JPH0870609A - Walking-type mobile farming machine - Google Patents

Abstract

PURPOSE: To provide the subject farming machine excellent in machine body turnability without affecting the angle control for a rotary cover, so designed that the inner surface of the rotary cover is furnished, so as to be easy to attach, with a pair of elastically deformable left and right mud soil stickproofing plates monolithically covering the pivotally connecting parts for the respective covers. CONSTITUTION: This farming machine is so designed that a rotary cover 8 on the upper part of a rotary device is provided so as to regulate its angle around the axial center in the longitudinal direction of a machine body, tilled soil sprung up by the rotary device is guided in the lateral direction of the machine body through the rotary cover 8, and the inner surface of the rotary cover 8 is furnished with a pair of elastically deformable left and right mud soil stickproofing plates 20, 20 monolithically covering the pivotally connecting parts for the respective covers 8A1 , 8A2 , 8B. It is preferable that these plates 20 be held on holding fitments 21 at the end of the rotary cover 8, while molded, in advance, so as to get into a habit of upward projection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a rotary cover for covering the upper part of a rotary device, the angle of which can be adjusted around an axis in the longitudinal direction of the machine body, so that the plowing soil raised by the rotary device can be covered by the rotary cover. The present invention relates to a walk-behind mobile agricultural machine used for managing tillage, which is guided to the lateral direction of the machine body and supplied to the root of a ridge crop.

[0002]

2. Description of the Related Art A conventional tillage management machine as a walk-type mobile farm machine is disclosed in Japanese Utility Model Laid-Open No. 4-48904.
A rotary cover that covers the upper portion of the rotary device is configured so that the angle can be adjusted around the axial center in the machine longitudinal direction.

[0003]

Since the plowing soil repelled by the rotary device is applied to the inner surface of the rotary cover and guided laterally of the body, mud is likely to adhere to the inner surface of the cover. When the piled up, the cover becomes heavy, and there is a disadvantage that it is difficult to turn the body by lifting the rotary device at the ridge.

A first object of the present invention is to suppress the adhesion of mud to the rotary cover and facilitate the turning of the machine body on the ridge.

A second object of the present invention is to allow a member therefor to be easily attached to the rotary cover.

A third object of the present invention is to prevent a member therefor from obstructing the angular adjustment of the rotary cover.

[0007]

The characteristic structure of the first invention is that the rotary cover for covering the upper part of the rotary device is constructed so that its angle can be adjusted around the axis in the longitudinal direction of the machine body, and the rotary cover is flipped up by the rotary device. In a walking type mobile agricultural machine that guides cultivated soil laterally with the rotary cover, on the inner surface of the rotary cover, a pair of left and right elastically displaceable mud adhesion preventing plates that integrally cover the pivotal connection portion of each cover are provided. It is provided.

In the characteristic construction of the second aspect of the present invention, the mud adhesion preventing plate is locked to a locking tool provided at the end of the rotary cover.

In the characteristic construction of the third aspect of the present invention, the mud adhesion preventing plate is formed in advance so as to be bent upward so as to be curved.

[0010]

According to the characteristic construction of the first aspect of the present invention, the tilled soil repelled by the rotary device is guided in the lateral direction of the machine body by the mud adhesion preventing plate on the inner surface of the rotary cover, and is discharged. The cultivated soil adhered to the inner surface of the adhesion prevention plate is shaken off by the elastically displaceable mud adhesion prevention plate that vibrates slightly due to the vibration of the machine body, and mud adhesion is suppressed.

Further, since the mud adhesion preventing plate integrally covers the pivotal connecting portion of each cover, the plowing soil is smoothly guided and discharged in the lateral direction of the body, and the pivotal connecting portion of the cover is discharged. Mud will not scatter from the gap.

According to the characteristic construction of the second aspect of the present invention, since the mud adhesion preventing plate is locked and fixed to the rotary cover, the cover is compared with the case where a fixed connecting tool using bolts or screws is used. It is easy to attach to a fixed connection tool such as bolts and screws, and it is possible to avoid that mud adheres to the fixed connection tool such as bolts and screws as in the case of using a fixed connection tool that uses bolts and screws.

According to the characteristic construction of the third aspect of the present invention, the mud adhesion preventing plate having the curved habit of convexly bending upward can suppress the sagging of the intermediate portion of the preventing plate and adjust the angle of the rotary cover. Is less likely to be disturbed.

