JP2877654B2 - Tiller mounting device - Google Patents
Tiller mounting deviceInfo
- Publication number
- JP2877654B2 JP2877654B2 JP5074468A JP7446893A JP2877654B2 JP 2877654 B2 JP2877654 B2 JP 2877654B2 JP 5074468 A JP5074468 A JP 5074468A JP 7446893 A JP7446893 A JP 7446893A JP 2877654 B2 JP2877654 B2 JP 2877654B2
- Authority
- JP
- Japan
- Prior art keywords
- engagement
- shaft
- piece
- claw
- groove
- 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
Links
Landscapes
- Soil Working Implements (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、ロータリ耕耘機に使用
される耕耘爪の取付装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilling claw mounting device used for a rotary tilling machine.
【0002】[0002]
【従来の技術】ロータリ耕耘機にあっては、爪軸に固定
した筒状の爪取付ブラケットに耕耘爪の基部を挿入し、
該爪取付ブラケットに耕耘爪を着脱自在に取付けるよう
にしたものがある。そして、この耕耘爪を爪取付ブラケ
ットにボルト・ナットによって固定したのでは、着脱に
時間がかかり面倒であるため、弾性板材からなる固定具
によって耕耘爪を固定するようにしたものが特開平1−
218502号公報に開示されている。2. Description of the Related Art In a rotary tiller, a base of a tillage claw is inserted into a cylindrical claw mounting bracket fixed to a claw shaft.
There is one in which a tilling nail is detachably attached to the nail mounting bracket. Fixing the tilling nail to the nail mounting bracket with a bolt and a nut is time-consuming and troublesome, and the tilling nail is fixed by a fixture made of an elastic plate material.
No. 218502.
【0003】このものは、爪取付ブラケットの一対の対
向壁および耕耘爪の基部に、頭部が耕耘爪に接当すると
共に先端側が一方の対向壁から突出するように挿通され
る取付軸を有し、この取付軸の先端側には係止部が設け
られている。一方、固定具は、爪取付ブラケットの一方
の対向壁の反対向側面に位置される係合片を有し、この
係合片には、取付軸の係止部が挿脱可能な挿脱孔と、取
付軸の係止部と一方の対向壁との間の係合軸部が挿脱孔
から軸方向に直交する方向に挿入可能な係合溝が形成さ
れていて、係合片を、係合軸部が係合溝に挿入されるよ
うに、爪軸回転方向前方から後方に向けて打込み移動さ
せることで、係合溝の両側縁部が係止部と一方の対向壁
との間に弾性的に係合して、弾性力によって係止部を一
方の対向壁から離反する方向に付勢できるように該係合
片が弯曲形成されている。This device has a pair of opposed walls of a nail mounting bracket and a base of the tilling nail, and has a mounting shaft that is inserted so that the head comes into contact with the tilling nail and the tip side projects from one of the opposite walls. A locking portion is provided on the tip end side of the mounting shaft. On the other hand, the fixture has an engaging piece located on the opposite side of one of the opposing walls of the claw mounting bracket, and the engaging piece has an insertion / removal hole through which the locking portion of the mounting shaft can be inserted / removed. And, an engagement groove between the engagement portion of the attachment shaft and one of the opposing walls is formed so that the engagement groove can be inserted from the insertion / removal hole in a direction orthogonal to the axial direction. By driving the claws in the claw shaft rotation direction from the front to the rear so that the engagement shafts are inserted into the engagement grooves, both side edges of the engagement grooves are located between the locking portion and one of the opposing walls. The engagement piece is curved so that the engagement portion can be elastically engaged with the engagement portion so as to bias the locking portion away from one of the opposing walls by an elastic force.
【0004】また、前記構成に加えて係合片に、爪取付
ブラケットの爪軸回転方向後方側に接当する接当部を備
えた抜止片が一つ設けられていて、固定具の爪取付ブラ
ケットからの離脱防止が図られているものがある。[0004] In addition to the above configuration, the engaging piece is provided with one retaining piece having a contact portion that comes into contact with the claw mounting bracket on the rear side in the claw shaft rotation direction, and the claw mounting of the fixing tool is provided. Some of them are designed to prevent detachment from the bracket.
【0005】[0005]
【発明が解決しようとする課題】前記抜止片は、固定具
の打込み移動時に弾性変形し、打込み終了時に復帰し
て、接当部が爪取付ブラケットの爪軸回転方向後方側に
接当するものであって、固定具の打込み時(および離脱
時)において抵抗となるものであり、しかも、従来の抜
止片は弾性変形しにくいものであるから、接当部の爪取
付ブラケットに対する係合は浅いものであった。そし
て、接当部の爪取付ブラケットに対する係合が浅いと、
固定具の抜け防止に対する信頼性が低くなるものであ
る。 The retaining piece is provided with a fixing device.
