JPS6279703A - Hitch structure of working machine - Google Patents
Hitch structure of working machineInfo
- Publication number
- JPS6279703A JPS6279703A JP21976885A JP21976885A JPS6279703A JP S6279703 A JPS6279703 A JP S6279703A JP 21976885 A JP21976885 A JP 21976885A JP 21976885 A JP21976885 A JP 21976885A JP S6279703 A JPS6279703 A JP S6279703A
- Authority
- JP
- Japan
- Prior art keywords
- machine
- hook
- bracket
- link mechanism
- working
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は例えば6条植及び8条植用等の横幅の広い苗の
せ台を有する田植機を作業車等に積込んで運搬する際に
、前記苗のせ台を備えた苗植付装置を本機と分離して積
込めるように、本機に対して作業装置が着脱自在で、且
つ、その着脱が容易に行えるように構成した作業機の連
結構造に関し、詳しくは、本機側昇降リンク機構と作業
装置側ブラケットとの連結部位の一方に、相手方に向か
って突出する吊下げフックと、他方に、前記吊下げフッ
クに係合可能な係合孔を設けて、本機側昇降リンク機構
と作業装置側ブラケットを係脱自在に構成し、さらに、
前記本機側昇降リンク機構と作業装置側ブラケットとを
連結固定するロック機構を設けた作業機の連結構造に関
する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is suitable for use when loading a rice transplanter with a wide seedling stand for 6-row planting, 8-row planting, etc. into a work vehicle and transporting the rice transplanter. , a working machine configured such that the working device is detachable from the machine and can be easily attached and detached so that the seedling planting device equipped with the seedling stand can be loaded separately from the machine; Regarding the connection structure, in detail, one of the connection parts between the lifting link mechanism on the machine side and the bracket on the work equipment side has a hanging hook that projects toward the other side, and the other side has a hanging hook that can be engaged with the hanging hook. An engagement hole is provided so that the lifting link mechanism on the machine side and the bracket on the working device side can be freely engaged and detached, and further,
The present invention relates to a connection structure for a working machine, which is provided with a locking mechanism that connects and fixes the lifting link mechanism on the main machine side and the bracket on the working machine side.
上記構成の作業機の連結構造によれば、係合孔に吊下げ
フックを引っ掛けて本機側昇降リンク機構を上昇させれ
ば、作業装置が自重で本機側に相対接近し、本機側昇降
リンク機構と作業装置側ブラケットを連結固定するロッ
ク機構の連結が容易に行える利点を有するのであるが、
従来、ピンとフックによるロック機構を介して本機側昇
降リンク機構と作業装置側ブラケットとを連結固定する
と、本機側昇降リンク機構と作業装置側ブラケットとが
一体的に剛体連結されるものであった(例えば、実開昭
59−187923号公報)。According to the work equipment connection structure with the above configuration, if the hanging hook is hooked to the engagement hole and the lifting link mechanism on the machine side is raised, the work equipment approaches the machine side by its own weight, and This has the advantage that the locking mechanism that connects and fixes the lifting link mechanism and the working equipment side bracket can be easily connected.
Conventionally, when the machine-side lifting link mechanism and the working equipment-side bracket were connected and fixed via a locking mechanism using a pin and a hook, the machine-side lifting link mechanism and the working equipment-side bracket were integrally and rigidly connected. (For example, Japanese Utility Model Application Publication No. 59-187923).
