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Tech Help for "not yer usual" suicide doors

Discussion in 'The Hokey Ass Message Board' started by bonez, Apr 9, 2010.

  1. bonez
    Joined: Jul 16, 2007
    Posts: 3,493

    bonez
    Member
    from Slow lane

    I did search but didnt find anything that could help.
    As you can see in the pics the rear door hasnt got a lot of meat to put 2 hinges and the part of the body where
    the door "jambs" is for the most wheel well.
    What i think is that one single VERY CHUNKY and very large hinge placed where the latch
    is ride now would do the work.
    I also think iwill need a lot of reinforcement in the wheel well/quarter panel area
    but still im not sure what the best route could be.
    Keep in mind i would prefer to fab my own hinges rather than buying them,
    but if the price is right it could save quite some time. Still didnt see any fat single hinge anywhere!

    NOTE: I need technical help, so keep the various "suicide doors are useless" comments outta here.
    Thanx to everybody that will help!
    Nick.[​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
    Last edited: Apr 9, 2010
  2. Da Tinman
    Joined: Dec 29, 2005
    Posts: 4,226

    Da Tinman
    Member

    Good luck.

    I've been fabricating hinges and swinging doors for a long time and I dont see a good way of doing this. With the hinges being that close together the door will wobble when opened and probably need constant adjustment.

    Oh shit, you didnt want opinions. Too bad.
     
  3. bonez
    Joined: Jul 16, 2007
    Posts: 3,493

    bonez
    Member
    from Slow lane

    no, This is exactly what i want to hear.
    I dont want stuff like suicide doors are silly, or why waste your time in
    something that you dont even see and similar.

    Yeah i get your point on the 2 hinges, that is why i said maybe a single big one could work.
    Makes sense?
     
  4. walker
    Joined: Dec 29, 2008
    Posts: 213

    walker
    Member

    I would make one big hinge use a big reenforcing plate on both the door and the jamb. You might look at the Mcmaster.com site for some hinge ideas. Are you wanting hidden hinges, or is it okay that they stick out?
     
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  5. walker
    Joined: Dec 29, 2008
    Posts: 213

    walker
    Member

    I also don't know if its possible, nor have I ever though about doing this on a car door, but using a pivot point instead of a hinge. You would need a pivot point at the top and bottom of the door, between 10 and 20 percent of the door would swing in when the door was opened. A lot of commercial store front door are hinged this way. Again I don't know if it is worth pursuing or not.
     
  6. BarryA
    Joined: Apr 22, 2007
    Posts: 643

    BarryA
    Member

    Bonez - I seem to recall a thread about a Shoebox being done like that. It was a while back - don't know if it was ever completed?
    I have a more-door '49 and when I get to it, hope to do the same thing. I think you've got everything covered in terms of whats needed - reinforcing and all. Ultimately it comes down to physics and leverage. Whether one big hinge or two, you want to gain the most possible height between top and bottom. I would imagine that the thicker the shaft acting as your hinge pin the better - though at some point this may interfere with opening clearance? Limiting play/wear would be critcal.
    In the bigger scheme of things it should be doable if you through enough engineering at it though!
     
  7. Da Tinman
    Joined: Dec 29, 2005
    Posts: 4,226

    Da Tinman
    Member

    shoebox has much more room to spread the hinges on the rear door.

    I have no doubt that the door could be made to seing the wrong way, my thoughts are more toward keeping the door from sagging, twisting or wobbling when opened.

    With the small area at teh rear of the door, any bracing will still be overpowered by the leverage of the door.

    Bracing the door opening wont be a problem, its the door itself thats the problem.
     
  8. lowburban
    Joined: Jan 9, 2003
    Posts: 446

    lowburban
    Member

    Several company's make single really wide hinges for this type application. If I remember correctly the shoebox refenced earlier did use this type hinge. I'll look and see if I can find a link to one. Look on some import or minitruck sites like wwwStreetsourcemag.com. Import cars rear doors are the same and lots have been done this way. Just gotta reinforce that door and jamb really well.
     
  9. petritl
    Joined: Jul 31, 2006
    Posts: 950

    petritl
    Member
    from Marion, TX

    I'm no body guy at all, so these are just my uneducated thoughts.

