Abstract: A tool changer includes at least one tool changer unit, wherein the at least one tool changer unit includes: a tool holder that receives and holds a tool; a base member that supports the tool holder so that the tool holder can be slid along a longitudinal direction of the tool; and a moving mechanism that slides the tool holder relative to the base member.

Abstract: A numerical control device that is integrated with a display unit or is separated from and connected with a display unit includes: a control board including a control processor configured to perform numerical control; and a slot configured to allow for selective insertion of either a graphic board provided with an image processor to control the display unit that is integrated with the numerical control device, or an interface board connected with a communication cable for communication with the display unit that is separated from and connected to the numerical control device.

Abstract: A fan unit is detachably attached on a side face of a housing, a heating element is housed in the housing, and the fan unit includes a fan configured to be detachably attached to the fan unit. The fan unit is configured to detachably support the fan so that when the fan unit is attached to the housing, directions in which the fan is attached to and detached from the fan unit are made different from directions in which the fan unit is attached to and detached from the housing.

Abstract: A controller is detachably attached to a back face of a display device. The controller includes: a housing; a control unit housed in the housing and configured to control the display device; a connecting part configured to electrically connect the control unit to the display device; a fan configured to cool the control unit; and a fan attaching structure provided on the housing and configured to detachably attach the fan to the housing.

Abstract: A display-equipped controller includes a display device, a first junction configured to electrically connect the display device and a main board, a radiator disposed opposite from the display device with respect to the main board, an attaching structure attaching the main board and the radiator to the display device, a support structure disposed between the display device and the main board and configured to detachably support a control board, and a second junction configured to electrically connect the main board and the control board supported by the support structure.

Abstract: A numerical control device includes a multicore CPU for outputting a position command value of a servomotor, an ASIC including a servo controller, which outputs a current command value to an amplifier for driving the servomotor, and another processor, and a DSP for reading the position command value and controlling the servomotor such that the servomotor moves to a position indicated by the position command value. The CPU and the ASIC are connected through a plurality of serial interfaces.

Abstract: A tool changer includes at least one tool changer unit, wherein the at least one tool changer unit includes: a tool holder that receives and holds a tool; a base member that supports the tool holder so that the tool holder can be slid along a longitudinal direction of the tool; and a moving mechanism that slides the tool holder relative to the base member.

Abstract: A numerical control device includes a multicore CPU for outputting a position command value of a servomotor, an ASIC including a servo controller, which outputs a current command value to an amplifier for driving the servomotor, and another processor, and a DSP for reading the position command value and controlling the servomotor such that the servomotor moves to a position indicated by the position command value. The CPU and the ASIC are connected through a plurality of serial interfaces.

Abstract: A file system of a controller includes a first nonvolatile memory capable of storing a file body and first and second management information indicating storage states of the file body and a second nonvolatile memory in which first and second flags indicating write states of the first and second management information and which can quickly access. Then, when power-off occurs during data writing, when the power-off occurred is determined from states of the first and second flags stored in the second nonvolatile memory and judges whether data is normally written.

Abstract: A data storage system including a processor configured to execute a plurality of tasks, wherein the processor is configured to generate writing status information based on the data relevant information and otre the data relevant information and the writing status information in association with each other in the nonvolatile memory when the processor write data in the recording medium based on demand of the task and writing to the recording medium is configured to be controlled based on the data relevant information and the write-in status information stored in nonvolatile memory.

Abstract: A control rod for a BWR according to the present invention comprises a first unit composed of a tie rod, a handle mounted on an axially upper portion of the tie rod and a lower support member or falling speed limiter mounted on a axially lower portion of the tie rod; and a second unit composed of a sheath containing therein reactivity control material, an upper end plate mounted on an axially upper portion of the sheath and a lower end plate mounted on an axially lower portion of the sheath, wherein an upper portion of the upper end plate is fixed to the handle, a lower portion of the lower end plate is fixed to the lower support member or falling speed limiter, whereby the control rod is constructed as a joined body of the first unit and the second unit.

Abstract: A control rod for a BWR according to the present invention comprises a first unit composed of a tie rod, a handle mounted on an axially upper portion of the tie rod and a lower support member or falling speed limiter mounted on a axially lower portion of the tie rod; and a second unit composed of a sheath containing therein reactivity control material, an upper end plate mounted on an axially upper portion of the sheath and a lower end plate mounted on an axially lower portion of the sheath, wherein an upper portion of the upper end plate is fixed to the handle, a lower portion of the lower end plate is fixed to the lower support member or falling speed limiter, whereby the control rod is constructed as a joined body of the first unit and the second unit.

Abstract: To reduce the manufacturing processes of a control rod and shorten the time required for manufacturing a control rod, for the lower part support member 7, the thin parts 11A and 11B are formed in the neighborhood of each of the left and right sides of the window 8. In the left and right sides of the pull-up handle 9, the grooves 17A and 17B are formed respectively. The groove 17B is deeper than the groove 17A. The thin part 11A is fitted into the groove 17A and the thin part 11B is fitted into the groove 17B. The gap formed between the end of the thin part 11B and the bottom of the groove 17B is larger than the gap formed between the end of the thin part 11A and the bottom of the groove 17A. Therefore, the thin part 11A can be simply fitted into the groove 17A.

Abstract: The present invention relates to a control rod installed in a boiling water reactor (BWR), and particularly to a control rod using metal. An object of the present invention is to provide a manufacturing method of a control rod for a boiling water reactor, having excellent corrosion resistance in high temperature water and excellent wear resistance at the time of fabrication, and in which the influence of the manufacturing process is slight. In order to achieve the above described object, the present invention provides a manufacturing method of a control rod for a boiling water reactor constructed with sheaths having a U-shaped cross section attached to each end of a tie rod having a cruciform cross section, and rod, plate or oval tube cross section metal hafnium type neutron absorber material contained inside the sheaths, in which an anodized film is provided on a surface of the neutron absorber material as a pre-process of assembly of the neutron absorber material in the structure of the control rod.

Abstract: A method and an apparatus for controlling a reactor refuelling machine including a plurality of grippers comprised of a plurality of telescopic bars which are telescopically actuatable independently of each other and at least one gripping member mounted to each telescopic bar. A decision is made as to whether the movement of a particular gripper in the Z direction is constrained by a status of the movement of a different gripper. The parallel operation is performed when the movement of the particular gripper in the Z direction is not constrained and when constrained, the particular gripper is placed in condition for waiting.