JPS593Y2 - Tractor work equipment attachment device - Google Patents
Tractor work equipment attachment deviceInfo
- Publication number
- JPS593Y2 JPS593Y2 JP15267576U JP15267576U JPS593Y2 JP S593 Y2 JPS593 Y2 JP S593Y2 JP 15267576 U JP15267576 U JP 15267576U JP 15267576 U JP15267576 U JP 15267576U JP S593 Y2 JPS593 Y2 JP S593Y2
- Authority
- JP
- Japan
- Prior art keywords
- tractor
- work equipment
- center
- lift
- tractor body
- 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
- Agricultural Machines (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Description
【考案の詳細な説明】
本考案はＩ・ラクタの作業機装着装置に関し、左右車輪
間にトラクタ機体を偏心配置したトラクタにおいて、ト
ラクタ機体後方に装着されるロータノ装置等の作業機を
左右後輪間の略中央位置として、作業機装着状態での重
量バランスを良好にすると共に、該作業機を昇降させる
際の荷重を一対のり７１へアームにより分担支持するよ
うにして、ノフトアームの強度の低下を防止することを
目的とする。[Detailed description of the invention] The present invention relates to a work equipment mounting device for an I-tractor, and in a tractor in which the tractor body is eccentrically arranged between the left and right wheels, the work equipment such as a rotano device attached to the rear of the tractor body is attached to the left and right rear wheels. The noft arm is positioned approximately in the center between the noft arms to improve the weight balance when the working machine is attached, and the load when raising and lowering the working machine is shared and supported by the arm to the pair of glues 71, thereby preventing a decrease in the strength of the noft arm. The purpose is to prevent.
従来から種々のトラクタが提供されているが、従来のト
ラクタは何れも左右車輪間の中央位置にトラクタ機体を
配置し、その中央に操向バンドル及び運転席等を設けて
いるため、ボンネット等により前方の視界が大きく制限
され、従って作物の畦間を走行しながら除草或いは中耕
する管理作業時には非常に不便であった。Various types of tractors have been provided in the past, but all conventional tractors have the tractor body located in the center between the left and right wheels, and the steering bundle, driver's seat, etc. are located in the center. The forward visibility is greatly restricted, which is very inconvenient when carrying out management work such as weeding or tilling while driving between crop rows.
そこで訃うフタ機体を左右車輪間に偏心配置し、該トラ
クタ機体の反対側に操向バンドル、運転席、ステップ等
を配置して、前方の視界を良好にした管理作業用のトラ
クタが既に考えられている。Therefore, a tractor for management work is already being considered in which the lid body is placed eccentrically between the left and right wheels, and the steering bundle, driver's seat, steps, etc. are placed on the opposite side of the tractor body to improve forward visibility. It is being
しかし、この種のトラクタでは、トラクタ機体の後方に
三点リンク機構等を介して作業機を装着した場合、トラ
クタ機体と作業機との中心が一致するので、トラクタ全
体の重心位置がトラクタ機体側に大きく偏位し、左右の
重量バランスがくずれて湿田等での作業性が著しく低下
する欠点があった。However, with this type of tractor, when the work equipment is attached to the rear of the tractor body via a three-point linkage mechanism, the centers of the tractor body and work equipment coincide, so the center of gravity of the entire tractor is on the side of the tractor body. This has the disadvantage that the weight is significantly deviated, causing the left and right weight balance to be disrupted, resulting in a significant decrease in workability in wet fields, etc.
本考案は斯かる従来の問題点を解消したものであって、
その特徴とするところは、左右車輪間にトラクタ機体を
偏心配置したトラクタにおいて、作業機が左右後輪間の
略中央に位置すべくリンク機構を構威し、作業機昇降用
油圧装置の各リフトアームを左右後輪間の中央側に彎曲
させ、この一対のリフトアームの遊端側を連結部材によ
り相互に連結した点にある。The present invention solves these conventional problems, and
The feature is that in a tractor with an eccentric tractor body placed between the left and right wheels, a link mechanism is used to position the work equipment approximately in the center between the left and right rear wheels, and each lift of the hydraulic system for raising and lowering the work equipment The arm is bent toward the center between the left and right rear wheels, and the free end sides of the pair of lift arms are connected to each other by a connecting member.
以下、図示の実施例について本考案を詳述すると、第１
図及び第２図において、１はトラクタ機体、２はトラク
タ機体１の前部に塔載されたエンジンで、該エンジン２
の前面下部に前車軸受台３が装着され、その前車軸受台
３にバンパー４が付設されると共に、センター軸を介し
て揺動自在に前車軸５が支架される。Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.
