US 11,724,776 B2
Multihull stepped planing boat with multiple independent elastic planing surfaces
Liang Hou, Shanghai (CN); Fengqin Jia, Shanghai (CN); and Tao Wang, Shanghai (CN)
Assigned to Shanghai Xiyi Craft Technologies Co., Ltd, Shanghai (CN)
Filed by Shanghai Xiyi Craft Technologies Co., Ltd, Shanghai (CN)
Filed on Dec. 21, 2021, as Appl. No. 17/558,189.
Claims priority of application No. 202110053486.5 (CN), filed on Jan. 15, 2021.
Prior Publication US 2022/0111931 A1, Apr. 14, 2022
Int. Cl. B63B 1/14 (2006.01)
CPC B63B 1/14 (2013.01) 15 Claims
OG exemplary drawing
 
1. A multihull stepped planing boat with multiple independent elastic planing surfaces, comprising: a main hull (100), X front planing sub-hulls (200) arranged side by side under a front portion of the main hull (100), and Y rear planing sub-hull (300) arranged side by side under a rear portion of the main hull (100); wherein X and Y are positive integers, and 3≤X+Y≤8;
the X front planing sub-hulls (200) are equally spaced, and the Y rear planing sub-hulls (300) are also equally spaced; there is a gap between the X front planing sub-hulls (200) and the Y rear planing sub-hulls (300);
front planing surfaces (210), which are in contact with a water surface, are provided at bottoms of the front planing sub-hulls (200); and rear planing surfaces (310), which are in contact with the water surface, are provided at bottoms of the rear planing sub-hulls (300); the front planing surfaces (210) and the rear planing surfaces (310) are parallel to each other; the X front planing surfaces (210) are set at a same height, and the Y rear planing surfaces (310) are set at another same height; there is a height difference H between the front planing surfaces (210) and the rear planing surfaces (310), so as to form a step of the planing boat;
left and right sides of front portions on top surfaces of the front planing sub-hulls (200) and the rear planing sub-hulls (300) are connected to a bottom of the main hull (100) through hinge structures (400); the hinge structures (400) of the front planing sub-hulls (200) are located on a same transverse axis, and the hinge structures (400) of the rear planing sub-hulls (300) are located on another same transverse axis; rear portions on the top surfaces of the front planing sub-hulls (200) and the rear planing sub-hulls (300) are connected to the bottom of the main hull (100) through elastic shock absorption structures (500) which are vertically arranged; the front planing surfaces (210) and the rear planing surfaces (310) are flat surfaces, which form a longitudinal angle A with a horizontal plane, and the longitudinal angle A ranges from 1-10°.