This is my pintle hitch with the bottom ramp option, to lift the implement hitch and guide it into the hook.

The green lever in pictures 18 and 7, shows the cable pulling the rollers away from the hook from a lever in the cab or the lever could be an electric Solenoid. The above picture 10, shows the hook removed.

 If you assume the gray tow bar in pictures 12, 13 and 15 is mounted to a vehicle, and is extended, and is hanging off the ground from a cable and spring. It is then backed into with a tractor with this pintle hitch on it. The operator can hook and unhook the towed vehicle without getting out of the tractor cab. When the operator wants to unhook outside the cab at the hitch of the towed vehicle; The operator can unhook easily whether the tow bar ring is pulling or pushing.

The bottom picture 8, shows the allen wrench used to help turn the rollers. The top arrow shows the lock is engaged so pintle cannot unhook. The bottom arrow shows the pin that holds the lock away for unhooking in cab.

Ramps: Hook without getting out:

Whether it’s a hitch tongue with a ring on a grain trailer, or an anhydrous trailer; A solid hitch like the cultivator above, or suspended. It works on them all!

Pintles and pressure release and ramps ease the job and speed it up.

What I think should be done, is make the hook for the little one like the big one, using a ½" bolt for the hook hinge, and the guide ramps shown, an option.

Then make a pintle using a 5/8" bolt for the hook; then a ¾"; then the 7/8"hook bolt like my prototype, all with optional top and bottom ramps. This would be 4 sizes; from the ½" for garden tractors all the way to semi trailers, and 150 HP tractors.

I

For more information call: Glenn Solberg @ 701-528-4712 
or write to: 
TOW N' STOW
13592  77^th St. NW 
Zahl, ND  58856

E-mail: tow@nccray.com