JPS5814824Y2 - Machine stabilization device in rice transplanter - Google Patents
Machine stabilization device in rice transplanterInfo
- Publication number
- JPS5814824Y2 JPS5814824Y2 JP1978155353U JP15535378U JPS5814824Y2 JP S5814824 Y2 JPS5814824 Y2 JP S5814824Y2 JP 1978155353 U JP1978155353 U JP 1978155353U JP 15535378 U JP15535378 U JP 15535378U JP S5814824 Y2 JPS5814824 Y2 JP S5814824Y2
- Authority
- JP
- Japan
- Prior art keywords
- rice transplanter
- swinging rod
- machine
- wheels
- aircraft
- 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
Links
Landscapes
- Transplanting Machines (AREA)
Description
【考案の詳細な説明】
本考案は田植機における機体安定装置に係るものである
。[Detailed Description of the Invention] The present invention relates to a body stabilizing device for a rice transplanter.
従来、田植機の車輪昇降装置として、車輪を支架する左
右のスイングケースに一端が枢支された連結杆の他端を
両側で枢支する左右方向の揺動杆を、車輪昇降装置の前
後方向に延びる伸縮軸に装着の支点軸を中心にして左右
車輪の揺動状態と固定状態とに選択切換自在に設けたも
のが提案されている。Conventionally, as a wheel lifting device for a rice transplanter, a swinging rod in the left and right direction is used, one end of which is pivoted to the left and right swing cases that support the wheels, and the other end of the connecting rod is pivoted on both sides. It has been proposed that the left and right wheels can be selectively switched between a rocking state and a fixed state about a fulcrum shaft attached to a telescopic shaft extending from the front.
ところで、左右方向の揺動杆を利用して左右車輪の揺動
状態と固定状態とに選択切換自在にした際には、機体の
左右方向における重量バランスが適性に保持されてない
と、軟弱な耕盤上を走行する田植機では機体が片側に傾
斜して、傾斜側では泥槽えとなり、他側では浮苗が発生
するという極端な現象となり、整然と植付けられないの
みならず、機体の直進性が阻害される欠点がある。By the way, when using the left and right swinging levers to freely select between the rocking state and the fixed state of the left and right wheels, if the weight balance in the left and right direction of the aircraft is not maintained properly, it will become soft and weak. When a rice transplanter runs on a tiller, the machine tilts to one side, creating a mud tank on the slope and floating seedlings on the other side, an extreme phenomenon that not only prevents orderly planting but also prevents the machine from moving straight. There is a drawback that sex is inhibited.
しかるに、田植機を構成する部分の全体配置構成のみで
機体の左右重量バランスを正確にすることは設計上極め
て困難なことであり、しかも限られたスペース内にそれ
ぞれの機能部分を有効に配置して機体の小型・軽量化を
図るという見地からも得策なことではない。However, it is extremely difficult to accurately balance the left and right weight of the rice transplanter by simply looking at the overall arrangement of the parts that make up the rice transplanter, and moreover, it is difficult to effectively arrange each functional part within a limited space. This is not a good idea from the standpoint of trying to make the aircraft smaller and lighter.
そこで従来は、一般に進行方向に沿う機体中心から一方
に偏在する機体重心に見合うバランスウェイトを装着し
て、機体の左右重量バランスを平衝状態にしているのが
実情である。Conventionally, therefore, a balance weight that matches the center of gravity of the aircraft, which is unevenly distributed to one side from the center of the aircraft along the direction of travel, is attached to balance the left and right weight balance of the aircraft.
本考案は上記の如き実情に鑑み、その欠点を解消すべく
創案されたもので、その目的とするところは、車輪昇降
装置を具備した田植機の機体重心が、車輪昇降装置を構
成する伸縮軸の軸芯を中心にして一側に偏在していても
、支点軸を中心とする揺動杆の左右回転モーメントに平
衡状態を保持させて機体の左右方向における重量バラン
スを良好に維持することができる田植機における機体安
定装置を提供するものである。In view of the above-mentioned circumstances, this invention was devised to eliminate the drawbacks.The purpose of this invention is to ensure that the center of gravity of a rice transplanter equipped with a wheel lifting device Even if the weight is unevenly distributed to one side around the fulcrum axis, it is possible to maintain an equilibrium state in the left-right rotational moment of the swinging rod around the fulcrum axis and maintain a good weight balance in the left-right direction of the aircraft. The present invention provides a body stabilization device for a rice transplanter that can be used in a rice transplanter.
