JP2013066449A

JP2013066449A - Seedling transplanter

Info

Publication number: JP2013066449A
Application number: JP2011208943A
Authority: JP
Inventors: Hitoshi Yamazaki; 仁史山崎; Kazuhiko Ishii; 和彦石井
Original assignee: Iseki & Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Current assignee: Iseki & Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Priority date: 2011-09-26
Filing date: 2011-09-26
Publication date: 2013-04-18

Abstract

PROBLEM TO BE SOLVED: To provide a granule feeder (seedling transplanter) enabling that an operator can easily recognize run out of granules and surely replenish the granules to a granule-storing portion.SOLUTION: The granule feeder equipped with a rotary feeder 61 for receiving the granules from a fertilizer hopper 60 and discharging the granules at a prescribed feeding rate is provided with a residual quantity sensor 57 for detecting whether the quantity of the granules stored in the granule-storing portion 60 is a preset prescribed quantity or more, a buzzer 58 which is operated, when the residual quantity sensor 57 detects a quantity less than a prescribed quantity, a notification-stopping switch 59 for stopping the operation of the buzzer 58, a feeding rotation sensor 45 for detecting the rotational speed of the feeding roll 73 of the feeder 61, and a control constitution for again operating the buzzer 58, when the feeding rotation sensor 45 detects a prescribed rotational speed or more after the operation of the notification-stopping switch 59. The operator is prevented from forgetting a work for granule-replenishment, when the operator approaches the end of a field.

Description

この発明は、走行装置を有する機体に苗植付装置と施肥器を備えた粒状体供給装置（苗移植機）に関する。 The present invention relates to a granular material supply device (seedling transplanter) provided with a seedling planting device and a fertilizer on a machine body having a traveling device.

苗植付装置を機体後部に備えた粒状体供給装置（苗移植機）において、機体に施肥器を備え、圃場に苗を植え付ける前に施肥を行うことができる粒状体供給装置（苗移植機）が知られている。 In the granular material supply device (seedling transplanter) equipped with a seedling planting device at the rear of the machine body, the granular material supply device (seedling transplanter) can be equipped with a fertilizer and the fertilizer can be applied before planting seedlings in the field It has been known.

特開平１１−２５３０１１号公報JP-A-11-253011 特開２０１１−３０４３２号公報JP 2011-30432 A

特許文献１及び２記載の構成からなる苗移植機では、施肥器の肥料ホッパ内に充填した粒状体からなる肥料が所定量未満まで減少するとブザーが鳴り、粒状体の減少を作業者に報知するが、補充作業を行うことのできる圃場端まで距離がある場合、ブザーが鳴り続けているとうるさいので、これを停止させるブザー停止スイッチを設けている。
しかしながら、一度ブザー停止スイッチを作動させてしまうと、粒状体が不足していても再度報知することがないので、作業者がブザーの鳴ったことを忘れてしまうと、圃場端で粒状体の補充作業を行わずに次の条での作業に移行してしまい、作業途中で施肥器内に粒状体が無くなり圃場端まで移動して肥料の補充作業を行わなければならず、作業能率が大幅に低下する問題がある。 In the seedling transplanter having the configuration described in Patent Documents 1 and 2, a buzzer sounds when the fertilizer made of granular material filled in the fertilizer hopper of the fertilizer decreases to less than a predetermined amount, and notifies the operator of the decrease in granular material. However, when there is a distance to the end of the field where replenishment work can be performed, it is noisy if the buzzer continues to ring, so a buzzer stop switch is provided to stop it.
However, once the buzzer stop switch is activated, it will not be notified again even if the granular material is insufficient, so if the operator forgets that the buzzer has sounded, replenishing the granular material at the field end Without moving to the next section, the next section of the work will be shifted to, and during the work, there will be no granules in the fertilizer and it will have to move to the end of the field to replenish the fertilizer, greatly improving work efficiency. There is a problem that decreases.

また、施肥器の肥料ホッパに粒状体肥料を貯留して作業を行うと、時間の経過と共に肥料の粒状体同士が重量や水分によって塊になり、繰出し装置に繰り出されることなくホッパ内に残り、残量センサを誤検知させて粒状体が供給されない領域を生じさせてしまい、作業者が手作業で粒状体を供給しなおさねばならず、作業者の労力が増加する問題がある。
そこで、本発明の課題は、作業者が、粉粒体が無くなったことを容易に認識でき、粉粒体の貯留部への補充を確実に行うことができる粒状体供給装置（苗移植機）を提供することである。 Also, when granular fertilizer is stored in the fertilizer hopper of the fertilizer and the work is performed, the granular materials of the fertilizer become lumps by weight and moisture with the passage of time, and remain in the hopper without being fed to the feeding device, There is a problem in that the remaining amount sensor is erroneously detected to generate an area where the granular material is not supplied, and the operator has to manually supply the granular material again, which increases the labor of the operator.
Therefore, the problem of the present invention is that the worker can easily recognize that the granular material has been lost and can reliably replenish the storage part of the granular material (seedling transplanter). Is to provide.

上記課題は、下記構成によって達成される。
すなわち、請求項１に係る発明は、走行輪（１０，１１）を備えた走行車体（２）と、粒状体を貯める粒状体貯留部（肥料ホッパ）（６０）と、粒状体貯留部（６０）から粒状体を受けて所定量ずつ放出する回転式の繰出部（６１）を備えた粒状体供給装置において、粒状体貯留部（６０）に貯留された粒状体が予め設定された所定かさ高さ（例：肥料ホッパ（６０）の底部から約１０ｃｍの高さに設けられる残量センサ（５７）が検知する高さ）以上か否かを検知する残量検知装置（残量センサ）（５７）と、該残量検知装置（５７）が前記所定かさ高さ未満を検知すると作動する報知部材（ブザー等）（５８）と、該報知部材（５８）の作動を停止させる報知停止装置（報知停止スイッチ）（５９）と、該繰出し装置（６１）の繰出ロール回転数を検出する回転検知装置（繰出し回転センサ）（４５）と、該報知停止装置（５９）を操作した後に回転検知装置（４５）が所定以上の回転数（例：１０〜２０回転）を検知すると再度、報知部材（５８）を作動させる制御構成を有する制御装置（１００）を備えたことを特徴とする粒状体供給装置である。 The said subject is achieved by the following structure.
That is, the invention according to claim 1 includes a traveling vehicle body (2) provided with traveling wheels (10, 11), a granular material reservoir (fertilizer hopper) (60) for storing granular materials, and a granular material reservoir (60). In the granular material supply device having a rotary feeding unit (61) that receives granular materials from the same and discharges them in predetermined amounts, the granular material stored in the granular material storage unit (60) is set to a predetermined bulk height. Remaining amount detection device (remaining amount sensor) (57) that detects whether or not the height (example: height detected by the remaining amount sensor (57) provided at a height of about 10 cm from the bottom of the fertilizer hopper (60)) ), A notification member (such as a buzzer) (58) that operates when the remaining amount detection device (57) detects less than the predetermined bulk height, and a notification stop device (notification) that stops the operation of the notification member (58). Stop switch) (59) and the feeding device (61) The rotation detection device (feeding rotation sensor) (45) for detecting the rotation number of the motor and the rotation detection device (45) after operating the notification stop device (59) have a rotation speed higher than a predetermined value (for example, 10 to 20 rotations). It is a granular material supply apparatus provided with the control apparatus (100) which has a control structure which act | operates a notification member (58) again, if it detects.

請求項２に係る発明は、残量検知装置（５７）が粒状体貯留部（６０）内の粒状体の残量減少を検知して報知部材（５８）が作動した状態で、報知停止装置（５９）が所定時間以上（例：５秒）連続操作されると、制御装置（１００）は、回転検知装置（４５）が該繰出し装置（６１）の第１の所定回転数（例：１０〜２０回転）以上の回転を検出しても報知部材（５８）を作動させない制御構成を有することを特徴とする請求項１記載の粒状体供給装置である。 The invention according to claim 2 is a notification stop device (57) in a state where the remaining amount detection device (57) detects a decrease in the remaining amount of the granular material in the granular material storage unit (60) and the notification member (58) is activated. 59) is continuously operated for a predetermined time or longer (eg, 5 seconds), the control device (100) causes the rotation detection device (45) to operate at the first predetermined rotation speed (eg, 10 to 10) of the feeding device (61). 2. The granular material supply device according to claim 1, wherein the granular material supply device has a control configuration in which the notification member is not operated even if a rotation of 20 rotations or more is detected.

請求項３に係る発明は、報知停止装置（５９）を所定時間（例：５秒）以上連続操作していても、回転検知装置（４５）が該繰出し装置（６１）の第２の所定回転数（例：５０回転）以上を検知すると、制御装置（１００）は報知部材（５８）を再度作動させる制御構成を有することを特徴とする請求項２記載の粒状体供給装置である。 According to the third aspect of the present invention, even if the notification stop device (59) is continuously operated for a predetermined time (for example, 5 seconds) or more, the rotation detection device (45) performs the second predetermined rotation of the feeding device (61). 3. The granular material supply device according to claim 2, wherein the control device (100) has a control configuration that activates the notification member (58) again when a number (eg, 50 rotations) or more is detected.

請求項４に係る発明は、制御装置（１００）が、粒状体貯留部（６０）から繰出し装置（６１）に移動する粒状体の量を調節する繰出しアーム（４７）と、該繰出しアーム（４７）に設けた繰出しポテンショメータ（４７ａ）と、該繰出しポテンショメータ（４７ａ）の検出角度が基準値（０度）より大きくて、繰出し量「多」の場合（例：基準値（０度）＋（５〜３０度））には、第２の所定回転数を減少（例えば５０回転から４０回転に減少させ、また走行距離も３０ｍから２０ｍに）させ、また、繰出しポテンショメータ（４７ａ）の検出角度が基準値（０度）より小さくて、肥料繰出し量「少」の場合（例：基準値（０度）−（５〜３０度））には、第２の所定回転数を増加（例えば、５０回転から６０回転に増加させ、走行距離も３０ｍから４０ｍに増加）させる制御構成を有することを特徴とする請求項３記載の苗移植機である。 In the invention according to claim 4, the control device (100) adjusts the amount of the granular material moving from the granular material storage unit (60) to the feeding device (61), and the feeding arm (47). ) And a feed potentiometer (47a) with a detection angle of the feed potentiometer (47a) larger than a reference value (0 degree) and a feed amount “large” (example: reference value (0 degree) + (5 To 30 degrees)), the second predetermined rotational speed is reduced (for example, reduced from 50 to 40, and the travel distance is also changed from 30 m to 20 m), and the detection angle of the feeding potentiometer (47a) is the reference. If it is smaller than the value (0 degree) and the fertilizer feed amount is “low” (example: reference value (0 degree) − (5 to 30 degree)), the second predetermined rotational speed is increased (for example, 50 revolutions). Increased from 60 to 60, and the mileage is A seedling transplantation machine according to claim 3, wherein a 40m to increase) is controllably composed 0 m.

