JP3750322B2 - Walking mower - Google Patents

Walking mower Download PDF

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Publication number
JP3750322B2
JP3750322B2 JP33099997A JP33099997A JP3750322B2 JP 3750322 B2 JP3750322 B2 JP 3750322B2 JP 33099997 A JP33099997 A JP 33099997A JP 33099997 A JP33099997 A JP 33099997A JP 3750322 B2 JP3750322 B2 JP 3750322B2
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JP
Japan
Prior art keywords
handle
walking
attached
front wheel
support 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
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JP33099997A
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Japanese (ja)
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JPH11137047A (en
Inventor
宣弘 井手
聡 森田
好彦 鶴本
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.)
ATECS CORP
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ATECS CORP
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
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Priority to JP33099997A priority Critical patent/JP3750322B2/en
Priority to JP10122914A priority patent/JPH11146719A/en
Publication of JPH11137047A publication Critical patent/JPH11137047A/en
Application granted granted Critical
Publication of JP3750322B2 publication Critical patent/JP3750322B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、畦道や農道あるいは傾斜地等に生えている雑草を刈り取る歩行型草刈機で、特に、傾斜地を刈り場合に楽に作業が行えるようにするものである。
【0002】
【従来の技術】
歩行型の草刈機として、例えば、特許第2517191号の如く、前後の走行輪間に前後方向の軸を中心に左右揺動して刈刃の回転切刃面が水平から左右に傾くようにして畦道や左右の傾斜地に生えている雑草を刈り取るようにしたものや、特許第2620676号の如く、畦の道を刈る主草刈装置とこの主草刈装置に対して傾いて傾斜地を刈る副草刈装置を設け、畦道と畦道の端から続く短い傾斜地とに生えている雑草を同時に刈り取るようにしたもの等がある。
【0003】
【発明が解決しようとする課題】
前記従来の歩行型草刈機は、操向ハンドル杆が機体の後上方に向かって立設され、このハンドル杆先端の握り部を作業者が持って歩行しながら作業を行うものであるため、傾斜地を刈る場合には、作業者が傾斜面を歩かなければならず滑り易く危険である。
そこで本発明では、作業者が畦道を歩きながら草刈機の機体のみを傾斜地に沿って走行させて雑草を刈り取る作業が容易に行えるようにすることを課題とする。
【0004】
【課題を解決するための手段】
本発明では、前側の刈り刃1,1と後側の走行輪2とを装備した機体3の上側に少なくとも左右から後方へ回動固定可能にハンドル杆4を立設し該ハンドル杆4の先端に操向ハンドル5を設けた歩行型草刈機において、機体3から前方に向けて一輪の前輪6を支持する前輪支持杆7を突設し、この前輪支持杆7の先端に操向ハンドル5までの長さを有する吊り紐8を設けて歩行型草刈機を構成した。
【0005】
【発明の作用及び効果】
前記構成の歩行型草刈機で傾斜面の草を刈る場合には、ハンドル杆4を機体3の横方向へ傾けて固定し、作業者が畦の上面等の水平な面を歩きながら機体3を傾斜地に沿って走行させる。この際に、作業者は走行ハンドル5と吊り紐8を持って機体が傾斜面からずり落ちたり下方へ向って走行しようとするのを防ぐのであるが、片手で操向ハンドル5を持ち他方の手で吊り紐8を持って機体3をバランス良く楽に支持出来ることになる。
尚、吊り紐8は、前輪支持杆7への取付部近傍を屈曲し難くすることで、吊り紐8を手離した場合に、この吊り紐8が刈り刃1や走行輪2に巻き込まれ難くなる。
【0006】
【実施例】
機体3の中央に設けるギヤケース10の後部にエンジン11を取り付け、このギヤケース10から左右に延ばした支持筒12,13の先端から下方に向けてアーム14,15を設け、このアーム14,15の下端に走行輪2を軸支している。一方のアーム14にはチェン伝動機構を設け、ギヤケース10の出力軸から走行輪2の入力軸に動力を伝動して走行輪2を駆動して走行する。
支持筒12,13の下側には、走行輪2の後上側を覆う機枠カバー16を取り付けている。
【0007】
ギヤケース10の下側に前方へ向けて取付枠17を取り付け、この取付枠17の下側に、伝動ケース18と、刈り刃1,1の回転軌跡を覆う刈刃カバー19と、ギヤケース10から伝動ケース18に動力を伝動する伝動機構20を覆う伝動カバー21を取り付けている。
伝動ケース18は、下方に向けて2本の回転軸22,23を左右振り分け状態に軸支するもので、回転軸22,23の上方突出側にプーリ24,25を固着し、ギヤケース10の出力軸に固着したプーリ26にベルト27を巻き掛けて伝動機構20を構成している。回転軸22,23には、それぞれ帯板状の刈り刃1,1を上下に90°位相をずらせて取り付けている。この回転軸22,23は、上方より見て左右の刈刃1,1が前側で中央に向うよう逆回転する。
【0008】
刈刃カバー19は、刈り刃1,1の回転軌跡の外側から走行輪2の両側部へ向け挟めた外側面28と、刈り刃1,1の上面から機体カバー16までに到る上側面29とを一体的に形成し、この刈刃カバー19の前部は斜め前上方に向けて起立し、その前端30は左右中央が後方に向けて凹んだ形状としていて、この前端に沿ってガイド杆31を取り付けている。
【0009】
走行輪2は、図3に示す如く、左右両側部52,53が大径で中間部54を小径としていて刈り刃1,1で刈り倒した雑草が中間部54の下側を通過し易くしている。
走行輪2の両側部52,53の外側端には、周面に凹凸を形成したゴムグラ55を取り付け、両側部52,53の外周面には二つの突起を形成した板状ラグ56を周方向から約5°傾けて取り付けている。この板状ラグ56の高さはゴムラグ55の突出高さよりも低くしていて、舗装道路を走行する場合にはゴムラグ55のみが接地するようにしている。
【0010】
