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公开(公告)号：JP2002191219A
公开(公告)日：2002-07-09
申请号：JP2000396538
申请日：2000-12-27
Applicant: KUBOTA KK
Inventor： NAGANO FUMIO , OKUYAMA TEN , INADA TOSHIHIRO , KAMIKITA CHIHARU , TAKEUCHI YOSHIAKI , NAKAMURA KUNISUKE , OZAKI NORIMUNE , MIYANO YOSHIMI , OOMORI MIKIO , AIDA CHU , YOSHIDA YUSAKU
Abstract: PROBLEM TO BE SOLVED: To provide an operative structure for a working machine intended to mitigate the feeling of fatigue given to an operator as a result of steering a traveling machine body or making a lift operation for a working unit, and ensuring such a delicate operation to be made easily. SOLUTION: This operative structure for a working machine has the following mechanism: a traveling machine body 2 is steered by a steering system 33 through making a changeover of the actuation mode of left and right crawler- type traveling units 1 and the lift mode of a working unit 3 linked to the traveling machine body 2 is put to changeover by the action of a lift unit 35 based on the back-and-forth swing operation of a control lever 15; wherein the traveling machine body 2 is steered by the steering system 33 through making a changeover of the actuation mode of the left and right crawler-type traveling units 1 based on the operation, in the transverse direction, of a finger-acting operative tool 70 equipped with the control lever 15, and the lift mode of the working unit 3 linked to the traveling machine body 2 is put to changeover by the action of the lift unit 35 also based on the operation, in the vertical direction, of the operative tool 70.
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公开(公告)号：JP2002104229A
公开(公告)日：2002-04-10
申请号：JP2000300124
申请日：2000-09-29
Applicant: KUBOTA KK
Inventor： OKUYAMA TEN , NAGANO FUMIO , INADA TOSHIHIRO , MIYANO YOSHIMI , TAKEUCHI YOSHIAKI , KAMIKITA CHIHARU
IPC: B62D11/08
Abstract: PROBLEM TO BE SOLVED: To provide a steering device of an agricultural working machine capable of steering and operating a machine body at a different turning mode by a simple and light operation. SOLUTION: When a steering lever 42 is pivoted and operated to any one of the right and left sides from a neutral position, a steering control means 43 operates an electric motor 110 based on an information from a sensor 49 and a steering switch valve V1 is switch-operated by the electric motor 110 to operate one of side clutches 20L, 20R to the disconnection side. At this time, a turning mode selection valve V2 operates a clutch C to the connection side and a traveling device on the turning inside is speed-reduced. When the steering lever 42 is further oscillation operated in this direction, the steering control means 43 operates the electric motor 110 based on the information from the sensor 49 and the turning mode selection valve V2 is switch-operated by the electric motor 110 to operate a brake mechanism B to the connection side. Thereby, the traveling device on the turning inside is braked.
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Patent Agency Ranking
公开(公告)号：JP2002284050A
公开(公告)日：2002-10-03
申请号：JP2001093430
申请日：2001-03-28
Applicant: KUBOTA KK
Inventor： AIDA CHU , OOMORI MIKIO , TAKEUCHI YOSHIAKI , YOSHIDA YUSAKU , KAMIKITA CHIHARU
IPC: A01D67/00 , B62D55/08 , B62D55/116
Abstract: PROBLEM TO BE SOLVED: To improve attitude stability in entering a paddy field with a front edge tilted diagonally downward. SOLUTION: Among a plurality of ground rolling wheels 9 arranged in parallel in the longitudinal direction for guiding the ground side of a crawler belt 14, one ground rolling wheel positioned in the front end and the following one are supported by a track frame 8 freely oscillationally in the opposite directions vertically around a lateral shaft core P1 positioned between them. A regulating means 18 restricting upward oscillation of the ground rolling wheel 9 positioned in the front end is arranged.
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公开(公告)号：JP2002193134A
公开(公告)日：2002-07-10
申请号：JP2000396539
申请日：2000-12-27
Applicant: KUBOTA KK
Inventor： NAGANO FUMIO , OKUYAMA TEN , OZAKI NORIMUNE , KAMIKITA CHIHARU , INADA TOSHIHIRO , YOSHIDA YUSAKU
Abstract: PROBLEM TO BE SOLVED: To eliminate incompatibility in rocking an operating lever in the lateral direction, and to improve the operability in rocking the operating lever in the lateral direction. SOLUTION: The operating lever 15 operated to rock in the lateral direction is provided with an energizing means 27 for energizing the operating lever 15 to be rocked toward the neutral position, and the energizing means 27 is constructed so that the operating load for rocking the operating lever 15 on the back side of the hand holding the operating lever 15 is smaller than the operating load for rocking the lever on the palm side of the hand.
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公开(公告)号：JP2001275461A
公开(公告)日：2001-10-09
申请号：JP2000098531
申请日：2000-03-31
Applicant: KUBOTA KK
Inventor： OOMORI MIKIO , NAKAMURA KUNISUKE , NAGANO FUMIO , TAKEUCHI YOSHIAKI , YOSHIDA YUSAKU , KAMIKITA CHIHARU
Abstract: PROBLEM TO BE SOLVED: To provide a driving part structure capable of stably driving even in such posture as to look into the front of a machine body. SOLUTION: In this driving part structure, a supporting tool which vertically swingably has a driving seat 10 around right and left shaft centers positioned on the front side and supports the driving seat 10 in a downwardly inclined posture is installed, and a knee pad 20 is arranged on the inner side of front wall of the driving part positioned in the front of the driving seat 10.
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公开(公告)号：JP2002356172A
公开(公告)日：2002-12-10
申请号：JP2001164441
申请日：2001-05-31
Applicant: KUBOTA KK
Inventor： OKUYAMA TEN , KAMIKITA CHIHARU , YOSHIDA YUSAKU
IPC: B62D11/08
Abstract: PROBLEM TO BE SOLVED: To improve steering performance and reliability. SOLUTION: There are provided right and left side clutches respectively engaging and disengaging a right and a left driving devices and a reduction clutch for the driving device and a braking mechanism for braking whose side clutch is disengaged, and on the outside of a side of a mission case 9, a steering link mechanism for switching a steering selector valve for operating the side clutch with operation of an operating member manipulated by an electric motor 110 form a neutral position and a mode switching interlocking mechanism Z2 for switching a turning mode selector valve for selectively connecting a clutch C and a braking mechanism B to a hydraulic pressure supply source with operation of the operating member form the neutral position to a set position are arranged at a height at which a removal operation of an upper continuously variable transmission 8 is allowed, the electric motor 110 is controlled based on detection of steering and operation and a turning control valve is linked with steering manipulator.
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公开(公告)号：JP2002096776A
公开(公告)日：2002-04-02
申请号：JP2000290442
申请日：2000-09-25
Applicant: KUBOTA KK
Inventor： OOMORI MIKIO , NAKAMURA KUNISUKE , AIDA CHU , KAMIKITA CHIHARU
Abstract: PROBLEM TO BE SOLVED: To improve riding comfortableness when a crawler type work vehicle turns and runs. SOLUTION: In this crawler type work vehicle provided with a pair of right and left crawler devices B in a running machine body A, a plurality of track roller road wheels 9 guiding the tread side of a crawler belt 12 are divided into a plurality of sets, namely three sets or more, composed of a plurality of track roller road wheels 9 adjacent in the longitudinal direction of the machine body, each set of the track roller road wheels 9 is supported around a support point shaft 18 provided in a track frame 7 so that a balance oscillates freely, and a support point shaft 18a supporting the set of track roller road wheels 9 provided at an intermediate position in the longitudinal direction of the machine body among a plurality of sets of the track roller road wheels 9 so that the balance oscillates freely is provided close to a vertical line Z passing a position of the center of gravity of the running machine body A when viewed from the side.
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