JPS63230001A - Hitch apparatus of tractor and working machine - Google Patents
Hitch apparatus of tractor and working machineInfo
- Publication number
- JPS63230001A JPS63230001A JP6665687A JP6665687A JPS63230001A JP S63230001 A JPS63230001 A JP S63230001A JP 6665687 A JP6665687 A JP 6665687A JP 6665687 A JP6665687 A JP 6665687A JP S63230001 A JPS63230001 A JP S63230001A
- Authority
- JP
- Japan
- Prior art keywords
- tractor
- working machine
- shaft
- equipment
- guide
- 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
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003971 tillage Methods 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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、トラクタと作業機の連結装置に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a coupling device for a tractor and a working machine.
(従来の技術)
中央1本のトップリンクと左右一対のロアリンクとから
成る3点リンク機構を介して、トラクタ後方にロ〒タリ
耕耘装置を昇降自在で且つ着脱自在に連結すると共に、
トラクタのPTO軸と耕耘装置の入力軸とを伸縮自在な
伝動軸と、伝動軸の両端部に備えられた自在継手とを介
して解除自在に連結する場合において、上記再連結作業
を容易に行えるようにする技術が、特開昭58−216
605号公報に開示されている。(Prior art) A rotary tiller is connected to the rear of a tractor in a movable and detachable manner via a three-point linkage mechanism consisting of a top link in the center and a pair of lower links on the left and right sides, and
When the PTO shaft of the tractor and the input shaft of the tilling device are releasably connected via a telescopic transmission shaft and universal joints provided at both ends of the transmission shaft, the reconnection work described above can be easily performed. The technology to do this was published in Japanese Patent Application Laid-Open No. 58-216.
It is disclosed in Japanese Patent No. 605.
上記のものでは、トップリンクと両ロアリンクの夫々の
耕耘装置側端部が連結体により連結され、連結体は、ト
ラクタの後進時に耕耘装置の左右方向中央部の上部と左
右両側部が係脱自在に係合される係合部を有し、連結体
に耕耘装置側自在継手と入力軸とを解除自在に連結する
クラッチ装置が備えられている。In the above, the tilling device side ends of the top link and both lower links are connected by a connecting body, and the connecting body is such that when the tractor moves backward, the upper part of the left and right center part of the tilling device and the right and left sides are engaged and disengaged. The coupling body is provided with a clutch device that has an engaging portion that can be freely engaged and that releasably connects the tilling device side universal joint and the input shaft.
上記クラッチ装置は、連結体に前後方向に配設された左
右一対のガイドレールと、このガイドレールに前後方向
に移動自在に備えられ且つ耕耘装置側自在継手を支持す
る装備筒と、装備筒を軸心方向に操作する操作装置とを
有する。The clutch device includes a pair of left and right guide rails disposed in the front-rear direction on the coupling body, an equipment tube that is movably provided on the guide rails in the front-rear direction and supports a universal joint on the tilling device side, and an equipment tube. It has an operating device that operates in the axial direction.
そして、トラクタと耕耘装置の連結時には、連結体の係
合部に耕耘装置を係合した後、操作装置により、装備筒
を耕耘装置側に移動させることによって、耕耘装置側自
在継手と入力軸とを連結させる。When the tractor and the tilling device are connected, after the tilling device is engaged with the engaging portion of the coupling body, the operating device moves the equipment cylinder toward the tilling device, thereby connecting the tilling device side universal joint and the input shaft. to connect.
(発明が解決しようとする問題点)
ところで、上記従来においては、クラッチ装置には、耕
耘装置側自在継手と入力軸との上下方向に関する芯ずれ
を吸収する手段が備えられておらず、耕耘装置自在継手
と入力軸の連結が困難なものとなっていた。(Problems to be Solved by the Invention) In the above-mentioned conventional clutch device, the clutch device is not equipped with a means for absorbing misalignment in the vertical direction between the universal joint on the tilling device side and the input shaft. The connection between the universal joint and the input shaft has been difficult.
(問題点を解決するための手段)
上記問題点を解決すべく、中央1本のトノプリンタ10
と左右一対のロアリンク11とから成る3点リンク機構
9を介して、トラクタ1に作業機Rを着脱自在に連結し
、両ロアリンク11を昇降装置3により昇降自在とし、
トラクタl0PTO軸7と作業機Rの入力軸25とを、
伸縮自在な伝動軸40と、伝動軸40の両端部に配設さ
れた一対の自在継手41゜42を介して解除自在に連結
したものにおいて、トップリンク10と両ロアリンク1
1の夫々の作業機側端部が連結体14により連結され、
連結体14は、連結体14の上昇時に作業機Rの左右方
向中央部の上部と左右両側部が係脱自在に係合される係
合部21.22を有し、作業機Rの係合部21.22か
らの離脱を解除自在に阻止する阻止装置85と、クラッ
チ装置24とが備えられ、クラッチ装置24は、連結体
14に略前後方向に配設されたガイド26と、略前後方
向の軸心を有し、且つガイド26に摺動部材30を介し
て略前後方向に摺動自在に備えられた装備筒27と、装
備筒27内に支持された作業機側自在継手42と、装備
筒27を軸心方向に移動させてトラクタ側保持位置と作
業機側保持位置とに位置変更自在とする操作装置28と
を有し、摺動部材30は、前後方向に関して、装備筒2
7よりもトラクタ1側に位置し、摺動部材30は、ガイ
ド26に対して装備筒27を上下方向に平行移動自在で
且つ首振り自在に保持させる弾性部材39を有し、連結
体14の係合部21゜22に作業機Rが係合した後、操
作装置28により、装備筒27がトラクタ側保持位置か
ら作業機側保持位置に位置変更せしめられることにより
、作業機側自在継手42が入力軸25に解除自在に連結
される点にある。(Means for solving the problem) In order to solve the above problem, the central tonneau printer 10
A working machine R is removably connected to the tractor 1 via a three-point linkage mechanism 9 consisting of a pair of left and right lower links 11, and both lower links 11 can be raised and lowered by a lifting device 3,
The tractor l0 PTO shaft 7 and the input shaft 25 of the working machine R are
A telescopic transmission shaft 40 is releasably connected via a pair of universal joints 41 and 42 provided at both ends of the transmission shaft 40, in which a top link 10 and both lower links 1 are connected.
1 are connected to each other by a connecting body 14,
The connecting body 14 has engaging portions 21 and 22 that are removably engaged with the upper part of the center portion in the left and right direction of the working machine R and both left and right sides when the connecting body 14 is raised. A blocking device 85 for releasably preventing separation from the portions 21 and 22, and a clutch device 24 are provided. an equipment cylinder 27 having an axis center and slidably provided in the guide 26 in a substantially front-back direction via a sliding member 30; a working machine side universal joint 42 supported within the equipment cylinder 27; It has an operating device 28 that moves the equipment cylinder 27 in the axial direction and can freely change the position between a tractor-side holding position and a working machine-side holding position, and the sliding member 30 moves the equipment cylinder 27 in the longitudinal direction.
