JPH0582225U - Lawn mower - Google Patents
Lawn mowerInfo
- Publication number
- JPH0582225U JPH0582225U JP2337792U JP2337792U JPH0582225U JP H0582225 U JPH0582225 U JP H0582225U JP 2337792 U JP2337792 U JP 2337792U JP 2337792 U JP2337792 U JP 2337792U JP H0582225 U JPH0582225 U JP H0582225U
- Authority
- JP
- Japan
- Prior art keywords
- mower
- machine body
- belt
- compression spring
- vertical position
- 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
Links
Landscapes
- Harvester Elements (AREA)
Abstract
(57)【要約】
【目的】 機体に対するモーアの上下位置調節にかかわ
らず、駆動用伝動ベルトの緊張力を常に一定に維持でき
るものを提供する。
【構成】 走行機体の下方に、モーア5を走行機体側の
上下位置調節部材43,43に対して前後一対の揺動リ
ンク44,44を介して吊り下げ支持するとともに、ベ
ルト伝動機構11における駆動側プーリ48とほぼ同一
高さに形成した機体フレーム1側ブラケット50と、従
動側プーリ47とほぼ同一高さに位置するモーアハウジ
ング5a側ブラケット51とに亘り、ロッド52及び圧
縮バネ53を介装して、モーアハウジング5aを伝動ベ
ルトの緊張側方向に弾性押圧するよう構成し、かつ、前
記圧縮バネ53の最大変形量よりも少ない圧縮状態でモ
ーアハウジング5aと機体フレーム1との相対近接移動
を阻止するストッパー56を設けてある。
(57) [Summary] [Purpose] To provide a device that can always maintain the tension of a drive transmission belt constant regardless of the vertical position adjustment of the mower with respect to the aircraft. Constitution: The mower 5 is suspended and supported below the traveling machine body with respect to the vertical position adjusting members 43, 43 on the traveling machine body side through a pair of front and rear swing links 44, 44, and driving of the belt transmission mechanism 11 is performed. The rod frame 52 and the compression spring 53 are interposed between the body frame 1 side bracket 50 formed at substantially the same height as the side pulley 48 and the mower housing 5a side bracket 51 positioned at substantially the same height as the driven side pulley 47. Then, the mower housing 5a is configured to elastically press in the tension side direction of the transmission belt, and relative movement of the mower housing 5a and the machine body frame 1 is performed in a compressed state smaller than the maximum deformation amount of the compression spring 53. A stopper 56 for blocking is provided.
Description
【0001】[0001]
本考案は、走行機体の下方にモーアを上下位置調節自在に装着するとともに、 走行機体側からベルト伝動機構を介して前記モーアに動力を供給するよう構成し てある芝刈機に関する。 The present invention relates to a lawn mower in which a mower is mounted below a traveling machine body so that the vertical position can be adjusted, and power is supplied to the mower from the traveling machine body side via a belt transmission mechanism.
【0002】[0002]
上記芝刈機において、従来では、例えば実開平1−63331号公報に示され るように、機体側の駆動プーリとモーア側の従動プーリとに亘り伝動ベルトを張 設するとともに、この伝動ベルトの途中部にバネにより弾性押圧するテンション プーリを設ける構成が一般的であった。 In the above lawnmower, conventionally, as disclosed in, for example, Japanese Utility Model Laid-Open No. 1-63331, a transmission belt is stretched over a drive pulley on the machine side and a driven pulley on the mower side, and in the middle of the transmission belt. In general, a tension pulley that is elastically pressed by a spring is provided in the portion.
【0003】[0003]
ところが、前記モーアは刈り高さを変更調節するために機体に対して上下位置 変更自在に設けられ、このモーアの位置調節に伴って駆動プーリと従動プーリと の軸芯間距離が変化するにもかかわらず、常に一定のバネ押圧力で緊張力を付与 する構成であるから、上記したような刈り高さ調節を行うと伝動ベルトに対する 緊張力が変化してしまうという弊害があった。 本考案は上記不具合点を解消することを目的としている。 However, the mower is provided so that its vertical position can be freely changed with respect to the machine body in order to change and adjust the cutting height, and the axial center distance between the drive pulley and the driven pulley changes with the adjustment of the mower position. Nevertheless, since the tension is always applied with a constant spring pressing force, the tension on the transmission belt changes when the cutting height is adjusted as described above. The present invention aims to solve the above-mentioned problems.