Elastically deforms at the time of driving and returns when driving is completed.
And the contact part is on the rear side in the claw shaft rotation direction of the claw mounting bracket.
Abut when the fastener is driven (and
At the time), and the conventional
Since the stopper is hard to be elastically deformed,
The engagement with the attached bracket was shallow. Soshi
Therefore, if the engagement of the contact portion with the claw mounting bracket is shallow,
This will reduce the reliability of preventing the fixture from coming off.
You.
【0006】ところで、ロータリ耕耘機に通常使用され
るなた爪は同一湾曲方向の耕耘爪を相当数連続して取付
けると振動等の原因となることから、湾曲方向の異なる
耕耘爪を適宜組み合わせて取付けられている。そして、
右側へ湾曲された耕耘爪と左側へ湾曲された耕耘爪とで
は、取付軸の挿通方向が逆向きとされ、従って、係合片
の爪取付ブラケット対向壁に添設する位置が逆となり、
このため、固定具は、右向き湾曲状の耕耘爪用と左向き
湾曲状の耕耘爪用との2種類形成されていた。[0006] By the way, the saw claws usually used in rotary tillers may cause vibrations and the like if a considerable number of till claws in the same bending direction are attached in succession. Installed. And
In the cultivating claw curved to the right and the cultivating claw curved to the left, the insertion direction of the mounting shaft is reversed, and accordingly, the position of the engaging piece attached to the claw mounting bracket facing wall is reversed.
For this reason, two types of fixtures were formed, one for a right-curved tilling claw and one for a left-curved tilling claw.
【0007】また、耕耘時に、固定具が取付軸の軸心廻
りにガタ付くという問題もあった。そこで、本発明は、
係合片の抜け防止に対する信頼性を高めると共に、耕耘
爪の湾曲方向に関わらず同一の係合片を使用できるよう
にすると共に、係合片の取付軸廻りのガタ付き防止を図
ることを目的とする。There is also a problem that the fixture loosens around the axis of the mounting shaft during tilling. Therefore, the present invention
The object is to improve the reliability of preventing the engagement piece from coming off , to enable the same engagement piece to be used regardless of the bending direction of the tilling claw, and to prevent rattling around the mounting axis of the engagement piece. And
【0008】[0008]
【課題を解決するための手段】本発明が、前記目的を達
成するために講じた技術的手段は、爪軸7に、軸心方向
に対向配置された一対の対向壁12,13を設け、これ
ら対向壁12,13とその間に挿入された耕耘爪9の基
部とに挿通される頭付取付軸17を備えると共に、弾性
板材で形成されていて、一方の対向壁12から突出する
取付軸17の係合軸部21に交差状に係合する係合溝2
7が形成された係合片22を備え、取付軸17の係合軸
部21が係合溝27に挿入するように係合片22を移動
させることで、取付軸17の頭部18と一方の対向壁1
2とで耕耘爪9の基部を挟持固定するように構成し、係
合片22に、一方の対向壁12の、係合片22移動方向
前 端側に接当して係合する接当部30を備えていて係合
片22の一方の対向壁12からの抜け止めをする抜止片
29を設けた耕耘爪の取付装置において、前記係合片2
2に、係合溝27に沿うように、且つ係合溝27に直交
する方向から見て該係合溝27にラップするように、係
合片22移動方向前端から後方に向けてスリット28を
形成することで前記抜止片29を形成した点にある。 A solution for the present invention, technical means taken to achieve the object, the nail shaft 7, the axial direction
Is provided with a pair of opposed walls 12 and 13 which are opposed to each other.
From the opposing walls 12, 13 and the tilling claw 9 inserted between them
With a mounting shaft 17 with a head inserted through the
It is formed of a plate material and protrudes from one of the opposing walls 12.
The engagement groove 2 which engages with the engagement shaft portion 21 of the mounting shaft 17 in a cross shape.
7 is provided with an engagement piece 22 formed thereon, and an engagement shaft of the mounting shaft 17 is provided.
The engaging piece 22 is moved so that the portion 21 is inserted into the engaging groove 27.
By doing so, the head 18 of the mounting shaft 17 and one of the opposed walls 1
2 so that the base of the tilling claw 9 is pinched and fixed.
The moving direction of the engaging piece 22 of the one opposing wall 12 to the mating piece 22
Engagement comprise a contact portion 30 which engages in brought into contact with front end side
In the tilling claw mounting device provided with a retaining piece 29 for preventing the piece 22 from coming off from the one opposing wall 12 , the engaging piece 2
2, along the engaging groove 27 and perpendicular to the engaging groove 27
So as to wrap in the engaging groove 27 when viewed from the
A slit 28 is formed from the front end of the mating piece 22 in the moving direction to the rear.
The point lies in that the retaining piece 29 is formed by forming.
