JP5281235B2 - Granular material feeding machine - Google Patents

Granular material feeding machine Download PDF

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JP5281235B2
JP5281235B2 JP2006184701A JP2006184701A JP5281235B2 JP 5281235 B2 JP5281235 B2 JP 5281235B2 JP 2006184701 A JP2006184701 A JP 2006184701A JP 2006184701 A JP2006184701 A JP 2006184701A JP 5281235 B2 JP5281235 B2 JP 5281235B2
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feeding
feeding roll
granular material
hole
roll
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JP2008011746A (en
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講平 島本
定之 高山
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Agritecno Yazaki Co Ltd
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Agritecno Yazaki Co Ltd
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Description

本発明は、薬剤、肥料、種子等の粒状物を所定量だけ圃場に繰り出す粒状物繰出機に関し、特に、繰出ロール外周面に保持した粒状物を、繰出ロールの前後回転とともに下方に搬送する粒状物繰出機の繰出ロール保護構造に関する。   The present invention relates to a granular material feeding machine that delivers a predetermined amount of granular materials such as drugs, fertilizers, and seeds to a field, and in particular, granular material that conveys the granular material held on the outer peripheral surface of the feeding roll downward together with the forward and backward rotation of the feeding roll. The present invention relates to a feeding roll protection structure for a material feeding machine.

従来より、薬剤、肥料、種子等の粒状物を繰り出して播種、薬剤散布、施肥等を行うロール式の繰出装置を備えた粒状物繰出機が知られている。例えば、該粒状物繰出機である播種機の繰出装置には、外周面に凹部を形成した円柱状の繰出ロールが軸支され、該繰出ロールの回転とともに前記凹部に嵌入した粒状物が下方に搬送されるようにしている。この繰出ロールの外周面近傍には、繰出ロールの回転方向に順に、ブラシと、外周面に沿ったガイド板とが配設され、このうちのブラシにより、凹部に嵌入できない余分な粒状物を除去し、その上で、前記ガイド板により、凹部に嵌入した粒状物が落下部まで確実に保持・搬送されるようにする技術(例えば、特許文献1参照)が公知となっている。
実開平3−79612号公報
2. Description of the Related Art Conventionally, a granular material feeding machine including a roll-type feeding device that feeds granular materials such as drugs, fertilizers, and seeds and performs sowing, chemical spraying, fertilization, and the like is known. For example, in a feeding device of a seeding machine that is the granular material feeding machine, a cylindrical feeding roll having a concave portion formed on the outer peripheral surface is pivotally supported, and the granular material fitted in the concave portion is rotated downward with the rotation of the feeding roll. It is supposed to be transported. In the vicinity of the outer peripheral surface of the feeding roll, a brush and a guide plate along the outer peripheral surface are arranged in order in the rotation direction of the feeding roll, and the extra granular material that cannot be fitted into the recess is removed by the brush. In addition, a technique (for example, see Patent Document 1) is known in which the guide plate reliably holds and conveys the granular material fitted in the concave portion to the dropping portion.
Japanese Utility Model Publication No. 3-79612

しかしながら、前記繰出装置において、粒状物側の損傷や圧壊については、ガイド板の形状や、繰出ロールとの接触面の性状を改善することによって、防止できるものの、表面の硬い粒状物、例えば、ダイシストン粒剤、ダイアジノン粒剤、アドバンテージ粒剤等の粒状農薬を使用する場合に、繰出ロール側を保護する技術については、開示されていない。つまり、多量の硬い粒状物が繰出ロールの外周面上に厚く重なった状態で、該繰出ロールが回転すると、この硬い粒状物の擦過によって繰出ロールの外周面が激しく損傷する。このため、ロール交換が頻繁となってメンテナンスコストが増加すると共に、繰出ロールの外周面がいびつとなって繰出ロールの外周面と前記ガイド板との隙間が部分的に大きくなり、該隙間から粒状物が途中で落下し、粒状物を所定の落下部まで確実に保持・搬送することができずに圃場への粒状物の供給精度が悪化すると共に、挟まった粒状物によって繰出ロールの外周面の損傷が更に進む、という問題があった。   However, in the feeding device, damage or crushing on the side of the granular material can be prevented by improving the shape of the guide plate and the property of the contact surface with the feeding roll, but the granular material having a hard surface, for example, Dicestone. When using granular agrochemicals, such as a granule, a diazinon granule, an advantage granule, etc., the technique which protects a delivery roll side is not disclosed. That is, when the feeding roll rotates in a state where a large amount of hard granular material is thickly overlapped on the outer peripheral surface of the feeding roll, the outer peripheral surface of the feeding roll is severely damaged by the abrasion of the hard granular material. For this reason, roll replacement is frequent and maintenance costs increase, and the outer peripheral surface of the feeding roll becomes distorted, and the gap between the outer peripheral surface of the feeding roll and the guide plate is partially increased, and the granularity is formed from the gap. The material falls in the middle, and the granular material cannot be reliably held and transported to the predetermined falling part, and the supply accuracy of the granular material to the field deteriorates. There was a problem of further damage.

本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。
請求項1においては、粒状物(46)を蓄えるホッパー(47)と、該ホッパー(47)内の下部空間に連通する繰出装置(48)とを有し、該繰出装置(48)には、外周面に前記粒状物(46)を嵌入可能な凹部(45a)を形成した繰出ロール(45)を設け、該繰出ロール(45)の回転とともに前記凹部(45a)内の粒状物(46)を下方に搬送する粒状物繰出機(27)において、前記繰出ロール(45)外周面で、前記ホッパー(47)の下部空間(49)への露出部分には保護板(20)を周設し、該保護板(20)は繰出ロール(45)の外周面(45b)に沿って湾曲した形状で繰出ロール(45)の損傷を防止する保護部材(20a )と、該保護部材(20a )の前端(20e)に接続された平板状の支持部(20b)とから構成し、該保護部材(20a )には、前記凹部(45a)の開口径よりも大きく前記粒状物(46)が嵌入可能な通過孔(20c)を設け、該支持部(20b)には、前記ホッパー(47)のネジ孔(47g)に固定する為の取付孔(20d)を穿設し、該通過孔(20c)内で繰出ロール(45)の回転方向(51)の後側に位置する通過孔後部(20f)を、繰出ロール(45)の軸心略直上位置、または該軸心略直上位置よりも繰出ロール(45)の回転方向(51)前側に設けたものである。
請求項2においては、請求項1記載の粒状物繰出機において、前記繰出装置(48)には、前記通過孔(20c)から凹部に嵌入できない余分な粒状物等を除去するブラシ(16)を、前記保護板(20)の回転方向(51)前部側に配置し、該ブラシ(16)にはネジ孔(16b)を穿設し、前記保護板(20)の支持部(20b)の取付孔(20d)に挿入したネジ(17)により、ホッパー(47)のネジ孔(47g)に固定するものである。
請求項3においては、請求項2記載の粒状物繰出機において、前記保護板(40)通過孔(40c)は、繰出ロール(45)の回転方向に沿って長い長孔形状に構成し、該通過孔(40c)内における繰出ロール(45)の回転方向(51)の通過孔前部(40g)は、前記保護板(40)の支持部(40b)まで延設され、該ブラシ(16)の刷毛部(16a)に至るものである。
The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
In Claim 1, it has the hopper (47) which stores a granular material (46), and the drawing | feeding-out apparatus (48) connected to the lower space in this hopper (47), A feeding roll (45) in which a concave portion (45a) into which the granular material (46) can be fitted is provided on the outer peripheral surface, and the granular material (46) in the concave portion (45a) is rotated along with the rotation of the feeding roll (45). In the granular material feeding machine (27) to be conveyed downward, a protective plate (20) is provided around an outer peripheral surface of the feeding roll (45) and exposed to a lower space (49) of the hopper (47), The protective plate (20) has a shape curved along the outer peripheral surface (45b) of the feeding roll (45) and has a protective member (20a) for preventing the feeding roll (45) from being damaged, and the front end of the protective member (20a). (20e) a flat plate-like support portion (20b) The protective member (20a) is provided with a passage hole (20c) larger than the opening diameter of the recess (45a) and into which the particulate matter (46) can be fitted, and the support portion (20b) Is provided with a mounting hole (20d) for fixing to the screw hole (47g) of the hopper (47), and after the rotation direction (51) of the feeding roll (45) in the passage hole (20c). The through hole rear portion (20f) located on the side is provided at a position substantially immediately above the axial center of the feeding roll (45), or on the front side in the rotation direction (51) of the feeding roll (45) from the position substantially directly above the axial center. is there.
In Claim 2, in the granular material feeding machine according to Claim 1, the feeding device (48) is provided with a brush (16) for removing extra granular material that cannot be fitted into the recesses from the passage hole (20c). The protective plate (20) is arranged on the front side of the rotation direction (51), the screw (16b) is formed with a screw hole (16b), and the support plate (20b) of the protective plate (20) is formed. It fixes to the screw hole (47g) of a hopper (47) with the screw (17) inserted in the attachment hole (20d).
According to Claim 3, in the granular material feeding machine according to Claim 2, the protection plate (40) passing hole (40c) is formed in a long slot shape along the rotation direction of the feeding roll (45), A passage hole front part (40g) in the rotation direction (51) of the feeding roll (45) in the passage hole (40c) extends to the support part (40b) of the protective plate (40), and the brush (16). To the brush part (16a).

