| 摘要 |
<p>The present invention relates to a quad-directional angle adjustment apparatus and a quad-directional angle adjustment brush using same, especially, among brushes, to a quad-directional angle adjustment apparatus and a toothbrush using same. The present invention provides a quad-directional angle adjustment apparatus and a toothbrush using same according to the present invention comprises a toothbrush head unit having a C-shaped connection portion, which includes an assembly opening, in one side of the head unit and a toothbrush handle unit having a C-shaped connection portion, which includes an assembly opening, in one side of the handle unit, characterized in that the C-shaped connection portions provided in one side of the toothbrush head unit and the toothbrush handle unit have a convex connecting portion on an inner surface and a concave connecting portion on an outer surface.</p> |
