Vehicle power seat adjuster with self-aligning lead screw actuat

Details Vehicle power seat adjuster with self-aligning lead screw actuat Vehicle power seat adjuster with self-aligning lead screw actuat

1993-12-15

1995-10-10

Ramirez, Ramon O.

Supports

Stand

Horizontally movable support surface

74 8915, 297311, B60N 200

Patent

active

054564395

ABSTRACT:
A power seat adjuster includes a rotatable drive shaft with first and second axial ends and an intermediate arcuate portion connecting the first and second axial ends. The first and second axial ends are respectively axially connected to a drive motor gear assembly and to a driven lead screw. A horizontal drive block threadingly engaging the lead screw is rotatably and vertically translatingly mounted in an aperture in a lower track for self-alignment of the drive block with respect to the lead screw. A housing rotatably receives the axial connection between one end of the drive shaft and the lead screw. The drive nut is rotatably and translatingly mounted in a bracket fixed to an upper track for self-alignment of the drive shaft with the lead screw. A drive block engages the lead screw and is mounted for rotation and translation in a link. The upper and lower tracks have a guide section and an abutment section which collapse together in a self-cinching action under force loading to resist separation of the upper and lower tracks.

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