【0009】また、前記構成に加えて、スリット28
を、係合片22の移動完了位置における係合軸部21か
ら、さらに係合片22移動方向後方に延びるように形成
するのがよい。また、前記構成に加えて、スリット28
を、係合溝27を境として一対設けるのがよい。 Further, in addition to the above configuration, the slit 28
Between the engagement shaft 21 at the movement completion position of the engagement piece 22
Formed so as to extend further in the moving direction of the engagement piece 22
Good to do . Further, in addition to the above configuration, the slit 28
Is preferably provided in a pair with the engaging groove 27 as a boundary.
【0010】また、前記構成に加えて、係合溝27の、
係合軸部21を挿入する挿入口と、係合片22の移動完
了位置での係合軸部21との間の、係合溝27の溝幅
を、係合軸部21の径よりも小なる幅狭に形成し、スリ
ット28を、係合溝27を境とした線対称位置に一対設
けるのがよい。 Further, in addition to the above configuration, the engagement groove 27
The insertion opening for inserting the engagement shaft portion 21 and the movement of the engagement piece 22 are completed.
Width of the engagement groove 27 between the engagement shaft portion 21 at the end position
Is formed to be narrower than the diameter of the engagement shaft portion 21,
A pair of the sockets 28 are provided at line-symmetric positions with the engagement groove 27 as a boundary.
It is better to start.
【0011】[0011]
【作用】耕耘爪を爪取付ブラケットに取付けるには、先
ず耕耘爪の基部を爪取付ブラケットの対向壁間に挿入
し、両対向壁および耕耘爪の基部に取付軸を挿通させ
る。次に、固定具の係合片を爪取付ブラケットの一方の
対向壁の反対向側面に位置させ、この状態で、係合片
を、取付軸の係合軸部が係合溝に挿入されるように爪軸
回転方向前方から後方に移動させる。In order to attach the tilling nail to the nail mounting bracket, first, the base of the tilling nail is inserted between the opposing walls of the nail mounting bracket, and the mounting shaft is inserted through both opposing walls and the base of the tilling nail. Next, the engaging piece of the fixing tool is positioned on the opposite side of one of the opposing walls of the claw mounting bracket, and in this state, the engaging piece is inserted into the engaging groove of the mounting shaft of the mounting shaft. In the claw shaft rotation direction from the front to the rear.
【0012】すると、係合溝の両側縁部が係止部と一方
の対向壁との間に弾性的に係合してその弾性力によって
係止部を一方の対向壁から離反する方向に付勢し、これ
によって、取付軸の頭部と爪取付ブラケットの一方の対
向壁とで耕耘爪の基部が挟持状に固定される。また、係
合溝を境とした線対称位置に一対設けられた抜止片の接
当部が、爪取付ブラケットの爪軸回転方向後方側に接当
して、係合片の爪取付ブラケットからの抜止めがなされ
ると共に、係合片の取付軸廻りのガタ防止が図られてい
る。Then, both side edges of the engaging groove are elastically engaged between the engaging portion and the one opposing wall, and the elastic force is applied to move the engaging portion away from the one opposing wall. By virtue of this, the base of the tilling nail is fixed in a sandwiching manner by the head of the mounting shaft and one of the opposing walls of the nail mounting bracket. Further, the contact portions of the pair of retaining pieces provided at a line symmetrical position with respect to the engagement groove contact the rear side in the claw axis rotation direction of the claw mounting bracket, and the engaging piece is disengaged from the claw mounting bracket. The retaining piece is prevented, and play of the engagement piece around the mounting shaft is prevented.
【0013】そして、湾曲方向の異なる耕耘爪を固定す
る場合には、取付軸は逆方向に挿通されるように構成さ
れ、従って、固定具の係合片の配置位置も逆になるよう
に爪取付ブラケットに係合されるが、抜止片は係合溝を
境とした線対称位置に設けられていることから、逆にし
て爪取付ブラケットに係合しても何ら支障はない。When fixing tilling nails having different bending directions, the mounting shaft is configured to be inserted in the opposite direction, so that the positions of the engaging pieces of the fixture are also reversed. Although the retaining piece is engaged with the mounting bracket, since the retaining piece is provided at a line symmetrical position with the engaging groove as a boundary, there is no problem even if the retaining piece is reversed and engaged with the claw mounting bracket.
【0014】[0014]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図6において、1はトラクタの後部に三点リンク
機構を介して昇降自在に装着されるロータリ耕耘機であ
る。このロータリ耕耘機1の機枠2は、中央のギヤケー
ス3から左右にサポートアーム4を突設し、一方のサポ
ートアーム4外端にサイドフレーム5を固定し、他方の
サポートアーム4外端にチェーンケース6を固定して門
型に主構成されている。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 6, reference numeral 1 denotes a rotary cultivator mounted on the rear of the tractor via a three-point link mechanism so as to be able to move up and down. The machine frame 2 of the rotary cultivator 1 has a support arm 4 projecting left and right from a central gear case 3, a side frame 5 fixed to an outer end of one support arm 4, and a chain attached to an outer end of the other support arm 4. The main structure is a gate type with the case 6 fixed.
