Abstract: A power inversion apparatus includes a smoothing capacitor, first and second primary coils, a secondary coil, first to fourth switches of bridge circuit switches, a clamp capacitor, and a switch controller. The switch controller calculates a lower-arm duty ratio of each of the first and second switches using a map or a mathematical expression by feed-forward control based on an input voltage. The switch controller outputs a fixed value that is equal to or greater than a maximum value of the lower-arm duty ratio within a variation range of the input voltage as an upper-arm duty ratio of each of the third and fourth switches. The switch controller generates a pulse width modulation signal based on the calculated lower-arm duty ratio and the fixed value of the upper-arm duty ratio, and outputs the pulse width modulation signal to the bridge circuit switches.

Abstract: A sheet binding processing apparatus includes a transport section transporting a bunch of sheets in a transport direction, a sheet discharge outlet to discharge the bunch of sheets transported from the transport section, a placement section to place the bunch of sheets discharged from the discharge outlet, a manual set section enabling a bunch of sheets inserted in a direction different from the transport direction to be set, a press member pressing the bunch of sheets placed on the placement section or on the manual set section to bind, a drive section applying a pressing force to the press member, and a control section controlling the drive section to make the pressing force applied to a binding member higher in the case of binding the bunch of sheets placed on the placement section than in the case of binding the bunch of sheets set from the manual set section.

Abstract: A sheet processing apparatus includes a conveying portion, a stack portion on which sheets are stacked, a first binding portion moving in a crossing direction crossing a conveying direction, a first regulating portion regulating a position of a sheet bundle stacked on the stack portion in the crossing direction, a first rack moving in the crossing direction with the first regulating portion, a first pinion forming a rack-pinion mechanism with the first rack, a second regulating portion regulating a position of a sheet bundle stacked on the stack portion in the crossing direction, a second rack moving in the crossing direction with the second regulating portion, a second pinion forming another rack-pinion mechanism with the second rack, a third regulating portion regulating a position of a sheet bundle stacked on the stack portion, and a second binding portion which binds a corner portion of a sheet bundle without a staple.

Abstract: A variable stiffness device includes a first elongated member including high-bending stiffness portions and a low-bending stiffness portion between adjacent high-bending stiffness portions, a second elongated member arranged along the first elongated member and including shape-memory members and a connecting member between adjacent shape-memory members, a heater to heat a shape-memory member in the low-bending stiffness portion to increase the bending stiffness, and a moving mechanism to move the second elongated member relative to the first elongated member. When the heater heats a first shape-memory member in the low-bending stiffness portion, a second shape-memory member next to the first shape-memory member is arranged in a high-bending stiffness portion.

Abstract: A sheet processing apparatus includes a conveying portion, a stack portion on which sheets are stacked, a first binding portion moving in a crossing direction crossing a conveying direction, a first regulating portion regulating a position of a sheet bundle stacked on the stack portion in the crossing direction, a first rack moving in the crossing direction with the first regulating portion, a first pinion forming a rack-pinion mechanism with the first rack, a second regulating portion regulating a position of a sheet bundle stacked on the stack portion in the crossing direction, a second rack moving in the crossing direction with the second regulating portion, a second pinion forming another rack-pinion mechanism with the second rack, a third regulating portion regulating a position of a sheet bundle stacked on the stack portion, and a second binding portion which binds a corner portion of a sheet bundle without a staple.

Abstract: A sheet processing apparatus includes a conveying portion, a stack portion which stacks sheets, a first regulating portion which regulates a position of a sheet bundle in a crossing direction crossing to a conveying direction, a second regulating portion which regulates a position of a sheet bundle in the conveying direction, a first binding portion which moves from a first side to a second side and binds a corner portion of a sheet bundle by a staple, a second binding portion which binds a corner portion of a sheet bundle without a staple. The second binding portion includes a first face having a plurality of projections and a second face having a plurality of concave grooves matching the plurality of projections. A sheet bundle is bound by pressing the first face and the second face.

