Hair care device

Patent metadata

Field	Value
Publication number	US-10506859-B2
Application number	US-201414774215-A
Country	US
Kind code	B2
Filing date	Feb 13, 2014
Priority date	Apr 25, 2013
Publication date	Dec 17, 2019
Grant date	Dec 17, 2019

Abstract

The present invention relates to a hair care device (10) for straightening, curling and/or volumizing hair, the hair care device comprising: —a first jaw (12) that extends along a first longitudinal axis (30) and comprises a first handle part (16) which is coupled to a first heating tip (20), wherein the first heating tip (20) has a convex-shaped first heating surface (34), and distance elements (36, 40) to prevent a user from getting burned, preferably a bristle plate (36) that comprises a plurality of bristles or ribs (40), wherein the distance elements are arranged at a side (38) of the first heating tip (20) opposite the convex-shaped first heating surface (34), and wherein the first heating tip (20) is rotatably coupled to the first handle part (16) to permit a user to rotate the first heating tip (20) relative to first handle part (16) about the first longitudinal axis (30) —a second jaw (14) that extends along a second longitudinal axis (32) and comprises a second handle part (18) which is coupled to a second heating tip (22); and wherein the first and the second jaw (12, 14) are coupled to each other, and via the handle parts (16, 18) moveable relative to each other between an open position and a closed position.

First claim

The invention claimed is:

1. A hair care device for straightening, curling and/or volumizing hair, the hair care device comprising:
a first jaw that extends along a first longitudinal axis and comprises a first handle part which is coupled to a first heating tip, wherein the first heating tip has a convex-shaped first heating surface;
distance elements that comprise a plurality of bristles or ribs arranged at and extending outwardly from a planar flat bottom surface of the first heating tip opposite the convex-shaped first heating surface; and
a second jaw that extends along a second longitudinal axis and comprises a second handle part which is coupled to a second heating tip,
wherein the first and the second jaw are coupled to each other, and via the handle parts moveable relative to each other between an open position and a closed position, and
wherein the first heating tip is rotatably coupled to the first handle part to permit a user to rotate the first heating tip relative to first handle part about the first longitudinal axis to switch between (i) a first position for a curling mode in which the distance elements (i)(a) face towards, (i)(b) are kept at a distance away from, and (i)(c) do not contact the second heating tip in response to the first and the second jaws being in the closed position, and (ii) a second position for a straightening and volumizing mode in which the distance elements face away from the second heating tip and keep the first and second heating tips away from a user's scalp to prevent the user from getting burned.

2. The hair care device according to claim 1 , wherein the distance elements further comprise a bristle plate that comprises the plurality of bristles or ribs outwardly extending from a flat surface of the bristle plate.

3. The hair care device according to claim 2 , wherein the first heating tip is rotatable relative to the first handle part about the first longitudinal axis between a first position, in which the outwardly extending plurality of bristles or ribs of the bristle plate faces towards the second heating tip, and a second position, in which the outwardly extending plurality of bristles or ribs of the bristle plate faces away from the second heating tip.

4. The hair care device according to claim 2 , wherein the bristle plate is thermally insulated from the first heating tip and comprises a temperature-resistant synthetic material.

5. The hair care device according to claim 2 , wherein the bristles or ribs protrude from the bristle plate, and wherein a multitude of said bristles or ribs is flexible and comprises a rounded free end.

6. The hair care device according to claim 2 , wherein the bristle plate comprises a plurality of retractable bristles which are retracted when the bristle plate faces the second jaw and which are not retracted when the bristle plate does not face the second jaw.

7. The hair care device according to claim 3 , wherein the second jaw further comprises at least one mechanical end stop element at a free end of the second heating tip that is configured to keep the distance elements at a distance away from and not in contact with the second heating tip when (i) the first heating tip is in the first position and (ii) the first and the second jaws are in the closed position.

8. The hair care device according to claim 1 , wherein the first and the second jaw are swivel-mounted relative to each other to permit a user to swivel the jaws relative to each other about a hinge axis between the open position and the closed position, wherein the hinge axis runs transverse to the first and second longitudinal axes.

9. The hair care device according to claim 1 , wherein the first heating tip has a generally crescent shaped cross-section.

10. The hair care device according to claim 1 , wherein the second heating tip comprises:
a convex-shaped second heating surface at a side that faces away from the first heating tip; and
a third heating surface that faces towards the first heating tip and has at least in part a concave-shaped contour that matches an outer contour of the first heating surface of the first heating tip.

11. The hair care device according to claim 1 , wherein the first jaw comprises a first grip element at a free end of the first heating tip to permit a user to rotate the first heating tip relative to the first handle part, wherein said free end of the first heating tip is opposite the end at which the first heating tip is connected to the first handle part.

12. The hair care device according to claim 11 , wherein the first grip element is thermally insulated from the first heating tip and comprises a temperature-resistant synthetic material.

13. The hair care device according to claim 11 , wherein the second jaw comprises a second grip element at a free end of the second heating tip, wherein said free end of the second heating tip is opposite the end at which the second heating tip is connected to the second handle part.

14. The hair care device according to claim 13 , wherein at least one mechanical end stop element is arranged at one or more of the first and the second grip element.

15. The hair care device according to claim 13 , wherein the first and second grip elements have matching outer contours, and wherein a locking mechanism for preventing a rotation of the first heating tip relative to the first handle part when the jaws are in the closed position, is realized by said matching outer contours that mate each other, when the first heating tip is in the second position and the jaws are in the closed position.

16. The hair care device according to claim 1 , further comprising a locking mechanism for preventing a rotation of the first heating tip relative to the first handle part, when the first and the second jaws are in the closed position.

Assignees

• Koninklijke Philips Nv

Inventors

• Putzer Arthur
• Eberharter Tamara

Classifications

• A45D2/001

  Hair straightening appliances · CPC title

• A45D1/04

  by electricity · CPC title

• A45D2001/045

  the power being supplied by batteries · CPC title

• A45D2/002 Primary

  with combs · CPC title