Hensley Arrow: How does it REALLY work?
There have been several discussions on this hitch that have become somewhat 'controversial'. I am NOT trying to stir this controversy/bashing back up. Instead, I'd like to see a good, intelligent di...
Forum Discussion
Stressor wrote:In the top picture, point C IS equivalent to the VPP. However, in the last picture, the VPP at the angulation you depicted should be shown where I've projected it in the following picture.Stressor wrote:
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The drawing demonstrates a locked up rocker-rocker 4 bar linkage, as it is from forces delivered from the travel trailer, and the last drawing shows it unlocked during a turn. C is of course, the VPP when towing straight ahead, after all, it is a projection of the linkage as drawn. I think that makes it equivalent myself.
When turning, the pivot point, or VPP, must necessarily move towards the hitch. Didn't you say for sharp turns it actually moves very close to the actual hitch? Within about 4 inches or less because of the length of the links"
As the rear bar translates and rotates to it's limit, the VPPs follow the path shown by the asterisks in the picture below. In order to reduce clutter, I have only shown enough VPPs to clearly show the "path" traced by the VPP as the rear bar progresses clockwise to its limit.
Look at the picture below and you will notice that the VPP of the side links when the rear bar reaches its clockwise limit is a fair bit behind the hitch.
When descending a steep hill with the trailer turned this sharply behind you, you should feel it there more than with a conventional hitch due to its longer lever on your TV.
Are we on the same page yet?
Tim