The sliding member 30 is located closer to the tractor 1 than the connecting body 14 , and has an elastic member 39 that allows the equipment cylinder 27 to be vertically movable and swingably held relative to the guide 26 . After the work implement R engages with the engaging portions 21 and 22, the operating device 28 causes the equipment cylinder 27 to change its position from the tractor side holding position to the work implement side holding position, thereby moving the work implement side universal joint 42. It is at the point where it is releasably connected to the input shaft 25.
(作 用)
トラクタ1への作業機Rの連結時には、連結体14の昇
降装置3による上昇により、連結体14の上・下係合部
21.222に作業機Rが係合して、阻止装置85によ
り、連結体14の上・下係合部21.22からの離脱が
阻止される。(Function) When the work implement R is connected to the tractor 1, the work implement R engages with the upper and lower engaging portions 21 and 222 of the connective body 14 as the connecting body 14 is raised by the lifting device 3, and is blocked. The device 85 prevents the coupling body 14 from disengaging from the upper and lower engagement parts 21,22.
次に、クラッチ装置24において、操作装置28により
、装備筒27がトラクタ側保持位置から作業機側保持位
置に位置変更せしめられることにより、PTO軸7と連
動する連結軸46が作業機Rの入力軸25と連結される
。Next, in the clutch device 24, the operating device 28 changes the position of the equipment tube 27 from the tractor side holding position to the work machine side holding position, so that the connecting shaft 46 interlocking with the PTO shaft 7 is connected to the input shaft of the work machine R. It is connected to the shaft 25.
この際、連結軸46と入力軸25の上下方向に関する芯
ずれは、摺動部材30の弾性部材39の弾性変形により
吸収される。At this time, misalignment between the connecting shaft 46 and the input shaft 25 in the vertical direction is absorbed by elastic deformation of the elastic member 39 of the sliding member 30.
(実施例)
以下、本発明の第1実施例を第1図乃至第6図の図面に
基づき説明すれば、第3図において、1はトラクタ、2
はトラクタ車体、3はトラクタ車体2の後部に搭載され
た昇降装置として例示する作業機昇降用油圧装置で、左
右一対のリフトアーム4を有する。5は座席、6は後輪
、7はPTO軸で、車体2後端から後方に突出している
。(Embodiment) Hereinafter, a first embodiment of the present invention will be described based on the drawings of FIGS. 1 to 6. In FIG. 3, 1 is a tractor, 2 is
Reference numeral 3 denotes a hydraulic device for lifting and lowering a working machine, which is exemplified as a lifting device mounted on the rear of the tractor body 2, and has a pair of left and right lift arms 4. 5 is a seat, 6 is a rear wheel, and 7 is a PTO shaft, which protrudes rearward from the rear end of the vehicle body 2.
Rは作業機として例示するサイドドライブ式ロータリ耕
耘装置で、トラクタ1の後方に、3点リンク機構9を介
して昇降自在で且つ着脱自在に連結されている。R is a side drive type rotary tilling device exemplified as a working machine, which is connected to the rear of the tractor 1 via a three-point link mechanism 9 so as to be movable up and down and detachable.
3点リンク機構9は、中央1本のトップリンク10と左
右一対のロアリンク11とから成り、各ロアリンク11
と各リフトアーム4とが夫々リフトロンド12により連
結されている。The three-point link mechanism 9 consists of a top link 10 in the center and a pair of left and right lower links 11.
and each lift arm 4 are connected by a lift iron 12, respectively.
第1図、第2図及び第4図に示すように、14は連結体
で、トップリンク10と両ロアリンク11の夫々の作業
機側端部、即ち、後端部を連結するもので、上方に突出
する正面視門形状とされた円筒状車体15と、車体15
の左右両側部の上下方向中途部間に渡設された渡設材1
6と、本体15の左右方向中央部の上端部から上方に突
設された左右一対の上側板17と、車体15の左右両側
部の下端部から後方に突設された左右一対宛の下側板1
8と、車体15の左右両側部の下端部と下側板18に左
右方向に挿着された左右一対の連結ピン19等を有する
。As shown in FIGS. 1, 2, and 4, 14 is a connecting body that connects the working machine side ends, that is, the rear ends of the top link 10 and both lower links 11, A cylindrical vehicle body 15 having a front view gate shape projecting upward, and a vehicle body 15
A crossing material 1 installed between the vertical midway point on both left and right sides of
6, a pair of left and right upper plates 17 protruding upward from the upper end of the left-right central portion of the main body 15, and a pair of left and right lower plates protruding rearward from the lower ends of both left and right sides of the vehicle body 15. 1
8, and a pair of left and right connecting pins 19 inserted into the lower end portions of the left and right sides of the vehicle body 15 and the lower plate 18 in the left and right direction.
左右の上側板17の前部間には、トップリンク10の後
端の球継手部が取付ピン20により着脱自在に連結され
ている。雨上側板17の後部には、上方斜め後方に向っ
て開口する上係合部21が切欠形成されている。A ball joint portion at the rear end of the top link 10 is removably connected between the front portions of the left and right upper plates 17 by a mounting pin 20. A notch is formed in the rear part of the rain upper side plate 17 to form an upper engaging part 21 that opens diagonally upward and rearward.
各下側板18には、後方斜め下方に向って開口する下係
合部22が切欠形成されている。Each lower plate 18 is provided with a cutout portion 22 that opens obliquely downward toward the rear.
各連結ピン19の内側部には各ロアリンク11の後端部
が着脱自在に備えられている。A rear end portion of each lower link 11 is detachably provided on the inner side of each connecting pin 19.
24はクラッチ装置で、トラクタ1のPTO軸7と耕耘
装置Rの入力軸25とを解除自在に連結するものであっ
て、連結体14の左右方向中央部の下方側に位置し、第
5図及び第6図にも示すように、左右一対のガイド16
と、装備筒27と、装備筒27の操作装置28等を有す
る。Reference numeral 24 denotes a clutch device that releasably connects the PTO shaft 7 of the tractor 1 and the input shaft 25 of the tilling device R, and is located below the center portion in the left-right direction of the coupling body 14, as shown in FIG. And as shown in FIG. 6, a pair of left and right guides 16
, an equipment tube 27 , and an operating device 28 for the equipment tube 27 .
