Linear drive with a buffer device
AssigneeFesto AG & Co.
InventorsKurt Stoll, Dieter Waldmann, Thomas Feyrer
Life of this patent
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Abstract
A linear-drive device with a housing (1) in which a drive element (3) is fitted in such a way that longitudinal motion is permitted. On the outside of the housing (1) is a longitudinal guide element (16) on which a guide rail (18) is mounted, also in such a way that longitudinal motion is permitted. A lug (14) projecting through a longitudinal slot (13) in the housing (1) connects the drive element (3) with the guide rail (18). In order to prevent the lug (14) being damaged if the drive element (3) strikes one of the end stops, a buffer device (30) acting in the direction of motion is located in the connection between the guide rail (18) and the drive element (3).
Claims17
A linear drive comprising:
- a housing, said housing being provided with a longitudinal slot;
- a longitudinally moveable drive element mounted in said housing;
- a first longitudinal guide element mounted outside of said housing;
- a second guide element which is guided movably in a longitudinal direction on said first guide element and which is adapted to receive a load to be moved;
- a lug extending through said longitudinal slot forming a movement unit with said drive element and said second guide element, said movement unit having a longitudinal direction of movement;
- and
- a buffer unit effective in said direction of movement of said movement unit, said buffer unit cooperating with said second guide element, said buffer unit being interposed in connection between said drive element and said second guide element subsequent to said lug.
Dependencies are inferred from the claim text.