JPH0664432U - Pruning machine - Google Patents

Pruning machine

Info

Publication number
JPH0664432U
JPH0664432U JP621493U JP621493U JPH0664432U JP H0664432 U JPH0664432 U JP H0664432U JP 621493 U JP621493 U JP 621493U JP 621493 U JP621493 U JP 621493U JP H0664432 U JPH0664432 U JP H0664432U
Authority
JP
Japan
Prior art keywords
shaped guide
branch
rotary blade
pruning machine
blade
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
Application number
JP621493U
Other languages
Japanese (ja)
Other versions
JP2579037Y2 (en
Inventor
意成 北澤
一男 原田
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.)
Kyoritsu Co Ltd
Original Assignee
Kyoritsu Co Ltd
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 Kyoritsu Co Ltd filed Critical Kyoritsu Co Ltd
Priority to JP1993006214U priority Critical patent/JP2579037Y2/en
Publication of JPH0664432U publication Critical patent/JPH0664432U/en
Application granted granted Critical
Publication of JP2579037Y2 publication Critical patent/JP2579037Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

(57)【要約】 【目的】 枝の切断時にビビリ振動やぶれを抑制して滑
らかに切断することができ、したがって未熟練者でも容
易に安定した操作を行うことができるとともに、作業能
率を向上させ、しかも、径の大きい枝を中途半端に切断
して枝を損傷させることを防止するとともに、枝打機の
耐久性をも向上させることのできる枝打機を提供する。 【構成】 回転刃7の回転平面7aに近接して前記回転
刃7の突き出し方向に延伸させたU字状ガイド8を設け
た枝打機において、前記U字状ガイド8は前記回転刃7
の突き出し出し方向に進退自在に取り付けられるととも
に、非作業時には前記U字状ガイド8の底部が前記回転
刃7の刃部6の先端よりも外方位置となるように付勢部
材11によって偏圧させてなる。
(57) [Abstract] [Purpose] When cutting a branch, it is possible to suppress chattering vibration and blurring and to cut smoothly, so that even an unskilled person can easily perform stable operation and improve work efficiency. Further, it is possible to provide a pruning machine capable of preventing a branch having a large diameter from being cut halfway to damage the branch and also improving the durability of the pruning machine. In a pruning machine provided with a U-shaped guide 8 extending in the protruding direction of the rotary blade 7 in the vicinity of the rotary plane 7a of the rotary blade 7, the U-shaped guide 8 is the rotary blade 7
Of the U-shaped guide 8 is biased by a biasing member 11 so that the bottom of the U-shaped guide 8 is located outside the tip of the blade 6 of the rotary blade 7 when not in operation. Let me do it.

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]

本考案は、枝打機に関し、特に、機体の先端に取り付けられた回転刃を駆動さ せて立木の枝等を切断する枝打機に関する。 The present invention relates to a pruning machine, and more particularly to a pruning machine that drives a rotary blade attached to the tip of a machine body to cut a branch of a standing tree.

【0002】[0002]

【従来の技術】[Prior art]

例えば、街路樹や庭木等の高所にある枝を切断したり、トリミングを行う枝打 機においては、操作桿の一端に設置された小型空冷2サイクルガソリンエンジン 等の動力源からの出力を、動力伝達装置を介して操作桿の他端に設けられた往復 動式または回転式の鋸刃に伝え、この鋸刃を作動させて枝打ちを行うようになっ ている。 For example, in a pruning machine that cuts or trims branches at high places such as street trees and garden trees, the output from a power source such as a small air-cooled 2-cycle gasoline engine installed at one end of the operating rod, The power is transmitted to a reciprocating or rotating saw blade provided at the other end of the operating rod via a power transmission device, and the saw blade is operated to perform pruning.

【0003】 また、回転式の鋸刃を用いた場合において、回転刃の回転方向前側に枝を刃部 に案内する略U字状のガイド部を設けた枝打機が、例えば、本考案の出願人の出 願に係わる実開平4ー19140号公報に基づく全文明細書に記載されている。Further, in the case of using a rotary saw blade, a pruning machine provided with a substantially U-shaped guide portion for guiding a branch to a blade portion on the front side in the rotation direction of the rotary blade is, for example, one of the present inventions. It is described in the full-text specification based on Japanese Utility Model Laid-Open No. 19140/1992 concerning the applicant's application.

