×

Linear drive unit

  • US 6,327,925 B1
  • Filed: 11/25/1998
  • Issued: 12/11/2001
  • Est. Priority Date: 11/28/1997
  • Status: Expired due to Fees
First Claim
Patent Images

1. A linear drive unit, comprising:

  • a housing (14);

    a screw drive having an axis and being disposed generally within the housing, the screw drive comprising a threaded rod (1) in meshing engagement with a threaded nut (2);

    a cog ring forming a unit with the threaded nut (2) or rod (1), centered on the axis and comprising a number of projecting cogs equally spaced along a circumference thereof, rotation of the cog ring about the axis causing a relative axial translation between the rod and the nut; and

    a connecting link (4, 5) extending axially parallel to the axis of the threaded rod, the connecting link being movable to and fro in an axial direction, to rotate the cog ring in increments;

    wherein an incremental axial shifting of the threaded rod (1) or nut (2) relative to the housing occurs.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×