JPS6247744B2 - - Google Patents
Info
- Publication number
- JPS6247744B2 JPS6247744B2 JP55083535A JP8353580A JPS6247744B2 JP S6247744 B2 JPS6247744 B2 JP S6247744B2 JP 55083535 A JP55083535 A JP 55083535A JP 8353580 A JP8353580 A JP 8353580A JP S6247744 B2 JPS6247744 B2 JP S6247744B2
- Authority
- JP
- Japan
- Prior art keywords
- wheel differential
- differential
- front wheel
- pedal
- rear wheel
- 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
- 230000007246 mechanism Effects 0.000 claims description 53
- 230000005540 biological transmission Effects 0.000 description 11
- 230000000994 depressogenic effect Effects 0.000 description 5
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 230000000881 depressing effect Effects 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
Landscapes
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Description
【発明の詳細な説明】
この発明は４輪駆動方式の乗用農機特に乗用田
植機における前後車輪のデフロツク装置に関する
もので、耕盤の位置が深い圃場或いは畦際におけ
る回向のときのようにスリツプし易い場合に応じ
て前後車輪同時にデフロツク状態に、或いは、前
車輪のみをデフロツクするなどの切換操作を容易
としたデフロツク装置を提案するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deflock device for the front and rear wheels of a four-wheel-drive riding agricultural machine, particularly a riding rice transplanter, and is suitable for use in fields where the plowing platform is deep or when turning at the edge of a ridge. The purpose of the present invention is to propose a defrock device that allows easy switching operations such as defrocking both the front and rear wheels at the same time or defrocking only the front wheels, depending on the situation.
即ち、深い圃場では機体がかなり沈んでも前後
車輪が充分に耕盤に接地できずにスリツプし勝ち
であつて、左右１方の車輪がスリツプして高速回
転となれば他方の車輪は低速となつてしまい、正
常な直進ができなくなるので、この場合には前後
車輪を共にデフロツクすることにより、確実に走
行できるようにすべきであり、又、代掻後の圃場
は畦際では圃場表面が一般にやや高くなつてお
り、この畦際から少し離れた附近では圃場面が低
くなつているので、植付作業の際に畦際にて回向
操作をするとき機体が少し回向を始めれば回向内
側の前車輪に対してやや前位となる回向外側の前
車輪は、高くなつている畦際の圃場面に乗り上げ
ることになり、これに対して回向内側の前車輪は
低くなつている圃場面から浮上り気味の状態とな
り、この結果、回向内側の前車輪は抵抗がなくな
つて急速に回転を始めるが、外側の前車輪は圃場
から受ける大きい接地抵抗のために停止気味とな
る。したがつて機体は回向操作の方向に円滑に回
向できなくなるのであるが、このとき前車輪のみ
をデフロツクすると機体を回向させることができ
ることになる。そしてこのようなデフロツクの切
換操作は植付作業中にひんぱんに行う必要がある
ので、この発明においては、かかるデフロツク操
作を容易に行うことができるよう改良したもので
ある。更に、此種農機のデフロツク機構として特
開昭53−8931号公報に記載せられているものが知
られているが、之は、前輪デフロツクペダルと後
輪デフロツクペダルとが各別に設けられており、
従つて、後輪のデフロツクだけが行われる事態が
生じるのであり、この場合に於ては、直進性が悪
くなり、特に、田植機のような直進性を重要視す
る農作業機には、極めて大なる欠陥を有するもの
となる。そこで、之等の欠陥に鑑み、之を解消せ
んとして提案せられたものが本発明であり、前後
車輪の夫々を駆動する前輪デフギヤ機構と後輪デ
フギヤ機構を夫々設け、この前輪デフギヤ機構の
みをデフロツク状態に切替できるようにした前輪
デフロツクペダル機構と、前輪デフギヤ機構及び
後輪デフギヤ機構の双方を同時にデフロツク状態
に切替できる前後輪デフロツクペダル機構とを各
別に構成し、この両デフロツクペダル機構は、前
輪デフロツクペダル機構によるデフロツク操作時
には遊び機構によつて前後輪デフロツクペダル機
構側が作動されないように構成してなる乗用農機
におけるデフロツク装置を提供せんとするもので
ある。その構成を図示の実施例にもとづいて説明
すれば、図示の乗用田植機の前車輪駆動部は、左
右の前車輪１，１を回転駆動するために第２図に
示すようにミツシヨンケース２の前部へ夫々回転
自在に軸支されている左右の前輪駆動軸３，４に
はデフサイドギヤ５，６が嵌着され、前輪デフケ
ース７はデフサイドギヤ５とミツシヨンケース２
へ、又、リングギヤ８はデフサイドギヤ６とミツ
シヨンケース２へ、夫々、回転自在に嵌合して前
輪デフケース７とリングギヤ８をボルト９にて互
に固定し、ベベルギヤ１０，１０をデフサイドギ
ヤ５，６に噛合せて前輪デフギヤ機構１１を形成
し、前輪駆動軸４のスプラインボス４ａへ軸方向
にのみ移動自在に嵌入した前輪デフロツククラツ
チ１２のクラツチ爪１２ａを戻しばね１３に抗し
てリングギヤ８に設けられているクラツチ爪８ａ
に係合させれば、前輪デフケース７を介して左右
の前輪駆動軸３，４が１体となる前輪デフロツク
機構１４に構成し、回動軸１５と１体に回動でき
るように設けたデフロツクシフタ１６のシフタコ
マ１７を前輪デフロツククラツチ１２のシフタ溝
１２ｂに係合し、回動軸１５に固定したデフロツ
クアーム１８の回動操作により前輪デフロツクク
ラツチ１２のクラツチ切、入動作が行われるよう