走行輪2の中間部54の周面には、側面視で三角状に突出する板状ラグ57をその板面が周方向に対して約5°傾くように取り付けている。この板状ラグ57の突出高さは、両側部52,53の外周よりも小さくしている。
前記の板状ラグ56,57は、走行輪2に駆動力を付与し、かつ草が絡み付かないようにするもので、周方向に対して5°から30°程度の傾きとすればよい。
機枠カバー16から各板状ラグ56,57の間で走行輪2の外周面に向けて周面にごく接近させてスクレパー58,59を突設している。
【0011】
32は、ギヤケース10を覆うカバーで、その上部に前輪支持杆7を取り付けている。
前輪支持杆7は機体3の左右中央から前方に向けて延ばしその先端に固着したブラケット33に前輪6を軸支している。ブラケット33の上部に取付部34を設け、この取付部34に吊り紐8のフック35を引っ掛けている。35はビニール管で吊り紐8を曲り難くして吊り紐8が緩んだ場合に刈り刃1,1に巻き込まれ難くしている。
【0012】
ギヤケース10の上部には、取付台37を取り付け、この取付台37にハンドル基台38を水平回動可能に取り付けている。39はハンドル基台38の取付台37に対する水平回動位置を固定する固定具で、真後位置から左右20°,50°,70°,90°の各回動位置で固定できるようにしている。
ハンドル基台38には支軸40立設し、この支軸40の上部に後方へ向けてブラケット44を突設し、このブラケット44にハンドル杆4の基部を横軸46で上下回動可能に枢支している。ハンドル杆4の下端に固着した係止片45の凹部に係止ピン43が係合することでハンドル杆4の傾斜起立角度を変更できるようにしている。
【0013】
また、支軸40には、前記ブラケット44と逆方向に取手42を突設し、支軸40部を覆うカバー41に開口部47を形成し、この開口部21から作業者の手を取手42に差し込んで、機体3を持ち上げられるようにしている。
ハンドル杆4の先端にはループ状の操向ハンドル5を取り付け、この操向ハンドル5にエンジン11に繋がるアクセルレバー48を取り付け、操向ハンドル5とハンドル杆4との取付部にハンドル杆4の上下回動固定具43にワイヤーで連結した上下固定レバー49と、エンジン11から走行輪2への動力伝動部に設けたクラッチを操作する走行クラッチレバー50とを設けている。この走行クラッチレバー50はエンジン11の回転を充分に高速まで上昇させて刈り刃1,1の回転が高まった状態で走行輪2を駆動し、切断抵抗によってエンジン11が停止するのを防ぐためである。
ハンドル杆4の先端近くには、吊り紐8を引っ掛ける係止フック51を取り付けている。
【0014】
図4は、エンジン11を示す斜視図で、エアフィルター61を覆ってカバー枠61を取り付けている。このカバー枠61にはさらにヒンジ63でフィルター枠62を開閉自在に取り付け、フィルター枠62の内部にスポンジ等のフィルター63を入れて、雑草の切断片等の比較的大きなごみがエアフィルター61に入り込まないようにしている。
【0015】
以上の如く構成した歩行型草刈機を平地で使用する場合には、上下固定レバー49を操作して操向ハンドル5が作業者の持ち易い高さとなるようにして、前進走行しながら草を刈り倒す。刈り倒された草は刈刃1,1の回転で左右中央に集まりながら走行輪2の左右中央部下方を通過して後方へ排出される。
畦道を歩きながら傾斜面の雑草を刈る場合には、図5に示す如く、ハンドル杆4を機体3の横方向に固定して、操向ハンドル5を片手で持って他方の手で吊り紐8を持って横向きに歩行しながら作業を行う。吊り紐8で機体3の前方が下方へ向かうのを防ぎながら作業者が平垣地を歩いて作業ができるので安全で楽である。
【図面の簡単な説明】
【図1】本発明実施例の平面図である。
【図2】本発明実施例の側断面図である。
【図3】本発明実施例の一部拡大平面図である。
【図4】本発明実施例の一部拡大斜視図である。
【図5】本発明実施例の作業状態を示す斜視図である。
【符号の説明】
1 刈り刃
2 走行輪
3 機体
4 ハンドル杆
5 操向ハンドル
6 前輪
7 前輪支持杆
8 吊り紐
[0001]
BACKGROUND OF THE INVENTION
The present invention is a walking-type grass mower that cuts weeds growing on a road, a farm road, an inclined land, and the like, and in particular, enables easy work when cutting an inclined land.
[0002]
[Prior art]
As a walk-type mower, for example, as in Japanese Patent No. 2517191, the rotary cutting blade surface of the cutting blade tilts from the horizontal to the left and right by swinging left and right about the front and rear axis between the front and rear traveling wheels. The main weeding device that cuts the weeds that grow on the road and the left and right slopes, and the main grass cutting device that cuts the road of the reed and the auxiliary grass cutting device that cuts the slope and leans against this main grass cutting device. There is one that weeds and mows the weeds that grow on the slope and the short slope that runs from the end of the trail.
[0003]
[Problems to be solved by the invention]
In the conventional walk-type mower, the steering handle 杆 is erected toward the rear upper part of the machine body, and the operator holds the grip part at the tip of the handle し な が ら while walking, so the work is performed on an inclined ground. When mowing, the worker must walk on the inclined surface, which is dangerous because it is slippery.
Therefore, an object of the present invention is to enable an operator to easily cut a weed by moving only the body of a mower along a sloping ground while walking along a path.
[0004]
[Means for Solving the Problems]
