JP4677635B2 - Grooving device - Google Patents

Grooving device Download PDF

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JP4677635B2
JP4677635B2 JP2005345749A JP2005345749A JP4677635B2 JP 4677635 B2 JP4677635 B2 JP 4677635B2 JP 2005345749 A JP2005345749 A JP 2005345749A JP 2005345749 A JP2005345749 A JP 2005345749A JP 4677635 B2 JP4677635 B2 JP 4677635B2
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link
groove
grooving device
pantograph
grooving
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JP2007143531A (en
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包吉 相馬
直樹 千葉
正 石村
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Yamabiko Corp
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Description

本発明は、水田の水抜き用溝、その他、施肥溝、播種溝等を形成する溝切り装置に関する。   The present invention relates to a groove cutting device for forming a draining groove for paddy fields, a fertilizing groove, a sowing groove and the like.

従来、水田の水抜き用等の溝形成には、一条自走手押し式、あるいは、乗用管理機や田植え機等の後部に装着し、左右後輪の後に溝を形成する二条式の溝切り機が用いられている。   Conventionally, to form grooves for draining paddy fields, etc., a single-row self-propelled hand-operated type, or a double-row type grooving machine that is attached to the rear part of a riding management machine, rice planting machine, etc. and forms grooves after the left and right rear wheels Is used.

前記従来の二条式の溝切り機は、左右二つの作溝器間が一体に連結され、単一の昇降リンクによって左右同時に上下動する跳ね上げ方式のものであり、走行地面の形状、硬さ等の状況による左右両輪の沈下量の変化への適応性が悪く、溝形状が崩れてしまうという問題が残されていた。   The conventional two-row grooving machine is of a flip-up type in which the left and right groovers are integrally connected and move up and down simultaneously by a single lifting link, and the shape and hardness of the running ground The adaptability to changes in the amount of subsidence of the left and right wheels due to the above situation is poor, and the problem that the groove shape collapses remains.

したがって、同一圃場内で車輪の沈下量が変化してしまう様な条件下でも一定深さの溝切りを行えるようにするには、前記二条の作溝器の上下動、地面への進入角度を、走行中に自動的に調整する必要があり、そのための各種調整装置を必要とするなど、装置の複雑化を招くものであった。これらは播種装置においても同様であった。
特公平４−５２０８９号公報 Therefore, in order to allow grooving at a certain depth even under conditions where the amount of subsidence of the wheels changes within the same field, the vertical movement of the two groovers and the approach angle to the ground are set. Therefore, it is necessary to automatically adjust the vehicle during traveling, and various adjustment devices for the adjustment are required. These were the same in the seeding device.
Japanese Examined Patent Publication No. 4-52089

本発明は、前記事情に鑑み、二条一対の作溝器が走行中に互いに干渉し合うことなく地面の状況変化に追従して互いに独立に上下動し、したがって、地面の状況が変化しても、一方の作溝器による溝の深さが、他方の作溝器による溝の深さに影響をあたえることがなく、構成の簡素化された溝切り装置を提供することを目的とする。また、前記作溝器の地面に対する押圧力を容易且つ自由に調整できるとともに、走行中に状況が変化しても自動的に一定に維持できる溝切り装置を提供することを目的とする。 In view of the above circumstances, the present invention is based on the above-mentioned circumstances, and a pair of two groove generators move up and down independently following each other without interfering with each other while traveling. It is an object of the present invention to provide a grooving device having a simplified structure without the influence of the depth of the groove by one grooving device on the depth of the groove by the other grooving device. It is another object of the present invention to provide a grooving device that can easily and freely adjust the pressing force of the grooving device against the ground and that can be automatically maintained constant even if the situation changes during traveling.