【0004】[0004]
本考案の特徴構成は、冒頭に記載した芝刈機において、前記モーアを走行機体 側の上下位置調節部材に対して前後一対の揺動リンクを介して吊り下げ支持する とともに、前記ベルト伝動機構における駆動側プーリとほぼ同一高さに形成した 機体フレーム側ブラケットと、従動側プーリとほぼ同一高さに位置するモーアハ ウジング側ブラケットとに亘り、ロッド及び圧縮バネを介装して、モーアハウジ ングを伝動ベルトの緊張側方向に弾性押圧するよう構成し、かつ、前記圧縮バネ の最大変形量よりも少ない圧縮状態でモーアハウジングと機体フレームとの相対 近接移動を阻止するストッパーを設けてある点にある。 According to a characteristic configuration of the present invention, in the lawnmower described at the beginning, the mower is suspended and supported by a pair of front and rear swing links with respect to a vertical position adjusting member on the traveling machine body side, and the drive of the belt transmission mechanism is performed. The frame and frame side brackets, which are formed at approximately the same height as the side pulleys, and the mower housing side brackets, which are located at approximately the same height as the driven pulleys, are equipped with rods and compression springs to transfer the mower housing to the transmission belt. It is configured so as to elastically press in the direction of the tension side, and a stopper is provided to prevent relative close movement of the mower housing and the machine body frame in a compressed state less than the maximum deformation amount of the compression spring.
【0005】[0005]
機体側ブラケットとモーア側ブラケットとの間に介装されるロッド及び圧縮バ ネにより、機体に対してモーアハウジングが両プーリが離間する方向つまり、伝 動ベルトが緊張する側に弾性押圧され、前後揺動リンクにより吊り下げ支持され るモーアハウジングが前記方向に押圧移動可能で、伝動ベルトが緊張力を受け良 好な伝動状態を維持できる。そして、モーアを機体側の調節部材により上下位置 を変更調節した場合であってもモーアハウジングは常に前記ロッド及び圧縮バネ により押圧されるから、高さが変化しても前後揺動リンクの揺動により前後方向 に移動して、前記両プーリの間隔をほぼ一定に維持させることができ、その結果 、モーアハウジングの押圧力、即ちベルト緊張力はほぼ一定に維持される。 又、作業走行に伴ってモーアハウジングに障害物が衝突して、モーアハウジン グが前記バネの弾性押圧力に抗して前記両プーリの間隔が短くなる方向に押し作 用されても、モーアハウジングと機体フレームとがストッパーにより所定距離よ りも近接するのを阻止して伝動ベルトの抜け外れを未然に防止するのである。 The rod and compression vane interposed between the machine-side bracket and the mower-side bracket elastically press the mower housing toward the machine in the direction in which both pulleys are separated from each other, that is, the side where the transmission belt is tensioned. The mower housing suspended and supported by the swing link can be pressed and moved in the above-mentioned direction, and the transmission belt can be tensioned to maintain a favorable transmission state. Even when the vertical position of the mower is changed and adjusted by the adjusting member on the machine side, the mower housing is always pressed by the rod and the compression spring, so that the rocking of the front-back rocking link is prevented even if the height changes. By this, it is possible to move in the front-rear direction and maintain the distance between the two pulleys substantially constant, and as a result, the pressing force of the mower housing, that is, the belt tension force is maintained substantially constant. In addition, even if an obstacle collides with the mower housing as the work travels and the mower housing is pressed against the elastic pressing force of the spring in the direction in which the distance between the pulleys becomes shorter, The stopper prevents the drive frame from coming off by preventing it from coming closer than a predetermined distance to the machine frame.