請求項５に係る発明は、残量検知装置（５７）が、粉粒体が予め設定された前記所定かさ高さ（例：ホッパ（６０）の底部から１０ｃｍ）未満であることを検知すると点灯状態となる表示ランプ（９１）と、報知停止装置（５９）を操作すると、制御装置（１００）は、表示ランプ（９１）を所定時間（数分〜残量検知装置（５７）が非検知になるまでの時間）点滅させる制御構成としたことを特徴とする請求項１から４のいずれか１項に記載の粒状体供給装置である。 The invention according to claim 5 is lit when the remaining amount detecting device (57) detects that the granular material is less than the predetermined bulk height (for example, 10 cm from the bottom of the hopper (60)). When the display lamp (91) that enters the state and the notification stop device (59) are operated, the control device (100) causes the display lamp (91) to remain undetected for a predetermined time (several minutes to the remaining amount detection device (57)). The granular material supply apparatus according to any one of claims 1 to 4, wherein the control structure is configured to blink).

請求項６に係る発明は、繰出し装置（６１）から放出される粒状体を移動させる風を発生させる起風装置（ブロワ）（６７）と、該起風装置（６７）の風を案内する送風管（９２）を粒状体貯留部（６０）内に配置し、該送風管（９２）に複数の噴出孔（９２ａ）を形成したことを特徴とする請求項１から５のいずれか１項に記載の粒状体供給装置である。 The invention according to claim 6 is a wind generator (blower) (67) for generating a wind for moving the granular material discharged from the feeding device (61), and an air flow for guiding the wind of the wind generator (67). The pipe (92) is disposed in the granular material reservoir (60), and a plurality of ejection holes (92a) are formed in the blower pipe (92). It is a granular material supply apparatus of description.

請求項７に係る発明は、送風管（９２）の外周に複数の排風孔（９３ａ）を設けた外周回転軸（９３）と、該外周回転軸（９３）を駆動させる駆動モータ（９４）を設けたことを特徴とする請求項６記載の粒状体供給装置である。 The invention according to claim 7 is the outer peripheral rotating shaft (93) provided with a plurality of air exhaust holes (93a) on the outer periphery of the blower pipe (92), and the drive motor (94) for driving the outer peripheral rotating shaft (93). The granular material supply apparatus according to claim 6, wherein:

請求項８に係る発明は、駆動モータ（９４）を起風装置（６７）の起風モータ（６６）とは反対側に配置し、外周回転軸（９３）の排風孔（９３ａ）は粒状体貯留部（６０）の底部側に設けられる傾斜部（６０ｂ）の上方に配置され、粒状体貯留部（６０）の中央部の底部の上方に外周回転軸（９３）に軸着する拡散羽根（９５）を設けたことを特徴とする請求項７記載の粒状体供給装置である。 In the invention according to claim 8, the drive motor (94) is disposed on the side opposite to the wind motor (66) of the wind generator (67), and the exhaust hole (93a) of the outer peripheral rotating shaft (93) is granular. A diffusion blade disposed above the inclined portion (60b) provided on the bottom side of the body reservoir (60) and pivotally attached to the outer peripheral rotation shaft (93) above the bottom of the central portion of the granule reservoir (60) The granular material supply apparatus according to claim 7, wherein (95) is provided.

請求項１記載の発明によれば、報知停止装置５９で報知部材５８の作動を停止させていても、繰出し装置６１が所定回転以上回転した、即ち圃場などで肥料などの粒状体供給作業が一定距離以上続いた場合には再び報知部材５８を作動させる構成としたことにより、残量検知装置５７が粒状体の減少を検知したことを作業者に再度通知することができるので、作業者が圃場端に接近した際に粒状体の補充作業を忘れることが防止される。
これにより、圃場内での粒状体貯留部６０の粒状体切れを起こすことを防止できるので、粒状体散布作業途中で圃場端に移動する必要が無くなり、作業能率が向上する。 According to the first aspect of the present invention, even if the operation of the notification member 58 is stopped by the notification stop device 59, the feeding device 61 has rotated more than a predetermined rotation, that is, the supply work of the granular material such as fertilizer is constant in the field or the like. Since the configuration in which the notification member 58 is activated again when the distance exceeds the distance, the operator can be notified again that the remaining amount detection device 57 has detected the decrease in the granular material. When the end is approached, forgetting to replenish the granular material is prevented.
As a result, it is possible to prevent the granular material storage unit 60 from being broken in the field, so that it is not necessary to move to the end of the field during the granular material spraying operation, and the work efficiency is improved.

請求項２記載の発明によれば、報知停止装置５９を所定時間以上連続して操作すると、回転検知装置４５が該繰出し装置６１の第１の所定回転数以上の回転数を検知しても報知部材５８が作動しなくなるため、作業者は報知部材５８が作動するたびに報知停止装置５９を操作する必要が無くなり、作業能率が向上すると共に、余計なストレスがかからず、作業者の負担が軽減される。 According to the second aspect of the present invention, when the notification stop device 59 is continuously operated for a predetermined time or longer, the notification is made even if the rotation detection device 45 detects the rotation number of the feeding device 61 equal to or higher than the first predetermined rotation number. Since the member 58 is not operated, it is not necessary for the operator to operate the notification stop device 59 every time the notification member 58 is operated, the work efficiency is improved, no extra stress is applied, and the burden on the operator is reduced. It is reduced.

請求項３記載の発明によれば、報知停止装置５９を所定時間以上連続して操作していても、回転検知装置４５が該繰出し装置６１の第２の所定回転数以上の回転数を検知すると再度報知部材５８が作動する構成としたことにより、作業者が煩わしく思わない程度の周期で粒状体の減少を報知することができるので、粒状体の補充を圃場端で忘れずに行え、作業能率が向上する。また、余計なストレスがかからず、作業者の負担が軽減される。 According to the third aspect of the present invention, even when the notification stop device 59 is continuously operated for a predetermined time or more, the rotation detection device 45 detects the rotation number of the feeding device 61 equal to or higher than the second predetermined rotation number. By adopting a configuration in which the notification member 58 is activated again, it is possible to notify the decrease of the granular material at a period that is not annoying by the operator, so it is possible to replenish the granular material without forgetting it at the field end, and work efficiency Will improve. Moreover, unnecessary stress is not applied and the burden on the operator is reduced.

請求項４記載の発明によれば、繰出しポテンショメータ４７ａが繰出しアーム４７の傾斜角度から繰出し量「多」となる角度を検出した場合、繰出し装置６１の第２の所定回転数を減少させる構成としたことにより、粒状体の消費速度が多いときは短いサイクルで粒状体の減少を報知することができるので、作業者に圃場端での粒状体補充作業を促しやすく、作業能率が向上する。
また、繰出しポテンショメータ４７ａが繰出しアーム４７の傾斜角度から繰出し量「少」となる傾斜角度を検出した場合、繰出し装置６１の第２の所定回転数を増加させる構成としたことにより、粒状体の消費速度が少ないときは長いサイクルで粒状体の減少を報知することができるので、過度の報知を行うことがなく、作業者は粒状体供給作業に集中でき、作業能率が従来より向上する。 According to the fourth aspect of the present invention, when the feeding potentiometer 47a detects an angle at which the feeding amount is “large” from the inclination angle of the feeding arm 47, the second predetermined rotational speed of the feeding device 61 is decreased. As a result, when the consumption speed of the granular material is high, it is possible to notify the decrease of the granular material in a short cycle, so that it is easy to prompt the operator to replenish the granular material at the field end, and the work efficiency is improved.
Further, when the feeding potentiometer 47a detects an inclination angle at which the feeding amount is “small” from the tilting angle of the feeding arm 47, the second predetermined rotation speed of the feeding device 61 is increased, so that the consumption of granular materials is increased. When the speed is low, the reduction of the granular material can be notified in a long cycle, so that excessive notification is not performed, the operator can concentrate on the granular material supply work, and the work efficiency is improved as compared with the conventional method.

請求項５記載の発明によれば、報知停止装置５９を操作すると、粒状体の残量低下を報知する表示ランプ９１を所定時間点滅させることにより、視覚的に粒状体の残量低下を報知することができるので、作業者が圃場端での粒状体の補充作業を忘れにくくなる。 According to the fifth aspect of the present invention, when the notification stop device 59 is operated, the display lamp 91 that notifies the decrease in the remaining amount of the granular material blinks for a predetermined time, thereby visually informing the decrease in the remaining amount of the granular material. Therefore, it becomes difficult for an operator to forget to replenish the granular material at the field end.

請求項６記載の発明によれば、起風装置６７の風を案内する送風管９２を粒状体貯留部６０内に配置し、送風管９２に複数の噴出孔９２ａを形成したことにより、粒状体貯留部６０内に風の流れを発生させて粒状体を掻き混ぜることができるので、粒状体同士が自重や水分等によって塊になることが防止され、粒状体の繰出し量が設定通りとなるため、計画的な作業が行える。
また、粒状体が塊とならないことにより、粒状体が一または複数個所に偏って減少することが防止されるので、一部の残量検知装置５７だけが作動することが防止され、粒状体貯留部６０全体から均一に粒状体が減少、或いは使い切られたときに補充作業を行うことができ、補充作業の頻度が減って、作業能率が向上する。 According to the sixth aspect of the present invention, the blower pipe 92 that guides the wind of the wind generating device 67 is disposed in the granular material storage unit 60, and the plurality of ejection holes 92 a are formed in the blower pipe 92. Since the flow of wind can be generated in the storage unit 60 and the granular material can be stirred, the granular material is prevented from being agglomerated by its own weight or moisture, and the amount of delivery of the granular material is as set. Can perform planned work.
Further, since the granular material is not agglomerated, it is prevented that the granular material is deviated to one or a plurality of places, so that only a part of the remaining amount detecting device 57 is prevented from operating, and the granular material is stored. The replenishment work can be performed when the granular material is uniformly reduced or used up from the entire unit 60, the frequency of the replenishment work is reduced, and the work efficiency is improved.

請求項７記載の発明によれば、送風管９２の外周に複数の排風孔９３ａを設けた外周回転軸９３を設け、この外周回転軸９３を駆動モータ９４で回転させることにより、空気の流れに動きが生じるため、同じ部分の粒状体だけが掻き混ぜられることを防止できるので、粒状体がいっそう塊になりにくく、計画的な作業の遂行が可能となる。
また、粒状体が一または複数個所に偏って減少することが防止されるので、一部の残量検知装置５７だけが作動することが防止され、粒状体貯留部６０全体から均一に粒状体が減少、或いは使い切られたときに補充作業を行うことができ、補充作業の頻度が減って、作業能率が従来より向上する。
さらに、塊になった粒状体が残量検知装置５７の前から動かず、実際の残量は残り少ないにもかかわらず、残量検知装置５７を非検知状態にすることを防止できるので、作業者が粒状体切れに気付かずに作業を継続することが防止され、作業者が手作業で粒状体の供給を行う必要が無くなる。 According to the seventh aspect of the present invention, the outer peripheral rotating shaft 93 provided with a plurality of air exhaust holes 93 a is provided on the outer periphery of the blower tube 92, and the outer peripheral rotating shaft 93 is rotated by the drive motor 94, thereby allowing air flow. Therefore, it is possible to prevent only the granule in the same part from being agitated, so that the granule is less likely to be agglomerated and the planned work can be performed.
In addition, since the granular material is prevented from being reduced in one or more places, only a part of the remaining amount detecting device 57 is prevented from operating, and the granular material is uniformly distributed from the entire granular material storage unit 60. Replenishment work can be performed when it is reduced or used up, the frequency of replenishment work is reduced, and the work efficiency is improved as compared with the prior art.
Furthermore, the granular material that has become a lump does not move from the front of the remaining amount detection device 57, and it is possible to prevent the remaining amount detection device 57 from being in a non-detection state even though the actual remaining amount is small. Therefore, it is possible to prevent the worker from continuing the work without noticing the breakage of the granular material, and the operator need not manually supply the granular material.

