Actuator apparatus

An actuator apparatus, comprising a rotating shaft supported in a freely rotating condition, a rotor magnet consisting of a permanent magnet which is polarized at two poles and is fastened to the rotating shaft; means for defining a first rotational position when the rotating shaft rotates in one di...

Full description

Saved in:
Bibliographic Details
Main Authors ABE TAKASHI, KAWADA TAKAHIRO, SUZUKI KAZUO, FUKUSHIMA TOSHIAKI, FUTAKAMI SHIGERU
Format Patent
LanguageEnglish
Published 02.10.2003
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
INDUCTANCES
MAGNETS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
Online AccessGet full text

Cover

More Information
Summary:An actuator apparatus, comprising a rotating shaft supported in a freely rotating condition, a rotor magnet consisting of a permanent magnet which is polarized at two poles and is fastened to the rotating shaft; means for defining a first rotational position when the rotating shaft rotates in one direction; means for defining a second rotational position when the rotating shaft rotates in the other direction; and driving means for driving the rotating shaft and rotor magnet, wherein a self-hold state is formed by yokes arranged so as to form a closed magnetic circuit between the one pole and the other pole of the above-mentioned rotor magnet in at least one of the above-mentioned first rotational position and the second rotational position.
Bibliography:Application Number: US20030385618