JP2011217698A - Self-propelled grass mower - Google Patents

Self-propelled grass mower Download PDF

Info

Publication number
JP2011217698A
JP2011217698A JP2010092889A JP2010092889A JP2011217698A JP 2011217698 A JP2011217698 A JP 2011217698A JP 2010092889 A JP2010092889 A JP 2010092889A JP 2010092889 A JP2010092889 A JP 2010092889A JP 2011217698 A JP2011217698 A JP 2011217698A
Authority
JP
Japan
Prior art keywords
blade
self
mowing
drive shaft
support case
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
JP2010092889A
Other languages
Japanese (ja)
Inventor
Tetsuya Serizawa
哲也 芹沢
Yoshio Yabe
善夫 矢邉
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.)
CENTRAL NIPPON HIGHWAY MAINTENANCE TOMEI CO Ltd
Original Assignee
CENTRAL NIPPON HIGHWAY MAINTENANCE TOMEI 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 CENTRAL NIPPON HIGHWAY MAINTENANCE TOMEI CO Ltd filed Critical CENTRAL NIPPON HIGHWAY MAINTENANCE TOMEI CO Ltd
Priority to JP2010092889A priority Critical patent/JP2011217698A/en
Publication of JP2011217698A publication Critical patent/JP2011217698A/en
Pending legal-status Critical Current

Links

Landscapes

  • Harvester Elements (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a self-propelled grass mower in which an operator easily and surely carries out grass mowing operations alone and performs operations without caring about scattering of fragments such as pebbles, stocks, or the like.SOLUTION: The self-propelled grass mower includes swinging means A to be swung right and left on a base 1b of a hair clipper type grass mowing blade body 1 as a fulcrum in which the swinging means A includes a support case 2 that superposes two blade plates 1a, supports them slidably in the longer direction and is equipped with a slide mechanism inside, a blade drive shaft 3 connected to an engine side, a hollow shaft 5 into which the blade drive shaft 3 is inserted, has one end fixed to the support case 2 and turnably supports the support case 2 through a bearing 4, a chain mechanism portion 6, a cam plate 7 on which a spindle 64 for pivotally supporting a chain large gear 61 of the chain mechanism portion is mounted in a fixed condition and which has a long hole 71, and a rotary plate 8 having a pin 81 sliding along the long hole 71 of the cam plate 7 and rotary plate drive means B for rotating the rotary plate 8 in which the rotary plate drive means is equipped with a clutch 13.

Description

本発明は自走式草刈機に関し、特にはバリカン式の草刈り作業が行える自走式草刈機に関する。   The present invention relates to a self-propelled mower, and more particularly, to a self-propelled mower capable of performing a clipper type mowing operation.

一般に草刈機は、牧草や野草などを刈取るための作業機であり、牧草専用のモーアと雑草を刈るグラスカッター、芝を刈る芝刈機などがある。又、肩掛式刈払機,背負式刈払機や畦草刈機及びモーアなどがある。このモーアには、乗用モーア,リールモーアやロータリーの芝刈機,果樹園内の雑草刈りに最適なオートモーア,牧草モーア,フライングモーア,ハンマーナイフモーアなどがある。   In general, a mower is a working machine for cutting pastures and wild grasses, and there are mowers dedicated to pastures, grass cutters for cutting weeds, and lawn mowers for cutting grass. In addition, there are shoulder-type brush cutters, backpack-type brush cutters, mowers and mowers. The mowers include a riding mower, a reel mower, a rotary lawn mower, an auto mower that is best for weeding in an orchard, a pasture mower, a flying mower, and a hammer knife mower.

また従来、道路沿いの平地や土手などの草刈り作業、特に、高速道路などの草刈り作業を行う際には肩掛式刈払機が使用され、ハンドルを左右に振って回転刃が左右に振られて広範囲を草刈りしている。この時、肩掛式刈払機を使用すると、回転刃によって、小石や株などの破片がはじき飛ばされ、車に激突する恐れがあるため、1人が肩掛式刈払機で草刈りを行い、他の1人が小石や破片の飛散防止用のネットを道路側に立設させると共に草刈り作業者の横に並び、草刈り作業の進行に合せて一緒に進行し、車側に小石や破片が飛散しないように必ず2人で組になって、高速道路の草刈り作業が行われていた。   Conventionally, shoulder mowers have been used for mowing work on flat roads and banks along roads, especially on highways, and the blades are swung left and right, and the rotary blades are swung left and right. Mowing. At this time, if you use a shoulder-type brush cutter, there is a risk that debris such as pebbles and stocks will be repelled by the rotating blades and crash into the car, so one person cuts the grass with the shoulder-type brush cutter and the other person Make sure that the net for preventing scattering of pebbles and debris stands on the side of the road and line up next to the mowing worker, and proceed together with the mowing work so that pebbles and debris do not scatter on the vehicle side. A group of two people mowing the highway.

