JPH0713451Y2 - Rearward-shifting switching interlocking mechanism for passenger rice transplanters - Google Patents
Rearward-shifting switching interlocking mechanism for passenger rice transplantersInfo
- Publication number
- JPH0713451Y2 JPH0713451Y2 JP1988061876U JP6187688U JPH0713451Y2 JP H0713451 Y2 JPH0713451 Y2 JP H0713451Y2 JP 1988061876 U JP1988061876 U JP 1988061876U JP 6187688 U JP6187688 U JP 6187688U JP H0713451 Y2 JPH0713451 Y2 JP H0713451Y2
- Authority
- JP
- Japan
- Prior art keywords
- lever
- link
- clutch
- planting device
- planting
- 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
Links
Landscapes
- Transplanting Machines (AREA)
Description
【考案の詳細な説明】 (イ)産業上の利用分野 本考案は、乗用田植機の後進切換連動機構に関する。[Detailed Description of the Invention] (a) Field of Industrial Use The present invention relates to a reverse switching interlocking mechanism for a riding rice transplanter.
(ロ)従来の技術 従来、乗用田植機は、自走可能な田植機本体の後方に、
植付装置を、昇降リンク機構を介して昇降自在に連結し
ている。(B) Conventional technology In the past, passenger rice transplanters were installed behind the self-propelled rice transplanter body.
The planting device is vertically movable via an elevating link mechanism.
そして、田植機本体には、前進変速操作及び後進切換操
作するための主変速レバーと、植付装置を上下昇降操作
するための植付装置昇降レバーとを設けると共に、主変
速レバーの後進切換操作に連動して、植付装置昇降レバ
ーを植付装置上昇側へ作動させる後進連動スプリングを
具備する連動機構を配設している。Further, the rice transplanter main body is provided with a main speed change lever for performing a forward speed change operation and a reverse speed change operation, and a planting device elevating lever for vertically moving the planting apparatus, and a reverse speed change operation of the main speed change lever. The interlocking mechanism is provided with a backward interlocking spring that operates the raising / lowering lever of the planting device to the raising side of the planting device.
また、田植機本体に設けたミッションケース内には、植
付装置への動力伝達を断続する植付クラッチを設け、同
クラッチと上記後進連動スプリングとの間に植付クラッ
チ切断スプリングをリンクを介して介設し、上記した主
変速レバー後進切換作動に連動して植付クラッチの切断
作動が行なえるようにしている。In addition, a planting clutch that connects and disconnects power transmission to the planting device is provided in the mission case provided in the rice transplanter body, and a planting clutch disconnection spring is connected via a link between the clutch and the reverse linkage spring. It is interposed so that the disengagement operation of the planted clutch can be performed in conjunction with the reverse operation of the main speed change lever.
(ハ)考案が解決しようとする課題 ところが、上記構造では、主変速レバーと植付クラッチ
とを、二つのスプリング、すなわち後進連動スプリング
と植付クラッチ切断用スプリングとを連結して連動させ
るようにしているために、連動力の伝達の応答性が悪
く、確実な連動操作が行なえないという問題があった。(C) Problems to be Solved by the Invention However, in the above structure, the main transmission lever and the planting clutch are linked to each other by connecting two springs, that is, a reverse drive interlocking spring and a planting clutch disconnecting spring. Therefore, the responsiveness of transmission of the interlocking force is poor, and there is a problem that a reliable interlocking operation cannot be performed.
(ニ)課題を解決するための手段 そこで、本考案では、自走可能な田植機本体の後方に、
植付装置を昇降自在に連結し、田植機本体に設けた前後
進変速作用の主変速レバーに植付装置昇降レバーを連動
連結し、同植付装置昇降レバーに植付クラッチを連動連
結し、主変速レバーの後進切換作動に連動して、植付装
置昇降レバーを植付装置上昇側へ切換作動させると共
に、植付装置への動力伝達を継続する植付クラッチも切
換作動させるべく構成してなる乗用田植機において、植
付装置昇降レバーを支持するレバー支軸に、上下方向に
伸延する仮止めレバーの中途部を取付け、同レバーの下
端部とミッションケースに内蔵した植付クラッチとの間
に連動機構を介設し、連動機構は、植付クラッチを断続
作動させるクラッチ作動アームの回動支軸に、上下方向
に伸延するリンクの中途部を同軸的に取付けると共に、
同リンクを上記仮止めレバーと前後に略平行させて配置
し、さらに、同リンクの上端と仮止めレバーの下端部と
の間に植付クラッチ切断用スプリングを介設する一方、
同リンクの下端と仮止めレバーの下端との間に連動ロッ
ドを介設して平行リンク機構を形成し、植付クラッチ切
断用スプリングは、リンクと仮止めレバーとをそれぞれ
各支軸を中心に同一方向に回動付勢すると共に、主変速
レバーの後進変速操作に仮止めレバーの仮止め解除動作
を連動させて、上記スプリングにより同一方向に回動す
るリンクと仮止めレバーとを介して、植付クラッチ切断
作動と植付装置上昇切替作動とを連動させたことを特徴
とする乗用田植機の後進切換連動機構を提供せんとする
ものである。(D) Means for Solving the Problem Therefore, in the present invention, in the rear of the self-propelled rice transplanter body,
The planting device is connected so that it can be moved up and down, the main shifting lever for forward and backward shifting provided on the rice transplanter body is linked to the planting device lifting lever, and the planting device lifting lever is linked to the planting clutch. In conjunction with the reverse switching operation of the main gear shift lever, the planting device elevating lever is switched to the planting device rising side, and the planting clutch that continues power transmission to the planting device is also switched. In the riding rice transplanter, the middle part of the temporary locking lever that extends in the vertical direction is attached to the lever spindle that supports the lifting lever for the planting device, and between the lower end of the lever and the planting clutch built into the mission case. An interlocking mechanism is installed in the interlocking mechanism, and the interlocking mechanism coaxially attaches the middle part of the link extending in the vertical direction to the pivot shaft of the clutch operating arm that intermittently operates the planted clutch.