両ガイド26は渡設材16の左右方向中央部の下方で略
前後方向に配設されるもので、渡設材16下面にブラケ
ット29を介して取付けられている。各ガイド26の断
面形状は、内側方に開口する二型状とされ、各ガイド2
6は、天壁部と、底壁部と、側壁部とを有している。Both guides 26 are disposed substantially in the front-rear direction below the center portion of the crossing material 16 in the left-right direction, and are attached to the lower surface of the crossing material 16 via a bracket 29. The cross-sectional shape of each guide 26 is bi-shaped with an opening inward.
6 has a top wall, a bottom wall, and a side wall.
装備筒27は、略前後方向の軸心を有し、両ガイド26
間に配置されると共に、両ガイド26に摺動部材30を
介して軸心方向に摺動自在に備えられている。装備筒2
7の左右両側部の下部からは左右一対の支持材31が前
方に突設されている。また装備筒27の後面上部の左右
方向中央部からは立設板32が立設され、立設板32か
らは位置決めピン33が後方に突設されて、該ピン33
の後端部は円錐台形状とされている。The equipment tube 27 has an axis extending approximately in the front-rear direction, and both guides 26
It is disposed between the two guides 26 and is slidably provided on both guides 26 via a sliding member 30 in the axial direction. Equipment tube 2
A pair of left and right support members 31 protrude forward from the lower portions of both left and right sides of the support member 7 . Further, an upright plate 32 is erected from the center in the left and right direction of the upper rear surface of the equipment tube 27, and a positioning pin 33 is provided rearwardly to protrude from the upright plate 32.
The rear end is shaped like a truncated cone.
各ガイド26内には、摺動部材30が前後方向に複数、
実施例では、前後一対配設されており、摺動部材30は
、前後方向に関して、装備筒27よりも前方、即ち、ト
ラクタl側に離間している。Inside each guide 26, there are a plurality of sliding members 30 in the front and back direction.
In the embodiment, a pair of front and rear members are provided, and the sliding member 30 is spaced further forward than the equipment tube 27, that is, toward the tractor I side in the front-rear direction.
各摺動部材30は、支持材31の左右方向の支軸34に
より揺動自在に枢支された揺動アーム35と、支軸34
に枢支されてガイド26の底壁部上を転勤する下槽動部
として例示する下ローラ36と、揺動アーム35上端部
に左右方向の支軸37により枢支され且つガイド26の
天壁部上を転勤する上槽動部として例示する上ローラ3
8とを有する。Each sliding member 30 includes a swing arm 35 that is swingably supported by a support shaft 34 in the left and right direction of the support member 31, and
A lower roller 36, which is illustrated as a lower tank moving part, is pivoted to the upper end of the swinging arm 35 and moves on the bottom wall of the guide 26, and Upper roller 3 exemplified as an upper tank moving part for transferring superiors
8.
各摺動部材30の支軸34廻りの揺動により、装備筒2
7は上方に平行移動自在とされると共に、上下方向に首
振り自在とされている。Due to the swinging of each sliding member 30 around the support shaft 34, the equipment tube 2
7 is configured to be able to move upward in parallel and swing freely in the vertical direction.
ところで、各ガイド26内において、前側摺動部材30
は前傾状とされ、後側摺動部材3oは後傾状とされてお
り、前後の両槽動部材30の揺動アーム35間に、コイ
ルバネにて例示する弾性部材39が弾引状に介装される
ことで、各摺動部材30が自立して各摺動部材30の上
・下部ローラ38,36がガイド26の天壁部と底壁部
に夫々接当するようにされ、これにより、装備筒27が
ガイド26に対して所定姿勢を維持するようにされてい
る。By the way, within each guide 26, the front sliding member 30
is tilted forward, the rear sliding member 3o is tilted backward, and an elastic member 39, exemplified by a coil spring, is elastically disposed between the swinging arms 35 of both the front and rear tank moving members 30. By being interposed, each sliding member 30 becomes independent, and the upper and lower rollers 38 and 36 of each sliding member 30 contact the top wall and bottom wall of the guide 26, respectively. This allows the equipment cylinder 27 to maintain a predetermined attitude with respect to the guide 26.
ところで、トラクタ1のPTO軸7と、耕耘装置Rの入
力軸25とは、伝動軸40と、伝動軸40の両端部に備
えられた前・後自在継手41.42とを介して、解除自
在に連動連結されている。By the way, the PTO shaft 7 of the tractor 1 and the input shaft 25 of the tilling device R are releasable via a power transmission shaft 40 and front and rear universal joints 41 and 42 provided at both ends of the power transmission shaft 40. is linked to.
伝動軸40は、その前部側を構成する軸体43と、その
後部側を構成して軸体43に摺動自在にスプライン結合
された筒体44とから成り、伸縮自在とされている。The transmission shaft 40 is made up of a shaft body 43 constituting its front side and a cylindrical body 44 constituting its rear side and slidably splined to the shaft body 43, and is expandable and retractable.
後自在継手42は、前・後ヨーク45.46と、両ヨー
ク45.46を連結するスパイダ47とから成り、前ヨ
ーク45は伝動軸40の筒体44に解除自在に連結され
ている。The rear universal joint 42 consists of front and rear yokes 45, 46, and a spider 47 that connects both yokes 45, 46, and the front yoke 45 is releasably connected to the cylindrical body 44 of the transmission shaft 40.
後ヨーク46は、入力軸25に解除自在に連結される連
結軸とされるもので、後ヨーク46の後部が装備筒27
に軸受48を介して支持されている。後ヨーク46の後
部内面には、入力軸25の雄スプライン部49と嵌脱自
在にスプライン嵌合される雌スプライン部50が形成さ
れている。尚、後ヨーク46の後端部内面には、前方に
向ってテーパ状とされたテーパ面51が形成されている
。The rear yoke 46 is a connecting shaft that is releasably connected to the input shaft 25, and the rear part of the rear yoke 46 is connected to the equipment tube 27.
is supported via a bearing 48. A female spline portion 50 is formed on the rear inner surface of the rear yoke 46 and is removably spline-fitted to the male spline portion 49 of the input shaft 25 . Note that a tapered surface 51 tapered toward the front is formed on the inner surface of the rear end portion of the rear yoke 46.
装備筒27の操作装置2日は、装備筒27を軸心方向に
移動させて、数個の保持位置に位置変更保持自在とする
もので、支軸52と、左右一対の連動レバー53と、左
右一対の連動リンク54と、操作レバー55と、ロック
板56と、ロックピン57と、弾機58等を有する。The second operating device for the equipment tube 27 moves the equipment tube 27 in the axial direction so that it can be freely changed and held in several holding positions, and includes a support shaft 52, a pair of left and right interlocking levers 53, It includes a pair of left and right interlocking links 54, an operating lever 55, a lock plate 56, a lock pin 57, a bullet 58, and the like.