【0004】[0004]

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

しかしながら、前記の如き従来の枝打機においては、U字状ガイドの間口幅が 大き過ぎて枝をしっかり固定できず、枝の切断時にビビリ振動やぶれが生じるこ とがあり、手や指のしびれの原因になったり、あるいは、作業能率や安定性を低 下させるという問題点があった。 However, in the conventional pruning machine as described above, the front width of the U-shaped guide is too large to firmly fix the branch, and chatter vibration or blurring may occur when the branch is cut. However, there is a problem in that it may cause a problem or reduce work efficiency and stability.

【0005】 また、ガイド部の間口に入りきらない径を有する太い枝を切断しようとした場 合、全部切断できないことがある。この場合には、枝が傷ついたまま落下しない ので、姿勢を変えて逆方向から追切を行わなければならない。ところが、実際上 は、枝が重なり合ったり密集したりして枝打機が入らなかったり、地形上、姿勢 を変えての枝打作業が不可能である場合も多く、完全な枝打作業が困難となると いう問題点があった。さらに、あまり径の大き過ぎる枝を切断した場合には、エ ンジンの出力に対応した限界切断力を超えてしまい枝打機が損傷してしまうとい う問題点があった。Further, when attempting to cut a thick branch having a diameter that does not fit in the frontage of the guide portion, it may not be possible to cut the entire branch. In this case, the branches will not drop with damage, so the posture must be changed and the trailing cut must be performed from the opposite direction. However, in reality, there are many cases where the pruning machine cannot be entered due to overlapping or dense branches, and it is not possible to perform pruning work by changing the posture in terms of topography, which makes complete pruning work difficult. There was a problem that Furthermore, if a branch with a too large diameter is cut, the limit cutting force corresponding to the engine output will be exceeded and the pruning machine will be damaged.

【0006】 本考案は、このような従来の枝打機の問題に鑑みてなされたものであって、そ の目的は、特に、枝の切断時にビビリ振動やぶれを抑制して滑らかに切断するこ とができ、したがって未熟練者でも容易に安定した操作を行うことができるとと もに、作業能率を向上させ、しかも、径の大きい枝を中途半端に切断して枝を損 傷させることを防止するとともに、枝打機の耐久性をも向上させることのできる 枝打機を提供することである。The present invention has been made in view of the above problems of the conventional pruning machine, and an object thereof is to suppress chattering vibration and blurring at the time of cutting a branch so that the branch can be cut smoothly. Therefore, even an unskilled person can easily perform stable operation, improve work efficiency, and cut a large-diameter branch halfway to damage the branch. It is an object of the present invention to provide a pruning machine capable of preventing the pruning machine and improving the durability of the pruning machine.

【0007】[0007]

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

前記の目的を達成すべく、本考案に係わる枝打機は、基本的には、回転刃の回 転平面に近接して前記回転刃の突き出し方向に延伸させたU字状ガイドを設けた 枝打機において、前記U字状ガイドは前記回転刃の突き出し方向に進退自在に取 り付けられるとともに、非作業時には前記U字状ガイドの底部が前記回転刃の刃 部の先端よりも外方位置となるように付勢部材によって偏圧させたことを特徴と している。 In order to achieve the above-mentioned object, the pruning machine according to the present invention basically has a branch provided with a U-shaped guide that is extended in the protruding direction of the rotary blade in the vicinity of the rotation plane of the rotary blade. In the hammering machine, the U-shaped guide is attached so as to be able to move back and forth in the protruding direction of the rotary blade, and the bottom of the U-shaped guide is positioned outside the tip of the blade of the rotary blade when not in operation. The biasing member biases the pressure so that

【0008】 そして、より具体的な例としては、前記U字状ガイドの間口幅を許容最大切断 枝径とほぼ等しくするとともに、前記U字状ガイドの底部の奥行きを前記間口幅 の約1.5倍以上に設定したことを特徴としている。As a more specific example, the front width of the U-shaped guide is made substantially equal to the maximum permissible cutting branch diameter, and the depth of the bottom of the U-shaped guide is about 1. The feature is that it is set to 5 times or more.

【0009】[0009]

【作 用】[Work]

前述の如く構成された本考案に係わる枝打機においては、U字状ガイドの左右 突起間に枝を導入し、枝を挟み込んだ状態で回転刃を突き出すと、U字状ガイド は付勢部材に抗して後退する。そして、回転刃により枝が切断される。枝の切断 後は、付勢部材の作用によりU字状ガイドは自動的に元の位置に戻される。 In the pruning machine according to the present invention configured as described above, when the branch is introduced between the left and right protrusions of the U-shaped guide and the rotary blade is projected while the branch is sandwiched, the U-shaped guide is the biasing member. Retreat against. Then, the branch is cut by the rotary blade. After the branch is cut, the U-shaped guide is automatically returned to its original position by the action of the biasing member.