The link is arranged substantially parallel to the front and rear of the temporary locking lever, and further, a spring for cutting the planting clutch is provided between the upper end of the link and the lower end of the temporary locking lever,
A parallel link mechanism is formed by inserting an interlocking rod between the lower end of the link and the lower end of the temporary fixing lever, and the planting clutch disconnection spring has the link and the temporary fixing lever centered on each spindle. While urging in the same direction, by interlocking the temporary stop release operation of the temporary stop lever with the reverse speed change operation of the main speed change lever, through the link and the temporary stop lever that rotate in the same direction by the spring, It is intended to provide a reverse switching interlocking mechanism for a riding rice transplanter, which is characterized by interlocking a planting clutch disengagement operation and a planting apparatus raising switching operation.
(ホ)作用・効果 本考案では、前後に略平行させて配置したリンクと仮止
めレバーとの間に介設した一本の植付クラッチ切断用ス
プリングにより、植付クラッチの切断作動と植付装置の
上昇作動という二系統の作動を行なうようにしているた
めに、連動力の伝達の応答性を良好に確保して、かかる
二系統の作動を円滑かつ確実に行なわせることができ
る。(E) Operation / effect In the present invention, a single planting clutch disconnection spring interposed between the link and the temporary locking lever, which are arranged substantially parallel to each other in the front and rear, causes the planting clutch to be disengaged and planted. Since the two-system operation of raising the device is performed, the responsiveness of the transmission of the interlocking force can be ensured favorably, and the two-system operation can be smoothly and reliably performed.
しかも、一本の植付クラッチ切断用スプリングにより、
上記二系統の作動が行なえるようにしているために、構
造の簡易化が図れる。Moreover, with one spring for disconnecting the planted clutch,
Since the above two systems can be operated, the structure can be simplified.
(ヘ)実施例 本考案の実施例を図面にもとづき詳説すれば、第1図及
び第2図に示す(A)は乗用田植機であり、自走可能な
田植機本体(1)の後方に、植付装置(2)を昇降リン
ク機構(3)を介して昇降自在に連結してなる。(F) Embodiments An embodiment of the present invention will be described in detail with reference to the drawings. (A) shown in FIGS. 1 and 2 is a riding rice transplanter, which is provided behind a self-propellable rice transplanter body (1). The planting device (2) is connected via a lifting link mechanism (3) so as to be lifted and lowered.
そして、田植機本体(1)は、機体フレーム(a)上に
原動機部(4′)を載設し、同機体フレーム(a)の後
端にミッションケース(4)の前端部を連結し、同ミッ
ションケース(4)の前部左右側に左右フロントアクス
ルケース(5)(5)を突設し、各ケース(5)(5)
に前車輪(6)(6)を取付け、また、ミッションケー
ス(4)の後端部に連結機枠(7)を連結し、同連結機
枠(7)の後端左右側に左右リヤアクスルケース(8)
(8)を取付け、各ケース(8)(8)に後車輪(9)
(9)を取付け、ミッションケース(4)及び連結機枠
(7)の上方に運転部(10)を設けている。Then, the rice transplanter main body (1) mounts the prime mover part (4 ') on the machine body frame (a), connects the front end part of the mission case (4) to the rear end of the machine body frame (a), Left and right front axle cases (5) and (5) are projectingly provided on the left and right sides of the front part of the mission case (4), and each case (5) (5)
Front wheels (6) and (6) are attached to the rear end of the transmission case (4), and the connecting frame (7) is connected to the rear end of the transmission case (4). (8)
(8) is attached, and the rear wheel (9) is attached to each case (8) (8).
