This is pretty clever, however it could get misaligned if the chain/belt were to skip It would probably be best to be connected with linkages Edit: oh I’m blind
For tractor trailers it is easier to make hydraulic steering for some wheels, because they are so big. Or some smaller trailers just have steering on the front axle. But I think this is used in smaller trailers used at airports.
+Sebastian Stenberg Bar dimensions must be chosen to meet condition: turning centers of the four wheels are concurrent. I did not find out how to get it. So the lateral slipping of the wheels are inevitable in this video. The solutions may be found in documents related to designing car steering system.
Hello sir, Will it be possible for you to run your design on a motion simulation software so as to know the inner turning radius of your design and how this design is better than the existing front axle driven vehicles please
they dont work. everyone makes the same mistake. forget about the axle and the wheels and the towball and how this is ATTACHED TO A VEHICLE. a standard pivoting axle like you see on any dog trailer (truck) lets the front steering wheels follow HALF the angle between the rear wheels and the towing vehicle. even a standard single axle trailer... it follows at HALF the angle... nothing drags or scrubs. on tarmac with big loads thats important? (forget twin axles and stuff... some scrub is unavoidable.) whereas this tries to make it steer at DOUBLE the angle! some scrub is unavoidable but why try to increase it unneccesarily? the TOWBALL at the end of the drawbar in these 4WS arrangements follows a completely different arc to what the towing vehicle will actually try to pull it along. and so they scrub and they slip, and they wear tyres out.
