Magnetic-scale-equipped motion guide apparatus
First Claim
1. A magnetic-scale-equipped motion guide apparatus comprising:
- a track member including a rolling element rolling portion extended in a longitudinal direction, and an upper surface where at least one through hole into which a fastening member is inserted opens;
a movable member movably assembled to the track member via a plurality of rolling elements;
a groove formed in the track member and extended in the longitudinal direction;
a magnetic scale accommodated in the groove, on which north and south poles are alternately formed in the longitudinal direction; and
a cover member covering the magnetic scale,wherein the cover member that covers the magnetic scale also serves as the cover member that covers the through hole of the track member.
1 Assignment
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Accused Products
Abstract
A magnetic-scale-equipped motion guide apparatus is provided which can scrape iron powder adhered to a magnetic scale by a scraper or seal of a movable member without inviting adverse effects such as wearing away and deformation of the magnetic scale. The magnetic-scale-equipped motion guide apparatus of the present invention comprises a track member 1 having a rolling element rolling portion 1b and also an upper surface where through holes 18 into which fastening members are inserted open, a movable member 2 movably assembled to the track member 1 via a plurality of rolling elements 3, a groove 1a formed in the track member 1 and extended in a longitudinal direction, a magnetic scale 7 accommodated in the groove 1a and having north and south poles alternately formed in the longitudinal direction, and a cover member 8 that covers the magnetic scale 7 and also the through holes 18 of the track member 1.
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Citations
6 Claims
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1. A magnetic-scale-equipped motion guide apparatus comprising:
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a track member including a rolling element rolling portion extended in a longitudinal direction, and an upper surface where at least one through hole into which a fastening member is inserted opens; a movable member movably assembled to the track member via a plurality of rolling elements; a groove formed in the track member and extended in the longitudinal direction; a magnetic scale accommodated in the groove, on which north and south poles are alternately formed in the longitudinal direction; and a cover member covering the magnetic scale, wherein the cover member that covers the magnetic scale also serves as the cover member that covers the through hole of the track member. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification