been thinking about quick hitches for 3pt hitch category 1 and category 2, then thought about the old tractors.... snap couplers for allis chalmers. more specifically the "bell housings" there was like a funnel on bottom side of tractor between the wheels. and you backed tractor right into implement tongue. and the funnel would help guide things, and when the Eye bolt like end slid all the way in. there would be a springed pin. that would latch the tongue once in place. then you may have to hope off of tractor to connect the arms that hyd cylinders on them to the implement.
what i am interested in is the "bell housings" or funnels. and also interested in "electronic spring pins with manual release". all combined with a quick hitch... or rather i should say half of a quick hitch...
there is already spacing between the "wide sides" of the STB tractor just to get around the tires when in transport mode. so... might as well. use that space up with a quick hitch. unlike a typical current age 3pt hitch tractor, a quick hitch would cause less overall lift ability due to sticking implement out further behind tractor. but in this case for the STB there is wasted space between implement and edge of the STB due to the wheels.
but there is some problems.... i would hope the links on the STB tractor like current age tractor 3pt hitches. sway back and forth a couple inches. not much but just a little. i was thinking about some sort of funnel either on implement or on the links. to help "guide" everything together.
remember STB you will not be attaching just one implement but multi implements most likely at one time. and a quick turn of the wheels could through everything off for multi implements. reason why i was think about the bell housing or some sort of "funnel".
the electronic pin with spring for auto latch with an optional for manual unlatch. was thinking more for quickly un hooking from an implement, the pin would electronically open up. then a sensor built in to let farmer know everything is locked in for attaching implement from the cab.
the only way to make it easy for electrical pin, would be if the electrical pin was mounted on tractor. i would imagine it would be much easier to also have funnel on tractor side as well.
i am not sure the old allish chalmers "snap coupler" would work. do to limited degree of movement up and down, that would be needed to fold / unfold implements on the STB tractor. but.... hmmmsss....