| 摘要 |
<p>The invention relates to a tooth-brushing appliance including multiple rotary brushing systems. The appliance comprises a body having a head (1) secured thereto, said head being provided with adjacent counter-rotating brushes (2, 2') having a substantially cylindrical external shape and parallel longitudinal axes. Each brush (2, 2') is rotated by a shaft (4, 4') and supported at each end by a bearing (3, 3', 5, 5') forming part of a support (6) that defines the gap between the longitudinal axes of each of the brushes. The support (6) comprises at least two flexible arms (6a, 6b, 6c, 6d) oriented substantially perpendicularly to the longitudinal axes, such that the respective ends thereof form the aforementioned bearings, said flexible arms being linked to a base (6e) used to secure the support (6) to the head (1). According to the invention, the brush (2) is formed by bristles oriented perpendicularly to the longitudinal axis XX' of the brush, said bristles having different lengths, so as to form at least one brush zone having a reduced cross-section in relation to the generally cylindrical cross-section of the brush.</p> |
