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公开(公告)号：JPH08178065A
公开(公告)日：1996-07-12
申请号：JP32669394
申请日：1994-12-28
Applicant: KUBOTA KK
Inventor： YAMAGATA KOJI , IKEDA FUTOSHI , KATO KATSUHIDE , HIRATA KAZUYOSHI
Abstract: PURPOSE: To simply adjust the exciting force of a spring material by forming an exciting means returning an operation lever to the neutral position so that a shaft member is excited by the spring material via a spherical body protrudably inserted into an opening hole in the seated state on a recess. CONSTITUTION: A belt type continuously variable transmission is provided with a shift moving body 39 and a shift operation lever 38 switching the shift state. Whether the shift operation lever 38 is operated in the forward direction or the reverse direction is detected by a detection section 41, and the moving body 39 is driven by a driving device based on the detected information. The shift operation lever 38 is excited to the neutral position by an exciting means 42. A shaft member 37b storing a spring material 43 in an opening hole 44 and a screw member 45 provided with a conical recess 45a at the tip section are screwed to the shift operation lever 38 side and the shift moving body 39 side respectively to form the exciting means 42. The spring material 43 is pressed by the screw member 45 via the spherical body 47 seated on the recess 45a.
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公开(公告)号：JPH08156849A
公开(公告)日：1996-06-18
申请号：JP29919194
申请日：1994-12-02
Applicant: KUBOTA KK
Inventor： TAKENAKA MITSURU , YAMAGATA KOJI , IKEDA FUTOSHI
IPC: B62D55/088 , B62D55/14
Abstract: PURPOSE: To provide a crawler traveling device for an agricultural machine in which abrasion of an elastic cylinder can be prevented without causing any difficulty in assembly and durability of the elastic cylinder can be improved. CONSTITUTION: In an inner ring body 4b and an outer ring body 4a, which are formed into outward opening cup-shapes, in an external turning wheel type tread turning wheel 4, a base end part of an elastic cylinder 13 is fitted inside the outer ring body 4a and the elastic cylinder 13 is projected outward cantileveredly from the outer ring body 4a, and in an extension end part of a ring body fixing washer 8 mounted in an outer end part of a supporting shaft 7 supporting the outer ring body 4a, a shrunk diameter part 14 of the base end side inner circumference part of the elastic cylinder 13 is received and supported, while a fitting groove 15 formed radially in the base end side end edge part of the elastic cylinder 13 is fitted to a reinforcing rib 17 projected radially in a cup bottom inside face part 16 of the outer ring body 4a.
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公开(公告)号：JPH0837895A
公开(公告)日：1996-02-13
申请号：JP17655994
申请日：1994-07-28
Applicant: KUBOTA KK
Inventor： NAKA TAMAKI , HAYASHI SHIGEKI , HIRATA KAZUYOSHI , IKEDA FUTOSHI
Abstract: PURPOSE:To provide a lift for a working machine which can avoid disadvantage such as the contact of the working unit to other things, when the operation has finished in the operation process, as well as the safety is secured by avoiding an accidental lifting caused by operation mistake, while the machine does not work. CONSTITUTION:This lift for a working machine having a controller 18 for controlling the hydraulic cylinder 9 driving the working unit 5 is equipped with a stock sensor SO detecting whether the working unit is in working or not and with an automatic lift switch SW indicating the controller 18 to actuate. While the stock sensor SO is detecting whether the working unit is in working or not, and in a certain time set from the time when it is detected that the working unit stops working, actuation command is output by the automatic lifting switch SW and the controller 18 controls the hydraulic cylinder 9 to lift the working unit 5 to the target height.
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公开(公告)号：JPH07238834A
公开(公告)日：1995-09-12
申请号：JP2868994
申请日：1994-02-28
Applicant: KUBOTA KK
Inventor： OZAKI NORIMUNE , IKEDA FUTOSHI , YAMAGATA KOJI , HIRATA KAZUYOSHI , HAYASHI SHIGEKI
Abstract: PURPOSE:To let a change-over member be accurately suspended at its normal and reverse operating positions in the normal/reverse operation structure for the fan of a radiator where the change-over member of a belt transmission system for normal/reverse operating pulleys is so constituted that a changeover for the normal/reverse operations of the fan can be freely made with an electrically driven actuator actuated to normal/reverse operating positions. CONSTITUTION:A speed sensor 28 is provided, which detects the operating speed of a change-over member 16, based on a judgement that the change-over member 16 reaches a normal operation position or a reverse operation position when the detected valve of a speed sensor 28 is less than a specified value because of resistance by a belt transmission system 14 and 19, operating current is shut off, so that an electrically driven actuator is thereby suspended.
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公开(公告)号：JPH07224655A
公开(公告)日：1995-08-22
申请号：JP1416594
申请日：1994-02-08
Applicant: KUBOTA KK
Inventor： OZAKI NORIMUNE , IKEDA FUTOSHI , YAMAGATA KOJI , HIRATA KAZUYOSHI , HAYASHI SHIGEKI
Abstract: PURPOSE:To prevent any drop in the cooling efficiency of a radiator at the time of starting an engine in this normal/reverse rotation switching structure of a fan for a radiator constituted so that this radiator fan can be switched to a normally and reversely rotated state at a specified cycle automatically. CONSTITUTION:At the time of starting an engine 5, only during the first specified time, a fan 9 is in a reversely rotated weight, and then the fan 9 is operated in a normally and reversely rotated state at a specified cycle automatically.
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Patent Agency Ranking
公开(公告)号：JPH0767458A
公开(公告)日：1995-03-14
申请号：JP22083093
申请日：1993-09-06
Applicant: KUBOTA KK
Inventor： OZAKI NORIMUNE , HIRATA KAZUYOSHI , IKEDA FUTOSHI , FUKUOKA YOSHITAKE , OTANI TOSHIKATSU , YAMAGATA KOJI , SOYA TAMOTSU , HAYASHI SHIGEKI , TERAO SOTOKAZU
Abstract: PURPOSE:To provide a combine harvester suppressed in dust blow from a threshing chamber and noise generation, capable of preventing development of unthreshing, equipped with a residue sensor, etc., midway of grain culm conveying route. CONSTITUTION:Midway of grain culm conveying route for threshing operation, the following means are installed: (1) a whole culm feeder 16 switchable between (A) reaped grain culm conveyance mode and (B) whole culm feed mode with which the whole reaped grain culm is fed in a thresher 2 by releasing the hold of reaped grain culm feet, (2) a sensor 42 to detect the quantities of waste straw, etc., staying on a crude sorter and (3) a short culm sensor S2 to detect that the length of the grain culms being conveyed toward the thresher 2 is at or below a specified value. And, a control means 12 is formed so as to be designed that, based on information from the sensor S2, the whole culm feeder 16 is switched from the mode A to the mode B, after that, when it is detected by the sensor 42 that the quantities of waste straw, etc., come to specified values, the whole culm feeder 16 is returned from the mode B to the mode A.
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公开(公告)号：JPH0767454A
公开(公告)日：1995-03-14
申请号：JP21944893
申请日：1993-09-03
Applicant: KUBOTA KK
Inventor： OZAKI NORIMUNE , HIRATA KAZUYOSHI , IKEDA FUTOSHI , FUKUOKA YOSHITAKE , OTANI TOSHIKATSU , YAMAGATA KOJI , SOYA TAMOTSU , HAYASHI SHIGEKI , TERAO SOTOKAZU
Abstract: PURPOSE:To provide a combine harvester suppressed in dust blow from a threshing chamber and noise generation, capable of preventing development of unthreshing, equipped with a whole culm feeder, a threshing revolution sensor, etc., midway of grain culm conveying route. CONSTITUTION:A whole culm feeder 16 is installed midway of grain culm conveying route for threshing operation so as to be switchable between (A) holding conveyance mode with which reaped grain culms are conveyed and (B) whole culm feed mode with which the whole reaped culm is fed in a thresher by releasing the hold of reaped grain culm feet; besides, a threshing revolution sensor 32 to detect the number of revolutions of the driving shaft 31 of the thresher and a short culm sensor S2 to detect that the length of grain culms being conveyed towared the thresher is at or below a specified value, are also installed. And a control means 12 is formed so as to be designed that, based on information from this sensor S2, the whole culm feeder 16 is switched from the mode A to the mode B, and after that, when the value from the sensor 32 is recovered to a set value, the whole culm feeder 16 is returned from the mode B to the mode A.
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公开(公告)号：JPH0767447A
公开(公告)日：1995-03-14
申请号：JP21823793
申请日：1993-09-02
Applicant: KUBOTA KK
Inventor： TERAO SOTOKAZU , HIRATA KAZUYOSHI , OZAKI NORIMUNE , IKEDA FUTOSHI , FUKUOKA YOSHITAKE , OTANI TOSHIKATSU , YAMAGATA KOJI , SOYA TAMOTSU , HAYASHI SHIGEKI
Abstract: PURPOSE:To improve maneuvering handleability of a combine harvester in reaping operation traveling near a levee. CONSTITUTION:In a combine harvester in which a reaping pretreating part 4 is drivably and liftably connected around the center of a horizontal shaft to a front part of a machine body by a driving mechanism CY1, reaped grain culm is transported toward a thresher 2, a foot side of grain culm is held by a gripping conveyor 8 and an ear tip side is threshed in the thresher 2, the combine harvester is equipped with an ultrasonic sensor 26 for detecting height from the ground at a front side of the reaping pretreating part 4 and a rise and fall angle sensor for detecting height of the reaping pretreating part 4 from a machine body. When a reaping operation state in which reaping operation is carried out while gradually arising reaping height of grain culm is detected and the ultrasonic sensor 26 discovers the set height from the ground, the driving mechanism CY1 automatically controls the reaping pretreating part 4 to maintain the set height from the ground based on the detected information of the rise and fall angle sensor at the point of the detection.
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公开(公告)号：JPH0562768B2
公开(公告)日：1993-09-09
申请号：JP14444687
申请日：1987-06-09
Applicant: KUBOTA KK
Inventor： HIRATA KAZUYOSHI , IKEDA FUTOSHI
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公开(公告)号：JPH04262714A
公开(公告)日：1992-09-18
申请号：JP2181991
申请日：1991-02-15
Applicant: KUBOTA KK
Inventor： NAKA TAMAKI , IKEDA FUTOSHI , YOSHIDA HIROHISA , HIRATA KAZUYOSHI , MIZUNO RYOJI , TAKENAKA MITSURU , KATO KATSUHIDE
IPC: A01F12/60
Abstract: PURPOSE:To prevent grains from remaining on an overhanging member even when an operation for changing the overhanging member into a retreating posture is failed, when the grains in a tank is discharged. CONSTITUTION:A tank 5 for storing grains is provided with an overhanging member 12 capable of being freely switched into an overhanging posture overhanging outside or into a retreating posture retreating into the tank. A switch for switching the postures into two, a control means for operating a driving means D of the overhanging member 12 in response to the command, a discharging means 9 for discharging the grains from the bottom of the tank 5, and a grain volume-detecting means S1 for detecting the volume of the grains in the tank are disposed. The control means controls to operate a driving means D so that the overhanging member 12 is moved at once into a retreating posture, held in the state for a pre-set time and subsequently returned to the overhanging posture, when the discharging means 9 is operated in a state that the overhanging member 12 is commanded into the overhanging posture by the switch and when the grains are discharged below a pre-set volume.
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