JPH0534487Y2 - - Google Patents
Info
- Publication number
- JPH0534487Y2 JPH0534487Y2 JP1986118424U JP11842486U JPH0534487Y2 JP H0534487 Y2 JPH0534487 Y2 JP H0534487Y2 JP 1986118424 U JP1986118424 U JP 1986118424U JP 11842486 U JP11842486 U JP 11842486U JP H0534487 Y2 JPH0534487 Y2 JP H0534487Y2
- Authority
- JP
- Japan
- Prior art keywords
- link
- top link
- attachment member
- connecting portions
- connecting pin
- 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
- Agricultural Machines (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、作業装置連結用のトツプリンクを上
下揺動自在に支持するリンク取付け部材、及び、
走行機体のトツプリンク連結部の夫々に挿通する
連結ピンを介して分離自在に前記リンク取付け部
材を前記トツプリンク連結部に取付けた農用トラ
クターにおける三点式リンク機構の構造に関す
る。[Detailed description of the invention] [Industrial field of application] The present invention provides a link attachment member that supports a top link for connecting a working device in a vertically swingable manner, and
The present invention relates to the structure of a three-point linkage mechanism for an agricultural tractor, in which the link attachment member is separably attached to the top link coupling portions of the traveling body through coupling pins inserted into the respective top link coupling portions.
上記農用トラクターは、走行機体側におけるト
ツプリンク連結箇所を、走行機体に備えてあるト
ツプリンク連結部と、リンク取付け部材に備えて
あるトツプリンク連結部とに、リンク取付け部材
の着脱によつて変更調節するようにしたものであ
る。
In the above agricultural tractor, the top link connection point on the traveling body side can be changed to a top link connection part provided on the traveling body and a top link connection part provided in the link attachment member by attaching and removing the link attachment member. It is designed to be adjusted.
この種農用トラクターにおいて、従来、第４図
及び第５図に示すように、走行機体の部分１と、
リンク取付け部材１０の連結ピン挿通用筒部１０
ｃとの間に着脱自在な楔１８を嵌め込み、走行機
体のトツプリンク連結部１１に連結ピン１２を、
かつ、連結ピン１２にリンク取付け部材１０を
夫々押圧することにより、リンク取付け部材１０
と連結ピン１２の間、及び、連結ピン１２とトツ
プリンク連結部１１の間夫々に在る連結ピン着脱
の容易化のための融通にかかわらずガタ付きのな
い状態にリンク取付け部材を締付け固定するよう
に構成していた。 Conventionally, in this type of agricultural tractor, as shown in FIGS. 4 and 5, a part 1 of the traveling body,
Connecting pin insertion tube portion 10 of link attachment member 10
Insert the removable wedge 18 between the connecting pin 12 and the connecting pin 12 to the top link connecting part 11 of the traveling aircraft.
In addition, by pressing the link attachment members 10 on the connecting pins 12, the link attachment members 10
The link mounting member is tightened and fixed without wobbling, regardless of the flexibility provided between the connecting pin 12 and the connecting pin 12 and between the connecting pin 12 and the top link connecting portion 11 to facilitate attachment and detachment of the connecting pin. It was configured like this.
上記従来構成の場合、殊にリンク取付け部材を
取り外すに当り、楔を強固なくい込みに抗して取
り外さねばならず、リンク取付け部材の固定解除
に手間が掛かると共に多大な労力が必要であり、
この点において改善すべき余地があつた。
In the case of the above-mentioned conventional structure, especially when removing the link mounting member, the wedge must be removed against strong insertion, and it is time-consuming and requires a great deal of effort to release the link mounting member from fixation.
There was room for improvement in this respect.
本考案の目的は、リンク取付け部材の締付け固
定及び固定解除が容易かつ迅速にできるように改
造することにある。 An object of the present invention is to modify the link mounting member so that it can be easily and quickly tightened and fixed and released.