【0015】サイドフレーム5とチエーンケース6との
下部間には爪軸7が左右方向の軸心廻り回転自在に支架
され、この爪軸7上に爪取付ブラケット8を介して多数
の耕耘爪9が一端から他端に亘って取付けられ、これに
よって耕耘部10が構成されている。そして、トラクタ
のPTO軸の動力が、入力軸11からギヤケース3、サ
ポートアーム4およびチェーンケース6にそれぞれ内蔵
したギヤ、チェーン等の伝動機構を介して爪軸7に伝達
されて、該爪軸9が矢示A方向に回動駆動されるように
なっている。A claw shaft 7 is supported between the lower portion of the side frame 5 and the chain case 6 so as to be rotatable around a left-right axis, and a plurality of tilling claws 9 are mounted on the claw shaft 7 via a claw mounting bracket 8. Is attached from one end to the other end, and thereby the tilling unit 10 is configured. Then, the power of the PTO shaft of the tractor is transmitted from the input shaft 11 to the pawl shaft 7 via transmission mechanisms such as gears and chains built into the gear case 3, the support arm 4, and the chain case 6, respectively. Are driven to rotate in the direction of arrow A.
【0016】前記耕耘爪9はなた爪からなり、湾曲方向
の異なる耕耘爪9を適宜組み合わせて配列されている。
爪取付ブラケット8は、図1乃至図4に示すように、有
底の四角筒状に形成されていて、爪軸7に径方向外方突
出状に固着されている。そして、この爪取付ブラケット
8内には耕耘爪9の基部が挿入される。また、爪取付ブ
ラケット8の爪軸心方向で対向する一対の対向壁12,
13の一方の対向壁12には円形の挿通孔14が形成さ
れ、他方の対向壁13には六角形の嵌合孔15が形成さ
れ、耕耘爪9の基部には円形の貫通孔16が形成されて
いる。これら、挿通孔14、嵌合孔15および貫通孔1
6に取付軸17が挿通嵌合されており、この取付軸17
によって耕耘爪9が抜止めされている。The tilling claws 9 are made of sawn claws, and are arranged by appropriately combining the tilling claws 9 having different bending directions.
As shown in FIGS. 1 to 4, the claw mounting bracket 8 is formed in a rectangular tube with a bottom, and is fixed to the claw shaft 7 so as to protrude radially outward. The base of the tilling nail 9 is inserted into the nail mounting bracket 8. In addition, a pair of opposing walls 12, which oppose each other in the claw axis direction of the claw mounting bracket 8,
13, a circular insertion hole 14 is formed in one opposing wall 12, a hexagonal fitting hole 15 is formed in the other opposing wall 13, and a circular through hole 16 is formed at the base of the tilling claw 9. Have been. These insertion hole 14, fitting hole 15 and through hole 1
6, a mounting shaft 17 is inserted and fitted.
As a result, the tilling nail 9 is retained.
【0017】取付軸17の軸方向一端側には嵌合孔15
に相対回動不能に嵌合する六角形の頭部18を有し、こ
の頭部18の頂部18aは他方の対向壁13から突出し
ている。取付軸17の先端側は一方の対向壁12から突
出しており、この突出部分には、周方向の溝を形成する
ことで、先端部に係止部19が形成されると共に、取付
軸17の突出部分の、係止部19と一方の対向壁12と
の間が係合軸部20とされている。A fitting hole 15 is provided at one end of the mounting shaft 17 in the axial direction.
The head 18 has a hexagonal head 18 that is fitted to the head 18 so that the head 18 cannot rotate relative thereto. The distal end side of the mounting shaft 17 protrudes from one of the opposing walls 12, and a circumferential groove is formed in this protruding portion, so that a locking portion 19 is formed at the distal end, and the mounting shaft 17 An engagement shaft portion 20 is formed between the engagement portion 19 and one of the opposing walls 12 of the protruding portion.
【0018】爪取付ブラケット8には取付軸17に係合
して、これの抜止めをする固定具21が外嵌されてい
る。この固定具21はバネ鋼等の弾性を有する板材から
なり、一方の対向壁12の反対向側面(外面)側に位置
される係合片22と、他方の対向壁13の反対向側面
(外面)側に位置される押圧片23と、両者22,23
を連結する背壁24とから断面コ字形に折曲形成されて
いる。A fixture 21 which engages with the mounting shaft 17 to prevent the nail from being removed is fitted on the claw mounting bracket 8. The fixing member 21 is made of an elastic plate material such as spring steel, and has an engagement piece 22 located on the opposite side (outer surface) of the opposite wall 12 and an opposite side (outer surface) of the other opposite wall 13. ) Side, and both 22, 23
And a back wall 24 connecting the two to form a U-shaped cross section.
