JP3443328B2 - Tillage claw - Google Patents

Tillage claw

Info

Publication number
JP3443328B2
JP3443328B2 JP20340398A JP20340398A JP3443328B2 JP 3443328 B2 JP3443328 B2 JP 3443328B2 JP 20340398 A JP20340398 A JP 20340398A JP 20340398 A JP20340398 A JP 20340398A JP 3443328 B2 JP3443328 B2 JP 3443328B2
Authority
JP
Japan
Prior art keywords
edge
tip
blade portion
cross
blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP20340398A
Other languages
Japanese (ja)
Other versions
JP2000032802A (en
Inventor
健志 小橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KOBASHI INDUSTRIES CO., LTD.
Original Assignee
KOBASHI INDUSTRIES CO., LTD.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KOBASHI INDUSTRIES CO., LTD. filed Critical KOBASHI INDUSTRIES CO., LTD.
Priority to JP20340398A priority Critical patent/JP3443328B2/en
Priority to DE69828497T priority patent/DE69828497D1/en
Priority to EP19980308806 priority patent/EP0972436B1/en
Publication of JP2000032802A publication Critical patent/JP2000032802A/en
Application granted granted Critical
Publication of JP3443328B2 publication Critical patent/JP3443328B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【発明の詳細な説明】 【0001】 【産業上の利用分野】本発明は、耕耘爪としての基本性
能が良くて、耐久性があり、軽量で安価に提供できる耕
耘爪に関する。 【0002】 【従来の技術】従来、水平な回転軸の軸周に放射方向に
取付けられ、取付け基部から連続的に形成される縦刃部
と、縦刃部の先端側で一側に弯曲形成される横刃部とを
備える耕耘爪が一般的に知られている。そして、その長
さ方向の断面厚さ(肉厚)は、取付け基部が最も厚く、
縦刃部から横刃部の先端部にかけてほぼ同じ厚さになっ
ている。また、その幅方向の断面厚さ(肉厚)も、取付
け基部が最も厚く、縦刃部から横刃部の先端部にかけて
ほぼ同じ厚さになっている。 【0003】このような耕耘爪により耕耘作業を行い、
耕耘爪の摩耗が進んで回転半径方向の摩耗が限界に達す
ると新しい耕耘爪と交換することになるが、摩耗限界に
達した耕耘爪を子細に見てみると、刃幅方向の肉厚が残
りすぎており、廃棄する際の損失が大きくなっている。 【0004】一方、耕耘爪に求められる事項としては、
砕土性、反転性、放擲性、すきこみ性、均平性、整地性
などの基本性能の他、耐久性、対衝撃性、低馬力、低振
動、非だきこみ性、非からみつき性、低価格などが要求
されている。 【0005】 【発明が解決しようとする課題】そこで本発明は、上記
のような従来の問題点(摩耗限界に達した耕耘爪の刃幅
方向の肉厚の残りすぎ)や、耕耘爪に求められる各事項
を可能な限り具現化することを目的になされたものであ
る。 【0006】 【課題を解決するための手段】上記の目的を達成するた
めに本発明は、水平な回転軸の軸周に放射方向に向け
付けられ、取付け基部から連続的に形成される縦刃部
と、縦刃部の先端側で一側に弯曲形成される横刃部
とを備える耕耘爪において、耕耘爪の長さ方向の
断面厚さを、取付け基部が最も厚く、縦刃部から横
刃部の先端にかけて次第に薄くなるように形成し、該
縦刃部から横刃部の先端まで横刃部の弯曲側に片
刃の刃縁を形成すると共に横刃部4は、峯縁6の先
端部分がわずかに外側に弯曲しており、刃縁5の点Pを
通る曲げ曲線Rに沿う断面形状が緩やかなS字をなすよ
うに形成されており、その断面厚さは、刃縁5の基部が
最も厚く、峯縁6に向けて次第に薄くなるように形成さ
れていることを特徴としている。 【0007】 【作用】上記の構成により本発明の耕耘爪は、耕耘爪
の長さ方向の断面厚さを、取付け基部が最も厚く、縦
刃部から横刃部の先端にかけて次第に薄くなるよう
に形成し、該縦刃部から横刃部の先端まで横刃部
の弯曲側に片刃の刃縁を形成すると共に横刃部4
は、峯縁6の先端部分がわずかに外側に弯曲しており、
刃縁5の点Pを通る曲げ曲線Rに沿う断面形状が緩やか
なS字をなすように形成されており、その断面厚さを、
刃縁5の基部が最も厚く、峯縁6に向けて次第に薄くな
るように形成したことで、耕耘爪としての基本性能の
他、耐久性、対衝撃性、低馬力、低振動、非だきこみ
性、非からみつき性、低価格化などが図られる。 【0008】 【実施例】以下、本発明の一実施例を添付の図面を参照
して具体的に説明する。 【0009】図1において、符号1は図示しない水平な
回転軸の軸周に、爪取付けボックスを介して放射方向に
取付けられる耕耘爪で、この耕耘爪1は、取付け基部2
から連続的に縦刃部3を形成し、この縦刃部3の先端側
で一側に順次弯曲させて横刃部4を形成している。取付
け基部2には、爪取付けボックスに取り付けられるとき
にボルトを挿通する取付け孔を設けている。縦刃部3か
ら横刃部4の先端まで横刃部4の弯曲側に片刃の刃縁5
を形成している。 【0010】縦刃部3及び横刃部4における耕耘爪1の
長さ方向及び幅方向の断面厚さをCないしIに、取付け
基部2の断面を図2にそれぞれ実施例の寸法を入れて示
している。これら各断面から明らかなように、その肉厚
は取付け基部2が最も厚く、縦刃部3から横刃部4の先
端にかけて次第に薄くなるように形成されている。ま
た、横刃部4は、図3ないし図5に示すように、峯縁6
の先端部分がわずかに外側に弯曲していて、縦刃部3か
らの弯曲部分から峯縁6の先端部分までの断面形状が緩
やかなS字をなすように形成されている。図1における
Tは耕耘爪1が耕耘作業を行う際の点Pにおけるトロコ
イド曲線の一部であり、Rは点Pを通る横刃部4の曲げ
曲線で、トロコイド曲線Tの内側にあり、その断面を図
4に示している。 【0011】また、縦刃部3及び横刃部4の幅方向の断
面厚さは、刃縁5の基部が最も厚く、この刃縁5の基部
から刃縁5の先端及び峯縁6に向け次第に薄くなるよう
に形成されている。 【0012】ここで、取付け基部2では、A−A断面厚
さは10mmである。縦刃部3では、断面Cで9mm、
断面Dで8mm、断面Eで刃縁5の基部が7.5mm、
峯縁6が5mm、断面Fで刃縁5の基部が7mm、峯縁
6が4.5mmである。横刃部4では、断面Gで刃縁5
の基部が6.5mm、峯縁6が4mm、断面Hで刃縁5
の基部が6mm、峯縁6が3.5mm、断面Iで刃縁5
の基部が5.5mm、峯縁6が3mmである。また、横
刃部4のB−B断面では、刃縁5の基部が6mm、峯縁
6が2.4mmである。 【0013】 【発明の効果】以上説明したように本発明の耕耘爪によ
れば、耕耘爪の長さ方向の断面厚さを、取付け基部
が最も厚く、縦刃部から横刃部の先端にかけて次第
に薄くなるように形成し、該縦刃部から横刃部の先
端まで横刃部の弯曲側に片刃の刃縁を形成すると共
横刃部4は、峯縁6の先端部分がわずかに外側に弯
曲しており、刃縁5の点Pを通る曲げ曲線Rに沿う断面
形状が緩やかなS字をなすように形成されており、その
断面厚さは、刃縁5の基部が最も厚く、峯縁6に向けて
次第に薄くなるように形成されているので、耕耘性能を
向上させ、また、作業精度のよい耕耘作業を行うことが
でき、耐久性、対衝撃性、低馬力、低振動などに優れ、
軽量化により低価格で提供することができる。 【0014】 【発明の効果】以上説明したように本発明の耕耘爪によ
れば、耕耘爪の長さ方向の断面厚さを、取付け基部が最
も厚く、縦刃部から横刃部の先端にかけて次第に薄くな
るように形成し、縦刃部から横刃部の先端まで横刃部の
弯曲側に片刃の刃縁を形成し、縦刃部及び横刃部の幅方
向の断面厚さを、刃縁基部が最も厚く、この刃縁基部か
ら刃縁先端及び峯縁に向け次第に薄くなるように形成す
ると共に、横刃部は、峯縁の先端部分がわずかに外側に
弯曲していて、縦刃部からの弯曲部分から峯縁の先端部
分までの断面形状が緩やかなS字をなすように形成した
ので、耕耘性能を向上させ、また、作業精度のよい耕耘
作業を行うことができ、耐久性、対衝撃性、低馬力、低
振動などに優れ、軽量化により低価格で提供することが
