Patent ID: 7453172

Claim:
A linear slide apparatus comprising a straightly extending table guide, a table capable of moving along the table guide in an axial direction thereof, and an electromagnetic actuator which drives the table, wherein the table guide includes a hollow hole formed therein, and a rail portion which is integrally formed with the table guide outside the hollow hole and extends in the axial direction along the table guide and which movably supports the table, the electromagnetic actuator includes an exciting coil generating a magnetic force when energized and a second core portion which are fixedly and co-centrally mounted in the hollow hole of the table guide, a first core portion of which encloses said exciting coil and said second core portion, a moving body which moves straightly using the magnetic force generated in both the first and second core portions as thrust when a current is passed through the exciting coil, the moving body including a permanent magnet and being disposed in the hollow hole of the table guide so as to move in the axial direction of the table guide, and the moving body and the table being interconnected through a joint member, and the table guide is made of magnetic material and serves as the first core portion.