JP3022889U - Tillage axis in a tiller - Google Patents
Tillage axis in a tillerInfo
- Publication number
- JP3022889U JP3022889U JP1995009142U JP914295U JP3022889U JP 3022889 U JP3022889 U JP 3022889U JP 1995009142 U JP1995009142 U JP 1995009142U JP 914295 U JP914295 U JP 914295U JP 3022889 U JP3022889 U JP 3022889U
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- insertion portion
- polygonal
- cultivating
- cultivator
- 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.)
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Abstract
(57)【要約】
【課題】 耕耘機の動力伝動ケースから突出した耕耘軸
に耕耘刃を複数備えた耕耘作業体又は車輪等の交換作業
を簡易且つ迅速に行うことができるようにすること。
【解決手段】 耕耘機における動力伝動ケース３より突
出し、その先端側を断面略円形の挿入部５とし、該挿入
部５に連続した基部側を多角軸部４とすること。挿入部
５と多角軸部４とに、先端側から基部側に向かって次第
に軸径が拡大するテーパー部６を形成すること。挿入部
５の直径を多角軸部４の仮想内接円４ｄの直径と同等す
ること。或いは挿入部５の直径を多角軸部４の仮想内接
円４ｄより僅かに大きくし、挿入部５には多角軸部４の
各側面と同一平面となる複数の帯状支持面５ａ，５ａ，
…を形成すること。
(57) 【Abstract】 PROBLEM TO BE SOLVED: To enable easy and quick exchange work of a cultivating work body or a wheel having a plurality of cultivating blades on a cultivating shaft protruding from a power transmission case of a cultivator. SOLUTION: The power transmission case 3 in the cultivator is projected from the power transmission case 3, the tip side thereof is an insertion portion 5 having a substantially circular cross section, and the base portion side continuous with the insertion portion 5 is a polygonal shaft portion 4. Forming a tapered portion 6 on the insertion portion 5 and the polygonal shaft portion 4, the shaft diameter of which gradually increases from the tip side toward the base side. The diameter of the insertion portion 5 should be equal to the diameter of the virtual inscribed circle 4d of the polygonal shaft portion 4. Alternatively, the diameter of the insertion portion 5 is slightly larger than the virtual inscribed circle 4d of the polygonal shaft portion 4, and the insertion portion 5 has a plurality of strip-shaped support surfaces 5a, 5a, which are flush with the respective side surfaces of the polygonal shaft portion 4.
Forming ...
Description
【０００１】[0001]
本考案は、耕耘機の動力伝動ケースから突出し、車輪，耕耘刃を複数備えた耕 耘作業体等の交換作業を簡易且つ迅速に行うことができる耕耘機における耕耘軸 に関する。 The present invention relates to a cultivating shaft for a cultivator capable of easily and quickly exchanging a cultivating body having a plurality of wheels and a plurality of cultivating blades protruding from a power transmission case of the cultivator.
【０００２】[0002]
従来より、耕耘機（ロータリー式も含む）の動力伝動ケースの左右両側より突 出する耕耘軸にはその種々の作業状況に応じて車輪，耕耘機刃を複数備えた耕耘 作業体等の走行用或いは耕耘作業用のアタッチメントを装着している。その耕耘 軸は、軸方向に直交する断面形状が六角形，正方形等の多角形に形成されており 、アタッチメント側には、耕耘軸が挿入する多角形状の軸挿入孔が設けられてい る。その軸挿入孔は耕耘軸がほとんどガタが生じない程度の大きさである。 Conventionally, a cultivating shaft protruding from the left and right sides of a power transmission case of a cultivator (including a rotary type) is used for traveling such as a cultivating work body having a plurality of wheels and cultivator blades according to various working situations. Or it is equipped with an attachment for tillage work. The cultivating shaft has a polygonal cross section orthogonal to the axial direction, such as a hexagon or a square, and the attachment side is provided with a polygonal shaft inserting hole into which the cultivating shaft is inserted. The shaft insertion hole has a size such that the cultivating shaft hardly looses.
【０００３】 このようなアタッチメントを走行用から耕耘作業用のもの、或いはその逆も含 めて交換する作業は畑等の耕地で作業員が一人で行っている。その交換手順を、 たとえば車輪から耕耘作業体に交換する場合について述べると、耕耘機の左右い ずれか一方側から他方側へ傾けるようにして作業員が手で支え、動力伝動ケース の左右一方側の車輪を支点とし、他方側の車輪を地面から浮き上がらせる。A worker alone performs the work of exchanging such an attachment for traveling or tilling, or vice versa, on cultivated land such as a field. The replacement procedure is described, for example, when replacing a wheel with a cultivator body. One of the left and right sides of the power transmission case is supported by the operator by tilting the cultivator from one side to the other side. The wheel of is used as a fulcrum, and the wheel on the other side is lifted from the ground.
【０００４】 次に、その浮き上がった側の車輪を耕耘軸から外す。この作業は作業員の片手 に行うこととなる。次に、作業員は耕耘作業体を手にして、該耕耘作業体の軸挿 入孔を有する回転軸を耕耘軸と同一方向に設定して、軸挿入孔に耕耘軸を挿入す る。そして、回転軸は、その軸挿入孔に挿入した耕耘軸とともに連結用の止ピン を差し込み固定するものである。以上の作業は、図１９乃至図２２の手順によっ て行われる。Next, the wheel on the raised side is removed from the tillage shaft. This work is done with one hand of the worker. Next, the worker holds the tilling work body in hand, sets the rotary shaft having the shaft inserting hole of the tilling work body in the same direction as the tilling shaft, and inserts the tilling shaft into the shaft inserting hole. Then, the rotary shaft is for fixing the connecting pin together with the tilling shaft inserted into the shaft insertion hole. The above work is performed according to the procedure shown in FIGS.
