JP2015195745A - Tilling claw - Google Patents

Tilling claw Download PDF

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JP2015195745A
JP2015195745A JP2014074363A JP2014074363A JP2015195745A JP 2015195745 A JP2015195745 A JP 2015195745A JP 2014074363 A JP2014074363 A JP 2014074363A JP 2014074363 A JP2014074363 A JP 2014074363A JP 2015195745 A JP2015195745 A JP 2015195745A
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Prior art keywords
driving side
width direction
tilling
side portion
claw
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JP6158740B2 (en
Inventor
拓 土谷
Taku Tsuchiya
拓 土谷
森　信二
Shinji Mori
信二 森
泰幸 山崎
Yasuyuki Yamazaki
泰幸 山崎
哲朗 吉良川
Tetsuro Kiragawa
哲朗 吉良川
豊章 三宮
Toyoaki SANNOMIYA
豊章 三宮
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Yanmar Co Ltd
Taiyo Co Ltd
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Yanmar Co Ltd
Taiyo Co Ltd
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Priority to JP2014074363A priority Critical patent/JP6158740B2/en
Priority to PCT/JP2014/084547 priority patent/WO2015151370A1/en
Publication of JP2015195745A publication Critical patent/JP2015195745A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
    • A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
    • A01B33/10—Structural or functional features of the tools ; Theoretical aspects of the cutting action
    • A01B33/103—Structural or functional features of the tools ; Theoretical aspects of the cutting action the rotating shaft being oriented horizontally
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
    • A01B33/02—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs with tools on horizontal shaft transverse to direction of travel
    • A01B33/028—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs with tools on horizontal shaft transverse to direction of travel of the walk-behind type

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a tilling claw capable of switching smoothly the moving direction of tilled soil between inside heaping side and outside heaping side, reducing vibration of a tillage work machine, and suppressing increase of horse power load and increase of load fluctuation of the tillage work machine in tillage work.SOLUTION: Tilling claws 20L, 20R include, in a state of being attached to a tending machine 1: inner curved surfaces 23L, 23R curved toward width direction W inner side of a machine body 10 of the tending machine 1 from attachment base parts 21L, 21R sides toward a tip and arranged on inner surfaces of one driving side parts 22L, 22R of the driving side parts 22L, 22R in normal rotation and driving side parts 24L, 24R in reverse rotation; outer curved surfaces 25L, 25R curved toward width direction W outer side of the machine body 10 from the attachment base parts 21L, 21R sides toward the tip and arranged on outer surfaces of the other driving side parts 24L, 24R; and notches 27L, 27R on tip edges.

Description

本発明は、耕耘爪に関する。   The present invention relates to a tilling nail.

従来、耕耘爪を用いて内盛耕耘及び外盛耕耘を行う管理機の技術は公知である（例えば、特許文献１）。
特許文献１に記載の管理機は、耕耘爪による耕耘土の移動方向を内盛側と外盛側の間で切り換えて、内盛耕耘・外盛耕耘の切り換えを行うときには、爪軸を付け替えて、耕耘爪の先端の向きを変える必要があった。そして、爪軸を付け替える際に、爪軸を固定するためのピンの抜き差しを行わなければならなかった。 Conventionally, the technique of the management machine which performs inner-side tillage and outer-side tillage using a tilling nail is publicly known (for example, patent documents 1).
When the management machine described in Patent Document 1 switches the moving direction of the cultivated soil by the tilling claw between the inner and outer embankment sides and switches between the inner and outer tilling, the nail shaft is changed. It was necessary to change the direction of the tip of the tilling nail. And when changing a nail | claw axis | shaft, the pin for fixing a nail | claw axis | shaft had to be inserted / removed.

しかし、爪軸の付け替えを行う際には、前記ピンの向きを間違えないように注意しながら作業を行わなければならなかったり、泥のついた耕耘爪を扱わなければならなかったりして、作業が面倒であった。また、ピンが変形していたときには、爪軸の付け替えが困難になるおそれがあった。これにより、内盛耕耘・外盛耕耘の切り換えを行う際に手間がかかることがあった。   However, when changing the nail axis, work must be done with care not to make a mistake in the direction of the pin, or the mud tilling nail must be handled. Was troublesome. Further, when the pin is deformed, it may be difficult to replace the claw shaft. This sometimes takes time when switching between inner and outer tillage.

また、耕耘爪を回転させて耕耘作業を行う際に、耕耘爪の耕盤面に接する部分の距離が長くなると、耕耘爪が土壌から受ける負荷が増大する。これにより管理機の振動が増大し、管理機の馬力負荷や負荷変動が増大してしまう。   Further, when the tilling work is performed by rotating the tilling claws, if the distance between the portions of the tilling claws contacting the surface of the cultivation board increases, the load that the tilling claws receive from the soil increases. As a result, the vibration of the management machine increases, and the horsepower load and load fluctuation of the management machine increase.

特開２００７−２５２２２２号公報JP 2007-252222 A

本発明は、耕耘土の移動方向を内盛側と外盛側の間で円滑に切り換えることができ、かつ、耕耘作業の際に、耕耘作業機の振動を減少させることでき、耕耘作業機の馬力負荷の増大や負荷変動の増大を抑えることが可能な耕耘爪を提供する。   The present invention can smoothly switch the moving direction of the tillage between the inner filling side and the outer filling side, and can reduce the vibration of the tilling work machine during the tilling work. A tilling claw capable of suppressing an increase in horsepower load and an increase in load fluctuation is provided.

請求項１に記載の耕耘爪は、
耕耘作業機に取付可能な耕耘爪であって、
前記耕耘作業機に取り付けられた状態で、正回転時の打込み側部分、及び逆回転時の打込み側部分の内の、一方の打込み側部分の内側面には、取付基部側から先端に向かうに伴って前記耕耘作業機の機体の幅方向内側に向かうように湾曲する内側湾曲面が形成され、他方の打込み側部分の外側面には、取付基部側から先端に向かうに伴って前記機体の幅方向外側に向かうように湾曲する外側湾曲面が形成され、
先端縁部には、切欠が形成される。 The tillage nail according to claim 1 is:
A tilling claw that can be attached to a tilling work machine,
In the state attached to the tillage work machine, the inner side surface of one driving side portion of the driving side portion at the time of forward rotation and the driving side portion at the time of reverse rotation is directed from the mounting base side toward the tip. Accordingly, an inner curved surface that curves toward the inner side in the width direction of the machine body of the tillage work machine is formed, and the outer surface of the other driving side portion has a width of the machine body as it goes from the attachment base side to the tip. An outer curved surface that is curved so as to be directed outward is formed,
A notch is formed in the leading edge.

