发明名称 Boat trailer equipped with a powered boat launch and retrieval system that negates the shallow entry of a launch ramp
摘要 A boat trailer is equipped with a powered boat launch and retrieval system that negates the shallow entry of a launch ramp. The system uses a weldment frame, pivotally connected to the trailer frame. The weldment frame works in combination with a powered cylinder, gravity's effect on the weldment frame and the hull of the boat to automatically release the boat into the water or automatically retrieve the boat from the water.
申请公布号 US9056574(B2) 申请公布日期 2015.06.16
申请号 US201313782067 申请日期 2013.03.01
申请人 发明人 Kirchhan James J
分类号 B60P3/10;B63C13/00 主分类号 B60P3/10
代理机构 Steve Reiss Patent Law Office, P.C. 代理人 Steve Reiss Patent Law Office, P.C. ;Reiss Steve
主权项 1. A boat trailer, comprising: a trailer frame having a front end and a rear end; a frame having a wide end and a narrow end, the wide end pivotally attached to a portion of the trailer frame towards the front end of the trailer, the frame being pivotable between a first position and a second position; the narrow end of the frame having a bilateral fork attached thereto for connecting the frame to a bow eye of a boat a horizontal push/pull bar centered within the bow eye; a power cylinder assembly with a rod, and a push fork connected to the rod; wherein the push/pull bar is captured between the bilateral for and the push for in the first position; the trailer using gravity assist in launching the boat, connected to the frame, from a stowage position on the trailer into the water, by the trailer causeing the frame to move: (a) from the first position angled towards the front of the trailer, towards a top dead center(TDC) position, the frame moving the bow upwardly and away from the front of the trailer and towards the rear of the trailer; and(b) passed the TDC position and then towards the second position, angled towards the rear of the trailer, by gravity acting on the bow and the frame, to thereby release the boat into the water.
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