しかしながら、前記肩掛式刈払機は重量が重く、長時間の作業は不向きであるため、適宜に休憩を取りながら作業が行われていた。また長い雑草を刈ると回転刃にそれが絡み付き易く、草刈り作業の能率を更に悪化させる恐れがあった。しかも高速道路の管理上、草刈り作業は集中して行わなければならないため、多くの作業者を一時的に確保することは大変であると共に重労働であるので人件費が高くなり、作業コストが多く掛っているのが現状である。   However, the shoulder-type brush cutter is heavy and unsuitable for long-time work, so the work was performed while taking breaks as appropriate. In addition, when weeding long weeds, it is easy to get entangled with the rotary blade, which may further deteriorate the efficiency of mowing work. Moreover, since mowing work must be concentrated for highway management, it is difficult to temporarily secure a large number of workers, and labor costs are high due to heavy labor, resulting in high work costs. This is the current situation.

尚、高速道路などの草刈り作業を行う場合、バリカン式の自走式草刈機で行うと、作業性が極めて悪いため、バリカン式の自走式草刈機は殆ど利用されていなかった。   When performing mowing work on an expressway or the like, if the clipper type self-propelled mower is used, the workability is extremely poor, and therefore, the clipper type self-propelled mower has hardly been used.

又、平地や土手などの草刈り作業の作業性を良くするバリカン式の自走式草刈機として、特開平10−243716号が提案されている。この構造は、草刈刃体が進行方向に対して直角に配置され、幅広い草刈り作業が行えるものである。この目的は、上下の刃板を長手方向に摺動(往復運動)させる駆動伝達構造の重量が軽量化され、作業を確実に行えるようにするためのものである。尚、特開平10−243716号に於いて、上下の刃板を左右に往復せしめると記載されているが、この刃板は長手方向に移動するものであって、本発明のように2枚の刃板が長手方向に移動しながら更に刃板全体が回転刃の如く回動する運動は行えないものであり、本発明とは構造が異なる。しかも特開平10−243716号のバリカン式の自走式草刈機を運搬する際、刃板が草刈機体の前方に設けられており、刃板が前方で大きな面積を占めているので、車の荷台に自走式草刈機を積込む時やそれを下ろす時には、露出した刃板が邪魔になると共に刃板が周囲のものに当り易く、危険なものになり易くなると共に、刃板が当ると、長い刃板が曲り易く、作動不良が起き易かった。   Japanese Patent Laying-Open No. 10-243716 has been proposed as a clipper type self-propelled mower that improves the workability of mowing work such as on a flat ground or bank. In this structure, the mowing blades are arranged at right angles to the traveling direction, and a wide range of mowing work can be performed. The purpose of this is to reduce the weight of the drive transmission structure that slides the upper and lower blade plates in the longitudinal direction (reciprocating motion), and to ensure work. In JP-A-10-243716, it is described that the upper and lower blade plates are reciprocated to the left and right. However, the blade plates move in the longitudinal direction, and two sheets as in the present invention are used. While the blade plate is moved in the longitudinal direction, the entire blade plate cannot be rotated like a rotary blade, and the structure is different from the present invention. Moreover, when carrying the clipper type self-propelled mower of JP-A-10-243716, the blade plate is provided in front of the mower body, and the blade plate occupies a large area in the front. When loading or lowering a self-propelled mower on the exposed blade plate, it becomes an obstacle and the blade plate easily hits the surroundings, making it dangerous, and if the blade plate hits, Long blade plate was easy to bend and malfunction was easy to occur.

更に、草刈刃体を回転させながら且つ操作杆の中間に回転軸(本発明の支軸に相当する)を垂設し、この回転軸に操作杆の後方に長手方向の長窓(本発明の長穴に相当する)を形成し、この長窓に腕杆の先端部に立設した駆動ピンを嵌合せしめ、この腕杆の先端部に切断工具を設け、この切断工具と回転軸とに伝動装置を介在せしめ、回転軸によって、丸鋸若しくはチェーン・ソーの切断工具が左右に回動させた構造のものが、実公昭59−27705号「自動刈払機」に開示されている。これは、従来の肩掛式刈払機が使用され、人力でハンドルを左右に振って回転刃が左右に振られて広範囲を草刈りする動作を、自動的に行うだけのものである。   Further, a rotating shaft (corresponding to the support shaft of the present invention) is suspended in the middle of the operation rod while rotating the grass cutting blade body, and a long window (longitudinal direction of the present invention) is placed behind the operating rod on the rotation shaft. A drive pin erected at the tip of the armband, and a cutting tool is provided at the tip of the armchair. Japanese Utility Model Publication No. 59-27705 “Automatic Brush Cutter” discloses a structure in which a circular saw or a chain saw cutting tool is rotated left and right by a rotating shaft with a transmission interposed. This is a conventional shoulder-type brush cutter, which automatically performs an operation of mowing a wide range by swinging the handle left and right manually and swinging the rotary blade left and right.

