| 摘要 |
The invention relates to the water sports equipment sector. In particular, the invention concerns a retractable fin (1) associable with a shoe (2), comprising:
- a hollow structure (3);
- a moving equipment (4) adapted to assume a first closed configuration inside said structure (3) and a second open configuration when it is outside said structure (3),
wherein said equipment (4) comprises:
- at least two plates (5, 6) rotatingly associated with linear sliding means (7, 8) adapted to enable the extraction of said at least two plates (5, 6) from said hollow structure (3) and subsequent repositioning thereof inside the same structure;
- elastic means (9, 22, 23) adapted to spread said at least two plates (5, 6) in the form of a fan during extraction thereof to change from said first closed configuration to said second open configuration,
and wherein said fin (1) comprises:
- first locking means (10) for said at least two plates (5, 6) in said first closed configuration;
- second locking means (11, 27, 28) for said at least two plates (5, 6) in said second open configuration. |
