Hinge

摘要

A hinge mechanism comprises a shaft 3 cooperating with a one-way clutch disposed for resisted rotation in a hinge body 1. In the preferred embodiment the hinge body includes a part formed as a split clamp frictionally embracing an outer ring 2 of a needle roller one-way clutch, and the resistance to rotation of outer ring 2 in the split clamp can be adjusted by means of a clamping bolt 6 and nut 4 in conjunction with a spring 5. The hinge may be used in the lid of a tissue processor apparatus to enable the lid to be freely opened to an arbitrary position in which it will remain until positively closed, or as a door hinge to permit free movement in one direction while constraining movement in the opposite direction under the influence of a spring. <IMAGE>