【０００５】[0005]
【考案が解決しようとする課題】 上記作業では、作業員は常時、耕耘機の一つの車輪又は耕耘作業体が地面から 浮き上がった状態となるようにするために片手で耕耘機を押さえているので、片 手は塞がっている。それゆえに、車輪，耕耘作業体等のアタッチメントの交換は 片手のみで行わなければならない。この作業時において、一般に地面が不安定で ある。さらに、その耕耘作業体は重たく作業員にとっては負担がかかりすぎる。 また、耕耘機を片手で前方に傾け、左右両方の車輪又は耕耘作業体を上げて、交 換するとも、同様に作業員にとって大きな負担がかかる。[Problems to be Solved by the Invention] In the above-mentioned work, since the worker always holds the cultivator with one hand so that one wheel of the cultivator or the cultivating work body is lifted from the ground, , One hand is closed. Therefore, attachments such as wheels and tillers must be replaced with only one hand. The ground is generally unstable during this operation. Further, the tilling work body is heavy and too burdensome for the worker. Further, even if the cultivator is tilted forward with one hand and both the left and right wheels or the cultivating work body are raised and replaced, a similar heavy burden is imposed on the worker.
【０００６】 また、耕耘軸とアタッチメントの回転軸の軸挿入作業は互いに断面が六角形， 正方形等の多角形同士であり、且つガタが生じないようにしているために、挿入 時のアソビが極端に少ないため、それぞれの角が完全合致しないと軸挿入孔に耕 耘軸が入らない。さらに、抜け止ピンの位置を考慮する必要があるためアタッチ メントの交換作業はより一層困難且つ面倒なものとなり、肉体的疲労や精神的疲 労が重なり、とても作業員一人で容易に行い得るものではない。In addition, since the shaft inserting work of the cultivating shaft and the rotating shaft of the attachment are polygons each having a hexagonal shape, a square shape, or the like, and the play is prevented from occurring, the play at the time of insertion is extremely difficult. Since there are few, the cultivating shaft cannot be inserted into the shaft insertion hole unless the corners match perfectly. Furthermore, since it is necessary to consider the position of the retaining pin, the work of exchanging the attachment becomes even more difficult and troublesome, and physical fatigue and mental exhaustion are superimposed, and it is very easy for one worker to do. is not.
【０００７】[0007]
そこで、考案者は上記課題を解決すべく鋭意，研究を重ねた結果、本考案を耕 耘機における動力伝動ケースより突出し、その先端側を断面略円形の挿入部とし 、該挿入部に連続した基部側を多角軸部として形成し、また前記挿入部と多角軸 部とに、先端側から基部側に向かって次第に軸径が拡大するテーパー部を形成し たり、前記挿入部の直径を、前記多角軸部の仮想内接円の直径と同等としたり、 或いは前記挿入部の直径を、前記多角軸部の仮想内接円より僅かに大きくし、そ の挿入部には前記多角軸部の各側面と同一平面となる複数の帯状支持面を形成す る等とした耕耘機における耕耘軸としたことにより、車輪，耕耘刃を複数備えた 耕耘作業体等の交換作業を簡易且つ迅速に行うことができ、上記課題を解決した ものである。 Therefore, as a result of earnest studies and researches to solve the above-mentioned problems, the inventor has made the present invention project from the power transmission case in the cultivator, and the tip side of the invention is an insertion part having a substantially circular cross section, which is continuous to the insertion part. The base portion side is formed as a polygonal shaft portion, and the insertion portion and the polygonal shaft portion are formed with a tapered portion whose shaft diameter gradually increases from the distal end side toward the base portion side, or the diameter of the insertion portion is The diameter of the virtual inscribed circle of the polygonal shaft portion is made equal, or the diameter of the insertion portion is made slightly larger than the virtual inscribed circle of the polygonal shaft portion, and the insertion portion is provided with each of the polygonal shaft portions. By using a cultivating shaft in a cultivator such as forming a plurality of strip-shaped supporting surfaces that are flush with the side surface, it is possible to easily and quickly perform the replacement work of a cultivating work body equipped with a plurality of wheels and cultivating blades. It is possible to solve the above problems.
【０００８】[0008]
以下、本考案の実施の形態を図面に基づいて説明する。まず、エンジン１がフ レーム２上に搭載されている。そのエンジン１からの駆動は、プーリー，ベルト ，チェーン等の機構を内装した動力伝動ケース３等の伝達機構を介してフレーム ２より下方位置の耕耘軸Ａを駆動している（図１参照）。また、エンジン１から の動力をドライブシャフトを介して耕耘軸Ａに伝達する構造のタイプが存在する （図１７参照）。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, the engine 1 is mounted on the frame 2. The drive from the engine 1 drives the cultivating shaft A located below the frame 2 through a transmission mechanism such as a power transmission case 3 in which mechanisms such as a pulley, a belt and a chain are installed (see FIG. 1). There is also a type of structure in which the power from the engine 1 is transmitted to the tilling shaft A via the drive shaft (see Fig. 17).
【０００９】 このタイプのものでは、フレーム２下の車軸は走行専用の走行用軸１６となり 、タイヤが装着されている。その操作ハンドル１５は、前記エンジン１を搭載し た箇所のフレーム２に設けた突部又はケーシング部箇所から後方上向きに傾斜し 、複数段階に昇降角度調節可能に設けられ、その昇降角度は、作業員の背丈や作 業状況に合わせて所望の位置で固定自在に設けられている。また、操作ハンドル １５は、最も適した位置に設定することができる（図１参照）。In this type, the axle under the frame 2 is a traveling axle 16 dedicated to traveling, and tires are attached to it. The operation handle 15 is tilted upward and rearward from a protrusion provided on the frame 2 where the engine 1 is mounted or a casing portion, and is provided so that the elevation angle can be adjusted in multiple steps. It is fixed so that it can be fixed at any desired position according to the height of the staff and the work situation. Further, the operation handle 15 can be set at the most suitable position (see FIG. 1).
【００１０】 その動力伝動ケース３には、耕耘軸Ａが左右両側に突出するように設けられて いる。該耕耘軸Ａの軸方向中央にはチェーンスプロケットが設けられ、動力伝動 ケース３内部に収納される〔図１（Ａ）参照〕。その耕耘軸Ａには、農作業にお いては耕耘刃１２を備えた耕耘筒１１を装着し、耕耘作業を行うものであるが、 また車輪を装着して一般道路を走行することもできる。その耕耘軸Ａは、図１（ Ａ）及び（Ｂ）等に示すように、多角軸部４と断面略円形の挿入部５とから構成 されている。The power transmission case 3 is provided with a tilling shaft A so as to project to the left and right sides. A chain sprocket is provided at the center of the cultivating shaft A in the axial direction and is housed inside the power transmission case 3 (see FIG. 1 (A)). In the cultivating work, the cultivating cylinder 11 equipped with the cultivating blade 12 is mounted on the cultivating shaft A to perform the cultivating work, but it is also possible to mount wheels to drive on a general road. The cultivating shaft A is composed of a polygonal shaft portion 4 and an insertion portion 5 having a substantially circular cross section, as shown in FIGS.
