JP2550652Y2 - Tillage claw mounting device - Google Patents
Tillage claw mounting deviceInfo
- Publication number
- JP2550652Y2 JP2550652Y2 JP9359991U JP9359991U JP2550652Y2 JP 2550652 Y2 JP2550652 Y2 JP 2550652Y2 JP 9359991 U JP9359991 U JP 9359991U JP 9359991 U JP9359991 U JP 9359991U JP 2550652 Y2 JP2550652 Y2 JP 2550652Y2
- Authority
- JP
- Japan
- Prior art keywords
- pin
- tilling
- mounting base
- holder
- retaining ring
- 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)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、耕耘軸に固設したホル
ダに対し耕耘爪の取付け基部をピンを介して抜止め装着
し、耕耘爪が耕耘抵抗を受けて取付け基部がピンを中心
にして前後に回動すると、弾性体と接触して固定され、
ホルダと面接触するようにした耕耘爪取付け装置におけ
るピン抜止め用リングに関するものである。In the present invention, the mounting base of the tilling claw is fixed to the holder fixed to the tilling shaft via a pin so that the tilling claw receives the tilling resistance and the mounting base is centered on the pin. When it rotates back and forth, it comes into contact with the elastic body and is fixed,
The present invention relates to a pin retaining ring in a tilling claw mounting device that comes into surface contact with a holder.
【０００２】[0002]
【従来の技術】従来、耕耘軸に固設したホルダに耕耘爪
を取付けるときは、ホルダに耕耘爪の取付け基部を嵌挿
し、ホルダ及び耕耘爪の取付け基部に穿設したボルト挿
通孔にボルトを挿通してナットで締め付け固定してい
た。ところが、耕耘爪は土中で使用されるものであり、
摩耗や折損を生じたときに交換することになるが、ボル
ト及びナットが錆びていたり、また、固く締め付けられ
た状態であると取外しが面倒であり、多くの時間と労力
を要している。このような問題を解決するために、耕耘
軸に固設したホルダに耕耘爪の取付け基部を嵌挿し、ホ
ルダ及び耕耘爪の取付け基部に穿設したピン挿通孔に、
ピンを挿通して耕耘爪の取付け基部を抜け止めして使用
するようにした装置が、例えば実開昭６３−１７４６０
５号公報、実開昭６４−１１６０７号公報、実開昭６４
−１３９０２号公報、実開平１−７２００２号公報等に
より開示されている。2. Description of the Related Art Conventionally, when a tilling nail is attached to a holder fixed to a tilling shaft, a mounting base of the tilling nail is inserted into the holder, and a bolt is inserted into a bolt insertion hole drilled in the holder and the mounting base of the tilling nail. It was inserted and tightened with nuts. However, tilling nails are used in the soil,
When the bolts and nuts are worn or broken, they need to be replaced. However, if the bolts and nuts are rusted or firmly tightened, removal is troublesome, and much time and labor is required. In order to solve such a problem, the mounting base of the tilling claw is inserted into a holder fixed to the tilling shaft, and the pin insertion hole formed in the mounting base of the holder and the tilling claw is
A device in which a pin is inserted to prevent the mounting base of the tilling claw from coming off is used, for example, Japanese Utility Model Application Laid-Open No. 63-17460.
No. 5, JP-A-64-11607, JP-A-64
No. 13902, Japanese Utility Model Laid-Open No. 1-72002, and the like.
【０００３】[0003]
【考案が解決しようとする課題】上記各先行技術のもの
では、ホルダ及び耕耘爪の取付け基部に穿設したピン挿
通孔にピンを挿通して耕耘爪の取付け基部を抜け止めし
て使用するには、ピンのピン挿通孔に対する挿脱が容易
で、しかも使用中にピンが抜け出さないようにする抜止
め手段が、着脱操作が簡単に，かつ確実に行われる必要
があるが、その構成が複雑であったり、操作性や確実性
に欠け、また、雑草や藁稈等が絡み付く等の問題点があ
った。本考案は、上記の問題点を解決することを目的に
なされたものである。In each of the above prior arts, a pin is inserted through a pin insertion hole formed in a holder and a mounting base of a tilling claw to prevent the mounting base of the tilling claw from coming off. It is necessary that the retaining means for easily inserting and removing the pin from the pin insertion hole and for preventing the pin from coming out during use should be easily and reliably attached and detached, but the configuration is complicated. There were problems such as lack of operability and certainty, and weeds, straw culms and the like were entangled. The present invention has been made to solve the above problems.
