Patent Publication Number: US-2011073122-A1

Title: Wig base

Description:
TECHNICAL FIELD 
     The present invention relates to a wig base having a net ground fabric on which human hair or artificial hair is implanted. 
     BACKGROUND ART 
     Conventionally, some people wear wigs on a regular basis. People wear wigs for fashion in some cases. In many cases, however, people who are concerned about thinning hair wear wigs to disguise their own actual hair as apparently being augmented. Accordingly, wigs are required to take the shape of the actual hair on a person&#39;s head. 
     In particular, hairlines such as a forehead area, a temple area, a neckline, etc. tend to be noticeable when a user wears a wig. For example, a wig can be distorted, for example, by users combing the wig hair, and the rim portion, namely, the hairline of the wig, outwardly retroflexes, leading to a less stylish appearance. 
     Accordingly, a wig base is proposed which prevents an outward retroflexion by providing a core member made of a metal material curved to fit the shape of the head in the temple area and the neckline of the wig base in order to make the wig base fit the head closely (Patent Document 1). 
     However, the wig base according to Patent Document 1 has a problem wherein the core member made of the metal material provided in the temple area and the neckline of the wig base causes a user to feel uncomfortable when he or she wears the wig base. Especially in summer, ions of the metal material are leaked into the sweat, etc. of a user, which provokes a high possibility allergic reaction in the head of the user. 
     Additionally, the portion provided with the core member becomes thicker than the other portions, and this portion may be a hairline area. Therefore, an increase in thickness is not preferable because the appearance of this portion is noticeable. 
     [Patent Document 1] 
     Japanese Laid-open Patent Publication No. 2000-96327 
     DISCLOSURE OF INVENTION 
     An object of the present invention is to provide a wig base that does not use a core member made of a metal material and does not cause a perimeter part to retroflex, in light of the above described conventional situation. 
     A wig base according to the present invention is formed with a net ground fabric on which human hair or artificial hair is implanted, and is configured so that at least a portion of the outer perimeter part of the net ground fabric is formed to be curved inwardly. 
     The portion formed to be curved may be formed, for example, by sewing the outer perimeter part of the net ground fabric while edging-contracting the outer perimeter part against an attachment member attached along the back side of the outer perimeter part of the net ground fabric. Alternatively, the portion formed to be curved may be formed, for example, by folding back the outer perimeter part of the net ground fabric one or more times on the back side, and by sewing the folded portion of the back side on the perimeter part of the right side while edging-contracting the folded portion of the back side. 
     Additionally, the portion formed to be curved may have another net ground fabric that is joined to the net ground fabric and arranged doubled on the right side or the back side of the net ground fabric, and may be formed by sliding the net ground fabric arranged on the back side to be drawn to the back side, and by sliding the perimeter part of the net ground fabric arranged on the right side to be drawn into the back side according to the amount of the above sliding. 
     Furthermore, the portion formed to be curved may be, for example, a portion of the net ground fabric worn in the front, or may be, for example, the entire perimeter of the net ground fabric. 
     Still further, the net ground fabric may be configured so that, for example, a portion or the entirety of the outer perimeter part is formed to be wavy. 
     In this case, it is preferable to form, for example, the portion formed to be curved in the portion formed to be wavy. 
     According to the present invention, a wig base that does not use a core member made of a metal material, and does not cause a perimeter part to outwardly retroflexed can be provided. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a perspective view illustrating a configuration of an entire wig base according to a first embodiment; 
         FIG. 2  is a perspective view illustrating one example of a method for forming the wig base illustrated in  FIG. 1 ; 
         FIG. 3  is a cross-sectional view of the wig base illustrated in  FIG. 1 ; 
         FIG. 4  is a perspective view illustrating a configuration of an entire wig base according to a second embodiment; 
         FIGS. 5(   a ) and  5 ( b ) are perspective views respectively illustrating one example of a method for forming the wig base illustrated in  FIG. 4 ; 
         FIG. 6  is a perspective view of a configuration of an entire wig base according to a third embodiment; 
         FIG. 7  is a perspective view illustrating one example of a method for forming the wig base illustrated in  FIG. 6 ; 
         FIG. 8  is a perspective view illustrating a configuration of an entire wig base according to a fourth embodiment; 
         FIGS. 9(   a ) and  9 ( b ) are perspective views respectively illustrating one example of a method for forming the wig base illustrated in  FIG. 8 ; 
         FIG. 10(   a ) is a cross-sectional view of a wig base according to a sixth embodiment; 
         FIGS. 10(   b ) and  10 ( c ) are enlarged views of a portion A illustrated in  FIG. 10(   a ); 
         FIG. 11(   a ) is a side view of a wig base of a wig for the entire head which covers the sideburns area, as a seventh embodiment; 
         FIG. 11(   b ) is a top view thereof; and 
         FIG. 12  is a side view illustrating a wig base of a wig for the entire head which does not cover the sideburns area, as a modification example of the seventh embodiment. 