前記目的達成のために、走行機体の左右後輪位置後部に、それぞれ一端部が前記走行機体に枢支され他端部が上下動自在とされた左右一対の上側平行リンクと、該上側平行リンクの前記他端部間に枢支された昇降リンクと、該昇降リンクの下部に枢支連結されて上下方向に伸縮するパンタグラフリンクと、該パンタグラフリンクの下部に支持された作溝器と、からなることを特徴とする（請求項１）。   To achieve the above object, a pair of left and right upper parallel links each having one end pivotally supported by the traveling machine body and the other end thereof being vertically movable at the rear part of the left and right rear wheel positions of the traveling machine body, and the upper parallel link An elevating link pivotally supported between the other end portions, a pantograph link that is pivotally connected to the lower portion of the elevating link and expands and contracts in the vertical direction, and a groove generator supported by the lower portion of the pantograph link. (Claim 1).

前記構成によれば、従来の跳ね上げ方式とは異なり、前記パンタグラフリンクが、走行中に地面に対して前記左右それぞれの作溝器を相互に独立して上下動させるため、該作溝器の進入角度は常に一定であり、さらに地面の状況に追従して垂直に上下動し、溝切り器に加えられる押圧力（土中へ押し込もうとする付勢力）の自動調整が行われる。該自動調整は、走行機体左右の車輪の沈下量の差等により傾いても有効である。   According to the configuration, unlike the conventional flip-up method, the pantograph link moves the left and right groove generators up and down independently of each other with respect to the ground during traveling. The approach angle is always constant, and further moves vertically up and down following the ground conditions, and automatic adjustment of the pressing force applied to the grooving device (the urging force to push into the soil) is performed. The automatic adjustment is effective even when the vehicle is tilted due to a difference in the amount of settlement of the left and right wheels of the traveling machine.

本発明の実施の一形態は、前記パングラフリンクを形成する内側平行リンクの上端延長部と前記昇降リンクとの間に、引っ張り力調整自在のスプリングを設けたことを特徴とする。（請求項２）。   One embodiment of the present invention is characterized in that a spring capable of adjusting a tensile force is provided between an upper end extension portion of an inner parallel link forming the pantograph link and the elevating link. (Claim 2).

前記実施の一形態によれば、地面に対する前記作溝器の押圧力を容易且つ自由に調整できる。すなわち、前記スプリングの引っ張り力を強くすれば、前記パンタグラフリンクを形成する前記下側平行リンクの下端部が前記後輪方向に向けて回動させられ、前記パンタグラフリンクの下部に支持された前記作溝器の押圧力が高められる。したがって、所望の深さの溝を形成することができる。   According to the embodiment, it is possible to easily and freely adjust the pressing force of the groove generator with respect to the ground. That is, if the tension of the spring is increased, the lower end of the lower parallel link forming the pantograph link is rotated toward the rear wheel, and the operation supported by the lower part of the pantograph link is performed. The pressing force of the groove is increased. Therefore, a groove having a desired depth can be formed.

本発明の実施の一形態は、前記作溝器が、前記パンタグラフリンクの下部に、前記走行機体の左右方向に首振り自在に支持されてなることを特徴とする（請求項３）。   One embodiment of the present invention is characterized in that the groover is supported at the lower part of the pantograph link so as to be swingable in the left-right direction of the traveling machine body (Claim 3).

前記実施の一形態によれば、走行機体の左右後輪のそれぞれの轍にそって前記作溝器が無理なく追従し、左右後輪の跡を消して溝を形成することができる。 According to the above-described embodiment, the groover can easily follow the left and right rear wheels of the traveling machine body, and the grooves can be formed by erasing the marks of the left and right rear wheels.

本発明の実施の一形態は、前記左右後輪位置にそれぞれある左右一対の前記上側平行リンクを単一のフレームに取着したことを特徴とする（請求項４）。 One embodiment of the present invention is characterized in that a pair of left and right upper parallel links respectively located at the left and right rear wheel positions are attached to a single frame.