【0019】押圧片23の先端側には取付軸17の頭部
18に接当する接当部25が形成され、係合片22の先
端側には、取付軸17の係止部19が軸方向に挿通可能
な円形の挿脱孔26が形成されると共に、この挿脱孔2
6から背壁24に向けて、取付軸17の係合軸部20が
軸方向に直交する方向に挿入可能で且つ係止部19が軸
方向挿通不能な係合溝27が形成されている。この係合
溝27は、挿入側部分及び溝奥部分の溝幅が、係合軸部
20の直径より若干大とされた広幅に形成され、挿入側
部分と溝奥部分との間の溝幅が、係合軸部20の直径よ
り若干小とされた狭幅に形成されている。A contact portion 25 for contacting the head 18 of the mounting shaft 17 is formed on the distal end of the pressing piece 23, and a locking portion 19 of the mounting shaft 17 is provided on the distal end of the engaging piece 22. A circular insertion / removal hole 26 that can be inserted in the direction is formed.
An engagement groove 27 is formed from 6 toward the back wall 24 so that the engagement shaft portion 20 of the mounting shaft 17 can be inserted in a direction orthogonal to the axial direction and the locking portion 19 cannot be inserted in the axial direction. The engaging groove 27 is formed so that the groove width of the insertion side portion and the groove depth portion is slightly larger than the diameter of the engagement shaft portion 20, and the groove width between the insertion side portion and the groove depth portion. Are formed in a narrow width slightly smaller than the diameter of the engagement shaft portion 20.
【0020】また、係合片22の係合溝27長手方向に
直交する方向の両端部には、背壁24から係合片22先
端に向けて開放状のスリット28を前記係合溝27に沿
って形成することで、抜止片29が設けられている。こ
れら抜止片29は係合溝27を境とした線対称位置に設
けられており、各抜止片29の先端側には押圧片23側
に向けて折曲されて爪取付ブラケット8の爪軸7回転方
向A後方側の外面に接当する接当部30を備えている。At both ends of the engaging piece 22 in the direction orthogonal to the longitudinal direction of the engaging groove 27, an open slit 28 is formed in the engaging groove 27 from the back wall 24 toward the tip of the engaging piece 22. The retaining piece 29 is provided by being formed along. These retaining pieces 29 are provided at line symmetrical positions with the engaging groove 27 as a boundary, and the distal end side of each retaining piece 29 is bent toward the pressing piece 23 side to form the pawl shaft 7 of the pawl mounting bracket 8. The contact portion 30 is provided to contact the outer surface on the rear side in the rotation direction A.
【0021】さらに、係合片22の抜止片29間の、係
合溝27長手方向中央側は一方の対向壁12から離反す
る方向に弯曲形成されている。また、背壁24には、外
方に向けて突出状の突出部31が一端から他端に亘って
形成されている。前記構成において、固定具21を爪取
付ブラケット8に嵌合させて、耕耘爪9を取付固定する
には、図5に仮想線で示すように、固定具21の背壁2
4を爪取付ブラケット8の爪軸7回転方向A前方側に位
置させて、係合片22の挿脱孔26を取付軸17の係止
部19に対応させると共に挿脱孔26に係止部19を挿
通状として係合片22を一方の対向壁12に添接させ
る。この状態から、図5に実線で示すように、固定具2
1を爪軸7回転方向Aと反対方向に移動させて、取付軸
17の係合軸部20を係合溝27の入口部分に挿入状と
すると共に、押圧片23を外方に拡開させてその接当部
25を取付軸17の頭部18に接当させる。The longitudinal center of the engaging groove 27 between the retaining pieces 29 of the engaging piece 22 is curved in a direction away from one of the opposing walls 12. The back wall 24 has a protruding portion 31 projecting outward from one end to the other end. In the above configuration, in order to fit the fixing tool 21 to the claw mounting bracket 8 and mount and fix the tilling claw 9, as shown by a virtual line in FIG.
4 is positioned forward of the claw shaft 7 in the rotation direction A of the claw mounting bracket 8 so that the insertion / removal hole 26 of the engaging piece 22 corresponds to the locking portion 19 of the mounting shaft 17 and the locking portion is inserted into the insertion / removal hole 26. The engagement piece 22 is brought into contact with one of the opposing walls 12 with the insertion shape 19. From this state, as shown by the solid line in FIG.
1 is moved in the direction opposite to the rotation direction A of the claw shaft 7 so that the engaging shaft portion 20 of the mounting shaft 17 is inserted into the entrance portion of the engaging groove 27 and the pressing piece 23 is expanded outward. The contact portion 25 contacts the head 18 of the mounting shaft 17.