【０００４】[0004]
【課題を解決するための手段】上記の目的を達成するた
めに本考案は、耕耘軸に固設したホルダに耕耘爪の取付
け基部を嵌挿し、ホルダ及び耕耘爪の取付け基部に穿設
したピン挿通孔に、ピンを挿通して耕耘爪の取付け基部
を抜け止めして使用するようにした耕耘爪取付け装置に
おいて、上記ピンの先端部に、周方向に係合溝を形成す
ると共に、この係合溝に弾性線材からなるピン抜止め用
リングを係脱可能に設け、上記ピン抜止め用リングは、
平面形状において外周がほぼ円形をなし、円形外周部の
一部に屈曲口を形成し、この屈曲口の両側から円形外周
部内に同心状に入り込んで両先端が自由端となり、ピン
の係合溝に対し両側から弾性的に係脱する一対の係合部
を、外周部と一体的に形成したことを特徴とする。SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a mounting base of a tilling claw is inserted into a holder fixed to a tilling shaft, and a pin pierced into a mounting base of the holder and the tilling claw. In a tilling claw mounting device that is used by inserting a pin into an insertion hole to prevent the tilling claw mounting base from coming off, an engaging groove is formed in a tip end portion of the pin in a circumferential direction. A pin retaining ring made of an elastic wire is provided detachably in the mating groove, and the pin retaining ring is
The outer periphery is substantially circular in a planar shape, and a curved opening is formed in a part of the circular outer periphery. Both ends are concentrically inserted into the circular outer periphery from both sides of the curved opening, and both ends become free ends, and the pin engagement groove is formed. A pair of engaging portions which are elastically engaged and disengaged from both sides are formed integrally with the outer peripheral portion.
【０００５】[0005]
【作用】上記の構成により本考案の耕耘爪取付け装置
は、ピン抜止め用リングのピン対する係脱操作が容易に
行え、ピンの抜止めが確実に行われる。また、ピン抜止
め用リングはピンの係合溝の幅内に収まり、かつ突起部
分がないので、ホルダ及び耕耘爪が回転するとき外力の
影響を受け難く、また雑草や藁稈等が絡み付くことがな
い。さらに、ピンの抜け出し方向に掛かる力を、ピン抜
止め用リングの円形外周部で広く分散して受けるので、
ピン抜止め用リング及びピンに耐久性がある。According to the above configuration, the tilling claw mounting device of the present invention can easily engage and disengage the pin from the pin retaining ring, and the pin can be securely retained. In addition, since the pin retaining ring fits within the width of the pin engaging groove and has no projection, it is hardly affected by external force when the holder and the tilling claw rotate, and weeds and straw stems are entangled. There is no. Furthermore, since the force applied in the direction in which the pin comes out is widely dispersed and received at the circular outer periphery of the pin retaining ring,
Pin retaining ring and pin are durable.
【０００６】[0006]
【実施例】以下、本考案の一実施例を添付の図面を参照
して具体的に説明する。図１及び図２において、符号１
は耕耘爪取付け装置で、この耕耘爪取付け装置１は、耕
耘軸２にホルダ３を固設した従来周知のものと同様のも
のである。ホルダ３はその幅が従来のものよりやや大き
く形成され、その空間４内には断面形状が長方形をした
耕耘爪の取付け基部５が、ホルダ３の内面と所定の間隙
を有して嵌挿される。ホルダ３及び耕耘爪の取付け基部
５にはピン挿通孔６が穿設され、このピン挿通孔６にピ
ン９を挿通して、ピン９をピン抜止め用リング１０で抜
止めし、耕耘爪の取付け基部５がホルダ３から抜け出さ
ないようにして使用される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the accompanying drawings. 1 and FIG.
Is a tilling claw mounting device, and this tilling claw mounting device 1 is the same as a conventionally well-known device in which a holder 3 is fixed to a tilling shaft 2. The holder 3 has a width slightly larger than that of the conventional one, and a mounting base 5 of a tilling claw having a rectangular cross section is inserted into the space 4 with a predetermined gap with the inner surface of the holder 3. . A pin insertion hole 6 is formed in the holder 3 and the mounting base 5 of the tilling claw. The pin 9 is inserted through the pin insertion hole 6, and the pin 9 is prevented from being removed with a pin retaining ring 10. The mounting base 5 is used so as not to come out of the holder 3.
【０００７】上記ホルダ３内の耕耘爪の取付け基部５の
側方に位置して、耕耘爪の取付け基部５が耕耘爪の耕耘
抵抗によりピン挿通孔６を中心に前後に回動したとき、
その側面と弾性接触して押圧固定するバネ板７が設けら
れている。このバネ板７は、ホルダの空間４の幅及び長
さとほぼ等しい大きさを有し、図２に示すように、上下
両端部が耕耘爪の取付け基部５に接近し、中間部がホル
ダ３の内面と当接するように膨出している。このバネ板
７にも、ホルダ３及び耕耘爪の取付け基部５と同様のピ
ン挿通孔６が穿設されている。また、ホルダ３内には、
回動した耕耘爪の取付け基部５に掛かるラジアル荷重を
面接触で受けるテーパ状の面当接部８が形成されてい
る。この面当接部８は、ホルダ３と一体的に形成しても
よく、あるいは別体に形成して、ネジ等で固定し、交換
可能にしてもよいものである。When the mounting base 5 of the cultivating claw is positioned on the side of the mounting base 5 of the cultivating claw in the holder 3 and pivots back and forth around the pin insertion hole 6 due to the cultivation resistance of the cultivating claw,
A spring plate 7 is provided for elastically contacting and pressing and fixing the side surface. The spring plate 7 has a size substantially equal to the width and the length of the space 4 of the holder, and as shown in FIG. It bulges out so as to be in contact with the inner surface. This spring plate 7 is also provided with the same pin insertion hole 6 as the holder 3 and the mounting base 5 for the tilling nail. In the holder 3,
A tapered surface contact portion 8 that receives a radial load applied to the mounted base 5 of the rotated tillage claw by surface contact is formed. The surface contact portion 8 may be formed integrally with the holder 3 or may be formed separately, fixed with screws or the like, and made replaceable.
【０００８】上記ピン９は、図２及び図４に示すよう
に、一端に頭部９ａを形成し、その他端のピン先端部
に、周方向に係合溝９ｂを形成すると共に、この係合溝
９ｂに弾性線材からなるピン抜止め用リング１０が係脱
可能に設けられる。ピン抜止め用リング１０は、図２、
図３及び図４に示すように、鋼線により、平面形状にお
いて外周がほぼ円形をなす円形外周部１０ａの一部に屈
曲口１０ｂを形成し、この屈曲口１０ｂの両側から円形
外周部１０ａ内に同心状に入り込んで両先端が自由端と
なり、ピンの係合溝９ｂに対し両側から弾性的に係脱す
る一対の係合部１０ｃ，１０ｃを、外周部１０ａと一体
的に形成したものである。As shown in FIGS. 2 and 4, the pin 9 has a head 9a at one end and an engaging groove 9b at the other end of the pin in the circumferential direction. A pin retaining ring 10 made of an elastic wire is detachably provided in the groove 9b. The pin retaining ring 10 is shown in FIG.
As shown in FIGS. 3 and 4, a bent portion 10 b is formed in a part of a circular outer peripheral portion 10 a having a substantially circular outer periphery in a planar shape by a steel wire, and the inside of the circular outer peripheral portion 10 a is formed from both sides of the bent portion 10 b. And a pair of engaging portions 10c, 10c which are concentrically inserted into each other and both ends become free ends, and are elastically engaged with and disengaged from both sides with respect to the engaging groove 9b of the pin. is there.
【０００９】このように構成された一実施例の耕耘爪取
付け装置においては、ホルダの空間４内に耕耘爪の取付
け基部５を、図１の仮想線で示すようにまっすぐ嵌挿
し、また、バネ板７を耕耘爪の取付け基部５に沿って嵌
挿して、ピン挿通孔６にピン９を挿通し、ピン抜止め用
リング１０を、その屈曲口１０ｂから、あるいは係合部
１０ｃ，１０ｃから、ピンの係合溝９ｂに係合させて抜
け止めする。そして、耕耘軸２が矢印方向に回転して耕
耘爪により耕耘作業を行うと、その耕耘抵抗により耕耘
爪の取付け基部５は、ピン９を中心にα度回転し、図１
の実線で示すように、面当接部８のテーパ面と当接する
位置で係止される。In the tilling claw mounting device of one embodiment constructed as described above, the tilling claw mounting base 5 is inserted straight into the holder space 4 as shown by the imaginary line in FIG. The plate 7 is inserted along the mounting base 5 of the tilling claw, the pin 9 is inserted into the pin insertion hole 6, and the pin retaining ring 10 is inserted from the bent opening 10b or from the engaging portions 10c, 10c. The pin is engaged with the engaging groove 9b to prevent the pin from coming off. When the tilling shaft 2 rotates in the direction of the arrow and performs tilling work with the tilling nail, the mounting base 5 of the tilling nail rotates α degrees about the pin 9 due to the tilling resistance, and FIG.
As shown by the solid line in FIG.
【００１０】このとき、耕耘爪の取付け基部５の側面に
対しバネ板７が弾性接触し、また、面当接部８のテーパ
面と当接して耕耘爪の取付け基部５をホルダ３内に固定
し、この状態で耕耘作業が継続される。耕耘爪をホルダ
３から取り外すときは、耕耘爪をハンマー状のもので回
転方向と反対方向に叩いて取付け基部５を図１の仮想線
で示すようにまっすぐにし、ピン抜止め用リング１０を
ピンの係合溝９ｂから離脱させ、ピン９をピン挿通孔６
から抜き取ることにより、耕耘爪をホルダ３から取り外
して新しい耕耘爪と交換することが出来る。At this time, the spring plate 7 elastically contacts the side surface of the mounting base 5 of the tilling claw, and the mounting base 5 of the tilling claw is fixed in the holder 3 by abutting against the tapered surface of the surface contact portion 8. Then, the tillage work is continued in this state. When removing the tilling nail from the holder 3, the tilling nail is hit with a hammer-shaped object in the direction opposite to the rotation direction to straighten the mounting base 5 as shown by the imaginary line in FIG. Of the pin 9 into the pin insertion hole 6.
By removing the tilling nail from the holder 3, the tilling nail can be removed from the holder 3 and replaced with a new tilling nail.
