JPS642598Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は、コンバイン等の収穫機における扱深
さ制御装置のメインセンサに関する。[Detailed Description of the Invention] The present invention relates to a main sensor of a handling depth control device in a harvester such as a combine harvester.

従来、扱深さ制御装置は、倒伏稈で使用した場
合、稈がもつれて搬送され、乱れた状態にあるた
め、扱深さセンサに確実に当接せず、極度の深扱
ぎ状態になつていた。そのため、倒伏稈では扱深
さ制御装置の自動を切つていたが、この場合、全
てが倒伏稈の圃場では終始自動を切つていれば良
いが、立稈と倒伏稈が混在した圃場では、オペレ
ータが自動を切るタイミング、又は自動を入れる
べきか否かの判別が困難であり、更に立稈から倒
伏稈箇所に急に突込んだ場合、自動制御では深扱
ぎとなり、非常に不安定な扱深さになつていた。
また、倒伏稈を検知するセンサを機体前方又はナ
ローガイドに取付けたものも提案されているが、
機体前方に設けたものは、機体が大きくなり、か
つ刈取り終了時に短時間ながら誤信号を発し、ま
たナローガイドに設けたものは、稈が機体側に倒
れている場合、ナローガイドにすつてセンサをオ
ンし、倒伏稈を立稈と誤信号を発してしまい、更
に最後の条列では機体側方に未刈り稈がなくなつ
て検知不能になつていた。 Conventionally, when using a handling depth control device on a fallen culm, the culm is transported in a tangled manner and is in a disordered state, so it does not contact the handling depth sensor reliably, resulting in extremely deep handling. was. For this reason, the automatic handling depth control device was turned off for lodging culms, but in this case, in a field where all lodging culms are used, it is sufficient to keep the automatic setting turned off from beginning to end, but in a field with a mixture of upright and lodging culms, , it is difficult for the operator to judge when to turn off the automatic, or whether or not to turn on the automatic, and furthermore, if the operator suddenly goes from a standing culm to a lodging culm, the automatic control will not be able to handle it properly, making it extremely unstable. It had become a serious matter of concern.
In addition, a sensor for detecting a lodging culm is attached to the front of the aircraft or to the narrow guide, but
The one installed at the front of the machine will cause the machine to grow larger and will emit an erroneous signal for a short time at the end of the harvest, while the one installed on the narrow guide will cause the sensor to emit a sensor if the culm falls towards the machine. was turned on, giving a false signal that a fallen culm was a standing culm, and furthermore, in the last row, there were no uncut culms on the sides of the aircraft, making it impossible to detect.

そこで、本考案は、株元側を自由状態にして穀
稈を脱穀機に向けて搬送する穀稈搬送装置を有す
る収穫機において、該穀稈搬送装置から株元側に
所定距離離れて配置され、正常稈の場合は株元を
検知しかつ倒伏稈の場合は稈剛性の抵下に起因す
る自由状態にある株元の垂下がりに基づき該株元
を検知しない位置に扱深さメインセンサを設置
し、もつて稈の倒伏状態に基づく株元の稈剛性の
相違により、搬送姿勢が異なる性質を利用して、
上述欠点を解消した収穫機における扱深さメイン
センサを提供することを目的とするものである。 Therefore, the present invention provides a harvester having a grain culm transport device that transports grain culms toward a thresher with the stock side in a free state. In the case of a normal culm, the handling depth main sensor is installed at a position that detects the root of the culm, but in the case of a lodging culm, it does not detect the root of the culm based on the drooping of the root of the culm in a free state due to a decrease in culm rigidity. By using the property that the transportation posture differs due to the difference in the stiffness of the culm of the plant based on the lodging state of the culm,
It is an object of the present invention to provide a handling depth main sensor for a harvester that eliminates the above-mentioned drawbacks.

以下、図面に沿つて本考案による実施例を説明
する。 Embodiments of the present invention will be described below with reference to the drawings.

コンバイン１は、第１図に示すように、脱穀機
２、ホツパー３及び運転席５等よりなる機体６を
有しており、機体６の前方には前処理部７が昇降
自在に支持されている。また、前処理部７から脱
穀機２に渡つて刈取り穀稈を搬送する穀稈搬送装
置９が配設されており、該穀稈搬送装置９には扱
深さセンサ１０が配置されている。そして、第２
図及び第３図に示すように、穀稈搬送装置９は爪
付きチエーン１１等よりなり、穀稈の中央部分を
挟持しながら株元側を自由状態にて第２図矢印方
向に搬送し、かつ該搬送方向支点Ｐを中心に揺動
自在に支持されており、脱穀機２の挾やくチエー
ンへの受渡し位置を調整できる。また、穀稈搬送
装置９にはその株元搬送経路中にフレーム１２を
介して扱深さメインセンサ１３が取付けられてお
り、センサ１３は所定長さ位置Ｌにおける穀稈１
５の株元１５ａを検知し得る。 As shown in FIG. 1, the combine 1 has a body 6 consisting of a threshing machine 2, a hopper 3, a driver's seat 5, etc., and a pre-processing section 7 is supported at the front of the body 6 so as to be movable up and down. There is. Further, a grain culm conveying device 9 is disposed to convey the reaped grain culm from the pre-processing section 7 to the threshing machine 2, and a handling depth sensor 10 is disposed in the grain culm conveying device 9. And the second
As shown in the figure and FIG. 3, the grain culm conveying device 9 consists of a chain 11 with claws, etc., and conveys the grain culm in the direction of the arrow in FIG. Moreover, it is supported so as to be able to swing freely around the fulcrum P in the conveyance direction, and the delivery position to the threshing chain of the threshing machine 2 can be adjusted. In addition, a handling depth main sensor 13 is attached to the grain culm conveying device 9 via a frame 12 in the grain conveying route, and the sensor 13 detects the grain culm 1 at a predetermined length position L.
5 stock origin 15a can be detected.

ところで、第４図に示すように、穀稈１５が立
稈である場合、株元１５ａの剛性は強く、穀稈１
５は搬送装置９に挾持されても、自由状態にある
株元は重力に打勝つて略々真直ぐに運ばれ、従つ
て株元１５ａ端の搬送装置９からの距離A₁は長
くなる。また、第５図に示すように、穀稈１５が
少し倒れている場合、株元１５ａの剛性は少し弱
く、傾斜して登り状態にある搬送装置９は、その
穀稈中央部分を挟持して所定速さで斜上方に移動
するが、自由状態にある株元１５ａは重力及び搬
送慣性力によりやや垂れ下がり状態になつてくの
字状に曲がり、従つて株元１５ａ端の搬送装置９
からの距離A₂は前記A₁より短かくなる。更に、
第６図に示すように、穀稈１５が完全に倒れてい
る場合、株元１５ａの剛性は非常に弱く、株元１
５ａは重力及び搬送慣性力により垂れ下がつて、
搬送装置９による搬送姿勢も大きくくの字状に曲
がり、従つて株元１５ａ端の搬送装置９からの距
離A₃は前記A₂よりも更に短かくなる。 By the way, as shown in FIG. 4, when the grain culm 15 is a vertical culm, the rigidity of the stock base 15a is strong, and the grain culm 1
5 is held by the conveying device 9, the stock head in a free state overcomes gravity and is carried almost straight, so that the distance A ₁ from the end of the stock head 15a from the conveying device 9 becomes long. Further, as shown in FIG. 5, when the grain culm 15 is slightly tilted, the rigidity of the stock base 15a is a little weak, and the conveying device 9, which is in an inclined and climbing state, will not hold the central part of the grain culm. Although the stock head 15a moves obliquely upward at a predetermined speed, the stock head 15a in a free state becomes slightly sagging due to gravity and conveying inertia and bends in a dogleg shape, so that the transport device 9 at the end of the stock head 15a
The distance _A2 from the point A2 is shorter than the distance _A1 . Furthermore,
As shown in FIG. 6, when the grain culm 15 is completely collapsed, the rigidity of the stock base 15a is very weak, and the stock base 15a is very weak.
5a hangs down due to gravity and transport inertia,
The conveying posture by the conveying device 9 is also bent into a dogleg shape, so that the distance A ₃ from the end of the stock 15a to the conveying device 9 is even shorter than the distance A ₂ .

そこで、本考案による扱深さメインセンサ１３
は前記距離A₁−A₃の位置、即ち正常稈の場合は
株元が当接し、かつ倒伏稈の場合は株元が当接し
ない位置Ｌに設置されている。 Therefore, the handling depth main sensor 13 according to the present invention
is installed at the distance A ₁ -A ₃ , that is, at a position L where the plant base contacts in the case of a normal culm, and where the plant base does not contact in the case of a lodging culm.

そして、第７図に示すように、扱深さ自動スイ
ツチ１６に直列に扱深さメインセンサ１３により
作動されるスイツチ１３′が接続され、更に扱深
さセンサ１０等の扱深さ制御装置１０′が接続さ
れている。また、扱深さ制御装置１０′は駆動モ
ータ１７を作動し得、モータ１７は搬送装置９を
揺動し得る。 As shown in FIG. 7, a switch 13' operated by the main handling depth sensor 13 is connected in series to the automatic handling depth switch 16, and a handling depth control device 10 such as the handling depth sensor 10 is connected in series. ′ is connected. The handling depth control device 10 ′ can also operate a drive motor 17 , which can swing the conveying device 9 .

