Yanmar Holdings Patente

Occurrence of an accident during access to an accessed portion is prevented. A control method for a work machine 100 that uses an electric motor 2 to be supplied with electric power from a battery unit 1 as a drive source includes: allowing access to a predetermined accessed portion 101 by releasing a lock mechanism 5; and rendering the electric motor 2 in a non-drivable state while the lock mechanism 5 is in a released state.

Provided is a technology capable of suppressing flow disturbance caused at the time of joining of an exhaust gas, improving thermal efficiency of an engine, and enhancing cleanliness of an exhaust gas. An exhaust manifold is an exhaust manifold of an engine including a plurality of cylinders, and includes: a plurality of exhaust pipes through each of which an exhaust gas discharged from each of the cylinders flows; and a joining pipe coupled to the plurality of exhaust pipes, to which the exhaust gas flowing through each of the exhaust pipes is joined. The joining pipe includes a plurality of guide portions provided to respectively correspond to the plurality of exhaust pipes. Each of the guide portions guides the exhaust gas flowing in from the corresponding exhaust pipe in a flow direction of the exhaust gas flowing through the joining pipe. Each of the guide portions has an opposing surface provided to be opposed to an outlet of the corresponding exhaust pipe. At least one of the guide portions has a part that is disposed on a downstream side in the flow direction with respect to the outlet.

[Problem] A position of a horizon can be detected based on an identification result of a light of an other ship even in the nighttime by using an image acquired by a visible light camera. [Solution] A navigation support device that supports navigation of a ship includes a light detector. The light detector detects a light based on color information included in an image acquired by the visible light camera.

[Problem] To provide a harvesting machine in which a blind spot is less likely to occur.[Solution] A harvesting machine 4 includes a machine body 40, a horizontal conveyance path 492, and an antenna device 1. The machine body 40 includes a driving part 47. The horizontal conveyance path 492 has a length along a horizontal plane, is rotatable about a support portion 495 located on a rear side relative to the driving part 47, in plan view, and discharges a harvesting target from an end portion on a side opposite to the support portion 495. The antenna device 1 is supported by the machine body 40. The antenna device 1 is disposed at a position between the driving part 47 and the support portion 495, in plan view.

[Problem] To provide a control method of a working machine, a working machine control program, a working machine control system, and a working machine that facilitate improvement in working efficiency. [Solution] A control method of a working machine is a control method of a working machine including a prime mover for driving a hydraulic pump that discharges hydraulic oil, a working unit, and a pair of lock levers 463L and 463R. The working unit is driven by a hydraulic actuator that receives the hydraulic oil. Each of the pair of lock levers 463L and 463R can be switched between a first posture and a second posture. The control method includes making an operation of the prime mover different between a first state in which only one of the pair of lock levers 463L and 463R is in the first posture and a second state in which both of the pair of lock levers 463L and 463R are in the first posture.

[Problem] To provide an electric working machine capable of preventing loosening of connection between a battery unit and a cable with a compact configuration.[Solution] A hydraulic excavator as an electric working machine includes an electric motor, a battery unit that stores electric power for driving the electric motor, a cable connected to the battery unit, and a restricting portion disposed to face the battery unit. The restricting portion restricts movement of the cable.

[Problem] To suppress an increase in length of a pipe connecting a control valve and a hydraulic pump without interfering with a battery unit.[Solution] A working machine 100 includes an electric motor 2, a battery unit 3, a control valve 4, and a pipe 5. The electric motor 2 drives a hydraulic pump 1. The battery unit 3 supplies electric power to the electric motor 2. The control valve 4 controls flow of hydraulic oil pressure-fed from the hydraulic pump 1. The pipe 5 connects the hydraulic pump 1 and the control valve 4. The pipe 5 extends from one of the hydraulic pump 1 and the control valve 4 to the other via the lower side of the battery unit 3.

[Problem] A technique capable of improving the operability of an expansion-type operation device is provided. [Solution] An exemplary operation device includes: a lever stand that is disposed on a side of a seat and has an operation lever; a lever stand support portion that supports the lever stand so that the lever stand is pivotable up and down; a base portion that is disposed below the lever stand support portion and supports the lever stand support portion so that the lever stand support portion is pivotable left and right; and a holding plate that is supported by the base portion and disposed above a bottom portion of the lever stand support portion. When the lever stand is pivoted from the first posture to the second posture, the lever stand support portion is made pivotable in a left-right direction to select a third posture or a fourth posture. The holding plate holds, in the third posture or the fourth posture, the lever stand support portion supporting the lever stand in the first posture.