前記実施例の一形態によれば、走行機体の左右後輪位置後部に設けられたそれぞれの前記溝切り装置に、それぞれアクチュエータを設ける必要がない。すなわち、溝切り作業終了時及び移動時、さらに作業開始時において、前記左右の両溝切り装置を単一のアクチュエータによって同時一体に昇降させることができ、構成の簡素化が図られる。  According to one embodiment of the present invention, it is not necessary to provide an actuator for each of the grooving devices provided at the rear portions of the left and right rear wheel positions of the traveling machine body. That is, at the end of the grooving operation, at the time of movement, and at the start of the operation, both the left and right grooving devices can be lifted and lowered simultaneously by a single actuator, and the configuration can be simplified.

本発明によれば、左右二条一対の作溝器が互いに干渉し合うことなく、走行中の地面の状況変化に追従して自在に上下動し、前記作溝器の進入角度を常に一定に維持し、作溝の自動調整が行われる。さらに、地面に対する作溝器の押圧力及び進入角度の調整が容易且つ自由であり、したがって、形成する溝の深さの調整が容易である。また、左右後輪の跡を消して溝を形成することができ、その他、装置の簡素化を図ることもできる。   According to the present invention, the pair of right and left groove forming devices move freely up and down following the change in the condition of the running ground without interfering with each other, and the approach angle of the groove forming device is always kept constant. The groove is automatically adjusted. Furthermore, it is easy and free to adjust the pressing force and the approach angle of the grooving device with respect to the ground, and therefore it is easy to adjust the depth of the groove to be formed. Further, the traces of the left and right rear wheels can be erased to form a groove, and in addition, the apparatus can be simplified.

以下、添付図面を参照して、本発明を実施するための一形態を説明する。図１は、本発明の一実施の形態に係る溝切り装置を搭載した走行機体の左側面図、図２は、同平面図、図３は、本発明の一実施の形態に係る溝切り装置の収納状態を示す左側面部分図、図４は、引っ張り力調整自在のスプリング及び作溝器部の拡大斜視図である。   Hereinafter, an embodiment for carrying out the present invention will be described with reference to the accompanying drawings. 1 is a left side view of a traveling machine equipped with a grooving device according to an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a grooving device according to an embodiment of the present invention. FIG. 4 is an enlarged perspective view of a spring and a groove forming portion that can adjust the tensile force.

図中、１は、ステアリングハンドル等の操縦装置３０を備えた乗用四輪形の走行機体であり、本発明の溝切り装置４０は、前記走行機体１の左右後輪２，２位置の後部の前記走行機体１に着脱自在な単一フレーム２３に取着搭載される。図面実施例では、該単一のフレーム２３の前記左右後輪２，２位置に、それぞれ支柱３，３が起立固定させられ、該支柱３，３にそれぞれ前記溝切り装置４０，４０が左右で一対をなして支持されている。なお、前記両支柱３，３に取着される構成はそれぞれ同一であるので、以下にその一方の構成を説明する。 In the figure, reference numeral 1 denotes a riding four-wheeled traveling machine body equipped with a steering device 30 such as a steering handle, and the grooving device 40 of the present invention includes the rear left and right wheels 2 of the traveling machine body 2 at the rear of the position. It is mounted on a single frame 23 that is detachable from the traveling machine body 1. In the embodiment shown in the drawing, the pillars 3 and 3 are erected and fixed at the positions of the left and right rear wheels 2 and 2 of the single frame 23, respectively. A pair is supported. In addition, since the structure attached to both said support | pillars 3 and 3 is respectively the same, the structure of one is demonstrated below.

