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US 5,747,896 AGranted
Electric actuator
AssigneeSMC Corporation
InventorsShigekazu Nagai, Tadasu Kawamoto
Life of this patent
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Abstract
An electric actuator has an elongate base, a power unit and an encoder device which are fixedly mounted on respective opposite ends of the base in confronting relation to each other, a slide table displaceable longitudinally along the base, a ball screw for transmitting rotational power from the power unit to the slide table, and a pair of guide lands integral with the base for guiding the slide table longitudinally along the base.
Claims8
An electric actuator comprising:
- an elongate base;
- a slide mechanism having a slide table slidably mounted on said elongate base for longitudinal displacement therealong;
- rotational power means fixedly mounted on a longitudinal end of said elongate base, for displacing said slide table longitudinally along said elongate base;
- detecting means fixedly mounted on an opposite longitudinal end of said elongate base, for detecting a rotational quantity of said rotational power means;
- power transmitting means connected to said slide mechanism, said rotational power means, and said detecting means, for transmitting rotational power from said rotational power means to said slide table;
- and
- guide means integrally mounted on said base, for guiding said slide table longitudinally along said elongate base.
4 more elements
Dependencies are inferred from the claim text.