構成している。 In other words, in deep fields, even if the machine sinks considerably, the front and rear wheels will not be able to make sufficient contact with the tiller and will likely slip, and if one wheel on the left or right slips and rotates at high speed, the other wheel will slow down. In this case, both the front and rear wheels should be deflocked to ensure safe running.In addition, the field surface after plowing should be kept at the edge of the ridges. The field is slightly higher, and the field area is lower near the ridge, so when turning at the edge of the ridge during planting work, if the machine starts turning a little, it will turn. The front wheel on the outside of the turn, which is slightly in front of the front wheel on the inside, will ride on the high ridge edge of the field, whereas the front wheel on the inside of the turn is lower. As a result, the front wheel on the inside of the turning wheel loses resistance and begins to rotate rapidly, but the front wheel on the outside comes to a halt due to the large ground resistance received from the field. . Therefore, the aircraft cannot turn smoothly in the direction of the turning operation, but if only the front wheels are defrocked at this time, the aircraft can be turned. Since it is necessary to frequently perform such a deflock switching operation during planting work, the present invention has been improved so that such a deflock operation can be easily performed. Furthermore, a deflock mechanism for this type of agricultural machinery is known, which is described in Japanese Patent Application Laid-Open No. 53-8931. and
Therefore, a situation arises in which only the rear wheels are deflocked, and in this case, straight-line performance deteriorates, which is extremely important, especially for agricultural machines such as rice transplanters that place importance on straight-line performance. It will have some defects. Therefore, in view of these deficiencies, the present invention was proposed in order to solve the above problems.A front wheel differential gear mechanism and a rear wheel differential gear mechanism that drive the front and rear wheels respectively are provided, and only this front wheel differential gear mechanism is used. A front wheel differential pedal mechanism capable of switching to a differential state, and a front and rear wheel differential pedal mechanism capable of simultaneously switching both a front differential gear mechanism and a rear differential gear mechanism to a differential condition are configured separately. The purpose of this mechanism is to provide a deflock device for a riding agricultural machine, which is configured such that the front and rear wheel differential pedal mechanisms are not operated due to the play mechanism when the front wheel differential pedal mechanism operates the differential lock. The configuration will be explained based on the illustrated embodiment. The front wheel drive unit of the illustrated riding rice transplanter has a transmission case 2 as shown in FIG. Differential side gears 5 and 6 are fitted to the left and right front wheel drive shafts 3 and 4, respectively, which are rotatably supported at the front of the front wheel.
