Abstract: To provide an outer rotor type motor capable of suppressing the runout of a top surface by improving the strength in a fitted part between a rotor yoke and a rotor shaft and suppressing resonance between vibration generated by rotation of a rotated body to be a load and motor vibration to thereby realize noise reduction. A rotor yoke is configured so that a rotor hub is fitted to a top surface portion formed in a cup shape integrally with a rotor shaft, and a reinforcing hub concentrically fixed to the rotor shaft with the rotor yoke is arranged so as to overlap the rotor hub.

Abstract: To provide an outer rotor type motor capable of suppressing the runout of a top surface by improving the strength in a fitted part between a rotor yoke and a rotor shaft and suppressing resonance between vibration generated by rotation of a rotated body to be a load and motor vibration to thereby realize noise reduction. A rotor yoke is configured so that a rotor hub is fitted to a top surface portion formed in a cup shape integrally with a rotor shaft, and a reinforcing hub concentrically fixed to the rotor shaft with the rotor yoke is arranged so as to overlap the rotor hub.

Abstract: To provide an outer rotor type motor including a rotor magnet capable of reducing a cogging torque for realizing smooth rotation of a rotor and having good durability and weatherability. A rotor magnet is arranged so as to be divided into plural segment magnets on an inner peripheral surface of a rotor yoke in a circumferential direction, an anisotropic magnet having parallel orientation is used as each segment magnet and a central portion of a magnetic-flux generation surface facing a magnetic-flux action surface of a stator pole tooth is formed in a convex surface where an interval with respect to the stator pole tooth is the smallest.

Abstract: An automatic opening/closing apparatus for vehicle including a detected subject and a detection sensor for detecting rotation of an output shaft is downsized. A worm gear mechanism decelerating a rotation speed of an electric motor to output it from the output shaft is accommodated in a gear case, and a drum is fixed to a tip portion of the output shaft projecting from the gear case to the outside, whereby motive power of the output shaft is transmitted from this drum to a sliding door. A concave portion centering at an axial center and recessed in an axial direction is formed in a worm wheel constituting the worm gear mechanism, a magnet unit constituting a rotation sensor is disposed inside the concave portion of the worm wheel, and a magnetic sensor for detecting rotation of the magnet unit is fixed to an inner surface of the gear case.

Abstract: An automatic opening/closing apparatus for vehicle including a detected subject and a detection sensor for detecting rotation of an output shaft is downsized. A worm gear mechanism decelerating a rotation speed of an electric motor to output it from the output shaft is accommodated in a gear case, and a drum is fixed to a tip portion of the output shaft projecting from the gear case to the outside, whereby motive power of the output shaft is transmitted from this drum to a sliding door. A concave portion centering at an axial center and recessed in an axial direction is formed in a worm wheel constituting the worm gear mechanism, a magnet unit constituting a rotation sensor is disposed inside the concave portion of the worm wheel, and a magnetic sensor for detecting rotation of the magnet unit is fixed to an inner surface of the gear case.

Abstract: A wiper blade 4 is movably arranged along a glass surface 3. Piezoelectric elements 6a and 6b comprise a piezoelectric ceramic and apply vibration to the wiper blade 4. Owing to this vibration, the wiper blade 4 moves by itself on the glass surface 3. The piezoelectric elements 6a and 6b are provided on the wiper blade 4, its tip, etc. Since the wiper blade 4 moves by itself, there is no need for an electromagnetic motor or a link mechanism to drive the wiper blade. It is possible to provide a small and light-weight wiper apparatus or improve the layout. Accordingly, the wiper apparatus can be mounted on a narrow and small place such as a glass hatch or a convertible's rear window.