【0022】次に、前記状態から、背壁24をハンマー
等で打撃して固定具21を爪軸回転方向Aと反対方向に
移動させることによって、係合片22が係止部19と一
方の対向壁12との間で弾性変形し、その弾性力により
係止部19が一方の対向壁12から離反する方向に付勢
されると共に、取付軸17の頭部18は押圧片23の弾
性力によって耕耘爪9の基部に押圧され、これらによっ
て、取付軸17の頭部18と爪取付ブラケット8の一方
の対向壁12とで耕耘爪9の基部が挟持状に固定され
る。Next, from the state described above, the fixing piece 21 is moved in a direction opposite to the claw shaft rotation direction A by hitting the back wall 24 with a hammer or the like, so that the engagement piece 22 is in contact with the locking portion 19. It is elastically deformed between the opposing wall 12, and the elastic force urges the locking portion 19 in a direction away from the one opposing wall 12, and the head 18 of the mounting shaft 17 applies the elastic force of the pressing piece 23. Thus, the base of the tilling claw 9 is pressed by the head 18 of the mounting shaft 17 and the one opposing wall 12 of the claw mounting bracket 8 so as to be clamped.
【0023】また、抜止片29の接当部30は、爪取付
ブラケット8の爪軸7回転方向A後方側の外面に接当し
て、固定具21の爪取付ブラケット8からの離脱を阻止
すると共に、固定具21の取付軸17軸心廻りのガタを
防止している。また、前記のものとは湾曲方向の異なる
耕耘爪9を固定する場合には、取付軸17は図例とは逆
方向に挿通されるように構成され、従って、固定具21
は係合片22と押圧片23との位置が図例とは逆になる
ように爪取付ブラケット8に嵌合されるが、抜止片29
は係合溝27を境とした線対称位置に設けられているこ
とから、逆にして爪取付ブラケット8に嵌合しても何ら
支障はない。The contact portion 30 of the retaining piece 29 contacts the outer surface of the claw mounting bracket 8 on the rear side in the rotation direction A of the claw shaft 7 to prevent the fixing tool 21 from being detached from the claw mounting bracket 8. At the same time, the play around the axis of the mounting shaft 17 of the fixture 21 is prevented. Further, when fixing the tilling claw 9 having a different bending direction from that of the above, the mounting shaft 17 is configured to be inserted in the opposite direction to the illustrated example.
Is engaged with the claw mounting bracket 8 such that the positions of the engaging piece 22 and the pressing piece 23 are opposite to those in the illustrated example.
Is provided at a line symmetrical position with respect to the engagement groove 27, so that there is no problem even if the hook is fitted to the claw mounting bracket 8 in reverse.
【0024】前記固定具21を打込む際、背壁24の突
出部31を目印として打撃され、これによって打撃位置
が明確になるという効果を奏する。なお、図2に示すよ
うに、係合片22の耕耘爪9固定位置において、係合片
22の頂部22aは係止部19の爪軸回転方向A後方側
に位置し、係合片22の先端側は一方の対向壁12の外
面より内方に位置していて、これらによっても、固定具
21の抜け方向への移動を規制している。When the fixing tool 21 is driven, it is hit with the protrusion 31 of the back wall 24 as a mark, thereby providing an effect that the hitting position becomes clear. As shown in FIG. 2, at the position where the engaging piece 22 is fixed to the tilling claw 9, the top 22 a of the engaging piece 22 is located behind the locking part 19 in the claw axis rotating direction A, and The distal end side is located more inward than the outer surface of one of the opposing walls 12, and also regulates the movement of the fixture 21 in the removal direction.
【0025】[0025]
【発明の効果】本発明によれば、係合片22に、係合溝
27に沿うように、且つ係合溝27に直交する方向から
見て該係合溝27にラップするように、係合片22移動
方向前端から後方に向けてスリット28を形成すること
で前記抜止片29を形成することにより、抜止片29の
弾性変形が容易となって、係合片22の着脱が容易とな
ると共に、抜止片29の弾性変形が容易となるので、抜
止片29の接当部30を、一方の対向壁12の係合片2
2移動方向前端側へ、深く係合させることができ、係合
片22の一方の対向壁12からの抜け防止に対する信頼
性を高めることができる。 According to the present invention, the engaging piece 22 is provided with the engaging groove.
27 and from a direction perpendicular to the engaging groove 27.
The engaging piece 22 moves so as to wrap around the engaging groove 27 when viewed.
Forming the slit 28 from the front end to the rear in the direction
By forming the retaining piece 29 with
Elastic deformation is facilitated, and attachment / detachment of the engagement piece 22 is facilitated.
At the same time, the elastic deformation of the retaining piece 29 is facilitated.
The contact portion 30 of the stop piece 29 is connected to the engagement piece 2 of the one opposing wall 12.
