JP2020130156A - Support pulling device for yam cultivation - Google Patents

Support pulling device for yam cultivation Download PDF

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JP2020130156A
JP2020130156A JP2019038020A JP2019038020A JP2020130156A JP 2020130156 A JP2020130156 A JP 2020130156A JP 2019038020 A JP2019038020 A JP 2019038020A JP 2019038020 A JP2019038020 A JP 2019038020A JP 2020130156 A JP2020130156 A JP 2020130156A
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support
gripping unit
strut
pulling device
elevating arm
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JP6755006B2 (en
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苫米地　力
Tsutomu Tomabechi
力 苫米地
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Tomabechi Giken Kogyo KK
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Abstract

To provide a support pulling device that can complete the support collection work after growth of yam in a short time and carry it out of the field.SOLUTION: There is provided a support pulling device for yam cultivation, which comprises a gripping unit 4 attached to traveling means 1 and having left and right holding members 2 for pulling out a support column 3, and lifting arm 7 supporting the gripping unit 4 at one end, and in which the lifting arm 7 reaches the top dead center, and then the support column 3 is moved from the gripping unit 4 that grips the support column 3 to the rear storage section 6 so that a sequential action includes actions from the pulling out of support column to storage loading.SELECTED DRAWING: Figure 1

Description

本発明は長いもの生育が終わり、蔓巻き処理後の支柱引き抜き装置に関するもので、詳しくは自走車が走行しながら支柱を連続して抜きあげて後部に搭載して回収する自走型の支柱引き抜き装置である。 The present invention relates to a support column pulling device after long growth and after vine winding processing. Specifically, the self-propelled support column is a self-propelled support column in which the support column is continuously pulled out while the self-propelled vehicle is running and mounted on the rear part for collection. It is a pull-out device.

この種の長いも支柱引き抜き装置については、同一出願人による特許第３７８０２６１号「支柱引き抜き装置」として提案されている。
前記の公報に記載されている構成は、「圃場の土中にほぼ垂直に差し込まれて立てられた作物用の支柱を引き抜くための、支柱引き抜き装置であって、前記支柱引き抜き装置は、前記圃場を走行移動するための走行手段と、前記支柱を挟持する一対の支柱挟持部を含む支柱挟持手段と、 前記支柱を挟持したままで、前記支柱挟持手段ごと上方へ引き上げて支柱を引き抜くとともに、前記支柱を引き抜いた後に前記支柱挟持手段を下ろして元の位置に戻し、前記支柱挟持部を開放する支柱挟持手段昇降手段と、 を備えたことを特徴とする支柱引き抜き装置」であって圃場に２ｍ〜３ｍの間隔で、深さ略５０ｃｍ〜１ｍに差し込まれた支柱を容易に引き抜いてそれを圃場の外に搬送する装置を提供したものである。This type of long strut pulling device has been proposed as Patent No. 3780261 “Strut pulling device” by the same applicant.
The configuration described in the above-mentioned publication is "a support pulling device for pulling out a support for a crop erected by being inserted substantially vertically into the soil of the field, and the support pulling device is the field. A traveling means for traveling and moving, a strut holding means including a pair of strut holding portions for sandwiching the strut, and while holding the strut, the strut holding means is pulled upward together with the strut holding means to pull out the strut. A support pulling device characterized by being provided with a support holding means elevating means for pulling out the support, lowering the support holding means to return it to its original position, and opening the support holding portion, and 2 m in the field. Provided is an apparatus for easily pulling out a support column inserted to a depth of about 50 cm to 1 m at an interval of about 3 m and transporting it to the outside of the field.

特許第３７８０２６１号公報Japanese Patent No. 3780261

前記した公知の特許文献１によれば従来の従来の容易に抜けない支柱を確実に抜き上げて圃場の外へ搬送可能となったものである。しかし、栽培畦のそれぞれ支柱一本ごとに、移送車を移動停止して、抜き取り作業終了の後に、改めて次の支柱に移動する作業形態なので、圃場ごとに相当な時間を要する課題があった。According to the above-mentioned known Patent Document 1, it is possible to reliably pull out the conventional strut that cannot be easily pulled out and carry it out of the field. However, there is a problem that it takes a considerable amount of time for each field because the work mode is to stop the transfer vehicle for each support of the cultivation ridge and move to the next support again after the extraction work is completed.

