JPH01285104A - Device of attaching tilling pawl - Google Patents
Device of attaching tilling pawlInfo
- Publication number
- JPH01285104A JPH01285104A JP11278088A JP11278088A JPH01285104A JP H01285104 A JPH01285104 A JP H01285104A JP 11278088 A JP11278088 A JP 11278088A JP 11278088 A JP11278088 A JP 11278088A JP H01285104 A JPH01285104 A JP H01285104A
- Authority
- JP
- Japan
- Prior art keywords
- claw
- holder
- pin
- tilling
- spring plate
- 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.)
- Granted
Links
- 210000000078 claw Anatomy 0.000 claims description 82
- 230000037431 insertion Effects 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 18
- 239000002184 metal Substances 0.000 abstract 3
- 238000003971 tillage Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Soil Working Implements (AREA)
Abstract
Description
本発明は、耕耘軸に設けたホルダに対し、従来一般に使
用されている耕耘爪の取付は基部を、ボルト・ナツトを
用いることなく簡単、容易に着脱できるようにした耕耘
爪取付は装置に関するものである。The present invention relates to a tilling claw attachment device in which the conventionally commonly used tilling claw attachment base can be easily attached and detached from a holder provided on a tillage shaft without using bolts or nuts. It is.
耕耘軸に設けたホルダに対し耕耘爪の取付は基部を着脱
する耕耘爪取付は装置においては、一般に、ホルダおよ
び取付は基部に回転方向と直交する方向に挿通孔を穿設
し、この挿通孔にボルトを挿通してナツトで締付けて固
定するようにしている。ところが、耕耘爪は土中で使用
されるものであり、耕耘爪を交換する際には、ボルト、
ナツトが錆びていたり、また、固く締っな状態であると
その取外しが面倒であり、多くの労力と時間を有する問
題がある。このような問題を解決するために、例えば実
公昭４７−９６０３号公報に開示されているように、耕
耘軸に設けたホルダに耕耘爪の取付は基部を嵌挿し、ホ
ルダおよび耕耘爪に穿設しな挿通孔に爪ピンを挿通し、
この爪ピンをばね板部材で押圧して抜止めするようにし
たものが知られている。To attach the tilling claws to a holder installed on the tilling shaft, the base is attached and removed.In order to attach the tilling claws, generally, an insertion hole is drilled in the base in a direction perpendicular to the direction of rotation, and this insertion hole is used to install the tiller claws. The bolt is inserted into the hole and the nut is tightened to secure it. However, tillage claws are used underground, and when replacing tillage claws, bolts,
If the nut is rusted or tightly tightened, removing it is troublesome and requires a lot of effort and time. In order to solve this problem, for example, as disclosed in Japanese Utility Model Publication No. 47-9603, the tilling claws are attached by fitting the base into a holder provided on the tilling shaft, and drilling holes into the holder and the tilling claws. Insert the claw pin into the sinusoidal insertion hole,
It is known that this claw pin is pressed by a spring plate member to prevent it from coming out.
しかし、上記先行技術のものでは、ばね板部材が平面視
Ｕ字状をしていて爪ピンの両端を押圧する形式のため、
ばね板の弾持力が問題となり、爪とホルダのガタをばね
板全体が吸収するようになるので、完全な固定状態が維
持できず、ばね板部材が外れ易く、ばね板部材が外れる
と爪ピンが抜けて耕耘爪が抜は出るなどの問題点があっ
た。However, in the prior art described above, the spring plate member is U-shaped in plan view and presses both ends of the claw pin.
The elasticity of the spring plate becomes a problem, and the entire spring plate absorbs the play between the claw and the holder, making it impossible to maintain a completely fixed state, making it easy for the spring plate member to come off. There were problems such as the pins coming off and the tiller claws coming out.