請求項２に記載の耕耘爪は、
前記切欠により、前記一方の打込み側部分の先端縁部と、前記他方の打込み側部分の先端縁部を分断し、
前記切欠の周辺において、前記一方の打込み側部分の先端縁部を前記機体の幅方向内側に突出させて内側湾曲曲げ部を形成し、前記他方の打込み側部分の先端縁部を前記機体の幅方向外側に突出させて外側湾曲曲げ部を形成する。 The tillage nail according to claim 2
The notch divides the leading edge of the one driving side part and the leading edge of the other driving side part,
In the vicinity of the notch, the leading edge of the one driving side portion protrudes inward in the width direction of the airframe to form an inner curved bent portion, and the leading edge of the other driving side portion is the width of the airframe. An outer curved bent portion is formed by projecting outward in the direction.

請求項３に記載の耕耘爪は、
爪幅方向に平行な断面に関しては、前記一方の打込み側部分の断面が、前記爪幅方向外側に向かうのに伴って前記機体の幅方向外側に離間し、前記他方の打込み側部分の断面が、前記爪幅方向外側に向かうのに伴って前記機体の幅方向内側に離間するねじり形状を有する。 The tillage nail according to claim 3
Regarding the cross section parallel to the claw width direction, the cross section of the one driving side portion is separated to the outside in the width direction of the airframe as it goes outward in the claw width direction, and the cross section of the other driving side portion is And a torsional shape that separates inward in the width direction of the airframe as it goes outward in the claw width direction.

請求項４に記載の耕耘爪は、
前記一方の打込み側部分における前記機体の幅方向外側への最大離間量が、前記他方の打込み側部分における前記機体の幅方向内側への最大離間量よりも小さく、
前記一方の打込み側部分の前記爪幅方向のサイズが、前記他方の打込み側部分の前記爪幅方向のサイズよりも小さい。 The tillage nail according to claim 4 is:
The maximum distance to the outside in the width direction of the airframe in the one driving side portion is smaller than the maximum distance to the inside in the width direction of the airframe in the other driving side portion,
The size of the one driving side portion in the claw width direction is smaller than the size of the other driving side portion in the claw width direction.

請求項５に記載の耕耘爪は、
前記一方の打込み側部分の基部には一側湾曲部が形成され、前記他方の打込み側部分の基部には他側湾曲部が形成され、前記一側湾曲部の湾曲の程度と、前記他側湾曲部の湾曲の程度が互いに異なる。 The tillage nail according to claim 5
One side curved portion is formed at the base of the one driving side portion, the other side bending portion is formed at the base of the other driving side portion, the degree of bending of the one side bending portion, and the other side The degree of bending of the bending portions is different from each other.

本発明は、耕耘爪の回転方向を変更することで、耕耘爪による耕耘土の移動方向を内盛側と外盛側の間で円滑に切り替えることが可能となるという効果を奏する。
また、本発明は、耕耘作業の際に、耕耘作業機の振動を減少させることができ、耕耘作業機の馬力負荷の増大や負荷変動の増大を抑えることが可能になるという効果を奏する。 The present invention has an effect that it is possible to smoothly switch the moving direction of the cultivated soil by the tilling claws between the inner and outer embankments by changing the rotation direction of the tilling claws.
In addition, the present invention has an effect that vibration of the tillage working machine can be reduced during the tilling work, and an increase in horsepower load and an increase in load fluctuation of the tilling work machine can be suppressed.

管理機の側面図。The side view of a management machine. 管理機に取り付けられた状態の耕耘爪を前方から見た図。The figure which looked at the tilling nail of the state attached to the management machine from the front. （ａ）左側の耕耘爪の斜視図、（ｂ）図３（ａ）の耕耘爪の裏面の斜視図。(A) The perspective view of the left tilling nail, (b) The perspective view of the back surface of the tilling nail of FIG. 3 (a). （ａ）図３（ｂ）の耕耘爪を先端側から見た図、（ｂ）図３（ｂ）のＸ−Ｘ断面図。(A) The figure which looked at the tilling nail of FIG.3 (b) from the front end side, (b) XX sectional drawing of FIG.3 (b). 図３（ａ）の耕耘爪の正面図。The front view of the tilling nail | claw of Fig.3 (a). （ａ）右側の耕耘爪の斜視図、（ｂ）図６（ａ）の耕耘爪の裏面の斜視図。(A) The perspective view of the right tilling nail, (b) The perspective view of the back surface of the tilling nail of FIG. 6 (a). （ａ）図６（ｂ）の耕耘爪を先端側から見た図、（ｂ）図６（ｂ）のＹ−Ｙ断面図。(A) The figure which looked at the tilling nail | claw of FIG.6 (b) from the front end side, (b) YY sectional drawing of FIG.6 (b). 図６（ａ）の耕耘爪の正面図。The front view of the tilling nail | claw of Fig.6 (a). （ａ）耕耘爪を正回転させたときの耕耘土の移動を示す概念図、（ｂ）耕耘爪を逆回転させたときの耕耘土の移動を示す概念図。(A) Conceptual diagram showing the movement of the cultivated soil when the tilling claw is rotated forward, (b) Conceptual diagram showing the movement of the cultivated soil when the tilling claw is reversely rotated.

以下では、耕耘爪２０Ｌ・２０Ｒが取り付けられる耕耘作業機（管理機）１について説明する。   Below, the tilling work machine (management machine) 1 to which the tilling claws 20L and 20R are attached will be described.

図１に示すように、管理機１は、ロータリ作業型の管理機であり、耕耘作業や畝立て作業等の管理作業を行うことができる作業機である。管理機１は、ミッションケース１１、エンジン１２、燃料タンク１３、及び走行輪１４等を備える。
なお、本明細書において機体１０とは、ミッションケース１１、エンジン１２、及び燃料タンク１３等を合わせたもの、すなわち管理機１の本体を指す。 As shown in FIG. 1, the management machine 1 is a rotary work type management machine, and is a work machine capable of performing management work such as tillage work and raising work. The management machine 1 includes a mission case 11, an engine 12, a fuel tank 13, a traveling wheel 14, and the like.
In the present specification, the airframe 10 refers to a combination of the mission case 11, the engine 12, the fuel tank 13, and the like, that is, the main body of the management machine 1.

機体１０の前部にはエンジン１２が配置される。エンジン１２の上方には燃料タンク１３が備えられる。エンジン１２の後方にはミッションケース１１が配置される。ミッションケース１１は、トランスミッションを内装するケースである。   An engine 12 is disposed at the front of the body 10. A fuel tank 13 is provided above the engine 12. A mission case 11 is disposed behind the engine 12. The mission case 11 is a case in which a transmission is installed.

ミッションケース１１の前下部には、左右の走行輪１４が回転可能に支持される。   Left and right traveling wheels 14 are rotatably supported at the front lower portion of the mission case 11.

ミッションケース１１の後下部には、爪軸１６が回転可能に支持される。爪軸１６は、ミッションケース１１の左右両側方に突出するように設けられ、その外周面上に複数の耕耘爪２０Ｌ・２０Ｒが固定される。爪軸１６は、正逆回転可能に構成されている。そして、耕耘爪２０Ｌ・２０Ｒは、爪軸１６と共に一体回転するように構成されている。耕耘爪２０Ｌ・２０Ｒの詳細な説明は後述する。耕耘爪２０Ｌ・２０Ｒの後方には、補助輪１７が設けられている。   A claw shaft 16 is rotatably supported at the lower rear portion of the mission case 11. The claw shaft 16 is provided so as to protrude on both the left and right sides of the mission case 11, and a plurality of tilling claws 20L and 20R are fixed on the outer peripheral surface thereof. The claw shaft 16 is configured to be rotatable forward and backward. The tilling claws 20L and 20R are configured to rotate integrally with the claw shaft 16. Detailed description of the tilling claws 20L and 20R will be described later. An auxiliary wheel 17 is provided behind the tilling claws 20L and 20R.

エンジン１２からの動力は、ミッションケース１１に伝達されて、ミッションケース１１内で、前記トランスミッションにより変速されると共に走行用動力と耕耘爪用動力に分離された後、走行輪１４及び爪軸１６にそれぞれ出力される。これにより、走行輪１４及び耕耘爪２０Ｌ・２０Ｒがそれぞれ回転駆動する。   The power from the engine 12 is transmitted to the transmission case 11 and is shifted in the transmission case 11 by the transmission and separated into the driving power and the power for the tilling claws. Each is output. As a result, the traveling wheel 14 and the tilling claws 20L and 20R are driven to rotate.

機体１０の後部には、操作部３０が設けられている。操作部３０には、ハンドル３１、変速レバー３２、爪軸１６（耕耘爪２０Ｌ・２０Ｒ）の回転方向を正逆切り替えるための切替操作具（不図示）等、管理機１を人為的に操作するための各種操作具が設けられている。   An operation unit 30 is provided at the rear of the machine body 10. The management unit 1 is manually operated on the operation unit 30, such as a switching operation tool (not shown) for switching the rotation direction of the handle 31, the shift lever 32, and the claw shaft 16 (cultivation claws 20L and 20R) forward and backward. Various operation tools are provided.

以下では、耕耘爪２０Ｌ・２０Ｒについて説明する。   Below, the tilling claws 20L and 20R will be described.

図２に示すように、耕耘爪２０Ｌ・２０Ｒは、機体１０の幅方向（左右幅方向）Ｗに複数設けられている。
耕耘爪２０Ｌ・２０Ｒは、湾曲した板形状を有している。耕耘爪２０Ｌ・２０Ｒは、互いに対称な形状に形成されている。耕耘爪２０Ｌは、ミッションケース１１の左側に設けられており、耕耘爪２０Ｒは、ミッションケース１１の右側に設けられている。耕耘爪２０Ｌ・２０Ｒは、本実施形態では六つづつ設けられている。 As shown in FIG. 2, a plurality of tilling claws 20 </ b> L and 20 </ b> R are provided in the width direction (left-right width direction) W of the body 10.
The tilling claws 20L and 20R have a curved plate shape. The tilling claws 20L and 20R are formed in symmetrical shapes. The tilling claw 20 </ b> L is provided on the left side of the mission case 11, and the tilling claw 20 </ b> R is provided on the right side of the mission case 11. In the present embodiment, six tilling claws 20L and 20R are provided.

図３（ａ）〜図８に示すように、耕耘爪２０Ｌ・２０Ｒの取付基部２１Ｌ・２１Ｒ、及び爪軸１６の外周側面に形成される取付フランジ１８Ｌ・１８Ｒにはボルト孔がそれぞれ形成されている。耕耘爪２０Ｌ・２０Ｒの取付基部２１Ｌ・２１Ｒは、爪軸１６の取付フランジ１８Ｌ・１８Ｒにボルト、ナット等でそれぞれ取り付けられており、爪軸１６と一体回転する。   As shown in FIG. 3A to FIG. 8, bolt holes are formed in the mounting bases 21L and 21R of the tilling claws 20L and 20R and the mounting flanges 18L and 18R formed on the outer peripheral side surface of the claw shaft 16, respectively. Yes. The attachment bases 21L and 21R of the tilling claws 20L and 20R are respectively attached to the attachment flanges 18L and 18R of the claw shaft 16 with bolts, nuts, etc., and rotate integrally with the claw shaft 16.

耕耘爪２０Ｌ・２０Ｒの正回転時の打込み側部分２２Ｌ・２２Ｒ、及び逆回転時の打込み側部分２４Ｌ・２４Ｒの内の、一方の打込み側部分２２Ｌ・２２Ｒの内側面には、内側湾曲面２３Ｌ・２３Ｒがそれぞれ形成されており、他方の打込み側部分２４Ｌ・２４Ｒの外側面には、外側湾曲面２５Ｌ・２５Ｒがそれぞれ形成されている。   Of the driving side portions 22L and 22R when the tilling claws 20L and 20R are rotated forward and the driving side portions 24L and 24R during the reverse rotation, the inner curved surface 23L 23R is formed, and outer curved surfaces 25L and 25R are formed on the outer surfaces of the other driving side portions 24L and 24R, respectively.

