Patent Publication Number: US-2023148688-A1

Title: Garment body for fan-equipped garment, and fan-equipped garment

Description:
TECHNICAL FIELD 
     The present invention relates to a garment body of a fan-equipped garment and the fan-equipped garment. 
     BACKGROUND 
     In recent years, a fan-equipped garment for cooling the body has been put to practical use and rapidly spread (for example, see Patent Document 1). 
     Owing to the effects of global warming in recent years, the air temperature is higher than the body surface temperature in many days. Therefore, a material of the fan-equipped garment is required to have high heat-insulating properties so as not to conduct the outside air temperature to the inside of the garment. The fan-equipped garment, which is often used outdoor, is also required to have a high sunlight blocking effect. 
     In response to such needs, a known fan-equipped garment is given a high sunlight blocking effect by sputtering titanium on the back side of the polyester fabric (for example, see Patent Document 2). 
     CITATION LIST 
     Patent Document 
     [Patent Document 1] WO2005-063065A1 
     [Patent Document 2] JP2005-154970A 
     SUMMARY 
     Technical Problem 
     However, the titanium sputtering is only applicable to the polyester woven fabric. The titanium sputtering also costs much, and its sunlight blocking effect does not last long because the thin film is worn away by being rubbed against the underwear with use. Further, when the outside air temperature is higher than the skin temperature, the titanium sputtering yields only a small heat-insulating effect of preventing the intrusion of heat of the outside air temperature. 
     An object of the present invention is to provide a garment body of a fan-equipped garment and the fan-equipped garment, the garment body having a high heat-insulation effect and being able to block the sunlight, thereby effectively functioning as the garment body of the fan-equipped garment. 
     Solution to Problem 
     To achieve the above object, according to claim  1  of the present invention, there is provided a garment body of a fan-equipped garment, including: a fan mount hole for mounting a fan; a front fabric made of a material having no breathability or having a certain level of breathability to be inflated with air introduced by the fan; and a heat insulation layer disposed on a back side of the front fabric and made of a material that holds air. 
     The invention disclosed in claim  2  is the garment body of the fan-equipped garment according to claim  1 , further including: a collar air-discharge part between a neck of a wearer and an end of a collar of the garment body, the collar air-discharge part discharging air that is introduced inside the garment body through the fan mount hole; and a collar air-discharge part adjuster that is configured to adjust an air discharge pressure at the collar air-discharge part. 
     The invention disclosed in claim  3  is the garment body of the fan-equipped garment according to claim  1  or claim  2 , wherein: the garment body has a long sleeve, and the garment body further includes: a sleeve air-discharge part between an arm of a wearer and an end of the sleeve, the sleeve air-discharge part discharging air that is introduced inside the garment body through the fan mount hole; and a sleeve air-discharge part adjuster that is configured to adjust an air discharge pressure at the sleeve air-discharge part. 
     The invention disclosed in claim  4  is the garment body of the fan-equipped garment according to claim  3 , wherein: the sleeve air-discharge part adjuster is a rib part and is freely attachable to and detachable from a part of the sleeve facing a wrist. 
     The invention disclosed in claim  5  is the garment body of the fan-equipped garment according to claim  3  or claim  4 , further including a sealing part that seals the sleeve air-discharge part. 
     The invention disclosed in claim  6  is the garment body of the fan-equipped garment according to any one of claim  3  to claim  5 , wherein the sleeve air-discharge part adjuster is configured to adjust a circumference length of the sleeve air-discharge part to 130% or greater of a minimum circumference length. 
     The invention disclosed in claim  7  is the garment body of the fan-equipped garment according to any one of claim  1  to claim  6 , further including a hood that is configured to cover a neck and a head of the wearer, wherein an air-discharge part adjuster for adjusting an air discharge pressure between the head and the hood is attachable to an inner surface of the hood. 
     The invention disclosed in claim  8  is the garment body of the fan-equipped garment according to any one of claim  1  to claim  7 , wherein a fan mount hole cover for covering the fan mount hole is housed inside the garment body. 
     The invention disclosed in claim  9  is the garment body of the fan-equipped garment according to any one of claim  1  to claim  8 , wherein: the garment body is a coat type configured to cover a trunk, arms, and part of legs of a wearer, and an air-leakage preventer is formed at a waist part inside the garment body. 
     The invention disclosed in claim  10  is the garment body of the fan-equipped garment according to any one of claim  1  to claim  9 , further including a back fabric disposed on a back side of the heat insulation layer. 
     The invention disclosed in claim  11  is the garment body of the fan-equipped garment according to claim  10 , wherein the front fabric is made of a material that has a higher sunlight reflectivity than the back fabric, and the back fabric is made of a material that has a higher sunlight absorbency than the front fabric and the heat insulation layer. 
     The invention disclosed in claim  12  is the garment body of the fan-equipped garment according to claim  10  or claim  11 , wherein a color of the back fabric is darker than a color of the front fabric. 
     The invention disclosed in claim  13  is the garment body of the fan-equipped garment according to any one of claim  10  to claim  12 , wherein the fan mount hole has a substantially rectangular shape. 
     The invention disclosed in claim  14  is the garment body of the fan-equipped garment according to any one of claim  10  to claim  13 , wherein: the front fabric, the heat insulation layer, and the back fabric are combined with stitches, and the fan mount hole is formed in an area surrounded by the stitches. 
     The invention disclosed in claim  15  is the garment body of the fan-equipped garment according to any one of claim  1  to claim  14 , an air introducer that introduces air inside the garment body of the fan-equipped garment, and a power source that supplies electric power to the air introducer are included. 
     Advantageous Effects of Invention 