本発明は上記の課題を解決すべくなされたもので、上記
ばね板部材は、−１をホルダ側部に枢支して他端側をホ
ルダの側面に沿って所定の範囲で回動可能とし、ばね板
部材の他端側には、爪ピンの頭部に接して押圧する爪ピ
ン押圧部と、爪ピン押圧部から屈曲してホルダの側面を
押圧するホルダ側面押圧部とを形成してなること、また
、上記ばね板部材の爪ピン押圧部に、爪ピン頭部に形成
した係合部と係合する係合部を設けてなることを特徴と
するものである。The present invention has been made to solve the above problems, and the spring plate member -1 is pivotally supported on the side of the holder, and the other end is rotatable within a predetermined range along the side of the holder. The other end of the spring plate member is formed with a claw pin pressing part that contacts and presses the head of the claw pin, and a holder side pressure part that bends from the claw pin pressing part and presses the side surface of the holder. The present invention is also characterized in that the claw pin pressing portion of the spring plate member is provided with an engaging portion that engages with an engaging portion formed on the head of the claw pin.
上記の構成によって本発明の耕耘爪取付は装置は、従来
の耕耘爪を用いてこの耕耘爪をホルダに装着した状態で
は、ばね板部材により爪ピンの頭部を押圧して爪ピンが
ホルダから簡単には外れることなく安全であり、また、
ばね板部材はホルダから外れることがないので紛失する
ことがなく、さらに、ホルダから耕耘爪を取外す際には
ばね板部材を回動させるだけで簡単に外せ、耕耘爪の着
脱操作が簡単に、短時間で行える。With the above-described structure, the tilling claw attachment device of the present invention uses a conventional tilling claw and when the tilling claw is attached to the holder, the spring plate member presses the head of the claw pin and the claw pin is removed from the holder. It is safe and does not come off easily, and
The spring plate member does not come off from the holder, so there is no chance of losing it.Furthermore, when removing the tiller claw from the holder, it can be easily removed by simply rotating the spring plate member, making it easy to attach and remove the tiller claw. It can be done in a short time.
以下、図面を参照して本発明の実施例について説明する
。
第１図において、狩号１はロータリ耕耘装置、あるいは
ロータリ代掻装置の耕耘軸で、この耕耘軸１には放射方
向にホルダ２が固設され、このホルダ２は、耕耘爪３の
取付は基部が着脱可能に取付けられるようになっている
４
ホルダ２は、第２図ないし第４図に詳細に示すように、
基端側を耕耘爪１に対し溶接により固着し、他端側を開
放して爪基部挿入孔２ａを形成し、この爪基部挿入孔２
ａを左右に貫通するようにして一側が六角形、他側がこ
れより小径の円形の爪ピン挿通孔２ｂが形成されている
。この爪ピン挿通孔２ｂには、爪基部挿入孔２ａに耕耘
爪３の基部を挿入した状態で第８図頭、＠に詳細に示す
爪ピン４が挿通されるようになっている。
上記ホルダ２の回転方向（第１図参照）後側上部には、
後述するばね板７の基端部を枢支するばね板支持ｆｒＪ
５が固設され、この支持筒５に、第５図に示す枢支ピン
６を介して第６図および第７図に示すばね板７の挿通孔
７ａが挿通支持され、枢支ピン６は、そのピン孔６ａと
支持筒５に設けたピン孔５ａにピンを挿通して抜止めさ
れている。
ばね板７は、挿通孔７ａを形成した基部側に上記爪ピン
４の頭部を押圧する爪ピン押圧部７Ｃを設け、この押圧
部７Ｃからコ字状に屈曲する屈曲部７ｂを形成して先端
側に爪ピン４の頭部と反対側のホルダ２１１１１面を押
圧するホルダ側面押圧部７ｄを設けている。爪ピン押圧
部７Ｃとホルダ側面押圧部７ｄとは、第１図および第６
図に示すように、側面視で相互にその全部が重複しない
ようにずれている。
このような構成の耕耘爪取付は装置においては、耕耘爪
３をホルダ２に取付けるときは、第１図の仮想線で示す
ようにばね板７を枢支ピン６の中心０を中心にして耕耘
軸１側に回動させ、耕耘爪３の取付は基部を爪基部挿入
孔２ａ内に挿入し、爪ピン挿通孔２ｂに爪ピン４を挿通
させ、ばね板７を第１図の実線で示すように回転させる
と、第２図に示す位置に爪ピン押圧部７Ｃが爪ピン４の
頭部を押圧して抜止めし、ホルダ側面押圧部７ｄがホル
ダ２の側面を押圧した状態となる。また、ばね板７は耕
耘軸１の回転方向に対し後側に位置している。
そして、耕耘軸１を第１図の矢印方向に回転することで
、耕耘爪３は耕耘、または代掻き作業を行う。
耕耘爪３をホルダ２から取外すときは、ばね板７の屈曲
部７ｂに適宜な手段で衝撃を与えてばね板７を耕耘軸１
側に回動させると、爪ピン４の頭部は露出して爪ピン挿
通孔２ｂから爪ピン４を抜脱し、耕耘爪３の取付は基部
を爪基部挿入孔２ａから抜出せばよい、従って、短時間
に、かつ簡単、容易に取外すことができる。
第９図ないし第１１図に示すように、ばね板８に挿通孔
８ａ、爪ピン押圧部８ｃ、屈曲部８ｂのほか、爪ピン押
圧部８Ｃに係合凸部８ｅを形成し、この保合凸部８ｅを
、爪ピン９の頭部に形成した係合凹部９ａに係合するよ
うにしてもよい。
この場合には、係合凸部８ｅと係合凹部９ａの係合によ
って、爪ピン押圧部８Ｃにより爪ピン９頭部の押圧がよ
