JP2583254B2 - Bean harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field The present invention is a bean harvester for cutting soybeans and the like, which is configured so that the culm after cutting can be discharged to either the left or right side of the machine body.

(B) Conventional technology Conventionally, technology related to bean harvesters has been known. For example, as shown in Japanese Utility Model Laid-Open No. 62-104639.

However, in the conventional bean harvester, the direction of release of the grain stalk after cutting is only one, and only round cutting can be performed, and reciprocal cutting cannot be performed.

(C) Problems to be Solved by the Invention In the present invention, the discharge direction can be changed in one bean harvester, and not only the round cutting but also the reciprocating cutting can be performed.

Further, the rotation of the cutting blade can be reversed at the same time as the action change of the release direction, so that the grain culm can be reliably distributed to the left and right.

(D) Means for Solving the Problem The object of the present invention is as described above, and a configuration for achieving the object will be described below.

A rotary cutting blade 25 is provided at a rear portion between the left and right dividers 1.1, and is positioned above the cutting blade 25 in the traveling direction. The side divider 12 is provided. A cutting direction changing body 5 having the tip position of the side divider 12 as the center of the left-right rotation is provided, and the cutting direction changing body 5 is tilted left and right by a cutting direction changing lever 5a to cut the culm. The tilting direction can be changed.

When the cutting direction changing body 5 is switched, the cutting blade 25
Are arranged in the reverse direction.

(E) Embodiment The purpose and configuration of the present invention are as described above. Next, the configuration of the embodiment shown in the attached drawings will be described.

 1 to FIG. 5.

The engine E is mounted on the wheel drive unit cover 6, and the handle 9 is arranged to protrude rearward and upward from the wheel drive unit cover 6. Also, the cereal stalk guide plate arm 4 projects forward from the wheel drive unit cover 6 and
The frame 8 is suspended downward from the middle of the frame.

The wheel 11a is supported between the left and right wheel drive unit covers 6 by bearings.

A cutting blade 25 composed of a disk blade below the frame 8
The divider arm 2 projects forward from the lower part of the frame 8 above the cutting blade 25, and the divider 1
Is attached. Also, at a position above the divider arm 2 And a stalk guide plate 3 of Side divider 12 is provided.

The upper part of the cereal stem is guided by the side debada 12, and the root part of the cereal stem is guided by the cereal stalk guide plate 3 to be discharged to the left and right.

In the part where the front part of the cereal stem guide plate arm 4 is bent downward, The cutting direction changing body 5 is located at the tip of the side divider 12
As shown in FIG. 5, the cutting direction changing body 5 is biased in one direction with a fulcrum moving spring 5b interposed therebetween. The cutting direction changing body 5 has a cutting direction changing lever 5a extending rearward.

A side divider 12 projects left and right from the front end of the grain stalk guide plate arm 4, and a grain stalk guide plate 3 projects left and right below. The outer end of the cutting blade 25 is configured to protrude from the periphery of the culm guide plate 3 to the left and right positions.

The upper part of the frame 8 is covered with a mowing drive unit cover 7.

In the grip portion of the handle 9, a cutting blade clutch lever 10 is disposed on the right side, and a wheel clutch lever 11 is disposed on the left side. A fixing lever 14 for fixing the wheel clutch lever 11 to the ON state is provided.
There is also a fixed lever that locks with 10 turned on.

In FIG. 3, the cutting direction changing lever 5a is tilted to the right to show a state in which the cut culm is released to the right. Push the full width of the culm of the divider 1.1 to the right, and release the culm leaning to the right smoothly to the right.
The part of the cutting direction changing lever 5a constitutes a guide for the upper part of the grain stem.

In FIG. 4, the cutting direction changing lever 5a is tilted to the left, the cutting direction changing body 5 at the tip is disposed on the right side between the dividers 1.1, and the harvested culm is guided and released to the left. ing.

FIG. 5 shows the side surfaces of the cutting direction changing body 5, the cutting direction changing lever 5a, and the fulcrum moving spring 5b.

Next, an embodiment in which the rotation direction of the cutting blade 25 cannot be reversed will be described with reference to FIGS.

Double pulleys 40a and 40b into which the output shaft 46 of the engine E can be inserted are provided on the upper surface of the mowing drive unit cover 6.

A belt 44 is wound around 40a of the double pulley 40, and power is transmitted to a pulley 42 of an input shaft 47 of a reduction gear box 48. An output shaft 51 of the reduction gear box 48 protrudes to the side of the axle drive unit cover 6, and a belt 19 is provided between the pulley 18 fixed to the output shaft 51 and the pulley 20 provided on the axle of the wheel 11a. It is interposed.

The tension clutch arm 23 is provided between the output shaft 51 of the reduction gear box 48 and the axle, and the tension clutch arm 23 and the tension pulley constitute a traveling clutch device. The traveling clutch device is connected to the wheel clutch lever 11 by a remote control wire 22.

The driving device of the cutting blade 25 winds the belt 43 around the side 40b of the double pulley 40, and winds the other end of the belt 43 around the pulley 41 on the cutting blade shaft 45. Cutting blade 25 at the lower end of the cutting blade shaft 45
It is fixed.

With cereal stem guide plate arm 4 The cutting direction changing body 5 is located at the tip of the side divider 12
, The side divider 12 and the tip of the grain stalk guide plate 3 are fixedly mounted.

