ground side weeding rod 10 in the storage posture, and the blocking posture Is slightly lifted from the position, and is switched to the release position by being pressed by the uncut ground side weeding rod 10 swinging to the storage posture side in the state of the swing operation, that is, to the storage posture side of the uncut ground side weeding rod 10. Swing is allowed. According to the above configuration, as shown in FIG.
The mowing part 5 is positioned on the outer side, and the swing posture of the uncut ground side weeding rod 10 in the main swing range A is adjusted in accordance with the state of lodging of the planted grain culm, and the surrounding mowing is performed. As shown in FIGS. 2 and 5, the mowing unit 5 is positioned on the inner side, and the swinging posture of the uncut ground side weeding rod 10 within the main swing range A is determined based on the state of lodging of the planted grain culm and the like. In accordance with the above, the middle splitting work is performed, the mowing part 5 is positioned on the outer side, the uncut ground side weeding rod 10 is swung to the ridge position, and ridge cutting is performed. A stopper 16 is provided which is urged to swing to the blocking position, so that when the uncut land side weeding rod 10 is swung to the ridge position, it is necessary to switch the stopper 16 to the release position. Therefore, it is easy for the worker to be aware that the uncut land side weeding rod 10 is in the ridge-side posture. By changing the position of the mowing unit 5 inward without switching to the feeding posture or the weeding operation posture, the uncut ground side weeding rod 10 collides with the side surface of the self-propelled body 4 such as the side wall of the threshing device 2. It is easy to avoid such a situation, and it is also easy to prevent the uncut land side weeding rod 10 from being erroneously rocked to the ridge position while the mowing part 5 is located on the inner side. In addition, even when the position of the mowing unit 5 is changed inward while the uncut ground side weeding rod 10 is in the ridge position, the uncut ground side weeding rod 10 is moved in the main swing range A. When the uncut land side weeding rod 10 is in the ridge position, the friction holding force for holding the posture is weaker than the friction holding force when the rocking position is at the swing position. In the above, while performing good weeding while securely holding the posture of the uncut ground side weeding rod 10 against the reaction force from the planted grain culm,
The impact of the collision is relieved by the reciprocation of the uncut ground side weeding rod 10 due to the collision, and the uncut ground side weeding rod 10 and the self-propelled body 4 can be prevented from being damaged as much as possible. it can. [Alternative Embodiment] In the above embodiment, the stopper 16 is provided to be operatively urged to the blocking position. However, the stopper 16 is switched between the blocking position and the releasing position by manual operation. It may be something. In the above-described embodiment, the stopper 16 whose posture is changed by swinging is shown. However, the stopper 16 swings from the retracted posture of the uncut land side weeding rod 10 to the self-propelled body 4 side. It may be possible to freely move back and forth with respect to the radial path, to assume a blocking posture by projecting, and to assume a releasing posture by retreating. In the above embodiment, the entire mowing unit 5 is configured so that the position of the mowing unit 5 can be freely changed in the left-right direction. Into a slide frame that can be repositioned in the left and right direction. The weeding tool 6, the raising device 7, the cutting device 8, the grain culm transport device 9, and the uncut ground side weeding rod 10 are mounted on the slide frame. It is also possible to mount and implement them so that the position can be freely changed in the left and right direction by sliding the slide frame.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a combiner. FIG. 2 is a plan view of a combiner in a state where a cutting unit is changed inward. FIG. 3 is a side view of a lifting unit of the cutting unit. FIG. 5 is a schematic front view of a combiner with a reaper being changed inward, and FIG. 6 is a schematic front view of a combiner having a reaper changed in position outside. FIG. 8 is a front view showing a change in the posture of the uncut ground side weeding rod. FIG. 8 is a cutaway plan view of the posture fixing means of the uncut ground side weeding rod. [Description of References] 1 Running device 2 Threshing device 4 Self-propelled body 5 Cutting part 6 Weeding tool 7 Raising device 8 Cutting device 9 Grain stalk transport device 10 Uncut ground side weeding rod 16 Stopper

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 63/00-63/04

Claims (1)

(57) [Claims] [Claim 1] At the front of a self-propelled body equipped with a threshing device ,
And minutes grass tool for dividing grass planting standing culms, and to cause causing partial grass has been planted culms device, a cutting device for cutting the triggered planted culms in Kabumoto portion, cutting is cut The culm conveying device that conveys the culm to the threshing device, and a cutting unit that is assembled with an uncut land side weeding rod that extends from the uncut land side weeding tool to the traveling device of the self-propelled body , the reaper within the setting range in the lateral direction with respect to the self-propelled vehicle body
Position and location change operably configured, freely the upright stored position and the swinging posture change operation in a state along the non-cutting point side partial grass rod to the side of the minute grass action posture overhanging horizontally outward self airframe In the combine configured as described above , the range in which the swing posture of the uncut land side weeding rod can be changed is set to the left.
The outer end in the right direction is before it overhangs the uncut area
Inscribed weeding position and the inner edge in the left-right direction
Is a state in which the position of the reaper is changed to the uncut land side.
Is located closer to the uncut area than the uncut area end of the
Self-propelled in a state where the position of the mowing part has been changed to the side of the cut ground
For the aircraft, from the uncut side to the cut side
Be set beyond the storage posture position so that
Rutotomoni, already cutting point side of beyond the stored position of the non-cutting land side divided grass rod
A weeding device for a combiner which is provided with a stopper operable to switch between a blocking position for preventing contact with rocking and a releasing position for releasing blocking, and urges the stopper to the blocking position. .