Also, the ring gear 8 is rotatably fitted into the differential side gear 6 and the transmission case 2, respectively, and the front wheel differential case 7 and the ring gear 8 are fixed to each other with bolts 9, and the bevel gears 10, 10 are connected to the differential side gear 5. , 6 to form the front wheel differential gear mechanism 11, and the clutch pawl 12a of the front wheel differential clutch 12, which is fitted into the spline boss 4a of the front wheel drive shaft 4 so as to be movable only in the axial direction, is moved against the return spring 13 to form the front wheel differential gear mechanism 11. Clutch pawl 8a provided at 8
When engaged with the front wheel differential case 7, the left and right front wheel drive shafts 3, 4 are integrated into the front wheel differential lock mechanism 14. 16 is engaged with the shifter groove 12b of the front wheel differential clutch 12, and the front wheel differential clutch 12 is engaged and disengaged by rotating the differential arm 18 fixed to the rotating shaft 15. It consists of
又、このミツシヨンケース２の後部へ回転自在
に軸支した後輪駆動軸１９，２０には、デフサイ
ドギヤ２１，２２を嵌着し、後輪デフケース２３
はデフサイドギヤ２１とミツシヨンケース２へ、
リングギヤ２４はデフサイドギヤ２２とミツシヨ
ンケース２へ夫々、遊嵌し、後輪デフケース２３
とリングギヤ２４をボルト２５にて固定し、ベベ
ルギヤ２６，２６をデフサイドギヤ２１，２２に
噛合せて後輪デフギヤ機構２７を構成し、回動軸
２８と１体に回動できるように設けたデフロツク
シフタ２９のシフタコマ３０を、後輪駆動軸２０
のスプラインボス２０ａへ軸方向にのみ移動自在
に嵌入した後輪デフロツククラツチ３１のシフタ
溝３１ａに係合し、回動軸２８に固定したデフロ
ツクアーム３２を回動操作してこの前輪デフロツ
ククラツチ３１のクラツチ爪３１ｂを戻しばね３
３に抗してリングギヤ２４に設けられているクラ
ツチ爪２４ａに係合させれば、後輪デフケース２
３を介して左右の後輪駆動軸１９，２０が１体と
なる後輪デフロツク機構３４に構成している。 In addition, differential side gears 21 and 22 are fitted to the rear wheel drive shafts 19 and 20 rotatably supported at the rear of the transmission case 2, and the rear wheel differential case 23
to differential side gear 21 and transmission case 2,
The ring gear 24 loosely fits into the differential side gear 22 and the transmission case 2, respectively, and the rear wheel differential case 23.
and a ring gear 24 are fixed with bolts 25, bevel gears 26 and 26 are meshed with differential side gears 21 and 22 to constitute a rear wheel differential gear mechanism 27, and a differential shifter is provided so as to be able to rotate as a unit with a rotation shaft 28. 29's shift comma 30, the rear wheel drive shaft 20
The front wheel differential lock is engaged with the shifter groove 31a of the rear wheel differential clutch 31, which is fitted into the spline boss 20a of the rear wheel so as to be movable only in the axial direction. Return the clutch pawl 31b of the clutch 31 to the spring 3
3, the rear wheel differential case 2 is engaged with the clutch pawl 24a provided on the ring gear 24.
3, the left and right rear wheel drive shafts 19, 20 are integrated into a rear wheel differential lock mechanism 34.
そして、ミツシヨンケース２には、ステーパイ
プ３５にて互に連結した左右の駆動チエンケース
３６，３６の前部を取付け、駆動チエンケース３
６，３６の後部に軸支した後車輪３７，３７を駆
動チエン機構３８，３８を介して後輪駆動軸１
９，２０によつて夫々、駆動できるように構成
し、リングギヤ８，２４に共に噛合う駆動ギヤ３
９は、エンジン４０の回転動力をテンシヨンクラ
ツチ機構４１を介して駆動される変速ギヤ機構４
２によつて駆動するように構成している。 Then, the front parts of left and right drive chain cases 36, 36 connected to each other by a stay pipe 35 are attached to the transmission case 2, and the drive chain case 3
The rear wheels 37, 37 which are pivotally supported at the rear of the wheels 6, 36 are connected to the rear wheel drive shaft 1 via drive chain mechanisms 38, 38.
9 and 20, respectively, and meshing with the ring gears 8 and 24.
Reference numeral 9 denotes a transmission gear mechanism 4 driven by the rotational power of the engine 40 via a tension clutch mechanism 41.
2.
そしてこの発明においては、ステツプ４３の下
方に設けた軸受４４，４４へペダル軸４５を回動
自在に軸支して、ステツプ４３の切欠４３ａから
上方へペダル部４６ａを突出せしめた前輪デフロ
ツクペダル４６の回動基部をこのペダル軸４５に
固定し、この回動軸４５へ回動基部４７ａを回動
のみ自在に嵌入した前後輪デフロツクペダル４７
のペダル部４７ｂは、ステツプ４３の他の切欠４
３ｂから上方へ突出させ、例えばミツシヨンケー
ス２にブラケツト４８を、又、前輪デフロツクペ
ダル４６のペダルアーム部４６ｂにブラケツト４
９を夫々固定して、これらのブラケツト４８，４
９に可撓管５０の両端のねじ部５０ａ，５０ｂを
ナツト５１…にて取付けて、この可撓管５０に引
通ししたワイヤ５２の前端を前輪デフロツク機構
１４のデフロツクアーム１８に係着すると共に、
後端は前後輪デフロツクペダル４７のペダルアー
ム部４７ｃにピン５３を用いるなどして係着し、
後輪デフロツク機構３４のデフロツクアーム３２
と前後輪デフロツクペダル４７のペダルアーム部
４７ｃとをロツド５４にて連結して、常態におい
ては戻しばね１３，３３にてワイヤ５２とロツド
５４が第３図の左方へ前後輪デフロツクペダル４
７を引張ることになるため、ステツプ４３の切欠
４３ｂの前縁４３ｃにペダルアーム部４７ｃが当
接し、又、このワイヤ５２の緊張のために可撓管
５０も大略直線状に緊張するので、前輪デフロツ
クペダル４６のペダルアーム部４６ｂは切欠４３
ａの後縁４３ｄに当接することになつて、第３図
のように双方のデフロツクペダルは側面視がＶ字
状の位置を保つように設け、前輪デフクラツチペ
ダル４６を踏込めば、ペダルアーム部４６ｂに係
着した可撓管５０の後部が可撓管５０の前端に向
つて移動するので、可撓管５０は彎曲状になり、
このため、挿通されているワイヤ５２の前部が後
輪デフロツクペダル４６の方へ引き寄せられてデ
フロツクアーム１８はクラツチ爪１２ａを８ａに
係合させるように回動して前輪デフギヤ機構１１
のみがデフロツクされる前輪デフロツクペダル機
構５５に構成し、又、前後輪デフロツクペダル４
７を踏込めば、ワイヤ５２及びロツド５４が第３
図の右方へ引かれるので、デフロツクアーム１８
はクラツチ爪１２ａを８ａに係合し、又、デフロ
ツクアーム３２はクラツチ爪３１ｂを２４ａに係
合して前輪デフギヤ機構１１と後輪デフギヤ機構
２７が共にデフロツク状態となる前後輪デフロツ
クペダル機構５６に構成している。 In this invention, the front wheel differential pedal has a pedal shaft 45 rotatably supported on bearings 44, 44 provided below the step 43, and a pedal portion 46a protrudes upward from the notch 43a of the step 43. A front and rear wheel differential lock pedal 47 has a rotation base 46 fixed to this pedal shaft 45, and a rotation base 47a fitted into this rotation shaft 45 so as to freely rotate only.
The pedal part 47b is connected to the other notch 4 of the step 43.
For example, a bracket 48 is attached to the transmission case 2, and a bracket 48 is attached to the pedal arm portion 46b of the front wheel differential lock pedal 46.
9 are fixed respectively, and these brackets 48, 4 are fixed.
Attach the threaded portions 50a, 50b at both ends of the flexible tube 50 to the flexible tube 50 using nuts 51, and then lock the front end of the wire 52 passed through the flexible tube 50 to the differential arm 18 of the front wheel differential lock mechanism 14. With,
The rear end is attached to the pedal arm portion 47c of the front and rear wheel differential lock pedal 47 using a pin 53, etc.
Differential lock arm 32 of rear wheel differential lock mechanism 34
and the pedal arm portion 47c of the front and rear wheel differential lock pedals 47 are connected by a rod 54, and under normal conditions, the return springs 13 and 33 cause the wire 52 and the rod 54 to move the front and rear wheel differential lock pedals to the left in FIG. 4
7, the pedal arm portion 47c comes into contact with the front edge 43c of the notch 43b of the step 43, and the flexible tube 50 is also tensed in a substantially straight line due to the tension of the wire 52, so that the front wheel The pedal arm portion 46b of the differential lock pedal 46 has a notch 43.