本考案の特徴構成は、作業装置連結用のトツプ
リンクを上下揺動自在に支持するリンク取付け部
材と、走行機体側に固定の左右一対のトツプリン
ク連結部とを、これらリンク取付け部材とトツプ
リンク連結部との両者を挿通する連結ピンを介し
て分離自在に取付けた農用トラクターにおける三
点式リンク機構の構造において前記トツプリンク
連結部の上下の箇所夫々に前記連結ピンを設ける
とともに、前記リンク取付け部材に、前記左右一
対のトツプリンク連結部にわたる状態で、そのト
ツプリンク連結部の突出端縁に接当する当付け部
材と、前記当付け部材をトツプリンク連結部側に
向けて強制移動操作可能なネジジヤツキとを設
け、かつ、前記当付け部材は、前記リンク取付け
部材に対して、前記ネジジヤツキの押し引き方向
で相対移動自在に、かつ、前記トツプリンク連結
部の上下の前記連結ピンの上下間隔幅内で前記突
出端縁に接当する箇所に位置させて設けられてい
ることを特徴とする。
The characteristic structure of the present invention is that a link attachment member that supports a top link for connecting a working device in a vertically swingable manner, and a pair of left and right top link connecting portions fixed to the traveling machine body are connected between these link attachment members and the top link. In the structure of a three-point linkage mechanism for an agricultural tractor, which is detachably attached to the top link connecting portion via a connecting pin that passes through both, the connecting pin is provided at each of the upper and lower portions of the top link connecting portion, and the link mounting member is provided with the connecting pin. , an abutting member that abuts the protruding edge of the top link connecting portion while spanning the pair of left and right top link connecting portions, and a screwdriver operable to forcibly move the abutting member toward the top link connecting portion. and the abutting member is movable relative to the link attaching member in the push/pull direction of the screw jack, and within the vertical interval width of the connecting pins above and below the top link connecting portion. It is characterized in that it is located at a location that abuts the protruding end edge.
従来の楔に比して弱い操作力を付加するだけで
も、ネジジヤツキが強い締付け力を発揮し、当付
け部材を介してリンク取付け部材の締付け固定を
したり、ネジジヤツキがスムーズに締付け解除作
動してリンク取付け部材の固定解除をする。
Even by applying a weak operating force compared to conventional wedges, the screw jack exerts a strong tightening force, and the screw jack can tighten and fix the link attachment member through the abutting member, and the screw jack can smoothly release the tightening force. Unfix the link attachment member.
ネジジヤツキの力を受ける当付け部材を上下の
連結ピン間に位置させてあるから、ネジジヤツキ
と当付け部材の１組のみによつて、上下両方の連
結ピン部位のガタ付きを吸収できるとともに、当
付け部材が左右のトツプリンク連結部に跨がるこ
とにより、左右のリンク取付け部材の締付け固定
を偏りや傾きなく左右均一に行うこともできるよ
うになる。 Since the abutting member that receives the force of the screw is located between the upper and lower connecting pins, only one set of the screw and the abutting member can absorb the looseness of both the upper and lower connecting pin parts, and the abutting By straddling the left and right top link connecting portions, the left and right link attachment members can be tightened and fixed evenly on the left and right without unevenness or inclination.
その結果、リンク取付け部材の締付け固定及び
解除に必要な操作力の軽減が可能になり、その着
脱作業が楽に、かつ、効率良く行えるものを、連
結ピンの連結部分が上下左右に亘るものでありな
がら１組のネジジヤツキと当付け部材だけで実現
できる経済的な状態で提供できた。
As a result, it is possible to reduce the operating force required to tighten and release the link attachment member, and the connecting portion of the connecting pin extends vertically and horizontally, making attachment and detachment work easier and more efficient. However, we were able to provide it in an economical manner that could be realized with just one set of screws and abutment members.
第３図に示すように、車輪式農用トラクターの
機体後部を形成するミツシヨンケース１に、油圧
シリンダ２によつて上下に揺動操作されるリンク
機構３を介して昇降操作するように作業装置の一
例としてのロータリ耕耘装置４を連結すると共
に、前記トラクターからロータリ耕耘装置４に伝
動されるように構成して、乗用型耕耘機を構成し
てある。
As shown in FIG. 3, a working device is attached to a transmission case 1 forming the rear part of a wheeled agricultural tractor so as to be raised and lowered via a link mechanism 3 which is vertically swung by a hydraulic cylinder 2. The rotary tiller 4 is connected to the rotary tiller 4 as an example, and power is transmitted from the tractor to the rotary tiller 4, thereby forming a riding type tiller.
前記リンク機構３は、前記ミツシヨンケース１
と耕耘装置機体４ａとを連結する左右一対のロワ
ーリンク５，５及び１本のトツプリンク６、前記
油圧シリンダ２によつて揺動操作される左右一対
のリフトアーム７，７、一方のリフトアーム７と
一方のロワーリンク５とを連結するリフトロツド
８、並びに、他方のリフトアーム７と他方のロワ
ーリンク５とを連結するリフトロツド８の夫々か
ら成り、三点式リンク機構に構成してある。 The link mechanism 3 is connected to the transmission case 1.
A pair of left and right lower links 5, 5 and one top link 6 connecting the tiller body 4a, a pair of left and right lift arms 7, 7 which are swing-operated by the hydraulic cylinder 2, and one lift arm. 7 and one lower link 5, and a lift rod 8 that connects the other lift arm 7 and the other lower link 5, forming a three-point link mechanism.
