JPH07298754A - Separating tool structure for reaping harvester - Google Patents

Abstract

PURPOSE:To avoid dangerousness caused by a stationary separating tool ing traveling on a road and to make a means therefor readily handleable in a reaping harvester equipped with the stationary separating tool at the lower part of the front end of a machine body. CONSTITUTION:A stationary separating tool 7 is dividedly formed into a front separating tool part 7a having a sharp front end and a rear separating tool part 7b having a round front end. The front separating tool part 7a is installed changeably in its longitudinal position by handling into an operation state in which the front separating tool part is projected forward from the rear separating tool part 7b and a traveling state on a road in which the front separating tool part 7a is retreated behind the rear separating tool part 7b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weeding tool structure for a harvester such as a combine harvester in which a fixed weeding tool is provided at a lower portion of a front end of a machine body.

[0002]

2. Description of the Related Art Conventionally, a fixed weeding tool having a front end that is sharpened so as to improve the weeding function is fixed to the machine body in a fixed posture, and the danger of running on the road by the fixed weeding tool having a sharp front end In order to avoid the property, the front end of the fixed weeding tool was configured to be covered with a protective cover having a rounded front end.

[0003]

However, the attachment and detachment of the protective cover and the management of the removed protective cover are troublesome, and there is room for improvement in terms of handling. An object of the present invention is to eliminate the need for a protective cover while avoiding the danger of traveling on the road due to a fixed weeding tool, and to facilitate handling.

[0004]

In order to achieve the above object, the present invention has the following constitution. That is, the characteristic configuration of the first invention is, in a reaper harvesting machine in which a fixed weeding tool is provided in the lower part of the front end of the machine body, in a front weeding tool part having a sharp front end and a rear side weeding tool part having a rounded front end. Working form in which the fixed weeding tool is divided and the front weeding tool part projects forward from the rear weeding tool part, and the front running weeder part retreats rearward from the rear weeding tool part It is because at least one of the front weeding tool portion and the rear weeding tool portion is attached so as to be capable of changing the front-rear position in a freely switchable state.

A feature of the second aspect of the present invention is that in a reaper harvesting machine having a fixed weeding tool provided at a lower portion of a front end of a machine body, the fixed weeding tool is formed in a shape in which a front end is sharpened and a rear end is rounded. The rotation supporting part is installed so that it can be turned upside down, and the fixing means is provided to fix the fixed weeding tool in a working form in which the sharp front end is located in the front and in a road running form in which the rounded rear end is located in the front. It is in.

According to a third aspect of the present invention, in a reaper harvesting machine having a fixed weeding tool provided at a lower portion of a front end of a machine body, the fixed weeding tool is formed in a shape in which a front end is sharp and a rear end is rounded. There is provided a fixing means which can be flipped over and replaced for fixing the grass tool in a working form in which a sharp front end is located in the front and in a road running form in which a rounded rear end is located in the front.

[0007]

According to the construction of the first aspect of the invention, the front and rear weeding tool parts and the rear weeding tool part are moved forward and backward so that the front weeding tool part projects forward from the rear weeding tool part. Alternatively, it is possible to select a road running mode in which the front side weeder part retreats rearward from the rear side weeder part, so that the front side weeder part with a sharp front end is located at the front end of the machine during harvesting work. Therefore, the rear weeding part with a rounded front end is located at the front end of the machine when traveling on the road, and the danger of the fixed weeding device can be avoided.
In particular, since the work form and the road running form can be selected by changing the front and rear positions of the front side weeding tool part and the rear side weeding tool part, the protective cover for the fixed weeding tool required in the above-mentioned conventional technology is unnecessary, This eliminates the hassle of attaching and detaching the protective cover and managing the removed protective cover, which is convenient in terms of handling.

