Patent ID: 7496984

Claim:
A floor sweeper comprising: a floor-supported cleaning head; a elongate handle having longitudinally opposing inner and outer ends and a longitudinal handle axis; a joint connecting the inner end of the handle to the cleaning head so that the handle may pivot with respect to the cleaning head about first and second mutually perpendicular axes, the first axis extending perpendicular to the longitudinal handle axis; an elongate handle extension having longitudinally opposing inner and outer ends and a longitudinal handle-extension axis; an outside joint and an inside joint, the inside joint being received within the outside joint; a pivot connecting the inside joint to the outside joint and defining a pivot axis extending transverse to the longitudinal handle axis; first and second coupling portions respectively integral with the inside and outside joints, each of the first and second coupling portions receiving, or being received within, a respective one of the handle and the handle extension, so that the pivot and the inside and outside joints, collectively, provide a hinged connection between the outer end of the handle and the inner end of the handle extension; a lock disposed within the one of the inside and outside joints that is connected to the handle extension, having a first section, and reciprocatingly sliding parallel to the longitudinal handle-extension axis; a spring engaging the lock; a recess complementary in shape to the first section of the lock, disposed within the one of the inside and outside joints that is connected to the handle, and positioned so that, when the longitudinal handle axis and the longitudinal handle-extension axis are substantially aligned, the spring urges the first section of the lock into the recess, thereby preventing relative rotation between the inside and outside joints; and a button mounted on the one of the inside and outside joints that is connected to the handle extension, the button being actuable to move the lock against a biasing force provided by the spring, thereby freeing the handle and the handle extension for pivoting relative to each other, about the pivot axis.