Abstract:
The invention relates to a hairbrush comprising a head region and a handle region, the handle region comprising a stem, the stem having a deformable grip located thereon.

Description:
This application claims the benefit of U.S. Provisional Application No. 60/119,239, filed Feb. 9, 1999. 
    
    
     FIELD OF THE INVENTION 
     The invention relates to hairstyling tools. More specifically, the invention relates to hairstyling tools that are ergonomically designed for enhanced ease of use. 
     BACKGROUND OF THE INVENTION 
     A typical hairstyling tool, such as a comb or brush, is designed of hard plastic material or of wood. The hardness of the material is in many ways a benefit, because it withstands the pulling or tugging that is often required in brushing or combing hair. It is, however, hard on the hand of the user, and can make the process of hairstyling more arduous or difficult than it might otherwise be. The present invention now provides for a means for rendering the process of combing or brushing hair a more pleasant, less tiring process, with hairstyling tools the handles of which are specifically adapted to ease the stress on the hand of the user. 
     SUMMARY OF THE INVENTION 
     The present invention relates to hairstyling tools comprising a head containing one or more elements adapted for combing or brushing of hair, and a handle surrounded radially by a material deformable by a user&#39;s fingers or hand. In a preferred embodiment, the handle is surrounded by a gel- or putty-like material which responds to the pressure of the user&#39;s hand in such a way as to either temporarily or substantially permanently conform to the grip of the user. 
    
