JPH0621299Y2 - Operation rod fixing device for brush cutter - Google Patents
Operation rod fixing device for brush cutterInfo
- Publication number
- JPH0621299Y2 JPH0621299Y2 JP3841689U JP3841689U JPH0621299Y2 JP H0621299 Y2 JPH0621299 Y2 JP H0621299Y2 JP 3841689 U JP3841689 U JP 3841689U JP 3841689 U JP3841689 U JP 3841689U JP H0621299 Y2 JPH0621299 Y2 JP H0621299Y2
- Authority
- JP
- Japan
- Prior art keywords
- operating rod
- cushioning material
- fitting
- tightening
- operation rod
- 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 - Lifetime
Links
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- Harvester Elements (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、刈払機に使用される比較的小型の空冷２サイ
クル内燃機関等の原動機に連結される操作桿の固定装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a fixing device for an operating rod connected to a prime mover such as a relatively small air-cooled two-cycle internal combustion engine used in a brush cutter.
［従来の技術］ 従来、草刈り等に使用される刈払機は、駆動装置である
空冷２サイクル内燃機関等の原動機から延長された伝動
軸と、該伝動軸を内蔵した操作桿と、それらの先端に回
転自在に設けられた刈刃によって構成され、作業者が機
体の原動機部付近を肩から吊下げ、操作桿と該操作桿と
略直角方向に設けた操作ハンドルを手にもって先端の刈
刃部分を揺動させて草刈り等を行なう様に構成されるの
が一般的であった。[Prior Art] Conventionally, a brush cutter used for mowing or the like has a transmission shaft extended from a prime mover such as an air-cooled two-cycle internal combustion engine, which is a drive device, an operating rod having the transmission shaft built therein, and tips thereof. It is composed of a cutting blade that is rotatably mounted on the blade, and an operator hangs the vicinity of the prime mover part of the machine from his shoulder, and holds the operating rod and the operating handle that is provided in a direction substantially perpendicular to the operating rod in his hand. It was generally configured to swing a part to mow or the like.
この時、前記原動機部と操作桿は、操作桿の外径部分に
緩衝材を配して防振を施したり、クラッチケース等で芯
ずれを防止したりしたうえで所定の位置で互いに固定さ
れるものであった。At this time, the prime mover section and the operating rod are fixed to each other at a predetermined position after providing a cushioning material on the outer diameter portion of the operating rod to provide vibration isolation or preventing misalignment with a clutch case or the like. It was something.
すなわち、上下二っ割りにした操作桿固定金具を使用し
て、上下から操作桿を挟持してボルト等で操作桿固定金
具を締付け固定する方法や、緩衝材あるいはクラッチケ
ースのすり割り部を締付け固定する方法等が行なわれて
いた。That is, using the operating rod fixing bracket that is bisected in the top and bottom, clamp the operating rod from the top and bottom and tighten the operating rod fixing bracket with bolts, or tighten the cushioning material or the slit part of the clutch case. The method of fixing was done.
［考案が解消しようとする課題］ 前記のごとく緩衝材あるいはクラッチケースを締付け固
定する方法では、操作桿の固定に使用するボルト等の締
付側は強力に締結されているが、反対側となる緩衝材端
面やクラッチケース端面部分は浮きぎみとなり、隙間が
できやすく、作業中にその部分にエンジン本体等から振
動が加わると、前記隙間部分においてボルト等で締め付
けた先端部と前記それぞれの端面部分が接触したり、離
れたりをくり返し、ついには弛緩が生じて振動の増幅や
操作桿の抜け落ち等が発生することになり、操作桿の固
定に関しては問題のあるものであった。[Problems to be solved by the invention] In the method of tightening and fixing the cushioning material or the clutch case as described above, the tightening side of the bolt or the like used for fixing the operating rod is strongly tightened, but is the opposite side. The cushioning material end face and the clutch case end face part become floating, and a gap is likely to be created, and when vibration is applied to that part during operation from the engine body etc., the tip part tightened with bolts etc. in the gap part and each end face part Repeatedly contacted and separated from each other, and eventually relaxation occurred, resulting in amplification of vibration and dropout of the operating rod, which was a problem in fixing the operating rod.
また、操作桿固定金具を使用したとしてもその取付け、
取外しの際には、部品点数が多くなり、手数を要するう
えに紛失のおそれがあり、しかも前記どちらかの方法で
あっても使用するボルト等の頭部が外部へ突出した形状
となり、その締付場所が制約されるものであった。In addition, even if you use the operating rod fixing metal fittings,
When detaching, the number of parts is large, and it is troublesome and may be lost.In addition, even if either of the above methods is used, the head of the bolt, etc. used will have a shape that protrudes to the outside, and tighten it. The place of attachment was restricted.
本考案は、前記事情に鑑みてなされたもので、原動機等
からの振動が加わったとしても弛緩することがなく、操
作桿、緩衝材等が抜け落ちたり、回ったりすることがな
いうえに、締付ボルトの頭部が外部へ突出した状態とな
らず、体裁がよく、しかも、任意の位置でしっかりと締
付け固定することのできる、刈払機の操作桿固定装置を
提供することを目的とするものである。The present invention has been made in view of the above circumstances, and does not loosen even when vibration from a prime mover is applied, and the operating rod, cushioning material, etc. do not fall out or turn, and An object of the present invention is to provide an operating rod fixing device for a brush cutter, in which the head of the attached bolt does not protrude to the outside, has a good appearance, and can be firmly tightened and fixed at any position. Is.
［課題を解決するための手段］ 本考案は、前記課題を解決するために、その内周が操作
桿の外径に適合し外周に原動機ケースとの間に介在させ
られる緩衝材が嵌着された操作桿挿入金具と、前記操作
桿の内周に嵌着される内部締付金具と、前記ケース及び
前記緩衝材の適位置に設けた透孔から挿入され前記操作
桿挿入金具及び前記操作桿を貫通して前記内部締付金具
に螺合される締付ネジとで構成したものである。[Means for Solving the Problems] In order to solve the above problems, the present invention is such that a cushioning material whose inner circumference is adapted to the outer diameter of the operating rod and which is interposed between the outer circumference and a prime mover case is fitted. Operation rod insertion metal fitting, an internal fastening metal fitting fitted to the inner circumference of the operation rod, the operation rod insertion metal fitting and the operation rod inserted through through holes provided at appropriate positions of the case and the cushioning material. And a tightening screw that is threadedly engaged with the internal tightening metal fitting.
［作用］ 本考案の実施例では、例えば第１図に示すごとく、まず
操作桿３が、その外径に適合した操作桿挿入金具７に挿
入され、後述する緩衝材１１とともに原動機１のケース
の一部を構成するクラッチケース６に装着される。[Operation] In the embodiment of the present invention, as shown in, for example, FIG. 1, the operating rod 3 is first inserted into the operating rod insertion fitting 7 adapted to the outer diameter thereof, and the casing of the prime mover 1 together with the cushioning material 11 described later. It is attached to a clutch case 6 which constitutes a part.
この時、前記操作桿３に内蔵された伝動軸２の内端２′
は、原動機１の出力軸によって回転させられる遠心クラ
ッチのクラッチシユーを受け入れるクラッチドラム９に
一体的に固着された伝動軸用連結軸８に挿入され、クラ
ッチケース６に装着されたベアリング１０を介して回転
自在に支持されて芯ずれ等が防止されている。At this time, the inner end 2'of the transmission shaft 2 built in the operating rod 3
Is inserted into a transmission shaft connecting shaft 8 that is integrally fixed to a clutch drum 9 that receives a clutch shoe of a centrifugal clutch that is rotated by the output shaft of the prime mover 1, and via a bearing 10 mounted in a clutch case 6. And is rotatably supported to prevent misalignment.
さらに、前記操作桿挿入金具７と前記クラッチケース６
との間には、緩衝材１１が適当な固着手段を用いて装着
され、前記操作桿３の内周にはネジ孔１４を有した内部
締付金具１５が嵌着される。Further, the operating rod insertion fitting 7 and the clutch case 6
A cushioning material 11 is mounted between the and, using an appropriate fixing means, and an inner tightening fitting 15 having a screw hole 14 is fitted on the inner circumference of the operating rod 3.
また、前記クラッチケース６及び緩衝材１１が前記内部
締付金具１５のネジ孔１４に整合するそれぞれの適位置
には透孔１７及び透孔１７ａが設けられている。Further, a through hole 17 and a through hole 17a are provided at appropriate positions where the clutch case 6 and the cushioning material 11 are aligned with the screw holes 14 of the internal tightening fitting 15.
そして、締付ネジ１６を前記透孔１７及び１７ａに挿入
し、前記操作桿挿入金具７及び操作桿３を貫通して前記
内部締付金具１５に螺合すればよいものである。Then, the tightening screw 16 may be inserted into the through holes 17 and 17a, penetrate the operation rod insertion fitting 7 and the operation rod 3, and be screwed into the internal tightening fitting 15.
その結果、操作桿３が抜け落ちたり、回ったりすること
もなくしっかりと締付固定され、しかも、締付ネジ１６
の頭部が突出した形状となることもなく、したがって締
付ネジ１６の設置場所が制限されることのないものであ
る。As a result, the operating rod 3 is firmly tightened and fixed without falling off or turning, and the tightening screw 16
The head does not have a protruding shape, and therefore the installation place of the tightening screw 16 is not restricted.
［実施例］ 以下、本考案の一実施例を図面に基づいて詳細に説明す
る。[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings.
第３図には従来より提供されている刈払い機の一例が示
されている。FIG. 3 shows an example of a conventional brush cutter.
すなわち、駆動装置の原動機として小型の空冷２サイク
ルエンジン本体１と、該エンジン本体１から延長された
伝動軸２と、該伝動軸２を内蔵した操作桿３と、それら
の先端に、回転自在に設けられた刈刃４と、前記操作桿
３の適位置に設けられた操作ハンドル５等によって構成
されている。That is, a small air-cooled two-cycle engine main body 1 as a prime mover of a drive device, a transmission shaft 2 extended from the engine main body 1, an operating rod 3 having the transmission shaft 2 built therein, and a tip thereof rotatably. The cutting blade 4 is provided, and the operation handle 5 is provided at an appropriate position on the operation rod 3.
本考案は、前記操作桿３の固定装置に関するものであ
る。The present invention relates to a fixing device for the operating rod 3.
第１図及び第２図には、その一実施例の詳細が示されて
いる。1 and 2 show the details of one embodiment.
本考案では、前記伝動軸２を内蔵した円筒状の操作桿３
の内端３′が、前記エンジン本体１のケースの一部をな
し、遠心クラッチ（図示せず）を覆う、フランジ付円筒
状のクラッチケース６の内部に装着される操作桿挿入金
具７に挿入され、同時に前記伝動軸２の後端２′が伝動
軸用連結軸８にねじ嵌合等により連結される。In the present invention, a cylindrical operating rod 3 incorporating the transmission shaft 2 therein.
An inner end 3'of the engine body 1 is a part of the case of the engine body 1 and is inserted into an operating rod insertion fitting 7 mounted inside a flanged cylindrical clutch case 6 that covers a centrifugal clutch (not shown). At the same time, the rear end 2'of the transmission shaft 2 is connected to the transmission shaft connecting shaft 8 by screw fitting or the like.
該伝動軸用連結軸８は、前記エンジン本体１の出力軸
（図示せず）と一体に回転するクラッチシユー（図示せ
ず）を受入れるクラッチドラム９に一体的に固着され、
前記クラッチケース６に装着されたベアリング１０を介
して回転自在に支持されている。The transmission shaft connecting shaft 8 is integrally fixed to a clutch drum 9 that receives a clutch shoe (not shown) that rotates integrally with an output shaft (not shown) of the engine body 1.
It is rotatably supported via a bearing 10 mounted on the clutch case 6.
さらに、前記クラッチケース６の円筒部内周と操作桿挿
入金具７の外周との間には、合成ゴム等で円筒状に成形
された防振用の緩衝材１１が、嵌合、焼付け、あるいは
接着等の適当な手段により固着される。Further, between the inner circumference of the cylindrical portion of the clutch case 6 and the outer circumference of the operating rod insertion fitting 7, a vibration-damping cushioning material 11 formed of synthetic rubber or the like in a cylindrical shape is fitted, baked, or bonded. It is fixed by an appropriate means such as.
さらにまた、前記操作桿３の内端３′の内周の適位置に
は、適数のネジ孔１４を設けたすり割りの入った環状の
内部締付金具１５があらかじめ圧入されている。Furthermore, an annular internal tightening fitting 15 having a slot provided with an appropriate number of screw holes 14 is press-fitted in advance at an appropriate position on the inner circumference of the inner end 3'of the operating rod 3.
また、前記ネジ孔１４に整合するように、前記クラッチ
ケース６、前記緩衝材１１のそれぞれの適位置には、締
付ネジ１６を着脱できる透孔１７，１７ａが設けられて
いる。Further, through holes 17 and 17a to which the tightening screws 16 can be attached and detached are provided at appropriate positions of the clutch case 6 and the cushioning member 11 so as to be aligned with the screw holes 14.
そして、前記締付ネジ１６を前記透孔１７，１７ａに挿
入し、前記操作桿挿入金具７及び操作桿３を貫通して前
記内部締付金具１５のネジ孔１４に螺合すれば、従来の
ように締付部に隙間が生せず、振動等によって弛緩する
こともなく、操作桿３、操作桿挿入金具７、緩衝材１１
及びクラッチケース６が堅固に締結され、操作桿３や緩
衝材１１の抜け落ちや回り等が防止されるものである。Then, by inserting the tightening screw 16 into the through holes 17 and 17a and penetrating the operating rod insertion fitting 7 and the operating rod 3 and screwing it into the screw hole 14 of the internal tightening fitting 15, As described above, there is no gap in the tightening portion, and there is no relaxation due to vibration or the like, and the operation rod 3, the operation rod insertion metal fitting 7, the cushioning material 11
Also, the clutch case 6 is firmly fastened to prevent the operation rod 3 and the cushioning material 11 from slipping off and rotating.
なお、従来においては、締付ネジ１６の頭部が外部へ突
出した形状とされるため邪魔になり、その設置場所が制
限されていた。しかし、本実施例においては、クラッチ
ケース６及び緩衝材１１に設ける透孔１７及び１７ａ内
に締付ネジ１６を挿入する構成としたため、クラッチケ
ース６の外周面より締付ネジ１６の頭部が突出すること
がなく、スッキリとした形状となり、邪魔にもならず、
したがって締付ネジ１６を任意の位置に設けることがで
きるものである。Incidentally, in the past, since the head of the tightening screw 16 is formed to have a shape protruding to the outside, it becomes an obstacle and its installation location is limited. However, in the present embodiment, since the tightening screw 16 is inserted into the through holes 17 and 17a provided in the clutch case 6 and the cushioning member 11, the head of the tightening screw 16 is located more than the outer peripheral surface of the clutch case 6. It does not protrude, it has a neat shape, it does not get in the way,
Therefore, the tightening screw 16 can be provided at any position.
