JP3510233B2 - Connecting shaft for agricultural work machine and agricultural work machine - Google Patents
Connecting shaft for agricultural work machine and agricultural work machineInfo
- Publication number
- JP3510233B2 JP3510233B2 JP2002028105A JP2002028105A JP3510233B2 JP 3510233 B2 JP3510233 B2 JP 3510233B2 JP 2002028105 A JP2002028105 A JP 2002028105A JP 2002028105 A JP2002028105 A JP 2002028105A JP 3510233 B2 JP3510233 B2 JP 3510233B2
- Authority
- JP
- Japan
- Prior art keywords
- connecting shaft
- opening
- shaft
- deformable
- agricultural work
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Soil Working Implements (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、静音化を図ること
ができる農作業機用の連結軸および農作業機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting shaft for agricultural work machines and an agricultural work machine capable of reducing noise.
【０００２】[0002]
【従来の技術】従来、例えば所定方向に回転しながら耕
耘作業をするロータリー等の耕耘体と、この耕耘体の後
方位置に上下方向に回動可能に配置された均平板等の第
１の整地体と、この第１の整地体に左右方向の連結ピン
を介して上下方向に回動可能に連結されたレーキ板等の
第２の整地体とを具備する代掻きハロー等の農作業機が
知られている。2. Description of the Related Art Conventionally, for example, a cultivating body such as a rotary for cultivating work while rotating in a predetermined direction, and a first leveling ground such as a flat plate rotatably arranged in a vertical direction at a rear position of the cultivating body. There is known an agricultural working machine such as a scraping halo having a body and a second grounding body such as a rake plate that is rotatably connected to the first grounding body through a connecting pin in the left-right direction in the vertical direction. ing.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の農作業機では、連結ピンを容易に通せるようにこの
連結ピンより一回り大きいピン通し孔が、第１の整地体
および第２の整地体に開口形成されているため、がたつ
きが生じ、騒音が発生しがちである。特に、最近では、
農作業機の分野においても、静音化の要望が強くなって
きている。However, in the above-mentioned conventional agricultural working machine, a pin through hole which is slightly larger than the connecting pin so that the connecting pin can be easily passed through is provided in the first leveling body and the second leveling body. Since the opening is formed in the back wall, rattling occurs and noise tends to occur. Especially recently
In the field of agricultural work machines as well, there is a strong demand for noise reduction.
【０００４】本発明は、このような点に鑑みなされたも
ので、静音化を図ることができる農作業機用の連結軸お
よび農作業機を提供することを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connecting shaft for an agricultural work machine and an agricultural work machine capable of reducing noise.
【０００５】[0005]
【課題を解決するための手段】請求項１記載の農作業機
用の連結軸は、被連結体に連結体を回動可能に連結する
ための農作業機用の連結軸であって、前記被連結体の開
口部および前記連結体の開口部に遊挿され、外周側に変
形部を有する連結軸本体と、この連結軸本体および前記
被連結体の前記開口部の周縁部分間の間隙と前記連結軸
本体および前記連結体の前記開口部の周縁部分間の間隙
とが埋められるように、前記連結軸本体の前記変形部を
変形させる間隙埋め手段とを備えるものである。A connecting shaft for an agricultural working machine according to claim 1 is a connecting shaft for an agricultural working machine for rotatably connecting the connecting body to the connected body, the connecting shaft being connected. A connecting shaft body that is loosely inserted in the opening of the body and the opening of the connecting body and has a deformed portion on the outer peripheral side, and the gap between the connecting shaft body and the peripheral edge portion of the opening of the connected body and the connection. A gap filling means for deforming the deformed portion of the connecting shaft body is provided so that a gap between the shaft body and the peripheral portion of the opening of the connecting body is filled.
【０００６】そして、間隙埋め手段にて連結軸本体の変
形部を変形させることで、連結軸本体および被連結体の
開口部の周縁部分間の間隙と連結軸本体および連結体の
開口部の周縁部分間の間隙とを埋めることができるの
で、がたつきの発生が抑制され、静音化が図られる。By deforming the deformed portion of the connecting shaft body by the gap filling means, the gap between the peripheral portion of the opening of the connecting shaft body and the connected body and the peripheral edge of the opening of the connecting shaft body and the connecting body. Since the gap between the parts can be filled, rattling can be suppressed and noise can be reduced.
【０００７】請求項２記載の農作業機用の連結軸は、被
連結体に連結体を回動可能に連結するための農作業機用
の連結軸であって、前記被連結体の開口部および前記連
結体の開口部に遊挿される略円柱形状の軸体と、この軸
体の外周側に嵌着され、変形前の状態では外径が前記各
開口部の周縁部分の内径より小さい状態になっている略
円筒形状の変形体と、前記軸体の外周側に前記変形体の
端面に押し付けられるように取着され、前記変形体を変
形させてこの変形体の外周側を前記各開口部の周縁部分
に密着させる取着体とを備えるものである。A connecting shaft for an agricultural work machine according to a second aspect of the present invention is a connecting shaft for an agricultural work machine for rotatably connecting the connected body to the connected body, the opening of the connected body and the connecting shaft. A substantially columnar shaft body loosely inserted into the opening of the connecting body, and fitted on the outer peripheral side of this shaft body, and in a state before deformation, the outer diameter is smaller than the inner diameter of the peripheral portion of each opening. Is attached to the outer peripheral side of the shaft body so as to be pressed against the end face of the deformable body, the deformable body is deformed, and the outer peripheral side of the deformable body is attached to each of the openings. And an attachment body that is brought into close contact with the peripheral portion.