【0006】[0006]
従って、モーアを機体に対して上下位置調節自在に構成して、位置固定の機体 側駆動プーリと上下動するモーア側プーリとの間の軸芯間距離が変化するもので ありながら、合理的構成により、伝動ベルトの緊張力を常に一定に維持すること ができることとなり、刈り高さ調節にかかわらずモーアの円滑な駆動状態を維持 できるものを提供できるに到った。 Therefore, it is possible to adjust the vertical position of the mower with respect to the machine body so that the axial center distance between the fixed-body-side drive pulley and the vertically moving mower-side pulley changes, but a rational configuration is possible. As a result, the tension of the power transmission belt can be kept constant at all times, and it is possible to provide a mower that can maintain a smooth driving state regardless of the cutting height adjustment.
【0007】[0007]
以下、実施例を図面に基いて説明する。 図1に芝刈機を示している。この芝刈機は、機体前後方向に亘って配設した機 体フレーム1の後部に縦向き出力軸2aを有するエンジン2を搭載するとともに 、エンジン2の下方側に左右一対の駆動後輪3,3を配備し、機体フレーム1の 前端部下方側に左右一対のキャスター輪式の前輪4,4を配設して、前後車輪3 ,4の中間の機体下腹部にモーア5を上下位置調節自在に装着してある。又、エ ンジン2の前部側箇所において機体フレーム1から立設した支持部材6により搭 乗用運転座席7を支持して搭乗運転部Aを設けてあり、この運転座席7の前方側 には運転部ステップ8のみ設けるようにして、運転座席着座状態における前方視 界を良好にするよう構成してある。又、機体フレーム1の後部から機体後方上方 に向けて歩行操縦用ハンドル9を延設して、機体後方側から歩行操縦を行える歩 行操縦部Bを構成してある。 Embodiments will be described below with reference to the drawings. FIG. 1 shows a lawn mower. This lawnmower is equipped with an engine 2 having a vertically oriented output shaft 2a at the rear part of a machine frame 1 arranged in the longitudinal direction of the machine body, and a pair of left and right drive rear wheels 3, 3 are provided below the engine 2. A pair of left and right caster wheel type front wheels 4 and 4 are arranged on the lower side of the front end of the machine body frame 1, and the mower 5 can be vertically adjusted on the lower abdomen of the machine body between the front and rear wheels 3 and 4. It is installed. In addition, at the front side of the engine 2, a boarding operation section A is provided by supporting a boarding driver's seat 7 by a supporting member 6 standing upright from the body frame 1. Only the sub-step 8 is provided so as to improve the front view in the seated state of the driver's seat. Further, a walking steering handle 9 is extended from the rear part of the body frame 1 toward the upper rear side of the body to form a walking control section B capable of performing walking control from the rear side of the body.
