Mitsuba Corporation

Gensaku Yamakami

Ryo Ohori

Naoki Shioda

A motor and a brushless wiper motor are provided. The motor () includes: a stator (); coils (); a shaft (); a rotor core (); magnets () which are disposed on an outer peripheral surface () of the rotor core () and a radial thickness of which at end portions () on both sides in the circumferential direction around the rotation axis is smaller than a radial thickness in a circumferential intermediate portion; and salient poles () that are formed between magnets () adjacent in the circumferential direction of the outer peripheral surface () of the rotor core () and protrude radially outward from the end portions () of the magnets () in the circumferential direction. The width dimensions of the salient poles () in the radial direction being set to 40&#xb0; or less in a form of an electrical angle.

Motor and brushless wiper motor

A driving apparatus which is capable of adjusting the forward and backward position and the height of a seat section by using a single motor to reduce the weight of the apparatus and simplify the structure. Nut members are mounted on operating threaded shafts which are rotated in normal or reverse by an electric motor so that the operating threaded shafts go through the nut members. A nut body constituting each nut member is structured so as to be engaged with one of first and second clutch members by a clutch operating member. In the first shift condition where the nut body is engaged with the first clutch body, power is turned on and the nut member moves back and forth relative to the operating threaded shaft. In the second shift condition where the nut is engaged with the second clutch body, power is turned off to hinder the movement of the nut member. The system of the apparatus is arranged so that the first nut members adjust the forward and backward position of the seat section and the second nut member adjusts the heights of the seat at the front and rear ends.

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Gunma, Japan

Gensaku Yamakami