Hair styling device

Patent metadata

Field	Value
Publication number	US-10537162-B2
Application number	US-201515328078-A
Country	US
Kind code	B2
Filing date	Jul 30, 2015
Priority date	Aug 1, 2014
Publication date	Jan 21, 2020
Grant date	Jan 21, 2020

Abstract

The present invention discloses a hair styling device (10, 20) comprising an inner cylindrical shell (121, 221) provided with through-holes; a rotatable cylindrical shell (122, 222) surrounding the inner cylindrical shell (121, 221); a drive assembly (123, 223) for driving the rotatable cylindrical shell (122, 222) to rotate around the inner cylindrical shell (121, 221) for winding hair around the inner cylindrical shell (121, 221); and a wind supply assembly (130, 230) for supplying hot air to any hair wound around the inner cylindrical shell (121, 221) through the through-holes. According to the present invention, hot air is supplied to the hair wound around the inner cylindrical shell (121, 221) so that the hair is heated evenly and shaped.

First claim

The invention claimed is:

1. A hair styling device, comprising:
an inner cylindrical shell provided with through-holes;
a rotatable cylindrical shell surrounding the inner cylindrical shell; wherein:
the rotatable cylindrical shell has at least an upward notch formed thereon and at least a hooked structure formed at a side of the upward notch and bending towards the upward notch;
a drive assembly for driving the rotatable cylindrical shell to rotate around the inner cylindrical shell, hair being caught by the hooked structure and wound around the inner cylindrical shell; and
a wind supply assembly for supplying hot air to any hair wound around the inner cylindrical shell through the through-holes.

2. The hair styling device according to claim 1 , wherein the inner cylindrical shell is fixed inside a top casing, the top casing having a hair inlet formed thereon and an air outlet formed at a top thereof.

3. The hair styling device according to claim 2 , wherein a wind shield is provided above the air outlet for guiding the hot air toward two sides of the wind shield.

4. The hair styling device according to claim 3 , wherein the air outlet is a cambered hole; and the wind shield is a corresponding cambered plate for guiding the hot air toward an inside edge and an outside edge of the cambered plate.

5. The hair styling device according to claim 2 , further comprising a handle connected to the top casing, an air inlet formed at a bottom of the handle.

6. The hair styling device according to claim 5 , wherein an air guiding element is disposed at a bottom of the inner cylindrical shell, the air guiding element comprising a top opening fixed at the bottom of the inner cylindrical shell and a bottom opening with a diameter bigger than that of the top opening and facing towards an outlet of a wind channel of the handle directly.

7. The hair styling device according to claim 6 , wherein at least an elastic strip made of heat resisting elastic material is disposed on an inner wall of the rotatable cylindrical shell along a longitudinal direction thereof and extends towards the inner cylindrical shell for applying pressure onto the hair wound around the inner cylindrical shell.

8. The hair styling device according to claim 2 , wherein a circular flange is formed on an outside surface of a lower portion of the rotatable cylindrical shell; and the lower portion of the rotatable cylindrical shell is installed at the bottom of the top casing and is rotatable relative to the top casing by means of a ring part cooperated with the circular flange.

9. The hair styling device according to claim 2 , wherein the top casing comprises an upper body and a lower body and at least a locking element is provided at a bottom edge of the upper body and at least a corresponding groove is provided at a top edge of the lower body, the upper body and the lower body being assembled together by means of cooperation of the locking element and the groove.

10. The hair styling device according to claim 9 , wherein the upper body has a first notch formed on a side surface of the upper body and extending to a top surface of the upper body; the lower body has a second notch formed on a side surface thereof; and when the upper body and the lower body are assembled together, the first notch and the second notch form a long and narrow hair inlet together.

11. The hair styling device according to claim 10 , wherein a circular connecting element is provided for connecting the top casing and the handle; a top of the circular connecting element is installed onto the bottom of the lower body; a number of locating notches are provided at a bottom of the circular connecting element uniformly and a number of corresponding locating protrusions are provided at the top of the handle; by means of cooperation of the locating notches and the locating protrusions, there are a number of installation locations provided between the top casing and the handle.

12. The hair styling device according to claim 11 , wherein a number of bumps, each of which is corresponding to one of the locating notches, are provided on outer surface of the bottom of the lower body.

13. The hair styling device according to claim 2 , further comprising a hair care assembly which comprises a holder installed in the top casing and a water absorbent element fixed on the holder and disposed inside the inner cylindrical shell by passing through a through hole formed at the top of the top casing.

14. The hair styling device according to claim 1 , wherein the drive assembly comprises a rotatable ring provided with an inner tooth surface, a gear engaging with the inner tooth surface of the rotatable ring and a first motor provided for driving the gear, the rotatable cylindrical shell being installed onto the rotatable ring, and the first motor being connected with and controlled by a control assembly.

15. The hair styling device according to claim 1 , wherein the drive assembly comprises a rotatable ring, a shaft, and a motor, the rotatable ring connected to the motor via the shaft and driven by the motor, the rotatable cylindrical shell being installed onto the rotatable ring, and the motor being connected with and controlled by a control assembly.

16. The hair styling device according to claim 1 , wherein the wind supply assembly comprises a wind channel, a heating element disposed inside the wind channel, fan blades disposed at a lower end of the wind channel and a second motor provided for driving the fan blades.

17. The hair styling device according to claim 1 , wherein the inner cylindrical shell is a heat-conducting cylindrical shell comprising a tubular structure made of metal material.

18. A hair styling device, comprising:
an inner cylindrical shell provided with through-holes;
a rotatable cylindrical shell surrounding the inner cylindrical shell; wherein:
the rotatable cylindrical shell has a hooked structure;
a drive assembly for driving the rotatable cylindrical shell to rotate around the inner cylindrical shell, wherein hair being caught by the hooked structure is wound around the inner cylindrical shell; and
a wind supply assembly for supplying hot air to the hair wound around the inner cylindrical shell through the through-holes.

19. The hair styling device of claim 18 , wherein the inner cylindrical shell is a heat-conducting cylindrical shell comprising a tubular structure made of metal material.

20. The hair styling device of claim 18 , wherein the inner cylindrical shell is fixed inside a top casing, the top casing having a hair inlet formed thereon and an air outlet formed at a top thereof.

Assignees

• Koninklijke Philips Nv

Inventors

• Yeung Ki Cheong

Classifications

• A45D6/02

  Devices for winding the hair upon steep-curlers · CPC title

• A45D2/02 Primary

  Hair winders or hair curlers for use substantially perpendicular to the scalp, i.e. steep-curlers (A45D6/14, A45D6/16 take precedence; with incorporated heating or drying means A45D2/36; heating devices designed for use external to and in connection with, hair curlers or hair wavers A45D4/02) · CPC title

• A45D2/36

  Hair curlers or hair winders with incorporated heating or drying means, e.g. electric, using chemical reaction · CPC title

• A45D1/02 Primary

  with means for internal heating, e.g. by liquid fuel · CPC title