Abstract: A pressure sensor has a convexly curved surface shape and includes: a capacitive sensor electrode layer including a plurality of sensing parts; a first reference electrode layer having elasticity and facing a first surface of the sensor electrode layer; a second reference electrode layer having elasticity and facing a second surface of the sensor electrode layer; an elastic layer having elasticity and provided between the first reference electrode layer and the sensor electrode layer; and a gap layer having elasticity and provided between the second reference electrode layer and the sensor electrode layer. The sensor electrode layer includes: a curved part; and a plurality of extension parts extending from a concavely curved side of the curved part. The extension parts include the sensing parts.

Abstract: A power tool, such as a grinder, may include: a prime mover such as a motor; a power-transmission mechanism operably connected to the prime mover; a housing that houses the prime mover and the power-transmission mechanism; and a tool-accessory retaining part for holding a tool accessary. The tool-accessory retaining part is operably connected to the power-transmission mechanism. An accessory is mounted on the housing in a detachable manner. A link member moves in response to mounting and demounting of the accessory. A detection sensor is housed in an interior of the housing and includes a non-contact sensor device. The detection sensor is configured to detect movement of the link member using the non-contact sensor device.

Abstract: A machining program conversion device includes: a numerical control simulation unit that generates a numerical control processing result by simulating numerical control processing that is controlled by the machining program; a modification part detection unit that detects a modification part based on a modification condition and the numerical control processing result, the modification condition for determining whether there is a modification part; a modification section determination unit that designates consecutive blocks including the modification part as a modification section; a cutting point calculation unit that identifies, based on the machining program, the machining target shape, and the tool information, a cutting point of the tool with respect to the machining target shape; and a machining program modification unit that modifies, based on the machining program, the modification section, and the cutting point, the movement command related to the modification section such that the cutting point does

Abstract: A machine learning device includes a data extraction unit that extracts first and second parameters from a plurality of machining programs. The machining programs numerically control a machine tool. The first parameter is a parameter to be adjusted, and the second parameter is a parameter used to adjust the first parameter. The machine learning device also includes a machine learning unit that learns a value of the first parameter according to a data set that includes the first and second parameters.

Abstract: The disclosure discloses an electric power tool. The electric power tool may include a motor, a power transmission mechanism connected to the motor, a housing that houses the motor and the power transmission mechanism, an end tool holder to which an end tool is configured to be attached and from which the end tool is configured to be detached, and connected to the power transmission mechanism, and a handle attached to the housing. The electric power tool may be configured to prohibit rotation of the motor when a user is not gripping the handle.

Abstract: A power tool includes a spindle, a housing, a cover body configured to be removably mounted to the housing, a first engagement part provided on or in the cover body, and a second engagement part provided on or in the housing. The cover body includes an upper plate part and an outer peripheral part. The second engagement part is movable between an engagement position and a disengagement position. The first and second engagement parts are configured to restrict rotation of the cover body around the drive axis relative to the housing by engaging with each other. The first engagement part is (i) at a same location as or radially outward of the outer peripheral part of the cover body in a radial direction orthogonal to the drive axis, and (ii) between an upper end and a lower end of the cover body in the up-down direction.

Abstract: A power tool having a rotary hammer mechanism is configured to produce hammering motion for driving a tool accessory along a driving axis and rotating motion for rotating the tool accessory around the driving axis. The power tool has a tool holder that is configured to removably hold the tool accessory. The tool holder has a rotation transmitting part configured to transmit rotating power to the tool accessory. A layer formed of carbide of a group 5 element of a periodic table is formed on the rotation transmitting part.

Abstract: A machining-process generation device includes: a process-instance storage section to store therein a process instance that is an instance of a machining process indicating machining details of each machining-operation unit; a process generation section to generate a machining process on a basis of the process instance and a generation condition for the machining process, and to generate background information indicating a background to generation of the machining process, the background information including information of the process instance used to generate the machining process; and a display section capable of displaying the background information on a display device.

Abstract: A pressure sensor has a convexly curved surface shape and includes: a capacitive sensor electrode layer including a plurality of sensing parts; a first reference electrode layer having elasticity and facing a first surface of the sensor electrode layer; a second reference electrode layer having elasticity and facing a second surface of the sensor electrode layer; an elastic layer having elasticity and provided between the first reference electrode layer and the sensor electrode layer; and a gap layer having elasticity and provided between the second reference electrode layer and the sensor electrode layer. The sensor electrode layer includes: a curved part; and a plurality of extension parts extending from a concavely curved side of the curved part. The extension parts include the sensing parts.

Abstract: The disclosure discloses an electric power tool. The electric power tool may include a motor, a power transmission mechanism connected to the motor, a housing that houses the motor and the power transmission mechanism, an end tool holder to which an end tool is configured to be attached and from which the end tool is configured to be detached, and connected to the power transmission mechanism, and a handle attached to the housing. The electric power tool may be configured to prohibit rotation of the motor when a user is not gripping the handle.