    Could you cut off the rear 1/4 of the rear doors that contain most of the wheel arch then weld and blend them in the quarter panel. The door glass and track would have to be made and the new larger C pillar would have a small wedge shaped window.

    The doors would be shorter but the hinges would be mounted farther apart and would provide more support
     
  10. bonez
    Joined: Jul 16, 2007
    Posts: 3,493

    bonez
    Member
    from Slow lane

    Thanx guys. i'll go look for this shoebie youre talkin about.
    Lowburb, glad to hear this, probably i just looked in the wrong places.
     
  11. Mudslinger
    Joined: Aug 3, 2005
    Posts: 1,964

    Mudslinger
    Member

    One huge hinge with steel reinforcment running behind the seat to the other hinge. Make it all oversize and plate the inside of the door for strength.
    Use big stuff like box tubing and build off of that.
     
  12. aceuh
    Joined: Apr 17, 2008
    Posts: 1,360

    aceuh
    Member

    I saw a build thread just the other day with a Cadillac that had one hinged suicide rear doors.....Unfortunately I don't remember if it was on this board or one of the many others I frequent....I'll poke around and see if I can come up with a link for ya.
     
  13. StanDaManTX
    Joined: Feb 27, 2009
    Posts: 597

    StanDaManTX
    Member
    from The South

  14. spobanz
    Joined: Nov 15, 2009
    Posts: 79

    spobanz
    Member

    I might look at 2+2 cars with really long doors at a yard. Like a last body style Eldorado, Chevy monte, My dad had a Lexus SC400 with a pretty impressive hinge system for the long heavy doors.
     
  15. BAD ROD
    Joined: Dec 16, 2004
    Posts: 1,532

    BAD ROD
    Member

  16. the-rodster
    Joined: Jul 2, 2003
    Posts: 6,542

    the-rodster
    Member

  17. Topless Ford
    Joined: Feb 10, 2007
    Posts: 560

    Topless Ford
    Member

    I could see where something like that might work. I would bet that the builder would need to take out every bit of extra metal in that door to avoid what Tinman is talking about.
     
  18. BarryA
    Joined: Apr 22, 2007
    Posts: 643

    BarryA
    Member

    Last edited: Apr 9, 2010
  19. bonez
    Joined: Jul 16, 2007
    Posts: 3,493

    bonez
    Member
    from Slow lane

    Thanx guys, i like the shoeboxes you guys leaded me to, but yeah they have a lot more room to spread the 2 hinges, i have very limited space.
    The idea of bracing the left e right hinges togheter is pretty good. i might incorparate the brace w/ the seat frame as im also building the rear seat from scratch.
    Also the import hinge looks almost perfect.
    Might do the import hinge, or build a copy,togheter w7 the bracing thing.
    If it comes out nice i'll show it off.
    Meanwhile, thanx a bunch!
     
  20. bonez
    Joined: Jul 16, 2007
    Posts: 3,493

    bonez
    Member
    from Slow lane

  21. Many years ago I had a '65 Lincoln continental 4 door hardtop. It had suicide rear doors,but can't remember how the hinge system worked. They were very heavy doors and must have had very strong hinges. Maybe a pair of them mounted very close together along with whatever backing plates and braceing required,may work.It should be a doable project and I wish you luck.Ignore the naysayers man !
     
  22. metalshapes
    Joined: Nov 18, 2002
    Posts: 10,733

    metalshapes
    Tech Editor

    If you dont mind spending the time, you can make some yourself.

    I made some hinges out of sheetmetal ( 4 sided and hollow ) to make a rear opening hood.
    And I used small heim joints as pivot points to make hinges for the doors on a racecar. ( light fiberglass with a steel frame )

    A couple of bigger ( suspension sized ) heim joints should give you plenty of strenth and they shouldn't wear too quickly, and are easyer to allign than pins.
     
  23. bonez
    Joined: Jul 16, 2007
    Posts: 3,493

    bonez
    Member
    from Slow lane

    Oh yeah, 1st thing i said is i would like to make my own, but wanted to look how theyre made 1st!
    Of course if i could spare a headache and just adapt a bought pair that would be sweet, but lookin at the average price of them things its kinda like impossible!
    I'll look into the heim joints idea but considering the space i have i dont think its doable...then again, everything is doable w/ enuff thought....
     

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