Gear assembly for seat adjustment ware

Abstract

A gear assembly of seat adjustment ware is provided. The gear assembly includes a gear housing, a worm, a helical gear meshed with the worm, a wobble gear carried on an eccentric lobe of the helical gear, a pinion disc, a first ring gear disposed in the gear housing, a second ring gear disposed in the pinion disc, and a pinion member carrying the helical gear and the pinion disc. The wobble gear includes first and second sets of wobble gear teeth that mesh with the first and second ring gears, respectively. A housing side gear ring disposed in the gear housing defines part of the first ring gear and the gear housing defines another part of the first ring gear. The pinion disc defines the second ring gear.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of U.S. Patent Application Serial No. 15 / 404,550, filed January 12, 2017, which claims U.S. Provisional Application No. 62 / 280,332 in equity. The entire disclosure of the above application is incorporated herein by reference. technical field [0003] The present disclosure relates to gear assemblies for seat adjusters, and more particularly to motor driven gear assemblies for seat adjusters in vehicles. Background technique [0004] This section provides background information related to the present disclosure which is not necessarily prior art. [0005] Vehicles, such as automobiles, are often equipped with seat adjusters that raise and lower the driver's and passenger seats. Such seat adjusters may be manually or power operated. Manually operated seat adjusters typically employ a knob that is manually turned by a vehicle occupant to raise and lower the seat. Other vers...

AI Technical Summary

Problems solved by technology

Back driving can also occur at a much slower rate The seat mechanism tends to be slowly reverse driven down over time due to gravity plus road vibrations

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