Have a look at trunk lids on some cars. They use two transverse torsion
rods to hold the lid open. On some models they are adjustable to two or
three positions, especially on models with an optional rack or heavy
wing or spoiler.
Not as prevalent now as in the 70's and 80's since gas cylinders
I think that something like that would be custom made to suit the
application.
A spring steel rod properly tempered, etc.
If you have any heat treatment shops around you they may be able to make
some suggestions. The spring shaft might have to be quite long to get
270 degrees of movement out of
2015-02-23 15:58 GMT+02:00 Dave Cole linuxcncro...@gmail.com:
The other option might be some type of compressed air powered rotary
actuator.Connected to a compressed air reservoir could act as a
rotary spring.
Thank you, sounds doable, I will investigate this option in more details.
Do you not have any springmakers locally?
I sometimes get springs made, 1 off or 500. From a drawing, sample, or just
verbal. They'll also understand you better, and once you have a sample of
sorts, it's easier to edit.
Regards
Roland
On 23 February 2015 at 10:54, Viesturs Lācis
On 23 February 2015 at 08:54, Viesturs Lācis viesturs.la...@gmail.com
wrote:
I would appreciate, if someone could share a source for torsion
springs, moment needed is 70 Nm, when there is 90 degrees still left
to reach max angle (for 270 degree max angle that would be ~105 Nm max
moment).
Hello!
I would appreciate, if someone could share a source for torsion
springs, moment needed is 70 Nm, when there is 90 degrees still left
to reach max angle (for 270 degree max angle that would be ~105 Nm max
moment).
I ordered Lesjofors springs, received them today and discovered that
in the
