| 摘要 |
<p>The device has a housing (4) fitted and secured into a cavity of a doorframe, and anti-crushing or anti-clamping flexible spring i.e. coil spring (3) inserted or handled at each of ends in a hollow fixing end piece (6). The fixing end piece fixes the hose in the housing and on an opening frame. The housing is formed by male and female housing parts (7, 7') fitted longitudinally one into another by being axially and slidingly mounted with each other by a guiding and sliding unit (8) i.e. rib, so as to adjust length of the housing based on length of the flexible spring.</p> |