[Problem] Provided are an aftertreatment device capable of purifying exhaust gas with a compact configuration and an engine including the aftertreatment device. [Solution] An aftertreatment device includes: a DPF case; an SCR case; an exhaust connection pipe that connects the DPF case and the SCR case; a mixer arranged at an upstream end of the exhaust connection pipe in a flow direction of exhaust gas; and a urea water injection portion that injects urea water into the mixer.

[Problem] To provide a work machine in which connection work to a controller can be facilitated while the controller can be efficiently arranged.[Solution] A hydraulic excavator as a work machine is a work machine including: a base plate that is located in a bottom portion of a machine body; a pair of vertical plates that are disposed to extend in a front-back direction of the machine body, on the base plate; and a controller that is arranged between the pair of vertical plates.

[Problem] To provide a work machine capable of improving the workability of a maintenance operation of a controller and facilitating a connection operation to the controller.[Solution] A hydraulic excavator as a work machine includes a controller, an operation portion on which an operator rides to operate a machine body, and a hood member that covers a portion of the machine body. The operation portion is installed on a first lateral side of the machine body, the hood member is disposed on a second lateral side of the machine body, and the controller is disposed between the operation portion and the hood member.

[Problem] To provide a control method of a work machine, a work machine control program, a work machine control system, and a work machine, that can easily perform an action intended by an operator. [Solution] A control method of a work machine includes executing the deceleration control when the deceleration condition is satisfied and changing the rated rotational speed in accordance with an operation of the accelerator operation portion 37. In the deceleration control, the target rotational speed of the prime mover 40 for driving the hydraulic pump 41 that discharges hydraulic oil is switched from the rated rotational speed to a first specific rotational speed lower than the rated rotational speed. Here, in the control method, when there is an operation on the accelerator operation portion 37 while the deceleration control is being executed, the deceleration control is continued.

[Problem] To provide a technique capable of detecting a state of gas fuel that flows in an inner pipe and preventing leakage of the gas fuel to the outside of an outer pipe. [Solution] A gas fuel flow device is a gas fuel flow device of an engine that combusts a gas fuel comprising: a double pipe including an inner pipe through which the gas fuel flows, and an outer pipe that is placed with a predetermined gap between the outer pipe and an outer peripheral surface of the inner pipe. The double pipe is provided with a detection portion that detects a state of the gas fuel. The detection portion includes a state detection sensor that is arranged to extend from an inside of the inner pipe to an outside of the outer pipe, and a cover portion that covers a protruding portion of the state detection sensor that protrudes from the outer pipe.

[Problem] Provided are an operation control method, an operation control program, and an operation control system capable of appropriately controlling an operation of a work vehicle that performs agricultural work.[Solution] An automatic traveling system 1 includes: a setting processing unit 412 that sets, to operation terminals 20 and 30 or an operator, an authority to give an instruction related to automatic traveling to a work vehicle 10 on the basis of a predetermined condition; and a control processing unit 111 that operates the work vehicle 10 on the basis of an instruction given from the operation terminals 20 and 30 or the operator to which the authority is set.

[Problem] Provided are a communication control method, a communication control program, and a communication control system capable of reducing a communication load on a communication device capable of wireless communication with a work vehicle, and inhibiting deterioration in workability of a user. [Solution] An automatic traveling system 1 includes: a setting processing unit 412 that sets a communication amount of a case where data is transmitted from a work vehicle 10 that performs predetermined work in a field to a management server 40 capable of wireless communication with the work vehicle 10, on the basis of a state of the work vehicle 10 or operation information of an operator; and a transmission processing unit 112 that causes the work vehicle 10 to transmit the data to the management server 40 on the basis of the communication amount set by the setting processing unit 412.

[Problem] There is provided a working machine in which hydraulic hoses and harnesses can be compactly routed.[Solution] A working machine includes: a lower body; a pair of left and right arms that are attached to the lower body and extend forward; a blade that is attached to a distal end side of an arm; a hydraulic hose that extends from the lower body toward the blade; and a harness that extends from the lower body toward the blade. The hydraulic hose extends along the one arm and is disposed to be shifted from the harness in an upper-lower direction.

[Problem] A technique is provided capable of simplifying a structure and accurately detecting torque acting on an elastic body. [Solution] The drive device includes a drive source that generates a rotary drive force, and an elastic body that connects the drive source and a load. The elastic body includes a torsion bar.

[Problem] Provided are a work method, a work program, and a work system that are capable of appropriately controlling a work implement attached to a work vehicle capable of automatic traveling. [Solution] A reaping control device 11B executes a process of controlling a height of a harvesting unit based on a height of a ground or a crop in a work area during automatic travel of a combine 1, and a process of switching a harvest height control function that controls the height of the harvesting unit from disabled to enabled when the harvesting unit reaches a first position on a work path away from a target start position of work on the work path by a first predetermined distance in a work direction.

[Problem] Provided are a route generation method, a route generation program, and a route generation system capable of improving workability of an operator by easily generating a travel route desired by the operator.[Solution] In a travel system 10, when stop information of travel or work is acquired while a combine harvester 1 is traveling on a first travel route, a generation processing unit 312 generates a second travel route for travel subsequently to the first travel route based on a predetermined position corresponding to a travel stop position or a work stop position of the combine harvester 1 and a work width of the combine harvester 1.

[Problem] To display a work device for performing farmwork in a field and a worker who uses the work device in association with each other.[Solution]A work management method comprises: acquiring (S1) first work device positional information obtained by measuring a position of a first work device (2) that performs work in a field (9), and first worker positional information obtained by measuring a position of a first worker (3) who performs the work with the first work device (2); estimating (S3) a relationship between the first work device (2) and the first worker (3), based on the first work device positional information and the first worker positional information; and displaying (S6) a first integrated icon (74) that integrally represents the first work device (2) and the first worker (3) at a position corresponding to the position of the first work device (2) on a map (91) representing the field (9) when it is estimated that the first work device (2) is being used by the first worker (3).

[Problem] Provided are a path generation method, a path generation program, and a path generation system that can improve the work accuracy when working at a corner of a work area. [Solution] A generation processing unit 312 determines whether work at a corner of a work area has been completed up to a predetermined position inside the work area, and generates a corner work path for performing the work at the corner when it is determined that the work at the corner of the work area has not been completed up to the predetermined position.

[Problem] To suppress or prevent influence of vibration during operation of a work machine from being exerted on devices compactly arranged in an engine room.[Solution] The work machine 100 includes a base plate 402, an electric motor 621, a hydraulic pump 701, a fan 31, and a base portion 5. The electric motor 621 is supported on the base plate 402. The hydraulic pump 701 is connected to a first side of the electric motor 621 in a first direction perpendicular to the up-down direction. The fan 31 is disposed above the hydraulic pump 701. The base portion 5 that is disposed on the base plate 402 across the hydraulic pump 701 supports the fan 31.

[Problem] To provide a control method of a working machine, a working machine control program, a working machine control system, and a working machine that easily suppress working machine movement not intended by an operator.[Solution] A control method of a working machine 3 is a control method of the working machine 3 having an interference avoidance function of controlling an operation of a working unit 33 so as to avoid interference of the working unit 33 with a driving unit 321. This control method includes executing the disabling startup processing of enabling the working unit 33 to operate in a state where the interference avoidance function is disabled when the specific condition including that the first manipulation is performed at the time of startup of the working machine 3 by the startup manipulation is satisfied.

[Problem] To provide a work machine capable of efficiently taking in air from a ventilation portion having high durability.[Solution] A work machine 100 includes a hood 1, a ventilation portion 2, and a fan 31. The hood 1 surrounds a machine body 404. The ventilation portion 2 is formed in the hood 1 and connects an inside and an outside of the machine body 404. The fan 31 is disposed in the machine body 404 and takes in outside air via the ventilation portion 2. The ventilation portion 2 includes a circular opening portion 21 and an inner wall portion 22. The inner wall portion 22 extends from an outer surface of the hood 1 toward an outer edge of the opening portion 21 and surrounds at least a portion of the outer edge of the opening portion 21.

[Problem] To provide a control method for a work vehicle, a work vehicle control program, a work vehicle control system, and a work system capable of improving work efficiency with respect to a work site. [Solution] A control method for a work vehicle 10 is a control method for the work vehicle 10 that performs work while self-traveling in a work site F1 along a target route R1. This control method includes generating the target route R1, and designating a travel direction of the work vehicle 10 at an end point P22 of a circulating route r13 when generating the circulating route r13 on which the work vehicle 10 travels to circulate around an outer peripheral region F12 of the work site F1 in the target route R1.

[Problem] To provide an electric work machine having a compact layout and facilitating an increase in capacity of a battery unit while taking into consideration cooling efficiency when cooling an electric motor, a hydraulic pump, and a hydraulic oil tank.[Solution] A hydraulic excavator as an electric work machine includes: an electric motor; a battery unit that stores electric power for driving the electric motor; a hydraulic oil tank that contains hydraulic oil, and a hydraulic pump that is driven by the electric motor and connected to the hydraulic oil tank. The electric motor, the hydraulic pump, and the hydraulic oil tank are arranged below the battery unit on a machine body frame, and are arranged side by side in a lateral direction of the machine body frame.

[Problem] To provide a control method of a working machine, a working machine control program, a working machine control system, and a working machine that easily suppress working machine movement not intended by an operator. [Solution] A control method of a working machine includes: displaying, on a display device, a setting screen Dp13 for receiving setting information for any setting item related to the working machine; displaying, on the display device, a first image Im11 serving as guidance for a specific manipulation; applying the setting information for the setting item when the specific manipulation is performed; and displaying, on the display device, a second image Im12 instead of the first image Im11 when the setting information is applied.

[Problem] Provided is a working machine that facilitates routing of a harness connected to a controller and facilitates maintenance work of the controller. [Solution] A working machine includes: a hydraulic pump arranged on a first lateral side with respect to a prime mover in a machine room; a heat exchanger arranged on a second lateral side with respect to the prime mover in the machine room; and a bracket to which a controller is mounted, the bracket being arranged in the machine room to face a cover member that is detachably provided and forms a side wall of the machine room. The bracket is arranged to be at least partially located on the first lateral side of the hydraulic pump and above the hydraulic pump in a rear view.

[Problem] To provide a control method for a work vehicle, a work vehicle control program, a work vehicle control system, and a work system capable of improving work efficiency with respect to a work site. [Solution] A control method for a work vehicle is a control method for a work vehicle that performs work while self-traveling in a work site F1. This control method includes obtaining presentation information related to an unworkable region Ai1 on which work during self-traveling of the work vehicle is not performed in the work site F1, and outputting the presentation information.

[Problem] To provide a work vehicle control method, a work vehicle control program, a work vehicle control system, and a work system, capable of improving a degree of freedom of a timing at which a work vehicle is caused to start a specific action.[Solution] A work vehicle control method includes causing the work vehicle to perform a specific action and causing a display portion to display a display screen. A start condition for starting the specific action includes a display condition related to the display of the display portion, and it is determined that the display condition is satisfied when either a first screen (guidance screen Dp1) is being displayed as the display screen or a second screen (interruption screen Dp2) different from the first screen (guidance screen Dp1) is being displayed as the display screen and a mode of screen transition satisfies a specific condition.

[Problem] A work machine control method, a work machine control program, a work machine display system, and a work machine that enable to display appropriate information in a case where a work machine is electrified are provided.[Solution] A work machine control method is a control method of a work machine provided with, as a power source that generates power for driving at least a work unit, an electric motor to be driven by electric power of a battery. The control method includes causing a display unit of a display device to display a display screen Dp1 including a first image G1 related to an output state of the electric motor, and a second image G2 related to a charge state of the battery.

[Problem] Provided is a working machine capable of ensuring ride comfort of an operator in a cabin and good forward visibility of the operator in a configuration in which a monitor and an air conditioner are arranged in the cabin.[Solution] The working machine includes: the air conditioner arranged in a cabin on a first lateral side of a driver's seat and on a front side of the driver's seat; the monitor arranged above the air conditioner; a first frame that separates a front window into upper and lower portions, the front window being arranged in a front portion of the cabin; and a second frame arranged in the front portion on the first lateral side of the first frame and extending upward. In a front view, the monitor is arranged to overlap with the first frame and the second frame.

[Problem] To provide a control method of a working machine, a working machine control program, a working machine control system, and a working machine that make it easy for an operator to recognize an attachment being mounted.[Solution] A control method of a working machine is a control method of a working machine capable of replacing an attachment of a working unit. This control method includes displaying, on a display device, attachment information Im22 related to the attachment being mounted at the time of startup of the working machine by a startup manipulation.

[Problem] The present disclosure provides a pre-chamber spark plug capable of adequately scavenging the pre-chamber. [Solution] In an engine provided with a pre-chamber spark plug 20, the pre-chamber C2 is formed by a torch sleeve 30 mounted on a cylinder head and having nozzles 33, 33, ..., 34 and a spark plug 40. In the torch sleeve 30, a tip 32 protruding from the cylinder head has a tapering portion the diameter of which gradually decreases toward a piston, or specifically a tapered section. The tapered section is provided with a plurality of nozzles 33, 33, ....

[Problem] To provide an operation management device capable of ensuring the convenience of a power generation system by causing the power generation system to perform an operation suitable for a request to the power generation system in a predetermined case.[Solution] An operation management device manages an operation of a power generation system comprising an engine power generator and a fuel cell power generator, and the operation management device comprises a processing portion that operates one of the engine power generator and the fuel cell power generator when a required output of the power generation system is equal to or less than a first predetermined value.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …