Abstract: An ultrasonic transducer of this invention includes a rigid substrate with opening parts extending between bottom and top surfaces, a flexible resin film fixed to the top surface of the substrate to cover the opening parts, and piezoelectric elements fixed to a top surface of the resin film so as to overlap in a plan view with the opening parts, respectively. An arrangement pitch of the piezoelectric elements is preferably set to be equal to or less than 4.3 mm, and the piezoelectric element may have a rectangular shape in the plan view having longitudinal and lateral dimensions in the plan view with a maximum value of 4.0 mm or less, a circular shape in the plan view having a diameter of 4.0 mm or less, or an elliptical shape in the plan view having a major axis of 4.0 mm or less.

Abstract: A current sensor that can reduce an installation area and improve measurement accuracy has a busbar through which current to be measured flows and a magnetic sensor that detects a magnetic field component generated by the current flowing through the busbar. The busbar can have left and right through-holes which can change the flow of the current to be measured. The magnetic sensor can be mounted on the upper surface of the busbar and can be screw-fixed to the upper surface of the busbar using the left and right through-holes.

Abstract: In a gait motion assisting apparatus of the present invention, a thigh phase angle calculating unit calculating a thigh phase angle divides an unnormalized hip joint angle obtained based on a angle-related signal from a thigh orientation detecting unit by a stored hip joint angle normalization coefficient to calculate a normalized hip joint angle, divides an unnormalized hip joint angular velocity obtained by differentiating the unnormalized hip joint angle by a stored hip joint angular velocity normalization coefficient to calculate a normalized hip joint angular velocity, and calculate the thigh phase angle by using the normalized hip joint angle and the normalized hip joint angular velocity.

Abstract: According to a manufacturing method of the present invention, it is possible to manufacture a busbar assembly in an efficient manner, the busbar assembly including busbars disposed in parallel in a common plane and an insulative resin layer including a gap filling portion filled into a gap between the adjacent busbars and a bottom-surface-side laminated portion extending integrally from the gap filling portion and arranged on bottom surfaces of the busbars, a top surface of the busbar being at least partially exposed to form a top-surface-side connection portion, the bottom surface of the busbar including a first bottom surface region which is located at the same position in a thickness direction as a lower end portion of the gap and on which the bottom-surface-side laminated portion is arranged and a second bottom surface region located farther away from the top surface than the first bottom surface region and exposed to the outside to form a bottom-surface-side connection portion.

Abstract: A gait motion assisting apparatus is provided, in which a thigh phase angle calculating unit has a latest data transmission process to transmit a thigh phase angle ?(k) at sampling timing S(k) (k is an integer of 1 or more) to a gait motion timing calculating unit and store the same as a reference thigh phase angle ?c. Also, a stored data transmission process transmits, instead of the thigh phase angle ?(k), a currently stored reference thigh phase angle ?c to the gait motion timing calculating unit and performs the stored data transmission process only when conditions are satisfied such that a thigh phase angle at one sampling timing is smaller than the currently stored reference thigh phase angle and an absolute value of a deviation therebetween is equal to or less than a predetermined threshold, and performs the latest data transmission process in other cases.

Abstract: In a magnetic head suspension, a main body region of a flexure substrate is fixed to a load beam part at plural welding points including F/L first and second welding points respectively arranged on distal and proximal sides of a position of a LB bending that reduces a gain of a torsion vibration of the load beam part. In a case where a length of a flat region in the suspension longitudinal direction is represented by F, the flat region extending between an end position on the distal side of the bending at the LB bending position and the F/L first welding point is represented by F, and a length between the F/L first welding point and a supporting arm welding point is represented by D, a condition of 0.02?F/D?0.05 is met.

Abstract: A bus bar which can be easily identified as having generated abnormal heat has an interior formed hollow and is made of heat-shrinkable resin. A bus bar main body is inserted into the hollow, and an identification member that can identify abnormal heat generation when the insulator is heat-shrunk due to the abnormal heat generation is provided in the hollow. Also, in fixing a part of the insulator to the bus bar main body, the insulator is fixed to the bus bar main body by heat-shrinking both end sides of the insulator so as not to come in contact with a left bolt hole and a right bolt hole.

Abstract: A busbar assembly of the present invention includes a plurality of busbars disposed in parallel in a common plane with a gap between adjacent busbars, and an insulative resin layer including a gap filling part and a first surface-side laminate part, the first surface-side laminate part having a plurality of first surface-side center openings that expose predetermined parts of first surfaces of the plurality of busbars respectively to form a plurality of exposure regions, the insulative resin layer being formed by an insulative resin material that is transparent in a half-cured state and nontransparent in a completely cured state.

Abstract: A current detector that can provide redundancy has a bus bar through which a current to be measured flows from a right side surface toward a left side surface. A shunt resistor and a magnetic sensor which detect the current by different detection methods are provided on a path of the bus bar through which the current flows. The shunt resistor allows the current flowing through the bus bar to flow through a resistive element and detects the magnitude of the current from a voltage across the resistive element. The magnetic sensor detects a magnetic-field component generated by the current flowing through the bus bar.

Abstract: A shunt resistor the resistive value of which can be lowered simply and easily has: a first resistive body, two base materials that sandwich the first resistive body therebetween and are joined by a welding to the first resistive body, and a second resistive body joined by a welding to the two base materials at different positions from the first resistive body. In addition, the second resistive body can come into contact with the first resistive body.