【0010】[0010]

【実施例】 以下、図面により本考案の一実施例を説明する。図1は本考案の枝打機の要部 上面図、図2は図1に示した部分の側面図、図3は図1に示した部分の下面図で ある。 枝打機の伝動軸1aを内挿した操作桿1の先端に取り付けられたギアケース2 の下面には、上下の回転刃カバー3、4が固着されている。この上下の回転刃カ バー3、4は略半分最中形状をなし、上下接合されて切断作業側前面が開口して いる。前記上下の回転刃カバー3、4の中空内部には、これと同心に、円盤状で その周囲に鋸状の刃部6が形成された回転刃7が回転可能に取り付けられている 。前記ギアケース2内には傘歯車装置(図示せず)が配設され、前記操作桿1の 他方端に備えられた図示しない小型内燃機関などの動力源から前記伝動軸1aに より伝えられた回転駆動力が、この傘歯車装置を介して前記回転刃7を回転させ るようになされている。Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a top view of the main part of the pruning machine of the present invention, FIG. 2 is a side view of the portion shown in FIG. 1, and FIG. 3 is a bottom view of the portion shown in FIG. Upper and lower rotary blade covers 3, 4 are fixed to the lower surface of a gear case 2 attached to the tip of an operating rod 1 into which a transmission shaft 1a of a pruning machine is inserted. The upper and lower rotary blade covers 3 and 4 have a substantially half-centered shape, and are joined vertically so that the front surface on the cutting side is open. Inside the hollow inside of the upper and lower rotary blade covers 3 and 4, concentrically, a rotary blade 7 having a disk shape and a saw-shaped blade portion 6 formed on the periphery thereof is rotatably attached. A bevel gear device (not shown) is arranged in the gear case 2, and is transmitted to the transmission shaft 1a from a power source such as a small internal combustion engine (not shown) provided at the other end of the operation rod 1. The rotational driving force is adapted to rotate the rotary blade 7 via this bevel gear device.

【0011】 なお、安全のために、前記回転刃7の露出部分が必要最低限となる様に、前記 回転刃カバー3,4の形状を決定すべきである。For the sake of safety, the shapes of the rotary blade covers 3 and 4 should be determined so that the exposed portion of the rotary blade 7 becomes the minimum necessary.

【0012】 前記下方回転刃カバー4の下面には、適宜の鋸断屑排出口4aが形成されると ともに、枝打時に切断する枝を前記回転刃7へ案内して保持するためのU字状ガ イド8が前記回転刃7の回転平面7aに近接して配設されている。このU字状ガ イド8はその後端(底部)に一体形成されたスライドロッド部9が、前記下方回 転刃カバー4の下面に固着されたガイド部10の中空内部に挿入された状態で、 前後方向(図の左右方向)に進退自在に取り付けられている。さらに、前記ロッ ド部9は、付勢部材である引張りコイルばね11により常時前方向(図の左方向 )に付勢せしめられている。An appropriate sawdust discharge port 4a is formed on the lower surface of the lower rotary blade cover 4, and a U-shape for guiding and holding a branch to be cut at the time of pruning to the rotary blade 7. A guide 8 is arranged close to the rotation plane 7a of the rotary blade 7. This U-shaped guide 8 has a slide rod portion 9 integrally formed at its rear end (bottom portion) inserted into the hollow inside of a guide portion 10 fixed to the lower surface of the lower rotating blade cover 4, It is mounted so that it can move back and forth in the front-back direction (left-right direction in the figure). Further, the rod portion 9 is always biased forward (leftward in the drawing) by a tension coil spring 11 which is a biasing member.

【0013】 そして、図1に示すように、非作業時には安全のために、その底部8aが前記 回転刃7の刃部6の先端よりも外方位置となる様に前記引張りコイルばね11に より前方向に付勢されている前記U字状ガイド8の左右の突起間(枝が進入する 空間)の間口幅aを許容最大切断枝径とほぼ等しくするとともに、前記U字状ガ イドの後退ストロークも前記間口幅aとほぼ等しくし、前記U字状ガイド8の奥 行きbを1.5a以上に設定している。Then, as shown in FIG. 1, for the sake of safety during non-working, the tension coil spring 11 is used so that the bottom portion 8 a of the rotary blade 7 is located outside the tip of the blade portion 6. The frontage width a between the left and right projections of the U-shaped guide 8 (the space where the branch enters) is made substantially equal to the maximum allowable branch diameter, and the U-shaped guide is retracted. The stroke is also made substantially equal to the width a, and the depth b of the U-shaped guide 8 is set to 1.5a or more.

