JPS638453Y2 - - Google Patents

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Publication number
JPS638453Y2
JPS638453Y2 JP1982162842U JP16284282U JPS638453Y2 JP S638453 Y2 JPS638453 Y2 JP S638453Y2 JP 1982162842 U JP1982162842 U JP 1982162842U JP 16284282 U JP16284282 U JP 16284282U JP S638453 Y2 JPS638453 Y2 JP S638453Y2
Authority
JP
Japan
Prior art keywords
rice
net
slope
mangoku
adjustment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP1982162842U
Other languages
Japanese (ja)
Other versions
JPS5965787U (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP16284282U priority Critical patent/JPS5965787U/en
Publication of JPS5965787U publication Critical patent/JPS5965787U/en
Application granted granted Critical
Publication of JPS638453Y2 publication Critical patent/JPS638453Y2/ja
Granted legal-status Critical Current

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  • Adjustment And Processing Of Grains (AREA)
  • Measuring Volume Flow (AREA)
  • Combined Means For Separation Of Solids (AREA)

Description

【考案の詳細な説明】 本考案は、穀粒流れセンサを万石上網の網面上
に設けて、摺米の流れ模様を該センサで捉えて、
制御部と駆動部からなる自動制御装置に依つて機
体枠内に揺動自在に架設される万石上網の勾配自
動調節装置に関する。
[Detailed description of the invention] The present invention is based on a grain flow sensor that is installed on the net surface of the Mangokujo net, and the flow pattern of the rolled rice is captured by the sensor.
The present invention relates to an automatic slope adjustment device for a mangeki net that is swingably installed within a body frame by an automatic control device consisting of a control section and a drive section.

通常、万石式籾摺機では、選別性能並びに能率
を維持安定させる為にオペレーターは常に万石上
網の網上の摺米の流れ模様を監視すると同時に逐
次経験的に培われた目視判断基準に従つて万石上
網を勾配調節していた。しかし乍ら、この目視判
断には相当な熟練を必要とし、容易に会得できな
い難しさが伴うものであつた。然も万石上網の勾
配調節は摺米の性状あるいは脱率更には網目の
大小等の多くの要因に複雑且つ密接に関連する
為、たびたび変化する流下状況に応じた適切な処
置を機敏に施すことは至難であつた。又、従来機
として万石上網の勾配自動調節装置に供されてい
るものは、万石漏斗への摺米の溜り量並びに万石
上網への摺米の供給量に依つて万石上網の勾配が
いくらか緩急調節される。あるいは、予め手動操
作を施し万石上網の勾配が設定された上で摺米の
流下量が自動調節される。更に網上の摺米の淀み
を捉えて摺米の流れを円滑にすべく一時的に万石
上網が揺動する等の態様が見受けられるが、いず
れもオペレーター個々の力量に依存することは免
れず、万石上網の勾配調節の自動化は未だ為され
ていないのが実情である。そこで本考案では、上
記実情に鑑みて為されたもので、万石上網上を流
下する穀粒の淀み域の割合が所定量であるか否か
を検出しうる穀粒流れセンサを設け、その穀粒流
れセンサの検出結果により万石上網の勾配を自動
調節するに、上記穀粒センサ部分に摺米の流下が
ない場合には摺米が穀粒流れセンサまでにほとん
ど漏下したとして、上網勾配を急にする如く制御
することになるが、上網上へ摺米を供給する万石
漏斗の米調節シヤツターが閉鎖されている場合も
上記同様に上網を急勾配に調節することになる。
そこで、米調節シヤツターの開放を検出し、上網
勾配を自動調節する制御部を始動させるスイツチ
を設けて、高効率で選別性能を維持せしめ、逐次
摺米の流下状況に応じた適切な処置を俊敏に施す
ことを可能とした籾摺機の上網自動調節装置をこ
こに提供することを目的とする。
Normally, in the Mangoku-type rice huller, in order to maintain and stabilize the sorting performance and efficiency, the operator always monitors the flow pattern of the ground rice on the Mangoku net and at the same time uses the visual judgment criteria cultivated through experience. Therefore, the slope of the Mangokujo net was adjusted. However, this visual judgment requires considerable skill and is difficult to master. However, since the adjustment of the slope of the Mangokujo net is complex and closely related to many factors such as the properties of the rice to be suri-mai, the removal rate, and the size of the mesh, appropriate measures must be taken quickly in response to the frequently changing flow conditions. This was extremely difficult. In addition, the conventional machine that is used as an automatic slope adjustment device for the Mangokujo net adjusts the slope of the Mangokujo net depending on the amount of milled rice accumulated in the Mangoku funnel and the amount of polished rice supplied to the Mangokujo net. is adjusted somewhat. Alternatively, the slope of the tengoku upper screen is manually set in advance, and then the amount of flowing rice is automatically adjusted. Furthermore, there are cases where the mangoku-age net swings temporarily in order to catch the stagnation of the rolled rice on the net and smooth the flow of the rolled rice, but this does not depend on the skill of the individual operator. The reality is that the adjustment of the slope of the Mangokujo net has not yet been automated. Therefore, the present invention was developed in view of the above-mentioned circumstances, and includes a grain flow sensor that can detect whether or not the proportion of the stagnation area of grains flowing down the Mangoku upper net is a predetermined amount. The slope of the upper screen is automatically adjusted based on the detection result of the grain flow sensor, but if there is no flow of ground rice to the grain sensor part, it is assumed that most of the ground rice has leaked up to the grain flow sensor, and the slope of the upper screen is adjusted automatically based on the detection result of the grain flow sensor. The slope is controlled to be steep, but even if the rice adjustment shutter of the mangoku funnel that supplies the ground rice onto the upper screen is closed, the upper screen is adjusted to a steep slope in the same way as described above.
Therefore, we have installed a switch that detects the opening of the rice adjustment shutter and starts the control unit that automatically adjusts the slope of the upper screen, thereby maintaining highly efficient sorting performance and quickly taking appropriate measures according to the flow of the rice. The purpose of the present invention is to provide an automatic upper screen adjustment device for a rice huller that enables the use of rice hullers.

