ELECTRIC TOOTHBRUSH AND TOOL HEAD FOR SUCH TOOTHBRUSH

摘要

A tool head for an electric toothbrush has at least one tool carrier movably supported on a base part by means of a bearing device. The bearing device includes rotational support means for rotatably supporting the tool carrier about an axis of movement and axial support means for axially movably supporting the tool carrier along the axis of movement, and drive means for driving the tool carrier in an oscillating manner to rotationally oscillate about said axis of movement and to axially oscillate along said axis of movement. The drive means include a cam surface for transforming a rotation of said tool carrier into axial movement of the tool carrier relative to the base part along the axis of movement.

主权项

1. A tool head (4) for an electric toothbrush (1), comprising at least one tool carrier (5) movably supported on a base part (7) by means of a bearing device (8), said bearing device including rotational support means (9) for rotatably supporting said tool carrier (5) about an axis of movement (11) and axial support means (10) for axially movably supporting said tool carrier (5) along said axis of movement (11), and drive means (12) for driving said tool carrier (5) in an oscillating manner to rotationally oscillate about said axis of movement (11) and to axially oscillate along said axis of movement (11), wherein said drive means (12) include a cam surface (13, 14) for transforming a rotation of said tool carrier (5) into axial movement of said tool carrier (5) relative to said base part (7) along said axis of movement (11).