JPH05260802A - Rolling controlling mechanism of working machine - Google Patents
Rolling controlling mechanism of working machineInfo
- Publication number
- JPH05260802A JPH05260802A JP6434092A JP6434092A JPH05260802A JP H05260802 A JPH05260802 A JP H05260802A JP 6434092 A JP6434092 A JP 6434092A JP 6434092 A JP6434092 A JP 6434092A JP H05260802 A JPH05260802 A JP H05260802A
- Authority
- JP
- Japan
- Prior art keywords
- working device
- ground working
- machine body
- rolling
- electric actuator
- 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
- Transplanting Machines (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、走行機体に対して駆動
昇降自在並びに電気式アクチュエータにより前後軸芯周
りで駆動ローリング自在に対地作業装置を連結するとと
もに、対地作業装置側に絶対水平姿勢からの傾斜角を検
出する傾斜センサを配設し、この傾斜センサの検出結果
に基づいて、前記対地作業装置を絶対水平姿勢に維持す
るよう前記電気式アクチュエータを制御駆動するローリ
ング制御手段を備え、前記対地作業装置の最大上昇位置
までの上昇作動において、対地作業装置のローリング姿
勢を所定状態に接当規制する接当規制具を設けてある作
業機のローリング制御機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention connects a ground working device to a traveling machine body so that it can be driven up and down and can be driven and rolled around an axis of front and rear by an electric actuator. An inclination sensor for detecting the inclination angle of the electric actuator is provided, and based on the detection result of the inclination sensor, rolling control means for controlling and driving the electric actuator so as to maintain the ground work device in an absolute horizontal posture is provided. The present invention relates to a rolling control mechanism for a working machine provided with a contact restricting tool for restricting the rolling posture of the ground working device to a predetermined state when the ground working device is raised to the maximum position.
【０００２】[0002]
【従来の技術】上記作業機のローリング制御機構におい
て、従来では、前記接当規制具は対地作業装置が常に対
機体平行姿勢になる状態で接当規制するよう構成してあ
った。2. Description of the Related Art Conventionally, in the rolling control mechanism for a working machine described above, the abutment restricting device has been constructed so as to restrict abutment in a state in which the ground working device is always in a posture parallel to the body.
【０００３】[0003]
【発明が解決しようとする課題】前記接当規制具は、対
地作業装置を大きく上昇させた状態で路上走行するよう
な場合、前記電気式アクチュエータは作動を滑らかに行
うためにストローク吸収用バネを介して連結されるの
で、走行機体の振動に起因して作業装置がローリング軸
芯周りで振らついて不安定になるのを防止するため強制
的に接当規制するよう構成したものであるが、上記した
ように作業装置は常に絶対水平姿勢になるようローリン
グ制御されているので、例えば、走行機体が左右に傾斜
した状態で作業装置を上昇させると、対機体斜め姿勢で
作業装置が上昇することになり、このように相対傾斜し
た状態で最大上昇位置まで到ると、前記接当規制具によ
り強制的に対機体平行姿勢に戻し作動しようとする。そ
の結果、前記ストローク吸収用バネが大きく伸長して強
いバネ力が作用することになって、電気式アクチュエー
タに無理な力が掛かり損傷するおそれがあり改善の余地
があった。本発明は上記不具合点を解消することを目的
としている。The aforesaid abutment restrictor is provided with a stroke absorbing spring for smooth operation of the electric actuator when traveling on the road with the ground work device being greatly raised. Since it is connected via the above, it is configured to forcibly abut and regulate in order to prevent the working device from swinging around the rolling axis and becoming unstable due to vibration of the traveling machine body. As described above, since the working device is always rolling-controlled so as to be in an absolute horizontal posture, for example, if the working device is lifted while the traveling machine body is tilted to the left or right, the working machine may be lifted in the diagonal attitude to the machine body. When reaching the maximum ascending position in such a relative tilted state, the contact regulation device forcibly attempts to return to the posture parallel to the body. As a result, the stroke absorbing spring is greatly expanded and a strong spring force acts, and there is a possibility that the electric actuator may be damaged due to excessive force applied thereto, and there is room for improvement. The present invention aims to eliminate the above-mentioned problems.