ここで、熟達したオペレーターの経験的な万石
上網の最適勾配の選定基準は、万石上網上の摺米
の流れ模様を上方より略7分目位を穀粒流下域と
し、残りの略3分目位を穀粒淀流下域とすること
にある。これは俗に「7分流れの3分淀み」と言
われるものである。そして、穀粒流下域では摺米
の流下速度が速く且つ粒層が薄く、穀粒淀流下域
では摺米の流下速度が遅く且つ粒層が厚いという
特徴を有している。
Here, the criteria for selecting the optimum slope of the Mangoku upper net based on the experience of experienced operators is that the flow pattern of the rolled rice on the Mangoku upper net should be approximately 7 minutes from the top as the grain flow area, and the remaining approximately 3 The purpose is to set the minute position as the lower grain stagnation area. This is commonly referred to as "a 7-minute flow followed by a 3-minute stagnation." In the region below the grain flow, the flow rate of the ground rice is fast and the grain layer is thin, and in the region below the grain flow, the flow speed of the ground rice is slow and the grain layer is thick.

以下本考案を図示の好適な実施例に基づいて説
明すると、第1図は概略側面説明図、第2図は万
石上網とその駆動機構を表わす斜視図、第3図は
ブロツク図である。
The present invention will be explained below based on the preferred embodiment shown in the drawings. Fig. 1 is a schematic side view, Fig. 2 is a perspective view showing the tread net and its driving mechanism, and Fig. 3 is a block diagram.