     The present invention can provide a garment body of a fan-equipped garment and the fan-equipped garment, the garment body having a high heat-insulation effect and being able to block the sunlight and thereby effectively functioning as the garment body of the fan-equipped garment. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG.  1    is a front view of a fan-equipped garment in a first embodiment, wherein an opening-closing tool on the front part is open; 
         FIG.  2 A  is an enlarged view of the fan-equipped garment in the first embodiment; 
         FIG.  2 B  is a cross section along the IIB-IIB part in  FIG.  2 A ; 
         FIG.  3    is a schematic view of a fan mounted on the garment body of the fan-equipped garment; 
         FIG.  4 A  is an enlarged view of the fan-equipped garment in a second embodiment; 
         FIG.  4 B  is a cross section along the IVB-IVB part in  FIG.  4 A ; 
         FIG.  5 A  is an enlarged view of the fan-equipped garment in a modification of the second embodiment; 
         FIG.  5 B  is a cross section along the VB-VB part in  FIG.  5 A ; 
         FIG.  6    is a front view of a fan mount hole when viewed from the inside of the garment body, the fan mount hole being provided with a fan mount hole cover according to a third embodiment; 
         FIG.  7 A  is a front view of a collar air-discharge part of the fan-equipped garment provided with a collar air-discharge part adjuster in the third embodiment, wherein a collar adjuster belt is buttoned with an upper buttonhole; 
         FIG.  7 B  is a front view of the collar air-discharge part of the fan-equipped garment provided with the collar air-discharge part adjuster in the third embodiment, wherein the collar adjuster belt is buttoned with a lower buttonhole; 
         FIG.  8 A  is a front view of a sleeve of the fan-equipped garment in the third embodiment in which a sleeve air-discharge part adjuster is formed at the sleeve edge; 
         FIG.  8 B  is a front view of the sleeve of the fan-equipped garment in the third embodiment in which the sleeve air-discharge part adjuster is formed near the sleeve edge; 
         FIG.  8 C  is a front view of an example of the sleeve of the fan-equipped garment in the third embodiment in which the sleeve air-discharge part adjuster is provided; 
         FIG.  8 D  is a front view of an example of the sleeve of the fan-equipped garment in the third embodiment in which the sleeve air-discharge part adjuster is provided; 
         FIG.  8 E  is a front view of an example of the sleeve of the fan-equipped garment in the third embodiment in which the sleeve air-discharge part adjuster is provided; 
         FIG.  9    is a sectional side view of the fan-equipped garment in which an air-discharge part adjuster is attached to a hood; 
         FIG.  10 A  is a perspective front view of an air-discharge part adjuster to be attached to the shoulder part in the third embodiment; 
         FIG.  10 B  is a sectional side view of the fan-equipped garment to which the air-discharge part adjuster shown in  FIG.  10 A  is attached; 
         FIG.  11 A  is a front view of an example of the fan-equipped garment in the fourth embodiment in which an air-leakage preventer is formed; 
         FIG.  11 B  is a front view of an example of the fan-equipped garment in the fourth embodiment in which the air-leakage preventer is formed; and 
         FIG.  11 C  is a front view of an example of the fan-equipped garment in the fourth embodiment in which the air-leakage preventer is formed. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     First Embodiment 
     Hereinafter, a first embodiment of the garment body of the fan-equipped garment according to the present invention is described in detail with reference to  FIG.  1    to  FIG.  3   . The embodiments described below are provided with various limitations technically preferable for carrying out the present invention. However, the scope of the present invention is not limited to the embodiments below or illustrated examples. 
     In the description below, the front side of the wearer is front; the back side of the wearer is back; the upper side of the wearer is up; the lower side of the wearer is down; the right-hand side of the wearer is right; and the left-hand side of the wearer is left, based on the state of the fan-equipped garment  100  worn by a wearer. 
     [Fan-Equipped Garment] 
     As shown in  FIG.  1   , the fan-equipped garment  100  includes a garment body  110 ; fans  140  that introduce air inside the garment body  110 ; a power source  120  that supplies the fans  140  with electric power; and a connection cable  130  that connects the power source  120  to the fans  140 . The fan-equipped garment  100  introduces air into the garment body  110  with the fans  140 , flows the introduced air along the body surface of the wearer or along the surface of the underwear, so that the sweat drained from the body evaporates. The body is cooled by the evaporation heat generated in evaporation of the sweat. 
     [Garment Body] 
     A blouson-type garment body  110  is described as an example. As shown in  FIG.  1   , the garment body  110  is formed to cover at least the trunk of the wearer and is formed with a sheet member S having no breathability or having a certain level of breathability that allows the garment body  110  to be inflated with air introduced by the fans  140 . Although the garment body  110  in  FIG.  1    is a blouson type that covers the trunk and arms of the wearer, the shape of the garment body  110  is not limited to this. For example, the garment body  110  can be formed as overalls that are an upper garment and a lower garment connected as one-piece; a vest that covers only the trunk; and a coat that covers the trunk, the arms, and part of the legs of the wearer. The garment body  110  of the present invention is therefore not limited to a blouson type. 
     The garment body  110  refers to part of the fan-equipped garment  100  except electric components, such as the power source  120 , the connection cable  130 , and the fans  140 . The garment body  110  is the part of the fan-equipped garment  100  that serves as a garment. The garment cloth is part of the sheet member S constituting the garment, the part covering the body of the wearer and determining the shape of the garment. The garment cloth does not include auxiliary parts that do not affect the shape of the garment (e.g., the sheet member S used for a pocket). 
