| 摘要 |
A track has a housing with a bore therein that extends from a first end to a second end, a linear slot at the top of the bore, a radial projection perpendicular to the linear slot, an axial groove in the bore, a plurality of radial openings that extend through the radial projection, a first leg thereon tangent to the top and a second leg tangent to the bottom of the bore. First and second cylindrical members on a ladder are located in the bore and a bolt inserted into each radial opening. Each bolt has a head that is located in the axial groove and a shaft that extends through an opening in a deck on a watercraft. A nut attached to each shaft such that the legs and a base on the radial projection are urged into engagement with the deck to affix the ladder to the deck.
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