Passive locking chuck for rotary driver

A passive locking chuck for a rotary driver comprising:

• a main body having an upper portion and a lower portion;
• an opening in a lower portion of the main body, the opening having a first plurality of recesses formed on an inner surface thereof;
• and
• a movable ring, contained within main body, above the opening, the movable ring having a second plurality of recesses and operable to rotate within the main body from a first orientation where the second plurality of recesses are aligned with the first plurality of recesses to a second orientation where the second plurality of recesses are offset from the first plurality of recesses.

A method of driving a foundation component comprising:

• inserting a driving end of the foundation component into an opening in a chuck of a rotary driver;
• twisting the foundation component about its axis until a ring in the opening is moved from a first angular orientation where the driving end is removable from the chuck to a second angular orientation where the driving end is captured into opening;
• driving the foundation component into underlying ground with the rotary driver in a first rotational direction whereupon the foundation component returns to the first angular orientation as resistance to rotation is encountered;
• and
• upon reaching a target embedment depth, retracting the rotary driver leaving the embedded foundation component in the underlying ground.