本機に対して連結する作業装置としての苗植付装置に換
えて、施肥装置を付設した重量の重い苗植付装置を連結
すると、本機の後輪荷重が増大して耕盤への沈下量が前
輪のそれより多くなって、本機が後傾姿勢となり、従っ
て、本機に対して剛体的に連結された苗植付装置も後傾
姿勢となって苗のせ台傾斜角の増大化による苗のズリ落
ち変形が発生しやすくなったり、苗植付装置を昇降制御
する場合の感知特性が変化してしまうような不都合があ
った。If you connect a heavy seedling planting device with a fertilization device instead of the seedling planting device as a working device connected to this machine, the load on the rear wheels of this machine will increase and cause it to sink into the tiller. The amount becomes larger than that of the front wheels, causing the machine to tilt backwards.Therefore, the seedling planting device rigidly connected to the machine also tilts backwards, increasing the angle of inclination of the seedling platform. There have been disadvantages such as the seedlings being more likely to become deformed due to shearing, and the sensing characteristics when controlling the raising and lowering of the seedling planting device changing.
また、苗植付装置を下降した時に、苗植付装置が異物の
上にのりかかるとか、衝撃的にフロートの後端が大きく
泥面に沈没して接地してロック機構等が変形するおそれ
もあった。In addition, when the seedling planting device is lowered, there is a risk that the seedling planting device may rest on a foreign object, or the rear end of the float may sink into the mud surface and touch the ground due to impact, deforming the locking mechanism, etc. there were.
本発明は、前記ロック機構の構造を工夫することによっ
て上記欠点を解消することを目的とする。An object of the present invention is to eliminate the above drawbacks by devising the structure of the locking mechanism.
上記目的を達成する為の本発明の特徴構成は、前記本機
側昇降リンク機構と作業装置側ブラケットとを、本機側
昇降リンク機構に対して作業装置側ブラケットを弾性的
に引き寄せた状態で固定連結するロック機構を設けた点
にある。The characteristic configuration of the present invention for achieving the above object is to connect the machine side lifting link mechanism and the working equipment side bracket in a state in which the working equipment side bracket is elastically drawn to the main machine side lifting link mechanism. The point is that a locking mechanism for fixed connection is provided.
本機に対して作業袋πを弾性的に引き寄せてロックする
ロック機構を設けたから、本機が後傾姿勢の場合には、
本機側昇降リンク機構に対して作業装置側ブラケットを
吊り下げるフックを支点にして、作業装置としての苗植
付装置が、本機側リンク機構に対して作業装置側ブラケ
ットを弾性的に引き寄せてロックするロック機構の付勢
力に抗して上方に回動し、苗植付装置のフロート下面全
体が泥面に接地すると共に、また、苗植付装置の下降時
においては、ロック機構の付勢力に抗して苗植付装置が
吊下げフックを支点にして上方に回動することによって
、その対地衝撃力を吸収緩和する。We have provided a locking mechanism that elastically pulls and locks the work bag π against the machine, so when the machine is tilted backwards,
The seedling planting device as a working device elastically pulls the working device side bracket against the machine side link mechanism using the hook that suspends the working device side bracket from the machine side lifting link mechanism as a fulcrum. It rotates upward against the biasing force of the locking mechanism, and the entire lower surface of the float of the seedling planting device comes into contact with the mud surface, and when the seedling planting device is lowered, the biasing force of the locking mechanism The seedling planting device rotates upward using the hanging hook as a fulcrum, thereby absorbing and alleviating the ground impact force.
従って、ロック機構の破損を抑制して、ロック機構の耐
久性並びに植付は性能を向上することができる。Therefore, damage to the lock mechanism can be suppressed, and durability of the lock mechanism and planting performance can be improved.
第5図に示すように、操縦部(1)及び前後輪(2)
、 (3)を備えた本機(A)の後端に油圧シリンダ(
4)で昇JIS駆動可能なリンク機構(5)を連接し、
このリンク機構(5)の後端に多数条の苗のせ台(6)
及び植付機構(7)を備えた苗植付袋W(8)を前記リ
ンク機構(5)に着脱自在に連結して作業機の一つであ
る乗用型田植機を構成しである。As shown in Figure 5, the control section (1) and the front and rear wheels (2)
, (3) A hydraulic cylinder (
At 4), connect the link mechanism (5) that can be driven by ascending JIS,
At the rear end of this link mechanism (5) is a multi-row seedling stand (6).
A seedling planting bag W (8) equipped with a planting mechanism (7) and a planting mechanism (7) is detachably connected to the link mechanism (5) to constitute a riding type rice transplanter which is one of the working machines.
前記リンク機構(5)と苗植付装置(8)との連結構造
について詳述すると、前記リンク機構の後端に位置する
縦姿勢の溝形形状リンク(5A)の下端部に横向き支点
ピン(9)を貫通支承するとともに、前記ピン(9)の
左右側突出端にロアリンク(5B) 、 (5B)を相
対揺動可能に連結し、前記縦リンク(5A)の上端近傍
には後方上方に向けて突出する吊下げフック(10)を
設けてある。一方、苗植付袋Wt(8)側には後記する
プラテン) (11)の下端面に軸心を前後方向に一致
させた筒ボス(12)を固着するとともに、この筒ボス
(12)に対して、植付伝動ケース(13)から突設さ
せた支軸(14)を相対回動可能に遊嵌して、前記苗植
付装置(8)を左右にローリング作動可能に構成しであ
る。前記溝形状のプラテン) (11)には前記フック
(10)と嵌係合可能な係合孔(11A)が設けられ、
この係合孔(11A)は上方側程前記吊下げフック(1
0)の横幅に等しい幅になるように形成しである。よっ
て、前記係合孔(11A)に吊下げフ・7り(10)を
差し込む際には幅広の部分で余裕を持って差し込み、前
記昇降リンク機構(5)を上方作動させることによって
、前記吊下げフック(10)を係合孔(11A)の上端
所定位置に係合させ、苗植付装置(8)を昇降リンク機
構(5)に取付けることができる。To explain in detail the connection structure between the link mechanism (5) and the seedling planting device (8), a horizontal fulcrum pin ( 9), and lower links (5B), (5B) are connected to the left and right protruding ends of the pin (9) so as to be relatively swingable, and near the upper end of the vertical link (5A) there is a rear upper link. A hanging hook (10) is provided that projects toward the. On the other hand, on the side of the seedling planting bag Wt (8), a cylindrical boss (12) whose axis is aligned in the front-rear direction is fixed to the lower end surface of a platen (11), which will be described later. On the other hand, a supporting shaft (14) protruding from a planting transmission case (13) is loosely fitted so as to be relatively rotatable, so that the seedling planting device (8) can be rolled from side to side. . The groove-shaped platen (11) is provided with an engagement hole (11A) that can be fitted and engaged with the hook (10),
This engagement hole (11A) is disposed toward the upper part of the hanging hook (11A).
It is formed to have a width equal to the width of 0). Therefore, when inserting the hanging flap (10) into the engagement hole (11A), insert it with plenty of room at the wide part, and by operating the lifting link mechanism (5) upward, the hanging flap (10) can be inserted. The seedling planting device (8) can be attached to the lifting link mechanism (5) by engaging the lowering hook (10) with the upper end of the engagement hole (11A) at a predetermined position.
前記縦リンク(5A)の下端部側側面に、前記ブラケッ
ト (11)を弾性的に引き寄せた状態で固定連結する
四ツク機構(B)が設けられている。A four-prong mechanism (B) is provided on the side surface of the lower end of the vertical link (5A) to fixedly connect the bracket (11) in an elastically drawn state.
