Electric shaver

Patent metadata

Field	Value
Publication number	US-10618186-B2
Application number	US-201715711526-A
Country	US
Kind code	B2
Filing date	Sep 21, 2017
Priority date	Sep 28, 2016
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

The invention refers to an electric shaver with a first cutter element and a second cutter element which are movable relative to each other in an oscillating manner along a first horizontal cutter oscillation axis. Each cutter unit is mounted in the cartridge pivotably about a second horizontal tilting axis and axially displaceably parallel to a vertical axis. The first horizontal cutter oscillation axis is perpendicular to the vertical axis and perpendicular to the second horizontal tilting axis.

First claim

What is claimed is:

1. An electric shaver comprising a shaver housing, a shaver head attached to the housing and at least one cartridge provided in or on said shaver head, wherein the cartridge comprises at least one cutter unit with a first upper cutter element and a second lower cutter element at least one of which is movable relative to the other in an oscillating manner along a first horizontal cutter oscillation axis, wherein each of the cutter unit's first upper cutter element is mounted in the at least one cartridge pivotably about a second horizontal tilting axis relative to the shaver head and axially displaceably parallel to a vertical axis relative to the shaver head, with the first horizontal cutter oscillation axis being perpendicular to the vertical axis and perpendicular to the second horizontal tilting axis, wherein the at least one cartridge is supported pivotably relative to the shaver head about the first horizontal cutter oscillation axis or a third horizontal axis parallel to the first horizontal cutter oscillation axis.

2. The electric shaver according to claim 1 , wherein the at least one cartridge is supported pivotably about the second horizontal tilting axis relative to the shaver head.

3. The electric shaver according to claim 1 , wherein the at least one cartridge comprises at least two cutter units which are coupled with each other such that pivoting about the second horizontal tilting axis and/or displacement parallel to the vertical axis of a first cutter unit mounted in said cartridge causes pivoting about the second horizontal tilting axis and/or displacement parallel to the vertical axis of a further cutter unit mounted in said cartridge.

4. The electric shaver according to claim 1 , wherein the cartridge is divided into at least two portions, which are provided to be independently movable with respect to each other, wherein each portion comprises at least one cutter unit.

5. The electric shaver according to claim 1 , wherein the cartridge fully or partly envelopes the shaver head or the shaver head fully or partly envelopes the cartridge.

6. The electric shaver according to claim 5 , wherein the shaver head is mounted in or on said shaver housing pivotably about the first horizontal cutter oscillation axis relative to the shaver housing.

7. The electric shaver according to claim 1 , wherein the first cutter element is a foil type cutter element and that the second lower cutter element is a blade type cutter element.

8. The electric shaver according to claim 1 , further comprising a drive unit located at least in part within the shaver housing, said drive unit being mounted at the shaver housing and stationary relative to said shaver head.

9. The electric shaver according to claim 8 , wherein the drive unit is coupled to the second lower cutter element by means of a coupling, the coupling comprising a transmitter, the second lower cutter element and a coupling part, wherein the coupling part comprises a seat for receiving the transmitter, and wherein the transmitter, the cutter element and the coupling part are arranged and formed such that the transmitter is constrained to the cutter element in a direction parallel to the first horizontal cutter oscillation axis while having a degree of freedom in at least two rotational directions and in at least one translational direction parallel to the vertical axis.

10. The electric shaver according to claim 9 , wherein the transmitter is rotatable relative to the coupling part around the vertical axis and that the coupling part is rotationally constrained to the second lower cutter element in the rotational direction around the vertical axis, wherein the coupling part comprises an at least in part spherical or cylindrical outer surface and the second lower cutter element comprises a corresponding at least in part spherical or cylindrical inner surface.

11. The electric shaver according to claim 9 , wherein the coupling part comprises a bearing shell receiving the free end of the transmitter, wherein the bearing shell is mounted to the second lower cutter element via a con-rod which is pivotable about an axis perpendicular to the first horizontal cutter oscillation axis and perpendicular to the vertical axis.

12. The electric shaver according to claim 1 , wherein the at least one cutter unit is gimbal-mounted on the shaver housing and/or shaver head.

13. The electric shaver according to claim 1 , wherein the at least one cutter unit is mounted to the shaver housing and/or shaver head by elastically deformable connecting elements.

14. The electric shaver according to claim 1 , further comprising at least one elastically deformable biasing element, wherein the elastically deformable biasing element biases the second lower cutter element at least in a direction parallel to the vertical axis into a home position, and/or biases the cartridge into a neutral rest position.

Assignees

• Braun Gmbh

Inventors

• Erndt Andreas
• Berger Philipp
• Perez Lopez Cirilo Javier
• Kappes Diana

Classifications

• B26B19/386

  Means for attaching the head thereto · CPC title

• B26B19/384

  Dry-shaver foils; Manufacture thereof · CPC title

• B26B19/063

  Movable or adjustable cutting head · CPC title

• B26B19/048

  Complete cutting head being movable · CPC title

• B26B19/282

  Motors without a rotating central drive shaft, e.g. linear motors · CPC title