【０００８】そして、取着体にて変形体を変形させてこ
の変形体の外周側を被連結体および連結体の各開口部の
周縁部分に密着させることができるので、がたつきの発
生が抑制され、静音化が図られる。Since the deformable body can be deformed by the attaching body and the outer peripheral side of the deformable body can be brought into close contact with the peripheral portions of the respective openings of the connected body and the connected body, the occurrence of rattling is suppressed. The noise is reduced.
【０００９】請求項３記載の農作業機用の連結軸は、請
求項２記載の農作業機用の連結軸において、変形体は、
弾性変形可能な弾性部材にて構成されているものであ
る。According to a third aspect of the present invention, there is provided a connecting shaft for an agricultural work machine according to the second aspect, wherein the deformable body is
The elastic member is elastically deformable.
【００１０】そして、変形体が弾性変形可能な弾性部材
にて構成されているので、がたつきの発生が適切に抑制
され、より一層の静音化が図られる。Further, since the deformable body is composed of an elastic member which can be elastically deformed, the occurrence of rattling is appropriately suppressed, and further noise reduction is achieved.
【００１１】請求項４記載の農作業機用の連結軸は、請
求項２または３記載の農作業機用の連結軸において、取
着体は、軸体の外周側に螺着される螺着具であるもの
で、軸体の外周側に螺着される螺着具にて変形体の変形
状態が適切に維持される。According to a fourth aspect of the present invention, there is provided a connecting shaft for an agricultural work machine according to the second or third aspect, wherein the attachment body is a screw fastener that is screwed to the outer peripheral side of the shaft body. However, the deformed state of the deformable body is appropriately maintained by the screwing tool screwed to the outer peripheral side of the shaft body.
【００１２】請求項５記載の農作業機は、左右方向に軸
方向を有する請求項１ないし４のいずれか一記載の農作
業機用の連結軸と、所定方向に回転しながら耕耘作業を
する耕耘体と、この耕耘体の後方位置に上下方向に回動
可能に配置され、整地作業をする被連結体である第１の
整地体と、この第１の整地体に前記連結軸を介して上下
方向に回動可能に連結され、整地作業をする連結体であ
る第２の整地体とを具備するものである。The agricultural working machine according to claim 5 has a connecting shaft for the agricultural working machine according to any one of claims 1 to 4, which has an axial direction in the left-right direction, and a cultivating body for performing plowing work while rotating in a predetermined direction. And a first ground leveling body that is a body to be grounded, which is rotatably arranged in the vertical direction at a rear position of the cultivated body, and that is connected to the first ground leveling body through the connecting shaft in the vertical direction. And a second ground leveling body that is rotatably connected to the ground leveling body and is a connection body for ground leveling work.
【００１３】そして、耕耘体で耕耘作業をしかつ第１の
整地体および第２の整地体で整地作業をする場合におけ
るがたつきの発生が抑制され、静音化が図られる。Further, rattling is suppressed when the plowing work is carried out with the tilled body and the grounding work is carried out with the first ground leveling body and the second ground leveling body, and the noise is reduced.
【００１４】[0014]
【発明の実施の形態】以下、本発明の農作業機の一実施
の形態の構成を図面を参照して説明する。BEST MODE FOR CARRYING OUT THE INVENTION A configuration of an embodiment of an agricultural working machine of the present invention will be described below with reference to the drawings.
【００１５】図３および図４において、１は農作業機
で、この農作業機１は、走行車としての牽引車であるト
ラクタ（図示せず）の後部に装着される牽引式の代掻き
ハロー等で、トラクタの牽引により圃場を進行方向前方
（図示Ｘ方向）に移動しながら、耕耘作業、整地作業、
土寄せ作業等の対土作業を行うものである。In FIGS. 3 and 4, reference numeral 1 is an agricultural work machine, and the agricultural work machine 1 is a towing type scraping harrow or the like mounted on a rear portion of a tractor (not shown) which is a towing vehicle as a traveling vehicle. While moving the field forward (X direction in the figure) by pulling the tractor, cultivating work, leveling work,
It is for carrying out soil work such as soil gathering work.
【００１６】この農作業機１は、例えば３点連結部であ
るトラクタ連結部２を有する機枠３を備えており、この
機枠３には、トラクタのＰＴＯ軸にユニバーサルジョイ
ントおよび伝動シャフト等からなる連結手段（図示せ
ず）を介して連結される前後方向の入力軸４が回転可能
に設けられている。This agricultural working machine 1 is provided with a machine frame 3 having a tractor connecting portion 2 which is, for example, a three-point connecting portion, and this machine frame 3 comprises a universal joint, a transmission shaft and the like on the PTO shaft of the tractor. An input shaft 4 in the front-rear direction, which is connected via a connecting means (not shown), is rotatably provided.
【００１７】また、機枠３には、入力軸４からの動力で
所定方向に駆動回転しながら耕耘作業をするロータリー
等の耕耘体６が回転可能に設けられている。この耕耘体
６は、左右方向の耕耘軸７を有し、この耕耘軸７には複
数の耕耘爪８が放射状に取り付けられている。Further, the machine frame 3 is rotatably provided with a cultivating body 6 such as a rotary for performing a cultivating work while drivingly rotating the motive power from the input shaft 4 in a predetermined direction. The cultivating body 6 has a left and right cultivating shaft 7, and a plurality of cultivating claws 8 are radially attached to the cultivating shaft 7.
【００１８】さらに、機枠３には、耕耘体６の耕耘爪８
にて跳ね上げられる土の飛散を防止するカバー体９が固
定的に設けられ、このカバー体９は耕耘体６の上方位置
に配置されている。Further, the machine frame 3 has a tilling claw 8 of a tilling body 6.