【００１１】 そして、動力伝動ケース３の左右両側より耕耘軸Ａが突出する部分を基部側と 称する。その多角軸部４は、軸方向に直交する断面形状が種々の多角形に形成さ れているが、特に六角形或いは正方形が好適である。また、多角軸部４のその他 の断面形状としては三角形〔図１４（Ａ）参照〕，五角形〔図１４（Ｂ）参照〕 或いは八角形〔図１４（Ｃ）参照〕等の形状のものが存在する。本考案の実施形 態は、多角軸部４の軸方向に直交する断面を主に六角形として説明してゆく。The portion where the tilling shaft A projects from the left and right sides of the power transmission case 3 is called the base side. The polygonal shaft portion 4 is formed in various polygonal cross-sectional shapes orthogonal to the axial direction, but a hexagonal shape or a square shape is particularly preferable. Other cross-sectional shapes of the polygonal shaft portion 4 include a triangular shape (see FIG. 14A), a pentagonal shape (see FIG. 14B), and an octagonal shape (see FIG. 14C). To do. In the embodiment of the present invention, the cross section orthogonal to the axial direction of the polygonal shaft portion 4 will be mainly described as a hexagon.
【００１２】 その挿入部５は、軸方向に直交する断面形状が円形である（図１参照）。その 挿入部５と多角軸部４とは連続して形成されている。即ち、多角軸部４から挿入 部５までを一体的に形成してもよいし、或いは挿入部５を別部材として多角軸部 ４の軸端に溶接手段等にて固着してもよい。その多角軸部４と挿入部５との境目 では先端側から基部側に向かって次第に軸径が拡大するテーパー部６が形成され ている。該テーパー部６は、具体的には多角軸部４の角部と挿入部５の外径円周 面との間に存在する。即ち、テーパー部６は多角軸部４との間に設けられている 〔図１及び図４（Ａ）参照〕。The insertion portion 5 has a circular cross-sectional shape orthogonal to the axial direction (see FIG. 1). The insertion portion 5 and the polygonal shaft portion 4 are continuously formed. That is, the polygonal shaft portion 4 to the insertion portion 5 may be integrally formed, or the insertion portion 5 may be a separate member and fixed to the shaft end of the polygonal shaft portion 4 by welding means or the like. At the boundary between the polygonal shaft portion 4 and the insertion portion 5, there is formed a taper portion 6 whose shaft diameter gradually increases from the distal end side toward the base side. Specifically, the tapered portion 6 exists between the corner of the polygonal shaft portion 4 and the outer circumferential surface of the insertion portion 5. That is, the tapered portion 6 is provided between the polygonal shaft portion 4 and the polygonal shaft portion 4 [see FIGS. 1 and 4 (A)].
【００１３】 また、挿入部５の直径Ｄ1 は、前記多角軸部４に軸方向に直交する断面（六角 形断面）に内接する仮想内接円４ｄの直径Ｄ2 よりも僅かに大きくしたものであ る〔図４（Ｂ）参照〕。そして、その挿入部５には前記多角軸部４の多角形状を 構成する各側面と同一平面となる複数の帯状支持面５ａ，５ａ，…が形成される 〔図１（Ｂ）及び図４（Ａ）参照〕。該帯状支持面５ａの拡大図を図４（Ｃ）に 示している。そして、仮想内接円４ｄは想像線（二点鎖線）にて示しており、挿 入部５は実線にて示している。その仮想内接円４ｄを示す想像線が挿入部５より も直径が僅かに小さいことが示されている。The diameter D 1 of the insertion portion 5 is slightly larger than the diameter D 2 of the virtual inscribed circle 4d inscribed in the cross section (hexagonal cross section) orthogonal to the polygonal shaft portion 4 in the axial direction. [See FIG. 4 (B)]. A plurality of strip-shaped support surfaces 5a, 5a, ... Which are flush with the respective side surfaces forming the polygonal shape of the polygonal shaft portion 4 are formed in the insertion portion 5 [FIG. 1 (B) and FIG. 4 ( See A)]. An enlarged view of the strip-shaped support surface 5a is shown in FIG. 4 (C). The virtual inscribed circle 4d is shown by an imaginary line (two-dot chain line), and the insertion part 5 is shown by a solid line. It is shown that the imaginary line showing the virtual inscribed circle 4d has a diameter slightly smaller than that of the insertion portion 5.
【００１４】 その帯状支持面５ａ，５ａ，…は、挿入部５の円周側面に略等間隔に形成され ることとなる。例えば、多角軸部４の軸方向に直交する断面を六角形状とした実 施形態では挿入部５には六本の帯状支持面５ａ，５ａ，…が形成されることとな る。その帯状支持面５ａ，５ａ，…は、後述するアタッチメントＢの多角形状の 内周側面を有する回転軸１０を軸方向に沿ってガタが生じないように支持するも のである。その多角軸部４にはアタッチメントＢを装着した後に外止めとして使 用する固定ピン１４のための固定用貫通孔４ａが形成されている。また、挿入部 ５にも固定用貫通孔５ｂが形成され、さらに挿入部５の先端箇所は面取仕上げと なっている。その帯状支持面５ａ，５ａ，…は、必ずしも挿入部５に形成するも のではなく、必要に応じて設けないタイプのものも存在する〔図１（Ｂ）及び図 １３（Ｂ）参照〕。The band-shaped support surfaces 5a, 5a, ... Are formed on the circumferential side surface of the insertion portion 5 at substantially equal intervals. For example, in the embodiment in which the cross section orthogonal to the axial direction of the polygonal shaft portion 4 is hexagonal, the insertion portion 5 is formed with six strip-shaped support surfaces 5a, 5a, .... The band-shaped support surfaces 5a, 5a, ... Support the rotary shaft 10 having the polygonal inner peripheral side surface of the attachment B, which will be described later, along the axial direction so as to prevent backlash. The polygonal shaft portion 4 is formed with a fixing through hole 4a for a fixing pin 14 which is used as an external stopper after the attachment B is mounted. A fixing through hole 5b is also formed in the insertion portion 5, and the tip of the insertion portion 5 is chamfered. The band-shaped support surfaces 5a, 5a, ... Are not necessarily formed on the insertion portion 5, and there are types that are not provided as needed [see FIGS. 1 (B) and 13 (B)].