り確実に行われる。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the number 1 is a tilling shaft of a rotary tilling device or a rotary plowing device, and a holder 2 is fixed to the tilling shaft 1 in the radial direction. As shown in detail in FIGS. 2 to 4, the 4 holder 2, whose base is removably attached,
The base end side is fixed to the tilling claw 1 by welding, and the other end side is opened to form a claw base insertion hole 2a.
A pawl pin insertion hole 2b is formed in a hexagonal shape on one side and a circular shape with a smaller diameter on the other side so as to pass through a from side to side. A claw pin 4 shown in detail at @ at the top of Figure 8 is inserted into the claw pin insertion hole 2b with the base of the tilling claw 3 inserted into the claw base insertion hole 2a. At the upper rear side of the holder 2 in the rotational direction (see Figure 1),
Spring plate support frJ that pivotally supports the base end of the spring plate 7, which will be described later.
5 is fixedly installed, and the insertion hole 7a of the spring plate 7 shown in FIGS. 6 and 7 is inserted into and supported by the support cylinder 5 via the pivot pin 6 shown in FIG. A pin is inserted into the pin hole 6a and the pin hole 5a provided in the support tube 5 to prevent it from coming out. The spring plate 7 is provided with a claw pin pressing part 7C that presses the head of the claw pin 4 on the base side in which the insertion hole 7a is formed, and a bent part 7b that is bent in a U-shape is formed from this pressing part 7C. A holder side pressing portion 7d is provided on the tip side to press the surface of the holder 21111 opposite to the head of the claw pin 4. The claw pin pressing part 7C and the holder side pressing part 7d are shown in FIGS. 1 and 6.
As shown in the figure, they are offset from each other so that they do not overlap each other when viewed from the side. In the apparatus for attaching the tilling claws with such a configuration, when attaching the tilling claws 3 to the holder 2, the spring plate 7 is centered on the center 0 of the pivot pin 6, as shown by the imaginary line in FIG. Rotate it to the shaft 1 side, and install the tilling claw 3 by inserting the base into the claw base insertion hole 2a, inserting the claw pin 4 into the claw pin insertion hole 2b, and inserting the spring plate 7 as shown by the solid line in FIG. When rotated as shown in FIG. 2, the claw pin pressing portion 7C presses the head of the claw pin 4 to prevent it from coming out, and the holder side surface pressing portion 7d presses the side surface of the holder 2. Further, the spring plate 7 is located on the rear side with respect to the rotational direction of the tilling shaft 1. By rotating the tilling shaft 1 in the direction of the arrow in FIG. 1, the tilling claws 3 perform tilling or plowing work. When removing the tilling claw 3 from the holder 2, apply an impact to the bent portion 7b of the spring plate 7 by an appropriate means, and move the spring plate 7 to the tilling shaft 1.