上記目的を達成する本考案の田植機における機体安定装
置は、車輪を支架する左右のスイングケースに一端が枢
支された連結杆の他端を両側で枢支する左右方向の揺動
杆を、車輪昇降装置の前後方向に延びる伸縮軸に装着の
支点軸を中心にして左右車輪の揺動状態と固定状態とに
選択切換自在に設けた田植機において、前記車輪昇降装
置の前後方向に延びる伸縮軸芯を中心とする機体−側に
機体重心を偏在させると共に、揺動杆の伸縮軸芯から連
結杆枢支位置に至るアーム比を、一方の機体重心偏在側
は短く他方を長く構成して、前記支点軸芯を中心とする
揺動杆の左右回転モーメントに平衡状態を保持すべく構
成したことを特徴とするものである。The body stabilizing device of the rice transplanter of the present invention that achieves the above object has a horizontal swinging rod that pivots on both sides of the connecting rod, one end of which is pivotally supported on the left and right swing cases that support the wheels, and the other end of the connecting rod that is pivotally supported on both sides. In a rice transplanter, the left and right wheels can be selectively switched between a rocking state and a fixed state about a fulcrum shaft attached to a telescoping shaft extending in the longitudinal direction of the wheel elevating device. The center of gravity of the machine is unevenly distributed on the side of the body centered on the axis, and the arm ratio from the telescopic axis of the swinging rod to the pivot position of the connecting rod is configured such that one side of the center of gravity of the machine is unevenly distributed and the other side is long. The present invention is characterized in that it is configured to maintain an equilibrium state with respect to the horizontal rotational moment of the swinging rod about the fulcrum axis.
本考案の構成を図面に示された一実施例について説明す
れば、第１図において、１は田植機本体であって、その
前部にはエンジン２が搭載され、後部には運転操作−・
ンドル３が後方斜め上方へ向は延設されており、該・・
ンドル３の前方には苗載置台４が前低後高扶に架設され
ている。The structure of the present invention will be explained with reference to an embodiment shown in the drawings. In FIG. 1, 1 is a rice transplanter main body, an engine 2 is mounted on the front part, and an operation control unit is mounted on the rear part.
The handle 3 extends rearward and diagonally upward, and...
In front of the handle 3, a seedling mounting stand 4 is installed at the front and rear heights.
５は苗分割植込機構であって、該苗分割植込機構５は苗
載置台４の傾斜下端に設けられた苗取出口（図示せず）
の前方に配設されており、ループ状の運転軌跡をえかい
て苗載置台４上に載置、されたマント状集団苗から単位
植付株あての苗を分割して田面に植付ける作用をなすも
のである。Reference numeral 5 denotes a seedling dividing and planting mechanism, and the seedling dividing and planting mechanism 5 has a seedling outlet (not shown) provided at the lower end of the slope of the seedling mounting table 4.
It is placed in front of the seedling tray 4, and has the function of dividing the seedlings for unit planting from the mantle-shaped group of seedlings placed on the seedling table 4 after drawing a loop-shaped driving trajectory, and planting them on the rice field. It is something that does.
６は円面滑走体、７はスイングケースであって、該スイ
ングケース７の基端側は水平横軸８を介して上下方向摺
動自在に枢着され、その遊端側には機体推進車輪９゜９
ａが軸支されており、該機体推進車輪９９９ａは前記エ
ンジン２にに連動して回転するようになっている。6 is a circular sliding body, 7 is a swing case, the base end side of the swing case 7 is pivoted to be vertically slidable via a horizontal horizontal shaft 8, and the free end side thereof has aircraft propulsion wheels. 9°9
a is pivotally supported, and the body propulsion wheel 999a rotates in conjunction with the engine 2.
一方第２図および第３図において１０は伸縮自在機構例
えば油圧シリンダであって、該油圧シリンダ１０はエン
ジン２の後方に位置しかつ前後方向に水平に搭載されて
おり、運転操作ハンドル３の一側に装着された油圧操作
レバー（図示せず）の切換操作により油圧シリンダ１０
を伸縮作動せしめて機体推進車輪９，９ａを耕盤の深浅
度合に応じて上下動調整し得るようになっている。On the other hand, in FIGS. 2 and 3, reference numeral 10 denotes a telescoping mechanism, such as a hydraulic cylinder, which is located at the rear of the engine 2 and is mounted horizontally in the longitudinal direction. The hydraulic cylinder 10 is operated by switching a hydraulic operating lever (not shown) mounted on the side.