支軸52は渡設材16の前方に左右方向に配設されて、
渡設材16に左右一対の突設板59を介して回動自在に
備えられている。The support shaft 52 is disposed in the left-right direction in front of the crossing material 16,
It is rotatably provided on the crossing member 16 via a pair of left and right projecting plates 59.
左右の再連動レバー53は支軸52の左右両側部に固設
されて、下役され、正面視において、装備筒27の左右
両側部の上部の両側方に位置する。The left and right re-interlocking levers 53 are fixed to the left and right sides of the support shaft 52 and serve as servants, and are located on both sides of the upper part of the left and right sides of the equipment cylinder 27 when viewed from the front.
再連動リンク54は両ガイド26の上部にその内側方で
長手方向に沿設状とされ、前端部が連動レバー53に枢
結されると共に、後端部が装備筒27の左右両側部の上
部に枢結されている。The re-interlocking link 54 extends longitudinally inside the upper part of both guides 26, and has a front end pivotally connected to the interlocking lever 53, and a rear end connected to the upper part of the left and right sides of the equipment cylinder 27. It is pivotally connected to.
再連動リンク54の後部には、凹型状のカバー60が固
設され、該カバー60により、後自在継手42の装備筒
27から前方に突出した部分と、耕耘装置Rの入力軸2
5の露出部分が覆被される。A concave cover 60 is fixed to the rear of the re-interlocking link 54, and the cover 60 protects the portion of the rear universal joint 42 that protrudes forward from the equipment tube 27 and the input shaft 2 of the tilling device R.
The exposed parts of 5 are covered.
操作レバー55はL型状とされ、支軸52の右側部に固
設されて、立設されている。The operating lever 55 is L-shaped, and is fixed to the right side of the support shaft 52 and stands upright.
ロック板56は右側突設板59から立設され、上端部に
、上方に弯曲突状とされたロック部61を有し、ロック
部61には、数個のロック孔62が周方向等間隔に形成
されている。The lock plate 56 is erected from the right side projecting plate 59, and has a lock part 61 in an upwardly curved shape at its upper end. Several lock holes 62 are formed in the lock part 61 at equal intervals in the circumferential direction. is formed.
ロックピン57はL型状とされt1操作レバー55にそ
の右側方で沿設状とされ、操作レバー55に固設された
コ型状案内材63に軸心方向に移動自在に挿通されると
共に、ロックピン57には、操作レバー55を挟持状と
してロックピン57の回動を阻止するU型状案内片64
が固着されている。The lock pin 57 is L-shaped and extends along the right side of the t1 operating lever 55, and is inserted into a U-shaped guide member 63 fixed to the operating lever 55 so as to be movable in the axial direction. The lock pin 57 is provided with a U-shaped guide piece 64 that holds the operating lever 55 and prevents the lock pin 57 from rotating.
is fixed.
ロックピン57は所望のロック孔62に挿脱自在に挿通
されるもので、その案内材63にある部分には、バネ受
は片65が外嵌され、バネ受は片65の下方への移動は
ビン66により阻止されている。The lock pin 57 is inserted into and removed from a desired lock hole 62, and a spring holder piece 65 is fitted onto the guide member 63, and the spring holder moves downward from the spring holder piece 65. is blocked by bin 66.
弾機58は、ロックピン57における案内材63の天壁
部とバネ受は片65間に弾発状に捲周され、ロックピン
57をロック部61側に付勢している。In the ammunition device 58, the top wall portion of the guide member 63 and the spring receiver of the lock pin 57 are wound around the pieces 65 in a resilient manner, thereby urging the lock pin 57 toward the lock portion 61 side.
耕耘装置Rは、前部上部の左右方向中央部に位置する入
力ケース68と、入力ケース68から前方斜め上方に突
設され、且つ左右一対の側板がら成るトップマスト69
と、入力ケース68から左右両側方に突設された一対の
サポートアーム7oと、各サポートアーム70の左右方
向中途部から前方に突設された左右一対のブラケット7
1と、左右一対の前ゲージ輪72と、トップマスト69
の各側板上端部と各ブラケット71とを連結する左右一
対のサポートリンク73と、各サポートアーム70の外
側端部から夫々下段された伝動ケース74及びサイドプ
レートと、伝動ケース74及びサイドプレートの下端部
間に横架されて回転駆動され且つ耕耘軸とこれに備えら
れた多数の耕耘爪とから成る耕耘部75と、耕耘部75
を覆被する耕耘カバー76等を有する。The tilling device R includes an input case 68 located at the center of the upper front part in the left-right direction, and a top mast 69 that projects obliquely forward and upward from the input case 68 and consists of a pair of left and right side plates.
, a pair of support arms 7o protruding from the input case 68 in the left and right sides, and a pair of left and right brackets 7 protruding forward from the middle part of each support arm 70 in the left and right direction.
1, a pair of left and right front gauge wheels 72, and a top mast 69
A pair of left and right support links 73 connecting the upper end of each side plate and each bracket 71, a transmission case 74 and a side plate lowered from the outer end of each support arm 70, and a lower end of the transmission case 74 and side plate. A tilling section 75 which is horizontally suspended between sections and is rotationally driven, and which is composed of a tilling shaft and a large number of tilling claws provided on the tilling shaft;
It has a tillage cover 76 etc. that covers the tillage cover 76 and the like.
入力ケース68には、前方に突出する入力軸25が支持
されると共に、入力ケース68の前面には、位置決めピ
ン33が挿入係合されるピン受は体77が前方突出状に
固設され、上記係合により、後自在継手42の後ヨーク
46と入力軸25との軸心が対応合致せしめられる。ピ
ン受は体77の前部にはテーパ孔78が形成され、後部
は外側方に開口状とされると共に、ストッパ84が備え
られている。The input case 68 supports the input shaft 25 that projects forward, and a pin receiver body 77 into which the positioning pin 33 is inserted and engaged is fixed to the front surface of the input case 68 so as to project forward. By the above engagement, the axes of the rear yoke 46 of the rear universal joint 42 and the input shaft 25 are made to correspond to each other. The pin receiver has a tapered hole 78 formed in the front part of the body 77, and is opened outward at the rear part, and is provided with a stopper 84.
トップマスト69の両側板前端部間には上連結軸79が
渡設され、この上連結軸79に連結体14の上係合部2
1が下方側から係脱自在に係合される。An upper connecting shaft 79 is provided between the front ends of both side plates of the top mast 69, and the upper engaging portion 2 of the connecting body 14 is connected to this upper connecting shaft 79.
1 is removably engaged from the lower side.
