Johnson Controls Technology Company

Hoover Universal, Inc.

Ferro Manufacturing Corporation

William R Tighe

Lucas P Porinsky

William M Huffman

William H Jones

Bob L McFalls

David M Husted

A track system () of the type used to adjust the position a supported element such as vehicular seat () includes a pair of base rails () that slidably interact with a respective pair of driven rails (). A transverse rail () is attached to each of the driven rails () so that the driven rails () slide together as a unit. A motor () is supported on the transverse rail () and includes a pair of drive shafts () emanating from either end. The drive shafts () carry on their distal ends' respective worm gears () which are contained within a transmission assembly (). The worm gears () mesh with external teeth on respective drive nuts () which interact with a lead screw () that can be oriented to either remain stationary relative to the base rails () or can be rotatably fixed within the driven rails (). The drive nut () is prevented from causing objectionable noise and premature wear in operation by the inclusion of one or two compressible washers ().

Transmission for motorized track system

A clutch assembly for a four way manual seat adjuster is provided which includes a stationary cylindrical housing in which is disposed a pair of coil clutch springs. The springs are biased to expand radially outwardly into frictional engagement with the housing whereby rotation of the springs is prevented. A torsion tube extending concentrically through said housing is coupled to the springs so that rotation of the torsion tube is prevented when the springs are frictionally engaging the housing. A release handle is provided to selectively release one spring or the other enabling rotation of the torsion tube in one direction. The four way manual seat adjuster linkage is coupled to the torsion tube to raise and lower the seat upon rotation of the torsion tube.

Four way manual seat adjuster clutch assembly

A six-way vehicle seat having means providing for fore and aft adjustment, vertical adjustment with tilting, and a recliner back with full adjustment.

Adjustable seat construction

Growing community of inventors

Dearborn, MI, United States of America

William R Tighe