In the present invention, a handle rod 4 is erected on the upper side of the machine body 3 equipped with the front cutting blades 1, 1 and the rear traveling wheel 2 so as to be rotatable and fixed at least from the left and right to the rear. In the walking type mower provided with the steering handle 5 at the front, a front wheel support rod 7 for supporting the front wheel 6 of one wheel is projected from the body 3 forward, and the steering handle 5 is provided at the tip of the front wheel support rod 7. A walking string mower was constructed by providing a hanging string 8 having a length of.
[0005]
[Action and effect of the invention]
In the case of cutting grass on an inclined surface with the walk-type mower configured as described above, the handle rod 4 is tilted in the lateral direction of the fuselage 3 and fixed, and the operator moves the fuselage 3 while walking on a horizontal surface such as the upper surface of the rod. Drive along slopes. At this time, the operator holds the traveling handle 5 and the hanging strap 8 to prevent the aircraft from sliding off the inclined surface or trying to travel downward, but with the steering handle 5 with one hand, By holding the hanging strap 8 by hand, the airframe 3 can be supported with good balance.
The hanging strap 8 makes it difficult to bend the vicinity of the attachment portion to the front wheel support rod 7, so that the hanging strap 8 is not easily caught in the cutting blade 1 or the traveling wheel 2 when the hanging strap 8 is released. Become.
[0006]
【Example】
The engine 11 is attached to the rear part of the gear case 10 provided in the center of the body 3, the arms 14 and 15 are provided downward from the front ends of the support cylinders 12 and 13 extending from the gear case 10 to the left and right, and the lower ends of the arms 14 and 15. The traveling wheel 2 is pivotally supported. One arm 14 is provided with a chain transmission mechanism, and power is transmitted from the output shaft of the gear case 10 to the input shaft of the traveling wheel 2 to drive the traveling wheel 2 to travel.
A machine frame cover 16 that covers the rear upper side of the traveling wheel 2 is attached to the lower side of the support cylinders 12 and 13.
[0007]
A mounting frame 17 is mounted forward on the lower side of the gear case 10, and a transmission case 18, a cutting blade cover 19 that covers the rotation trajectory of the cutting blades 1, 1, and a transmission from the gear case 10 on the lower side of the mounting frame 17. A transmission cover 21 that covers the transmission mechanism 20 that transmits power is attached to the case 18.
The transmission case 18 supports the two rotary shafts 22 and 23 in a left-right distributed state facing downward, and pulleys 24 and 25 are fixed to the upper projecting side of the rotary shafts 22 and 23 to output the gear case 10. A transmission mechanism 20 is configured by winding a belt 27 around a pulley 26 fixed to a shaft. Band plate-shaped cutting blades 1 and 1 are attached to the rotary shafts 22 and 23 with a 90 ° phase shift in the vertical direction. The rotary shafts 22 and 23 are reversely rotated so that the left and right cutting blades 1 and 1 face toward the center on the front side when viewed from above.
[0008]
