公开(公告)号：JPH04370024A

公开(公告)日：1992-12-22

申请号：JP14431591

申请日：1991-06-17

Applicant: KUBOTA KK

Inventor： TAKAHARA KAZUHIRO ,  USUI KATSUYA ,  HAYASHI SHIGEKI ,  UEDA SUEZO ,  TOMINAGA TOSHIO ,  MIZOGUCHI TAKAO

IPC: A01F12/32 ,  A01F12/48

Abstract: PURPOSE:To carry out precise control over the throughput by regulating the throughput based on a correction computed value different from other grading modes in a grading mode with a grading mode selecting means. CONSTITUTION:The target value of a throughput of grader (B) is set according to the feed rate of grain culms to a threshing chamber (A). The correction arithmetic processing of the target value is preformed according to the thickness of a layer of substances to be treated on a shaking and grading plate 19. In at least one grading mode selected by a grading mode selecting means, the correction arithmetic processing different from other grading modes is carried out. Thereby, the grading accuracy can be prevented from unnecessarily deteriorating while preventing clogging according to the thickness of the layer of the substances to be treated in the grading mode in which a clogged state readily occurs.

公开(公告)号：JPH04365420A

公开(公告)日：1992-12-17

申请号：JP13738891

申请日：1991-06-10

Applicant: KUBOTA KK

Inventor： TOMINAGA TOSHIO

IPC: A01D61/00

Abstract: PURPOSE:To prevent delay of control of the threshing depth when cutting work is restarted by returning the conveyor to the original position using a position alternation unit even in the case of dropping of the conveyor in a state where cutting work is suspended. CONSTITUTION:When operation sensors (S1 and (S4 for detecting whether cutting work is carried out or not are in an off state (when cutting work is not carried out), the electric motor 11 is controlled by a controller (H) based on a signal of the position detection means (PM). The conveyor 8 is held to a position immediately before completion of a cutting work.

公开(公告)号：JPH04365419A

公开(公告)日：1992-12-17

申请号：JP13738791

申请日：1991-06-10

Applicant: KUBOTA KK

Inventor： TOMINAGA TOSHIO

IPC: A01D61/00 ,  A01D69/00

Abstract: PURPOSE:To prevent abrasion or deterioration observed when mechanically held at the lowest position by holding a conveyor at the upper limit position in a flexible state when cutting work is hot carried out. CONSTITUTION:When operation sensors (S3) and (S4) for detecting whether cutting work is carried out or not are in an off state (when cutting work is not carried out), the conveyor 8 is held at the upper limit position by driving an electric motor 11 using a controller (H). When the limit switch (LS1) is disconnected by dropping of the conveyor, the electric motor is driven. When the limit switch is connected, the electric motor is stopped.

公开(公告)号：JPH04293421A

公开(公告)日：1992-10-19

申请号：JP5984891

申请日：1991-03-25

Applicant: KUBOTA KK

Inventor： TAKAHARA KAZUHIRO ,  USUI KATSUYA ,  HAYASHI SHIGEKI ,  UEDA SUEZO ,  TOMINAGA TOSHIO ,  MIZOGUCHI TAKAO

IPC: A01D69/00 ,  A01F12/32 ,  A01F12/48

Abstract: PURPOSE:To justify the throughput capacity even when the supply of grains and culms is unknown by controlling the throughput capacity of a grader corresponding to the thickness of layers of crops to be treated on a vibration-grading plate if a detected value of the grain and culm supply to a threshing chamber is beyond a prescribed range. CONSTITUTION:When the supply of grains and culm is unknown, e.g. due to trouble in a unit for detection of the grain and culm supply capable of detecting the supply of grains and culms to a threshing chamber (A) or due to detachment thereof, the throughput capacity of a grader is controlled based on the thickness of crop layers to be treated on a vibration-grading plate 19.

公开(公告)号：JPH04222514A

公开(公告)日：1992-08-12

申请号：JP40472190

申请日：1990-12-21

Applicant: KUBOTA KK

Inventor： HAYASHI SHIGEKI ,  USUI KATSUYA ,  TAKAHARA KAZUHIRO ,  UEDA SUEZO ,  TOMINAGA TOSHIO ,  MIZOGUCHI TAKAO

IPC: A01F12/32

Abstract: PURPOSE:To properly dissolve a state of clogging without lowering the accuracy of separation too much by attaching a control unit capable of adjusting the capacity of a separator to a specified state according to the thickness of a layer of materials to be treated on a shaking sifter. CONSTITUTION:The thickness of a layer of materials to be treated on a shaking sifter 17 is monitored by a sieve sensor (S4). In case the thickness of the layer of materials to be treated is larger than a prescribed value, the capacity of a separator (B) is kept to a value larger by a prescribed value than that immediately before changing to that state. In case the thickness of the layer of materials to be treated continues to be kept to a value larger than a prescribed value for a prescribed time, the capacity of the separator (B) is kept to a value more larger by the prescribed value.

公开(公告)号：JPH04222513A

公开(公告)日：1992-08-12

申请号：JP40407190

申请日：1990-12-20

Applicant: KUBOTA KK

Inventor： HAYASHI SHIGEKI ,  USUI KATSUYA ,  TAKAHARA KAZUHIRO ,  UEDA SUEZO ,  TOMINAGA TOSHIO ,  MIZOGUCHI TAKAO

IPC: A01F12/32

Abstract: PURPOSE:To, in a state where clogging occurs or a state where a sign of clogging is shown, dissolve those states without fail by keeping the capacity of a separator to a prescribed capacity when the thickness of a layer of materials to be treated on a shaking sifter is larger than a prescribed value. CONSTITUTION:The thickness of a layer of materials to be treated on a shaking sifter 17 is monitored by a sieve sensor (S4). In case the thickness of the layer of materials to be treated is larger than a prescribed value, the capacity of a separator (B) is kept to a prescribed value. If the supply of grains and culms is reduced, the amount of the materials to be treated on the shaking sifter is reduced, thus enabling dissolution of the clogging state or avoidance of the state without fail.

公开(公告)号：JPH04183321A

公开(公告)日：1992-06-30

申请号：JP31211490

申请日：1990-11-16

Applicant: KUBOTA KK

Inventor： USUI KATSUYA ,  HAYASHI SHIGEKI ,  UEDA SUEZO ,  MIZOGUCHI TAKAO ,  TOMINAGA TOSHIO ,  TAKAHARA KAZUHIRO

IPC: A01F12/32

Abstract: PURPOSE:To maintain stabilized sieving motion performance by controlling chaff sieve so as to operate on open side when the detection amount of a sieve sensor becomes upper limit or above in prescribed range and so as to operate on closed side when the detection amount becomes lower limit or below. CONSTITUTION:A control device adapts average value of time longer than oscillating cycle of an oscillating and sorting plate 3 and the average value is obtained as detection value corresponding to thickness of layer of a treated material. When thickness of layer of the treated material becomes upper limit or above in preliminarily set range (insensitive band), chaff sieve 8 is operated on open side to increase the leak amount of the treated material. On the contrary, when thickness of layer of the treated material becomes lower limit or below of insensitive band, chaff sieve 8 is operated on the closed side to decrease the leak amount of the treated material. Thereby thickness of layer of the treated material can be kept nearly constant and stabilized sieve action performance can be maintained.

公开(公告)号：JPH0445713A

公开(公告)日：1992-02-14

申请号：JP15100590

申请日：1990-06-08

Applicant: KUBOTA KK

Inventor： HAYASHI SHIGEKI ,  KISHIDA HIROSHI ,  USUI KATSUYA ,  TOMINAGA TOSHIO

IPC: A01D61/00

Abstract: PURPOSE:To prevent insufficient threshing by using a controlling means for controlling a threshing-depth adjusting means and shifting the threshing-depth adjusting means to a deep-threshing side when a reaping part is operated to the lifting side. CONSTITUTION:A threshing-depth adjusting means C is controlled with a controlling means H to keep the threshing depth to a target level. When a reaping part is operated to the lifting side, the threshing-depth adjusting means C is shifted to a deep-threshing side by the controlling means H. Insufficient threshing does not take place even if the reaping operation is interrupted or finished while operating the reaping part to the lifting side.

公开(公告)号：JPH0432713A

公开(公告)日：1992-02-04

申请号：JP14059090

申请日：1990-05-29

Applicant: KUBOTA KK

Inventor： NAKA TAMAKI ,  USUI KATSUYA ,  TAKAHARA KAZUHIRO ,  HAYASHI SHIGEKI ,  ODA MAKOTO ,  UEDA SUEZO ,  MIZOGUCHI TAKAO ,  TOMINAGA TOSHIO

IPC: A01F12/32 ,  G01B21/22 ,  G01D5/249 ,  G01D5/36

Abstract: PURPOSE:To accurately detect a shift in the position of the external surface part of an object to be detected without any electric correction by changing plural kinds of combination of pieces of detection information of plural detection parts as a disk rotate. CONSTITUTION:A sensor which detects the position of the top surface of a straw layer is provided to arch metal 20 fixed to a receiving net 5. The sensor S consists of a contactor 21 which is provided while enabled to swing freely in the conveying direction of a processed body, a disk 22 which turns integrally around the same axis P with the contactor 21, and four optical pickup devices 24a - 24d which read whether or not slits 23a - 23d formed in the disk 22 are present or not from transmitted light, and connected to a controller H through four signal lines L1 - L4 connected to the devices 24a - 24d. Then the slits 23a - 23d change plural kinds of combination of pieces detection information of the devices 24a - 24d as the disk 22 rotates and the length in circumferential directions where plural kinds of combination appear is so set that the combinations change every time the position shift increases or decreases by a set quantity.

公开(公告)号：JPH0423918A

公开(公告)日：1992-01-28

申请号：JP12722390

申请日：1990-05-17

Applicant: KUBOTA KK

Inventor： USUI KATSUYA ,  UEDA SUEZO ,  TOMINAGA TOSHIO ,  MIZOGUCHI TAKAO ,  HAYASHI SHIGEKI

IPC: A01F12/32

Abstract: PURPOSE:To detect clogging of material to be treated between a chaff sieve and a straw rack by simple remodeling, by equipping a contact type sensor in such a state that the sensor has an action to detect thickness of a layer of material to be treated on a chaff sieve. CONSTITUTION:An oscillating and selecting plate 3 is equipped with a chaff sieve 8 which backward transports a material to be treated dropped from a receiving net 5 of a squeezing chamber A while oscillating and selecting and a straw rack 9 which backward transports the material to be treated discharged from a dust sending hole 6 at the rear of the receiving net 5 in a such a state as to position the straw rack 9 above the straw sieve 8 at an interval. A contact type sensor S to detect thickness of the layer of the material to be treated on the chaff sieve 8 is laid in such a state that the sensor detects the thickness of the layer of the material on the chaff sieve 8 corresponding to a position just before the straw rack 9. By this inexpensive and simple remodeling, clogging of the material to be treated between the chaff sieve and the straw rack can be detected.