CN201657926U - Hair curler - Google Patents

Abstract

A hair iron for styling hair includes a pair of hinged elongated clamps having respective inner clamping surfaces opposite one another and configured to hold and engage hair. An elongated heating section encloses the heating element and has a peripheral outer surface with an outer raised surface disposed generally opposite the respective inner clamping surface. At least one resilient rib extends along the outer raised surface and allows a user to pull the tool through the hair with a generally constant hair-gripping force.

Description

hair iron

technical field

The present invention relates to a hair iron for styling hair, in particular to an electric appliance for curling or straightening hair.

Background technique

A known type of handheld electric curling or straightening iron uses two clamps or arms, at least one of which is heated and the other cooperates to hold the hair in contact with the first and is accessible from the The open position for inserting the hair moves to the closed position for placing the hair in contact with the heater.

The hair irons of the prior art have some disadvantages in that if the operation is performed too fast, the treatment time is too short, the treatment result may vary and thus the hair is not styled correctly, while moving too slowly may damage the hair due to overheating. A novice user unfamiliar with hair irons may have difficulty properly controlling the hair-clamping force as the clamping pressure between the heating body and the hair varies. When a tool with relatively smooth and hard gripping surfaces is pulled through the hair, any change in the user's hold on the tool creates a variable contact pressure, which varies as the hair is pulled unevenly. Contact pressure can cause discomfort. Treatment results for a lock of hair can also produce an inconsistent appearance.

One way to solve this problem in older hair irons is to provide a holder with a brush or comb for gripping the hair, however such a brush or comb makes the tool less compact and may limit what the tool can be used for Ways to do different manipulations such as doing curly hair and doing straight hair.

It will be appreciated that there is a need to provide a hair iron that can be easily used by a novice user to achieve hair shaping of high quality, durable, with a consistent appearance throughout the hair, while being easy to use and convenient to style hair. The device should be able to ensure good heat transfer between the heating part of the device and the hair while ensuring protection of said hair during operation and greater reliability. The device should be able to ensure good contact pressure between the shaping device and the hair during treatment. The device should have a simple and compact structure that can be manufactured at low cost. It is an object of the present invention to address the above needs or more generally to provide an improved electric hair iron.

Contents of the invention

According to one aspect of the present invention, there is provided a hair iron for styling hair, comprising:

a pair of elongated clamps, each clamp having a proximal clamp portion and a distal clamp portion, the distal portion of each clamp having a peripheral surface;

an inner clamping surface and an outer surface, said inner clamping surface and said outer surface constituting each peripheral surface, the inner clamping surfaces facing each other, the inner clamping surface and the outer surface being separated by the edge of the clamping surface, the the distal portion of the first clamp has an elongated heating portion housing a heating element;

a hinge connecting the proximal end portion of the clamp for movement between a closed position in which the inner gripping surfaces abut for gripping hair between the inner gripping surfaces and an open position Between, in said open position, the inner clamping surfaces are separated, characterized in that:

At least one resilient rib extends along the outer surface of the elongated heating portion.

Each clamp may include a handle portion adapted to be grasped by a user and integrally formed with a respective distal end of the clamp. A handle portion of a first of the clamps may be substantially thermally decoupled from the heating portion. The hinge may be provided at one end of the clamp, or at an intermediate location along the clamp.

Preferably, at least one resilient rib extends along a portion of the outer surface located substantially opposite the corresponding inner clamping surface.

Preferably, portions of the outer surface are convex and the at least one resilient rib is linear and extends parallel to the longitudinal axis of the elongated heating portion. Optionally, the longitudinal axis of at least one resilient rib may be curved.

Preferably, at least one rib has a substantially constant cross-section over its entire length and protrudes from the raised surface by a substantially constant dimension throughout its length.

Preferably, the peripheral surface has a substantially constant cross-section over its entire length.

Preferably, at least one resilient rib has a raised outer rib surface protruding from the outer raised face of the heating portion. Optionally, the outer surface of the ribs may protrude from the outer raised surface of the heating part due to thermal expansion only when the heating part is at an elevated temperature, otherwise it may be flush with the outer raised surface of the heating part or in said heating part. under the outer convex surface of the part.

Preferably, the raised outer rib surface has a substantially constant radius of curvature.

At least one elastic rib may be bonded to the outer convex surface. Optionally, at least one elastic rib may be formed on the strip received in the elongated groove of the heating portion.

Preferably, the heating portion has a longitudinally extending plane of symmetry, and each elastic rib is positioned approximately symmetrically with respect to the plane of symmetry. For example, where one elastic rib is provided, said elastic rib is separated by the plane, and where two ribs are provided, said two ribs may be provided on either side of said plane.