本発明は前記の課題を解決するために、 長いも生育後の支柱引き抜き装置であって、走行手段に付設し、支柱を引き抜く為の左右挟持部材を有した把持ユニットと、把持ユニットを先端に支持した昇降アームと、前記昇降アームが上死点に達した後に、支柱を把持した把持ユニットから支柱が後方の貯留部へ移動され、支柱抜き取りより貯留搭載までを一連の連続動作としたことを特徴とした、長いも栽培等の支柱引き抜き装置。
また、前記長いも栽培等の支柱引き抜き装置において支柱を引き抜く為の把持ユニットは昇降アームの先端に前後左右自在の継手を介して吊持して、把持ユニットは垂直方向に短時間に昇降する構成である
また、前記長いも栽培等の支柱引き抜き装置において走行手段の走行速度は支柱抜き取りから貯留搭載までの作業工程時間に対応する制御手段を具備した構成である。
また、前記長いも栽培等の支柱引き抜き装置において昇降アームの上半部は折り曲げ可能に構成されて、昇降アームが上死点に達した後に上部アームが折れ曲がり把持ユニットが反転傾斜して後方の載置台へ支柱を放出することを特徴とした構成である。In order to solve the above-mentioned problems, the present invention is a strut pulling device after growing for a long time, and is attached to a traveling means and has a gripping unit having left and right holding members for pulling out the strut, and a gripping unit is supported at the tip. After the elevating arm and the elevating arm reached the top dead center, the strut was moved from the gripping unit that gripped the strut to the rear storage section, and a series of continuous operations from the removal of the strut to the loading and dismounting of the strut were performed. A device for pulling out columns for long-term cultivation.
Further, in the support pulling device for long-term cultivation, the gripping unit for pulling out the support is suspended from the tip of the elevating arm via a joint that can be freely moved forward, backward, left and right, and the gripping unit moves up and down in the vertical direction in a short time. Further, in the support column pulling device for long-term cultivation or the like, the traveling speed of the traveling means is provided with a control means corresponding to the work process time from the support column extraction to the storage and loading.
Further, in the support pulling device for long-term cultivation, the upper half of the elevating arm is configured to be bendable, and after the elevating arm reaches the top dead center, the upper arm is bent and the gripping unit is inverted and tilted to the rear mounting table. The configuration is characterized by discharging the columns to the dead center.

前記した構成により、長芋が生育し、蔓を回収した後の圃場の支柱は、走行車が走行しながら把持ユニットによって支柱を挟持し、常に垂直上方へ抜き上げて、昇降アームが上死点を超えた後に把持ユニットは反転して傾斜し支柱を搭載台に放擲貯留する。従って支柱の抜き取り、貯留搭載が連続して行われ、長いも生育後の支柱回収作業はワン工程で短時間に完結し圃場外に搬出できる。また、昇降アームの先端に前後左右自在の継手を介して支持したので、支柱は常に垂直方向に短時間に抜き取られる効果がり、さらに走行手段の走行速度は支柱抜き取りから貯留搭載までの作業工程時間に対応する制御手段を具備しているので一列に配置されている支柱は連続して抜き取り可能となり効率的である。With the above configuration, after the long potatoes have grown and the vines have been collected, the pillars in the field are held by the gripping unit while the traveling vehicle is running, and are always pulled up vertically, and the elevating arm reaches the top dead center. After exceeding the limit, the gripping unit is inverted and tilted, and the columns are released and stored on the mounting base. Therefore, the stanchions are pulled out and stored and loaded continuously, and the stanchion recovery work after growth can be completed in a short time in one step and can be carried out of the field. In addition, since the support is supported at the tip of the elevating arm via a joint that can be freely moved forward, backward, left and right, the support column is always pulled out in a short time in the vertical direction, and the running speed of the traveling means is the work process time from the removal of the support column to the storage and loading. Since the control means corresponding to the above is provided, the columns arranged in a row can be continuously extracted, which is efficient.

本発明を実施した前方斜視図Front perspective view in which the present invention is carried out は一部を省略した側面図Is a side view with some parts omitted は一部を省略した平面図Is a plan view with some parts omitted は支柱抜き取り説明図Is a support drawing explanatory drawing は昇降アーム折り曲げ説明図Is an explanatory view of bending the lifting arm は支柱放擲説明図Is an explanatory diagram of props は把持ユニット説明図Is an explanatory view of the gripping unit その他の実施例であるOther examples

