JPS624086B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a binder.

[Conventional technology]

The binder is equipped with a reaping device mounted on a pair of left and right sleds, and a drive machine with wheels connected behind it, and the operator starts the engine installed in the drive machine to rotate the wheels. This allows the machine to move on its own, and while correcting the running direction by grasping the handle at the rear end of the machine, the operator walks to follow the machine and performs the reaping work. As the machine runs, the grain culms in the field are raked by the weeding body at the front end of the machine, and after the ears are pulled up by a device, the root part is cut off by the cutting blade. The harvested grain culms are bound by a binding device and discharged outside the machine.

[Problem that the invention seeks to solve]

Conventional binders that perform such reaping work have cutting blades shaped like wide clippers, so they do not have the ability to follow grain culm rows.
If the machine was allowed to run on its own and then let go, the machine would dislodge from the grain culm rows and leave uncut residue, so the operator had to constantly hold the handle and adjust the running direction. This is extremely labor-intensive for workers, and there has been a demand for some time for the development of a binder that can be operated by hand.

The present invention was made in response to such demands, and an object of the present invention is to provide a binder that has good followability to grain culm rows in the field.

[Means for solving problems]

In order to achieve the above-mentioned objects, the present invention provides a rotary cutting blade consisting of a rotary blade having a plurality of blade bodies and a fixed blade fixed to the machine body, and a wheel behind the blade that is approximately the width of the machine. A pair of sleds are arranged symmetrically on both sides of the rotary cutting blade, and a weeding body is provided in front of the rotary cutting blade at approximately the same interval as the sled. A grain culm guide is provided between the rotary cutting blade.

[Effect]

When the wheels are driven and the machine moves forward with the wheels and sleds controlling the direction of movement, the rows of grain culms in the field are swept between the right and left sleds, and the rows of grain culms are moved between the left and right sleds. The guide guides the mower to the cutting area of the rotary mower blade, where the mower is harvested. When the machine moves forward, the path is almost regulated by the sled and wheels, and the V-shaped cutting blade is formed by the left and right weeding bodies, which are sufficiently wider than the rows of grain culms, and the rotary cutting blade. The machine moves forward with the grain culm in the aisle, so even if you let go of it, the machine will move straight forward.

〔Example〕

FIG. 1 is a plan view of a binder according to the present invention, and FIG.
The figure is a plan view of the vicinity of the cutting blade, and the binder 1 is composed of a reaper 2 and a drive unit 3 detachably connected to the rear end thereof by a connection mechanism. The drive unit 3 is equipped with an engine 4, and its rotation is transmitted to the wheels 6 via a transmission in a gearbox 5.
is branched from the input shaft and transmitted to the reaper 2.
Further, on the side of the engine 4, an operation box 7 for operating a main clutch for driving is attached to a handle 8 formed in a U-shape and projecting rearward. Furthermore, a string case 9 is provided in front of the engine 4 to store a binding string. The main parts of the driving machine 3 are formed to be substantially symmetrical left and right with respect to the center line of the width of the machine shown by a chain line 10 in the figure, and the wheels 6 are disposed on the center line of the width of the machine.

On the other hand, in the reaper 2, a pair of left and right sleds 11 and 12 that run in contact with the ground are arranged in symmetrical positions with respect to the machine width center line 10, and the main parts of the reaper 2 are as follows: It is mounted on these sleds 11 and 12. That is, at the front end of the reaper 2,
Grass cutting bodies 13 and 14 for separating grain culms in a field are provided supported by grass cutting rods (not shown) supported along the ground. And the branch 13,
The spacing between the sleds 14 is approximately the same as the spacing between the sleds 11 and 12, and the sleds 14 are disposed at symmetrical positions with respect to the machine width centerline 10. Furthermore, these left and right branches 13,
Behind the chain case 14, a lifting device 15 consisting of a chain case 15a and a lifting chain stretched inside the chain case 15a is provided in an upright manner so as to tilt backward as it goes upward. A large number of lugs 15b are arranged at regular intervals on the lifting chain of this lifting device 15, and as the lifting chain runs, the tips of the grain culms 16 are held and moved around as if rising. The grain culm 16 stands up vertically as the machine advances. In addition, at a lower level in the conveyance path of the grain culm 16 that is being transported while being pulled up, a rod-shaped grain culm guide 17 that guides the root part of the grain culm 16 has its base end fixed to the tip of the weeding body 13 and rests on the ground. They are supported horizontally in close proximity. The pulling device 15 and the grain culm guide 17 are connected to the side edge of the chain case 15a and the grain culm guide 17 in a plan view.
A grain conveying path A formed between the two is positioned so as to be substantially on the centerline 10 of the machine body.