請求項８記載の発明によれば、駆動モータ９４をブロア６７の起風モータ６６とは反対側に配置したことにより、粒状体供給装置（苗移植機）の左右幅をコンパクトに抑えることができるので、旋回時等に粒状体供給装置（苗移植機）の左右幅が壁等に接触することが防止され、耐久性が向上する。
また、排風孔９３ａを粒状体貯留部６０内の傾斜部６０ｂの上方に形成したことにより、塊が発生し易い箇所の粒状体を掻き混ぜることができるので、粒状体がいっそう塊になりにくく、計画的な作業の遂行が可能となる。
さらに、外周回転軸９３に拡散羽根９５を軸着し、この拡散羽根９５を粒状体貯留部６０の中央部の底部の上方に配置することにより、繰り出される直前の粒状体を掻き混ぜることができるので、繰出し部に所定量の粒状体が供給され、供給ムラが生じることが防止される。 According to the eighth aspect of the present invention, the drive motor 94 is disposed on the side of the blower 67 opposite to the wind-up motor 66, so that the left-right width of the granular material supply device (seedling transplanter) can be reduced in a compact manner. Therefore, the left and right width of the granular material supply device (seedling transplanter) is prevented from coming into contact with a wall or the like during turning, and durability is improved.
Further, since the exhaust holes 93a are formed above the inclined portion 60b in the granular material storage unit 60, it is possible to agitate the granular material where the mass is likely to be generated, so that the granular material is less likely to become a mass. The planned work can be performed.
Further, by attaching the diffusion blade 95 to the outer peripheral rotating shaft 93 and disposing the diffusion blade 95 above the bottom of the central portion of the granular material storage unit 60, the granular material immediately before being fed can be agitated. Therefore, a predetermined amount of granular material is supplied to the feeding portion, and supply unevenness is prevented from occurring.

本発明の一実施形態の乗用型田植機の側面図である。It is a side view of the riding type rice transplanter of one embodiment of the present invention. 図１の乗用型田植機の平面図である。It is a top view of the riding type rice transplanter of FIG. 図１の施肥装置の肥料回収管部分を省略した背面図（図３（ａ）及び伝動関係を省略した背面図（図３（ｂ））である。It is the rear view (FIG.3 (a) and the rear view (FIG.3 (b)) which abbreviate | omitted transmission relationship) which abbreviate | omitted the fertilizer collection pipe | tube part of the fertilizer application of FIG. 図１の施肥装置の平面図である。It is a top view of the fertilizer application of FIG. 図１の施肥装置の一断面の側面断面図である。It is side surface sectional drawing of the 1 cross section of the fertilizer application of FIG. 図１の施肥装置の粉粒体繰出部の側面断面図である。It is side surface sectional drawing of the granular material supply part of the fertilizer application of FIG. 図６のＳ−Ｓ断面図である。It is SS sectional drawing of FIG. 図１の施肥装置に係わる主な制御ブロック図である。It is a main control block diagram concerning the fertilizer application of FIG. 図１の施肥装置の機構を説明する図である。It is a figure explaining the mechanism of the fertilizer application of FIG. 図１の施肥装置の粉粒体繰出部の平面図（図１０（ａ））と背面図（図１０（ｂ））である。It is a top view (Drawing 10 (a)) and a rear view (Drawing 10 (b)) of a granular material extension part of a fertilizer application of Drawing 1. 図１の施肥装置の他の実施例の粉粒体繰出部の平面図（図１１（ａ））と背面側から見た内部構造図（図１１（ｂ））である。It is a top view (Drawing 11 (a)) of a granular material extension part of other examples of a fertilizer application of Drawing 1, and an internal structure figure (Drawing 11 (b)) seen from the back side.

以下、図面に基づき、本発明の好ましい実施の形態について説明する。
図１及び図２は本発明の苗移植機の典型例である粉粒体繰出し装置として施肥装置を装着した乗用型田植機の側面図と平面図である。この施肥装置付き乗用型田植機１は、走行車体２の後側に昇降リンク装置３を介して苗植付部４が昇降可能に装着され、走行車体２の後部上側に施肥装置５の本体部分が設けられている。搭乗オペレータが乗用型田植機の前進方向に向かって左右方向をそれぞれ左、右といい、前進方向と後進方向をそれぞれ前、後という。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 and FIG. 2 are a side view and a plan view of a riding type rice transplanter equipped with a fertilizer application device as a granular material feeding device which is a typical example of the seedling transplanter of the present invention. In this riding type rice transplanter 1 with a fertilizer application, a seedling planting portion 4 is mounted on the rear side of the traveling vehicle body 2 via an elevating link device 3 so that the seedling planting portion 4 can be moved up and down. Is provided. The boarding operator refers to the left and right directions in the forward direction of the riding type rice transplanter as left and right, respectively, and the forward direction and the reverse direction are referred to as forward and backward, respectively.

走行車体２は、駆動輪である左右一対の前輪１０，１０及び左右一対の後輪１１，１１（走行装置）を備えた四輪駆動車両であって、機体の前部にミッションケース１２が配置され、そのミッションケース１２の左右側方に前輪ファイナルケース１３，１３が設けられ、該左右前輪ファイナルケース１３，１３の操向方向を変更可能な各々の前輪支持部から外向きに突出する左右前輪車軸に左右前輪１０，１０が各々取り付けられている。また、ミッションケース１２の背面部にメインフレーム１５の前端部が固着されており、そのメインフレーム１５の後端左右中央部に前後水平に設けた後輪ローリング軸を支点にして後輪ギヤケース１８，１８がローリング自在に支持され、その後輪ギヤケース１８，１８から外向きに突出する後輪車軸に後輪１１，１１が取り付けられている。 The traveling vehicle body 2 is a four-wheel drive vehicle including a pair of left and right front wheels 10 and 10 and a pair of left and right rear wheels 11 and 11 (traveling devices) as drive wheels, and a transmission case 12 is disposed at the front of the airframe. Front wheel final cases 13, 13 are provided on the left and right sides of the transmission case 12, and the left and right front wheels project outward from the respective front wheel support portions capable of changing the steering direction of the left and right front wheel final cases 13, 13. Left and right front wheels 10, 10 are respectively attached to the axles. Further, the front end portion of the main frame 15 is fixed to the rear portion of the transmission case 12, and a rear wheel gear case 18, with a rear wheel rolling shaft provided horizontally in the front and rear sides at the rear left and right center of the main frame 15 as a fulcrum. The rear wheels 11 and 11 are attached to a rear wheel axle that is supported in a freely rolling manner and projects outwardly from the rear wheel gear cases 18 and 18.

エンジン２０はメインフレーム１５の上に搭載されており、該エンジン２０の回転動力が、ベルト伝動装置２１及び油圧無段変速装置（ＨＳＴ）２３を介してミッションケース１２に伝達される。ミッションケース１２に伝達された回転動力は、該ケース１２内のトランスミッションにより変速された後、走行動力と外部取出動力に分離して取り出される。そして、走行動力は、一部が前輪ファイナルケース１３，１３に伝達されて前輪１０，１０を駆動すると共に、残りが後輪ギヤケース１８，１８に伝達されて後輪１１，１１を駆動する。また、外部取出動力は、走行車体２の後部に設けた植付クラッチケース２５に伝達され、それから植付伝動軸２６によって苗植付部４へ伝動されるとともに、施肥伝動機構２８によって施肥装置５へ伝動される。 The engine 20 is mounted on the main frame 15, and the rotational power of the engine 20 is transmitted to the transmission case 12 via a belt transmission device 21 and a hydraulic continuously variable transmission (HST) 23. The rotational power transmitted to the mission case 12 is shifted by the transmission in the case 12 and then separated into traveling power and external power to be extracted. A part of the traveling power is transmitted to the front wheel final cases 13 and 13 to drive the front wheels 10 and 10, and the rest is transmitted to the rear wheel gear cases 18 and 18 to drive the rear wheels 11 and 11. Further, the external take-out power is transmitted to a planting clutch case 25 provided at the rear part of the traveling vehicle body 2, and then transmitted to the seedling planting unit 4 by the planting transmission shaft 26, and also the fertilizer application device 5 by the fertilization transmission mechanism 28. Is transmitted to.

エンジン２０の上部はエンジンカバー３０で覆われており、その上に座席３１が設置されている。座席３１の前方には各種操作機構を内蔵するフロントカバー３２があり、その上方に前輪１０，１０を操向操作するハンドル３４が設けられており、この領域を操縦部３３とする。エンジンカバー３０及びフロントカバー３２の下端左右両側は水平状のフロアステップ３５になっている。フロアステップ３５は一部格子状になっており（図２参照）、該ステップ３５を歩く作業者の靴についた泥が圃場に落下するようになっている。フロアステップ３５上の後部は、後輪フェンダを兼ねるリヤステップ３６となっている。 The upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is installed thereon. A front cover 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheels 10 and 10 is provided above the front cover 32. The engine cover 30 and the front cover 32 have horizontal floor steps 35 on the left and right sides of the lower end. The floor step 35 is partly grid-shaped (see FIG. 2), and mud on the shoe of the worker walking through the step 35 falls on the field. The rear part on the floor step 35 is a rear step 36 that also serves as a rear wheel fender.

昇降リンク装置３は平行リンク機構であって、１本の上リンク４０と左右一対の下リンク４１，４１を備えている。これらリンク４０，４１，４１は、その基部側がメインフレーム１５の後端部に立設した背面視門形のリンクベースフレーム４２に回動自在に取り付けられ、その先端側に縦リンク４３が連結されている。そして、縦リンク４３の下端部に苗植付部４に回転自在に支承された連結軸４４が挿入連結され、連結軸４４を中心として苗植付部４がローリング自在に連結されている。 The elevating link device 3 is a parallel link mechanism, and includes a single upper link 40 and a pair of left and right lower links 41, 41. These links 40, 41, 41 are pivotally attached to a rear-view portal-shaped link base frame 42 erected on the rear end of the main frame 15, and a vertical link 43 is connected to the tip side thereof. ing. And the connecting shaft 44 rotatably supported by the seedling planting part 4 is inserted and connected to the lower end part of the vertical link 43, and the seedling planting part 4 is connected so as to be able to roll around the connecting shaft 44.

メインフレーム１５に固着した支持部材（図示せず）と上リンク４０に一体形成したスイングアーム（図示せず）の先端部との間に昇降油圧式シリンダ４６が設けられており、該シリンダ４６を油圧で伸縮させることにより、上リンク４０が上下に回動し、苗植付部４がほぼ一定姿勢のまま昇降する。
苗植付部４は６条植の構成で、フレームを兼ねる伝動ケース５０、マット苗を載せて左右往復動し苗を一株分ずつ各条の苗取出口５１ａ，…に供給するとともに横一列分の苗を全て苗取出口５１ａ，…に供給すると苗送りベルト５１ｂ，…により苗を下方に移送する苗載せ台５１、苗取出口５１ａ，…に供給された苗を圃場に植付ける苗植付装置５２，…、次行程における機体進路を表土面に線引きする左右一対の線引きマーカ７５（図１）等を備えている。 An elevating hydraulic cylinder 46 is provided between a support member (not shown) fixed to the main frame 15 and the tip of a swing arm (not shown) formed integrally with the upper link 40. By expanding and contracting with hydraulic pressure, the upper link 40 is rotated up and down, and the seedling planting portion 4 is lifted and lowered with a substantially constant posture.
The seedling planting section 4 has a six-row planting structure, a transmission case 50 that also serves as a frame, a mat seedling, and a left and right reciprocating motion to supply seedlings one by one to the seedling outlets 51a,. When all the seedlings are supplied to the seedling outlet 51a, ..., the seedling feeding base 51b, ..., the seedling stage 51 for transferring the seedling downward, the seedling planting planting the seedling supplied to the seedling outlet 51a, ... in the field Attaching device 52,..., A pair of left and right drawing markers 75 (FIG. 1) and the like for drawing the aircraft path in the next stroke to the topsoil surface.

