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A surfboard includes board, a fin connector securely mounted in the board and a fin attached to the fin connector. The surfboard has two setscrews screwed into the fin connector to hold the fin in place and a bolt extending through the fin connector, which screws into the fin to strengthen the conne

A surfboard includes board, a fin connector securely mounted in the board and a fin attached to the fin connector. The surfboard has two setscrews screwed into the fin connector to hold the fin in place and a bolt extending through the fin connector, which screws into the fin to strengthen the connection between the fin connector and the fin.

대표청구항 ▼

1. A surfboard comprising: a board with a front and rear end, a top surface and a bottom surface including: a recess defined in the bottom surface near the rear end of the board; and a hole perpendicularly defined through the top surface of the board, which communicates with the recess in the

1. A surfboard comprising: a board with a front and rear end, a top surface and a bottom surface including: a recess defined in the bottom surface near the rear end of the board; and a hole perpendicularly defined through the top surface of the board, which communicates with the recess in the bottom of the board; a fin connector securely mounted in the board and including: a rectangular block securely mounted in the recess in bottom of the board and a stub extending perpendicular from the rectangular block, where the stub has a top end is securely mounted in the hole in the board and a passage is axially defined in the stub; the rectangular block has: a front end, a rear end, two sides, a face and a bottom side; a mortise with a bottom longitudinally defined in the rectangular block; a through hole defined in the bottom of the mortise and communicates with the passage in the stub; and a threaded hole is defined near the front and rear ends of the face on a bias to communicate with the mortise, and the threaded holes are defined on opposite sides of the mortise from each other; a fin with a long longitudinal base attached to the fin connector and having a longitudinal tenon with an end and two long sides extending from base of the fin and mounted in the mortise in the rectangular block, a threaded hole corresponding to the through hole in the rectangular block and defined in the end of the tenon and two recesses defined in the sides of the tenon and corresponding to the two threaded holes in the rectangular block; two setscrews, each screwed through one of the threaded holes in the rectangular block and abut the corresponding recess in the mortise to hold the fin in place; and a bolt extending through the through hole in the rectangular block and screwed into the threaded hole in the fin to strengthen the connection between the rectangular block and the fin. 2. The surfboard as claimed in claim 1, wherein the recess is cuboidal. 3. The surfboard as claimed in claim 1, wherein the top end of the stub is flush with top surface of the board.