Patent ID: 7880344
Filing Date: 2011-02-01
Classification: H02K

Abstract:
1. An X-Y table actuator, comprising: a stationary plate; an intermediate plate, which is stacked on the stationary plate and which is freely movable in an X-direction with respect to the stationary plate; a movable plate, which is stacked on the intermediate plate and which is freely movable in a Y-direction with respect to the intermediate plate; an X-direction drive means for driving the intermediate plate in the X-direction with respect to the stationary plate; and a Y-direction drive means for driving the movable plate in the Y-direction with respect to the intermediate plate, wherein: the stationary plate and the movable plate are each formed into a substantially channel-shape, with being provided with a pair of side walls facing each other through an accommodation groove provided therebetween, and the intermediate plate is formed into a substantially flat-shape; and by stacking the stationary plate, the movable plate, and the intermediate plate on each other, with the accommodation grooves of the stationary plate and the movable plate facing the intermediate plate, a housing chamber of the X-direction drive means is formed only between the stationary plate and the intermediate plate, and a housing chamber of the Y-direction drive means is formed only between the intermediate plate and the movable plate.