The cutting blade cover 19 includes an outer surface 28 sandwiched from the outer side of the rotation trajectory of the cutting blades 1, 1 toward both sides of the traveling wheel 2, and an upper side surface 29 extending from the upper surface of the cutting blades 1, 1 to the body cover 16. , The front portion of the cutting blade cover 19 stands up diagonally forward and upward, and its front end 30 has a concave shape with its left and right center toward the rear, along the front end. 31 is attached.
[0009]
As shown in FIG. 3, the traveling wheel 2 makes it easier for the weeds cut down by the cutting blades 1, 1 to pass through the lower side of the intermediate part 54 with the left and right side parts 52, 53 having a large diameter and the intermediate part 54 having a small diameter. ing.
At the outer ends of both side portions 52 and 53 of the traveling wheel 2, rubber grabs 55 having irregularities formed on the peripheral surface are attached, and plate-like lugs 56 having two protrusions formed on the outer peripheral surfaces of the both side portions 52 and 53 in the circumferential direction. It is attached at an angle of about 5 °. The height of the plate-like lug 56 is set lower than the protruding height of the rubber lug 55, and only the rubber lug 55 is grounded when traveling on a paved road.
[0010]
A plate-like lug 57 protruding in a triangular shape in a side view is attached to the peripheral surface of the intermediate portion 54 of the traveling wheel 2 so that the plate surface is inclined by about 5 ° with respect to the circumferential direction. The protruding height of the plate-like lug 57 is made smaller than the outer peripheries of the side portions 52 and 53.
The plate-like lugs 56 and 57 give a driving force to the traveling wheel 2 and prevent the grass from being entangled, and may be inclined at about 5 ° to 30 ° with respect to the circumferential direction.
Scrapers 58 and 59 project from the machine frame cover 16 between the plate-like lugs 56 and 57 toward the outer peripheral surface of the traveling wheel 2 so as to be very close to the peripheral surface.
[0011]
Reference numeral 32 denotes a cover that covers the gear case 10, and a front wheel support rod 7 is attached to the upper portion thereof.
The front wheel support rod 7 extends forward from the center of the left and right sides of the airframe 3 and pivotally supports the front wheel 6 on a bracket 33 fixed to the front end. An attachment portion 34 is provided on the upper portion of the bracket 33, and the hook 35 of the hanging strap 8 is hooked on the attachment portion 34. No. 35 is a vinyl tube that makes it difficult to bend the hanging string 8 and makes it difficult to be caught in the cutting blades 1 and 1 when the hanging string 8 is loosened.
[0012]
A mounting base 37 is attached to the upper part of the gear case 10, and a handle base 38 is attached to the mounting base 37 so as to be horizontally rotatable. Reference numeral 39 denotes a fixing tool for fixing the horizontal rotation position of the handle base 38 with respect to the mounting base 37 so that the handle base 38 can be fixed at respective rotation positions of 20 °, 50 °, 70 °, and 90 ° from right to left.