Both differential clutch pedals are provided so as to maintain a V-shaped position when viewed from the side as shown in FIG. 3, and when the front wheel differential clutch pedal 46 is depressed, the pedals Since the rear part of the flexible tube 50 that is attached to the arm portion 46b moves toward the front end of the flexible tube 50, the flexible tube 50 becomes curved,
Therefore, the front part of the wire 52 inserted therethrough is drawn toward the rear wheel differential lock pedal 46, and the differential arm 18 is rotated to engage the clutch pawl 12a with the front wheel differential gear mechanism 11.
The front wheel differential pedal mechanism 55 is configured such that only the front wheel differential lock pedal 4 is deflocked.
7, the wire 52 and rod 54 will move to the third position.
Since it is pulled to the right in the figure, the differential arm 18
engages the clutch pawl 12a with 8a, and the differential arm 32 engages the clutch pawl 31b with 24a, so that both the front wheel differential gear mechanism 11 and the rear wheel differential gear mechanism 27 are in the differential lock state. It is composed of 56 parts.
なお、第２図において符号５７，５７は左右の
後輪駆動軸１９，２０のブレーキ機構であり、
又、第１図において符号５８はリンク機構５９の
油圧ピストンにて上下位置調節自在に支架されて
いる植付ミツシヨンケースであり、フロート６０
はリンク６１を介してばねにて下方へ押下げられ
ており、符号６２は苗タンク、符号６３は植付部
である。 In addition, in FIG. 2, numerals 57 and 57 are brake mechanisms for the left and right rear wheel drive shafts 19 and 20,
Further, in FIG. 1, reference numeral 58 is a planting mission case supported by a hydraulic piston of a link mechanism 59 so as to be vertically adjustable.
is pushed down by a spring via a link 61, numeral 62 is a seedling tank, and numeral 63 is a planting part.
この発明に係るデフロツク装置は上述のように
構成しているので、例えば植付作業の場合、通常
の状態の圃場においては前輪デフロツクペダル４
６及び後輪デフロツクペダル４７は共に踏込みし
ないので、左右の前車輪１，１と後車輪３７，３
７は共に夫々、独立して回転駆動されることにな
る。そして、例えば耕盤が深くなつたなどのため
に車輪がスリツプが始まつたようなときは、前後
輪デフロツクペダル４７を踏込むことにより、ワ
イヤ５２とロツド５４が共に引かれるので、前輪
デフギヤ機構１１と後輪デフギヤ機構２７は共に
デフロツク状態に切替えされるので、例えば左右
片側のみの車輪が空転し易い状態となつても、他
側の車輪も同一回転になるので、スリツプが良く
防止されることになる。 Since the differential lock device according to the present invention is constructed as described above, in the case of planting work, for example, in a field under normal conditions, the front wheel differential pedal
6 and rear wheel differential lock pedal 47 are not depressed, the left and right front wheels 1, 1 and rear wheels 37, 3 are not depressed.
7 are each rotated independently. When the wheels start to slip, for example because the plowing platform is deep, depressing the front and rear wheel differential lock pedals 47 pulls both the wires 52 and the rods 54, so that the front wheel differential gears are Since both the mechanism 11 and the rear wheel differential gear mechanism 27 are switched to the differential lock state, even if the wheels on only one side of the left or right side tend to spin, the wheels on the other side will also rotate at the same time, so slips can be effectively prevented. That will happen.
そして、畦際附近における機体の回向の際に前
輪デフロツクペダル４６を踏込めば、上述のよう
にワイヤ５２が引かれて前輪デフギヤ機構１１の
みがデフロツク状態となるので、畦際の凹凸の圃
場に乗り上げていてスリツプし易い前車輪１，１
のみが左右１体に回転駆動されるので前車輪１，
１のスリツプを防止され、相互に独立して回転駆
動されている後車輪３７，３７によつて機体の回
向動作が充分に助けられることになるのである。 When the front wheel differential gear mechanism 11 is depressed as described above when the front wheel differential gear mechanism 11 is depressed when the aircraft is turned around near the ridge, the wire 52 is pulled as described above and only the front wheel differential gear mechanism 11 is in the differential state. Front wheels 1, 1 that are prone to slipping when riding on the field
Since only the left and right wheels are rotationally driven, the front wheels 1,
The rear wheels 37, 37, which are rotated independently of each other, are prevented from slipping, and the turning movement of the aircraft body is sufficiently assisted.
