JPH0130964Y2 - - Google Patents
Info
- Publication number
- JPH0130964Y2 JPH0130964Y2 JP1983189095U JP18909583U JPH0130964Y2 JP H0130964 Y2 JPH0130964 Y2 JP H0130964Y2 JP 1983189095 U JP1983189095 U JP 1983189095U JP 18909583 U JP18909583 U JP 18909583U JP H0130964 Y2 JPH0130964 Y2 JP H0130964Y2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- fulcrum shaft
- cover
- attached
- regulating rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000008602 contraction Effects 0.000 claims description 4
- 238000003971 tillage Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Soil Working Implements (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Description
【考案の詳細な説明】
従来、トラクタ用耕耘装置のリヤカバーとして
前後２箇所に回動点を設けて耕耘された土壌に追
従して作動するようにしたものは既に知られてい
る。[Detailed Description of the Invention] Conventionally, a rear cover of a tiller for a tractor is already known which has two rotation points at the front and the rear so that the rear cover follows the tilled soil and operates.
しかし、前記既知のリヤカバーは自在に変動す
るので自動耕深調節装置の耕深検出装置として利
用することができなかつた。 However, since the known rear cover moves freely, it cannot be used as a plowing depth detecting device for an automatic plowing depth adjusting device.
本考案はリヤカバーを耕耘した土壌に自在に追
従させることができるものでありながら、自動耕
深調節装置の耕深検出装置としても利用すること
ができるトラクタ用耕耘装置のリヤカバーを提供
することを目的とするものであつて、耕耘部の後
部を覆うリヤカバーを、メインカバーの後部に前
部支点軸により回動可能に連結すると共に後部支
点軸で連結した前部板と後部板とで構成したトラ
クタ用耕耘装置において、前記前部板を重合した
２枚の板で構成すると共にそれらの板を前後移動
調節固定可能に連結し、上方の上記板の前部を前
記メインカバーに前部支点軸で枢着し、下方の前
記板の後部に後部板を前記後部支点軸にて枢着
し、上方の上記板上に立設したアームを機枠に進
退可能に弾持連繋し、該アームの上部の支点軸
と、前記後部板の後部に設けた支点軸とに、伸縮
自在な規制杆の両端を回動自在に連繋し、該規制
杆にその伸縮をロツクする止着具を付設し、前記
後部板を前部板に進退調節固定可能に連結したこ
とを特徴とするものである。 The purpose of the present invention is to provide a rear cover for a tillage device for a tractor, which allows the rear cover to freely follow the tilled soil, and which can also be used as a tillage depth detection device for an automatic tillage depth adjustment device. A tractor comprising a rear cover that covers the rear part of the tilling section, which is rotatably connected to the rear part of the main cover by a front fulcrum shaft, and a front plate and a rear plate connected by the rear fulcrum shaft. In the tillage device, the front plate is composed of two overlapping plates, and these plates are connected so that they can be moved back and forth and adjusted, and the front part of the upper plate is attached to the main cover with a front fulcrum shaft. A rear plate is pivotally attached to the rear of the lower plate by the rear fulcrum shaft, and an arm erected on the upper plate is elastically connected to the machine frame so that it can move forward and backward, and the upper part of the arm and a fulcrum shaft provided at the rear of the rear plate, both ends of an extendable regulating rod are rotatably connected, and a fastening device is attached to the regulating rod to lock its expansion and contraction, and It is characterized in that the rear plate is connected to the front plate so that it can be adjusted and fixed in forward and backward movement.
以下、図面に示す実施例について説明すると、
１はトラクタの後部に３点リンクで昇降可能に連
結した耕耘装置であつて、伝動ケース２の下部の
耕耘軸３ａには多数の耕耘刃３ｂ……が装着して
あり、該耕耘刃３ｂ……の回転軌跡の上部を覆う
メインカバー４から後部に亘るリヤカバー５は、
前部板５ａと、後部板５ｂとに分割されていて前
部の接合部は第一支点軸６で、また後部の接合部
は第二支点軸７でそれぞれ回動自在に連結されて
おり、前記前部板５ａは第一支点軸６に連繋した
板５a′と第二支点軸７に連繋した板５a″とを重合
してなり、それらの板５a′，５a″は少なくとも左
右２箇所に前後方向の長孔ａを有し、長孔ａに挿
通した螺子ｂで締着することにより前後に拡縮調
節することができる。 The embodiments shown in the drawings will be explained below.
Reference numeral 1 denotes a tilling device connected to the rear part of a tractor so that it can be raised and lowered by a three-point link, and a tilling shaft 3a at the bottom of a transmission case 2 is equipped with a large number of tilling blades 3b... The rear cover 5 that extends from the main cover 4 to the rear part covers the upper part of the rotation locus of...
