초록 ▼

A floating drive mechanism for a power seat adjuster in which carriages are carried by two parallel inserts, each of the inserts including a toothed rack in mesh with a pinion drive gear. The gear and rack are held in a consistent mesh with one another by a spring retainer so that during adjustment

A floating drive mechanism for a power seat adjuster in which carriages are carried by two parallel inserts, each of the inserts including a toothed rack in mesh with a pinion drive gear. The gear and rack are held in a consistent mesh with one another by a spring retainer so that during adjustment of the seat, as the carriage is moving, dimensional variations of the carriages and inserts do not effect the mesh between the gears and racks. The gears include drive shafts which terminate in spherically radiused square drive ends to which are crimped the ends of a torque tube coupling the pinion gears to one another. A transmission/motor assembly pivotally mounted to one of the carriages is used to drive the two gears. The drive shaft couplings with the torque tube enable the two gears to float relative to one another and also relative to the motor/transmission assembly to maintain the consistent mesh between the gears and the racks.

대표청구항 ▼

An adjustable vehicle seat assembly comprising: a stationary track structure having means for mounting said seat assembly in a vehicle; a seat frame structure having a driven member carried by said stationary track structure for movement in the direction of adjustment of said seat assembly; means mo

An adjustable vehicle seat assembly comprising: a stationary track structure having means for mounting said seat assembly in a vehicle; a seat frame structure having a driven member carried by said stationary track structure for movement in the direction of adjustment of said seat assembly; means mounted to said seat frame structure for driving said frame structure including a drive member rotatably carried by said driven member and engaging said stationary track structure whereby rotation of said drive member causes movement of said driven member and said seat frame structure relative to said track structure in the direction of said seat assembly adjustment; means associated with said drive member and said stationary track structure for holding said drive member and track structure engaged with one another and in a fixed vertical position relative to one another.