Locking mechanism for food processor blade assembly

A food processor, comprising:

• a base;
• a motor disposed within said base;
• an output shaft operatively connected to said motor and extending outwardly from said base, said output shaft being rotatable upon actuation of said motor;
• a work bowl received on said base;
• a lid receivable atop said work bowl;
• and
• a blade assembly received on said output shaft, said blade assembly including a body, a knob coupled to said body and slidably movable relative to said body, and at least one blade having a cutting edge fixed to said body;
• wherein said knob is selectively movable between a first position, in which said knob is in close association with said body and said blade assembly is locked to one of said work bowl and said output shaft, and a second position, in which said knob is pulled up from said first position and is spaced from said body;
• wherein said pulling up of said knob from said first position to said second position causes said blade assembly to be unlocked and being removable from said output shaft;
• and
• wherein neither said output shaft nor said blade assembly contact said lid;
• wherein in said second position, said knob remains connected to said body.