The message
from Andrew McKay contains these words:

This tends to be a problem if the bar is too long and unsupported.

1.4 meters is /very/ long for an unsupported clothes rail. If you look
at shop clothes rails of this length they're made of far sterner stuff
than this.

I'd go with the idea of supporting the rail in the middle - or if you're
hanging a row of duffel coats even twice in the middle.

Plenty of the sort Andrew mentioned here...
http://www.screwfix.com/app/sfd/cat/...33026&ts=21706

--
Skipweasel
Pay no attention to that man behind the curtain.