When rotated to the side, the head of the claw pin 4 is exposed and the claw pin 4 can be removed from the claw pin insertion hole 2b, and the tilling claw 3 can be attached by removing the base from the claw base insertion hole 2a. , can be easily removed in a short time. As shown in FIGS. 9 to 11, in addition to an insertion hole 8a, a claw pin pressing part 8c, and a bent part 8b in the spring plate 8, an engaging convex part 8e is formed in the claw pin pressing part 8C. The protrusion 8e may be engaged with an engagement recess 9a formed in the head of the claw pin 9. In this case, the engagement between the engagement protrusion 8e and the engagement recess 9a allows the claw pin pressing portion 8C to press the head of the claw pin 9 more reliably.
以上説明したように、本発明の耕耘爪取付は装置によれ
ば、ばね板部材の一端をホルダに枢支したので、ばね板
部材がホルダから外れることがなく、紛失するおそれが
ないばかりでなくばね板部材の弾持効果を確実にする。
従って、爪ピンの抜止めを確実にし、安全な作業が行え
、また、ホルダに対する耕耘爪の着脱が容易に行える。
まな、ばね板部材は、爪ピンの頭部と、これと反対側の
ホルダ側面を押圧するので、耕耘爪とホルダのガタつき
に影響されることなく爪ピンを押圧し、その抜止め、ひ
いては耕耘爪の抜出しを確実に防止できる。
さらに、ばね板部材と爪ピンの頭部に係合部を形成した
ので、ばね板部材の爪ピン押圧、抜出し防止がより確実
に行われる。As explained above, according to the tilling claw attachment device of the present invention, one end of the spring plate member is pivoted to the holder, so the spring plate member does not come off from the holder, and there is no risk of it being lost. To ensure the elasticity effect of a spring plate member. Therefore, it is possible to ensure that the claw pins are not removed, allowing safe work to be performed, and the tilling claws can be easily attached to and removed from the holder. The spring plate member presses the head of the claw pin and the opposite side of the holder, so it presses the claw pin without being affected by the rattling between the tiller claw and the holder, and prevents it from coming out. It is possible to reliably prevent the tiller claws from coming out. Furthermore, since the engaging portion is formed on the spring plate member and the head of the claw pin, the spring plate member is more reliably pressed against the claw pin and prevented from being pulled out.
第１図は本発明の耕耘爪取付は装置全体の側面図、第２
図はホルダおよびばね板部材の平面図、第３図はホルダ
の部分切断側面図、第４図は同平面図、第５図は枢支ピ
ンの側面図、第６図はばね板部材の側面図、第７１図は
同平面図、第８図は爪ピンの側面図に）、同正面図Ｏ）
、第９図はばね板部材の他の実施例の側面図、第１０図
は同側面図、第１１図は爪ピンの他の実施例の側面図（
へ）、同正面図に）である。
１・・・耕耘軸、２・・・ホルダ、２ａ・・・爪基部挿
入孔、２ｂ・・・爪ピン挿通孔、３・・・耕耘爪、４．
９・・・爪ピン、９ａ・・・係合凹部、５・・・ばね板
支持筒、５ａ・・・ピン孔、６・・・枢支ピン、６ａ・
・・ピン孔、７，８・・・ばね板、７ａ。
８ａ・・・挿浦孔、７ｂ、 ８ｂ・・・屈曲部、７ｃ、
８ｃ・・・爪ピン押圧部、７ｄ、 ８ｄ・・・ホルダ
側面押圧部、８ｅ・・・係合凸部。
特許出願人 小嬌工業株式会社
代理人 弁理士 小 橘 信 浮
量 弁理士 村 井 進
第１図
第２図
第３図
第４図
第５図Figure 1 is a side view of the entire tilling claw installation device of the present invention, Figure 2 is a side view of the entire device.
