| 摘要 |
A device involving locking members (4, 5), so-called "flaps", for tow pins on a vessel, e.g., a tugboat, particularly for use with tow lines, towing wire, chains, or the like, where the tow pins are positioned in pairs at the stern of the vessel, optionally capable of being raised and lowered, for guiding the tow line or similar equipment therebetween, where each tow pin in a pair is provided to the top thereof with a respective projecting locking member (4, 5), and where each tow pin (1, 2) is pivotable to permit the locking members (4, 5) to be brought by rotation into locking position by covering the opening between the upper ends of the pins, thereby limiting the vertical movement of the tow line or similar equipment positioned between the tow pins. Each locking member (4, 5) in vertical section and in a transverse direction outward from its respective tow pin (1, 2) has approximately a U-shape. The locking member (4, 5) seen in horizontal plane describes a curve in such manner that said locking members when covering the opening between the tow pins together describe a curve (6) extending in the direction of the vessel stern, and that the U-shaped cross section of the locking member at the part (11) that faces toward the vessel stern has a gently curved form, while the part (12) facing away from the vessel stern has a more upwardly oriented and less pronounced curved form.
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