すなわち、第1図及び第2図に示すように、前記ブラケ
ッI−(11)の下端部横側面から突出するロックピン
を(15)を設け、他方、前記縦リンク(5八)の下端
部で左右に突設した支軸ピン(16)の左右突出端部に
前記ブラケン)(11)側口ツクビン(15)に対し上
方から係合可能なフック(17)を相対回動可能に取付
け、他端に手動操作用握り部(18)を設けて、前記ブ
ラケット (11)を縦リンク(5A)に取付係合嵌合
後、前記フック(17)を回動操作して、両者ブラケッ
ト(11)と縦リンク(5A)の係合状態を固定するよ
うにしである。That is, as shown in FIGS. 1 and 2, a lock pin (15) is provided that protrudes from the lateral side of the lower end of the bracket I-(11), and a lock pin (15) is provided at the lower end of the vertical link (58). A hook (17) that can be engaged from above with respect to the side opening pin (15) of the bracket (11) is attached to the left and right protruding ends of the support pin (16) that protrudes from the left and right at the side so that it can rotate relatively. A grip part (18) for manual operation is provided at the other end, and after the bracket (11) is attached and engaged with the vertical link (5A), the hook (17) is rotated, and both the bracket (11) ) and the vertical link (5A) are fixed.
前記フック(17)対して握り部(18)が相対回動で
きるようにボス部(17A) 、 (18A)どうしが
2分割され、そのボス部(17A) 、 (18A)対
向端面に軸芯方向に突出する当り部(17a) 、 (
18a)が設けられ、その当り部(17a) 、 (1
8a)の相対間隔(L)により、前記フック(17)に
対して握り部(18)が一定範囲内で相対回動できるよ
うに構成されている。The boss portions (17A) and (18A) are divided into two parts so that the grip portion (18) can rotate relative to the hook (17), and the boss portions (17A) and (18A) have opposite end faces in the axial direction. The abutment part (17a) protruding from the (
18a) is provided, and the contact portions (17a) and (1
The relative distance (L) of 8a) allows the grip portion (18) to rotate relative to the hook (17) within a certain range.
そして、前記フック(17)が長手方向で2分割され、
ピン(19)と長孔(20)による融通によって伸縮自
在に構成されている。そして、ブラケット(11)側の
ロックピン(15)にフック(17)を係合した状態で
前記ブラケット(11)をリンク機構(5)側に引き寄
せるスプリング(21)が設けられている。前記スプリ
ング(21)の他端側はCの字型リンク(22)を介し
てレバー側ボス部(18A)から延出のアーム(18b
)に連結されている。また、前記スプリング(21)は
、握り部側ボス部(18A)端面の当り部(18a)が
、フック側ボス部(17A)端面の当り部(17a)に
接当するように初期圧力が加えられた状態で設けられて
いる。そして、前記ブラケット(11)側のロックピン
(15)は、吊り下げフック(10)を介してブラケソ
1−(11)を縦リンク(5A)に係合連結した状態に
おいて、第3図及び第4図に示すように、フック凹入部
(17b)中心の回動軌跡(P)に対してロックピン(
15)の中心がやや半径方向外方に位置する状態で設け
られている。The hook (17) is divided into two in the longitudinal direction,
It is configured to be expandable and retractable through the flexibility of the pin (19) and the elongated hole (20). A spring (21) is provided that draws the bracket (11) toward the link mechanism (5) while the hook (17) is engaged with the lock pin (15) on the bracket (11) side. The other end of the spring (21) is connected to an arm (18b) extending from the lever side boss portion (18A) via a C-shaped link (22).
) is connected to. Further, the spring (21) is applied with an initial pressure so that the abutment part (18a) on the end face of the grip-side boss part (18A) comes into contact with the abutment part (17a) on the end face of the hook-side boss part (17A). It is set up in a state where The lock pin (15) on the bracket (11) side is connected to the vertical link (5A) when the bracket 1-(11) is engaged and connected to the vertical link (5A) via the hanging hook (10). As shown in Figure 4, the lock pin (
15) with the center located slightly outward in the radial direction.
次に、ロック機構(B)の作動について説明する。Next, the operation of the lock mechanism (B) will be explained.