前記支柱３には、上側平行リンク４，４のそれぞれ一端部４ａ，４ａが枢支され他端部４ｂ，４ｂが上下動自在に構成される。該他端部４ｂ，４ｂ間に上下方向に伸びる昇降リンク５が枢支連結され、前記走行機体１と前記平行リンク４，４の一方との間に設けられた油圧あるいは電動シリンダ等のアクチュエータ６によって、前記昇降リンク５が昇降作動される。   One end portions 4a and 4a of the upper parallel links 4 and 4 are pivotally supported on the column 3, and the other end portions 4b and 4b are configured to be movable up and down. An elevating link 5 extending in the vertical direction is pivotally connected between the other end portions 4b and 4b, and an actuator 6 such as a hydraulic or electric cylinder provided between the traveling machine body 1 and one of the parallel links 4 and 4. As a result, the elevating link 5 is moved up and down.

つぎに、該昇降リンク５の下部に、上下方向に伸縮するパンタグラフリンク７が枢支連結される。図面実施例では、前記昇降リンク５の下部が、内側、すなわち、前記左右後輪２方向に所定角度に折り曲げられた折曲片部５ａに、前記パンタグラフリンク７を構成する外側平行リンク７a及び内側平行リンク７ｂの上端部８，８が枢支されている。   Next, a pantograph link 7 extending and contracting in the vertical direction is pivotally connected to the lower portion of the elevating link 5. In the embodiment of the drawings, the lower part of the elevating link 5 is formed on the inner side, that is, the outer parallel link 7a constituting the pantograph link 7 and the inner side of the bent piece part 5a bent at a predetermined angle in the direction of the left and right rear wheels 2. The upper ends 8, 8 of the parallel link 7b are pivotally supported.

さらに、前記パンタグラフリンク７を構成する前記内側平行リンク７ｂの前記上端部８が枢着点８ａを越えて上方へ延長された上端該延長部７ｃの上端７ｄと前記昇降リンク５の中間点５ａとの間に、引っ張り力調整自在のスプリング９が設けられる。   Furthermore, the upper end portion 8c of the inner parallel link 7b constituting the pantograph link 7 extends upward beyond the pivot point 8a, the upper end 7d of the extension portion 7c, and the intermediate point 5a of the lift link 5; In between, a spring 9 capable of adjusting the pulling force is provided.

なお、該スプリング９の引っ張り力調整は、例えば、図４に示すように、前記スプリング９の一端９ａにねじ杆１０を連結し、前記内側平行リンク７ｂの前記上端７ｄに透孔１１を設け、該透孔１１に前記ねじ杆１０を挿通し、前記透孔１１から突出した前記ねじ杆１０に調整ナット１２を螺合し、該調整ナット１２を回して締付ける等して行うことができる。   For example, as shown in FIG. 4, the tension of the spring 9 is adjusted by connecting a screw rod 10 to one end 9a of the spring 9, and providing a through hole 11 in the upper end 7d of the inner parallel link 7b. The screw rod 10 can be inserted into the through hole 11, the adjustment nut 12 can be screwed into the screw rod 10 protruding from the through hole 11, and the adjustment nut 12 can be turned and tightened.

つぎに、前記パンタグラフリンク７の下部に、作溝器１３が支持される。該作溝器１３は、略船形に構成され、実施例では、前記パンタグラフリンク７の下部に、前記走行機体１の左右方向に首振り自在に支持されている。   Next, a groover 13 is supported at the lower part of the pantograph link 7. The grooving device 13 is configured in a substantially ship shape, and in the embodiment, is supported at the lower part of the pantograph link 7 so as to swing freely in the left-right direction of the traveling machine body 1.

すなわち、前記パンタグラフリンク７を構成する前記外側平行リンク７ａと前記内側平行リンク７ｂの下端部１４，１４間に、前記垂直昇降リンク５の折曲部５ａと平行を保って上下動リンク１５が枢支され、該上下動リンクの１５の下方延長部１５ａに垂直軸１６を下向きに連結し、該垂直軸１６を、前記作溝器１３側に設けた軸受部１７に嵌合し、抜け落ちることが無く、左右方向に所定角度範囲（例えば、左右へそれぞれ３５°程度）で首振り自在であり、且つ着脱自在に取り付けられている。 That is, the vertically moving link 15 is pivoted between the outer parallel link 7a constituting the pantograph link 7 and the lower end portions 14, 14 of the inner parallel link 7b so as to be parallel to the bent portion 5a of the vertical lift link 5. The vertical shaft 16 is connected downward to the downward extension 15a of the vertically moving link 15 and is fitted into the bearing portion 17 provided on the groove forming device 13 side, so that the vertical shaft 16 can fall off. There is no swing, and the head can be swung freely within a predetermined angle range in the left-right direction (for example, about 35 ° to the left and right respectively), and is detachably attached.