図３（ａ）、図４（ｂ）、図６（ａ）及び図７（ｂ）に示すように、内側湾曲面２３Ｌ・２３Ｒは、一方の打込み側部分２２Ｌ・２２Ｒの内側面（機体１０の幅方向Ｗ内側の面）に形成されている。内側湾曲面２３Ｌ・２３Ｒは、取付基部２１Ｌ・２１Ｒ側から先端に向かうに伴って機体１０の幅方向Ｗ内側（ミッションケース１１側）に向かうように湾曲する形状を有している。
また、内側湾曲面２３Ｌ・２３Ｒは、正回転方向下流側に向かうに従い、すなわち、一方の打込み側部分２２Ｌ・２２Ｒから打ち込まれるときの回転方向下流側に向かうに従い、機体１０の幅方向Ｗ内側に傾く形状を有している。 As shown in FIG. 3A, FIG. 4B, FIG. 6A, and FIG. 7B, the inner curved surfaces 23L and 23R are the inner side surfaces of the one driving side portion 22L and 22R (airframe 10). ) In the width direction W. The inner curved surfaces 23L and 23R have a shape that curves toward the inner side in the width direction W (the mission case 11 side) of the airframe 10 as it goes from the attachment bases 21L and 21R to the tip.
Further, the inner curved surfaces 23L and 23R are arranged on the inner side in the width direction W of the airframe 10 as they move toward the downstream side in the normal rotation direction, that is, toward the downstream side in the rotation direction when driven from one of the driving side portions 22L and 22R. It has an inclined shape.

図３（ｂ）、図４（ｂ）、図６（ｂ）、及び図７（ｂ）に示すように、外側湾曲面２５Ｌ・２５Ｒは、他方の打込み側部分２４Ｌ・２４Ｒの外側面（機体１０の幅方向Ｗ外側の面）に形成されている。外側湾曲面２５Ｌ・２５Ｒは、取付基部２１Ｌ・２１Ｒ側から先端に向かうに伴って機体１０の幅方向Ｗ外側に向かうように湾曲する形状を有している。
また、外側湾曲面２５Ｌ・２５Ｒは、逆回転方向下流側に向かうに従い、すなわち、他方の打込み側部分２４Ｌ・２４Ｒから打ち込まれるときの回転方向下流側に向かうに従い、機体１０の幅方向Ｗ外側に傾く形状を有している。 As shown in FIGS. 3 (b), 4 (b), 6 (b), and 7 (b), the outer curved surfaces 25L and 25R are the outer surfaces of the other driving side portions 24L and 24R (the fuselage). 10 on the outer surface in the width direction W). The outer curved surfaces 25L and 25R have shapes that curve toward the outer side in the width direction W of the airframe 10 as they go from the attachment bases 21L and 21R to the tip.
Further, the outer curved surfaces 25L and 25R are arranged on the outer side in the width direction W of the fuselage 10 toward the downstream side in the reverse rotation direction, that is, toward the downstream side in the rotation direction when driven from the other driving side portions 24L and 24R. It has an inclined shape.

なお、内側湾曲面２３Ｌ・２３Ｒと、外側湾曲面２５Ｌ・２５Ｒは互いに対象（湾曲の程度（曲がり具合）が同一）である必要はなく、作業状況等に応じて湾曲の程度に差を有していてもよい。   Note that the inner curved surfaces 23L and 23R and the outer curved surfaces 25L and 25R do not need to be objects of each other (the degree of bending (the degree of bending) is the same), and there is a difference in the degree of bending depending on the work situation or the like. It may be.

図４（ｂ）及び図７（ｂ）に示すように、耕耘爪２０Ｌ・２０Ｒは、爪幅方向ＷＬ・ＷＲに平行な断面ＳＬ・ＳＲに関しては、一方の打込み側部分２２Ｌ・２２Ｒの断面ＳＬ１・ＳＲ１が、爪幅方向ＷＬ・ＷＲ外側に向かうのに伴って機体１０の幅方向Ｗ外側に離間し、他方の打込み側部分２４Ｌ・２４Ｒの断面ＳＬ２・ＳＲ２が、爪幅方向ＷＬ・ＷＲ外側に向かうのに伴って機体１０の幅方向Ｗ内側に離間するねじり形状を有する。
すなわち、耕耘爪２０Ｌ・２０Ｒは、一方の打込み側部分２２Ｌ・２２Ｒと、他方の打込み側部分２４Ｌ・２４Ｒが、ねじり中心ＯＬ・ＯＲで連結され、爪幅方向ＷＬ・ＷＲに対してオフセットして配置される形状を有する。 As shown in FIGS. 4B and 7B, the tilling claws 20L and 20R have a cross section SL1 of one driving side portion 22L and 22R with respect to a cross section SL and SR parallel to the claw width direction WL and WR. As SR1 moves outward in the claw width direction WL / WR, the body 10 is separated to the outside in the width direction W, and the cross sections SL2 and SR2 of the other driving side portions 24L and 24R are outside the claw width direction WL and WR. As it moves toward the center of the machine body 10.
That is, in the tilling claws 20L and 20R, one driving side portion 22L and 22R and the other driving side portion 24L and 24R are connected by the twist center OL and OR, and are offset with respect to the nail width direction WL and WR. It has a shape to be arranged.