このため、草刈刃体が丸鋸若しくはチェーン・ソーであり、従来から行われている高速道路などの草刈り作業を行う際に使用される肩掛式刈払機と同様に、回転する丸鋸若しくはチェーン・ソーよって、小石や株などの破片がはじき飛ばされ、車に激突する恐れがあるため、従来と同様に、1人が自動刈払機で草刈りを行い、他の1人が小石や破片の飛散防止用のネットを道路側に立設させると共に草刈り作業者の横に並び、草刈り作業の進行に合せて一緒に進行し、車側に小石や破片が飛散しないように必ず2人で組になって、高速道路などの草刈り作業を行わなければならなかった。更に回転する丸鋸若しくはチェーン・ソーが機体よりも前側に突出して長く設けられているため、小型トラックや普通車の荷台に積込むことが出来ず、運搬作業が限定されていた。又、前記丸鋸若しくはチェーン・ソーが剥き出しであるため、上記自動刈払機を積込む作業やそれを下ろす作業が危険であると共に丸鋸若しくはチェーン・ソーが周囲のものに当り易いものであった。   For this reason, the cutting blade body is a circular saw or chain saw, and the rotating circular saw or chain As saws may cause debris such as pebbles and stocks to be repelled and crash into the car, one person mows with an automatic brush cutter and the other one prevents pebbles and debris from scattering. The nets are set up on the road side and lined up next to the mowing workers, proceeding together as the mowing work progresses, and always make a group of two people so that pebbles and debris do not scatter on the car side, We had to do mowing work on the highway. Furthermore, since a rotating circular saw or chain saw protrudes forward from the machine body and is long, it cannot be loaded on the platform of a small truck or an ordinary vehicle, and transportation work is limited. Also, since the circular saw or chain saw is bare, the work of loading the automatic brush cutter and the operation of lowering it are dangerous and the circular saw or chain saw is easy to hit the surroundings. .

特開平10−243716号公報JP-A-10-243716 実公昭59−27705号公報Japanese Utility Model Publication No.59-27705

本発明は草刈り作業が1人で楽に且つ確実に行えると共に小石や株などの破片の飛散を気にすることなく作業が行え、且つ、狭い幅の草刈りや縁石などに沿った草刈りも可能となる自走式草刈機を提供することを目的とする。   According to the present invention, the mowing operation can be performed easily and reliably by one person, the operation can be performed without worrying about the scattering of debris such as pebbles and stocks, and the mowing along a narrow width mowing or curb can be performed. The purpose is to provide a self-propelled mower.

本発明は上記現状に鑑み成されたものであり、つまり、バリカン方式の草刈刃体の基部を支点として左右に振られる揺動手段を備え、該揺動手段が、多数の刃部を並設した2枚の刃板を重ね合せて長手方向に摺動自在に支持すると共にその内部に摺動機構を設けた支持ケースと、エンジン側に連結する刃駆動軸と、該刃駆動軸に挿入して一端を支持ケースに固着させると共にベアリングを介在させて支持ケースが回動可能に支持されるための中空軸と、チェーン機構部と、該チェーン機構部のチェーン大歯車を軸支する支軸が固着されると共に長穴を有したカム板と、該カム板の長穴に沿って摺動するピンを有した回転板とから成され、この回転板が回転されるための回転板駆動手段を備えると共に該回転板駆動手段にクラッチを設けた構造とする。また回転板駆動手段が、エンジン側から水平に突出したプーリー駆動軸と、該プーリー駆動軸の回転力を伝達する際に介在させるプーリー機構部及びギアボックスと、該ギアボックスから下方へ突出すると共に回転板と固着する回転軸と、から少なくとも成されたものとすると良く、又、前記カム板の長穴をS字状に設けると良い。   The present invention has been made in view of the above-described situation. That is, the present invention includes swinging means that swings to the left and right with the base of a clipper-type mowing blade as a fulcrum, and the swinging means includes a large number of blades arranged in parallel. The two blade plates are overlapped and supported so as to be slidable in the longitudinal direction, and a support case provided with a sliding mechanism therein, a blade drive shaft connected to the engine side, and a blade drive shaft inserted into the blade drive shaft. A hollow shaft for fixing the one end to the support case and rotatably supporting the support case through a bearing, a chain mechanism portion, and a support shaft for supporting the chain large gear of the chain mechanism portion. A rotating plate driving means for rotating the rotating plate is composed of a cam plate fixed and having a long hole, and a rotating plate having a pin that slides along the long hole of the cam plate. And a structure provided with a clutch in the rotary plate driving means To. The rotating plate driving means protrudes downward from the gear box, a pulley driving shaft projecting horizontally from the engine side, a pulley mechanism part and a gear box interposed when transmitting the rotational force of the pulley driving shaft, and It is preferable that the rotation plate is at least composed of a rotation shaft fixed to the rotation plate, and the long hole of the cam plate is provided in an S shape.

