Abstract: A torque sensor supporting device capable of preventing bending moment other than torque from occurring to a torque sensor and improving the detection accuracy of the torque sensor. A first supporting body is provided to a base serving as a first mounting section of a robot. A second supporting body is coupled to a second structure of a torque sensor including a first structure provided to the base, the second structure coupled to a first arm serving as a second mounting section, third structures provided between the first structure and the second structure, and at least two sensor sections provided between the first structure and the second structure. Rotating bodies are provided between the first supporting body and the second supporting body.

Abstract: A first supporting body is provided to a base serving as a first mounting section. A second supporting body is joined to a second structure of a torque sensor including a first structure provided to the base, the second structure coupled to a first arm serving as a second mounting section, third structures provided between the first structure and the second structure, and at least two sensor portions provided between the first structure and the second structure. Third supporting bodies are provided between the first supporting body and the second supporting body, are movable in a torque direction of the torque sensor, and the movement of the third supporting bodies in a direction other than a torque is suppressed.

Abstract: In a force sensor, a cylindrical movable body can be moved with respect to a cylindrical main body. A strain body is fixed to the main body and the movable body, and can be deformed in accordance with the movement of the movable body. Strain sensors are provided on the strain body. At least three circular openings are provided in the circumferential surface of the movable body at equal intervals. Stoppers are respectively arranged inside the openings, and each of which includes a first side surface having a first outer diameter smaller than an inner diameter of the opening, and a second side surface having a second outer diameter smaller than the first outer diameter. Fixing members fix the stoppers to the main body.

Abstract: The torque sensor of the present embodiments comprises a first structure to be coupled to an object to be measured, a second structure, a first bridge circuit including a plurality of first strain sensors configured to detect force to be transmitted between the first structure and the second structure, a second bridge circuit including a plurality of second strain sensors configured to detect force to be transmitted between the first structure and the second structure, and a controller configured to output a signal indicating an abnormality when a difference between a first output voltage of the first bridge circuit and a second output voltage of the second bridge circuit is greater than a first threshold voltage.

Abstract: A blower device includes a housing including an intake chamber, an accommodation chamber communicating with the intake chamber, and an exhaust port, a motor provided in the accommodation chamber and including a coil, a fan provided on a rotating shaft of the motor, a sealing member configured to seal up the intake chamber, and a flow path of the air which is introduced into a gap between a first surface of the fan and the housing, is returned from a flow path hole provided in the housing and communicating with the intake chamber to an opening, and is introduced to a second surface of the fan opposed to the first surface by an air-blowing operation of the fan.

Abstract: An embodiment is to provide a strain sensor fixing device and torque sensor using the same capable of preventing the sensor performance from being deteriorated, and preventing the device configuration from being upsized, and further capable of securely fixing the strain sensor to a structure. A fixing member includes a first end and a second end. The first end is provided with a projection which contacts a first structure and the second end contacts a first end of a strain body provided on the first structure. A screw is inserted into the first structure and screwed into a part of the fixing member between the first end and the second end.

Abstract: A highly accurate torque sensor is provided by reducing the size of the shape. A torque sensor comprises a fourth structure and a fifth structure provided between a first structure and a second structure, a first strain sensor provided on the fourth structure, and a second strain sensor provided on the fifth structure. Each of the fourth structure and the fifth structure comprises a first connection section connected to one end of the first strain sensor or the second strain sensor, a second connection section connected to the other end of the first strain sensor or the second strain sensor, and a third connection section and a fourth connection section provided between the first connection section and the second connection section and possessing stiffness lower than the first connection section and the second connection section.

Abstract: A torque sensor which can detect a torque with high accuracy is provided. First structure and second structure are connected by a plurality of third structures. First and second strain sensors are connected between the first structure and the second structure. Each of the first and second strain sensors includes a strain body connected between the first structure and the second structure and a plurality of sensor elements provided on the strain body. The sensor elements are disposed in a region of one side of each of the first structure and the second structure with respect to a longitudinal central portion of the strain body, and the region on the one side is a region where there is only a little difference in strain between along a torque direction of the strain body and a torque-excepted direction.

Abstract: The present invention is a coreless coil characterized in that a plurality of ?-winding coils are formed by a first coil layer and a second coil layer that has a same shape and a same width as the first coil, each coil layer having a center opening, being laminated together. Each outer peripheral portion in a connection direction of the plurality of ?-winding coils has a connection stepped portion that is point-symmetric in relation to a center axis line of a Z-axis (the Z-axis being an axis that, in relation to an X-axis that is a center of both connected end portions of the ?-winding coil and passes through a lamination boundary line of the first coil layer and the second coil layer, is a center of both unconnected end portions of the ?-winding coil and passes through the lamination boundary surface such as to be orthogonal to the X-axis) of the respective center opening.

Abstract: A metallic base member includes a holding section and a first flange. A sensor chip on which sensor element is arranged is provided on the holding section. An insulating adjusting member is provided on the holding section around the sensor chip and a circumference thereof is positioned between a circumference of the holding section and a circumference of the first flange. A metallic housing includes an opening section and a second flange, an inner surface of the opening section is brought into contact with the circumference of the adjusting member, and the second flange is joined to the first flange.

Abstract: According to one embodiment, a CPAP device includes a housing, a fan, and a sound absorbing material. The housing has a first air inlet and a first air outlet, and a flow channel guiding air sucked through the first air inlet to the first air outlet. The fan has a second air inlet and a second air outlet, the second air inlet is disposed in the direction intersecting the flow channel, and the second air outlet is disposed in the direction along the flow channel. The sound absorbing material is provided with a recess constituting a part of the flow channel and facing the second air inlet of the fan, the recess having a diameter which is greater than a diameter of the second air inlet of the fan and which is equal to or smaller than the width of the flow channel.

