Security back for pierced earrings - has shaped metal part with slit defined each side by spring elements.

摘要

The width of the slit (8) is slightly less than the thickness of the pin (2). The shaped part is a tubular section (5) with the slit set in the sleeve face (6) across the axial direction. A bore (11) is provided in the sleeve face (6) on the side opposite the slit. The slit runs from a longitudinal slit (7) set in the longitudinal direction of the sleeve face. The spring elements (9,9') hold the pin secure. USE/ADVANTAGE - Easier more economical mfr. of pierced earrings by only forming slit in curved or flat shaped part without need for bending processes.