By telescopically operating the machine propulsion wheels 9, 9a, the vertical movement can be adjusted according to the depth of the plow.
そして上記油圧シリンダ１０の伸縮軸１０ａには、支点
軸１１ａを有する筒状の支点部材１１が伸縮軸１０ａの
報縁方向に摺動自在に嵌装されており、該支点部材１１
は受板１２，１２ａを介して伸縮軸１０ａに捲装された
緩衝用弾機１３゜１３ａにより伸縮軸１０ａの伸長方向
に付勢されている。A cylindrical fulcrum member 11 having a fulcrum shaft 11a is fitted to the telescopic shaft 10a of the hydraulic cylinder 10 so as to be slidable in the direction of the edge of the telescopic shaft 10a.
is biased in the direction of extension of the telescopic shaft 10a by a shock absorber 13° 13a wrapped around the telescopic shaft 10a via the receiving plates 12, 12a.
１４は断面コ字型状に形成された左右方向の揺動杆であ
って、該揺動杆１４は、その略中間部に設けた切欠部１
４ａを介して支点部材１１の支点軸１１ａに係合した状
態で水平方向揺動自在に枢支されている。Reference numeral 14 denotes a left-right swinging rod having a U-shaped cross section.
It is pivoted so as to be horizontally swingable while being engaged with the fulcrum shaft 11a of the fulcrum member 11 via 4a.
上記揺動杆１４の左右両端には垂直方向に貫挿された枢
支ピン１５，１５ａを介して連結杆１６が回動自在に枢
着されており、従って、連結杆１６は揺動杆１４に対し
常に平行状態を維持しなから枢支ピン１５を支点として
水平方向に相対回動し得るようになっている。A connecting rod 16 is rotatably attached to both left and right ends of the swinging rod 14 via pivot pins 15, 15a inserted in the vertical direction. While always maintaining a parallel state, the pivot pin 15 can be rotated relative to each other in the horizontal direction using the pivot pin 15 as a fulcrum.
そして、上記揺動杆１４の左右のアーム比Ｌ１．Ｌ２す
なわち、支点軸１１ａと左右の枢支ピン１５ａ。Then, the left and right arm ratio L1 of the swinging rod 14. L2, that is, the fulcrum shaft 11a and the left and right pivot pins 15a.
１５間の長さは、左右の機体推進車輪９，９ａが受ける
荷重の相違（機体重心が伸縮軸１０ａの軸芯より左右い
ずれか一方寄りに片寄っている場合）ニ対応して所要比
率に設定されるものである。The length between 15 and 15 is set to a required ratio in response to the difference in the load applied to the left and right aircraft propulsion wheels 9, 9a (if the center of gravity of the aircraft is biased toward either the left or right from the axis of the telescopic shaft 10a). It is something that will be done.
すなわち、第９図図示の如く、正面視において左側車輪
９ａの受ける荷重をいまＰｏとし、左側車輪９の荷重を
Ｐ２とすると、揺動杆１４の支点軸ＩＬａ回りの回転モ
ーメントをＰ１×Ｌ１−Ｐ２×Ｌ２となるようにＬｌ
、Ｌ２の長さを設定するものである。That is, as shown in FIG. 9, if the load on the left wheel 9a in front view is now Po and the load on the left wheel 9 is P2, then the rotational moment of the swinging rod 14 around the fulcrum axis ILa is P1×L1− Ll so that P2×L2
, L2 is set.
上記Ｐ□、Ｐ２は機体の構成により判明するものである
から、Ｌ□、Ｌ２は機体構成を決めた段階で決定すれば
よい。Since the above P□ and P2 are determined by the configuration of the aircraft, L□ and L2 may be determined at the stage when the aircraft configuration is determined.
例えば、図示例において第９図に示す如く、機体重心Ｇ
が伸縮軸１０ａの軸芯ｔより左側に片寄っている場合に
は左側の車輪９ａの荷重Ｐ１と左側車輪９の荷重Ｐ２と
の関係は、
Ｐ １＞Ｐ ２の関係にあるので、Ｌｌ＜Ｌ２に設定し
、Ｐ １ｘｉ、 １＝ｐ ２ＸＬ２ にな□るように配
慮さ庇ている。For example, in the illustrated example, as shown in FIG.
is biased to the left of the axis t of the telescopic shaft 10a, the relationship between the load P1 on the left wheel 9a and the load P2 on the left wheel 9 is P1>P2, so Ll<L2. , and care is taken to ensure that P 1xi, 1=p 2XL2.
従って、機体重心Ｇが左側に寄っていても、揺動杆１４
の支点軸１１ａ回りの回転モーメントは揺動杆１４のア
ーム比（挺子比）を変えることによってバランスが良好
に保持させるようになっている。Therefore, even if the center of gravity G of the aircraft is shifted to the left, the swinging rod 14
The rotational moment around the fulcrum shaft 11a is maintained in good balance by changing the arm ratio (rotor ratio) of the swinging rod 14.
一方、１７は上記連結杆１６に対し枢結ボルト１７ａを
介して上下回動自在に枢結されたロンド、１８はスイン
グケース７の遊端部側にその一端を枢結したロンドであ
って、これら両ロンド１７゜１８は機体フレーム１ａに
対し支点軸Ｓを介して回動自在に支持されたリフトアー
ム１９を介在して連結されており、これらによって連結
杆１６とスイングケース７を連結するリンク状の連結部
材Ａが構成されている。On the other hand, numeral 17 is a rond that is pivotally connected to the connecting rod 16 via a pivot bolt 17a so as to be movable up and down; 18 is a rond that has one end pivotally connected to the free end side of the swing case 7; These two ronds 17 and 18 are connected to the fuselage frame 1a via a lift arm 19 that is rotatably supported via a fulcrum shaft S, and these act as links that connect the connecting rod 16 and the swing case 7. A connecting member A having a shape is configured.
２０はロンクピンであって、該ロンクピン２０は第４図
に示す如く、腕杆１６に固定されたブラケット２１およ
び弾機２２を介し腕杆１６に穿設した貫通孔１６ａ内に
摺動自在にかつ上方へ付勢された状態で弾持されている
。Reference numeral 20 denotes a long pin, and as shown in FIG. It is held in an upwardly biased state.
２３は揺動杆１４の一端に設けたロックピン２０の嵌入
孔であって、ロックピン２０を該嵌入孔２３に嵌入する
ことにより揺動杆１４と連結杆１６との連結角度を平面
視において直角状に固定し左右の車輪高さを同一高さに
保持するものであり、ロックピン２０を嵌入孔２３から
放出することによって揺動杆１４と連結杆１６との連結
を解除して左右の車輪を固定状態から揺動状態に切換え
るものである。Reference numeral 23 denotes a fitting hole for a lock pin 20 provided at one end of the swinging rod 14, and by fitting the lock pin 20 into the fitting hole 23, the connection angle between the swinging rod 14 and the connecting rod 16 can be changed in plan view. It is fixed at right angles to maintain the left and right wheels at the same height, and by releasing the lock pin 20 from the insertion hole 23, the connection between the swinging rod 14 and the connecting rod 16 is released, and the left and right wheels are fixed at the same height. This switches the wheels from a fixed state to a swinging state.
２４はロックピン操作用のワイヤであって、該ワイヤ２
４の一端はロックピン２０の下端に止着され、他端は運
転操作ハンドル３の一側に設けたワイヤ操作レバー２５
に連結されている。24 is a wire for operating the lock pin;
One end of 4 is fixed to the lower end of the lock pin 20, and the other end is attached to a wire operating lever 25 provided on one side of the operation handle 3.
is connected to.
２６はキャンプである。26 is camping.
２７は腕杆１６の一端に設けた係止突起で揺動杆１４に
設けた係合孔２８に嵌挿にあって揺動杆１４の左右揺動
限界を規制するストッパーである。Reference numeral 27 denotes a stopper which is a locking protrusion provided at one end of the arm rod 16 and is fitted into an engagement hole 28 provided in the swing rod 14 to restrict the horizontal swing limit of the swing rod 14.
次に叙上の如く構成した本考案の作用について説明する
。Next, the operation of the present invention constructed as described above will be explained.