【0008】 前記エンジン2の出力軸2aから伝動ベルト10を介して左右静油圧式無段変 速装置H,Hに動力を伝えるよう構成するとともに、ベルト伝動機構11を介し てモーア5に動力を供給するよう伝動系を構成してある。前記各後輪3,3は、 左右各別に静油圧式無段変速装置H,Hにより駆動するよう構成してあり、各無 段変速装置H,Hは、搭乗運転部A及び歩行操縦部Bの夫々において走行操縦操 作可能に構成してある。つまり、図2に示すように、各無段変速装置H,Hの変 速操作軸13,13に、一体回転自在に取付けた変速アーム14,14と変速操 作軸13,13に相対回動自在に外嵌した操作アーム15,15とをバネ16, 16により追随操作可能に連係させ、前記各操作アーム15,15を搭乗運転部 Aにおける変速ペダル17及び歩行操縦部Bに設けた変速操作レバー18のいづ れでも操作できるよう連動連係してある。この操作アーム15,15は、変速ペ ダル17あるいは変速操作レバー18のいづれかの操作により一体的に無段変速 装置Hの中立位置から前進側への増速操作方向に回動するよう構成し、その回動 に伴って、バネ16,16を介して各変速アーム14,14が追随回動して左右 後輪3,3がほぼ同一速度で前進増速操作される。そして、各変速アーム14, 14は、前記操縦ハンドル9における握り操作部9aに左右一対設けた握り操作 レバー19,19あるいは搭乗運転部Aに配設した握り操作レバー20,20の いずれかの握り操作により、無段変速装置Hの中立位置から減速側に向かう方向 に回動操作されるよう連係され、例えば、前記変速操作レバー18の操作により 前進方向に直進走行している場合、片方の握り操作レバーを操作すると、その操 作された側の変速アーム14がバネ力に抗して減速側に操作され、旋回走行が可 能となる。又、中立停止状態から各握り操作レバー19,19を大きく握り操作 すると、後進走行状態に操作されるよう構成してある。尚、変速操作レバー18 は連係途中に皿バネによる摩擦保持部を介装して任意操作位置で位置保持できる よう構成してある。 歩行操縦用の前記握り操作レバー19,19は連係リンク21及び横軸芯周り で回動自在に支持された中継回動部材22を介して連係し、前記変速操作レバー 18も同様に連係リンク23及び中継回動部材24を介して連係してある。又、 モーア5に対するベルトテンションクラッチCの歩行操縦側操作具25も同様に 、連係リンク26及び中継回動部材27を介して連係してある。前記各中継連係 部材22,24,27は同一横軸芯X周りで回動するよう配置してある。Power is transmitted from the output shaft 2 a of the engine 2 to the left and right hydrostatic continuously variable transmissions H and H via the transmission belt 10, and the power is transmitted to the mower 5 via the belt transmission mechanism 11. The transmission system is configured to supply. Each of the rear wheels 3 and 3 is configured to be driven by a hydrostatic continuously variable transmission H, H separately for each of the left and right, and each continuously variable transmission H, H includes a boarding operation unit A and a walking control unit B. Each is configured to be capable of driving and manipulating. That is, as shown in FIG. 2, relative rotation of the speed change operation shafts 13 and 13 of the continuously variable transmissions H and H to the speed change arms 14 and 14 and the speed change operation shafts 13 and 13 which are integrally rotatably attached. The operation arms 15 and 15 which are freely fitted to each other are linked by springs 16 and 16 so as to be capable of following operation, and the operation arms 15 and 15 are provided with a speed change pedal 17 and a walking control section B in the boarding operation section A. It is linked so that either lever 18 can be operated. The operation arms 15 and 15 are configured to integrally rotate in the speed increasing operation direction from the neutral position to the forward side from the neutral position of the continuously variable transmission H by operating either the speed change pedal 17 or the speed change operation lever 18. Along with the rotation, the speed change arms 14, 14 follow the rotations via the springs 16, 16, and the left and right rear wheels 3, 3 are forward-accelerated at substantially the same speed. Each of the speed change arms 14, 14 grips either one of the left and right grip operation levers 19, 19 provided on the grip operation section 9a of the steering handle 9 or the grip operation levers 20, 20 arranged in the boarding operation section A. By the operation, the continuously variable transmission H is linked so as to be rotated in a direction from the neutral position toward the deceleration side. For example, when the vehicle is traveling straight ahead in the forward direction by the operation of the gear shift operation lever 18, one grip When the operating lever is operated, the speed-change arm 14 on the operated side is operated toward the deceleration side against the spring force, and turning traveling is enabled. Further, when the respective gripping operation levers 19 and 19 are squeezed by a large amount in the neutral stop state, the operation is performed in a backward traveling state. The gear shift operation lever 18 is structured so that it can be held at an arbitrary operation position by interposing a friction holding portion by a disc spring in the middle of the linkage. The grip operation levers 19 and 19 for walking control are linked via a link link 21 and a relay rotation member 22 which is rotatably supported around a horizontal axis, and the shift operation lever 18 is similarly linked link 23. Also, they are linked through the relay rotation member 24. Further, the walking control side operation tool 25 of the belt tension clutch C for the mower 5 is also linked via the link link 26 and the relay rotation member 27. The relay link members 22, 24, 27 are arranged so as to rotate about the same horizontal axis X.
