US 6,724,104 B2 · Linear motor drive apparatus

Abstract

A linear motor drive apparatus has a fixed element (22) having a guide mechanism (23), a movable element (21) guided by the guide mechanism (23) so as to move along a reference plane (P), parallel rows of first magnets (30, 31) disposed in parallel to both sides of the reference plane (P) and mounted to the fixed element 22, and parallel rows of second magnets (26, 27) disposed in parallel to both sides of the reference plane (P) and mounted to the movable element (21), wherein the parallel rows of first magnets (30, 31) has planar symmetry with respect to the reference plane (P), and wherein a steel plate (40) is provided so as to be parallel to the reference plane (P) at an intersection part of the movable element (21) with the reference plane (P), the steel plate (4) having a narrowed end part.

Claims6

Dependent claims

A linear motor drive apparatus comprising:

a fixed element, which has a guide mechanism;
a movable element, which is guided by the guide mechanism and which can move along a prescribed reference plane;
parallel rows of first magnets, which are mounted to the fixed element, and which are arrayed in parallel at both sides of the reference plane;
and
parallel rows of second magnets, which are mounted to the movable element, and which are arrayed in parallel at both sides of the reference plane, wherein
the parallel rows of first magnets are plane-symmetry with respect to the reference plane, and
the movable element has, at a part thereof crossing the reference plane, a steel plate parallel to the reference plane, the steel plate having narrowed end parts.

4 more elements

Dependencies are inferred from the claim text.

Linear motor drive apparatus

Life of this patent

Linear motor drive apparatus

Life of this patent

Abstract

Claims6