mooring door help need

Discussion in 'Boat Design' started by pulsar, Oct 5, 2010.

  1. pulsar
    Joined: Aug 2006
    Posts: 32
    Likes: 1, Points: 0, Legacy Rep: 30
    Location: Poland

    pulsar Mechanical engineer

    Hi,

    I have to design mooring door in bow part of hull.
    Mooring door has to section shape adjusted of course to hull shape.
    Axis of hinges need to be paraler to center line of ship. Unfortunatly it should have sealing around. Hinges should be inside for simple access to pin.
    Is there any one who can send any information or pictures how to solve that problem.

    Best regards
    Pulsar
     
  2. FAST FRED
    Joined: Oct 2002
    Posts: 4,519
    Likes: 109, Points: 63, Legacy Rep: 1009
    Location: Conn in summers , Ortona FL in winter , with big d

    FAST FRED Senior Member

    The door does not need to be square , all you need is a straight edge for the hinges.

    FF
     
  3. jehardiman
    Joined: Aug 2004
    Posts: 2,799
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    Location: Port Orchard, Washington, USA

    jehardiman Senior Member

    You really don't even need that, what you need is an offset hinge axis and "C" arm hinges for a flush fitting shaped panel. Designs have been around for a couple of centuries, and I did a similar hinge for a faired panel when I first started engineering many years ago; just get one of the many idea books of old patent mechanisms for lots of examples. Drawback is the relatively large amount of arm swing volume needed inboard.

    Edit to add:... Go look at a lot of automobile doors, they have offset axis hinges to swing free of faired body panels. Here is a random website I looked up to show the type of hinge I mean...http://www.customautotrim.com/bodykits/lambo-doors/lambo_door_kits.htm

    If you really need a drawing, I'll see if I can find one.
     
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