| 摘要 |
<p>A seat belt for automobiles with a reversal drawing resistant controller comprises a driven gear (2) and a ratchet wheel (1) that are provided on a rotary shaft (13). The driven gear (2) has an opening about the outer circumference thereof. The ratchet wheel (1) is provided inside the driven gear (2). A baffle (7) is provided on one side of the driven gear (2). A small axis (5) and a small axis (6) are fixed on the baffle (7). A small gear (3) and a cam (9) are fitted over the small axis (5). A tongue (8) is provided between the small gear (3) and the cam (9). The cam (9) is driven to rotate by the rotation of the small gear (3). A tongue (10) is provided between the cam (9) and the baffle (11). The tongue (10) actively connects with the cam (9) and the baffle (11) respectively. A pawl (4) is fitted over the small axis (6). One end of the pawl (4) stays in contact with the periphery of the cam (9) and the other end of the pawl (4) stays in contact with the ratchet teeth of the ratchet wheel (1). The seat belt according to the invention can resist the reversal drawing of the seat belt with simple structure and low cost.</p> |