図４（ｂ）及び図７（ｂ）に示すように、一方の打込み側部分２２Ｌ・２２Ｒにおける機体１０の幅方向Ｗ外側への最大離間量（オフセット量）ＰＬ１・ＰＲ１が、他方の打込み側部分２４Ｌ・２４Ｒにおける機体１０の幅方向Ｗ内側への最大離間量（オフセット量）ＰＬ２・ＰＲ２よりも小さい（ＰＬ１＜ＰＬ２、ＰＲ１＜ＰＲ２）。
また、一方の打込み側部分２２Ｌ・２２Ｒの爪幅方向ＷＬ・ＷＲのサイズＷＬ１・ＷＲ１が、他方の打込み側部分２４Ｌ・２４Ｒの爪幅方向ＷＬ・ＷＲのサイズＷＬ２・ＷＲ２よりも小さい（ＷＬ１＜ＷＬ２、ＷＲ１＜ＷＲ２）。
従って、一方の打込み側部分２２Ｌ・２２Ｒが、他方の打込み側部分２４Ｌ・２４Ｒよりも小さい。
また、耕耘爪２０Ｌ・２０Ｒは、ねじり中心ＯＬ・ＯＲと、爪幅方向ＷＬ・ＷＲの中心ＯＬ'・ＯＲ'が異なっている（図４（ｂ）及び図７（ｂ）参照）。 As shown in FIG. 4B and FIG. 7B, the maximum separation amount (offset amount) PL1 / PR1 to the outside in the width direction W of the body 10 in one of the driving side portions 22L and 22R is the other driving side. It is smaller than the maximum distance (offset amount) PL2 · PR2 (PL1 <PL2, PR1 <PR2) inward in the width direction W of the body 10 in the portions 24L and 24R.
Also, the sizes WL1 and WR1 in the claw width direction WL and WR of the one driving side portions 22L and 22R are smaller than the sizes WL2 and WR2 in the claw width direction WL and WR of the other driving side portions 24L and 24R (WL1 < WL2, WR1 <WR2).
Accordingly, one driving side portion 22L / 22R is smaller than the other driving side portion 24L / 24R.
Further, the tilling claws 20L and 20R are different from each other in torsion center OL · OR and the center OL ′ · OR ′ in the claw width direction WL · WR (see FIGS. 4B and 7B).

図３（ａ）〜図８に示すように、耕耘爪２０Ｌ・２０Ｒの先端縁部には、切欠２７Ｌ・２７Ｒが形成されている。切欠２７Ｌ・２７Ｒは、耕耘爪２０Ｌ・２０Ｒの爪幅方向Ｗα中央部に配置されている。切欠２７Ｌ・２７Ｒにより、一方の打込み側部分２２Ｌ・２２Ｒの先端縁部と、他方の打込み側部分２４Ｌ・２４Ｒの先端縁部が分断されている。
耕耘爪２０Ｌ・２０Ｒには、内側湾曲曲げ部２８Ｌ・２８Ｒと外側湾曲曲げ部２９Ｌ・２９Ｒが形成されている。内側湾曲曲げ部２８Ｌ・２８Ｒは、切欠２７Ｌ・２７Ｒの周辺において、一方の打込み側部分２２Ｌ・２２Ｒ側の先端縁部を、機体１０の幅方向Ｗ内側に突出させた形状を有する。外側湾曲曲げ部２９Ｌ・２９Ｒは、切欠２７Ｌ・２７Ｒの周辺において、他方の打込み側部分２４Ｌ・２４Ｒ側の先端縁部を、機体１０の幅方向Ｗ外側に突出させた形状を有する。 As shown in FIGS. 3A to 8, notches 27 </ b> L and 27 </ b> R are formed at the front end edges of the tilling claws 20 </ b> L and 20 </ b> R. The notches 27L and 27R are arranged at the center of the claw width direction Wα of the tilling claws 20L and 20R. By the notches 27L and 27R, the leading edge of one driving side portion 22L and 22R and the leading edge of the other driving side portion 24L and 24R are divided.
Inner curved bent portions 28L and 28R and outer curved bent portions 29L and 29R are formed on the tilling claws 20L and 20R. The inner curved bent portions 28L and 28R have a shape in which the leading edge on one driving side portion 22L and 22R side protrudes inward in the width direction W of the body 10 around the notches 27L and 27R. The outer curved bent portions 29L and 29R have a shape in which the tip edge portion on the other driving side portion 24L and 24R side protrudes outward in the width direction W of the body 10 around the notches 27L and 27R.

図３（ａ）及び図５（ａ）に示すように、耕耘爪２０Ｌ・２０Ｒの正回転時には、耕耘爪２０Ｌ・２０Ｒの一方の打込み側部分２２Ｌ・２２Ｒから土壌に打ち込まれる。このとき、一方の打込み側部分２２Ｌ・２２Ｒの内側湾曲面２３Ｌ・２３Ｒは、耕耘土５０をすくって、そして、すくった耕耘土５０を機体１０の幅方向Ｗ内側（内盛側）に向かって移動させる（飛ばす）こととなる。
従って、耕耘爪２０Ｌ・２０Ｒを正回転させることによって、耕耘爪２０Ｌ・２０Ｒの内側湾曲面２３Ｌ・２３Ｒにより耕耘土５０を機体１０の幅方向Ｗ内側（内盛側）に向かって移動させて、内盛耕耘を行い、内盛りの畝を成形することが可能となる。 As shown in FIGS. 3A and 5A, when the tilling claws 20L and 20R are rotated forward, they are driven into the soil from one of the driving side portions 22L and 22R of the tilling claws 20L and 20R. At this time, the inner curved surfaces 23L and 23R of the one driving side portions 22L and 22R scoop the cultivated soil 50, and the scooped cultivated soil 50 toward the inner side (inner side) in the width direction W of the body 10. It will be moved (flyed).
Therefore, by rotating the tilling claws 20L and 20R in the forward direction, the tilling soil 50 is moved toward the inner side in the width direction W (inner side) of the body 10 by the inner curved surfaces 23L and 23R of the tilling claws 20L and 20R. It is possible to mold the inner paddy by performing the inner paddy cultivation.

図３（ｂ）及び図７（ｂ）に示すように、耕耘爪２０Ｌ・２０Ｒの逆回転時には、耕耘爪２０Ｌ・２０Ｒの他方の打込み側部分２４Ｌ・２４Ｒから土壌に打ち込まれる。このとき、他方の打込み側部分２４Ｌ・２４Ｒの外側湾曲面２５Ｌ・２５Ｒは、耕耘土５０をすくって、そして、すくった耕耘土５０を機体１０の幅方向Ｗ外側（外盛側）に向かって移動させる（飛ばす）こととなる。
従って、耕耘爪２０Ｌ・２０Ｒを逆回転させることによって、耕耘爪２０Ｌ・２０Ｒの外側湾曲面２５Ｌ・２５Ｒにより耕耘土５０を機体１０の幅方向Ｗ外側（外盛側）に向かって移動させて、外盛耕耘を行い、外盛りの畝を成形することが可能となる。 As shown in FIGS. 3B and 7B, when the tilling claws 20L and 20R are reversely rotated, they are driven into the soil from the other driving side portions 24L and 24R of the tilling claws 20L and 20R. At this time, the outer curved surfaces 25L and 25R of the other driving side portions 24L and 24R scoop the cultivated soil 50, and the scooped cultivated soil 50 toward the outer side in the width direction W (outside side) of the body 10. It will be moved (flyed).
Accordingly, by rotating the tilling claws 20L and 20R in reverse, the tilling soil 50 is moved toward the outer side in the width direction W of the body 10 (on the outer side) by the outer curved surfaces 25L and 25R of the tilling claws 20L and 20R. It is possible to form an externally built ridge by performing an externally cultivated plow.

