JPH07246002A - Lower link attachment of tractor - Google Patents
Lower link attachment of tractorInfo
- Publication number
- JPH07246002A JPH07246002A JP3733594A JP3733594A JPH07246002A JP H07246002 A JPH07246002 A JP H07246002A JP 3733594 A JP3733594 A JP 3733594A JP 3733594 A JP3733594 A JP 3733594A JP H07246002 A JPH07246002 A JP H07246002A
- Authority
- JP
- Japan
- Prior art keywords
- link
- lower link
- case
- tractor
- shaft
- 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.)
- Granted
Links
Landscapes
- Agricultural Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、トラクタのロアリン
ク取付装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower link mounting device for a tractor.
【０００２】[0002]
【従来の技術、および発明が解決しようとする課題】ト
ラクタでは、作業装置を連結するために、トップリンク
と左右一対のロアリンクとによる三点リンク機構を用い
ることが多く、車高や作業機の高さ等によって、このロ
アリンクのトラクタ車体に対する連結高さを変更するこ
とにより、作業の対地角度や動力取出連動軸の折れ角等
が有効作用限界域内にあるように設定されることが理想
である。、体形化となり易い。2. Description of the Related Art In a tractor, a three-point link mechanism composed of a top link and a pair of left and right lower links is often used to connect a working device to a vehicle height or a working machine. It is ideal to change the connection height of the lower link to the tractor body according to the height of the vehicle, so that the ground angle of work and the bending angle of the power takeoff interlocking shaft are set within the effective operating range. Is. , It tends to become a figure.
【０００３】[0003]
【課題を解決するための手段】この発明は、ミッション
ケ−ス１左右両側部において車輪２を軸装すべく設けら
れるホイルケ−ス３内側面に沿って、作業機連結用のロ
アリンク４を連結する連結位置を上下に位置変更可能に
切替回動のリンクプレ−ト５を設けてなるトラクタのロ
アリンク取付装置の構成とする。SUMMARY OF THE INVENTION According to the present invention, a lower link 4 for connecting a working machine is provided along an inner side surface of a wheel case 3 provided for axially mounting wheels 2 on both left and right sides of a mission case 1. A lower link attachment device for a tractor is provided with a link plate 5 for switching rotation so that the connection position for connection can be changed up and down.
【０００４】[0004]
【作用、および発明の効果】車高に対する作業機の作業
高さが高過ぎたり低過ぎるときは、ロアリンク４の車体
に対する連結位置を上下に変更する。このロアリンク４
の連結位置を変更するには、このロアリンク４を連結し
たリンクプレ−ト５を、ホイルケ−ス３に対して上下に
切替回動する。高過ぎるときはリンクプレ−ト５を回動
してロアリンク４の連結位置を下位置に設定し、低く過
ぎるときは逆に上位置に設定する。When the working height of the working machine with respect to the vehicle height is too high or too low, the connecting position of the lower link 4 with respect to the vehicle body is changed up and down. This lower link 4
In order to change the connecting position, the link plate 5 to which the lower link 4 is connected is vertically rotated with respect to the wheel case 3. When it is too high, the link plate 5 is rotated to set the connecting position of the lower link 4 to the lower position, and when it is too low, it is set to the upper position.
【０００５】このようにロアリンク４の上下位置を変え
るためには、リンクプレ−ト５をホイルケ−ス３に沿っ
て上下に切替回動することによって、簡単な操作で行わ
れ、構成が簡単であり、ロアリンク４の連結部であるリ
ンクプレ−ト５がホイルケ−ス３の内側面に沿って回動
されるために、作業の邪魔になり難い。又、作業機は低
床用、高床用の両トラクタに共用できる。In order to change the vertical position of the lower link 4 as described above, the link plate 5 is vertically switched and rotated along the wheel case 3 by a simple operation, and the structure is simple. Since the link plate 5 which is the connecting portion of the lower link 4 is rotated along the inner side surface of the wheel case 3, it is difficult to disturb the work. In addition, the working machine can be used for both low floor and high floor tractors.
【０００６】[0006]
【実施例】トラクタ車体６は、前部のエンジンＥから後
部に亘ってクラッチハウジング７、フロントミッション
ケ−ス１Ｆとリヤミッションケ−ス１Ｒとからなるミッ
ションケ−ス１等を一体的に連結し、エンジンＥ前部の
アクスルブラケット８には、フロントアクスルハウジン
グ９を支持させて、このフロントアクスルハウジング９
の左右両端部に操向ケ−ス１０を操向自在に設け、この
操向ケ−ス１０の外側に前車輪１１を軸装している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tractor vehicle body 6 is integrally connected with a clutch housing 7, a transmission case 1 including a front transmission case 1F and a rear transmission case 1R from a front engine E to a rear portion. The front axle housing 9 is supported by the axle bracket 8 at the front of the engine E.
Steering cases 10 are rotatably provided at both left and right ends of the steering wheel, and front wheels 11 are mounted on the outside of the steering case 10.
【０００７】リヤミッションケ−ス１Ｒの後部で左右両
側方にはホイルケ−ス３を有し、このホイルケ−ス３か
ら外側に張り出すリヤアクスルハウジング１２に操向自
在の操向ケ−ス１３を設ける。該ホイルケ−ス３内には
リヤミッションケ−ス１Ｒ内のデフ装置のデフ軸から連
動されるギヤ機構が内装されて、リヤアクスルハウジン
グ１２内の伝動軸、及び操向ケ−ス１３内の伝動軸やギ
ヤ等を経て後車輪２を伝動する構成としている。又、こ
のホイルケ−ス３の内側面は上下方向に沿う平面に形成
されて、横方向のプレ−ト軸１４の回りに回動自在のリ
ンクプレ−ト５が取付けられる。The rear mission case 1R has a rear wheel case 3 on both left and right sides, and a rear axle housing 12 projecting outward from the wheel case 3 is provided with a steerable steering case 13. Set up. A gear mechanism interlocked with the differential shaft of the differential device in the rear transmission case 1R is installed in the wheel case 3, and a transmission shaft in the rear axle housing 12 and a transmission in the steering case 13 are provided. The rear wheel 2 is configured to be transmitted via a shaft, a gear and the like. Further, the inner side surface of the wheel case 3 is formed in a plane extending in the vertical direction, and a link plate 5 which is rotatable around a horizontal plate shaft 14 is attached.
【０００８】エンジンＥの駆動によってクラッチハウジ
ング及びミッションケ−ス１等の伝動機構を経て、前車
輪１１及び後車輪２が駆動される。１５は前車輪伝動軸
で、ミッションケ−ス１内部からフロントアクスルハウ
ジング９のデフ装置へ伝動する構成である。１６は操縦
席、１７はステアリングハンドルで前後の車輪１１，２
を共に操向連動できる。１８は変速レバ−、１９はリフ
トレバ−、２０はリヤミッションケ−ス１Ｒ上に設けら
れた油圧ケ−スで、リフトア−ム２１を有する。When the engine E is driven, the front wheels 11 and the rear wheels 2 are driven via the clutch housing and the transmission mechanism such as the transmission case 1. Reference numeral 15 is a front wheel transmission shaft, which is configured to be transmitted from the inside of the transmission case 1 to the differential device of the front axle housing 9. Reference numeral 16 is a cockpit, and 17 is a steering wheel.
The steering can be linked together. Reference numeral 18 is a shift lever, 19 is a lift lever, and 20 is a hydraulic case provided on the rear mission case 1R, which has a lift arm 21.
【０００９】前記左右のリンクプレ−ト５は、プレ−ト
軸１４部の上下に、ロアリンク４の前端部を連結するリ
ンクピン２２と、ホイルケ−ス３の上下に形成されたピ
ン孔２３に対して嵌合して位置決めされる係合ピン２４
を設け、このリンクプレ−ト５を回動して、係合ピン２
４のばね２５によるピン孔２３方向への弾発によって、
一定位置で自動的に係止することができる。The left and right link plates 5 have link pins 22 connecting the front ends of the lower links 4 above and below the plate shaft 14 and pin holes 23 formed above and below the wheel case 3. Engagement pin 24 that is fitted and positioned with respect to
Is provided, and the link plate 5 is rotated to engage the engaging pin 2
By the spring 25 of 4 to repel the pin hole 23,
It can be locked automatically at a fixed position.
【００１０】なお、このような係合ピン２４に代えて、
リンクピン２２を同様の構成とし、このリンクピン２２
のピン孔２３に対する係合により位置決めできる構成と
するもよい。リヤミッションケ−ス１Ｒの後端には、上
下に一定の間隔をおいて上・下動力取出軸２６，２７が
設けられ、作業機であるロ−タリ耕転装置２８の入力軸
２９との間を自在継手や伸縮軸等を有する伝動軸３０
が、いずれの軸２６，２７にも選択的に連結できる。In place of such an engagement pin 24,
The link pin 22 has the same structure, and the link pin 22
The pin hole 23 may be engaged with the pin hole 23 for positioning. At the rear end of the rear mission case 1R, upper and lower power take-off shafts 26, 27 are provided at a certain interval in the vertical direction and are connected to an input shaft 29 of a rotary tiller 28 which is a working machine. Transmission shaft 30 having a universal joint and expansion shaft
Can be selectively coupled to either shaft 26, 27.