A cover body 9 is fixedly provided to prevent scattering of the soil that is flipped up by, and the cover body 9 is arranged above the tiller body 6.
【００１９】そして、このカバー体９の後端部には、整
地作業をする略矩形板状の均平板等の被連結体である第
１の整地体11の前端部（上端部）が、ゴム製の弾性板10
を介して連結され、この第１の整地体11は耕耘体６の後
方位置に少なくとも上下方向に回動可能に配置されてい
る。At the rear end portion of the cover body 9, the front end portion (upper end portion) of the first ground leveling body 11, which is a connected body such as a substantially rectangular plate-like flat plate for ground leveling work, is provided with rubber. Made of elastic plate 10
The first leveling body 11 is arranged at a rear position of the tiller 6 so as to be rotatable at least in the vertical direction.
【００２０】また、この第１の整地体11の後端部（下端
部）には、第１の整地体11に続いて整地作業をする略矩
形板状のレーキ板等の連結体である第２の整地体12の前
端部が、左右一対の連結ピン（図示せず）と左右方向中
央の農作業機用の連結軸（以下、連結軸という）14とを
介して回動可能に連結されている。At the rear end portion (lower end portion) of the first leveling body 11, a connecting body such as a rake plate having a substantially rectangular plate shape for performing leveling work subsequent to the first leveling body 11 is provided. The front end portion of the ground leveling body 2 of 2 is rotatably connected via a pair of left and right connecting pins (not shown) and a connecting shaft (hereinafter referred to as a connecting shaft) 14 for the agricultural working machine at the center in the left-right direction. There is.
【００２１】すなわち、図１および図２にも示されるよ
うに、第１の整地体11の後端部には、第２の整地体12が
互いに同軸上に位置する左右方向に軸方向を有する連結
軸14および連結ピンを介して上下方向に回動可能に連結
され、この第２の整地体12は、耕耘体６の後方位置に左
右方向の連結軸14および連結ピンを中心として上下方向
に回動可能に配置されている。That is, as also shown in FIGS. 1 and 2, at the rear end portion of the first ground leveling body 11, the second ground leveling body 12 has an axial direction in the left-right direction coaxial with each other. The second ground leveling body 12 is rotatably connected in a vertical direction via a connecting shaft 14 and a connecting pin, and the second ground leveling body 12 is located at a rear position of the tillage body 6 in a vertical direction about the horizontal connecting shaft 14 and the connecting pin. It is rotatably arranged.
【００２２】なお、第１の整地体11は、左右方向に長手
方向を有する長手状でかつ複数箇所で長手方向に沿って
折り曲げられた屈曲状の本体板部21を有し、この本体板
部21の長手方向中央部からは、連結板部である突出板部
22が上方に向って一体に突出している。この突出板部22
の後端部には、略円形状の開口部23が形成されている。
この開口部23は、空間部である開口部分23aと、この開
口部分23aの外周に沿って位置する略円環状の周縁部分2
3bとにて構成されている。The first leveling body 11 has a main body plate portion 21 having a longitudinal shape having a longitudinal direction in the left-right direction and bent at a plurality of points along the longitudinal direction. A projecting plate part that is a connecting plate part from the central part in the longitudinal direction of 21.
22 is projected integrally upward. This protruding plate part 22
A substantially circular opening 23 is formed at the rear end portion.
The opening 23 includes an opening 23a, which is a space, and a substantially annular peripheral portion 2 located along the outer periphery of the opening 23a.
It is composed of 3b and.
【００２３】また、第２の整地体12は、左右方向に長手
方向を有する長手状でかつ複数箇所で長手方向に沿って
折り曲げられた屈曲状の本体板部26を有している。この
本体板部26の長手方向中央部からは、第１の整地体11の
突出板部22よりやや薄く所定距離を介して互いに離間対
向した左右一対の連結板部である突出板部、すなわち進
行方向左側の第１突出板部27および進行方向右側の第２
突出板部28が、上方に向って一体に突出している。The second ground leveling body 12 has a longitudinal main body portion 26 having a longitudinal direction in the left-right direction and bent at a plurality of locations along the longitudinal direction. From the central portion in the longitudinal direction of the main body plate portion 26, the protruding plate portions, which are a pair of left and right connecting plate portions, which are slightly thinner than the protruding plate portion 22 of the first ground grading body 11 and are spaced apart and opposed to each other by a predetermined distance, that is, The first protruding plate portion 27 on the left side in the direction of travel and the second protruding plate portion 27 on the right side in the travel direction
The protruding plate portion 28 integrally protrudes upward.
【００２４】この第１突出板部27の前端部には、突出板
部22の開口部23と同径の略円形状の開口部31が形成され
ている。この開口部31は、空間部である開口部分31a
と、この開口部分31aの外周に沿って位置する略円環状
の周縁部分31bとにて構成されている。A substantially circular opening 31 having the same diameter as the opening 23 of the projecting plate 22 is formed at the front end of the first projecting plate 27. The opening 31 is an opening 31a that is a space.
And a substantially annular peripheral edge portion 31b located along the outer periphery of the opening portion 31a.
【００２５】一方、第２突出板部28の前端部には、突出
板部22の開口部23より小径の略円形状の固定部である嵌
合用開口部32が形成されている。この嵌合用開口部32
は、空間部である開口部分32aと、この開口部分32aの外
周に沿って位置する略円環状の周縁部分32bとにて構成
されている。On the other hand, at the front end of the second projecting plate portion 28, there is formed a fitting opening 32 which is a substantially circular fixing part having a smaller diameter than the opening 23 of the projecting plate portion 22. This mating opening 32
Is composed of an opening portion 32a which is a space portion and a substantially annular peripheral edge portion 32b which is located along the outer periphery of the opening portion 32a.
【００２６】また、両突出板部27，28の後端部には、操
作レバー33の操作で第２の整地体12を整地作業状態（回
動可能な状態）と土寄せ作業状態（回動不能な状態）と
に切換え可能な操作切換機構34の連結ロッド35の下端部
が連結されている。また、両突出板部27，28の後端部に
は、第２の整地体12を手動回動でメンテナンス状態にす
る際に把持する操作握りである把持体36が取り付けられ
ている。At the rear end portions of both projecting plate portions 27, 28, the second ground leveling body 12 is operated by operating the operation lever 33 to the leveling work state (rotatable state) and the earth gathering work state (unrotatable state). The lower end of the connecting rod 35 of the operation switching mechanism 34 that can be switched to a different state) is connected. A grip 36, which is an operation grip for gripping the second ground leveling body 12 in a maintenance state by manual rotation, is attached to the rear end portions of both projecting plate portions 27 and 28.
【００２７】ここで、第１の整地体11に第２の整地体12
を回動可能に連結するための左右方向の連結軸14は、図
１に示すように、第１の整地体11の突出板部22の開口部
23の開口部分23aおよび第２の整地体12の第１突出板部2
7の開口部31の開口部分31aに遊挿され、かつ、第２突出
板部28の嵌合用開口部32の周縁部分32bに固定された略
円柱形状の軸体41を備えている。Here, the first leveled body 11 and the second leveled body 12 are
As shown in FIG. 1, the left and right connecting shafts 14 for rotatably connecting the two are connected to the openings of the projecting plate portion 22 of the first ground leveling body 11.
The opening portion 23a of 23 and the first protruding plate portion 2 of the second leveling body 12
The shaft body 41 has a substantially columnar shape and is loosely inserted into the opening portion 31a of the opening portion 31 of 7 and fixed to the peripheral edge portion 32b of the fitting opening portion 32 of the second projecting plate portion 28.
【００２８】そして、この軸体41の軸方向中央部の外周
側には、変形前の状態では軸方向全長にわたって等径状
で外径が各開口部23，31の周縁部分23b，31bの内径より
小さい状態になっている略円筒形状をなす変形可能な筒
状体である変形体42が、位置決め部である位置決め径大
軸部44にて位置決めされた状態で嵌着されている。この
変形体42は、例えばゴム或いは合成樹脂で一体に略円筒
形状に形成された弾性変形可能な弾性部材43にて構成さ
れている。On the outer peripheral side of the axial center portion of the shaft body 41, in the state before deformation, the outer diameter is equal throughout the entire axial length, and the outer diameter is the inner diameter of the peripheral edge portions 23b and 31b of the openings 23 and 31, respectively. A deformable body 42, which is a deformable tubular body having a substantially cylindrical shape in a smaller state, is fitted in a state of being positioned by a positioning large diameter shaft portion 44 which is a positioning portion. The deformable body 42 is composed of an elastic member 43 that is elastically deformable and is integrally formed of rubber or synthetic resin into a substantially cylindrical shape.
【００２９】また、軸体41の軸方向一端側（進行方向左
端側）の外周側には、変形体42を軸方向に圧縮弾性変形
させて外径を増大せしめてこの変形体42の外周側を各開
口部23，31の２つの周縁部分23b，31bにそれぞれ密着さ
せる取着体である螺着具を構成する２つのナット（ダブ
ルナット）45が、変形体42の一端面に押し付けられるよ
うに、取着、例えば螺着される。On the outer peripheral side of the shaft 41 on the one axial side (the left side in the advancing direction), the deformable body 42 is compressed and elastically deformed in the axial direction to increase the outer diameter of the deformable body 42. The two nuts (double nuts) 45, which constitute a screwing tool that is an attachment body for closely adhering the two to the two peripheral edge portions 23b and 31b of the openings 23 and 31, respectively, are pressed against one end surface of the deformable body 42. It is attached, for example, screwed.
【００３０】一方、軸体41の軸方向他端側（進行方向右
端側）の外周側には、第２の整地体12の第２突出板部28
に対して軸体41を一体的に固定するための固定用取着体
である固定用螺着具を構成する１つの固定用ナット46
が、軸体41の位置決め径大軸部44とともに第２突出板部
28の周縁部分32bおよび座金47を両側方から挟持するよ
うに、取着、例えば螺着されている。On the other hand, the second projecting plate portion 28 of the second ground leveling body 12 is provided on the outer peripheral side of the shaft body 41 on the other end side in the axial direction (on the right end side in the traveling direction).
One fixing nut 46 that constitutes a fixing screw attachment tool that is a fixing attachment body for integrally fixing the shaft body 41 to the
Is the second protruding plate portion together with the large diameter positioning shaft portion 44 of the shaft body 41.
The peripheral edge portion 32b of 28 and the washer 47 are attached, for example, screwed so as to sandwich the washer 47 from both sides.
【００３１】この軸体41は、例えば金属で一体に中実の
略円柱形状に形成されたもので、変形体42が外周側に嵌
着された丸軸状の軸部51を有し、この軸部51は外周面が
円筒面状に形成されている。この軸部51の一端部には、
外周面にねじ溝52が形成された第１ねじ軸部53が一体に
設けられている。そして、この第１ねじ軸部53のねじ溝
52に２つのナット45がそれぞれ螺着される。The shaft 41 is made of, for example, metal and integrally formed into a solid substantially cylindrical shape, and has a round shaft-shaped shaft portion 51 to which the deformable body 42 is fitted on the outer peripheral side. The outer peripheral surface of the shaft portion 51 is formed in a cylindrical surface shape. At one end of this shaft 51,
A first screw shaft portion 53 having a thread groove 52 formed on the outer peripheral surface is integrally provided. Then, the thread groove of the first screw shaft portion 53
Two nuts 45 are respectively screwed onto 52.