本考案は以上のような構成よりなるので、穀稈
１５が立稈である場合、扱深さメインセンサ１３
は株元１５ａを検知してスイツチ１３′をオン状
態に保つ。この状態で、扱深さ自動スイツチ１６
をオンしていると、扱深さ制御装置１０′が作動
され、扱深さセンサ１０により駆動モータ１７が
駆動され、搬送装置９を稈長さに応じた適正な位
置に保持する。これにより、脱穀機２は適正な扱
深さで脱穀し得る。一方、穀稈１５が倒伏してい
る場合、搬送装置９において株元１５ａが曲がつ
て所定長さ位置Ｌまで届かず、扱深さメインセン
サ１３は株元１５ａに当接しないでスイツチ１
３′はオフに切換えられる。すると、扱深さ制御
装置１０′は自動的にその作動が停止される。 Since the present invention has the above configuration, when the grain culm 15 is a vertical culm, the handling depth main sensor 13
detects the stock source 15a and keeps the switch 13' in the on state. In this state, the automatic handling depth switch 16
When turned on, the handling depth control device 10' is activated, the driving motor 17 is driven by the handling depth sensor 10, and the conveying device 9 is held at an appropriate position according to the culm length. Thereby, the threshing machine 2 can thresh the grain at an appropriate handling depth. On the other hand, when the grain culm 15 is lying down, the stock head 15a is bent in the conveyor 9 and does not reach the predetermined length position L, and the handling depth main sensor 13 does not touch the stock head 15a and is turned off by the switch 1.
3' is switched off. Then, the working depth control device 10' is automatically deactivated.

以上説明したように、本考案によれば、穀稈搬
送装置９の株元搬送経路中に、正常稈の場合は株
元が当接し、倒伏稈の場合は株元に当接しない位
置に扱深さメインセンサ１３を設置したので、稈
の株元の剛性により搬送姿勢が異なる性質を利用
して、倒伏稈か否かを判別でき、また立稈から倒
伏稈箇所に急に突込んだ場合も、オペレータの操
作を問わず、自動的に扱深さ制御１０′の回路を
切るので、搬送装置９は立稈時状態を保ち、急激
に深扱ぎとなることを防止して安定した扱深さを
保つことができ、立稈と倒伏稈が混在している圃
場でも容易かつ確実に作業を続けることができ
る。 As explained above, according to the present invention, during the stock root conveyance route of the grain culm conveying device 9, in the case of a normal culm, the grain head comes into contact with the grain stalk, and in the case of a lodging culm, it is handled in a position where it does not come into contact with the grain head. Since the depth main sensor 13 is installed, it is possible to determine whether or not a culm is a lodging culm by utilizing the property that the conveyance posture differs depending on the rigidity of the base of the culm. Also, if the culm suddenly plunges into a lodging culm location from a vertical culm, In this case, the handling depth control 10' circuit is automatically cut off regardless of the operator's operation, so the conveying device 9 maintains the vertical culm state, prevents sudden deep handling, and ensures stable handling. The depth can be maintained, and work can be continued easily and reliably even in fields where vertical culms and fallen culms coexist.

また、メインセンサを利用して倒伏稈を検知す
るので、機体前方又はナローガイドにセンサを別
設する必要がなく、構造が簡単であると共に、圃
場端又は条列端においても誤信号を発することは
ない。 In addition, since the main sensor is used to detect lodging culms, there is no need to separately install a sensor in the front of the machine or in the narrow guide, and the structure is simple, and there is no need to issue false signals at the edge of the field or row edge. There isn't.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案を適用し得るコンバインを示す
平面図、第２図は扱深さメインセンサ部分の正面
図、第３図はその側面図、第４図ないし第６図は
それぞれ異なる状態を示す作動説明図で、それぞ
れａは搬送姿勢を示す図、ｂは穀稈の状態を示す
図であり、第７図は電気回路図である。 １…収穫機（コンバイン）、２…脱穀機、９…
穀稈搬送装置、１０，１０′…扱深さ制御装置、
３…扱深さメインセンサ、１５…穀稈、１５ａ…
株元。 Fig. 1 is a plan view showing a combine harvester to which the present invention can be applied, Fig. 2 is a front view of the main handling depth sensor section, Fig. 3 is a side view thereof, and Figs. 4 to 6 show different states. In these diagrams, a is a diagram showing the conveyance posture, b is a diagram showing the state of grain culms, and FIG. 7 is an electric circuit diagram. 1... Harvester (combiner), 2... Threshing machine, 9...
Grain culm conveyance device, 10, 10'...handling depth control device,
3... Main handling depth sensor, 15... Grain culm, 15a...
Stock owner.

Claims (1)

【実用新案登録請求の範囲】 株元側を自由状態にして穀稈を脱穀機に向けて
搬送する穀稈搬送装置を有する収穫機において、 前記穀稈搬送装置の搬送経路中に、該穀稈搬送
装置から株元側に所定距離離れて配置され、正常
稈の場合は株元を検知しかつ倒伏稈の場合は稈剛
性の低下に起因する自由状態にある株元の垂下が
りに基づき該株元を検知しない位置に扱深さメイ
ンセンサを設置した収穫機における扱深さメイン
センサ。[Scope of Claim for Utility Model Registration] In a harvesting machine having a grain culm transport device that transports grain culms toward a threshing machine with the stock side in a free state, It is placed a predetermined distance away from the conveying device toward the plant base, and detects the plant base in the case of a normal culm, and detects the plant base based on the drooping of the plant base in a free state due to a decrease in culm rigidity in the case of a lodging culm. The main handling depth sensor in a harvester is installed in a position where the main handling depth sensor does not detect the source.