Patent ID: 6236296
Filing Date: 2001-05-22
Classification: F16F,H01F

Abstract:
An electromagnetic actuator including:a mobile magnetic member which can reciprocate in translation along a central axis, said mobile magnetic member including stacked rigid ferromagnetic plates and said mobile magnetic member being joined to a fixed yoke by elastomer bodies which allow the mobile magnetic member to reciprocate parallel to the central axis, andat least one electromagnet which is fastened to said yoke and which is adapted to reciprocate the mobile magnetic member along the central axis when a current that varies with time flows through said electromagnet, wherein:each ferromagnetic plate has first and second opposite edges parallel to the central axis, the first edges of the ferromagnetic plates are aligned with each other along a first transverse axis perpendicular to the central axis and the second edges of the ferromagnetic plates are also aligned with each along said first transverse axis,the ferromagnetic plates are fastened to respective first and second rigid transverse strips which are respectively fixed to the first and second edges of each ferromagnetic plate by crimping, andthe elastomer bodies join each transverse strip to the fixed yoke.