Dry shaver

Patent metadata

Field	Value
Publication number	US-9969093-B2
Application number	US-201514972297-A
Country	US
Kind code	B2
Filing date	Dec 17, 2015
Priority date	Dec 23, 2014
Publication date	May 15, 2018
Grant date	May 15, 2018

Abstract

The invention relates to an electric shaver comprising at least a first long hair cutter element that is provided with a first under cutter and a first, non-foil type upper cutter, wherein one or both of the first under cutter and the first upper cutter oscillate relative to the other in a direction parallel to an axis (x) and at least one guard that is provided adjacent to the second upper cutter and extends parallel to axis (x), the guard is provided with a comb structure having several teeth each being provided with a skin contact top portion and several slots being provided between the teeth each being having a low portion for guiding the hair in between and wherein the comb structure is provided as a micro comb structure having a depth of the slots from the top portion of the teeth to the low portion of the slots ranging between 0.2 to 0.7 mm.

First claim

What is claimed is:

1. An electric shaver comprising at least a first long hair cutter element that is provided with a first under cutter and a first, non-foil type upper cutter, wherein at least one of the first under cutter and the first upper cutter oscillates relative to the other in a direction parallel to an axis (x) and at least one guard that is provided adjacent to the first upper cutter and extends parallel to said axis (x), said guard is provided with a comb structure having several teeth each being provided with a skin contact top portion and several slots being provided between the teeth and each having a low portion for guiding hair in between and wherein the comb structure is provided as a micro comb structure having a depth of each slot from the top portion of the tooth to the low portion of the slot ranging between 0.2 to 1.3 mm;
wherein the guard comprises a base structure for mounting said guard within the shaver, the guard further comprises an inclined portion for connecting the comb structure with the base structure, said inclined portion being inclined in a direction away from the first long hair cutter element so that a first gap is provided between the skin contact top portion of the tooth and an adjacent side of the first upper cutter;
wherein at least a first short hair cutting element is provided and having a second under cutter and a second, foil type upper cutter, wherein at least one of the second under cutter and the second foil type upper cutter oscillates relative to the other in a direction parallel to the axis (x), said first short hair cutting element and said first long hair cutter element are arranged side by side with the guard extending between both, wherein a second gap is provided between the skin contact top portion of the teeth and of the guard and an adjacent side of the second upper cutter and wherein the width in a width direction transverse to said axis (x) of the second gap is equal to or up to 3 times the width in a width direction transverse to the axis (x) of the first gap;
wherein the first long hair cutter element and the first short hair cutting element are arranged in a shaver head to be floatable towards and away from a shaver handle portion and wherein the first short hair cutting element is arranged to float independent from the first long hair cutter element; and
said electric shaver further comprising at least one additional guard provided between the first long hair cutter element and a second short hair cutter element.

2. The shaver of claim 1 , wherein said first gap is provided between the skin contact top portion of the tooth and the adjacent side of the first upper cutter which are on the same height level.

3. The shaver of claim 2 , wherein said second short hair cutter element is provided with a third under cutter and a second, foil type upper cutter, wherein at least one of the third under cutter and the third foil upper cutter oscillates relative to the other in a direction parallel to the axis (x), said second short hair cutter element and said first long hair cutter element are arranged side by side with the at least one additional guard extending between both, wherein a third gap is provided between the skin contact top portion of the tooth of the at least one additional guard and an adjacent side of the third upper cutter and wherein the width in a width direction transverse to said axis (x) of the third gap is equal to or up to 2 times the width in a width direction transverse to the axis (x) of the first gap.

4. The shaver of claim 1 , wherein each of aid teeth is provided on both sides thereof with a rounding along its longitudinal extension in a direction along the axis (x) and is provided with a rounding on both sides thereof along a direction transverse to said axis (x) toward and away from the adjacent first upper cutter.

5. The shaver of claim 1 , wherein the width of each tooth and the width of each slot in a direction along its longitudinal extension along said axis (x) are equal.

6. The shaver of claim 1 , wherein the width of each tooth in a direction along its longitudinal extension along said axis (x) ranges between 0.2 to 0.8 mm.

7. The shaver of claim 1 , wherein the width of each slot in a direction along its longitudinal extension along said axis (x) ranges between 0.2 to 0.8 mm.

8. The shaver of claim 1 , wherein a skin contact surface of the first upper cutter projects in a direction towards a skin of a user relative to the skin contact top portion of each tooth so that the distance between skin contact surface and the skin contact top portion is between 0.1 to 0.4 mm.

9. The shaver of claim 1 , wherein the at least one guard and the at least one additional guard are made from a thermoplastic material.

10. The shaver of claim 1 , wherein the at least one guard and the at least one additional guard are made from a metal material.

Assignees

• Braun Gmbh

Inventors

• Piesker Thorsten
• Erndt Andreas
• Herzenstiel Ines
• Hottenrott Sebastian

Classifications

• B26B19/12 Primary

  of the oscillating- cutter type; Cutting heads therefor; Cutters therefor (B26B19/04 takes precedence) · CPC title

• B26B19/382

  Built-in accessories · CPC title

• B26B19/042 Primary

  Long hair cutters or older types comprising a cutting grid · CPC title