路上走行時においては、左右の車輪高さを同一高さに保
持すべく、ロックピン操作レバー２５を操作してロック
ピン２０をロンクピン嵌人孔２３に嵌入して揺動杆１４
と腕杆１６の連結角度を第２図に示す如く平面視におい
て直角に固定した状態で機体を走行させるが、機体走行
中は油圧シリンダ１０の伸縮軸１０ａに捲疲した緩衝用
弾機１３．１３ａのクッション作用で機体推進車輪９，
９ａが自動的に上下動する。When driving on the road, in order to maintain the left and right wheel heights at the same height, the lock pin operating lever 25 is operated to insert the lock pin 20 into the long pin insertion hole 23 and the swing rod 14 is inserted.
The aircraft is run with the connecting angles of the arm rods 16 fixed at right angles in plan view as shown in FIG. Due to the cushioning action of 13a, the fuselage propulsion wheels 9,
9a automatically moves up and down.
また圃場における植付作業時、耕盤の深浅度合等に応じ
て予め機体に対する車輪位置を調整するには、油圧操作
レバー（図示せず）の操作により油圧シリンダ１０を伸
縮作動せしめて機体に対する車輪位置を適正位置に位置
決めする。In addition, during planting work in the field, in order to adjust the position of the wheels relative to the machine body in advance depending on the depth of the tiller, etc., the hydraulic cylinder 10 is telescopically operated by operating a hydraulic control lever (not shown). Position the position at the appropriate position.
上記の如くして車輪の上下調整をしたのち、一般に左右
の機体推進車輪９，９ａを耕盤の凹凸変化に対応して左
右上下動する揺動状態とし、機体全水平状態に保持し得
るように、ロックピン２０を嵌入孔２３から抜いて揺動
杆１４と腕杆１６の連結角度をフリー状態にして植付作
業を開始する。After adjusting the wheels up and down as described above, the left and right aircraft propulsion wheels 9, 9a are generally put into a swinging state in which they move left and right up and down in response to changes in the unevenness of the tiller, so that the aircraft can be maintained in a completely horizontal state. Next, the lock pin 20 is removed from the insertion hole 23, the connection angle between the swing rod 14 and the arm rod 16 is set to a free state, and the planting operation is started.
この場合、例えば第９図に示す如く、機体重心Ｇが伸縮
軸１０ａの軸芯ｔよりも左側に片寄った位置にある場合
には、左側の機体推進車輪９ａに掛る荷重Ｐ１は右側の
機体推進車輪Ｐ２に掛る荷重Ｐ２よりも犬となるため、
揺動杆１４には支点軸１１ａを回動支点として反時計方
向に回動しようとする力が作用する。In this case, for example, as shown in FIG. 9, if the center of gravity G of the aircraft is at a position offset to the left of the axis t of the telescopic shaft 10a, the load P1 applied to the left aircraft propulsion wheel 9a will be Because it becomes a dog than the load P2 applied to the wheel P2,
A force acts on the swinging rod 14 to rotate it counterclockwise about the fulcrum shaft 11a.
そのため左側の車輪９ａは右側車輪９よりも上昇し機体
を左方向に下傾させるものであるが、本考案においては
、左右の車輪９゜９ａに加わる荷重Ｐ□ｔＰ２の相違に
対応して、揺動杆１４のアーム比Ｌ□、Ｌ２を異なるよ
うに設定し、Ｐ□×Ｌ１＝Ｐ２×Ｌ２となるように構成
したもつであるから、機体重心が左右いずれの側に片寄
っていたとしても揺動杆１４の支点軸１１ａ回りの回転
モーメントはバランスが常に良好に保持された状態とな
るため、植付作業時、機体が重心方向に傾くことを防止
することができ、機体を常に水平状態に維持することが
できる。Therefore, the left wheel 9a rises higher than the right wheel 9, tilting the aircraft downward to the left. However, in the present invention, in response to the difference in the load P□tP2 applied to the left and right wheels 9°9a, Since the arm ratios L□ and L2 of the swinging rod 14 are set differently so that P□×L1=P2×L2, no matter which side the center of gravity of the machine is on the left or right side. Since the rotational moment of the swinging rod 14 around the fulcrum shaft 11a is always well-balanced, it is possible to prevent the machine from tilting toward the center of gravity during planting work, and the machine can always be kept horizontal. can be maintained.
