JPH1146553A - Three row-cutting harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three row-cutting harvester simple in structure and capable of highly surely reaping culms without unreasonably pushing down the guided culms. SOLUTION: In this three row-cutting harvester, a pair of right and left lateral rotation type raising devices are arranged in a state that raising routes for upwardly moving raising tines 16 are faced to each other, and routes where the raising tines 16 are laterally moved to the raising routes in projected postures are disposed at the lower ends of the raising devices 8, respectively. A grass divider 18 disposed between both the raising routes and having a front edge lowered toward the front side is disposed so as to have the grass-dividing action up to the approximately same height as the final ends of both the raising routes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-row harvester such as a combine or a binder.

[0002]

2. Description of the Related Art Conventionally, as a three-row harvester, for example, as disclosed in Japanese Unexamined Patent Publication No. 9-182516, a cutting pretreatment device usually configured for two-row cutting is used for three rows. Japanese Patent Application Laid-Open No. 9-94, in which the spacing between the weeding tools at the left and right ends is larger than two rows so that the stems and stems can enter.
As disclosed in Japanese Patent Application Publication No. 024, it is well known that three side-by-side raising devices are arranged side by side.

[0003]

However, in the former configuration, two-row cutting is usually performed, so that three portions are barely inserted between the weeding tools at both ends. When the stalk is in a stalk, the stalk and stalk is in a meandering state, or the stalk and stalk to be trimmed is likely to be detached from the cutting width due to a steering error, and the stalk and stalk may be pushed down by a weeding tool or the like. was there. Further, in the latter configuration, since the three raising devices are arranged side by side on the left and right, the number of the raising devices is increased, and there is a disadvantage that the cost is increased.

The present invention has been made in view of the above-mentioned circumstances, and provides a three-row harvester that has a simple structure and that can cut with high certainty without unduly pushing down an introduced stem. Aim.

[0005]

[Means for Solving the Problems]

(Structure) In the three-row harvester according to claim 1 of the present invention, a pair of left and right raising devices of a horizontal rotation type are arranged in such a manner that the raising paths for raising the raising claws face each other. A path at which the raising claw is laterally moved to the raising path in a protruding posture at a lower end of each of the raising apparatuses, and is disposed between the both raising paths, and a front edge which is lower toward the front side. The herbicidal body provided with is characterized in that it has a weeding function up to almost the same height as the end of the both raising paths of the both raising devices.

According to the first aspect of the present invention, at the lower end side of the pair of left and right horizontal turning type raising devices, the raising claw reaches the raising path in a state of laterally moving. When reaching the raising path, even if there is a certain distance between the left and right ends of the respective raising claws of the pair of right and left raising devices, the herbivore is almost at the end of the both raising paths in a state where the gap is filled. Since it is arranged so as to have a weeding action up to the same height, even if it has a wide pair of right and left erecting devices arranged to the left and right so that three stems can be introduced, the stem culm is It does not prevent you from being able to wake up with the raising nail.

(Effects) Therefore, according to the configuration of the first aspect of the present invention, a pair of left and right horizontal turning-type raising devices are arranged in a state where they are widened to the right and left so that three stems can be introduced. At the same time, a herbaceous body will be provided in the middle of the left and right so as to fill the space between the left and right elevating paths,
Harvesting and harvesting of three stalks can be performed reliably without pushing down the stalks. Furthermore, since the horizontal type raising device can be reduced by one, the configuration can be reduced in cost.

(Structure) A three-row harvester according to claim 2 of the present invention is the harvester according to claim 1, wherein the weeds are constituted by a vertical turning type stem and stem raising device. It has a characteristic configuration.

(Action) According to the configuration of claim 2 of the present invention, the herbaceous body is constituted by a vertical-rotation type stem / culm raising device, so that the lodging stem can have a pair of left and right raising / lowering devices. Even when the stem is introduced into the stem and stem introduction portion, the stem can be satisfactorily raised by causing the sideways stem to be immediately raised in the plant body.

(Effects) Therefore, according to the configuration of the second aspect of the present invention, even if the lodging stem is introduced between the raising devices, the stem can be raised with high reliability.

(Structure) According to a third aspect of the present invention, in the three-row harvester according to the first or second aspect, the pair of left and right elevating devices are arranged in an outwardly widened posture which is further away from each other as they go downward. In addition, the left and right widths of the herbaceous body are set to extend downward so that the left and right side edges of the herbaceous body follow the raising path in the both raising devices.