【００３２】また、軸部51の他端部には、この軸部51よ
り外径が大きい丸軸状の位置決め径大軸部44が一体に設
けられ、この位置決め径大軸部44が第２突出板部28に当
接している。なお、この位置決め径大軸部44の外径は、
開口部23の周縁部分23bの内径よりやや小さく、変形前
の状態の変形体42の外径と略等しい値に設定されてい
る。A round shaft-shaped large-diameter shaft portion 44 having an outer diameter larger than that of the shaft portion 51 is integrally provided at the other end of the shaft portion 51. It is in contact with the protruding plate portion 28. The outer diameter of the positioning diameter large shaft portion 44 is
The diameter is slightly smaller than the inner diameter of the peripheral portion 23b of the opening 23, and is set to a value substantially equal to the outer diameter of the deformable body 42 in a state before deformation.
【００３３】さらに、この位置決め径大軸部44の第２突
出板部28側の端部には、この位置決め径大軸部44より外
径が小さい丸軸状の嵌合軸部55が一体に設けられ、この
嵌合軸部55が第２突出板部28の嵌合用開口部32に嵌合し
ている。Further, a round shaft-like fitting shaft portion 55 having an outer diameter smaller than that of the large diameter positioning shaft portion 44 is integrally formed at the end portion of the large diameter positioning shaft portion 44 on the second projecting plate portion 28 side. The fitting shaft portion 55 is provided and fits into the fitting opening portion 32 of the second projecting plate portion 28.
【００３４】また、この嵌合軸部55の端部には、外周面
にねじ溝56が形成された第２ねじ軸部57が一体に設けら
れている。そして、この第２ねじ軸部57のねじ溝56に固
定用ナット46が螺着され、この螺着された固定用ナット
46と位置決め径大軸部44とによって第２突出板部28の周
縁部分32bおよび座金47が強固に挟持されている。さら
に、この軸体41の両端部には、耕耘体６の深さを一定に
するための深さ調節機構の固定用孔部58が開口形成され
ている。A second screw shaft portion 57 having a thread groove 56 formed on the outer peripheral surface is integrally provided at the end of the fitting shaft portion 55. Then, the fixing nut 46 is screwed into the thread groove 56 of the second screw shaft portion 57, and the screwed fixing nut is screwed.
The peripheral edge portion 32b of the second projecting plate portion 28 and the washer 47 are firmly sandwiched by the 46 and the large-diameter positioning shaft portion 44. Further, fixing holes 58 of a depth adjusting mechanism for making the depth of the tiller 6 constant are formed at both ends of the shaft body 41.
【００３５】なお、軸体41とこの軸体41の外周側に嵌着
された変形体42とにて、互いに離間対向した開口部23，
31に対して遊挿可能な連結軸本体61が構成されている。
そして、この連結軸本体61は、変形体42にて構成された
変形可能な変形部62を軸方向中央部外周側に有してい
る。また、この連結軸本体61および第１の整地体11の開
口部23の周縁部分23b間の間隙63と、連結軸本体61およ
び第２の整地体12の開口部31の周縁部分31b間の間隙64
とが埋められるように、連結軸本体61の変形部62を変形
させる間隙埋め手段65が、２つのナット45にて構成され
ている。The shaft body 41 and the deformable body 42 fitted on the outer peripheral side of the shaft body 41 are spaced apart from each other by the openings 23,
A connecting shaft main body 61 that can be loosely inserted into 31 is configured.
The connecting shaft main body 61 has a deformable deformable portion 62 formed of the deformable body 42 on the outer peripheral side in the axial center portion. Further, a gap 63 between the connecting shaft body 61 and the peripheral edge portion 23b of the opening 23 of the first ground leveling body 11 and a gap between the connecting shaft body 61 and the peripheral edge portion 31b of the opening portion 31 of the second leveling body 12. 64
The gap filling means 65 for deforming the deforming portion 62 of the connecting shaft body 61 is configured by the two nuts 45 so that
【００３６】次に、上記一実施の形態の作用等を説明す
る。Next, the operation and the like of the above embodiment will be described.
【００３７】連結軸14を用いて、第１の整地体11と第２
の整地体12とを回動可能に連結する場合、略円筒形状の
変形体42を、この変形体42が位置決め径大軸部44に位置
決めされた状態で軸部51の外周面全体および第１ねじ軸
部53の外周面一部にわたって位置するように、軸体41の
外周側に嵌着する。Using the connecting shaft 14, the first leveling body 11 and the second leveling body 11
In the case of rotatably connecting the ground leveling body 12 of FIG. It is fitted on the outer peripheral side of the shaft body 41 so as to be located over a part of the outer peripheral surface of the screw shaft portion 53.
【００３８】次いで、この変形体42が嵌着された軸体4
1、すなわち連結軸本体61を、この連結軸本体61の軸方
向に沿って位置決め径大軸部44が第２突出板部28に当接
するまで移動させるようにして、同軸上に位置する３つ
の開口部23，31，32に対して差し込むと、この連結軸本
体61が、第１の整地体11の突出板部22の開口部23および
第２の整地体12の第１突出板部27の開口部31に間隙63，
64を介して遊挿され、かつ、第２の整地体12の第２突出
板部28の嵌合用開口部32に嵌合された状態になる。Next, the shaft body 4 in which the deformable body 42 is fitted
1, that is, the connecting shaft main body 61 is moved along the axial direction of the connecting shaft main body 61 until the positioning large-diameter shaft portion 44 comes into contact with the second projecting plate portion 28. When the connection shaft body 61 is inserted into the openings 23, 31, 32, the connecting shaft main body 61 of the opening 23 of the protruding plate portion 22 of the first ground leveling body 11 and the first protruding plate portion 27 of the second ground leveling body 12 is inserted. A gap 63 in the opening 31
It is loosely inserted via 64 and fitted into the fitting opening 32 of the second projecting plate portion 28 of the second ground leveling body 12.
【００３９】この連結軸本体61の差し込みは、変形体42
の外径および位置決め径大軸部44の外径が開口部23，31
の周縁部分23b，31bの内径より小さいので容易に行え
る。This connecting shaft body 61 is inserted by the deformable body 42.
Outer diameter and positioning diameter of the large shaft portion 44 is the opening 23, 31
Since it is smaller than the inner diameters of the peripheral edge portions 23b and 31b, it can be easily performed.
【００４０】次いで、座金47を連結軸本体61の軸体41の
第２ねじ軸部57の外周側に嵌め込んだ後に、この第２ね
じ軸部57の外周側に固定用ナット46をねじ込んで螺着す
る。すると、図１に示すように、固定用ナット46と軸体
41の位置決め径大軸部44とによって、第２突出板部28の
周縁部分32bおよび座金47が締付け挟持され、軸体41が
第２突出板部28に対して固定された状態になる。Then, after the washer 47 is fitted on the outer peripheral side of the second screw shaft portion 57 of the shaft body 41 of the connecting shaft body 61, the fixing nut 46 is screwed on the outer peripheral side of the second screw shaft portion 57. Screw on. Then, as shown in FIG. 1, the fixing nut 46 and the shaft body
The peripheral diameter portion 32b of the second projecting plate portion 28 and the washer 47 are clamped and clamped by the positioning large diameter shaft portion 44 of 41, and the shaft body 41 is fixed to the second projecting plate portion 28.
【００４１】次いで、この固定された軸体41の第１ねじ
軸部53の外周側に、間隙埋め手段65である２つのナット
45を順次ねじ込んで螺着する。この際、１個目のナット
45を変形体42の端面に押し付けて圧接させると、図２に
示すように、変形体42は、ナット45にて押されてその軸
方向に圧縮弾性変形してこの変形体42の肉厚が太くな
り、外周面側が外径方向に逃げるように膨らんでこの変
形体42の外径が増大し、その結果、この変形体42の外周
側が、第１の整地体11および第２の整地体12の各開口部
23，31の２つの周縁部分23b，31bにそれぞれ密着した状
態になる。Next, on the outer peripheral side of the first screw shaft portion 53 of the fixed shaft body 41, two nuts serving as gap filling means 65 are provided.
Screw 45 in order and screw in. At this time, the first nut
When 45 is pressed against the end face of the deformable body 42 and brought into pressure contact therewith, as shown in FIG. 2, the deformable body 42 is pressed by the nut 45 and is compressed and elastically deformed in the axial direction so that the wall thickness of the deformable body 42 is reduced. It becomes thicker and the outer peripheral surface side bulges so as to escape in the outer diameter direction, and the outer diameter of the deformable body 42 increases. As a result, the outer peripheral side of the deformable body 42 becomes the first leveled body 11 and the second leveled body 12 Each opening
The two peripheral portions 23b and 31b of 23 and 31 are in close contact with each other.
【００４２】そして、このような変形体42の弾性変形に
より、この弾性変形した状態の変形体42によって、連結
軸本体61および第１の整地体11の開口部23の周縁部分23
b間の間隙63と、連結軸本体61および第２の整地体12の
開口部31の周縁部分31b間の間隙64とが埋められる。こ
のような組付け作業等により、第１の整地体11に第２の
整地体12が回動可能に連結される。なお、２つのナット
45を緩めれば、変形体42は弾性に基づく復元力でもとの
形状に復帰するため、連結軸本体61は容易に取り外せ
る。Due to the elastic deformation of the deformable body 42, the peripheral portion 23 of the opening 23 of the connecting shaft main body 61 and the first leveling body 11 is deformed by the elastically deformed deformable body 42.
A gap 63 between b and a gap 64 between the connecting shaft main body 61 and the peripheral edge portion 31b of the opening 31 of the second leveling body 12 are filled. The second leveling body 12 is rotatably connected to the first leveling body 11 by such assembling work. Two nuts
When 45 is loosened, the deformable body 42 returns to its original shape with a restoring force based on elasticity, so that the connecting shaft body 61 can be easily removed.
【００４３】そして、トラクタに装着した農作業機１を
用いて所望の対土作業をする場合、トラクタの牽引によ
りその農作業機１を移動させると、耕耘体６にて耕耘作
業が行われ、第１の整地体11および第２の整地体12にて
整地作業が行われる。その結果、圃場の土が耕耘砕土さ
れ、水平面状に均される。この際、第２の整地体12は、
圃場の凸凹等に応じて第１の整地体11に対して連結軸14
と一体となって回動する。すなわち、第１の整地体11の
突出板部22の周縁部分23bの内周面に対して連結軸14の
変形体42の外周面が滑ることにより、第２の整地体12が
第１の整地体11に対して連結軸14とともに回動するので
ある。When a desired soil work is carried out by using the agricultural work machine 1 mounted on the tractor, when the agricultural work machine 1 is moved by pulling the tractor, the cultivating body 6 carries out the plowing work. Ground leveling work is performed by the ground leveling body 11 and the second ground leveling body 12. As a result, the soil in the field is cultivated and flattened in a horizontal plane. At this time, the second leveling body 12 is
The connecting shaft 14 is connected to the first leveling body 11 according to the unevenness of the field.
It rotates together with. That is, by sliding the outer peripheral surface of the deformable body 42 of the connecting shaft 14 with respect to the inner peripheral surface of the peripheral edge portion 23b of the projecting plate portion 22 of the first leveled body 11, the second leveled body 12 becomes the first leveled surface. It rotates with the connecting shaft 14 with respect to the body 11.
【００４４】このようにして、上記一実施の形態によれ
ば、螺着具を構成する２つのナット45にて変形体42を外
径が増大するように変形させて、この変形体42の外周側
を第１の整地体11および第２の整地体12の各周縁部分23
b，31bに密着させることができるので、組付け作業が容
易であるばかりでなく、対土作業の際のがたつきの発生
を抑制でき、静音化を図ることができる。すなわち、例
えば第１の整地体11と第２の整地体12との連結部分でが
たつきが生じることがなく、対土作業時における防音、
防振効果を高めることができる。As described above, according to the above-described embodiment, the deformable body 42 is deformed by the two nuts 45 constituting the screw fitting so that the outer diameter increases, and the outer periphery of the deformable body 42 is increased. The sides are the peripheral portions 23 of the first leveling body 11 and the second leveling body 12, respectively.
Since it can be closely attached to b and 31b, not only the assembling work is easy, but also rattling at the time of soil work can be suppressed and the noise can be reduced. That is, for example, rattling does not occur at the connecting portion between the first leveling body 11 and the second leveling body 12, and soundproofing during soil work,
The vibration damping effect can be enhanced.
【００４５】また、軸体41の外周側に螺着する螺着具が
２つのナット45にて構成されているので、ナット45が緩
んでしまうようなことがなく、変形体42が径大状つまり
肉厚状に変形した変形状態を適切に維持できる。Further, since the screw-fastening tool screwed to the outer peripheral side of the shaft body 41 is composed of the two nuts 45, the nut 45 does not become loose and the deformable body 42 has a large diameter. That is, it is possible to properly maintain the deformed state in which the material is deformed into a thick shape.
【００４６】なお、上記実施の形態においては、連結軸
14を第１の整地体11と第２の整地体12との連結部分に用
いた場合について説明したが、例えば、トラクタの３点
リンク機構等の作業機連結部と農作業機１のトラクタ連
結部２との連結部分に適用することもできる。In the above embodiment, the connecting shaft
Although the case where 14 is used for the connecting portion between the first leveling body 11 and the second leveling body 12 has been described, for example, a work machine connecting portion such as a three-point link mechanism of a tractor and a tractor connecting portion of the agricultural work machine 1 are described. It can also be applied to the connecting portion with 2.
【００４７】[0047]
【発明の効果】請求項１の発明によれば、間隙埋め手段
にて連結軸本体の変形部を変形させることで、連結軸本
体および被連結体の開口部の周縁部分間の間隙と連結軸
本体および連結体の開口部の周縁部分間の間隙とを埋め
ることができるので、がたつきの発生を抑制でき、静音
化を図ることができる。According to the first aspect of the present invention, by deforming the deforming portion of the connecting shaft body by the gap filling means, the gap between the peripheral portion of the opening of the connecting shaft body and the connected body and the connecting shaft. Since it is possible to fill the gap between the peripheral portions of the openings of the main body and the connecting body, it is possible to suppress rattling and to reduce noise.
【００４８】請求項２の発明によれば、取着体にて変形
体を変形させてこの変形体の外周側を被連結体および連
結体の各開口部の周縁部分に密着させることができるの
で、がたつきの発生を抑制でき、静音化を図ることがで
きる。According to the second aspect of the present invention, the deformable body can be deformed by the attachment body, and the outer peripheral side of the deformable body can be brought into close contact with the peripheral portions of the openings of the connected body and the connected body. It is possible to suppress the occurrence of rattling and reduce noise.
【００４９】請求項３の発明によれば、変形体が弾性変
形可能な弾性部材にて構成されているので、がたつきの
発生を適切に抑制でき、より一層の静音化を図ることが
できる。According to the third aspect of the invention, since the deformable body is composed of the elastic member capable of elastically deforming, it is possible to appropriately suppress the rattling and further reduce the noise.
【００５０】請求項４の発明によれば、軸体の外周側に
螺着される螺着具にて変形体の変形状態を適切に維持で
きる。According to the fourth aspect of the present invention, the deformed state of the deformable body can be appropriately maintained by the screwing tool screwed to the outer peripheral side of the shaft body.
【００５１】請求項５の発明によれば、耕耘体で耕耘作
業をしかつ第１の整地体および第２の整地体で整地作業
をする場合におけるがたつきの発生を抑制でき、静音化
を図ることができる。According to the fifth aspect of the present invention, it is possible to suppress rattling in the case of performing the plowing work with the cultivating body and the grading work with the first leveling body and the second leveling body, thereby achieving quietness. be able to.
【図１】本発明の農作業機用の連結軸の一実施の形態を
示す断面図である。FIG. 1 is a cross-sectional view showing an embodiment of a connecting shaft for an agricultural work machine of the present invention.
【図２】同上農作業機用の連結軸の変形部が変形した状
態での断面図である。FIG. 2 is a cross-sectional view showing a state in which a deforming portion of a connecting shaft for an agricultural working machine is deformed.