Abstract: A busbar assembly of the present invention includes first and second busbars disposed in parallel in a common plane with a gap therebetween, and an insulating resin layer including a gap filling part and an upper surface laminated part, the upper surface laminated part having a first busbar-side upper surface opening that exposes a predetermined area of the upper surfaces of the first busbar and the gap filling part that straddles a boundary therebetween, and a second busbar-side upper surface opening that exposes a predetermined area of the upper surfaces of the second busbar and the gap filling part that straddles a boundary therebetween, a part of the upper surface laminated part between the first and second busbar-side upper surface openings forming a partitioning wall.

Abstract: A shunt resistor the resistive value of which can be lowered simply and easily has: a first resistive body, two base materials that sandwich the first resistive body therebetween and are joined by a welding to the first resistive body, and a second resistive body joined by a welding to the two base materials at different positions from the first resistive body. In addition, the second resistive body can come into contact with the first resistive body.

Abstract: A shunt resistor having improved temperature characteristics has a resistive body, a pair of base materials integrally formed on the resistive body across the resistive body, and measurement terminals fixed onto the base materials. The base materials have a plurality of cutout portions along a longitudinal direction of the base materials, wherein the plurality of cutout portions do not communicate with each other and are provided in a stepped manner.

Abstract: A gait motion assisting apparatus of the present invention can be connected to a knee-ankle-foot orthosis at three different positions in a vertical direction by upper, intermediate and lower connecting mechanisms. The intermediate connecting mechanism includes a ball stud arranged at the knee-ankle-foot orthosis extending outward in the user width direction on a brace-side pivot axis line X and an accommodation depression opened toward the knee-ankle-foot orthosis on the actuator-side pivot axis line Y so that the ball stud can be inserted thereinto. The accommodation depression is arranged at an innermost power-transmitting member among a driving arm and components of a transmission mechanism operatively transmitting rotational power from an electric motor to the driving arm.

Abstract: An actuator unit of the present invention includes upper and lower frames respectively connectable to a thigh frame and a lower leg frame, an actuator-side rotational connecting part connecting both frames in a rotatable manner around a pivot axis, a driver producing driving force for rotating the lower frame around the pivot axis, upper and lower connecting bodies respectively connecting the upper frame to the thigh frame and the lower frame to the lower leg frame, and an intermediate connecting body connecting the vicinity of the actuator-side rotational connecting part to the vicinity of a brace-side rotational connecting part, the intermediate connecting body having a ball stud and an accommodation depression respectively provided on one and the other of the knee-ankle-foot orthosis and the actuator unit.

Abstract: In the coil spring of the present invention, a helical space defined by a space between coils has a first end region whose space is increased as it extends towards the other side in the axial direction from a first reference point where the space is zero, a reference region whose space is set at a reference value L (L>0), and a second end region whose space becomes narrow as it extends toward the other side in the axial direction and zero at a second reference point. The first end region is configured such that the number of turns of the helical space is greater than 1 and the space between coils in a terminal position is greater than the reference value L.

Abstract: The present invention provides an actuator-equipped knee ankle foot orthosis in which a control device calculates a thigh phase angle based on an angle-related signal detected by a thigh orientation detecting means at one sampling point, applies the thigh phase angle at that sampling point to an assisting force control data, which is stored in the control device in advance and indicates the relationship between the thigh phase angle and a size of the assisting force to be imparted to a lower leg-side brace, to obtain the size of the assisting force to be imparted to the lower leg-side brace at that sampling point, and executes operational control for an actuator unit such that the assisting force having the size is output.

Abstract: A gait motion assisting apparatus of the present invention includes an actuator unit controlling driver so that assisting force calculated by applying gait motion timing based on detected thigh phase angle to output pattern saved data is imparted to lower leg, and a terminal device capable of wireless-communicating with control device of the actuator unit. The terminal device can receive assisting force setting value including assisting force imparting period during gait cycle and create, based on the assisting force setting value, output pattern setting data indicating a relationship between the gait motion timing and a size of assisting force to be imparted to the lower leg. The control device is configured to overwrite-save the output pattern setting data received from the terminal device as the output pattern saved data.

Abstract: The gait motion assisting device according to the present invention replicates movement of user's leg including thigh and lower leg around hip joint by pendulum movement of a rod-like rigid body, estimates hip joint angle and hip joint angular velocity of thigh calculated based on equation of motion of the pendulum movement by a state estimator using angle-related signal received from a thigh orientation detecting means as the observation, calculates the thigh phase angle using the estimated hip joint angle and the estimated hip joint angular velocity, and outputs assisting force having torque value calculated based on the thigh phase angle.

Abstract: A coil spring of this invention includes a first end coil part with a first bearing surface facing to the first side in the axial direction, a second end coil part with a second bearing surface facing to the second side in the axial direction and a central coil part connecting the first and second end coil parts. A displacement length in the axial direction from the outer end portion until the inner end portion of the first end coil part is a thickness of a spring wire forming the coil spring so that a space between the outer end portion of the first end coil part and an inner end portion of the central coil part is zero, and a displacement length in the axial direction between the outer end portion of the first end coil part and a point away along the circumferential direction from the outer end portion toward the inner end portion of the first end coil part by a half of turn around the axial line is less than a half of the thickness of the spring wire.