さらに、実施例では、前記作溝器１３は、地面Ｇに対する進入角度が調整自在に構成されている。すなわち、図４に示すように、前記軸受部１７に固着されたブラケット１８に、前記作溝器１３の本体側に設けたブラケット１９が重合させられ、両ブラケット１８，１９の前方適位置に支軸２０が貫通保持され、前記本体側ブラケット１９の後側に複数の調整孔２１が前記支軸２０を中心とする円弧状に形成されている。また、該複数の調整孔２１が対応する前記軸受部側ブラケット１８には、図示されていないが、貫通孔が一個設けられている。図中、２２は調整ピンである。 Furthermore, in the embodiment, the groove producing device 13 is configured such that the approach angle with respect to the ground G is adjustable. That is, as shown in FIG. 4, the bracket 19 provided on the main body side of the groover 13 is superposed on the bracket 18 fixed to the bearing portion 17 so that the brackets 18 and 19 are supported at appropriate positions in front. A shaft 20 is penetrated and held, and a plurality of adjustment holes 21 are formed in an arc shape centering on the support shaft 20 on the rear side of the main body side bracket 19. Further, although not shown, the bearing-side bracket 18 to which the plurality of adjustment holes 21 correspond is provided with one through hole. In the figure, 22 is an adjustment pin.

前記構成において、前記調整ピン２２を抜き取ると、前記作溝器１３の本体は、前記支軸２０を中心に、その後方が上下動する。その後、前記複数の調整孔２１の一つを選択して、前記調整ピン２２を前記軸受部側ブラケット１８の前記貫通孔に挿通し、固定することによって、図示例の場合には、三段階に前記作溝器１３の地面Ｇに対する進入角度を調整することができる構成になっている。なお、２４は、前記作溝器１３を中央位置に固定する首振り固定ピンである。   In the above configuration, when the adjustment pin 22 is extracted, the main body of the groover 13 moves up and down around the support shaft 20. Thereafter, one of the plurality of adjustment holes 21 is selected, and the adjustment pin 22 is inserted into the through-hole of the bearing-side bracket 18 and fixed. The entrance angle of the groover 13 with respect to the ground G can be adjusted. Reference numeral 24 denotes a swinging fixing pin for fixing the groover 13 at a central position.

前記構成において、格納あるいは移動時には、図３に示すように、前記アクチュエータ６が伸長させられ、その結果、前記上側平行リンク４，４の前記他端部４ｂ，４ｂが上昇させられ、該他端部４ｂ，４ｂの上昇に伴って、前記パンタグラフリンク７が引き上げられて、前記作溝器１３が作業時形態を保ったままの状態（水平状態）で地面Ｇから十分に離れた位置まで上昇させられている。   In the above configuration, at the time of storing or moving, as shown in FIG. 3, the actuator 6 is extended, and as a result, the other end portions 4b and 4b of the upper parallel links 4 and 4 are raised, and the other end As the parts 4b and 4b rise, the pantograph link 7 is pulled up to raise the groover 13 to a position sufficiently away from the ground G in a state (horizontal state) while maintaining the working form. It has been.

