| 摘要 |
A convex mirror assembly includes convex mirror and a back board, wherein each of the convex mirror and the rear box has a bent portion and a positioning ring encloses the bent portions. The positioning ring is composed of a plurality of sections and each section has a substantially C-shaped cross section which has an enclosing portion, a covering portion and a support potion extending transversely from a first end and a second end of the enclosing portion. Two respective distal ends of the bent peripheries are in contact with the support portion. The covering portion has an overlapping portion on a first end thereof and an engaging portion on a second end thereof, so that the overlapping portion of a first section is sized to overlap on the engaging portion of a second section next to the first section.
|
