Patent ID: 8164223

Claim:
A linear motor mounting structure allowing mounting of a linear motor comprising: two stators extending in parallel; and a movable member being movable between the two stators in a direction which the stators extend, the mounting structure comprising: a base contacting bottom surfaces of the stators to fix the stators ; two stator mounting members each provided on a corresponding side of the two stators and each extending from the base to a height substantially equal to but differing from a height of a top surface of the stator; and two plate like support members fixedly connected to the top surfaces of the respective two stators and top surfaces of the respective two stator mounting members having heights differing from the two stators, wherein an air gap is created between each of the stators and the movable member, a maximum allowable displacement of the air gap is defined as δx, a thickness of the plate-like support member is defined as t, a coefficient is defined as K, which is calculated from an air gap displacement that is caused when a plate-like support member having a known plate thickness is used to fixedly connect the top surfaces of the two stators and the top surfaces of the two stator mounting members, a magnetic attractive force exerted on the top surface of the stator is defined as Fm, a width of the plate-like support member is defined as W, an allowable stress of the plate-like support member material is defined as σ, the thickness t of the plate-like support member is set to {square root over (δx/K)}≧t≧Fm/(Wσ), and the bottom surface of each of the stators is fixed to the base, and the top surface of the stator is fixed to the corresponding stator mounting member via the corresponding plate-like support member.