(1) Trak Trak je pas s širino približno 50 mm in debelino približno 1,2 mm, tkan s sintetičnimi vlakni, kot sta najlon ali poliester. Glede na različne uporabe se moč in raztezek, ki ga zahteva varnostni pas, dosežeta s tkanjem in toplotno obdelavo. in druge značilnosti. Je tudi del, ki absorbira energijo konflikta. Nacionalni predpisi imajo različne zahteve za delovanje varnostnih pasov.
(2) Navijalo je naprava, ki prilagaja dolžino varnostnega pasu glede na sedečo držo in telo potnika ter uvleče trak, ko ni v uporabi.
Razdeljen na ELR (navijalo za zaklepanje v sili) in ALR (navijalo z avtomatskim zaklepanjem).
(3) Fixing mechanism The fixing mechanism includes a buckle, a lock tongue, a fixing pin and a fixing seat. The buckle and tongue are the devices that fasten and unfasten the seat belt. Fixing one end of the webbing to the body is called a fixing plate, the fixing end of the body is called a fixing seat, and the fixing bolts are called fixing bolts. The position of the shoulder seat belt fixing pin has a great influence on the convenience of wearing the seat belt. Therefore, in order to suit passengers of various sizes, an adjustable fixing mechanism is generally used, which can adjust the position of the shoulder seat belt up and down.