JPH0545152Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to the structure of a cutting blade cover for a bean harvester for harvesting soybeans, etc.

(b) Prior Art The reaping section of a conventional bean harvester is surrounded by a reaping frame, side dividers, etc. to prevent the operator from touching the cutting blades. For example, this technique is disclosed in Japanese Utility Model Application Publication No. 62-104639.

(c) Problems that the invention aims to solve However, simply installing a frame or rod around the cutting blade will cause branches and dirt thrown away by the rotation of the cutting blade to be scattered around, which is very dangerous. You will have to work in this state. In particular, in a bean harvester where the center divider can be rotated left and right to release the harvested grain culm on both sides, it is necessary to have both sides open.
Since the grain culm could not be released, the cutting blade on the opposite side to the release direction could not be sufficiently covered.

(d) Means for solving the problem The present invention is constructed as follows so that even if the bean harvester is capable of discharging on both sides, the cutting blade section on the side opposite to the discharging side can be covered.

Dividers 20L and 20R protruding from the front of the aircraft
In a bean harvester in which the center divider 26 disposed between the left and right sides can be switched, the base frame 26 to which the center divider 26 is attached
b and hinges 16, 17 on both sides of the front of the traveling frame 1,
18. When the cutting blade cover 29 is pivotally connected via the pivot 19 and the center divider 26 is switched to the right side, the cutting blade cover 29 covers the right side circumference of the cutting blade 14 and exposes the left side circumference. However, when the center divider 26 is switched to the left side, the cutting blade cover 2
9 covers the left side circumference of the cutting blade 14 and exposes the right side circumference.

(e) Embodiment The purpose of the present invention is as described above, and the structure of the present invention will be explained based on the structure of the embodiment shown in the attached drawings.

Figure 1 is an overall perspective view of the bean harvester. Second
The figure is a partial sectional view of the bottom view of the reaping/traveling drive unit. FIG. 3 is a side view and partially sectional view of the reaping drive unit. FIG. 4 is a perspective view when the grain culm is released to the left. FIG. 5 is a perspective view when the grain culm is released to the right side. Figure 6 is also a plan view. FIG. 7 is a plan view when the grain culm is released to the left. FIG. 8 is a perspective view of the cutting blade cover attachment part.

To explain the overall configuration with reference to FIG. 1, an engine 2 is mounted on a running frame 1, and the base of a handle 3 is pivotally supported at the rear end of the running frame 1 to protrude rearward and upward. By tightening the fixed handle 15, it can be fixed at any angle. Also, running frame 1
A traveling drive shaft 10 is mounted on the lower part, and the traveling drive shaft 1
0, and divider arms 12L and 12R are protruded from both sides of the front of the running frame 1.
Dividers 20L and 20R are provided at the tips thereof, a cutting blade 14 is provided above between the divider arms 12L and 12R, and a center divider 26 is provided above between the dividers 20L and 20R. A switching lever 2 is provided behind the traveling frame 1 to switch the rotational direction of the cutting blade 14 and the left-right direction of the center divider 26.
5 stands out.

An accelerator lever 6 and a reaping clutch lever 5 are provided on one side of the rear upper end of the handle 3, and a traveling clutch lever consisting of an engagement lever 4a and a release lever 4b is provided on the other side of the handle 3.

Clutch wires 48 and 21 are connected to the reaping clutch lever 5 and the traveling clutch lever 4, respectively, and as shown in FIG. 2, the other end of the clutch wire 21 is connected to an arm 33 via a spring 31. A tension pulley is pivotally supported at the other end of the arm 33, and a belt 38 for driving the running wheels 9 is placed in a position where it can be tensioned.
This makes it possible to connect with other people.

Power is transmitted from the engine 2 to the belt 38 via a reduction gear box 34, the input side to the reduction gear box 34 is connected to the output shaft of the engine 2, and a drive pulley 39 is fixedly installed on the output shaft. A belt 42 is wound between the drive pulley 39 and a double pulley 41 pivoted on a shaft 40 protruding downward from the back surface of the running frame 1, and the belt 42 is wound between the other belt groove of the double pulley 41 and the A belt 45 is wound around a double pulley 44 pivotally supported on a shaft 43 fixed to the front frame 1a. 30 is a tension pulley for the belt 42, which is always biased by a torsion spring.

A tension pulley 46 is brought into contact with the belt 45, and the clutch wire 48 is connected to an arm 47 that pivotally supports the tension pulley 46, and the power can be disconnected or connected by rotating the reaping clutch lever 5. It is said that 69 is a pivot shaft of the arm 47.

A double pulley 50 is arranged in parallel on the side of the double pulley 44, and the double pulleys 44, 50
has two belt grooves and friction cylindrical parts 44a, 50a, a belt 49 is wound between the double pulleys 44, 50, and the other belt groove of the double pulley 50 has a drive pulley 55, which will be described later. A belt 56 is wound between them.

As shown in FIG. 3, the lower end of the pivot shaft 51 of the double pulley 50 is erected at the rear end of a polygonal tension shaft 52, and the other side of the tension shaft 52 is fitted into a fitting pipe 53. A spring 57 is installed inside the fitting pipe 53 and biases the tension shaft 52 rearward to tension the belt 56.

The front end of the fitting pipe 53 is connected to the pivot portion 53.
As a, a support cylinder 2 at the tip of a support frame 24 protruding forward from the front frame 1a of the traveling frame 1 is shown.
The pivot shaft 51 is fitted onto the upper part of the pivot shaft 4a so that the pivot shaft 51 can be moved left and right.

A cutting blade drive shaft 54 is pivotally supported on the support tube 24a, the cutting blade 14 is fixed to the lower end of the cutting blade drive shaft 54, a driving pulley 55 is fixed to the upper end, and the driving pulley 55 and the double A belt 56 is wound around the pulley 50.

On the other hand, the upper end of the pivot shaft 51 is connected to the upper moving rod 6.
0, the protrusion at the rear of the upper moving rod 60 is engaged with the elongated hole of the lower moving rod 62, and the other end of the lower moving rod 62 is inserted into the middle part of the connecting rod 63. has been done. 61 is a pivot shaft of the upper moving rod 60, 71 is a pivot shaft of the lower moving rod 62, 64,
65 is a spring that biases the insertion portion of the lower moving rod 62 from both sides.

The rear end of the connecting rod 63 is pivotally supported by an arm 25a provided at the tip of the switching lever 25.
The front end of the lever 5 is pivotally supported by a pin 27, and the middle part of the lever 5 is inserted into a lever guide hole 1c opened in the rear frame 1b of the running frame 1, so that it can be locked at both ends.

The front end of the connecting rod 63 is connected to the rotating plate 26.
The rotating plate 26a is fixed to the rear end of the base frame 26b, and the rear end of the base frame 26b has a pin 28 erected on the support body 24b that protrudes from the front end of the support cylinder 24a of the support frame 24.
The base frame 26b is pivotably supported by the base frame 26b so that the base frame 26b can rotate left and right.

A center divider 26 made of a wedge-shaped cover is fixed to the upper front end of the base frame 26b.
The V-shaped upper side divider 23 is fixed on the center divider 26, and the cutting blade cover 29 of the present invention is arranged on the cutting blade 14 from the rear of the center divider 26 to the front end of the traveling frame 1. be.

That is, as shown in FIGS. 3 to 8, the cutting blade cover 29 is attached to the front side surface of the base frame 26b via hinges 16L, 16R.
The front end of R is pivotally connected, and the cutting blade covers 29L, 29R
The rear end has hinges 17L, 17R, 18L, 1 on both ends.
The running frame 1 is connected via a pivot 19 having 8R.
It is pivoted on both sides of the front. Then, the cutting blade cover 2
Lower side dividers 22L, 2 on the sides of 9L, 29R
2R is attached, and as shown in FIG. 1, the belt cover 11 covers from the top of the drive pulley 55 to the front end of the running frame 1.

(f) Effect of the invention When the configuration is set to working condition, when the switching lever 25 is rotated in the direction of arrow A,
The arm 25a is rotated and the connecting rod 63 is pushed, the lower moving rod 62 and the upper moving rod 60 fitted in the middle of the connecting rod 63 are rotated, and the double pulley 50 is removed from the double pulley 44. The double pulley 50 is rotated to the right in the same direction as the double pulley 44 as the belt 49 is tensioned. As shown in FIGS. 5 and 6, the drive pulley 55 is rotated by the double pulley 50 via the belt 56, and the cutting blade 14 fixed to the lower end of the drive shaft 54 is driven in the same direction. It is.

At the same time, the rotating plate 26a pivotally connected to the front end of the connecting rod 63 is rotated, the base frame 26b is rotated, and the cutting blade cover 29L is moved around the hinge 1.
The rear end rotates around 6L, 17L, and 18L together with the pivot 19L to cover the upper left side of the cutting blade 14, and the cutting blade cover 29R is pulled and centered around the hinges 16R, 17R, and 18R. It rotates together with the pivot 19R so as to expose the circumferential portion of the cutting blade 14.

Therefore, the grain culm is guided by the center divider 26 and the divider 20R to the reaping space, and is further reaped by the cutting blade 14 to the lower side divider 2.
2. It is guided by the upper side divider 23 and released to the right in the direction of travel.

Conversely, when the switching lever 25 is rotated in the direction B,
The connecting rod 63 is pulled and the lower moving rod 6
2. The upper moving rod 61 is rotated in the direction in which the double pulley 44 and the double pulley 50 are in contact with each other, and the belt 49 is loosened and the friction cylindrical portion 44a,
50a is brought into contact, the double pulley 50 is rotated in the opposite direction, and the cutting blade is also rotated in the opposite direction.

At the same time, the center divider 26 and the cutting blade covers 29L and 29R are rotated as shown in FIGS. 4 and 7, so that the upper right side of the cutting blade 14 is covered and the upper left side is exposed. 2
Guided by 0L, the cut grain culms are discharged to the left in the direction of travel.

(g) Effects of the invention With the above configuration, the invention provides the following effects.

First, when the center divider is switched, the cutting blade cover exposes the top of the cutting blade on the discharge direction side and covers the opposite side, so branches, soil, etc. that fly away during mowing are only scattered on the discharge side, which improves safety. We were able to make improvements.

Second, since the cutting blade cover also moves left and right in conjunction with switching the center divider left and right, there is no need to replace the cutting blade cover, making operation easier.

[Brief explanation of the drawing]

Figure 1 is an overall perspective view of the bean harvester. Second
The figure is a partial sectional view of the bottom view of the reaping/traveling drive unit. FIG. 3 is a side view and partially sectional view of the reaping drive unit. FIG. 4 is a perspective view when the grain culm is released to the left. FIG. 5 is a perspective view when the grain culm is released to the right side. Figure 6 is also a plan view. FIG. 7 is a plan view when the grain culm is released to the left. FIG. 8 is a perspective view of the cutting blade cover attachment part. 1... Traveling frame, 14... Cutting blade, 16,1
7, 18...Hinge, 19...Pivot, 20L,
20R...divider, 26...center divider, 26b...base frame, 29...mower blade cover.

Claims (1)

[Scope of utility model registration request] Dividers 20L and 20R protruding from the front of the aircraft
In a bean harvester in which a center divider 26 disposed between the left and right sides can be switched, a base frame 26 to which the center divider 26 is attached;
b and hinges 16, 17 on both sides of the front of the traveling frame 1,
18. When the cutting blade cover 29 is pivotally connected via the pivot 19 and the center divider 26 is switched to the right side, the cutting blade cover 29 covers the right side circumference of the cutting blade 14 and exposes the left side circumference. However, when the center divider 26 is switched to the left side, the cutting blade cover 2
9 covers the left side circumference of the cutting blade 14 and exposes the right side circumference.