Abstract: The invention relates to an electrically driven device, for example an electric hair removal device, such as a wet or dry shaver, an electric toothbrush or an electric skin treatment device. The electrically driven device comprises a housing having a chassis, wherein the chassis comprises an electric motor having a first drive shaft, a battery unit, and an oscillating body having a second drive shaft. A first longitudinal axis is defined arranged along the second drive shaft, a second longitudinal axis is defined arranged along the first drive shaft, and a third longitudinal axis is defined arranged through the center of the body of the battery unit, wherein the second longitudinal axis and/or the third longitudinal axis are parallel offset to the first longitudinal axis.

Abstract: The invention relates to a swing bridge for converting a rotary motion into an oscillating motion, especially into a linear oscillating motion, especially within an electrically driven device. The swing bridge comprises an oscillating body defining a plane. The oscillating body comprises a slot arranged in the plane, wherein a first axis extends through the slot perpendicular to the plane, and a drive shaft protruding perpendicular to the plane along a second axis.

Abstract: The present invention is concerned with a skin treatment device, comprising a shaver handle housing, a detachable brush head pivotably supported by the shaver handle housing about at least one brush head pivot axis (I) and a gearing mechanism. The shaver handle housing comprises a drive unit for driving at least one drive pin in a rotatory oscillating manner with a first amplitude about an oscillation axis (II) which is at least substantially perpendicular to the at least one brush head pivot axis (I). The brush head comprises a brush rotatable about a brush axis (III) which is at least substantially perpendicular to the at least one brush head pivot axis (I). The brush comprises at least one driven element coupled to the at least one drive pin by means of the gearing mechanism, wherein the gearing mechanism translates the rotatory oscillating movement of the drive pin into a rotatory oscillating movement of the driven element with a second amplitude which is smaller than the first amplitude of the drive pin.

Abstract: The present invention is concerned with a skin treatment device, comprising a shaver handle housing, a detachable brush head pivotably supported by the shaver handle housing about at least one brush head pivot axis (I) and a gearing mechanism. The shaver handle housing comprises a drive unit for driving at least one drive pin in a rotatory oscillating manner with a first amplitude about an oscillation axis (II) which is at least substantially perpendicular to the at least one brush head pivot axis (I). The brush head comprises a brush rotatable about a brush axis (III) which is at least substantially perpendicular to the at least one brush head pivot axis (I). The brush comprises at least one driven element coupled to the at least one drive pin by means of the gearing mechanism, wherein the gearing mechanism translates the rotatory oscillating movement of the drive pin into a rotatory oscillating movement of the driven element with a second amplitude which is smaller than the first amplitude of the drive pin.

Abstract: The present invention is concerned with a skin treatment device and an interface for, preferably detachably, attaching a brush to a skin treatment device, wherein the skin treatment device comprises a drive unit, a component part driven by the drive unit to perform a rotatory and/or oscillating movement and a hood at least partially encasing said driven component part. One of said brush and said driven component part comprises at least two protrusions which both extend through openings in the hood when the brush is attached to the skin treatment device. At least one of said protrusions engages the other of said brush and said driven component part by snap fit when the brush is attached to the skin treatment device.

Abstract: The present invention is concerned with a skin treatment device, comprising a shaver handle housing, a detachable brush head pivotably supported by the shaver handle housing about at least one brush head pivot axis (I) and a gearing mechanism. The shaver handle housing comprises a drive unit for driving at least one drive pin in a rotatory oscillating manner with a first amplitude about an oscillation axis (II) which is at least substantially perpendicular to the at least one brush head pivot axis (I). The brush head comprises a brush rotatable about a brush axis (III) which is at least substantially perpendicular to the at least one brush head pivot axis (I). The brush comprises at least one driven element coupled to the at least one drive pin by means of the gearing mechanism, wherein the gearing mechanism translates the rotatory oscillating movement of the drive pin into a rotatory oscillating movement of the driven element with a second amplitude which is smaller than the first amplitude of the drive pin.

Abstract: The invention relates to a swing bridge for converting a rotary motion into an oscillating motion, especially into a linear oscillating motion, especially within an electrically driven device. The swing bridge comprises an oscillating body defining a plane. The oscillating body comprises a slot arranged in the plane, wherein a first axis extends through the slot perpendicular to the plane, and a drive shaft protruding perpendicular to the plane along a second axis.

Abstract: The invention relates to an electrically driven device, for example an electric hair removal device, such as a wet or dry shaver, an electric toothbrush or an electric skin treatment device. The electrically driven device comprises a housing having a chassis, wherein the chassis comprises an electric motor having a first drive shaft, a battery unit, and an oscillating body having a second drive shaft. A first longitudinal axis is defined arranged along the second drive shaft, a second longitudinal axis is defined arranged along the first drive shaft, and a third longitudinal axis is defined arranged through the center of the body of the battery unit, wherein the second longitudinal axis and/or the third longitudinal axis are parallel offset to the first longitudinal axis.