JPH0530802A - Orchard tiller - Google Patents

Abstract

(57) [Summary] [Purpose] The field around trees such as orchards can be used for weeding and cultivating without hindrance to the lower branches, and a large area can be used when the cultivating machine is moved outside the field or is not in use. We will provide a tiller for orchards that can be moved and parked without taking up. [Structure] A tillage machine body B, which is provided on a side of the traveling vehicle body A and has support wheels 1 whose height is lower than that of the traveling vehicle body A.
Is attached via a protrusion adjusting mechanism 2 capable of adjusting the degree of protrusion to the side, and the middle tillage machine body B is rotatably provided from a horizontal grounded state to a state close to vertical so that a large area is not taken when not in use. The holding mechanism 3 for holding the above is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a orchard tiller capable of weeding or cultivating an agricultural field around a tree such as an orchard on a lower branch without hindrance.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
Herbicides are often used for soil management work under canopies in orchards where the ceiling is closed, such as in pear or vineyards.

[0003] In this regard, the number of producers who want to mechanically manage grass mowing and middle tillage work in the field is increasing due to reasons such as organic cultivation and environmental conservation.

The present invention solves this problem by providing a tractor with a medium tiller for weeding and cultivating, and safely and efficiently performing work such as weeding and cultivating under the canopy of an orchard or the like around a tree. We provide a medium tiller for orchards that can be used without difficulty on the lower branches and can be moved outside the field or parked without taking up a large area when the medium tiller is moved outside the field or when it is not used. Doing is a technical issue.

[0005]

[Means for Solving the Problems] A lateral tilling degree of a tillage machine B having a support wheel 1 having a height lower than that of the traveling vehicle A can be adjusted on the side of the traveling vehicle A. The holding mechanism 3 is attached through the protrusion adjusting mechanism 2 so as to be rotatable from the horizontal grounding state to a state close to the vertical state, and to hold it so as not to take a large area when not in use. The present invention relates to an orchard tiller.

In addition, a protrusion adjusting mechanism 2 capable of adjusting the degree of lateral protrusion of a tillage machine B having a support wheel 1 whose height is lower than that of the traveling vehicle A on the side of the traveling vehicle A. And a swivel holding mechanism 4 for holding the tiller machine B so that it can be swung rearward from the side so as not to take up a large area when not in use. Machine.

[0007]

[Advantageous Effects] The protrusion adjustment to the side of the traveling vehicle body A can adjust the degree of lateral protrusion of the tillage machine body B configured to have a height lower than that of the traveling vehicle body A and performing work such as weeding and tilling. Since it is attached via the mechanism 2, when the operator rides on the traveling vehicle A and adjusts the protrusion degree of the protrusion adjusting mechanism 2 to drive the vehicle in a field such as an orchard, the traveling vehicle A
Since the height of the middle tillage machine B attached to the side of the vehicle is lower than that of the traveling vehicle body A, there is no trouble such as the middle tillage machine B contacting and abutting the lower branch of the tree, etc. Weeding and middle tillage work can be carried out in the fields below.

Further, when there is a possibility that the middle tillage machine B during traveling may come into contact with a trunk or an obstacle, the protrusion adjusting mechanism 2 lowers the protrusion degree of the middle tillage machine B to bring the middle tillage machine B toward the traveling vehicle body A side. The traveling vehicle body A is caused to travel while contacting and abutting the obstacle of the middle tillage machine B, and the protrusion degree of the middle tillage machine B is restored again, so that weeding and middle tillage work under the crown of the orchard or the like are continued.

Further, the protrusion adjusting mechanism 2 lowers the protrusion degree of the middle tiller B to bring the middle tiller B closer to the traveling vehicle body A side, and the holding mechanism 3 rotates the middle tiller B from a horizontal grounding state to a nearly vertical state. By holding it in place, it does not take up a large area when the medium tiller B is moved out of the field or when it is not used,
It is possible to move the middle cultivator body B out of the field and park it.

Further, when the turning holding mechanism 4 is provided,
Similarly to the above, the protrusion adjusting mechanism 2 lowers the protrusion degree of the middle cultivator body B, and the swing holding mechanism 4 swings and holds the middle cultivator body B rearward from the side of the traveling vehicle body A. When moving to outside the field or when not in use,
It is possible to move or park the middle tillage machine B without taking a large area.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of the present invention. A tractor is used as a traveling vehicle body A, and a frame 5 is provided behind the traveling vehicle body A and equipped with a hydraulic device serving as a power source for weeding and tilling work. Of the middle tillage machine B, in which the height of the machine body is lower than that of the traveling vehicle body A, and four caster-shaped support wheels 1 are hung vertically on the side thereof. The case where it is attached via the mechanism 2 is illustrated.

