Patent ID: 6408523
Filing Date: 2002-06-25
Classification: B26B

Abstract:
A pair of scissors comprising a first scissors half (1) and a second scissors half (2), said first scissors half (1) having a first bore (6, 7), said second scissors half (2) having a second bore (11, 12, 16), said bores (6, 7; 11, 12, 16) being generally in alignment; said second bore (11, 12, 16) being defined by an opening-defining surface (11) adjacent said first bore (6, 7), an enlarged bore-defining surface (12) remote from said first bore (6, 7) and a transition surface (16) between said opening-defining surface (11) and said enlarged bore-defining surface (12); a hinge screw (3) having a head (5) substantially disposed in said first bore (6, 7) and a threaded shaft (9) thereof disposed in said first bore (6, 7) and said second bore (11, 12, 16); said threaded shaft (9) having an exterior peripheral surface in substantially non-rotatable matching conforming relationship to said opening defining surface (11) thereby effecting non-rotatable relationship therebetween, said second scissors half (2) including opposite first and second surfaces with the second scissors half first surface being in rotatable contact with an opposing surface of said first scissors half (1); a screw nut (4) having internal threads in threaded relationship to said threaded shaft (9) and an outwardly opening circumferential groove (18); said screw nut (4) being substantially housed within said enlarged bore-defining surface (12) and including axially spaced first and second end faces with said second end face being substantially flush with said second surface of said second scissors half (2); a first flexible body (19) being seated in said outwardly opening circumferential groove (18) and being in yieldable pressure contact with said enlarged bore-defining surface; and a second flexible body (15) being disposed in contacting relationship between said screw nut first axial end face and said transition surface (16) whereby said first (19) and second (15) flexible bodies cooperatively function to establish a yieldable frictional connection between the hinge screw (3) and the second scissors half (2) upon the tightening of said screw nut (4) upon said threaded shaft (9) which squeezes said second flexible body (15) between said screw nut first axial end face and said transition surface (16) thereby forcing said second flexible body (15) into intimate yieldable gripping contact with said thread shaft (9) to effectively mitize said hinge screw (3) and said second scissors half (2) and avoid jerking of the scissor halves 1, 2 during pivotal motion when in use.