INTRODUCING DEVICE IN LANDING LEISURE BOAT

PURPOSE:To facilitate positioning in the width direction of a boat in floating state by oppositely arranging at least two pairs of air bags which are expanded and contracted by the compressed air, keeping an interval, on a floating body which is installed on a pier or the side surface of a landing pier and freely rises and lowers inside an erected introducing guide. CONSTITUTION:A mark 1b is attached at the contact position of an expandable air bag 2 at a proper position on a deck or on a broadside 1a, in the vicinity of the center part of a leisure boat 1, and two pairs of bellows type air bags 2 which are expanded and contracted by the supply and discharge of the com pressed air are arranged oppositely, keeping an interval, in order to press-fix or separation-open both the broadside parts 1a in the vicinity of the water level 3 at the mark 1b position. Each air bag 2 is installed on a floating body 6 which is fitted in slidable manner along a recessed-shaped side surface 4a formed on a landing pier 4 and rises and lowers, following the variation of the tidal level, and a desired introducing device is constituted.