Abstract: To facilitate permeation of water when water is applied to the crimping range of a sheet made of a water-permeable paper material. A binding unit applies water to placed sheets and then crimp-binds the sheets. The binding unit includes a pair of pressure teeth (pressure teeth and receiving teeth part) provided on both the front and back sides of the sheets and configured to crimp-binding the sheets, a water reservoir provided on the back surface side of any one of the pressure teeth and configured to store water to be applied to the sheet, and a pressurizing member (piston) that pressurizes the water in the water reservoir to apply water to the sheet crimping range.

Abstract: A sheet processing apparatus includes a conveying portion, a first stack portion on which sheets conveyed are stacked, a first regulating portion which regulates a position of a sheet bundle in a crossing direction crossing to the sheet transport direction, a second regulating portion which regulates a position of a sheet bundle in the conveying direction, a first binding portion binding a corner portion of the sheet bundle by a staple, a second binding portion which binds a corner portion of a sheet bundle without a staple, a second stack portion which stacks a sheet bundle discharged from the first stack portion, and a lifting-lowering motor which lifts and lowers the second stack portion. The lifting-lowering motor is located at a downstream, in the conveying direction, of a first binding position where the first binding portion binds a sheet bundle.

Abstract: To facilitate permeation of water when water is applied to the crimping range of a sheet made of a water-permeable paper material. A binding unit applies water to placed sheets and then crimp-binds the sheets. The binding unit includes a pair of pressure teeth (pressure teeth and receiving teeth part) provided on both the front and back sides of the sheets and configured to crimp-binding the sheets, a water reservoir provided on the back surface side of any one of the pressure teeth and configured to store water to be applied to the sheet, and a pressurizing member (piston) that pressurizes the water in the water reservoir to apply water to the sheet crimping range.

Abstract: A casting device is provided that carries out casting by supplying molten metal to a cavity (formed inside a casting die in a state in which a core pin is disposed in the casting die. The device casting is provided with a temperature detector and a cooling controller. The temperature detector detects the temperature of the core pin at a predetermined time at an end of one casting cycle. The cooling controller applies cooling energy to the core pin and controls an amount of cooling energy applied to the core pin during a next casting cycle according to the temperature that is detected by the temperature detector.

Abstract: A variable-stiffness actuator is to be installed into a flexible member and provide different degrees of stiffness to the flexible member. The actuator includes two hard members located apart from each other, and a shape-memory member connecting the hard members. The shape-memory member has a property of transitioning in phase between a first phase and a second phase. The shape-memory member is in a low stiffness state when in the first phase, and is in a high stiffness state when in the second phase. The actuator also includes a inducing member configured to cause a portion of the shape-memory member between the hard members to transition in phase between the first and second phases, and a urging member configured to urge the hard members in directions away from each other.

Abstract: In inverter control for supplying power to a motor, a power conversion device includes a temperature sensor for detecting a temperature of the inverter, a voltage sensor for detecting a voltage between terminals of a capacitor that smooths the voltage between terminals between the power source and the inverter, an inverter controller for controlling the inverter, a rotation speed sensor for detecting a rotation speed of the motor, an electric current sensor for detecting electric current supplied to the motor and a discharge determination instruction controller for giving an instruction for discharging electric charges accumulated in the capacitor, in which, control of reducing the rotation speed of the motor and discharge control of the capacitor are performed in accordance with the temperature of the inverter, the rotation speed of the motor and the electric current supplied to the motor.

Abstract: A power conversion device includes a backup power source as a power source for a discharge controller that discharges electric charges of a capacitor, and an abnormal state in the backup power source or loads is not capable of being dealt with when power is supplied to loads from the backup power source, which makes an output voltage of the backup power source be in an abnormal state. In order to solve the problem, when an abnormality occurs in the backup power source or in loads and the abnormality is detected in power supply from the backup power source, a place where the abnormality occurs is specified. When the specified place where the abnormality occurs is a load, power supply to the load is stopped, thereby preventing the output voltage of the backup power source from being abnormal even when an abnormality occurs in part of power supply destinations.