In the figures and FIG. 2, 1 is a tractor body, 2 is an engine mounted on the front part of the tractor body 1, and the engine 2
A front wheel bearing stand 3 is attached to the front lower part of the front wheel bearing stand 3, a bumper 4 is attached to the front wheel bearing stand 3, and a front axle 5 is swingably supported via a center shaft.
前車軸５は両端に前輪６Ｌ、６Ｒを備え、該前車輪５は
トラクタ機体１が前輪６Ｌ、６Ｒ間の左側に偏心すべく
右側が長く構成される。The front axle 5 has front wheels 6L and 6R at both ends, and the right side of the front wheel 5 is longer so that the tractor body 1 is eccentric to the left between the front wheels 6L and 6R.
７は前車軸受台３に載置されたラジェータ、８はエンジ
ン２、ラジェータ７等を覆うボンネット、９は燃料タン
ク、１０は計器パネルである。7 is a radiator mounted on the front vehicle bearing stand 3; 8 is a bonnet that covers the engine 2, the radiator 7, etc.; 9 is a fuel tank; and 10 is an instrument panel.
トラクタ機体１の後部両側にはブレーキケース１１ Ｌ
、１１ Ｒを介して後車軸ケース１２ Ｌ、１２ Ｒが
装着され、その各後車軸ケース１２ Ｌ、１２ Ｒの外
端に最終減速装置を介して後輪１３ Ｌ、１３ Ｒが支
持されており、該善後車軸ケース１２ Ｌ、１２ Ｒは
１〜ラクタ機体１が後輪１３Ｌ、１３Ｒ間の左側に偏心
すべく右側が長く構成され、また該後車軸ケース１２Ｌ
、１２Ｒ上に、各後輪１３Ｌ、１３Ｒに対応してフェン
ダ−１４Ｌ、１４Ｒが取付けられる。There are brake cases 11L on both sides of the rear of the tractor body 1.
, 11R are attached to the rear axle cases 12L, 12R, and rear wheels 13L, 13R are supported at the outer ends of the respective rear axle cases 12L, 12R via a final reduction gear. , the rear axle cases 12L and 12R are configured such that the right side is long so that the rear axle case 1 is eccentric to the left side between the rear wheels 13L and 13R, and the rear axle case 12L is
, 12R, fenders 14L and 14R are attached corresponding to the respective rear wheels 13L and 13R.
１５は操向ハンドル、１６は運転席、１７はステップで
あって、これらはトラクタ機体１の偏心側とは反対側、
即ち１〜ラクタ機体１の右側に夫々配置されている。15 is a steering handle, 16 is a driver's seat, 17 is a step, and these are on the opposite side of the tractor body 1 from the eccentric side;
That is, they are arranged on the right side of the tractor body 1.
操向ハンドル１５はボンネット８の右側方に配置された
ハンドル軸１８に設けられ、そのハンドル軸１８は前車
軸受台３等に装着された操向ギヤーボックス１９により
支持され、該操向ギヤーボックス１９内のベベルギヤー
機構、タイロッド２０Ｌ、２０Ｒ及びナックルアーム２
１ Ｌ、２１ Ｒを介して各前輪６Ｌ。The steering handle 15 is provided on a handle shaft 18 disposed on the right side of the bonnet 8, and the handle shaft 18 is supported by a steering gear box 19 mounted on the front vehicle bearing stand 3, etc. Bevel gear mechanism in 19, tie rods 20L, 20R and knuckle arm 2
1 L, 21 R to each front wheel 6L.
６Ｒに操向可能に連動せしめられる。It is linked to 6R so that it can be steered.
運転席１６は後車軸ケース１２Ｒ上に設けられ、またス
テップ１７はトラクタ機体１の前後方向略中央部から後
車軸ケース１２Ｒにまたがって、該トラクタ機体１とフ
ェンダ−１４Ｒとの間に設けられる。The driver's seat 16 is provided on the rear axle case 12R, and the step 17 is provided between the tractor body 1 and the fender 14R, spanning the rear axle case 12R from approximately the center in the longitudinal direction of the tractor body 1.
２２は作業機装着用の三点リンク機構であって、第３図
にも示す如くトップリンク取付台２３に軸支された１−
ツブリンク（図示せず）と、ロアリンク取付ピン２４
Ｌ 、２４ ＲによりＩ・ラクタ機体１両側に軸支され
た一対のロアリンク２５Ｌ、２５Ｒとから成り、各ロア
リンク２５Ｌ、２５Ｒ後端のボール継手部２６Ｌ。Reference numeral 22 denotes a three-point link mechanism for attaching the work machine, and as shown in FIG.
Double link (not shown) and lower link mounting pin 24
It consists of a pair of lower links 25L and 25R that are pivotally supported on both sides of the I-Rakuta fuselage 1 by L and 24R, and a ball joint portion 26L at the rear end of each lower link 25L and 25R.