【図３】同上農作業機用の連結軸を具備した農作業機の
一部平面図である。FIG. 3 is a partial plan view of the agricultural working machine equipped with the connecting shaft for the agricultural working machine.
【図４】同上農作業機の全体側面図である。FIG. 4 is an overall side view of the same agricultural working machine.
１ 農作業機 ６ 耕耘体 11 被連結体である第１の整地体 12 連結体である第２の整地体 14 農作業機用の連結軸 23，31 開口部 23b，31b 周縁部分 41 軸体 42 変形体 43 弾性部材 45 取着体である螺着具を構成するナット 61 連結軸本体 62 変形部 63，64 間隙 65 間隙埋め手段 1 farm work machine 6 cultivated bodies 11 First leveled body that is the connected body The second ground level body that is a 12-connected body 14 Connecting shaft for agricultural machinery 23,31 opening 23b, 31b peripheral part 41 axis 42 deformed body 43 Elastic member 45 Nuts that make up a screw attachment that is an attachment 61 Connection shaft body 62 Deformation part 63, 64 gap 65 Gap filling means
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) A01B 35/04,33/12 F16D 1/06 F16C 17/00,33/00 Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) A01B 35 / 04,33 / 12 F16D 1/06 F16C 17 / 00,33 / 00
Claims (5)
ための農作業機用の連結軸であって、 前記被連結体の開口部および前記連結体の開口部に遊挿
され、外周側に変形部を有する連結軸本体と、 この連結軸本体および前記被連結体の前記開口部の周縁
部分間の間隙と前記連結軸本体および前記連結体の前記
開口部の周縁部分間の間隙とが埋められるように、前記
連結軸本体の前記変形部を変形させる間隙埋め手段とを
備えることを特徴とする農作業機用の連結軸。1. A connecting shaft for an agricultural work machine for rotatably connecting a connected body to a connected body, wherein the connecting shaft is loosely inserted into the opening of the connected body and the opening of the connected body, and has an outer periphery. A connecting shaft main body having a deformable portion on the side, a gap between the connecting shaft main body and a peripheral edge portion of the opening of the connected body, and a gap between the connecting shaft main body and a peripheral edge portion of the opening of the connecting body. And a gap filling unit that deforms the deformable portion of the connecting shaft body so that the connecting shaft body is filled with the gap.
ための農作業機用の連結軸であって、 前記被連結体の開口部および前記連結体の開口部に遊挿
される略円柱形状の軸体と、 この軸体の外周側に嵌着され、変形前の状態では外径が
前記各開口部の周縁部分の内径より小さい状態になって
いる略円筒形状の変形体と、 前記軸体の外周側に前記変形体の端面に押し付けられる
ように取着され、前記変形体を変形させてこの変形体の
外周側を前記各開口部の周縁部分に密着させる取着体と
を備えることを特徴とする農作業機用の連結軸。2. A connecting shaft for an agricultural work machine for rotatably connecting a connected body to a connected body, wherein the connecting shaft is substantially cylindrical and is loosely inserted into the opening of the connected body and the opening of the connected body. And a substantially cylindrical deformable body fitted to the outer peripheral side of the shaft body and having an outer diameter smaller than the inner diameter of the peripheral portion of each opening before being deformed, An attachment body attached to the outer peripheral side of the shaft body so as to be pressed against the end face of the deformable body, and deforming the deformable body to bring the outer peripheral side of the deformable body into close contact with the peripheral edge portion of each opening. A connecting shaft for agricultural work machines characterized by the above.
構成されていることを特徴とする請求項２記載の農作業
機用の連結軸。3. The connecting shaft for an agricultural work machine according to claim 2, wherein the deformable body is composed of an elastic member that is elastically deformable.
着具であることを特徴とする請求項２または３記載の農
作業機用の連結軸。4. The connecting shaft for an agricultural work machine according to claim 2, wherein the attachment body is a screw attachment tool screwed onto the outer peripheral side of the shaft body.
し４のいずれか一記載の農作業機用の連結軸と、 所定方向に回転しながら耕耘作業をする耕耘体と、 この耕耘体の後方位置に上下方向に回動可能に配置さ
れ、整地作業をする被連結体である第１の整地体と、 この第１の整地体に前記連結軸を介して上下方向に回動
可能に連結され、整地作業をする連結体である第２の整
地体とを具備することを特徴とする農作業機。5. The connecting shaft for an agricultural work machine according to claim 1, which has an axial direction in the left-right direction, a cultivating body for cultivating work while rotating in a predetermined direction, and a rear side of the cultivating body. A first ground body, which is a body to be grounded and is rotatably arranged in a vertical direction, and is connected to the first ground body through the connecting shaft so as to be vertically rotatable. And a second leveling body which is a connection body for leveling work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002028105A JP3510233B2 (en) | 2002-02-05 | 2002-02-05 | Connecting shaft for agricultural work machine and agricultural work machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002028105A JP3510233B2 (en) | 2002-02-05 | 2002-02-05 | Connecting shaft for agricultural work machine and agricultural work machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003225002A JP2003225002A (en) | 2003-08-12 |
| JP3510233B2 true JP3510233B2 (en) | 2004-03-22 |
Family
ID=27749426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002028105A Expired - Fee Related JP3510233B2 (en) | 2002-02-05 | 2002-02-05 | Connecting shaft for agricultural work machine and agricultural work machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3510233B2 (en) |
-
2002
- 2002-02-05 JP JP2002028105A patent/JP3510233B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003225002A (en) | 2003-08-12 |
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