A support shaft 40 is erected on the handle base 38, and a bracket 44 is protruded rearward from the upper portion of the support shaft 40, so that the base portion of the handle bar 4 can be turned up and down around the horizontal shaft 46. It is pivotally supported. By engaging the locking pin 43 with the recess of the locking piece 45 fixed to the lower end of the handle bar 4, the tilted upright angle of the handle bar 4 can be changed.
[0013]
Further, a handle 42 projects from the support shaft 40 in the direction opposite to that of the bracket 44, and an opening 47 is formed in the cover 41 covering the support shaft 40 portion. So that the body 3 can be lifted.
A loop steering handle 5 is attached to the tip of the handle 杆 4, an accelerator lever 48 connected to the engine 11 is attached to the steering handle 5, and the handle 杆 4 is attached to an attachment portion between the steering handle 5 and the handle 杆 4. A vertical fixing lever 49 connected to the vertical rotation fixture 43 with a wire and a traveling clutch lever 50 for operating a clutch provided in a power transmission portion from the engine 11 to the traveling wheel 2 are provided. This traveling clutch lever 50 is used to prevent the engine 11 from stopping due to cutting resistance by driving the traveling wheel 2 with the rotation of the cutting blades 1 and 1 increased by sufficiently increasing the rotation of the engine 11 to a high speed. is there.
A locking hook 51 for hooking the hanging strap 8 is attached near the tip of the handle bar 4.
[0014]
FIG. 4 is a perspective view showing the engine 11, and a cover frame 61 is attached to cover the air filter 61. Further, a filter frame 62 is attached to the cover frame 61 with a hinge 63 so that the filter frame 62 can be opened and closed. A filter 63 such as a sponge is placed inside the filter frame 62, and relatively large waste such as cut pieces of weed enters the air filter 61. I am trying not to.
[0015]
When the walking mower configured as described above is used on a flat ground, the vertical steering lever 49 is operated so that the steering handle 5 is at a height that the operator can easily hold, and the grass is cut while traveling forward. knock down. The grass that has been trimmed is gathered at the center of the left and right by the rotation of the cutting blades 1, 1, passes through the lower part of the left and right center of the traveling wheel 2, and is discharged rearward.
When cutting the weeds on the inclined surface while walking along the path, as shown in FIG. 5, the handle bar 4 is fixed in the lateral direction of the machine body 3, the steering handle 5 is held with one hand, and the hanging strap 8 is held with the other hand. Hold and work while walking sideways. It is safe and easy because the operator can walk and work on the flat fence while preventing the front of the machine body 3 from moving downward with the hanging strap 8.
[Brief description of the drawings]
FIG. 1 is a plan view of an embodiment of the present invention.
FIG. 2 is a side sectional view of an embodiment of the present invention.
FIG. 3 is a partially enlarged plan view of an embodiment of the present invention.
FIG. 4 is a partially enlarged perspective view of an embodiment of the present invention.
FIG. 5 is a perspective view showing a working state of the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cutting blade 2 Running wheel 3 Airframe 4 Handle rod 5 Steering handle 6 Front wheel 7 Front wheel support rod 8 Suspension string