2 It can be engaged deeply to the front end side in the movement direction.
Reliance on preventing piece 22 from coming off one of opposing walls 12
Can be enhanced.
【0026】また、スリット28を、係合溝27を境と
して一対設けることにより、耕耘爪の湾曲方向に関わら
ず同一の固定具を使用できると共に、固定具の取付軸廻
りのガタ付き防止を図ることができる。また、係合溝2
7の、係合軸部21を挿入する挿入口と、係合片22の
移動完了位置での係合軸部21との間の、係合溝27の
溝幅を、係合軸部21の径より も小なる幅狭に形成する
ことにより、係合軸部21は係合溝27の幅狭部分を通
らないと該係合溝27から相対的に抜けないので、係合
片22の一方の対向壁12からの抜け防止を確実に図る
ことができると共に、スリット28を、係合溝27を境
とした線対称位置に一対設けることにより、係合軸部2
1が係合溝27の幅狭部分を通過する際の弾性変形がし
易くなる。 Further , the slit 28 is formed with the engagement groove 27 as a boundary.
By providing a pair, the same fixing tool can be used regardless of the bending direction of the tilling claw, and play around the mounting axis of the fixing tool can be prevented. In addition, the engagement groove 2
7, an insertion opening for inserting the engagement shaft portion 21,
Of the engagement groove 27 between the engagement shaft portion 21 at the movement completion position.
The groove width is formed to be smaller than the diameter of the engagement shaft portion 21.
As a result, the engaging shaft 21 passes through the narrow portion of the engaging groove 27.
Otherwise, it will not come out of the engagement groove 27 relatively,
The piece 22 is reliably prevented from coming off from one of the opposing walls 12.
And the slit 28 is separated from the engagement groove 27.
By providing a pair at a line symmetrical position, the engagement shaft 2
The elastic deformation occurs when 1 passes through the narrow portion of the engagement groove 27.
It will be easier.
【図1】全体側面図である。FIG. 1 is an overall side view.
【図2】図1の平面断面図である。FIG. 2 is a plan sectional view of FIG.
【図3】爪取付ブラケットに装着していない状態の固定
具の平面図である。FIG. 3 is a plan view of the fixture not attached to the claw mounting bracket.
【図4】背面断面図である。FIG. 4 is a rear sectional view.
【図5】固定具の嵌合動作を示す平面断面図である。FIG. 5 is a cross-sectional plan view showing the fitting operation of the fixture.
【図6】耕耘機の全体側面図である。FIG. 6 is an overall side view of the cultivator.
7 爪軸 8 爪取付ブラケット 9 耕耘爪 12 対向壁 13 対向壁 17 取付軸 18 頭部 19 係止部 20 係合軸部 21 固定具 22 係合片 27 係合溝 29 抜止片 30 接当部 7 Claw Shaft 8 Claw Mounting Bracket 9 Tilling Claw 12 Opposed Wall 13 Opposed Wall 17 Mounting Shaft 18 Head 19 Locking Part 20 Engagement Shaft Part 21 Fixture 22 Engagement Piece 27 Engagement Groove 29 Stopping Piece 30 Contact Part
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 平4−52401(JP,U) (58)調査した分野(Int.Cl.6,DB名) A01B 33/10 - 33/14 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-52401 (JP, U) (58) Fields surveyed (Int. Cl. 6 , DB name) A01B 33/10-33/14
Claims (4)
た一対の対向壁(12),(13)を設け、これら対向
壁(12),(13)とその間に挿入された耕耘爪
(9)の基部とに挿通される頭付取付軸(17)を備え
ると共に、弾性板材で形成されていて、一方の対向壁
(12)から突出する取付軸(17)の係合軸部(2
1)に交差状に係合する係合溝(27)が形成された係
合片(22)を備え、取付軸(17)の係合軸部(2
1)が係合溝(27)に挿入するように係合片(22)
を移動させることで、取付軸(17)の頭部(18)と
一方の対向壁(12)とで耕耘爪(9)の基部を挟持固
定するように構成し、係合片(22)に、一方の対向壁
(12)の、係合片(22)移動方向前端側に接当して
係合する接当部(30)を備えていて係合片(22)の
一方の対向壁(12)からの抜け止めをする抜止片(2
9)を設けた耕耘爪の取付装置において、 前記係合片(22)に、係合溝(27)に沿うように、
且つ係合溝(27)に直交する方向から見て該係合溝
(27)にラップするように、係合片(22)移動方向
前端から後方に向けてスリット(28)を形成すること
で前記抜止片(29)を形成したことを特徴とする耕耘
爪の取付装置。1. A claw shaft (7), which is disposed so as to face in the axial direction.
A pair of opposed walls (12) and (13)
Walls (12), (13) and tilling nail inserted between them
A mounting shaft (17) with a head is inserted through the base of (9).
