Patent ID: 8506338

Claim:
A connecting piece ( 1 ) for insertion into a hull of a boat, the connecting piece ( 1 ) having an opening ( 2 ) for passage of a pivoted boat drive unit, the connecting piece ( 1 ) comprising an outer edge area ( 3 ) for fixing and sealing the connecting piece ( 1 ) relative to the hull ( 9 ) of the boat, the connecting piece ( 1 ) further comprising a sandwich structure, and the sandwich structure being deformable so as to absorb a collision force, the sandwich structure comprising an inner steel plate and an outer steel plate which are aligned across from each other with respect to the hull and are arranged such that the hull of the boat is sandwiched between the inner steel plate and the outer steel plate, and a sealing member being entirely arranged between the inner steel plate and the hull on a side of the hull opposite the outer steel plate, wherein the edge area ( 3 ) is sealed relative to the hull ( 9 ) of the boat by an O-ring ( 13 ), and the O-ring directly contacts the inner steel plate and is spaced from the hull.