Abstract: In a power conversion apparatus, a controller calculates a duty ratio being a ratio of an on-duration of each of bridge-circuit switches configured by first to fourth switches to a switching period, and outputs a gate signal to each of the bridge-circuit switches. The controller adjusts the duty ratio of each of the bridge-circuit switches such that a switch-current difference becomes closer to a value obtained by multiplying an input-current difference by the predetermined target ratio that is a value greater than 0 and less than 1. The switch-current difference is a difference between a first switch current and a second switch current or a difference between a third switch current and a fourth switch current detected by a switch-current sensor at predetermined timings in the switching period. The input-current difference is a difference between input currents detected by an input-current sensor simultaneously with detection timings of switch currents.

Abstract: In a power conversion apparatus, a controller calculates a duty ratio being a ratio of an on-duration of each of bridge-circuit switches configured by first to fourth switches to a switching period, and outputs a gate signal to each of the bridge-circuit switches. The controller adjusts the duty ratio of each of the bridge-circuit switches such that a switch-current difference becomes closer to a value obtained by multiplying an input-current difference by the predetermined target ratio that is a value greater than 0 and less than 1. The switch-current difference is a difference between a first switch current and a second switch current or a difference between a third switch current and a fourth switch current detected by a switch-current sensor at predetermined timings in the switching period. The input-current difference is a difference between input currents detected by an input-current sensor simultaneously with detection timings of switch currents.

Abstract: An electric power system of the vehicle includes: first power lines which are connected to a high-voltage battery; second power lines, which are connected to a direct-current input-output side of a first inverter; a second smoothing condenser, which is arranged on the second power lines; a low-voltage DCDC converter, which is connected in parallel with the high-voltage DCDC converter to the first power lines; and a drive circuit, which drives a switching element of the low-voltage DCDC converter; the second power lines and the drive circuit are connected by a third power line, and on the third power line, a voltage-reducing device, which reduces a voltage of electric power from the second smoothing condenser and supplies the electric power to the drive circuit to consume the electric power by the drive circuit.

Abstract: An electric power system of a vehicle includes: a high-voltage circuit, which includes a high-voltage battery connected to a main circuit; a system ECU, which controls the main circuit; a first system control power line, which connects a low-voltage battery to the system ECU; a second system control power line, which connects the high-voltage circuit to the first system control power line; a voltage-reducing device, which reduces a voltage of the electric power from the high-voltage circuit; a second switch, which is arranged on the second system control power line; and a backup power supply ECU, which turns the second switch off when a pre-charge of smoothing condensers arranged on the main circuit is performed by supplying the electric power of the high-voltage battery.

Abstract: A programmable controller system includes a control device; a functional device including a buffer memory and a general-purpose logic unit; and a peripheral device that creates a user program. The peripheral device includes a circuit setting unit, which sets operation data indicating the operation of a logic of the general-purpose logic unit; and a circuit-control-parameter setting unit, which sets a circuit control parameter representing the relation between a buffer memory address indicating an address in the buffer memory and a logic address indicating an address in the logic. The functional device includes a circuit control unit that transfers the operation data to the logic address on the basis of the specified buffer memory address and the circuit control parameter.

Abstract: A sheet processing device has a binding unit that applies water to a crimping range of sheets and then crimps the sheets. The sheet processing device includes a processing tray on which sheets are placed, a pair of pressure teeth (pressure teeth and receiving teeth) that crimps the sheets placed on the processing tray at a crimping position with the sheets interposed therebetween, and a water application member (cylinder and piston) that applies water to the crimping position before crimping by the pressure teeth. When the number of sheets placed on the processing tray is equal to or less than a predetermined number, the sheets are crimped by the pressure teeth without water application; while when the number of sheets placed on the processing tray exceeds the predetermined number, the sheets are crimped by the pressure teeth after water application.

Abstract: To facilitate permeation of water when water is applied to the crimping range of a sheet made of a water-permeable paper material. A binding unit applies water to placed sheets and then crimp-binds the sheets. The binding unit includes a pair of pressure teeth (pressure teeth and receiving teeth part) provided on both the front and back sides of the sheets and configured to crimp-binding the sheets, a water reservoir provided on the back surface side of any one of the pressure teeth and configured to store water to be applied to the sheet, and a pressurizing member (piston) that pressurizes the water in the water reservoir to apply water to the sheet crimping range.