     
    
    
     BEST MODE OF CARRYING OUT THE INVENTION 
     Wig bases according to embodiments of the present invention are described below with reference to the drawings. 
     First Embodiment 
       FIG. 1  is a perspective view of a configuration of a wig base  10  according to a first embodiment. The wig base  10  is formed with a base net part  11  as a net ground fabric on which human hair and/or artificial hair are implanted, and a parting net part  13  (hereinafter, the base net part  11  and the parting net part  13  are collectively referred to simply as a net part  11 ). The wig base  10  illustrated in  FIG. 1  is in the state where human hair or artificial hair has not been implanted. 
     For the wig base  10 , a ring-shaped net outer perimeter part  12  is provided at the perimeter of the net part  11  formed to be circular. The net part  11  is curved to be rounded by the net outer perimeter part  12 , and takes the shape of a bowl that fits the head of a user. 
     In this embodiment, the net outer perimeter part  12  is formed by folding back the outer perimeter. The method for forming the net outer perimeter part  12  is not limited to this one. For example, a ring-shaped ribbon formed by cutting a resinous sheet having elasticity may be sewn or thermal-bonded to the perimeter of the net part  11 . 
     Additionally, a curved part  14  that curves inwardly is formed in at least a portion of the net outer perimeter part  12 . As a result, for example, if the curved part  14  is formed at the forehead area of the wig base  10 , it is difficult to outwardly retroflex the curved part  14  even when a user wears the wig base  10  and combs or performs another such action on human hair or artificial hair. 
       FIG. 2  is a perspective view illustrating one example of the method for forming the net outer perimeter part  12  to be curved inwardly. A suitable attachment member  15  is sewn on at least a portion of the net outer perimeter part  12  along the back side of the net outer perimeter part  12 . At this time, the net outer perimeter part  12  is sewn on the attachment member  15  while being edging-contracted. 
     Edging-contraction is for the purpose of overfeeding and contracting a long seam in a sewing direction against a shorter seam. Sewing while performing edging-contraction is called edging-contraction sewing. 
     As a result, the edging-contraction sewn portion forms an inward retroflexion, namely, an inward curve, and does not cause an outward retroflexion. That is, the wig base  10  is formed so that it is difficult to outwardly retroflex the curved part  14  even when a user wears the wig base  10  and combs or performs a similar such action on human hair or artificial hair. 
     Namely, the hairline portions, which are most noticeable when a user wears a wig, are made to continuously retroflex inwardly by being edging-contraction-sewn, and are caused to closely fit the forehead of the user. As a result, the state of wearing the wig becomes stable in appearance, and a wig that cosmetically improves the appearance of a user can be realized. 
     Additionally, if the parting net part  13  formed in a portion of the base net part  11  is a portion of the net outer perimeter part  12 , an inner retroflexion is formed to prevent an outward retroflexion with edging-contraction sewing in a similar manner. 
       FIG. 3  is a cross-sectional view of the wig base  10 . As described above, the inward retroflexion is formed in the forehead area of the wig base  10  with edging-contraction sewing against the attachment member not illustrated (this figure exhibits slight retroflexion for ease of explanation). By causing the perimeter part to inwardly retroflex, a feeling of closely fitting the perimeter part to the head is improved. 
     Second Embodiment 
       FIG. 4  is a perspective view illustrating a configuration of an entire wig base  20  according to a second embodiment. Also, the wig base  20  is formed with a base net part  21  on which human hair and artificial hair are implanted, and with a parting net part  23  (hereinafter, the base net part  21  and the parting net part  23  are collectively referred to simply as a net part  21 ). Also in  FIG. 4 , the wig base  20  is in the state where human hair or artificial hair has not been implanted. 
     For the wig base  20  according to this embodiment, at least a portion of a net outer perimeter part  22  is formed to be wavy. The wavy part  26  formed to be wavy is formed in a portion contacting the forehead of a user. By forming the wig base in this way, the hairline becomes less noticeable. 
     Additionally, the wavy part  26  is formed to be inwardly curved. As a result, even when a user wears the wig base  20  and runs a comb or the like through human hair or artificial hair in the case where the wavy part  26  is formed in the forehead area of the wig base  20 , it is difficult to outwardly retroflex the wavy part  26 . 
       FIG. 5(   a ) is a perspective view illustrating one example of the method for forming the wavy part  26  to be inwardly curved. For the wavy part  26 , an inward retroflexion is formed by attaching an attachment member  25 , one side of which is formed to be wavy, on the back side, and by edging-contraction sewing the wavy part  26  against the attachment member  25 . By being formed in this way, the wearing portion of the forehead area of a user in the wavy part  26  does not retroflex outwardly, thereby improving a wearing feeling of the perimeter part. The top side of the attachment member  25  may be formed to be wavy as illustrated in  FIG. 5(   b ). 
     Third Embodiment 
       FIG. 6  is a perspective view illustrating a configuration of an entire wig base  30  according to a third embodiment. The wig base  30  is formed with a base net part  31  on which human hair and artificial hair are implanted, and with a parting net part  33  (hereinafter, the base net part  31  and the parting net part  33  are collectively referred to simply as a net part  31 ). Also in  FIG. 6 , the wig base  30  is in the state where human hair or artificial hair has not been implanted. 
     As illustrated in  FIG. 6 , for the wig base  30  according to this embodiment, the entire perimeter of a net outer perimeter part  32  of the net part  31  is formed to be inwardly curved. By being formed in this way, it is difficult to outwardly retroflex the entire perimeter of the net outer perimeter part  32  in the wig base  30  according to this embodiment. 
       FIG. 7  is a perspective view illustrating one example of a method for forming the perimeter part  32  to be inwardly curved. As illustrated in  FIG. 7 , in the wig base  30  according to this embodiment, an inward retroflexion is formed at the entire perimeter of the net part  31  by attaching an attachment member  35  on the back side in a similar manner as in the above described embodiments, and by edging-contraction sewing the entire perimeter of the net part  31 . 
     By being formed in this way, the wig base  30  can always provide a comfortable wearing feeling when a user wears a wig made with the wig base  30 . This is because it is difficult to outwardly retroflex the entire perimeter. 
     Fourth Embodiment 
       FIG. 8  is a perspective view illustrating a configuration of an entire wig base  40  according to a fourth embodiment. Also, the wig base  40  is formed with a base net part  41  on which human hair and artificial hair are implanted, and with a parting net part  43  (hereinafter, the base net part  41  and the parting net part  43  are collectively referred to simply as a net part  41 ). Also in  FIG. 8 , the wig base  40  is in the state where human hair or artificial hair has not been implanted. 
     As illustrated in  FIG. 8 , the entire perimeter of the perimeter part  42  of the net part  41  is formed to be wavy. By being formed in this way, the hairline becomes less noticeable along the entire perimeter, so in this case, an inward retroflexion is formed at the outer perimeter part  42  of the net part  41  formed to be wavy by edging-contraction sewing the outer perimeter part  42  in a similar manner to the above described one. 
       FIG. 9(   a ) is a perspective view illustrating one example of the method for forming the outer perimeter part  42  to be inwardly curved. As illustrated in FIG.  9 ( a ), an inward retroflexion is formed at the entire perimeter of the perimeter part  42  of the net part  42  by attaching an attachment member  45  on the back side in a similar manner as in the above described embodiments, and by edging-contraction-sewing the entire perimeter of the outer perimeter part  42  of the net part  41 . 
     By being formed in this way, the wig base  40  can always provide a comfortable wearing feeling when a user wears a wig made with the wig base  40 . This is because it is difficult to outwardly retroflex the entire perimeter of the perimeter part  42 . Also, the top side of the attachment member  45  may be formed to be wavy as illustrated in  FIG. 9(   b ). 