【0009】 機体フレーム1の後端部には、搭乗操縦形態において、不整地走行の際に機体 が後方に転倒するのを防止する転倒防止フレーム28を下方側に位置する作用位 置と上方に持ち上がる非作用格納位置とに切り換え揺動自在に配設してある。つ まり、図5〜図7に示すように、転倒防止フレーム28は左右両側を機体フレー ム1に横軸芯Y周りで回動自在に枢支して平面視でループ状に形成するとともに 、枢支部材29に上下2箇所にピン挿通孔30,31を形成し、機体フレーム側 ブラケット32に形成した挿通孔33といずれかのピン挿通孔30,31とに亘 って貫通ロッド34を差し込み挿通して上記2位置に固定できるよう構成してあ る。前記貫通ロッド34はバネ35により差し込み側に付勢してあり、左右中央 の操作回動軸36に形成した天秤アーム37に枢支され、操作具38によって操 作回動軸36を回動操作して左右の貫通ロッド34,34が一体的にピン挿通孔 30,31から抜き外すことができるよう構成してある。格納位置にある状態か ら操作具38を回動させると、自重で転倒防止フレーム28が作用位置に切り換 わり、係止具39で支持され、操作具38を離すとその位置でロッド34が挿通 して固定される。又、この状態から格納させるときは、操作具38を回動操作し て手あるいは足で転倒防止フレーム28を持ち上げて格納させる。 そして、前記転倒防止フレーム28の位置変更に伴って、変速操作レバー18 と前記各変速アーム14,14との連係を断つ状態と連動連係される状態に切り 換わるよう構成してある。つまり、図8に示すように、変速操作レバー18に連 動連係された前記中継回動部材24と操作アーム15側の中継回動部材40とを ピン41の抜き差しにより、一体回動する状態と連係を解除する状態とに切り換 え自在に構成し、かつ、このピン41を前記操作具38の操作に連動して抜き差 しするよう構成するとともに、前記各中継回動部材24,40の間にピン41の 差し込みを許す状態とそれを阻止する状態とに切り換え揺動自在な接当部材42 を配備してある。転倒防止フレーム28を作用位置から格納位置に切り換えると 、途中部に形成したアーム28aが接当部材42を押し上げ入り込み付勢された 前記ピン41が両中継回動部材24,40に挿通する状態に設定され、作用位置 に切り換えると接当部材42が下方に揺動してピン41の入り込みを阻止して、 変速ペダル17を操作するときは、摩擦保持機構との連係が解除され、操作が軽 く行えるよう構成してある。At the rear end of the machine body frame 1, a fall prevention frame 28 that prevents the machine body from falling backward during traveling on rough terrain in the boarding operation mode is provided at the upper and lower operating positions. It is arranged so as to be swingable by switching to a non-acting storage position where it is lifted. That is, as shown in FIGS. 5 to 7, the overturn preventing frame 28 is pivotally supported on the body frame 1 about the horizontal axis Y on both left and right sides to form a loop shape in a plan view. Pin insertion holes 30 and 31 are formed at two upper and lower positions on the pivot member 29, and the penetration rod 34 is inserted between the insertion hole 33 formed in the body frame side bracket 32 and one of the pin insertion holes 30 and 31. It is constructed so that it can be inserted and fixed in the above two positions. The penetrating rod 34 is biased toward the insertion side by a spring 35, and is pivotally supported by a balance arm 37 formed on an operation rotating shaft 36 at the center of the left and right, and the operation rotating shaft 36 is rotated by an operating tool 38. The left and right through rods 34, 34 can be integrally removed from the pin insertion holes 30, 31. When the operating tool 38 is rotated from the retracted position, the falling prevention frame 28 is switched to the operating position by its own weight and is supported by the locking tool 39. When the operating tool 38 is released, the rod 34 is moved at that position. It is fixed by inserting it. In addition, when storing from this state, the operating tool 38 is rotated to lift and store the fall prevention frame 28 with hands or feet. When the position of the fall prevention frame 28 is changed, the shift operation lever 18 and the shift arms 14 and 14 are switched to a state in which the linkage is disconnected and a state in which the shift operation lever 18 and the shift arms 14 and 14 are linked. That is, as shown in FIG. 8, the relay rotation member 24 and the relay rotation member 40 on the operation arm 15 side, which are linked to the gear shift operation lever 