第3図に示すように、ロックピン(15)にフック(1
7)が接当して仮想線に示す握り部(18)の位置から
更に握り部(18)を回動させると、握り部側ボス部(
18A)端面の当り部(18a)がフック側ボス部(1
7A)端面の当り部(17a)に接当し、そして、更に
、握り部(18)を実線に示すように回動させると、ア
ーム(18b)とCの字型リンク(22)の連結点が、
握り部(18)の回動中心と、フック(17)とスプリ
ング(21)との連結点を結ぶデッドポイントを越えて
スプリング(21)が引き伸ばされると共に、更に握り
部(18)を回動させるとロックピン(15)との接当
によってスプリング(21)の付勢力に抗してフック(
17)が伸長されて第1図に示す如(、固定連結が行わ
れる。As shown in Figure 3, the hook (1) is attached to the lock pin (15).
When the grip part (18) is further rotated from the position of the grip part (18) shown in the imaginary line where the grip part 7) comes into contact with the grip part side boss part (
18A) The contact part (18a) of the end surface is connected to the hook side boss part (1
7A) When the grip part (18) is brought into contact with the abutment part (17a) on the end face and further rotated as shown by the solid line, the connection point between the arm (18b) and the C-shaped link (22) but,
The spring (21) is stretched beyond the dead point connecting the center of rotation of the grip (18) and the connection point between the hook (17) and the spring (21), and the grip (18) is further rotated. The hook (
17) is extended and a fixed connection is made as shown in FIG.
そして、ロック解除時には、第1図の状態から第4図実
線に示す如く、握り部(18)を回動操作すると、握り
部(18)側ポス部(18A)端面の当り部(18a)
が、フック(17)側ボス部(17A)端面の当り部(
17a)に接当する回動操作によって、先ず最初に、ス
プリング(21)の付勢が弱められ、それから、さらに
、握り部(18)を回動するとロックピン(15)に対
するフック(17)の係合が解除されるべく構成されて
いる。そして、本機に対して作業装置を連結している状
態において、本機の後傾姿勢によりフロートの後部が大
なる対地反力を受けた場合には、ロック機構(B)のフ
ック(17)が長孔(20)を介して更に伸長して、吊
り下げフック(10)を支点にして作業装置が上方に回
動することとなる。When the lock is released, when the grip section (18) is rotated from the state shown in FIG. 1 as shown by the solid line in FIG.
However, the contact part (
17a), the bias of the spring (21) is first weakened, and then further rotation of the grip (18) causes the hook (17) to move against the lock pin (15). The engagement is configured to be released. If the rear of the float receives a large ground reaction force due to the backward tilting position of the machine while the work equipment is connected to the machine, the hook (17) of the locking mechanism (B) further extends through the elongated hole (20), and the working device rotates upward using the hanging hook (10) as a fulcrum.
尚、図中(23)は仮バネをコの字型に折り曲げて構成
したレバー係止具である。In addition, (23) in the figure is a lever locking tool constructed by bending a temporary spring into a U-shape.
前記ロック機構(B)を構成するに当り、第6図に示す
如く、フック(17)を腰折れ可能に構成し、そして、
巻バネ(21)によりフック(17)を腰折れ方向に引
き寄せて連結すべく構成しても良い。In constructing the locking mechanism (B), the hook (17) is configured to be foldable as shown in FIG. 6, and
The hooks (17) may be connected by being pulled together in the bending direction by the coiled springs (21).
図面は本発明に係る作業機の連結構造の実施例を示し、
第1図はリンク機構とブラケットと連結状態を示す一部
切欠き側面図、第2図はロック機構の分解斜視図、第3
図は田植機の全体側面図、第4図及び第5図はロック機
構の作動状態を示す側面図、第6図は別の実施例を示す
要部の側面図である。
(5)・・・・・・昇降リンク機構、(10)・・・・
・・吊下げフック、(11)・・・・・・ブラケット、
(11A)・・・・・・係合孔、(15)・・・・・・
ロックピン、(17)・・・・・・フック、(21)・
・・・・・スプリング、(B)・・・・・・ロック機構
。The drawings show an embodiment of the working machine connection structure according to the present invention,
Fig. 1 is a partially cutaway side view showing the link mechanism and bracket in a connected state, Fig. 2 is an exploded perspective view of the locking mechanism, and Fig. 3
The figure is an overall side view of the rice transplanter, FIGS. 4 and 5 are side views showing the operating state of the locking mechanism, and FIG. 6 is a side view of main parts showing another embodiment. (5)... Lifting link mechanism, (10)...
...hanging hook, (11)...bracket,
(11A)...Engagement hole, (15)...
Lock pin, (17)...Hook, (21).
...Spring, (B) ...Lock mechanism.
Claims (1)
ット(11)との連結部位の一方に、相手方に向かって
突出する吊下げフック(10)と、他方に、前記吊下げ
フック(10)に係合可能な係合孔(11A)を設けて
、本機側昇降リンク機構(5)と作業装置側ブラケット
(11)を係脱自在に構成し、さらに、前記本機側昇降
リンク機構(5)と作業装置側ブラケット(11)とを
、本機側昇降リンク機構(5)に対して作業装置側ブラ
ケット(11)を弾性的に引き寄せた状態で固定連結す
るロック機構(B)を設けてある作業機の連結構造。 [2]前記ロック機構(B)が、フック(17)とロッ
クピン(15)とからなり、且つ、フック(17)が腰
折れ可能に構成され、さらに、腰折れ方向にスプリング
(21)付勢されてなるものである特許請求の範囲第[
1]項に記載の作業機の連結構造。[Claims] [1] A hanging hook (10) that protrudes toward the other side is provided on one side of the connecting portion between the machine side lifting link mechanism (5) and the working device side bracket (11), and the other side is provided with a hanging hook (10) that protrudes toward the other side. , an engagement hole (11A) that can be engaged with the hanging hook (10) is provided so that the machine-side lifting link mechanism (5) and the working device-side bracket (11) can be freely engaged and detached; The machine side lifting link mechanism (5) and the working equipment side bracket (11) are fixedly connected with the working equipment side bracket (11) being elastically drawn to the main machine side lifting link mechanism (5). A working machine connection structure provided with a locking mechanism (B). [2] The locking mechanism (B) is composed of a hook (17) and a lock pin (15), and the hook (17) is configured to be bendable, and is further biased by a spring (21) in the bending direction. The scope of claim No. [
1] Connection structure of the work machine described in item 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21976885A JPS6279703A (en) | 1985-10-02 | 1985-10-02 | Hitch structure of working machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21976885A JPS6279703A (en) | 1985-10-02 | 1985-10-02 | Hitch structure of working machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6279703A true JPS6279703A (en) | 1987-04-13 |
JPH0474963B2 JPH0474963B2 (en) | 1992-11-27 |
Family
ID=16740699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21976885A Granted JPS6279703A (en) | 1985-10-02 | 1985-10-02 | Hitch structure of working machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6279703A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02238804A (en) * | 1989-03-13 | 1990-09-21 | Mitsubishi Agricult Mach Co Ltd | Linking mechanism of farm working machine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4934482U (en) * | 1972-06-26 | 1974-03-26 | ||
JPS5255367U (en) * | 1975-10-16 | 1977-04-21 | ||
JPS59187923U (en) * | 1983-06-02 | 1984-12-13 | 株式会社クボタ | rice transplanter |
-
1985
- 1985-10-02 JP JP21976885A patent/JPS6279703A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4934482U (en) * | 1972-06-26 | 1974-03-26 | ||
JPS5255367U (en) * | 1975-10-16 | 1977-04-21 | ||
JPS59187923U (en) * | 1983-06-02 | 1984-12-13 | 株式会社クボタ | rice transplanter |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02238804A (en) * | 1989-03-13 | 1990-09-21 | Mitsubishi Agricult Mach Co Ltd | Linking mechanism of farm working machine |
Also Published As
Publication number | Publication date |
---|---|
JPH0474963B2 (en) | 1992-11-27 |
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