【００１１】上記のように耕耘爪の取付け基部５がピン
９を中心に前後に回動したときに、その側面がバネ板７
と接触して押圧され、また、面当接部８のテーパ面と当
接して固定されているから、ホルダ３内で耕耘爪の取付
け基部５がガタつくことがなく、ホルダ３及び耕耘爪の
取付け基部５を損傷させない。従って、従来のようなボ
ルト・ナットを用いることなく耕耘爪をホルダ３に固定
することができる。また、耕耘作業中に耕耘爪に掛かる
衝撃荷重はバネ板７によって吸収され、面当接部８のテ
ーパ面との当接で耕耘爪の切損が防止される。さらに、
取付け基部５の断面形状が長方形をなす耕耘爪が使用可
能なので、既存の耕耘爪をボルト・ナットにより締め付
けることなく使用できる。耕耘軸２が正逆何れの方向に
回転しても、取付け基部５はピンを中心に前後に回動し
て、その側面がバネ板７と接触して押圧され、面当接部
８のテーパ面と当接して固定されるから、正逆回転耕耘
爪を使用するのに好適である。When the mounting base 5 of the tilling claw rotates back and forth about the pin 9 as described above, the side
And is fixed in contact with the tapered surface of the surface contact portion 8, so that the mounting base 5 of the tilling claw does not rattle in the holder 3, and The mounting base 5 is not damaged. Therefore, the tillage claw can be fixed to the holder 3 without using a conventional bolt and nut. Further, the impact load applied to the tilling claw during the tilling operation is absorbed by the spring plate 7, and the tilling claw is prevented from being cut by contact with the tapered surface of the surface contact portion 8. further,
Since a tilling claw having a rectangular cross section of the mounting base 5 can be used, the existing tilling claw can be used without being tightened with bolts and nuts. Regardless of whether the tilling shaft 2 rotates in the forward or reverse direction, the mounting base 5 rotates back and forth around the pin, and the side surface thereof is pressed against the spring plate 7, and the taper of the surface contact portion 8 is pressed. Since it is fixed by contacting with the surface, it is suitable to use a forward and reverse rotation tillage claw.
【００１２】また、ピン抜止め用リング１０は、ピンの
係合溝９ｂに対し、屈曲口１０ｂ部分、あるいは係合部
１０ｃ，１０ｃ部分から容易に係脱することが出来ると
共に、ピン９に抜け出し方向の力が掛った場合に、その
力を円形外周部１０ａで広く分散して受けるので、ピン
９の抜止めが確実に行われ、ピン抜止め用リング１０自
体及びピン９の耐久性が向上する。さらに、ピン抜止め
用リング１０はピンの係合溝９ａの幅内に収まってお
り、かつ外周が円形状で突起部分がないので、ホルダ３
及び耕耘爪５が回転するとき外力の影響を受け難く、ま
た、雑草や藁稈等が絡み付くこともない。Further, the pin retaining ring 10 can be easily disengaged from the bent groove 10b or the engaging portions 10c, 10c with respect to the pin engaging groove 9b, and can be disengaged from the pin 9. When a force in the direction is applied, the force is widely dispersed and received by the circular outer peripheral portion 10a, so that the pin 9 is reliably prevented from being removed, and the durability of the pin retaining ring 10 itself and the pin 9 is improved. I do. Further, the pin retaining ring 10 fits within the width of the pin engaging groove 9a, and has a circular outer periphery and no projection, so that the holder 3
When the tilling claw 5 rotates, it is hardly affected by an external force, and weeds, straw culms and the like do not become entangled.
【００１３】[0013]
【考案の効果】以上説明したように本考案の耕耘爪取付
け装置によれば、以下の効果を奏することが出来る。 ピン抜止め用リングは、ピンの係合溝に対する係脱
操作が容易に行え、ピンの抜止めが確実に行われる。 また、ピン抜止め用リングは、その厚みがピンの係
合溝の幅内に収まっており、かつ突起部分がないので、
ホルダ及び耕耘爪が回転するときに外力の影響を受け難
く、また雑草や藁稈等が絡み付かない。 さらに、ピン抜止め用リングは、ピンの抜け出し方
向に掛かる力をピン抜止め用リングの円形外周部で広く
分散して受けるので、ピン抜止め用リング自体及びピン
の損傷が少なくなり、耐久性を向上させる。 ピン抜止め用リングはその外形が大きいため、紛失
の恐れがない。[Effects of the Invention] As described above, according to the tilling claw mounting device of the present invention, the following effects can be obtained. The pin retaining ring can easily engage and disengage the pin from the engagement groove, and the pin can be reliably retained. Also, since the pin retaining ring has a thickness within the width of the pin engaging groove and has no projection,
When the holder and the tilling claw rotate, they are hardly affected by external force, and weeds, straw culms and the like do not become entangled. In addition, the pin retaining ring receives the force acting in the direction in which the pin comes out in a widely distributed manner at the circular outer periphery of the pin retaining ring, so that the pin retaining ring itself and the pins are less damaged, and the durability is reduced. Improve. Since the pin retaining ring has a large outer shape, there is no risk of loss.