２６ Ｒが後輪１３Ｌ、１３Ｒ間の中央に対して等距離
Ａとなるように、ロアリンク２５Ｒを長くしかつ後輪１
３Ｒ側に大きく折曲て構成してあり、従って該三点リン
ク機構２２によって装着される作業機は、トラクタ機体
１に対してＢだけ右側に偏心し、かつ後輪１３ Ｌ、１
３ Ｒ間の略中夫に位置する。26. Lengthen lower link 25R and rear wheel 1 so that R is equidistant A from the center between rear wheels 13L and 13R.
3R side, and therefore, the working machine attached by the three-point linkage mechanism 22 is eccentric to the right side by B with respect to the tractor body 1, and the rear wheels 13L, 1
It is located approximately midway between 3Rs.
２７はトラクタ機体１の後部に塔載された作業機昇降用
の油圧装置で、左右一対のり７１〜アーム２８Ｌ、２８
Ｒを有し、その各リフトアーム２８Ｌ、２８Ｒは後輪１
３Ｌ、１３Ｒ間の中央側に彎曲して構成される。27 is a hydraulic system mounted on the rear of the tractor body 1 for lifting and lowering the working machine, and a pair of left and right beams 71 to arms 28L, 28
R, and each of its lift arms 28L and 28R lifts the rear wheel 1.
It is curved toward the center between 3L and 13R.
この場合、リフトアーム２８Ｒはリフトアーム２８ Ｌ
に比較して長く構成されており、油圧アーム軸２９に対
する取付部と遊端部との間の横方向の距離はＣ，Ｄ（Ｃ
＜Ｄ）であり、該リフトアーム２８Ｌ、２８Ｒは作業機
昇降時の荷重を相互に分担すべく遊端側が連結部材３０
により相互に連結される。In this case, the lift arm 28R is the lift arm 28L.
The horizontal distance between the attachment part and the free end with respect to the hydraulic arm shaft 29 is C, D (C
<D), and the free ends of the lift arms 28L and 28R are connected to the connecting member 30 in order to mutually share the load when the work equipment is raised and lowered.
are interconnected by.
連結部材３０はリフトロッド連結ピン３１ Ｌ、３１
Ｒを兼用したものであって、一対のストッパー３２Ｌ、
３２Ｒを有し、そのリフトロッド連結ピン３１Ｌ、３１
Ｒが各リフトアーム２８Ｌ、２８Ｒ遊端部のピン孔に挿
支され、該各リフトロッド連結ピン３１Ｌ、３１Ｒに、
ロアリンク２５ Ｌ、２５ Ｒと連結するリフトロッド
３３Ｌ、３３Ｒが連結される。The connecting member 30 includes lift rod connecting pins 31 L, 31
A pair of stoppers 32L,
32R, and its lift rod connecting pins 31L, 31
R is inserted and supported in the pin hole of the free end of each lift arm 28L, 28R, and each lift rod connecting pin 31L, 31R,
Lift rods 33L and 33R are connected to the lower links 25L and 25R.
なおリフトロッド３３Ｌ、３３Ｒの内、何れか一方は伸
縮調整自在に構成されている。Note that either one of the lift rods 33L and 33R is configured to be expandable and retractable.
上記実施例では、連結部材３０により一対のリフトアー
ム２８Ｌ、２８Ｒを直接連結する構成としたが、第４図
に示すようにリフトアーム２８Ｒに連結ピン３４により
Ｕ字状の継手金具３５Ｒを取付け、この継手金具３５Ｒ
間を連結部材３０により連結するように構成しても良い
。In the above embodiment, the pair of lift arms 28L and 28R are directly connected by the connecting member 30, but as shown in FIG. This fitting fitting 35R
You may also configure so that the connection member 30 connects between them.
また三点リンク機構２２に限らず、二点リンク機構でも
同様に実施可能である。Further, the present invention is not limited to the three-point link mechanism 22, but can be similarly implemented with a two-point link mechanism.
以上実施例に詳述したように本考案では、左右後輪１３
Ｌ、１３Ｒ間の略中夫に作業機が位置するようにリンク
機構を構成しているので、トラクタ機体１を偏心配置し
ているにも拘らず、全体としての重心位置を左右後輪１
３ Ｌ、１３ Ｒ間の中央側に設定でき、従って湿田等
でのロータリ作業時における片側後輪の沈下、或いは傾
斜地での各種作業時の横転等を確実に防止し、安定した
作業が可能となる。As described in detail in the embodiments above, in the present invention, the left and right rear wheels 13
Since the link mechanism is configured so that the work equipment is located approximately in the middle between L and 13R, the overall center of gravity is shifted to the left and right rear wheels 1, even though the tractor body 1 is eccentrically arranged.