各ブラケット71の前端部には各下連結軸80が左右方
向に夫々挿着され、各下連結軸80の内側部が各下係合
部22に後方から係脱自在に係合される。Each lower connecting shaft 80 is inserted into the front end of each bracket 71 in the left-right direction, and the inner side of each lower connecting shaft 80 is removably engaged with each lower engaging portion 22 from the rear.
各ブラケット71の前部外側面には、円形取付部81を
介して保持筒82が縦設され、保持筒82に前ゲージ輸
72のステイ83が上下方向に移動調整自在に挿通され
ている。A holding tube 82 is vertically installed on the front outer surface of each bracket 71 via a circular mounting portion 81, and a stay 83 of the front gauge tube 72 is inserted through the holding tube 82 so as to be movable and adjustable in the vertical direction.
85は左右一対の阻止装置で、連結体14の左右両側部
の下部に備えられて、各下連結軸80の各下係合部22
内からの離脱を解除自在に阻止するもので、ロックプレ
ート86と、操作ピン87と、弾機88等を有する。Reference numeral 85 denotes a pair of left and right blocking devices, which are provided at the lower portions of both left and right sides of the connecting body 14, and are installed at the lower portions of both left and right sides of the connecting body 14, and are connected to each lower engaging portion 22 of each lower connecting shaft 80.
It releasably prevents separation from the inside, and includes a lock plate 86, an operating pin 87, a bullet 88, and the like.
ロックプレート86は、各連結ピン19の外側部に揺動
自在に枢支され、各下連結軸80に下方から係脱自在に
係合する。ロックプレート86の後端部には、前上りの
傾斜状とされたカム面89が形成されている。The lock plate 86 is swingably supported on the outer side of each connecting pin 19, and is removably engaged with each lower connecting shaft 80 from below. A cam surface 89 is formed at the rear end of the lock plate 86 and has an upwardly inclined cam surface 89 .
操作ピン87は、連結体14の本体15の左右両側部の
下部に固設されたコ型状案内材90に上下方向に移動自
在に挿通され、その下部に固設された二叉状連結片91
がロックプレート86前端部に遊嵌されて、ピン92に
より連結されている。尚、連結片91がロックプレート
86に遊嵌されていることから、操作ピン87は軸心廻
りに若干回動可能とされている。The operating pin 87 is vertically movably inserted into a U-shaped guide member 90 that is fixed to the lower part of the left and right sides of the main body 15 of the connecting body 14, and is connected to a bifurcated connecting piece fixed to the lower part of the U-shaped guide member 90. 91
is loosely fitted to the front end of the lock plate 86 and connected by a pin 92. Note that since the connecting piece 91 is loosely fitted to the lock plate 86, the operating pin 87 can be rotated slightly around the axis.
操作ビン87の上端部には、コ型状に引掛片93が固設
され、この引掛片93の下部が、案内材90に立設され
た受板94上端面に係脱自在に係合されることにより、
ロックプレート86は、第1図及び第2図に示す位置よ
りも下方に回動した位置であるロック解除位置に保持さ
れ、この状態では、下連結軸80の下係合部22からの
離脱は許容される。A U-shaped hook piece 93 is fixed to the upper end of the operating bin 87, and the lower part of the hook piece 93 is removably engaged with the upper end surface of a receiving plate 94 provided upright on the guide member 90. By doing so,
The lock plate 86 is held at the unlocked position, which is a position rotated downward from the position shown in FIGS. Permissible.
操作ビン87の案内板90内にある部分には、バネ受は
片95が外嵌されて、バネ受は片95の下方への移動が
ピン96により阻止されている。A spring receiver piece 95 is fitted onto a portion of the operating bin 87 within the guide plate 90, and a pin 96 prevents the spring receiver piece 95 from moving downward.
弾機88は、操作ピン87における案内材90の天壁部
とバネ受は片95間に弾発状に捲周されている。In the ammunition device 88, the top wall portion of the guide member 90 and the spring receiver of the operating pin 87 are wound around the spring rest between the pieces 95.
上記のように構成した実施例によれば、トラクタ1に耕
耘装fiRを連結する際には、クラッチ装置24におい
ては、第2図に示すように、装備筒27を、例えば、最
も前方側に移動させたトラクタ側保持位置に保持してお
(。この状態では、装備筒27は、前後方向に関して、
ガイド26の後部と対応位置している。According to the embodiment configured as described above, when connecting the tilling equipment fiR to the tractor 1, the clutch device 24 moves the equipment tube 27 to the frontmost side, for example, as shown in FIG. It is held in the moved tractor side holding position (In this state, the equipment tube 27 is
It is located at a position corresponding to the rear part of the guide 26.
又、各阻止装置85において、ピン96が案内材90の
底壁部に当った状態として、ロックプレート86の揺動
を可能な状態としておく。Further, in each blocking device 85, the pin 96 is placed in contact with the bottom wall portion of the guide member 90, so that the lock plate 86 is allowed to swing.
一方、耕耘装置Rを、地面に載置して、第2図に示すよ
うに、若干前傾姿勢としておく。On the other hand, the tilling device R is placed on the ground and is slightly tilted forward as shown in FIG.
この状態で、トラクタ1を後進させて、耕耘装置Rに接
近させ、第2図に示すように、耕耘装置Rの上・下部連
結軸79.80の前方斜め下方側に、連結体14の上・
下部係合部21.22を夫々位置させる。In this state, the tractor 1 is moved backward to approach the tiller R, and as shown in FIG.・
The lower engaging portions 21, 22 are located respectively.
次に、3点リンク機構9、連結体14及びクラッチ装置
24を油圧装置3により徐々に上昇させて、まず、連結
体14の上係合部21内に上連結軸79を係合させるの
であり、この状態では、各下係合部22は各下連結軸8
0の前方側に位置している。Next, the three-point link mechanism 9, the connecting body 14, and the clutch device 24 are gradually raised by the hydraulic device 3, and the upper connecting shaft 79 is first engaged in the upper engaging portion 21 of the connecting body 14. , in this state, each lower engaging portion 22 is connected to each lower connecting shaft 8
It is located in front of 0.
そして、更に、3点リンク機構9、連結体14及びクラ
ッチ装置24を更に上昇させれば、連結体14の上係合
部21内に上連結軸79が係合していることから、上記
3点リンク機構9等の上昇により、耕耘装置Rは持上げ
られ乍ら上連結軸79廻りにトラクタ1側、即ち、前方
側に回動せしめられる。Then, if the three-point linkage mechanism 9, the connecting body 14, and the clutch device 24 are further raised, the upper connecting shaft 79 is engaged in the upper engaging portion 21 of the connecting body 14. As the point linkage mechanism 9 and the like rise, the tilling device R is lifted and rotated around the upper connecting shaft 79 toward the tractor 1, that is, toward the front.