【０００４】[0004]
【課題を解決するための手段】本第１発明の特徴構成
は、冒頭に記載した作業機のローリング制御機構におい
て、前記走行機体側に絶対水平姿勢からの傾斜角度を検
出する傾斜センサを設け、前記対地作業装置の最大上昇
位置までの上昇作動時に、前記走行機体側傾斜センサの
検出結果に基づいて前記電気式アクチュエータを駆動し
て対地作業装置を対機体平行姿勢に制御する制御手段を
備えてある点にある。本第２発明の特徴構成は、前記走
行機体側に絶対水平姿勢からの傾斜角度を検出する傾斜
センサを設け、前記対地作業装置の最大上昇位置までの
上昇作動時に、前記走行機体側傾斜センサの検出結果に
基づいて、前記接当規制具による対地作業装置の規制姿
勢が絶対水平姿勢になるよう前記接当規制具を傾斜移動
調節する制御手段を備えてある点にある。According to a characteristic configuration of the first invention, in the rolling control mechanism for a working machine described at the beginning, an inclination sensor for detecting an inclination angle from an absolute horizontal posture is provided on the traveling machine body side, A control means for driving the electric actuator based on a detection result of the traveling body side inclination sensor to control the ground working apparatus to be in a posture parallel to the body when the ground working apparatus is moved up to the maximum lift position. There is a point. A characteristic configuration of the second aspect of the present invention is that a tilt sensor for detecting a tilt angle from an absolute horizontal posture is provided on the traveling machine body side, and the tilting sensor for the traveling machine body side is provided when the ground work device is lifted to a maximum lift position. On the basis of the detection result, there is provided a control means for adjusting the inclination of the contact restricting tool so that the restricting attitude of the ground work device by the contact restricting tool becomes an absolute horizontal attitude.
【０００５】[0005]
【作用】第１発明の特徴構成によると、走行機体が水平
姿勢から傾斜した状態で対地作業装置を大きく上昇させ
たような場合には、前記走行機体側の傾斜センサの検出
結果に基づいて、電気式アクチュエータを駆動して対地
作業装置を対機体平行姿勢に制御しながら上昇作動させ
るので、最大上昇位置まで上昇して接当規制具に接当し
たときには、作業装置が対機体平行状態であるからスト
ローク吸収用バネが大きく伸長することがなく、電気式
アクチュエータに無理な力が掛かることが無い状態で振
らつきを阻止できる。第２発明の特徴構成によると、走
行機体が水平姿勢から傾斜した状態で対地作業装置を大
きく上昇させたような場合には、前記走行機体側の傾斜
センサの検出結果に基づいて、規制姿勢が絶対水平姿勢
になるよう前記接当規制具を傾斜移動調節するので、対
地作業装置が絶対水平姿勢を維持しながら最大上昇位置
まで上昇して接当規制具に接当しても、そのままの姿勢
を維持するよう接当規制されるから、ストローク吸収バ
ネが大きく伸長して電気式アクチュエータに無理な力が
かかることが無い状態で振らつきを阻止できる。According to the characteristic construction of the first aspect of the invention, in the case where the ground work device is largely lifted in a state where the traveling machine body is inclined from the horizontal posture, based on the detection result of the inclination sensor on the traveling machine body side, Since the electric actuator is driven to raise the ground work device while controlling it to the posture parallel to the machine body, the work device is parallel to the machine body when it is raised to the maximum rising position and abuts on the contact restrictor. Therefore, the stroke absorbing spring does not greatly expand, and it is possible to prevent the fluctuations without applying an unreasonable force to the electric actuator. According to the characteristic configuration of the second invention, when the ground work device is largely lifted in a state where the traveling machine body is inclined from the horizontal posture, the regulation posture is changed based on the detection result of the inclination sensor on the traveling machine body side. Since the aforesaid engagement control device is tilted and adjusted so as to be in an absolute horizontal posture, the posture of the ground work device remains the same even when the work implement is raised to the maximum raised position and abuts on the engagement regulation device. Since the stroke absorption spring is restricted so as to maintain the stroke absorption spring, it is possible to prevent fluctuations in a state where the stroke absorbing spring is largely expanded and an excessive force is not applied to the electric actuator.