以上のように構成することで、耕耘爪２０Ｌ・２０Ｒの回転方向を変更することで、耕耘爪２０Ｌ・２０Ｒによる耕耘土の移動方向を、機体１０の幅方向Ｗ内側（内盛側）と、機体１０の幅方向Ｗ外側（外盛側）の間で切り換えることが可能となる（図９（ａ）及び図９（ｂ）参照）。従って、耕耘土の移動方向を内盛側と外盛側の間で円滑に切り替えることが可能となる。   By configuring as described above, by changing the rotation direction of the tilling claws 20L and 20R, the moving direction of the tilled soil by the tilling claws 20L and 20R is changed to the width direction W inner side (inner side) of the body 10, and It is possible to switch between the width direction W outer side (external side) of the airframe 10 (see FIG. 9A and FIG. 9B). Therefore, it becomes possible to smoothly switch the moving direction of the cultivated soil between the inner filling side and the outer filling side.

また、図４（ｂ）及び図７（ｂ）に示すように、ＰＬ１＜ＰＬ２、ＰＲ１＜ＰＲ２、ＷＬ１＜ＷＬ２、及びＷＲ１＜ＷＲ２となるように構成することで、耕耘爪２０Ｌ・２０Ｒの正回転時には、一方の打込み側部分２２Ｌ・２２Ｒにより耕耘されるので、移動させる耕耘土５０の量を少なくし、かつ、横方向への耕耘土５０の移動を少なくすることが可能となる。従って、整地性能を重視した耕耘作業を行うことが可能となる。
また、耘爪２０Ｌ・２０Ｒの逆回転時には、他方の打込み側部分２４Ｌ・２４Ｒにより耕耘されるので、移動させる耕耘土５０の量を多くし、横方向への耕耘土５０の移動を多くし、かつ、耕耘土５０を遠くまで移動させることが可能となる。従って、溝上げ性能を重視した耕耘作業を行うことが可能となる。 Further, as shown in FIGS. 4 (b) and 7 (b), by constructing PL1 <PL2, PR1 <PR2, WL1 <WL2, and WR1 <WR2, At the time of rotation, since it is cultivated by one of the driving side portions 22L and 22R, it is possible to reduce the amount of cultivated soil 50 to be moved and to reduce the movement of the cultivated soil 50 in the lateral direction. Therefore, it becomes possible to perform the tilling work with an emphasis on leveling performance.
Further, during reverse rotation of the claws 20L and 20R, since the other driving side portions 24L and 24R are cultivated, the amount of the cultivated soil 50 to be moved is increased, the movement of the cultivated soil 50 in the lateral direction is increased, And it becomes possible to move the tilling soil 50 far. Therefore, it is possible to perform a tilling work that emphasizes the groove raising performance.

また、耕耘爪２０Ｌ・２０Ｒの先端縁部に切欠２７Ｌ・２７Ｒを形成することで、耕耘爪２０Ｌ・２０Ｒを回転させて耕耘作業を行う際に、耕耘爪２０Ｌ・２０Ｒの耕盤面に接する部分の距離が、切欠２７Ｌ・２７Ｒの分だけ短くなる。これにより、耕耘作業の際に、耕耘爪２０Ｌ・２０Ｒが土壌から受ける負荷を減少させることができる。従って、耕耘作業の際に、管理機１の振動を減少させることができ、管理機１の馬力負荷の増大や負荷変動の増大を抑えることが可能となる。   In addition, by forming the notches 27L and 27R at the end edges of the tilling claws 20L and 20R, when the tilling claws 20L and 20R are rotated to perform the tilling work, the portions of the tilling claws 20L and 20R that are in contact with the cultivation surface The distance is shortened by the notches 27L and 27R. Thereby, the load which the cultivation claws 20L and 20R receive from the soil during the cultivation work can be reduced. Therefore, the vibration of the management machine 1 can be reduced during the tillage work, and an increase in horsepower load and a load fluctuation of the management machine 1 can be suppressed.

また、切欠２７Ｌ・２７Ｒの摩耗量を基にして、耕耘爪２０Ｌ・２０Ｒの交換時期を判断することが可能であり、切欠２７Ｌ・２７Ｒを耕耘爪２０Ｌ・２０Ｒの交換時期を判断するための目安として用いることが可能である。   Further, it is possible to determine the replacement timing of the tilling claws 20L and 20R based on the wear amount of the notches 27L and 27R, and a guideline for determining the replacement timing of the cutting claws 20L and 20R. Can be used.

また、耕耘爪２０Ｌ・２０Ｒに内側湾曲曲げ部２８Ｌ・２８Ｒと、外側湾曲曲げ部２９Ｌ・２９Ｒを形成することで、耕耘爪２０Ｌ・２０Ｒを正回転させて、内側湾曲曲げ部２８Ｌ・２８Ｒで耕耘土５０を飛ばす場合は、内側湾曲曲げ部２８Ｌ・２８Ｒで土を削り取るので、外側湾曲曲げ部２９Ｌ・２９Ｒが土壌に強く接触することを回避できる。また、耕耘爪２０Ｌ・２０Ｒを逆回転させて、外側湾曲曲げ部２９Ｌ・２９Ｒで耕耘土５０を飛ばす場合は、外側湾曲曲げ部２９Ｌ・２９Ｒで土を削り取るので、内側湾曲曲げ部２８Ｌ・２８Ｒが土壌に強く接触することを回避できる。これにより、耕耘作業の際に、管理機１の振動を減少させることができ、管理機１の馬力負荷の増大や負荷変動の増大を抑えることが可能となる。   Further, by forming the inner curved bent portions 28L and 28R and the outer curved bent portions 29L and 29R on the tilling claws 20L and 20R, the tilling claws 20L and 20R are rotated forward, and the inner curved bent portions 28L and 28R are used for cultivation. When the soil 50 is blown, the soil is scraped off by the inner curved bent portions 28L and 28R, so that the outer curved bent portions 29L and 29R can be prevented from coming into strong contact with the soil. When the tilling claws 20L and 20R are rotated in the reverse direction and the tilling soil 50 is blown off by the outer curved bent portions 29L and 29R, the inner curved bent portions 28L and 28R are cut off by the outer curved bent portions 29L and 29R. A strong contact with the soil can be avoided. Thereby, the vibration of the management machine 1 can be reduced during the tillage work, and an increase in the horsepower load of the management machine 1 and an increase in load fluctuation can be suppressed.