     The surface that faces the wearer when the wearer wears the garment body  110  is called the back surface, and the opposite surface that faces the external space when the wearer wears the garment body  110  is called the front surface. The back surface of the garment cloth and a part closer to the wearer than the back surface of the garment cloth when the wearer wears the garment body  110  is called the back surface side of the garment body  110 . The front surface of the garment cloth and a part closer to the external space than the front surface of the garment cloth when the wearer wears the garment body  110  is called the front surface side of the garment body  110 . 
     The garment body  110  includes an opening-closing tool  111 , an air-leakage preventer  112 , fan mount holes  113 , air-discharge parts  114 , a power source holder  115 , and a cable holder  116 . 
       FIG.  2 A  is an enlarged planar view of the fan-equipped garment  100  in the first embodiment.  FIG.  2 B  is a cross section along the IIB-IIB in  FIG.  2 A . As shown in  FIG.  2 B , the fan-equipped garment  100  in the first embodiment is formed with the sheet member S that includes a front fabric  2  and a heat insulation layer  3 . 
     (Front Fabric) 
     The front fabric  2  constitutes the front surface side of the fan-equipped garment  100 . The front fabric  2  is mainly formed of a finely woven fabric. 
     The front fabric  2  is made of polyester, polyester and cotton blended fabric, or nylon, for example, but is not limited to them as long as the front fabric  2  has low air permeability. The sunlight blocking factor can also be taken into account. 
     (Heat Insulation Layer) 
     The heat insulation layer  3  is a fabric fixed to the back surface side of the front fabric  2 . The heat insulation layer  3  is made of a material that can keep air inside. 
     In this embodiment, it is preferable that fleece made of polyethylene terephthalate be used. As described later, when the heat insulation layer  3  is the intermediate layer of a three-layer structure, the following may be used as desired: feathers (e.g., down); synthetic fiber cotton or sponge made of nylon, polyester, or the like; and natural cotton, for example. 
     When the heat insulation layer  3  is made of sponge, it is preferable that the sponge have the expansion ratio equal to or greater than 80% and the thickness equal to or greater than 5 millimeters. When the heat insulation layer  3  is made of down, it is preferable that the down hold air equal to or greater than 3 liters/m2. 
     Practical Examples 
     Hereinafter, the evaluation result of preferable structures for heat insulating effects is explained on the basis of practical examples of the present invention and comparative examples. Although the present invention is described in detail below on the basis of the practical examples, the present invention is not limited to the examples. 
     [Structures of Practical Examples and Comparative Examples] 
     The following were prepared: practical examples 1 to 4 as samples having the heat insulation layer  3 ; a comparative example 1 without a sample (direct irradiation); and a comparative example 2 as a sample that consists of only a fabric and that does not have the heat insulation layer  3 . Each of the samples of the practical examples 1 to 4 is a square-floor-cushion-like bag body formed of 1000 polyester fabrics between which the heat insulation layer  3  is disposed. Each of the fabrics forming the bag body is approximately 0.1 millimeter thick and approximately 400 millimeters on a side. The heat insulation layer  3  disposed inside the practical examples 1, 2 is down, and the heat insulation layer  3  disposed inside the practical examples 3 and 4 is padding, as described below. In order to compare down and padding, the thicknesses of the heat insulation layers  3  made of down and padding in the bag bodies were made substantially equal between the practical examples 1 and 3, and between the practical examples 2 and 4, respectively. 
     Practical Example 1 
     To form the heat insulation layer  3 , the down consisting of 80% down and 20% feathers was disposed in the bag body with  670  fill power such that the thickness of the heat insulation layer  3  is approximately 13.0 millimeters. 
     Practical Example 2 
     To form the heat insulation layer  3 , the down consisting of 80% down and 20% feathers was disposed in the bag body with  670  fill power such that the thickness of the heat insulation layer  3  is approximately 33.5 millimeters. 
     Practical Example 3 
     To form the heat insulation layer  3 , two sheets of padding made of 100% polyester and 6.5 millimeters thick (KNF-350 manufactured by Japan Vilene Company, Ltd.) were layered and disposed in the bag body. In this practical example 3, the thickness of the polyester padding as the heat insulation layer  3  is approximately 13.0 millimeters. 
     Practical Example 4 
     To form the heat insulation layer  3 , a sheet of padding made of 100% polyester and 16.5 millimeters thick (KNF-950 manufactured by Japan Vilene Company, Ltd.), a sheet of padding made of 100% polyester and 10.5 millimeters thick (KNF-650 manufactured by Japan Vilene Company, Ltd.), and a sheet of padding made of 100% polyester and 6.5 millimeters thick (KNF-350 manufactured by Japan Vilene Company, Ltd.) were layered and disposed in the bag body. In this practical example 4, the thickness of the polyester padding as the heat insulation layer  3  is approximately 33.5 millimeters. 
     Comparative Example 1 
     In this example, an artificial solar lighting directly irradiated a sensor without a sample inbetween (direct irradiation). 
     Comparative Example 2 
     Only the fabric that constitutes the bag body in the practical examples 1 to 4 (100% polyester square fabric approximately 400 millimeters on a side and approximately 0.1 millimeter thick) was prepared as the sample. 
     [Experimentation Details] 
     An artificial solar lighting (XC-100E manufactured by SERIC LTD.) was placed at a position one meter away from the position where the samples of the practical examples and the comparative examples were set. Below each of the samples, a piece of expanded polystyrene was placed at the side opposite the setting position of the artificial solar lighting with the sample inbetween. Only the surface facing the artificial solar lighting of the expanded polystyrene was open, and the open surface was covered with the sample, so that the piece of expanded polystyrene formed a space having a predetermined volume (approximately 5,600 cm 3  (length: approximately 25 centimeters, width: approximately 16 centimeters, height: approximately 14 centimeters)). Thus, the state inside the garment body  110  being worn was simulated. Temperature changes in such structures were measured when the samples were irradiated for 10 minutes, 20 minutes, and 30 minutes by the artificial solar lighting. The sensors were covered with black cloths in order to easily grasp the temperature changes. 
     TABLE I shows the measurement results in the above experimentation. 
     