(9) is attached, and the operating section (10) is provided above the mission case (4) and the connecting machine frame (7).
運転部(10)は、前部に原動機部(4′)のボンネット
とハンドルコラムを兼用する前部ケーシング(11)を設
けて、同ケーシング(11)の上面にハンドル(12)を取
付けると共に、上部左側面に副変速レバー(13)を上方
へ向けて突設し、また、同ケーシング(11)の後方で前
記連結機枠(7)上に座席(14)を設け、同座席(14)
の左側方に前後進変速操作用の主変速レバー(15)を配
設し、同座席(14)の右側方に植付装置昇降レバー(1
5′)を配設している。The operating section (10) is provided with a front casing (11) that also serves as a bonnet of the prime mover section (4 ') and a handle column, and a handle (12) is attached to the upper surface of the casing (11). A sub-transmission lever (13) is provided on the upper left side surface so as to project upward, and a seat (14) is provided on the coupling frame (7) behind the casing (11).
The main shift lever (15) for forward and backward shifting operation is arranged on the left side of the planting device lifting lever (1) on the right side of the seat (14).
5 ') is provided.
また、(16)は、床面、変速ガイド板、フェンダー、座
席取付板等を兼用すべく、FRP等の高剛性を有する合成
樹脂により一体成形した座席下部ケーシングであり、座
席(14)は同ケーシング(16)に直接取付けている。Further, (16) is a lower seat casing integrally molded with a synthetic resin having high rigidity such as FRP so as to also serve as a floor surface, a speed change guide plate, a fender, a seat mounting plate, etc., and the seat (14) is the same. It is attached directly to the casing (16).
(17)は原動機部(4′)に設けた駆動軸、(18)はミ
ッションケース(4)の後上部に設けた受動軸、(19)
は駆動軸(17)と受動軸(18)との間に巻回した伝動ベ
ルトである。(17) is a drive shaft provided in the motor part (4 '), (18) is a passive shaft provided in the upper rear part of the mission case (4), (19)
Is a transmission belt wound between the drive shaft (17) and the passive shaft (18).
(20)(20)は伝動軸であり、ミッションケース(4)
の中央部左右側に突設した出力軸(21)(21)と、左右
リヤアクスルケース(8)(8)の入力軸(22)(22)
との間に介設している。(20) (20) is the transmission shaft, mission case (4)
Output shafts (21) (21) protruding from the left and right sides of the central part of the vehicle, and input shafts (22) (22) of the left and right rear axle cases (8) (8)
It is installed between and.
また、連結機枠(7)は、ミッションケース(4)の後
部左右側壁に、左右一対の下部連結フレーム(30)(3
0)を後方へ連設し、同連結フレーム(30)(30)の後
端間に下部連結横枠(31)を横架連結して、平面視矩形
状の機枠を形成し、かつ下部連結横枠(31)に左右一対
の縦フレーム(32)(32)を立設し、同縦フレーム(3
2)(32)の上端間に上部連結横枠(33)を横架連結し
て、背面視矩形状の機枠を形成し、かつ縦フレーム(3
2)(32)の上部とミッションケース(4)の後上部左
右側壁との間に、左右一対の上部連結フレーム(34)
(34)を前低後高の傾斜状に架設して、平面視矩形状の
機枠を形成すると共に、側面視台形状の機枠を形成する
ことにより、箱型フレーム構成としている。Further, the connecting frame (7) is provided on the left and right side walls of the rear part of the mission case (4) with a pair of left and right lower connecting frames (30) (3).
0) are connected to the rear, and a lower connecting horizontal frame (31) is horizontally connected between the rear ends of the connecting frames (30) (30) to form a machine frame having a rectangular shape in plan view, and A pair of left and right vertical frames (32, 32) are erected on the connecting horizontal frame (31), and the vertical frame (3
2) An upper connecting horizontal frame (33) is horizontally connected between the upper ends of (32) to form a machine frame having a rectangular shape in rear view and a vertical frame (3
2) A pair of left and right upper connecting frames (34) are provided between the upper part of the (32) and the rear upper and left side walls of the mission case (4).
The (34) is installed in a front-rear-rear-high inclined manner to form a machine frame having a rectangular shape in plan view and a machine frame having a trapezoidal shape in side view, thereby forming a box-type frame structure.
そして、左右に対向する上部連結フレーム(34)(34)
の中途部間に補強横管(35)を横架連結し、かつ左右側
の上下部連結フレーム(34)(34)(30)(30)の前部
間に補強板(37)(37)を張設している。(S)は連結
機枠(7)により形成される内部空間である。Then, the left and right upper connecting frames (34) (34)
Reinforcing horizontal pipes (35) are horizontally connected between the middle portions, and reinforcing plates (37) (37) are provided between the front portions of the upper and lower connecting frames (34) (34) (30) (30) on the left and right sides. Is installed. (S) is an internal space formed by the connector frame (7).
このように、連結機枠(7)は、箱型フレーム構成とし
ているために、軽量にして曲げ、捩り等に対する剛性を
大きくすることができ、しかも連結機枠(7)により形
成される内部空間(S)を、後述するように昇降シリン
ダ(47)等の配設空間とすることができる。As described above, since the coupler frame (7) has a box-shaped frame structure, the coupler frame (7) can be made lightweight and have high rigidity against bending, twisting, and the like, and further, the internal space formed by the coupler frame (7). (S) can be a space for disposing the lifting cylinder (47) and the like, as described later.
また、前記昇降リンク機構(3)は、連結機枠(7)の
縦フレーム(32)(32)と植付装置(2)との間に介設
しているものである。The lifting link mechanism (3) is interposed between the vertical frames (32) (32) of the connector frame (7) and the planting device (2).
すなわち、昇降リンク機構(3)は、第1図及び第2図
に示すように、前端を左右一対の縦フレーム(32)(3
2)の上部間に軸架した支軸(38)に枢支し、後端を植
付装置(2)の植付フレーム(39)の上部に枢支(40
a)連結した上部リンク(40)と、前端を左右の縦フレ
ーム(32)(32)の下部に枢支(41a)(41a)連結し、
後端を上記植付フレーム(39)の下端間に軸架した連結
支軸(42)に枢支した左右一対の下部リンク(43)(4
3)とにより平行リンクを形成し、各下部リンク(43)
(43)の前端に基端を一体的に取付けた左右一対のリフ
トアーム(44)(44)と、同リフトアーム(44)(44)
の先端間とミッションケース(4)の後端下部との間に
昇降シリンダ(47)を、前記連結機枠(7)の内部空間
(S)内で介設し、同リフトアーム(44)(44)の先端
と連結支軸(42)との間に引張補強リンク(45)(45)
を介設して構成している。That is, as shown in FIGS. 1 and 2, the lifting link mechanism (3) has a pair of left and right vertical frames (32) (3
2) is pivotally supported by a support shaft (38) that is mounted between the upper parts of the two, and the rear end is pivotally supported (40) by the upper part of the planting frame (39) of the planting device (2)
a) The upper link (40) connected and the front end are pivotally connected (41a) (41a) to the lower parts of the left and right vertical frames (32) (32),
A pair of left and right lower links (43) (4) whose rear ends are pivotally supported by a connecting support shaft (42) which is mounted between the lower ends of the planting frames (39).
3) and form parallel links, and each lower link (43)
A pair of left and right lift arms (44) and (44) with the base end integrally attached to the front end of (43), and the lift arms (44) and (44)
An elevating cylinder (47) is provided between the tip of the lift case (4) and the lower part of the rear end of the mission case (4) in the internal space (S) of the coupling machine frame (7), and the lift arm (44) ( Tensile reinforcement link (45) (45) between the tip of 44) and the connecting support shaft (42)
It is configured by interposing.
また、上記昇降シリンダ(47)は、シリンダロッド(47
a)を短縮作動させることにより、リフトアーム(44)
(44)を前下方へ回動させて、上下部リンク(40)(4
3)(43)を介して植付装置(2)を上昇作動させ、又
反対に同シリンダロッド(47a)を伸長作動させること
により植付装置(2)を下降作動させるものである。In addition, the lifting cylinder (47) includes a cylinder rod (47
By shortening a), lift arm (44)
Rotate (44) forward and downward to move the upper and lower links (40) (4
3) The planting device (2) is raised by way of (43), and conversely, the cylinder rod (47a) is extended so that the planting device (2) is lowered.
また、第1図及び第2図に示す植付装置(2)におい
て、(51)は植付ミッションケース、(52)は苗載台、
(53)はフロートである。Further, in the planting device (2) shown in FIGS. 1 and 2, (51) is a planting mission case, (52) is a seedling mount,
(53) is a float.
また、(50)は田植機本体(1)のミッションケース
(4)と植付装置(2)の植付ミッションケース(51)
とを連動連結する植付伝動軸である。Further, (50) is a mission case (4) of the rice transplanter body (1) and a mission case (51) of the planting device (2).
It is a planted transmission shaft that connects and link with.
また、前記した主変速レバー(15)は、基端を前記補強
横管(35)中に挿貫した連動軸(60)の左側端に連動連
結すると共に、ミッションケース(4)に内蔵した主変
速機構(図示せず)に連動連結している。Further, the main transmission lever (15) has its base end interlockingly connected to the left end of the interlocking shaft (60) inserted through the reinforcing lateral pipe (35), and is also incorporated in the mission case (4). It is interlockingly connected to a speed change mechanism (not shown).