また、切欠２７Ｌ・２７Ｒの周辺に、内側湾曲曲げ部２８Ｌ・２８Ｒと、外側湾曲曲げ部２９Ｌ・２９Ｒを形成することで、耕耘爪２０Ｌ・２０Ｒにより耕耘土５０を飛ばす能力を向上させることができ、耕耘爪２０Ｌ・２０Ｒの耕耘性能を向上させることができる。   Further, by forming the inner curved bent portions 28L and 28R and the outer curved bent portions 29L and 29R around the notches 27L and 27R, it is possible to improve the ability to fly the cultivated soil 50 by the tilling claws 20L and 20R. The tillage performance of the tilling claws 20L and 20R can be improved.

また、耕耘爪２０Ｌ・２０Ｒの先端縁部に切欠２７Ｌ・２７Ｒを形成することで、耕耘爪２０Ｌ・２０Ｒの先端縁部に曲げ加工を施して湾曲曲げ部２８Ｌ・２８Ｒ・２９Ｌ・２９Ｒを形成する際に、素材が破断することを防ぐことができ。これにより、耕耘爪２０Ｌ・２０Ｒに対して安定的に湾曲曲げ部２８Ｌ・２８Ｒ・２９Ｌ・２９Ｒを形成して、湾曲曲げ部２８Ｌ・２８Ｒ・２９Ｌ・２９Ｒの曲げ高さ量を稼ぐことが可能となる。   Further, by forming the notches 27L and 27R at the leading edge portions of the tilling claws 20L and 20R, the bending edges 28L, 28R, 29L, and 29R are formed by bending the leading edge portions of the tilling claws 20L and 20R. In this case, the material can be prevented from breaking. Thereby, it is possible to stably form the curved bent portions 28L, 28R, 29L, and 29R with respect to the tilling claws 20L and 20R, and to obtain the bending height amount of the curved bent portions 28L, 28R, 29L, and 29R. Become.

図４（ｂ）及び図７（ｂ）に示すように、耕耘爪２０Ｌ・２０ＲのＰＬ１・ＰＬ２、ＰＲ１・ＰＲ２、ＷＬ１・ＷＬ２、及びＷＲ１・ＷＲ２の大きさは、本実施形態のものに限定されず、作業状況等に応じて適宜変更することが可能である。   As shown in FIGS. 4B and 7B, the sizes of PL1 and PL2, PR1 and PR2, WL1 and WL2, and WR1 and WR2 of the tilling claws 20L and 20R are limited to those of the present embodiment. However, it can be appropriately changed according to the work situation or the like.

図３（ａ）、図３（ｂ）、図６（ａ）、及び図６（ｂ）に示すように、一方の打込み側部分２２Ｌ・２２Ｒの基部には一側湾曲部２２Ｌ'・２２Ｒ'が形成され、他方の打込み側部分２４Ｌ・２４Ｒの基部には他側湾曲部２４'Ｌ・２４'Ｒが形成される。また、一側湾曲部２２Ｌ'・２２Ｒ'の湾曲の程度（曲がり具合）と、他側湾曲部２４'Ｌ・２４'Ｒが互いに異なっている。
これにより、作業者が、耕耘爪２０Ｌ・２０Ｒを管理機１に取り付けるときに、取り付け方向を一側湾曲部２２Ｌ'・２２Ｒ'及び他側湾曲部２４'Ｌ・２４'Ｒに基づいて判断すればよいので、取り付けミスを防げる。 As shown in FIGS. 3 (a), 3 (b), 6 (a), and 6 (b), one-side curved portions 22L ′ and 22R ′ are provided at the base of one of the driving side portions 22L and 22R. The other curved portions 24′L and 24′R are formed at the bases of the other driving side portions 24L and 24R. Further, the degree of bending (bending degree) of the one-side bending portions 22L ′ and 22R ′ and the other-side bending portions 24′L and 24′R are different from each other.
Thereby, when an operator attaches the tilling claws 20L and 20R to the management machine 1, the attachment direction is determined based on the one-side curved portions 22L ′ and 22R ′ and the other-side curved portions 24′L and 24′R. Because it only has to, you can prevent installation mistakes.

なお、耕耘爪２０Ｌ・２０Ｒを左右逆に配置してもよい。すなわち、ミッションケース１１の左側に耕耘爪２０Ｒを配置して、ミッションケース１１の右側に耕耘爪２０Ｌを配置してもよい。
この場合、耕耘爪２０Ｌ・２０Ｒを正回転させることによって、内側湾曲面２３Ｌ・２３Ｒにより耕耘土を外盛側に向かって移動させることとなる。また、耕耘爪２０Ｌ・２０Ｒを逆回転させることによって、外側湾曲面２５Ｌ・２５Ｒにより耕耘土を内盛側に向かって移動させることとなる。 In addition, you may arrange | position the tilling claws 20L and 20R right and left. That is, the tilling claw 20R may be arranged on the left side of the mission case 11 and the tilling claw 20L may be arranged on the right side of the mission case 11.
In this case, by rotating the tilling claws 20L and 20R in the forward direction, the tilling soil is moved toward the outer side by the inner curved surfaces 23L and 23R. Further, by reversely rotating the tilling claws 20L and 20R, the tilled soil is moved toward the inner side by the outer curved surfaces 25L and 25R.

なお、耕耘爪２０Ｌ・２０Ｒ・４０Ｌ・４０Ｒが取り付けられる耕耘作業機は管理機１に限定されず、例えば、トラクタに連結されて牽引されるロータリ耕耘装置であってもよい。   Note that the tilling work machine to which the tilling claws 20L, 20R, 40L, and 40R are attached is not limited to the management machine 1, and may be, for example, a rotary tiller that is connected to a tractor and pulled.

