JPH119001A - Protective apparatus for rotary tilling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the contact of protruding ends of the rotary of a rotary tilling device with crops, a walker, etc., to damage them during the proceeding of a machine body in a case where the width of the total body of the rotary tilling device is wider than that of the machine body of a farming tractor. SOLUTION: This protective apparatus for a rotary filling device has a structure in which one end of a guiding device 3 is attached at a lateral frontal end of the rotary filling device 2, and the other end of the guiding device 3 protrudes in the forward direction and at the same time the protruding end is bent inside to construct a guiding face 4, in a case where lateral ends of the rotary tilling device 2 mounted at the rear side of the machine body 1 of a moving vehicle protrude outside of the width of the machine body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective device for a rotary tilling device, and more particularly, to a rotary tilling device for digging a surface of a field with a rotary digging claw for excavating and crushing soil. Aims to prevent crops from getting caught and prevent pedestrians from getting caught when traveling.

[0002]

2. Description of the Related Art As shown in Japanese Utility Model Laid-Open Publication No. 54-14921, a conventionally known crop entanglement prevention apparatus has a working machine attached to the rear of a moving vehicle. The protective frame is provided with a spiral rotary blade at the time of refilling a groove, in which a spiral rotary blade is mounted on the left and right sides of a working machine, as shown in Japanese Utility Model Publication No. 56-89307. There is an opening and closing protruding on both sides of the upper side.

[0003]

Among such conventional constructions, the construction disclosed in Japanese Utility Model Laid-Open Publication No. 54-14921 is such that the side plate is arranged to be approximately half the width of the working machine with respect to the narrow working machine. In addition, the side plate is protruded greatly, and is long in the front-rear direction from the side of the machine body to the side of the work machine, so that the side plate becomes heavy and large. Then, as this side plate becomes closer to the front wheel whose angle is changed at the time of steering, it becomes necessary to move the large side plate first to a position where it does not obstruct the front wheel every time an operation such as correction of the traveling direction of the body or turning is performed. In such a configuration, the number of separate operations during operation is increased, or a heavy member is moved, which is not suitable for repetitive work in a small field.
This is a configuration that imposes a burden on the driver.

[0004] Further, in the device disclosed in Japanese Utility Model Laid-Open Publication No. 56-89307, the protective frame is rotatable while largely protruding to both sides, so that depending on the angle of rotation adjustment of the protective frame, the rotating tool can be safely used. There is a danger that the protective frame will not be able to be covered or that the protective frame will be in the way, making it easier to come into contact with other objects and becoming a dangerous material.

[0005]

SUMMARY OF THE INVENTION The present invention is to solve such a problem of the conventional device, and has taken the following technical means. That is, the body 1 of the moving vehicle
When the width end portion of the rotary tilling tool 2 attached to the rear projects outside the width of the body 1, one end of a guide tool 3 is attached to a side front end of the rotary cultivator tool 2, and the guide tool 3 Of the rotary tillage protection device, characterized in that the other end side protrudes forward and the protruding end is bent inward to form the guide surface 4.

[0006]

1 shows a rotary tilling device mounted on a rear portion of a farm tractor 5 so as to be able to move up and down, and will be described in detail below. The front and rear wheels 6, around the body 1 of the agricultural tractor 5
7 are provided. Aircraft 1 between the front left and right wheels 6,6
Above, an engine (not shown) is mounted.
The hood 8 is covered around the engine. A handle 9 is provided behind the bonnet 8, and is steered by a driver sitting on a seat 10 disposed above the right and left rear wheels 7,7. Although not shown, the driving force of the engine is transmitted to the rear wheels 7 and the front wheels 6 via a main clutch and transmission gears of various parts, and the agricultural tractor 5 moves forward or backward.

[0007] One end of a three-point link device comprising a top link 11 and left and right lower links 12, 12 is attached to the rear part of the body 1, and the other end of the three-point link is the tip of a mast 13 of the rotary tiller 2. Part and left and right support frames 14,
Fourteen parts are axially mounted by mounting pins 15 and 15. 1
6 is a lift arm, which is a hydraulic cylinder case 17
It is attached to the rear part so as to be vertically rotatable about a shaft 18, and is operated by adjusting the vertical rotation amount by an actuator (not shown). The protruding tip end of the lift actuator 16 and the middle part in the front-rear direction of the lower link 12 are connected by a lift rod 19, and the rotary tilling implement 2 is moved up and down by a vertical rotation operation of the lift arm 16.

The rotary tiller 2 shown in the plan view of FIG.
The drive force of the engine, which is a side-drive type rotary and is input to a transmission case 20 provided at the upper center in the left-right direction, is transmitted to a side transmission case 21 at one end via a bevel gear, a transmission shaft 22, and the like (not shown). I have. Transmission case 2
The left outer portion of the transmission case 21 and the upper inside of the side transmission case 21 are connected by a left connect pipe 23, and the right outer portion of the transmission case 21 and the upper inside of the side plate 25 are connected by a right connect pipe 24. . By the left and right connect pipes 23 and 24, the upper part of the rotary tilling tool 2 is rigidly connected on the left and right sides, and the left and right ends of the lower tilling pipe 26 are freely rotatable so that the above-mentioned side transmission case 21 and side plate 25 are rotatable. To form a strength member member at the top, bottom, left and right of the rotary. The support frames 14 described above are integrally attached to the inner sides of the left and right connect pipes 23 and 24, as shown in FIG. An upper sprocket 27 is attached to the end of the transmission shaft 22 which is the upper part of the side transmission case 21, and the side transmission case 2
1. A lower sprocket 28 is attached to an end of the lower tilling pipe 26, and a chain 29 is wound between the upper and lower sprockets 27,28.

[0009] The side plate 25 is an iron plate in a plan view.
It is folded into a letter shape, and it is a lateral strength member that is long in the vertical direction. As shown in FIG. 1, a plurality of tilling claws 30, 30. . . Are mounted at a predetermined pitch over the entire width, and the mud surface is excavated and crushed by the driving rotation of the tilling pipe 26. The upper part of the rotation locus of the tilling claws 30, 30 is covered with a main cover 31, and a rear cover 32 is attached to the rear end of the main cover 31 so as to be able to swing up and down around a fulcrum 33. Numeral 34 denotes a push-pull rod, whose lower end is axially mounted on the rear cover 32, and whose middle portion in the vertical direction is slidably attached to a stay 35 projecting from the main cover 31 side.
The vertical position of the rear cover 32 is changed by adjusting the position.

The main cover 31 is formed by bending a thin iron plate into an arc shape, and a flange plate 37 along an arc is integrally welded to both left and right edges of the main cover 31. This flange plate 37 improves the strength at the end of the main cover 31,
Further, a side cover plate 44 for preventing muddy soil from scattering to the side when the rotary device is tilled constitutes a mounting portion for mounting. In the present invention, the base end mounting plate 39 of the guide 3 is detachably fixed to the opening 38 provided at the front end of the left and right flange plates 37, 37 via bolts 40.

As shown in FIG. 2, the guides 3 and 3 have guide surfaces 4 and 4 which are bent so as to become narrower inward toward the front as shown in FIG. The guide surface 4 is lifted so as to be directed substantially horizontally in an upward direction with respect to the projecting direction of the guide 3. Next, the operation after the attachment of the guide 3 will be described.

A guide 3 attached to the left and right front ends of the rotary tilling tool 2 which is wider than the rear wheels 7, 7 which is the body width of the agricultural tractor 5 projects toward the front side in the traveling direction "a" of the body. The distance between the ends is reduced. With this configuration, the foliage, pedestrians, and the like of the crop that are to be brought into contact with the main cover 31 projecting sideward from the rear wheel 7 are pushed out of the width of the rotary till 2 by the guide surface 4 of the guide 3. Would. On the other hand, in a heavy building or the like, the rotary tiller 2 is pushed to the side and escapes. This prevents other objects from being caught or entangled in the rotary tilling implement 2 during traveling of the airframe, so that serious damage and injury to crops, pedestrians, buildings, and the rotary cultivating implement are less likely to occur.

FIG. 4 shows an embodiment in which a member of another important part is attached, which is intended to prevent damage to a random protrusion such as a lower branch of a tree in an orchard. Will be explained. First, the guide 3 attached to the right side of the rotary tilling 2 is removed, and the right side plate 25, the right frame pipe 24, and the main cover 31, which are strength members, are provided at the right front corner of the rotary tilling 2. , With the corner cover 41. The corner cover 41 includes an arc-shaped ceiling cover 42 in a side view and a standing wall cover 43 that covers the outside of the side plate 25. In the illustrated example, the upright wall cover 43 extends downward to the side of the tilling pipe 26. However, if the front edge of the side plate 25 is gentle, the downward extension of the upright wall cover 43 is shortened to about the lower edge of the side cover 44. May be.

The lower front edge of the ceiling cover 42 is the main cover 3.
The lower branch of the tree, which is slightly lower than the front edge of the first and extends obliquely upward, is pushed up and guided in the direction of the right frame pipe 24 by moving the body 1 in the “a” direction.
As a result, the tip side of the lower branch smoothly moves rearward.
The rear edge of the ceiling cover 42 is not extended to the rear than the rear end of the right side plate 25 and the right frame pipe 24, which are strength members, and the lower branch lifted by the fuselage advance is returned to the original position. return.

In the illustrated example, the corner cover 41 is described only on the right side. However, while the corner cover 41 is provided only on one side and digs and plows around one side of the tree, if the covers are attached to the left and right corners, The agricultural tractor 5 can be put between the rows, and the tilling work between the left and right trees can be easily performed.

[0016]

The present invention is directed to a rotary tilling tool 2 attached to the rear of a body 1 of a moving vehicle, wherein a width end portion of the rotary cultivating tool 2 projects outward beyond the width of the body 1. One end of the guide 3 is attached to the front end.
The other end side of the guide tool 3 protrudes forward and the protruding end is bent inward to form the guide surface 4, so that the largest protruding part on one end side of the guide tool 3 is near the maximum width of the rotary tilling tool 3. Furthermore, since the guide surface 4 bent inward can be gently formed on the other end projecting side of the guide member 3 projecting forward toward the side of the body located at a position narrower than this width, the stalks of the crops at the time of work can be formed. The pedestrians and buildings are guided by guides 4
The rotary tilling tool 3 can be easily pushed to a position where it is not affected by the excavation blade, and is safe.

[Brief description of the drawings]

FIG. 1 is an overall side view of a rotary tiller during excavation work.

FIG. 2 is a plan view of FIG.

FIG. 3 is an enlarged front perspective view of a main part, showing attachment of a guide to the main part.

FIG. 4 is an enlarged front perspective view of a main part when a corner cover of another main part is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Airframe 2 Rotary tillage tool 3 Guide tool 4 Guide surface

Continuing on the front page (72) Inventor Kiyoshi Sakurahara 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Inside

Claims (1)

[Claims] 1. A rotary tilling tool 2 attached to the rear of a body 1 of a moving vehicle, wherein a width end of the rotary cultivating tool 2 projects outward beyond the width of the body 1, and a guide tool 3 is provided at a lateral front end of the rotary cultivating tool 2. And a guide surface 4 formed by projecting the other end of the guide 3 forward, and bending the protruding end inward to form a guide surface 4.