Washing machine appliance having a removable agitator

An agitation element for a washing machine appliance, the agitation element comprising:

• an impeller base rotatably defining a rotation axis about which the impeller base may rotate, the impeller base comprising
• an impeller platform extending radially outward from the rotation axis, and
• a mounting face defined on the impeller platform coaxial to the rotation axis, the mounting face defining a recessed cup defining a lower lip extending circumferentially about the rotation axis;
• and
• an extended post removably attached to the impeller base to rotate therewith, the extended post extending along the rotation axis between a bottom end proximal to the impeller base and a top end distal to the impeller base, the extended post defining an interior cavity from the bottom end to the top end, the extended post comprising
• a mating collar having a mating face disposed on the bottom end in selective engagement with the mounting face at the recessed cup, the mating collar comprising a resilient finger and an enlarged radial rim extending radially outward from the resilient finger, and
• a connector bar comprising an attachment piston slidably received within the interior cavity radially inward from the mating collar to move between a locked position and an unlocked position, the attachment piston being in selective engagement with an inner surface of the resilient finger at the locked position to radially motivate the mating face toward the mounting face within the recessed cup,
• wherein the enlarged radial rim is selectively disposed below the lower lip.

An agitation element for a washing machine appliance, the agitation element comprising:

• an impeller base rotatably defining a rotation axis about which the impeller base may rotate, the impeller base comprising
• an impeller platform extending radially outward from the rotation axis, and
• a mounting face defined on the impeller platform coaxial to the rotation axis, the mounting face defining a recessed cup defining a lower lip extending circumferentially about the rotation axis;
• and
• an extended post removably attached to the impeller base to rotate therewith, the extended post extending along the rotation axis between a bottom end proximal to the impeller base and a top end distal to the impeller base, the extended post defining an interior cavity from the bottom end to the top end, the extended post comprising
• a mating collar having a mating face disposed on the bottom end in selective engagement with the mounting face at the recessed cup, the mating collar comprising a plurality of resilient fingers and an enlarged radial rim extending radially outward from the plurality of resilient fingers, and
• a connector bar comprising an attachment piston slidably received within the interior cavity radially inward from the mating collar to move between a locked position and an unlocked position, the attachment piston being in selective engagement with an inner surface of the plurality of resilient fingers at the locked position to radially motivate the mating face toward the mounting face within the recessed cup,
• wherein the enlarged radial rim is selectively disposed below the lower lip,
• wherein the extended post further comprises a base body extended from the bottom end to the top end,
• wherein the connector bar extends between and upper end and a lower end and is held within the base body, and
• wherein the connector bar is movably attached to the base body above the lower end.