The figure is a plan view of the holder and the spring plate member, Fig. 3 is a partially cutaway side view of the holder, Fig. 4 is the same plan view, Fig. 5 is a side view of the pivot pin, and Fig. 6 is a side view of the spring plate member. Figure 71 is the same plan view, Figure 8 is the side view of the claw pin), and the same front view O)
, FIG. 9 is a side view of another embodiment of the spring plate member, FIG. 10 is a side view of the same, and FIG. 11 is a side view of another embodiment of the claw pin (
), and in the same front view). 1... Tilling shaft, 2... Holder, 2a... Claw base insertion hole, 2b... Claw pin insertion hole, 3... Tilling claw, 4.
9... Claw pin, 9a... Engaging recess, 5... Spring plate support tube, 5a... Pin hole, 6... Pivotal pin, 6a...
...Pin hole, 7, 8...Spring plate, 7a. 8a...insertion hole, 7b, 8b...bending part, 7c,
8c... Claw pin pressing part, 7d, 8d... Holder side pressing part, 8e... Engaging convex part. Patent applicant Kogyo Kogyo Co., Ltd. Agent Patent attorney Nobuo Ko Tachibana Ukasa Patent attorney Susumu Murai Figure 1 Figure 2 Figure 3 Figure 4 Figure 5
Claims (2)
挿し、ホルダおよび耕耘爪に穿設した挿通孔に爪ピンを
挿通し、この爪ピンをばね板部材で押圧して抜止めする
ようにした耕耘爪取付け装置において、 上記ばね板部材は、一端をホルダ側部に枢支して他端側
をホルダの側面に沿って所定の範囲で回動可能とし、 ばね板部材の他端側には、爪ピンの頭部に接して押圧す
る爪ピン押圧部と、爪ピン押圧部から屈曲してホルダの
側面を押圧するホルダ側面押圧部とを形成してなる耕耘
爪取付け装置。(1) Fit the mounting base of the tilling claw into the holder provided on the tilling shaft, insert the claw pin into the insertion hole drilled in the holder and the tilling claw, and press the claw pin with the spring plate member to prevent it from coming out. In the tilling claw attachment device, the spring plate member has one end pivotally supported on the side of the holder, the other end being rotatable within a predetermined range along the side of the holder, and the other end of the spring plate member A tilling claw attachment device formed by forming on the side a claw pin pressing part that contacts and presses the head of the claw pin, and a holder side pressure part that bends from the claw pin pressing part and presses the side surface of the holder.
形成した係合部と係合する係合部を設けてなる耕耘爪取
付け装置。(2) A tilling pawl attachment device in which the pawl pin pressing portion of the spring plate member is provided with an engaging portion that engages with an engaging portion formed on the pawl pin head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63112780A JP2694136B2 (en) | 1988-05-10 | 1988-05-10 | Tillage claw mounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63112780A JP2694136B2 (en) | 1988-05-10 | 1988-05-10 | Tillage claw mounting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01285104A true JPH01285104A (en) | 1989-11-16 |
| JP2694136B2 JP2694136B2 (en) | 1997-12-24 |
Family
ID=14595311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63112780A Expired - Fee Related JP2694136B2 (en) | 1988-05-10 | 1988-05-10 | Tillage claw mounting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2694136B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02238802A (en) * | 1989-03-13 | 1990-09-21 | Kubota Ltd | Fitting device of tilling claw |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63140804U (en) * | 1987-03-06 | 1988-09-16 |
-
1988
- 1988-05-10 JP JP63112780A patent/JP2694136B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63140804U (en) * | 1987-03-06 | 1988-09-16 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02238802A (en) * | 1989-03-13 | 1990-09-21 | Kubota Ltd | Fitting device of tilling claw |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2694136B2 (en) | 1997-12-24 |
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