Electrical toothbrush, brush head connector, and handle for an electrical toothbrush

摘要

The brush unit (5) has brush head (7) and coupling sleeve (20). The brush head and the coupling sleeve are interconnected through a tubular neck (6). The hollow space is arranged in inside of coupling sleeve and provided with circular base cross-section. The coupling sleeve is provided with circular segment-shaped wall portion which is thicker than the circular base cross-section and planar axial surface (26) with narrow cross-sectional. The planar axial surface is provided with an axial groove (22). Independent claims are included for the following: (1) handle portion; and (2) electric toothbrush.