請求項1のようにエンジンを搭載した自走式草刈機の草刈刃体(1)がバリカン方式であり、該草刈刃体(1)の基部(1b)を支点として左右に振られる揺動手段(A)を備え、該揺動手段(A)が、多数の刃部を並設した2枚の刃板(1a)を重ね合せて長手方向に摺動自在に支持すると共にその内部に摺動機構を設けた支持ケース(2)と、前記エンジン側に連結する刃駆動軸(3)と、該刃駆動軸(3)に挿入して一端を支持ケース(2)に固着すると共にベアリング(4)を介在させて支持ケース(2)が回動可能に支持されるための中空軸(5)と、チェーン機構部(6)と、該チェーン機構部(6)のチェーン大歯車(61)を軸支する支軸(64)が固着されると共に長穴(71)を有したカム板(7)と、該カム板(7)の長穴(71)に摺動するピン(81)を有した回転板(8)とから成され、この回転板(8)が回転されるための回転板駆動手段(B)を少なくとも備えることにより、草刈り作業が1人で楽に且つ確実に行えると共に小石や幹などの破片の飛散を気にすることなく作業が行える。このため、高速道路などの草刈り作業以外に、市街地の公園や緑地帯の草刈りを行っても、小石や草などの飛散が殆どなくなると共に、例え跳ね飛んでも従来の回転刃に比べて飛ぶ距離が極めて短いため、近くに子供や大人がいても、小石などの飛散を気にすることなく草刈り作業が行えるものとなる。しかも長い雑草を刈っても草刈刃体(1)にそれが絡み付く心配がないので、効率良く草刈り作業が行えるものとなる。   The mowing blade (1) of the self-propelled mower mounted with the engine as in claim 1 is a clipper type, and the swinging means is swung left and right with the base (1b) of the mowing blade (1) as a fulcrum. (A), the swinging means (A) supports two slidable plates (1a) with a large number of blades arranged side by side and supports them slidably in the longitudinal direction, and slides within them. A support case (2) provided with a mechanism, a blade drive shaft (3) connected to the engine side, and inserted into the blade drive shaft (3) to fix one end to the support case (2) and a bearing (4 ) With a hollow shaft (5) for rotatably supporting the support case (2), a chain mechanism (6), and a chain large gear (61) of the chain mechanism (6). A cam plate (7) having a support shaft (64) to be supported and having a long hole (71) and a long hole (71) of the cam plate (7). A rotary plate (8) having a moving pin (81) and at least a rotary plate drive means (B) for rotating the rotary plate (8) makes it possible for one person to cut grass. It can be done easily and reliably, and work can be done without worrying about the scattering of pebbles and trunks. For this reason, in addition to mowing work such as highways, there is almost no scattering of pebbles or grass even when mowing in parks and green areas in urban areas. Because it is extremely short, even if there are children or adults nearby, mowing work can be done without worrying about the scattering of pebbles. Moreover, even if long weeds are cut, there is no concern that they will get entangled with the cutting blade (1), so that the mowing work can be performed efficiently.

又、回転板駆動手段(B)にクラッチ(13)を設けることにより、回転力の伝達を切断して揺動手段(A)が停止状態になり、草刈刃体(1)の左右振れを止めることが出来るため、小石や木片などを発見した際にそれらに草刈刃体(1)が触れずに避けることが可能となり、より安全に草刈り作業が行えるものとなると共に刈り残しが生じた際には、そこで草刈刃体(1)が停止状態で草を刈り続けることが出来るため、刈り残さずに背の高い草などでも確実に刈り取ることが可能となる。更に草刈刃体(1)の回動(揺動)角度が任意に止めることが出来るため、狭い幅の草刈りが行え、且つ、縁石やブロックなどに沿って草刈り作業が行えるものとなる。   Further, by providing the clutch (13) in the rotating plate driving means (B), the transmission of the rotational force is cut off, the swinging means (A) is stopped, and the left-right swing of the mowing blade (1) is stopped. Therefore, when pebbles or wood chips are discovered, the mowing blade (1) can be avoided without touching them, so that mowing work can be performed more safely and uncutting occurs. Therefore, since the grass cutting blade (1) can continue to cut the grass in the stopped state, it is possible to surely cut even the tall grass without leaving the cutting. Further, since the rotation (swinging) angle of the mowing blade (1) can be arbitrarily stopped, mowing with a narrow width can be performed, and mowing work can be performed along curbs, blocks, and the like.

請求項2のように回転板駆動手段(B)として、エンジン側から水平に突出したプーリー駆動軸(9)と、該プーリー駆動軸(9)の回転力を伝達する際に介在させるプーリー機構部(10)及びギアボックス(11)と、該ギアボックス(11)から下方へ突出すると共に回転板(8)と固着する回転軸(12)と、から少なくとも成す構造とすることにより、回転板(8)以外は既存の部品がそのまま使用できるため、極めて簡単で且つコストを掛けずに回転板駆動手段(B)と成すことが出来るものとなる。   3. A pulley drive shaft (9) projecting horizontally from the engine side as a rotary plate drive means (B) as in claim 2, and a pulley mechanism portion interposed when transmitting the rotational force of the pulley drive shaft (9) (10) and a gear box (11), and a rotating plate (12) projecting downward from the gear box (11) and fixed to the rotating plate (8). Except for 8), since existing parts can be used as they are, the rotating plate driving means (B) can be formed very easily and without cost.

請求項3に示すようにカム板(7)の長穴(71)をS字状に設けることにより、滑らかなカム板(7)の揺動が可能となる。このため、振動が小さなものとなると共により確実に草刈り作業が行えるものとなる。   By providing the elongated hole (71) of the cam plate (7) in an S shape as shown in claim 3, the cam plate (7) can be smoothly swung. For this reason, the vibration becomes small and the mowing operation can be performed more reliably.

本発明の実施形態の要部を示す説明図である。It is explanatory drawing which shows the principal part of embodiment of this invention. 本発明の作用を示す説明図である。It is explanatory drawing which shows the effect | action of this invention. 本発明の概略全体を示す説明図である。It is explanatory drawing which shows the outline whole of this invention.