そして、このように乗用農機が走行している附
近の圃場の状況に応じて前後車輪を、或いは又、
前車輪のみをデフロツクして駆動するための切替
操作は、前後輪デフロツクペダル又は前輪デフロ
ツクペダルを夫々、切替えて踏込むことによつて
行うことができるので、極めて容易となつたもの
であり、しかも、これらの操作はいずれも運転操
作員の片足のみにて行うことができるため、同時
にブレーキペダルの踏込操作の如き他のペダル操
作も行うことができる利点も備えるものである。 In this way, the front and rear wheels are changed depending on the situation of the nearby field where the riding agricultural machine is running, or
The switching operation for driving only the front wheels with deflock can be performed by switching and depressing the front and rear wheel differential pedals or the front wheel differential pedal, respectively, making it extremely easy. Furthermore, since all of these operations can be performed with only one foot of the operator, there is also the advantage that other pedal operations such as depressing the brake pedal can be performed at the same time.
第１図はこの発明の１実施例を適用した乗用農
機の側面図、第２図は同上発明の主要部を示すた
めのミツシヨンケースの横断平面図、第３図は同
上発明におけるデフロツクペダル附近の１部縦断
側面図である。
符号説明、１……前車輪、２……ミツシヨンケ
ース、３，４……前輪駆動軸、４ａ，２０ａ……
スプラインボス、５，６，２１，２２……デフサ
イドギヤ、７……前輪デフケース、８，２４……
リングギヤ、８ａ，１２ａ，２４ａ，３１ｂ……
クラツチ爪、９，２５……ボルト、１０，２６…
…ベベルギヤ、１１……前輪デフギヤ機構、１２
……前輪デフロツククラツチ、１２ｂ，３１ａ…
…シフタ溝、１３，３３……戻しばね、１５，２
８……回動軸、１６，２９……デフロツクシフ
タ、１７，３０……シフタコマ、１８，３２……
デフロツクアーム、１９，２０……後輪駆動軸、
２３……後輪デフケース、２７……後輪デフギヤ
機構、３１……後輪デフロツククラツチ、３４…
…後輪デフロツク機構、３５……ステーパイプ、
３６……駆動チエンケース、３７……後車輪、３
８……駆動チエン機構、３９……駆動ギヤ、４０
……エンジン、４１……テンシヨンクラツチ機
構、４２……変速ギヤ機構、４３……ステツプ、
４３ａ，４３ｂ……切欠、４３ｃ……前縁、４３
ｄ……後縁、４４……軸受、４５……ペダル軸、
４６……前輪デフロツクペダル、４６ａ，４７ｂ
……ペダル部、４６ｂ，４７ｃ……ペダルアーム
部、４７……後輪デフロツクペダル、４７ａ……
回動基部、４８，４９……ブラケツト、５０……
可撓管、５０ａ，５０ｂ……ねじ部、５１……ナ
ツト、５２……ワイヤ、５３……ピン、５４……
ロツド、５５……前輪デフロツクペダル機構、５
６……後輪デフロツクペダル機構、５７……ブレ
ーキ機構、５８……植付ミツシヨンケース、５９
……リンク機構、６０……フロート、６１……リ
ンク、６２……苗タンク、６３……植付部。
Fig. 1 is a side view of a riding agricultural machine to which an embodiment of the present invention is applied, Fig. 2 is a cross-sectional plan view of a transmission case showing the main parts of the invention, and Fig. 3 is a differential pedal according to the invention. It is a longitudinal side view of a part of the vicinity. Description of symbols, 1...Front wheel, 2...Mission case, 3, 4...Front wheel drive shaft, 4a, 20a...
Spline boss, 5, 6, 21, 22... Differential side gear, 7... Front wheel differential case, 8, 24...
Ring gear, 8a, 12a, 24a, 31b...
