Abstract: An electrically drivable device includes a device body including an actuator and a handle attachable to and detachable from the device body. The handle includes a connector separably connectable with the device body, a pressure receiver displaceable in response to a gripping force with which the user grips the handle, a magnet control mechanism configured to operate a permanent magnet in conjunction with the displacement of the pressure receiver, and a frame holding the pressure receiver in such a manner that the pressure receiver is displaceable, and containing the magnet control mechanism. The device body includes a magnetic sensor configured to, in response to the pressure receiver being displaced with the handle attached to the device body, detect magnetism that the permanent magnet applies through the connector.

Abstract: A distance sensor module includes a distance sensor and a housing. The distance sensor includes a sensor body and a transmission and reception section connected to the sensor body and configured to emit a detection signal toward a measurement target and receive the detection signal as reflected by the measurement target. The distance sensor is configured such that the sensor body is configured to measure the distance between the distance sensor and the measurement target as a result of the transmission and reception section receiving the detection signal. The housing includes a sensor container section containing the distance sensor, and an attachment section configured to attach the sensor container section to an external attachment target. The sensor container section is configured to keep the transmission and reception section so oriented due to gravity as to have a vertically downward detection direction with the attachment section attached to the attachment target.

Abstract: A sound producing device in which an adhesive layer between a piezoelectric element and a metal plate has sufficient electrical conductivity includes: a metal plate; a piezoelectric ceramic including a first adhesion surface, the first adhesion surface being a surface bonded to the metal plate; an alternating current power supply that applies an alternating voltage to the piezoelectric ceramic; and an adhesive layer formed from conductive adhesive and thermosetting adhesive which are spread over the first adhesion surface, the conductive adhesive being applied in a center portion of the first adhesion surface and the thermosetting adhesive being applied at three or more locations in a periphery of the first adhesion surface. An adhesion surface of the metal plate that is bonded to the piezoelectric ceramic is a second adhesion surface, and the first adhesion surface and the second adhesion surface are bonded together by the adhesive layer.

Abstract: A sensing device including a sensitive part and a first sensor. The sensitive part includes a sealed internal space. At least part of the sensitive part is flexible and configured to be flexed, by a load applied on the sensitive part or by vibration of the sensitive part, so as to change an air pressure in the internal space. The first sensor borders the internal space or is at least partly housed in the internal space. The first sensor includes at least one sensing part configured to detect changes in the air pressure in the internal space.

Abstract: The fluid sensing device including a sensitive part, at least one obstacle, and a sensor. The sensitive part includes a flexible portion extending in a second direction substantially orthogonal to a first direction or fluid flow direction. The at least one obstacle extends in the second direction and is located in spaced relation to, and upstream of, the flexible portion. A collision of the fluid with the at least one obstacle generates vortexes in the fluid alternately on opposite sides in a third direction relative to the at least one obstacle, so that one or more of the vortexes collide with the flexible portion so as to distort at least part of the flexible portion. The third direction is substantially orthogonal to the first and second directions. The sensor includes at least one sensing part to detect the distortion of the flexible portion as a flow of the fluid.

Abstract: A sound producing device in which an adhesive layer between a piezoelectric element and a metal plate has sufficient electrical conductivity includes: a metal plate; a piezoelectric ceramic including a first adhesion surface, the first adhesion surface being a surface bonded to the metal plate; an alternating current power supply that applies an alternating voltage to the piezoelectric ceramic; and an adhesive layer formed from conductive adhesive and thermosetting adhesive which are spread over the first adhesion surface, the conductive adhesive being applied in a center portion of the first adhesion surface and the thermosetting adhesive being applied at three or more locations in a periphery of the first adhesion surface. An adhesion surface of the metal plate that is bonded to the piezoelectric ceramic is a second adhesion surface, and the first adhesion surface and the second adhesion surface are bonded together by the adhesive layer.

Abstract: A torque wrench having ease of operation compatible with improved accuracy of measurement. The torque wrench includes a tightening portion, a housing having a front side cover part and a back side grip part and a shaft-like strain body that is contained inside the housing. First distortion sensors and second distortion sensors are arranged on the strain body at spaced points in the axial direction of the strain body for measuring an amount of distortion of the strain body. A microprocessor chip has functions including computation of a tightening torque which is corrected for errors due to changes in a point of effort where a tightening force is applied by a user. The correction is based on the detection result of the first distortion sensors and the second distortion sensors. An output portion outputs the corrected tightening torque measurement value.

Abstract: The invention seek to enable to share main components other than a tightening unit even in use for different effective lengths corresponding to ranges of tightening torques. There are provided: a tightening unit 10 such as a ratchet; a housing 20 having a two-divided structure including a front side cover part 21 and a back side grip part 22; a strain body 30 provided inside the housing 20 and replaceably coupling the tightening unit 10 thereto; a distortion sensor 40, provided to the strain body 30, for detecting the distorted amount of the strain body 30 due to the tightening force of the tightening unit 10; a microprocessor chip 100 having functions including computing the tightening torque of the tightening unit 10 based on torque reference values prepared in advance and detection results of the distortion sensor 40; and an output unit 300 for outputting such as the tightening torque.

Abstract: [Problem to be Solved] The invention aims at ease of operation compatible with improved accuracy of measurement. [Constitution] The invention includes a tightening portion 10 such as a ratchet wrench, a housing 20 having a front side cover part 21 and a back side grip part 22, a shaft-like strain body 30 that is contained inside the housing 20 and has a leading end coupled with the replaceable tightening portion 10, first distortion sensors 42a and 42b and second distortion sensors 43a and 43b that are arranged at spaced points in the axial direction of the strain body 30 for measuring a tightening torque T, a setting portion 70 for setting a tightening torque set value etc.

Abstract: The invention seek to enable to share main components other than a tightening unit even in use for different effective lengths corresponding to ranges of tightening torques. There are provided: a tightening unit 10 such as a ratchet; a housing 20 having a two-divided structure including a front side cover part 21 and a back side grip part 22; a strain body 30 provided inside the housing 20 and replaceably coupling the tightening unit 10 thereto; a distortion sensor 40, provided to the strain body 30, for detecting the distorted amount of the strain body 30 due to the tightening force of the tightening unit 10; a microprocessor chip 100 having functions including computing the tightening torque of the tightening unit 10 based on torque reference values prepared in advance and detection results of the distortion sensor 40; and an output unit 300 for outputting such as the tightening torque.