According to the structure of the second aspect of the invention, the fixed weeding tool having a shape in which the front end is sharp and the rear end is rounded is turned back and forth by the rotation support portion and fixed by the fixing means, and the sharp front end is moved forward. It is possible to select the working mode that is located or the road running mode that the rounded rear end is located forward, so that during harvesting work, the fixed weeding tool with a sharp front end should exert a good weeding function. When running on the road, a fixed weeding tool with a rounded front end can avoid the danger. In particular, the work form and the road running form can be selected by reversing the fixed weeding tool by rotating the fixed weeding tool. This eliminates the hassle caused by the management of the protective cover, and is convenient in terms of handling.

According to the third aspect of the invention, the fixed weeding tool having the front end sharpened and the rear end rounded is reversed by the fixing means and the sharp front end is located forward, or Since it is possible to select a road running form where the rounded rear end is located in the front, a fixed weeding tool with a sharp front end can exhibit good weeding function during harvesting work, and the front end when traveling on the road. The rounded fixed weeding tool avoids the danger. In particular, since the work mode and the road running mode can be selected by reversing and replacing the fixed weeding tool, the protective cover for the fixed weeding tool, which was required in the above-mentioned conventional technology, is not necessary, and the protective cover is attached / detached and removed. It is possible to eliminate the hassle caused by the management of, and it is convenient in terms of handling.

[0010]

As a result, it is possible to provide a reaper harvesting machine which is excellent in handling and which does not require a protective cover for the fixed weeding tool while avoiding the danger of the fixed weeding tool running on the road.

[0011]

【Example】

(Embodiment 1) As shown in FIG. 1, a mowing pretreatment device 1, a threshing device 2 for threshing and selecting a grain culm from the mowing pretreatment device 1, and a grain tank for collecting the first product from the threshing device 2. 3, the unloader 4 for discharging the grains from the Glen tank 3, the boarding operation unit 5 and the like are equipped on the vehicle body traveling by the crawler type traveling device 6, and the fixed weeding tool 7 is provided at the lower front end of the pre-mowing treatment device 1. A planted grain culm raising device 8 is provided behind the fixed weeding tool 7 to form a self-removing combine.

As shown in FIGS. 2 to 4, the fixed weeding tool 7 is divided into a rod-shaped front weeding tool portion 7a having a sharp front end and a rear weeding tool portion 7b having a rounded front end. Insert the support pipe 9 of the rear side weeding tool portion 7b into the mowing frame 10 and fix it detachably with the bolts 11,
a is placed below the rear side weeding tool portion 7b, inserted into the support pipe 9 and fixed by a bolt 12 so that the front and rear position can be freely changed. It is configured to be switchable between a working mode in which 7a projects forward from the rear weeding tool portion 7b and a road running mode in which the front weeding tool portion 7a retreats rearward from the rear weeding tool portion 7b. The rounded front end of the rear side weeding tool portion 7b satisfies the legally required "riskless roundness of the tip", that is, a curved surface with a radius of curvature of 20 mm or more. In other words, the front weeding tool 7a having a sharp front end is located at the front end of the machine during harvesting work so that the fixed weeding tool 7 exerts a good weeding function, and when traveling on the road, the rear weeding tool has a rounded front end. The portion 7b is located at the front end of the machine body so as to avoid the danger of the fixed weeding tool 7. Figure 1
4 and the discharge port 4a of the unloader 4, as shown in FIG.
The cleaning port 4b is formed on the side end wall, and the lid 1 made of transparent resin is formed.
7 is elastically fitted to the end wall, and the residue remover 18 inserted from the cleaning port 4b can remove the residue inside the unloader 4.

