Abstract: In a holder attached state in which a holder upper part 11 is attached to a brush rotation shaft 2, the lower surface of the holder upper part 11 and the inner peripheral surface of a holder lower part 18 define a brush accommodating space 23, and the inner peripheral edge of a holder bottom plate part 19 defines a circular holder opening 24 having a smaller diameter than the inner diameter of the holder lower part 18. A held part 31 of a brush body 30 is in a circular column shape incapable of penetrating through the holder opening 24, and is accommodated and held in the brush accommodating space 23. A cleaning part 32 of the brush body 30 is in a circular column shape smaller in diameter than the held part 31 and capable of penetrating through the holder opening 24, and penetrates through the holder opening 24 and projects downward.

Abstract: A roller case (10) includes a first case body (11) and a second case body (12). In a roller-stored state, the case-closed state is kept by the engagement between the first case body (11) and the second case body (12), the roller main body (2) of the roller (1) is contained in the roller-main-body containing space (46), being spaced from the first case body (11) and the second case body (12), the one end and the other end of the rotation shaft (3) of the roller (1) are clamped in the axis crossing direction and held between the first support portions (25) of the first case body (11) and the second support portions (42) of the second case body (12), and the entire roller (1) is covered with the first case body (11) and the second case body (12).

Abstract: A sponge roller is made of a polyvinyl acetal porous resin material having elasticity in a wet state, includes a roller in an approximate cylinder form and a plurality of protrusions formed integrally on an outer peripheral surface of the roller, and rotates the multiple protrusions to make contact with a surface to be cleaned so as to clean the surface. The polyvinyl acetal porous resin material constituting the sponge roller contains a cationic functional group.

Abstract: A control system includes: first and second hydraulic pumps; an opening/closing device provided in a passage connecting the first and second hydraulic pumps and configured to open and close the passage; a control device controlling the opening/closing device to switch between connected and unconnected states of the first and second hydraulic pumps; a first hydraulic cylinder to which hydraulic fluid from the first hydraulic pump is supplied in the unconnected state; and a second hydraulic cylinder to which hydraulic fluid from the second hydraulic pump is supplied in the unconnected state. The control device controls the opening/closing device to be in the connected state when distributed flow rates of the hydraulic cylinders are a predetermined supply flow rate or lower and a difference between a pressure in a rod-side space and a pressure in a cap-side space of the hydraulic cylinder is a defined value or smaller.

Abstract: A roller case (10) includes a first case body (11) and a second case body (12). In a roller-stored state, the case-closed state is kept by the engagement between the first case body (11) and the second case body (12), the roller main body (2) of the roller (1) is contained in the roller-main-body containing space (46), being spaced from the first case body (11) and the second case body (12), the one end and the other end of the rotation shaft (3) of the roller (1) are clamped in the axis crossing direction and held between the first support portions (25) of the first case body (11) and the second support portions (42) of the second case body (12), and the entire roller (1) is covered with the first case body (11) and the second case body (12).

Abstract: A control system includes: calculating a distribution flow rate of hydraulic fluid to be supplied to first and second hydraulic actuators based on a pressure of hydraulic fluid in the first and second hydraulic actuators and an operation amount operated to drive the first and second hydraulic actuators; calculating merged-state pump output indicating outputs of first and second hydraulic pumps required in a merged state based on the distribution flow rate; calculating separated-state pump output indicating outputs of the first and second hydraulic pumps required in the separated state based on the distribution flow rate; calculating excessive output of an engine based on the merged-state pump output and the separated-state pump output; calculating reduced output of the engine more reduced than target output by correcting the target output of the engine based on the excessive output; and controlling the engine based on the reduced output in the separated state.

Abstract: A control system includes: a first hydraulic pump and a second hydraulic pump; a passage connecting the first hydraulic pump and the second hydraulic pump with each other; an opening/closing device provided in the passage and configured to open and close the passage; a control device configured to control the opening/closing device to switch between a split-flow state in which the passage is closed and a connected state in which the passage is open; a first actuator to which hydraulic fluid discharged from the first hydraulic pump is supplied in the split-flow state; and a second actuator to which hydraulic fluid discharged from the second hydraulic pump is supplied in the split-flow state. In the connected state, the control device controls the opening/closing device so that the connected state is maintained even when either one of the first actuator and the second actuator is brought into a driven state.

Abstract: A control system includes a cylinder pressure data acquisition unit that acquires cylinder pressure data indicating a pressure of operating oil of a hydraulic cylinder; an operation amount data acquisition unit that acquires operation amount data of an operating device; a pump flow rate calculation unit that calculates a first pump flow rate indicating a flow rate of the operating oil discharged from a first hydraulic pump and a second pump flow rate indicating a flow rate of the operating oil discharged from a second hydraulic pump in a splitting state in which a passage is closed based on the cylinder pressure data and the operation amount data; and a pump control unit that controls the first hydraulic pump and the second hydraulic pump based on the first pump flow rate and the second pump flow rate.

Abstract: A control system for controlling a work machine including a working unit including elements and actuators that drives the elements includes: a first hydraulic pump and a second hydraulic pump each of which supplies operating oil to at least one of the actuators; and a control device that calculates a distribution flow rate of operating oil distributed to each of the actuators based on an operating state of the working unit and switches, based on the calculated distribution flow rate, between a first state in which the operating oil supplied from both the first hydraulic pump and the second hydraulic pump is supplied to the actuators and a second state in which the actuator to which the operating oil is supplied from the first hydraulic pump is different from the actuator to which the operating oil is supplied from the second hydraulic pump.

Abstract: An image forming system that is capable of preventing obstruction of transmission of a packet to an information processing apparatus from a USB device supporting USBNW due to the shift to the sleep mode. The image forming system includes an information processing apparatus, an image forming apparatus with a sleep mode, and a USB device that is connected to the information processing apparatus through the image forming apparatus and is controlled by the information processing apparatus. The image forming apparatus includes a first determination unit that determines whether the USB device supports USBNW, a second determination unit that determines whether a packet received from the information processing apparatus is processed by a module supporting USBNW, and a control unit that prohibits the image forming apparatus from shifting to the sleep mode when the USB device supports USBNW and when the packet is processed by the module supporting USBNW.

Abstract: A control system includes: calculating a distribution flow rate of hydraulic fluid to be supplied to first and second hydraulic actuators based on a pressure of hydraulic fluid in the first and second hydraulic actuators and an operation amount operated to drive the first and second hydraulic actuators; calculating merged-state pump output indicating outputs of first and second hydraulic pumps required in a merged state based on the distribution flow rate; calculating separated-state pump output indicating outputs of the first and second hydraulic pumps required in the separated state based on the distribution flow rate; calculating excessive output of an engine based on the merged-state pump output and the separated-state pump output; calculating reduced output of the engine more reduced than target output by correcting the target output of the engine based on the excessive output; and controlling the engine based on the reduced output in the separated state.

Abstract: A control system includes: a first hydraulic pump and a second hydraulic pump; a passage connecting the first hydraulic pump and the second hydraulic pump with each other; an opening/closing device provided in the passage and configured to open and close the passage; a control device configured to control the opening/closing device to switch between a split-flow state in which the passage is closed and a connected state in which the passage is open; a first actuator to which hydraulic fluid discharged from the first hydraulic pump is supplied in the split-flow state; and a second actuator to which hydraulic fluid discharged from the second hydraulic pump is supplied in the split-flow state. In the connected state, the control device controls the opening/closing device so that the connected state is maintained even when either one of the first actuator and the second actuator is brought into a driven state.

Abstract: A control system for controlling a work machine including a working unit including elements and actuators that drives the elements includes: a first hydraulic pump and a second hydraulic pump each of which supplies operating oil to at least one of the actuators; and a control device that calculates a distribution flow rate of operating oil distributed to each of the actuators based on an operating state of the working unit and switches, based on the calculated distribution flow rate, between a first state in which the operating oil supplied from both the first hydraulic pump and the second hydraulic pump is supplied to the actuators and a second state in which the actuator to which the operating oil is supplied from the first hydraulic pump is different from the actuator to which the operating oil is supplied from the second hydraulic pump.

