Coupling structure

Claim 1

A COUPLING ARRANGEMENT FOR SECURING TOOTHBRUSHES AND THE LIKE TO AN ELONGATED ACTUATING MEMBER COMPRISING THE COMBINATION OF A SHANK FOR THE TOOTHBRUSH OR THE LIKE HAVING AN OPENING EXTENDING AXIALLY THEREOF FROM AND END OF THE SHANK, SAID SHANK SURROUNDING SAID OPENING HAVING A WALL OF MOLDED PLASTIC RELATIVELY RIGID MATERIAL, SAID WALL ON A SIDE OF SAID OPENING HAVING SPACED SLITS THEREIN EXTENDING FROM SAID END OF THE SHANK TO PROVIDE BETWEEN SAID SLITS A FINGER DEPENDENT UPON SAID SHANK AND HAVING A FREE END ADJACENT THE SAID END OF THE SHANK, THE MATERIAL OF SAID FINGER BEING SUCH THAT THE FINGER MAY RESILIENTLY FLEX FROM THE NORMAL DISPOSITION THEREOF IN THE OUTLINE OF SAID WALL UPON SAID FREE END BEING MOVED RADIALLY OUTWARD AND TO RESUME SAID NORMAL DISPOSITION, SAID FREE END OF THE FINGER HAVING A DETENT PORTION EXTENDING RADIALLY INWARD THEREOF INTO SAID OPENING, AND A TERMINAL PORTION OF SAID ACTUATING MEMBER HAVING A LONGITUDINAL EXTENDING GROOVE DISPOSED ALONG A SIDE THEREOF FROM THE FREE END OF SAID TERMINAL PORTION, SAID GROOVE HAVING A BOTTOM WALL AND SPACED SIDE WALLS SHAPED AND SIZED TO SNUGLY RECEIVE SAID FINGER TO RESTRAIN RELATIVE ROTATION OF SAID SHANK AND ACTUATING MEMBER, SAID BOTTOM WALL AT SAID FREE END BEING INCLINED AT AN ANGLE TO THE AXIS OF SAID TERMINAL PORTION FROM SAID FREE END RADIALLY OUTWARDLY TO PROVIDE A CAMMING SURFACE ADAPTED TO ENGAGE AND MOVE RADIALLY OUTWARLDY THE SAID DETENT PORTION OF SAID FINGER UPON SAID TERMINAL PORTION BEING INSERTED INTO SAID OPENING IN SAID SHANK AND THE RESILIENT FLEXING OF