Patent attributes
Recess portions (15) and (16) are disposed in a seat-belt sliding face (14) of a seat-belt sliding member (13), and a predetermined number of projections (17) are provided independently of each other in a dotted state in the recess portions (15) and (16). In each of the projections (17), sliding resistance between a seat belt (4) and the seat-belt sliding member (13) in a normal time is small, and the sliding resistance between the seat belt (4) and the seat-belt sliding member (13) when the seat belt (4) slides to the lap belt (4c) side is larger than the sliding resistance between the seat belt (4) and the seat-belt sliding member (13) when the seat belt (4) slides to the shoulder belt (4b) side. By means of the dotted-state projections (17), extension of the lap belt (4c) in an emergency is suppressed.
