Abstract: A rotor includes first and second rotor cores, a disk magnet, and a rectifying magnet. The first and second rotor cores each include a core base and claw-poles. The disk magnet is magnetized in the axial direction so that the claw-poles of the first rotor core function as first poles and the claw-poles of the second rotor core function as second poles. The rectifying magnet includes at least an inter-pole magnet portion or a back-surface magnet portion. The inter-pole magnet portion is located in a gap formed in the circumferential direction between the claw-poles of the first rotor core and the claw-poles of the second rotor core. The back surface magnet portion is located in a gap formed at back surfaces of the claw-poles. The rectifying magnet and the disk magnet are formed from different materials. The rectifying magnet is integrated with the disk magnet in a post-process.

Abstract: A living support system connected to a chair including a movable seat through a communication network includes a robot including a main body, a moving device that moves the main body in a freestanding state, a handle provided at the main body and gripped by a user, and a handle load detector that detects a handle load applied to the handle by the user; a support control device that controls seat movement for a stand-up motion of the sitting user, using the detected handle load; and a communicator that transmits support control information including a movement speed at which the chair moves the movable seat, to the chair through the communication network. The support control device includes a seat speed calculator that calculates a speed at which the movable seat is inclined with respect to a floor on which the chair is placed, as the movement speed using the detected handle load.

Abstract: A rotor of a motor includes first and second rotor cores, a field magnet, and a commutator magnet. The first and second rotor cores each include a core base and a plurality of claw poles. The claw poles of the first rotor core and the claw poles of the second rotor core are alternately arranged in a circumferential direction. The field magnet is located between the core bases. The field magnet is magnetized in an axial direction so that the claw poles of the first rotor core and the claw poles of the second rotor core function as different magnetic poles in the circumferential direction. The commutator magnet is located on an outer circumference of the field magnet around the claw poles. The commutator magnet is magnetized so that surfaces having the same polarity face each other between the claw poles and the commutator magnet.

Abstract: A motor includes a shaft, a rotor, and a stator. The rotor includes first and second rotor cores, and a field magnet. Second claw magnetic pole portions of second rotor core are arranged between first claw magnetic pole portions of the first rotor core. The field magnet causes the first claw magnetic pole portions to function as first magnetic poles, and the second claw magnetic pole portions to function as second magnetic poles. Radially inner surfaces of the teeth of a stator core face radially outer surfaces of the first and second claw magnetic poles. Either radially outer surfaces of the first and second claw magnetic pole portions or radially inner surfaces of the teeth each have a cross-sectional shape in a direction orthogonal to the axial direction that is not concentric to a circle of which center is an axis of the rotation shaft.

Abstract: A rotor includes a first rotor core, a second rotor core, a field magnet, and an auxiliary magnet. The first rotor core includes a first core base and a plurality of first hook-shaped poles. The second rotor core includes a second core base and a plurality of second hook-shaped poles. The first and second hook-shaped poles are alternately arranged in a circumferential direction of the rotor. The field magnet is arranged between the first and second core bases in an axial direction. The field magnet cause the first hook-shaped poles to function as first poles and the second hook-shaped poles to function as second poles. The auxiliary magnet includes at least two interpolar magnet portions, which are integrally formed. Each interpolar magnet portion is arranged in a void between the first hook-shaped pole and the second hook-shaped pole and magnetized in the circumferential direction.

Abstract: A rotor includes a first rotor core, a second rotor core, a field magnet, and an adhesive. The first rotor core includes a first core base, having a first magnet fixing surface, and a plurality of first claw-poles. The second rotor core includes a second core base having a second magnet fixing surface, and a plurality of second claw-poles. The field magnet includes a first axial end face and a second axial end face. At least one of the first magnet fixing surface and the first axial end face includes a first adhesive recess that receives an adhesive. At least one of the second magnet fixing surface and the second axial end face includes a second adhesive recess that receives the adhesive.

Abstract: A rotor includes a first rotor core, a second rotor core, a field magnet, and an auxiliary magnet. The first rotor core includes a first core base and a plurality of first hook-shaped poles. The second rotor core includes a second core base and a plurality of second hook-shaped poles. The first and second hook-shaped poles are alternately arranged in a circumferential direction of the rotor. The field magnet is arranged between the first and second core bases in an axial direction. The field magnet cause the first hook-shaped poles to function as first poles and the second hook-shaped poles to function as second poles. The auxiliary magnet includes at least two interpolar magnet portions, which are integrally formed. Each interpolar magnet portion is arranged in a void between the first hook-shaped pole and the second hook-shaped pole and magnetized in the circumferential direction.

Abstract: A rotor having an axial direction includes at least a pair of rotor cores arranged in the axial direction, and a field magnet located between the rotor cores and magnetized in the axial direction. Each of the rotor cores includes a plurality of claw poles extending in the axial direction. Each of the rotor cores includes a magnetic flux controlling section, which appropriately causes a magnetic flux to flow to the claw poles.

Abstract: A rotor includes a field member arranged between a first core base of a first rotor core and a second core base of a second rotor core in the axial direction. When magnetized in the axial direction, the field member causes primary claw-shaped magnetic poles to function as primary magnetic poles and secondary claw-shaped magnetic poles to function as secondary magnetic poles. The field member is formed by placing a plurality of members one over another in the axial direction.

Abstract: A motor includes a stator, a rotor, a case, and back-surface magnet portions. The rotor has a first rotor core, a second rotor core and a field magnet. Each of the first and second rotor cores has a core base and claw-shaped magnetic poles. The field magnet is sandwiched between the first rotor core and the second rotor core and causes the claw-shaped magnetic poles of the first rotor core and the second rotor core to function as different magnetic poles. The back-surface magnet portions include a second and a first back-surface magnet portions respectively provided on the back surfaces of the claw-shaped magnetic poles of the second rotor core and the first rotor core. Size of the second back-surface magnet portion differs from size of the first back-surface magnet portion are different from each other.

Abstract: A rotor includes first and second rotor cores, a field magnet, and an annular magnet. The first and second rotor cores each include a core base and core magnetic poles. The core magnetic poles are provided on an outer peripheral portion of the core base at equal intervals. The core bases are faced with each other. The core magnetic poles are alternately arranged in a peripheral direction. The annular magnet is a resin molding product including a magnetic pole magnet portion and an inter-pole magnet portion. The annular magnet has a non-contact portion not in contact with the first and second rotor cores. A gate mark portion in injection molding of the annular magnet is arranged in the non-contact portion.

Abstract: A rotor having an axial direction includes at least a pair of rotor cores arranged in the axial direction, and a field magnet located between the rotor cores and magnetized in the axial direction. Each of the rotor cores includes a plurality of claw poles extending in the axial direction. Each of the rotor cores includes a magnetic flux controlling section, which appropriately causes a magnetic flux to flow to the claw poles.

Abstract: A motor includes a stator, a rotor, and a case. The stator includes a stator core and windings. The rotor is provided inside the stator. The rotor includes first and second rotor cores and a field magnet. The first and second rotor cores each includes a core base and claw-shaped magnetic poles. The core bases are opposed to each other and the claw-shaped magnetic poles of the first and second rotor cores are alternately disposed in a circumferential direction. The field magnet is disposed between the core bases in the axial direction. The field magnet is magnetized in the axial direction so as to cause the claw-shaped magnetic poles of the first rotor core and the second rotor core to function respectively as first magnetic poles and second magnetic poles. At least part of an end part of the case in the axial direction is made of a non-magnetic body.

Abstract: There is provided a motor including a rotor and a stator arranged outside the rotor in the radial direction. The rotor includes a rotor core, a plurality of magnets arranged at equal intervals in the circumferential direction of the rotor core and functioning as one magnetic pole, and salient poles integrated with the rotor core, each arranged between adjacent magnets and at a distance from the magnets. The salient poles function as the other magnetic pole. A stator has a stator core having a plurality of teeth extending in the radial direction of the stator and arranged at equal intervals in the circumferential direction, and multi-phase coils attached to the teeth.

Abstract: A rotor includes a first rotor core, a second rotor core, a first magnet, a second magnet, and an annular magnet. The first magnet is arranged between first extensions of the first rotor core. The annular magnet, which is arranged between second extensions of the second rotor core, is held between the first core base and the second core base. The first magnet and the second magnet are formed integrally.

Abstract: A rotor includes first and second rotor cores, a field magnet, interpole magnets and holding members. The first and second rotor cores each have claw-like magnetic poles arranged in the circumferential direction in an outer periphery of a core base at even intervals and formed to protrude radially outward. The field magnet is placed between the core bases in the axial direction of the rotor and magnetized in the axial direction to cause the magnetic poles of the first and second rotor cores to function as first and second magnetic poles, respectively. The interpole magnets are each arranged between a circumferentially adjacent pair of the magnetic poles and magnetized in the circumferential direction so as to have the same polarity as the magnetic poles, which are opposed thereto in the circumferential direction. The holding members hold the interpole magnets to restrict radially outward movement of the interpole magnets.

Abstract: A rotor includes first and second rotor cores, a disk magnet, and a rectifying magnet. The first and second rotor cores each include a core base and claw-poles. The disk magnet is magnetized in the axial direction so that the claw-poles of the first rotor core function as first poles and the claw-poles of the second rotor core function as second poles. The rectifying magnet includes at least an inter-pole magnet portion or a back-surface magnet portion. The inter-pole magnet portion is located in a gap formed in the circumferential direction between the claw-poles of the first rotor core and the claw-poles of the second rotor core. The back surface magnet portion is located in a gap formed at back surfaces of the claw-poles. The rectifying magnet and the disk magnet are formed from different materials. The rectifying magnet is integrated with the disk magnet in a post-process.

Abstract: A rotor is provided with a first rotation member having a plurality of first claw poles in a circumferential direction and a second rotation member having a plurality of second claw poles in a circumferential direction. By of fitting each second claw pole in a cutout portion between first claw poles and by fitting each first claw pole in a cutout portion between second claw poles, the first rotation member and the second rotation member are assembled to each other. At least either one of the first rotation member and the second rotation member is formed of a magnet. Based on a magnetic field generated by the magnet, the first claw poles and the second claw poles have alternating north poles and south poles in the circumferential direction.

Abstract: A rotor includes at least one of a group of one or more auxiliary magnets that are located between first and second claw poles in a circumferential direction and magnetized to be magnetic poles of the same polarity as the first and second claw poles and another group of one or more auxiliary magnets that are located on a rear side of the first and second claw poles and magnetized to have radially outer portions of the same polarity as the first and second magnetic poles. The auxiliary magnets are arranged to protrude beyond at least one of axial end surfaces of the first and second core bases.

Abstract: A rotor includes first and second rotor cores and a field magnet placed between the first and second rotor cores. Each of the rotor cores has a main body portion and a plurality of extensions, which extend radially outward from the main body portion at equal intervals in the circumferential direction. The field magnet causes the individual extensions to function as magnetic poles. A magnetic pole constituting section including at least part of each of the extensions and the first main body portion of each rotor core are made of different materials, made of the same material but formed as separate elements, or includes regions having different properties.