【００１５】 耕耘軸Ａにおいて、動力伝動ケース３の片側から突出する多角軸部４と挿入部 ５とは、その長さにおいて、図１，図１３，図１４に示す実施形態では多角軸部 ４を短くし、挿入部５を長くしたものである。具体的には挿入部５は多角軸部４ の２倍程度の長さとしたもので、挿入部５を４０mmから５０mmとし、多角軸部４ を２０mmから２５mmとしたものである。さらに、上記とは反対に多角軸部４を挿 入部５よりも長くする実施形態が存在する。これは、図１５に示すように、挿入 部５の長さを多角軸部４の長さよりも極めて短く形成したものである。In the cultivating shaft A, the polygonal shaft portion 4 and the insertion portion 5 projecting from one side of the power transmission case 3 are different in length in the embodiments shown in FIGS. 1, 13, and 14. Is shorter and the insertion part 5 is longer. Specifically, the insertion portion 5 has a length about twice that of the polygonal shaft portion 4, the insertion portion 5 has a length of 40 mm to 50 mm, and the polygonal shaft portion 4 has a length of 20 mm to 25 mm. Further, contrary to the above, there is an embodiment in which the polygonal shaft portion 4 is longer than the insertion portion 5. In this, as shown in FIG. 15, the length of the insertion portion 5 is formed to be extremely shorter than the length of the polygonal shaft portion 4.
【００１６】 次に、アタッチメントＢは車輪Ｂ1 ，耕耘作業体Ｂ2 である。その車輪Ｂ1 及 び耕耘作業体Ｂ2 には、耕耘軸Ａの多角軸部４，挿入部５を軸方向に挿入する回 転軸１０が備わっている。該回転軸１０は、中空状であり、その中空部分の内周 側断面形状は前記耕耘軸Ａの多角軸部４と同等形状である。即ち、多角軸部４を 六角形状とした実施形態の場合には、その回転軸１０の中空部の内周形状も六角 形状となり、且つその多角軸部４との間にほとんどガタが生ずることなく、挿入 しうる程度の精度を有している。そして、車輪Ｂ1 においては、回転軸１０の周 囲にタイヤホィールが設けられ、該タイヤホィールにタイヤが装着される。Next, the attachment B is a wheel B 1 and a cultivating work body B 2 . The wheel B 1 and the cultivating work body B 2 are provided with a rotating shaft 10 for axially inserting the polygonal shaft portion 4 and the inserting portion 5 of the cultivating shaft A. The rotating shaft 10 is hollow, and the hollow portion has an inner peripheral side cross-sectional shape that is the same as the polygonal shaft portion 4 of the cultivating shaft A. That is, in the case of the embodiment in which the polygonal shaft portion 4 has a hexagonal shape, the inner peripheral shape of the hollow portion of the rotary shaft 10 also has a hexagonal shape, and there is almost no rattling with the polygonal shaft portion 4. , It has enough accuracy to be inserted. In the wheel B 1 , a tire wheel is provided around the rotary shaft 10, and the tire is mounted on the tire wheel.
【００１７】 また、耕耘作業体Ｂ2 においては、図１６（Ａ）に示すように、回転軸１０の 周囲に耕耘筒１１が設けられている。そして、耕耘筒１１は軸方向に直交する断 面が多角形状をなしており、具体的には多角軸部４と同様に六角形状，正方形状 等が存在し、さらは三角形状，五角形状或いは八角形状等が存在する。該耕耘筒 １１には連結用孔部１１ａが設けられ、該連結用孔部１１ａが前記回転軸１０の 貫通孔１０ａの位置に対応しているものである。その耕耘筒１１の各外周側面に はホルダー１１ｂ，１１ｂ，…が設けられており、該ホルダー１１ｂ，１１ｂ， …には耕耘刃１２，１２，…が装着されている。耕耘作業体Ｂ2 の別のタイプと しては、図１６（Ｂ）に示すように、略正方形状の耕耘板１３の各隅部箇所に４ つの耕耘刃１２，１２，…が固着されたものである。その耕耘板１３の中心部分 に前記回転軸１０が貫通している。Further, in the cultivating work body B 2 , as shown in FIG. 16 (A), a cultivating cylinder 11 is provided around the rotary shaft 10. The cultivating cylinder 11 has a polygonal cross section orthogonal to the axial direction. Specifically, the cultivating cylinder 11 has a hexagonal shape, a square shape, or the like like the polygonal shaft portion 4, and further has a triangular shape, a pentagonal shape, or the like. There are octagonal shapes. The tiller 11 is provided with a connecting hole 11a, and the connecting hole 11a corresponds to the position of the through hole 10a of the rotary shaft 10. Holders 11b, 11b, ... Are provided on the outer peripheral side surfaces of the cultivating cylinder 11, and cultivating blades 12, 12, ... Are attached to the holders 11b, 11b ,. As another type of the tilling work body B 2 , as shown in FIG. 16 (B), four tilling blades 12, 12, ... Are fixed to each corner portion of the substantially square-shaped tilling plate 13. It is a thing. The rotating shaft 10 penetrates through the central portion of the cultivating plate 13.
【００１８】 また、前述した挿入部５の帯状支持面５ａ，５ａ，…は、アタッチメントＢの 回転軸１０の内周側面に略当接状態となるものである。即ち、回転軸１０の内周 側面と多角軸部４との接触状態を挿入部５においても、略同様に維持することが できるものであり、回転軸１０が多角軸部４及び挿入部５にわたって、ガタを極 めて生じにくい構造としたものである。Further, the belt-shaped support surfaces 5a, 5a, ... Of the insertion portion 5 described above are substantially in contact with the inner peripheral side surface of the rotary shaft 10 of the attachment B. That is, the contact state between the inner peripheral side surface of the rotary shaft 10 and the polygonal shaft portion 4 can be maintained in the insertion portion 5 in substantially the same manner, and the rotation shaft 10 extends over the polygonal shaft portion 4 and the insertion portion 5. The structure is such that there is very little backlash.
