US Patent 9561777 Safe belt

A vehicle seat belt system (20) has a seat belt webbing (22) which is attached to a tongue (30) that fastens into a buckle mechanism (6) fixed to a load bearing part of the vehicle. The belt system (20) has a seat belt retractor (40), a seat belt webbing (22) with a lap belt portion (23) appropriately anchored and shoulder harness portion (25), a self-adjustable webbing guide (65) and a vertical strap webbing (55). The self-adjusting webbing guide (65) includes a pivoting guide (66) connected to a locking mechanism (70) activated by a forward movement of the occupant (1, 100) extending the shoulder webbing (25).