Claims (2)

前側の刈り刃(1),(1)と後側の走行輪(2)とを装備した機体(3)の上側に少なくとも左右から後方へ回動固定可能にハンドル杆(4)を立設し該ハンドル杆(4)の先端に操向ハンドル(5)を設けた歩行型草刈機において、機体(3)から前方に向けて一輪の前輪(6)を支持する前輪支持杆(7)を突設し、この前輪支持杆(7)の先端に操向ハンドル(5)までの長さを有する吊り紐(8)を設けてなる歩行型草刈機。A handle rod (4) is erected on the upper side of the fuselage (3) equipped with the front cutting blades (1), (1) and the rear traveling wheel (2) so that it can be pivotally fixed at least from the left and right. In the walking mower having the steering handle (5) at the tip of the handle rod (4), the front wheel support rod (7) that supports the front wheel (6) of one wheel is projected forward from the body (3). A walking type mower provided with a suspension string (8) having a length up to the steering handle (5) at the front end of the front wheel support rod (7). 吊り紐(8)の前輪支持杆(7)への取り付け部近傍を屈曲し難しくてなる請求項1に記載の歩行型草刈機。The walking type mower according to claim 1, wherein it is difficult to bend the vicinity of the attachment portion of the hanging string (8) to the front wheel support rod (7).
JP33099997A 1997-11-14 1997-11-14 Walking mower Expired - Lifetime JP3750322B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP33099997A JP3750322B2 (en) 1997-11-14 1997-11-14 Walking mower
JP10122914A JPH11146719A (en) 1997-11-14 1998-04-16 Walking-type mower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33099997A JP3750322B2 (en) 1997-11-14 1997-11-14 Walking mower

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP10122914A Division JPH11146719A (en) 1997-11-14 1998-04-16 Walking-type mower

Publications (2)

Publication Number Publication Date
JPH11137047A JPH11137047A (en) 1999-05-25
JP3750322B2 true JP3750322B2 (en) 2006-03-01

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Family Applications (2)

Application Number Title Priority Date Filing Date
JP33099997A Expired - Lifetime JP3750322B2 (en) 1997-11-14 1997-11-14 Walking mower
JP10122914A Pending JPH11146719A (en) 1997-11-14 1998-04-16 Walking-type mower

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP10122914A Pending JPH11146719A (en) 1997-11-14 1998-04-16 Walking-type mower

Country Status (1)

Country Link
JP (2) JP3750322B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007094201A1 (en) 2006-02-16 2007-08-23 Kaaz Corporation Transmission device of walking type self-traveling lawn mower

Also Published As

Publication number Publication date
JPH11146719A (en) 1999-06-02
JPH11137047A (en) 1999-05-25

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