苗植付部４の下部には中央にセンターフロート５５、その左右両側にサイドフロート５６，５６がそれぞれ設けられている。これらフロート５５，５６，５６を圃場の泥面に接地させた状態で機体を進行させると、フロート５５，５６，５６が泥面を整地しつつ滑走し、その整地跡に苗植付装置５２，…により苗が植え付けられる。各フロート５５，５６，５６は圃場表土面の凹凸に応じて前端側が上下動するように回動自在に取り付けられており、植付作業時にはセンターフロート５５の前部の上下動が迎角制御センサ（図示せず）により検出され、その検出結果に応じ前記昇降油圧式シリンダ４６を制御する油圧バルブ（図示せず）を切り替えて苗植付部４を昇降させることにより、苗の植付深さを常に一定に維持する。 In the lower part of the seedling planting part 4, a center float 55 is provided in the center, and side floats 56, 56 are provided on the left and right sides thereof. When the aircraft is advanced with these floats 55, 56, 56 in contact with the mud surface of the field, the floats 55, 56, 56 slide while leveling the mud surface, and the seedling planting device 52, ... to plant seedlings. Each of the floats 55, 56, and 56 is rotatably mounted so that the front end side moves up and down in accordance with the unevenness of the field topsoil surface, and the vertical movement of the front part of the center float 55 is an angle-of-attack control sensor during planting work. The planting depth of the seedling is detected by switching a hydraulic valve (not shown) that controls the lifting hydraulic cylinder 46 according to the detection result and raising and lowering the seedling planting unit 4 according to the detection result. Is always kept constant.

苗植付部４には整地装置の一例であるロータ２７（第１ロータ２７ａと第２ロータ２７ｂの組み合わせを単にロータ２７ということがある）が取り付けられている。また、苗載せ台５１は苗植付部４の全体を支持する左右方向と上下方向に幅一杯の矩形の支持枠体６５の支持ローラ６５ａをレールとして左右方向にスライドする構成である。
また、走行車体２の前部左右両側には、補給用の苗を載せておく一対の予備苗載せ台３８，３８が機体の前後に張り出す位置と上下に並んだ位置とに回動可能に設けられている。予備苗載せ台３８は走行車体２のフロアステップ３５の下部に基部側を配置した支持機枠４９に支持され、移動リンク部材３９ａ，３９ｂ，３９ｃを介してそれぞれ上下三段に構成され、第１予備苗載せ台３８ａ、第２予備苗載せ台３８ｂ及び第３予備苗載せ台３８ｃからなっている。 The seedling planting unit 4 is provided with a rotor 27 (an example of a combination of the first rotor 27a and the second rotor 27b may be simply referred to as the rotor 27) as an example of a leveling device. The seedling platform 51 is configured to slide in the left-right direction using a support roller 65a of a rectangular support frame body 65 that is a full width in the left-right direction and the up-down direction that supports the entire seedling planting unit 4 as a rail.
In addition, on the left and right sides of the front part of the traveling vehicle body 2, a pair of spare seedling platforms 38, 38 on which replenishment seedlings are placed can be pivoted to a position where they protrude from the front and back of the machine body and a position where they are aligned vertically. Is provided. The preliminary seedling table 38 is supported by a support machine frame 49 having a base side disposed below the floor step 35 of the traveling vehicle body 2, and is configured in three upper and lower stages via moving link members 39a, 39b, and 39c, respectively. It comprises a preliminary seedling stage 38a, a second preliminary seedling stage 38b, and a third preliminary seedling stage 38c.

第１，第２，第３予備苗載せ台３８ａ，３８ｂ，３８ｃが前後方向に並ぶ展開状態と各予備苗載せ台３８ａ，３８ｂ，３８ｃが上下方向に並ぶ積層状態とに切り替えられるが、この切り替えは、電動モータ（図示せず）で駆動する切替駆動装置３７とによって行うことができる。 The first, second, and third preliminary seedling platforms 38a, 38b, and 38c can be switched between an unfolded state in which they are aligned in the front-rear direction and a stacked state in which the preliminary seedling platforms 38a, 38b, and 38c are aligned in the vertical direction. Can be performed by a switching drive device 37 driven by an electric motor (not shown).

施肥装置５は、肥料ホッパ６０に貯留されている粒状の肥料を繰出部６１，…によって一定量ずつ繰り出し、その肥料を施肥ホース６２，…でフロート５５，５６，５６の左右両側に取り付けた施肥ガイド６３，…まで導き、施肥ガイド６３，…の前側に設けた作溝体６４（図１），…によって苗植付条の側部近傍に形成される施肥構内に落とし込むようになっている。ブロア用電動モータ６６で駆動するブロア６７で発生させたエアが、左右方向に長いエアチャンバ６８を経由して施肥ホース６２，…に吹き込まれ、施肥ホース６２，…内の肥料を風圧で強制的に搬送するようになっている。 The fertilizer applicator 5 feeds the granular fertilizer stored in the fertilizer hopper 60 by a certain amount by the feeding portions 61,... Are guided to the guides 63, and are dropped into a fertilization structure formed in the vicinity of the side portion of the seedling planting line by a grooved body 64 (FIG. 1) provided on the front side of the fertilization guides 63,. The air generated by the blower 67 driven by the blower electric motor 66 is blown into the fertilizer hoses 62,... Via the air chamber 68 that is long in the left-right direction, and the fertilizer in the fertilizer hoses 62,. It is designed to be transported.

以下、図３〜図１１に示す施肥装置本体部の各部の構成について説明する。
肥料ホッパ６０は各条共用で、上部に開閉可能な蓋６０ａが取り付けられている。肥料ホッパ６０の下部は施肥条数分に分岐して漏斗状になっており、その下部が繰出部６１，…の上端に接続されている。肥料ホッパ６０は、左右方向に長い施肥フレーム７０に支持された左右２箇所の回動アーム７１に取り付けられていて、この回動アーム７１の下端部を支点に後方に回動させて繰出部６１から分離させられるようになっている。回動アーム７１は外側から１条目の繰出部と２条目の繰出部との間に配置されている（左右対称位置に２つ設けられている）。肥料ホッパ６０の下部を肥料繰出部６１，…の上端に接続した通常位置では、係止具７２により肥料ホッパ６０を固定しておく。 Hereafter, the structure of each part of the fertilizer applicator main-body part shown in FIGS. 3-11 is demonstrated.
The fertilizer hopper 60 is shared by each strip, and a lid 60a that can be opened and closed is attached to the top. The lower part of the fertilizer hopper 60 is branched into a number of fertilizer strips and has a funnel shape, and the lower part is connected to the upper ends of the feeding parts 61. The fertilizer hopper 60 is attached to two left and right rotating arms 71 supported by a fertilization frame 70 that is long in the left-right direction. The feeding portion 61 is rotated rearward with the lower end of the rotating arm 71 as a fulcrum. It can be separated from. The rotating arm 71 is disposed between the first feeding portion and the second feeding portion from the outside (two are provided at symmetrical positions). At the normal position where the lower part of the fertilizer hopper 60 is connected to the upper ends of the fertilizer feeding parts 61,...

繰出部６１は、肥料ホッパ６０内の肥料を下方に繰り出す２個の繰出ロール７３Ａ，７３Ｂを内蔵している。これらの繰出ロール７３Ａ，７３Ｂは、外周部に溝状の凹部７４、…が形成された回転体で、左右方向に設けた共通の繰出軸７５の角軸部７５ａ（図示例は四角軸）にそれぞれ一体回転するように嵌合している。繰出ロール７３Ａ，７３Ｂが図６の矢印方向に回転することにより、肥料ホッパ６０から落下供給される肥料が凹部７４に収容されて下方に繰り出される。両繰出ロール７３Ａ，７３Ｂにより繰り出された肥料は、下端の吐出口６１ｘから吐出される。 The feeding unit 61 includes two feeding rolls 73A and 73B that feed the fertilizer in the fertilizer hopper 60 downward. These feeding rolls 73A and 73B are rotating bodies having groove-like recesses 74 formed on the outer peripheral portion thereof, and are provided on a corner shaft portion 75a (a square shaft in the illustrated example) of a common feeding shaft 75 provided in the left-right direction. They are fitted so as to rotate together. As the feed rolls 73A and 73B rotate in the direction of the arrow in FIG. 6, the fertilizer dropped and supplied from the fertilizer hopper 60 is accommodated in the recess 74 and fed downward. The fertilizer paid out by both the feeding rolls 73A and 73B is discharged from the discharge port 61x at the lower end.

図示例の繰出ロール７３Ａ，７３Ｂの凹部の数は６個であり、両者の凹部の位相が異ならせてある。このため、両繰出ロール７３Ａ，７３Ｂの凹部が交互に肥料を繰り出すこととなり、吐出口６１ｘから吐出される肥料の量が時間的に均等化されている。いずれかの繰出ロール７３Ａ又は７３Ｂを繰出軸７５から外して位相を適当に変更して付け直すことにより、両繰出ロール７３Ａ，７３Ｂの凹部の位相を等しくすることもできる。これで、圃場に点状に肥料を散布する場合に適用可能となる。 The number of concave portions of the feeding rolls 73A and 73B in the illustrated example is six, and the phases of the concave portions are different from each other. For this reason, the concave portions of the feeding rolls 73A and 73B alternately feed the fertilizer, and the amount of the fertilizer discharged from the discharge port 61x is equalized in terms of time. By removing any one of the feeding rolls 73A or 73B from the feeding shaft 75 and changing the phase appropriately, the phases of the concave portions of the feeding rolls 73A and 73B can be made equal. This makes it possible to apply fertilizer to the field in the form of dots.

また、繰出部６１の内部には、凹部７４が下方に移動する側（前側）の繰出ロール７３の外周面に摺接するブラシ７６が着脱自在に設けられている。このブラシ７６によって繰出ロール７３Ａ，７３Ｂの凹部７４に肥料が摺り切り状態で収容され、繰出ロール７３Ａ、７３Ｂによる肥料繰出量が一定に保たれる。 In addition, a brush 76 slidably in contact with the outer peripheral surface of the feeding roll 73 on the side (front side) where the concave portion 74 moves downward is detachably provided inside the feeding portion 61. The fertilizer is housed in the recesses 74 of the feeding rolls 73A and 73B by the brush 76 in a state where the fertilizer is scraped off, and the amount of fertilizer fed by the feeding rolls 73A and 73B is kept constant.

さらに、ブラシ７６の上側には、繰出ロール７３Ａ，７３Ｂの上方に突出して肥料ホッパ６０から繰出部６１に肥料が落下供給されないようにする繰出停止シャッタ７７Ａ，７７Ｂ（図７）が設けられている。繰出停止シャッタ７７Ａ，７７Ｂは、繰出部ケース７８のスライド支持部７９（図６）にスライド自在に支持されていて、ケース外の前端部に形成された把手７７ａをつかんでスライドさせるようになっている。 Further, on the upper side of the brush 76, feeding stop shutters 77A and 77B (FIG. 7) are provided that protrude above the feeding rolls 73A and 73B and prevent the fertilizer from dropping and supplied from the fertilizer hopper 60 to the feeding portion 61. . The feeding stop shutters 77A and 77B are slidably supported by a slide support portion 79 (FIG. 6) of the feeding portion case 78, and are slid by grasping a handle 77a formed at the front end portion outside the case. Yes.

繰出部６１の吐出口６１ｘには、前後方向に連通する接続管８０（図３）が接続されている。そして、この接続管８０の後端部に施肥ホース６２（図５）が接続されている。施肥ホース６２の外周螺旋溝に施肥フレーム７０の下端部が係合しているので、施肥ホース６２が接続管８０から抜けにくい。一方、各条の接続管８０の前端部はエアチャンバ６８（図４、図５）の背面部に挿入連結されている。エアチャンバ６８の左端部はエア切替管８１を介してブロア６７（図３、図４）に接続されており、該ブロア６７からのエアがエアチャンバ６８を経由し接続管８０から施肥ホース６２に吹き込まれるようになっている。尚、ブロア６７は、図３、図４に仮想線で示すように、そのエア吐出口６７ａをエア切替管８１から外して機体内方に回動収納できる構成としている。 A connection pipe 80 (FIG. 3) communicating in the front-rear direction is connected to the discharge port 61 x of the feeding portion 61. A fertilizer hose 62 (FIG. 5) is connected to the rear end of the connection pipe 80. Since the lower end portion of the fertilizer frame 70 is engaged with the outer peripheral spiral groove of the fertilizer hose 62, the fertilizer hose 62 is difficult to come off from the connection pipe 80. On the other hand, the front end portion of each connecting pipe 80 is inserted and connected to the back surface portion of the air chamber 68 (FIGS. 4 and 5). The left end of the air chamber 68 is connected to a blower 67 (FIGS. 3 and 4) via an air switching pipe 81, and the air from the blower 67 passes from the connection pipe 80 to the fertilizer hose 62 via the air chamber 68. It comes to be blown. 3 and 4, the blower 67 is configured such that the air discharge port 67a can be removed from the air switching pipe 81 and rotated and stored in the body.

エアチャンバ６８は、接続管８０が取り付けられたゴム管６８ａと、中間部分の樹脂管６８ｂとを交互に繋ぎ合わせて構成されている。この構成とすると、エアチャンバ６８を簡単に分解、組み立てできるので、繰出部６１を一体的に取り外してのメンテナンスが容易である。ゴム管６８ａの長さを一対の繰出部の間隔よりも長くしておくと、樹脂管６８ｂからゴム管６８ａを抜きやすい。 The air chamber 68 is configured by alternately connecting a rubber pipe 68a to which a connecting pipe 80 is attached and a resin pipe 68b at an intermediate portion. With this configuration, the air chamber 68 can be easily disassembled and assembled, so that the maintenance with the feeding portion 61 removed as a whole is easy. If the length of the rubber tube 68a is made longer than the distance between the pair of feeding portions, the rubber tube 68a can be easily removed from the resin tube 68b.

また、繰出部ケース７８の背面部には、肥料ホッパ６０内の肥料を取り出すための肥料排出口８３（図６）が形成されている。この肥料排出口８３には、上端側を支点にして開閉自在な排出シャッタ８４が取り付けられている。各繰出部の肥料排出口８３は、繰出部６１の後方に設けた左右方向に長い肥料回収管８５に接続されている。肥料回収管８５の左端部は、前記エア切替管８１を介してブロア６７に接続されている。エア切替管８１は二股状の管であって、一方にエアチャンバ６８が接続され、他方に肥料回収管８５が接続されている。エア切替管８１にはエア切替部としてのエア切替シャッタ８６が設けられ、ブロア６７から吹き出されるエアをエアチャンバ６８側に供給する状態と肥料回収管８５側に供給する状態とに切り替えられようになっている。エア切替シャッタ８６はエアチャンバ６８と肥料回収管８５の間の前後中央部にあるので、両者へのエア供給が安定している。肥料回収管８５の右端部は肥料回収口８７になっている。なお肥料回収口８７の近傍に肥料回収レバー９０が回動自在に設けられている。 Further, a fertilizer discharge port 83 (FIG. 6) for taking out the fertilizer in the fertilizer hopper 60 is formed on the back surface portion of the feeding portion case 78. The fertilizer discharge port 83 is provided with a discharge shutter 84 that can be opened and closed with the upper end side as a fulcrum. The fertilizer discharge port 83 of each feeding part is connected to a fertilizer collecting pipe 85 that is provided behind the feeding part 61 and that is long in the left-right direction. The left end portion of the fertilizer collection pipe 85 is connected to the blower 67 through the air switching pipe 81. The air switching pipe 81 is a bifurcated pipe, and an air chamber 68 is connected to one side and a fertilizer collection pipe 85 is connected to the other side. The air switching pipe 81 is provided with an air switching shutter 86 as an air switching section, and can be switched between a state where air blown from the blower 67 is supplied to the air chamber 68 side and a state where air is supplied to the fertilizer recovery pipe 85 side. It has become. Since the air switching shutter 86 is located in the front and rear central portion between the air chamber 68 and the fertilizer collecting pipe 85, the air supply to both is stable. The right end portion of the fertilizer collection pipe 85 is a fertilizer collection port 87. A fertilizer recovery lever 90 is rotatably provided in the vicinity of the fertilizer recovery port 87.

肥料ポッパ６０に貯留された粒状体の肥料が予め設定された所定量以上か否かを検知する残量センサ５７（図９に図示）を肥料ポッパ６０内の側壁に設け、また繰出部６１の繰出ロール７３Ａ，７３Ｂの回転数を検出する繰出し回転センサ４５（図８にのみ図示）を繰出部６１の内部に設けている。そして該残量センサ５７が肥料ポッパ６０内の肥料が予め設定された適宜の所定かさ高さ（例：残量センサ５７を肥料ホッパ６０底部から約１０ｃｍのところに設けるので、高さ１０ｃｍを基準としている）未満であることを検知するとブザー等の報知部材５８を報知する制御構成を備えた制御装置１００を設けている。そのため肥料が前記所定量未満であると、残量センサ５７の検知によりブザー等の報知部材５８が作動するので、肥料を肥料ホッパ６０に追加供給することができる。 A residual amount sensor 57 (shown in FIG. 9) for detecting whether or not the granular fertilizer stored in the fertilizer popper 60 is greater than or equal to a predetermined amount set in advance is provided on the side wall in the fertilizer popper 60, and A feeding rotation sensor 45 (shown only in FIG. 8) that detects the number of rotations of the feeding rolls 73 </ b> A and 73 </ b> B is provided inside the feeding unit 61. The remaining amount sensor 57 has an appropriate predetermined bulk height in which the fertilizer in the fertilizer popper 60 is set in advance (for example, the remaining amount sensor 57 is provided at a position about 10 cm from the bottom of the fertilizer hopper 60, so that the height is 10 cm as a reference. The control device 100 is provided with a control configuration for notifying the notifying member 58 such as a buzzer when it is detected that it is less than. Therefore, if the fertilizer is less than the predetermined amount, the notification member 58 such as a buzzer is activated by detection of the remaining amount sensor 57, so that the fertilizer can be additionally supplied to the fertilizer hopper 60.

また、本実施例では、ブザー等の報知部材５８の他に該報知部材５８の作動を停止させる報知停止スイッチ５９を設けているので、ブザーなどの音が煩わしいと感じると報知停止スイッチ５９を作動させるブザーなどは停止できるので便利である。さらに繰出し回転センサ４５が繰出し装置６１の繰出ロール７３Ａ，７３Ｂの所定以上の回転数（例：１〜３回転；繰出ロール７３に刻む溝の数を「４」とすると、１回転で４回施肥される。これは、つまり４回植付が行われているので、遅すぎると未施肥区間が１０株以上出ることになる。苗の有無で判別できる未植付区間と違い、未施肥区間は肥料が溶け残っていないと見つけにくく、肥料不足を招くおそれがある。）を検出すると、再度、報知部材５８を作動させる制御構成を有する。 Further, in this embodiment, in addition to the notification member 58 such as a buzzer, a notification stop switch 59 for stopping the operation of the notification member 58 is provided. Therefore, when the sound of the buzzer is felt troublesome, the notification stop switch 59 is operated. The buzzer to be used is convenient because it can be stopped. Further, when the feeding rotation sensor 45 has a predetermined number of rotations of the feeding rolls 73A and 73B of the feeding device 61 (for example, 1 to 3 rotations; the number of grooves cut in the feeding roll 73 is “4”, fertilization is performed four times per rotation. This means that four times of planting has been carried out, so if it is too late, there will be more than 10 unfertilized sections.Undifferent from unplanted sections that can be identified by the presence or absence of seedlings, If the fertilizer is not left undissolved, it is difficult to find it, which may lead to a shortage of fertilizer.

こうして、報知停止スイッチ５９で報知部材５８の作動を停止させていても、繰出部６１の繰出ロール７３Ａ，７３Ｂが所定回転数以上回転した、即ち肥料供給作業が一定距離以上続いた場合には再び報知部材５８を作動させる構成としたことにより、残量センサ５７が肥料の減少を検知したことを作業者に再度通知することができるので、作業者が圃場端に接近した際に粒状体の補充作業を忘れることが防止され、圃場内で肥料切れを起こすことを防止できて、作業途中で圃場端に移動する必要が無くなり、作業能率が従来技術より向上する。 Thus, even if the operation of the notification member 58 is stopped by the notification stop switch 59, when the feeding rolls 73A and 73B of the feeding portion 61 have rotated more than a predetermined number of revolutions, that is, when the fertilizer supply operation has continued for a certain distance or longer, again. Since the notification member 58 is configured to operate, it is possible to notify the worker again that the remaining amount sensor 57 has detected the decrease in fertilizer, so that the replenishment of the granular material when the worker approaches the field end. Forgetting the work is prevented, it is possible to prevent the fertilizer from running out in the field, and it is not necessary to move to the field edge during the work, and the work efficiency is improved as compared with the prior art.

制御装置１００はブロア６７を作動させるブロア作動スイッチ１７を切にすると、前記報知停止スイッチ５９を自動的に切とする制御構成を備えているので、報知停止スイッチ５９を切り忘れていても報知部材５８が作動することがなく、大音量の報知音が作業者や圃場の近隣に不快感を与えることが防止される。 Since the control device 100 has a control structure in which the notification stop switch 59 is automatically turned off when the blower operation switch 17 that operates the blower 67 is turned off, the notification member 58 is provided even if the notification stop switch 59 is forgotten to be turned off. Is not activated, and it is possible to prevent an unpleasant sensation in the vicinity of the worker and the field by the loud sound notification sound.

また、肥料（粒状体）の残量センサ５７が肥料ホッパ６０内の肥料が所定かさ高さ（例：肥料ホッパ６０の底部から１０ｃｍ未満）になったことを検知すると報知部材５８が作動する。該報知部材５８の作動後、所定時間（例えば５分間）が経過すると、作業者に肥料切れの警告が行われたことを思い出させるために、同一の報知部材５８が再び作動する構成としている。 Further, when the fertilizer (granular body) remaining amount sensor 57 detects that the fertilizer in the fertilizer hopper 60 has reached a predetermined bulk height (eg, less than 10 cm from the bottom of the fertilizer hopper 60), the notification member 58 is activated. When a predetermined time (for example, 5 minutes) elapses after the operation of the notification member 58, the same notification member 58 is activated again in order to remind the worker that the fertilizer running out warning has been given.

通常肥料の補給は畦際で行うため、圃場端に到達するまでに所定時間が経過してしまい、報知部材５８が再度作動して報知音を鳴らすことがあり、これをその都度停止操作することは、作業者が煩わしさを覚えて労力を増大させると共に、他の操作の妨げになり、操作性の低下を招く。このため、畦際に作業車両が到達するまでの間に報知部材５８が作動することを防止するために、作業者は肥料ホッパ６０内に偏在した肥料を移動させて残量センサ５７が検知状態になることを防止しているが、この作業を行うために機体を停止させると作業能率が低下する。 Usually, since fertilizer is replenished at the shore, a predetermined time elapses until the end of the field is reached, and the notification member 58 may be activated again to generate a notification sound. The operator feels bothersome and increases the labor, while also hindering other operations, leading to a decrease in operability. For this reason, in order to prevent the notification member 58 from operating before the work vehicle arrives at the dredging, the operator moves the fertilizer unevenly distributed in the fertilizer hopper 60 and the remaining amount sensor 57 is in the detected state. However, if the aircraft is stopped to perform this operation, the work efficiency is lowered.

これを防止するために、最初に報知部材５８を停止させてから所定時間（約５分）経過後に、前回と同じ残量センサ５７が肥料の減少を検知した場合は、制御装置１００が報知部材５８に作動信号を送らない制御構成とすることにより、報知部材５８の停止操作を何度も行う必要が無いため、作業能率が向上するとともに、他の操作に集中することができるので、操作性が従来より向上する。 In order to prevent this, when the same remaining amount sensor 57 as the previous time detects a decrease in fertilizer after a predetermined time (about 5 minutes) has elapsed since the notification member 58 was first stopped, the control device 100 detects the notification member. By adopting a control configuration that does not send an operation signal to 58, it is not necessary to perform the stop operation of the notification member 58 many times, so that the work efficiency is improved and it is possible to concentrate on other operations. Is improved from the conventional level.

なお、制御装置１００は、前記報知部材５８の作動を停止させる報知停止スイッチ５９を入りとしたまま、例えば車庫入れなどをしておくと、次の作業時に残量センサ５７との連携に支障を来たすので、エンジン２０を始動したら報知部材５８が作動できる状態にしておく制御構成を備えている。
これにより、報知停止スイッチ５９を切り忘れたままで次回の作業を始める不具合が無くなるので、肥料切れによる未施肥区間の発生が防止されるため、苗の生育が安定すると共に、作物の収量や品質が従来より向上する。 If the control device 100 keeps the notification stop switch 59 for stopping the operation of the notification member 58 and puts it in, for example, a garage, it will interfere with the cooperation with the remaining amount sensor 57 in the next operation. Therefore, a control structure is provided to keep the notification member 58 in an operable state when the engine 20 is started.
This eliminates the trouble of starting the next operation without forgetting to turn off the notification stop switch 59, so that the occurrence of unfertilized sections due to running out of fertilizer is prevented, so that the growth of the seedling is stabilized and the yield and quality of the crop are conventionally improved. More improved.

また、残量センサ５７が肥料ホッパ６０内の肥料の残量減少を検知して報知部材５８を作動させた状態で報知停止スイッチ５９が所定時間以上（例：５秒以上）連続操作されると、制御装置１００は繰出し回転センサ４５が第１の所定回転数（例：１０〜２０回転）以上の回転を検出しても報知部材５８を作動させない制御構成を備えている。
こうして、報知停止スイッチ５９を所定時間以上（例：５秒以上）連続して操作されている状態で、繰出し回転センサ４５が第１の所定回転数（例：１０〜２０回転）以上の繰出ロール７３Ａ，７３Ｂの回転数を検知しても報知部材５８が作動しなくなるため、作業者は報知部材５８が作動するたびに報知停止スイッチ５９を操作する必要が無くなり、作業能率が向上すると共に、余計なストレスがかからず、作業者の負担が軽減される。 In addition, when the remaining amount sensor 57 detects a decrease in the remaining amount of fertilizer in the fertilizer hopper 60 and operates the notification member 58, the notification stop switch 59 is continuously operated for a predetermined time or longer (eg, 5 seconds or longer). The control device 100 has a control configuration in which the notification member 58 is not operated even if the feeding rotation sensor 45 detects a rotation equal to or higher than a first predetermined rotation number (eg, 10 to 20 rotations).
Thus, in a state where the notification stop switch 59 is continuously operated for a predetermined time or longer (for example, 5 seconds or longer), the feed rotation sensor 45 is fed by the first predetermined number of rotations (for example, 10 to 20 rotations) or higher. Even if the number of rotations of 73A and 73B is detected, the notification member 58 does not operate, so that the operator does not need to operate the notification stop switch 59 each time the notification member 58 is operated, and the work efficiency is improved and the extra work is performed. The stress on the operator is reduced.

報知停止スイッチ５９を所定時間以上（例：５秒以上）連続操作していても、繰出し回転センサ４５が第２の所定回転数以上（例：５０回転又は走行距離３０ｍ（走行距離は後輪１１の回転数を検知する図示しない後輪回転センサの回転数から割り出す）を検知すると、制御装置１００は報知部材５８を再度作動させる制御構成を備えている。そのため、報知停止スイッチ５９を所定時間以上連続して操作していても、繰出し回転センサ４５が繰出し装置６１の第２の所定回転数（例：５０回転）以上の回転数を検知すると再度報知部材５８が作動する構成としたことにより、作業者が煩わしく思わない程度の周期で肥料の減少を報知することができるので、肥料ホッパ６０内に肥料の補充を圃場端で忘れずに行うことができ、作業能率が従来技術以上に向上する。また、余計なストレスがかからず、作業者の負担が軽減される。 Even if the notification stop switch 59 is continuously operated for a predetermined time or longer (for example, 5 seconds or longer), the feeding rotation sensor 45 is not less than the second predetermined rotational speed (for example, 50 rotations or a traveling distance of 30 m (the traveling distance is equal to the rear wheel 11). The control device 100 is provided with a control structure for reactivating the notification member 58. Therefore, the notification stop switch 59 is set for a predetermined time or more. Even if the operation is continuously performed, the notification member 58 is activated again when the feeding rotation sensor 45 detects a rotation number equal to or higher than the second predetermined rotation number (eg, 50 rotations) of the feeding device 61. Since it is possible to notify the decrease in fertilizer at such a period that the operator does not feel bothersome, the fertilizer can be replenished in the fertilizer hopper 60 without forgetting it at the end of the field, and the work efficiency is obeyed. To improve more than technology. Also, it does not take extra stress, burden on the operator is reduced.

前記残量センサ５７が肥料ホッパ６０内の肥料の残量減少が前記所定値かさ高さ（例：約１０ｃｍ未満）になったことを検知して報知部材５８を作動させた状態で報知停止スイッチ５９を入りとして報知部材５８を作動させない状態としたとき、苗の植付状態からの所定の時間（例：６０〜１８０秒）が経過すると、再度報知部材５８を作動させることで、作業者が煩わしく思わない程度の周期で肥料の減少をブザー等が報知して、畦際に来ると肥料ホッパ６０内に肥料の補充を圃場端で忘れずに行うように促すことができる。 The notification stop switch in a state where the remaining amount sensor 57 detects that the decrease in the remaining amount of the fertilizer in the fertilizer hopper 60 has reached the predetermined height (for example, less than about 10 cm) and the notification member 58 is activated. When 59 is entered and the notification member 58 is not operated, when a predetermined time (eg, 60 to 180 seconds) from the seedling planting state has elapsed, the operator can operate the notification member 58 again to operate the notification member 58. A buzzer or the like notifies a decrease in fertilizer at a period that does not seem annoying, and when it comes to the shore, it can be urged to remember to replenish the fertilizer in the fertilizer hopper 60 at the end of the field.

図９の繰出し装置６１の機構を説明する図に示すように、肥料ホッパ６０から繰出し装置６１に移動する肥料の量を調節する繰出しアーム４７を繰出し装置６１に設け、該繰出しアーム４７の回動中心４７ｂを中心とする回動角度を、繰出しアーム４７に設けた繰出しポテンショメータ４７ａの検出角度が肥料繰出し量「多」（例えば基準値（０度）＋Ｘ（５〜３０度程度））の場合には、繰出し装置６１の繰出ロール７３Ａ，７３Ｂの第２の所定回転数を（例えば５０回転から４０回転に減少させ、走行距離も３０ｍから２０ｍに）減少させる。また、制御装置１００は、繰出しポテンショメータ４７ａの検出角度が肥料繰出し量「少」（例えば、基準値（０度）−Ｘ（−５〜−３０度程度））の場合には、繰出ロール７３Ａ，７３Ｂの第２の所定回転数を増加させる（例えば、５０回転から６０回転に増加させ、走行距離も３０ｍから４０ｍに増加させて、再度報知部材５８を作動させる）制御構成を有する。 As shown in the drawing for explaining the mechanism of the feeding device 61 in FIG. 9, a feeding arm 47 for adjusting the amount of fertilizer that moves from the fertilizer hopper 60 to the feeding device 61 is provided in the feeding device 61, and the feeding arm 47 rotates. The rotation angle about the center 47b is set when the detection angle of the feeding potentiometer 47a provided on the feeding arm 47 is the fertilizer feeding amount “high” (for example, the reference value (0 degrees) + X (about 5 to 30 degrees)). Reduces the second predetermined number of rotations of the feeding rolls 73A and 73B of the feeding device 61 (for example, from 50 to 40 rotations and the travel distance from 30 to 20 meters). In addition, when the detected angle of the feeding potentiometer 47a is the fertilizer feeding amount “small” (for example, the reference value (0 degree) −X (about −5 to −30 degrees)), the control device 100 can feed the feeding roll 73A, The second predetermined rotation speed of 73B is increased (for example, the rotation is increased from 50 rotations to 60 rotations, the travel distance is also increased from 30 m to 40 m, and the notification member 58 is operated again).

上記制御構成によれば、繰出しポテンショメータ４７ａが繰出しアーム４７の回動角度から繰出し量「多」となる回動角度を検出した場合、繰出し装置６１の繰出ロール７３Ａ，７３Ｂの第２所定回転数を減少させる構成としたことにより、肥料の消費速度が多いときは短いサイクルで肥料の減少を報知することができるので、作業者に圃場端での肥料の補充作業を促し易く、作業能率が従来技術より向上する。 According to the control configuration described above, when the feeding potentiometer 47a detects a turning angle at which the feeding amount is “large” from the turning angle of the feeding arm 47, the second predetermined rotational speed of the feeding rolls 73A and 73B of the feeding device 61 is set. By adopting a structure that reduces the amount of fertilizer consumption, it is possible to notify the decrease of the fertilizer in a short cycle, so it is easy to encourage the worker to replenish the fertilizer at the field edge, and the work efficiency is conventional technology More improved.