本発明は前記の課題を解決するために、 長いも生育後の支柱引き抜き装置であって、走行手段に付設し、支柱を引き抜く為の左右挟持部材を有した把持ユニットと、把持ユニットを先端に支持した昇降アームと、前記昇降アームが上死点に達した後に、支柱を把持した把持ユニットから支柱が後方の貯留部へ移動され、支柱抜き取りより貯留搭載までを一連の連続動作としたことを特徴とした、長いも栽培等の支柱引き抜き装置であって、また、支柱を引き抜く為の把持ユニットは昇降アームの先端に前後左右自在の継手を介して吊持してなり、把持ユニットは常に垂直方向に短時間に昇降する構成である。In order to solve the above-mentioned problems, the present invention is a support column pulling device after long growth, which is attached to a traveling means and has a gripping unit having left and right holding members for pulling out the support, and a gripping unit is supported at the tip. After the elevating arm and the elevating arm reached the top dead center, the strut was moved from the gripping unit that gripped the strut to the rear storage section, and a series of continuous operations from the removal of the strut to the loading and dismounting of the strut were performed. It is a support pulling device for long cultivation, etc., and the gripping unit for pulling out the support is suspended from the tip of the elevating arm via a joint that can be freely moved forward, backward, left and right, and the gripping unit is always in the vertical direction. It is configured to move up and down in a short time.