18, are integrally rotated by inserting and removing the pin 41. It is configured such that it can be freely switched to the state in which the linkage is released, and this pin 41 is configured to be pulled out in conjunction with the operation of the operation tool 38, and at the same time, the relay rotation members 24, 40 An abutment member 42, which can be swung freely, is provided between the state in which the pin 41 can be inserted and the state in which it is blocked. When the fall prevention frame 28 is switched from the operating position to the retracted position, the arm 28a formed in the middle pushes up the contact member 42, and the pin 41 urged in and pushed is inserted into both the relay rotation members 24, 40. The contact member 42 swings downward to prevent the pin 41 from entering when set to the operating position, and when the transmission pedal 17 is operated, the linkage with the friction holding mechanism is released and the operation is light. It is structured so that it can be performed easily.
【0010】 前記モーア5は、前後に夫々左右一対づつ機体フレーム1に横軸芯周りで枢支 された回動部材43〔上下位置調節部材の一例〕に夫々揺動リンク44を介して 吊り下げ支持され、各回動部材43を操作レバー45により回動操作して刈り高 さを変更調節できるよう構成してある。尚、各回動部材43と揺動リンク44と は、障害物との衝突によるモーアハウジング5aの突き上げの際に上方退避を許 容する長孔融通を形成してある。そして、図3、図4に示すように、縦向き中継 軸46にモーア側従動プーリ47とほぼ同一高さに駆動側プーリ48を取付け、 この駆動側プーリ48と従動側プーリ47とに亘り伝動ベルト49を張設してモ ーア5を駆動するよう構成してある。駆動側プーリ48とほぼ同一高さに形成し た機体フレーム側ブラケット50と、従動側プーリ47とほぼ同一高さに位置す るモーアハウジング側ブラケット51とに亘り、ロッド52及び圧縮バネ53を 介装して、モーアハウジング5aを伝動ベルト49の緊張側方向に弾性押圧する よう構成してある。前記ロッド52は機体側ブラケット50に横軸芯周りで回動 自在に枢支され、モーアハウジング側のブラケット51に横軸芯周りで回動自在 に支持された軸部材54にスライド自在に挿通支持してあり、座金55を介して ロッド52に外嵌した状態で介装された圧縮バネ53によりモーアハウジング5 aを機体前方に押圧するよう構成し、圧縮バネ53とロッド52との間には、カ ラー56〔ストッパーの一例〕を内装して圧縮バネ53の最大変形量よりも少な い圧縮状態でモーアハウジング5aと機体フレーム1とのそれ以上の相対近接移 動を阻止するとともに、圧縮バネ53のガタつきを防止するよう構成してある。 尚、前記圧縮バネ53はロッド52に螺合したナット57により付勢力の調節を 行えるようにしてある。 このように構成すると、モーア5の刈り高さ調節のために回動部材43を操作 すると、ロッド52が機体側枢支点で上下揺動し、モーアハウジング5aが上下 移動とともに前後方向にも移動して、各プーリ間の距離がほぼ一定に維持され、 常に一定のベルト張力に維持されることとなる。The mowers 5 are hung from the front and rear left and right pairs, respectively, by a swinging link 44 on a rotating member 43 (an example of a vertical position adjusting member) pivotally supported on the body frame 1 about a horizontal axis. It is configured so that each turning member 43 can be turned by the operating lever 45 to change and adjust the cutting height. The rotary members 43 and the swing links 44 are formed with a long hole which allows upward retreat when the mower housing 5a is pushed up due to collision with an obstacle. Then, as shown in FIGS. 3 and 4, the drive-side pulley 48 is attached to the vertical relay shaft 46 at substantially the same height as the mower-side driven pulley 47, and the drive-side pulley 48 and the driven-side pulley 47 are transmitted. The belt 49 is stretched to drive the mower 5. A body frame side bracket 50 formed at substantially the same height as the drive side pulley 48 and a mower housing side bracket 51 located at substantially the same height as the driven side pulley 47 are provided with a rod 52 and a compression spring 53. The mower housing 5a is elastically pressed toward the tension side of the transmission belt 49. The rod 52 is rotatably supported by the body-side bracket 50 so as to be rotatable