また、繰出しポテンショメータ４７ａが繰出しアーム４７の回動角度から繰出し量「少」となる回動角度を検出した場合、繰出ロール７３Ａ，７３Ｂの第２の所定回転数を増加させる構成としたことにより、肥料の消費速度が少ないときは長いサイクルで肥料の減少を報知することができるので、過度の報知を行うことがなく、作業者は肥料供給作業に集中でき、作業能率が従来技術より向上する。 Further, when the feeding potentiometer 47a detects a turning angle at which the feeding amount is “small” from the turning angle of the feeding arm 47, the second predetermined number of revolutions of the feeding rolls 73A and 73B is increased. When the fertilizer consumption rate is low, it is possible to notify the decrease of the fertilizer in a long cycle. Therefore, the operator can concentrate on the fertilizer supply work without excessive notification, and the work efficiency is improved as compared with the prior art.

図９に示すように肥料ホッパ６０の内壁の底部から約１０ｃｍの高さに残量センサ５７を取り付け、繰出し装置６１に設ける繰出ロッド６１ａを調節ハンドル６１ｂで該繰出ロッド６１ａの長手方向に移動調節させることで繰出アーム４７を、回動中心４７ｂを中心として矢印Ｙ方向（時計周り方向の回動で施肥量が少、反時計回り方向の回動で施肥量が多）に回動させて施肥量を調節することができる。すなわち、繰出アーム４７の下端部に連結された繰出回転変更アーム４８が押し引きされ、繰出回転変更アーム４８の繰出装置６１側に設けられたギヤ４８ａが繰り出しロール７３Ａ，７３Ｂの繰出軸７５の回転速度を変更する。 As shown in FIG. 9, the remaining amount sensor 57 is attached at a height of about 10 cm from the bottom of the inner wall of the fertilizer hopper 60, and the feeding rod 61a provided in the feeding device 61 is adjusted by moving the adjusting rod 61a in the longitudinal direction of the feeding rod 61a. As a result, the feeding arm 47 is rotated around the rotation center 47b in the direction of the arrow Y (the amount of fertilization is small when rotated clockwise, and the amount of fertilization is large when rotated counterclockwise). The amount can be adjusted. That is, the feeding rotation changing arm 48 connected to the lower end portion of the feeding arm 47 is pushed and pulled, and the gear 48a provided on the feeding device 61 side of the feeding rotation changing arm 48 rotates the feeding shaft 75 of the feeding rolls 73A and 73B. Change the speed.

また、調節ハンドル６１ｂの回転により、施肥量表示部６１ｃから目視できる繰出ロッド６１ａに固着された施肥量表示メタル６１ｄの摺動量で施肥量が分かる。なお、この施肥量表示メタル６１ｄの摺動で繰出アーム４７の上端部に連結している繰出ロッド６１ａが押し引きされ、繰出アーム４７が回動中心４７を中心として回動して施肥量が変化する。 Further, the amount of fertilization can be determined by the amount of sliding of the fertilization amount display metal 61d fixed to the feeding rod 61a that can be seen from the fertilization amount display portion 61c by the rotation of the adjustment handle 61b. Note that the feeding rod 61a connected to the upper end of the feeding arm 47 is pushed and pulled by the sliding of the fertilizing amount display metal 61d, and the feeding arm 47 rotates around the rotation center 47 to change the fertilizing amount. To do.

制御装置１００は、前記残量センサ５７が、肥料が予め設定された前記肥料切れとなる所定かさ高さ（例：ホッパ６０底部から高さ１０ｃｍ未満）であることを検知すると点灯状態となる表示ランプ９１を表示モニタ部に設け、報知停止スイッチ５９を操作すると、表示ランプ９１を所定時間（数分〜残量センサ５７が非検知になるまで）点滅させる（報知部材５８を当分作動させなくする操作をした場合でも、条件を満たすまでは表示ランプ９１が作動するということであり、例えば、５秒以上のスイッチ操作が必要な場合、操作した時点から５秒に到達するまでは表示ランプ９１が点灯（点滅）する）制御構成を備えている。 When the remaining amount sensor 57 detects that the fertilizer is set to a predetermined bulk height at which the fertilizer runs out (eg, less than 10 cm in height from the bottom of the hopper 60), the control device 100 is turned on. When the lamp 91 is provided in the display monitor unit and the notification stop switch 59 is operated, the display lamp 91 blinks for a predetermined time (several minutes to until the remaining amount sensor 57 is not detected) (the notification member 58 is not operated for a while). Even if an operation is performed, the display lamp 91 is operated until the condition is satisfied. For example, when a switch operation of 5 seconds or more is necessary, the display lamp 91 is not operated until 5 seconds from the time of operation. It has a control configuration that lights (flashes).

従って、報知停止スイッチ５９を操作すると、上記肥料の残量低下を報知する表示ランプ９１が所定時間（例：１５〜３０秒；なお、所定時間経過後、残量センサ５７が肥料の減少を検知したままの場合、再度点滅を開始する制御構成としても良い）点滅するので、視覚的に肥料の残量低下を作業者に報知することができ、作業者が圃場端での肥料の補充作業を忘れ難くなる。 Therefore, when the notification stop switch 59 is operated, the display lamp 91 that notifies the decrease in the remaining amount of fertilizer is displayed for a predetermined time (for example, 15 to 30 seconds; after the predetermined time has elapsed, the remaining amount sensor 57 detects the decrease in fertilizer. If this is the case, it may be a control configuration that starts blinking again.) Since it blinks, it is possible to visually notify the operator of a decrease in the remaining amount of fertilizer, and the worker can perform the fertilizer replenishment work at the field edge. It becomes difficult to forget.

図１０の肥料ホッパ６０の内部構造を示す平面図（図１０（ａ））と背面図（図１０（ｂ））に示すように繰出し装置６１から放出される肥料を移動させる風を発生させるブロワ６７の風を案内する送風管９２を肥料ホッパ６０内に配置し、該送風管９２に複数の噴出孔９２ａを形成した。また、繰出し装置６１送風管９２の外周に複数の排風孔９３ａを設けた外周回転軸９３（図１１の丸枠Ａ内）と該外周回転軸９３を駆動させる駆動モータ９４（図１１にのみ図示）を設けている。 As shown in a plan view (FIG. 10 (a)) and a rear view (FIG. 10 (b)) showing the internal structure of the fertilizer hopper 60 of FIG. 10, a blower that generates wind for moving the fertilizer discharged from the feeding device 61 is used. A blower pipe 92 for guiding 67 winds was disposed in the fertilizer hopper 60, and a plurality of ejection holes 92 a were formed in the blower pipe 92. Further, the outer peripheral rotating shaft 93 (inside the round frame A in FIG. 11) provided with a plurality of exhaust holes 93a on the outer periphery of the feeding device 61 blast pipe 92, and a drive motor 94 for driving the outer peripheral rotating shaft 93 (only in FIG. 11). (Shown) is provided.

こうして、ブロア６７の風を案内する送風管９２を肥料ホッパ６０内に配置し、送風管９２に複数の噴出孔９２ａを形成したことにより、肥料ホッパ６０内に風の流れを発生させて肥料を掻き混ぜることができるので、肥料同士が自重や水分等によって塊になることが防止され、肥料の繰出し量が設定通りとなるため、計画的な作業が行える。 Thus, the blower pipe 92 that guides the wind of the blower 67 is arranged in the fertilizer hopper 60, and a plurality of ejection holes 92a are formed in the blower pipe 92, so that a flow of wind is generated in the fertilizer hopper 60 and the fertilizer is supplied. Since they can be stirred, the fertilizers are prevented from clumping due to their own weight or moisture, and the amount of fertilizer delivered is as set, so that planned work can be performed.

また、図１１の肥料ホッパ６０の内部構造の平面図（図１１（ａ））と内部構造図（図１１（ｂ））に示すように繰出し装置６１の送風管９２の外周に複数の排風孔９３ａを設けた外周回転軸９３を設け、この外周回転軸９３を駆動モータ９４で回転させることにより、空気の流れに動きが生じるため、同じ部分の肥料だけが掻き混ぜられることを防止できるので、肥料がいっそう塊になりにくく、計画的な作業の遂行が可能となる。また、肥料が塊とならないことにより、肥料が一または複数個所に偏って減少することが防止されるので、一部の残量センサ５７だけが作動することが防止され、肥料ホッパ６０の全体から均一に肥料が減少、或いは使い切られたときに補充作業を行うことができ、補充作業の頻度が減って、作業能率が従来技術より向上する。 Further, as shown in a plan view (FIG. 11 (a)) and an internal structure diagram (FIG. 11 (b)) of the internal structure of the fertilizer hopper 60 of FIG. Since the outer peripheral rotating shaft 93 provided with the hole 93a is provided and the outer peripheral rotating shaft 93 is rotated by the drive motor 94, movement of the air flow is generated, so that only the fertilizer in the same portion can be prevented from being stirred. , Fertilizer is less likely to clump, making it possible to perform planned work. Further, since the fertilizer is not agglomerated, it is prevented that the fertilizer is biased to decrease in one or a plurality of places, so that only a part of the remaining amount sensor 57 is prevented from being operated, and the entire fertilizer hopper 60 can be prevented. When the fertilizer is uniformly reduced or used up, the replenishment work can be performed, the frequency of the replenishment work is reduced, and the work efficiency is improved as compared with the prior art.

さらに、塊になった粒状体が残量検知装置５７の前から動かず、実際の残量は残り少ないにもかかわらず、残量検知装置５７を非検知状態にすることを防止できるので、作業者が粒状体切れに気付かずに作業を継続することが防止され、作業者が手作業で粒状体の供給を行う必要が無くなる。 Furthermore, the granular material that has become a lump does not move from the front of the remaining amount detection device 57, and it is possible to prevent the remaining amount detection device 57 from being in a non-detection state even though the actual remaining amount is small. Therefore, it is possible to prevent the worker from continuing the work without noticing the breakage of the granular material, and the operator need not manually supply the granular material.

図１１（ｂ）の肥料ホッパ６０の内部構造図に示すように、駆動モータ９４をブロア６７の起風モータ６６とは反対側に配置し、外周回転軸９３の該排風孔９３ａは肥料ホッパ６０の傾斜部の上方に形成し、肥料ホッパ６０の中央部の底部の上方に外周回転軸９３に軸着する撹拌羽根９５を設けた。
このように、駆動モータ９４をブロア６７の起風モータ６６とは反対側に配置したことにより、苗移植機（請求項では「肥料供給装置」という。）の左右幅をコンパクトに抑えることができるので、旋回時等に肥料供給装置の左右幅が壁等に接触することが防止され、耐久性が従来より向上する。 As shown in the internal structure diagram of the fertilizer hopper 60 in FIG. 11B, the drive motor 94 is disposed on the opposite side of the blower 67 from the wind-up motor 66, and the exhaust hole 93 a of the outer peripheral rotating shaft 93 is provided with the fertilizer hopper. A stirring blade 95 that is formed above the inclined portion of 60 and is attached to the outer peripheral rotating shaft 93 is provided above the bottom of the central portion of the fertilizer hopper 60.
Thus, by arranging the drive motor 94 on the opposite side of the blower 67 from the wind-up motor 66, the lateral width of the seedling transplanter (referred to as “fertilizer supply device” in the claims) can be reduced in a compact manner. Therefore, the left and right width of the fertilizer supply device is prevented from coming into contact with the wall or the like during turning, and the durability is improved as compared with the prior art.

また、排風孔９３ａは肥料ホッパ６０内の傾斜部６０ｂの上方に形成したことにより、塊が発生し易い箇所の粒状体を外周回転軸９３の排風孔９３ａが掻き混ぜることができるので、粒状体がいっそう塊になりにくく、計画的な作業の遂行が可能となる。
さらに、外周回転軸９３に拡散羽根９５を軸着し、この拡散羽根９５を粒状体ホッパ６０の中央部の底部の上側に配置することにより、繰り出される直前の粒状体を掻き混ぜることができるので、繰出部６１に所定量の粒状体が供給され、供給ムラが生じることが防止される。 Further, since the air exhaust hole 93a is formed above the inclined portion 60b in the fertilizer hopper 60, the air exhaust hole 93a of the outer peripheral rotating shaft 93 can agitate the granular material at a location where lumps are likely to occur. Granules are less likely to clump, making it possible to perform planned work.
Further, by attaching the diffusion blade 95 to the outer peripheral rotation shaft 93 and disposing the diffusion blade 95 on the upper side of the bottom of the central portion of the granular material hopper 60, the granular material immediately before being fed can be stirred. A predetermined amount of granular material is supplied to the feeding unit 61, and supply unevenness is prevented from occurring.

図１１に示すように起風モータ６６駆動により肥料ホッパ内の肥料を拡散させる構成において苗植付部４がリフトするとこれに連動して起風（電動）モータ６６が駆動する構成にすると。苗植付部４のリフト中に肥料を肥料ホッパ６０内で撹拌できる。
また旋回センサ９６（図８のみに図示）をリヤケースに設けておき、走行車両が旋回中に旋回センサ９６の旋回検知で起風モータ６６を駆動する構成とすると旋回中に肥料を撹拌できる。 As shown in FIG. 11, when the seedling planting part 4 is lifted in the configuration in which the fertilizer in the fertilizer hopper is diffused by driving the wind motor 66, the wind (electric) motor 66 is driven in conjunction therewith. Fertilizer can be stirred in the fertilizer hopper 60 during the lift of the seedling planting unit 4.
Further, if a turning sensor 96 (shown only in FIG. 8) is provided in the rear case, and the traveling vehicle is configured to drive the wind motor 66 by turning detection of the turning sensor 96 during turning, the fertilizer can be agitated during turning.

本発明の苗移植機は、田植機に限らず、野菜苗などのその他の苗を植え付ける苗移植機として利用可能性がある。 The seedling transplanter of the present invention is not limited to a rice transplanter, and may be used as a seedling transplanter for planting other seedlings such as vegetable seedlings.

１施肥装置付き乗用型田植機２走行車体
３昇降リンク装置４苗植付部
５粉粒体繰出し装置（施肥装置）１０前輪
１１後輪１２ミッションケース
１３前輪ファイナルケース１５メインフレーム
１７ブロア作動スイッチ１８後輪ギヤケース
２０エンジン２１ベルト伝動装置
２３油圧無段変速装置（ＨＳＴ）
２５植付クラッチケース２６植付伝動軸
２７（２７ａ，２７ｂ）ロータ
２７ａ第１ロータ２７ｂ第２ロータ
２８施肥伝動機構３０エンジンカバー
３１座席３２フロントカバー
３３操縦部３４ハンドル
３５フロアステップ３６リヤステップ
３７切替駆動装置
３８ａ，３８ｂ，３８ｃ第１、第２、第３予備苗載せ台
４０上リンク４１下リンク
４２リンクベースフレーム４３縦リンク
４４連結軸４５繰出し回転センサ
４６昇降油圧式シリンダ４７繰出アーム
４７ａ繰出しアームポテンショメータ
４７ｂ回動中心４８繰出回転変更アーム
４８ａギヤ４９支持機枠
５０伝動ケース５１苗載せ台
５１ａ苗取出口５１ｂ苗送りベルト
５２苗植付装置６６ブロア用電動モータ
５５センターフロート５６サイドフロート
５７残量センサ５８報知部材
５９報知停止スイッチ６０肥料ホッパ
６０ａ蓋６０ｂ傾斜部
６１繰出部（装置）６１ａ繰出ロッド
６１ｂ調節ハンドル６１ｃ施肥表示部
６１ｄ施肥量表示メタル６１ｘ吐出口
６２施肥ホース６３施肥ガイド
６４作溝体６５支持枠体
６５ａ支持ローラ６６起風電動モータ
６７肥料搬送用ブロア６７ａエア吐出口
６８エアチャンバ６８ａゴム管
６８ｂ樹脂管６９肥料乾燥用ブロア
６９ａプーリ７０施肥フレーム
７１回動アーム７２係止具
７３Ａ、７３Ｂ繰出ロール７４凹部
７５繰出軸７５ａ角軸部
７６ブラシ７７繰出停止シャッタ
７７ａ把手７８繰出部ケース
７８ａ固定部分７８ｂ離脱部分
７９スライド支持部８０接続管
８１エア切替管８３肥料排出口
８４回収シャッタ８４ａ回動軸
８５肥料回収管８６エア切替シャッタ
８６ａ回動軸８７肥料回収口
８８送風フィン８９マグネット部
９０肥料回収レバー９１表示ランプ
９２送風管９２ａ噴出孔
９３外周回転軸９３ａ排風孔
９４駆動モータ９５攪拌羽根
９６旋回センサ１００制御装置 DESCRIPTION OF SYMBOLS 1 Riding type rice transplanter with fertilizer 2 Traveling vehicle body 3 Elevating link device 4 Seedling planting part 5 Granule feeding device (fertilizer) 10 Front wheel 11 Rear wheel 12 Mission case 13 Front wheel final case 15 Main frame 17 Blower operation switch 18 Rear wheel gear case 20 Engine 21 Belt transmission 23 Hydraulic continuously variable transmission (HST)
25 Planting clutch case 26 Planting transmission shaft 27 (27a, 27b) Rotor 27a First rotor 27b Second rotor 28 Fertilizer transmission mechanism 30 Engine cover 31 Seat 32 Front cover 33 Control section 34 Handle 35 Floor step 36 Rear step 37 Switching Driving devices 38a, 38b, 38c First, second and third preliminary seedling platforms 40 Upper link 41 Lower link 42 Link base frame 43 Vertical link 44 Connecting shaft 45 Feeding rotation sensor 46 Lifting hydraulic cylinder 47 Feeding arm 47a Feeding arm Potentiometer 47b Center of rotation 48 Feeding rotation change arm 48a Gear 49 Supporting machine frame 50 Transmission case 51 Seedling stand 51a Seedling outlet 51b Seedling feeding belt 52 Seedling planting device 66 Blower electric motor 55 Center float 56 Side float 57 Remaining amount sensor 58 Notification member 59 Notification stop switch 60 Fertilizer hopper 60a Lid 60b Inclined portion 61 Feeding portion (device) 61a Feeding rod 61b Adjusting handle 61c Fertilization display portion 61d Fertilization amount display metal 61x Discharge port 62 Fertilization hose 63 Fertilization guide 64 Groove body 65 Support frame body 65a Support roller 66 Electromotive electric motor 67 Fertilizer conveying blower 67a Air discharge port 68 Air chamber 68a Rubber tube 68b Resin tube 69 Fertilizer drying blower 69a Pulley 70 Fertilizer frame 71 Rotating arm 72 Locking tool 73A, 73B Feeding roll 74 Recessed part 75 Feeding shaft 75a Square shaft part 76 Brush 77 Feeding stop shutter 77a Handle 78 Feeding part case 78a Fixed part 78b Detachment part 79 Slide support part 80 Connection pipe 81 Air switching pipe 83 Fertilizer discharge port 84 Recovery shutter 8 a rotating shaft 85 fertilizer collecting pipe 86 air switching shutter 86a rotating shaft 87 fertilizer collecting port 88 blower fin 89 magnet portion 90 fertilizer collecting lever 91 display lamp 92 blower pipe 92a ejection hole 93 outer peripheral rotating shaft 93a exhaust air hole 94 drive motor 95 Stirring blade 96 Rotation sensor 100 Control device

Claims

A traveling vehicle body (2) provided with traveling wheels (10, 11), a granular material storage unit (60) for storing granular materials, and a rotary type that receives granular materials from the granular material storage units (60) and discharges them by a predetermined amount. In the granular material supply apparatus provided with the feeding part (61) of
A remaining amount detection device (57) for detecting whether or not the granular material stored in the granular material storage unit (60) is equal to or higher than a predetermined height.
A notification member (58) that operates when the remaining amount detection device (57) detects less than the predetermined bulk height;
A notification stop device (59) for stopping the operation of the notification member (58), a rotation detection device (45) for detecting the number of revolutions of the feeding roll of the feeding device (61),
A control device (100) having a control configuration for operating the notification member (58) again when the rotation detection device (45) detects the number of rotations greater than or equal to a predetermined number after operating the notification stop device (59).
A granular material supply apparatus comprising:

With the remaining amount detecting device (57) detecting a decrease in the remaining amount of the granular material in the granular material storing unit (60) and the notification member (58) operating, the notification stopping device (59) is continuously operated for a predetermined time or more. Then, the control device (100) has a control configuration in which the notification member (58) is not operated even when the rotation detection device (45) detects a rotation of the feeding device (61) exceeding the first predetermined number of rotations. The granular material supply apparatus according to claim 1, further comprising:

Even if the notification stop device (59) is continuously operated for a predetermined time or more, when the rotation detection device (45) detects the second predetermined rotation speed or more of the feeding device (61), the control device (100) is notified by the notification member. The granular material supply apparatus according to claim 2, further comprising a control structure for actuating (58) again.

The control device (100)
A feeding arm (47) for adjusting the amount of the granular material moving from the granular material reservoir (60) to the feeding device (61);
A feeding potentiometer (47a) provided on the feeding arm (47);
When the detection angle of the feeding potentiometer (47a) is larger than the reference value (0 degree) and the feeding amount is “many”, the second predetermined rotational speed is decreased, and the detection angle of the feeding potentiometer (47a). The seedling transplanter according to claim 3, wherein the seedling transplanter has a control configuration for increasing the second predetermined number of revolutions when the fertilizer feed amount is "low" when is less than a reference value (0 degrees).

A display lamp (91) that is turned on when the remaining amount detection device (57) detects that the granular material is less than the predetermined bulk height set in advance;
The granular material supply according to any one of claims 1 to 4, wherein when the notification stop device (59) is operated, the control device 100 controls the display lamp (91) to blink for a predetermined time. apparatus.

A wind-up device (67) for generating a wind for moving the granular material discharged from the feeding device (61);
The blower pipe (92) for guiding the wind of the wind generator (67) is disposed in the granular material storage part (60), and a plurality of ejection holes (92a) are formed in the blower pipe (92). The granular material supply apparatus according to any one of claims 1 to 5.

An outer peripheral rotating shaft (93) provided with a plurality of exhaust holes (93a) on the outer periphery of the blower pipe (92) and a drive motor (94) for driving the outer peripheral rotating shaft (93) are provided. The granular material supply apparatus according to claim 6.

The drive motor (94) is disposed on the side opposite to the wind motor (66) of the wind generator (67), and the air exhaust hole (93a) of the outer peripheral rotating shaft (93) is the bottom of the granular material reservoir (60). The diffusion blade (95) is disposed above the inclined portion (60b) provided on the side and is attached to the outer peripheral rotation shaft (93) above the bottom of the central portion of the granular material storage portion (60). The granular material supply apparatus according to claim 7, characterized in that: