摘要:
The number of conductor members in a first conductor member group and the number of conductor members in a second conductor member group are equal to each other. An inner terminal of each conductor member is displaced from an outer terminal of the same conductor member with respect to the circumferential direction of the corresponding conductor member group. Each outer terminal of the first conductor member group is displaced from a corresponding one of the outer terminals of the second conductor member with respect to the circumferential direction of the first conductor member group.
摘要:
A rotor shaft may include a base shaft member for structuring the rotor shaft, a lead screw formed on an outer peripheral face of the base shaft member, and a resin film which covers the lead screw. Further, a motor may include a rotor shaft that is formed with a lead screw on a peripheral face of the rotor shaft, and a flank face of the lead screw is coated with a resin film. Also, a motor may include a rotor shaft and a bearing which rotatably supports the rotor shaft, at least a sliding portion of the rotor shaft on the bearing is covered with a resin film. The resin film is preferably an electrodeposited film and may contain solid lubricant, filler and fluid adjustment agent.
摘要:
A rotation shaft includes a spiral groove for feeding which is formed on the outer peripheral face of the rotation shaft and a plurality of fine recessed parts which is formed on a flank surface of the spiral groove. The rotation shaft may be manufactured by a spiral groove forming step which forms a spiral groove on an outer peripheral face of the rotation shaft and a roughening step which forms a plurality of fine recessed parts on the flank surface of the spiral groove by using a first abrasive medium whose size is set to be capable of reaching to the flank surface. The rotation shaft may be preferably applied to a feeding device and a motor.
摘要:
A wiring method is provided, in which a wire conductor is stuck on a surface of a substrate by causing a three-dimensional relative movement between a wiring head for guiding the wire conductor and the substrate such that the wiring head relatively moves along an adhesive layer on the surface of the substrate and the wiring head and the adhesive layer intermittently come close to each other for point contact.
摘要:
A wiper motor has brushes slidable in contact with a commutator, choke coils connected in series with the brushes, and a circuit breaker for preventing burn-out caused by excessively high current. The circuit breaker is disposed in the vicinity of the choke coils and operates based on heat generated by the choke coils.
摘要:
A spindle and a position-limiting ridge protrude from an inner surface of a cover to rotatably support a follower made of an electrically conductive metal plate. A cylindrical engaging portion of the follower slidably engages the spindle. A toothed washer is fitted around the spindle to clamp a contact portion of the follower between the position-limiting ridge and the toothed washer in a rotatable manner. A switching pattern is provided in the inner surface of the cover. Contact terminals that engage and disengage with the switching pattern based on rotation of the follower are integrally formed in the follower. An engaging hole penetrates through the follower. An engaging protrusion on a carrier is received within the engaging hole. The follower is rotated through engagement between the engaging protrusion and the engaging hole when the carrier rotates in a forward rotational direction.
摘要:
An optical connector comprises a ring-shaped waveguide and a straight waveguide for introducing a light beam into the waveguide. These waveguides are arranged on a substrate in a manner such that the gap between their nearest positions is not longer than the wavelength of the light beam. The radius, width, thickness, and refractive index distribution of the ring-shaped waveguide are set so that a light beam with a wavelength .lambda.=2.pi.r/n (r and n are the radius of the ring-shaped waveguide and a certain natural number, respectively) continues to circulate therein. A grating having a cycle of 2.pi.r.lambda./(2.pi.r+.lambda.) or 2.pi.r.lambda./(2.pi.r-.lambda.] is formed on the surface of the ring-shaped waveguide.