[0014]

According to the characteristic configuration of the first aspect of the present invention, it is possible to suppress the adhesion of mud to the rotary cover, and it becomes easier to turn the machine body by lifting the rotary device at the edge of the ridge.

Further, since the mud adhesion preventing plate integrally covers the pivotal connecting portion of each cover, it is possible to prevent the mud from scattering through the gap between the pivotal connecting portions of each cover, and to guide the good tilling soil. Exert an effect.

According to the characteristic construction of the second aspect of the present invention, it is easy to attach the mud adhesion preventing plate to the rotary cover, and the mud adhesion preventing plate is fixed to the rotary cover via the fixing connection tool such as bolts or screws. Compared with the case, it is possible to avoid such a situation that mud adheres to a fixed connecting tool such as a bolt or a screw to be deposited and solidified to make it difficult to remove the mud adhesion preventing plate.

According to the characterizing feature of the third aspect of the present invention, the mud adhesion preventing plate having a curving habit of upwardly bending upward can suppress the sagging of the intermediate portion of the preventing plate, and the rotary cover can be moved upward. When bent, the angle adjustment of the rotary cover is less likely to be hindered.

[0018]

[Example] FIG. 1 shows the whole of a walk-type cultivator as a walk-type mobile agricultural machine that is used for middle tillage management, in which cultivated soil is fed to the root of a crop on a ridge by traveling between ridges between crops. This walking type cultivator has a rotary cultivator B connected to the rear part of a traveling machine body A equipped with an engine 1, a traveling mission case 2, a pair of left and right wheels 3, 3, and a steering handle 4 for managing the middle tillage. The walking cultivator used is constructed.

The rotary tiller B comprises a rotary frame 5, a rotary case 6, a rotary device 7, a rotary cover 8 and a resistance rod 9, and the rotary case is passed from the traveling machine body A through a chain transmission device in the auxiliary chain case 10. The power is transmitted to the chain transmission device of No. 6.

The rotary cultivator B is configured so that the cultivated soil is flipped up in the upper cut type to raise the rotary cover 8.
It is designed so that it will be discharged laterally outward from the aircraft.

As shown in FIGS. 3 and 4, the rotary cover 8 is composed of a pair of left and right upper covers 8A and a pair of left and right side covers 8B, and the pair of left and right upper covers 8A, respectively. It is divided into two parts in the machine width direction,
The split covers 8A ₁ and 8A ₂ are pivotally connected to each other in a reverse V-shape by a hinge 11 that is swingable around the longitudinal axis of the machine body. The side cover 8B is pivotally connected to the outer end portion of the upper cover 8A so as to be swingable upward via a hinge 11 which is swingable around an axial center in the machine longitudinal direction. And the upper cover 8A
The split cover 8A ₁ on the inner side of the body of the hinge 1 is swingable about the rotary frame 5 about the longitudinal axis of the body.
It is pivotally connected to the upper part via 1 so as to be swingable.

The split cover 8A ₁ on the inner side of the upper cover 8A in the body is fixed to the rotary frame 5 by the fixing mechanism 1
2 is fixed so that the angle can be adjusted, and the split cover 8A ₂ on the outer side of the fuselage is fixed to the split cover 8A ₁ on the inner side of the fuselage through a fixing mechanism 13 so that the angle can be adjusted. and, then, the side cover 8B is an angle adjustably fixed through the fixing mechanism 14 on the divided cover 8A ₂ aircraft outer side.

The fixing mechanism 12 for the upper split cover 8A ₁ on the inner side of the body is a link with a long hole pivotally connected to the upper surface of the upper split cover 8A _{1 with} respect to the post 5A erected on the rotary frame 5. It is configured such that it can be fixed at an arbitrary angle by fixedly connecting 15 via a butterfly bolt 16. Further, the fixing mechanism 13 of the upper split cover 8A ₂ and the fixing mechanism 14 of the side cover 8B on the outer side of the machine are
The bracket 17 fixed to the upper cover 8A is fixedly connected to the bracket 18 fixed to the outer surface of the side cover 8B via the butterfly bolt 19 so that the link 18 can be fixed at any angle. ing.

A pair of left and right mud adhesion preventing plates 20, 20 are provided on the inner surface of the rotary cover 8 with a gap to allow a slight vibration accompanying the vibration of the machine body.