It is divided into a front plate 5a and a rear plate 5b, and the front joint is rotatably connected to a first fulcrum shaft 6, and the rear joint is rotatably connected to a second fulcrum shaft 7. The front plate 5a is formed by overlapping a plate 5a' connected to the first fulcrum shaft 6 and a plate 5a'' connected to the second fulcrum shaft 7, and these plates 5a', 5a'' are arranged at least in two places on the left and right. It has a long hole a in the front-rear direction, and can be adjusted to expand or contract back and forth by tightening with a screw b inserted through the long hole a.
また、後部板５ｂの後縁には均平板８が連設し
てあり、この均平板８に立設した支柱９を伝動ケ
ース２の上部から後方へ延出させた支持枠１０の
後端に昇降自在に遊嵌し、緩衝スプリング９ａが
介装してある。 Further, a leveling plate 8 is connected to the rear edge of the rear plate 5b, and a column 9 erected on this leveling plate 8 is attached to the rear end of a support frame 10 extending rearward from the upper part of the transmission case 2. It is loosely fitted so that it can be raised and lowered, and a buffer spring 9a is interposed therebetween.
そして、前記リヤカバー５の前部板５ａに立設
した左右一対のアーム１１，１１の上端を支点軸
１２で連結し、該支点軸１２の中間部に前方へ延
びるロツド１３の基部を回動自在に連結し、該ロ
ツド１３の前部を貫挿した受金と受座１４との間
には緩衝スプリング１５を介装し、前記支点軸１
２と後部板５ｂの後縁に設けた支軸１６は、パイ
プ１７ａに杆１７ｂを摺動自在に嵌挿してなる規
制杆１７の両端に回動自在に連繋してあり、該規
制杆１７はパイプ１７ａの下部寄りに設けた止着
具を構成するボルト１８を緩めると伸縮自在にな
り、締付けると一体になる。 The upper ends of the pair of left and right arms 11, 11 erected on the front plate 5a of the rear cover 5 are connected by a fulcrum shaft 12, and the base of a rod 13 extending forward is rotatably connected to the middle part of the fulcrum shaft 12. A buffer spring 15 is interposed between the receiver 14 and the receiver 14, which is connected to the front part of the rod 13 and is inserted through the front part of the rod 13.
A support shaft 16 provided at the rear edge of the rear plate 5b and the rear plate 5b is rotatably connected to both ends of a regulating rod 17 formed by slidably fitting a rod 17b into a pipe 17a. Loosening the bolt 18 constituting the fastener provided near the bottom of the pipe 17a allows it to expand and contract, and becomes one piece when tightened.
前述の耕耘装置１において、リヤカバー５の前
部板５ａは土圧を受けると、ロツド１３が緩衝ス
プリング１５に抗して進退するので、第一支点軸
６を中心として回動し、後部板５ｂはボルト１８
を緩めると土圧の変化に応じて規制杆１７が伸縮
すると共に両端が回動するので第二支点軸７を中
心として回動する。 In the tillage device 1 described above, when the front plate 5a of the rear cover 5 receives earth pressure, the rod 13 moves back and forth against the buffer spring 15, so it rotates about the first fulcrum shaft 6, and the rear plate 5b is bolt 18
When loosened, the regulating rod 17 expands and contracts in accordance with changes in earth pressure, and both ends rotate, so that the regulating rod 17 rotates about the second fulcrum shaft 7.
また、前記ボルト１８を締付けると、規制杆１
７のパイプ１７ａと杆１７ｂとが一体になるの
で、後部板５ｂは前部板５ａと一体になり、それ
らは第一支点軸６を中心として一体的に回動し、
ロツド１３の進退量を耕深自動調節装置の耕深検
出装置の検出量として利用することができる。 Also, when the bolt 18 is tightened, the regulating rod 1
Since the pipe 17a and the rod 17b of No. 7 are integrated, the rear plate 5b and the front plate 5a are integrated, and they rotate together around the first fulcrum shaft 6.
The amount of advance and retreat of the rod 13 can be used as the amount detected by the plowing depth detection device of the plowing depth automatic adjustment device.
更に、リヤカバー５の前部板５ａの幅を拡縮調
節する場合は前記螺子ｂを緩めて行なうが、その
調節部の構成を第３〜５図について説明すると、
リヤカバー５の前部板５ａにおける上側にある板
５a′と下側の板５a″はそれぞれ左右に二箇所ずつ
前後方向の長孔ａ，ａを有し、下側の板５a″の下
面には下向きコ字状の補強を兼ねると共に上下の
板５a′，５a″の長孔ａ，ａの長さの和と略等しい
長さの長孔１９ａを有するたガイド板１９を熔接
し、該ガイド板１９の下面には上記長孔１９ａよ
りやや長い遮閉板２０を嵌合し、該遮閉板２０に
穿設した孔２１からボルトb1を挿入すると共にナ
ツトb2を回すことにより板５a′，５a″、ガイド板
１９、遮閉板２０を共締にしてあり、このような
締着構成にすると、耕耘時には土が、また代掻時
には泥土が遮閉板２０に阻止されて長孔ａ，ａか
ら内に入ることがなく、かつボルトb1が共回りす
ることもなく、しかも、遮閉板２０は常に長孔ａ
の下面を確実に覆つている。 Furthermore, when adjusting the width of the front plate 5a of the rear cover 5, the screw b is loosened, and the configuration of the adjustment section will be explained with reference to FIGS. 3 to 5.
The upper plate 5a' and the lower plate 5a'' of the front plate 5a of the rear cover 5 each have elongated holes a and a in the front-rear direction at two places on the left and right, and the lower surface of the lower plate 5a'' A guide plate 19 which also serves as a downward U-shaped reinforcement and has a long hole 19a having a length substantially equal to the sum of the lengths of the long holes a and a of the upper and lower plates 5a' and 5a'' is welded to the guide plate. A shielding plate 20 that is slightly longer than the elongated hole 19a is fitted onto the lower surface of the shielding plate 19, and by inserting the bolt b1 through the hole 21 made in the shielding plate 20 and turning the nut b2 , the plate 5a' , 5a'', the guide plate 19, and the shielding plate 20 are jointly fastened. With such a fastening configuration, the shielding plate 20 blocks the soil during tilling and the mud during plowing, and prevents the elongated hole a. , a, and the bolts b1 do not rotate together, and the shielding plate 20 is always connected to the elongated hole a.
securely covers the bottom surface of the
本考案は前述のように耕耘部の後部を覆うリヤ
カバーを、メインカバーの後部に前部支点軸によ
り回動可能に連結すると共に後部支点軸で連結し
た前部板と後部板とで構成したトラクタ用耕耘装
置において、前記前部板と重合した２枚の板で構
成すると共にそれらの板を前後移動調節固定可能
に連結し、上方の上記板の前部を前記メインカバ
ーに前部支点軸で枢着し、下方の前記板の後部に
後部板を前記後部支点軸にて枢着し、上方の前記
板上に立設したアームを機枠に進退可能に弾持連
繋し、該アームの上部の支点軸と、前記後部板の
後部に設けた支点軸とに、伸縮自在な規制杆の両
端を回動自在に連繋し、該規制杆にその伸縮をロ
ツクする止着具を付設し、前記後部板を前部板に
進退調節固定可能に連結したので、止着具のロツ
クを解除してして前部板と後部板とを連結してい
る規制杆を伸縮自在にすると二段折れリヤカバー
にすることができるものでありながら、前記止着
具によロツクを解除した状態で前部板を前部板に
対して作業に適した角度に回動し、規制杆を止着
具にてロツクすると、リヤカバーを構成する前部
板と後部板とを浅耕又は代掻等に適した所望の角
度に固定することができ、これを耕深自動制御の
耕深センサーにすることができる。 As described above, the present invention is a tractor comprising a rear cover that covers the rear part of the tilling section, which is rotatably connected to the rear part of the main cover by a front fulcrum shaft, and a front plate and a rear plate connected by the rear fulcrum shaft. The cultivation device is composed of two plates overlapped with the front plate, and these plates are connected so as to be adjustable and fixed in the front and back, and the front part of the upper plate is attached to the main cover with a front fulcrum shaft. A rear plate is pivotally attached to the rear of the lower plate by the rear fulcrum shaft, and an arm erected on the upper plate is elastically connected to the machine frame so that it can move forward and backward, and the upper part of the arm and a fulcrum shaft provided at the rear of the rear plate, both ends of an extendable regulating rod are rotatably connected, and a fastening device is attached to the regulating rod to lock its expansion and contraction, and Since the rear plate is connected to the front plate so that it can be adjusted forward and backward, the locking device can be unlocked and the regulating rod that connects the front plate and the rear plate can be made to extend and retract, allowing the rear cover to fold in two stages. However, with the locking tool released, the front plate can be rotated to an angle suitable for the work with respect to the front plate, and the regulating rod can be fixed using the fastening tool. When locked, the front plate and rear plate constituting the rear cover can be fixed at a desired angle suitable for shallow plowing or plowing, and this can be used as a plowing depth sensor for automatic plowing depth control.
また、作業の種類によりリヤカバーを前後調節
する場合、前部板の上下の板をスライド可能にな
すると共に前記止着具のロツクを解除することに
より上方の板を前後に移動調節して固定すること
ができる。その際、後部板の角度をも調節して耕
耘爪の回転軌跡に可及的に沿わせた状態でセツト
することができる。 In addition, when adjusting the rear cover back and forth depending on the type of work, the upper and lower plates of the front plate can be made slidable and the upper plate can be adjusted and fixed by releasing the locking device. be able to. At this time, the angle of the rear plate can also be adjusted so that the rear plate can be set so as to follow the rotation locus of the tiller claws as much as possible.
図面は本考案の一実施例を示すものであつて、
第１図は耕耘装置の側面図、第２図はリヤカバー
の一部の斜視図、第３図はリヤカバーの伸縮調節
部の分解斜視図、第４図は同上平面図、第５図は
同上断面図である。
１……耕耘装置、５……リヤカバー、５ａ……
前部板、５ｂ……後部板、６……第一支点軸、７
……第二支点軸、１１……アーム、１７……規制
杆、１８……ボルト。
The drawings show one embodiment of the present invention,
Fig. 1 is a side view of the tilling device, Fig. 2 is a perspective view of a part of the rear cover, Fig. 3 is an exploded perspective view of the expansion/contraction adjustment part of the rear cover, Fig. 4 is a plan view of the above, and Fig. 5 is a cross section of the above. It is a diagram. 1... Cultivation device, 5... Rear cover, 5a...
Front plate, 5b... Rear plate, 6... First fulcrum shaft, 7
...Second fulcrum shaft, 11...Arm, 17...Regulation rod, 18...Bolt.
Claims (1)
ーの後部に前部支点軸により回動可能に連結する
と共に後部支点軸で連結した前部板と後部板とで
構成したトラクタ用耕耘装置において、前記前部
板を重合した２枚の板で構成すると共にそれらの
板を前後移動調節固定可能に連結し、上方の上記
板の前部を前記メインカバーに前部支点軸で枢着
し、下方の上記板の後部に後部板を前記後部支点
軸にて枢着し、上方の上記板上に立設したアーム
を機枠に進退可能に弾持連繋し、該アームの上部
の支点軸と、前記後部板の後部に設けた支点軸と
に、伸縮自在な規制杆の両端を回動自在に連繋
し、該規制杆にその伸縮をロツクする止着具を付
設し、前記後部板を前部板に進退調節固定可能に
連結したことを特徴とするトラクタ用耕耘装置の
リヤカバー。 A tilling device for a tractor comprising a rear cover that covers the rear part of the tilling section, which is rotatably connected to the rear part of the main cover by a front fulcrum shaft, and a front plate and a rear plate connected by the rear fulcrum shaft. The part plate is composed of two overlapping plates, and these plates are connected so that they can be moved back and forth and adjusted, and the front part of the upper plate is pivotally connected to the main cover by a front fulcrum shaft, and the lower plate is A rear plate is pivotally attached to the rear part of the plate at the rear fulcrum shaft, and an arm erected on the upper plate is elastically connected to the machine frame so that it can move forward and backward, and the upper fulcrum shaft of the arm and the rear Both ends of an extensible regulating rod are rotatably connected to a fulcrum shaft provided at the rear of the plate, and a fastening device is attached to the regulating rod to lock its expansion and contraction, and the rear plate is attached to the front plate. A rear cover for a tiller for a tractor, characterized in that the rear cover is connected so as to be adjustable in forward and backward movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18909583U JPS6095802U (en) | 1983-12-07 | 1983-12-07 | Rear cover of tiller for tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18909583U JPS6095802U (en) | 1983-12-07 | 1983-12-07 | Rear cover of tiller for tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6095802U JPS6095802U (en) | 1985-06-29 |
| JPH0130964Y2 true JPH0130964Y2 (en) | 1989-09-22 |
Family
ID=30407779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18909583U Granted JPS6095802U (en) | 1983-12-07 | 1983-12-07 | Rear cover of tiller for tractor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6095802U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6731795B2 (en) * | 2016-06-10 | 2020-07-29 | 株式会社クボタ | Walk-behind management machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633011B2 (en) * | 1973-10-05 | 1981-07-31 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55157803U (en) * | 1979-04-27 | 1980-11-13 | ||
| JPS5633011U (en) * | 1979-08-21 | 1981-04-01 |
-
1983
- 1983-12-07 JP JP18909583U patent/JPS6095802U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633011B2 (en) * | 1973-10-05 | 1981-07-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6095802U (en) | 1985-06-29 |
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