Abstract: A machining program conversion device includes: a numerical control simulation unit that generates a numerical control processing result by simulating numerical control processing that is controlled by the machining program; a modification part detection unit that detects a modification part based on a modification condition and the numerical control processing result, the modification condition for determining whether there is a modification part; a modification section determination unit that designates consecutive blocks including the modification part as a modification section; a cutting point calculation unit that identifies, based on the machining program, the machining target shape, and the tool information, a cutting point of the tool with respect to the machining target shape; and a machining program modification unit that modifies, based on the machining program, the modification section, and the cutting point, the movement command related to the modification section such that the cutting point does

Abstract: A power tool having a rotary hammer mechanism is configured to produce hammering motion for driving a tool accessory along a driving axis and rotating motion for rotating the tool accessory around the driving axis. The power tool has a tool holder that is configured to removably hold the tool accessory. The tool holder has a rotation transmitting part configured to transmit rotating power to the tool accessory. A layer formed of carbide of a group 5 element of a periodic table is formed on the rotation transmitting part.

Abstract: A machine learning device includes: a data extraction unit that extracts a first parameter and a second parameter from each of a plurality of machining programs for numerically controlling a machine tool, the first parameter being a parameter to be adjusted, the second parameter being a parameter to be used for adjusting the parameter to be adjusted; and a machine learning unit that learns a value of the first parameter according to a data set including the first parameter and the second parameter extracted by the data extraction unit.

Abstract: A power supply system includes a wearing part worn on a hand of a worker, a connecting member held by the wearing part, and a control circuit. The connecting member is disposed at a position where it is attached to a tool-side attachment part provided on a grip of a power tool when the worker grips the grip. The connecting member includes, in an exposed manner, a power source terminal that supplies electric power to the power tool and a signal terminal that receives a response signal from the power tool, which are electrically connected to the power tool in an attached state where the connecting member is attached to the tool-side attachment part. The control circuit makes the power source terminal and a power source unit electrically continuous when the signal terminal receives the response signal and makes them electrically discontinuous when the signal terminal receives no response signal.

Abstract: A power tool, such as a grinder, may include: a prime mover such as a motor; a power-transmission mechanism operably connected to the prime mover; a housing that houses the prime mover and the power-transmission mechanism; and a tool-accessory retaining part for holding a tool accessary. The tool-accessory retaining part is operably connected to the power-transmission mechanism. An accessory is mounted on the housing in a detachable manner. A link member moves in response to mounting and demounting of the accessory. A detection sensor is housed in an interior of the housing and includes a non-contact sensor device. The detection sensor is configured to detect movement of the link member using the non-contact sensor device.

Abstract: The purpose of the present invention is to provide a lead-free glass composition in which crystallization is suppressed and which has a low softening point. This lead-free glass composition is characterized by containing silver oxide, tellurium oxide and vanadium oxide, and further containing at least one compound selected from among yttrium oxide, lanthanum oxide, cerium oxide, erbium oxide, ytterbium oxide, aluminum oxide, gallium oxide, indium oxide, iron oxide, tungsten oxide and molybdenum oxide as an additional component, and in that the content values (mol %) of silver oxide, tellurium oxide and vanadium oxide satisfy the relationships Ag2O>TeO2?V2O5 and Ag5O?2V2O5 when calculated in terms of the oxides, and in that the content of TeO2 is 25-37 mol. %.

Abstract: A processing step data generating apparatus includes: a processing procedure data group storage unit that stores a plurality of pieces of processing procedure data each including data defining a processing unit, which is a unit of a processing step, and processing order data of the processing unit defined by the data defining the processing unit; a processing procedure selection unit; and a processing step generation unit that determines a processing shape for the processing unit on the basis of the data defining the processing unit included in the processing procedure data selected by the processing procedure selection unit as well as product and material data to generate processing unit data, and generates processing step data from the processing unit data being generated.

Abstract: The purpose of the present invention is to provide a neutron-absorbing material which has high neutron absorption performance, is less apt to suffer structural degradation caused by irradiation with neutrons or ? rays, and has satisfactory water resistance. The glass composition according to the present invention is characterized by containing Gd2O3, B2O3, CeO2, and Bi2O3 when the components are expressed in terms of oxide, the total amount of Gd2O3 and B2O3 being 65 mol % or greater in terms of oxide amount.

Abstract: A power supply system includes a wearing part worn on a hand of a worker, a connecting member held by the wearing part, and a control circuit. The connecting member is disposed at a position where it is attached to a tool-side attachment part provided on a grip of a power tool when the worker grips the grip. The connecting member includes, in an exposed manner, a power source terminal that supplies electric power to the power tool and a signal terminal that receives a response signal from the power tool, which are electrically connected to the power tool in an attached state where the connecting member is attached to the tool-side attachment part. The control circuit makes the power source terminal and a power source unit electrically continuous when the signal terminal receives the response signal and makes them electrically discontinuous when the signal terminal receives no response signal.

Abstract: A tool-path correcting apparatus includes a cut-point calculating unit that calculates, on the basis of tool path data, tool data, and shape data, cut point information, which is information concerning cut points by a tool on a machining curved surface of a machining shape at the time when the tool is disposed at command points described in the tool path data, a correction-command-point extracting unit that extracts, on the basis of the tool path data and the cut point information, correction command points, which are command points that should be corrected, from command points described in the tool path data, a command-point-correcting-direction determining unit that determines, on the basis of the correction command points, command point correcting directions, which are directions in which the correction command points should be corrected, and a tool-path-data correcting unit that corrects the tool path data.