JP3028922B2 - Tiller resistance rod - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilling work device mounted on a rotating shaft that projects horizontally from the lower end of a transmission case of a walking cultivator. Field of the Invention The present invention relates to a tiller resistance bar provided with a resistance bar that gives a resistance.

[0002]

2. Description of the Related Art Conventionally, there is known a cultivator in which a tilling device is mounted on a rotating shaft projecting horizontally from the lower end of a transmission case of a walking type cultivator and a resistance bar is provided behind the tilling device. I have. And the operator who operates the cultivator,
The depth of penetration of the resistance rod into the cultivated soil by adjusting the vertical pressing force of the steering handle against the field scene is adjusted, and the tilling work condition by the tilling work equipment is adjusted by changing the movement resistance of the aircraft. ing. In other words, when the depth of the penetration of the resistance rod into the cultivated soil is increased, the moving speed of the airframe becomes slower, and the particles of the cultivated / crushed soil by the tilling operation device become finer. When the depth is shallower, the moving speed of the body becomes faster, and the particles of the plowed / crushed soil by the plowing work device become coarse.

[0003] Further, there is also known one in which another resistor is provided at the tip of the above-mentioned resistance bar so that the projection depth into the tilling soil can be adjusted.

[0004]

In the above-described conventional cultivator equipped with a resistance rod, the operator always adjusts the depth of penetration of the resistance rod into the cultivated soil by the operation handle (in most cases, the operation of the control rod). There is a problem that the degree of fatigue is increased because the work is performed while applying weight to the handle and pressing downward. In addition, since the worker performs the work by intuition, there is a problem that the tilling work state is not constant and work unevenness is likely to occur. The present invention has been made to solve the above problems.

[0005]

In order to achieve the above-mentioned object, the present invention provides a tilling device 7 mounted on a rotary shaft 6 which projects horizontally from the lower end of a transmission case 5 in the left-right direction. Cultivator 1 with resistance bar 9 behind
In the above, the resistance bar 9 is detachably attached to the rear part of the cultivator 1 by changing its height, and extends in a diagonally downward and rearward direction of the fuselage. A wide ground contact portion 13 which is bent in a shape of a letter and is fixed in the extension direction of the rod body 12 and is in contact with the surface of the soil cultivated by the tilling operation device 7 while being spread. A resistor support portion 14 having a vertical cylindrical portion on the upper surface of the bent portion at the connection point with the rod body 12 and standing upright behind the rod body 12 in the traveling direction; A resistor 15 which is inserted into the resistor support portion 14 and is fixed so that the projection depth into the cultivated soil can be adjusted. The resistor 15 extends from the rod 12 to the wide ground portion 13. It can rise above the continuous lower surface, and the resistance action is almost non-resistance at this rising position Characterized in that it is adjustable in the state.

[0006]

With the above construction, the resistance bar for a cultivator according to the present invention is detachably attached to the rear portion of the cultivator 1 at a different height and extends obliquely downward to the rear of the machine. The rod 1 is bent to the lower end portion of the
2 and a wide ground contact portion 13 extending in contact with the surface of the soil tilled by the tilling work device 7, and bent at a connection point between the wide ground contact portion 13 and the rod body 12. A resistor support portion 14 having a vertical cylindrical portion on the upper surface of the portion and standing upright so as to stand upright behind the rod 12 with respect to the traveling direction, is inserted through the resistor support portion 14. By the resistor 15 having a protruding depth into the cultivated soil which is fixed so as to be adjustable, an appropriate operation is performed according to the soil quality of the cultivated field, the purpose of the operation, and the like. In addition, the wide ground contact portion 13 enables stable work, and the degree of fatigue of the worker is reduced. Further, in some cases, it is possible to perform the operation in a hand-free state.

[0007]

Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. 1 to 4
1 shows a first embodiment of the present invention. In FIG. 4, reference numeral 1 denotes a walking-type small power cultivator.
An engine 3 is mounted on the upper side of the body 2, a steering handle 4 extending obliquely upward and rearward from a rear portion of the body frame 2 is provided, and a rear end handle grip 4 a is provided.
A rotating shaft 6 protrudes in the left-right horizontal direction from a lower end of a transmission case 5 projecting downward from the body 2, and a tilling rotor (tiling work device) 7 is mounted on the rotating shaft 6.

Further, a resistance rod mounting portion 8 is provided at a rear portion of the power cultivator 1, and a resistance rod 9 according to the present invention, which is shown in detail in FIGS. ,
The height is adjustable via a mounting pin 11 and is detachably provided.

In the resistance bar 9, a plurality of pin holes 10a are formed at predetermined intervals in a mounting portion 10 which is mounted on the resistance bar mounting portion 8, and these pin holes 10a are selected and the resistance is fixed by mounting pins 11. By attaching to the rod attaching portion 8, it can be attached to and detached from the body 2 at different heights. An inclined rod body 12 is formed continuously from the mounting part 10, and a wide ground contact part 13 that extends and contacts the soil surface tilled by the tilling work device 7 is integrally formed at the lower end of the rod body 12. It is fixed. A cylindrical resistor support portion 14 is provided at a position where the wide ground contact portion 13 is fixed to the rod 12, and a resistor 15 is attached to the support portion 14 by way of a mounting pin 16 to cultivate soil. It is mounted so that the protrusion depth can be adjusted. The resistor 15 has a plurality of pin holes 15a formed therein.
, The downward projecting depth from the wide contact portion 13 is adjusted.

Next, the operation of the power cultivator 1 having the resistance bar 9 configured as described above will be described.

In the power cultivator 1, the power is shifted from the engine 3 and transmitted to the rotating shaft 6 via the transmission case 5.
The tilling work is performed while rotating the tilling rotor (tiling work device) 7 in the forward direction and moving the machine body. Depending on the type of work (tiling or crushed soil, etc.) by the tilling rotor 7, the soil conditions of the field where the work is performed, etc., the projecting depth of the resistor 15 into the tilling soil is previously attached to the support portion 14. Adjust via 16. Then, the operator grips the handle grip 4a of the steering handle 4 and holds the power cultivator 1
In the resistance rod 9, the wide ground contact portion 13 moves while contacting the cultivated soil surface, and works stably in a state where the tip of the resistor 15 is protruded downward therefrom. Requires little power to operate the steering wheel.
Further, in some cases, it is also possible to drive the vehicle in a hand-free state. The height at which the resistance bar 9 is mounted on the resistance bar mounting section 8 is adjusted according to the height of the worker.

FIG. 5 shows a second embodiment of the resistance bar according to the present invention. The resistance bar 9a according to the second embodiment is slightly larger than the resistance bar 9 shown in FIGS. 1 to 4, and a plurality of pin holes 17a are formed in the mounting portion 17 at predetermined intervals. The pin hole 17a is selected and attached to the rear hitch of the cultivator via a mounting pin. An inclined rod body 18 is formed continuously from the mounting part 17, and a wide ground contact part 19 that extends and contacts the cultivated soil surface is integrally fixed to the lower end of the rod body 18. . The fixed portion of the wide ground contact portion 19 fixed to the rod 18 has a cylindrical resistor support portion 2.
0 is provided, and a resistor 21 is attached to the support portion 20 via an attachment pin 22 so as to adjust the protruding depth into the cultivated soil. A plurality of pin holes 20a are formed in the resistor 21. By selecting these pin holes 20a and mounting them with the mounting pins 22, the depth of projection downward from the wide ground portion 19 is adjusted.

The resistance bar 9 according to the second embodiment having the above-described configuration is used.
Also in a, it operates similarly to the resistance bar 9 of the said 1st Embodiment, and a stable tilling operation | work is performed.

[0014]

According to the tiller resistance bar according to the present invention,
In the tilling operation, the resistance of the resistor 15 in the cultivated soil is adjusted in advance according to the hard or soft soil condition of the field where the tilling operation is performed, the working purpose, etc. The work proceeds while giving the resistance to stop the forward movement. While the work is in progress, the wide ground contact portion 13 moves while spreading and touching the cultivated soil surface, so that the worker proceeds with almost no force on the steering wheel operation, and thus the wide ground contact is performed. The stable tilling and immediate forward operation can be performed by the portion 13 and the resistor 15, and the degree of fatigue of the operator during the operation can be greatly reduced. In some cases, the operation can be performed in a hand-free state.

[Brief description of the drawings]

FIG. 1 is a side view of a resistance rod for a cultivator according to the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of the entire cultivator equipped with the cultivator resistance rod according to the present invention.

FIG. 5 is a side view of another embodiment of a tiller resistance bar according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Power cultivator 2 Body 3 Engine 4 Control handle 4a Handle grip 5 Transmission case 6 Rotating shaft 7 Tilling rotor (tiling work device) 8 Resistance rod mounting part 9, 9a Resistance rod 10, 17 Mounting part 10a, 17a Pin hole 11, 16,22 Mounting pin 12,18 Inclined rod 13,19 Wide grounding part 14,20 Resistor support part 15,21 Resistor 15a, 21a Pin hole

Claims (1)

(57) [Claims] 1. A tilling device (7) is attached to a rotating shaft (6) projecting horizontally from the lower end of a transmission case (5), and a resistance rod (9) is provided behind the tilling device (7). In the walking type cultivator (1) provided with the cultivator, the resistance bar (9) is detachably attached to a rear portion of the cultivator (1) at a different height and extends obliquely downward and rearward of the fuselage ( 12), the side to the lower end of the rod (12)
It is bent in the shape of an inverted letter in a plan view and fixed in the extension direction of the rod (12), and has a spread with respect to the soil surface tilled by the tilling work device (7). Wide contact area (13)
And contact between the wide ground contact portion (13) and the rod (12).
It has a vertical cylinder on the top of the bend at the connecting point,
Standing upright behind bar (12) in direction
And the resistor support portion (1).
4) can be inserted into the cultivated soil to adjust the projecting depth
The resistor (15) is fixed from the rod (12) to the wide ground.
Can rise above the continuous lower surface leading to the portion (13),
In this raised position, the resistance action can be adjusted to almost no resistance
A resistance rod for a cultivator, characterized in that it has a function .