【００１１】又、このリヤミッションケ−ス１Ｒの上部
にリンクブラケット３１，３７を有し、ロ−タリ耕転装
置２８の連結マスト３２との間をトップリンク３３で連
結することができる。このリンクブラケット３１，３７
のトップリンク連結孔３４は上下数段に設けられる。３
５はゲ−ジホイルである。左右のリフトア−ム２１とロ
アリンク４との間をリフトロッド３６で連結して、この
リフトア−ム２１の上下動によってロアリンク４及びト
ップリンク３３を上下動させて、ロ−タリ耕転装置２８
を昇降する。車高や耕転装置の高さ等によって、左右の
リンクプレ−ト５を上下に切替回動して、ロアリンク４
の連結高さを切替える。又、伝動軸３０の動力取出軸２
６，２７へ連結位置も、この伝動軸３０の折れ角が許容
域内になるように選定する。又、トップリンク３３のリ
ンクブラケット３１，３７に対する連結孔３４の位置も
選択することができる。Further, link brackets 31 and 37 are provided on the upper portion of the rear mission case 1R, and a top link 33 can be connected to the connection mast 32 of the rotary tiller 28. This link bracket 31, 37
The top link connecting holes 34 are provided in several stages vertically. Three
5 is a gauge foil. The left and right lift arms 21 and the lower link 4 are connected by a lift rod 36, and the vertical movement of the lift arm 21 causes the lower link 4 and the top link 33 to move up and down, thereby providing a rotary tiller. 28
Move up and down. The lower link 4 is rotated by switching the left and right link plates 5 up and down depending on the vehicle height and the height of the tiller.
Switch the connection height of. Also, the power take-off shaft 2 of the transmission shaft 30
The connecting positions of 6 and 27 are also selected so that the bending angle of the transmission shaft 30 is within the allowable range. Further, the position of the connecting hole 34 with respect to the link brackets 31 and 37 of the top link 33 can also be selected.
【００１２】なお、前記ロアリンク４を連結するリンク
プレ−ト５の切替回動機構は、車体の後部に設けたが、
車体の前部に設ける構成とするもよい。The switching and rotating mechanism of the link plate 5 for connecting the lower link 4 is provided at the rear portion of the vehicle body.
It may be configured to be provided in the front portion of the vehicle body.
【図１】側面図。FIG. 1 is a side view.
【図２】その一部の背面図。FIG. 2 is a rear view of a part thereof.
【図３】その一部の拡大背断面図。FIG. 3 is an enlarged back cross-sectional view of a part thereof.
【図４】斜視図。FIG. 4 is a perspective view.
【図５】全体の側面図。FIG. 5 is a side view of the whole.
１ ミッションケ−ス ２ 車輪 ３ ホイルケ−ス ４ ロアリンク ５ リンクプレ−ト 1 mission case 2 wheels 3 wheel case 4 lower link 5 link plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 永井 真人 愛媛県伊予郡砥部町八倉１番地 井関農機 株式会社技術部内 (72)発明者 黒岩 二三男 愛媛県伊予郡砥部町八倉１番地 井関農機 株式会社技術部内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masato Nagai 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefectural Engineering Department, Iseki Agricultural Machinery Co., Ltd. Department
Claims (1)
車輪２を軸装すべく設けられるホイルケ−ス３内側面に
沿って、作業機連結用のロアリンク４を連結する連結位
置を上下に位置変更可能に切替回動のリンクプレ−ト５
を設けてなるトラクタのロアリンク取付装置。1. A connecting position for connecting a lower link 4 for connecting a working machine is vertically arranged along an inner side surface of a wheel case 3 provided for axially mounting wheels 2 on both left and right sides of a mission case 1. Link plate 5 with changeable rotation
Lower link mounting device for tractors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03733594A JP3593711B2 (en) | 1994-03-08 | 1994-03-08 | Tractor lower link mounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03733594A JP3593711B2 (en) | 1994-03-08 | 1994-03-08 | Tractor lower link mounting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07246002A true JPH07246002A (en) | 1995-09-26 |
| JP3593711B2 JP3593711B2 (en) | 2004-11-24 |
Family
ID=12494754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03733594A Expired - Fee Related JP3593711B2 (en) | 1994-03-08 | 1994-03-08 | Tractor lower link mounting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3593711B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013031406A (en) * | 2011-08-02 | 2013-02-14 | Yanmar Co Ltd | Working vehicle |
-
1994
- 1994-03-08 JP JP03733594A patent/JP3593711B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013031406A (en) * | 2011-08-02 | 2013-02-14 | Yanmar Co Ltd | Working vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3593711B2 (en) | 2004-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
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Effective date: 20040106 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
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| A521 | Written amendment |
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| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
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|
| A61 | First payment of annual fees (during grant procedure) |
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| R150 | Certificate of patent (=grant) or registration of utility model |
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| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 3 Free format text: PAYMENT UNTIL: 20070910 |
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