According to the third aspect of the present invention, the pair of left and right elevating devices are arranged in an outwardly divergent posture in which the lower side is separated from each other, and the left and right side edges of the weeder body are Since the right and left width of the herbaceous plant is set to extend downward so as to follow the raising path in both raising devices, only the lower side is used so that a pair of right and left raising devices can introduce three stems and stems. The width is wide enough to introduce three stems and the normal width can be set on the upper side. The conventional structure can be applied as it is.

(Effects) Therefore, according to the structure of the third aspect of the present invention, while the conventional pair of right and left elevating devices and the transmission structure and the supporting structure therefor can be fully utilized, Since the harvesting and harvesting work of three stems can be favorably performed, there is an advantage that it can be configured at low cost.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a combine for triple cutting as an example of a harvester for triple cutting. The combine is configured by mounting a pre-cutting device 3, a threshing device 4, a boarding operation unit 5, a Glen tank, and the like on a body frame 2 supported by a pair of left and right crawler traveling devices 1, 1.

As shown in FIGS. 1 to 3, the pre-cutting device 3 has fixed weeding tools 7, 7 at the left and right ends of the front end thereof, and a pair of left and right sideways for raising grain culm. A vertical conveying device 11 for arranging the raising devices 8 and 8 of the type side by side and providing a cutting device 9 for cutting the raised grain culm at the root of the stock, and conveying the cut culm to the rear feed chain 10. It comprises. The horizontal spacing between the tips of the left and right fixed weeding tools 7, 7 is set to approximately 900 mm, and three grain stalks in the field with a 300 mm spacing are reliably introduced. Left and right width.

As shown in FIGS. 2 and 3, the raising devices 8 and 8 extend endlessly across a drive sprocket 13 and a pair of left and right idler rollers 14 and 14 housed in outer cases 12 and 12, respectively. The moving chain 15 is wound around the endless rotating chain 15 and raised at predetermined intervals. A chain 15 is simply wound around the idler rollers 14, 14 pivotally supported at the lower end of the outer case 12, and the raised pawls 16 follow the chain 15 with the idler rollers 14, 14. The posture is switched from the lying posture to the standing posture substantially orthogonal to the chain 15. Then, the raising claw 16 in the rising posture sets a raising path H that maintains the rising state to a predetermined height by a claw raising guide (not shown). Also,
A relatively large space is provided on the left and right between the raising paths H, H of the two raising devices 8, 8,
The weeding body 18 is arranged in the state located at the interval.
This weeding body 18 is formed in such a state that left and right inclined surfaces are formed such that the front edge thereof is located lower toward the front side, and the upper end of the weeding body 18 is provided with the above-mentioned raising paths H, H It is configured so as to be located even to the end portion of the raising action in. Furthermore, the tip of the raising claw 16 and the herbaceous body 18 are almost in a state of being close to each other, and the structure is also controlled by the weeding body 18 so that the stem of the raising stem does not come off from the tip side of the claw 16. Has become.

With the above configuration, a pair of left and right idler rollers 1 is provided.
The raised pawls 16 are moved from the return path side to the raised path H side in the state of being raised by the rollers 4 and 14 and, as shown in FIG. Since the moving direction is changed so as to move upward, the raising of the grain stalk is less likely to occur than that in which the raising claw 16 moves from the lateral movement path to the raising path H at an obtuse angle. Has become. Although the pair of right and left raising devices 8 and 8 are arranged so that there is a relatively large space between the raising paths H, the weeding body 18 is arranged so as to fill the space. As a result, it is possible to prevent the cereal culm from spilling out from the eliciting claw 16 and to raise the cereal culm with high certainty.

Next, an embodiment of the invention according to claim 2 will be described. The description of the same structure as in the above embodiment is omitted, and the same reference numeral is given.
As shown in FIGS. 4 to 6, the weeds arranged between the raising paths H, H in the pair of right and left raising devices 8, 8 are constituted by a vertically rotating grain stem raising device 19. I have. The grain stem raising device 19 includes an endless rotating chain (not shown) extending between a drive sprocket 21 and a free-running roller 22 provided in a pair of left and right outer cases 20, 20.
And an elevating pawl 24 is pivotally attached to the endless rotating chain at predetermined intervals so as to be able to swing up and down, and the elevating claw is raised so that the elevating pawl 24 stands on the rising path of the endless rotating chain. A claw upright guide (not shown) for guiding the upright 24 is provided. Although a transmission mechanism to the drive sprocket 21 is not shown,
Like the left and right raising devices 8, 8, power is input from a transmission case arranged at the upper rear side. The front end portions of the pair of left and right outer cases 20 and 20 are formed so as to be sharper toward the front, and are connected so that the skirt portion is wider toward the rear, and the front edge portion is lower toward the front. The raising claws 24 protrude outward from the middle of the outer cases 20 and 20 to give a raising effect to the grain stem. Furthermore, the raising claw 24 is set to move upward in a state where the tip of the raising claw 24 is close to the left and right side wall surfaces on the rear end side of the outer cases 20, 20. Here, the leading edge of the grain stem raising device 19 corresponds to the movement locus of the tip of the raising claw 24. With this configuration, even if there is a lodging grain culm in the field, even if the lodging direction crosses the traveling direction of the combine, it is satisfactorily combed up and pulled by the pair of right and left raising devices 8 and 8. The cereal stem is erected so as to be able to receive the raising action, and the cereal stem that is locked by the raising claw 24 and raised upward is less likely to come off from the raising claw 24.

Next, an embodiment of the invention according to claim 3 will be described. The description of the same structure as in the above embodiment is omitted, and the same reference numeral is given.
As shown in FIGS. 7 and 8, a pair of right and left elevating devices 2 is provided.
5 and 25 are arranged so as to spread outward in the left-right direction so that they are separated from each other toward the lower side. Therefore, at the lower end of the raising device 25, the raising claw 16 of the endless rotating chain 15 guided in the lateral movement state by the pair of left and right idler rollers 14, 14 is raised from its lateral movement path at an obtuse angle. Move to path H. Therefore, the distance between the left and right raising paths H, H becomes wider toward the lower side, so that the raising paths H, H come close to each other at the top. As shown in FIG. 7, the width of the raising path H is set to be wider toward the lower side so that the side wall surface on the rear end side is located along the upward moving path of the tip of the raising claw 16. Pathogen H,
It is fixedly arranged between H. The weed body 26 is configured to be positioned lower in the forward direction, and a central part in the left-right direction of the weed body 26 forms a ridge having a cross section that forms an obtuse angle. With this configuration, the left and right distance between the fixed weeding portions 7, 7 at both ends of the pair of right and left raising devices 25, 25 is set to a width (900 millimeters) in which three rows of grain culms can be introduced.

[Another Embodiment] The present invention can be applied to a binder, a rush harvester, and the like, in addition to the combine.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a combine of the invention according to claim 1;

FIG. 2 is a front view showing a pre-cutting device and the like according to the first embodiment of the present invention;

FIG. 3 is a plan view showing a raising device and the like of the invention according to claim 1;

FIG. 4 is an overall side view showing a combine of the invention according to claim 2;

FIG. 5 is a front view showing a pre-cutting device and the like according to the second aspect of the present invention;

FIG. 6 is a plan view showing a raising device and the like of the invention according to claim 2;

FIG. 7 is a front view showing a pre-cutting device and the like according to a third embodiment of the present invention;

FIG. 8 is a plan view showing a raising device and the like of the invention according to claim 3;

[Explanation of symbols]

 8, 25 Raising device 16 Raising claw 18, 26 Grass plant 19 Vertical-rotating stem and stem raising device

Claims (3)

[Claims] 1. A pair of left and right raising devices of a horizontal rotation type,
Along with the raising paths in which the raising claws move upwardly facing each other, and arranged at the lower end of each of the raising apparatuses, a path in which the raising claws laterally move in a protruding posture to the raising path is provided, and A weeding body having a leading edge disposed between the two raising paths and having a lower front edge so as to have a weeding action to substantially the same height as the end of the both raising paths of the both raising apparatuses. 3-row harvester. 2. The three-row harvester according to claim 1, wherein the herbaceous body is constituted by a vertical-rotation type stem and stem raising device. 3. A pair of left and right raising devices are arranged in an outwardly spreading position in which the lower left side is separated from each other, and left and right side edges of the weeding body are made to follow the raising path in the both raising devices. The three-row harvester according to claim 1 or 2, wherein the lateral width of the weeding body is set so as to extend downward.