実施した図面について説明する。図１は本発明を実施した前方斜視図を示す。１は走行車で、本実施例では農用トラクタを使用し、後部の三点リンクによって引き抜き装置Ａの機枠体５を連結している。機枠体５には走行方向と平行に昇降アーム７が配置される。昇降アーム７の先端には支柱５を引き抜くための左右挟持部材２を有した把持ユニット４が吊持されている。図に示している挟持部材２は３の支柱を挟持している。支柱３は一対のガイド体１０によって持ユニット４に案内される。把持ユニット４は昇降アーム７の先端に自在接手２５を介して吊持して、把持ユニット４は常に垂直方向に短時間に昇降する構成である。
８は油圧シリンダを示し、下端が機枠体５に支承されて上端は昇降アーム７に支承されて、伸縮動作によって昇降アーム７を適宜回動し把持ユニット４を昇降する。昇降アーム７の上半部は分割されて折り曲げ自在の上部アーム１１である。である。１２は規制リンクで前記の上部アーム１１の作動を規制するものである。６は載置台を示し、把持ユニット４で抜き取った支柱３を貯留載置するものである。
図２は本発明を実施して、一部を省略した側面図である。１は走行車で、１４は走行車１の３点リンクによって装着した連結枠１４を示し、５は機枠体でＡの支柱引き抜き装置を支持している。７は昇降アームで上半部は折り曲げ自在の上部アーム１１を構成し、上部アーム１１の先端に把持ユニット４を吊持している。１２は規制リンクで上部アーム１１の作動を規制する。８は往復油圧シリンダで伸縮によって昇降アームの先端に吊持した把持ユニット４を上昇させてＲ−１の軌跡で回動し、把持した支柱３を抜き上げる。２５は自在接手を示し前後左右に自在に作動し、挟持部材に挟持された支柱は常に垂直方向に短時間に昇降する。昇降アーム７の回動が上死点近傍で、規制リンク１２によって規制されて上部アーム１１が折曲がってＲ−２の軌跡になり、把持ユニット４は反転して傾斜する。この時、挟持部材２は自重によって挟持部材２が開放して支柱３を載置台６に放擲して貯留する。
図３は一部を省略した平面図で１は走行車を示し、１５はトップリンク、１６は１対のロアリンクで三点リンクを構成し、１４の連結フレームを支承する。５は機枠体で１４の連結フレームに固着されてＡの支柱引き抜き装置を支持する。２３はベースフレームを示し機枠体５の前方に一対延設し、把持ユニット４の基板２４を載置する。把持ユニット４がベースフレーム２３に載置した状態で挟持部材２は開いた状態で進行すると支柱３を挟み込む。走行車１の走行速度は支柱抜き取りから貯留搭載までの作業工程時間に対応する制御手段を具備したもので、本実施例に於いては油圧無断駆動４輪車でロータリ耕耘速度と同等でよい。
図４は把持ユニット４の挟持部材２が支柱３を挟持して抜きあがる直前の状態を示したものである。走行車１は支柱引き抜き装置Ａの抜き取り貯留のサイクル時間に適合する速度設定による。油圧シリンタ８が支軸−１を支点として伸びると昇降アーム１２が１７の基軸を支点として昇降して支柱３を挟持して上昇する。この時、規制リンク１２は支軸−２の１９を支点として上部アーム１１側の支軸−３の２０を支点として上部アームを規制して折曲げ作用する。９は当て部材で折曲がって反転した上部アーム１１を停止させる。２５は自在接手を示し、上部アーム１１の先端で把持ユニット４を吊持する部材で横軸と縦軸を有し前後左右自在に動き、常に挟持部材２を垂直方向に支持する。
図５は同じく上部アーム１１が折れ曲がりつつ把持ユニット４が反転する直前の状態を示す。９は昇降アームの上面に設けた当て部材で、上部アーム１１が反転した時にストッパーである。
図６は同じく上部アーム１１が反転して傾斜した状態を示す。上部アーム１１が折曲がり前記９の当て部材に衝突して把持ユニット４の基板２４が自重で下降し挟持部材２が左右に開いて支柱３が放擲されて９の載置台に投入される状態を示したものである。
図７は把持ユニット４の説明図を示す。（イ）は把持ユニット４の基板２４がベースフレーム２３に載置した状態を示す。ベースフレーム２３に基板２４が当接した状態で上部アーム１１が幾分下降するとステイ２６が下降しリンク板２７を回動する。リンク板７は回動軸２８を支点として回動し左右の挟持部材２を開いた状態で安定する。（ロ）は上部アームが少し上昇し基板２４に対してステイ２６がリンク板２７を矢印方向に回動させて支柱３を挟持した状態を示す。（ハ）は上部アーム１１が折れ曲がり当て部材９に衝突して停止して、その時把持ユニット４が反転して、リンク板が矢印の方向に動作して挟持部材２が開いた状態を示す。すなわち前記した図６の上部アーム１１が折曲がり９の当て部材に衝突して把持ユニット４の基板２４が自重で下降し挟持部材２が左右に開いて支柱３が放擲される状態を示し、支柱３は９の載置台に投入され整列する。載置台６の搭載された支柱３は圃場外に移動して、油圧シリンダによる回転排出手段によって設定した場所に排出される。
図８はその他の実施例を示し、（イ）は昇降アーム７に対して、上部アーム１１を独立した油圧シリンダによって折れ曲がりを可能にした構成である。（ロ）把持ユニット４の左右挟持部材２の挟持作用を油圧シリンダの伸縮によって開閉する構成の平面図であり、（は）その正面図を示したもので、本発明の要旨に包含されるものである。The drawings carried out will be described. FIG. 1 shows a front perspective view in which the present invention is carried out. Reference numeral 1 denotes a traveling vehicle. In this embodiment, an agricultural tractor is used, and the machine frame 5 of the pulling device A is connected by a three-point link at the rear. An elevating arm 7 is arranged on the machine frame 5 in parallel with the traveling direction. A gripping unit 4 having left and right holding members 2 for pulling out the support column 5 is suspended at the tip of the elevating arm 7. The sandwiching member 2 shown in the figure sandwiches the support of 3. The support column 3 is guided to the holding unit 4 by a pair of guide bodies 10. The gripping unit 4 is suspended from the tip of the elevating arm 7 via a universal joint 25, and the gripping unit 4 always moves up and down in the vertical direction in a short time.
Reference numeral 8 denotes a hydraulic cylinder, the lower end of which is supported by the machine frame body 5 and the upper end of which is supported by the elevating arm 7, and the elevating arm 7 is appropriately rotated by an expansion / contraction operation to move the gripping unit 4 up and down. The upper half of the elevating arm 7 is a split and bendable upper arm 11. Is. Reference numeral 12 denotes a regulation link for restricting the operation of the upper arm 11. Reference numeral 6 denotes a mounting table, in which the support column 3 extracted by the gripping unit 4 is stored and mounted.
FIG. 2 is a side view in which the present invention is carried out and a part thereof is omitted. Reference numeral 1 denotes a traveling vehicle, 14 indicates a connecting frame 14 attached by a three-point link of the traveling vehicle 1, and 5 is a machine frame body supporting the support column pulling device of A. Reference numeral 7 denotes an elevating arm, the upper half of which constitutes a bendable upper arm 11, and a gripping unit 4 is suspended from the tip of the upper arm 11. Reference numeral 12 is a regulation link that regulates the operation of the upper arm 11. Reference numeral 8 denotes a reciprocating hydraulic cylinder that raises and contracts the gripping unit 4 suspended from the tip of the elevating arm, rotates along the locus of R-1, and pulls out the gripped support column 3. Reference numeral 25 denotes a universal joint, which operates freely in the front-back and left-right directions, and the support column sandwiched between the sandwiching members always moves up and down in the vertical direction in a short time. The rotation of the elevating arm 7 is regulated by the regulation link 12 near the top dead center, the upper arm 11 is bent to form the locus of R-2, and the gripping unit 4 is inverted and tilted. At this time, the holding member 2 is opened by its own weight, and the support column 3 is released and stored on the mounting table 6.
FIG. 3 is a plan view with a part omitted, where 1 indicates a traveling vehicle, 15 is a top link, 16 is a pair of lower links to form a three-point link, and 14 connecting frames are supported. Reference numeral 5 denotes a machine frame body, which is fixed to the connecting frame of 14, and supports the support column pulling device of A. Reference numeral 23 denotes a base frame, which is extended in pairs in front of the machine frame body 5 on which the substrate 24 of the gripping unit 4 is placed. When the holding member 2 advances in the open state with the gripping unit 4 mounted on the base frame 23, the support column 3 is sandwiched. The traveling speed of the traveling vehicle 1 is provided with a control means corresponding to the work process time from the removal of the support column to the storage and loading, and in this embodiment, the hydraulically driven four-wheeled vehicle may be equivalent to the rotary tillage speed.
FIG. 4 shows a state immediately before the holding member 2 of the gripping unit 4 holds and pulls out the support column 3. The traveling vehicle 1 has a speed setting suitable for the cycle time of the extraction and storage of the support column extraction device A. When the hydraulic cylinder 8 extends with the support shaft -1 as the fulcrum, the elevating arm 12 moves up and down with the base shaft of 17 as the fulcrum, sandwiches the support column 3, and rises. At this time, the regulation link 12 regulates and bends the upper arm with 19 of the support shaft-2 as a fulcrum and 20 of the support shaft-3 on the upper arm 11 side as a fulcrum. 9 stops the upper arm 11 which is bent and inverted by the pad member. Reference numeral 25 denotes a universal joint, which is a member that suspends the gripping unit 4 at the tip of the upper arm 11, has a horizontal axis and a vertical axis, and moves freely in the front-rear and left-right directions, and always supports the sandwiching member 2 in the vertical direction.
FIG. 5 also shows a state immediately before the gripping unit 4 is inverted while the upper arm 11 is bent. Reference numeral 9 denotes a contact member provided on the upper surface of the elevating arm, which is a stopper when the upper arm 11 is inverted.
FIG. 6 also shows a state in which the upper arm 11 is inverted and tilted. A state in which the upper arm 11 is bent and collides with the contact member of 9, the substrate 24 of the gripping unit 4 is lowered by its own weight, the holding member 2 is opened to the left and right, the support column 3 is released, and the support is thrown into the mounting table of 9. Is shown.
FIG. 7 shows an explanatory view of the gripping unit 4. (A) shows a state in which the substrate 24 of the gripping unit 4 is placed on the base frame 23. When the upper arm 11 is slightly lowered while the substrate 24 is in contact with the base frame 23, the stay 26 is lowered and the link plate 27 is rotated. The link plate 7 rotates around the rotation shaft 28 as a fulcrum and stabilizes in a state where the left and right holding members 2 are opened. (B) shows a state in which the upper arm is slightly raised and the stay 26 rotates the link plate 27 in the direction of the arrow with respect to the substrate 24 to sandwich the support column 3. (C) shows a state in which the upper arm 11 collides with the bent contact member 9 and stops, and at that time, the gripping unit 4 is inverted, the link plate moves in the direction of the arrow, and the holding member 2 is opened. That is, the upper arm 11 of FIG. 6 described above collides with the contact member of the bend 9, the substrate 24 of the gripping unit 4 is lowered by its own weight, the holding member 2 is opened to the left and right, and the support column 3 is released. The columns 3 are put into the mounting table of 9 and aligned. The column 3 on which the mounting table 6 is mounted moves out of the field and is discharged to a place set by the rotary discharge means using a hydraulic cylinder.
FIG. 8 shows another embodiment, in which (a) is a configuration in which the upper arm 11 can be bent by an independent hydraulic cylinder with respect to the elevating arm 7. (B) A plan view of a configuration in which the holding action of the left and right holding members 2 of the gripping unit 4 is opened and closed by expansion and contraction of a hydraulic cylinder, and () shows a front view thereof, which is included in the gist of the present invention. Is.

以上の構成にしたので、長いも生育後の支柱抜き取り作業が一人で連続して簡易に圃場から搬出できるようになり便利である。With the above configuration, it is convenient because it is possible for one person to continuously and easily carry out the work of pulling out the stanchions after growing for a long time.

１は走行車
２は挟持部材
３は支柱
４は把持ユニット
５は機枠体
６は載置台
７は昇降アーム
８は油圧シリンダ
９は当て部材
１０はガイド体
１１は上部アーム
１２は規制リンク
１３は回動シリンダ
１４は連結フレーム
１５はトップリンク
１６はロアリンク
１７は基軸
１８は支軸−１
１９は支軸−２
２０は支軸−３
２１は折曲軸
２２は支持フレーム
２３はベースフレーム
２４は基板
２５は自在接手
２６はステイ
２７はリンク板
２８は回動軸
Ａは支柱引き抜き装置1 is a traveling vehicle 2 is a holding member 3 is a support 4 is a grip unit 5 is a machine frame body 6 is a mounting base 7 is an elevating arm 8 is a hydraulic cylinder 9 is a contact member 10 is a guide body 11 is an upper arm 12 is a regulation link 13 The rotating cylinder 14 has a connecting frame 15, the top link 16 has a lower link 17, and the base shaft 18 has a support shaft -1.
19 is the support shaft-2
20 is the support shaft-3
21 is a bending shaft 22 is a support frame 23 is a base frame 24 is a substrate 25 is a universal joint 26 is a stay 27 is a link plate 28 is a rotation shaft A is a support pulling device

Claims (4)

長いもの生育が終わった後の支柱引き抜き装置であって、走行手段に付設し、支柱を引き抜く為の左右挟持部材を有した把持ユニットと、把持ユニットを先端に支持した昇降アームと、前記昇降アームが上死点に達した後に、支柱を把持した把持ユニットから支柱が後方の貯留部へ移動され、支柱抜き取りより貯留搭載までを一連の連続動作としたことを特徴とした、長いも栽培等の支柱引き抜き装置。 A supporter pulling device after the growth of a long object, which is attached to a traveling means and has left and right holding members for pulling out the support, an elevating arm supporting the gripping unit at the tip, and the elevating arm. After reaching top dead center, the strut was moved from the gripping unit that gripped the strut to the rear storage section, and the strut was characterized by a series of continuous operations from the removal of the strut to the loading and unloading of the strut. Pulling device. 支柱を引き抜く為の把持ユニットは、昇降アームの先端に前後左右自在の継手を介して支持してなり支柱は垂直方向に短時間に昇降する請求項１記載の長いも栽培等の支柱引き抜き装置The gripping unit for pulling out the stanchion is supported on the tip of the elevating arm via a joint that can be freely moved forward, backward, left and right, and the stanchion moves up and down in the vertical direction in a short time. 走行手段の走行速度は支柱抜き取りから貯留搭載までの作業工程時間に対応する制御手段を具備した請求項２記載の長いも栽培等の支柱引き抜き装置The prop pulling device for long thigh cultivation, etc. according to claim 2, wherein the traveling speed of the traveling means is provided with a control means corresponding to the work process time from the removal of the support to the storage and loading. 昇降アームの上半部は折り曲げ可能に構成されて、昇降アームが上死点に達した後に上部アームが折れ曲がり把持ユニットが反転傾斜して後方の載置台へ支柱を放出することを特徴とした請求項３記載の長いも栽培等の支柱引き抜き装置The upper half of the elevating arm is configured to be bendable, and after the elevating arm reaches top dead center, the upper arm is bent and the gripping unit is inverted and tilted to discharge the support to the rear mounting table. Support pulling device for long thigh cultivation, etc. according to item 3.
JP2019038020A 2019-02-12 2019-02-12 Support pulling device for long-term cultivation, etc. Active JP6755006B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022048939A (en) * 2020-09-15 2022-03-28 株式会社苫米地技研工業 Lateral slide mechanism for pole pull out device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6857619B1 (en) * 2003-11-21 2005-02-22 Frank M. Jangula Post puller system
CN108575547A (en) * 2018-04-28 2018-09-28 王传祥 A kind of leg strut stringer of protecting trees from wind holder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6857619B1 (en) * 2003-11-21 2005-02-22 Frank M. Jangula Post puller system
CN108575547A (en) * 2018-04-28 2018-09-28 王传祥 A kind of leg strut stringer of protecting trees from wind holder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022048939A (en) * 2020-09-15 2022-03-28 株式会社苫米地技研工業 Lateral slide mechanism for pole pull out device

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