Abstract: A drive device of a construction machine includes a pump passage connected to a hydraulic pump, first and second supply passages connected to the pump passage, first and second passages connected to the first supply passage, third and fourth passages connected to the second supply passage, a first valve connected to the first and third passages, a second valve connected to the second and fourth passages, a first bucket passage connecting the first passage to a cap-side space of the bucket cylinder through the first valve, a second bucket passage connecting the third passage to a rod-side space of the bucket cylinder through the first valve, a first arm passage connecting the second passage to a rod-side space of an arm cylinder through the second valve, and a second arm passage connecting the fourth passage to a cap-side space of the arm cylinder through the second valve.

Abstract: A communication control method which prevents control over a USB device from being hampered and reducing power consumption at the same time. When the USB device and a control apparatus, which controls the USB device, are connected to the printing apparatus, and a communication via the printing apparatus is being carried out, the printing apparatus and the USB device are not shifted into a power saving mode in which energization of the printing apparatus and the USB device is limited. When the USB device and the control apparatus are connected to the printing apparatus, and a communication via the printing apparatus is not being carried out, the printing apparatus and the USB device are shifted into the power saving mode.

Abstract: A control system includes: first and second hydraulic pumps; an opening/closing device provided in a passage connecting the first and second hydraulic pumps and configured to open and close the passage; a control device controlling the opening/closing device to switch between connected and unconnected states of the first and second hydraulic pumps; a first hydraulic cylinder to which hydraulic fluid from the first hydraulic pump is supplied in the unconnected state; and a second hydraulic cylinder to which hydraulic fluid from the second hydraulic pump is supplied in the unconnected state. The control device controls the opening/closing device to be in the connected state when distributed flow rates of the hydraulic cylinders are a predetermined supply flow rate or lower and a difference between a pressure in a rod-side space and a pressure in a cap-side space of the hydraulic cylinder is a defined value or smaller.

Abstract: A control system includes a cylinder pressure data acquisition unit that acquires cylinder pressure data indicating a pressure of operating oil of a hydraulic cylinder; an operation amount data acquisition unit that acquires operation amount data of an operating device; a pump flow rate calculation unit that calculates a first pump flow rate indicating a flow rate of the operating oil discharged from a first hydraulic pump and a second pump flow rate indicating a flow rate of the operating oil discharged from a second hydraulic pump in a splitting state in which a passage is closed based on the cylinder pressure data and the operation amount data; and a pump control unit that controls the first hydraulic pump and the second hydraulic pump based on the first pump flow rate and the second pump flow rate.

Abstract: A sponge roller is made of a polyvinyl acetal porous resin material having elasticity in a wet state, includes a roller in an approximate cylinder form and a plurality of protrusions formed integrally on an outer peripheral surface of the roller, and rotates the multiple protrusions to make contact with a surface to be cleaned so as to clean the surface. The polyvinyl acetal porous resin material constituting the sponge roller contains a cationic functional group.

Abstract: An information processing apparatus which is capable of maintaining the amount of radiation noise from a semiconductor integrated circuit constant. A voltage value information storage unit holds information indicative of a voltage to be applied to the semiconductor integrated circuit. A sub CPU modulates a clock frequency of a clock to be supplied to the semiconductor integrated circuit with a modulation width determined based on the information held in the voltage value information storage unit and supplies the clock.

Abstract: An image forming system that is capable of preventing obstruction of transmission of a packet to an information processing apparatus from a USB device supporting USBNW due to the shift to the sleep mode. The image forming system includes an information processing apparatus, an image forming apparatus with a sleep mode, and a USB device that is connected to the information processing apparatus through the image forming apparatus and is controlled by the information processing apparatus. The image forming apparatus includes a first determination unit that determines whether the USB device supports USBNW, a second determination unit that determines whether a packet received from the information processing apparatus is processed by a module supporting USBNW, and a control unit that prohibits the image forming apparatus from shifting to the sleep mode when the USB device supports USBNW and when the packet is processed by the module supporting USBNW.