Preferably, the inner gripping surfaces are complementary and may be shaped to provide a specific curl to the hair. Preferably, the inner gripping surface is substantially flat. Preferably, the inner gripping and outer raised surfaces are polished metal surfaces.

Preferably, the width of at least one rib is between 2% and 20% of the width of the raised outer surface of the heating portion. Preferably, the hardness of at least one elastic rib is between Shore A30 and Shore D50. Preferably, at least one rib is formed from silicone rubber.

Preferably, each clamp has an elongated heating portion. Optionally, the two elongated heating parts may have substantially the same form with respective at least one elastic rib.

Another aspect of the present invention provides a method for styling hair using the above-mentioned hair iron, the method comprising the following steps:

wrapping a lock of hair around the elongated heating portion of one of the clamps and between the inner clamping faces;

gripping the clamp to clamp the lock of hair between the clamping surfaces; and

Pull the iron along the lock of hair.

The present invention provides a hair iron which is particularly effective for use with the method described above. The iron is economical in construction and has an overall simple design that minimizes manufacturing costs and maximizes performance, thereby allowing the user to more easily pull the tool through the hair with a generally constant hair clamping force.

Description of drawings

Preferred forms of the invention are described below by way of example with reference to the accompanying drawings, in which:

1 is a perspective view of a hair iron for styling hair according to a first embodiment of the present invention;

Figure 2 is a cross-sectional view through the hair iron clamp of Figure 1 in a closed position;

3 is a cross-sectional view through the clamp of the hair iron according to the second embodiment of the present invention;

Figure 4 is an end view of the clamp of a hair iron according to a third embodiment of the present invention; and

Figures 5 and 6 are schematic end views showing the operation of a hair iron for styling hair according to the present invention

Detailed ways

Referring to the drawings, Figure 1 shows a first embodiment of a hand-held electric hair iron, shown in an open position, having first and second elongate clamps connected by a hinge 12 10, 11. Both clamps 10, 11 are hollow structures and include elongated heating portions 13, 14 at the distal ends of the first and second elongated clamps, which are heated by respective internally housed resistive elements (not shown). shown) heating. Electric power is provided to the heating element via electrical wires 30 . The heating portions 13, 14 have complementary planar inner gripping surfaces 15, 16 which face each other and are configured to hold and engage hair. The elongated peripheral surface of the heating portion 13 comprises an inner gripping face 15 and an outer face 37 separated by edges 24 , 25 of the gripping face 15 . The outer surface 37 includes a raised portion 17 disposed generally opposite the inner clamping face 15 . In the illustrated embodiment, the resilient rib 18 extends along the raised portion 17 of the outer surface 37 from which it protrudes. In alternative embodiments, the resilient ribs 18 may be provided at one or more other locations spaced around the outer surface 37 of the heating portion 13 .

As best shown in Figure 2, the basic structure of the clamp 10 is a hollow molded polymeric structure, while the element housing 20 and plate 19 are metal such as chrome steel, and the respective clamping faces 15 and 17 of the clamp are polished. The outer surface 37 of the heating portion 13 may also include opposing side walls 21 disposed between the element housing 20 and the plate 19, the respective sides 22, 23 of the side walls 21 forming opposing portions of the peripheral surface of the heating portion 13, and each transverse It spans between a longitudinal edge 24 , 25 of the inner clamping surface 15 and the raised portion 17 . However, it is to be appreciated that the sidewall 21 is not a necessary feature of the clamp, for example the curved raised portion 17 of the peripheral surface could span directly between the opposed longitudinal edges 24, 25 of the inner clamping face 15.

The resilient rib 18 may be positioned in a linear groove of the plate 19 and has a raised rib surface 26 which may have a smooth surface with a constant radius of curvature. A central plane 27 extends longitudinally and separates the clamps 10 , 11 . The elastic ribs 18 may be positioned at the top of the outer raised portion 17 such that they are also separated by flat surfaces 27 .

In a preferred embodiment, the width of the rib 18 is between 2% and 20% of the width of the raised portion 17 , more preferably between 5% and 10% of the width of the raised portion 17 . Ribs 18 of silicone rubber having a durometer of Shore A40 have been found to provide good performance, however, durometers between Shore A30 and Shore D50 may give satisfactory performance.

The heating portion 14 has a different form from the heating portion 13 and does not have the raised portion 17 of the heating portion 13 but has a flat surface 28 opposite the inner clamping surface 16 so that the clamp 11 has a substantially rectangular cross-section.

