| 摘要 |
PROBLEM TO BE SOLVED: To establish a function to draw back a seat belt in the counter- resilience direction. SOLUTION: A plurality of resilient pieces 11, 12, 13, 14 are curved in a equilateral triangle and arranged in overlapped contact from inside to outside in the order of length where the bottoms and waists are overlapped. Two washers 15 are fastened by a bolt 16 from the sides of the waist and fixed by a nut 17. One end of the longest resilient piece 11 is folded back and put in contact with a coupling part 18, and a buckle 20 is coupled with one-side ends of the resilient pieces 11, 12, 13, 14, and the coupling part 18 is mounted to an upper stationary ring. A U-shaped resilient piece 40 is installed in penetration of a seat belt so that the seat belt can be drawn out freely. Double lock and calibration can be established only through fixing the seat belt by the buckle 20, and the two ends of the resilient pieces 11, 12, 13, 14 are deformed in spreading when a human body is inclined forward, and a drawback shock absorbing effect is obtained, and it is possible to perform draw-in of the seat belt automatically. |