また、植付装置昇降レバー(15′)は、第2図及び第3
図に示すように、基端を右側の上部連結フレーム(34)
より横外側方へ突設した支持パイプ(61)に軸芯廻りに
回動自在に取付けしたレバー支軸(62)の先端に取付け
ている。Also, the planting device lifting lever (15 ') is shown in Figs.
As shown, the base end is on the right side of the upper connecting frame (34)
It is attached to the tip of a lever support shaft (62) which is attached to a support pipe (61) protruding further laterally outward so as to be rotatable around its axis.
そして、植付装置昇降レバー(15′)は、第4図及び第
5図に示すように、スプリング(63)により植付装置上
昇側、すなわち、レバー支軸(62)を時計方向に回動さ
せるように常時付勢されている。As shown in FIGS. 4 and 5, the planting device elevating lever (15 ′) rotates the planting device rising side, that is, the lever support shaft (62) in the clockwise direction by the spring (63). It is always urged to let you.
また、上記レバー支軸(62)の中途部には、第3図〜第
5図に示すように、バルブ作動片(64)を設け、同作動
片(64)の直後に配設した油圧調整バルブ(65)のスプ
ール(65a)に当接させている。Further, as shown in FIGS. 3 to 5, a valve actuating piece (64) is provided in the middle of the lever support shaft (62), and a hydraulic pressure adjustment is provided immediately after the actuating piece (64). It is in contact with the spool (65a) of the valve (65).
そして、かかるバルブ作動片(64)は植付装置昇降レバ
ー(15′)の植付装置上昇側回動作動に連動してスプー
ル(65a)を押圧後退作動させて油圧調整バルブ(65)
により昇降シリンダ(47)を短縮作動させることによ
り、植付装置(2)を上昇させることができるようにし
ている。(66)はバルブ作動片受け、(67)はバルブ作
動片付勢スプリング、(68)はバルブ支持枠、(69)は
ステーである。Then, the valve actuating piece (64) presses and retracts the spool (65a) in conjunction with the turning movement of the planting device lifting lever (15 ') on the planting device rising side, and the hydraulic pressure adjusting valve (65).
Thus, the planting device (2) can be raised by shortening the lifting cylinder (47). (66) is a valve operating piece receiver, (67) is a valve operating piece biasing spring, (68) is a valve support frame, and (69) is a stay.
また、レバー支軸(62)の基端側には、仮止めレバー
(70)を設けており、同レバー(70)は、中途部をレバ
ー支軸(62)に固着し、上端面を前後幅広に形成すると
共に、同上端面に仮止め凹部(70a)を設け、他方、下
端部(70b)とミッションケース(4)に内蔵した植付
クラッチ(71)との間に連動機構(72)を介設してい
る。In addition, a temporary fixing lever (70) is provided on the base end side of the lever support shaft (62). The lever (70) has a middle portion fixed to the lever support shaft (62) and the upper end surface is moved forward and backward. In addition to being formed wide, a temporary fixing recess (70a) is provided on the upper end surface, while an interlocking mechanism (72) is provided between the lower end portion (70b) and the planted clutch (71) built in the mission case (4). It is installed.
かかる連動機構(72)は、植付クラッチ(71)を断続作
動させるクラッチ作動アーム(73)の回動支軸(74)
に、リンク(75)は中途部を同軸的に取付けると共に、
同リンク(75)を上記仮止めレバー(70)と前後に略平
行させて配置し、さらに、同リンク(75)の上端(75
a)と仮止めレバー(70)の下端部(70b)との間に植付
クラッチ切断用スプリング(76)を介設する一方、同リ
ンク(75)の下端(75b)と仮止めレバー(70)の下端
(70c)との間に連動ロッド(77)を介設して、平行リ
ンク機構を形成している。The interlocking mechanism (72) includes a rotation support shaft (74) of a clutch operating arm (73) for intermittently operating the planted clutch (71).
In addition, the link (75) coaxially attaches the middle part,
The link (75) is arranged substantially parallel to the front and rear of the temporary locking lever (70), and the upper end (75
While a spring (76) for disconnecting the planted clutch is provided between a) and the lower end portion (70b) of the temporary lock lever (70), the lower end (75b) of the link (75) and the temporary lock lever (70) are also provided. ) And a lower end (70c) of the interlocking rod (77) to form a parallel link mechanism.