A mast 6 is provided on the frame 5, and a swivel holding cylinder 7 which can be horizontally rotated about the mast 6 is fitted into the mast 6, and a bottom flange 7'of the swivel holding cylinder 7 is fitted.
The bottom fixing plate 6 ′ of the mast 6 is fixed by a shear pin bolt 8 and the base of the outer corner cylinder 9 of the protrusion adjusting mechanism 2 is attached to the bearing portion 7 a on the right side (FIGS. 1 and 5) of the swivel holding cylinder 7. The rotation link of the holding mechanism 3 which pivotally attaches the end and vertically holds the middle-cultivator body B on the bearing portion 7b on the left side (FIGS. 1 and 5).
The base end of 11 is pivotally mounted, the base of a rotary cylinder 12 is pivotally mounted to the other end 11 'of the rotary link 11, and the tip of a piston rod 12' of the rotary cylinder 12 is attached to the outside angle of the protrusion adjusting mechanism 2. It is pivotally attached to a locking piece 10 attached to the upper end of the other end of the tube 9.

Inside the outer corner cylinder 9 of the protrusion adjusting mechanism 2, an inner corner cylinder 13 having a connecting arm rod 14 for suspending and holding the middle tillage machine body B connected at the other end is slidably fitted and inserted into the inner corner cylinder 13. A protrusion adjusting cylinder 15 is attached to the inside of the bearing, and the base end of the protrusion adjusting cylinder 15 is attached to the bearing 7a.
Is pivotally attached to the inside of the closing wall of the outer square cylinder 9, and the end of the piston rod 15 'of the adjusting cylinder 15 is on the right side of the inner square cylinder 13 (FIGS. 1 and 2).
Pivot inside the occlusion wall.

In the figure, reference numeral 16 is a lift operation lever for actuating the rotary cylinder 12 of the holding mechanism 3, 17 is an offset operation lever for actuating the protrusion adjusting cylinder 15 of the protrusion adjusting mechanism 2, and 18 is a middle tiller B. The operating lever for work equipment, 19 for operating the rotary of, is an oil tank.

The hydraulic pump 21 is operated by the power input from the power take-out port (PTO) of the traveling vehicle A via the power transmission shaft 20, and the operating lever 18 for the working machine is tilted rearward so that the working machine for weeding and tilling work can be operated. The rotary is operated to move the traveling vehicle body A forward, and work such as weeding and cultivating in a field under a canopy such as an orchard is performed.

When it is discovered that the tiller B can come into contact with or abut on the tree trunk or an obstacle during traveling, if the offset operating lever 17 is tilted backward at an appropriate position immediately before the obstacle, the protrusion adjusting mechanism 2 can be operated. The piston rod 15 'of the protrusion adjusting cylinder 15 provided inside the inner corner cylinder 13 contracts, the lateral protrusion of the connecting arm body 14 connected to this contracts, and the middle tiller body B moves to the traveling vehicle body A. Since it comes close to, it is possible to prevent the middle tillage machine body B from coming into contact with the trunk or the obstacle.

At this time, since the four support wheels 1 in the form of casters, which can easily roll and turn, can be erected on the middle tillage machine B, the lateral protrusion of the middle tillage machine B can be prevented. The lateral movement of the tiller machine B is possible by freely following the movement of the protrusion adjusting cylinder 15 to be adjusted. When the middle tillage machine B has passed through the tree trunk or obstacle, tilt the offset operation lever 17 forward again and the piston rod of the protrusion adjusting cylinder 15 of the protrusion adjusting mechanism 2
15 'extends, and by the operation opposite to the above, the degree of protrusion of the middle tillage machine body B from the traveling vehicle body A is restored to continue weeding and middle tillage work.

The holding mechanism 3 will be described.

The offset operating lever 17 is tilted rearward, and the piston rod 1 of the protrusion adjusting cylinder 15 of the protrusion adjusting mechanism 2 is pushed.
5'is contracted to move the tiller B to the side of the traveling vehicle A, the lift operation lever 16 is tilted forward to contract the piston rod 12 'of the rotating cylinder 12, and the tip of the outer corner cylinder 9 is attached to the bearing portion of the swivel holding cylinder 7. When it is rotated upward with 7a as a fulcrum, the inner square tube 13
Similarly, since the connecting arm rod 14 also rotates upward and the supporting wheel 1 of the intermediate cultivator body B moves away from the ground, a holding chain is attached to the end of the intermediate cultivator body B.
Hook one side of 23 and pull it to the left, as shown in Figure 2.
The body is rotated in a nearly vertical state with the bearing portion 14 "of the connecting arm rod 14 as a fulcrum, and the other end of the holding chain 23 is connected to the base end 1 of the connecting arm rod 14.
By locking near 4 ', the tiller machine B is moved to the traveling vehicle A
It is rotated and held laterally from a horizontal grounding state to a nearly vertical state. The turning holding mechanism 4 will be described.