Also, a tension pulley 65 for tensioning the belt 43 described above.
Is extended by a remote control wire 66 and can be operated by a cutting blade clutch lever 10 to form a cutting clutch device.

Next, an embodiment in which a reversing device for the cutting blade 25 is provided will be described with reference to FIGS.

Also in this case, the drive system of the wheels 11a has the same configuration.

The reversing device includes a friction disk 56 fixed to the output shaft 46 of the engine E and a friction disk 50 on the slide drive shaft 57.
Abut the slide drive 57 on the slide drive 57.
Are slidably provided, and the forward / reverse rotation changing disk 52 is in contact with the driven-side friction disk 58.

A belt 43 is wound between a pulley attached to the friction disk 58 and the pulley 41 on the cutting blade shaft 45.

With the above configuration, the forward / reverse rotation can be obtained by moving the forward / reverse change disk 52 back and forth. The operation of the forward / reverse change disk 52 is performed by rotating the bell crank 55 in conjunction with the operation of the cutting direction changing lever 5a, connecting the link 54 to the bell crank 55, and rotating the shifter arm 53,
The pin 52a of the forward / reverse change disk 52 is configured to be operated forward and backward.

Further, the power connection / disconnection clutch device of the mowing section provided with the forward / reverse change disk 52 can be realized by rotating the slide drive shaft 57 up and down around the bracket 72 and the pivot shaft 73 in FIG. And

That is, the pivot shaft is moved from the outer periphery of the bearing cylinder 75 of the slide drive shaft 57.
73 is projected right and left, and the pivot shaft 73 is attached to the bracket 72.
It is pivoted to. And the pivot shaft 73 is a bracket
An operation wire 66 'connected to the cutting blade clutch lever 10 is connected to a portion protruding from the blade 72, and by gripping the cutting blade clutch lever 10, the pivot shaft 73 rotates to move together with the bearing cylinder 75. The slide drive shaft 57 is rotated up and down, and the forward / reverse change disk 52 on the slide drive shaft 57 is
The clutch is configured to be released from the clutch.

When the forward / reverse rotation changing disk 52 is separated from the friction disk 58, the forward / reverse rotation changing disk 52 moves forward and backward via the link 54 and the sinter arm 53 by operating the cutting direction changing body 5. .

At this time, since the forward / reverse change disk 52 and the friction disk 58 are not in contact with each other, they can slide smoothly.

When the cutting blade clutch lever 10 is released, the slide drive shaft 57 and the bearing cylinder 75 are rotationally urged by the urging spring 71, so that the portion of the forward / reverse change disk 52 comes into contact with the friction disk 58, and power is supplied. Is transmitted.

FIGS. 10 to 12 disclose a configuration in which the position of the cutting blade shaft 45 is moved back and forth so that the belt 43 can be tensioned.

A U-shaped frame 60 protrudes forward from the frame 8, and a slide frame 59 is slidably fitted back and forth inside the U-shaped frame 60.

A fixing bolt 62 for fixing the slide frame 59 at the position where the slide frame is slid is provided on a bolt seat fixed inside the U-shape of the slide frame 59.

Further, a screw adjusting device 61 for sliding the slide frame 59 is configured.

(F) Effects of the Invention The present invention is configured as described above, and has the following effects.

First, the conventional bean harvester cuts down to either the left or right. On the other hand, since the cutting method was used, only the left or right turning can be performed. It is possible.

As a result, reciprocating mowing can be performed as desired by the aperator.

Secondly, when the release direction is changed, the rotation direction of the cutting blade 25 can be changed, so that the harvested grain culm can be transported reliably by the rotation force of the cutting blade 25. The switching is performed in a reliable and orderly manner.

[Brief description of the drawings]

FIG. 1 is an overall side view of a bean harvester of the present invention, FIG.
FIG. 3 is a plan view of the same, FIG. 3 is a plan view of a right-side discharge state with respect to the traveling direction, FIG. 4 is a plan view of the same left-side discharge state, and FIG. , Sixth
FIG. 7 is a plan view showing a cutting blade drive system, FIG. 7 is a side view thereof, FIG. 8 is a plan view of an embodiment having a reversing mechanism of the cutting blade 25, FIG. 9 is a side view thereof, and FIG. FIG. 11 is a perspective view of a mechanism for adjusting the cutting blade shaft 45 back and forth, and FIG.
FIG. 12 is a plan sectional view of the same. 5: Cutting direction changing body 5a: Cutting direction changing lever 25: Cutting blade 52: Forward / reverse rotation changing disk 57: Slide drive shaft 58: Friction disk

Claims (2)

(57) [Claims] 1. A rotary cutting blade 25 is provided at a rear portion between left and right dividers 1.1, and is positioned above the cutting blade 25 in a traveling direction. The side divider 12 is provided. A cutting direction changing body 5 having the tip position of the side divider 12 as the center of the left-right rotation is provided, and the cutting direction changing body 5 is tilted left and right by a cutting direction changing lever 5a to cut the culm. A bean harvester characterized in that the tilting direction can be changed. 2. The bean harvester according to claim 1, wherein the rotation direction of the cutting blade 25 can be reversed when the cutting direction changing body 5 is switched.