In the illustrated embodiment, the rib 18 protrudes from the raised surface by a generally constant dimension throughout its length, and the peripheral surface has a generally constant cross-section throughout its length. The longitudinal ends of the ribs 18 are spaced apart from the longitudinal ends of the elongated heating portion 13 .

FIG. 3 illustrates a second embodiment of a hair iron for styling hair, in which both clips have a heating portion 13 as described above with respect to the first embodiment, and each clip has a resilient rib 18 .

FIG. 4 shows a third embodiment of a hair iron for styling hair and includes at least one elongated heating portion 113 having a pair of parallel, generally coextensive resilient ribs protruding from the raised portion 17. Part 18, but otherwise has the structure of the heating part 13. The ribs 18 are arranged symmetrically on opposite sides of the central plane 27 .

In use, with the clamps 10 , 11 open as shown in FIG. 5 , a lock of hair is wrapped in loops 30 around the elongate heating portion 13 , 113 . Next, as shown in FIG. 6 , the user grips the clamps 10 , 11 to clamp the lock of hair between the clamping surfaces 15 , 16 . The hair held between the clamping surfaces 15, 16 is folded in half while elastic ribs 18 disposed generally opposite the inner clamping surfaces engage the apices of the loops of hair. In this way, the hair is pressed against the rib(s) 18 while the hair is softened by the heat. The user then pulls the iron along the lock of hair to straighten the hair.

Various aspects of the invention have been described by way of example only, and it should be appreciated that modifications and additions can be made thereto without departing from the scope of the invention.

Claims (16)

1. the hair iron of a shaping hair comprises:

A pair of elongated anchor clamps, each anchor clamps all have near-end holder part and distal fixture part, and the described distal fixture of each anchor clamps partly has periphery surface;

Interior clamping area and outer surface, clamping area and outer surface constitute each periphery surface in described, clamping area toward each other in described, clamping area and described outer surface are separated by the edge of described clamping area in described, and the distal fixture of first anchor clamps in the described anchor clamps partly has the elongated heating part of the heating element heater of packing into;

Hinge, described hinge connect the described near-end holder part of described anchor clamps, are used for moving between closing position and open position, in described closing position, described interior clamping area adjacency is used for hair is clamped between the described interior clamping area, at described open position, described interior clamping area is separated out

It is characterized in that:

At least one elastomeric ribs is extended along the outer surface of described elongated heating part.

2. hair iron according to claim 1 is characterized in that: described at least one elastomeric ribs along described outer surface with corresponding in the part that roughly is oppositely arranged of clamping area extend.

3. hair iron according to claim 2 is characterized in that: the described part of described outer surface is protruding, and described at least one elastomeric ribs is linear and the longitudinal axis that is parallel to described elongated heating part extends.

4. hair iron according to claim 3 is characterized in that: described at least one flank has the constant cross section on its whole length, and gives prominence to the size of constant on its whole length from described crowning.

5. hair iron according to claim 4 is characterized in that: described periphery surface has the cross section of constant on its whole length.

6. according to each described hair iron among the claim 1-5, it is characterized in that: described at least one elastomeric ribs has from the outstanding protruding external ribs surface of the outer lug face of described heating part.

7. hair iron according to claim 6 is characterized in that: described protruding external ribs surface has the radius of curvature of constant.

8. hair iron according to claim 6 is characterized in that: described elastomeric ribs be formed on be contained in described heating part elongated slot in band spare on.

9. according to each described hair iron among the claim 1-5,7 and 8, it is characterized in that: described heating part has the symmetrical plane of longitudinal extension, and each elastomeric ribs all is oriented to roughly symmetrical with respect to described symmetrical plane.

10. according to each described hair iron among the claim 1-5,7 and 8, it is characterized in that: clamping area complementation in described.

11. hair iron according to claim 10 is characterized in that: clamping area is a general planar in described.

12. hair iron according to claim 11 is characterized in that: clamping area and described outer lug face are the metal surfaces of polishing in described.

13., it is characterized in that according to each described hair iron among the claim 1-5,7,8,11 and 12: the width of described at least one flank the convex outer surface width of described heating part 2% and 20% between.

14. hair iron according to claim 13 is characterized in that: the hardness of described at least one elastomeric ribs is between Shore A 30 and Shore D 50.

15. according to each described hair iron among the claim 1-5,7,8,11,12 and 14, it is characterized in that: described at least one elastomeric ribs is formed by silicon rubber.

16. hair iron according to claim 15 is characterized in that: each anchor clamps all has elongated heating part.

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