本発明は、以上のように構成したので、以下に示す効果を奏する。
請求項1においては、粒状物(46)を蓄えるホッパー(47)と、該ホッパー(47)内の下部空間に連通する繰出装置(48)とを有し、該繰出装置(48)には、外周面に前記粒状物(46)を嵌入可能な凹部(45a)を形成した繰出ロール(45)を設け、該繰出ロール(45)の回転とともに前記凹部(45a)内の粒状物(46)を下方に搬送する粒状物繰出機(27)において、前記繰出ロール(45)外周面で、前記ホッパー(47)の下部空間(49)への露出部分には保護板(20)を周設し、該保護板(20)は繰出ロール(45)の外周面(45b)に沿って湾曲した形状で繰出ロール(45)の損傷を防止する保護部材(20a )と、該保護部材(20a )の前端(20e)に接続された平板状の支持部(20b)とから構成し、該保護部材(20a )には、前記凹部(45a)の開口径よりも大きく前記粒状物(46)が嵌入可能な通過孔(20c)を設け、該支持部(20b)には、前記ホッパー(47)のネジ孔(47g)に固定する為の取付孔(20d)を穿設し、該通過孔(20c)内で繰出ロール(45)の回転方向(51)の後側に位置する通過孔後部(20f)を、繰出ロール(45)の軸心略直上位置、または該軸心略直上位置よりも繰出ロール(45)の回転方向(51)前側に設けたので、該保護部材を繰出ロールの外周面と粒状物との間に介設することができ、表面の硬い粒状物を使用する場合でも、繰出ロールの外周面のうち前記粒状物に直接接触する部分を減少させ、硬い粒状物の擦過による外周面の損傷を大きく軽減することができ、これにより、ロール交換が少なくなってメンテナンスコストを大きく低減させることができる。
しかも、繰出ロールの外周面が滑らかに維持されることから、前記保護部材の先にガイド板を備える場合には、該ガイド板と前記外周面との隙間を適正に調節することができ、粒状物がロール回転途中で落下しないようにして、粒状物を所定の落下部まで確実に保持・搬送して圃場への粒状物の供給精度を向上させることができる。
更に、凹部の開口径よりも大きい通過孔を形成するだけで、複雑な構造を設けることなく凹部への粒状物の嵌入を円滑に行うことができ、繰出ロール保護構造の簡素化による製造コストの低減とメンテナンス性の向上を図ることができる。
しかも、通過孔後部の位置を適正化することにより、小さな粒状物や粉片等が繰出ロールの凹部の縁から外周面と保護部材との隙間に落ち込むのを確実に防止して、小さな粒状物や粉片等の擦過による外周面の損傷までも軽減することができ、一層の、ロール交換頻度の減少によるメンテナンスコストの低減や、粒状物の供給精度の向上を図ることができる。
請求項2においては、請求項1記載の粒状物繰出機において、前記繰出装置(48)には、前記通過孔(20c)から凹部に嵌入できない余分な粒状物等を除去するブラシ(16)を、前記保護板(20)の回転方向(51)前部側に配置し、該ブラシ(16)にはネジ孔(16b)を穿設し、前記保護板(20)の支持部(20b)の取付孔(20d)に挿入したネジ(17)により、ホッパー(47)のネジ孔(47g)に固定するので、該通過孔前部から、外周面と保護部材との隙間や、保護部材の前方にガイド板を備える場合には外周面とガイド板との隙間に入り込もうとする小さな粒状物や粉片等を、前記刷毛部によって確実に堰き止めると共に掃き出すことができ、小さな粒状物や粉片等の擦過による外周面の損傷を一層確実に防止することができる。
請求項3においては、請求項2記載の粒状物繰出機において、前記保護板(40)通過孔(40c)は、繰出ロール(45)の回転方向に沿って長い長孔形状に構成し、該通過孔(40c)内における繰出ロール(45)の回転方向(51)の通過孔前部(40g)は、前記保護板(40)の支持部(40b)まで延設され、該ブラシ(16)の刷毛部(16a)に至るので、凹部への粒状物の嵌入と凹部からの余分な粒状物の離脱が可能な区間を、長く確保することができ、凹部への粒状物の充填密度を高めると共に、余分な粒状物を確実に離脱させることができる。
Since this invention was comprised as mentioned above, there exists an effect shown below.
In Claim 1, it has the hopper (47) which stores a granular material (46), and the drawing | feeding-out apparatus (48) connected to the lower space in this hopper (47), A feeding roll (45) in which a concave portion (45a) into which the granular material (46) can be fitted is provided on the outer peripheral surface, and the granular material (46) in the concave portion (45a) is rotated with the rotation of the feeding roll (45). In the granular material feeding machine (27) to be conveyed downward, a protective plate (20) is provided around an outer peripheral surface of the feeding roll (45) and exposed to a lower space (49) of the hopper (47), The protective plate (20) has a shape curved along the outer peripheral surface (45b) of the feeding roll (45) and has a protective member (20a) for preventing the feeding roll (45) from being damaged, and the front end of the protective member (20a). (20e) a flat plate-like support portion (20b) The protective member (20a) is provided with a passage hole (20c) larger than the opening diameter of the recess (45a) and into which the particulate matter (46) can be fitted, and the support portion (20b) Is provided with a mounting hole (20d) for fixing to the screw hole (47g) of the hopper (47), and after the rotation direction (51) of the feeding roll (45) in the passage hole (20c). Since the rear portion (20f) of the through hole located on the side is provided at a position substantially directly above the axis of the feeding roll (45), or at the front side in the rotational direction (51) of the feeding roll (45) from the position substantially directly above the axis. The protective member can be interposed between the outer peripheral surface of the feeding roll and the granular material, and even when a hard granular material is used, the portion of the outer peripheral surface of the feeding roll that directly contacts the granular material Greatly reduces damage to the outer peripheral surface caused by abrasion of hard granular materials It can, thereby, it is possible to greatly reduce the maintenance costs become roll change is small.
Moreover, since the outer peripheral surface of the feeding roll is maintained smoothly, when a guide plate is provided at the tip of the protective member, the gap between the guide plate and the outer peripheral surface can be adjusted appropriately, It is possible to improve the supply accuracy of the granular material to the field by ensuring that the granular material does not fall in the middle of the roll rotation, and that the granular material is securely held and transported to the predetermined dropping part.
Furthermore, it is possible to smoothly insert the granular material into the recess without providing a complicated structure simply by forming a passage hole larger than the opening diameter of the recess, and the manufacturing cost can be reduced by simplifying the feeding roll protection structure. Reduction and maintenance can be improved.
Moreover, by optimizing the position of the rear portion of the passage hole, it is possible to reliably prevent small granular materials and powder pieces from falling from the edge of the recess of the feeding roll into the gap between the outer peripheral surface and the protective member. It is also possible to reduce damage to the outer peripheral surface due to rubbing of particles and powder pieces, further reducing maintenance costs by reducing the frequency of roll replacement and improving the supply accuracy of granular materials.
In Claim 2, in the granular material feeding machine according to Claim 1, the feeding device (48) is provided with a brush (16) for removing extra granular material that cannot be fitted into the recesses from the passage hole (20c). The protective plate (20) is arranged on the front side of the rotation direction (51), the screw (16b) is formed with a screw hole (16b), and the support plate (20b) of the protective plate (20) is formed. The screw (17) inserted into the mounting hole (20d) is fixed to the screw hole (47g) of the hopper (47), so that the clearance between the outer peripheral surface and the protective member from the front of the passage hole, or the front of the protective member If the guide plate is provided with a small granular material or powder pieces, etc. that are about to enter the gap between the outer peripheral surface and the guide plate, the brush portion can be surely dammed and swept away, and the small granular materials and powder pieces, etc. More reliably damage the outer peripheral surface due to abrasion It can be stopped.
According to Claim 3, in the granular material feeding machine according to Claim 2, the protection plate (40) passing hole (40c) is formed in a long slot shape along the rotation direction of the feeding roll (45), A passage hole front part (40g) in the rotation direction (51) of the feeding roll (45) in the passage hole (40c) extends to the support part (40b) of the protective plate (40), and the brush (16). Therefore, it is possible to secure a long section in which the granular material can be inserted into the concave portion and the extra granular material can be detached from the concave portion, and the density of the granular material in the concave portion is increased. At the same time, it is possible to reliably remove excess particulate matter.

次に、発明の実施の形態を説明する。図1は本発明に係わる人力播種機の全体構成を示す全体側面図、図2は同じく平面一部断面図、図3は薬剤繰出機の側面一部断面図、図4は保護板の取付構成を示す繰出ロール周辺の側面一部断面図、図5は円形状の通過孔を有する保護板の側面断面図とその斜視図であって、図5(a)は円形状の通過孔を有する保護板の側面断面図、図5(b)は図5(a)の矢印53の方向から見た保護板の斜視図、図6は長孔形状の通過孔を有する保護板の側面断面図とその斜視図であって、図6(a)は長孔形状の通過孔を有する保護板の側面断面図、図6(b)は図6(a)の矢印54の方向から見た保護板の斜視図である。   Next, embodiments of the invention will be described. FIG. 1 is an overall side view showing the overall configuration of a human-powered seeder according to the present invention, FIG. 2 is a partially sectional view of the same plane, FIG. 3 is a partially sectional side view of a medicine feeder, and FIG. FIG. 5 is a side sectional view of a protective plate having a circular passage hole and a perspective view thereof, and FIG. 5 (a) is a protection having a circular passage hole. FIG. 5B is a perspective view of the protective plate viewed from the direction of the arrow 53 in FIG. 5A, FIG. 6 is a side sectional view of the protective plate having a long hole-shaped passage hole, and FIG. 6A is a side sectional view of a protective plate having a long hole-shaped passage hole, and FIG. 6B is a perspective view of the protective plate viewed from the direction of an arrow 54 in FIG. FIG.

まず、本発明に係わる粒状物繰出機を備えた人力播種機25の全体構成について、図1、図2により説明する。なお、図1中の矢印28の方向を、人力播種機25の前方とする。該人力播種機25においては、左右のメインフレーム1・1の前端に駆動輪2の駆動軸2aが軸支され、該駆動軸2aの一端は、前記メインフレーム1・1より側方に突出してチェーンケース3の前部に挿入され、該チェーンケース3内でスプロケット29が固設されている。このチェーンケース3の後部には入力軸31が左右方向に軸支され、該入力軸31の途中部に設けたスプロケット32と前記スプロケット29との間にはチェーン30が巻回されており、該チェーン30を介して、駆動輪2の回転動力が入力軸31に伝達されるようにしている。なお、前記駆動輪2の側面周囲には、駆動輪2に滑りを生じないようにラグ2bが固設されている。   First, the whole structure of the manual seeding machine 25 provided with the granular material feeding machine concerning this invention is demonstrated with FIG. 1, FIG. In addition, let the direction of the arrow 28 in FIG. In the human power seeder 25, the drive shaft 2a of the drive wheel 2 is pivotally supported at the front ends of the left and right main frames 1 and 1, and one end of the drive shaft 2a protrudes laterally from the main frame 1 and 1. The sprocket 29 is fixedly inserted in the chain case 3 by being inserted into the front portion of the chain case 3. An input shaft 31 is pivotally supported in the left-right direction at the rear portion of the chain case 3, and a chain 30 is wound between a sprocket 32 provided in the middle of the input shaft 31 and the sprocket 29. The rotational power of the drive wheel 2 is transmitted to the input shaft 31 via the chain 30. A lug 2b is fixed around the side surface of the drive wheel 2 so that the drive wheel 2 does not slip.

そして、前記入力軸31の内端には駆動軸4が嵌合され、該駆動軸4によって種子繰出機26の繰出ロール15が駆動されるようにしている。また、前記入力軸31とスプロケット32との間にはワンウェイクラッチ33が介装され、前進時のみ駆動輪2からの動力を入力軸31に伝達するように構成しており、播種作業中に前記駆動輪2が逆転しても、繰出ロール15が逆回転することなく粒状物の安定した繰り出しを行うことができる。   A drive shaft 4 is fitted to the inner end of the input shaft 31, and the feed roll 15 of the seed feed machine 26 is driven by the drive shaft 4. Further, a one-way clutch 33 is interposed between the input shaft 31 and the sprocket 32, and is configured to transmit power from the drive wheels 2 to the input shaft 31 only during forward movement. Even if the drive wheels 2 are reversed, the granular material can be stably fed without the feeding roll 15 rotating in the reverse direction.

更に、前記入力軸31の外端にはスプロケット34が固設されると共に、前記チェーンケース3からはチェーンケース41が後方に連設され、該チェーンケース41の後部には入力軸42が左右方向に軸支されている。該入力軸42上のスプロケット43と前記スプロケット34との間にチェーン35が巻回され、該チェーン35を介して、前記入力軸31の回転動力が入力軸42に伝達されるようにしている。そして、該入力軸42の内端には駆動軸44が嵌合され、該駆動軸44によって薬剤繰出機27の繰出ロール45が駆動されるようにしている。該薬剤繰出機27は前記メインフレーム1・1の後部に立設された支持フレーム37上に載置固定されると共に、薬剤繰出機27の下部には漏斗38、ガイドホース39が連通されており、薬剤繰出機27から繰り出された粒状の薬剤(以下、「粒状薬剤」とする)が、これら漏斗38、ガイドホース39を介して播種位置の後部に散布されるようにしている。   Further, a sprocket 34 is fixed to the outer end of the input shaft 31, and a chain case 41 is connected rearward from the chain case 3. Is pivotally supported. A chain 35 is wound between the sprocket 43 on the input shaft 42 and the sprocket 34, and the rotational power of the input shaft 31 is transmitted to the input shaft 42 via the chain 35. A driving shaft 44 is fitted to the inner end of the input shaft 42, and the feeding roll 45 of the medicine feeding machine 27 is driven by the driving shaft 44. The medicine feeding machine 27 is placed and fixed on a support frame 37 erected at the rear of the main frame 1. 1, and a funnel 38 and a guide hose 39 are communicated with the lower part of the medicine feeding machine 27. The granular medicine fed from the medicine feeding machine 27 (hereinafter referred to as “granular medicine”) is sprayed to the rear portion of the seeding position via the funnel 38 and the guide hose 39.

また、前記駆動輪2後部でメインフレーム1・1間には支持ステー5が架設され、該支持ステー5の前部は、前記駆動輪2に近接させてスクレパー部5aとし、支持ステー5の左右中央部には、持ち運び用の正面視門形の把手6が立設されている。更に、支持ステー5の後部には、下端に作溝器7を固設した支持ロッド8が上下位置調節可能に固設され、前記作溝器7の後端からは、覆土板10が突出されると共に、支持ステー5の後端には、前記種子繰出機26が載置固定されている。そして、前記メインフレーム1・1の後部からは、ハンドル11が後ろ斜め上方に突設され、メインフレーム1・1の後端上には、制御ボックス12が架設され、更に、メインフレーム1・1の後端からは、ローラフレーム13・13が後方に延出され、該ローラフレーム13・13の後端間には鎮圧ローラ14が軸支されている。   Further, a support stay 5 is installed between the main frames 1 and 1 at the rear portion of the drive wheel 2, and the front portion of the support stay 5 is a scraper portion 5 a in the vicinity of the drive wheel 2. At the center, a handle 6 having a frontal portal shape for carrying is erected. Further, a support rod 8 having a groove forming device 7 fixed to the lower end is fixed to the rear portion of the support stay 5 so that the vertical position can be adjusted, and a cover plate 10 projects from the rear end of the groove forming device 7. In addition, the seed feeder 26 is placed and fixed at the rear end of the support stay 5. A handle 11 protrudes obliquely upward and rearward from the rear part of the main frame 1. 1. A control box 12 is installed on the rear end of the main frame 1. The roller frames 13 and 13 extend rearward from the rear end, and a pressure reducing roller 14 is pivotally supported between the rear ends of the roller frames 13 and 13.

このような構成において、作業者がハンドル11を操作して人力播種機25を前方の矢印28の方向に押動していくと、圃場36の上を駆動輪2後方の作溝器7が進行して播種溝を形成し、該播種溝内に、前記駆動輪2によって駆動される種子繰出機26と薬剤繰出機27からそれぞれ繰り出された種子と粒状薬剤とが、順に吐出され、その後を覆土板10が進行して土をかぶせ、更に、その上を鎮圧ローラ14が転動して播種・薬剤散布された部分を押圧することができ、播種作業と薬剤散布作業を同時に行うことができる。   In such a configuration, when the operator operates the handle 11 and pushes the human power seeder 25 in the direction of the forward arrow 28, the grooving device 7 behind the driving wheel 2 advances on the field 36. Thus, a seeding groove is formed, and seeds and granular medicines respectively fed from a seed feeding machine 26 and a medicine feeding machine 27 driven by the driving wheel 2 are sequentially discharged into the sowing groove, and then the soil is covered with soil. The plate 10 advances and covers the soil, and the pressure roller 14 rolls on the plate 10 so as to press the seeded / sprayed portion, so that the seeding operation and the chemical spraying operation can be performed simultaneously.

次に、本発明に係わる前記薬剤繰出機27について、図2、図3により説明する。薬剤繰出機27は、粒状薬剤46を蓄えるホッパー47と、粒状薬剤46を所定量だけ繰り出す繰出装置48とから構成される。このうちのホッパー47は内部が見えるように透明部材にて構成されると共に、ホッパー47は、上面が蓋体19にて覆われたホッパー本体部47aと、該ホッパー本体部47aより下方にあって繰出装置48の一部を構成する上繰出ケース部47bとから構成される。   Next, the medicine feeder 27 according to the present invention will be described with reference to FIGS. The medicine feeding machine 27 includes a hopper 47 that stores the granular medicine 46 and a feeding device 48 that feeds the granular medicine 46 by a predetermined amount. Of these, the hopper 47 is made of a transparent member so that the inside can be seen. The hopper 47 has a hopper main body 47a whose upper surface is covered by the lid 19 and a lower part than the hopper main body 47a. An upper feeding case portion 47b constituting a part of the feeding device 48 is configured.

該上繰出ケース部47bは、前記繰出ロール45を斜めに略二分するように形成されており、この上繰出ケース部47bの下面に嵌合するようにして下繰出ケース21が構成されている。一方、上繰出ケース部47bの下部は開口された上で、該上繰出ケース部47bと前記下繰出ケース21との接合部の下端には嵌合凹部47cが形成されている。   The upper feeding case portion 47b is formed so as to bisect the feeding roll 45 obliquely, and the lower feeding case 21 is configured so as to be fitted to the lower surface of the upper feeding case portion 47b. On the other hand, the lower portion of the upper feeding case portion 47b is opened, and a fitting recess 47c is formed at the lower end of the joint portion between the upper feeding case portion 47b and the lower feeding case 21.

そして、該嵌合凹部47cよりも上部には、繰出ロール45の駆動軸44を挿入するための軸孔47dが形成され、該軸孔47dよりも更に上部にある取付部47hには、ブラシ16が蝶ネジ17によって締結固定されている。そして、該ブラシ16よりも更に上部の取付部47hには、下繰出ケース21を上繰出ケース部47bに締結するためのネジ孔47eが開口されている。   A shaft hole 47d for inserting the drive shaft 44 of the feeding roll 45 is formed above the fitting recess 47c, and the brush 16 is provided on the mounting portion 47h further above the shaft hole 47d. Is fastened and fixed by a thumbscrew 17. A screw hole 47e for fastening the lower feeding case 21 to the upper feeding case portion 47b is opened in the mounting portion 47h further above the brush 16.

また、前記繰出ロール45を前記上繰出ケース部47bの開口部47fに嵌入した状態で、前記駆動軸44を側面から軸孔47dを貫通して繰出ロール45内に挿入し、繰出ロール45を上繰出ケース部47bに軸支するようにしている。そして、前記ブラシ16の刷毛部16aは、繰出ロール45に向かって延出され、該繰出ロール45上部の外周面45bと接触しており、該外周面45bに形成された複数の凹部45aに嵌入しきれないままで搬送されてきた余分な粒状薬剤46を、前記ブラシ16によって堰き止めたり除去したりできるように構成している。   Further, with the feeding roll 45 fitted into the opening 47f of the upper feeding case 47b, the drive shaft 44 is inserted into the feeding roll 45 from the side through the shaft hole 47d, and the feeding roll 45 is moved upward. The feeding case 47b is pivotally supported. The brush portion 16a of the brush 16 extends toward the feeding roll 45, is in contact with the outer peripheral surface 45b of the upper portion of the feeding roll 45, and is fitted into a plurality of recesses 45a formed on the outer peripheral surface 45b. The extra granular medicine 46 which has been transported without being able to be squeezed can be blocked or removed by the brush 16.

前記下繰出ケース21の後部には、前記嵌合凹部47cを嵌合して支持する支持軸21aが形成される一方、下繰出ケース21の前面からは、前記支持ステー5に固定するための支持部21bが突出され、更に、下繰出ケース21の上部には、前記ネジ孔47eと同軸上にネジ孔21cが形成されており、これにより、前記支持軸21aを嵌合凹部47cに嵌合させた上で、蝶ネジ18のネジ部18aをネジ孔21c・47eに螺挿することによって、下繰出ケース21を上繰出ケース部47bに締結固定できるようにしている。   A support shaft 21 a that fits and supports the fitting recess 47 c is formed at the rear portion of the lower feeding case 21, while a support for fixing to the support stay 5 from the front surface of the lower feeding case 21. The part 21b protrudes, and a screw hole 21c is formed coaxially with the screw hole 47e in the upper part of the lower feeding case 21, thereby fitting the support shaft 21a into the fitting recess 47c. In addition, by screwing the screw portion 18a of the thumbscrew 18 into the screw holes 21c and 47e, the lower feeding case 21 can be fastened and fixed to the upper feeding case portion 47b.

ここで、前記下繰出ケース21の内側下部には固定部21dが形成され、該固定部21dに薬剤検知センサー23が固定されており、該薬剤検知センサー23は、粒状薬剤46が落下してきた時に信号を発し、前記制御ボックス12内で警告音を鳴らすようにして、粒状薬剤46の詰まり等を検知するようにしている。   Here, a fixing portion 21d is formed at the inner lower portion of the lower feeding case 21, and a medicine detection sensor 23 is fixed to the fixing portion 21d. The medicine detection sensor 23 is used when the granular medicine 46 has dropped. A signal is emitted to sound a warning sound in the control box 12 so as to detect clogging of the granular medicine 46 and the like.

更に、下繰出ケース21内側の上部には、係合凹部21eが形成され、該係合凹部21eにはガイド板22を挿入して固定できるようにし、ネジ止めすることなくガイド板22を容易に着脱できるようにしている。そして、該ガイド板22と前記繰出ロール45の外周面45bとの隙間は、上部のホッパー47側が最も広く、落下側にいくに従って徐々に狭くなるように調整されており、粒状薬剤46がガイド板22によって少しずつ凹部45aに押し込まれるようにしている。そして、前記ブラシ16を挟んでガイド板22と反対方向に、本発明に係わる保護板20が配設されている。   Furthermore, an engagement recess 21e is formed in the upper part inside the lower feeding case 21, and the guide plate 22 can be inserted and fixed in the engagement recess 21e, so that the guide plate 22 can be easily fixed without screwing. It is designed to be removable. The gap between the guide plate 22 and the outer peripheral surface 45b of the feeding roll 45 is adjusted to be widest on the upper hopper 47 side and gradually narrower toward the dropping side. 22 is gradually pushed into the recess 45a. A protective plate 20 according to the present invention is disposed in a direction opposite to the guide plate 22 with the brush 16 in between.

なお、前記ガイド板22の内側面には、必要に応じて起毛材を貼設することができ、該起毛材によって、ガイド板22と外周面45bとの間の摩擦が低減され、回転速度の減少や変動が抑制されて粒状薬剤46の繰出量が略一定となり、圃場36への粒状薬剤46の供給精度を高めることができる。加えて、起毛材は、ガイド板22と外周面45bとの間に挟まった粒状薬剤46を前記凹部45aに押し込む際の滑材としても作用し、挟まった粒状薬剤46を凹部45a内に円滑に嵌入させることができる。   In addition, a brushed material can be attached to the inner side surface of the guide plate 22 as necessary, and the brushed material reduces the friction between the guide plate 22 and the outer peripheral surface 45b, so that the rotational speed can be reduced. Reduction and fluctuation are suppressed, the amount of the granular drug 46 fed out becomes substantially constant, and the supply accuracy of the granular drug 46 to the field 36 can be increased. In addition, the raised material also acts as a sliding material when the granular drug 46 sandwiched between the guide plate 22 and the outer peripheral surface 45b is pushed into the recess 45a, and the sandwiched granular drug 46 is smoothly put into the recess 45a. Can be inserted.

以上のような構成において、前記繰出ロール45と、該繰出ロール45に周設されたガイド板22・ブラシ16・保護板20と、これらを収納する下繰出ケース21・上繰出ケース部47b等から前記繰出装置48が構成され、該繰出装置48はホッパー47内の下部空間49に連通されており、該下部空間49を介して、ホッパー本体部47aに蓄えられた粒状薬剤46が繰出装置48に供給されるようにしている。   In the configuration as described above, the feeding roll 45, the guide plate 22, the brush 16 and the protective plate 20 provided around the feeding roll 45, the lower feeding case 21, the upper feeding case portion 47b and the like for storing them. The feeding device 48 is configured, and the feeding device 48 is communicated with a lower space 49 in the hopper 47, and the granular medicine 46 stored in the hopper body 47 a is passed through the lower space 49 to the feeding device 48. To be supplied.

次に、前記保護板20について、図4、図5により説明する。この保護板20は、繰出ロール45の外周面45bに沿って湾曲した曲板状の保護部20aと、該保護部20aの前端20eに接続された平板状の支持部20bとから構成され、該支持部20bの先部には取付孔20dが開口されている。このうち支持部20bは、前記ブラシ16と取付部47hとの間に介設され、ブラシ16のネジ孔16bと前記取付孔20dを貫いて、蝶ネジ17のネジ部17aを取付部47hのネジ孔47gに螺挿することにより、保護板20をブラシ16と一緒に取付部47hに固定するようにしている。   Next, the protection plate 20 will be described with reference to FIGS. The protective plate 20 is composed of a curved plate-shaped protective portion 20a curved along the outer peripheral surface 45b of the feeding roll 45, and a flat plate-shaped support portion 20b connected to the front end 20e of the protective portion 20a. A mounting hole 20d is opened at the tip of the support portion 20b. Of these, the support portion 20b is interposed between the brush 16 and the mounting portion 47h, passes through the screw hole 16b of the brush 16 and the mounting hole 20d, and the screw portion 17a of the thumb screw 17 is screwed into the screw of the mounting portion 47h. The protective plate 20 is fixed to the mounting portion 47h together with the brush 16 by being screwed into the hole 47g.

そして、前記保護部20aにおいては、前記支持部20bに近い部分に略円形状の通過孔20cが開口され、該通過孔20cは、繰出ロール45の外周面45bに形成された凹部45aの開口径よりも大きく構成されている。これにより、繰出ロール45が回転して、凹部45aが通過孔20cの直下まで来ると、粒状薬剤46は、前記通過孔20cの縁部に邪魔されることなく凹部45a内に転がり入ることができる。   And in the said protection part 20a, the substantially circular shaped passage hole 20c is opened by the part near the said support part 20b, and this passage hole 20c is the opening diameter of the recessed part 45a formed in the outer peripheral surface 45b of the delivery roll 45. It is configured larger than. Thereby, when the feeding roll 45 rotates and the concave portion 45a comes to just below the passage hole 20c, the granular medicine 46 can roll into the concave portion 45a without being obstructed by the edge of the passage hole 20c. .

この場合、通過孔20cの開口位置に関しては、通過孔20c内で繰出ロール45の回転方向51後側に位置する通過孔後部20fが、繰出ロール45の軸心45cの略直上位置50、または該略直上位置50よりも回転方向51前側となるように構成されている。これにより、凹部45aの縁45dで回転方向51後側の高さは、外周面45bと保護部20aとの隙間の入口52の高さに対して、略同等か或いは低く設定することができ、たとえ、小さい粒状薬剤46やその粉片等(以下、「小粒状薬剤等」とする)が凹部45a内に多量に流入しても、縁45dから入口52を通って外周面45bと保護部20aとの隙間に落ち込むことがない。 In this case, with respect to the opening position of the passage hole 20c, the passage hole rear portion 20f located on the rear side in the rotation direction 51 of the feeding roll 45 in the passage hole 20c is positioned substantially directly above the shaft center 45c of the feeding roll 45, or It is configured to be on the front side in the rotational direction 51 with respect to the substantially directly above position 50. Thereby, the height of the rear side in the rotation direction 51 at the edge 45d of the recess 45a can be set to be substantially equal to or lower than the height of the entrance 52 of the gap between the outer peripheral surface 45b and the protection portion 20a. Even if a small amount of the granular drug 46 and its powder pieces (hereinafter referred to as “small granular drug etc.”) flow into the recess 45a in large quantities, the outer peripheral surface 45b and the protective portion 20a pass through the inlet 52 from the edge 45d. It does not fall into the gap.

更に、繰出ロール45が回転方向51に回転していくと、凹部45aに嵌入された粒状薬剤46は、凹部45a内に保持された状態で保護部20aの下を前端20eまで回動され、該前端20eに到達すると、凹部45a内に入りきれずに溢れていた小粒状薬剤等が、前記ブラシ16の刷毛部16aによって堰き止められ、それ以上搬送されないようにしている。更に、繰出ロール45が回転方向51に回転していくと、溢れた小粒状薬剤等が取り除かれた凹部45a内の粒状薬剤46は、ガイド板22の内側面によって繰出ロール45側に押し付けられ、凹部45a内に保持された状態で所定の落下部まで搬送されてから、圃場36に落とされる。   Further, when the feeding roll 45 rotates in the rotation direction 51, the granular medicine 46 fitted in the recess 45a is rotated to the front end 20e under the protective part 20a while being held in the recess 45a, When reaching the front end 20e, the small granular medicine or the like overflowing without entering the recess 45a is blocked by the brush portion 16a of the brush 16 so that it is not further conveyed. Further, when the feeding roll 45 rotates in the rotation direction 51, the granular drug 46 in the recess 45a from which the overflowing small granular drug or the like has been removed is pressed against the feeding roll 45 side by the inner surface of the guide plate 22. After being transported to a predetermined dropping part while being held in the recess 45 a, it is dropped onto the field 36.

これにより、前記繰出ロール45の外周面45bで前記下部空間49に面した露出部分は、通過孔20cの直下部を除き、その大部分を保護板20の保護部20aによって覆うことができ、回転する外周面45bが硬い粒状薬剤46に直接接触して激しく擦過されるのを十分に抑制することができる。   As a result, most of the exposed portion facing the lower space 49 on the outer peripheral surface 45b of the feeding roll 45 can be covered with the protective portion 20a of the protective plate 20 except for the portion directly below the passage hole 20c. It is possible to sufficiently prevent the outer peripheral surface 45b from being in direct contact with the hard granular medicine 46 and being rubbed vigorously.

すなわち、粒状物(46)を蓄えるホッパー(47)と、該ホッパー(47)内の下部空間に連通する繰出装置(48)とを有し、該繰出装置(48)には、外周面に前記粒状物(46)を嵌入可能な凹部(45a)を形成した繰出ロール(45)を設け、該繰出ロール(45)の回転とともに前記凹部(45a)内の粒状物(46)を下方に搬送する粒状物繰出機(27)において、前記繰出ロール(45)外周面で、前記ホッパー(47)の下部空間(49)への露出部分には保護板(20)を周設し、該保護板(20)は繰出ロール(45)の外周面(45b)に沿って湾曲した形状で繰出ロール(45)の損傷を防止する保護部材(20a )と、該保護部材(20a )の前端(20e)に接続された平板状の支持部(20b)とから構成し、該保護部材(20a )には、前記凹部(45a)の開口径よりも大きく前記粒状物(46)が嵌入可能な通過孔(20c)を設け、該支持部(20b)には、前記ホッパー(47)のネジ孔(47g)に固定する為の取付孔(20d)を穿設し、該通過孔(20c)内で繰出ロール(45)の回転方向(51)の後側に位置する通過孔後部(20f)を、繰出ロール(45)の軸心略直上位置、または該軸心略直上位置よりも繰出ロール(45)の回転方向(51)前側に設けたので、該保護部20aを繰出ロール45の外周面45bと粒状薬剤46との間に介設することができ、表面の硬い粒状薬剤46を使用する場合でも、繰出ロール45の外周面45bのうち前記粒状薬剤46に直接接触する部分を減少させ、硬い粒状薬剤46の擦過による外周面45bの損傷を大きく軽減することができ、これにより、ロール交換が少なくなってメンテナンスコストを大きく低減させることができる。しかも、繰出ロール45の外周面45bが滑らかに維持されることから、前記保護部20aの先にガイド板22を備える場合には、該ガイド板22と前記外周面45bとの隙間を適正に調節することができ、粒状薬剤46がロール回転途中で落下しないようにして、粒状薬剤46を所定の落下部まで確実に保持・搬送して圃場への粒状薬剤46の供給精度を向上させることができる。更に、凹部45aの開口径よりも大きい通過孔20cを形成するだけで、複雑な構造を設けることなく凹部45aへの粒状薬剤46の嵌入を円滑に行うことができ、繰出ロール保護構造の簡素化による製造コストの低減とメンテナンス性の向上を図ることができる。しかも、通過孔後部20fの位置を適正化することにより、小粒状薬剤等が繰出ロール45の凹部45aの縁45dから外周面45bと保護部20aとの隙間に落ち込むのを確実に防止して、小粒状薬剤等の擦過による外周面45bの損傷までも軽減することができ、一層の、ロール交換頻度の減少によるメンテナンスコストの低減や、粒状薬剤46の供給精度の向上を図ることができる。 That is, it has a hopper (47) for storing the particulate matter (46) and a feeding device (48) communicating with the lower space in the hopper (47). The feeding device (48) A feeding roll (45) in which a concave portion (45a) into which the granular material (46) can be fitted is provided, and the granular material (46) in the concave portion (45a) is conveyed downward along with the rotation of the feeding roll (45). In the granular material feeding machine (27), a protective plate (20) is provided around the outer peripheral surface of the feeding roll (45) and exposed to the lower space (49) of the hopper (47). 20) has a shape curved along the outer peripheral surface (45b) of the feeding roll (45), a protective member (20a) for preventing the feeding roll (45) from being damaged, and a front end (20e) of the protective member (20a). It consists of a connected flat plate-like support part (20b). The protective member (20a) is provided with a through hole (20c) larger than the opening diameter of the recess (45a) into which the granular material (46) can be fitted, and the support portion (20b) A mounting hole (20d) for fixing to the screw hole (47g) of the hopper (47) is formed, and is positioned behind the rotation direction (51) of the feeding roll (45) in the passage hole (20c). Since the rear portion (20f) of the passing hole is provided at a position substantially immediately above the axial center of the feeding roll (45) or at a front side in the rotational direction (51) of the feeding roll (45) from the position substantially directly above the axial center, 20a can be interposed between the outer peripheral surface 45b of the feeding roll 45 and the granular drug 46, and even when the granular drug 46 having a hard surface is used, the granular drug 46 is included in the outer peripheral surface 45b of the feeding roll 45. Reduces direct contact and hard granular drug 46 Can be greatly reduced damage of the outer peripheral surface 45b by abrasion, which makes it possible to greatly reduce the maintenance costs roll replacement is low. In addition, since the outer peripheral surface 45b of the feeding roll 45 is maintained smoothly, when the guide plate 22 is provided at the tip of the protective portion 20a, the gap between the guide plate 22 and the outer peripheral surface 45b is adjusted appropriately. It is possible to improve the supply accuracy of the granular medicine 46 to the field by reliably holding and transporting the granular medicine 46 to a predetermined dropping portion so that the granular medicine 46 does not fall during the roll rotation. . Furthermore, it is possible to smoothly insert the granular medicine 46 into the recess 45a without providing a complicated structure simply by forming the passage hole 20c larger than the opening diameter of the recess 45a, and simplify the feeding roll protection structure. The manufacturing cost can be reduced and the maintainability can be improved. Moreover, by optimizing the position of the passage hole rear portion 20f, it is possible to reliably prevent the small granular medicine or the like from falling into the gap between the outer peripheral surface 45b and the protective portion 20a from the edge 45d of the recess 45a of the feeding roll 45, It is possible to reduce damage to the outer peripheral surface 45b due to rubbing of a small granular medicine, etc., further reducing the maintenance cost by reducing the roll replacement frequency and improving the supply accuracy of the granular medicine 46.

次に、保護板の別形態について、図6により説明する。この保護板40は、前記略円形状の通過孔20cの代わりに、繰出ロール45の回転方向51に沿って長い長孔形状の通過孔40cを開口したものである。   Next, another embodiment of the protective plate will be described with reference to FIG. The protective plate 40 is formed by opening a long hole-shaped passage hole 40 c along the rotation direction 51 of the feeding roll 45 instead of the substantially circular passage hole 20 c.

保護板40は、前記保護板20と同様に、繰出ロール45の外周面45bに沿って湾曲した曲板状の保護部40aと、該保護部40aの前端40eに接続された平板状の支持部40bとから構成され、該支持部40bの前部には取付孔40dが開口されており、該取付孔40dを介して、保護板40は前記蝶ネジ17によって取付部47hに固定される。   Similarly to the protection plate 20, the protection plate 40 includes a curved plate-shaped protection portion 40a curved along the outer peripheral surface 45b of the feeding roll 45, and a flat plate-like support portion connected to the front end 40e of the protection portion 40a. 40b, and an attachment hole 40d is opened at the front of the support portion 40b. The protective plate 40 is fixed to the attachment portion 47h by the thumbscrew 17 through the attachment hole 40d.

そして、前記保護部40aに前述した長孔形状の通過孔40cが開口され、該通過孔40cは、繰出ロール45の外周面45bに形成された凹部45aの開口径に比べて、幅・長さともに大きく構成されている。これにより、繰出ロール45が回転して、凹部45aが通過孔40cの直下まで来ると、粒状薬剤46は、前記通過孔40cの縁部に邪魔されることなく凹部45a内に転がり入ることができる。この場合も、前記通過孔20cと同様に、通過孔40c内で繰出ロール45の回転方向51後側に位置する通過孔後部40fは、繰出ロール45の軸心45cの略直上位置50、または該略直上位置50よりも回転方向51後側となるように構成されている。   The above-described long hole-shaped passage hole 40c is opened in the protection part 40a, and the passage hole 40c has a width / length that is larger than the opening diameter of the recess 45a formed in the outer peripheral surface 45b of the feeding roll 45. Both are large. Thereby, when the feeding roll 45 rotates and the concave portion 45a comes to just below the passage hole 40c, the granular medicine 46 can roll into the concave portion 45a without being obstructed by the edge of the passage hole 40c. . Also in this case, similarly to the passage hole 20c, the passage hole rear portion 40f located on the rear side in the rotation direction 51 of the feeding roll 45 in the passage hole 40c is located at a position 50 immediately above the axis 45c of the feeding roll 45, or It is configured to be on the rear side in the rotation direction 51 with respect to the substantially directly above position 50.

更に、この通過孔40c内で繰出ロール45の回転方向51の通過孔前部40gは、前記支持部40bまで延設されてブラシ16の刷毛部16aにまで達している。これにより、凹部45aの上方は前端40eまでの長い区間にわたって開放状態にあるため、粒状薬剤46に凹部45aへの嵌入と離脱を繰り返させることができ、粒状薬剤46を凹部45a内に隙間無く充填することができる。しかも、前端40eから外周面45bとガイド板22との隙間に入り込もうとする小粒状薬剤等を、前記刷毛部16aによって堰き止めた上で、更に、刷毛部16aの弾性力によって通過孔前部40gから外方に掃き出すことができるようにしている。   Further, in the passage hole 40c, the passage hole front part 40g in the rotation direction 51 of the feeding roll 45 extends to the support part 40b and reaches the brush part 16a of the brush 16. Thereby, since the upper part of the recess 45a is in an open state over a long section up to the front end 40e, the granular drug 46 can be repeatedly inserted into and removed from the recess 45a, and the granular drug 46 is filled in the recess 45a without a gap. can do. In addition, the small granular medicine or the like which tries to enter the gap between the outer peripheral surface 45b and the guide plate 22 from the front end 40e is blocked by the brush portion 16a, and further, the passage hole front portion 40g by the elastic force of the brush portion 16a. So that it can be swept away from the outside.

すなわち、前記通過孔40cは、繰出ロール45の回転方向51に沿って長い長孔形状とするので、凹部45aへの粒状物である粒状薬剤46の嵌入と凹部45aからの余分な粒状薬剤46の離脱が可能な区間を長く確保することができ、凹部45aへの粒状薬剤46の充填密度を高めると共に、余分な粒状薬剤46を確実に離脱させることができる。   That is, the passage hole 40c has a long hole shape along the rotation direction 51 of the feeding roll 45, so that the granular drug 46, which is a granular material, is fitted into the concave part 45a and the extra granular drug 46 from the concave part 45a. It is possible to secure a long section that can be detached, increase the packing density of the granular medicine 46 into the recess 45a, and reliably remove the excess granular medicine 46.

更に、前記繰出装置48には、前記通過孔40cから凹部45aに嵌入できない余分な粒状薬剤46等を除去するブラシ16を設け、該ブラシ16の刷毛部16aは、前記通過孔40c内で繰出ロール45の回転方向51に位置する通過孔前部40gまで延出させるので、該通過孔前部40gから、外周面45bと保護部40aとの隙間や、保護部40aの前方にガイド板22を備える場合には外周面45bとガイド板22との隙間に入り込もうとする小粒状薬剤等を、前記刷毛部16aによって確実に堰き止めると共に掃き出すことができ、小粒状薬剤等の擦過による外周面45bの損傷を一層確実に防止することができる。   Further, the feeding device 48 is provided with a brush 16 for removing excess granular medicine 46 and the like that cannot be fitted into the recess 45a from the passage hole 40c, and the brush portion 16a of the brush 16 is fed into the feeding roll in the passage hole 40c. 45, the guide plate 22 is provided in the clearance between the outer peripheral surface 45b and the protective portion 40a, or in front of the protective portion 40a, from the through hole front portion 40g. In such a case, the small granular medicine or the like which is about to enter the gap between the outer peripheral surface 45b and the guide plate 22 can be reliably dammed and swept out by the brush portion 16a, and the outer peripheral surface 45b is damaged by rubbing the small granular medicine or the like. Can be more reliably prevented.

なお、前記種子繰出機26についても、以上述べた薬剤繰出機27と略同じ構成から成るものであるが、種子は一般に柔らかいため、種子による繰出ロール15の損傷が特に心配されない場合には、前述した保護板20・40は省くことができる。   The seed feeder 26 has substantially the same configuration as the above-described medicine feeder 27. However, since the seed is generally soft, if the seed roll 15 is not particularly damaged, the above-described seed feeder 26 is the same as that described above. The protective plates 20 and 40 can be omitted.