       
         
           
               
               
               
               
               
               
             
               
                   
                 TABLE I 
               
               
                   
                   
               
               
                   
                   
                   
                   
                   
                 TEMPERATURE 
               
               
                   
                   
                   
                   
                   
                 DIFFERENCE 
               
               
                   
                   
                   
                   
                   
                 BETWEEN 
               
               
                   
                   
                 10 min. 
                 20 min. 
                 30 min. 
                 START AND 
               
               
                   
                 START 
                 LATER 
                 LATER 
                 LATER 
                 30 min. LATER 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 PRACTICAL EXAMPLE 1 
                 26.6° C. 
                 27.0° C. 
                 27.5° C. 
                 27.7° C. 
                 +1.1° C. 
               
               
                 (DOWN, 13.0 mm) 
               
               
                 PRACTICAL EXAMPLE 2 
                 26.3° C. 
                 26.4° C. 
                 26.8° C. 
                 27.1° C. 
                 +0.8° C. 
               
               
                 (DOWN, 33.5 mm) 
               
               
                 PRACTICAL EXAMPLE 3 
                 26.9° C. 
                 27.8° C. 
                 28.5° C. 
                 28.7° C. 
                 +1.8° C. 
               
               
                 (PADDING, 13.0 mm) 
               
               
                 PRACTICAL EXAMPLE 4 
                 27.5° C. 
                 27.7° C. 
                 28.1° C. 
                 28.3° C. 
                 +0.8° C. 
               
               
                 (PADDING, 33.5 mm) 
               
               
                 COMPARATIVE EXAMPLE 1 
                 23.0° C. 
                 27.5° C. 
                 28.4° C. 
                 28.7° C. 
                 +5.7° C. 
               
               
                 (DIRECT IRRADIATION) 
               
               
                 COMPARATIVE EXAMPLE 2 
                 23.1° C. 
                 25.1° C. 
                 26.2° C. 
                 26.7° C. 
                 +3.6° C. 
               
               
                 (FABRIC) 
               
               
                   
               
            
           
         
       
     
     (Evaluation) 
     The comparison between the practical examples 1 to 4 and the comparative examples 1, 2 shows that the heat insulation layer  3  yields remarkable heat insulating effects against the sunlight irradiation. 
     Further, the comparison between the practical examples 1 and 2 and the comparison between the practical examples 3 and 4 show that the thicker heat insulation layer  3  yields greater heat insulating effects. 
     Further, the comparison between the practical examples 1 and 3 shows that, as the heat insulation layer  3 , the down yields greater heat insulating effects than the padding but that the padding also yields sufficient heat insulating effects. 
     (Opening-Closing Tool) 
     Referring back to  FIG.  1   , the opening-closing tool  111  allows the garment body  110  to be front-open and allows the wearer to open and close the front part of the garment body  110  in wearing the fan-equipped garment  100 . The specific configuration of the opening-closing tool  111  is determined as desired. For example, a normal linear fastener is used. The opening-closing tool  111  is not limited to a linear fastener as long as the opening-closing tool  111  can freely connect and disconnect the divided front parts of the garment body  110 . However, in view of preventing air leakage, a linear fastener is preferable. 
     (Air-Leakage Preventer) 
     The air-leakage preventer  112  is provided at the lower part of the garment body  110 , as shown in  FIG.  1   . The air-leakage preventer  112  prevents air in the space between the garment body  110  and the wearer&#39;s body from leaking outside through the hem of the garment body  110 . The specific configuration of the air-leakage preventer  112  may be determined as desired as long as the air-leakage preventer  112  can prevent air leakage from the lower part of the garment body  110  to the outside. For example, the air-leakage preventer  112  is formed with an elastic material, such as a rubber cord, and provided at the position corresponding to the abdomen of the wearer wearing the garment body  110  around the wearer&#39;s body. 
     When the wearer wears the fan-equipped garment  100 , the air-leakage preventer  112  narrows the part of the garment body  110  corresponding to the abdomen of the wearer and closely fits to the wearer&#39;s body. Accordingly, the air-leakage preventer  112  prevents the air introduced by the fans  140  from flowing from the space between the garment body  110  and the upper half of the wearer&#39;s body to the space between the garment body  110  and the lower half of the wearer&#39;s body. Thus, the air-leakage preventer  112  can increase the amount of air discharged from the air-discharge parts  114  and increase the cooling effect for the upper half of the wearer&#39;s body. 
     The air-leakage preventer  112  is not an essential component. For example, when the garment body  110  is the overall type and does not include the air-leakage preventer  112 , the air introduced by the fans  140  may also flow from the space between the garment body  110  and the upper half of the wearer&#39;s body to the space between the garment body  110  and the lower half of the wearer&#39;s body and may be discharged through the hem. In this case, the entire body of the wearer can be thoroughly cooled. 
     Thus, the air-leakage preventer  112  may not be provided depending on the shape of the garment body  110 . 
     (Fan Mount Holes) 
     The fan mount holes  113  are provided on the sheet member S constituting the garment body  110  at positions corresponding to the left and right of the waist of the wearer, as shown in  FIG.  1   . When the wearer wears the fan-equipped garment  100 , the fan mount holes  113  connect the space between the garment body  110  and the wearer&#39;s body to the outside. The shape of the fan mount holes  113  conforms to the external shape of the fans  140 . 
     The fans  140  are mounted by being inserted in the fan mount holes  113 , so that the fans  140  can introduce outside air to the inside of the garment body  110  through the fan mount holes  113 . 
     In view of effectively cooling the wearer wearing the fan-equipped garment  100 , it is preferable that the fan mount holes  113  be formed at the above-described positions. However, the positions of the fan mount holes  113  are not limited to the above. For example, the fan mount holes  113  may be formed at positions corresponding to the positions below the armpits of the wearer. 
     The number of fan mount holes  113  formed is not limited to two. There may be more than or less than two fan mount holes  113  and the fans  140  of the corresponding number. 
     (Air-Discharge Part) 
     The air-discharge parts  114  are the openings for discharging the air that has been introduced by the fans  140  through the fan mount holes  113  and flown along the wearer&#39;s body or the underwear, as shown in  FIG.  1   . For example, the air-discharge parts  114  are: a collar air-discharge part  1141  between the neck of the wearer and the collar edge of the garment body  110 ; and sleeve air-discharge parts  1142  each of which is between the wearer&#39;s arm and the sleeve edge of the garment body  110 . 
     The positions where the air-discharge parts  114  are formed are not limited to the collar and sleeves as long as the air-discharge parts  114  can discharge the air that has been introduced into the garment body  110  by the fans  140  and that has flown along the wear&#39;s body or the underwear. 
     (Power Source) 
     The power source  120  supplies electric power to the fans  140 , which are described below. The power source  120  is attached to the garment body  110  or near the garment body  110  (e.g., the belt of trousers) by the power source holder  115 . The power source  120  includes a built-in lithium-ion battery pack provided with a security circuit, for example, and a not-illustrated second connecting terminal to be connected to the fans  140  via the connection cable  130 , which is described later. 
     [Connection Cable] 
     The connection cable  130  connects the power source  120  and the fans  140 . The connection cable  130  is held on the inner surface of the garment body  110  by the cable holder  116 . Via the connection cable  130 , the power source  120  supplies the fans  140  with electric power necessary for operating the fans  140 . 
     The detailed configurations of the power source holder  115 , the cable holder  116 , the power source  120 , and the connection cable  130  are determined as desired. 
     [Fans] 
     The fans  140  are mounted on the garment body  110  by being inserted in the fan mount holes  113 . The fans  140  are air introducers that are substantially flat and substantially round in a planar view and that introduces air into the space between the garment body  110  and the wearer&#39;s body through the fan mount holes  113 , as shown in  FIG.  1   . 
