Document Type and Number:
Japanese Patent JPH0377117
Kind Code:
B2
Abstract:
In a sailboard made of a synthetic resin with an outer skin and a foam core, as well as with a stringer forming a longitudinal center wall, the outer skin (2) consists of a thermoplastic synthetic resin and of an upper and a lower half shell (3 and 4, respectively), formed by vacuum deep drawing. The half shells (3, 4) are continuously welded together along the equatorial line (8). The stringer (5) is integrally molded in double-wall fashion to the upper one and/or the lower one of the half shells (3, 4) with a profile that is U-shaped over at least the largest part of its length, and is welded, along the base of its U-shaped profile, to the respectively opposed half shell (3 or 4). The profile cavity of the stringer (5) is filled with glued-in-place hard foam elements (12) and sealed by profiled strips (14). The foam core (11) consists of a foam composition injected into the cavity defined by the welded-together half shells (3, 4).
Inventors:
UDOO SHUTSUTSU
Application Number:
JP23648483A
Publication Date:
December 09, 1991
Filing Date:
December 16, 1983
Export Citation:
Assignee:
SHUTSUTSU UERUKE GMBH UNTO CO KG
International Classes:
B63B5/24; B63B35/79
Next Patent: COMPUTER