(Embodiment 2) As shown in FIGS. 5 to 7, in a combine similar to that of Embodiment 1, a front side weeding tool portion 7c made of sheet metal or resin having a sharp front end and a rear side having a rounded front end. The fixed weeding tool 7 is divided into the weeding tool portion 7d,
The support pipe 9 of the rear side weeding tool portion 7d is cut into a mowing frame 10.
The front weeding tool part 7c is arranged above the rear weeding tool part 7d so that the front and rear position can be freely changed by a pair of left and right bolts 13, A working mode in which the front side weaving tool portion 7c projects forward from the rear side weeding tool portion 7d by changing the front and rear fixing positions of the weeding tool portion 7c, and the front weeding tool portion 7c is rearward from the rear weeding tool portion 7d. It is configured so that it can be switched over to a road running form that retires. The rounded front end of the rear side weeding tool portion 7d is the above-mentioned legally required "safe roundness of the tip". In other words, during harvesting work, the front weeding tool portion 7c having a sharp front end is located at the front end of the machine body so that the fixed weeding tool 7 exhibits a good weeding function, and when traveling on the road, the front weeding tool has a rounded front weeding tool. The portion 7d is located at the front end of the machine body so as to avoid the danger of the fixed weeding tool 7.

(Third Embodiment) As shown in FIGS. 8 to 10, in a combine similar to that of the first embodiment, the fixed weeding tool 7 is formed so that its front end is sharp and its rear end is rounded. 10 to the support pipe 9 which is detachably fixed to the support pipe 9 with the fixed weeding tool 7 at the front-rear intermediate position, that is, the bolt 14a fixed to the fixed weeding tool 7 and the nut 14b fixed to the support pipe 9. Fixing means 15 for attaching the fixed weeding tool 7 in a working form in which a sharp front end is located in the front and in a road running form in which a rounded rear end is located in the front by a support portion screwed to That is, a lock nut screwed to the bolt 14a is provided. The rounded rear end of the fixed weeding tool 7 is the above-mentioned legally required "safe roundness of the tip". That is, during harvesting work, the fixed weeding tool 7 having a sharp front end exerts a good weeding function, and when traveling on the road, the fixed weeding tool 7 having a rounded front end avoids danger.

(Embodiment 4) As shown in FIGS. 11 to 13, in a combine similar to that of Embodiment 1, the fixed weeding tool 7 is formed in such a shape that the front end is sharp and the rear end is rounded, and the cutting frame is formed. For fixing the fixed weeding tool 7 to the support pipe 9 which is detachably fixed to the bolt 10 by the working mode in which the sharp front end is located in the front and the running form on the road in which the rounded rear end is located in the front. Fixing means 16 which is reversible and replaceable, that is, a cylindrical member 16a fixed to the fixed weeding tool 7
Is attached to the pin 16b fixed to the support pipe 7 so that it can be flipped over and operably fitted to the pin 16b. A fixing means is provided. The rounded rear end of the fixed weeding tool 7 is the above-mentioned legally required "safe roundness of the tip". That is, during harvesting work, the fixed weeding tool 7 having a sharp front end exerts a good weeding function, and when traveling on the road, the fixed weeding tool 7 having a rounded front end avoids danger.

[Other Embodiments] The present invention can be applied to various types of combine harvesters, binders, and other harvesters. In the first aspect of the present invention, front side weeding tool parts 7a, 7c having a sharp front end and rear side weeding tool part 7b having a rounded front end,
The shape, material, mounting structure, etc. of 7d can be changed appropriately. For example, the front side weeding tool parts 7a, 7c are fixed, and the rear side weeding tool parts 7b, 7d are configured to be able to move forward from the front side weeding tool parts 7a, 7c, or the front side weeding tool parts 7a, 7c. It may be configured that the front side weeding tool parts 7a, 7c are retracted rearward from the rear side weeding tool parts 7b, 7d by the rearward movement of 7c and the forward movement of the rear side weeding tool portions 7b, 7d. , A working mode in which the front side weeding tool parts 7a, 7c project forward from the rear side weeding tool parts 7b, 7d, and the front side weeding tool parts 7a, 7c retreat rearwardly from the rear side weeding tool parts 7b, 7d In the state that can be switched to the road running form that
Front side weeding tool parts 7a, 7c and rear side weeding tool parts 7b, 7d
It suffices if at least one of the two is attached so as to be able to change the front-back position. In the second aspect of the present invention, the shape and material of the front end and the rear end of the fixed weeding tool 7 can be changed appropriately, and the rotation support part 14 for attaching the fixed weeding tool 7 to the front-rear intermediate position so as to be reversible back and forth, and The specific structure of the fixing means 15 for fixing the fixed weeding tool 7 in a working mode in which a sharp front end is located in the front and in a road running form in which a rounded rear end is located in the front can be appropriately changed by a known mechanical technique. is there. In the third aspect of the present invention, the shape and material of the front end and the rear end of the fixed weeding tool 7 can be appropriately changed, and the working form in which the pointed front end of the fixed weeding tool 7 is located in the front and the rounded rear The specific configuration of the fixing means 16 that can be flipped and exchanged for fixing in a road running form with the end positioned forward can be appropriately changed by known mechanical techniques. In order to remove the residue inside the unloader 4, as shown in FIG. 16 and FIG.
The cleaning port 4b is formed on the end wall on the side of the discharge port 4a, and a net 19 made of a material whose mesh size can be expanded and restored is stretched over the cleaning port 4b. It may be configured to be plugged.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 Side view of combine