また、機体走行中、耕盤の一部に凹凸や傾斜面がある場
合には、左右の車輪９，９ａが受けている機体荷重の相
違に関係なく、揺動杆１４は耕盤の高低に追従して円滑
かつ的確に回動し左右の車輪高さを速かに上下動調整す
るので、機体が左右方向に傾動することはない（第１０
図参照）。In addition, when the machine is running, if a part of the tiller has an uneven or sloped surface, the swinging rod 14 will adjust to the height of the tiller, regardless of the difference in the machine load that the left and right wheels 9, 9a are receiving. The aircraft follows suit and rotates smoothly and accurately, quickly adjusting the height of the left and right wheels up and down, so the aircraft will not tilt left or right (No. 10)
(see figure).
従って本考案によれば、機体重心Ｇが左右いずれかに片
寄っていても、植付作業時には、揺動杆１４の支点軸回
りの回転モーメントを釣合せることによって機体の左右
の重量バランスを取ることができるので、従来の如く機
体の左右バランス不良に伴って機体が片側に傾斜し、−
側は浮苗やころび苗、他側は泥槽という現象を確実に防
止することができ植付性能が大幅に向上し得るものであ
る。Therefore, according to the present invention, even if the center of gravity G of the machine is biased to either the left or right side, the weight balance between the left and right sides of the machine can be maintained by balancing the rotation moment around the fulcrum axis of the swinging rod 14 during planting work. This allows the aircraft to tilt to one side due to imbalance between the left and right sides of the aircraft, as in the past.
This can reliably prevent the phenomenon of floating or fallen seedlings on one side and a mud tank on the other side, and can greatly improve planting performance.
これを要するに本考案は、車輪を支架する左右のスイン
グケースに一端が枢支された連結杆の他端を両側で枢支
する左右方向の揺動杆を、７．車輪昇降装置の前後方向
に延びる伸縮軸に装着の支点軸を中心にして左右車輪の
揺動状態と固定状態とに選択切換自在に設けた田植機に
おいて、前記車輪昇降装置の前後方向に延びる伸縮軸芯
を中心とする機体−側に機体重心を偏在させると共に、
揺動杆の伸縮軸芯から連結杆枢支位置に至るアーム比を
、一方の機体重心偏在側は短く他方を長く構成して、前
記支点軸芯を中心とする揺動杆の左右回転モーメントに
平衡状態を保持すべく構成したから、田植機の車輪昇降
装置を構成する伸縮軸の軸芯を中心にして機体重心が一
側に偏在していても、車輪昇降装置を構成する伸縮軸に
装着の支点軸を中心にして設ける揺動杆を有効利用して
、伸縮軸芯を中心とする揺動杆の左右方向のアーム比を
機体重心偏在側は短く他方を長く構成するだけの簡単な
構造で、支点軸芯を中心とする揺動杆の左右回転モーメ
ントに平衡状態を保持させて１機体の左右方向における
重量バランスを平衡状態に維持することができる。In short, the present invention provides a horizontal swinging rod, one end of which is pivotally supported on the left and right swing cases that support the wheels, and a left-right swinging rod that pivotally supports the other end of the connecting rod on both sides.7. In a rice transplanter, the left and right wheels can be selectively switched between a rocking state and a fixed state about a fulcrum shaft attached to a telescoping shaft extending in the longitudinal direction of the wheel elevating device. In addition to unevenly distributing the center of gravity of the aircraft on the − side of the aircraft centering on the axis,
The arm ratio from the telescopic axis of the swinging rod to the pivot position of the connecting rod is configured such that one arm is short on the side where the center of gravity of the machine is unevenly distributed and the other side is long, so that the left-right rotation moment of the swinging rod about the fulcrum axis can be controlled. Since it is configured to maintain an equilibrium state, even if the machine's center of gravity is unevenly located on one side with the axis of the telescopic shaft that makes up the wheel lifting device of the rice transplanter, it can be attached to the telescopic shaft that makes up the wheel lifting device of the rice transplanter. A simple structure that makes effective use of the swinging rod set around the fulcrum axis of the machine, and that the arm ratio in the left and right direction of the swinging rod around the telescopic axis is short on the side where the center of gravity of the machine is unevenly distributed and long on the other side. This makes it possible to maintain an equilibrium state in the left-right rotation moment of the swinging rod about the fulcrum axis, thereby maintaining the weight balance of one aircraft in the left-right direction in an equilibrium state.
図面は本考案に係る田植機比おける車輪昇降装置の一実
施例を示すものであって、第１図は本考案を具備した田
植機の全体側面図、第２図は要部の平面図、第３図は要
部の側面図、第４図は揺動杆と連結杆をロックピンで固
定した状態を示す断面図、第５図はロックピン嵌入孔の
平面図、第６図はロックピンの嵌入状態を示す断面図、
第７図は油圧シリンダと揺動杆の係合状態を示す断面図
、第８図は揺動杆と連結杆のロック状態を示す一部切欠
平面図、第９図および第１０図は作用説明図（一部平面
、二部表面図）である。
図中、７はスイングケース、９，９ａは機体推進車輪、
１０は油圧シリンダ、１０ａは伸縮軸、１１ａは支点軸
、１４は揺動杆、１６は連結杆、Ａは連結部材である。The drawings show an embodiment of a wheel lifting device for a rice transplanter according to the present invention, and FIG. 1 is an overall side view of the rice transplanter equipped with the present invention, and FIG. 2 is a plan view of the main parts. Figure 3 is a side view of the main parts, Figure 4 is a sectional view showing the swinging rod and connecting rod fixed with a lock pin, Figure 5 is a plan view of the lock pin insertion hole, and Figure 6 is the lock pin. A sectional view showing the fitted state of the
FIG. 7 is a sectional view showing the engaged state of the hydraulic cylinder and the swinging rod, FIG. 8 is a partially cutaway plan view showing the locked state of the swinging rod and the connecting rod, and FIGS. 9 and 10 are explanations of the operation. FIG. In the figure, 7 is a swing case, 9, 9a are aircraft propulsion wheels,
10 is a hydraulic cylinder, 10a is a telescopic shaft, 11a is a fulcrum shaft, 14 is a swinging rod, 16 is a connecting rod, and A is a connecting member.
Claims (1)
た連結杆の他端を両側で枢支する左右方向の揺動杆を、
車輪昇降装置の前後方向に延びる伸縮軸に装着の支点軸
を中心にして左右車輪の揺動状態と固定状態とに選択切
換自在に設けた田植機において、前記車輪昇降装置の前
後方向に延びる伸縮軸芯を中心とする機体−側に機体重
心を偏在させると共に、揺動杆の伸縮軸芯から連結杆枢
支位置に至るアーム比を、一方の機体重心偏在側は短く
他方を長く構成して、前記支点軸芯を中心とする揺動杆
の左右回転モーメントに平衝状態を保持すべく構成した
ことを特徴とする田植機における機体安定装置。One end of the connecting rod is pivoted to the left and right swing cases that support the wheels, and the other end of the connecting rod is pivoted on both sides.
In a rice transplanter, the left and right wheels can be selectively switched between a rocking state and a fixed state about a fulcrum shaft attached to a telescoping shaft extending in the longitudinal direction of the wheel elevating device. The center of gravity of the machine is unevenly distributed on the side of the body centered on the axis, and the arm ratio from the telescopic axis of the swinging rod to the pivot position of the connecting rod is configured such that one side of the center of gravity of the machine is unevenly distributed and the other side is long. A body stabilizing device for a rice transplanter, characterized in that it is configured to maintain an equilibrium state with the left and right rotation moment of the swinging rod about the fulcrum axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978155353U JPS5814824Y2 (en) | 1978-11-10 | 1978-11-10 | Machine stabilization device in rice transplanter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978155353U JPS5814824Y2 (en) | 1978-11-10 | 1978-11-10 | Machine stabilization device in rice transplanter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5569917U JPS5569917U (en) | 1980-05-14 |
| JPS5814824Y2 true JPS5814824Y2 (en) | 1983-03-25 |
Family
ID=29144302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978155353U Expired JPS5814824Y2 (en) | 1978-11-10 | 1978-11-10 | Machine stabilization device in rice transplanter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5814824Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442614B2 (en) * | 1975-04-24 | 1979-12-15 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5728575Y2 (en) * | 1977-08-31 | 1982-06-22 |
-
1978
- 1978-11-10 JP JP1978155353U patent/JPS5814824Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442614B2 (en) * | 1975-04-24 | 1979-12-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5569917U (en) | 1980-05-14 |
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