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Claim 1

IN AN APPARATUS FOR SECURING TO A PANEL MEMBER A PART HAVING AN ENLARGED BODY AND A REDUCED BODY SHANK, A PUNCH HOUSING; A PASSAGE THROUGH SAID PUNCH HOUSING; A PUNCH MOVABLE WITHIN SAID PASSAGE; A SECOND OPENING INTERSECTING SAID PASSAGE; TWO SUPPORTING FINGERS, ONE ON EACH SIDE OF SAID PASSAGE; TWO PIVOT PINS DISPOSED IN SAID SECOND OPENING ON WHICH ARE MOUNTED THE SUPPORTING FINGERS, THE PIVOT POINTS BEING LOCATED ABOVE CENTERLINE ON SAID SUPPORTING FINGERS; AN UPPER AND LOWER CAM SURFACE ON EACH OF SAID SUPPORTING FINGERS; A RECESSED CAM SURFACE ON TWO SIDES OF SAID PUNCH; SAID FINGERS SUPPORTING THE PART AS IT IS FED INTO THE PASSAGE IN THE PUNCH HOUSING, SAID FINGERS RELEASING THE PART AS SAID PUNCH ENGAGES THE LOWER CAM SURFACE ON THE SUPPORTING FINGERS, MOVING SAID FINGERS OUT OF THE PUNCH PATH; THE UPPER CAM FINGER SURFACE PIVOTING INTO THE CAM RECESS IN THE PUNCH, AS THE PUNCH MOVES DOWNWARDLY AGAINST THE PART; AS THE PUNCH MOVES UPWARDLY, THE UPPER CAM SURFACES ON THE SUPPORTING FINGERS ENGAGE THE PUNCH CAM SURFACES ON THE SUPPORTING FINGERS FINGERS INTO A POSITIVE POSITION FOR RETAINING A SUCCESSIVE PART.