【図１】本考案による耕耘爪の取付け装置で、図１のＡ
−Ａ線断面図である。FIG. 1 shows a device for mounting a tilling nail according to the present invention.
FIG. 4 is a cross-sectional view taken along a line A.
【図２】ホルダの端面図である。FIG. 2 is an end view of a holder.
【図３】ピン抜止め用リングの平面図である。FIG. 3 is a plan view of a pin retaining ring.
【図４】ピンにピン抜止め用リングを係合させた状態の
斜視図である。FIG. 4 is a perspective view showing a state in which a pin retaining ring is engaged with the pin.
１ 耕耘爪取付け装置 ２ 耕耘軸 ３ ホルダ ４ ホルダの空間 ５ 耕耘爪の取付け基部 ６ ピン挿通孔 ７ バネ板 ８ 面当接部 ９ ピン ９ａ 頭部 ９ｂ 係合溝 １０ ピン抜止め用リング １０ａ 円形外周部 １０
ｂ 屈曲口 １０ｃ係合部REFERENCE SIGNS LIST 1 cultivator claw mounting device 2 cultivator shaft 3 holder 4 holder space 5 cultivator claw mounting base 6 pin insertion hole 7 spring plate 8 surface contact portion 9 pin 9a head 9b engagement groove 10 pin retaining ring 10a circular outer periphery Part 10
b Bending port 10c engaging part
Claims (1)
け基部を嵌挿し、ホルダ及び耕耘爪の取付け基部に穿設
したピン挿通孔に、ピンを挿通して耕耘爪の取付け基部
を抜け止めして使用するようにした耕耘爪取付け装置に
おいて、 上記ピンの先端部に、周方向に係合溝を形成すると共
に、この係合溝に弾性線材からなるピン抜止め用リング
を係脱可能に設け、 上記ピン抜止め用リングは、平面形状において外周がほ
ぼ円形をなし、円形外周部の一部に屈曲口を形成し、こ
の屈曲口の両側から円形外周部内に同心状に入り込んで
両先端が自由端となり、ピンの係合溝に対し両側から弾
性的に係脱する一対の係合部を、外周部と一体的に形成
したことを特徴とする耕耘爪取付け装置。1. A tilling nail mounting base is inserted into a holder fixed to a tilling shaft, and a pin is inserted into a pin insertion hole formed in the holder and the tilling nail mounting base, so that the tilling nail mounting base is removed. In the tilling claw mounting device which is to be used after being stopped, an engaging groove is formed in a tip end portion of the pin in a circumferential direction, and a pin retaining ring made of an elastic wire can be disengaged from the engaging groove. In the pin retaining ring, the outer periphery is substantially circular in a planar shape, a bent portion is formed in a part of the circular outer portion, and concentrically enters the circular outer portion from both sides of the bent portion to form both ends. A tilling claw mounting device, characterized in that a pair of engaging portions, each having a free end and elastically engaging and disengaging from both sides with respect to an engaging groove of a pin, are formed integrally with an outer peripheral portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9359991U JP2550652Y2 (en) | 1991-10-21 | 1991-10-21 | Tillage claw mounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9359991U JP2550652Y2 (en) | 1991-10-21 | 1991-10-21 | Tillage claw mounting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0537002U JPH0537002U (en) | 1993-05-21 |
| JP2550652Y2 true JP2550652Y2 (en) | 1997-10-15 |
Family
ID=14086785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9359991U Expired - Fee Related JP2550652Y2 (en) | 1991-10-21 | 1991-10-21 | Tillage claw mounting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2550652Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114793533A (en) * | 2022-05-25 | 2022-07-29 | 甘肃省祁连山水源涵养林研究院 | Method for improving emergence rate of seedlings of sabina przewalskii seeds |
-
1991
- 1991-10-21 JP JP9359991U patent/JP2550652Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0537002U (en) | 1993-05-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |