Beard trimmer

Patent metadata

Field	Value
Publication number	US-10486318-B2
Application number	US-201715716940-A
Country	US
Kind code	B2
Filing date	Sep 27, 2017
Priority date	Sep 28, 2016
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

A beard trimmer which has a handle, a motor and a removable head portion. The head portion has first long hair cutter unit for trimming the hair length that is provided with a non-foil type outer cutter and an inner cutter. A first comb unit is provided having comb elements located adjacent to multiple cutting slots of the outer cutter. One comb element is provided on each of the opposite sides of the outer cutter. Each comb element provided with a row of comb teeth and comb slots separating the comb teeth from another. Each of the comb teeth has a tooth skin contact surface which is located on an elevated upper level relative to a cutter skin contact surface of the outer cutter.

First claim

What is claimed is:

1. A beard trimmer comprising:
a. a handle,
b. a motor; and
c. a removable head portion, the head portion comprises a first long hair cutter unit having at least a first non-foil type outer cutter and a first inner cutter for trimming hair length,
d. 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 an x axis and cut hair between the first inner cutter and the first outer cutter,
e. wherein the first outer cutter comprises a cutter skin contact surface and multiple cutting slots, wherein said cutter skin contact surface and said multiple cutting slots are side by side and on opposite sides of the first outer cutter,
f. wherein a first inner cutting side of the first outer cutter faces the first inner cutter,
g. wherein a first comb unit is provided comprising comb elements located adjacent to the multiple cutting slots of the first outer cutter and with each of the comb elements respectively being disposed on each of the opposite sides of the first outer cutter,
h. wherein each of the comb elements is provided with a row of comb teeth and comb slots separating the comb teeth from one another, each of the comb teeth having a tooth skin contact surface which is located on an elevated upper level relative to the cutter skin contact surface and a distance between the tooth skin contact surface and the first inner cutting side defines a hair trimming length,
i. wherein the comb elements of the first comb unit comprise two rows of comb teeth, wherein each row is positioned on opposite sides of the first comb unit from one another and that form a hair cutting gap for cutting hair there between,
j. wherein the comb teeth of the first comb unit partly overlap and cover the cutter skin contact surface of the first outer cutter and/or wherein a width of the hair cutting gap equal to a width of the first outer cutter, and
k. wherein the width of the hair cutting gap ranges between 1.5 to 7 mm and wherein the width of the hair cutting gap corresponds to a width of the first outer cutter.

2. The beard trimmer according to claim 1 , wherein several of said comb teeth of the first comb unit are L-or T-shaped in cross section.

3. The beard trimmer according to claim 1 , wherein the width of the comb slots between two adjacent comb teeth is in the range of 0.3 -2.2 mm.

4. The beard trimmer according to claim 1 , wherein the comb teeth each has an inward tip portion which is directly adjacent to the hair cutting gap and an outward tip portion on each outwardly opposite side of each tooth and wherein a thickness of the inward tip portion in a z direction towards the handle, which is orthogonal to the x axis, is smaller than a thickness of the outward tip portion in the z direction and/or wherein the thickness of the inward tip portion in the z direction is the smallest thickness of each of the teeth and/or wherein the tooth skin contact surface comprises an indentation towards the hair cutting gap relative to a planar plane over the outermost portions of all of the comb teeth.

5. The beard trimmer according to claim 1 , wherein one of the comb teeth on one side of the comb unit is connected with one of the comb teeth on the opposite side of the comb unit.

6. The beard trimmer according to claim 1 , wherein all of the comb teeth are directly connected with each other by an elongate periphery wall.

7. The beard trimmer according to claim 1 , wherein the first comb unit is detachably snap fit connected with the first long hair cutter unit.

8. The beard trimmer according to claim 1 , wherein each of the comb teeth of one of the comb elements is aligned with each of the comb slots of the other comb element on the opposite side of the first comb unit.

9. The beard trimmer according to claim 1 , wherein the first comb unit comprise the same number of the comb teeth on both lateral sides of the first comb unit.

10. The beard trimmer according to claim 1 , wherein a second non-detachable comb unit is provided adjacent to the first outer cutter, the second comb unit is provided with a row of teeth positioned on both lateral sides of the first long hair cutter unit.

11. The beard trimmer according to claim 10 , wherein the second comb unit is covered by the first comb unit.

12. The beard trimmer according to claim 1 , wherein the head portion comprises a second long hair cutter unit which is covered by a second comb unit and wherein the second comb unit and the first comb unit[s] are each independently and detachably mounted on the second long hair cutter unit and the first long hair cutter unit[s], respectively.

13. The beard trimmer according to claim 12 , wherein the first long hair cutter unit and the second long hair cutter unit[s] are independently movable with respect to each other.

Assignees

• Braun Gmbh

Inventors

• Bady Udo
• Sikora Bernhard
• Stegmann Wolfgang
• Wetzel Matthias
• Behrendt Juergen

Classifications

• B26B19/048

  Complete cutting head being movable · CPC title

• B26B19/20

  with provision for shearing hair of preselected or variable length · CPC title

• B26B19/28

  Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive (electric motors per se H02) · CPC title

• B26B19/143

  Details of outer cutters · CPC title

• B26B19/42 Primary

  providing for straightening the hair to be cut, e.g. by means of bristles; providing for tensioning the skin, e.g. by means of rollers, ledges (skin-stretchers for shaving per se A45D27/38) · CPC title