Kubota Patente

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Provided is a working machine capable of appropriately setting a holding position at which a to-be-held object is to be held and reducing variations in the operation of holding the to-be-held object. A working machine (1) includes a machine body (2), a working device (20) provided on the machine body (2), an attachment (100) provided on the working device (20) to hold an elongated to-be-held object (W), a first sensor (81) to recognize a position of one end portion (W1b) of the to-be-held object (W), a setter (57) to set a holding position (PG) based on a recognition result from the first sensor (81), the holding position (PG) being a position at which the to-be-held object (W) is to be held by the attachment (100), a controller (51) to control the working device (20). The controller (51) is configured or programmed to control the working device (20) to allow the attachment (100) to hold the to-be-held object (W) at the holding position (PG) set by the setter (57).

The safety in an operation using an attachment to hold a to-be-held object is improved. A working machine (1) includes a machine body (2), a working device (20) provided on the machine body (2) to attach thereto an attachment (100) to hold a to-be-held object, and a controller (51) to impose an operational limitation to limit one or both of an operational area and an operational speed of the working machine (1) when causing the attachment (100) to perform an operation of holding the to-be-held object.

A battery is easily and firmly secured. A battery mount (50) includes a placement base (54), a restriction member (55) to restrict rearward movement of the battery (BT), the restriction member (55) being provided at the same side of the battery (BT) as a rear surface of the battery (BT), and a securing assembly (53) to secure the battery (BT), the securing assembly (53) extending from a position above the restriction member (55) or from an upper portion of the restriction member (55) to a forward surface of the battery (BT). The securing assembly (53) includes a first securer (53a) provided at the same side of the battery (BT) as an upper surface of the battery (BT), a second securer (53b) provided at the same side of the battery (BT) as the forward surface of the battery (BT), and a coupler (90) to couple the first securer (53a) and the second securer (53b) to each other. The coupler (90) includes an inclined portion (63) provided in one of the first securer (53a) and the second securer (53b), the inclined portion (63) being inclined in an inclination direction such that a distance between the inclined portion (63) and the rear surface of the battery (BT) decreases in an upward direction, and a retention member (52) to retain a position at which the other of the first securer (53a) and the second securer (53b) is coupled to the inclined portion (63) such that the position relative to the inclined portion (63) is adjustable.

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The present invention easily reduces the influence of air entrainment in hydraulic fluid in fluid chambers (E1, E2, DE) on a hydraulic device (C). A hydraulic system (S) for a working machine (1) includes: a hydraulic pump (P); a hydraulic device to be actuated by hydraulic fluid delivered by the hydraulic pump to drive the working machine; a solenoid proportional valve (SV) to adjust a flow rate and/or a pressure of hydraulic fluid supplied from the hydraulic pump to the hydraulic device; and a controller (70) configured or programmed to control the solenoid proportional valve. The solenoid proportional valve includes: a housing (80); a spool (83) housed in the housing; a coil (85) to be controlled by the controller, and a moving portion (87) to be caused by a magnetic flux generated by the coil to move the spool. The housing includes a fluid chamber to store hydraulic fluid, the fluid chamber having a volume that changes with movement of the spool. The controller is configured or programmed to include an air-bleeding mode in which the controller controls the coil to cause the moving portion to reciprocate a plurality of times in an axial direction of the spool.

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Provided is a highly convenient independent water use system (101 to 106). The independent water use system (101 to 106) is for water use for one or more specific water demand facilities (20, 20a, 20b, 40, 40a to 40d), and includes a clean water generator (10), a clean water pipe (11a to 11d, 11) to allow clean water generated by the clean water generator (10) to flow to the clean water demand facility (20, 20a, 20b), a first drainage water pipe (21a, 21c, 21d) to allow first drainage water, resulting from usage of the clean water in the clean water demand facility (20, 20a, 20b), to flow therethrough; a purifier (30, 30x, 30y) connected to the first drain pipe (21a, 21c, 21d) to purify the first drainage water, and a recycled water pipe (31a to 3 If, 31) to allow recycled water obtained by purification of the first drainage water by the purifier (30, 30x, 30y) to flow to recycled water demand facility (40, 40a to 40d).

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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 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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Zusammenfassung wird geladen …

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Zusammenfassung wird geladen …

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Zusammenfassung wird geladen …

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