118results about How to "Increase the rotation angle" patented technology

An improved rotation angle detecting device that detects a rotation angle of a first member relative to a second member is proposed. The rotation angle detecting device includes a magnet unit fixed to the first member and a pair of magnetic sensors fixed to the second member to provide output signals whose phase is different from each other at 90 degrees in angle. The magnet unit includes a pair of disk plates that has the same magnetic poles at the same circumferential positions and is disposed at a prescribed axial distance and a shaft that is made of magnetic material to support the disk plates at the center thereof. The magnetic unit provides a uniform magnetic field in a space around the shaft between the pair of disk plates, and a pair of magnetic sensors is disposed in the space.

An improved rotation angle detecting device that detects a rotation angle of a first member relative to a second member is proposed. The rotation angle detecting device includes a magnet unit fixed to the first member and a pair of magnetic sensors fixed to the second member to provide output signals whose phase is different from each other at 90 degrees in angle. The magnet unit includes a pair of disk plates that has the same magnetic poles at the same circumferential positions and is disposed at a prescribed axial distance and a shaft that is made of magnetic material to support the disk plates at the center thereof. The magnetic unit provides a uniform magnetic field in a space around the shaft between the pair of disk plates, and a pair of magnetic sensors is disposed in the space.

A motor which can be mounted in an endoscope probe without bending an electric power supply wire in an endoscope probe body, and an endoscope probe using the motor are provided. The motor includes a magnet, a field coil, a housing, an electric power supply wire, and a shaft. A lead wire from the field coil is connected to the electric power supply wire. A cutout is provided in a housing end, and the electric power supply wire is received along the cutout and led out to the outside of the motor in the direction in which a shaft projects. When the motor is mounted in the endoscope probe, the motor is placed in the endoscope probe body so that the shaft projects in the direction opposite to the direction of the front end of the endoscope probe, and the electric power supply wire, which is led out to the outside of the motor, is routed along the longitudinal direction of the endoscope probe.

An actuator includes a frame-shaped first mass portion; a supporting portion that supports the first mass portion and takes the shape of a frame so as to surround a perimeter of the first mass portion; a pair of first elastic portions coupling between the first mass portion and the supporting portion so that the first mass portion is supported by the supporting portion; a second mass portion provided inside the frame-shaped first mass portion; a pair of second elastic portions coupling between the second mass portion and the first mass portion so that the second mass portion is supported by the first mass portion; and a driver for rotating the first mass portion. The driver includes a ferromagnet provided on the first mass portion in a position separate from a rotation central axis of the first mass portion; a coil formed along the rotation central axis of the first mass portion and the supporting portion so as to surround and orbit a perimeter of the ferromagnet if the first mass portion is seen from above; and a voltage application unit for applying a voltage to the coil. An operation of the voltage application unit included in the driver causes the coil to generate a magnetic field. The generation of the magnetic field causes displacement of the ferromagnet relative to the coil. The displacement of the ferromagnet causes the first mass portion to rotate while torsionally deforming the pair of first elastic portions. The rotation of the first mass portion causes the second mass portion to rotate while torsionally deforming the pair of second elastic portions.

The invention relates to the technical field of shaves, in particular to a floating type shaver. The floating type shaver comprises a head portion, a housing, a main shell, a first floating component and a second floating component, wherein the first floating component is provided with a first through hole, and the second floating component is arranged in the first through hole. A second through hole is formed in the second floating component. A containing groove for containing the first floating component is further formed in the main shell in a sunken manner. A pair of first parent pivot-joint portions are arranged at the left side and the right side of the first floating component. A pair of first son pivot-joint portions matched with the first parent pivot-joint portions are arranged in the containing groove. A clamping component is further fixedly arranged at the bottom of the first floating component. The clamping component is provided with clamping pieces which extend into the front side and the rear side inside the first through hole in a protruding manner. The clamping pieces are provided with a pair of second parent pivot-joint portions. The second floating component is provided with a pair of second son pivot-joint portions matched with the second parent pivot-joint portions. A first elastic sleeving component is mounted between the first floating component and the containing groove, and a second elastic sleeving component is mounted between the second floating component and the housing. According to the floating type shaver, by means of the double son pivot-joint portions, the double parent pivot-joint portions and the double elastic sleeving components, 360-degree rotation can be achieved; and the effect achieved when the shaver is attached to the face in a floating manner is good.

A rotation angle detecting device includes a signal generator, a magnetic rotor and a rotation angle calculating unit that calculates a rotation angle θ of the rotor based on the output signals of the signal generator. The signal generator includes a magnetic rotor that has a permanent magnet and a shaft connectable with the rotating object and at least three magnetic sensor elements disposed in the magnetic field to generate a plurality of output signals when the rotor rotates. The rotation angle calculating unit calculates a first candidate of the rotation angle θ from a first pair of the three output signals, examines whether the first candidate of the rotation angle θ is normal or not and calculates a next candidate of the rotation angle θ from another pair of the three output signals if the first candidate of the rotation angle θ is not normal, examines whether the next candidate of the rotation angle θ is normal or not, repeats the above two steps until a next candidate of the rotation angle θ is judged normal, and outputs one of the first and next candidates of the rotation angle θ as a formal rotation angle if it is judged normal.

