| 摘要 |
Apparatus for pivotally mounting a structure on a boat hull for pivotal movement between a position wherein the structure extends downwardly into the water and a retracted position. The apparatus includes a first hinge member adapted to be fixed to the boat hull, and having a pair of spaced apart flanges including apertures. A second hinge member adapted to support the structure, is positioned between the spaced apart flanges and pivotally connected to said first hinge member for pivotal movement with respect to said first hinge member between a first position and a second position, said second hinge member including, a first side having a surface adjacent one of said spaced flanges of said first member, and said first side including an aperture, a second side having a surface adjacent the other of said spaced flanges of said first member, means for pivotally connecting said second hinge member to said first hinge member such that said second hinge member is moveable with respect to said first hinge member between said first position and said second position, and detent means for releasably holding said second hinge member in said first position, said detent means including a ball carried by said second hinge member for movement toward and away from said one of said spaced flanges of said first hinge member, and spring means for resiliently biasing said ball toward said one of said spaced flanges, and a portion of said ball being housed in said aperture when said second hinge member is in said first position.
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