【００１９】[0019]
まず、耕耘軸ＡのアタッチメントＢの交換作業は、概ね図１９乃至図２２に示 す通りの手順で行う。まず、作業員は、図１８に示すように、片手で耕耘機の側 面を支えて、耕耘機の片方の車輪を支点にしてもう一つの車輪を地面より浮かせ ながら、車輪Ｂ1 を外す。次に、耕耘作業体Ｂ2 の回転軸１０に耕耘軸Ａの挿入 部５から挿入してゆく〔図３，図５（Ａ）参照〕。このとき、耕耘軸Ａの多角軸 部４との各角部と回転軸１０の内周側面の各角部とは位置的に互いに対応してい なくともかまわない。これを耕耘軸Ａと回転軸１０の軸方向直交断面として示し たのものが図５（Ｂ）及び図５（Ｃ）である。図６及び図９は、回転軸１０に耕 耘軸Ａの挿入部５の挿入を行った状態を示している。この段階では、回転軸１０ の内周側面の各角部と多角軸部４の各角部との位置は一致していない〔図６（Ｂ ）参照〕。First, the work of exchanging the attachment B of the cultivating shaft A is generally performed in the procedure shown in FIGS. 19 to 22. First, as shown in FIG. 18, the worker removes the wheel B 1 while supporting the side surface of the cultivator with one hand and lifting the other wheel from the ground with one wheel of the cultivator as a fulcrum. Next, the plowing work body B 2 is inserted into the rotary shaft 10 from the inserting portion 5 of the plowing shaft A [see FIGS. 3 and 5 (A)]. At this time, the respective corners of the cultivating shaft A with the polygonal shaft portion 4 and the respective corners of the inner peripheral side surface of the rotary shaft 10 do not have to correspond to each other in position. This is shown as a cross section perpendicular to the axial direction of the cultivating shaft A and the rotating shaft 10 in FIGS. 5 (B) and 5 (C). 6 and 9 show a state in which the insertion portion 5 of the tiller shaft A is inserted into the rotary shaft 10. At this stage, the positions of the corners of the inner peripheral side surface of the rotating shaft 10 and the corners of the polygonal shaft 4 do not coincide (see FIG. 6 (B)).
【００２０】 次に、アタッチメントＢを適当に軸周方向に回転させながら回転軸１０の貫通 孔１０ａが形成されている側面と耕耘軸Ａの固定用貫通孔４ａ，５ｂが形成され ている側面とを一致させ、回転軸１０の内周側面の各角部を多角軸部４の各角部 に対応する位置に合わせる〔図７（Ａ），（Ｂ）及び図１０参照〕。次に、耕耘 軸Ａの多角軸部４部分を回転軸１０に挿入し貫通孔１０ａと耕耘軸Ａの固定用貫 通孔４ａ，５ｂとの位置を一致させる〔図８（Ａ），（Ｂ）及び図１１参照〕。Next, while appropriately rotating the attachment B in the axial direction, a side surface of the rotary shaft 10 in which the through hole 10a is formed and a side surface of the tiller shaft A in which the fixing through holes 4a and 5b are formed. Are aligned with each other, and the corners of the inner peripheral side surface of the rotary shaft 10 are aligned with the positions corresponding to the corners of the polygonal shaft 4 (see FIGS. 7A, 7B and 10). Next, the polygonal shaft portion 4 portion of the tilling shaft A is inserted into the rotating shaft 10 so that the through holes 10a and the fixing through holes 4a and 5b of the tilling shaft A are aligned with each other [Fig. 8 (A), (B ) And FIG. 11].
【００２１】 次に、アタッチメントＢの外部より固定ピン１４を差し込み、回転軸１０の貫 通孔１０ａと耕耘軸Ａの固定用貫通孔４ａ，５ｂに該固定ピン１４を貫通させア タッチメントＢを耕耘軸Ａに固定する（図１２参照）。このとき、回転軸１０の 開口部分を耕耘軸Ａのテーパー部６箇所に合わせることで、回転軸１０の軸周方 向の回転が容易になり、さらに、回転軸１０を挿入部５から多角軸部４側に押し 込む作業が容易になる。Next, the fixing pin 14 is inserted from the outside of the attachment B, and the fixing pin 14 is passed through the through hole 10a of the rotary shaft 10 and the fixing through holes 4a and 5b of the tiller shaft A to attach the attachment B. It is fixed to the tillage axis A (see Fig. 12). At this time, by aligning the opening portion of the rotary shaft 10 with the six taper portions of the cultivating shaft A, rotation of the rotary shaft 10 in the circumferential direction of the rotary shaft 10 is facilitated. The work of pushing it into the part 4 side becomes easy.
【００２２】 また、一輪管理機においては、その耕耘軸Ａは一方であるが、この場合は、当 該一輪管理機を前側に傾けて、該耕耘軸Ａに対してアタッチメントＢを、前述し た耕耘機と同様に装着する。Further, in the one-wheel management machine, the cultivating shaft A is one, but in this case, the attachment B is attached to the cultivating shaft A by tilting the one-wheel management machine to the front side. Wear the same as on a tiller.
【００２３】[0023]
請求項１の考案においては、耕耘機における動力伝動ケース３より突出し、そ の先端側を断面略円形の挿入部５とし、該挿入部５に連続した基部側を多角軸部 ４として形成してなる耕耘機における耕耘軸としたことにより、先ず第１に耕耘 軸ＡにおけるアタッチメントＢの交換を極めて効率的に行うことができるし、第 ２に上記作業を効率的に行うことができるにもかかわらず耕耘軸Ａの構造を複雑 にすることなく、簡単なものとすることができる等の種々の効果を奏する。 In the invention of claim 1, the power transmission case 3 of the cultivator is formed so as to project from the power transmission case 3, the distal end side of which is an insertion portion 5 having a substantially circular cross section, and the base portion side continuous with the insertion portion 5 is formed as a polygonal shaft portion 4. By using the tiller shaft in the cultivator, the first thing is that the attachment B on the tiller shaft A can be exchanged extremely efficiently, and secondly, the above work can be performed efficiently. Moreover, various effects such as a simple structure can be achieved without complicating the structure of the tilling shaft A.
