JPS6310649Y2

JPS6310649Y2 -

Info

Publication number: JPS6310649Y2
Application number: JP1981150615U
Authority: JP
Priority date: 1981-10-09
Filing date: 1981-10-09
Publication date: 1988-03-30
Also published as: JPS5855405U

Description

【考案の詳細な説明】本考案は、走行機体に上下揺動自在に枢着され
たトツプリンクの保持装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a top link holding device that is pivotally mounted to a traveling aircraft body so as to be able to swing up and down.

トツプリンクに耕耘装置等の作業装置を連結し
ていないトツプリンクの非使用時には、前記トツ
プリンクの垂れ下がりを防止する為に、前記トツ
プリンクを上方に揺動させて走行機体に固定保持
しておくのであるが、前記トツプリンクを固定保
持する手段として、トツプリンクの中間部に、線
材をループ状に折り曲げ形成したフツク状金具を
揺動自在に設け、他方、走行機体側に、前記フツ
ク状金具を通すことが可能な間〓を備えたＣの字
状の固定金具を設けて、前記トツプリンクを機体
側に揺動させて、前記トツプリンクに枢着のルー
プ状金具を前記Ｃの字状の固定金具に係止して、
前記トツプリンクを固定保持する手段が考えられ
るが、斯かる場合には、前記トツプリンクに前記
フツク状金具を枢支する為のブラケツトを溶接等
によつて付設しなればならず、又、トツプリンク
と作業装置とを連結する連結ピンを別途保管して
おく必要が生じる等の不都合がある。 When the top link is not in use and a working device such as a tilling device is not connected to the top link, the top link is swung upward and held fixed to the traveling machine in order to prevent the top link from sagging. However, as a means for fixing and holding the top link, a hook-shaped metal fitting formed by bending a wire into a loop shape is provided in the middle part of the top link so as to be swingable, and on the other hand, the hook-shaped metal fitting is provided on the traveling machine body side. A C-shaped fixing metal fitting with a gap that can be passed through is provided, and the top link is swung toward the aircraft body, and a loop-shaped metal fitting pivotally attached to the top link is attached to the C-shaped metal fitting. Lock it to the fixing bracket of
A means of fixing and holding the top link may be considered, but in such a case, a bracket for pivotally supporting the hook-shaped metal fitting must be attached to the top link by welding or the like, and There are inconveniences such as the need to separately store a connecting pin that connects the link and the working device.

本考案は、トツプリンクの固定保持構造を工夫
することによつて上記欠点を解消することを目的
とする。 The present invention aims to eliminate the above-mentioned drawbacks by devising a structure for fixing and holding the top link.

上記目的を達成する為の本考案の特徴構成は、
一端側にトツプリンクと作業装置とを連結する連
結ピンを備え、他端側に、走行機体の固定部材に
対して外嵌係止自在なリングと、前記連結ピンに
対する抜止めピンとを備えた索状体の中間部を、
トツプリンクに対して外嵌係止自在なＣの字状リ
ングを介して前記トツプリンクに外嵌係止して設
け、さらに、前記固定部材に対して外嵌係止自在
なリングは、前記固定部材の大径部分を嵌入させ
る大径孔部を有し、かつ、その大径部孔の周部
で、前記固定部材の小径部に嵌係合する凹部と前
記索状体に対する連結用の凹部とを、互いに開放
側が相対向する状態に位置させて形成した点にあ
る。 The characteristic structure of this invention to achieve the above purpose is as follows:
A cable that is provided with a connecting pin that connects the top link and the working device on one end side, and a ring that can be externally fitted and locked onto a fixed member of the traveling machine body, and a retaining pin for the connecting pin on the other end side. The middle part of the body is
The top link is provided with a C-shaped ring which is externally fitted and latched to the top link, and the ring which is externally latched to the fixing member is provided with a C-shaped ring which is externally fitted and latched to the top link. A recess that has a large diameter hole into which the large diameter portion of the member is fitted, and a recess that engages with the small diameter portion of the fixing member and a recess that connects to the cord-like body at the circumference of the large diameter hole. and are formed with their open sides facing each other.

上記構成によれば、一端側に連結ピンを、他端
側に機体の固定部材に対する係止用のリングと前
記連結ピンに対する抜止めピンとを連結した索状
体を、Ｃ字状リングを介してトツプリンクに外嵌
係止することによつて、機体の固定部材に対する
リングを、トツプリンクにブラケツトを設けるこ
となく連結することができ、既存の装置に対して
容易に取付けることができる。 According to the above configuration, the cable-like body, which has a connecting pin connected to one end and a locking ring for a fixing member of the fuselage and a retaining pin for the connecting pin connected to the other end, is connected to the connecting pin through the C-shaped ring. By externally engaging the top link, the ring can be connected to the fixing member of the fuselage without providing a bracket on the top link, and can be easily attached to existing equipment.