In the same manner as described above, the protrusion adjusting mechanism 2 is used to lower the protrusion degree of the middle tillage machine B, so that the bottom fixing plate 6'of the mast 6 provided on the frame 5 and the bottom flange 7'of the swivel holding cylinder 7 are connected to each other. Pull out the shear pin bolt 8 that is fixed,
When the middle tillage machine body B is swung rearward from the side of the traveling vehicle body A, the swivel holding cylinder 7 is swung backward around the mast 6 as a spindle, and the shear pin bolt 8 for the shear pin bolt 8 drilled in the bottom flange 7 ′ of the swivel holding cylinder 7 is provided. Since the bolt hole 7 "also swivels at the same time to coincide with the bolt hole 6" which is formed in the bottom fixing plate 6'of the mast 6, the shear pin bolt 8 is inserted into the bolt hole 7 "and 6".
By inserting and fixing the cultivator body B,
Held behind.

Further, the shearing bolt 8 travels while the middle tillage machine B is working, due to weeds or lower branches, while the positions of the trunks and obstacles cannot be sufficiently confirmed, so that the middle tillage machine B contacts the trunks and obstacles. In this case, the shear pin bolt 8 as a safety device is cut, and the middle tillage machine body B is horizontally rotated about the mast 5 as a support shaft. Therefore, the traveling vehicle body A and the middle tillage machine body B are rotated.
Protects the aircraft from damage.

In the figure, reference numeral 22 is a hydraulic motor, 24 is a plowing depth adjusting mechanism, 25 is a machine frame, 26 is a rotor, and 27 is a cover.

[0023]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, while the operator rides on the traveling vehicle body to drive in a field such as an orchard, he / she can perform work such as weeding or cultivating under the crown of a tree. It can be carried out on the lower branch around it without any hindrance.

Further, since the protrusion adjusting mechanism capable of adjusting the degree of protrusion of the tiller to the side is prevented from coming into contact with the trunk or obstacles during traveling, the tiller is used in an orchard or the like. Work such as weeding and tilling can be realized over almost the entire field under the canopy.

Further, even if the middle tillage machine runs due to weeds or lower branches and the position of the middle tillage machine cannot be sufficiently confirmed and comes into contact with a trunk or an obstacle, the shear pin bolt is cut to protect the traveling vehicle body and the middle tillage machine body from damage. To be done.

Further, the middle tillage machine body is held by rotating the middle tillage machine body from a horizontal state to a nearly vertical state by a holding mechanism,
Since it can be swung from the side to the rear by the swivel mechanism and held, it is possible to move or park the medium tiller without taking up a large area when moving the medium tiller out of the field or when it is not used.

Further, since the middle tillage machine body can be rotated and held in a nearly vertical state by the holding mechanism, it is effective during maintenance of the middle tillage part of the middle tiller.

As described above, the present invention is a plow tiller for orchards which has excellent working efficiency and is practically excellent in that it does not take up a lot of space when it is moved or not used.

[Brief description of drawings]

FIG. 1 is a partially cutaway rear view showing an operating state of a holding mechanism according to an embodiment of the present invention.

FIG. 2 is a partially cutaway rear view showing a usage state of the holding mechanism according to the embodiment of the present invention.

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

FIG. 4 is a plan view showing an operating state of the turning holding mechanism according to the embodiment of the present invention.

FIG. 5 is a rear view in which a part of a swivel holding mechanism according to an embodiment of the present invention is cut away.

[Explanation of symbols]

A running vehicle B medium tiller 1 support wheels 2 Projection adjustment mechanism 3 holding mechanism 4 swivel holding mechanism

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masao Sato             1-3-50 Higashihonmachi, Joetsu-shi, Niigata Stock             Company Sato factory

Claims (2)

[Claims] 1. A middle tillage machine body, which is provided on a side of a traveling vehicle body and has support wheels whose height is lower than that of the traveling vehicle body,
Attached via a protrusion adjustment mechanism that can adjust the degree of protrusion to the side, the central tiller body is rotatably provided from a horizontal grounding state to a state close to vertical, and holds so as not to take a large area when not in use. A tiller for orchards characterized by a holding mechanism. 2. A tillage machine body, which is provided on a side of the traveling vehicle body and has support wheels whose height is lower than that of the traveling vehicle body,
Attached via a protrusion adjusting mechanism that can adjust the degree of protrusion to the side, the central tiller body is provided so as to be rotatable rearward from the side,
An orchard plow tiller that is equipped with a swivel holding mechanism that holds a large area when not in use.