本発明は高速道路などの草刈り作業が1人で楽に且つ小石などの飛散を気にすることなく作業が行えるという目的を、2枚の刃板(1a)を長手方向に摺動させるバリカン方式の草刈刃体(1)と成すと共に該草刈刃体(1)が回転刃の如く左右に半周近く振られるための揺動手段(A)を少なくとも備えることにより実現した。   The purpose of the present invention is to use a clipper method in which two blades (1a) are slid in the longitudinal direction so that the mowing work on a highway can be easily performed by one person without worrying about scattering of pebbles and the like. This is realized by comprising at least a swinging means (A) for forming the grass cutting blade (1) and swinging the grass cutting blade (1) to the left and right nearly half a circumference like a rotary blade.

図1は本発明の実施形態の要部を示す図であり、この図に基づいて説明する。(A)は草刈刃体(1)の基部(1b)を支点として図中の矢印のように左右方向に振るための揺動手段である。この揺動手段(A)には、多数の刃部を並設した2枚の刃板(1a)を重ね合せて長手方向に摺動するバリカン方式の草刈刃体(1)と、該草刈刃体(1)の2枚の刃板(1a)を長手方向に摺動自在に支持すると共にその内部に図示しない摺動機構を設けた支持ケース(2)と、エンジン側に連結する垂設した刃駆動軸(3)と、該刃駆動軸(3)に挿入して一端を支持ケース(2)に固着させると共にベアリング(4)が介在されて前記支持ケース(2)を回動可能に支持するための中空軸(5)と、その中空軸(5)を回動させるためのチェーン機構部(6)と、該チェーン機構部(6)のチェーン大歯車(61)を軸支する支軸(64)の下端と固着されると共に長穴(71)を有したカム板(7)と、該カム板(7)の長穴(71)に挿入して摺動するピン(81)を有した回転板(8)と、がある。又、前記刃駆動軸(3)は2枚の刃板(1a)を摺動して往復運動させるためのものであり、自走式草刈機としては畦草刈機を用いると共にその既設の垂設した軸を利用すると良い。前記チェーン機構部(6)には、チェーン大歯車(61)と、該チェーン大歯車(61)と対向し中空軸(5)に取付けたチェーン小歯車(62)と、チェーン大歯車(61)とチェーン小歯車(62)を連結するチェーン(63)と、チェーン大歯車(61)に取付けた支軸(64)とがある。   FIG. 1 is a diagram showing a main part of an embodiment of the present invention, and will be described based on this figure. (A) is a swinging means for swinging in the left-right direction as indicated by an arrow in the figure with the base (1b) of the mowing blade (1) as a fulcrum. The swinging means (A) includes a clipper-type mowing blade (1) that slides in the longitudinal direction by overlapping two blade plates (1a) having a large number of blades arranged side by side, and the mowing blade. A support case (2) that supports the two blade plates (1a) of the body (1) so as to be slidable in the longitudinal direction and provided with a sliding mechanism (not shown) therein, and is suspended from the engine side. The blade drive shaft (3) and the blade drive shaft (3) are inserted into the support case (2) so that one end is fixed to the support case (2), and the support case (2) is rotatably supported through the bearing (4). Hollow shaft (5), a chain mechanism (6) for rotating the hollow shaft (5), and a support shaft for pivotally supporting the chain large gear (61) of the chain mechanism (6) A cam plate (7) fixed to the lower end of (64) and having a long hole (71), and inserted into the long hole (71) of the cam plate (7) and slid Rotating plate having a lupine (81) and (8), there is. The blade drive shaft (3) is for sliding and reciprocating the two blade plates (1a). A self-propelled mower is used as a self-propelled mower and its existing vertical installation. It is good to use the axis which was done. The chain mechanism portion (6) includes a chain large gear (61), a chain small gear (62) attached to the hollow shaft (5) so as to face the chain large gear (61), and a chain large gear (61). And a chain (63) for connecting the chain small gear (62) and a support shaft (64) attached to the chain large gear (61).

尚、前記摺動機構は、草刈刃体(1)の2枚の刃板(1a)を長手方向に摺動し且つ往復運動するバリカン方式の一般的な機構を用いれば良い。又、前記中空軸(5)の上端は機体側に取付けられている。更に前記草刈刃体(1)は、図3に示すように全長の半分以上が機体の下部に隠れると共に機体の前方へ突出する草刈刃体(1)の長さとしては全長の3分の1程度とするのが好ましい。この時、突出する草刈刃体(1)の長さを短くすることにより、本発明品が小型トラックや普通車の荷台へ容易に積込むことが可能になると共に草刈刃体(1)の露出が少なくなればより安全なものとなるのである。   The sliding mechanism may be a clipper type general mechanism that slides in the longitudinal direction and reciprocates the two blade plates (1a) of the mowing blade (1). The upper end of the hollow shaft (5) is attached to the machine body. Further, as shown in FIG. 3, the mowing blade body (1) has a length of one third of the total length as the length of the mowing blade body (1) which is hidden in the lower part of the airframe and protrudes forward of the airframe as shown in FIG. It is preferable to set the degree. At this time, by shortening the length of the protruding grass cutting blade (1), the product of the present invention can be easily loaded on the platform of a small truck or an ordinary vehicle and the grass cutting blade (1) is exposed. If there is less, it will be safer.

