Hinge for mailboxBlind

Contest Ended, Winner(s) have been selected.
Description:
We are designing a thick gauge aluminum mailbox (0.080” aluminum (2024 or similar) front and back; ¼” (6061 or similar) lid). We are having problems finding an off-the-shelf hinge for the lid that meets our evaluation criteria (below). Lid is a thick, flat piece of aluminum, no bends. Final product will be powder-coated.
Wants:
1. slow-close hinge action required but doesn't force lid to "stay-open".
2. hinge should operate between -30c and +40c, corrosion resistant, aluminum.
3. Be able to affix to our 1/4" thick aluminum lid with either blind-tapped holes or weld in place (assuming heat from weld doesn't damage hinge).
4. be an elegant solution, requiring minimum manufacturing procedures.
5. Lid is angled down to front at 65 degrees from back of box - hinge needs to operate within full 115 degree range.
6. Hinge can't bump lid into wall or box when open - box will be mounted with 0.5" bump-out from wall
7. be a cost-sensitive solution to help keep overall costs down
8. off-the-shelf solutions preferred
Software:
  1. SolidWorks (2016)

Entries

1st Winner
#10 Mechanical Hinge for mail box potrait by CAD SPARKLES
Hello,
I have attached the pdf drawing (exploded view) and the assembly sequence of the hinge. please have a look at my design and let me know your feedback. Hope you like my design concept.
FYI, this design suits for both the mail box (potrait & lanscape)
regards,
CS
more
2016-05-17 16:24:31
#1 Hinge for mailbox by Amit Thakur
2016-04-29 04:35:45
#2 Simple Spring Hinge Dampening by Decker
Hidden design
We could possibly create a simple sheet metal hinge with a spring in the middle that aids in the dampening of the door when closed. The hinge mounted on the inside will prevent the door from opening past 115 degrees as designed.
more
2016-04-29 05:01:18
#3 Version 1 by Bhavesh J D
Declined
It is simple one we can modify it.with some part is not need.(As per manufacturing process we can modify it )
more
2016-04-30 11:36:54
#4 Hinge for Mail Box by Saket Trade Links
Concept design of hinge.Detail manufacturing drawings can be made after concept is approved.
Please gives us your feedback.
more
2016-05-08 07:57:47
#5 Charnière pour boîte aux lettres by shbi
Hidden design
a suivre
more
2016-05-08 09:11:50
#6 MailBoxHingeSketch-RB00 by Rupak B
Mail Box Slow Closing Hinge – By Rupak B.
more
2016-05-10 08:14:50
#7 HINGE FOR MAILBOX by Diamond Gear
Simple and Practical.
more
2016-05-15 09:45:07
#8 Hinge V1 by ProtoTech Workbench
Hidden design
Hello,
Please review my technical proposal and leave ma a feedback,
Thank you and looking forward,
Liviu Barbu
ProtoTech Workbench Team
more
2016-05-17 10:16:19
#9 Hinge by Rene Kruger
Hidden design
Download Files
Hi,
This might me a give away, but here is a website for any type of hinge you can think of. I don't know if this is what you require, I might be missing something?
more
2016-05-17 11:10:54
#11 Mail Box Hinge by Mahbub
Hidden design
3d file attached.
more
2016-05-17 19:35:32

Discussion

Housey

Buyer

Wed, 25 May 2016 14:21:56 +0000
Sorry for the delay in selecting a winner - some of our staff are away on holidays and we'll be making a decision next week. Standby!

Housey

Buyer

Wed, 18 May 2016 13:39:12 +0000
Just under 4 hours left - last minute submissions are welcome. Thanks everyone.

Housey

Buyer

Tue, 17 May 2016 20:34:15 +0000
Contest ends in less than 24 hours. Thanks to all who have submitted and provided feedback. We'll be vetting the submissions in the next week and will be awarding a winner shortly thereafter. Thanks again.
Mon, 09 May 2016 08:12:26 +0000
How flexible are you with the operating temp? I found one with 5-35°C...let me know asap pls.....

Housey

Buyer

Wed, 04 May 2016 13:40:18 +0000
New PDF drawings uploaded this morning. Hope this helps.
David.
Tue, 03 May 2016 05:19:19 +0000
Yes we are having troubles opening the STEP / EASM files.

Housey

Buyer

Mon, 02 May 2016 20:49:41 +0000
Please let me know if you are having troubles opening the STEP / EASM files that I posted over the weekend.
Thanks.
David.
Sun, 01 May 2016 20:20:11 +0000
Files are not opening ,please attach In PDF / Jpeg so we can view.
Sat, 30 Apr 2016 13:37:19 +0000
Hello,

Could you give the STEP files for references?

Housey

Buyer

Sat, 30 Apr 2016 12:49:11 +0000
Sorry for the late posting - I just uploaded drawings of the mailboxes. One is portrait, the other landscape. Hope this helps in finding the right solution.
Fri, 29 Apr 2016 15:31:13 +0000
What is length and breath of the lid? It is required to calculate the weight of lid.
Are there any limitation on overall dimensions of hinge? I understand you prefer
Off-the-shelf product. Would you throw some light on any type of hinge, that has
been already used by, but not to your satisfaction

Rupak B

Designer

Fri, 29 Apr 2016 04:09:36 +0000
Only in SolidWorks or, AutoCAD can also be OK?
Fri, 29 Apr 2016 03:33:18 +0000
have you not researched a torsion hinge ?
Thu, 28 Apr 2016 23:10:16 +0000
Sir, do you have some pictures please?
Thu, 28 Apr 2016 19:49:01 +0000
If available could you please attach few pictures of the mailbox, and where it will be going.
The final location will ultimately dictate any visual or artistic preferences.

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