Beard trimmer

• US 10,792,824 B2
• Filed: 09/26/2017
• Issued: 10/06/2020
• Est. Priority Date: 09/28/2016
• Status: Active Grant

• Current Assignee: Braun GmbH (The Procter & Gamble Company)
• Original Assignee: Braun GmbH (The Procter & Gamble Company)
• Inventors: Bady, Udo, Sikora, Bernhard, Stegmann, Wolfgang, Wetzel, Matthias, Behrendt, Juergen
• Primary Examiner(s): Swinney, Jennifer B
• Application Number:
  US15/716,437
• Publication Number:
  US 20180085943A1
• Time in Patent Office: 1,106 Days
• CPC Class Codes: B26B 19/04 Cutting heads therefor; Cutters therefor; Securing equipment thereof
• CPC Class Codes: B26B 19/042 Long hair cutters or older types comprising a cutting grid
• CPC Class Codes: B26B 19/046 Cutters being movable in the cutting head
• CPC Class Codes: B26B 19/063 Movable or adjustable cutting head
• CPC Class Codes: B26B 19/14 of the rotary-cutter type; Cutting heads therefor; Cutters therefor B26B19/04 takes precedence
• CPC Class Codes: B26B 19/20 with provision for shearing hair of preselected or variable length
• CPC Class Codes: B26B 19/205 by adjustment of the cutting members
• CPC Class Codes: B26B 19/22 with provision for thinning-out hair
• CPC Class Codes: B26B 19/3813 Attachments
• CPC Class Codes: B26B 19/386 Means for attaching the head thereto

Abstract

An electric hair cutting kit comprises a handle with a motor for driving a beard trimmer head portion and a shaver head portion. The shaver head portion is attachable to the handle and has at least a first shaver unit, which is provided with a first foil-type outer shaver cutter and a first inner shaver cutter.

Claims

1. An electric hair cutting kit comprising:

a handle with a motor for driving a beard trimmer head portion and a shaver head portion;

the shaver head portion being attachable to the handle, having at least a first shaver unit comprising a first foil-type outer shaver cutter and a first inner shaver cutter, wherein the motor comprises a draft shaft that drives the first inner shaver cutter in order to oscillate relative to first outer shaver cutter in a direction along an x axis, and cut and shave hair between the first inner shaver cutter and the first outer shaver cutter;

the beard trimmer head portion being attachable to the handle as an alternative to the shaver head portion, having at least a first long hair cutter unit for trimming hair comprises a first, non-foil type outer cutter, a first inner cutter, and a non-detachable comb unit the first outer cutter is provided with a cutter skin contact surface, wherein the motor drives one or both of the first inner cutter and the first outer cutter in order to oscillate relative to the other in a direction along the x axis and cut hair between the first inner cutter and the first outer cutter along a hair cutting movement y axis which is transverse and orthogonal to the x axis, wherein a z axis is orthogonal to the x axis and the y axis;

a first comb unit being independently attachable to the first long hair cutter unit, wherein the first comb unit comprises a plurality of comb teeth wherein a thinnest thickness (a) of the comb teeth in a direction along the z axis forms a comb hair trimming length (aa);

an additional comb unit being independently attachable to the first long hair cutter unit as an alternative to the first comb unit, wherein the additional comb unit comprising a plurality of comb teeth wherein a thinnest thickness (b) of the comb teeth in a direction along the z axis forms a comb hair trimming length (bb),

wherein the beard trimmer head portion is provided with a second long hair cutter unit for trimming hair having a second, non-foil type outer cutter, a second inner cutter, and a non-detachable comb unit and wherein the kit further comprises a second comb unit being independently attachable to the second long hair cutter unit, wherein the second comb unit comprises a plurality of comb teeth wherein the thinnest thickness (a) of the comb teeth in a direction along the axis forms the comb hair trimming length (aa),

a further comb unit being independently attachable to the second long hair cutter unit as an alternative to the second comb unit, wherein the further comb unit comprises a plurality of comb teeth wherein the thinnest thickness (b) of the comb teeth in a direction along the z axis forms the comb hair trimming length (bb).

2. The electric hair cutting kit according to claim 1, wherein a thickness (t) of the first outer cutter of the first long hair cutter unit along the z axis defines a hair trimming length (cc).

3. The electric hair cutting kit according to claim 1, wherein the non-detachable comb unit is provided adjacent to the first long hair cutter unit, the non-detachable comb unit is provided with rows of teeth on both lateral sides of first long hair cutter unit.

4. The electric hair cutting kit according to claim 3, wherein the non-detachable comb unit is covered by the first comb unit.

5. The electric hair cutting kit according to claim 1, wherein the thinnest thickness (a) of the comb teeth of the first comb unit is smaller than the thinnest thickness (b) of the comb teeth of the additional comb unit.

6. The electric hair cutting kit according to according to claim 1, wherein the shaver head portion is provided with a second shaver unit which is the same as the first shaver unit and wherein the shaver head portion is further provided with a third long hair cutter unit for trimming the hair length having a third, non-foil type outer cutter and a third inner cutter.

7. The electric hair cutting kit according to according to claim 1, wherein the motor is provided with a motor shaft which is connected with at least a first drive pin for driving either the first shaver unit or the first long hair cutter unit.

8. The electric hair cutting kit according to claim 7, wherein the motor shaft is connected with a second drive pin.

9. The electric hair cutting kit according to according to claim 1, wherein the kit comprises a third head portion attachable to the shaver head portion or the beard trimmer head portion.

10. The electric hair cutting kit according to according to claim 1, wherein the shaver head portion and/or the beard trimmer head portion is provided with a non-hair cutting functional element.

11. The electric hair cutting kit according to claim 10, wherein the functional element is adapted to cool the skin, heat up the skin, comb the hair, or to apply a cosmetic substance.

12. The electric hair cutting kit according to according to claim 1, wherein the first shaver unit and the first long hair cutter unit are moveably supported.

13. The electric hair cutting kit according to according to claim 1, wherein the comb teeth of the first comb unit are provided with a skin contact surface which partly covers the cutter skin contact surface of the first long hair cutter unit.