Kubota Patente

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To achieve a reduction in power consumption during work and to enable appropriate illumination of a work area. A working machine includes a machine body (2), a boom (14) including a proximal end coupled to the machine body such that the boom is swingable up and down, an arm (15) coupled to a distal end of the boom such that the arm is swingable in an arm-crowd direction which is a direction toward the boom and an arm-dump direction which is a direction away from the boom, a working tool (16) attached to a distal end of the arm, a working lamp (20) provided at the boom to illuminate a work area around the boom, and an illumination controller (44) to control an illumination operation of the working lamp. The working lamp includes a first light source (25) and a second light source (26) with different optical axis directions from each other. The optical axis direction (N1) of the first light source is oriented more to the distal end of the boom than the optical axis direction of the second light source is to the distal end of the boom, and the optical axis direction (N2) of the second light source is oriented more to the proximal end of the boom than the optical axis direction of the first light source is to the proximal end of the boom. The illumination controller is configured or programmed to, when the arm is within a crowd range (P2), perform a first control to control an illuminance of the first light source such that the illuminance of the first light source is lower than when the arm is within a dump range (P3), the crowd range being a portion of a swinging range of the arm that is located in the arm-crowd direction, the dump range being another portion of the swinging range that is located downstream of the crowd range in the arm-dump direction.

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A work vehicle, comprises: an operation section (9) occupiable by an operator; a cabin (10) accommodating the operation section (9); left and right suspension mechanisms (24) via which a body (3) of the work vehicle supports a left portion and a right portion of the cabin (10); and left and right lateral rods (25) configured to allow the cabin (10) to move upward and downward relative to the body (3) and restrain the cabin (10) from moving leftward and rightward relative to the body (3).

With a shaft (16,27) and a support (14a, 33a, 34a) attached to each other, a gate (10, 11) is swingable about a horizontal axis (P1,P3) between a standing position (A11,A21) and an open position (A12,A22) and detachable from a floor (9). A holder (17,29) is included that is manually operable between (i) a first position (B 11,B21), in which the holder (17,29) prevents the shaft (16,27) and the support (14a, 33a, 34a) from becoming apart from each other and holds the gate (10, 11) in such a manner that the gate (10, 11) is swingable about the axis (P1,P3), and (ii) a second position (B12,B22), in which the holder (17,29) allows the shaft (16,27) and the support (14a, 33a, 34a) to become apart from each other and allows the gate (10, 11) to be detached from the floor (9).

A working vehicle (1) includes a first hydraulic pump (36) which is a variable displacement pump with a delivery flow rate controlled by load sensing control, a second hydraulic pump (79) which is a fixed displacement pump, at least one working-machine-related control valve (23, 41, 59, 63) to control at least one working-machine-related hydraulic actuator, a power shift valve (83) to control at least one traveling-power-transmission-related hydraulic actuator, and a power steering controller (82) to control a steering-related hydraulic actuator; wherein the at least one working-machine-related control valve is provided in a first hydraulic system (34) supplied with hydraulic fluid by the first hydraulic pump (36), and at least one of the power shift valve (83) or the power steering controller (82) is provided in a second hydraulic system (35) supplied with hydraulic fluid by the second hydraulic pump (79).

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The present disclosure refers to an automatic traveling work vehicle that can monitor whether work traveling is properly performed along a travel route. The automatic traveling work vehicle includes: a travel route generation unit to generate the travel route; a work event planning unit to generate a work event plan defining a work event performed during the work traveling; an actual work event command generation unit (53) to generate an actual work event command based on the travel route, the work event plan, and an own vehicle position; a virtual work event command generation unit (45) to generate a virtual work event command based on the travel route, the work event plan, and the own vehicle position; and a work traveling monitoring unit (61) to determine an abnormality of the work traveling based on the actual work event command and the virtual work event command. Also, a method for controlling work traveling for an automatic traveling work vehicle along a travel route is provided.

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