An automatic container interlock apparatus to releasably affix a lower corner slot of an upper container to an upper corner slot of a lower container, said apparatus comprising:
- a lower unit configured to releasably affix therein the lower corner slot of the upper container, said lower unit having a center passageway, a left passageway, and a right passageway;
- a central shaft having a first shaft end and a second shaft end, said central shaft having a drive wheel positioned approximately midway between said first shaft end and second shaft end, said central shaft having a locking lever positioned proximate said first shaft end and configured to rotate between a locked and an unlocked position, said second shaft end configured to slide therein said center passageway, said central shaft having a drive wheel affixed to said central shaft a midpoint between said first shaft end and said second shaft end;
- a first vertical slide extension and second vertical slide extension, said first vertical slide extension configured to vertically extend and collapse in said left passageway and said second vertical slide extension configured to vertically extend and collapse right passageway, said first vertical slide extension having a first extension support spring positioned proximate a lower end of said first vertical slide extension and configured to extend said first vertical slide extension, said second vertical slide extension having a second extension support spring positioned proximate a lower end of said second vertical slide extension and configured to extend said second vertical slide extension, said first vertical slide extension having a first collar slider positioned around a lower end of said first vertical slide extension, said second vertical slide extension having a second collar slider positioned around a lower end of said second vertical slide extension;
- a shaft pin, said shaft pin slidably connected to said central shaft proximate said first shaft end;
- a pair of flex arms having a first flex arm assembly and a second flex arm assembly, said first flex arm assembly having first upper flex arm having a first end and a second end, said first end of said first upper flex arm pivotably connected to said shaft pin and a second end of said first upper flex arm pivotably connected to a first end of a first lower flex arm via a first pivot pin, a second end of said first lower flex arm pivotably connected to said first collar slider, said second flex arm assembly having second upper flex arm having a first end and a second end, said first end of said second upper flex arm pivotably connected to said shaft pin and a second end of said second upper flex arm pivotably connected to a first end of a second lower flex arm via a second pivot pin, a second end of said second lower flex arm pivotably connected to said second collar slider;
- an expansion device having first curved extension arm, a second curved extension arm, and an extension spring wrap therearound said first curved extension arm and said second curved extension arm, a first end of said first curved extension arm pivotably connected to said first upper flex arm and a first end of said second curved extension arm pivotably connected to said second upper flex arm, said expansion device configured to separate said first upper flex arm and said second upper flex arm;
- and
- a first rotational drive arm and a second rotational drive arm, a first end of said first rotational drive arm pivotably connected to said first pivot pin and a second end of said first rotational drive arm pivotably connected to a first side of said drive wheel, a first end of said second rotational drive arm pivotably connected to said second pivot pin and a second end of said second rotational drive arm pivotably connected to a second side of said drive wheel.