    
     BRIEF DESCRIPTION OF THE FIGURES 
     FIG. 1 shows a front elevational view of the brush of the invention, particularly showing the modified handle of the invention. 
     FIG. 2 shows a fragmented perspective view illustrating a portion of the head of the brush 
     FIG. 3 shows a fragmented perspective view illustrating a portion of the handle of the brush. 
     FIG. 4 shows a cross section through line A—A of FIG. 1, in an embodiment with grip composed of a single outer sleeve layer enclosing a viscous material. 
     FIG. 5 shows a cross section through line A—A of FIG. 1 in an embodiment with a grip composed of a sleeve with an outer layer and inner layer surrounding the viscous material. 
     FIG. 6 shows a cross section through line A—A of FIG. 1 in an embodiment with a grip composed of a sleeve with an outer layer and inner layer integrally formed with radially interconnecting webs defining chambers surrounding the viscous material, the webs containing vents permitting the passage of the viscous material from one chamber to another. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     A typical hairbrush is composed of a body that is divisible visibly into two opposite ends, one end being designated as the head, carrying the bristles or other brushing or combing members, and the opposite end being adapted into a handle shape to permit gripping and ease of movement of the brush by the hand of the user. The body is frequently composed of plastic or wood, but may also be composed of metal, or a combination of metal with one of the other materials. These materials are typically hard on the hand of the user. The brush of the invention possesses these typical brush elements, but also exhibits the further improvement of a modification of the handle which permits the user to utilize the brush over long periods of time without tiring or causing pain to the hands. In particular, a unique feature of the brush is the presence, over the handle portion of the brush, of a deformable grip that responds to the pressure of the user&#39;s hand and changes shape either temporarily or permanently, depending upon the composition of the grip. Grips of this type have been disclosed, for example, in U.S. Pat. No. 5,000,599, the contents of which are incorporated herein by reference. However, the grips have, to Applicant&#39;s knowledge, only been disclosed for use on writing implements, and not for hair brushes. 
     The grip of the invention is formed of a material with a substantial degree of elasticity, having a gel-like feel in the hand. The grip can be, for example, a deformable solid rubber or deformable solid plastic sleeve that is slipped over the handle of the brush. In a preferred embodiment, however, the grip comprises an outer sleeve of thin deformable rubber or plastic, surrounding an inner layer of an internal viscous deformable medium, all surrounding the stem of the hair brush handle. Examples of the internal deformable medium include putty-like vinyl elastomers and or silicone-based materials, such as the material referred to as Silly Putty (Dow Chemical). Such materials have a great deal of elasticity, but are slow to return to the original shape, so that the user&#39;s particular custom grip is retained for a short period of time, but eventually can be used by others, at which time a new custom grip will be temporarily imprinted. Alternatively, the grip may be an extrusion defining an outer resilient sleeve connecting to inner radially extending webs, that in turn communicate with a smaller diameter inner sleeve that fits about the stem of the brush. The cooperation of the sleeves with the webs forms a plurality of chambers, which receive and contain a flowable viscous substance, such as a silicone-based lubricant or sealant. The webs contain vents that permit movement between chambers, so that when pressure is applied, the shape of the grip alters by movement of the viscous material, but when pressure is relieved, the viscous material gradually returns to its original location, and the original shape of the grip eventually returns. As a third alternative, the deformable substance may be a room temperature curable substance that, after an initial period of adaptation to the user&#39;s custom grip, retains that custom conformation. Examples of useful materials for that purpose include room temperature curable silicone-based substances or the like that are initially activated by exposure to heat, air or other appropriate stimuli. In addition, the grip may be a sleeve forming a bladder, within which is contained the viscous material of choice. 
     An exemplary brush of the invention is shown in FIG.  1 . As shown therein, the brush  10  generally comprises a head region  12 , and a handle region  14 . The head region  12  further contains a plurality of bristles  16 . The handle region comprises an inner stem  18 , which is then surrounded generally by the outer deformable grip  20 . 
     The head region  12  and the inner stem  18  can be a unitary body formed of a single continuous material such as wood or plastic. In another embodiment, the head region  12  and the stem  18  are formed as separate entities, of the same or different materials, and are subsequently snapped or otherwise held together. In a preferred embodiment, and as shown in greater detail in FIG. 2, the head region  12  comprises a separate central twisted metal wire core  22  carrying an array of bristles  16  inserted along at least a portion of its length. Over the core is then. slipped a thin metal shell  24  having an inner surface  26  and an outer surface  28 , the shell carrying a plurality of perforations  40 . Properly configured, the length of the bristles  16  and the dimensions of the shell  24  are chosen so that the bristles extend through the perforations  40  of the shell  24 , reaching past the outer surface  28  of the shell  24 . 
     In the aforementioned embodiment, the shell  24  with its enclosed bristles  16  and wire core  22  are inserted into a stem  18 . In the embodiment disclosed in the following figures, the stem is hollow, but generally speaking, the stem can be formed of any material typically used for hairbrush handles, usually plastic or wood, and may be. either solid or hollow. The stem  18  is surrounded by a deformable grip  20 . At the point at which the upper end of the grip contacts the stem, an optional cuff  42  is added over the joining point, and further, an optional cap  44  is added to finish off the bottom of the stem. One possible arrangement of the components of the grip is shown in FIG.  3 . The outer portion of the grip is formed by a thin resilient sleeve  30 , encasing a viscous material  32 , directly surrounding the stem  18 . FIG. 4 shows a cross-section of the stem in this embodiment, wherein the sleeve  30  forms the outermost layer of the grip, surrounding the viscous material  32  and the innermost stem  18 , with a central cavity  36 . FIG. 5 illustrates an embodiment in which the grip  20  is formed by a sleeve  30  comprising an outer layer  46  separated from an inner layer  38  by the viscous material  32 , the inner layer  38  directly surrounding the stem  18 . FIG. 6 shows an alternative arrangement of the sleeve of FIG. 5, in which the inner layer  38  and the outer layer  46 , are part of a single extrusion, and are connected by radially directed webs  39 , which define individual chambers  47  in which the viscous material  32  resides. Each web is equipped with vents  48 , permitting movement of the viscous material from one chamber to another, in response to pressure on the sleeve  30 . 
     Although the figures provided herein illustrate a substantially cylindrical brush, it will be recognized that any configuration of brush can be fitted with the grip of the invention. For example, the body of the brush can be flat rather than cylindrical, and the shape of the head and handle can be varied, for example, the head can be square, rectangular, oval or any other convenient shape, as can the handle. It will also be recognized that although the present illustrations show a brush formed of separate head and handle elements, the brush of the invention can be formed as a single piece from the same material, with bristles directly attached to the head of the brush.