Back-open type hairdressing tool head with oval cross section

Abstract

The present invention generally relates to a tool head for a hairdressing tool having an elliptical cross-section wherein a portion of the back of the hairdressing tool head is open. The hairdressing tool head of the present invention can be used with heated and non-heated hairdressing tools and electrical appliances. Methods of using the disclosed hairdressing tool heads are also provided to reduce hair drying time, reduce dry hair, reduce hair damage occurring during hair style design and / or hair drying, increase time to maintain curled and / or warped hair ("styling" of curled or warped hair), and mitigate fatigue of a user during hair style design.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present invention claims the benefit of U.S. Provisional Application No. 63 / 392,712, filed on July 27, 2022. Technical Field

[0003] The present disclosure generally relates to a head for a hair tool, and more particularly to a hair tool head having an oval cross-section, wherein a portion of the back of the hair tool head is open. The hair tool head can be used with heated hair tools and non-heated hair tools, including but not limited to conventional hairbrushes, hot air combs, hair dryers, diffusers for hair dryers, curling irons, hair straighteners, and curling rollers. The present disclosure also relates to methods of using the disclosed hair tool head to shorten hair drying time, reduce frizzy hair, reduce hair damage during hair styling and / or hair drying, increase curl and / or flip time ("setting" of curls or flips), and reduce user fatigue during hair styling. Background Art

[0004] Traditionally, the heads of hair combs and other hair styling tools have a flat surface that interacts with the hair (such as the flat surface associated with a flat comb), or the heads are cylindrical. Generally speaking, the cylindrical shaped hair styling tool heads are right cylindrical, which have a normal circular cross-section with equal area. As used herein, "normal (in the normal direction)" means "in the direction orthogonal to the tangent at a specific point". Examples of hair styling tools with right cylindrical heads are traditional curling irons or curling rollers. Another example is a "round comb", which is a manual hair comb known in the art and is commonly used in the process of blow-drying hair. Traditionally, the "round comb" has a hollow cylindrical head, whose cross-section is circular (circular), and the cross-sectional diameter is the same throughout the entire length of the head. The head of a right cylindrical head is also used for a hot air comb. A hot air comb is a hair styling appliance that forces hot air to be blown out through the head of the comb.

[0005] In addition to the hairdressing tool head of a right circular cylinder, some hairdressing tools known in the art have heads in the shape of an elliptical cylinder, which have a normal elliptical cross-section with equal areas. As an example, an elliptical hot air comb and an elliptical (manual) hair comb can be found on the market.

[0006] A common use of a cylindrical brush head, whether round or oval, is to create curls or lifts during styling and / or drying. To achieve these effects, the user wraps a portion of the hair around the perimeter of the brush head by rotating the tool, usually at least one full turn (or several turns depending on the length of the hair). The user then releases the tension on the wrapped hair and removes the brush head from the hair. Since the hair is typically heated during this styling process, wrapping the hair around creates curls, and if wrapping is done primarily around the ends of the hair, lifts are created.

[0007] A cylindrical brush head typically has teeth that cover the entire surface of the brush head, i.e., the teeth surround the entire perimeter of the hair tool head. Using such a tool for styling hair places the teeth in constant contact with the hair. Hair tools with cylindrical brush heads often cause tangles to form during use, which can sometimes be a nuisance. Tangles can occur for a variety of reasons, including, but not limited to, hair being wrapped too tightly around the brush head, uneven tension on each layer of hair wrapped around the brush head, hair being wrapped around the brush head not being evenly distributed along the length of the brush head, and / or hair being caught in the teeth. Tangles that occur when using conventional cylindrical brushes can lead to discomfort and hair breakage during styling. More severe tangles can also affect the shape and "hold" of curls and frizz, and can also slow down the hair drying and styling process.

[0008] Fatigue caused by using conventional cylindrical brush heads is also a known problem. Wrapping hair onto the brush head requires considerable effort, especially when the hair is wrapped around the tool head multiple times. Removing the tool head from the entangled hair can also be stressful for the user because the hair must be pulled off the surface of the tool head and / or the teeth of the tool head.

[0009] There is therefore a need for a hair tool head that reduces the likelihood of tangling during the hair styling process. There is also a need for a hair tool head that speeds up drying time and / or dissipates heat into the hair more quickly during hair styling, either of which would reduce heat damage associated with the drying and hair styling processes. There is also a need for a hair tool head that reduces the fatigue associated with using a hair tool having a conventional cylindrical comb head. Summary of the invention

[0010] Generally speaking, embodiments of the present application relate to a hair tool head including a head body having an oval cross-section and a fully or partially open back surface.

[0011] In some non-limiting embodiments of the present invention, the head body is in the shape of a hollow elliptical cylinder, and the head body has a normal elliptical cross-section of equal area, wherein the elliptical cross-section has a major axis, and the major axis is longer than the minor axis of the ellipse. In this embodiment, the head body has a front surface, two side surfaces, and a back surface, and the distance from the bottom of the front surface of the head body to the top of the front surface of the head body can be defined as having a length l. In this embodiment, at least a portion of the back surface of the head body is missing or open. In certain exemplary embodiments, the missing portion of the back surface of the head body substantially extends the entire length l of the back surface of the head body. In other embodiments, the missing portion of the back surface of the head body is substantially the entire back surface of the head body.

[0012] In other non-limiting embodiments of the present invention, the head body is in the shape of a hollow concave elliptical cylinder. In such embodiments, the head body has a normal elliptical cross-section at the bottom edge and top edge of the front surface of the head body, and the normal elliptical cross-section is larger than the normal elliptical cross-section at the midpoint of the head body. In addition to the front surface, the head body in this embodiment also has two side surfaces and a back surface. In addition, the distance from the bottom of the front surface of the head body to the top of the front surface of the head body can be defined as a length l. At least a portion of the back surface of the head body is vacant or open. In certain exemplary embodiments, the vacant portion of the back surface of the head body substantially extends the entire length l of the back surface of the head body. In other embodiments, the vacant portion of the back surface of the head body is substantially the entire back surface of the head body.

[0013] In some embodiments of the present invention, the hairdressing tool head also includes one or more bristles, a carpet structure including hooks and / or loops, or a combination of the one or more bristles and the carpet structure. The bristles and / or the carpet structure are attached to at least a portion of a surface of the head body. In some embodiments, the bristles and / or the carpet structure are attached to at least a portion of the front surface of the head body and a portion of the two side surfaces of the head body. In other embodiments, the bristles and / or the carpet structure are attached to at least a portion of a side surface or two side surfaces of the head body, but are not attached to the front surface of the head body.

[0014] In some embodiments of the present invention, the hairdressing tool head is a component of a hairdressing tool. As a non-limiting example, the hairdressing tool may be a manual hair comb. In other examples, the hairdressing tool may be a hairdressing appliance, including but not limited to a hot air comb, a hair dryer, a drying hood for a hair dryer, a curling iron, a hair straightener, a curling roller, or a combination of the foregoing.

[0015] Embodiments of the present application also relate to a method of improving hair drying speed, wherein the method comprises using a hair styling tool having a hair styling tool head of the present invention on wet or damp hair. Other embodiments include methods of reducing user fatigue associated with hair styling and / or hair drying processes. Such methods include using a hair styling tool having a hair styling tool head of the present invention during hair styling and / or hair drying processes, wherein the reduced weight of the hair styling tool head helps to combat fatigue associated with the hair drying or hair styling process. Methods of reducing hair damage, reducing frizzy hair, and improving the "set" of curly and frizzy hair are also provided herein.

[0016] These and various features and advantages of the present invention will become apparent by referring to the following embodiments and examining the related drawings. The purpose of the summary of the invention provided here is to introduce some selected concepts of the invention in a simplified form, which will be further explained in the following embodiments. The summary of the invention herein is not intended to identify key or essential features of the claimed subject matter, nor is it intended to limit the scope of the claimed subject matter in any way. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The features, properties and advantages of the present disclosure will become more apparent from the detailed description set forth below in conjunction with the following drawings, in which similar reference numerals represent corresponding similar components of the present disclosure. However, it should be noted that such drawings only show certain aspects of the present disclosure and should not be considered to limit the scope of the present disclosure, and the present description may include other aspects with equivalent effects.

[0018] Figures 1 to 5 An example of a hairdressing tool head of the present invention is shown, which is in the form of an elliptical cylindrical head, and a part of the back of the head is open.