【0014】 次に、このように構成された本考案の一実施例の枝打機の作用について、図4 および図5を用いて説明する。Next, the operation of the pruning machine according to the embodiment of the present invention thus constructed will be described with reference to FIGS. 4 and 5.

【0015】 図4は枝の径が前記U字状ガイド8の間口幅a、すなわち、当該枝打機として の許容最大切断枝径aの枝Bを切断する場合における枝打作用を示す。図4にお いて、前記U字状ガイド8に枝Bを導入し、前記操作桿1を突き上げると、前記 引張りコイルばね11の付勢力に抗して前記U字状ガイド8の底部8aが枝Bに 押されて、その直径分だけ後退し、換言すれば、前記回転刃7が前進して枝Bを 完全に切断する。切断後は、前記コイルばね11の付勢力により前記U字状ガイ ド8は前進して元の位置に戻される。FIG. 4 shows a pruning action when a branch diameter is the frontage width a of the U-shaped guide 8, that is, a branch B having an allowable maximum cutting branch diameter a as the pruning machine is cut. In FIG. 4, when the branch B is introduced into the U-shaped guide 8 and the operating rod 1 is pushed up, the bottom 8a of the U-shaped guide 8 is branched against the urging force of the tension coil spring 11. It is pushed by B and retreats by its diameter, in other words, the rotary blade 7 advances and cuts the branch B completely. After the cutting, the U-shaped guide 8 is advanced and returned to the original position by the urging force of the coil spring 11.

【0016】 図5は枝B’の径が前記U字状ガイド8の間口幅a、すなわち、許容最大切断 枝径よりも大きい場合における枝打作用を示す。図5に示すように、枝B’の径 がaよりも大きい場合は、前記操作桿1をいくら突き上げても前記回転刃7が枝 B’に接触せず、枝を切断しない。したがって、aよりも太くて一回の枝打動作 で完全に切断できない枝を中途半端に切って、枝を傷つけることを防止する。ま た、あまり径の大き過ぎる枝を切断しようとして、エンジンの出力に対応した限 界切断力を超えてしまい、枝打機が損傷してしまうことをも防止する。FIG. 5 shows the pruning action when the diameter of the branch B'is larger than the frontage width a of the U-shaped guide 8, that is, the maximum allowable cutting branch diameter. As shown in FIG. 5, when the diameter of the branch B'is larger than a, no matter how much the operating rod 1 is pushed up, the rotary blade 7 does not contact the branch B'and the branch is not cut. Therefore, a branch that is thicker than a and cannot be completely cut by one pruning operation is cut halfway to prevent damage to the branch. It also prevents the pruning machine from being damaged by exceeding the limit cutting force corresponding to the output of the engine when trying to cut a branch that is too large in diameter.

【0017】 なお、エンジンの出力を増大させた場合には、前記aの大きさを増大させても よいことは勿論のことであり、U字状ガイドの向きを適宜変更する等、作業環境 等に順じて様々な設計変更が可能である。When the output of the engine is increased, it goes without saying that the size of the a may be increased. For example, the orientation of the U-shaped guide may be changed appropriately, and the working environment may be changed. Various design changes are possible according to the above.

【0018】[0018]

【考案の効果】[Effect of device]

以上の説明から理解されるように、本考案によれば、枝の切断時にビビリ振動 やぶれを抑制して滑らかに切断することができ、したがって未熟練者でも容易に 安定した操作を行うことができるとともに、作業能率を向上させ、しかも、径の 大きい枝を中途半端に切断して枝を損傷させることを防止するとともに、枝打機 の耐久性をも向上させることができる。 As can be understood from the above description, according to the present invention, chatter vibration and blurring can be suppressed when cutting a branch, and a smooth cutting can be performed, so that even an unskilled person can easily perform stable operation. At the same time, it is possible to improve work efficiency, prevent the branch having a large diameter from being cut halfway to damage the branch, and improve the durability of the pruning machine.

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

【図1】 本考案の一実施例に係わる枝打機の要部上面
図。
FIG. 1 is a top view of a main part of a pruning machine according to an embodiment of the present invention.

【図2】 図1に示した部分の側面図。FIG. 2 is a side view of the portion shown in FIG.

【図3】 図1に示した部分の下面図。FIG. 3 is a bottom view of the portion shown in FIG.

【図4】 枝打作用を示す図3相当図。FIG. 4 is a view corresponding to FIG. 3 showing a pruning action.