できる。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilling nail having good basic performance as a tilling nail, being durable, lightweight and inexpensive. 2. Description of the Related Art Conventionally, a vertical blade portion is mounted radially around the axis of a horizontal rotating shaft and is continuously formed from a mounting base, and a vertical blade portion is formed to be curved to one side at the tip end side. There is generally known a tilling claw provided with a horizontal blade portion. And the cross section thickness (wall thickness) in the length direction is the thickest at the mounting base,
The thickness is substantially the same from the vertical blade to the tip of the horizontal blade. Also, the cross-sectional thickness (wall thickness) in the width direction is the thickest at the mounting base, and is substantially the same from the vertical blade to the tip of the horizontal blade. [0003] Tilling work is carried out with such a tilling claw,
When the wear of the cultivation claw has advanced and the wear in the radial direction of rotation has reached the limit, it will be replaced with a new cultivation claw, but if you look closely at the cultivation claw that has reached the wear limit, the thickness in the blade width direction will be It remains too much, and the loss on disposal is great. [0004] On the other hand, the items required for the tilling nails include:
In addition to basic performance such as crushing property, reversibility, throwing property, scorching property, leveling property, leveling property, durability, impact resistance, low horsepower, low vibration, non-sticking property, non-sticking property, low Price is required. [0005] Therefore, the present invention seeks to solve the above-mentioned conventional problems (excessive wall thickness in the blade width direction of a cultivating claw that has reached the wear limit) and the need for a cultivating claw. It is intended to realize each of the items as much as possible. SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed radially around a horizontal rotating shaft and continuously connected from a mounting base 2 . Vertical blade formed on
3 and a horizontal blade portion curved to one side at the tip end of the vertical blade portion 3
In tilling claws 1 and a 4, a longitudinal cross-sectional thickness of the tilling claws 1, most thick mounting base 2, formed to be gradually thinner from Tateha portion 3 to the distal end of Yokoha portion 4, the the curved side of the lateral edge portion 4 from Tateha unit 3 to the tip of Yokoha portion 4 to form a cutting edge 5 of the single-edged, Yokoha unit 4, the previous Mineen 6
The end portion is slightly curved outward, and the point P of the blade edge 5 is
The cross-sectional shape along the passing bending curve R forms a gentle S-shape
The cross-sectional thickness is such that the base of the blade edge 5 is
It is formed so that it is the thickest and becomes gradually thinner toward the edge 6.
It is characterized by having been. According to the above construction, the tilling nail of the present invention is a tilling nail 1
Of a longitudinal cross-sectional thickness, the thickest mounting base 2, formed to be gradually thinner from Tateha portion 3 to the distal end of Yokoha portion 4, from the said longitudinal edge portion 3 to the distal end of Yokoha 4 Horizontal blade 4
To form the cutting edge 5 of the single-edged on the curved side, Yokoha 4
Has the tip of the ridgeline 6 slightly curved outward,
The cross-sectional shape along the bending curve R passing through the point P of the blade edge 5 is gentle
It is formed so as to form an S-shape, and its sectional thickness is
The base of the blade edge 5 is the thickest, and gradually becomes thinner toward the ridge edge 6.
With such a configuration, in addition to the basic performance as a tilling nail , durability, impact resistance, low horsepower, low vibration, non-sagging, non-sticking, low cost, etc. are achieved. An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a tilling claw that is radially mounted on a circumference of a horizontal rotating shaft (not shown) via a claw mounting box.
The vertical blade portion 3 is formed continuously from above, and the horizontal blade portion 4 is formed by sequentially curving one side at the tip side of the vertical blade portion 3. The mounting base 2 is provided with mounting holes through which bolts are inserted when mounted on the claw mounting box. From the vertical blade portion 3 to the tip of the horizontal blade portion 4, a single edge blade 5 is provided on the curved side of the horizontal blade portion 4.
Is formed. The cross-sectional thickness in the length direction and the width direction of the tilling claw 1 in the vertical blade portion 3 and the horizontal blade portion 4 is C to I, and the cross section of the mounting base 2 is shown in FIG. Is shown. As is apparent from each of these cross sections, the thickness is formed so that the mounting base 2 is the thickest and gradually becomes thinner from the vertical blade 3 to the tip of the horizontal blade 4. Further, as shown in FIG. 3 to FIG.
Is slightly curved outward, and the cross-sectional shape from the curved portion from the vertical blade portion 3 to the distal end portion of the ridge 6 forms a gentle S-shape. T in FIG. 1 is a part of the trochoid curve at the point P when the tilling claw 1 performs the tilling operation, and R is a bending curve of the horizontal blade portion 4 passing through the point P, which is inside the trochoid curve T. The cross section is shown in FIG. The cross-sectional thickness of the vertical blade portion 3 and the horizontal blade portion 4 in the width direction is the thickest at the base of the blade edge 5, and from the base of the blade edge 5 toward the tip of the blade edge 5 and the ridge edge 6. It is formed so as to become gradually thinner. Here, in the mounting base 2, the cross-sectional thickness along the line AA is 10 mm. In the vertical blade portion 3, the cross section C is 9 mm,
8 mm in section D, 7.5 mm in base of blade edge 5 in section E,
The edge 6 is 5 mm, the base of the edge 5 is 7 mm in cross section F, and the edge 6 is 4.5 mm. In the horizontal blade portion 4, the blade edge 5
Is 6.5 mm, ridge 6 is 4 mm, and section H is blade 5
The base is 6 mm, the ridge 6 is 3.5 mm, and
Is 5.5 mm and the edge 6 is 3 mm. In the BB cross section of the horizontal blade portion 4, the base of the blade edge 5 is 6 mm, and the ridge 6 is 2.4 mm. As described above, according to the tilling nail of the present invention, the cross-sectional thickness in the length direction of the tilling nail 1 is reduced by the mounting base 2.
There thickest, formed to be gradually thinner from Tateha portion 3 to the distal end of Yokoha portion 4, said longitudinal edge portion 3 Yokoha portion 4 of the blade edge of the single-edged in curvature side of the lateral edge portion 4 to the tip 5 the formation Then co
On the other hand , in the horizontal blade portion 4, the tip of the ridge 6 is slightly outwardly curved.
Cross section along a bending curve R that is curved and passes through a point P of the blade edge 5
The shape is formed so as to form a gentle S-shape.
The section thickness is the thickest at the base of the blade edge 5 and toward the edge 6
As it is formed so as to be gradually thinner, it improves tilling performance, and can perform tilling work with high working accuracy, and is excellent in durability, impact resistance, low horsepower, low vibration, etc.
It can be provided at a low price due to weight reduction. As described above, according to the tilling claw of the present invention, the cross-sectional thickness in the length direction of the tilling claw is set so that the thickness of the mounting base is the thickest and the length from the vertical blade to the tip of the horizontal blade. It is formed so as to become gradually thinner, and a single edge is formed on the curved side of the horizontal blade from the vertical blade to the tip of the horizontal blade, and the cross-sectional thickness of the vertical blade and the horizontal blade in the width direction is determined. The edge base is the thickest and is formed so as to become gradually thinner from the edge base toward the tip of the edge and the edge of the edge, and the horizontal edge has the edge of the edge slightly curved outward, Since the cross-sectional shape from the curved part from the part to the tip of the ridge is formed so as to form a gentle S-shape, the tilling performance is improved, and the tilling work with good working accuracy can be performed, and the durability is improved Excellent in shock resistance, low horsepower, low vibration, etc. You.

【図面の簡単な説明】 【図1】本発明による耕耘爪の平面図である。 【図2】図1のA−A線断面図である。 【図3】図1のB−B線断面図である。 【図4】図1の曲げ曲線Rに沿う断面図である。 【図5】本発明による耕耘爪の部分側面図である。 【符号の説明】 1 耕耘爪 2 取付け基部 3 縦刃部 4 横刃部 5 刃縁 6 峯縁 C〜I 断面 T トロコイド曲線 R 曲げ曲線[Brief description of the drawings] FIG. 1 is a plan view of a tilling nail according to the present invention. FIG. 2 is a sectional view taken along line AA of FIG. FIG. 3 is a sectional view taken along line BB of FIG. 1; FIG. 4 is a sectional view along a bending curve R of FIG. FIG. 5 is a partial side view of the tilling nail according to the present invention. [Explanation of symbols] 1 tillage claw 2 Mounting base 3 vertical blade 4 Horizontal blade 5 Edge 6 Minabe C-I cross section T trochoid curve R bending curve

フロントページの続き (56)参考文献 特開 平2−53401(JP,A) 特開 昭62−210903(JP,A) 特開 昭62−87002(JP,A) 特開 平9−298903(JP,A) 実開 昭53−41202(JP,U) 実開 平3−99906(JP,U) 実公 昭39−16401(JP,Y1) (58)調査した分野(Int.Cl.7,DB名) A01B 33/10 Continuation of the front page (56) References JP-A-2-53401 (JP, A) JP-A-62-210903 (JP, A) JP-A-62-87002 (JP, A) JP-A-9-298903 (JP, A) , A) Japanese Utility Model Application Sho 53-41202 (JP, U) Japanese Utility Model Application Hei 3-99906 (JP, U) Japanese Utility Model Utility Model 39-16401 (JP, Y1) (58) Fields surveyed (Int. Cl. 7 , DB) A01B 33/10