つぎに、作溝開始時には、図１に示すように、前記アクチュエータ６が収縮させられ、前記作溝器１３が接地される。さらに、溝切りを行う地面Ｇの形状、硬さ等の状況に合わせて、前記スプリング９の引っ張り力が調整され、さらに、必要に応じて前記作溝器１３の地面Ｇに対する進入角度が調整され、前記走行機体１を走行させて所望の形態の溝Ｄの溝切りが行われる。   Next, at the start of groove formation, as shown in FIG. 1, the actuator 6 is contracted and the groove generator 13 is grounded. Further, the pulling force of the spring 9 is adjusted in accordance with the shape, hardness, etc. of the ground G to be grooved, and the approach angle of the groove generator 13 to the ground G is adjusted as necessary. Then, the traveling machine body 1 is caused to travel, and the groove D having a desired shape is cut.

前記溝切り作業において、本発明では、左右二条一対の前記作溝器１３，１３が個別に作動するので、互いに干渉することがない。すなわち、それぞれの作溝器１３が、前記パンタグラフ７の作用によって地面Ｇの状況に追従して垂直に上下動する。したがって、地面Ｇの状況が異なる場合に、一方の作溝器１３による溝Ｄの深さが他方の前記作溝器１３による溝Ｄの深さ等に影響を与えることがなく、さらに、地面Ｇに対する進入角度を一定に保って、均一深さの作溝が自動調整のもとに行われる。また、左右いずれか一方のみでの作溝もできる。   In the grooving operation, in the present invention, the pair of left and right groove forming devices 13 and 13 are individually operated, so that they do not interfere with each other. That is, each groover 13 moves vertically up and down following the condition of the ground G by the action of the pantograph 7. Therefore, when the situation of the ground G is different, the depth of the groove D by one groove producing device 13 does not affect the depth of the groove D by the other groove producing device 13 and the like. Grooves of uniform depth are performed under automatic adjustment while keeping the approach angle to the constant. Grooves can be made only on either the left or right side.

なお、例えば、前記左右の昇降リンク５，５を適宜の手段で連結せしめれば、単一のアクチュエータ６で、左右の作溝器１３，１３を同時に昇降させることもできる。   For example, if the right and left elevating links 5 and 5 are connected by an appropriate means, the left and right groove forming devices 13 and 13 can be simultaneously moved up and down by a single actuator 6.

本発明の一実施の形態に係る溝切り装置を搭載した走行機体の左側面図である。It is a left view of the traveling body which mounts the grooving device concerning one embodiment of the present invention. 本発明の一実施の形態に係る溝切り装置を搭載した走行機体の平面図であるIt is a top view of the traveling body which mounts the grooving device concerning one embodiment of the present invention. 本発明の一実施の形態に係る溝切り装置の収納状態を示す左側面部分図である。It is a left side fragmentary view which shows the accommodation state of the grooving apparatus which concerns on one embodiment of this invention. 引っ張り力調整自在のスプリング及び作溝器部の拡大斜視図である。FIG. 5 is an enlarged perspective view of a spring and a groove forming unit that can adjust a pulling force.

符号の説明Explanation of symbols

１ 走行機体
２，２ 左右後輪
４，４ 上側平行リンク
４ａ,４ａ （上側平行リンクの）一端部
４ｂ，４ｂ （上側平行リンクの）他端部
５ 昇降リンク
５ａ （昇降リンクの）下部
７ パンタグラフリンク
７ｂ （パンタグラフリンクの）内側平行リンク
７ｃ （内側平行リンクの）上端延長部
９ スプリング
１３ 作溝器
２３ 単一フレーム
Ｇ 地面 DESCRIPTION OF SYMBOLS 1 Traveling machine body 2, 2 Left and right rear wheels 4, 4 Upper parallel link 4a, 4a (Upper parallel link) One end 4b, 4b (Upper parallel link) Other end 5 Lifting link 5a (Up / down link) Lower part 7 Pantograph Link 7b Inner parallel link (of pantograph link) 7c Upper end extension (of inner parallel link) 9 Spring 13 Groover 23 Single frame G Ground

Claims (4)

走行機体（１）の左右後輪（２，２）位置後部に、それぞれ一端部（４ａ,４ａ）が前記走行機体（１）に枢支され他端部（４ｂ，４ｂ）が上下動自在とされた左右一対の上側平行リンク（４，４）と、該上側平行リンク（４，４）の前記他端部（４ｂ，４ｂ）間に枢支連結された昇降リンク（５）と、該昇降リンク（５）の下部（５ａ）に枢支連結されて上下方向に伸縮するパンタグラフリンク（７）と、該パンタグラフリンク（７）の下部に支持された作溝器（１３）と、からなることを特徴とする溝切り装置。 One end (4a, 4a) is pivotally supported by the traveling machine body (1) at the rear of the left and right rear wheels (2, 2) of the traveling machine body (1), and the other end part (4b, 4b) is vertically movable. A pair of left and right upper parallel links (4, 4), a lift link (5) pivotally connected between the other end portions (4b, 4b) of the upper parallel link (4, 4), and the lift It consists of a pantograph link (7) that is pivotally connected to the lower part (5a) of the link (5) and expands and contracts in the vertical direction, and a groover (13) supported by the lower part of the pantograph link (7). A grooving device. 前記パンタグラフリンク（７）を形成する内側平行リンク（７ｂ）の上端延長部（７ｃ）と前記昇降リンク（５）との間に引っ張り力調整自在のスプリング（９）を設けたことを特徴とする請求項１に記載の溝切り装置。 A spring (9) capable of adjusting a tensile force is provided between an upper end extension (7c) of an inner parallel link (7b) forming the pantograph link (7) and the elevating link (5). The grooving device according to claim 1. 前記作溝器（１３）が、前記パンタグラフリンク（７）の下部に、前記走行機体（１）の左右方向に首振り自在に支持されてなることを特徴とする請求項１又は２に記載の溝切り装置。 The said groove producing device (13) is supported by the lower part of the said pantograph link (7) so that a swing is possible in the left-right direction of the said traveling body (1), The Claim 1 or 2 characterized by the above-mentioned. Grooving device. 前記左右後輪（２,２）位置にそれぞれある左右一対の前記上側平行リンク（４，４）を単一のフレーム２３に取着したことを特徴とする請求項１，２又は３に記載の溝切り装置。 The pair of left and right upper parallel links (4, 4) respectively located at the positions of the left and right rear wheels (2, 2) are attached to a single frame 23. Grooving device.
JP2005345749A 2005-11-30 2005-11-30 Grooving device Expired - Fee Related JP4677635B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016526902A (en) * 2013-08-02 2016-09-08 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Equipment for planting and processing seedlings of agricultural plants

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929122U (en) * 1982-08-18 1984-02-23 株式会社クボタ rice transplanter
JPS6264205U (en) * 1985-10-08 1987-04-21
JPS6350514U (en) * 1986-09-19 1988-04-05
JPH0452089B2 (en) * 1983-07-30 1992-08-20 Iseki Agricult Mach
JPH04133105U (en) * 1991-05-30 1992-12-10 株式会社クボタ Grooving machine for paddy fields
JPH07289053A (en) * 1994-04-26 1995-11-07 Kubota Corp Sulky lawn mower

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929122U (en) * 1982-08-18 1984-02-23 株式会社クボタ rice transplanter
JPH0452089B2 (en) * 1983-07-30 1992-08-20 Iseki Agricult Mach
JPS6264205U (en) * 1985-10-08 1987-04-21
JPS6350514U (en) * 1986-09-19 1988-04-05
JPH04133105U (en) * 1991-05-30 1992-12-10 株式会社クボタ Grooving machine for paddy fields
JPH07289053A (en) * 1994-04-26 1995-11-07 Kubota Corp Sulky lawn mower

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016526902A (en) * 2013-08-02 2016-09-08 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Equipment for planting and processing seedlings of agricultural plants

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