And an opposing wall made of elastic plate material
The engagement shaft (2) of the mounting shaft (17) protruding from (12).
1) An engagement groove in which an engagement groove (27) engaging in a cross shape is formed.
A mating piece (22) is provided, and the engaging shaft (2) of the mounting shaft (17) is provided.
The engagement piece (22) is inserted so that 1) is inserted into the engagement groove (27).
By moving the head (18) of the mounting shaft (17)
Hold the base of the tilling claw (9) with one of the opposing walls (12).
The engaging piece (22) is provided on one of the opposing walls.
(12) is brought into contact with the front end of the engagement piece (22) in the movement direction.
An engagement portion (30) for engaging is provided, and the engagement piece (22)
A retaining piece (2 ) for retaining from one opposing wall (12)
9) In the tilling claw mounting device provided with 9), the engaging piece (22) is formed along the engaging groove (27).
And the engagement groove viewed from a direction orthogonal to the engagement groove (27).
(27) The direction of movement of the engagement piece (22) so as to wrap around
Forming a slit (28) from the front end to the rear
A tilling claw mounting device characterized in that the retaining piece (29) is formed by the above method.
移動完了位置における係合軸部(21)から、さらに係
合片(22)移動方向後方に延びるように形成したこと
を特徴とする請求項1に記載の耕耘爪の取付装置。2. A slit (28) is formed in the engagement piece (22).
From the engagement shaft (21) at the movement completion position,
The piece (22) is formed so as to extend backward in the moving direction.
The tilling claw attachment device according to claim 1, wherein:
境として一対設けたことを特徴とする請求項1または2
に記載の耕耘爪の取付装置。 3. A slit (28) and an engagement groove (27)
A pair is provided as a boundary.
A mounting device for a tillage claw according to item 1.
挿入する挿入口と、係合片(22)の移動完了位置での
係合軸部(21)との間の、係合溝(27)の溝幅を、
係合軸部(21)の径よりも小なる幅狭に形成し、スリ
ット(28)を、係合溝(27)を境とした線対称位置
に一対設けたことを特徴とする請求項1、2または3に
記載の耕耘爪の取付装置。 4. The engagement shaft (21) of the engagement groove (27) is
Between the insertion opening to be inserted and the movement completion position of the engagement piece (22).
The groove width of the engagement groove (27) between the engagement shaft (21) and
The engagement shaft (21) is formed to have a width smaller than the diameter of the engagement shaft (21).
(28) at a line symmetrical position with respect to the engagement groove (27).
4. The method according to claim 1, wherein
The mounting device of the tilling nail as described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5074468A JP2877654B2 (en) | 1993-03-31 | 1993-03-31 | Tiller mounting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5074468A JP2877654B2 (en) | 1993-03-31 | 1993-03-31 | Tiller mounting device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06276801A JPH06276801A (en) | 1994-10-04 |
JP2877654B2 true JP2877654B2 (en) | 1999-03-31 |
Family
ID=13548122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5074468A Expired - Fee Related JP2877654B2 (en) | 1993-03-31 | 1993-03-31 | Tiller mounting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2877654B2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0452401U (en) * | 1990-09-11 | 1992-05-01 |
-
1993
- 1993-03-31 JP JP5074468A patent/JP2877654B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06276801A (en) | 1994-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2877654B2 (en) | Tiller mounting device | |
JPH06335302A (en) | Device for attaching tilling tine | |
JPH076727Y2 (en) | Tiller mounting device | |
JP2793998B2 (en) | Tillage claw mounting device | |
JP2721623B2 (en) | Tiller mounting device | |
JP2509720Y2 (en) | Tiller mounting device | |
JPH09285203A (en) | Tilling claw fitting device | |
JP2793999B2 (en) | Tillage claw mounting device | |
JPH078008A (en) | Apparatus for attaching tilling tine | |
JP3569350B2 (en) | Tilling rotary work machine | |
JPH0742242Y2 (en) | Tiller mounting device | |
JP2594640Y2 (en) | Hose clamp | |
JP3333175B2 (en) | Tiller mounting device | |
JP2631908B2 (en) | Tillage claw mounting device | |
JPS6322801Y2 (en) | ||
JP2005245216A (en) | Mounting structure for tilling tine | |
JPS6031446Y2 (en) | Tilling claw attachment device | |
JP2555592Y2 (en) | Bolt type connector | |
JPH0729764Y2 (en) | Tiller mounting device | |
JP2514223B2 (en) | Tiller mounting device | |
JP2541605B2 (en) | Support structure for tillage nails | |
JP4331068B2 (en) | Tillage work equipment | |
JP3199324B2 (en) | Drive method of multiple working machine | |
JPH0723605A (en) | Fixing device for tilling claw | |
JPH10262405A (en) | Constituting for holding tilling paw |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |