JPH0580221U - Mower with operating rod - Google Patents

Mower with operating rod

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Publication number
JPH0580221U
JPH0580221U JP2910892U JP2910892U JPH0580221U JP H0580221 U JPH0580221 U JP H0580221U JP 2910892 U JP2910892 U JP 2910892U JP 2910892 U JP2910892 U JP 2910892U JP H0580221 U JPH0580221 U JP H0580221U
Authority
JP
Japan
Prior art keywords
operating rod
end side
rod
mower
operating
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.)
Pending
Application number
JP2910892U
Other languages
Japanese (ja)
Inventor
望 佐々木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maruyama Manufacturing Co Inc
Original Assignee
Maruyama Manufacturing Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maruyama Manufacturing Co Inc filed Critical Maruyama Manufacturing Co Inc
Priority to JP2910892U priority Critical patent/JPH0580221U/en
Publication of JPH0580221U publication Critical patent/JPH0580221U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】 【目的】 操作桿12が伸縮自在となっていたり、湾曲し
ていたりしても、動力部20から作動部24への動力伝達構
造の複雑化が回避できる枝打機10を提供する。 【構成】 操作桿12の基端側及び先端側にそれぞれロー
タリコンプレッサ28及びエアモータ42が装着され、ロー
タリコンプレッサ28により生成された加圧空気は操作桿
12を介してエアモータ42へ供給される。エアモータ42
は、操作桿12を介して供給された加圧空気により作動し
て、刈刃26を回転駆動する。
(57) [Abstract] [Purpose] A pruning machine 10 that can avoid complication of the power transmission structure from the power unit 20 to the operating unit 24 even if the operating rod 12 is extendable and / or curved. I will provide a. [Structure] A rotary compressor 28 and an air motor 42 are mounted on the base end side and the tip end side of the operating rod 12, respectively, and the pressurized air generated by the rotary compressor 28 is operated by the operating rod.
It is supplied to the air motor 42 via 12. Air motor 42
Operates by the pressurized air supplied through the operating rod 12 and drives the cutting blade 26 to rotate.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

この考案は、枝打機や刈払機等の操作桿付き刈機に係り、詳しくは管状操作桿 の基端側の動力部から先端側の作動部への動力伝達構造を簡単化することができ る操作桿付き刈機に関するものである。 The present invention relates to a mower with an operating rod such as a pruner or a brush cutter, and more specifically, it can simplify a power transmission structure from a power unit on a proximal end side of a tubular operating rod to an operating unit on a distal end side. The present invention relates to a mower with an operating rod.

【0002】[0002]

【従来の技術】[Prior Art]

枝打機、刈払機及び縁刈機等の一般的な操作桿付き刈機では、操作桿の基端側 及び先端側にそれぞれ動力部及び作動部が装着され、操作桿内の伝動軸を介して 動力部から作動部へ回転動力が伝達されている。 In general mowers with operating rods such as a pruning machine, a brush cutter, and an edge mower, a power unit and an operating unit are mounted on the base end side and the tip end side of the operating rod, respectively, and a power transmission shaft in the operating rod is used. Rotational power is transmitted from the power unit to the working unit.

【0003】 実公平2−28665号公報は、操作桿が伸縮自在の操作桿付き刈機を開示し ており、操作桿の伸縮に応じて伝動軸も伸縮させるために、伝動軸は、結合側の 端部において入れ子式に相互に嵌合する複数個の軸部分から成っている。Japanese Utility Model Publication No. 2-28665 discloses a mower with an operating rod in which the operating rod is extendable, and the transmission shaft is extended and retracted in accordance with the extension and contraction of the operating rod. At the end of the shaft comprises a plurality of shaft portions which are telescopically fitted together.

【0004】 実公昭56−4263号公報は、摘取切断機において、枝桿の先端側の1対の はさみ片を相互に揺動させるために、シリンダを枝桿の先端側に取り付けるとと もに、枝桿内に配管を介して、枝桿の基端側から油圧又は空気圧をシリンダへ供 給することを開示する。Japanese Utility Model Publication No. 56-4263 discloses that in a plucking / cutting machine, a cylinder is attached to the tip side of a branch rod in order to swing a pair of scissor pieces on the tip side of the branch rod mutually. It is disclosed that the hydraulic pressure or the pneumatic pressure is supplied to the cylinder from the base end side of the branch rod through the pipe in the branch rod.

【0005】[0005]

【考案が解決しようとする課題】[Problems to be solved by the device]

実公平2−28665号公報の操作桿付き刈機では、伝動軸も、操作桿の伸縮 に合わせて伸縮する構造とする必要があるため、伝動軸の構造が複雑化する。特 に、操作桿の入れ子部が1個だけでなく、2個以上となった場合には、伝動軸の 構造は一層複雑となる。さらに、実公平2−28665号公報の操作桿付き刈機 における伝動軸の入れ子構造は、縁刈機のように、操作桿が湾曲しているものに は、採用困難である。 In the mower with operating rod disclosed in Japanese Utility Model Publication No. 2-28665, the structure of the transmitting shaft is complicated because the transmission shaft also needs to have a structure that expands and contracts according to the expansion and contraction of the operating rod. In particular, when the operating rod has not only one nesting portion but also two or more nesting portions, the structure of the transmission shaft becomes more complicated. Furthermore, the nesting structure of the transmission shaft in the mower with operating rod disclosed in Japanese Utility Model Publication No. 2-28665 is difficult to adopt in a machine with a curved operating rod such as an edge trimming machine.

【0006】 実公昭56−4263号公報は、1対のはさみ片を作動させるためには、回転 式の駆動装置より往復動式のシリンダを採用した方が構造が簡単となることに着 目して、油圧又は空気圧式のシリンダを装備することを開示したに止まり、枝桿 が湾曲及び/又は伸縮式である場合の枝桿内の簡単化された動力伝達構造につい ては当業者に示唆を与えるものではない。Japanese Utility Model Publication No. 56-4263 discloses that in order to operate a pair of scissors, it is simpler to employ a reciprocating cylinder than a rotary driving device. Therefore, it is only disclosed to equip a hydraulic or pneumatic cylinder, and a person skilled in the art will be suggested about a simplified power transmission structure in the branch rod when the branch rod is curved and / or telescopic. Not something to give.

【0007】 この考案の目的は、操作桿の基端側から先端側への動力伝達構造を簡単化し、 特に操作桿が伸縮式又は湾曲式等となった場合にも、動力伝達構造の複雑化を回 避できる操作桿付き刈機を提供することである。An object of the present invention is to simplify the power transmission structure from the base end side to the tip end side of the operating rod, and to make the power transmission structure complicated even when the operating rod is a telescopic type or a bending type. The purpose of the present invention is to provide a mower with a control rod that can be retracted.

【0008】[0008]

【課題を解決するための手段】[Means for Solving the Problems]

この考案を、実施例に対応する図面の符号を使用して説明する。 この考案の操作桿付き刈機(10)は次の(a)及び(b)の構成要素を有してい る。 (a)管状操作桿(12)の先端側に装着されて刈部(26)を駆動するエアモータ(42) (b)管状操作桿(12)の基端側に装着されて管状操作桿(12)を介してエアモータ (42)へ加圧空気を送出するエアコンプレッサ(28) The invention will be described using the reference numerals of the drawings corresponding to the embodiments. The mower (10) with a control rod of the present invention has the following components (a) and (b). (A) An air motor (42) attached to the distal end side of the tubular operation rod (12) to drive the cutting section (26) (b) Attached to the proximal end side of the tubular operation rod (12) to be attached to the tubular operation rod (12) Air compressor (28) that sends pressurized air to the air motor (42) via

【0009】[0009]

【作用】[Action]

エアコンプレッサ(28)は、管状操作桿(12)の基端側において駆動され、加圧空 気を生成する。この加圧空気は、管状操作桿(12)を介して管状操作桿(12)の先端 側のエアモータ(42)へ供給される。エアモータ(42)は、管状操作桿(12)を介して 供給された加圧空気により作動し、刈部(26)を駆動する。 The air compressor (28) is driven on the proximal end side of the tubular operating rod (12) to generate pressurized air. This pressurized air is supplied to the air motor (42) on the tip side of the tubular operating rod (12) via the tubular operating rod (12). The air motor (42) is actuated by the pressurized air supplied through the tubular operating rod (12), and drives the cutting section (26).

【0010】[0010]

【実施例】【Example】

以下、この考案を図面の実施例について説明する。 図4は枝打機10の全体概略図である。操作桿12は、基端側から先端側へ順次、 径を縮小されかつ結合側の端部において入れ子式に嵌合することにより操作桿12 全体として伸縮できるようにしている管14,16,18を備えている。動力部20は、 管14の基端部に装着され、作業者に把持されるハンドル22を備えている。作動部 24は、枝を切断する刈刃26を備え、管18の先端部に装着されている。 The present invention will be described below with reference to the embodiments shown in the drawings. FIG. 4 is an overall schematic view of the pruning machine 10. The operating rod 12 is gradually reduced in diameter from the base end side to the distal end side, and is telescopically fitted at the end of the connecting side so that the entire operating rod 12 can expand and contract. Is equipped with. The power unit 20 is equipped with a handle 22 that is attached to the base end of the pipe 14 and is gripped by an operator. The working part 24 is provided with a cutting blade 26 for cutting a branch, and is attached to the tip part of the pipe 18.

【0011】 図1は動力部20の詳細図である。ロータリコンプレッサ28のケース30は管14の 基端部への嵌合により管14に装着され、Oリング31は管14とケース30との嵌合部 のシールを行なっている。ロータ32は、ケース30内に収容され、ロータリコンプ レッサ28においてロータ32の回転により生成された空気は管14内へ送り込まれる ようになっている。エンジン34は管14とは反対側においてケース30に固定され、 エンジン34のクランク軸36の回転は遠心クラッチ38を介してロータリコンプレッ サ28のロータ軸40へ伝達される。ロータ軸40は1対の軸受41を介してケース30に 回転自在に軸支されている。FIG. 1 is a detailed view of the power unit 20. The case 30 of the rotary compressor 28 is attached to the pipe 14 by fitting it to the base end of the pipe 14, and the O-ring 31 seals the fitting portion between the pipe 14 and the case 30. The rotor 32 is housed in the case 30, and the air generated by the rotation of the rotor 32 in the rotary compressor 28 is sent into the pipe 14. The engine 34 is fixed to the case 30 on the side opposite to the pipe 14, and the rotation of the crankshaft 36 of the engine 34 is transmitted to the rotor shaft 40 of the rotary compressor 28 via the centrifugal clutch 38. The rotor shaft 40 is rotatably supported by the case 30 via a pair of bearings 41.

【0012】 図2は作動部24の詳細図である。エアモータ42のケース44は操作桿12の管18の 先端部への嵌合により管18に装着され、Oリング46は管18とケース44との嵌合部 のシールを行なっている。ロータ48は、管18からの加圧空気を供給されるように 、ケース44内に収容されている。ロータ軸52は、ロータ48と一体的に回転し、両 端部において軸受50を介して回転自在にケース44に軸支される。排出口54は、ケ ース44に形成され、ロータ48の回転駆動を終えた加圧空気を大気空間へ放出する 。駆動軸56は、ロータ軸52に対して平行にケース44内に配設され、両端部におい て軸受58を介して回転自在にケース44に軸支されている。小径及び大径の歯車60 ,62は、それぞれロータ軸52及び駆動軸56に一体回転的に結合し、相互にかみ合 って、ロータ軸52の回転を減速させて、駆動軸56へ伝達する。刈刃26は、中心部 において両側からボス64,66を当てられ、ボルト68は、ボス64,66を貫通してか ら、駆動軸56に螺着され、ボス64,66を介して刈刃26を挟圧しつつ、刈刃26を駆 動軸56に固定している。FIG. 2 is a detailed view of the operating portion 24. The case 44 of the air motor 42 is attached to the pipe 18 by fitting the tip end of the pipe 18 of the operating rod 12, and the O-ring 46 seals the fitting portion between the pipe 18 and the case 44. The rotor 48 is housed in the case 44 so that the pressurized air from the pipe 18 is supplied. The rotor shaft 52 rotates integrally with the rotor 48, and is rotatably supported by the case 44 at both ends via bearings 50. The discharge port 54 is formed in the case 44 and discharges the pressurized air, which has finished the rotational driving of the rotor 48, to the atmospheric space. The drive shaft 56 is arranged in the case 44 in parallel with the rotor shaft 52, and is rotatably supported by the case 44 via bearings 58 at both ends. The small-diameter and large-diameter gears 60 and 62 are integrally and rotationally coupled to the rotor shaft 52 and the drive shaft 56, respectively, and are engaged with each other to decelerate the rotation of the rotor shaft 52 and transmit it to the drive shaft 56. . The cutting blade 26 has bosses 64 and 66 applied from both sides at the center, and the bolt 68 penetrates the bosses 64 and 66 and is then screwed to the drive shaft 56. The cutting blade 26 is fixed to the drive shaft 56 while pinching 26.

【0013】 図3は操作桿12の入れ子部の構造図である。図3は管14,16の結合部であるが 、管16,18の結合部の構造も同一である。円筒状のブッシュ70は管14の内周側と 管16の外周側との間に嵌挿され、管14,16の放射方向張り出し縁部により抜けを 阻止されている。オイルシール72は、管14の先端部の内周側の環状溝に嵌着され 、管16の外周に摺接する。締付用リング74は、スリット等の存在により放射方向 へ弾性的に縮小可能な構造を有し、管14の先端部の外周側へ嵌合し、先端側には 、外周側にねじ溝が形成されたテーパ部76を備えている。ナット78は、テーパ部 76へ螺合し、テーパ部76へ深く螺合するのに伴って、テーパ部76の大径側へ移動 して、締付用リング74の径を縮小し、締付用リング74を管14,16に固定する。操 作桿12の長さを調整する場合は、ナット78を緩めて、管14,16の長手方向相対変 位を許容してから、管14,16の長手方向重複量を変更し、操作桿12を所望の長さ にした後、ナット78を再度締めて、管14,16の長手方向相対変位を拘束する。FIG. 3 is a structural diagram of a nesting portion of the operating rod 12. Although FIG. 3 shows the joint between the pipes 14 and 16, the structure of the joint between the pipes 16 and 18 is the same. The cylindrical bush 70 is fitted between the inner peripheral side of the pipe 14 and the outer peripheral side of the pipe 16, and is prevented from coming off by the radially projecting edges of the pipes 14, 16. The oil seal 72 is fitted in an annular groove on the inner peripheral side of the tip of the pipe 14 and is in sliding contact with the outer periphery of the pipe 16. The tightening ring 74 has a structure that can be elastically contracted in the radial direction due to the presence of slits, etc., and is fitted to the outer peripheral side of the tip of the pipe 14 and has a thread groove on the outer peripheral side. The taper portion 76 is formed. The nut 78 is screwed into the taper portion 76, and as it is deeply screwed into the taper portion 76, the nut 78 moves to the larger diameter side of the taper portion 76 to reduce the diameter of the tightening ring 74 and tighten it. The ring 74 is fixed to the tubes 14 and 16. When adjusting the length of the operating rod 12, loosen the nut 78 to allow the relative displacement of the pipes 14 and 16 in the longitudinal direction, and then change the overlapping amount of the pipes 14 and 16 in the longitudinal direction. After 12 has the desired length, the nut 78 is retightened to constrain the relative longitudinal displacement of the tubes 14,16.

【0014】 実施例の作用について説明する。 枝打機10により枝の切断作業を行なう場合、操作桿12の所望の長さに調整する とともに、エンジン34を始動する。エンジン34のクランク軸36が、所定値以上で 回転している場合は、遠心クラッチ38が接となり、クランク軸36の回転が遠心ク ラッチ38を介してロータリコンプレッサ28のロータ軸40へ伝達されて、ロータ32 が回転して、加圧空気が生成される。この加圧空気は、管14の基端側から操作桿 12内へ導入され、操作桿12の管14,16,18を介して操作桿12の先端側へ導かれ、 操作桿12の先端側から作動部24のエアモータ42へ供給されて、エアモータ42のロ ータ48を回転させる。ロータ48の回転は、ロータ軸52、歯車60,62及び駆動軸56 を介して刈刃26へ伝達され、刈刃26は回転する。The operation of the embodiment will be described. When performing a branch cutting operation by the pruning machine 10, the operating rod 12 is adjusted to a desired length and the engine 34 is started. When the crankshaft 36 of the engine 34 is rotating at a predetermined value or more, the centrifugal clutch 38 is engaged, and the rotation of the crankshaft 36 is transmitted to the rotor shaft 40 of the rotary compressor 28 via the centrifugal clutch 38. , The rotor 32 rotates and compressed air is generated. This pressurized air is introduced into the operating rod 12 from the proximal end side of the pipe 14, is guided to the distal end side of the operating rod 12 through the pipes 14, 16, 18 of the operating rod 12, and the distal end side of the operating rod 12 is introduced. Is supplied to the air motor 42 of the operating unit 24 to rotate the rotor 48 of the air motor 42. The rotation of the rotor 48 is transmitted to the cutting blade 26 via the rotor shaft 52, the gears 60 and 62, and the drive shaft 56, and the cutting blade 26 rotates.

【0015】 図示の実施例では、枝打機10について説明したが、この考案は刈払機や縁刈機 等、他の操作桿付き刈機にも適用可能である。 図示の実施例では、操作桿12は直線的に延びているが、操作桿12は湾曲してい てもよい。 図示の実施例では、回転式の刈刃26となっているが、刈刃26の代わりにチェー ンソーや刈紐等が使用されていてもよい。Although the pruning machine 10 has been described in the illustrated embodiment, the present invention is also applicable to other mowers with operating rods such as a brush cutter and an edge mower. In the illustrated embodiment, the operating rod 12 extends linearly, but the operating rod 12 may be curved. In the illustrated embodiment, the rotary cutting blade 26 is used, but a chain saw, a cutting string or the like may be used instead of the cutting blade 26.