Abstract: In a motor, a dynamic pressure gas bearing is prevented from seizing when the motor shaft and a sleeve contact each other. The number of rotations of a rotating body with respect to a case is maintained substantially constant both before and after contact. Auxiliary bearings are arranged in series with the gas bearing. A non-contact detent torque generation mechanism in parallel with the auxiliary bearings suppresses rotation in the auxiliary bearings. The sum of a predetermined detent torque generated by the torque generation mechanism during a rotation suppression time and the friction torque of the auxiliary bearings is smaller than the magnitude of an adhesion-time contact friction torque generated when the motor shaft and sleeve adhere to each other and is greater than the magnitude of a rotation-time viscous friction torque of the dynamic pressure gas bearing while the motor shaft and sleeve are spaced from each other.

Abstract: A magnetic bearing includes a ring-shaped first magnet, a ring-shaped second magnet, a first magnetic body and a second magnetic body. The ring-shaped first magnet is magnetized in an axial direction. The ring-shaped second magnet is concentrically arranged with the first magnet and is magnetized in the axial direction. The first magnetic body is provided on a first surface in the axial direction of the second magnet. The second magnetic body is provided on a second surface parallel to the first surface in the axial direction of the second magnet. A thickness of each of the first magnetic body and the second magnetic body is less than or equal to an acceptable fluctuation amount in the axial direction of the second magnet with respect to the first magnet and greater than or equal to 0.1 mm.

Abstract: This speed reducer with an electric motor has: a hollow shaft; a casing fixed to the hollow shaft; a fixed part that is relatively stationary with respect to the casing; an electric motor; a speed reduction mechanism; an output part; and a torque sensor that is connected to the casing and the fixed part. The torque sensor has an elastically deformable strain body that has an annular outer ring and an annular inner ring and a plurality of strain sensors. The outer ring and the inner ring are respectively located at an end portion on the radial outside and the radial inside of the torque sensor and is connected to one of the casing and the fixed part. Each of the plurality of strain sensors is at least partially located in a radial direction between the outer ring and the inner ring.

Abstract: In a force sensor according to one embodiment, a main body is cylindrical. A cylindrical movable body is movable with respect to the main body and includes at least three circular openings in the outer circumference thereof. A strain body is fixed to the main body and the movable body and is deformable according to the movement of the movable body. Strain sensors are provided on the strain body. A first stopper is arranged inside each of the openings and includes a first outer circumferential surface including a first outer diameter less than a diameter of the opening. Sealing members are configured to cover at least the openings and a movable part between the main body and the movable body.

Abstract: In a force sensor according to one embodiment, a main body is cylindrical. A cylindrical movable body is movable with respect to the main body and includes at least three circular openings in the outer circumference thereof. A strain body is fixed to the main body and the movable body and is deformable according to the movement of the movable body. Strain sensors are provided on the strain body. A first stopper is arranged inside each of the openings and includes a first outer circumferential surface including a first outer diameter less than a diameter of the opening. A cylindrical second stopper is arranged separate from a first inner circumferential surface of the main body by a first distance and includes a second outer circumferential surface of a second outer diameter less than a diameter of the first inner circumferential surface.

Abstract: In a force sensor according to one embodiment, a main body is cylindrical. A cylindrical movable body is movable with respect to the main body and includes at least three circular openings in the outer circumference thereof. A strain body is fixed to the main body and the movable body and is deformable according to the movement of the movable body. Strain sensors are provided on the strain body. A first stopper is arranged inside each of the openings and includes a first outer circumferential surface including a first outer diameter less than a diameter of the opening. A cylindrical second stopper is arranged separate from a first inner circumferential surface of the main body by a first distance, includes a second outer circumferential surface of a second outer diameter less than a diameter of the first inner circumferential surface.

Abstract: According to one embodiment, a housing includes a first accommodator and a second accommodator separated by a partition wall which has an opening in a portion thereof. A contact mechanism includes a fixed contact plate and a common terminal, accommodated in the first accommodator, and a movable contact arm placed on the common terminal to be contactable to the fixed contact plate. The operator includes a slider, a button, and a substantially spherical stopper. The slider includes one end portion inserted in the opening so as to be slidable on the movable contact arm. The button is provided in the other end portion of the slider, and the stopper is provided between the one end portion and the other end portion of the slider. The O-ring is provided on the partition wall around the opening, and the stopper is brought into contact with the O-ring.

Abstract: A strain body according to the embodiment includes a central portion, an outer peripheral portion surrounding the central portion, connecting portions connecting the central portion and the outer peripheral portion, first and second strain sensors provided on main surfaces of the connecting portions, reference resistors provided on a main surface of the central portion, and constructing a bridge circuit with the first strain sensors, and a full bridge circuit which is provided on the main surfaces of the connecting portions and in which a pair of the serially connected second strain sensors are connected in parallel.

Abstract: A strain body according to the embodiments includes a central portion, an outer peripheral portion, connecting portions each includes a first connecting portion adjacent to the outer peripheral portion and a second connecting portion adjacent to the central portion, strain sensors provided on main surfaces of the connecting portions, reference resistors provided on a main surface of the central portion, and a strain increasing portion configured to increase strain occurring at the first connecting portion more than strain occurring at the second connecting portion, on a back surface side opposed to the main surface of the first connecting portion.