そして、かかる連動機構(72)において、植付クラッチ
切断用スプリング(76)は、リンク(75)と仮止めレバ
ー(70)とをそれぞれ各支軸(75)(62)を中心に時計
方向に回動させるように引張付勢しており、同レバー
(70)の仮止め解除に伴って、同レバー(70)が時計方
向に回動すると、リンク(75)も時計方向に回動し、同
リンク(75)に回動支軸(74)を介して連動連結したク
ラッチ作動アーム(73)が植付クラッチ(71)を切断作
動させるように構成している。Then, in the interlocking mechanism (72), the planted clutch disconnection spring (76) rotates the link (75) and the temporary fixing lever (70) clockwise around the respective support shafts (75) (62). When the lever (70) is rotated clockwise with the temporary release of the lever (70), the link (75) is also rotated clockwise, A clutch operating arm (73) interlockingly connected to the link (75) through a pivot shaft (74) is configured to disengage the planted clutch (71).
また、仮止めレバー(70)は、右側の上部連結フレーム
(34)の中途部に基端を枢軸(78′)により上下回動自
在に取付けた仮止めアーム(78)により仮止め可能とす
ると共に、同アーム(78)を、前記連動軸(60)の右側
端に設けた仮止め解除アーム(79)により仮止め解除可
能に構成している。Further, the temporary fixing lever (70) can be temporarily fixed by a temporary fixing arm (78) whose base end is attached to a middle part of the right upper connecting frame (34) by a pivot (78 ') so as to be vertically rotatable. At the same time, the arm (78) is configured to be temporarily released by a temporary release arm (79) provided at the right end of the interlocking shaft (60).
(80)は引張スプリングであり、仮止めアーム(78)の
先端と前記連結機枠(7)の前部右側に設けた補強板
(37)との間に介設して、仮止めアーム(78)の中途部
に設けた仮止めローラ(78a)を、仮止めレバー(70)
の上端面に設けた仮止め凹部(70a)に仮止めさせる方
向に付勢している。Reference numeral (80) is a tension spring, which is provided between the tip of the temporary fixing arm (78) and the reinforcing plate (37) provided on the right side of the front part of the connecting machine frame (7) to provide the temporary fixing arm ( 78) Install the temporary fixing roller (78a) in the middle of the temporary fixing lever (70)
Is urged in a direction in which it is temporarily fixed to a temporary fixing recess (70a) provided on the upper end surface of the.
そして、仮止めアーム(78)の仮止めローラ(78a)と
仮止めレバー(70)の仮止め凹部(70a)との仮止め解
除は、主変速レバー(15)を後進切換作動、すなわち、
第4図において、主変速レバー(15)に連動連結した連
動軸(60)を時計方向に回動させることにより、同連動
軸(60)の右側端に設けた仮止め解除アーム(79)を時
計方向に回動させ、同解除アーム(79)の先端ローラ
(79a)に当接した仮止めアーム(78)を引張スプリン
グ(80)の付勢に抗して上方へ回動させて行なうように
している。Then, the temporary fixing release of the temporary fixing roller (78a) of the temporary fixing arm (78) and the temporary fixing concave portion (70a) of the temporary fixing lever (70) causes the main speed change lever (15) to perform the reverse switching operation, that is,
In FIG. 4, by rotating the interlocking shaft (60) interlockingly connected to the main gearshift lever (15) in the clockwise direction, the temporary release arm (79) provided at the right end of the interlocking shaft (60) is moved. It is rotated clockwise so that the temporary holding arm (78) that is in contact with the tip roller (79a) of the release arm (79) is rotated upward against the bias of the tension spring (80). I have to.
上記の構成により、主変速レバー(15)を後進切換作動
させると、植付クラッチ(71)が切断作動すると共に、
植付装置(2)が上昇作動するものである。With the above configuration, when the main transmission lever (15) is operated to perform the reverse drive, the planted clutch (71) is disengaged and
The planting device (2) is raised.
すなわち、主変速レバー(15)を後進切換作動させる
と、連動軸(60)が時計方向に回動し、同連動軸(60)
に設けた仮止め解除アーム(79)が仮止めアーム(78)
を上方へ回動させ、同アーム(78)に設けた仮止めロー
ラ(78a)と仮止めレバー(70)の仮止め凹部(70a)と
の仮止めを解除する。That is, when the main speed change lever (15) is operated to switch backward, the interlocking shaft (60) rotates clockwise, and the interlocking shaft (60)
The temporary fixing release arm (79) provided on the
Is rotated upward to release the temporary fixing between the temporary fixing roller (78a) provided on the arm (78) and the temporary fixing recess (70a) of the temporary fixing lever (70).
この際、仮止めレバー(70)と、植付クラッチ(71)の
断続作動させるクラッチ作動アーム(73)の回動支軸
(74)に中途部を同軸的に取付けたリンク(75)とは、
前後に略平行させて配置し、の仮止めレバー(70)の下
端部(70b)と、リンク(75)の上端(75a)との間に、
クラッチ切断用スプリング(76)を介設すると共に、仮
止めレバー(70)の下端(70c)とリンク(75)の下端
(75b)との間に連動ロッド(77)を介設して平行リン
ク機構を形成して、同クラッチ切断用スプリング(76)
によりリンク(75)と仮止めレバー(70)とをそれぞれ
各支軸(74)(62)を中心に時計方向に回動付勢させて
いるために、仮止めレバー(70)が仮止め解除される
と、時計方向に回動される仮止めレバー(70)に連動し
てリンク(75)も時計方向に回動し、同リンク(75)に
回動支軸(74)を介して連動連結したクラッチ作動アー
ム(73)が植付クラッチ(71)を切断作動させる。At this time, the temporary locking lever (70) and the link (75) coaxially attached to the rotation support shaft (74) of the clutch operation arm (73) for intermittently operating the planted clutch (71) ,
Arranged approximately parallel to the front and back, between the lower end (70b) of the temporary locking lever (70) and the upper end (75a) of the link (75),
The clutch disengagement spring (76) is installed, and the interlocking rod (77) is installed between the lower end (70c) of the temporary locking lever (70) and the lower end (75b) of the link (75) to provide a parallel link. Spring for cutting the clutch forming mechanism (76)
Since the link (75) and the temporary fixing lever (70) are urged to rotate clockwise about the support shafts (74) (62) respectively, the temporary fixing lever (70) is released from the temporary fixing. Then, the link (75) is also rotated clockwise by interlocking with the temporary locking lever (70) which is rotated clockwise, and the link (75) is interlocked with the pivot shaft (74). The connected clutch actuating arm (73) disengages the planted clutch (71).
一方、上記仮止めレバー(70)に連動連結したレバー支
軸(62)も時計方向に回動し、同支軸(62)に設けた植
付装置昇降レバー(15′)及びバルブ作動片(64)が時
計方向へ回動し、同作動片(64)が油圧調整バルブ(6
5)をスプール(65a)を介して作動させ、昇降シリンダ
(47)を短縮作動させて植付装置(2)を上昇作動させ
るものである。On the other hand, the lever support shaft (62) interlockingly connected to the temporary locking lever (70) also rotates clockwise, and the planting device lifting lever (15 ') and valve operating piece ( 64) rotates clockwise and the operating piece (64) moves the hydraulic adjustment valve (6
5) is operated via the spool (65a), the lifting cylinder (47) is shortened, and the planting device (2) is lifted.
このように、本実施例では、仮止めレバー(70)を回動
させて、二系統の作動、すなわち植付クラッチ(71)の
切断作動及び植付装置(2)の上昇作動を、一本の植付
クラッチ切断用スプリング(76)により行なうようにし
ているために、連動力の伝達の応答性の悪化を最少限に
して、かかる二系統の作動を円滑かつ確実にすることが
できる。As described above, in this embodiment, the temporary locking lever (70) is rotated to perform two systems of operations, namely, the disengagement operation of the planting clutch (71) and the raising operation of the planting device (2). Since it is performed by the spring (76) for disengaging the planted clutch, the deterioration of the response of the transmission of the interlocking force can be minimized, and the operation of the two systems can be smoothly and reliably performed.
しかも、一本の植付クラッチ切断用スプリング(76)に
より上記二系統の作動が行なえるようにしているため
に、構造の簡易化が図れる。Moreover, since the two springs for disengaging the planted clutch (76) can operate the above two systems, the structure can be simplified.
第1図は、本考案に係る乗用田植機の側面図。 第2図は、同平面図。 第3図は、要部平面図。 第4図は、第3図のX矢視図。 第5図は、第3図のY矢視図。 (A):乗用田植機 (1):田植機本体 (2):植付装置 (3):昇降リンク機構 (4):ミッションケース (5):フロントアクスルケース (7):連結機枠 (8):リヤアクスルケース (15):主変速レバー (15′):植付装置昇降レバー (71):植付クラッチ (76):植付クラッチ切断用スプリング FIG. 1 is a side view of a riding rice transplanter according to the present invention. FIG. 2 is a plan view of the same. FIG. 3 is a plan view of an essential part. FIG. 4 is a view on arrow X in FIG. 3. FIG. 5 is a view on arrow Y of FIG. (A): Riding rice transplanter (1): Rice transplanter main body (2): Planting device (3): Lifting link mechanism (4): Mission case (5): Front axle case (7): Frame of connecting machine (8) ): Rear axle case (15): Main transmission lever (15 '): Planting device lifting lever (71): Planting clutch (76): Planting clutch disconnection spring
Claims (1)
付装置(2)を昇降自在に連結し、田植機本体(1)に
設けた前後進変速作用の主変速レバー(15)に植付装置
昇降レバー(15′)を連動連結し、同植付装置昇降レバ
ー(15′)に植付クラッチ(71)を連動連結し、主変速
レバー(15)の後進切換作動に連動して、植付装置昇降
レバー(15′)を植付装置上昇側へ切換作動させると共
に、植付装置(2)への動力伝達を継続する植付クラッ
チ(71)も切断作動させるべく構成してなる乗用田植機
において、 植付装置昇降レバー(15′)を支持するレバー支軸(6
2)に、上下方向に伸延する仮止めレバー(70)の中途
部を取付け、同レバー(70)の下端部(70b)とミッシ
ョンケース(4)に内蔵した植付クラッチ(71)との間
に連動機構(72)を介設し、 連動機構(72)は、植付クラッチ(71)を断続作動させ
るクラッチ作動アーム(73)の回動支軸(74)に、上下
方向に伸延するリンク(75)の中途部を同軸的に取付け
ると共に、同リンク(75)を上記仮止めレバー(70)と
前後に略平行させて配置し、さらに、同リンク(75)の
上端(75a)と仮止めレバー(70)の下端部(70b)との
間に植付クラッチ切断用スプリング(76)を介設する一
方、同リンク(75)の下端(75b)と仮止めレバー(7
0)の下端(70c)との間に連動ロッド(77)を介設して
平行リンク機構を形成し、 植付クラッチ切断用スプリング(76)は、リンク(75)
と仮止めレバー(70)とをそれぞれ各支軸(74)(62)
を中心に同一方向に回動付勢すると共に、主変速レバー
(15)の後進変速操作に仮止めレバー(70)の仮止め解
除動作を連動させて、上記スプリング(76)により同一
方向に回動するリンク(75)と仮止めレバー(70)とを
介して、植付クラッチ切断作動と植付装置上昇切替作動
とを連動させたことを特徴とする乗用田植機の後進切換
連動機構。1. A main transmission lever (1) for forward and backward shifting, which is provided on the rice transplanter main body (1) with a planting device (2) vertically connected to the rear of the self-propelled rice transplanter main body (1). 15) The planting device elevating lever (15 ') is interlockingly connected, and the planting device elevating lever (15') is interlockingly connected with the planting clutch (71), so that the main speed change lever (15) can be switched to the reverse direction. In conjunction with this, the planting device elevating lever (15 ') is switched to the planting device ascending side, and the planting clutch (71) for continuing power transmission to the planting device (2) is also disengaged. In the riding rice transplanter, the lever support shaft (6) that supports the planting device lifting lever (15 ')
The intermediate part of the temporary locking lever (70) extending vertically is attached to 2), and between the lower end (70b) of the lever (70) and the planted clutch (71) built into the mission case (4). An interlocking mechanism (72) is installed in the link mechanism. The interlocking mechanism (72) is a link that extends in the up-down direction on the rotation support shaft (74) of the clutch operating arm (73) that intermittently operates the planted clutch (71). Install the midway part of (75) coaxially, and arrange the link (75) approximately parallel to the front and rear of the temporary locking lever (70). Further, temporarily connect it to the upper end (75a) of the link (75). While a spring (76) for disconnecting the planted clutch is provided between the lower end (70b) of the stop lever (70), the lower end (75b) of the link (75) and the temporary stop lever (7).
The parallel link mechanism is formed by interposing the interlocking rod (77) with the lower end (70c) of the (0), and the spring (76) for disconnecting the planted clutch is the link (75).
And temporary fixing lever (70) for each support shaft (74) (62)
The spring (76) rotates in the same direction by urging the main gear lever (15) to rotate in the same direction and interlocking the reverse gear shift operation of the main gear shift lever (15) with the temporary lock release operation of the temporary lock lever (70). A backward switching interlocking mechanism for a riding rice transplanter characterized by interlocking a disengagement operation of a planting clutch and a switching operation of raising a planting apparatus via a moving link (75) and a temporary locking lever (70).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988061876U JPH0713451Y2 (en) | 1988-05-10 | 1988-05-10 | Rearward-shifting switching interlocking mechanism for passenger rice transplanters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988061876U JPH0713451Y2 (en) | 1988-05-10 | 1988-05-10 | Rearward-shifting switching interlocking mechanism for passenger rice transplanters |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01167819U JPH01167819U (en) | 1989-11-27 |
JPH0713451Y2 true JPH0713451Y2 (en) | 1995-04-05 |
Family
ID=31287521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988061876U Expired - Lifetime JPH0713451Y2 (en) | 1988-05-10 | 1988-05-10 | Rearward-shifting switching interlocking mechanism for passenger rice transplanters |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0713451Y2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60160107U (en) * | 1984-04-01 | 1985-10-24 | 三菱農機株式会社 | Automatic lifting device for riding work equipment |
-
1988
- 1988-05-10 JP JP1988061876U patent/JPH0713451Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH01167819U (en) | 1989-11-27 |
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