FIG. 2 is a side view showing a working form of the weeding part of the first embodiment.

FIG. 3 is a plan view showing a work form of the weeding part of the first embodiment.

FIG. 4 is a plan view showing a road running form of the weeding part of the first embodiment.

FIG. 5 is a side view showing a working form of the weeding part of the second embodiment.

FIG. 6 is a plan view showing a working form of the weeding part of the second embodiment.

FIG. 7 is a plan view showing a road running form of the weeding part of the second embodiment.

FIG. 8 is a side view showing a working form of the weeding part of the third embodiment.

FIG. 9 is a plan view showing a work form of the weeding part of the third embodiment.

FIG. 10 is a side view showing a road running form of the weeding part of the third embodiment.

FIG. 11 is a side view showing the working mode of the weeding part of the fourth embodiment.

FIG. 12 is a plan view showing a work form of a weeding part of Example 4.

FIG. 13 is a side view showing a road running form of the weeding part of the fourth embodiment.

FIG. 14 is an explanatory diagram of the tip of the unloader according to the first embodiment.

FIG. 15 is an explanatory view of the tip of another embodiment of the unloader.

[Explanation of symbols]

 7 Fixed weeding tools 7a, 7c Front side weeding tool parts 7b, 7d Rear side weeding tool part 14 Rotation support part 15 Fixing means 16 Fixing means

Claims (3)

[Claims] 1. A cutting and harvesting machine provided with a fixed weeding tool (7) at a lower part of a front end of a machine body, wherein a front weeding tool part (7a, 7c) having a sharp front end and a rear weeding tool part having a rounded front end. The fixed weeding tool (7) is formed separately from (7b, 7d), and the front weeding tool portion (7a,
7c) is a work mode in which the rear side weeding tool parts (7b, 7d) project forward, and the front side weeding tool parts (7a, 7).
c) the front side weeding tool parts (7a, 7c) and the rear side weeding tool parts in a state in which the rear side weeding tool parts (7b, 7d) can be switched to a road running form in which they are retreated rearward. (7
b) 7d) at least one of which is attached so as to be able to change the front-back position freely. 2. A cutting and harvesting machine provided with a fixed weeding tool (7) at the lower part of the front end of the machine body, wherein the fixed weeding tool (7) is formed into a shape with a sharp front end and a rounded rear end. Position rotation support (1
A fixing means (1) for reversibly attaching the fixed weeding tool (7) in a working form in which a sharp front end is located in the front and in a road running form in which a rounded rear end is located in the front.
5) The weeding tool structure of the reaper harvester. 3. A cutting and harvesting machine provided with a fixed weeding tool (7) at the lower part of the front end of the machine body, wherein the fixed weeding tool (7) is formed in a shape with a sharp front end and a rounded rear end, A fixing means (16) for reversing and changing operation is provided for fixing the weeding tool (7) in a working mode in which a sharp front end is located in front and in a road running form in which a rounded rear end is located in front. The weeding tool structure of the harvester.