そしてまた、前記リングをトツプリンクに連結
する為の索状体に対して、その一端側に連結ピン
を連結してあるから、前記連結ピンの紛失を防止
し得るとともに、前記索状体の他端側に連結ピン
に対する抜止めピンを連結してあるから、作業装
置非連結状態におけるトツプリンクの作業装置に
対する連結孔に前記連結ピンを挿入して、その連
結ピンに対して抜止めピンを差し込むことによつ
て、前記連結ピンの揺動を固定して、騒音を抑制
し得るとともに、前記連結ピンが他部材に引つ掛
かつて千切れたりすることを抑制し得る。尚、前
記固定部材が運転席のサスペンシヨンバネ調節用
のノブ付きボルトである場合には、前記リングに
対する特別な固定部材を別途設けることなく、本
来装備されているサスペンシヨンバネ調節用のノ
ブ付きボルトを有効利用してトツプリンク保持構
造の簡略化を図ることができる。 Furthermore, since a connecting pin is connected to one end of the cable-shaped body for connecting the ring to the top link, it is possible to prevent the coupling pin from being lost, and to prevent other parts of the cable-shaped body from being lost. Since a retaining pin for the connecting pin is connected to the end side, the connecting pin is inserted into the connecting hole for the top link to the working device when the working device is not connected, and the retaining pin is inserted into the connecting pin. In this way, the swinging of the connecting pin can be fixed, noise can be suppressed, and the connecting pin can be prevented from getting caught on another member and being torn off. In addition, if the fixing member is a bolt with a knob for adjusting the suspension spring on the driver's seat, there is no need to separately provide a special fixing member for the ring, and the bolt with the knob for adjusting the suspension spring that is originally equipped can be used. The top link holding structure can be simplified by effectively utilizing the bolts.

以下、本考案の実施例を図面に基づいて説明す
る。 Hereinafter, embodiments of the present invention will be described based on the drawings.

第１図で示すように、走行機体の一例であるト
ラクタ本体Ａの後部に、作業装置の一例であるロ
ータリ耕耘装置Ｂを、一本のトツプリンク１と左
右一対のロアーリンク２，２を介して昇降自在に
枢支連結するとともに、前記トラクタ本体Ａの構
成部材であるミツシヨンケース３の上部に前記ロ
アリンク２，２にリフトロツド４，４を介して枢
支連結されたリフトアーム５，５を支承し、か
つ、このリフトアーム５，５を横軸芯周りで上下
方向に駆動揺動させるためのシリンダ６を内装す
るケース７を取付け、更に、前記シリンダケース
７の上部には、サスペンシヨン調節機構８を介し
て運転席９を設けて作業機としての乗用型耕耘機
を構成している。 As shown in FIG. 1, a rotary tiller B, which is an example of a working device, is attached to the rear of a tractor main body A, which is an example of a traveling machine, through one top link 1 and a pair of left and right lower links 2, 2. Lift arms 5, 5 are pivotally connected to the lower links 2, 2 via lift rods 4, 4 to the upper part of the transmission case 3, which is a component of the tractor main body A. A case 7 is installed in which a cylinder 6 for supporting the lift arms 5, 5 and driving and swinging them in the vertical direction around the horizontal axis is installed. A driver's seat 9 is provided via an adjustment mechanism 8 to constitute a riding type cultivator as a working machine.

前記トツプリンク１の一端部は、前記シリンダ
ケース７に固着したブラケツト１０に対して上下
揺動自在で、かつ、上下方向の３位置に取付け位
置変更自在に枢支連結されており、他端部は、前
記耕耘装置Ｂの連結部材１１に対して連結ピン１
２及びこれの一端に形成した貫通孔１２ａに対し
て挿抜自在な抜止めピン１３を介して着脱自在に
枢支連結されている。 One end of the top link 1 is pivotally connected to a bracket 10 fixed to the cylinder case 7 so that it can swing up and down, and can be installed in three positions in the up and down direction. is the connecting pin 1 with respect to the connecting member 11 of the tilling device B.
2 and a through hole 12a formed at one end thereof via a retaining pin 13 that can be inserted and removed freely.

