| 摘要 |
<p>Self-closing, flexible trap door for access platforms, enabling its use as a work surface, consisting of a rubber body (1), fixed to the access platform (2), strengthened by a cross-directional rigid reinforcement (3), fitted with a tape (4) to facilitate opening and a lock (5) when being transported and assembled. Closing is caused by the pressure of the rubber. Additionally, the closing is caused by an externally-driven mechanism or by means of magnets.</p> |