Furthermore, behind the tip of the grain culm guide 17, that is, at the end of the grain culm conveyance path A, the engine 4 is provided.
The cutting blade shaft 1 is driven by a cutting input shaft (not shown) and a transmission shaft (not shown), and rotates clockwise in the drawing.
8 is provided suspended from an upper gearbox (not shown). And this cutting blade shaft 18
A rotary cutting blade, generally designated by the reference numeral 19, is attached to the lower end of the cutting blade.

FIG. 3 is a plan view and a side view of the cutting blade 19. The cutting blade 19 is a disk-shaped disk having an upwardly bulging portion in the center and rotates together with the cutting blade shaft 18. 20, and on the outer periphery of this disk 20 are eight blades 2 formed in an equilateral triangle shape.
1 is installed. And this blade 21-3
A blade portion that becomes sharper toward the edge is formed on the side, and a saw blade formed by forging from the surface is provided on the edge. Also, the blade body 21
is attached with its two sides protruding from the peripheral surface of the disk 20 in the radial direction, and the inclination angle is set so that the protruding side on the preceding side with respect to the rotation direction protrudes longer than the other protruding side. has been done.

On the left side of the cutting blade 19 when viewed in the grain culm conveying direction, a guide support plate 22 having an arcuate edge 22a concentric with the disk 20 is arranged so that the edge 22a is close to the orbit of the tip of the blade 21. It is supported on the fuselage side. Furthermore, a receiving blade 23 formed in a substantially triangular plate shape is screwed onto the upper surface of this guide support plate 22 with its lower surface slidingly in contact with the upper surface of the blade body 21. A blade portion that becomes sharper toward the edge is formed at the side end, and this blade portion is in contact with the saw blade of the blade body 21 that rotates toward the tip of the grain culm guide 17. It is formed like a letter. Moreover, above the cutting blade 19,
A star wheel 24 having three scraping pieces projecting in the radial direction is pivotally attached to the cutting blade shaft 18.

The rotary cutting blade 19 configured in this manner is arranged such that its axis is such that the V-shaped cutting portion formed by the cutting blade 21 and the receiving blade 23 is located approximately on the machine width center line 10. The core, that is, the axis of the cutting blade shaft 18 is arranged to be shifted laterally from the machine width center line 10, which is an intermediate position between the sleds 11 and 12.

A grain culm conveyance path A is provided on the side of the cutting blade 19.
A binding passage B is formed perpendicular to the binding passage B, and a platform 25 having a U-shape in plan view is formed in this binding passage B.
An arc-shaped knotter base 26 is attached to the knotter base 26, and a knotter bill that is driven by a timing gear 27 to perform tying and a string holder (not shown) are attached to the knotter base 26. Further, in the binding passage B, there are provided a needle 28 for hooking the binding string to the string holder, and a T protrusion 29 that rotates and starts the binding operation when the grain culm reaches a predetermined amount. Furthermore, a discharge arm 30 is provided coaxially with the timing gear 27 for discharging the bundled grain culm bundles to the outside of the machine.

The operation of the binder 1 configured as above will be explained. The operator starts the engine 4, operates the lever of the control box 7, moves the machine platform, and walks behind the machine platform. As the machine progresses, the grain culms 16 in the field are separated from the cuttings 13 and 14.
After being pushed aside by a pulling device 15, the tip is pulled up while being conveyed. As the machine advances further, the root of the grain culm 16 is cut into the cutting blade 1.
9, and the root portion is cut between the cutting blade 19 and the receiving blade 23. The harvested grain culm 16 is tied to the bundling passage B.
When the grain culm reaches a predetermined amount, T-protrusion 2
9 rotates slightly to connect the clutch, and the needle 28 and timing gear 27 rotate to complete the binding. The tied grain culm bundle is discharged out of the machine by the discharge arm 30.

In the binder 1 that operates as described above,
The cutting blade 19 is a rotary cutting blade consisting of a disc 20 and a blade body 21 disposed on the outer circumference thereof, and the grain culm cutting area by the blade body 21 and the receiving blade 23 of this cutting blade 19 is aligned with the center line of the width of the machine. 10 and the sled 11,
12 is arranged at a position symmetrical to the width center line 10 of the machine, and the branching body 1 is arranged at approximately the same interval as the sleds 11 and 12.
3 and 14, the following ability of the machine to the rows of grain culms in the field is extremely good. That is,
When the machine is moved forward, the wheels 6 and the left and right sleds 11,
12, it moves forward with its direction of movement being regulated by the sleds 11 and 12, while the left and right weeding bodies 13 and 14 plow through the grain culms on one side or the left and right, and move the central row of grain culms to be harvested between the sleds 11 and 12. As a result, the tip of the grain culm is pulled up, and the root part of the grain culm is conveyed along the grain culm guide 17, that is, the machine width centerline 10. Since the cutting part of the cutting blade 19 is also located on the center line of the machine body, the grain culm is correctly guided to this cutting part and cut. After this, the direction of movement of the machine is regulated by guiding the grain culm rows between the grass cutting bodies 13 and 14 at the front end, and the direction of movement of the machine is regulated again at the cutting position by the cutting blade 19. Ru. In other words, unlike conventional clipper-type cutting blades in which the cutting position is not restricted in the width direction of the machine base, the direction of movement of the machine base is restricted at two locations, front and back of the grass dividers 13 and 14 and the cutting blade 19. Not only when the grain culm row is straight, but also when the grain culm row is meandering, the machine correctly follows the grain culm row and advances, and does not come off the grain culm row. Therefore, hands-off operation becomes possible.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in a binder, a rotary cutting blade consisting of a rotary blade having a plurality of blade bodies and a fixed blade fixed to the machine body side, and a wheel behind the blade are used. It is placed on the center line of the machine width, and a pair of sleds are placed symmetrically on both sides of the rotary cutting blade, and in front of the rotating cutting blade there is a weeding body with approximately the same spacing as the sled. By providing a grain guide between the grass and the rotary cutting blade, when the machine moves forward, the path is almost regulated by the sled and wheels, and it is further spaced far enough apart than the row of grain stalks. V formed by wide left and right grass divisions and rotating cutting blades
The grain culm is positioned in a letter-shaped path and the machine moves forward, and the direction of movement of the machine is regulated at two places, the front and back of the cutting body and the rotary cutting blade, so the machine's ability to follow the row of grain culms is extremely high. This eliminates the need for the operator to correct the direction of movement of the machine, allowing long-term hands-free operation, which significantly reduces the burden on the operator.

[Brief explanation of the drawing]

1 to 3 show a binder according to the present invention, FIG. 1 is a plan view thereof, FIG. 2 is a plan view of the vicinity of the cutting blade, and FIG. 3 is a plan view and a side view of the cutting blade. 1... Binder, 6... Wheel, 10... Width center line, 11, 12... Sled, 13, 14... Grass splitting body, 17... Grain culm guide, 19... Cutting blade, 20...
...disc, 21...blade body, 23...blade.

Claims (1)

[Claims] 1. A rotary cutting blade consisting of a rotary blade consisting of a rotating disk and a plurality of blade bodies attached to its outer periphery, and a fixed blade located on the orbit of the blade, is placed on the center line of the width of the machine. The cutting parts of the rotary and fixed blades are arranged approximately at the same position, and the wheels located at the rear of the rotary cutting blade are also arranged approximately on the machine width center line, and the pair of sleds are arranged approximately on the machine width center line. The rotary cutting blades are provided in symmetrical positions with respect to the center line of the machine width, and in front of the rotary cutting blades, a pair of weeding bodies are provided at a distance symmetrical to the center line of the width of the machine. 1. A binder characterized in that a grain culm guide is provided between the weed splitting body and the cutting portion of the rotary cutting blade.