Clutch pawl, 9, 25... Bolt, 10, 26...
...Bevel gear, 11...Front wheel differential gear mechanism, 12
...Front wheel differential clutch, 12b, 31a...
...Shifter groove, 13,33...Return spring, 15,2
8... Rotating shaft, 16, 29... Defrot shifter, 17, 30... Shifter comma, 18, 32...
Diff lock arm, 19, 20...Rear wheel drive shaft,
23... Rear wheel differential case, 27... Rear wheel differential gear mechanism, 31... Rear wheel differential clutch, 34...
...Rear wheel differential lock mechanism, 35...Stay pipe,
36... Drive chain case, 37... Rear wheel, 3
8... Drive chain mechanism, 39... Drive gear, 40
...Engine, 41...Tension clutch mechanism, 42...Transmission gear mechanism, 43...Step,
43a, 43b...notch, 43c...front edge, 43
d... Trailing edge, 44... Bearing, 45... Pedal shaft,
46...Front wheel differential lock pedal, 46a, 47b
...Pedal part, 46b, 47c...Pedal arm part, 47...Rear wheel differential lock pedal, 47a...
Rotating base, 48, 49... Bracket, 50...
Flexible tube, 50a, 50b...Threaded portion, 51...Nut, 52...Wire, 53...Pin, 54...
Rod, 55...Front wheel differential lock pedal mechanism, 5
6... Rear wheel differential lock pedal mechanism, 57... Brake mechanism, 58... Planting transmission case, 59
... Link mechanism, 60 ... Float, 61 ... Link, 62 ... Seedling tank, 63 ... Planting section.
Claims (1)
と後輪デフギヤ機構を夫々設け、この前輪デフギ
ヤ機構のみをデフロツク状態に切替できるように
した前輪デフロツクペダル機構と、前輪デフギヤ
機構及び後輪デフギヤ機構の双方を同時にデフロ
ツク状態に切替できる前後輪デフロツクペダル機
構とを各別に構成し、この両デフロツクペダル機
構は、前輪デフロツクペダル機構によるデフロツ
ク操作時には遊び機構によつて前後輪デフロツク
ペダル機構側が作動されないように構成してなる
乗用農機におけるデフロツク装置。1. A front wheel differential gear mechanism and a rear wheel differential gear mechanism that drive the front and rear wheels, respectively, are provided, and a front wheel differential gear mechanism that can switch only the front wheel differential gear mechanism to a differential state, and a front wheel differential gear mechanism and a rear wheel differential gear mechanism. A front and rear wheel differential pedal mechanism that can switch both sides to the defrot state at the same time is configured separately, and when the front wheel differential pedal mechanism is operated to defrot, the front and rear wheel differential pedal mechanisms side are controlled by a play mechanism. A deflock device for a riding agricultural machine configured so as not to be activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8353580A JPS5711120A (en) | 1980-06-20 | 1980-06-20 | Differential lock device in agricultural machine for riding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8353580A JPS5711120A (en) | 1980-06-20 | 1980-06-20 | Differential lock device in agricultural machine for riding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5711120A JPS5711120A (en) | 1982-01-20 |
| JPS6247744B2 true JPS6247744B2 (en) | 1987-10-09 |
Family
ID=13805187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8353580A Granted JPS5711120A (en) | 1980-06-20 | 1980-06-20 | Differential lock device in agricultural machine for riding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5711120A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6415442A (en) * | 1987-07-07 | 1989-01-19 | Hitachi Ltd | Air flow adjusting apparatus for multiple throttle mechanism of internal combustion engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4793523B2 (en) * | 2001-03-06 | 2011-10-12 | 株式会社 神崎高級工機製作所 | Work vehicle transmission |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538931A (en) * | 1976-07-13 | 1978-01-26 | Kubota Ltd | Operating mechanism of deaf lock device |
-
1980
- 1980-06-20 JP JP8353580A patent/JPS5711120A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538931A (en) * | 1976-07-13 | 1978-01-26 | Kubota Ltd | Operating mechanism of deaf lock device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6415442A (en) * | 1987-07-07 | 1989-01-19 | Hitachi Ltd | Air flow adjusting apparatus for multiple throttle mechanism of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5711120A (en) | 1982-01-20 |
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