そのうえ、締付ネジ１６の頭部が緩衝材１１の抜け落ち
ストッパーともなるものである。In addition, the head of the tightening screw 16 also serves as a stopper for the cushioning material 11 to fall off.
図中１８は、緩衝材押え部であり、操作桿挿入金具７の
前端に設けられ、緩衝材１１の抜け落ちをより確実に防
ぐものである。Reference numeral 18 in the drawing denotes a cushioning material pressing portion, which is provided at the front end of the operating rod insertion fitting 7 and more reliably prevents the cushioning material 11 from falling off.
［考案の効果］ 以上のごとく本考案によれば、操作桿を突起物のない体
裁の良い形態に、しかも比較的薄肉の操作桿でもしっか
りと固定することができ、しかも振動等が加わっても弛
緩することなく、操作桿が抜け落ちたり、回ったりする
ことがない等の効果が得られるものである。[Effects of the Invention] As described above, according to the present invention, the operating rod can be firmly fixed to a form with no protrusion, and even a relatively thin operating rod can be firmly fixed, and even if vibration is applied. It is possible to obtain the effect that the operating rod does not fall out or turn without being loosened.
図面は本考案の一実施例を示すもので、第１図は本考案
の要部の縦断面図、第２図は第１図のII−II線断面図、
第３図は刈払機の全体斜視図である。 ２……伝動軸、３……操作桿、６……原動機ケース、７
……操作桿挿入金具、９……クラッチドラム、１１……
緩衝材、１５……内部締付金具、１６……締付ネジ、１
７，１７ａ……透孔。FIG. 1 shows an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of a main part of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is an overall perspective view of the brush cutter. 2 ... Transmission shaft, 3 ... Control rod, 6 ... Motor case, 7
…… Control rod insert, 9 …… Clutch drum, 11 ……
Cushioning material, 15 …… Internal tightening metal fitting, 16 …… Tightening screw, 1
7, 17a ... Through hole.
Claims (1)
原動機ケース６との間に介在させられる緩衝材１１が嵌
着された操作桿挿入金具７と、前記操作桿３の内周に嵌
着される内部締付金具１５と、前記ケース６及び前記緩
衝材１１の適位置に設けた透孔１７，１７ａから挿入さ
れ前記操作桿挿入金具７及び前記操作桿３を貫通して前
記内部締付金具１５に螺合される締付ネジ１６とからな
ることを特徴とする刈払機の操作桿固定装置。1. An operating rod insertion fitting 7 having an inner periphery adapted to the outer diameter of the operating rod 3 and having an outer periphery fitted with a cushioning material 11 interposed between the operating rod 3 and the engine case 6, and the operating rod 3. An internal tightening fitting 15 fitted on the inner circumference and through the operating rod insertion fitting 7 and the operating rod 3 inserted through through holes 17 and 17a provided at appropriate positions of the case 6 and the cushioning material 11. And a tightening screw 16 screwed to the internal tightening fitting 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3841689U JPH0621299Y2 (en) | 1989-03-31 | 1989-03-31 | Operation rod fixing device for brush cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3841689U JPH0621299Y2 (en) | 1989-03-31 | 1989-03-31 | Operation rod fixing device for brush cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02131821U JPH02131821U (en) | 1990-11-01 |
| JPH0621299Y2 true JPH0621299Y2 (en) | 1994-06-08 |
Family
ID=31546403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3841689U Expired - Lifetime JPH0621299Y2 (en) | 1989-03-31 | 1989-03-31 | Operation rod fixing device for brush cutter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621299Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4676842B2 (en) * | 2005-09-02 | 2011-04-27 | ハスクバーナ・ゼノア株式会社 | Brush cutter |
| CN101528022B (en) | 2006-10-19 | 2013-05-01 | 富世华智诺株式会社 | Brush cutter |
-
1989
- 1989-03-31 JP JP3841689U patent/JPH0621299Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02131821U (en) | 1990-11-01 |
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