CPC B63B 32/66 (2020.02) [B63B 1/00 (2013.01); B63B 32/64 (2020.02)] | 17 Claims |
16. A removable fin for a fin mounting box of a sports board, the mounting box having an outwardly facing channel formed therein which comprises channel engagement formations, the channel engagement formations comprising at least one retention means pair of a retention protrusion extending from an internal side wall of the mounting box channel and a biased button head extending from an opposite facing internal side wall of the mounting box channel, the biased button head disposed opposite to and spaced from the retention protrusion, the fin comprising:
a fin base; and
a body extending from the base, wherein the fin base comprises engagement means being a respective recess in a side wall of the fin base to receive each retention protrusion of the mounting box channel, and at an opposite side wall of the fin base to each recess, the side wall of the fin base does not have any recesses and provides a flat wall surface for the button heads.
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