これにより、各下連結軸80は各下係合部22内に後方
から係合し乍ら、ロックプレート86のカム面89に接
当する。As a result, each lower connecting shaft 80 engages into each lower engaging portion 22 from the rear and comes into contact with the cam surface 89 of the lock plate 86.
これによって、弾機88が圧縮されると共に、ロックプ
レート86が下方に回動して、下連結軸80は下係合部
22内の奥まで係合し、その後、ロックプレート86が
弾機88の弾発力により上方に揺動して、下連結軸80
と係合し、下連結軸80の下係合部22からの離脱を阻
止する。As a result, the ammunition 88 is compressed, the lock plate 86 rotates downward, and the lower connecting shaft 80 is engaged deep inside the lower engagement part 22, and then the lock plate 86 The lower connecting shaft 80 swings upward due to the elastic force of
, and prevents the lower connecting shaft 80 from disengaging from the lower engaging portion 22 .
ところで、連結体14の上・下係合部2L22に耕耘装
置Rの上・下連結軸79.80が係合した状態では、後
自在継手42の後ヨーク46と、耕耘装置Rの入力軸2
5とが前後に対向状とされている。By the way, in a state where the upper and lower connecting shafts 79 and 80 of the tilling device R are engaged with the upper and lower engaging portions 2L22 of the connecting body 14, the rear yoke 46 of the rear universal joint 42 and the input shaft 2 of the tilling device R are engaged.
5 are opposed in the front and rear.
而して、上記状態から、後ヨーク46を入力軸25に連
結する際には、座席5上の運転者が後方に手を伸ばして
、クラッチ装置24の操作レバー55を持つと共に、ロ
ックピン57を上方に移動保持して、ロック板56のロ
ック孔62から離脱させた後、前方に回動させる。Therefore, when connecting the rear yoke 46 to the input shaft 25 from the above state, the driver on the seat 5 reaches back and holds the operating lever 55 of the clutch device 24, and also holds the lock pin 57. is moved and held upward, removed from the lock hole 62 of the lock plate 56, and then rotated forward.
これにより、支軸52、連動レバー53が回動して、連
動リンク54が後方に移動し、これによって装備筒27
が伝動軸40を伸長させ乍ら、後自在継手42と共に後
方に移動して、第1図及び第5図に示すように、入力軸
25に外嵌され、後ヨーク46の雌スプライン部50が
入力軸25の雄スプライン部49に嵌合される。As a result, the support shaft 52 and the interlocking lever 53 rotate, and the interlocking link 54 moves rearward.
While extending the transmission shaft 40, it moves rearward together with the rear universal joint 42, and as shown in FIGS. It is fitted into the male spline portion 49 of the input shaft 25 .
そして、上記嵌合後、ロックピン57の保持を解除して
、ロックピン57をロック板56のロック孔62に挿入
し、装備筒27を、例えば、最も後方に移動した耕耘装
置側保持位置に保持する。After the above-mentioned fitting, the holding of the lock pin 57 is released, the lock pin 57 is inserted into the lock hole 62 of the lock plate 56, and the equipment cylinder 27 is moved, for example, to the rearmost position on the cultivating device side. Hold.
ところで、上記の場合において、装備筒27の後方への
移動時には、各摺動部材30の上・下部ローラ3B、3
6がガイド26の天壁部と底壁部上を転動する。By the way, in the above case, when the equipment tube 27 moves backward, the upper and lower rollers 3B and 3 of each sliding member 30
6 rolls on the top and bottom walls of the guide 26.
この際、摺動部材30の支軸34廻りの揺動により、後
自在継手42の後ヨーク46を支持する装備筒27が一
方に平行移動可能で且つ上下方向に首振り自在とされて
いるので、例えば、後目−ク46が入力軸25に対して
下方側に芯ずれしていても、位置決めピン33がピン受
は体77のテーパ孔78内に挿入されると共に、入力軸
25が後ヨーク46のテーパ面51に案内されることに
より、摺動部材30が支軸34廻りに揺動して、後ヨー
ク46の入力軸25に対する芯ずれが修正されるのであ
り、従って、後ヨーク46の入力軸25に対する連結を
容易且つ円滑に行なうことができる。At this time, the equipment tube 27 that supports the rear yoke 46 of the rear universal joint 42 can be moved parallel to one side and swing freely in the vertical direction by the swinging of the sliding member 30 around the support shaft 34. For example, even if the rear eyepiece 46 is misaligned downward with respect to the input shaft 25, the positioning pin 33 is inserted into the tapered hole 78 of the body 77, and the input shaft 25 is By being guided by the tapered surface 51 of the yoke 46, the sliding member 30 swings around the support shaft 34, and the misalignment of the rear yoke 46 with respect to the input shaft 25 is corrected. can be easily and smoothly connected to the input shaft 25.
尚、上記のように、後ヨーク46は入力軸25に対して
、下方には平行移動不能であるので、後ヨーク46と入
力軸25の連結前の状態で、後ヨーク46の正規位置を
、入力軸25よりも若干下方側位置としておくことが好
ましい。As mentioned above, since the rear yoke 46 cannot be moved downward parallel to the input shaft 25, the normal position of the rear yoke 46 before the connection between the rear yoke 46 and the input shaft 25 is It is preferable to position it slightly below the input shaft 25.
尚、位置決めピン33がピン受は体77のストッパ84
に接当することにより、後ヨーク46の雌スプライン部
50と入力軸25の雄スプライン部49の過度の嵌合が
防止される。Note that the positioning pin 33 is connected to the stopper 84 of the body 77.
By abutting against them, excessive fitting between the female spline portion 50 of the rear yoke 46 and the male spline portion 49 of the input shaft 25 is prevented.
又、ピン受は体77の後部側は外側方に開口状とされて
いるので、上記雄・雌スプライン部49.50の嵌合度
合を外部から容易に確認できる。Further, since the pin receiver has an opening outward on the rear side of the body 77, the degree of fitting of the male and female spline parts 49 and 50 can be easily checked from the outside.
上記のようにして、耕耘装置Rのトラクタ1に対する連
結作業は終了する。As described above, the connection work of the tilling device R to the tractor 1 is completed.
次に、耕耘装置Rをトラクタ1から分離させる際には、
上記とは逆の手順で作業を行なうのであり、まず、クラ
ッチ装置24において、操作レバー55を持ち、ロック
ピン57を上方に移動保持して、ロック板56のロック
孔62から抜き、操作レバー55を後方に移動させて、
連動レバー53、連動リンク54を介して装備筒27を
前方に移動させ、後自在継手42の後ヨーク46と入力
軸25の連結を解除し、而る後、ロックピン57の保持
を解除して、弾機58により、ロックピン57をロック
板56のロック孔62に挿入させ、装備筒27を保持す
る。Next, when separating the tilling device R from the tractor 1,
The work is performed in the reverse order to the above. First, in the clutch device 24, hold the operating lever 55, move and hold the lock pin 57 upward, pull it out from the lock hole 62 of the lock plate 56, and then remove the operating lever 55. move backwards,
The equipment tube 27 is moved forward via the interlocking lever 53 and the interlocking link 54, the connection between the rear yoke 46 of the rear universal joint 42 and the input shaft 25 is released, and then the holding of the lock pin 57 is released. , the lock pin 57 is inserted into the lock hole 62 of the lock plate 56 by the bullet 58, and the equipment tube 27 is held.
次に、各阻止装置85において、操作ピン87を弾機8
8に抗して引上げ、ロックプレート86をロック解除位
置とした後、操作ピン87を回動させて、引掛片93を
受板94上端面に係合保持させ、ロックプレート86を
ロック解除位置として、連結体14の上係合部22から
耕耘装置Rの下連結軸80が離脱可能な状態とする。Next, in each blocking device 85, the operation pin 87 is
8 to bring the lock plate 86 to the unlocked position, rotate the operating pin 87 to engage and hold the hook piece 93 with the upper end surface of the receiving plate 94, and set the lock plate 86 to the unlocked position. , the lower connecting shaft 80 of the tilling device R can be detached from the upper engaging portion 22 of the connecting body 14.
この状態で、油圧装置3により、3点リンク機構9、連
結体14を介して、耕耘装置Rを下降させて、耕耘装置
Rの耕耘部75を接地させる。In this state, the tilling device R is lowered by the hydraulic device 3 via the three-point link mechanism 9 and the connecting body 14, and the tilling portion 75 of the tilling device R is brought into contact with the ground.
そして、更に、3点リンク機構9、連結体14を下降さ
せれば、耕耘装置Rが前傾して、まず、連結体14の上
係合部22内から耕耘装置Rの下連結軸80が離脱し、
その後、連結体14の1係合部21内から、耕耘装置R
の上連結軸79が相対的に上方側に離脱する。Then, when the three-point linkage mechanism 9 and the connecting body 14 are further lowered, the tilling device R is tilted forward, and the lower connecting shaft 80 of the tilling device R is first exposed from inside the upper engagement portion 22 of the connecting body 14. leave,
Thereafter, from within the first engaging part 21 of the connecting body 14, the tilling device R is removed.
The upper connecting shaft 79 is relatively detached upward.
これにより、トラクタ1からの耕耘装置Rの分離作業は
終了する。Thereby, the separation work of the tilling device R from the tractor 1 is completed.
第7図は本発明の第2実施例を示すもので、支部材31
が装備筒27の左右両側部の上下方向中央部に固設され
ている。そして、各摺動部材30の揺動アーム35の上
下方向中央部が支持材31に左右方向の支軸67により
枢支され、これにより、各摺動部材30の支軸67廻り
の揺動によって、装備筒27は上下いずれの方向にも平
行移動自在で且つ首振り自在とされている。FIG. 7 shows a second embodiment of the present invention, in which a supporting member 31
are fixedly installed at the vertical center of the left and right sides of the equipment tube 27. The vertical central portion of the swinging arm 35 of each sliding member 30 is pivotally supported by the supporting member 31 by a supporting shaft 67 in the left-right direction, so that the swinging of each sliding member 30 around the supporting shaft 67 causes , the equipment cylinder 27 can be moved in parallel in either the up or down direction and can be swung freely.
第8図は本発明の第3実施例を示すもので、摺動部材3
0が、弯曲状とされた仮バネにて例示する弾性部材39
と、弾性部材39の周方向中央部に固設された左右方向
の筒体98等を有し、弾性部材39の上下端部が、ガイ
ド26の天壁部と底壁部とに夫々弾発状に接当し、筒体
98に支軸34が挿通されている。FIG. 8 shows a third embodiment of the present invention, in which the sliding member 3
0 is an elastic member 39 exemplified by a curved temporary spring.
The elastic member 39 has a cylindrical body 98 in the left and right direction fixed to the center in the circumferential direction, and the upper and lower ends of the elastic member 39 are elastically attached to the top wall and the bottom wall of the guide 26, respectively. The support shaft 34 is inserted into the cylindrical body 98 .
尚、実施例では、作業機としてロータリ耕耘装置を用い
たが、ロータリ耕耘装置以外の作業機を用いてもよい。In the embodiment, a rotary tiller is used as the working machine, but a working machine other than the rotary tilling machine may be used.
又、本発明は、トラクタの前方側に作業機を連結する装
置にも適用可能である。Further, the present invention can also be applied to a device for connecting a working machine to the front side of a tractor.
(発明の効果)
以上詳述したように、本発明によれば、トラクタのPT
O軸と連動する作業機側自在継手と、作業機の入力軸と
の間に上下方向に関する芯ずれがあっても、その芯ずれ
を良好に吸収でき、作業機側自在継手と入力軸とを容易
に連結できる。又、装備筒を支持する摺動部材は前後方
向に関して装備筒よりもトラクタ側に位置しているので
、伝動軸後部、作業機側自在継手、装備筒をバランス良
く受けることができ、装備筒が例えはトラクタ側に大き
く傾むいたりすることがなく、この点においても、作業
機側自在継手と作業機の入力軸の連結を容易にできると
共に、ガイドを作業機からトラクタ側に大きく離すこと
ができ、ガイドと作業機との干渉の惧れをなくせる。本
発明は上記利点を有し、実益大である。(Effects of the Invention) As detailed above, according to the present invention, the tractor's PT
Even if there is misalignment in the vertical direction between the work equipment side universal joint that interlocks with the O-axis and the input shaft of the work equipment, the misalignment can be well absorbed, and the work equipment side universal joint and input shaft can be Can be easily connected. In addition, since the sliding member that supports the equipment tube is located closer to the tractor than the equipment tube in the longitudinal direction, it can receive the rear part of the transmission shaft, the universal joint on the work machine side, and the equipment tube in a well-balanced manner, and the equipment tube can For example, it does not lean too far toward the tractor, which makes it easier to connect the universal joint on the work machine side and the input shaft of the work machine, and also allows the guide to be moved far away from the work machine toward the tractor. This eliminates the risk of interference between the guide and the work machine. The present invention has the above advantages and is of great practical benefit.
第1図乃至第6図は本発明の第1実施例を示し、第1図
及び第2図の各図は異なる作動状態を示す要部の一部断
面側面図、第3図は全体側面図、第4図は要部の一部断
面正面図、第5図は第4図のA−A線矢視断面図、第6
図は第5図のB−B線矢視断面図、第7図及び第8図の
各図は本発明の第2、第3各実施例を示す要部の縦側断
面図である。
1−)−ラクタ、3・・・作業機昇降用油圧装置、7−
P T O軸、9・−3点リンク機構、10− トッ
プリンク、11− ロアリンク、14−・連結体、21
.22−・上・1係合部、4−・クラッチ装置、25−
人力軸、26−ガイド、27−装備筒、28−操作装置
、30・−・摺動部材、39・−・・弾性部材、40・
−・伝動軸、41.42−・自在継手、79.80・−
上・下連結軸、85−・阻止装置、R−・・ロークリ耕
耘装置(作業機)。1 to 6 show a first embodiment of the present invention, each of FIGS. 1 and 2 is a partial cross-sectional side view of the main part showing different operating states, and FIG. 3 is an overall side view. , FIG. 4 is a partially sectional front view of the main part, FIG. 5 is a sectional view taken along the line A-A in FIG. 4, and FIG.
The figure is a sectional view taken along the line B--B in FIG. 5, and each of FIGS. 7 and 8 is a longitudinal sectional view of a main part showing the second and third embodiments of the present invention. 1-)-Hydraulic device for lifting and lowering work equipment, 3... Hydraulic device for lifting and lowering work equipment, 7-
PTO axis, 9 - 3-point link mechanism, 10 - top link, 11 - lower link, 14 - connection body, 21
.. 22-・Upper 1 engagement part, 4-・Clutch device, 25-
Human power shaft, 26-guide, 27-equipment tube, 28-operating device, 30--sliding member, 39--elastic member, 40-
-・Transmission shaft, 41.42-・Universal joint, 79.80・-
Upper/lower connecting shaft, 85-.Blocking device, R-.. Rokuri tilling device (work machine).
Claims (1)
ンク11とから成る3点リンク機構9を介して、トラク
タ1に作業機Rを着脱自在に連結し、両ロアリンク11
を昇降装置3により昇降自在とし、トラクタ1のPTO
軸7と作業機Rの入力軸25とを、伸縮自在な伝動軸4
0と、伝動軸40の両端部に配設された一対の自在継手
41、42を介して解除自在に連結したものにおいて、 トップリンク10と両ロアリンク11の夫々の作業機側
端部が連結体14により連結され、連結体14は、連結
体14の上昇時に作業機Rの左右方向中央部の上部と左
右両側部が係脱自在に係合される係合部21、22を有
し、作業機Rの係合部21、22からの離脱を解除自在
に阻止する阻止装置85と、クラッチ装置24とが備え
られ、クラッチ装置24は、連結体14に略前後方向に
配設されたガイド26と、略前後方向の軸心を有し、且
つガイド26に摺動部材30を介して略前後方向に摺動
自在に備えられた装備筒27と、装備筒27内に支持さ
れた作業機側自在継手42と、装備筒27を軸心方向に
移動させてトラクタ側保持位置と作業機側保持位置とに
位置変更自在とする操作装置28とを有し、摺動部材3
0は、前後方向に関して、装備筒27よりもトラクタ1
側に位置し、摺動部材30は、ガイド26に対して装備
筒27を上下方向に平行移動自在で且つ首振り自在に保
持させる弾性部材39を有し、連結体14の係合部21
、22に作業機Rが係合した後、操作装置28により、
装備筒27がトラクタ側保持位置から作業機側保持位置
に位置変更せしめられることにより、作業機側自在継手
42が入力軸25に解除自在に連結されることを特徴と
するトラクタと作業機の連結装置。(1) The work implement R is removably connected to the tractor 1 via a three-point linkage mechanism 9 consisting of a top link 10 in the center and a pair of lower links 11 on the left and right, and both lower links 11
can be raised and lowered by the lifting device 3, and the PTO of the tractor 1
The shaft 7 and the input shaft 25 of the working machine R are connected to a telescopic transmission shaft 4.
0 and which are releasably connected via a pair of universal joints 41 and 42 provided at both ends of the transmission shaft 40, the top link 10 and both lower links 11 are connected at their respective ends on the work machine side. The connecting body 14 is connected by a body 14, and the connecting body 14 has engaging portions 21 and 22 that are removably engaged with the upper part of the center portion in the left and right direction of the working machine R and both left and right sides when the connecting body 14 is raised; A blocking device 85 that releasably prevents the working machine R from disengaging from the engaging portions 21 and 22 and a clutch device 24 are provided, and the clutch device 24 includes a guide disposed on the connecting body 14 in a substantially front-back direction. 26, an equipment cylinder 27 having an axis in the approximately longitudinal direction and provided on the guide 26 so as to be slidable approximately in the longitudinal direction via a sliding member 30, and a working machine supported within the equipment cylinder 27. It has a side universal joint 42 and an operating device 28 that moves the equipment tube 27 in the axial direction to change the position between a tractor side holding position and a working machine side holding position, and the sliding member 3
0 means that the tractor 1 is closer than the equipment cylinder 27 in the longitudinal direction.
The sliding member 30 has an elastic member 39 that allows the equipment cylinder 27 to be vertically movable and swingably held with respect to the guide 26, and the sliding member 30 has an elastic member 39 that allows the equipment cylinder 27 to be held vertically and swingably relative to the guide 26.
, 22, after the work implement R engages with the operating device 28,
A connection between a tractor and a working machine, characterized in that the working machine side universal joint 42 is releasably connected to the input shaft 25 by changing the position of the equipment tube 27 from the tractor side holding position to the working machine side holding position. Device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6665687A JPH0616643B2 (en) | 1987-03-19 | 1987-03-19 | Coupling device for tractor and work equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6665687A JPH0616643B2 (en) | 1987-03-19 | 1987-03-19 | Coupling device for tractor and work equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63230001A true JPS63230001A (en) | 1988-09-26 |
JPH0616643B2 JPH0616643B2 (en) | 1994-03-09 |
Family
ID=13322158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6665687A Expired - Lifetime JPH0616643B2 (en) | 1987-03-19 | 1987-03-19 | Coupling device for tractor and work equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0616643B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0184507U (en) * | 1987-11-27 | 1989-06-05 | ||
JPH01171951A (en) * | 1986-12-22 | 1989-07-06 | American Teleph & Telegr Co <Att> | Method of adjusting speed of ink-drip of ink jet nozzle in aligned nozzle |
-
1987
- 1987-03-19 JP JP6665687A patent/JPH0616643B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01171951A (en) * | 1986-12-22 | 1989-07-06 | American Teleph & Telegr Co <Att> | Method of adjusting speed of ink-drip of ink jet nozzle in aligned nozzle |
JPH0184507U (en) * | 1987-11-27 | 1989-06-05 |
Also Published As
Publication number | Publication date |
---|---|
JPH0616643B2 (en) | 1994-03-09 |
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