【図5】 別の枝打作用を示す図3相当図。FIG. 5 is a view corresponding to FIG. 3 showing another pruning action.

【符号の説明】[Explanation of symbols]

6 刃部 7 回転刃 7a 回転平面 8 U字状ガイド 8a 底部 11 付勢部材 a 間口幅 b 奥行き 6 Blade portion 7 Rotating blade 7a Rotating plane 8 U-shaped guide 8a Bottom portion 11 Energizing member a Frontage width b Depth

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 回転刃(7)の回転平面(7a)に近接
して前記回転刃(7)の突き出し方向に延伸させたU字
状ガイド(8)を設けた枝打機において、前記U字状ガ
イド(8)は前記回転刃(7)の突き出し方向に進退自
在に取り付けられるとともに、非作業時には前記U字状
ガイド(8)の底部(8a)が前記回転刃(7)の刃部
(6)の先端よりも外方位置となるように付勢部材(1
1)によって偏圧させたことを特徴とする枝打機。
1. A pruning machine provided with a U-shaped guide (8) extending in the protruding direction of the rotary blade (7) in the vicinity of the plane of rotation (7a) of the rotary blade (7). The U-shaped guide (8) is attached so as to be able to move back and forth in the protruding direction of the rotary blade (7), and the bottom portion (8a) of the U-shaped guide (8) is the blade portion of the rotary blade (7) when not in operation. The biasing member (1
A pruning machine characterized in that the pressure is biased by 1).
【請求項2】 前記U字状ガイド(8)の間口幅(a)
を許容最大切断枝径とほぼ等しくするとともに、前記U
字状ガイド(8)の底部(8a)の奥行き(b)を前記
間口幅(a)の約1.5倍以上に設定したことを特徴と
する請求項1記載の枝打機。
2. The front width (a) of the U-shaped guide (8)
Is approximately equal to the maximum allowable branch diameter, and the U
The pruning machine according to claim 1, wherein the depth (b) of the bottom portion (8a) of the character-shaped guide (8) is set to be about 1.5 times or more the width (a) of the frontage.
JP1993006214U 1993-02-23 1993-02-23 Pruning machine Expired - Fee Related JP2579037Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1993006214U JP2579037Y2 (en) 1993-02-23 1993-02-23 Pruning machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1993006214U JP2579037Y2 (en) 1993-02-23 1993-02-23 Pruning machine

Publications (2)

Publication Number Publication Date
JPH0664432U true JPH0664432U (en) 1994-09-13
JP2579037Y2 JP2579037Y2 (en) 1998-08-20

Family

ID=11632278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1993006214U Expired - Fee Related JP2579037Y2 (en) 1993-02-23 1993-02-23 Pruning machine

Country Status (1)

Country Link
JP (1) JP2579037Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105706755A (en) * 2016-04-19 2016-06-29 山东农业大学 Electric high-altitude pruning machine for forest fruits
JP2019062849A (en) * 2017-10-04 2019-04-25 東日本旅客鉄道株式会社 Device for cutting tall, thick branches
CN109702838A (en) * 2019-03-14 2019-05-03 南京林业大学 Bamboo wood delimber

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115947U (en) * 1982-01-30 1983-08-08 株式会社ニツカリ pruning machine
JPS5934550U (en) * 1982-08-28 1984-03-03 株式会社ニツカリ pruning machine
JPS60147250U (en) * 1984-03-13 1985-09-30 セイレイ工業株式会社 Hand-held pneumatic pruning machine
JPS642624U (en) * 1987-06-25 1989-01-09
JPH0337385U (en) * 1989-08-23 1991-04-11

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115947U (en) * 1982-01-30 1983-08-08 株式会社ニツカリ pruning machine
JPS5934550U (en) * 1982-08-28 1984-03-03 株式会社ニツカリ pruning machine
JPS60147250U (en) * 1984-03-13 1985-09-30 セイレイ工業株式会社 Hand-held pneumatic pruning machine
JPS642624U (en) * 1987-06-25 1989-01-09
JPH0337385U (en) * 1989-08-23 1991-04-11

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105706755A (en) * 2016-04-19 2016-06-29 山东农业大学 Electric high-altitude pruning machine for forest fruits
JP2019062849A (en) * 2017-10-04 2019-04-25 東日本旅客鉄道株式会社 Device for cutting tall, thick branches
CN109702838A (en) * 2019-03-14 2019-05-03 南京林业大学 Bamboo wood delimber
CN109702838B (en) * 2019-03-14 2023-11-24 南京林业大学 Bamboo wood pruning machine

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