Ships – Sail or control means therefor – Clews
Patent
1990-01-31
1992-03-17
Basinger, Sherman
Ships
Sail or control means therefor
Clews
114 392, 114 97, 114 98, 114102, B63H 908
Patent
active
050958380
DESCRIPTION:
BRIEF SUMMARY
This invention relates to sailboards and in particular clew fittings for the wishbone boom of a sailboard.
Sailboards utilise a wishbone boom which comprises a pair of boom members interconnected at one end by a means facilitating mounting of the boom to the mast and interconnected at the other end by means which facilitate the fixing of the clew of the sail to the boom.
It is an object of the present invention to provide a clew fitting for a sailboard wishbone boom which facilitates disconnection of the boom members for stowage and transport.
In one form, the invention resides in a sailboard wishbone boom clew fitting comprising a pair of members wherein one member is adopted to be mounted to one end of one boom member and the other member is adapted to be mounted to one end of the other boom member, the one member having a transversely directed pawl member and the other member is formed with a transversly directed socket which is complementary to the pawl whereby the pawl member is snugly receivable in the socket, wherein one of the members is provided a latch member pivotably supported therefrom which is resiliently biased into a position at which it will be engaged with the engaged pawl member and socket to prevent the disengagement said pawl and socket when engaged providing a support surface for a rope which fixes the clew of a sail to the clew fitting.
According to a preferred feature of the invention, the support surface comprises first slot formed in the pawl member and the outer face of the other member in the region of the socket wherein the said first slots are aligned when the pawl member and socket are in interengaged, said slots being located remote from the clew of the sail and are shaped to receive the rope.
According to a preferred feature of the invention the latch member is engagable in a second slot provided in the pawl member and outer face of the other member in the region of the socket said second slots being aligned when the pawl member and the socket are inter-engaged.
According to a preferred feature of the invention the latch is supported by one of the members by a support member formed of resiliently deformable material which provides the resilient biassing, said support member being of fixed to said one of the members.
According to a preferred feature of the invention, the latch member is U-shaped whereby the arms of the latch member are received in and supported from the support element and the web of the latch member is engagable with the inter-engaged pawl member and socket.
According to a preferred feature of the invention, the arms of the latch member extend across the first slot.
According to a preferred feature of the invention, said pawl member when inter-engaged in said socket is capable of rotating pivotal movement in the socket about an axis which is substantially centrally located between the members and is perpendicular to the plane of the boom.
The invention will become fully understood in the light of the following description of one specific embodiment. The description is made with reference to the accompanying drawings of which:
FIG. 1 is a side elevation of one member according to the embodiment;
FIG. 2 is a side elevation of the other member according to the embodiment;
FIG. 3 is a side elevation of the members according to the embodiment in inter-engaging relationship; and
FIG. 4 is a side elevation of the embodiment showing the rope in engagement with the clew fitting.
FIG. 5 is an isometric view of both members of the embodiment in a separated condition; and
FIG. 6 is an isometric view of the members according to the embodiment in an engaged position.
The invention relates to a clew fitting which is to be used with sailboard booms having a mast end fitting of the form disclosed in International Application No. PCT AU86 00241. A feature of the above mentioned mast end fitting facilitates disengagement of the ends of the boom members from each other and from the mast when desired. The present embodiment provides a means of disengaging the clew end of the wi
REFERENCES:
patent: 4696248 (1987-09-01), Nedoluha
patent: 4782780 (1988-11-01), Smith
Basinger Sherman
Brahan Thomas J.
Smitech Corporation Pty Ltd.
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