図において1は機体枠、2は万石漏斗で籾米と
玄米からなる摺米の万石上網3への流下供給を為
す。該上網3は木枠3c、網3d等からなり上記
機体枠1内に傾斜して配設される。そして上記機
体枠1外側には、検出回路21・21′と比較回
路22・22′と論理回路23・23′と制御回路
24によつて形成される制御部9aと、更に減速
機等を有して正逆回転自在なモーター等からなる
駆動部9bを擁して自動制御装置9が構成され
る。更に上記駆動部9bの駆動軸10には駆動杆
11が固着され、該杆11の自由端には連結駆動
杆12の一端が係架され、他端には機体枠1に軸
架される上網調節下軸14に固着されて、該下軸
14と共に回動可能な作動杆13の一端に係架さ
れる。そして上記下軸14の揺動側端部に依つて
上記上網3の下側が支持される。更に該作動杆1
3の他端には、機体枠1外側で傾斜する万石上網
3に沿つて傾斜して設けた上軸連結杆16を固着
し、該上軸連結杆16の上端部は上記上網3の上
方に位置して機体枠1に軸架される上網調節上軸
18の軸端に固着される上軸駆動杆17の自由端
に係架される。上記上軸18には上網支持金具1
9・19′が固着され該支持金具19・19′の先
端は木枠3cに装設される上網支持環3bを支架
して上記上網3の上側が支持される。
In the figure, 1 is a machine frame, and 2 is a mangoku funnel, which feeds milled rice consisting of unhulled rice and brown rice to the mangoku upper net 3. The upper net 3 is comprised of a wooden frame 3c, a net 3d, etc., and is arranged in an inclined manner within the body frame 1. On the outside of the fuselage frame 1, there is a control section 9a formed by detection circuits 21 and 21', comparison circuits 22 and 22', logic circuits 23 and 23', and a control circuit 24, as well as a reduction gear and the like. The automatic control device 9 includes a drive section 9b consisting of a motor or the like that can freely rotate in forward and reverse directions. Further, a drive rod 11 is fixed to the drive shaft 10 of the drive section 9b, one end of a connecting drive rod 12 is suspended from the free end of the rod 11, and an upper mesh that is pivoted on the fuselage frame 1 is suspended from the other end. It is fixed to the lower adjustment shaft 14 and suspended from one end of an operating rod 13 that is rotatable together with the lower adjustment shaft 14 . The lower side of the upper screen 3 is supported by the swing end of the lower shaft 14. Furthermore, the operating rod 1
An upper shaft connecting rod 16 is fixed to the other end of the upper shaft connecting rod 16, which is inclined along the upper net 3 that slopes on the outside of the fuselage frame 1. The upper net adjustment upper shaft 18 is mounted on the body frame 1 and is suspended from the free end of an upper shaft driving rod 17 fixed to the shaft end thereof. The upper shaft 18 has an upper mesh support fitting 1
9 and 19' are fixed, and the tips of the support fittings 19 and 19' support an upper net support ring 3b mounted on a wooden frame 3c, so that the upper side of the upper net 3 is supported.

次に上記上網3の網3d面上の穀粒淀流下域2
6と穀粒流下域27とにするべき位置に夫々回転
羽根15d、回転軸15eからなる穀粒流れセン
サ15a1・15a2が臨設され、該センサ15a1
15a2はセンサ支持部15bに装設され、センサ
取付台15cに依つて木枠3cに装着され、穀粒
流れ感知装置15を形成する。更に上記センサ1
5a1・15a2は接続コード20を介して上記制御
部9aへ信号出力をすべく為す。更に、上記万石
漏斗2に摺米の供給量を調節する米調節シヤツタ
ー25を設け、該米調節シヤツター25の開度
(摺米の規定供給量の有無)又は、少なくとも上
記シヤツター25の開閉を感知できるリミツトス
イツチ28を設け、該スイツチ28入力も上記制
御部9aに出力する。
Next, the grain stagnation lower region 2 on the net 3d surface of the upper net 3
Grain flow sensors 15a 1 and 15a 2, each consisting of a rotating blade 15d and a rotating shaft 15e, are provided at positions where the flow area 6 and the grain flow region 27 are to be formed, respectively.
15a 2 is installed on the sensor support part 15b and attached to the wooden frame 3c by means of the sensor mount 15c, forming the grain flow sensing device 15. Furthermore, the above sensor 1
5a 1 and 15a 2 are used to output signals to the control section 9a via the connection cord 20. Furthermore, a rice adjustment shutter 25 for adjusting the supply amount of ground rice is provided on the Mangoku funnel 2, and the opening degree of the rice adjustment shutter 25 (whether or not a specified amount of ground rice is supplied) or at least the opening/closing of the shutter 25 is controlled. A sensitive limit switch 28 is provided, the input of which is also output to the control section 9a.

尚、図中4は中・下網、5は返り籾コンベア、
6は混合米コンベア、7は仕上米コンベアであつ
て各コンベアの移送終端には夫々揚上装置が併設
される。又、8は唐箕、29はシヤツターレバー
である。
In addition, 4 in the figure is the middle and lower net, 5 is the turning paddy conveyor,
6 is a mixed rice conveyor, 7 is a finished rice conveyor, and a lifting device is provided at the transfer end of each conveyor. Also, 8 is a winch, and 29 is a shutter lever.

本考案は、以上の様に構成するから所定の操作
にて各部を作動せしめ籾米を図示しない脱装置
へ投入し風選別を経て万石漏斗2へ摺米を揚上
し、該万石漏斗2に必要量の摺米を貯留させた
後、シヤツタレバー29を機体枠1に指示された
位置まで操作すると、米調節シヤツター25は必
要量開き、万石上網の選別処理に最適な量の摺米
を供給する。この時、上記スイツチ28はシヤツ
ター25の動きを制御部9aに出力する。万石上
網3の網3dに供給され、流下する摺米中粒径の
大なる籾米等は網3d上を流下し、返り籾コンベ
ア5等を経て、脱装置へ環元され、摺米中粒径
の小なる玄米等は中・下網4へ漏下する。ここで
網3d上を流下する摺米は穀粒流れセンサ15
a1・15a2の回転羽根15dに衝突し乍ら流下
し、その回転羽根15dは摺米の流下速度に相応
して回転し、その回転数を逐次電気信号に変換し
て制御部9aへ出力する。該制御部9aでは、セ
ンサ15a1・15a2よりの電気信号、及び上記米
調節シヤツター25のマイクロスイツチ28より
の出力を、検出回路21・21′、比較回路2
2・22′、論理回路23・23′、制御回路24
により処理し、駆動部9bを制御する。制御部9
aにより制御された駆動部9bは、駆動軸10を
回動させ、駆動杆11を介して連結駆動杆12を
上下動せしめ、次いで作業杆13を回動させて、
上網調節下軸14を擺動させ、上記上網3の下側
を揺動させ、更に、上軸連結杆16が連動し上軸
駆動杆17が擺動し、上網調節上軸18が回動
し、上網支持金具19・19′が擺動して、上網
3の上側を揺動せしめることにより上網3勾配を
変更する。つまり、センサー15a1・15a2が共
に低回転(穀粒淀流下域26)を検出した時は上
網3を急勾配に制御し、共に高回転(穀粒流下域
27)を検出した時は緩勾配に制御する。上方の
センサー15a1が高回転、下方のセンサー15a2
が低回転を検出した時は上網3勾配を現状維持さ
せる。
Since the present invention is constructed as described above, the various parts are activated by predetermined operations, the unhulled rice is fed into the unillustrated removing device, and after wind sorting, the ground rice is lifted to the Mangoku Funnel 2. After storing the required amount of polished rice, when the shutter lever 29 is operated to the position indicated on the machine frame 1, the rice adjustment shutter 25 opens by the required amount, and the optimum amount of polished rice is stored for the sorting process on the Mangokujo. supply At this time, the switch 28 outputs the movement of the shutter 25 to the control section 9a. Large unhulled rice, etc., which is supplied to the net 3d of the Mangokujo net 3 and has a medium grain size, flows down the net 3d, passes through the returned paddy conveyor 5, etc., and is returned to the removal device, where the medium grain size of the unpolished rice, etc. Brown rice, etc. with a small diameter leaks into the middle/lower screen 4. Here, the ground rice flowing down on the net 3d is detected by the grain flow sensor 15.
The rotating blades 15d of a 1 and 15a 2 collide with each other and flow down, and the rotating blades 15d rotate in accordance with the falling speed of the rolled rice, and the rotational speed is sequentially converted into an electric signal and output to the control unit 9a. do. In the control section 9a, the electric signals from the sensors 15a 1 and 15a 2 and the output from the micro switch 28 of the rice adjustment shutter 25 are sent to the detection circuits 21 and 21' and the comparison circuit 2.
2/22', logic circuits 23/23', control circuit 24
and controls the drive section 9b. Control unit 9
The drive unit 9b controlled by a rotates the drive shaft 10, moves the connecting drive rod 12 up and down via the drive rod 11, and then rotates the work rod 13,
The upper screen adjustment lower shaft 14 is slid to swing the lower side of the upper screen 3, and the upper shaft connecting rod 16 is interlocked to cause the upper shaft drive rod 17 to slide, the upper screen adjustment upper shaft 18 is rotated, and the upper screen is adjusted. The support fittings 19 and 19' slide to swing the upper side of the upper screen 3, thereby changing the slope of the upper screen 3. In other words, when both sensors 15a 1 and 15a 2 detect low rotation (lower grain flow area 26), the upper mesh 3 is controlled to have a steep slope, and when both sensors 15a 1 and 15a 2 detect high rotation (lower grain flow area 27), the upper screen 3 is controlled to have a steep slope. Control the slope. Upper sensor 15a 1 is high rotation, lower sensor 15a 2
When detecting low rotation, the upper mesh 3 slope is maintained at its current state.

そこで、穀粒淀流下域26が上部のセンサー1
5a1上方まで拡大すると、両センサー15a1・1
5a2の回転が共に遅くなり、上網3は急勾配に調
節され、上部のセンサー15a1の回転が早くなつ
た時点で停止、維持される。又、穀粒淀流下域2
6が下部のセンサー15a2下方まで減少すると、
両センサー15a1・15a2の回転が共に早くな
り、上網3は緩勾配に調節されるが、米調節シヤ
ツター25が閉じている時は当然両センサー15
a1・15a2は回転しない。この時は、上網3は急
勾配に限界まで調節され、シヤツター25を開放
し、選別を行う時には常に最急勾配より開始する
ことになる。その為上記リミツトスイツチ28よ
り論理回路23・23′に働きかけてシヤツター
25が開放している時のみ、論理回路23・2
3′の機能を働かせて上網3の勾配を自動制御さ
せる。
Therefore, the grain stagnation flow lower region 26 is located at the upper sensor 1.
When zoomed in above 5a 1 , both sensors 15a 1・1
The rotation of the upper screen 5a 2 slows down, the upper screen 3 is adjusted to a steep slope, and is stopped and maintained when the rotation of the upper sensor 15a 1 becomes faster. Also, grain stagnation flow area 2
When 6 decreases to below the lower sensor 15a 2 ,
The rotation of both sensors 15a 1 and 15a 2 becomes faster, and the upper screen 3 is adjusted to a gentle slope. However, when the rice adjustment shutter 25 is closed, both sensors 15
a 1・15a 2 does not rotate. At this time, the upper screen 3 is adjusted to its steepest slope, and when the shutter 25 is opened and sorting is performed, it always starts from the steepest slope. Therefore, the limit switch 28 acts on the logic circuits 23 and 23', and only when the shutter 25 is open, the logic circuits 23 and 2
The function 3' is activated to automatically control the slope of the upper screen 3.

尚、第4図は、シヤツターレバー29の支軸で
あるレバー杆29aの一部29bに切欠き部を設
けて、該切欠き部にリミツトスイツチ28を臨設
させて、米調節シヤツター25の開閉を検出す
る。矢印は各部の動作方向を表わす。
In addition, in FIG. 4, a notch is provided in a part 29b of the lever rod 29a, which is the support shaft of the shutter lever 29, and a limit switch 28 is provided in the notch to open and close the adjustment shutter 25. To detect. Arrows indicate the direction of movement of each part.

以上、本考案に依れば万石上網上に設けた穀粒
流れセンサー等により穀粒流下域と穀粒淀流下域
の割合を一定にすることで、上網を最適勾配に自
動調節できるばかりか万石漏斗のシヤツターの開
閉を感知できるので、作業の中断等によりシヤツ
ターを閉じるのみで、作業終了時の上網勾配を維
持するに、他に何ら操作を必要とせず、次回作業
時には最適勾配が迅速且つ効果的に得られる利点
がある。
As described above, according to the present invention, by keeping the ratio of the lower grain flow area and the lower grain stagnation flow area constant using a grain flow sensor installed on the upper screen, it is possible to automatically adjust the upper screen to the optimal slope. Since it is possible to detect the opening and closing of the shutter of the Mangeki Funnel, all you have to do is close the shutter when work is interrupted, etc., and no other operation is required to maintain the upper net slope at the end of work, and the optimum slope can be quickly adjusted the next time you work. Moreover, there are advantages that can be obtained effectively.

