Linear drive device
AssigneeFesto AG & Co.
InventorsMatthias Finkbeiner, Thomas Feyrer, Dr.-Ing. Rudiger Neumann, Armin Hartmann
Life of this patent
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Abstract
A linear drive device has a stator and an armature able to be moved in relation to the stator in a linear manner. The device furthermore comprises an electrodynamic linear direct drive system and a fluid power drive system. Using the two drive systems it is possible in an independent manner for setting forces to be applied electrodynamically and by fluid power to the armature.
Claims14
In a linear drive device comprising a stator and an armature able to be moved linearly in relation to the stator and an electrodynamic linear direct drive system, composed of two drivingly cooperating drive means in the form of a coil means having a plurality of coaxially sequentially arranged drive coils and of a magnet means with one or more axially sequentially arranged permanent magnets, of which the one is arranged on the stator and the other is arranged on the armature and by which the armature may be subjected to a first setting force, the invention which resides in the provision of an additionally present fluid power drive system adapted to provide for fluid actuation of the armature for the production of a second setting force independent from the first setting force.
Dependencies are inferred from the claim text.