JPH05161402A - Field trencher - Google Patents

Abstract

PURPOSE:To smoothly carry out trenching by installing a specific stabilizer in the vicinity of a member at a rear position, in the advance direction, of furrow openers. CONSTITUTION:A trench W is dug on the surface of a field (a) by the lower parts of a pair of furrow openers 8 and the lower part of a plow member 13 and the inside face of the trench is pressed by a plate face 22b of a stabilizer while sliding the plate face 22 of the stabilizer on the surface of the field. The depth of the trench is constantly maintained and excellent furrow opening is carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a field ditcher for forming drainage grooves in fields such as paddy fields.

[0002]

2. Description of the Related Art Conventionally, as a field trench digging machine of this type, a traveling machine body is provided with a machine frame, as in Japanese Utility Model Publication No. 39-35323, Japanese Utility Model Publication No. 42-16323, and Japanese Utility Model Publication No. 43-6982. It is known that a rotating plow claw is provided on the machine frame, and the field soil is plowing and crushed by the plow claw, and at the same time, it is splashed and grooved.

As another conventional structure, there is a structure in which a plow member is provided on the machine frame and the plow member is used to dig a groove as the traveling machine body travels.

In the case of the structure using the above-mentioned plowing claw, although the plowing and crushing action is good, the plowing soil due to the centrifugal force causes the plowing soil to remain and the ditch trace is not always satisfactory, and the plow member In the case of using one, since the traction force of the traveling machine becomes excessive and it is necessary to make it into a large traveling machine that is difficult for ordinary farmers to purchase, as shown in Japanese Utility Model Publication No. 59-10214, the forward direction of the plow member There is proposed a structure in which a grooving body is arranged at a position so as to oppose the digging resistance of the plow member. Further, a structure has also been proposed in which the groove cutting body is forcibly rotated.

[0005]

However, in the case of the conventional structure described above, when the field mud is scooped by the plow member and discharged laterally, the plow member may scoop the field mud excessively depending on the state of the field soil. In some cases, the traction force may increase, or the plow member may scoop the field mud too small to dig a groove of the desired depth, which may make the work unsuccessful. It has a disadvantage that it may not be possible to obtain a good digging action.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve these inconveniences, and the gist thereof is to connect a machine frame to a traveling machine body and to make a groove cut in the field scene in the machine case. A groove member is provided, and a plow member capable of scooping field soil at the rear position in the advancing direction of the groove member in the machine frame and discharging laterally is provided, and at least in the field scene in the vicinity of the plow member. The field ditcher is characterized in that a stable member capable of contacting is arranged.

[0007]

[Operation] When the traveling machine body travels through the machine frame while piercing the lower part of the groove cutting body and the lower part of the plow member into the field, the field scene is grooved by the groove cutting body, and the soil between the groove cutting is plowed. It is scraped off by the member and discharged laterally, in which case the stabilizing member is located near the plow member and comes into contact with the field scene.

[0008]

1 to 6 show an embodiment of the present invention, in which 1 is a traveling machine body which is a tractor, and a machine frame 3 is connected to a rear portion of the traveling machine body 1 by a connecting mechanism 2. Two
Is composed of left and right lower links 4, upper links 5, and lifting links 6.

Numerals 7 and 8 are a pair of groove cut bodies, which have several blades 7a and 8a cut out on the outer peripheral portion thereof, and the machine frame 3 is provided with an upper end portion of a square pipe-shaped support member 9. It is pivotally attached by a fulcrum shaft 10, and a chassis 11 is attached to the lower end portion of the support member 9,
Axle 12 is rotatably supported on the shaft 12, and grooved bodies 7 and 8 are attached to the left and right ends of the shaft 12 at predetermined intervals.

Reference numeral 13 denotes a plow member. In this case, the width of the tip of the plow member 13 is formed to be substantially the same as the width between the grooved bodies 7 and 8, and the tip of the plow member 13 is tapered. The rear portion is formed on 13a, and the rear portion is formed on a discharging portion 13b which is twisted so as to discharge the cut soil laterally.

In this case, the front end of the mounting arm 14 is pivotally attached to the lower part of the front side of the machine frame 3 by a support shaft 15, and a projecting frame part 16 is projectingly formed on the upper rear side of the machine frame 3, and the rear of the projecting frame part 16 is formed. A nut body 18 is pivotally attached to the end portion by a pin 17, a screw rod 19 is screwed to the nut body 18, and the screw rod 19 is provided so as to be movable up and down by the rotation of the handle 20, and a screw rod 19 is provided in the middle of the mounting arm 14. The lower end of is attached by a pin 21 and the plow member 13 is attached to the attachment arm 14.

Reference numeral 22 denotes a stabilizing member, in which case two supporting plates 23 are mounted on the rear surface of the mounting arm 14 so as to be opposed to each other, and a plurality of selection holes 24 are formed in the supporting plate 23 so that the supporting plates 23 are spaced from each other. The through plate 25 attached to the stabilizing member 22 is inserted into the through plate 25 to form one through hole 26 in the through plate 25, and any one of the selected hole 24 and the through hole 26 of the through plate 25 is provided with a fastening pin 27. The stabilizing member 22 is attached to the mounting arm 14 so as to be vertically adjustable and slightly swingable.

In this case, the stabilizing member 22 has an abutting plate surface 22a capable of abutting against the farm scene a and an inner side surface W of the dug groove W.
A side contact plate surface 22b capable of contacting ₁ is formed.

A weight 28 is detachably mounted near the rear portion of the machine frame 5.

Reference numeral 29 denotes a reciprocating mechanism, which has a gear case 30 attached to the machine frame 3 and an input shaft 31 of the gear case 30.
, A power take-off shaft 32 of the traveling machine body 1 is connected by a universal joint 33, a crank body 35 is attached to an output shaft 34 of the gear case 30, a connecting pin 36 is provided on the crank body 35, and is connected to a middle portion of the support member 9. Bearing the shaft 37 and connecting pin 36
The connecting rod 38 is pivotally installed between the connecting shaft 37 and the connecting shaft 37, and the groove cutting bodies 7 and 8 are reciprocated back and forth in the traveling direction by a crank action.

Since this embodiment has the above-mentioned structure, when the traveling machine body 1 penetrates the lower part of the groove cutting bodies 7 and 8 and the lower part of the plow member 13 into the field a to travel the machine frame 3, the groove cutting body is formed. 7
8 moves while rotating together and cuts two grooves R in the field a, and in this case the blade cutting resistance is reduced by the blades 7a and 8a, and the soil between the two grooves is behind it. It is scraped off by the plow member 13 and discharged to the side. As a result, it is possible to dig a groove W in the field. First, the groove is cut by the groove cutting bodies 7 and 8, and the plow member 13 cuts it. Since the excavated soil T is taken out and discharged to the side, resistance to digging work can be reduced, and an increase in the traction force of the traveling machine body 1 can be suppressed.

At this time, since the contact plate surface 22a of the stabilizing member 22 advances while contacting on the field scene a near the dug groove W, the height of the plow member 13 can be made stable. According to the state of the field soil, it is possible to prevent the plow member 13 from scooping up the field mud excessively and increasing the traction force, and it is possible to obtain an action of keeping the depth of the groove W constant, and the contact of the stabilizing member 22 is achieved. Since the plate surface 22a is located rearward of the plow member 13 in the traveling direction, the entanglement of straw dust and the like scattered in the field scene is reduced, and in this case, the weight 28 applies an appropriate load to the plow member 13. Therefore, the side contact plate surface 22b of the stabilizing member 22 can contact the inner side surface W ₁ of the excavated groove W, so that the plow member 13 and the groove cutting body 7 can be formed. 8 side shake can be suppressed, and trench digging It is possible to carry out good work.

At this time, the grooving bodies 7 and 8 are reciprocally moved back and forth in the traveling direction by the reciprocating mechanism 29.
The field grooving action by 8 is improved, and smooth and highly efficient grooving work can be performed.

In the above embodiment, the grooving bodies 7 and 8 are a pair of grooving bodies, but the grooving bodies 7 and 8 may be blade-shaped grooving blades or one of the grooving bodies. However, in the above-described embodiment, the pair of groove cutting bodies 7 and 8 and the plow member 13 are used.
Although one set is arranged, there may be two or more sets.

Further, although the traveling machine body 1 of the above embodiment is a tractor, it may be a traveling machine body portion of a passenger rice transplanter or the like, or as a structure for forcibly rotating the groove cutting bodies 7 and 8. Good.

[0021]

As described above, according to the present invention, since the stabilizing member advances while abutting on the field scene close to the dug trench, the height of the plow member can be made stable and the plow member can be kept stable. Depending on the condition, it is possible to prevent the plow member from scooping up the field mud excessively and increasing the traction force, and to obtain the effect of keeping the depth of the groove constant, and the stabilizing member is located behind the plow member in the traveling direction. Therefore, the entanglement of straw chips and the like scattered in the field scene is reduced, and thus the good grooving work can be performed, and the smooth and highly efficient digging work can be performed.

As described above, the intended purpose can be achieved sufficiently.

[Brief description of drawings]

FIG. 1 is an overall side view of an embodiment of the present invention.

FIG. 2 is a partial side view of the embodiment of the present invention.

FIG. 3 is a partial plan view of the embodiment of the present invention.

FIG. 4 is a partial vertical sectional view of the embodiment of the present invention.

FIG. 5 is a partial rear view of the embodiment of the present invention.

FIG. 6 is a partial perspective view of an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling machine 3 Connection mechanism 7 Grooving body 8 Grooving body 13 Plow member 22 Stabilizing member a Field scene

Claims (1)

[Claims] 1. A machine frame is connected to a traveling machine body, a groove cutter capable of grooving is provided in a field scene in the machine frame, and the field soil is scooped at a position behind the groove cutter in a traveling direction of the machine frame. A field trench digging machine, characterized in that a plow member which can be discharged laterally is provided, and at least a stabilizing member which can come into contact with the field scene is arranged in the vicinity of the plow member.