[0019] Figures 6 to 9 An example of a hairdressing tool head of the present invention is shown, which is in the form of a concave elliptical cylindrical head, and a part of the back of the head is open. DETAILED DESCRIPTION

[0020] The detailed description provided below, in combination with the accompanying drawings, is intended to describe various configurations, but is not intended to be the only configuration for implementing the concepts of the present invention. The following description includes various specific details, provided for the purpose of facilitating a full understanding of the various concepts. However, it is apparent to those skilled in the art that such concepts may still be implemented without these specific details.

[0021] Based on the teachings of the present invention, those skilled in the art should understand that the scope of the present disclosure is intended to include all aspects of the present disclosure, whether such aspects are implemented independently of any other aspects of the present disclosure, or can be implemented together with any other aspects of the present disclosure. For example, any number of the aspects described can be used to implement a device or practice a method. Furthermore, the scope of the present disclosure is intended to cover how to manufacture and / or utilize such devices and / or methods, including devices and methods that use other structures and functions that are not disclosed herein but are known in the art. It should be understood that any aspect of the present disclosure can be implemented by one or more elements of the claims.

[0022] As used herein, “exemplary” means “serving as an example, instance, or illustration.” Any aspect described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other aspects.

[0023] Although specific aspects are described herein, many variations and permutations of such aspects are within the scope of the present disclosure. Although some benefits and advantages of preferred aspects of the present disclosure are mentioned, the scope of the present disclosure is not limited to specific benefits, uses or purposes. On the contrary, aspects of the present disclosure are intended to be widely applicable to different technologies, structural configurations, fabrics, metals and materials, some of which have been presented by way of example in the drawings and descriptions herein. The detailed description and drawings are intended to illustrate and not to limit the present disclosure.

[0024] The present invention encompasses a hair tool head, wherein the hair tool head is configured as (i) an elliptical cylinder having an elliptical cross section of equal area, such as Figures 1 to 5 or (ii) a concave elliptical cylinder having an elliptical cross section at the top and bottom portions of the hairdressing tool head that is larger than an elliptical cross section at the middle portion of the hairdressing tool head, such as Figures 6 to 9 shown.

[0025] The hairdressing tool head of the present invention can be described as having a front portion and a back portion and two side portions, the front portion and the back portion corresponding to the long sides of the elliptical cross section of the elliptical cylinder, and the two side portions corresponding to the short sides of the elliptical cross section of the elliptical cylinder. In the present invention, at least a portion of the back portion of the hairdressing tool head is open.

[0026] As mentioned above, Figures 1 to 5An embodiment of the invention is shown in which the hair tool has a hair tool head 10 which is configured as an elliptical cylinder having an elliptical cross section of equal area.

[0027] Figure 1 1 shows a front view of the hair tool 100 and the hair tool head 10. Figure 1 As shown, the hairdressing tool has a handle 1, a hairdressing tool head 10 of the present invention and a cap 3. The length of the hairdressing tool head 10 is represented by l, i.e., the length from the bottom part of the hairdressing tool head (i.e., the position where the handle is attached) to the top part of the hairdressing tool head (i.e., the position where the cap can be attached). Figure 1 Two types of comb teeth 4 and 6 are also indicated.

[0028] exist Figure 1 In the embodiment, the cap 3 has been removed from the hairdressing tool head 10. In some embodiments, the cap 3 is detachably attached to the hairdressing tool head 10. In other embodiments, the cap 3 may be permanently attached to the hairdressing tool head 10. In other embodiments, the hairdressing tool may not have a cap attached to or attachable to the hairdressing tool head 10.

[0029] Figure 2 A side view of the hair tool 100 and the hair tool head 10 is shown. Figure 1 and Figure 2 The comparison highlights that given Figure 2 The depth d of the hair tool head 10 shown is less than Figure 1 The width w of the hairdressing tool head 10 is shown, so that the hairdressing tool head 10 is in the shape of an elliptical cylinder.

[0030] As described above, in the present invention, at least a portion of the back of the hairdressing tool head is open. Figure 3 , Figure 5 and Figure 8 ), the open portion of the hair tool head is represented in all black.