(B)はエンジンを搭載した自走式草刈機のエンジン側から水平に突出したプーリー駆動軸(9)によって、回転板(8)を回転させるための回転板駆動手段であり、該回転板駆動手段(B)には、プーリー駆動軸(9)と、その回転力を伝達する際に介在させるプーリー機構部(10)及びギアボックス(11)と、該ギアボックス(11)から下方へ突出すると共にその下端を回転板(8)に固着した回転軸(12)と、回転板駆動手段(B)に設けたクラッチ(13)と、クラッチ(13)を操作するための操作レバー(14)と、該操作レバー(14)とハンドル側で操作するレバー間を連結するワイヤー(15)と、が少なくともある。又、前記プーリー機構部(10)には、プーリー駆動軸(9)に取付けた駆動プーリー(101)と、該駆動プーリー(101)と対向し且つギアボックス(11)の軸に取付けた従属プーリー(102)と、ベルト(103)とがある。   (B) is a rotating plate driving means for rotating the rotating plate (8) by a pulley driving shaft (9) horizontally projecting from the engine side of the self-propelled mower mounted with the engine. The means (B) includes a pulley drive shaft (9), a pulley mechanism (10) and a gear box (11) that are interposed when transmitting the rotational force, and projects downward from the gear box (11). And a rotary shaft (12) whose lower end is fixed to the rotary plate (8), a clutch (13) provided in the rotary plate drive means (B), and an operation lever (14) for operating the clutch (13). There is at least a wire (15) for connecting between the operation lever (14) and the lever operated on the handle side. The pulley mechanism (10) includes a drive pulley (101) attached to the pulley drive shaft (9), and a slave pulley facing the drive pulley (101) and attached to the shaft of the gear box (11). (102) and a belt (103).

次に本発明の作用を図2に基づいて説明する。先ず回転板(8)のピン(81)の位置がaの位置に来ると、カム板(7)は実線部分のように水平となる。次に回転板(8)が図1に示す矢印のように右回転すると、カム板(7)が徐々に上方へ移動し、ピン(81)の位置がbの位置に来ると、カム板(7)は一番上方へ移動し二点鎖線部分のように傾く。その後、徐々に下方へ移動する。そして回転板(8)のピン(81)の位置がcの位置に来ると、カム板(7)は水平となる。更に回転板(8)が回転すると、カム板(7)は徐々に下方へ移動する。そしてピン(81)の位置がdの位置に来ると、カム板(7)は一番下方へ達し点線部分のように傾く。その後、カム板(7)が徐々に上方へ移動し、ピン(81)の位置がaの位置に来ると、カム板(7)は1往復するのである。従って、カム板(7)の揺動範囲は、ピン(81)の位置がa〜bの位置に移動すると、図中の二点鎖線矢印のように回転し、ピン(81)の位置がb〜dの位置に移動すると、図中の実線矢印のように戻されながら回転し、更にピン(81)の位置がd〜aの位置に移動すると、図中の点線矢印のように回転され、始めの位置に達するのである。このようにカム板(7)は回転板(8)のピン(81)によって左右に揺動されるのである。   Next, the operation of the present invention will be described with reference to FIG. First, when the position of the pin (81) of the rotating plate (8) reaches the position a, the cam plate (7) becomes horizontal as shown by the solid line portion. Next, when the rotating plate (8) rotates clockwise as shown by the arrow in FIG. 1, the cam plate (7) gradually moves upward, and when the position of the pin (81) reaches the position b, the cam plate ( 7) moves to the top and tilts like a two-dot chain line. Then, it moves downward gradually. When the position of the pin (81) of the rotating plate (8) reaches the position c, the cam plate (7) becomes horizontal. When the rotating plate (8) further rotates, the cam plate (7) gradually moves downward. When the position of the pin (81) reaches the position d, the cam plate (7) reaches the lowest position and tilts like a dotted line portion. Thereafter, when the cam plate (7) gradually moves upward and the position of the pin (81) reaches the position a, the cam plate (7) reciprocates once. Therefore, the swing range of the cam plate (7) is rotated as indicated by the two-dot chain line arrow in the figure when the position of the pin (81) is moved to the position ab, and the position of the pin (81) is b. When moving to the position of -d, it rotates while returning as indicated by the solid line arrow in the figure, and when the position of the pin (81) is further moved to the position of d-a, it is rotated as indicated by the dotted line arrow in the figure, The starting position is reached. Thus, the cam plate (7) is swung left and right by the pin (81) of the rotating plate (8).

この時、カム板(7)の回転と共にチェーン大歯車(61)が回動する。このチェーン大歯車(61)が回動することにより、チェーン小歯車(62)がチェーン(63)を介して回動される。すると、草刈刃体(1)は、カム板(7)の揺動範囲(角度)よりも拡大され、左右に揺動するのである。この草刈刃体(1)の揺動角度は、チェーン大歯車(61)とチェーン小歯車(62)の歯数によって拡大率が決まる。この草刈刃体(1)の揺動角度としては120度〜170度とするのが、草刈り効率の点から好ましい。   At this time, the chain large gear (61) rotates with the rotation of the cam plate (7). As the chain large gear (61) rotates, the chain small gear (62) rotates through the chain (63). Then, the mowing blade body (1) is expanded from the swinging range (angle) of the cam plate (7) and swings left and right. The swinging angle of the grass cutting blade (1) is determined by the number of teeth of the chain large gear (61) and the chain small gear (62). The swing angle of the mowing blade (1) is preferably 120 to 170 degrees from the viewpoint of mowing efficiency.

次に本発明の使用方法について説明する。先ずエンジンを始動すると、刃駆動軸(3)が回転し、2枚の刃板(1a)が長手方向に摺動しながら往復運動し、草刈りが可能となる。又、この時、プーリー駆動軸(9)も同時に回転するので、揺動手段(A)と回転板駆動手段(B)も作動されるのである。つまり、プーリー駆動軸(9)の回転力がプーリー機構部(10)を経ると共にギアボックス(11)とクラッチ(13)を介して、回転軸(12)が回転されるのである。この回転軸(12)によって回転板(8)が回転されると共にカム板(7)が図2のように左右に揺動するため、草刈刃体(1)はバリカン方式を採用したことにより、雑草が確実に刈られると共にその草刈刃体(1)が120度〜170度で左右に揺動され、草刈り作業が効率良く行えるものとなる。また長い雑草であっても確実に刈り込まれ、刈り込まれた雑草は長尺な草刈刃体(1)上に乗せられながら両側に自然と寄せられるため、刈り込まれた雑草を回収する際に効率良く行えるものとなる。更にクラッチ(13)を設けることにより、草刈り作業中に於いて、石や幹などを発見した際にはクラッチ(13)を操作することで、揺動手段(A)の回転力の伝達が切断されて停止状態となるため、それらに草刈刃体(1)が触れずに避けることが可能となり、より安全に草刈り作業が行えると共に刈り残しが生じた際には、そこで草刈刃体(1)が左右方向で停止された状態で草を刈り続けることが出来るため、刈り残さずに背の高い草などでも確実に刈り取ることが可能となる。更に石垣や縁石などがあっても、クラッチ(13)を操作することで草刈刃体(1)の揺動方向の角度調節が可能となるため、石垣や縁石などに当ることなくそれに沿って草刈り作業が可能なものとなると共に狭い場所であっても安全に草刈り作業が行えるものとなる。   Next, a method of using the present invention will be described. First, when the engine is started, the blade drive shaft (3) rotates, and the two blade plates (1a) reciprocate while sliding in the longitudinal direction to enable mowing. At this time, since the pulley drive shaft (9) also rotates simultaneously, the swinging means (A) and the rotating plate drive means (B) are also operated. That is, the rotational force of the pulley drive shaft (9) passes through the pulley mechanism (10) and the rotation shaft (12) is rotated through the gear box (11) and the clutch (13). Since the rotating plate (8) is rotated by the rotating shaft (12) and the cam plate (7) swings left and right as shown in FIG. 2, the mowing blade (1) adopts the clipper method. The weeds are surely cut and the cutting blade body (1) is swung to the left and right at 120 to 170 degrees, so that the mowing work can be performed efficiently. In addition, even long weeds are surely pruned, and the pruned weeds are naturally brought to both sides while being put on the long grass cutting blade (1), so it is efficient when collecting the pruned weeds. It can be done. In addition, by providing a clutch (13), when a stone or trunk is discovered during mowing, the clutch (13) is operated to cut off the transmission of the rotational force of the swinging means (A). Therefore, the mowing blade (1) can be avoided without touching them, and the mowing operation can be performed more safely, and when there is an uncut portion, the mowing blade (1) Since the grass can be continuously cut in a state where is stopped in the left-right direction, it is possible to surely cut a tall grass or the like without leaving the cutting. In addition, even if there are stone walls or curbs, the angle of the swinging direction of the mowing blade (1) can be adjusted by operating the clutch (13), so mowing along it without hitting the stone walls or curbs. The work can be performed and the mowing work can be performed safely even in a narrow place.

A 揺動手段
B 回転板駆動手段
1 草刈刃体
1a 刃板
1b 基部
2 支持ケース
3 刃駆動軸
4 ベアリング
5 中空軸
6 チェーン機構部
61 チェーン大歯車
64 支軸
7 カム板
71 長穴
8 回転板
81 ピン
9 プーリー駆動軸
10 プーリー機構部
11 ギアボックス
12 回転軸
13 クラッチ
A Swing means B Rotating plate drive means 1 Mowing blade
1a Blade plate
1b Base 2 Support case 3 Blade drive shaft 4 Bearing 5 Hollow shaft 6 Chain mechanism
61 Chain large gear
64 Support shaft 7 Cam plate
71 Long hole 8 Rotating plate
81 pin 9 pulley drive shaft
10 Pulley mechanism
11 Gearbox
12 Rotating axis
13 Clutch

Claims (3)

エンジンを搭載した自走式草刈機に於いて、草刈刃体(1)がバリカン方式であり、該草刈刃体(1)の基部(1b)を支点として左右に振られる揺動手段(A)を備え、該揺動手段(A)が、多数の刃部を並設した2枚の刃板(1a)を重ね合せて長手方向に摺動自在に支持すると共にその内部に摺動機構を設けた支持ケース(2)と、前記エンジン側に連結する刃駆動軸(3)と、該刃駆動軸(3)に挿入して一端を前記支持ケース(2)に固着させると共にベアリング(4)を介在させて前記支持ケース(2)が回動可能に支持されるための中空軸(5)と、チェーン機構部(6)と、該チェーン機構部(6)のチェーン大歯車(61)を軸支する支軸(64)が固着されると共に長穴(71)を有したカム板(7)と、該カム板(7)の長穴(71)に摺動するピン(81)を有した回転板(8)とから成され、この回転板(8)が回転されるための回転板駆動手段(B)を備えると共に該回転板駆動手段(B)にクラッチ(13)を設けたことを特徴とする自走式草刈機。   In a self-propelled mower mounted with an engine, the mowing blade (1) is a clipper type, and the swinging means (A) is swung from side to side with the base (1b) of the mowing blade (1) as a fulcrum. The oscillating means (A) superimposes two blade plates (1a) having a large number of blades arranged side by side and supports them slidably in the longitudinal direction, and provides a sliding mechanism therein. The support case (2), the blade drive shaft (3) connected to the engine side, the blade drive shaft (3) is inserted into the support case (2) and one end is fixed to the support case (2) and the bearing (4) is attached. A hollow shaft (5) for interposing the support case (2) so as to be rotatable, a chain mechanism portion (6), and a chain large gear (61) of the chain mechanism portion (6) are pivoted. A cam plate (7) to which a supporting shaft (64) is fixed and has a long hole (71), and a long hole (71) in the cam plate (7) A rotating plate (8) having a sliding pin (81), and provided with rotating plate driving means (B) for rotating the rotating plate (8) and the rotating plate driving means (B). A self-propelled mower with a clutch (13). 前記回転板駆動手段(B)が、前記エンジン側から水平に突出したプーリー駆動軸(9)と、該プーリー駆動軸(9)の回転力を伝達する際に介在させるプーリー機構部(10)及びギアボックス(11)と、該ギアボックス(11)から下方へ突出すると共に前記回転板(8)と固着する回転軸(12)と、から少なくとも成された請求項1記載の自走式草刈機。   A pulley drive shaft (9) horizontally projecting from the engine side, a pulley mechanism portion (10) interposed between the rotating plate drive means (B) and the pulley drive shaft (9) when transmitting the rotational force of the pulley drive shaft (9); The self-propelled mower according to claim 1, comprising at least a gear box (11) and a rotating shaft (12) protruding downward from the gear box (11) and fixed to the rotating plate (8). . 前記カム板(7)の長穴(71)がS字状に設けられた請求項1記載の自走式草刈機。
The self-propelled mower according to claim 1, wherein the long hole (71) of the cam plate (7) is provided in an S shape.
JP2010092889A 2010-04-14 2010-04-14 Self-propelled grass mower Pending JP2011217698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010092889A JP2011217698A (en) 2010-04-14 2010-04-14 Self-propelled grass mower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010092889A JP2011217698A (en) 2010-04-14 2010-04-14 Self-propelled grass mower

Publications (1)

Publication Number Publication Date
JP2011217698A true JP2011217698A (en) 2011-11-04

Family

ID=45035469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010092889A Pending JP2011217698A (en) 2010-04-14 2010-04-14 Self-propelled grass mower

Country Status (1)

Country Link
JP (1) JP2011217698A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109451958A (en) * 2018-11-06 2019-03-12 常州汉森机械股份有限公司 The mowing-apparatus and grass trimmer of automatic beat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109451958A (en) * 2018-11-06 2019-03-12 常州汉森机械股份有限公司 The mowing-apparatus and grass trimmer of automatic beat
CN109451958B (en) * 2018-11-06 2024-03-26 常州汉森机械股份有限公司 Automatic deflection mowing device and mowing machine

Similar Documents

Publication Publication Date Title
CN205961845U (en) Mild lawn mower takes action
CN201742756U (en) Pruning car for afforestation
CN205030210U (en) Self -propelled hedgeclipper
KR100633396B1 (en) Weed cutting machine for excavator
CN106962033A (en) Self-propelled hedge trimming scavenging machine
US9867332B2 (en) Operationally tiltable counter rotating twin blade mowing deck
CN207124921U (en) A kind of omnibearing stereo formula hay mover
CN204968651U (en) Self -propelled rhombus frame hedgeclipper
US4314435A (en) Foliage trimmer
JP2011217698A (en) Self-propelled grass mower
JPH1175544A (en) Working car for tree pruning
KR101129793B1 (en) Sawing device for cutting branch
JP2012147718A (en) Grass mower
CN205431063U (en) High -efficient adjustable lawn mower in gardens
KR101652964B1 (en) Weed cutting machine for excavator
CN212573560U (en) Portable forest fosters pruning brush cutter
CN109716914A (en) A kind of simple grass trimmer
RU127579U1 (en) MACHINE FOR GRINDING WOODY-SHRUBBLE VEGETATION ON THE ROOT
JP6315737B1 (en) Grass tray and mower
JP3682948B2 (en) Mower
US911073A (en) Lawn-trimmer.
CN217284070U (en) Weeding device for landscaping
US20050050873A1 (en) Tractor mountable brush cutting device
KR102433529B1 (en) Weeding device for excavator
KR101552431B1 (en) Weeding weeds for excavators Excavators configured device and the device