Webbing anchorage for seat belt system

A webbing anchorage for a seat belt system, comprising:

• a bolt having a head portion which has a top wall, and a threaded portion;
• an anchor metal plate having a base portion and a free end portion, said base portion defining a bolt hole through which said bolt is inserted with said head portion located on one side thereof, and said free end portion defining a slot through which a webbing can extend supportedly;
• a flexible upper cover member extending over at least a side of said base portion of said anchor metal plate, said side being on the side where said head portion is located, said cover having an inner wall, said inner wall and said top wall defining a space therebetween;
• and
• a substantially cylindrical impact-absorbing rib arranged within said space and having a free end portion at one end thereof, said free end portion terminating at a free end, and said rib having a wall with an inner diameter, said inner diameter increasing toward said free end so that said wall becomes smaller in cross-section toward the free end of said substantially cylindrical rib.

A webbing anchorage for a seat belt system, comprising:

• a bolt having a head portion and a threaded portion, said head portion having a top wall and a recess defined in said top wall;
• an anchor metal plate having a base portion and a free end portion, said base portion defining a bolt hole through which said bolt is inserted, and said free end portion defining a slot through which a webbing can extend supportedly;
• a flexible upper cover member extending over at least a side of said base portion of said anchor metal plate, said side being on the side where said head portion is located, said cover having an inner wall, said inner wall and said top wall defining a space therebetween;
• and
• a first impact-absorbing rib arranged within said space,
• wherein said first rib is guided along a wall of said recess, and is deformed into a turned-back shape when an impact is applied from an outer wall of said upper cover.