     The fans  140  may be configured as desired as long as the fans  140  can be mounted on the garment body  110  by being inserted in the fan mount holes  113  and can introduce air inside the garment body  110 . For example, each fan  140  has a fan body  141  and a ring-shaped mount ring  142  that fixes the fan body  141  to the garment body  110 , as shown in  FIG.  3   . 
     [Fan Body] 
     The fan body  141  houses a propeller (not illustrated) and a motor (not illustrated) inside. As shown in  FIG.  3   , the fan body  141  includes: an air introducing part  1411  that constitutes the air introducing side when the fan  140  is in operation; an air sending part  1412  that constitutes the air sending side when the fan  140  is in operation; a tubular part  1413  that is a tubular connecting part between the air introducing part  1411  and the air sending part  1412 ; and a flange  1414  that protrudes from the air introducing part  1411 -side end of the tubular part  1413  in a direction substantially perpendicular to the lateral surface of the tubular part  1413 . The air introducing part  1411  has an opening that connects through to the air sending part  1412  and that forms an air channel to the inside of the fan-equipped garment  100 . The tubular part  1413  is formed to be round, and the outer shape of the cross section of the tubular part  1413  is round when the tubular part  1413  is cut along a plane perpendicular to its central axis. The outer shape of the air introducing part  1411  is formed to be approximately equal to the diameter of the fan mount hole  113 . 
     The outer shape of the fan  140  is not limited to a round shape but may be other shapes, such as a rectangular shape, for example. 
     The fan body  141  includes a first connection terminal  1415  at a predetermined position on the air sending part  1412 -side. The first connection terminal  1415  is connected to the connection cable  130 . The detailed configuration of the first connection terminal  1415  may be determined as desired as long as it is connectable to the connection cable  130  to receive electric power supplied by the power source  120 . 
     (Mount Ring) 
     The mount ring  142  is a ring-shaped member for mounting the fan body  141  to the fan mount hole  113 . The inner diameter of the mount ring  142  is equal to or slightly greater than the outer shape of the tubular part  1413 . The mount ring  142  can be attached to the fan  140  by inserting the tubular part  1413  to the mount ring  142 . 
     On the outer surface of the tubular part  1413  and the inner surface of the mount ring  142 , engaging means (not illustrated) are formed. For example, a protrusion is formed on the inner surface side of the mount ring  142 , and a recess that engages with the protrusion is formed on the outer surface side of the tubular part  1413 . 
     To mount each fan  140  to the garment body  110 , the air sending part  1412 -side of the fan  140  is inserted from the outer surface of the garment body  110  into the fan mount hole  113  such that the flange  1414  is in contact with the portion around the fan mount hole  113  of the garment body  110 , as shown in  FIG.  3   . Next, the mount ring  142  is fitted to the outside of the tubular part  1413  from the inside of the garment body  110 . Thus, the flange  1414  and the mount ring  142  tuck in the portion around the fan mount hole  113  and the portion around the hole of an opening-hole stiffener of the sheet member S, which constitutes the garment body  110 . In this state, the mount ring  142  is fixed to the fan body  141  by the engaging means. 
     Thus, the fan  140  is inserted in the fan mount hole  113  and fixed to the garment body  110 . The method for mounting the fan  140  on the fan mount hole  113  is not limited to the above, and various known methods may be selected, such as the method of screwing a screw part formed on the tubular part  1413  of the fan  140  into the mount ring  142 . 
     Advantageous Effects of Embodiment 
     According to known garments including a garment treated with titanium sputtering, the sunlight passes through the fabric and directly hits the skin or the underwear, thereby increasing the skin temperature. The fan-equipped garment  100  in this embodiment is formed of the sheet member S that includes: the front fabric  2  that has a high sunlight reflectivity or a high sunlight absorbency; and the heat insulation layer  3  that holds air, as shown in  FIG.  2 B . According to the fan-equipped garment  100 , the front fabric  2  reflects or absorbs the sunlight, and air flows between the heat insulation layer  3  and the skin or the underwear. Thus, the heat is restrained from reaching the skin or the underwear. Even when the outside air temperature is higher than the skin temperature, the heat insulation layer  3  blocks the heat and restrains increase of the skin temperature. Thus, the fan-equipped garment  100  functions effectively. 
     The front fabric  2  of the fan-equipped garment  100  in this embodiment may be a mixed fabric of cotton and polyester. The heat insulation layer  3  is not worn away by abrasion with the underwear. Further, the fan-equipped garment  100  can be produced relatively inexpensively by providing only the heat insulation layer  3  to a conventional garment. 
     Second Embodiment 
     The fan-equipped garment  100 A according to the second embodiment is described with reference to  FIG.  4 A  to  FIG.  5 B . The parts that are the same as the parts of the fan-equipped garment  100  in the first embodiment are given the same reference numerals, and the description thereof is omitted. 
       FIG.  4 A  is an enlarged front view of the fan-equipped garment  100 A in the second embodiment.  FIG.  4 B  is a cross section along the IVB-IVB in  FIG.  4 A . 
     As shown in  FIG.  4 B , the fan-equipped garment  100 A in the second embodiment has a three-layer structure formed of the sheet member S including the front fabric  2 , the heat insulation layer  3 , and a back fabric  4  that is made of a material having a low sweat absorbency. 
     (Back Fabric) 
     The back fabric  4  constitutes the back surface side of the heat insulation layer  3  of the garment body  110 . Preferably, the back fabric  4  is made of polyester that has a low sweat absorbency and a high sunlight absorbency. However, the back fabric  4  is not limited to polyester. A material that is used as a back fabric of a normal garment may be used as the back fabric  4 , as desired. 
     When the sheet member S and the garment body  110  has the above-described three layer structure and the heat insulation layer  3  consists of down, the heat insulation layer  3  as the intermediate layer needs to be prevented from moving. Preferably, as shown in  FIG.  5 A  and  FIG.  5 B , the layers are sewn together with stitches in the crosswise direction or crosswise and lengthwise directions at an average interval of 10 centimeters, for example, such that the layers are combined, instead of simply sewn the layers on each other as shown in  FIG.  4 A  and  FIG.  4 B . Along with that, preferably, the fan mount holes  113 A and the fans  140 A to be mounted on the fan-equipped garment  100 A have a substantially rectangular shape. 
