×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

wire bundles traversing a cabinet door hinge

wire bundles traversing a cabinet door hinge

wire bundles traversing a cabinet door hinge

(OP)
It's so many years ago that I cannot remember, but what is the guideline for the correct orientation of a wire bundle that must cross a hinge axis.
* Typical example, switches on a front panel that is hinged to front of a rack mount shelf.
* The wire bundle can approach the hinge at 90deg (wires are in bending) or run parallel to the hinge line (wires are in torsion) before it crosses.
I knew this in my "circle-bar W" days, but that's a long time back!
Anyone know?
Thanks,
Nigel

"You will master any feeling of inadequacy you may be having"
....from my fortune cookie @ the buffet!

RE: wire bundles traversing a cabinet door hinge

Usually you run them over to the hinge area.  Then drop them down and back up in a loop deemed sufficient for the expected service.  So torsional is probably what you'd call it.

Sort of like this.  In this case, feeding the duct at the bottom made the most sense.  The loop is rigidly anchored in two places under the cover so the duct wires don't all move about during door operations. It's also anchored on the door at the tiewraps.

Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com

RE: wire bundles traversing a cabinet door hinge

nigelt-
Be advised that wire strand counts can have a dramatic effect on stiffness; the higher the strand counts the more flexibility you'll get.  I spec OLFLEX cables and wires in situations like this (OLFLEX has since been bought by another company whose name escapes me...do a GOOGLE on OLFLEX).  Likewise, if you have cables needing shielding then a spirally-wrapped foil or a braid is better than a solid cladding.  Also, the cable and wire jackets play a big role.  HEPALON is a jacket matl that is great for flexing applications.  OLFLEX (or similar mfgr) can provide you with fatique data and many different options.


  

Tunalover

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close