１ 管理機
２０Ｌ・２０Ｒ 耕耘爪
２１Ｌ・２１Ｒ 取付基部
２２Ｌ・２２Ｒ・２４Ｌ・２４Ｒ 打込み側部分
２３Ｌ・２３Ｒ 内側湾曲面
２５Ｌ・２５Ｒ 外側湾曲面
２７Ｌ・２７Ｒ 切欠
２８Ｌ・２８Ｒ 内側湾曲曲げ部
２９Ｌ・２９Ｒ 外側湾曲曲げ部 1 Control Machine 20L / 20R Cultivation Claw 21L / 21R Mounting Base 22L / 22R / 24L / 24R Driving Side Part 23L / 23R Inner Curved Surface 25L / 25R Outer Curved Surface 27L / 27R Notch 28L / 28R Inner Curved Section 29L / 29R Outer Curved bend

Claims (5)

耕耘作業機に取付可能な耕耘爪であって、
前記耕耘作業機に取り付けられた状態で、正回転時の打込み側部分、及び逆回転時の打込み側部分の内の、一方の打込み側部分の内側面には、取付基部側から先端に向かうに伴って前記耕耘作業機の機体の幅方向内側に向かうように湾曲する内側湾曲面が形成され、他方の打込み側部分の外側面には、取付基部側から先端に向かうに伴って前記機体の幅方向外側に向かうように湾曲する外側湾曲面が形成され、
先端縁部には、切欠が形成されることを特徴とする、
耕耘爪。 A tilling claw that can be attached to a tilling work machine,
In the state attached to the tillage work machine, the inner side surface of one driving side portion of the driving side portion at the time of forward rotation and the driving side portion at the time of reverse rotation is directed from the mounting base side toward the tip. Accordingly, an inner curved surface that curves toward the inner side in the width direction of the machine body of the tillage work machine is formed, and the outer surface of the other driving side portion has a width of the machine body as it goes from the attachment base side to the tip. An outer curved surface that is curved so as to be directed outward is formed,
A feature is that a notch is formed in the leading edge,
Tillage claw. 前記切欠により、前記一方の打込み側部分の先端縁部と、前記他方の打込み側部分の先端縁部を分断し、
前記切欠の周辺において、前記一方の打込み側部分の先端縁部を前記機体の幅方向内側に突出させて内側湾曲曲げ部を形成し、前記他方の打込み側部分の先端縁部を前記機体の幅方向外側に突出させて外側湾曲曲げ部を形成することを特徴とする、
請求項１に記載の耕耘爪。 The notch divides the leading edge of the one driving side part and the leading edge of the other driving side part,
In the vicinity of the notch, the leading edge of the one driving side portion protrudes inward in the width direction of the airframe to form an inner curved bent portion, and the leading edge of the other driving side portion is the width of the airframe. Projecting outward in the direction to form an outer curved bend,
The tilling nail according to claim 1. 爪幅方向に平行な断面に関しては、前記一方の打込み側部分の断面が、前記爪幅方向外側に向かうのに伴って前記機体の幅方向外側に離間し、前記他方の打込み側部分の断面が、前記爪幅方向外側に向かうのに伴って前記機体の幅方向内側に離間するねじり形状を有することを特徴とする、
請求項１又は請求項２に記載の耕耘爪。 Regarding the cross section parallel to the claw width direction, the cross section of the one driving side portion is separated to the outside in the width direction of the airframe as it goes outward in the claw width direction, and the cross section of the other driving side portion is , Characterized by having a torsional shape that is spaced inward in the width direction of the airframe as it goes outward in the claw width direction,
The tilling nail according to claim 1 or 2. 前記一方の打込み側部分における前記機体の幅方向外側への最大離間量が、前記他方の打込み側部分における前記機体の幅方向内側への最大離間量よりも小さく、
前記一方の打込み側部分の前記爪幅方向のサイズが、前記他方の打込み側部分の前記爪幅方向のサイズよりも小さいことを特徴とする、
請求項３に記載の耕耘爪。 The maximum distance to the outside in the width direction of the airframe in the one driving side portion is smaller than the maximum distance to the inside in the width direction of the airframe in the other driving side portion,
The size in the claw width direction of the one driving side portion is smaller than the size in the claw width direction of the other driving side portion,
The tilling nail according to claim 3. 前記一方の打込み側部分の基部には一側湾曲部が形成され、前記他方の打込み側部分の基部には他側湾曲部が形成され、前記一側湾曲部の湾曲の程度と、前記他側湾曲部の湾曲の程度が互いに異なることを特徴とする、
請求項１〜請求項４のいずれか一項に記載の耕耘爪。 One side curved portion is formed at the base of the one driving side portion, the other side bending portion is formed at the base of the other driving side portion, the degree of bending of the one side bending portion, and the other side The degree of bending of the bending portion is different from each other,
The tilling nail as described in any one of Claims 1-4.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020005601A (en) * 2018-07-11 2020-01-16 小橋工業株式会社 Method for determining necessity of replacement of tilling claw

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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CN112514557A (en) * 2020-12-01 2021-03-19 赣州久创科技有限公司 Adjustable cutter head assembly for mini-tiller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051901U (en) * 1983-09-19 1985-04-12 セイレイ工業株式会社 Rotary claw for both forward and reverse rotation
JPS6195202U (en) * 1984-11-27 1986-06-19
JP2006262715A (en) * 2005-03-22 2006-10-05 Iseki & Co Ltd Walking type tiller
JP2012060963A (en) * 2010-09-17 2012-03-29 Kubota Corp Rotary tiller

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6066842B2 (en) * 2013-06-20 2017-01-25 ヤンマー株式会社 Tillage nail

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051901U (en) * 1983-09-19 1985-04-12 セイレイ工業株式会社 Rotary claw for both forward and reverse rotation
JPS6195202U (en) * 1984-11-27 1986-06-19
JP2006262715A (en) * 2005-03-22 2006-10-05 Iseki & Co Ltd Walking type tiller
JP2012060963A (en) * 2010-09-17 2012-03-29 Kubota Corp Rotary tiller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020005601A (en) * 2018-07-11 2020-01-16 小橋工業株式会社 Method for determining necessity of replacement of tilling claw
JP7161746B2 (en) 2018-07-11 2022-10-27 小橋工業株式会社 Method and program for determining whether or not to replace tillage tines

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