Shaver with light source

Patent metadata

Field	Value
Publication number	US-10717201-B2
Application number	US-201815879514-A
Country	US
Kind code	B2
Filing date	Jan 25, 2018
Priority date	Jan 26, 2017
Publication date	Jul 21, 2020
Grant date	Jul 21, 2020

Abstract

The present invention is concerned with an electrically operable hair removing device, such as a shaver comprising a housing, an energy source located in the housing, at least one hair removal unit and at least one electrically operated equipment, like a light source, which is movable relative to the housing. During its use, the at least one electrically operated equipment is not directly connected to the energy source located in the housing.

First claim

What is claimed is:

1. An electrically operable hair removing device comprising: a housing, an energy source located in the housing, at least one hair removal unit and at least one electrically operated equipment coupled to the at least one hair removal unit, the at least one hair removal unit is movably attached to the housing, wherein, during use of the at least one electrically operated equipment, the at least one electrically operated equipment is not directly physically connected to the energy source located in the housing and the at least one electrically operated equipment is connected to the energy source located in the housing by a wireless power transfer system comprising a primary induction coil located in the housing and coupled to the energy source and a secondary induction coil located in the at least one hair removal unit and coupled to the at least one electrically operated equipment.

2. The device in accordance with claim 1 , wherein at least one of the induction coils is provided on a flexible printed circuit board having a thickness of less than about 1.5 mm, the flexible printed circuit board is provided in at least one of the housing or the at least one hair removal unit.

3. The device in accordance with claim 1 , wherein the primary induction coil is provided on a flexible printed circuit board in the housing and the secondary induction coil is provided on a flexible printed circuit board in the at least one hair removal unit.

4. The device in accordance with claim 1 , further comprising a motor and a battery as the energy source, wherein the primary induction coil is provided on a flexible printed circuit board located adjacent to the motor or adjacent to the battery.

5. The device in accordance with claim 1 , wherein the primary induction coil has an elongate shape.

6. The device in accordance with claim 1 , wherein the secondary induction coil is provided on a flexible printed circuit board provided with at least one LED unit, wherein the at least one electrically operated equipment is the at least one LED.

7. The device in accordance with claim 1 , wherein the housing is an elongate shaver housing defining a longitudinal axis, the at least one hair removal unit movably attached to the housing is an at least one long-hair trimmer unit, and the at least one electrically operated equipment is at least one light source which is mounted on or integrated in the at least one long-hair trimmer unit.

8. The device in accordance with claim 7 , wherein the at least one long-hair trimmer unit is movably attached to the housing by an axially shiftable guiding member received on the housing substantially parallel to the longitudinal axis between a retracted idle position and an extended operating position, wherein the at least one light source is movable together with the at least one long-hair trimmer unit between the retracted position and the extended position.

9. The device in accordance with claim 8 , further comprising first and second short-hair cutters both of which are connected to the housing, wherein the at least one light source when in the retracted position has an illuminance in a range of about 200 lx to about 2000 lx in an illuminated area of a plane defined by a distal edge of each of the first and second short-hair cutters and the at least one light source when in the extended operating position generates a light spot on the plane having an illuminance decreasing from a center of the light spot towards boundaries of the light spot by a factor of less than about 2 per mm.

10. The device in accordance with claim 7 , further comprising a control unit in the housing and connected to the primary induction coil, wherein the control unit is configured such that the at least one light source provides visual feedback to a user.

11. The device in accordance with claim 1 , further comprising at least one short-hair cutter unit connected to the housing, wherein the at least one short-hair cutter unit is provided with an inner cutter linearly oscillating relative to an outer cutter which comprises a bent shear foil which is provided with hair capture openings.

12. An electrically operable hair removing device comprising: a housing, an energy source located in the housing, at least one short-hair cutter unit connected to the housing and at least one long-hair trimmer unit, and at least one electrically operated equipment coupled to the at least one long-hair trimmer unit, the at least one long-hair trimmer unit is movably attached to the housing, wherein, during use of the at least one electrically operated equipment, the at least one electrically operated equipment is not directly physically connected to the energy source located in the housing and the at least one electrically operated equipment is connected to the energy source located in the housing by a wireless power transfer system comprising a first wireless power transfer element coupled to the energy source and a second wireless power transfer element coupled to the at least one electrically operated equipment.

13. The device in accordance with claim 12 , wherein the at least one short-hair cutter unit is provided with an inner cutter linearly oscillating relative to an outer cutter which comprises a bent shear foil which is provided with hair capture openings.

Assignees

• Braun Gmbh

Inventors

• Fuerst Stefan
• Fuellgrabe Martin
• Neyer Christian
• Schuebel Christian

Classifications

• B26B19/3873

  Electric features; Charging; Computing devices · CPC title

• A45D2026/008

  Details of apparatus for removing superfluous hair · CPC title

• A45D26/0033

  with rollers · CPC title

• B26B19/46 Primary

  providing for illuminating the area to be shaved or clipped · CPC title

• A45D27/00

  Shaving accessories (containers for handling shaving soap A45D40/00; shaving mirrors A45D42/08) · CPC title