【０００６】[0006]
【発明の効果】従って、常に一定の作動速度を維持でき
る電気式アクチュエータを用い、かつ、圃場面の凹凸に
起因する誤検出を起こして不必要なローリング作動を行
わないように絶対水平姿勢からの傾斜を検出するセンサ
を用いる場合であっても、最大上昇位置における振らつ
き防止のための接当規制によりストローク吸収バネが大
きく伸長して電気式アクチュエータに無理な力が掛かる
のを有効に防止することができるものとなった。Therefore, an electric actuator capable of always maintaining a constant operating speed is used, and an undesired rolling operation is prevented from being caused by an erroneous detection due to unevenness of a field scene. Even when using a sensor that detects the tilt, it is possible to effectively prevent the stroke absorbing spring from being greatly extended by the contact regulation to prevent the fluctuation at the maximum rising position and exerting an unreasonable force on the electric actuator. It has become possible.
【０００７】[0007]
【実施例】以下、実施例を図面に基いて説明する。図１
に示すように、乗用型走行機体の後部に平行四連リンク
機構１を介して駆動昇降自在並びに前後軸芯周りでロー
リング自在に苗植付装置２〔対地作業装置の一例〕を連
結して乗用型田植機を構成してある。前記苗植付装置２
は、リンク機構１に前後軸芯周りで相対回動自在に連結
されるフレーム兼用の植付伝動ケース３、この植付伝動
ケース３に対して一定ピッチで往復横移動する苗のせ台
４、苗のせ台４の下端部から一株づつ取り出して圃場に
植付ける複数の植付機構５、複数の接地フロート６等を
備えて構成してある。そして、この苗植付装置２を所定
対地高さに維持する昇降制御手段と、絶対水平姿勢に維
持するローリング制御手段Ａとを備えてある。詳述する
と、図３にも示すように、左右中央に位置する接地フロ
ート６を後部横支点周りで上下揺動自在に支持するとと
もに、この中央接地フロート６の接地圧の変動に伴う上
下動量をポテンショメータＰＭ１により検出して、この
ポテンショメータＰＭ１の出力が設定用ポテンショメー
タＰＭ２により設定される設定高さに合致するよう制御
装置７が昇降駆動用油圧シリンダ８の油圧制御弁Ｖを駆
動制御するよう昇降制御手段を構成してある。又、苗の
せ台４の苗載置面の裏面側に絶対水平姿勢からの傾斜角
度を検出する重錘式傾斜センサ９を設け、この傾斜セン
サ９の出力が前記制御装置７に入力され、この検出結果
に基づいてリンク機構１における後リンク１ａと苗のせ
台４との間に介装される電気式アクチュエータとしての
ローリング駆動機構１０を制御装置７が駆動制御するよ
う構成してある。つまり、図２に示すように、後リンク
１ａ側に電動モータＭ１により回転駆動されるねじ軸１
１に雌ねじ部材１２を左右に移動自在に螺合して、この
雌ねじ部材１２をロッド１３及び左右のコイルスプリン
ク１４，１４を介して苗のせ台４の左右両側部に連結し
てある。従って、電動モータＭ１を正逆転駆動すること
で雌ねじ部材１２が左右にスライド移動して苗のせ台４
を前後軸芯周りで対機体ローリング作動するようにして
ローリング制御手段Ａを構成してある。前記コイルスプ
リング１４，１４を介装することによりハンチングを防
止しながら滑らかなローリング作動を行えるようにして
ある。Embodiments will be described below with reference to the drawings. Figure 1
As shown in FIG. 1, the rear side of the riding type traveling body is connected to the seedling planting device 2 [an example of a ground work device] so that it can be freely driven up and down through the parallel four-link mechanism 1 and can be freely rolled around the longitudinal axis. A type rice transplanter is configured. The seedling planting device 2
Is a frame-equipped planting transmission case 3 that is connected to the link mechanism 1 so as to be rotatable relative to the front-rear axis, a seedling stand 4 that reciprocates laterally with respect to the planting transmission case 3 at a constant pitch, It is configured by including a plurality of planting mechanisms 5, a plurality of grounding floats 6 and the like, which are taken out from the lower end of the placing table 4 one by one and are planted in a field. And, the raising / lowering control means for maintaining the seedling planting device 2 at a predetermined height above ground and the rolling control means A for maintaining the absolute horizontal posture are provided. More specifically, as shown in FIG. 3, the grounding float 6 located in the center of the left