JPH0232002Y2 - - Google Patents

Description

【考案の詳細な説明】 この考案は、耕耘機の耕耘軸に多数間隔的に取
付ける耕耘爪に関するものである。[Detailed Description of the Invention] This invention relates to a plurality of tilling claws that are attached at intervals to the tilling shaft of a tiller.

一般的に耕耘機は田畑等の土壌をじかに耕すう
え、近年は自走可能な車両体のもとで耕耘するた
め、回転軸に取付けられている耕耘爪の損傷度が
高まつている。殊に荒地を耕す場合は、土壌の硬
度が不均衡であり、かつ固形物も混入しているこ
とから、耕耘爪が偏摩耗したり、曲がりが生じた
りして損傷度が一段と高まることになる。 In general, tillers directly till the soil of fields, etc., and in recent years, tillers are operated using self-propelled vehicles, so the tiller claws attached to the rotating shaft are increasingly susceptible to damage. Particularly when plowing wasteland, the soil has an uneven hardness and is also contaminated with solid matter, which can cause uneven wear and bending of the tilling claws, further increasing the degree of damage. .

上記損傷度の高まりは、早期発見によつて一応
危険が回避できるが、この発見が遅れると、耕耘
機の自走力による回転軸の遠心力で、損傷部分か
ら先の爪面が飛ばされるという危険性がある。 The above-mentioned increased degree of damage can be avoided if detected early, but if this is detected late, the claw surface at the tip of the tiller will be blown away from the damaged area by the centrifugal force of the rotary shaft caused by the self-propelled power of the tiller. There is a risk.

しかし従来の耕耘爪は、上記損傷度の早期発見
に全く対策が施されていなかつた。従つて損傷度
が高まつた部分の爪面が、耕耘中に回転軸の遠心
力で飛ばされた場合は、耕耘機自体も二次損傷を
受けることがあつて、走行中の一時中止により、
耕耘作業の能率が低下したり、また最悪時には障
害事故を起すという問題点があつた。 However, the conventional tiller has no measures taken for early detection of the above-mentioned degree of damage. Therefore, if the pawl surface in the area where the degree of damage has increased is blown off by the centrifugal force of the rotating shaft during tilling, the tiller itself may also suffer secondary damage, and if the tiller is temporarily stopped while running,
There were problems in that the efficiency of tilling work decreased, and in the worst case, accidents could occur.

また従来の耕耘爪は、爪面の腐蝕を防止し、併
せて商品価値を維持することの限定により、原形
爪に表面距離を施したので、その多くは主に黒色
に着色されていることが多い。従つて雨期や水分
を含んだ土壌に対して耕耘作業を行つている場
合、爪面の黒色と、黒ずんだ土壌との識別が困難
であることから、視覚誤認により爪面に接触し
て、前述と同様に障害を受けるという問題点があ
つた。 Furthermore, in order to prevent corrosion of the nail surface and maintain commercial value, conventional tillage nails have a surface distance applied to the original nail, so many of them are mainly colored black. many. Therefore, when plowing during the rainy season or on moist soil, it is difficult to distinguish between the black color of the nail surface and the darkened soil, so the operator may come into contact with the nail surface due to visual misunderstanding and cause the above-mentioned damage. Similarly, there was the problem of being disabled.

この考案は上記の問題点を解決するためになさ
れたものであり、その目的とするところは、表面
全体に視認性が良い色彩の付帯層を設けることに
より、爪面における損傷度の早期発見が容易にな
つて、耕耘中における障害や二次損傷等が一掃さ
れ、これによつて耕耘作業の安全と能率向上を図
ることができる耕耘爪を提供することにある。 This idea was made to solve the above problems, and its purpose is to provide an easily visible colored layer over the entire surface of the nail, allowing for early detection of the degree of damage to the nail surface. It is an object of the present invention to provide a tilling claw that is easy to use, eliminates obstacles and secondary damage during tilling, and thereby improves the safety and efficiency of tilling work.

以下この考案の実施例を添付図面に基づいて説
明する。 Embodiments of this invention will be described below based on the accompanying drawings.

まず構成を説明すると、各図に示すように、金
属材をもつて基端に所定厚みの帯状面による柄部
２が形成され、この柄部２には帯状面を貫通する
ようにして取付孔３が設けられ、かつ上記柄部２
の先には、この位置の帯状面幅を徐々に拡大しな
がら、この柄部２の垂直面に対して直交する側の
一方向に円弧面による爪面４が形成され、この爪
面４の後半部は、前半部よりも前方側に円弧状の
もとで屈曲して、一括体の原形爪１に形成された
耕耘爪は、刃体部の刃縁側又は背縁側から見た投
影厚みの基部（柄部２）側と先端部との差が基部
側の投影厚みを下回つている。上記原形爪１の表
面全域には、この耕耘爪を図示しない耕耘機の回
転軸に多数間隔的に取付けた場合、その各耕耘爪
が耕耘機使用の環境周辺に対して顕著な色彩とな
る原色系の塗料、例えば耕耘機の周辺における土
壌や、この耕耘機と土壌の背景となる草木に比し
て明確に区分が可能となる色彩の塗料（一例とし
て赤色あるいはスカイブルー）が、上記原形爪１
の製作時に均一な厚みにより塗布されて、焼付け
等の加工手段によりこの原形爪１の表面全域に所
定厚みの付帯層５として一体的に設けられ、全体
として一括体の耕耘爪Ａに構成されている。 First, to explain the configuration, as shown in each figure, a handle part 2 is formed with a band-shaped surface of a predetermined thickness at the base end of a metal material, and a mounting hole is formed in this handle part 2 so as to pass through the band-shaped surface. 3 is provided, and the handle portion 2
At the tip of the handle 2, a claw surface 4 is formed by an arcuate surface in one direction perpendicular to the vertical surface of the handle 2 while gradually increasing the width of the band-like surface at this position. The rear part is bent in an arc forward direction than the front part, and the tilling claw formed in the original claw 1 of the lump body has a projected thickness of The difference between the base (handle 2) side and the tip is less than the projected thickness of the base. The entire surface of the original claw 1 is painted with a primary color that, when these tilling claws are mounted at intervals on the rotary shaft of a power cultivator (not shown), makes each of the tilling claws a prominent color relative to the surrounding environment in which the tiller is used. A type of paint, for example, a paint with a color that can be clearly distinguished from the soil around the tiller and the plants and trees that form the background of the tiller and the soil (for example, red or sky blue), is applied to the original nails. 1
It is applied to a uniform thickness during manufacture, and is integrally provided as an additional layer 5 of a predetermined thickness over the entire surface of the original nail 1 by processing means such as baking, and the entire tilling nail A is formed as a whole. There is.

上記の構成により耕耘爪Ａを、この耕耘爪Ａの
装備を必要とする図示しない耕耘機の回転軸に、
あらかじめ軸上に設置されている取付部材に対す
る前記取付孔３からのボルトの挿入とその締付け
により多数間隔に取付けて、この耕耘機を稼働し
た場合、各耕耘爪Ａの表面全域には、原色系の色
彩で、この耕耘機の周辺土壌やその土壌の背景と
なる草木と明確に区分できる焼付け塗装による付
帯層５が均一に設けられているため、各個毎の爪
面４における摩耗の度合が常に円滑迅速に確認で
きて、適正な摩耗時期における爪の交換が可能と
なる。 With the above configuration, the tilling claw A is attached to the rotating shaft of a tiller (not shown) that requires the installation of the tilling claw A.
When this tiller is installed at multiple intervals by inserting and tightening the bolts into the mounting holes 3 that have been installed on the shaft in advance, and this tiller is operated, the entire surface of each tiller claw A is colored in a primary color. Because the color of the attached layer 5 of baked paint that can be clearly distinguished from the surrounding soil of this tiller and the plants and trees that form the background of the soil is uniformly provided, the degree of wear on the claw surface 4 of each piece is always constant. It is possible to check smoothly and quickly, and to replace the pawl at the appropriate wear period.

また上記の耕耘爪Ａを長期間使用し、あるいは
荒地を耕したことで、爪面４が摩耗したり、曲が
りが生じたりして損傷を受けた場合は、その部分
の付帯層５が他の部分の付帯層５に比して、損傷
の度合に応じた程度差により、部分削層や部***
層として表現されるため、上記耕耘爪Ａの損傷度
を容易確実に早期発見できて、回転軸の遠心力に
より、損傷部分から先の爪面４が周囲に飛ばされ
るという危険性を未然に防止することができる。 In addition, if the above-mentioned tilling claws A are used for a long period of time or are plowed on rough land, if the claw surface 4 is worn out or bent and damaged, the attached layer 5 of that part will be damaged by other layers. Compared to the incidental layer 5 of the part, it is expressed as a partial scraping layer or a partial splitting layer depending on the degree of damage, so the degree of damage to the tilling claw A can be detected easily and early, and the Due to the centrifugal force of the shaft, it is possible to prevent the danger of the claw surface 4 at the tip of the damaged part being blown off to the surroundings.

さらに上記耕耘爪Ａの付帯層５は、原色系の色
彩で、この耕耘機の周辺土壌や、その土壌の背景
色と明確に区分できることから、回転時における
爪面の視認性が大幅に向上されて、視覚誤認等に
基因する接触事故の危険性を確実に防止すること
ができる。 Furthermore, the auxiliary layer 5 of the tilling claw A is colored in primary colors and can be clearly distinguished from the surrounding soil of this tiller and the background color of that soil, so the visibility of the claw surface during rotation is greatly improved. This makes it possible to reliably prevent the risk of contact accidents caused by visual misperception.

なお上記の実施例においては主に同一種類の原
形爪１に特定の色彩による付帯層５を設けるよう
にしたが、この考案の耕耘爪は上記の実施例に限
定することなく、例えば異種毎の原形爪に、色彩
別の付帯層をそれぞれ設けて複数種の耕耘爪を構
成することにより、色彩の識別により一目で耕耘
爪の種類が判断できて、多品種の管理が一層有利
に行えるという特徴が得られる。 In the above embodiment, the original claw 1 of the same type is provided with the additional layer 5 in a specific color, but the tilling claw of this invention is not limited to the above embodiment, By configuring multiple types of tiller claws by providing additional layers of different colors on the original claws, the type of tiller claws can be determined at a glance by identifying the color, making it even more advantageous to manage multiple varieties. is obtained.

以上に説明したことから理解されるようにこの
考案の構成によれば、爪に曲がりを生じれば表面
の層に局部的な摩耗を生じて曲がりの早期発見が
でき、爪の曲がりに起因する爪の折損により、折
損爪が飛ばされる危険が防止され、これによつて
耕耘機自体の二次損傷を防止することができる。
またこの種の事故の解消により、耕耘作業の能率
を高めることができる。さらに爪面の視認性が大
幅に向上されて、回転時の視覚誤認に基因する障
害事故が防止されることから、耕耘爪の安全性を
高めることができる等の効果がある。爪摩耗の確
認を爪全体で行なうことができ、偏摩耗の確認が
容易となり、作業管理上有利である。さらに、刃
体部は、刃縁によつて土壌を切削しながら、基部
付近から先端に亙り徐々に湾曲した刃体部で土壌
を直ちに案内する。この土壌の案内は刃体部が土
壌に打込まれた当初から徐々に行なわれるから、
極めて円滑である。しかも、刃体部の刃縁側又は
背縁側から見た投影厚みの基部側と先端側との差
が基部側の投影厚みを下回つているため、刃体部
全体の形状が極めて滑らかとなり、刃体部基部側
から先端側への土壌の案内が極めて円滑である。
従つて、切削された土壌は刃体部全体の湾曲作用
で十分な量が案内され、反転されると共に刃体部
の幅広な先端側で十分に放てきされ、反転性、放
てき性に優れている。また土壌の放てき性が良い
と、放てきされた土壌がロータリーカバー等に衝
突して砕土され易く、下層部の土壌は大きく、上
層部の土壌が小さいという理想的な土壌構成が得
られる。土壌への打込みに際しては、刃体部の先
端側における刃縁側の曲率が背縁の曲率よりも大
きく形成されているため、耕耘爪の回転に沿うよ
うな形状となり、しかも刃体部の刃縁側又は背縁
側から見た投影厚みの基部側と先端部との差が基
部側の投影厚みを下回つており刃体部先端で土壌
を叩くようなことがほとんどない。従つて、上記
刃体部の全体的な湾曲による土壌の案内も相俟つ
て、刃体部に対する土壌の抵抗が急に大きくなつ
たりするようなことがなく、極めて滑らかであ
り、刃体部の局部的な摩耗がなく、全体が僅かず
つ摩耗されるようになり、耐磨耗性に優れたもの
となる。このため、爪が正常であれば付帯層は全
体的に消失するものとなり、従来のナタ爪等に付
帯層を設ける場合に比較して、付帯層自体の偏摩
耗も少なく、ある程度使いこなした後でも曲がり
による付帯層の偏摩耗を容易に見分けることがで
きる。 As can be understood from the above explanation, according to the structure of this invention, if a bend occurs in the nail, local abrasion occurs on the surface layer, allowing early detection of the bend, and detecting the cause of the bend in the nail. The danger of the broken pawl being blown off due to breakage of the pawl is prevented, thereby preventing secondary damage to the tiller itself.
Also, by eliminating this type of accident, the efficiency of tilling work can be improved. Furthermore, the visibility of the claw surface is greatly improved, and accidents caused by visual misperception during rotation are prevented, so the safety of the tiller claws can be improved. Nail wear can be checked on the entire nail, making it easier to check for uneven wear, which is advantageous in terms of work management. Further, while cutting the soil with the blade edge, the blade portion immediately guides the soil with the blade portion that is gradually curved from near the base to the tip. This soil guidance is carried out gradually from the time the blade is driven into the soil.
It's extremely smooth. Moreover, since the difference in projected thickness between the base side and the tip side when viewed from the blade edge side or back edge side of the blade body is smaller than the projected thickness on the base side, the overall shape of the blade body is extremely smooth, and the blade Soil is guided extremely smoothly from the base of the body to the tip.
Therefore, a sufficient amount of the cut soil is guided and reversed by the curving action of the entire blade, and is also sufficiently released by the wide tip of the blade, resulting in excellent reversal and release properties. ing. In addition, when the soil is easily released, the released soil collides with the rotary cover and is easily crushed, resulting in an ideal soil composition in which the soil in the lower layer is large and the soil in the upper layer is small. When driving into the soil, the curvature of the blade edge side on the tip side of the blade body is larger than the curvature of the back edge, so the shape follows the rotation of the tilling claw, and the blade edge side of the blade body Alternatively, the difference in projected thickness between the base side and the tip viewed from the back edge side is less than the projected thickness on the base side, so that the tip of the blade body hardly hits the soil. Therefore, together with the soil guidance due to the overall curvature of the blade, the resistance of the soil to the blade does not suddenly increase, and the blade is extremely smooth. There is no local abrasion, and the entire surface is worn out little by little, resulting in excellent abrasion resistance. For this reason, if the nail is normal, the accessory layer will completely disappear, and compared to the case where an accessory layer is provided on a conventional hatchet nail, there is less uneven wear on the accessory layer itself, even after a certain amount of use. Uneven wear of the incidental layer due to bending can be easily identified.

刃体部先端で土壌を叩くようなことがほとんど
なく、刃体部の全体的な湾曲による土壌の案内と
相俟つて、刃体部に対する土壌の抵抗が急に大き
くなつたとするようなことがないため、負荷変動
が小さく、機体振動を抑制できると共に、土壌も
刃体部から圧迫されにくく、耕起土壌の通気性が
損なわれない。 The tip of the blade rarely hits the soil, and combined with the soil being guided by the overall curvature of the blade, the resistance of the soil against the blade suddenly increases. Therefore, load fluctuations are small, vibrations of the machine body can be suppressed, and the soil is not easily compressed by the blade portion, so that the permeability of the tilled soil is not impaired.

刃体部の形状が全体的に滑らかで、流れるよう
な形状をしているため、藁の引掛かりがなく巻付
きが抑制され、すき込み性が良い。 The overall shape of the blade body is smooth and flowing, so the straw does not get caught, suppresses wrapping, and has good plowing performance.

刃体部の全体的な湾曲で反転性、放てき性を向
上させるため、爪の高さはそれ程高くならず、ロ
ータリーに全数装置することも可能である。 Since the overall curvature of the blade improves reversibility and release performance, the height of the claws is not very high, and it is possible to install all the devices on a rotary.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案による耕耘爪を示す正面図、
第２図は第１図のＢ−Ｂ線における縦断面図、第
３図は同耕耘爪の背面図、第４図は同左側面図、
第５図は同右側面図、第６図は同平面図、第７図
は同底面図である。 １……原形爪、２……柄部、３……取付孔、４
……爪面、５……付帯層、Ａ……耕耘爪。 Figure 1 is a front view showing the tiller according to this invention.
Fig. 2 is a longitudinal sectional view taken along line B-B in Fig. 1, Fig. 3 is a rear view of the tiller, Fig. 4 is a left side view of the same,
FIG. 5 is a right side view of the same, FIG. 6 is a plan view of the same, and FIG. 7 is a bottom view of the same. 1...Original claw, 2...Handle, 3...Mounting hole, 4
...claw surface, 5...accessory layer, A...cultivating claw.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 耕耘軸に対する垂直面に対し刃体部を基部付近
から先端に亙り徐々に湾曲形成し、刃体部の刃縁
側又は背縁側から見た透影厚みの基部側と先端部
との差が基部側の投影厚みを下回つている耕耘爪
であつて、耕耘爪の表面略全体に視認性が良い色
彩の付帯層を設けたことを特徴とする耕耘爪。 The blade body is gradually curved from near the base to the tip with respect to a plane perpendicular to the tilling axis, and the difference in transparent thickness between the base side and the tip when viewed from the blade edge side or back edge side of the blade body is the base side. A tilling claw having a thickness less than the projected thickness of the tilling claw, characterized in that a highly visible color attached layer is provided on substantially the entire surface of the tilling claw.