around the horizontal axis, and is slidably inserted and supported by a shaft member 54 that is supported by the bracket 51 on the mower housing side so as to be rotatable around the horizontal axis. The mower housing 5a is configured to be pressed forward of the fuselage by the compression spring 53 that is externally fitted to the rod 52 via the washer 55. , A color 56 (an example of a stopper) is installed to prevent further relative proximity movement between the mower housing 5a and the machine body frame 1 in a compressed state less than the maximum deformation amount of the compression spring 53, and the compression spring It is configured to prevent the rattling of 53. The compression spring 53 can be adjusted in urging force by a nut 57 screwed to the rod 52. With this configuration, when the rotating member 43 is operated to adjust the cutting height of the mower 5, the rod 52 swings up and down at the aircraft body side pivot point, and the mower housing 5a moves up and down as well as forward and backward. As a result, the distance between the pulleys is kept almost constant, and the belt tension is always kept constant.
【0011】 尚、実用新案登録請求の範囲の項に図面との対照を容易にするために符号を記 すが、該記入により本考案は添付図面の構成に限定されるものではない。In the claims of the utility model, reference numerals are provided for easy comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.
【図1】芝刈機の全体側面図[Figure 1] Overall side view of the lawn mower
【図2】機体走行駆動系を示す平面図FIG. 2 is a plan view showing an airframe traveling drive system.
【図3】モーアの平面図FIG. 3 is a plan view of mower.
【図4】モーア駆動ベルトの緊張構造を示す側面図FIG. 4 is a side view showing a tension structure of a mower drive belt.
【図5】転倒防止防止フレーム配設部の平面図FIG. 5 is a plan view of a fall prevention prevention frame arrangement portion.
【図6】転倒防止防止フレーム配設部の平面図FIG. 6 is a plan view of a fall prevention prevention frame arrangement portion.
【図7】転倒防止防止フレーム配設部の側面図FIG. 7 is a side view of a fall prevention prevention frame arrangement portion.
【図8】連係断続機構の側面図FIG. 8 is a side view of the linkage connection / disconnection mechanism.
【図9】操作具配設部の後面図FIG. 9 is a rear view of the operation tool arrangement portion.
1 機体フレーム 5 モーア 5a モーアハウジング 11 ベルト伝動機構 43 上下位置調節部材 44,44 揺動リンク 47 従動側プーリ 48 駆動側プーリ 49 伝動ベルト 50,51 ブラケット 52 ロッド 53 圧縮バネ 56 ストッパー 1 Airframe Frame 5 Mower 5a Mower Housing 11 Belt Transmission Mechanism 43 Vertical Position Adjusting Member 44,44 Swing Link 47 Driven Side Pulley 48 Drive Side Pulley 49 Transmission Belt 50,51 Bracket 52 Rod 53 Compression Spring 56 Stopper
Claims (1)
置調節自在に装着するとともに、走行機体側からベルト
伝動機構(11)を介して前記モーア(5)に動力を供
給するよう構成してある芝刈機であって、前記モーア
(5)を走行機体側の上下位置調節部材(43),(4
3)に対して前後一対の揺動リンク(44),(44)
を介して吊り下げ支持するとともに、前記ベルト伝動機
構(11)における駆動側プーリ(48)とほぼ同一高
さに形成した機体フレーム(1)側ブラケット(50)
と、従動側プーリ(47)とほぼ同一高さに位置するモ
ーアハウジング(5a)側ブラケット(51)とに亘
り、ロッド(52)及び圧縮バネ(53)を介装して、
モーアハウジング(5a)を伝動ベルト(49)の緊張
側方向に弾性押圧するよう構成し、かつ、前記圧縮バネ
(53)の最大変形量よりも少ない圧縮状態でモーアハ
ウジング(5a)と機体フレーム(1)との相対近接移
動を阻止するストッパー(56)を設けてある芝刈機。1. A mower (5) is mounted below the traveling machine body so as to be adjustable in vertical position, and power is supplied from the traveling machine body side to the mower (5) via a belt transmission mechanism (11). The mower (5) is provided with vertical position adjusting members (43), (4) on the traveling body side.