前記トツプリンク６は、第１図に示すように、
トツプリンク６を着脱自在な連結ピン９を介して
上下に揺動するように、かつ、着脱が可能なよう
に後端側で支持させたリンク取付け部材１０を介
して前記ミツシヨンケース１に連結してあり、そ
して、前記リンク取付け部材１０は、このリンク
取付け部材１０の前端側と、前記ミツシヨンケー
ス１に備えてあるトツプリンク連結部１１のトツ
プリンク連結孔１１ａとにわたつて挿入してある
一対の着脱自在な連結ピン１２，１２を介して分
離自在に前記トツプリンク連結部１１に取付けて
ある。すなわち、必要に応じ、リンク取付け部材
１０を着脱することにより、トラクターの側にお
けるトツプリンク連結箇所を前記トツプリンク連
結部１１と、リンク取付け部材１０の後端側のト
ツプリンク連結部との前後２箇所に調節するよう
にしてある。 The top link 6, as shown in FIG.
The top link 6 is connected to the transmission case 1 via a detachable connecting pin 9 so as to be able to swing up and down, and via a link attachment member 10 supported at the rear end side so as to be attachable and detachable. The link attachment member 10 is inserted between the front end side of the link attachment member 10 and the top link connection hole 11a of the top link connection portion 11 provided in the transmission case 1. It is detachably attached to the top link coupling portion 11 via a pair of detachable coupling pins 12, 12. That is, by attaching and detaching the link attachment member 10 as necessary, the top link connection point on the tractor side can be changed between the top link connection portion 11 and the top link connection portion on the rear end side of the link attachment member 10. It can be adjusted depending on the location.
第１図及び第２図に示すように、前記リンク取
付け部材１０の一対の主部材１０ａ，１０ａ夫々
の長孔１３に一端側または他端側を入り込ませた
状態で当付け部材１４を装着するとともに、リン
ク取付け部材１０の主部材連結部材１０ｂに付設
したナツト１５と、このナツト１５に螺合し、か
つ、先端部を当付け部材１４に入込ませたボルト
１６とで成るネジジヤツキ１７を備えてある。 As shown in FIGS. 1 and 2, the abutment member 14 is attached with one end or the other end inserted into the elongated hole 13 of each of the pair of main members 10a, 10a of the link attachment member 10. In addition, a screw jack 17 is provided, which is made up of a nut 15 attached to the main member connecting member 10b of the link attachment member 10, and a bolt 16 that is screwed into the nut 15 and has its tip inserted into the abutting member 14. There is.
すなわち、前記トツプリンク連結部１１の端面
に当付け部材１４を接当させ、ボルト１６の回動
操作をすると、第１図イ及び第２図に明示するよ
うに、ボルト１６がナツト１５に対してトツプリ
ンク連結部１１の方に螺進し、トツプリンク連結
部１１を反力部材としてリンク取付け部材１０を
トツプリンク連結部１１に対して機体後方側に移
動させてトツプリンク連結部１１に連結ピン１２
を、かつ、連結ピン１２に一対の前記主部材１０
ａ，１０ａを夫々押圧するように、あるいは、第
１図イに示すようにボルト１６がナツト１５に対
してトツプリンク６の方に螺進し、リンク取付け
部材１０の移動操作を解除して連結ピン１２のト
ツプリンク連結部１１に対する押圧、及び、一対
の主部材１０ａ，１０ａの連結ピン１２に対する
押圧を夫々解除するようにしてある。つまり、リ
ンク取付け部材１０と連結ピン１２との間、及
び、トツプリンク連結部１１と連結ピン１２との
間夫々に連結ピン着脱の容易化のために設けてあ
る融通にかかわらずガタ付かないように、リンク
取付け部材１０を当付け部材１４とネジジヤツキ
１７によつてトツプリンク連結部１１に締付け固
定するようにしてある。 That is, when the abutting member 14 is brought into contact with the end face of the top link connecting portion 11 and the bolt 16 is rotated, the bolt 16 is moved against the nut 15, as clearly shown in FIGS. 1A and 2. The top link connecting part 11 is used as a reaction force member to move the link attachment member 10 toward the rear of the fuselage with respect to the top link connecting part 11 and connect it to the top link connecting part 11. pin 12
and a pair of the main members 10 on the connecting pin 12.
a and 10a, respectively, or as shown in FIG. The pressure of the pin 12 on the top link connection portion 11 and the pressure of the pair of main members 10a, 10a on the connection pin 12 are released, respectively. In other words, regardless of the flexibility provided between the link attachment member 10 and the connecting pin 12 and between the top link connecting portion 11 and the connecting pin 12 to facilitate the attachment and detachment of the connecting pin, no rattling can occur. In addition, the link attachment member 10 is tightened and fixed to the top link connecting portion 11 by an abutting member 14 and a screw 17.
図面は本考案に係る農用トラクターにおける三
点式リンク機構の構造の実施例を示し、第１図イ
及びロはリンク取付け部材の一部切欠き側面図、
第２図はリンク取付け部材の一部切欠き平面図、
第３図は乗用型耕耘機後部の側面図である。第４
図は従来締付け機構の側面図である。第５図は従
来締付け機構の一部切欠き平面図である。
１……走行機体、６……トツプリンク、１０…
…リンク取付け部材、１１……トツプリンク連結
部、１２……連結ピン、１４……当付け部材、１
７……ネジジヤツキ。
The drawings show an embodiment of the structure of a three-point link mechanism in an agricultural tractor according to the present invention, and FIGS. 1A and 1B are partially cutaway side views of the link attachment member;
Figure 2 is a partially cutaway plan view of the link mounting member;
FIG. 3 is a side view of the rear part of the riding type tiller. Fourth
The figure is a side view of a conventional tightening mechanism. FIG. 5 is a partially cutaway plan view of a conventional tightening mechanism. 1... Traveling aircraft, 6... Top link, 10...
...Link attachment member, 11...Top link connection portion, 12...Connection pin, 14...Abutting member, 1
7... Nejijitsuki.
Claims (1)
在に支持するリンク取付け部材１０と、走行機体
１側に固定の左右一対のトツプリンク連結部１
１，１１とを、これらリンク取付け部材１０とト
ツプリンク連結部１１，１１との両者を挿通する
連結ピン１２を介して分離自在に取付けた農用ト
ラクターにおける三点式リンク機構の構造であつ
て、 前記トツプリンク連結部１１，１１の上下の箇
所夫々に前記連結ピン１２の挿通部分を設けると
ともに、 前記リンク取付け部材１０に、前記左右一対の
トツプリンク連結部１１，１１にわたる状態で、
そのトツプリンク連結部１１，１１の突出端縁に
接当する当付け部材１４と、前記当付け部材１４
をトツプリンク連結部１１側に向けて強制移動操
作可能なネジジヤツキ１７とを設け、 かつ、前記当付け部材１４は、前記リンク取付
け部材１０に対して、前記ネジジヤツキ１７の押
し引き方向で相対移動自在に、かつ、前記トツプ
リンク連結部１１，１１の上下の前記連結ピン１
２，１２の上下間隔幅内で前記突出端縁に接当す
る箇所に位置させて設けられている農用トラクタ
ーにおける三点式リンク機構の構造。[Claims for Utility Model Registration] A link attachment member 10 that supports a top link 6 for connecting a working device in a vertically swingable manner, and a pair of left and right top link connecting portions 1 fixed to the traveling body 1 side.
1 and 11 are separably attached via a connecting pin 12 that passes through both the link attachment member 10 and the top link connecting portions 11 and 11, the structure of a three-point link mechanism for an agricultural tractor includes: A portion through which the connecting pin 12 is inserted is provided at each of the upper and lower parts of the link connecting portions 11, 11, and the link mounting member 10 is provided with a portion extending over the pair of left and right top link connecting portions 11, 11,
an abutting member 14 that comes into contact with the protruding edges of the top link connecting portions 11, 11;
and a screw jack 17 that can be operated forcibly to move the top link toward the top link connecting portion 11 side, and the abutting member 14 is movable relative to the link mounting member 10 in the pushing and pulling direction of the screw jack 17. and the connecting pins 1 above and below the top link connecting parts 11, 11.
A structure of a three-point link mechanism in an agricultural tractor, which is provided at a location that abuts the protruding edge within a vertical interval width of 2,12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986118424U JPH0534487Y2 (en) | 1986-07-31 | 1986-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986118424U JPH0534487Y2 (en) | 1986-07-31 | 1986-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6323911U JPS6323911U (en) | 1988-02-17 |
| JPH0534487Y2 true JPH0534487Y2 (en) | 1993-09-01 |
Family
ID=31004861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986118424U Expired - Lifetime JPH0534487Y2 (en) | 1986-07-31 | 1986-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0534487Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54115304U (en) * | 1978-02-02 | 1979-08-13 |
-
1986
- 1986-07-31 JP JP1986118424U patent/JPH0534487Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6323911U (en) | 1988-02-17 |
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