JP2588129Y2 - Walking rod for agricultural work machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION In the present invention, a resistance rod is projected rearward from a drive case between left and right drive shafts on which a working rotor is mounted, and the ground resistance of the resistance rod can be easily changed. The present invention relates to a resistance rod for a walking type agricultural work machine.

[0002]

2. Description of the Related Art As a conventionally known small-sized walking-type agricultural working machine, a transmission case for transmitting rotational power from an engine is hung down from a body equipped with an engine, and a lower end of the transmission case is integrated with the transmission case. A drive case is provided in the drive case to transmit power from the transmission case, a drive shaft for mounting a work rotor is protruded from the drive case to the left and right, a steering handle is extended upward from the machine body, and both drive shafts are provided. It is known that a resistance bar is protruded rearward from a drive case between them. The resistance bar of this conventional walking type agricultural work machine is
Usually, it consists of one rod, and the resistor part is bent in the horizontal direction from its mounting base, and the operator changes the frictional resistance of the resistor part with the soil by changing the pressing force below the control handle. The work status of the work rotor is
They are adjusted according to the type of soil and soil quality.

[0003]

[Problems to be Solved by the Invention] For this reason, an operator who works with the steering handle adjusts the pressing force by pressing the resistance portion of the resistance bar lightly or strongly against the soil from beginning to end. This is difficult to adjust, and especially when working while pressing the resistor against the soil, the pressing force is large and heavy labor is required, resulting in severe fatigue. was there.

The present invention has been made on the basis of the above circumstances, and can easily change the basic resistance of the resistance portion of the resistance bar, and can apply a downward pressing force of the operation handle by the operator. It is an object of the present invention to provide a resistance rod for a walking-type agricultural work machine that requires less power and can reduce fatigue.

[0005]

According to the present invention, in order to achieve the above object, a transmission case for transmitting rotational power from an engine is hung down from an airframe equipped with an engine, and a lower end portion of the transmission case is provided with: A drive case is provided integrally with the transmission case to transmit power from the transmission case, a drive shaft for mounting a work rotor is protruded from the drive case to the left and right, and a steering handle is extended upward from the machine body. ,
In a walking-type agricultural working machine in which a resistance bar projects rearward from a drive case between the two drive shafts, the resistance bar has a resistor portion that branches in a forked shape from a mounting base to a distal end side. The body is configured to be displaceable between a horizontal state and a vertical state so as to be attachable.

[0006]

According to the construction described above, the resistance bar of the walking type agricultural work machine of the present invention can be divided in advance into a forked bifurcated portion from the mounting base to the distal end side according to the type of work rotor, soil characteristics, work conditions and the like. Is displaced to a horizontal state or a vertical state and fixed, thereby changing the basic resistance force of the resistor portion, reducing the downward pressing force of the steering handle, and performing work with less fatigue.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. In the figure, reference numeral 1 denotes a walking-type agricultural working machine generally referred to as a small-sized management machine. The walking-type agricultural working machine 1 also serves as a transmission frame in which a small engine 2 is mounted with its output portion connected in a directly connected state. Aircraft 3
The transmission case 4 for transmitting the rotational power from the engine 2 is suspended. A centrifugal clutch (not shown) is provided in a portion connected from the output shaft of the engine 2 to the transmission case 4. A drive case 5 is provided integrally with the transmission case 4 at a lower end portion of the transmission case 4. The drive case 5 is provided in the drive case 5 via a worm wheel and a worm gear attached to the transmission shaft and the drive shaft. Power is transmitted.

Drive shafts 7, 7 for mounting a work rotor 6 protrude from the drive case 5 on both left and right sides.
The work rotor 6 is adapted to be attached to and detached from the drive shaft 7 by inserting and removing pins 8. The steering handle 9 is extended upward from the fuselage 3, and the grip 9a of the steering handle 9 is provided.
, A throttle lever 10 of the engine 2 is provided. Work rotors 6, 6 mounted on drive shafts 7, 7
A work unit cover 11 is attached to the fuselage 3 located below the engine 2.

A resistance rod mounting body 1 for mounting a resistance rod 12 behind the drive case 5 between the two drive shafts 7 and 7.
3 are protruding. The resistance rod 12 is the resistance rod mounting body 1
3, a mounting base 12a detachable from the mounting base 14 by a mounting bolt 14, and a resistor portion 12b branched in a forked shape from the mounting base 12a to the distal end side. By loosening the horizontal state or the vertical state and tightening the mounting bolt 14, the resistor portion 12b can be displaced and mounted. In addition, it is also possible to remove the resistance bar 12 from the above-mentioned resistance bar mounting body 13 and to attach a work implement such as a cultivator or a ridge stand to the resistance bar mounting body 13 for work.