【0016】[0016]

【考案の効果】 この考案では、管状操作桿の基端側のエアコンプレッサにおいて生成された加 圧空気が、管状操作桿を介して先端側のエアモータへ供給され、エアモータの作 動により刈部を駆動するようになっているので、伝動軸を省略して、管状操作桿 の短径化及び操作桿付き刈機の軽量化を図ることができる。EFFECTS OF THE INVENTION In the present invention, the pressurized air generated in the air compressor on the base end side of the tubular operation rod is supplied to the air motor on the tip end side via the tubular operation rod, and the cutting portion is operated by the operation of the air motor. Since it is driven, the transmission shaft can be omitted, and the diameter of the tubular operating rod can be shortened and the weight of the mower with the operating rod can be reduced.

【0017】 さらに、管状操作桿が伸縮式及び/又は湾曲式となっている場合にも、伝動軸 は伸縮自在及び/又は湾曲式とすることを回避でき、また、管状操作桿等から多 少の空気が漏れても、汚染や作動不良の心配もないので、管状操作桿の入れ子部 等に厳密なシールが要求されず、操作桿付き刈機における管状操作桿の基端側か ら先端側への動力伝達構造の簡単化を図ることができる。Further, even when the tubular operating rod is of a telescopic type and / or a curving type, it is possible to avoid making the transmission shaft extendable and / or curving type, and to reduce the number of tubular operating rods and the like. Since there is no risk of contamination or malfunction even if air leaks, the strict sealing of the nesting part of the tubular operating rod is not required, and the proximal side to the tip side of the tubular operating rod in the operating machine with operating rod is not required. The power transmission structure can be simplified.

【図面の簡単な説明】[Brief description of drawings]

【図1】動力部の詳細図である。FIG. 1 is a detailed view of a power unit.

【図2】作動部の詳細図である。FIG. 2 is a detailed view of an operating unit.

【図3】操作桿の入れ子部の構造図である。FIG. 3 is a structural diagram of a nesting portion of an operating rod.

【図4】枝打機の全体概略図である。FIG. 4 is an overall schematic view of a pruning machine.

【符号の説明】[Explanation of symbols]

10 枝打機(操作桿付き刈機) 12 操作桿(管状操作桿) 26 刈刃(刈部) 28 ロータリコンプレッサ 42 エアモータ 10 Pruner (Mower with operating rod) 12 Operating rod (Tubular operating rod) 26 Cutting blade (Mowing part) 28 Rotary compressor 42 Air motor

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 管状操作桿(12)の先端側に装着されて刈
部(26)を駆動するエアモータ(42)と、前記管状操作桿(1
2)の基端側に装着されて前記管状操作桿(12)を介して前
記エアモータ(42)へ加圧空気を送出するエアコンプレッ
サ(28)とを有していることを特徴とする操作桿付き刈
機。
1. An air motor (42) mounted on the tip side of a tubular operating rod (12) for driving a cutting section (26), and the tubular operating rod (1).
2) An operating rod which is mounted on the proximal end side and has an air compressor (28) for sending pressurized air to the air motor (42) via the tubular operating rod (12). Mower with.
JP2910892U 1992-04-06 1992-04-06 Mower with operating rod Pending JPH0580221U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2910892U JPH0580221U (en) 1992-04-06 1992-04-06 Mower with operating rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2910892U JPH0580221U (en) 1992-04-06 1992-04-06 Mower with operating rod

Publications (1)

Publication Number Publication Date
JPH0580221U true JPH0580221U (en) 1993-11-02

Family

ID=12267143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2910892U Pending JPH0580221U (en) 1992-04-06 1992-04-06 Mower with operating rod

Country Status (1)

Country Link
JP (1) JPH0580221U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023223391A1 (en) * 2022-05-16 2023-11-23 株式会社やまびこ Hand-held work implement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5247021A (en) * 1975-10-13 1977-04-14 Nippon Kouatsu Concrete Process and apparatus for centrifugal reinforced concrete or mortar pipe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5247021A (en) * 1975-10-13 1977-04-14 Nippon Kouatsu Concrete Process and apparatus for centrifugal reinforced concrete or mortar pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023223391A1 (en) * 2022-05-16 2023-11-23 株式会社やまびこ Hand-held work implement

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