Claims (1)

(57)【特許請求の範囲】 【請求項1】 水平な回転軸の軸周に放射方向に向け
付けられ、取付け基部(2)から連続的に形成される縦
刃部(3)と、縦刃部(3)の先端側で一側に弯曲形成
される横刃部(4)とを備える耕耘爪(1)において、 耕耘爪(1)の長さ方向の断面厚さを、取付け基部
(2)が最も厚く、縦刃部(3)から横刃部(4)の先
端にかけて次第に薄くなるように形成し、該縦刃部
(3)から横刃部(4)の先端まで横刃部(4)の弯曲
側に片刃の刃縁(5)を形成すると共に横刃部(4)
は、峯縁(6)の先端部分がわずかに外側に弯曲してお
り、刃縁(5)の点(P)を通る曲げ曲線(R)に沿う
断面形状が緩やかなS字をなすように形成されており、
その断面厚さは、刃縁(5)の基部が最も厚く、峯縁
(6)に向けて次第に薄くなるように形成されている
とを特徴とする耕耘爪。
(57) Patent Claims 1. A attached preparative oriented radially to the axis circumference of a horizontal rotary shaft <br/>, Tateha portion which is continuously formed from the mounting base (2) ( 3) and a cross-sectional thickness in the length direction of the tilling claw (1) in the cultivating claw (1) including a horizontal blade portion (4) curved and formed to one side at the tip side of the vertical blade portion (3). The mounting base
(2) is the thickest and is formed so as to be gradually thinner from the vertical blade portion (3) to the tip of the horizontal blade portion (4).
(3) to form a cutting edge (5) of the single-edged in curvature side of the horizontal blade portion to the tip of the Yokoha portion (4) (4) from Yokoha unit (4)
The tip of the ridge edge (6) is slightly curved outward.
Along the bending curve (R) passing through the point (P) of the cutting edge (5)
The cross-sectional shape is formed so as to form a gentle S-shape,
The section thickness is the thickest at the base of the blade edge (5).
A tillage claw characterized by being formed so as to become gradually thinner toward (6) .
JP20340398A 1998-07-17 1998-07-17 Tillage claw Expired - Fee Related JP3443328B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP20340398A JP3443328B2 (en) 1998-07-17 1998-07-17 Tillage claw
DE69828497T DE69828497D1 (en) 1998-07-17 1998-10-27 Tillage tines
EP19980308806 EP0972436B1 (en) 1998-07-17 1998-10-27 Tillage tine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20340398A JP3443328B2 (en) 1998-07-17 1998-07-17 Tillage claw

Publications (2)

Publication Number Publication Date
JP2000032802A JP2000032802A (en) 2000-02-02
JP3443328B2 true JP3443328B2 (en) 2003-09-02

Family

ID=16473487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20340398A Expired - Fee Related JP3443328B2 (en) 1998-07-17 1998-07-17 Tillage claw

Country Status (1)

Country Link
JP (1) JP3443328B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6045452B2 (en) * 2013-07-17 2016-12-14 小橋工業株式会社 Tillage nail
JP6293070B2 (en) * 2015-01-30 2018-03-14 小橋工業株式会社 Tillage nail
JP6329228B2 (en) * 2016-09-21 2018-05-23 小橋工業株式会社 Tillage nail

Also Published As

Publication number Publication date
JP2000032802A (en) 2000-02-02

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