Door opener/closer for small (12" square?) door

Discussion in 'Misc DIY' started by usenet@isbd.co.uk, May 23, 2005.

  1. Guest

    Can anyone suggest where I might be able to get a mechanism for opening
    and closing a small door. The door will probably be about 12" square and
    can be hinged so that it swings like a full-sized door so the effort to
    open and close it should be quite small.

    It needs to be secure against small animals (foxes etc.) when closed.

    I want to operate it electrically so it can be opened and closed at
    set times (with a time clock from the mains) or possibly be driven by
    a photocell.

    Searching for door opener only produces electronics for door latches
    and/or garage door openers.

    --
    Chris Green
    , May 23, 2005
    #1
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  2. Colin Guest

    > I want to operate it electrically so it can be opened and closed at
    > set times (with a time clock from the mains) or possibly be driven by
    > a photocell.


    A hen house door?
    Colin, May 23, 2005
    #2
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  3. Mary Fisher Guest

    <> wrote in message news:...
    > Can anyone suggest where I might be able to get a mechanism for opening
    > and closing a small door. The door will probably be about 12" square and
    > can be hinged so that it swings like a full-sized door so the effort to
    > open and close it should be quite small.
    >
    > It needs to be secure against small animals (foxes etc.) when closed.
    >
    > I want to operate it electrically so it can be opened and closed at
    > set times (with a time clock from the mains) or possibly be driven by
    > a photocell.


    These are made for poultry coops but I can't find the reference.

    Ask on sci.agriculture.poultry

    Mary
    >
    > Searching for door opener only produces electronics for door latches
    > and/or garage door openers.
    >
    > --
    > Chris Green
    Mary Fisher, May 23, 2005
    #3
  4. Guest

    Colin <> wrote:
    > > I want to operate it electrically so it can be opened and closed at
    > > set times (with a time clock from the mains) or possibly be driven by
    > > a photocell.

    >
    > A hen house door?
    >

    Yes, and - any suggestions?

    --
    Chris Green
    , May 23, 2005
    #4
  5. Guest

    Mary Fisher <> wrote:
    >
    > <> wrote in message news:...
    > > Can anyone suggest where I might be able to get a mechanism for opening
    > > and closing a small door. The door will probably be about 12" square and
    > > can be hinged so that it swings like a full-sized door so the effort to
    > > open and close it should be quite small.
    > >
    > > It needs to be secure against small animals (foxes etc.) when closed.
    > >
    > > I want to operate it electrically so it can be opened and closed at
    > > set times (with a time clock from the mains) or possibly be driven by
    > > a photocell.

    >
    > These are made for poultry coops but I can't find the reference.
    >
    > Ask on sci.agriculture.poultry
    >

    Good point, will do.

    --
    Chris Green
    , May 23, 2005
    #5
  6. puffernutter Guest

    Why not look at using a car electric window mechanism, or even better a
    windscreen wiper mechanism.

    Cheers

    Peter
    puffernutter, May 23, 2005
    #6
  7. Rusty Guest

    <> wrote in message news:...
    > Can anyone suggest where I might be able to get a mechanism for opening
    > and closing a small door. The door will probably be about 12" square and
    > can be hinged so that it swings like a full-sized door so the effort to
    > open and close it should be quite small.
    >
    > It needs to be secure against small animals (foxes etc.) when closed.
    >
    > I want to operate it electrically so it can be opened and closed at
    > set times (with a time clock from the mains) or possibly be driven by
    > a photocell.
    >
    > Searching for door opener only produces electronics for door latches
    > and/or garage door openers.
    >
    > --
    > Chris Green


    Having just replaced a Honeywell CH valve motor, I think one of these might
    be OK. The torque is large, they rotate very slowly exactly 90 deg when
    the mains is applied and are spring loaded to return when its off. Gotten
    from any plumbing shop for a few quid or even less on the electronics
    surplus market.


    rusty.
    Rusty, May 23, 2005
    #7
  8. Mary Fisher Guest

    <> wrote in message news:...
    > Can anyone suggest where I might be able to get a mechanism for opening
    > and closing a small door. The door will probably be about 12" square and
    > can be hinged so that it swings like a full-sized door so the effort to
    > open and close it should be quite small.
    >
    > It needs to be secure against small animals (foxes etc.) when closed.
    >
    > I want to operate it electrically so it can be opened and closed at
    > set times (with a time clock from the mains) or possibly be driven by
    > a photocell.
    >
    > Searching for door opener only produces electronics for door latches
    > and/or garage door openers.


    I found this from some old correspondence:

    http://www.axt-electronic.de

    The chap who used it was very keen.

    Mary
    >
    > --
    > Chris Green
    Mary Fisher, May 23, 2005
    #8
  9. Guest

    Mary Fisher <> wrote:
    >
    > <> wrote in message news:...
    > > Can anyone suggest where I might be able to get a mechanism for opening
    > > and closing a small door. The door will probably be about 12" square and
    > > can be hinged so that it swings like a full-sized door so the effort to
    > > open and close it should be quite small.
    > >
    > > It needs to be secure against small animals (foxes etc.) when closed.
    > >
    > > I want to operate it electrically so it can be opened and closed at
    > > set times (with a time clock from the mains) or possibly be driven by
    > > a photocell.
    > >
    > > Searching for door opener only produces electronics for door latches
    > > and/or garage door openers.

    >
    > I found this from some old correspondence:
    >
    > http://www.axt-electronic.de
    >
    > The chap who used it was very keen.
    >

    I got pointed to the same device on the poultry newsgroup, thanks,
    I'll look into it.

    --
    Chris Green
    , May 23, 2005
    #9
  10. Colin Guest

    >> A hen house door?
    >>

    > Yes, and - any suggestions?


    I have thought about this but have always worried about door failing or a
    hen being shut out overnight.

    This time of year our hens could go into the house any time between 7pm and
    9pm. I was thinking of some sort of perch sensor to detect hens being
    inside... but this got to complicated.

    Another tack is to raise the hen house, see H-F Wittingstall (sp?) Riverside
    Cottage books, or Bunny Guinness. These seem to work in France but it does
    make cleaning and collecting eggs more difficult.

    Colin
    Colin, May 24, 2005
    #10
  11. Mary Fisher Guest

    "Colin" <> wrote in message
    news:d6ut8a$8ov$...
    >>> A hen house door?
    >>>

    >> Yes, and - any suggestions?

    >
    > I have thought about this but have always worried about door failing or a
    > hen being shut out overnight.


    No system is 100% foolproof. You might die before they go in and then what
    would happen :)

    > This time of year our hens could go into the house any time between 7pm
    > and 9pm. I was thinking of some sort of perch sensor to detect hens being
    > inside... but this got to complicated.


    Ours aren't going in until well after nine at the moment, we're in
    Yorkshire.

    >
    > Another tack is to raise the hen house, see H-F Wittingstall (sp?)
    > Riverside Cottage books, or Bunny Guinness. These seem to work in France
    > but it does make cleaning and collecting eggs more difficult.


    It's only suitable for small coops. I can't see why they should make
    anything else difficult.

    Another method (this should be on s.a.p.) is to have the coop well off the
    floor with a pole sticking out at right angles to the opening. Hens can jump
    or fly onto the pole to get access to the coop, the fox can jump but can't
    get into the coop from the pole because it can't hold on to it. I've tried a
    version of this, it works but now that I have the Eglu it wouldn't be easy.

    Mary
    >
    > Colin
    >
    Mary Fisher, May 24, 2005
    #11
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