Abstract: A retractable horn cleat device with a seat body having a receiving cavity inside, a retractable handle provided in the seat body and slidingly displaceable upward and downward by the biasing action of two springs, and a coupling member connected to the retractable handle and coupled to a track on a driving plate inside the receiving cavity. The coupling member serves to guide the retractable handle along the track thereby allowing a user to selectively lock the retractable handle in either a retracted configuration or an unretracted configuration similar to a conventional horn cleat.

Abstract: A hidden cable fixed device comprises a seat body, a movable handle provided in the seat body and sliding upward and downward with two springs, and a coupling member lodged in the inner wall of the seat body and coupled to a longitudinal track at the side wall of the movable handle. The longitudinal track has two substantially V-shaped parts as a positioning section and a guiding section. The coupling member is adapted to guide movement of the track of the movable handle and to selectively lock the movable handle between the extended operative position and the received non-operative position.

Abstract: A fuel inlet structure is disclosed to include a hollow cylindrical casing for mounting in the deck of a vessel, a plug adapted to close the casing, a movable handle supported on a spring inside the plug and vertically movable between an extended operative position for pulling by hand to remote the plug from the casing and a received non-operative position maintained in flush with the top of the plug and deck of the vessel, and a coupling member fixedly fastened to the movable handle and coupled to a track at a vertical locating plate inside the plug body and adapted to guide movement of the movable handle along the track and to selectively lock the movable handle between the extended operative position and the received non-operative position.

Abstract: A hidden cleat structure for boat comprises a seat body, a mobile pile, elastic components, a driving piece, and a driving rod. The mobile pile longitudinally and slidably connects the seat body. The elastic components are disposed in the sliding direction between the mobile pile and the seat body. The driving piece can move transversely, and is disposed in a receiving cavity of the seat body. An erect heart-shape track is disposed on the driving piece. One end of the driving rod is fixed on the mobile pile, and the other end thereof is located in the heart-shaped track. The heart-shape track includes an upper and a lower stop points and two transitional points obliquely placed in the clockwise or counterclockwise direction. The driving rod can make unidirectional circulatory motion in the heart-shaped track along with upward and downward slide of the mobile pile.