The invention provides a body turning-over mechanism of a nursing bed. The body turning-over mechanism of the nursing bed comprises a back turning-over mechanism, a buttock turning-over mechanism and a transmission mechanism. The back turning-over mechanism and the buttock turning-over mechanism are both fixedly connected with the transmission mechanism. The position, connected with the buttock turning-over mechanism, of the transmission mechanism is provided with a universal joint which is fixedly connected with the transmission mechanism. The back and the buttocks are turned over synchronously, the body turning-over action is harmonious, the body turning-over power is large, the body can be turned over at an angle by means of the body turning-over mechanism of the nursing bed, and therefore a patient can be more comfortable when turning over the body.

A rotation angle detecting device that detects a rotation angle of a rotating object includes a permanent magnet that generates magnetic fields in response to rotation of the rotating object, a magnetic sensor, a first yoke and a second yoke. The magnetic sensor includes a pair of close integrated magnetic sensing elements, such as hall elements, disposed at a position around the permanent magnet so that one of the sensing elements senses magnetic field at a phase different from the other. The first yoke and the second yoke forms two magnetic paths crossing each other at the magnetic sensor.

The invention relates to a continuous-rotation high-angular position accuracy digital motor. The continuous-rotation high-angular position accuracy digital motor includes a driving motor, a harmonic reducer, a magnetic encoder, a servo driving controller and a shell; the stator of the driving motor, the magnetic encoder and the servo driving controller are fixed on the shell; the first output end of the rotor of the driving motor is connected with one end of the harmonic reducer through screw threads; the other end of the harmonic reducer is the torque output end of the driving motor; magnets of the magnetic encoder are fixed to the second output end of the rotor of the driving motor; the input end of the servo driving controller is connected with the output end of the magnetic encoder; the output end of the servo driving controller is connected with external connection control signals; and the power supply end of the servo driving controller is connected with the input end of the driving motor. The rotation precision, rotation angle and output torque of the continuous-rotation high-angular position accuracy digital motor are higher than those of a general servo. The continuous-rotation high-angular position accuracy digital motor has the advantages of low cost, high precision and high output torque.

A vehicle, such as a motorcycle, can facilitate maintenance of an air cleaner without complicating a peripheral structure of a fuel tank. The vehicle can include a body frame, a rear arm attached to the body frame to support a rear wheel, a rear cushioning member provided between the body frame and the rear arm, and an engine fixed to the body frame. The vehicle can further include a fuel tank supported rotatably at a supporter arranged closer to a rear side of the vehicle than a substantially central position of an axis of the rear cushioning member.

A rotating mechanism for an electronic device has a stationary seat with a limiting recess, a limiting ring mounted through the stationary seat with inner and outer limits, a shaft mounted through the stationary seat and the limiting ring with a limiting protrusion. With the limiting protrusion pushing the inner limit and the outer limit sliding in the limiting recess, the shaft achieves two stages of rotation to enhance the rotating angle in both directions. Moreover, with the adjusting of the sizes of the components, the rotating mechanism may provide rotating angle by 360 to 700 degrees.

A two-dimensional comb-drive actuator and manufacturing method thereof are described. The two-dimensional comb-drive actuator includes a supporting base, a frame and a movable body. The supporting base has first comb electrodes and the frame has internal comb electrodes and external comb electrodes. The external comb electrodes of the frame are interdigitated to the first comb electrodes of the supporting base. The movable body has second comb electrodes which are interdigitated to the internal comb electrodes of the frame. The thicknesses of the second comb electrodes of the movable body are unequal to the internal comb electrodes of the frame and the external comb electrodes of the frame are unequal to the first comb electrodes of the supporting base. The two-dimensional comb-drive actuator utilizes a conducting layer for the above-mentioned comb electrodes in order to increase the rotation angle and operation frequency thereof.

A two-dimensional comb-drive actuator and manufacturing method thereof are described. The two-dimensional comb-drive actuator includes a supporting base, a frame and a movable body. The supporting base has first comb electrodes and the frame has internal comb electrodes and external comb electrodes. The external comb electrodes of the frame are interdigitated to the first comb electrodes of the supporting base. The movable body has second comb electrodes which are interdigitated to the internal comb electrodes of the frame. The thicknesses of the second comb electrodes of the movable body are unequal to the internal comb electrodes of the frame and the external comb electrodes of the frame are unequal to the first comb electrodes of the supporting base. The two-dimensional comb-drive actuator utilizes a conducting layer for the above-mentioned comb electrodes in order to increase the rotation angle and operation frequency thereof.