US 12,096,845 B2 · Interface for attaching a brush to a skin treatment device

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.

Claims16

Dependent claims

A brush head comprising a brush and an interface for detachably attaching the brush to a skin treatment device, wherein the brush head comprises a component part driven by a drive unit of the skin treatment device to perform a rotatory and/or oscillating movement and a hood encasing the driven component part,

wherein the brush comprises protrusions which extend through openings in the hood when the brush is attached to the skin treatment device, and
wherein the protrusions comprise two snap elements for attaching the brush to the driven component part by snap fit and at least two lugs for engaging the driven component part by press fit, wherein the two snap elements and the at least two lugs are disposed about a rotary axis (III) of the brush, the two snap elements being located closer to the rotary axis (III) of the brush than the at least two lugs.

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,
wherein 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),
wherein 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),
wherein the brush is attached to a rotatable lever of the gearing mechanism of the skin treatment device,
wherein the brush head further comprises a hood encasing the gearing mechanism,
wherein the brush comprises at least two protrusions which both extend through openings in the hood when the brush is attached to the skin treatment device, and
wherein the at least two protrusions comprise at least one lug and at least one snap element, and wherein the at least one lug engages the rotatable lever part by press fit and the at least one snap element engages the rotatable lever by snap fit when the brush is attached to the skin treatment device.

4 more elements

Dependencies are inferred from the claim text.

Interface for attaching a brush to a skin treatment device

Life of this patent

Interface for attaching a brush to a skin treatment device

Life of this patent

Abstract

Claims16