前記サスペンシヨン機構８は、前記シリンダケ
ース７に固着した取付けケース１４に対して前記
運転席９を支持する平行四連リンク１５，１５の
うち、一方のリンク１５に枢支連結したロツド１
６と前記取付けケース１４との間にサスペンシヨ
ンバネ１７を介在し、このバネ１７の弾性力を調
節するノブ１８ａ付きのボルト１８を設け構成さ
れている。 The suspension mechanism 8 includes a rod 1 pivotally connected to one of four parallel links 15, 15 that support the driver's seat 9 with respect to a mounting case 14 fixed to the cylinder case 7.
A suspension spring 17 is interposed between the suspension spring 17 and the mounting case 14, and a bolt 18 with a knob 18a for adjusting the elastic force of the spring 17 is provided.

而して、前記連結ピン１２と抜止めピン１３と
を連結するチエーン（索状体の一例）１９の中間
部をＣの字状リング２１を介して前記トツプリン
ク１に外嵌支持させ、このチエーン１９に、トラ
クタ本体Ａ側の固定部材を構成する前記サスペン
シヨン機構８のボルト１８に対して上下方向から
外嵌ならびに抜出し自在で、かつ、その外嵌状態
において前記トツプリンク１を上向きの格納姿勢
で係止保持するリング２０を付設するとともに、
前記固定部材１８に対して外嵌係止自在なリング
２０は、前記固定部材１８の大径部分を嵌入させ
る大径孔部２０ａを有し、かつ、その大径部孔２
０ａの周部で、前記固定部材１８の小径部１８ｂ
に嵌係合する凹部２０ｂと前記索状体１９に対す
る連結用の凹部２０ｃとを、互いに開放側が相対
向する状態に位置させて形成してある。 The intermediate portion of the chain (an example of a cable-like body) 19 connecting the connecting pin 12 and the retaining pin 13 is externally supported by the top link 1 via a C-shaped ring 21. The chain 19 is configured such that the bolt 18 of the suspension mechanism 8, which constitutes a fixing member on the side of the tractor body A, can be freely fitted onto and removed from above and below, and the top link 1 is retracted upward in the fitted state. In addition to attaching a ring 20 for locking and holding in the posture,
The ring 20 that can be externally fitted and locked to the fixing member 18 has a large diameter hole 20a into which the large diameter portion of the fixing member 18 is fitted, and the large diameter hole 2
At the circumference of 0a, the small diameter portion 18b of the fixing member 18
A recess 20b that fits into the cable member 19 and a recess 20c for connection to the cable member 19 are formed such that their open sides face each other.

尚、実用新案登録請求の範囲の項に図面との対
照を便利にする為に符号を記すが、該記入により
本考案は添付図面の構造に限定されるものではな
い。 Incidentally, although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

図面は本考案に係る作業機のトツプリンク保持
装置の実施の態様を例示し、第１図は乗用型耕耘
機の後部の一部切欠側面図、第２図はトツプリン
クの格納状態を示す側面図、第３図は要部の斜視
図、第４図は要部の拡大図である。Ａ……走行機体、Ｂ……作業装置、１……トツ
プリンク、９……運転席、１２……連結ピン、１
３……抜止めピン、１８……固定部材、１８ｂ…
…小径部、１９……索状体、２０……リング、２
０ａ……大径孔部、２０ｂ，２０ｃ……凹部、２
１……Ｃの字状リング。 The drawings illustrate an embodiment of the top link holding device for a working machine according to the present invention, and FIG. 1 is a partially cutaway side view of the rear part of a riding power cultivator, and FIG. 2 is a side view showing the top link in a retracted state. 3 are perspective views of the main parts, and FIG. 4 is an enlarged view of the main parts. A... Traveling body, B... Working device, 1... Top link, 9... Driver's seat, 12... Connecting pin, 1
3... Retaining pin, 18... Fixing member, 18b...
...Small diameter part, 19...Cable body, 20...Ring, 2
0a...Large diameter hole, 20b, 20c...Recess, 2
1...C-shaped ring.

Claims

[Claims for Utility Model Registration] 1. A connecting pin 12 that connects the top link 1 and the working device B on one end side, and a connecting pin 12 that can be externally fitted and locked to the fixing member 18 of the traveling machine body A on the other end side. The middle part of the cable-shaped body 19, which includes a ring 20 and a retaining pin 13 for the connecting pin 12, is connected to the top link 1 through a C-shaped ring 21 that can be externally fitted and locked to the top link 1. The ring 20 is provided to be externally fitted and locked to the fixing member 18, and can be fitted and locked externally to the fixing member 18.
and at the periphery of the large diameter hole 20a,
A top link of a working machine, in which a recess 20b that fits into the small diameter portion 18b of the fixing member 18 and a recess 20c for connection to the cable-like body 19 are positioned such that their open sides face each other. holding device. 2. The top link holding device for a working machine according to claim 1, wherein the fixing member 18 is a bolt with a knob for adjusting the suspension spring 17 of the driver's seat 9.