The operation of the walking type agricultural machine 1 having such a configuration will be described. The walking-type agricultural work machine 1 includes a drive shaft 7, 7.
The work rotors 6 and 6 are mounted on the ground, and the resistance rod 12 is mounted on the resistance rod mounting body 13 and introduced into a field where tilling or medium plowing work is performed, the engine 2 is started, and the grip of the steering handle 9 is held. When the worker holding 9a releases the throttle lever 1
When the engine 2 is operated to increase the rotation speed of the engine 2, the centrifugal clutch is engaged and the transmission case 4 to the drive case 5
And the drive shafts 7, 7 are rotated to perform tilling or medium tilling while the machine body is advanced by the work rotors 6, 6.

When the tilling or medium tilling operation is performed, the resistance of the resistance bar 12 acting on the soil is small unless the operator holding the grip portion 9a presses the control handle 9 downward. The forward movement speed of the body by the rotation of the rotors 6, 6 becomes faster, the tilling or middle tilling work becomes rough, and the tilling depth becomes shallow. On the other hand, when the control handle 9 is pressed downward, the resistance of the resistance bar 12 acting on the soil increases, the forward speed of the machine body due to the rotation of the work rotors 6, 6 decreases, and the tilling or medium tilling work is fine. , And the cultivation depth becomes deep.

As described above, the working state of the tilling or the middle tilling operation by the work rotors 6 and 6 is changed by the resistance force of the resistance rod 12 acting on the soil, but the resistance rod 12 of the present invention has the mounting base 12a and the mounting base. 12a, a forked bifurcated resistor part 12b is formed on the distal end side. The bifurcated resistive part 12b can be displaced between the horizontal state and the vertical state by the mounting bolt 14 and fixed. -The basic resistance of the resistance bar 12 is changed by setting the forked resistance body portion 12b in a horizontal state or a vertical state in advance in accordance with the types, soil properties, working conditions, etc. Appropriate work can be performed with labor.

The resistance rod mounting body 13 of the above embodiment has a structure in which the base end is fixed to the drive case 5 and the vertical angle of the resistance rod 12 with respect to the body 3 cannot be changed. However, in practice, it may be desirable to adjust the vertical angle of the resistance bar 12 depending on the work place, the height of the worker, and the like. FIG. 6 shows an embodiment in which the vertical angle of the resistance bar 12 can be adjusted. That is, a fixing portion 16 fixed to the drive case 5 is connected to the front side of the resistance rod mounting body 13a via a rotation support portion 15 having a chrysanthemum seat, and an angle adjustment knob 17 provided on the rotation support portion 15 is provided. The angle of the resistance bar mounting body 13a can be adjusted. In this embodiment, the angle of the resistance rod mounting body 13a is adjusted to change the ground angle of the resistance rod 12, so that an appropriate operation can be performed according to the work place, the height of the worker, and the like.

[0014]

As described above, according to the resistance rod of the walking type agricultural work machine according to the present invention, the resistance rod is provided with a resistor portion that bifurcates from the mounting base to the distal end side, and the bifurcated resistance is provided. The body is displaceable between a horizontal state and a vertical state so that it can be mounted. Therefore, according to the type of work rotor, soil characteristics, work conditions, etc., a resistor that branches in a forked shape from the mounting base to the tip side in advance. The basic resistance force of the resistance part is changed by displacing and fixing the part to the horizontal state or the vertical state, the pressing force below the steering handle is reduced, and work is performed with less fatigue It can be performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a walking-type agricultural working machine according to the present invention as viewed from the side, with a resistance bar mounted vertically.

FIG. 2 is a side perspective view of the entire walking-type agricultural work machine having a resistance bar mounted in a horizontal state.

FIG. 3 is an overall front view of the walking type agricultural work machine according to the present invention.

FIG. 4 is a rear view of the same.

FIG. 5 is a bottom view of a main part.

FIG. 6 is a side view of another embodiment of the resistance bar mounting portion.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 walking agricultural working machine 2 engine 3 body 4 transmission case 5 drive case 6 work rotor 7 drive shaft 8 pin 9 steering handle 9 a grip 10 throttle lever 11 work cover 12 resistance rod 12 a mounting base 12 b bifurcated resistor 13, 13a Resistance rod mounting body 14 Mounting bolt 15 Rotation support section 16 Fixing section 17 Angle adjustment knob

Claims (1)

(57) [Scope of request for utility model registration] A transmission case for transmitting rotational power from an engine is suspended from a body on which an engine is mounted, and a drive case is provided integrally with the transmission case at a lower end portion of the transmission case to transmit power from the transmission case. Then, a drive shaft for mounting the work rotor is protruded from the drive case to the left and right, and a steering handle is extended upward from the fuselage.
In a walking-type agricultural working machine in which a resistance bar projects rearward from a drive case between the two drive shafts, the resistance bar has a resistor portion that branches in a forked shape from a mounting base to a distal end side. A resistance bar for a walking-type agricultural working machine, wherein a body portion is configured to be displaceable between a horizontal state and a vertical state so as to be attachable.