SEAT ADJUSTMENT AND DUMPING MECHANISM WITH MEMORY ADJUSTMENT COORDINATED WITH SEAT POSITIONING

摘要

The system (10) controls reclining and dumping of a seat and the return of the seat back to its upright position depending on the position of the seat. The system (10) has a master unit (6) and a slave unit (8). The master unit (6) has a base plate (12) that attaches to a seat and pivots with respect to the ground. A master lock (90), which attaches to the base plate (12), allows the base plate (12) to pivot only when the lock (90) is unlocked. A master seat plate (70) connected to the seat pivots on the master base plate (12). A memory latch (120) normally secures the base and seat plates together so that pivoting the master plate (12) pivots the seat plate (70) except when the memory latch is not latched. A slave-side mechanical lock (111) connects directly to the seat back, which allows the seat back and the master base plate (12) to pivot only when both the master and slave locks are unlocked. An input/output device (164) unlocks the slave lock when the memory latch unlocks, which allows dumping. The input/output device (164) also unlocks the slave lock (111) when the memory latch (120) on the master lock (90) is unlocked to allow the seat back to dump. The device also permits the entire seat to slide forward when the seat back dumps. A lockout latch (290) on the memory latch (120) senses the position of the seat and prevents the seat back from returning completely to the memory position until the seat slides completely to its pre-dumped, rearward position.