Tail piece for the forked boom of a rig for surfboards

Details Tail piece for the forked boom of a rig for surfboards Tail piece for the forked boom of a rig for surfboards

B - Operations, Transporting

63

H

B63H 9/10 (2006.01) B63B 35/79 (2006.01)

Patent

CA 2156790

The forked boom tailpiece (4) consists of a tube bend segment (9) made of synthetic material that is elastic to a certain extent, which is inwardly open, is pushed open on an aluminum tube bend (10) for fastening the extension bars (3) of the forked boom by means of a spring-loaded latch (11), and is fastened to the tube bend (10). On the upper side of the tube bend segment (9) is a flat pin (12) with a wide straight-through slit (13) for taking up the clew (8) of the sail (7) formed with an inserted fastening ring (14). On the outside of the pin there is a mounting opening (15) for the installation of a spring-loaded latch (16) with a spring-urged swivelling hook (17). The swivelling hook (17) projects outwardly with its hook-shaped actuating end (19) through the mounting opening (15) of the take-up pin (12) of the tube bend segment (9). The swivelling hook (17) is positioned so it can turn on a compression rivet (19) for fastening the tube bend segment (9) to the tube bend (10) for connecting the extension bars (3). When opening the spring-loaded latch (16) the hook (17) swivels out of the clew ring (14) of the sail (7) in the direction of arrow a, and at the same time the locking spring (21) operating on the swivelling hook (17) is pulled tight. To close the spring-loaded latch (16) a light touch of the finger on the actuating end (18) of the swivelling hook (17) suffices to snap it in, caused by the spring resistance of the locking spring (21) in the direction of arrow b in the clew ring (14) of the sail. The forked boom tailpiece (4) makes possible a safe, quick, backlash-free fastening of the sail clew by means of a spring-loaded latch (11), and offers, furthermore, the opportunity to fasten and trim the sail in the traditional way with a rope's end.

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