It can be set on the center side between 3L and 13R, and therefore, it reliably prevents the rear wheels on one side from sinking during rotary work in wet fields, etc., or rollover during various types of work on slopes, making it possible to perform stable work. Become.
またリンク機構の構造に合わせて、各リフトアーム２８
Ｌ、２８Ｒを左右後輪１３ Ｌ、１３ Ｒ側に彎曲させ
た場合、例えば第３図に示す如くリフトアーム２８ Ｒ
側が長くなり強度不足となるので、作業機昇降時の荷重
によってリフＩ・アーム２８Ｒが変形する慣れがあった
が、本考案では連結部材３０によりリフトアーム２８Ｌ
、２８Ｒの遊端側を連結しリフ）・アーム２８Ｒ側の荷
重を連結部材３０を介してリフトアーム２８ Ｌにより
一部分担するようにしているので、リフトアーム２８Ｒ
側の強度が１著しく増大し、作業機の昇降が非常に速や
かとなる。Also, depending on the structure of the link mechanism, each lift arm 28
When L and 28R are bent toward the left and right rear wheels 13L and 13R, for example, as shown in Fig. 3, the lift arm 28R
Because the sides become longer and the strength is insufficient, the lift arm 28R used to be deformed by the load when lifting and lowering the work machine, but in this invention, the lift arm 28L is deformed by the connecting member 30.
, 28R are connected to each other and the load on the arm 28R side is partially shared by the lift arm 28L via the connecting member 30, so the lift arm 28R
The strength of the side is significantly increased by 1, and the work equipment can be raised and lowered very quickly.
第１図は本考案の一実施例を示す平面図、第２図は同側
面図、第３図は同要部拡大背面図、第４図７は他の実施
例を示す要部拡大図である。
１・・・・・・１〜ラクタ機体、１３Ｌ、１３Ｒ・・・
・・・後輪、２２・・・・・・三点リンク機構、２５Ｌ
、２５Ｒ・・・・・・ロアリンク、２７・・・・・・油
圧装置、２８Ｌ、２８Ｒ・・・・・リフトアーム、３０
・・・・・・連結部材、３３Ｌ、３３Ｒ・・・・・・リ
フＩ・ロッド。Fig. 1 is a plan view showing one embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is an enlarged rear view of the same main part, and Fig. 4 is an enlarged view of main parts showing another embodiment. be. 1...1~Rakuta aircraft, 13L, 13R...
... Rear wheel, 22 ... Three-point link mechanism, 25L
, 25R...Lower link, 27...Hydraulic system, 28L, 28R...Lift arm, 30
......Connection member, 33L, 33R...Riff I rod.
Claims (1)
いて、作業機が左右後輪間の略中央に位置すべくリンク
機構を構成し、作業機昇降用油圧装置の各リフトアーム
を左右後輪間の中央側に彎曲させ、この一対のリフトア
ームの遊端側を連結部材により相互に連結したことを特
徴とするトラクタの作業機装着装置。In a tractor in which the tractor body is eccentrically arranged between the left and right wheels, a link mechanism is configured so that the work equipment is located approximately at the center between the left and right rear wheels, and each lift arm of the hydraulic system for lifting and lowering the work equipment is positioned at the center between the left and right rear wheels. 1. A work machine mounting device for a tractor, characterized in that the pair of lift arms are curved to the side and the free end sides of the pair of lift arms are connected to each other by a connecting member.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15267576U JPS593Y2 (en) | 1976-11-12 | 1976-11-12 | Tractor work equipment attachment device |
| DE19772749783 DE2749783A1 (en) | 1976-11-11 | 1977-11-07 | TRACTOR WITH LATERALLY DISPOSED BODY |
| US05/849,671 US4211298A (en) | 1976-11-11 | 1977-11-08 | Offset tractor |
| GB46466/77A GB1569465A (en) | 1976-11-11 | 1977-11-08 | Tractors |
| FR7733686A FR2370621A1 (en) | 1976-11-11 | 1977-11-09 | OFF-CENTERED BOX TRACTOR |
| CA290,651A CA1083637A (en) | 1976-11-11 | 1977-11-10 | Offset tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15267576U JPS593Y2 (en) | 1976-11-12 | 1976-11-12 | Tractor work equipment attachment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5369307U JPS5369307U (en) | 1978-06-10 |
| JPS593Y2 true JPS593Y2 (en) | 1984-01-05 |
Family
ID=28760879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15267576U Expired JPS593Y2 (en) | 1976-11-11 | 1976-11-12 | Tractor work equipment attachment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS593Y2 (en) |
-
1976
- 1976-11-12 JP JP15267576U patent/JPS593Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5369307U (en) | 1978-06-10 |
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