| 摘要 |
<p>A scissors includes first and second blades, each blade having a handle and a cutting edge, an inner surface and an outer surface. The first blade inner surface includes a boss disposed between the handle and the cutting edge and extending outwardly from the inner surface. A bearing raceway is circumferentially disposed around the boss. The second blade inner surface includes a circular recess disposed between the handle and the cutting edge. The recess receives the boss of the first blade. The circular recess includes a circumferentially disposed bearing raceway. A pluralities of ball bearings are disposed within the circular recess bearing raceway and the boss bearing raceway for pivotally coupling set first and second blades members.</p> |
