| 摘要 |
<p>The tubular self-retracting device (2) has an elongated tubular element (6) having an open end, a cord (8) extending through the open end and fitting in the tubular element (6), a clipping element (10) attached to the cord (8) outside the tubular element (6) and an elongated spring means (3) mounted inside the tubular element (6), for urging the cord (8) inside the tubular element (6).</p> |
