Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Reexamination Certificate
2006-05-30
2006-05-30
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Automatic and/or with time-delay means
Movement, position, or limit-of-travel
C318S266000, C318S286000
Reexamination Certificate
active
07053574
ABSTRACT:
As a vertical motion motor (M2) comprised of a brushless motor is driven to rotate in response to a control signal from a main controller (10), a pulse signal generated with the shape corresponding to the number of rotations of the vertical motion motor (M2) is counted by a pulse signal count unit of the main controller (10). Feedback control is exercised over the number of rotations of the vertical motion motor (M2) in accordance with a count value (the number of counts) of the pulse signal, so that mirror surface orientation of a door mirror (2) can be accurately adjusted to tilt downward to a predetermined set angle, and to tilt upward back to a home position angle. A mirror angle control apparatus (1) is provided with high durability and reliability, which can exercise accurate control for a long period of time.
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Murakami Corporation
Ro Bentsu
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