and right is supported so as to be vertically swingable around the rear lateral fulcrum, and the vertical movement amount due to the fluctuation of the grounding pressure of the central grounding float 6 is Raising / lowering control so that the controller 7 drives and controls the hydraulic control valve V of the lifting / lowering hydraulic cylinder 8 so that the output of the potentiometer PM1 matches the set height set by the setting potentiometer PM2. Means are configured. Further, a weight-type tilt sensor 9 for detecting a tilt angle from an absolute horizontal posture is provided on the back surface side of the seedling placing surface of the seedling stand 4, and the output of the tilt sensor 9 is input to the control device 7. Based on the detection result, the controller 7 drives and controls the rolling drive mechanism 10 as an electric actuator interposed between the rear link 1a of the link mechanism 1 and the seedling stand 4. That is, as shown in FIG. 2, the screw shaft 1 rotatably driven by the electric motor M1 on the rear link 1a side.
A female screw member 12 is screwed to the left and right so as to be movable to the left and right, and the female screw member 12 is connected to both left and right sides of the seedling placing table 4 via a rod 13 and left and right coil splinks 14, 14. Therefore, by driving the electric motor M1 in the forward and reverse directions, the female screw member 12 slides left and right to move the seedling stand 4
The rolling control means A is configured so that the rolling operation of the machine is performed around the longitudinal axis. By interposing the coil springs 14 and 14, smooth rolling operation can be performed while preventing hunting.
【０００８】前記機体操縦部には、前記昇降制御作動に
かかわらずスイッチ入り切り操作に基づいて苗植付装置
２を最大上昇位置まで強制上昇させ、かつ、下降させる
ための上昇操作スイッチＳＷを設けてある。つまり、上
昇操作スイッチＳＷを押し操作すると、植付け作用位置
にあっても強制的に最大上昇位置まで上昇し、再度押し
操作すると、上昇前の低位置まで下降するよう制御装置
７が油圧制御弁Ｖを制御駆動するよう構成してある。
又、リンク機構１の後方側下面箇所に、苗植付装置２側
の左右接当部１６が前記最大上昇状態において接当して
振らつきを阻止する接当規制具１７を設けてある。この
接当規制具１７は、苗植付装置２が対機体平行姿勢にな
る状態で接当規制するよう構成してある。又、走行機体
に絶対水平姿勢からの傾斜角度を検出する傾斜センサ１
８を配設してあり、上記したような上昇操作スイッチＳ
Ｗの操作に伴う上昇操作においては、苗植付装置２側の
傾斜センサ９の出力にかかわらず、前記制御装置７が、
前記走行機体側傾斜センサ１８の検出結果に基づいてロ
ーリング駆動機構１０を駆動して苗植付装置２を対機体
平行姿勢に制御するよう構成してある。つまり、走行機
体が絶対水平姿勢から傾斜した状態で苗植付装置２を大
きく上昇させると、植付け作業中において絶対水平姿勢
に維持制御される苗植付装置２が機体姿勢を基準に対機
体平行姿勢に制御されるので、前記コイルスプリング１
４，１４が無理に伸長してローリング駆動機構１０に無
理な力が掛かるのを防止することができるのである。A raising operation switch SW for forcibly raising and lowering the seedling planting apparatus 2 to a maximum raised position based on a switch-on / off operation is provided in the machine body control section regardless of the raising / lowering control operation. is there. That is, when the raising operation switch SW is pushed, the control device 7 causes the hydraulic control valve V to forcibly rise to the maximum raising position even if it is in the planting action position, and to push it down again to lower it to the lower position before raising. Are controlled and driven.