     Advantageous Effects of Embodiment 
     The fan-equipped garment  100 A according to the second embodiment is a three-layer structure garment formed of the sheet member S that includes the front fabric  2 , the heat insulation layer  3 , and the back fabric  4  in the order from the front surface. Therefore, the sunlight that is not blocked by the front fabric  2  as the outermost layer is reflected or absorbed by the back fabric  4  as the inner layer. 
     Thus, the fan-equipped garment  100 A can function effectively by further restraining the increase of skin temperature. 
     Third Embodiment 
     The fan-equipped garment  100 B according to the third embodiment is described with reference to  FIG.  6    to  FIG.  10 B . The parts that are the same as the parts of the fan-equipped garment  100  in the first embodiment are given the same reference numerals, and the description thereof is omitted. 
     The fan-equipped garment  100 B according to the third embodiment includes fan mount hole covers  1131  and an air-discharge part adjuster(s)  1143 . 
     [Fan Mount Hole Cover] 
     The fan mount hole covers  1131  cover the fan mount holes  113  and prevent the outside air from flowing into the garment body  110 B when the fans  140  are not mounted on the fan mount holes  113 . As shown in  FIG.  6    as an example, each of the fan mount hole covers  1131  includes a cover part  1131   a , a fixed part  1131   b  that extends from the cover part  1131   a  toward one side, and an attaching-detaching part  1131   c  that extends toward the other side. 
     (Configuration of Fan Mount Hole Cover) 
     The cover part  1131   a  is made of a material having low air permeability (e.g., polyester). The cover part  1131   a  covers the fan mount hole  113 . As with the garment body  110 B, the cover part  1131   a  may have a multiple layer structure like the sheet member S. 
     The fixed part  1131   b  extends in one side from the cover part  1131   a . The fixed part  1131   b  is fixed on the back surface side near the fan mount hole  113  to prevent the loss of the fan mount hole cover  1131 . 
     The attaching-detaching part  1131   c  extends in the other side from the cover part  1131   a . On the attaching-detaching part  1131   c , a hook-and-loop fastener is stuck so as to be attachable and detachable from a hook-and-loop fastener stuck near the fan mount hole  113 , for example. Thus, when the fan  140  is not mounted, the fan mount hole cover  1131  serves as a cover of the fan mount hole  113  by covering the fan mount hole  113  with the cover part  1131   a  on the inside of the garment body  110 B. 
     When the heat insulation layer  3  is made of down as described above, it is preferable that the cover part  1131   a  be substantially rectangular. 
     The fan mount hole cover  1131  may not have the fixed part  1131   b  and may be a component independent from the garment body  110 B. The garment body  110 B may be provided with a storage bag in which the fan mount hole covers  1131  is stored. 
     [Air-Discharge Part Adjuster] 
     The air-discharge part adjuster  1143  is a structure for adjusting the air discharge pressure at the air-discharge part  114 . The configuration of the air-discharge part adjuster  1143  differs depending on the position of the air-discharge part  114  on the garment body  110 B. 
     (Collar Air-Discharge Part Adjuster) 
     When the collar air-discharge part  1141  is provided, the air-discharge part adjuster  1143  includes collar adjuster belts  1143   a  and buttonholes  1143   b  formed on the ends at the front part, as shown in  FIG.  7 A  and  FIG.  7 B , for example. The collar adjuster belts  1143   a  have an appropriate length and are arranged at left and right of the garment and extend between the front part and the back part of the garment. One end of each of the collar adjuster belts  1143   a  is fixed to the back fabric  4 B (the inner surface of the garment cloth of the garment body  110 B) around the region corresponding to the shoulder blade below the collar. When the collar adjuster belts  1143   a  are buttoned with the upper buttonholes  1143   b  as shown in  FIG.  7 A , the upper part of the garment body  110 B is lifted above the body, and the air discharge pressure at the collar air-discharge part  1141  weakens. When the collar adjuster belts  1143   a  are buttoned with the lower buttonholes  1143   b  as shown in  FIG.  7 B , the upper part of the garment body  110 B closely fits to the body, and the air discharge pressure at the collar air-discharge part  1141  strengthens. 
     Although  FIG.  7 A  and  FIG.  7 B  show two buttonholes  1143   b  formed on the respective collar adjuster belts  1143   a , the number of buttonholes  1143   b  is not limited thereto. There may be three or more buttonholes  1143   b  so that the air discharge pressure at the collar air-discharge part  1141  is adjustable by multiple levels. 
     Instead of the buttons, a hook-and-loop fastener structure may be used so that the air discharge pressure at the collar air-discharge part  1141  is continuously adjustable. 
     (Sleeve Air-Discharge Part Adjuster) 
     When the sleeve air-discharge parts  1142  are provided, the air-discharge part adjuster  1143  may be configured to adjust the diameter of the sleeve edge. For example, as shown in  FIG.  8 A  and  FIG.  8 B , a linear fastener  1143   c  that is freely opened and closed is provided at a cut formed at the sleeve edge or near the sleeve edge in parallel with the arm part. By adjusting the degree of how much the opening opens, the air discharge pressure on the air flowing out through the sleeve can be adjusted. 
     Further, as shown in  FIG.  8 C  as an example, a sleeve adjuster belt  1143   d  having a hook-and-loop fastener may be provided on the outside of the sleeve edge. The degree of how much the opening of the sleeve air-discharge part  1142  opens and the air discharge pressure on the air flowing out may be adjusted by adjusting the strength of fastening the sleeve adjuster belt  1143   d.    
     Further, as shown in  FIG.  8 D  as an example, a rib part  1143   e  that is an independent cylindrical knitted part may be provided. By attaching and detaching the rib part  1143   e  on the sleeve edge with a hook-and-loop fastener, the air discharge pressure on the air flowing out from the sleeve may be adjusted. 
     When the rib part  1143   e  is provided, a plastic cylinder  1144  that is covered with cloth and that serves as a sealing part of the sleeve air-discharge part  1142  may be fitted to the rib part  1143   e  so as to completely seal the sleeve air-discharge part  1142 , as shown in  FIG.  8 E . 
     When the sleeve air-discharge part  1142  is provided, it is preferable that the circumference length of the sleeve air-discharge part  1142  be adjustable to 130% or greater of the minimum circumference length so that a more sufficient amount of air can be discharged. 
     (Air-Discharge Adjuster for Hood) 
