Hairstyling appliance for curling hair with a stationary finger for locking and releasing the strand

Patent metadata

Field	Value
Publication number	US-10631610-B2
Application number	US-201615750080-A
Country	US
Kind code	B2
Filing date	Jul 12, 2016
Priority date	Aug 7, 2015
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

A hairstyling device for curling hair includes a housing including a rolling chamber, an insertion slot and an extraction opening arranged on a side end of the housing, and a mandrel which has one end fixed to the housing and a free end arranged near to the extraction opening, and which extends into the rolling chamber. A roller is arranged inside the rolling chamber and configured to roll the strand of hair around the mandrel, during rotation thereof. The device includes a stationary finger arranged at the contour of the extraction opening, the shape of which is configured with respect to the free end of the mandrel in order to block the rotation of the strand of hair around the mandrel without the risk of going beyond the finger during the rotation of the roller, and to promote the demoulding of the curled strand of hair along the mandrel.

First claim

The invention claimed is:

1. A hair styling appliance for curling a strand of hair comprising: a handle;
a housing extending perpendicular to the handle and which comprises a winding chamber having a shape of a revolution along a first axis, an insertion slot which extends along a full length of the housing in a direction of the first axis and which leads to the winding chamber, and an extraction opening arranged in a lateral end of the housing to which the winding chamber leads,
a heated mandrel which has one end fixed to an opposite lateral end of the housing and a free end arranged close to the extraction opening, and which extends in the winding chamber along an second axis, different from the first axis and at an acute angle to the first axis, the second axis, defined in a plane passing through the first axis and through the insertion slot,
a winder arranged in the winding chamber and rotatably mounted in at least one direction along the second axis, the winder being configured to wind the strand inserted in the insertion slot around the mandrel, during its rotation, and
a stationary finger arranged on a contour of the extraction opening and obstructing the extraction opening, the stationary finger extending perpendicular to the second axis, a shape of the stationary finger and a location of the stationary finger with respect to the free end of the mandrel cooperate to prevent the rotation of the strand around the mandrel without risk of bypassing the stationary finger during the rotation of the winder, and to help release the curled strand along the mandrel and wherein the stationary finger does not contact the mandrel.

2. The hair styling appliance according to claim 1 , wherein the stationary finger is parallel to the plane, and has at least one lateral locking face configured so that a straight line, which passes through a base of the at least one lateral locking face and perpendicularly cuts the second axis, forms with the at least one lateral locking face an angle of between 0 and 35 degrees.

3. The hair styling appliance according to claim 2 , wherein the winder turns in both a clockwise and a counterclockwise direction around the mandrel, the stationary finger having two lateral locking faces arranged symmetrically with respect to the plane.

4. The hair styling appliance according to claim 2 , wherein the angle formed with the at least one lateral locking face is 25 degrees.

5. The hair styling appliance according to claim 1 , wherein the stationary finger is parallel to the plane, said stationary finger being configured to extend radially inward relative to a peripheral contour of the mandrel in the direction of the other axis, at a height of between 6 mm and 18 mm.

6. The hair styling appliance according to claim 5 , wherein the height is 12 mm.

7. The hair styling appliance according to claim 1 , wherein the stationary finger is parallel to the plane, the stationary finger being spaced apart from the free end of the mandrel by a distance of between 1 mm and 5 mm.

8. The hair styling appliance according to claim 7 , wherein the distance is 3 mm.

9. The hair styling appliance according to claim 1 , wherein the stationary finger has an inner face arranged facing the free end of the mandrel, the inner face having a curved shape configured to support the release of the strand of curled hair through the extraction opening.

10. The hair styling appliance according to claim 9 , wherein the inner face has an end which extends in the form of a protrusion.

11. The hair styling appliance according to claim 1 , further comprising removable fixing means arranged between the stationary finger and the contour of the extraction opening.

12. The hair styling appliance according to claim 1 , wherein the winder is hollow and has a surface of revolution along the second axis, and is arranged with a first spacing around the mandrel in the winding chamber, coaxial with the mandrel along the second axis, the winder having on its surface of revolution catching means which are configured to catch the strand in the winder's initial position, and then to rotate the strand during the rotation of the winder, the winder being rotatably mounted along the second axis and configured to successively grasp the proximal end of the strand, concomitantly wind the strand around the mandrel and the winder, and then completely wind the strand around the mandrel, during its rotation in at least one direction.

13. The hair styling appliance according to claim 12 , wherein the winder has a free edge arranged on the side of the free end of the mandrel, and wherein the catching means comprises a notch which extends on the surface of revolution of the winder and leads to the free edge, the notch being configured to allow the strand to penetrate the first spacing between the mandrel and the winder, in an initial position of the winder.

14. The hair styling appliance according to claim 13 , further comprising gripping means formed on at least one of two ends of the notch, intersecting with the free edge.

15. The hair styling appliance according to claim 14 , wherein the gripping means are formed on both ends of the notch.

16. The hair styling appliance according to claim 12 , wherein the winder has a conical shape along the second axis, the conical shape presenting an expansion in the direction of the free end of the mandrel.

17. The hair styling appliance according to claim 1 , wherein the insertion slot has two walls which extend longitudinally in the direction of the first axis and which form between them a V configured to help the strand penetrate the winding chamber.

18. The hair styling appliance according to claim 1 , further comprising heating means configured to heat the strand of hair inside the winding chamber.

19. The hair styling appliance according to claim 18 , wherein the heating means are arranged in the mandrel.

Assignees

• Seb Sa

Inventors

• Bonnemaire Baptiste
• Fereyre Régis

Classifications

• A45D1/16 Primary

  with a single heated member (A45D1/02 takes precedence) · CPC title

• A45D2/02

  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

• A45D2/10 Primary

  in the form of spools or bobbins · CPC title

• A45D1/04

  by electricity · CPC title

• A45D6/02

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