[0031] Figure 3 One possible arrangement of the back of a hair tool head 10 is shown. In this non-limiting example, the open portion 7 of the back of the hair tool head 10 extends the entire length l of the hair tool head 10. Figure 5 Another possible arrangement of the back of the hair tool head 10 is shown. In this non-limiting example, the open portion 9 of the back of the hair tool head 10 is smaller than the length l of the hair tool head 10.

[0032] Figure 3Further embodiments of the present invention are shown in which the width of the open portion 7 at the back of the hairdressing tool head 10 is relatively narrow compared to the overall width w of the hairdressing tool head. In other embodiments of the present invention, such as Figure 5 In the illustrated embodiment, the open portion 9 at the back of the hairdressing tool head 10 may be greater than half of the entire width w of the hairdressing tool head. In other non-limiting examples, the open portion may span most of the back of the hairdressing tool head. In other exemplary embodiments of the present invention, the open portion at the back of the hairdressing tool head may span the entire back of the hairdressing tool head.

[0033] Figure 3 An example is also shown in which the open portion 7 of the hairdressing tool head 10 of the present invention is centered along the width direction of the back of the tool head. However, this positioning is merely illustrative of the present invention. In other embodiments, the open portion of the hairdressing tool head may be positioned off-center, or completely to the right or left of the center of the back of the hairdressing tool head. Similarly, although in Figure 5 The open portion 9 of the back of the hair tool head 10 is shown centered both in the width and length directions of the back surface of the hair tool head, but the open portion of the hair tool head may be positioned anywhere on the back of the hair tool head.

[0034] There is no requirement that the open portion of the hair tool head be rectangular or square in shape; rather, the opening may be any shape, including but not limited to shapes such as a logo design.

[0035] Figure 4 Provided Figures 1 to 4 The cross-sectional view of the hairdressing tool head 10 is shown in FIG. The width of the hairdressing tool head 10, i.e., the distance from one side of the hairdressing tool head to the other side of the hairdressing tool head, is the length of the major axis of the elliptical cross section and is Figure 4 The depth of the hairdressing tool head 10, i.e. the distance from the front of the hairdressing tool head to the back of the hairdressing tool head, is the length of the minor axis of the elliptical cross section and is Figure 4 Indicated by d. The gap in the periphery of the oval cross-section corresponds to the open portion of the hair tool head.

[0036] Figures 6 to 9 An embodiment of the invention is shown in which the hair tool head is configured as a concave elliptical cylinder having a larger elliptical cross-section at the top and bottom of the hair tool head than at the middle of the hair tool head.

[0037] Figure 6 2 shows a front view of a hair tool 200 and a hair tool head 20. Figure 6As shown, the hairdressing tool has a handle 1, a hairdressing tool head 20 of the present invention, and an optional cap 3. The length of the hairdressing tool head 20 is represented by l, i.e., the length from the bottom part of the hairdressing tool head (i.e., the position where the handle is attached) to the top part of the hairdressing tool head (i.e., the position where the cap is attached). When viewed from the front, the hairdressing tool head 20 is concave, the widest part w of the hairdressing tool head 20 is located at the top part and the bottom part of the hairdressing tool head 20, and the narrowest part w- of the hairdressing tool head 20 is located in the middle of the top part and the bottom part.

[0038] Figure 7 A side view of a hair tool 200 and a hair tool head 20 is shown. Figure 6 and Figure 7 The concave oval shape of the hairdressing tool head 20 is highlighted. The depth d of the hairdressing tool head 20 (in Figure 7 denoted as d+ and d-) is smaller than the width of the hairdressing tool head 20 (in Figure 6 In the figure, w+ and w- are represented as w+ and w-).

[0039] Figure 8 One possible configuration of the back of the hair tool head 20 is shown. In this non-limiting example, the open portion 11 of the back of the hair tool head 20 extends the entire length l of the hair tool head 20 and is the same shape associated with the hair tool head 20. Other possible configurations of the open portion of the hair tool head 20 are also contemplated. As non-limiting examples, the open portion can extend less than the entire length l of the hair tool head 20, the opening can be located anywhere on the back of the hair tool head 20, and the opening can be of any shape.

[0040] Fig. 9 Provided Figures 6 to 8 The cross-sectional view of the hairdressing tool head 20 shown. For the sake of simplicity, Fig. 9 Two cross-sectional views are available. The first view is located at Fig. 9 , is a cross-sectional view of the top and bottom portions of the hair tool head 20, i.e., at these locations the elliptical cylinder is at its maximum width w+ and maximum depth d+. The second view is at Fig. 9 The lower right side of the figure is a cross-sectional view of the middle part of the hairdressing tool head 20, that is, the elliptical cylinder is at its minimum width w- and minimum depth d- at this position. The gap in the periphery of the elliptical cross section corresponds to the open part 11 of the hairdressing tool head 20.

[0041] As previously explained, Figures 1 to 9 What has been described is not the full scope of the invention.

[0042] For example, the hair tool heads 10 and 20 are depicted as having two types of comb teeth, Figure 1Marked as "4" and "6". However, the comb teeth are optional for the hair tool head of the present invention. In some embodiments, the hair tool head is smooth. In other embodiments, the hair tool head may have a permanent or temporary coating.

[0043] In a further embodiment, the hair tool head may have a hook and / or loop structure attached to part or all of the surface of the hair tool head. An example of the hook and / or loop structure is The use of such hook and loop structures (which are optional) is described in U.S. Patent Application Nos. 15 / 944,186 and 16 / 653,653. The related uses and benefits are also applicable to the present invention; adding hook and loop structures can, for example, help smooth the hair cuticle, increase hair shine and / or speed up drying time.

[0044] Where the hair tool head includes comb teeth as part thereof, such comb teeth may be of any shape or length, may be one type of comb teeth or a combination of any number of types of comb teeth, and may be arranged in any manner on the hair tool head. In certain embodiments, such comb teeth and hook and / or loop structures may be attached to the surface of the hair tool head at the same time.

[0045] In addition, although Figures 1 to 9 The hairdressing tool head of the present invention is shown to be used in combination with a manual hair comb, but the tool head of the present invention can be used for other hairdressing tools, including but not limited to hairdressing appliances that apply heat and / or hot air to the hair. As non-limiting examples, the hairdressing tool head of the present invention can be used as a hot air comb, a hair dryer, a hood of a hair dryer, a curling iron, a hair straightener, or a part of a curling roller.

[0046] In some non-limiting embodiments, the hair tool head of the present invention can be used to replace the standard tool head of a hot air comb. In one example of this embodiment, the open portion of the hair tool head is sufficient to allow hot air to pass through the hair. In another example, the hair tool head of the present invention can be added with additional vents to expand the open portion of the hair tool and allow the hot air generated by the hot air comb to be more widely distributed in the hair.

[0047] In other non-limiting embodiments, the hairdressing tool head of the present invention may be included as part of a hair dryer. As used in this patent application, the term "hair dryer" refers to a handheld electrical device that can blow ambient or hot air; such devices are generally composed of a barrel and a handle. As an example of a hair dryer embodiment of the present invention, the hairdressing tool head of the present invention can be used instead of, as a supplement to, or as a part of a barrel associated with such a conventional hair dryer. The hairdressing tool head of the present invention can also be used as or as a part of a hair drying hood, which can be attached to a hair dryer for use by a user in the process of drying and / or styling hair.

[0048] In further embodiments, the hairdressing tool head of the present invention can be used to completely replace the barrel or rod of a hair curler, as a supplementary component of such a barrel or rod, or as a part thereof. As used in this patent application, the term "hair curler" refers to a handheld electrical device having a heated rod or barrel. The hair curler produces curls by heating the hair wrapped around the rod or barrel.

[0049] The hairdressing tool head of the present invention can also replace one or a pair of clamps associated with a hair straightener. As used in this patent application, the term "hair straightener" refers to a handheld electrical device for styling hair by pressing the hair between two heated clamps or clamps.

[0050] The hairdressing tool head of the present invention can be made of any suitable material, including but not limited to plastic, foam plastic, rubber, silicone, metal or cloth. Such material appears on the front and sides of the hairdressing tool head. Since at least a portion of the back of the hairdressing tool head is open, such material does not appear in the open portion of the tool head. As previously pointed out, in some embodiments, most or almost all of the back of the tool head is open, which can reduce the amount of material required for the hairdressing tool head and has environmental advantages.

[0051] The hair tool head of the present invention has several advantages over conventional cylindrical hair tool heads. First, because a portion of the tool head is open at the back, the hair tool head is lighter. The lighter weight helps the user create curls and curls. When the hair is wrapped around the tool head of the present invention, the overall weight of the tool is also lighter. Therefore, the tool is less likely to pull and deform the shape of the curls and curls, and the curls or curls created by the tool head can last longer than conventional hair tool heads. The lighter weight also helps reduce fatigue during hair styling, which is more practical for people with arthritis, carpal tunnel syndrome and other injuries or diseases that may affect hand function.

[0052] In addition, the hair tool head of the present invention provides for better air flow by virtue of the open portion of the back of the hair tool head. This allows for a faster drying process. Similarly, when heat is applied as part of the hair styling process, the open portion of the hair tool head of the present invention allows the heat to penetrate the hair faster, allowing the hair to be styled more quickly than with conventional hair tool heads. The shorter drying and / or styling times provided by the present invention means less overall heat damage to the hair. Thus, the tool head of the present invention is more likely to maintain hair strength, reduce frizz associated with heat damage, and produce curls or wavy hair that are easier to style and last longer than when using a hair tool head that does not have an open back.

[0053] The hairdressing tool head of the present invention is also less likely to get tangled in the hair than conventional hairdressing tool heads. A portion of the hairdressing tool head is void, which means that there are fewer surfaces and / or comb teeth that the hair may get tangled in. Therefore, the tool head of the present invention is also less likely to cause damage to the hair and will reduce the pulling force required during the hair drying and / or hair styling process.

[0054] Due to its open back, the tool head of the present invention can be used to form a desired hairstyle with fewer movements. Unlike using a comb head with a continuous circumference or perimeter, the user of the hairdressing tool head of the present invention does not necessarily need to turn the tool a complete circle because the operating parts of the tool head are only at the front and sides thereof.

[0055] The elliptical cylindrical shape of the hairdressing tool head of the present invention also has advantages. Since the tool head has an elliptical cross section, the tool head will be able to contact the scalp more closely, so that the hair on the scalp can be pulled, heated and / or dried more easily. In addition, the different curvatures of the ellipse can increase the diversity of curls and curls, that is, tighter or fluffier curls and curls can be produced on the hair depending on the part of the hairdressing tool head used. When the hairdressing tool head is a concave elliptical cylinder, the user can also wrap the end hair around the middle part of the concave cylinder (i.e., its smallest circumference) to form tighter curls at the ends of the hair. Since the bottom part of the curl collapses fastest due to the weight of the hair, forming a tighter curl here will make the hair develop and straighten more slowly, thereby forming a curl that lasts longer than using a traditional hairdressing tool head. Therefore, a hairdressing tool with an elliptical cross section and an open portion on the back surface has a combined advantage for shaping, styling and drying curls and curls.

[0056] As described above, the brush head of the present invention can therefore be used as part of a method to achieve methods such as reducing drying time, reducing frizzy hair, reducing damage to hair during styling and / or drying, increasing the time hair retains curls and / or curls, and / or reducing user fatigue during the styling process.

[0057] As used herein, the term "at least one" of the listed items refers to any combination of these items, including a single item. For example, the term "at least one of a; b; or c" refers to a, b, c, ab, ac, bc, and abc.

[0058] In addition, the articles "a" and "an" as used herein are intended to include one or more items and can be used interchangeably with "one or more". In addition, the terms "set" and "group" as used herein are intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.) and can be used interchangeably with "one or more". If only one item is referred to, "only one" or similar terms are used. Furthermore, the terms "having", "having", "having", etc. are all used as open-ended terms. In addition, unless otherwise expressly stated, the term "based on" is intended to mean "based at least in part on".

[0059] Even if a particular combination of features of the invention is described in the claims or disclosed in the specification, such combination is not intended to limit the disclosure of the various aspects. In fact, many of the features may be combined in ways not expressly described in the claims or disclosed in this specification. Although each of the appended items listed below may only be directly attached to one claim, the disclosure of the various aspects includes the combination of each appended item with other claims within the entire claim set. Unless otherwise expressly stated, no element, act, or instruction used herein should be considered critical or essential.

[0060] It should be understood that the claims herein are not limited to the precise configuration and components shown in the above description and drawings. The arrangement, operation and details of the above methods and devices may be modified, changed and varied without departing from the scope of the claims herein.

Claims

1. A hairdressing tool head, comprising a head body in the shape of a hollow elliptical cylinder, wherein the hollow elliptical cylinder has a normal elliptical cross section with equal area, in, The elliptical cross-section has a major axis, the major axis being longer than a minor axis of the ellipse; Wherein, the head body has a front surface, two side surfaces, and a back surface; wherein the head body has a length l, the length l being defined as the distance from the bottom of the front surface of the head body to the top of the front surface of the head body; and Wherein, at least a portion of the back surface of the head body is hollow.

2. The hairdressing tool head according to claim 1, characterized in that: The void portion of the back surface of the head body extends substantially the entire length l of the back surface of the head body.

3. The hairdressing tool head according to claim 1, characterized in that: The missing portion of the back surface of the head body is substantially the entire back surface of the head body.

4. The hairdressing tool head according to claim 1, characterized in that: The hairdressing tool head also includes one or more comb teeth, a carpet structure including hooks and / or loops, or a combination of the one or more comb teeth and the carpet structure, wherein the comb teeth and / or the carpet structure are attached to at least a portion of one surface of the head body.

5. The hairdressing tool head according to claim 4, characterized in that: The comb teeth and / or the carpet structure are attached to at least a portion of the front surface of the head body and a portion of both side surfaces of the head body.

6. The hairdressing tool head according to claim 4, characterized in that: The comb teeth and / or the carpet structure are attached to at least a portion of one side surface or both side surfaces of the head body, but are not attached to the front surface of the head body.

7. A hairdressing tool head, comprising a head body in the shape of a hollow concave elliptical cylinder, in, The head body has a front surface, two side surfaces, and a back surface; wherein the head body has a length l, and the length l is defined as the distance from the bottom of the front surface of the head body to the top of the front surface of the head body; wherein the head body has a normal elliptical cross-section at a bottom edge and a top edge of the front surface of the head body, the elliptical cross-section being larger than a normal elliptical cross-section at a midpoint of the head body; and Wherein, at least a portion of the back surface of the head body is hollow.

8. The hairdressing tool head according to claim 7, characterized in that: The void portion of the back surface of the head body extends substantially the entire length l of the back surface of the head body.

9. The hairdressing tool head according to claim 7, characterized in that: The missing portion of the back surface of the head body is substantially the entire back surface of the head body.

10. The hairdressing tool head according to claim 7, characterized in that: The hairdressing tool head also includes one or more comb teeth, a carpet structure including hooks and / or loops, or a combination of the one or more comb teeth and the carpet structure, wherein the comb teeth and / or the carpet structure are attached to at least a portion of one surface of the head body.

11. The hairdressing tool head according to claim 10, characterized in that: The comb teeth and / or the carpet structure are attached to at least a portion of the front surface of the head body and a portion of both side surfaces of the head body.

12. The hairdressing tool head according to claim 10, characterized in that: The comb teeth and / or the carpet structure are attached to at least a portion of one side surface or both side surfaces of the head body, but are not attached to the front surface of the head body.

13. A hairdressing tool, comprising the hairdressing tool head according to claim 1, wherein: The hairdressing tool is a manual hair comb.

14. A hairdressing tool, comprising the hairdressing tool head according to claim 1, wherein: The hairdressing tool is a hot air comb, a hair dryer, a drying hood for a hair dryer, a hair curler, a hair straightener, a hair curling roller or a combination thereof.

15. A hairdressing tool, comprising the hairdressing tool head according to claim 7, wherein: The hairdressing tool is a manual hair comb.

16. A hairdressing tool, comprising the hairdressing tool head according to claim 7, wherein: The hairdressing tool is a hot air comb, a hair dryer, a drying hood for a hair dryer, a hair curler, a hair straightener, a hair curling roller or a combination thereof.

17. A method for increasing the drying speed of hair, the method comprising using any one of the hair styling tools according to claim 15 on wet or damp hair.

18. A method of improving the drying speed of hair, the method comprising using any one of the hair tools according to claim 17 on wet or damp hair.

19. A method of reducing user fatigue during hair drying or hair styling, the method comprising using any one of the hair styling tools according to claim 15 during the hair drying or hair styling.

20. A method of reducing user fatigue during hair drying or hair styling, the method comprising using any one of the hair tools according to claim 17 during the hair drying or hair styling.

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