Further, a contact restricting member 17 is provided at a rear lower surface of the link mechanism 1 so that the left and right contact parts 16 on the seedling planting device 2 side contact with each other in the maximum raised state to prevent fluctuation. The contact restricting tool 17 is configured to restrict contact with the seedling planting device 2 in a posture parallel to the body. Further, a tilt sensor 1 for detecting the tilt angle of the traveling body from an absolute horizontal posture.
8 is provided and the raising operation switch S as described above is provided.
In the ascending operation accompanied by the operation of W, the control device 7 is irrespective of the output of the tilt sensor 9 on the seedling planting device 2 side.
The rolling drive mechanism 10 is driven based on the detection result of the traveling body-side tilt sensor 18 to control the seedling planting device 2 in a posture parallel to the body. In other words, if the seedling planting device 2 is greatly raised in a state where the traveling machine body is tilted from the absolute horizontal posture, the seedling planting device 2 that is maintained and controlled in the absolute horizontal posture during the planting work is parallel to the machine body based on the posture of the machine body. Since the posture is controlled, the coil spring 1
Therefore, it is possible to prevent the rolling drive mechanism 10 from being unduly stretched due to the excessive expansion of the rolls 4, 14.
【０００９】〔別実施例１〕前記上昇操作スイッチＳＷ
の操作に伴って直ちに機体側傾斜センサ１８の検出結果
に基づいてローリング制御機構１０を制御駆動するもの
に代えて、前記上昇操作スイッチＳＷの操作時点から所
定時間経過した後に、機体側傾斜センサ１８の検出結果
に基づいてローリング制御機構１０を制御駆動するよう
構成してもよい。[Other Embodiment 1] The raising operation switch SW
Instead of controlling and driving the rolling control mechanism 10 based on the detection result of the machine body side inclination sensor 18 immediately after the operation, the machine body side inclination sensor 18 is operated after a predetermined time has elapsed from the time of operating the raising operation switch SW. The rolling control mechanism 10 may be configured to be controlled and driven based on the detection result of 1.
【００１０】〔別実施例２〕前記上昇操作スイッチＳＷ
の操作に伴う苗植付装置２の上昇操作時に、上記したよ
うにローリング制御機構１０を制御するものに代えて、
図４に示すように、前記接当規制具１７を電動モータＭ
２とねじ送り機構１９により傾斜移動調節自在に構成し
て、前記電動モータＭ２を前記走行機体側傾斜センサ１
８の検出結果に基づいて駆動制御して、その接当規制姿
勢が絶対水平姿勢になるよう制御装置７が制御するよう
構成するものであってもよい。つまり、この実施例では
最大上昇位置で苗植付装置２は絶対水平姿勢を維持する
ものとなるが、前記コイルスプリング１４，１４は無理
に伸長することが無いのである。[Second Embodiment] The raising operation switch SW
Instead of controlling the rolling control mechanism 10 as described above when the seedling planting device 2 is moved up in accordance with the operation of
As shown in FIG. 4, the engagement regulating member 17 is connected to the electric motor M.
2 and a screw feed mechanism 19 so that the tilt movement can be adjusted, and the electric motor M2 is connected to the traveling body side tilt sensor 1
The drive control may be performed based on the detection result of 8, and the control device 7 may control the contact regulation posture to be an absolute horizontal posture. That is, in this embodiment, the seedling planting device 2 maintains an absolute horizontal posture at the maximum raised position, but the coil springs 14 and 14 do not forcefully extend.
【００１１】尚、特許請求の範囲の項に図面との対照を
容易にするために符号を記すが、該記入により本発明は
添付図面の構成に限定されるものではない。It should be noted that reference numerals are added to the claims for facilitating the comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.
【図１】田植機の後部の側面図[Figure 1] Side view of the rear part of rice transplanter
【図２】ローリング制御機構を示す後面図FIG. 2 is a rear view showing a rolling control mechanism.
【図３】制御ブロック図FIG. 3 is a control block diagram.
【図４】別実施例の接当規制具駆動系を示す正面図FIG. 4 is a front view showing a contact restricting device drive system according to another embodiment.
２ 対地作業装置 ７ 制御手段 ９ 作業装置側傾斜センサ １０ 電気式アクチュエータ １７ 接当規制具 １８ 機体側傾斜センサ Ａ ローリング制御手段 2 Ground work device 7 Control means 9 Work device side tilt sensor 10 Electric actuator 17 Contact control tool 18 Airframe side tilt sensor A Rolling control means
Claims (2)
気式アクチュエータ（１０）により前後軸芯周りで駆動
ローリング自在に対地作業装置（２）を連結するととも
に、対地作業装置（２）側に絶対水平姿勢からの傾斜角
を検出する傾斜センサ（９）を配設し、この傾斜センサ
（９）の検出結果に基づいて、前記対地作業装置（２）
を絶対水平姿勢に維持するよう前記電気式アクチュエー
タ（１０）を制御駆動するローリング制御手段（Ａ）を
備え、前記対地作業装置（２）の最大上昇位置までの上
昇作動において、対地作業装置（２）のローリング姿勢
を所定状態に接当規制する接当規制具（１７）を設けて
ある作業機のローリング制御機構であって、前記走行機
体側に絶対水平姿勢からの傾斜角度を検出する傾斜セン
サ（１８）を設け、前記対地作業装置（２）の最大上昇
位置までの上昇作動時に、前記走行機体側傾斜センサ
（１８）の検出結果に基づいて前記電気式アクチュエー
タ（１０）を駆動して対地作業装置（２）を対機体平行
姿勢に制御する制御手段（７）を備えてある作業機のロ
ーリング制御機構。1. A ground working device (2) is connected to a traveling machine body such that it can be driven up and down and driven by an electric actuator (10) so that it can be driven and rolled around a front-rear axis, and the ground working device (2) is absolutely connected. An inclination sensor (9) for detecting an inclination angle from the horizontal posture is provided, and the ground working device (2) is based on the detection result of the inclination sensor (9).
A rolling control means (A) for controlling and driving the electric actuator (10) so as to maintain the vehicle in an absolute horizontal posture, and when the ground working device (2) is lifted to the maximum lift position, the ground working device (2) ) Is a rolling control mechanism for a working machine, which is provided with a contact restricting tool (17) for restricting the rolling posture to a predetermined state, wherein the inclination sensor detects an inclination angle from the absolute horizontal posture on the traveling machine body side. (18) is provided, and the electric actuator (10) is driven based on the detection result of the traveling body side inclination sensor (18) when the ground working device (2) is moved up to the maximum lift position. A rolling control mechanism for a working machine, comprising a control means (7) for controlling the working device (2) in a posture parallel to the machine body.
気式アクチュエータ（１０）により前後軸芯周りで駆動
ローリング自在に対地作業装置（２）を連結するととも
に、対地作業装置（２）側に絶対水平姿勢からの傾斜角
を検出する傾斜センサ（９）を配設し、この傾斜センサ
（９）の検出結果に基づいて、前記対地作業装置（２）
を絶対水平姿勢に維持するよう前記電気式アクチュエー
タ（１０）を制御駆動するローリング制御手段（Ａ）を
備え、前記対地作業装置（２）の最大上昇位置までの上
昇作動において、対地作業装置（２）のローリング姿勢
を所定状態に接当規制する接当規制具（１７）を設けて
ある作業機のローリング制御機構であって、前記走行機
体側に絶対水平姿勢からの傾斜角度を検出する傾斜セン
サ（１８）を設け、前記対地作業装置（２）の最大上昇
位置までの上昇作動時に、前記傾斜センサ（１８）の検
出結果に基づいて、前記接当規制具（１７）による対地
作業装置（２）の規制姿勢が絶対水平姿勢になるよう前
記接当規制具（１７）を傾斜移動調節する制御手段
（７）を備えてある作業機のローリング制御機構。2. The ground working device (2) is connected to the traveling machine body so as to be freely driven up and down and driven by an electric actuator (10) so as to be driven and rolled around the front-rear axis, and is absolutely connected to the ground working device (2) side. An inclination sensor (9) for detecting an inclination angle from the horizontal posture is provided, and the ground working device (2) is based on the detection result of the inclination sensor (9).
A rolling control means (A) for controlling and driving the electric actuator (10) so as to maintain the vehicle in an absolute horizontal posture, and when the ground working device (2) is lifted to the maximum lift position, the ground working device (2) ) Is a rolling control mechanism for a working machine, which is provided with a contact restricting tool (17) for restricting the rolling posture to a predetermined state, wherein the inclination sensor detects an inclination angle from the absolute horizontal posture on the traveling machine body side. (18) is provided, and the ground work device (2) by the contact regulation tool (17) is based on the detection result of the tilt sensor (18) when the ground work device (2) is raised to the maximum lift position. 2) A rolling control mechanism for a working machine, comprising a control means (7) for tilting and adjusting the contact regulation tool (17) so that the regulation posture is an absolute horizontal posture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4064340A JP2721073B2 (en) | 1992-03-23 | 1992-03-23 | Work machine rolling control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4064340A JP2721073B2 (en) | 1992-03-23 | 1992-03-23 | Work machine rolling control mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05260802A true JPH05260802A (en) | 1993-10-12 |
| JP2721073B2 JP2721073B2 (en) | 1998-03-04 |
Family
ID=13255420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4064340A Expired - Lifetime JP2721073B2 (en) | 1992-03-23 | 1992-03-23 | Work machine rolling control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2721073B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002358124A (en) * | 2001-06-01 | 2002-12-13 | Sugiyasu Industries Co Ltd | Table lift |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61247310A (en) * | 1985-11-11 | 1986-11-04 | 井関農機株式会社 | Riding type rice planter |
| JPS6420122U (en) * | 1987-07-28 | 1989-02-01 | ||
| JPH0244654U (en) * | 1988-09-14 | 1990-03-27 | ||
| JP3099910U (en) * | 2003-08-18 | 2004-04-22 | コンピュータエデュケーションシステム株式会社 | Display device |
-
1992
- 1992-03-23 JP JP4064340A patent/JP2721073B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61247310A (en) * | 1985-11-11 | 1986-11-04 | 井関農機株式会社 | Riding type rice planter |
| JPS6420122U (en) * | 1987-07-28 | 1989-02-01 | ||
| JPH0244654U (en) * | 1988-09-14 | 1990-03-27 | ||
| JP3099910U (en) * | 2003-08-18 | 2004-04-22 | コンピュータエデュケーションシステム株式会社 | Display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002358124A (en) * | 2001-06-01 | 2002-12-13 | Sugiyasu Industries Co Ltd | Table lift |
| JP4503881B2 (en) * | 2001-06-01 | 2010-07-14 | 株式会社スギヤス | Table lift |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2721073B2 (en) | 1998-03-04 |
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