3) A pair of front and rear swing links (44), (44)
A frame (1) side bracket (50), which is suspended and supported through a belt and is formed at substantially the same height as the drive side pulley (48) of the belt transmission mechanism (11).
And a bracket (51) on the mower housing side (5a) located at substantially the same height as the driven pulley (47), with a rod (52) and a compression spring (53) interposed.
The mower housing (5a) is configured to elastically press in the tension side direction of the transmission belt (49), and the mower housing (5a) and the body frame (in the compressed state less than the maximum deformation amount of the compression spring (53). A lawn mower provided with a stopper (56) which prevents relative proximity movement with 1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2337792U JPH0582225U (en) | 1992-04-14 | 1992-04-14 | Lawn mower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2337792U JPH0582225U (en) | 1992-04-14 | 1992-04-14 | Lawn mower |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0582225U true JPH0582225U (en) | 1993-11-09 |
Family
ID=12108848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2337792U Pending JPH0582225U (en) | 1992-04-14 | 1992-04-14 | Lawn mower |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0582225U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108323312A (en) * | 2018-03-09 | 2018-07-27 | 浙江亚特电器有限公司 | A kind of grass trimmer height-regulating mechanism |
-
1992
- 1992-04-14 JP JP2337792U patent/JPH0582225U/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108323312A (en) * | 2018-03-09 | 2018-07-27 | 浙江亚特电器有限公司 | A kind of grass trimmer height-regulating mechanism |
CN108323312B (en) * | 2018-03-09 | 2024-01-26 | 浙江亚特电器股份有限公司 | Mower height-adjusting mechanism |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3017576B2 (en) | Walking type work machine | |
JP2688008B2 (en) | Lawn mower | |
US5337543A (en) | Lawn mower for use both as riding and walking operator type | |
EP1142775B1 (en) | Work vehicle | |
JPH0582225U (en) | Lawn mower | |
JP2002029274A (en) | Traveling transmission mechanism in mower | |
JP4581155B2 (en) | Passenger work vehicle | |
JP3822744B2 (en) | Work vehicle | |
JP4558899B2 (en) | Mower | |
JP3596349B2 (en) | Passenger work vehicle | |
JP4848572B2 (en) | Passenger work vehicle | |
JPH0675446B2 (en) | Walking mower | |
JP2002027814A (en) | Attaching structure of fuel tank for mower | |
JPH0582226U (en) | Lawn mower | |
JPH06113653A (en) | Lawn mower | |
JPH0591239U (en) | Lawn mower | |
JP4359367B2 (en) | Ride type rice transplanter | |
JPH0595703A (en) | Working machine | |
JP4347970B2 (en) | Speed change mechanism for traveling vehicle | |
JP4793475B2 (en) | Passenger work vehicle | |
JP2000335453A5 (en) | ||
JPH1052140A (en) | Working vehicle | |
JP2585432Y2 (en) | Running vehicle | |
JPH0630603Y2 (en) | Tracked vehicle turning device | |
JP4985869B2 (en) | Passenger work vehicle |