JPH09154360A - Apparatus for cutting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for cutting, capable of reducing the vibration, improved in cutting properties and useful for harvests such as rice plant, barley or wheat or soybean by superposing fixed blades integrally formed or dividedly formed into plural parts on each movable blade. SOLUTION: This apparatus for cutting is obtained by dividing movable blades 14 and 14' divided into plural parts in the sliding direction, arranging the respective adjacent movable blades 14 and 14' at heights and positions so as to slide in mutually opposite directions without mutually colliding and superposing fixed blades 13 integrally formed or dividedly formed into plural parts on each movable blade. Furthermore, reaping blade transmitting members 22 are fixed to the side opposite to the fixed blades 13 at the base of the movable blades 14. Rollers provided at one end so as to enable only rotation are preferably fitted into engaging grooves 23 formed in the reaping blade transmission members 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device for crops such as rice, wheat, soybeans, rushes and the like, and all kinds of weeds and the like (hereinafter referred to as grain culm and the like).

[0002]

2. Description of the Related Art A conventionally known Japanese Unexamined Patent Publication No. 2-238812 discloses a cutting device in which an upper cutting blade is superposed on a lower cutting blade, and the lower cutting blade and the upper cutting blade are slid in opposite directions. Have been described.

[0003]

In the above-mentioned known example, since the upper cutting blade and the lower cutting blade slide with each other, one cutting blade comes into contact with one another and an unstable grain stalk or the like is cut by the other cutting blade. Therefore, there is a problem in cutting performance.

[0004]

The object of the present invention is to secure cutting performance and prevent vibration.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides an apparatus constructed by superposing movable blades slidably on a fixed blade 13,
The movable blade is divided into a plurality of pieces in the sliding direction, and the adjacent movable blades 14 and 14 'are slid in the opposite directions, and
The movable blades 1 are arranged at heights where they do not collide with each other.
Fixed blade 13 formed integrally with or divided into a plurality of 4 and 14 '
This is a cutting device in which is polymerized.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a combine harvesting device, in which a horizontal rear frame 3 is fixed in the left-right direction to the tip of a harvesting support frame 2 projecting forward from the machine body, and a mounting rod 4 projecting forward is provided on the horizontal rear frame 3. A horizontal front frame 5 in the left-right direction is provided at the tip of the mounting rod 4, and a plurality of weed rods 6 projecting forward at a predetermined interval are provided on the horizontally front frame 5, and each weed rod 6 is provided.
A grass body 7 is provided at the tip of the grass, a grain culm raising device 8 is provided behind the hay body 7, and a cutting blade 9 is provided behind the grain culm raising device 8. The cutting blade 9 detachably fixes the left and right cutting blade frames 12 to the left and right side weeding rods 6. The cutting blade frame 12 is provided with a fixed blade 13 whose position is fixed and a movable blade 14 which slides on the fixed blade 13. Movable blade 14 and fixed blade 13
Is formed long in the sliding direction of the movable blade 14, but at least the movable blade 14 is divided into a plurality in the sliding direction. That is, the fixed blade 13 and the movable blade 14 form a set, and these are vertically arranged and arranged side by side. In the embodiment, each of the fixed blade 13 and the movable blade 14 is divided into two sets, one fixed blade 13 is fixed to the upper surface of the cutting blade frame 12, and the movable blade 14 is fixed to the upper surface of the fixed blade 13.
And the other fixed blade 13 'is the cutting blade frame 1
2'is fixed on the lower surface of the fixed blade 13 '
Polymerize 4 '.

Denoted at 15 and 15 'are blades of the cutting blades which come into contact with the side surfaces of the fixed blades 13 and 13' of the movable blades 14 and 14 'to guide the sliding movement, and 16 and 16' are blades of the blades 15 and 15 '. Attachment members to be attached, 17 and 17 'are bolts for fixing the attachment members 16 and 16', 18 is a rear guide with which the rear surface of the movable blade 14 is in sliding contact, 19 is provided between the rear guide 18 and the cutting blade frame 12. It is an intermediate holding member. Cutting blade transmission members 22, 22 'are fixed to the side of the fixed blade 13 opposite to the base of the movable blade 14, and the engaging groove 2 formed in the cutting blade transmission members 22, 22'.
Rollers 25, 25 ', which are rotatably provided at one end of crank arms 24, 24', are fitted to 3, 23 '.
Further, the cutting blade frame 12 (12 ') is configured so that it can be attached even if the left and right sides are reversed, and even if one of the left and right sides becomes unusable, the cutting blade side movable blade 14 (14') By ensuring usage, work can continue.

However, in the embodiment shown in FIGS. 1 and 2, the movable blade 14 on either side of the cutting blade 9 in the traveling direction from the central portion thereof.
Are arranged below the fixed blade 13 and the movable blades 14 'on the other side are arranged above the fixed blade 13', respectively.
4, 14 'are configured to move in opposite directions.
Therefore, in FIG. 7, the movable blades 14 and 14 ′ are positioned on the same plane, and the central one blade portion 27 of one movable blade 14 is disposed.
Is formed in a horizontal state, the other blade portion 27 'of the other movable blade 14' is bent so as to overlap with the one blade portion 27 in a plan view. Reference numeral 28 denotes a guide inclined surface formed by inclining the end surfaces of the one blade portion 27 and the other blade portion 27 '. 8 and 9, the movable blades 14 and 14 'are arranged vertically, and the movable blades 14 and 14' are configured to move in opposite directions. In the plan view, the central one blade portion 27 and the other blade portion 27 'overlap. To configure. Further, FIG. 10 is configured such that at least the central portion overlaps with each other in plan view even when the one blade portion 27 and the other blade portion 27 'move in the directions away from each other. Further, in FIG. 11, only the central blade portions of the left and right movable blades 14 and 14 ′ have a width L1, the central blade portions of the left and right fixed blades 13 and 13 ′ have a width L2, and the other fixed blades 13 and 13 ′. Also, the blade portions of the movable blades 14 and 14 'are each set to have a width L3, and L1> L3 and L2 <L3 are configured so that at least when the movable blades 14 and 14' move in directions away from each other, at least Central movable blade 14,
It is configured such that parts of 14 'are polymerized with each other.

Further, FIG. 12 shows the movable blades 14 and 1 at the center.
The width of only the blade of 4'is formed smaller than other blades,
Even when polymerized, there is a gap 3 between the fixed blades 13 and 13 '.
0 is formed to prevent the movable blades 14 and 14 'from abutting on the other fixed blade 13' even if they move excessively. Further, in the embodiment of FIG. 13, the left and right movable blades 14 and 14 ′, which are located apart from each other at the lower position of the center weeding rod 6, are configured to form an approaching seam 31, and the tip is located in front of the seam 31. An intrusion prevention guide 32 having a substantially isosceles triangular shape in plan view, which narrows and widens toward the rear side, is provided. Intrusion prevention guide 32
Both sides of the rear end are positioned outside the cutting edges of the left and right movable blades 14 and 14 'to prevent grain culms from entering between them. Further, in the embodiment of FIG. 14, when the left and right movable blades 14, 14 'approach each other, a gap 33 for one blade portion is provided therebetween,
Although the left and right movable blades 14 and 14 'are prevented from colliding with each other, the gap 33 is formed on a side portion of the weed rod 6 to prevent a grain stem from entering the space 33 in the weed rod 6. Intrusion prevention guide 3
4 is provided. The intrusion prevention guide 34 is formed in a triangular shape inclined so as to be separated from the weed rod 6 toward the rear side, and guides the culm. Further, in the embodiment of FIGS. 15 and 16, the blade pressing / intrusion preventing member 35 projecting from each other is provided at each of the ends of the cutting blade pressings 15 and 15 ′ of the left and right movable blades 14 and 14 ′. The end portion of the intrusion prevention body 35 is always overlapped in plan view.

Further, in the embodiment of FIGS. 17 and 18, a finger-shaped guide guide 36 is provided in the central portion, and the guide guide 36 is formed with an insertion groove 37 having substantially the same thickness as the fixed blade and the movable blades 14 and 14 '. However, it prevents the movable blade from rising when sliding. Further, in the embodiment of FIG. 19, the mounting member 16 located at the connecting portion between the fixed blade 13 and the movable blade 14 is arranged at a position near the lower part of the weeding rod 6. In the figure, 40 is a threshing device, 41 is a grain culm feeding device, 42 is a stock takeover transfer device, 4
Reference numeral 3 is a tip transfer device.

[0011]

Next, the operation will be described. When the machine body is moved forward, it is weeded by the grass body 7, raised by the raising lug of the grain culm raising device 8, and cut by the cutting blade 9. In the cutting blade 9, a fixed blade 13 is fixed to a horizontal cutting blade frame 12 fixed to a fixed portion, a movable blade 14 is slidably slid on the fixed blade 13, and the movable blade 14 is moved in the moving direction. The movable blades 14 and 1 are divided into two or more even numbers and are configured to move in opposite directions.
On the side opposite to the fixed blade 13 of 4'and 13 ', the cutting blade retainer 15, 1
5'is provided, and the rollers 25, 25 'at one end of the crank arms 24, 24' are fitted into the engaging grooves 23, 23 'of the cutting blade transmission members 22, 22' provided at the bases of the movable blades 14, 14 '. Then, the movable blades 14 and 14 ′ are slid in the left and right directions by the rotation of the crank arms 24 and 24 ′ to cut.

In this case, since the movable blades 14 and 14 'are configured to move in opposite directions to each other, the mutual vibrations are canceled and the vibrations are reduced. Fixed blade 1
3 and movable blade 14 and fixed blade 13 'and movable blade 14'
The left and right can be the same, which can reduce the cost. Further, since the movable blades 14 and 14 'arranged vertically on the left and right are movable, the confluence of the blades can be easily configured. Since the cutting blade frame 12 is detachably attached to the fixed portion and the cutting blade frame 12 is mounted by reversing the left and right sides, even if one of the left and right sides becomes unusable. , By ensuring the use of the movable blade 14 on the cut side,
Continue work. In addition, since it is not necessary to check the left and right when mounting the cutting blade frame 12, there is no wrong assembly and the assembly work is facilitated.

In the embodiment of FIG. 7, the central one blade portion 27 of the left and right movable blades 14 and 14 'located on the same plane is formed in a horizontal state, while the other blade portion 27' is bent and overlapped. The movable blade 14 in the central portion,
The 14's approach each other and polymerize, preventing uncut residue. Therefore, the cutting performance in the central portion is stable.
Further, since the end faces of the movable blades 14 and 14 'that pass each other are formed on the guide inclined surface 28, respectively, they smoothly pass and overlap with each other, thereby preventing generation of mechanical lock and noise at the time of stacking. Also, in the embodiment of FIGS. 8 and 9, the movable blades 14 and 14 'are
Of the central one blade portion 27 and the other blade portion 2
Since the movable blades 14 and 14 'are configured to overlap with each other in a plan view, the movable blades 14 and 14' can be cut when they overlap with each other to prevent uncut portions. Further, since the movable blades 14 and 14 'are vertically displaced in the moving direction, it is not necessary to consider stroke adjustment and mud slippage of the movable blades 14 and 14'.

Further, in the embodiment of FIG. 10, the one-sided blade portion 27
On the other hand, even when the blade portions 27 'move away from each other, at least the central portion is configured to overlap in a plan view, which prevents cutting residue and stabilizes the cutting performance in the central portion. This makes it possible to prevent the grain stem from entering the rear of the movable blades 14 and 14 '. Further, when the ends of the one blade portion 27 and the other blade portion 27 'overlap with each other, they do not collide with each other, and damage and mechanical lock are prevented. That is, if the one blade portion 27 and the other blade portion 27 'are separated once and overlapped,
When the ends overlap, they may collide and break,
Prevent this. Further, in the embodiment of FIG. 11, only the blade portions of the central movable blades 14 and 14 ′ have a width L1, the blade portions of the central fixed blade 13 have a width L2, and the other fixed blades 13,
13 'and the movable blades 14, 14' have a width L3,
Since L1> L3, the movable blades 14 and 14 'slide by L3. Therefore, even when the movable blades 14 and 14' move in the directions away from each other, at least the central movable blade 1
Some of 4, 14 'polymerize with each other. Further, the overlapping portion can be minimized without reducing the sharpness of the overlapping portions of the movable blades 14 and 14 'in the center, and the weight of the movable blades 14 and 14' can be reduced.

Further, since the width L of the central fixed blade 13 is narrow because of the construction of L2 <L3, the movable blade 1
Even when the moving blades 14 and 14 'move toward each other, the movable blades 14 and 14' are prevented from colliding with the fixed blades 13 and 13 '. Further, in the embodiment of FIG. 12, the central blade portion is formed to have a width smaller than that of the other blade portions, and even when they are overlapped with each other, a gap 30 is formed between the other fixed blade 13 ′. Therefore, even if the movable blades 14, 14 'excessively move due to inertia or other reasons, the other fixed blade 13'
It is possible to prevent it from coming into contact with and to prevent damage. FIG.
In the third embodiment, the left and right movable blades 14 and 14 ', which are separated from each other at a position below the central weeding rod 6, approach each other, and the left and right movable blades 1 and 14' are approached.
4, 14 'seam 31 is located below the weeding rod 6, and the tip is narrow in front of the seam 31 and widens toward the rear side. Since 32 is provided, the grain culm is prevented from entering between the left and right movable blades 14 and 14 ', the sliding of the movable blades 14 and 14' is prevented from being adversely affected, and uncut residue is also prevented. To do.

Further, in the embodiment shown in FIG. 14, when the left and right movable blades 14, 14 'approach each other, an interval 33 for one blade portion is provided therebetween, so that the left and right movable blades 14, 14' are Prevent collision. Further, since the space 33 is formed on the side of the weed rod 6, and the weed rod 6 is provided with an intrusion prevention guide 34 for preventing the grain stem from entering the space 33, the grain rod is jammed (sandwiched). Prevent uncut areas. Further, in the embodiment of FIGS. 15 and 16, the cutting blade holder 1 of the left and right movable blades 14 and 14 'is provided.
5, 15 'are provided with blade presser / intrusion prevention bodies 35 projecting from each other at their respective ends, and the end portions of the blade presser / intrusion prevention body 35 are constantly polymerized in a plan view, so that the grain sticks (sandwiches), Prevent uncut areas. Also, in the embodiment of FIGS.
A finger-shaped guide guide 36 is provided in the central portion, and an insertion groove 37 having substantially the same thickness as the fixed blade 13 and the movable blade 14 is formed in the guide guide 36.
Since 14 ′ slides, the movable blades 14 and 14 ′ are sandwiched between the guide guide 36 and the fixed blade 13, and the movable blades 14 and 14 ′ slide.
Prevent the 14 'from rising. Further, in the embodiment of FIG. 19, since the mounting member 16 located at the connecting portion between the fixed blade 13 and the movable blades 14 and 14 ′ is arranged in the vicinity of the lower part of the weed rod 6, the weed rod 6 is provided. Since the grain culm does not come much below, the cutting performance is not deteriorated even when the rivet is about to come off. In addition, the fixed blade 13 and the movable blade 14,
14 'can use the same thing on the left and right, and the cost can be reduced.

[0017]

According to the present invention, in the device constituted by superposing movable blades slidably on the fixed blades 13, the movable blades are divided into a plurality of pieces in the sliding direction, and the adjacent movable blades 14 and 14 'are mutually separated. Since it is a cutting device which slides in opposite directions and is arranged at a height position where it does not collide with each other, and the movable blades 14 and 14 'are superposed with a fixed blade 13 formed integrally or divided into a plurality of pieces. , When adjacent movable blades 14 and 14 'slide, they can cancel each other's reaction force to reduce vibration, and if the movable blades are divided into left and right parts,
Even if one of the left and right sides becomes unusable, it is possible to continue the work by ensuring the use of the other movable blade. Also, because it is placed at a height position that does not collide,
Even if they are slid in the opposite directions, there is an effect that the stroke adjustment of the movable blade and the sludge removal do not have to be taken into consideration. In addition, although an Example demonstrated the example of a combine, it is not limited to an Example.

[Brief description of the drawings]

FIG. 1 is a plan view of a reaping unit.

FIG. 2 is a plan view of a cutting blade.

FIG. 3 is a plan view of the main part.

FIG. 4 is a side view of the same.

FIG. 5 is a rear view of the same.

FIG. 6 is a front view of the same.

FIG. 7 is a plan view and a front view of another embodiment.

FIG. 8 is a plan view of another embodiment.

9 is a front view of the working state of the embodiment of FIG.

FIG. 10 is a front view of another embodiment and a front view of a working state.

FIG. 11 is a front view of another embodiment and a front view of a working state.

FIG. 12 is a plan view and an operation state front view of another embodiment.

FIG. 13 is a plan view of another embodiment.

FIG. 14 is a plan view of another embodiment.

FIG. 15 is a plan view of another embodiment.

16 is a front view of the embodiment of FIG.

FIG. 17 is a plan view of another embodiment.

FIG. 18 is a side view of the main part of FIG.

FIG. 19 is a plan view of another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mowing device, 2 ... Mowing support frame, 3 ... Horizontal rear frame, 4 ... Mounting rod, 5 ... Horizontal front frame, 6 ... Dividing rod, 7 ...
Weeding body, 8 ... Grain culm raising device, 9 ... Cutting blade, 12 ... Cutting blade frame, 13, 13 '... Fixed blade, 14, 14' ... Movable blade,
15, 15 '... Cutting blade presser, 16 ... Mounting member, 17 ... Bolt, 18 ... Rear guide, 19 ... Intermediate holding member, 22 ... Cutting blade transmission member, 23 ... Engaging groove, 24 ... Crank arm, 2
5 ... Roller, 27 ... (one side) blade part, 27 '... Other side blade part, 28 ... Guide inclined surface, 30 ... Interval, 31 ... Seam, 3
2 ... Intrusion prevention guide, 33 ... Space, 34 ... Intrusion prevention guide, 35 ... Blade presser / intrusion prevention body, 36 ... Guide guide, 3
7 ... Insertion groove.

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[Procedure amendment]

[Submission date] January 26, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazushi Ohara 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture, Engineering Department, Iseki Agricultural Machinery Co., Ltd. In-house (72) Inventor Kazuharu Kiyasu, No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A device comprising a fixed blade 13 and a movable blade slidably superposed on each other, wherein the movable blade is divided into a plurality of pieces in the sliding direction, and adjacent movable blades 14 and 14 'are in mutually opposite directions. A cutting device in which fixed blades 13 which are slid to each other and arranged at a height position where they do not collide with each other, and fixed blades 13 which are formed integrally with or divided into a plurality of movable blades 14 and 14 'are overlapped.