Brush for sonic toothbrush with longitudinal axis vibration
AssigneeCuraden AG
InventorMarco Zavalloni
Life of this patent
Estimating the term…
Abstract
A brush for a sonic toothbrush with longitudinal axis vibration having an elongated base body has a frustoconical base portion with a drive adapter for rotation-fixed coupling to a sonic toothbrush drive with longitudinal axis vibration, and a head portion with a bristle support in which a plurality of bristles are anchored, and an elongated neck portion connecting the base portion and the head portion is disclosed. The base body forms a kink angle in that a geometric base portion longitudinal axis and a geometric head portion alignment axis include an angle γ in the range of 5° to 12°. A geometric kink position in the base body has a distance from an end face of the base portion of at least 50% of a total length of the base body.
Claims20
A brush for a sonic toothbrush with longitudinal axis vibration comprising an elongated base body, comprising
- a) a frustoconical base portion having a drive adapter for rotation-fixed coupling to a sonic tooth brush drive with longitudinal axis vibration, said drive adapter defining a geometric base portion longitudinal axis of the brush,
- b) a head portion with a head portion alignment axis and a bristle support in which a plurality of bristles are anchored, and
- c) a neck portion with a reduced cross-section as compared to the base portion, the neck portion connecting the base portion and the head portion, and
- d) wherein the elongated base body forms a kink angle such that the geometric base portion longitudinal axis and the head portion alignment axis include an angle γ in the range of 5° to 12°, and
- e) wherein a geometric kink position in the elongated base portion body has a distance to an end face of the base portion of at least 50% of a total length of the base body.
A brush for a sonic toothbrush with longitudinal axis vibration having an elongated base body, the brush comprising:
- a) a base portion having a drive adapter for rotation-fixed coupling to a sonic tooth brush drive with longitudinal axis vibration, said drive adapter defining a geometric base portion longitudinal axis of the brush,
- b) a head portion having a head portion alignment axis and having a bristle support in which a plurality of bristles are anchored,
- c) a neck portion with a reduced cross-section as compared to the base portion, connecting the base portion and the head portion,
- whereby
- d) the base body forms a kink angle such that the geometric base portion longitudinal axis and the head portion alignment axis include an angle γ in the range of 8° to 15°, and
- e) the base body comprises a load-bearing material with a Young's modulus of not more than 6000 MPa and not less than 2000 MPa.
Dependencies are inferred from the claim text.