本発明は、繰出装置内に設けた回転する繰出ロールの外周面が、ホッパーからの硬い粒状物の擦過によって損傷を受ける、人力用、管理機用、トラクタ用等の全ての繰出装置に適用することができる。   The present invention is applied to all feeding devices for manpower, for management machines, for tractors, etc., in which the outer peripheral surface of a rotating feeding roll provided in the feeding device is damaged by abrasion of hard granular material from the hopper. be able to.

本発明に関わる人力播種機の全体構成を示す全体側面図である。It is a whole side view which shows the whole structure of the manual seeding machine in connection with this invention. 同じく平面一部断面図である。It is a plane partial sectional view similarly. 薬剤繰出機の側面一部断面図である。It is side surface partial sectional drawing of a chemical | medical agent delivery machine. 保護板の取付構成を示す繰出ロール周辺の側面一部断面図である。It is side surface partial sectional drawing of the feeding roll periphery which shows the attachment structure of a protection plate. 円形状の通過孔を有する保護板の側面断面図とその斜視図であって、(a)は円形状の通過孔を有する保護板の側面断面図、(b)は(a)の矢印53の方向から見た保護板の斜視図である。It is side surface sectional drawing and its perspective view of a protection board which has a circular shaped passage hole, (a) is a side sectional view of a protection board which has a circle shaped passage hole, and (b) is an arrow 53 of (a). It is a perspective view of the protection board seen from the direction. 長孔形状の通過孔を有する保護板の側面断面図とその斜視図であって、(a)は長孔形状の通過孔を有する保護板の側面断面図、(b)は(a)の矢印54の方向から見た保護板の斜視図である。It is side surface sectional drawing and its perspective view of a protection board which has a long hole shape passage hole, and (a) is a side surface sectional view of a protection board which has a long hole shape passage hole, and (b) is an arrow of (a). It is a perspective view of the protection board seen from the direction of 54. FIG.

16 ブラシ
16a 刷毛部
20a 保護部材
20c・40c 通過孔
20f・40f 通過孔後部
27 粒状物繰出機
40g 通過孔前部
45 繰出ロール
45a 凹部
45b 外周面
45c 軸心
46 粒状物
47 ホッパー
48 繰出装置
49 下部空間
50 略直上位置
51 回転方向
16 Brush 16a Brush part
20a Protection member 20c / 40c Passing hole
20f, 40f Passing hole rear part 27 Granules feeding machine
40g through hole front
45 Feeding roll
45a recess
45b Outer peripheral surface
45c shaft center 46 granular material 47 hopper 48 feeding device
49 Lower space 50 Position just above 51 Rotation direction

Claims (3)

粒状物(46)を蓄えるホッパー(47)と、該ホッパー(47)内の下部空間に連通する繰出装置(48)とを有し、該繰出装置(48)には、外周面に前記粒状物(46)を嵌入可能な凹部(45a)を形成した繰出ロール(45)を設け、該繰出ロール(45)の回転とともに前記凹部(45a)内の粒状物(46)を下方に搬送する粒状物繰出機(27)において、前記繰出ロール(45)外周面で、前記ホッパー(47)の下部空間(49)への露出部分には保護板(20)を周設し、該保護板(20)は繰出ロール(45)の外周面(45b)に沿って湾曲した形状で繰出ロール(45)の損傷を防止する保護部材(20a )と、該保護部材(20a )の前端(20e)に接続された平板状の支持部(20b)とから構成し、該保護部材(20a )には、前記凹部(45a)の開口径よりも大きく前記粒状物(46)が嵌入可能な通過孔(20c)を設け、該支持部(20b)には、前記ホッパー(47)のネジ孔(47g)に固定する為の取付孔(20d)を穿設し、該通過孔(20c)内で繰出ロール(45)の回転方向(51)の後側に位置する通過孔後部(20f)を、繰出ロール(45)の軸心略直上位置、または該軸心略直上位置よりも繰出ロール(45)の回転方向(51)前側に設けたことを特徴とする粒状物繰出機。 A hopper (47) for storing the particulate matter (46) and a feeding device (48) communicating with the lower space in the hopper (47). The feeding device (48) includes the particulate matter on an outer peripheral surface. Granules provided with a feeding roll (45) formed with a recess (45a) into which (46) can be inserted, and conveying the granule (46) in the recess (45a) downward as the feeding roll (45) rotates. In the feeding machine (27), a protective plate (20) is provided around the outer peripheral surface of the feeding roll (45) and exposed to the lower space (49) of the hopper (47), and the protective plate (20) Is connected to the protective member (20a) which prevents the feeding roll (45) from being damaged in a curved shape along the outer peripheral surface (45b) of the feeding roll (45) and the front end (20e) of the protective member (20a). And a flat plate-like support portion (20b). The protective member (20a) is provided with a through hole (20c) into which the granular material (46) can be fitted larger than the opening diameter of the recess (45a), and the support portion (20b) has the hopper (47). The mounting hole (20d) for fixing to the screw hole (47g) is formed, and the passage hole rear portion located on the rear side in the rotation direction (51) of the feeding roll (45) in the passage hole (20c) The granular material feeding machine characterized in that (20f) is provided at a position substantially immediately above the axial center of the feeding roll (45) or at a front side in the rotational direction (51) of the feeding roll (45) with respect to the position just above the axial center. . 請求項1記載の粒状物繰出機において、前記繰出装置(48)には、前記通過孔(20c)から凹部に嵌入できない余分な粒状物等を除去するブラシ(16)を、前記保護板(20)の回転方向(51)前部側に配置し、該ブラシ(16)にはネジ孔(16b)を穿設し、前記保護板(20)の支持部(20b)の取付孔(20d)に挿入したネジ(17)により、ホッパー(47)のネジ孔(47g)に固定することを特徴とする粒状物繰出機。   2. The granular material feeding machine according to claim 1, wherein the feeding device (48) includes a brush (16) for removing extra granular material that cannot be fitted into the recesses from the passage hole (20c), and the protection plate (20). ) In the rotation direction (51) front side, the brush (16) is provided with a screw hole (16b), and is attached to the mounting hole (20d) of the support portion (20b) of the protective plate (20). A granular material feeding machine characterized by being fixed to a screw hole (47g) of a hopper (47) with an inserted screw (17). 請求項2記載の粒状物繰出機において、前記保護板(40)通過孔(40c)は、繰出ロール(45)の回転方向に沿って長い長孔形状に構成し、該通過孔(40c)内における繰出ロール(45)の回転方向(51)の通過孔前部(40g)は、前記保護板(40)の支持部(40b)まで延設され、該ブラシ(16)の刷毛部(16a)に至ることを特徴とする粒状物繰出機。   3. The granular material feeding machine according to claim 2, wherein the protective plate (40) passage hole (40 c) is formed in a long long hole shape along the rotation direction of the feeding roll (45), and the inside of the passage hole (40 c). The through hole front part (40g) in the rotation direction (51) of the feeding roll (45) in the above is extended to the support part (40b) of the protective plate (40), and the brush part (16a) of the brush (16). A granular material feeding machine characterized in that
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JP5362535B2 (en) * 2009-12-15 2013-12-11 株式会社タイショー Spraying device
JP2012200211A (en) * 2011-03-25 2012-10-22 Agritecno Yazaki Co Ltd Seeding machine
RU2540547C1 (en) * 2013-07-25 2015-02-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пензенская государственная сельскохозяйственная академия" Planting unit
CN108521915A (en) * 2018-06-06 2018-09-14 郑州慧合中赢科技有限公司 A kind of quick fertilizer apparatus in gardens

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KR20170128526A (en) * 2015-03-20 2017-11-22 얀마 가부시키가이샤 Feeder for agricultural machinery
KR102054569B1 (en) 2015-03-20 2019-12-10 얀마 가부시키가이샤 Transporting devices for agricultural machinery

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