【００２４】 上記効果を詳述すると、耕耘軸Ａの先端側を断面略円形の挿入部５とし、該挿 入部５に連続して前記耕耘軸Ａの基部側を多角軸部４として形成しているので、 内周側面が多角軸部４と同様の回転軸１０を有するアタッチメントＢを耕耘軸Ａ に装着する際に、耕耘軸Ａの先端部の挿入部５からアタッチメントＢの回転軸１ ０に挿入してゆくこととなる。それゆえに、挿入部５が円形状断面であるために 回転軸１０に挿入しやすく、その挿入部５に一旦、装着した状態でアタッチメン トＢを軸周方向に僅かに回転させるのみで、多角軸部４の各角部とアタッチメン トＢの回転軸１０の内周側面の各角部との位置が一致するので、あとは、固定用 の孔同士を合わせるようにしてアタッチメントＢを押すのみで多角軸部４に回転 軸１０を挿入させることができる。To explain the above effect in detail, the tip end side of the tilling shaft A is formed as an insertion portion 5 having a substantially circular cross section, and the base portion side of the tilling shaft A is formed as a polygonal shaft portion 4 continuously from the insertion portion 5. Therefore, when the attachment B having the rotary shaft 10 whose inner peripheral side surface is similar to the polygonal shaft portion 4 is mounted on the cultivating shaft A, the rotary shaft 10 of the attachment B is moved from the inserting portion 5 at the tip end of the cultivating shaft A. It will be inserted. Therefore, since the insertion portion 5 has a circular cross section, it can be easily inserted into the rotary shaft 10, and once attached to the insertion portion 5, the attachment B can be rotated slightly in the circumferential direction of the rotary shaft 10. Since the positions of the corners of the portion 4 and the corners of the inner peripheral side surface of the rotary shaft 10 of the attachment B are the same, all that is left is to attach the fixing holes to each other and push the attachment B. The rotary shaft 10 can be inserted into the shaft portion 4.
【００２５】 この作業は極めて簡単且つ迅速にできるものである。即ち、従来タイプでは、 軸方向に亘って、全体が断面多角形状であったために、アタッチメントＢの回転 軸１０を装着作業の最初から多角軸に合わせて行わなければならない。その角同 士が一致する箇所を探し求める間に、作業員のアタッチメントＢを持つ手は、ア タッチメントＢの重さに疲労し、作業員に与える肉体的，精神的疲労は大きくな る。これに対して、本考案では、まず最初にアタッチメントＢの回転軸１０に耕 耘軸Ａの挿入部５を挿入することで、アタッチメントＢを耕耘軸Ａに対して略仮 止め状態とすることができ、したがってアタッチメントＢを手に持たなくともよ く、そのアタッチメントＢを交換作業する手は、従来タイプに比べるとはるかに 自由度が高く、且つ作業員に肉体的疲労や負担を与えることなく良好な作業を行 うことができるものである。This work is extremely simple and quick. That is, in the conventional type, since the entire cross section has a polygonal shape in the axial direction, the rotary shaft 10 of the attachment B must be aligned with the polygonal axis from the beginning of the mounting operation. While the horns are searching for the matching part, the worker's hand holding the attachment B becomes tired by the weight of the attachment B, and the physical and mental fatigue given to the worker increases. On the other hand, in the present invention, first, by inserting the insertion portion 5 of the tilling shaft A into the rotary shaft 10 of the attachment B, the attachment B can be brought into a substantially temporarily fixed state with respect to the tilling shaft A. Therefore, the attachment B does not need to be held in the hand, and the hand for exchanging the attachment B has a much higher degree of freedom than the conventional type, and is good without physical fatigue or burden on the worker. It is something that can be done.
【００２６】 さらに、本考案においては、耕耘軸Ａが多角軸部４及び挿入部５とから構成さ れており、単に多角軸部４の先端に断面円形状の挿入部５を設けたのみの構造で ある。従って、形状、構造を簡単なものとすることができ、ひいては低価格にて 提供することができる利点もある。Further, in the present invention, the tilling shaft A is composed of the polygonal shaft portion 4 and the insertion portion 5, and the insertion portion 5 having a circular cross section is simply provided at the tip of the polygonal shaft portion 4. It is a structure. Therefore, there is also an advantage that the shape and structure can be simplified, and the price can be reduced.
【００２７】 次に、請求項２の考案は、請求項１において、挿入部５と多角軸部４とに、先 端側から基部側に向かって次第に軸径が拡大するテーパー部６を形成してなる耕 耘機における耕耘軸としたことにより、挿入部５を介して多角軸部４に回転軸１ ０を挿入する際に、テーパー部６が挿入部５と多角軸部４との間の変形状態が滑 らかなものとなり、アタッチメントＢの回転軸１０を挿入部５から多角軸部４に 押し込む際には抵抗感や衝撃感がなく、一層簡単且つ滑らか装着することができ る。Next, the invention of claim 2 is such that, in claim 1, in the insertion part 5 and the polygonal shaft part 4, a taper part 6 whose shaft diameter gradually increases from the front end side toward the base part side is formed. When the rotary shaft 10 is inserted into the polygonal shaft portion 4 through the insertion portion 5, the taper portion 6 is provided between the insertion portion 5 and the polygonal shaft portion 4 by using the tiller shaft in the tiller. The deformed state becomes smooth, and when the rotary shaft 10 of the attachment B is pushed into the polygonal shaft portion 4 from the insertion portion 5, there is no resistance or shock, and the mounting can be performed more easily and smoothly.
【００２８】 次に、請求項３の考案は、請求項１において、前記挿入部５の直径を、前記多 角軸部４の仮想内接円４ｄの直径と同等としてなる耕耘機における耕耘軸とした ことにより、耕耘軸Ａの挿入部５にアタッチメントＢの回転軸１０を挿入する作 業がより一層良好にできる。即ち、挿入部５は多角軸部４の仮想の内接円に等し いものであり、回転軸１０の内周部内にも比較的容易に収容しやすくなり、それ ゆえにアタッチメントＢの回転軸１０に挿入部５を簡単に挿入させることができ 、ひいては作業をより一層効率的にすることができる。Next, the invention of claim 3 is the cultivating shaft in a cultivator according to claim 1, wherein the diameter of the insertion portion 5 is equal to the diameter of the virtual inscribed circle 4d of the polygonal shaft portion 4. As a result, the work of inserting the rotary shaft 10 of the attachment B into the insertion portion 5 of the cultivating shaft A can be further improved. That is, the insertion portion 5 is not equal to the imaginary inscribed circle of the polygonal shaft portion 4 and can be accommodated in the inner peripheral portion of the rotation shaft 10 relatively easily. Therefore, the insertion portion 5 can be attached to the rotation shaft 10 of the attachment B. The insertion portion 5 can be easily inserted, and the work can be made more efficient.
【００２９】 次に、請求項４の考案は、請求項１において、前記挿入部５の直径を、前記多 角軸部４の仮想内接円４ｄより僅かに大きくし、その挿入部５には前記多角軸部 ４の各側面と同一平面となる複数の帯状支持面５ａ，５ａ，…を形成してなる耕 耘機における耕耘軸としたことにより、アタッチメントＢの支持をより一層安定 させることができる。Next, in the invention of claim 4, in claim 1, the diameter of the insertion portion 5 is slightly larger than the virtual inscribed circle 4d of the polygonal shaft portion 4, and the insertion portion 5 has The support of the attachment B can be further stabilized by using the cultivating shaft of the cultivator having a plurality of strip-shaped supporting surfaces 5a, 5a, ... Which are flush with the respective side surfaces of the polygonal shaft portion 4. it can.
【００３０】 即ち、挿入部５の周囲に形成する帯状支持面５ａ，５ａ，…は、挿入部５の直 径Ｄ1 を仮想内接円４ｄの直径Ｄ2 よりも僅かに大きくし、多角軸部４の各側面 と同一面となるように形成しているものであるため、回転軸１０の内周側面と多 角軸部４との当接状態と同様の当接状態を帯状支持面５ａ，５ａ，…を介して挿 入部５でも維持することができる。そのために耕耘軸Ａの多角軸部４のみならず 挿入部５においても回転軸１０の内周側面との間にガタを生じにくいものとする ことができる。That is, the strip-shaped supporting surfaces 5a, 5a, ... Formed around the insertion portion 5 have the straight diameter D 1 of the insertion portion 5 slightly larger than the diameter D 2 of the virtual inscribed circle 4d, and the polygonal axis Since it is formed so as to be flush with each side surface of the portion 4, the same contact state as that between the inner peripheral side surface of the rotary shaft 10 and the polygonal shaft portion 4 is applied to the belt-shaped support surface 5a. , 5a, ... Can also be maintained in the insertion part 5. Therefore, not only the polygonal shaft portion 4 of the cultivating shaft A but also the inserting portion 5 can be prevented from being loosened with the inner peripheral side surface of the rotating shaft 10.
【図１】（Ａ）は多角軸部を断面六角形状とし、且つ挿
入部に帯状支持面を形成したタイプの耕耘軸の斜視図 （Ｂ）は多角軸部を断面六角形状とし、且つ挿入部に帯
状支持面を形成しないタイプの耕耘軸の斜視図FIG. 1A is a perspective view of a cultivating shaft of a type in which a polygonal shaft portion has a hexagonal cross-section and a band-shaped support surface is formed in an insertion portion. FIG. 1B shows a polygonal shaft portion having a hexagonal cross-section and an insertion portion. Perspective view of a cultivating shaft of the type that does not have a belt-like support surface
【図２】耕耘機の側面図[Figure 2] Side view of the tiller
【図３】耕耘軸と回転軸の要部を示す斜視図FIG. 3 is a perspective view showing a main part of a cultivating shaft and a rotating shaft.
【図４】（Ａ）は耕耘軸の要部平面図 （Ｂ）は（Ａ）のＰ１−Ｐ１矢視断面図 （Ｃ）は（Ｂ）の要部拡大図FIG. 4A is a plan view of a main part of a tilling shaft, FIG. 4B is a cross-sectional view taken along the line P1-P1 of FIG.
【図５】（Ａ）は耕耘軸に回転軸を挿入しようとする状
態を示す平面図 （Ｂ）は（Ａ）のＰ２−Ｐ２矢視断面図 （Ｃ）は（Ａ）のＰ３−Ｐ３矢視端面図FIG. 5 (A) is a plan view showing a state in which a rotary shaft is about to be inserted into a cultivating shaft. (B) is a sectional view taken along the line P2-P2 of (A), and (C) is a line P3-P3 of (A). End view
【図６】（Ａ）は耕耘軸の挿入部に回転軸を挿入した状
態を示す平面図 （Ｂ）は（Ａ）のＰ４−Ｐ４矢視断面図FIG. 6 (A) is a plan view showing a state in which a rotary shaft is inserted into an insertion portion of a tillage shaft. (B) is a cross-sectional view taken along arrow P4-P4 of (A).
【図７】（Ａ）は耕耘軸の挿入部に回転軸を挿入し、各
角部を一致させた状態の平面図 （Ｂ）は（Ａ）のＰ５−Ｐ５矢視断面図FIG. 7 (A) is a plan view showing a state in which a rotary shaft is inserted into an inserting portion of a tilling shaft and the corners are aligned with each other. (B) is a cross-sectional view taken along the line P5-P5 of (A).
【図８】（Ａ）は耕耘軸の多角軸部に回転軸を挿入した
状態の平面図 （Ｂ）は（Ａ）のＰ６−Ｐ６矢視断面図 （Ｃ）は（Ａ）のＰ７−Ｐ７矢視拡大断面図 （Ｄ）は（Ｃ）のイ囲み部の拡大図[FIG. 8] (A) is a plan view of a state in which a rotary shaft is inserted in the polygonal shaft portion of the tillage shaft (B) is a cross-sectional view taken along the arrow P6-P6 of (A), and (C) is P7-P7 of (A). Enlarged sectional view taken in the direction of the arrow (D) is an enlarged view of the area encircled in (C).
【図９】耕耘軸の挿入部を回転軸に挿入した状態を示す
斜視図FIG. 9 is a perspective view showing a state in which the inserting portion of the cultivating shaft is inserted into the rotating shaft.
【図１０】耕耘軸の挿入部を回転軸に挿入し、回転軸を
軸周方向に回転させて各角部を一致させた状態の斜視図FIG. 10 is a perspective view showing a state in which the inserting portion of the cultivating shaft is inserted into the rotating shaft and the rotating shaft is rotated in the circumferential direction of the shaft so that the corners are aligned with each other.
【図１１】耕耘軸の多角軸部を回転軸に挿入した状態の
斜視図FIG. 11 is a perspective view showing a state in which the polygonal shaft portion of the cultivating shaft is inserted into the rotary shaft.
【図１２】耕耘軸の貫通孔と回転軸の貫通孔に固定ピン
を貫通しようとする状態を示す斜視図FIG. 12 is a perspective view showing a state in which the fixing pin is going to penetrate through the through hole of the tillage shaft and the through hole of the rotary shaft.
【図１３】（Ａ）は多角軸部を断面正方形状とし、且つ
挿入部に帯状支持面を形成したタイプの耕耘軸の斜視図 （Ｂ）は多角軸部を断面正方形状とし、且つ挿入部に帯
状支持面を形成しないタイプの耕耘軸の斜視図FIG. 13 (A) is a perspective view of a cultivating shaft of a type in which the polygonal shaft portion has a square cross section and a band-shaped support surface is formed in the insertion portion. FIG. 13 (B) shows the polygonal shaft portion having a square cross section and the insertion portion. Perspective view of a cultivating shaft of the type that does not have a belt-like support surface
【図１４】（Ａ）は多角軸部を断面三角形状としたタイ
プの耕耘軸の斜視図 （Ｂ）は多角軸部を断面五角形状としたタイプの耕耘軸
の斜視図 （Ｃ）は多角軸部を断面八角形状としたタイプの耕耘軸
の斜視図FIG. 14 (A) is a perspective view of a cultivating shaft of a type in which a polygonal shaft portion has a triangular cross-section (B) is a perspective view of a cultivating shaft of a type in which a polygonal shaft portion has a pentagonal cross-section (C) is a polygonal shaft Perspective view of a cultivating shaft of the type with a octagonal cross section
【図１５】本考案の第２実施形態の斜視図FIG. 15 is a perspective view of a second embodiment of the present invention.
【図１６】（Ａ）はアタッチメントの耕耘作業体を示す
斜視図 （Ｂ）はアタッチメントの別のタイプの耕耘作業体を示
す斜視図FIG. 16 (A) is a perspective view showing a tilling work body of an attachment. FIG. 16 (B) is a perspective view showing a tilling work body of another type of attachment.
【図１７】シャフトドライブタイプの機構を備えた耕耘
機の側面図FIG. 17 is a side view of a tiller equipped with a shaft drive type mechanism.
【図１８】耕耘機のアタッチメントを交換しようとする
作業状態を示す略示図FIG. 18 is a schematic view showing a working state in which the attachment of the cultivator is being replaced.
【図１９】耕耘機の片方の車輪を支点にして耕耘機を傾
け、もう一方の車輪を地面から浮かせて耕耘軸から外し
た状態を示す略示正面図FIG. 19 is a schematic front view showing a state in which one wheel of the cultivator is used as a fulcrum to tilt the cultivator, and the other wheel is floated from the ground to be removed from the cultivating shaft.
【図２０】耕耘軸に耕耘作業体からなるアタッチメント
を装着しようとする状態の略示正面図FIG. 20 is a schematic front view of a state in which an attachment made of a cultivating work body is about to be attached to the cultivating shaft.
【図２１】耕耘軸に耕耘作業体からなるアタッチメント
を装着した状態の略示正面図FIG. 21 is a schematic front view showing a state in which an attachment made of a tilling work body is attached to the tilling shaft.
【図２２】両側の耕耘軸に耕耘作業体からなるアタッチ
メントを装着した状態の略示正面図FIG. 22 is a schematic front view of a state in which an attachment made of a tilling work body is attached to the tilling shafts on both sides.
Ａ…耕耘軸 ３…動力伝動ケース ４…多角軸部 ４ｄ…仮想内接円 ５…挿入部 A ... Tillage shaft 3 ... Power transmission case 4 ... Polygonal shaft part 4d ... Virtual inscribed circle 5 ... Insertion part
Claims (4)
し、その先端側を断面略円形の挿入部とし、該挿入部に
連続した基部側を多角軸部として形成してなることを特
徴とする耕耘機における耕耘軸。1. A cultivator which is formed so as to project from a power transmission case of a cultivator, a distal end side of which is an insertion portion having a substantially circular cross section, and a base side which is continuous with the insertion portion is a polygonal shaft portion. Tillage axis.
し、その先端側を断面略円形の挿入部とし、該挿入部に
連続した基部側を多角軸部とし、前記挿入部と多角軸部
とに、先端側から基部側に向かって次第に軸径が拡大す
るテーパー部を形成してなることを特徴とする耕耘機に
おける耕耘軸。2. A power transmission case in a cultivator, the tip side of which is an insertion portion having a substantially circular cross section, and the base side which is continuous with the insertion portion is a polygonal shaft portion, and the insertion portion and the polygonal shaft portion are A cultivating shaft for a cultivator, comprising a taper portion whose shaft diameter gradually increases from the tip side toward the base side.
し、その先端側を断面略円形の挿入部とし、該挿入部に
連続した基部側を多角軸部とし、前記挿入部の直径を、
前記多角軸部の仮想内接円の直径と同等としてなること
を特徴とする耕耘機における耕耘軸。3. A power transmission case in a cultivator, the tip side of which is an insertion portion having a substantially circular cross section, the base side which is continuous with the insertion portion is a polygonal shaft portion, and the diameter of the insertion portion is
The diameter of a virtual inscribed circle of the polygonal shaft portion is equivalent to the diameter of a cultivator shaft in a cultivator.
し、その先端側を断面略円形の挿入部とし、該挿入部に
連続した基部側を多角軸部とし、前記挿入部の直径を、
前記多角軸部の仮想内接円より僅かに大きくし、その挿
入部には前記多角軸部の各側面と同一平面となる複数の
帯状支持面を形成してなることを特徴とする耕耘機にお
ける耕耘軸。4. A power transmission case of a cultivator, the tip side of which is an insertion part having a substantially circular cross section, the base side which is continuous with the insertion part is a polygonal shaft part, and the diameter of the insertion part is
In a cultivator, which is slightly larger than a virtual inscribed circle of the polygonal shaft portion, and a plurality of strip-shaped support surfaces which are flush with the respective side surfaces of the polygonal shaft portion are formed in the insertion portion. Tillage axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995009142U JP3022889U (en) | 1995-08-30 | 1995-08-30 | Tillage axis in a tiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995009142U JP3022889U (en) | 1995-08-30 | 1995-08-30 | Tillage axis in a tiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3022889U true JP3022889U (en) | 1996-04-02 |
Family
ID=43158179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1995009142U Expired - Lifetime JP3022889U (en) | 1995-08-30 | 1995-08-30 | Tillage axis in a tiller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3022889U (en) |
-
1995
- 1995-08-30 JP JP1995009142U patent/JP3022889U/en not_active Expired - Lifetime
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