     As shown in  FIG.  9   , when a hood  117  for covering the head and the neck of the wearer is provided at the part corresponding to the collar of the garment body  110 B, a band  1143   f  may be provided on the back fabric of the hood  117 . The band  1143   f  is wide and made of mesh, and is shorter than the length of the inside of the head part of the hood  117 . 
     With such a belt  1143   f , the hood  117  is lifted up, and a space is formed between the back fabric of the hood  117  and the parietal region of the head. Accordingly, the air discharge pressure weakens. 
     (Air-Discharge Adjuster for Shoulder) 
     As shown in  FIG.  10 A , a shoulder lifting plate(s)  1143   g  that has protrusions on both ends and that gently curves may be provided. On the left and right of the front part and the back part of the garment body  110 B, insertion parts (not illustrated) in which the protrusions can be inserted may be provided. 
     As shown in  FIG.  10 B , when the protrusions of the shoulder lifting plate  1143   g  are inserted in the insertion parts, the shoulder lifting plate  1143   g  is connected to the garment body  110 B. When the wearer wears the garment body  110 B, the shoulder of the wearer abuts the shoulder lifting plate  1143   g , and the upper part of the garment body  110 B is lifted from the body. Accordingly, a space is formed and the air discharge pressure at the collar air-discharge part  1141  weakens. 
     Advantageous Effects of Embodiment 
     According to a known garment body of a fan-equipped garment, the outside air enters inside the garment body through the air discharge part(s). On days the outside air temperature is low (e.g., in winter), the fan-equipped garment is not suitable because the outside air having a temperature lower than the skin temperature flows in and decreases the skin temperature. 
     On the other hand, the fan-equipped garment  100 B in this embodiment includes the fan mount hole covers  1131  that cover the fan mount holes  113 ; and the air-discharge part adjuster(s)  1143  for adjusting the degree of how much the opening of the air-discharge part  114  opens and the air discharge pressure at the air-discharge part  114 . Such a fan-equipped garment  100 B can prevent the outside air from flowing into the fan-equipped garment  100 B. Therefore, even on a day the outside air temperature is low, the wearer can comfortably wear the fan-equipped garment  100 B. 
     Fourth Embodiment 
     The fan-equipped garment  100 C according to the fourth embodiment is described with reference to  FIG.  11 A  to  FIG.  11 C . The parts that are the same as the parts of the fan-equipped garment  100  in the first embodiment are given the same reference numerals, and the description thereof is omitted. 
     The garment body  110 C according to the fourth embodiment is a coat type that covers the trunk, the arms, and part of the legs of the wearer. Since the garment body  110  in the first embodiment is a blouson type that covers the trunk and the arms of the wearer, the air-leakage preventer  112  can be provided at the lower part of the garment body  110 . The garment body  110 C in the fourth embodiment, on the other hand, is long enough to cover part of the legs of the wearer. Therefore, when the air-leakage preventer  112  is provided at the hem, the garment body  110 C does not look so nice, and the wearer may not move easily. 
     To deal with this, the garment body  110 C according to the fourth embodiment is provided with an inner hem  112 Ca as the air-leakage preventer  112 C at the part corresponding to the waist of the wearer, as shown in  FIG.  11 A . 
     Thus, as with the garment bodies  110  to  110 B, the garment body  110 C can prevent the outside air from entering through the bottom of the air-leakage preventer  112 C, while retaining the external appearance and the easiness of movement of the coat-type garment body  110 C. Further, a flow channel is formed such that the outside air taken in by the fans  140  is discharged through the air-discharge part  114 , so that the cooling effect is enhanced for the upper half of the wearer&#39;s body. 
     The air-leakage preventer  112 C for the coat-type garment body  110 C is not limited to the inner hem  112 Ca. As shown in  FIG.  11 B , multiple ring-shaped insertion parts  112 Cb may be provided on the back surface side of the garment body  110 C, and a tubular body  112 Cc made of a low-density sponge pipe or the like may be inserted, so that no space is present between the garment body  110 C and the waist of the wearer. 
     Herein, the insertion parts  112 Cb may not be provided on the inside, and the tubular body  112 Cc may be directly sewn on the garment body  110 C. 
     The air-leakage preventer  112 C may be formed by changing the shape of the garment body  110 C. For example, as shown in  FIG.  11 C , the front fabric  2 , the heat insulation layer  3 C, and the back fabric  4  may be joined together with stitches only in the sidewise direction, and the heat insulation layer  3  may be thick around the waist so that the space between the waist and the back fabric  4  is narrowed. 
     Other Modifications 
     Although the color of the garment body  110  is not limited to a specific color in the above embodiments, it is preferable that the front fabric  2  have a light color and the back fabric  4  have a deep color. The light-colored front fabric  2  can have an increased sunlight reflectivity, and the deep-colored back fabric  4  can have an increased sunlight absorbency. 
     As for the material of the garment body  110 , it is preferable that the front fabric  2  be made of a material having a high reflectivity and that the back fabric  4  be made of a material having a high absorbency in consideration of the wavelength distribution of the sunlight. Further, although the sheet member S has the front fabric  2  and the heat insulation layer  3  or has the front fabric  2 , the heat insulation layer  3 , and the back fabric  4 , the sheet member S is not limited to these examples. The sheet member S may have more layers. 
     Naturally, detailed configurations and so forth of the above embodiments can be appropriately modified. 
     INDUSTRIAL APPLICABILITY 
     The present invention is applicable to a garment body of a fan-equipped garment and the fan-equipped garment, the garment body having high heat-insulation effects and being able to block the sunlight and thereby functioning effectively. 
     REFERENCE SIGNS LIST 
     
         
           2  Front fabric 
           3 ,  3 C Heat insulation layer 
           4 ,  4 B Back fabric 
           100 ,  100 A,  100 B,  100 C Fan-equipped garment 
           110 ,  110 A,  110 B,  110 C Garment body 
           112 ,  112 C Air-leakage preventer 
           113 ,  113 A Fan mount hole 
           1131  Fan mount hole cover 
           1141  Collar air-discharge part 
           1142  Sleeve air-discharge part 
           1143  Air-discharge part adjuster 
           1143   e  Rib part 
           1144  Cylinder (sealing part) 
           117  Hood 
           120  Power source (power source) 
           140 ,  140 A Fan (air introducer)