Boat launching and recovery guide for boat trailers

Claim 1

In a boat launching and recovery trailer having a wheeled main frame for engaging the bottom of a body of water and a floating frame section for assuming the attitude of the surface relative to the main frame, the improvement comprising: a plurality of transverse integral cross-braces spaced from front to rear of said main frame; front bolster means transversely affixed to a forward cross-brace on the main frame of the trailer and having a contour conforming to the hull of a boat to be launched and recovered by the said trailer; a floating frame having first and second forward pivot means affixed by the latter to an intermediate one of said cross-braces and extending rearwardly to an integral rear bolster means transversely disposed at the rear end of said frame and having a main hull-shaped contour for recovering and launching a boat therethrough on and from said trailer; said floating frame including float means adjacent said rear bolster means; said front and rear bolster means each including upstanding arm portions on opposite sides of said main frame; and guide rail means interconnecting said front and rear bolster means for guiding a boat during launching and recovery thereof substantially the length of said main frame; said guide rail means comprising first and second parallel rails connecting corresponding ones of said upstanding arm portions of said front bolster to said rear bolster, first and second pivot means connecting said first and second guide rails at one end thereof to said front bolster and first and second sliding coupling means connecting said other ends of said first and second guide rails to said rear bolster to provide for longitudinal displacement of said rear bolster with respect to said guide rails in response to flotation of said floating frame relative to said main frame.