The mud adhesion preventing plate 20 is made of a water-repellent soft resin material to which mud is unlikely to adhere, and has a U-shaped locking metal fitting 21 provided at the end of the rotary cover 8.
Is locked through.

Further, the mud adhesion preventing plate 20 is formed with a curving habit in which the middle portion in the left-right direction is convexly bent upward in advance, and does not hinder the sagging of the middle portion and the angle adjustment of the upper cover 8. It is enthusiastic.

In this walking type cultivator, as shown in FIGS. 5 and 6, the main clutch of the traveling machine body is provided with a hand lever 22 operable by hand, a finger lever 23 operable by fingers, and A gate-type lever 24 capable of disengaging the main clutch is provided when the handle cannot be fully pressed by the driving reaction force of the wheels when the vehicle is moving backward and the handle is lifted upward and the hand lever 22 or the finger lever 23 cannot be operated. It is provided.

That is, when the hand lever 22 is operated around the fulcrum P ₁ forward, the main clutch is engaged, and when it is operated rearward, the main clutch can be disengaged.
And the finger lever 23 is
A free end of a fulcrum link 26 pivotally supported by a fulcrum bracket 25 about a fulcrum P ₂ is pivotally supported about a fulcrum P _{3 so} that the finger lever 23 has a front extension 23 a. Is pivotally connected to one end of an operation link 27 that swings integrally with the hand lever 22. And FIG.
As shown in (a), when the hand lever 22 is operated forward, in the "clutch engaged" state, the finger lever 23
Is below the handle grip, and when the finger lever 23 is pulled up by a finger other than the thumb of the left hand holding the handle 4 in this state, the hand lever 22 moves to the dead point as shown in FIG. It swings over to the "clutch disengaged" position. In this "clutch disengaged" state, the finger lever 23 is located above the handle grip, and when the thumb of the left hand holding the handle 4 in this state pushes down the finger lever 23, it is switched to the "clutch engaged" state. It is possible.

The gate-type lever 24 is supported in a freely swinging manner around the fulcrum P ₁ of the hand lever 22 so as to be independently swingable, and is always elastically held in a predetermined posture by a spring 28. Then, in the "clutch engaged" state shown in FIG. 5A, when the gate-shaped lever 24 is operated to swing downward, the operation link 27 integrated with the hand lever 22 is formed.
The other end portion 27a is pressed clockwise by the contact with the gate-type lever 24, and the hand lever 22 is swung to the "clutch disengagement" position beyond the dead point.

In this way, the main clutch is the hand lever 2
In addition to the opening / closing operation by 2, the opening / closing operation can be performed by operating the fingers with the finger levers 23 while holding the handle 4 with both hands, and in the case of a quick operation, the opening / closing operation can also be performed by operating the gate type lever 24. .

[Other Embodiments] The walk-type mobile agricultural machine may be a dedicated medium tillage management machine.

Further, the upper cover of the rotary cover may be composed of one piece without dividing into two, and the upper cover and the side cover may be adjustable in angle.

Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of drawings]

1] Overall side view

FIG. 2 is a schematic rear view.

FIG. 3 is a perspective view of an upper cover.

FIG. 4 is a vertical sectional rear view of the upper cover.

FIG. 5 is a side view of the main clutch operation section (a) Clutch engaged state (b) Clutch disengaged state

FIG. 6 is a plan view of a main clutch operation unit.

[Explanation of symbols]

 7 Rotary device 8 Rotary cover 20 Mud adhesion prevention plate 21 Locking metal fitting

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Ken Utani 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd.

Claims (3)

[Claims] 1. A rotor covering the upper part of a rotary device (7).
The angle of the recover (8) can be adjusted around the longitudinal axis of the machine.
It is configured to be able to be flipped up by the rotary device (7).
The cultivated soil that has been laid horizontally by the rotary cover (8)
In a walk-behind mobile agricultural machine that guides the direction, the rotary
On the inner surface of the bar (8), each cover (8A ₁), (8
A₂), (8B) a pair of left and right integrally covering the pivotal connection
The elastically displaceable mud adhesion prevention plates (20), (20)
A walking type mobile agricultural machine provided. 2. The walk-behind mobile agricultural machine according to claim 1, wherein the mud adhesion preventing plate (20) is locked to a locking metal fitting (21) provided at an end of the rotary cover (8). 3. The walk-behind mobile agricultural machine according to claim 1 or 2, wherein the mud adhesion preventing plate (20) is formed with a curving habit in advance so as to be convexly curved upward.