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

図面は本考案の実施例を表わし、第1図は概略
側面説明図、第2図は万石上網並びに該上網の駆
動機構を表わす斜視図、第3図はブロツク図であ
る。第4図は他の実施例による要部斜視図であ
る。 図中、1……機体枠、2……万石漏斗、3……
万石上網、3a……下軸金具、3b……上網支持
環、3c……木枠、3d……網、9……自動制御
装置、15……穀粒流れ感知装置、15a1・15
a2……穀粒流れセンサー、20……接続コード、
21・21′……検出回路、22・22′……比較
回路、23・23′……論理回路、24……制御
回路、25……米調節シヤツター、28……リミ
ツトスイツチ。
The drawings show an embodiment of the present invention, and FIG. 1 is a schematic side view, FIG. 2 is a perspective view showing a mangeki upper net and a drive mechanism for the upper net, and FIG. 3 is a block diagram. FIG. 4 is a perspective view of main parts according to another embodiment. In the diagram, 1... fuselage frame, 2... mangoku funnel, 3...
Mangoku upper net, 3a...Lower shaft metal fitting, 3b...Upper net support ring, 3c...Wooden frame, 3d...Net, 9...Automatic control device, 15...Grain flow sensing device, 15a 1・15
a 2 ... Grain flow sensor, 20 ... Connection cord,
21, 21'...detection circuit, 22, 22'...comparison circuit, 23, 23'...logic circuit, 24...control circuit, 25...adjustment shutter, 28...limit switch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 制御部9aと駆動部9bからなる自動制御装置
9に連繋し、万石上網3上を流下する穀粒の淀み
域の割合が所定量であるか否かを検出しうる穀粒
流れセンサ15a1,15a2の働きで、万石上網3
勾配を自動調節する籾摺機に於て、上記上網3へ
摺米を供給する万石漏斗2の米調節シヤツター2
5の開閉を感知するスイツチ28を設け、該スイ
ツチ28と上記制御部9aを連繋し、米調節シヤ
ツター25が開放されている事に依つて上記自動
制御装置9を動作させることを特徴とした籾摺機
の万石上網自動調節装置。
A grain flow sensor 15a 1 is connected to an automatic control device 9 consisting of a control section 9a and a drive section 9b, and is capable of detecting whether the ratio of the stagnation area of grains flowing down on the mangoku upper net 3 is a predetermined amount. , 15a 2 , Mangoku Kamami 3
In a rice hulling machine that automatically adjusts the slope, a rice adjustment shutter 2 of a mangeki funnel 2 that supplies polished rice to the upper net 3.
5, the switch 28 is connected to the control section 9a, and the automatic control device 9 is operated depending on whether the rice adjustment shutter 25 is opened. Automatic adjustment device for the screen on the sliding machine.
JP16284282U 1982-10-26 1982-10-26 Automatic adjustment device for the mangoku upper net of the rice huller Granted JPS5965787U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16284282U JPS5965787U (en) 1982-10-26 1982-10-26 Automatic adjustment device for the mangoku upper net of the rice huller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16284282U JPS5965787U (en) 1982-10-26 1982-10-26 Automatic adjustment device for the mangoku upper net of the rice huller

Publications (2)

Publication Number Publication Date
JPS5965787U JPS5965787U (en) 1984-05-02
JPS638453Y2 true JPS638453Y2 (en) 1988-03-14

Family

ID=30357479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16284282U Granted JPS5965787U (en) 1982-10-26 1982-10-26 Automatic adjustment device for the mangoku upper net of the rice huller

Country Status (1)

Country Link
JP (1) JPS5965787U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS481257U (en) * 1971-06-02 1973-01-09

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591738Y2 (en) * 1979-04-27 1984-01-18 セイレイ工業株式会社 Automatic feed rate control device for paddy rough sorting machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS481257U (en) * 1971-06-02 1973-01-09

Also Published As

Publication number Publication date
JPS5965787U (en) 1984-05-02

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