     As described above, in all of the above described embodiments, an edging-contraction sewn portion that is sewn while edging-contracting the perimeter against the attachment member is formed at a main portion or along the entirety of the perimeter of the wig base, whereby a wig always fits the head closely without causing the wig to outwardly retroflex at the hairline, achieving a comfortable wearing state. 
     Additionally, only an attachment member made of, for example, a net ground fabric or the like for edging-contraction-sewing, and not a core member using a metal material or the like, is used at the perimeter part of the wig base. Accordingly, there is no possibility of provoking an allergy in the head due to ions leaked from the metal material into sweat. 
     Furthermore, a core member using a metal material or the like is not used at the perimeter part of the wig base, thereby eliminating the possibility of impairing the appearance due to the thickened and lifted perimeter. 
     In the meantime, in the above described first to fourth embodiments, the curved part is formed to inwardly curve along the perimeter part of the wig base by sewing the outer perimeter of the perimeter part of the net ground fabric against the attachment member attached along the back side of the outer perimeter of the perimeter part of the net ground fabric (base net part and parting net part) while edging-contracting the outer perimeter of the perimeter part of the net ground fabric. However, the forming of the curved part is not limited to this one. Other methods for forming the curved part are described below as fifth and sixth embodiments. 
     Fifth Embodiment 
     In the fifth embodiment, a curved part is formed by folding back the perimeter part of a net ground fabric once or more on the back side, and by sewing the folded portion of the back side on the perimeter part of the right side while edging-contracting the folded portion of the back side. The shape of the thus formed curved part can be applied unchanged to the above described first to fourth embodiments. 
     Sixth Embodiment 
       FIG. 10(   a ) is a cross-sectional view of a wig base  60  according to the sixth embodiment (This figure exhibits slight retroflexion for ease of explanation). By causing the perimeter to inwardly retroflex in this way, a feeling of closely fitting the perimeter to the head is improved. 
       FIGS. 10(   b ) and  10 ( c ) are enlarged views of an outer perimeter part A illustrated in  FIG. 10(   a ). As illustrated in  FIG. 10(   b ), this wig base  60  assumes a case where a net ground fabric  66  arranged doubled on the right side or the back side of a net part  61  is joined to the net part  61 . In  FIGS. 10(   b ) and  10 ( c ), the net ground fabric  66  is arranged on the back side (inner side) of the net part  61 . 
     As illustrated in  FIG. 10(   c ), an outer perimeter part  62  can be formed by sliding the net ground fabric  66  arranged on the back side to be drawn to the back side, and by sliding the outer perimeter part  62  of the net part  61  arranged on the right side to be drawn into the back side according to the amount of the above sliding. Also the shape of the thus formed outer perimeter part  62  can be applied unchanged to the above described first to fourth embodiments. 
     In the first to the fourth embodiments, the shape of the wig bases is represented as the shape of a reversed bowl, and as a wig base of a partial wig. However, the shape of the wig bases according to the above described first to sixth embodiments is not limited to this one. 
     Seventh Embodiment 
       FIG. 11(   a ) is a side view of a wig base of a wig for the entire head which covers the sideburns area, as the seventh embodiment.  FIG. 11(   b ) is a top view thereof.  FIGS. 11(   a ) and  11 ( b ) are diagrams illustrating only the outline of respective parts, and represent the state where human hair or artificial hair has not been implanted. 
     Also in  FIGS. 11(   a ) and  11 ( b ), a curved part implemented with edging-contraction sewing or other methods can be formed along a portion or the entirety of the perimeter part of the wig base as described in the first to the sixth embodiments. Alternatively, the hairline portion in the forehead area or the entire perimeter may be formed to be wavy, and the curved part may be formed therein. 
     (Modification Example of the Seventh Embodiment) 
       FIG. 12  is a side view of a wig base of a wig for the entire head which takes the shape of not covering the sideburns area, as a modification example of the seventh embodiment. A top view thereof is omitted. 
     Also in the wig base illustrated in  FIG. 12 , a curved part implemented with edging-contraction sewing or other methods can be formed along a portion or the entirety of the perimeter part of the wig base as described in the first to the sixth embodiments. Alternatively, a hairline portion in the forehead area or along the entire perimeter may be formed to be wavy, and the curved part may be formed therein.