as discussed above , embodiments of the present invention relate to the apparel industry , in particular , the present invention belongs to the field of sun protection head gear considered cap accessories . more particularly , the present invention provides a new type of sunshade that can be temporarily affixing to any size of cap with a half moon shaped opening at the bottom of the back of the cap . fig1 shows a side view of a typical cap 1 with a half moon shaped opening 3 at the bottom of the back of the cap 1 . the sunshade generally comprise of two principal components : a strap 4 especially designed to provide a firm and close assembly to the cap 1 , and a shield 10 , which is sewed to the strap 4 , designed to provide the necessary sun protection . an isometric projection of the strap 4 is shown in fig2 . the strap 4 has a concave shape determined by the curvature of the cap 1 formed by the line 7 that connects the upper point of the half moon shaped opening at the bottom of the back of the cap ( the 90 degree point of the half moon ) and the opposite outer points at each end of bill ( line 7 is shown in fig3 and fig4 ). the cap size will define the curvature of the strap 4 ( the concave shape of the strap will change to accommodate to each particular cap size ) and the length 6 of the strap 4 . therefore , to design the strap 4 , first , the size of the cap 1 must be determined . once the size of the cap 1 is defined , the strap 4 can be designed . it is important to note that the concave shape of the strap is an important feature of the strap 4 given it allows the strap 4 to have a very close and firm attachment to the cap 1 . the strap 4 has three clips 8 to secure it to the cap 1 and create a snug fit . as illustrated in fig5 , one of the clips 8 is located at the center of the strap 4 , while the other two are located at each end of the strap 4 . the clip 8 located at the center of the strap 4 will be affixed to the cap at the top part of the half moon shaped opening 3 at the bottom of the back of the cap ( fig6 ). the other two clips 8 located at each end of the strap 4 will be affixed to the bill of the cap . the three clips 8 and the concave shape of the strap 4 provide a close fit to the cap once the strap 4 is affixed to the cap 1 as illustrated in fig7 and 8 . the width 5 of the strap 4 will be determined by the length 9 of the clips 8 . the strap 4 will have a width 5 equal or greater than the clips &# 39 ; length 9 . all of these measurements ; the curvature , the length 6 and the width 5 define the dimensions of the strap 4 . the strap 4 can be made of different types of fabrics and the following examples are intended to be illustrative and not exhaustive . the strap 4 can be made of soft leather ; a high denier urethane coated woven nylon ; a sturdier twill fabric and a softer , thinner cotton material which is layered with the twill fabric which is then folded over the cotton and sewn together ; a single or two - ply cotton twill , heavy denim or dungaree . these examples suggest many types of variations and alternatives to those skilled in this art to accommodate the fabric of the strap 4 to best fit the wearer &# 39 ; s intention of application . the clips 8 affixing system can be subdivided into two categories . the first category involves the use of three hidden clips 8 to the eye of the wearer . the clips are affixed to the interior part of the strap 4 , for example , as shown in fig6 for the center clip . the second category involves the use of clips which have some kind of ornament 11 that is visible to the wearer . the clips 8 , for the two categories , are any type of commercially available spring type clip , well known in the art , that are fitted to affix the strap 4 to the cap 1 . those skilled in this art will determined if the three clips are the same model or they are different ( for example , the three clips are all bulldog clips or one is a bulldog clip and the other two are other type of clips ) to best accommodate the strap 4 to the cap 1 and to the wearer . the clips 8 are secured to the strap 4 by button snaps and / or glued or sewn to provide a firm and fixed attachment . the second component of the sunshade is the shield 10 . the shield 10 is manufactured separately from the strap 4 and once finished is sewn to the strap 4 . the shield 10 shape and dimensions may be varied substantially to accommodate to the size of the cap , and the sex and age of the wearer , provided that the essential features and functions of the invention are met . the shape of the shield 10 can be rectangular , trapezoidal , crescent shaped or any other particular shape that those skilled on the art think it is best to met the required sunshade functions and attributes . for illustrative purposes , and not intended to be limiting , an example of a possible shape of the shield 10 is shown in fig9 . the figure illustrates an isometric projection of a trapezoidal shaped shade 10 . once the shield 10 is finished is sewn to the strap 4 as is illustrated in fig1 which shows a perspective view of the strap 4 attached to the shield 10 . fig1 illustrates a perspective view of the sunshade attached to a cap on a wearer , and fig1 illustrates a rear perspective view of the trapezoidal shaped sunshield attached to a cap 1 . the shield 10 can be made from a variety of patterns and fabrics . those skilled on the art will determine the appropriate shield 10 fabric that is specific to the particular application . the shield 10 material can be of any appropriate composition of cloth , for example , cotton , polyester , blends or other natural or syntactic fabrics . for example , one option of the sunshade is to provide sun protection plus sweat control for those wearers with excessive sweating or hyperhidrosis . in this case , the shield 10 material can be terry cloth . the second category of clips 8 affixing system include clips 8 that have some type of ornament 11 to enhance the look of the sunshade . for example , fig1 . illustrates a sunshade where the front two clips have a flower ornament 11 to make the sunshade more attractive to little girls . it must be noted that there is no limit to the type of ornament 11 that can be employed . the following examples are intended to be illustrative and not exhaustive . for example , types of ornaments 11 that can be used are : business logos , flashing ornaments & amp ; led body lights ( the invention can be used also at night as a cloth accessory ), or any type of ornament that those skilled on the art think will enhanced the sunshade and make it more appealing to certain age groups . even though there are several advantages of having the sunshade made - up of two components ( strap and shield ), for example some of the advantages are : the strap and the shield can be made of different fabrics , for example , the strap can be made of a stronger fabric to provide a snug fit , while the shield of a very soft and light fabric ; the strap and the shield can have different designs ; or the shield can be sent to the screen - printing industry for promotional printing and further assembled to the strap ( the shield by itself can withhold the high temperatures of the drying ovens that are generally used to dry the printing inks ), if a less expensive sunshade is desired , an alternative design of the sunshade is to make it of only one piece of fabric as shown in fig1 . in this case , the strap 4 and the shield 10 are combined to form a new shield 12 ( this shield 12 takes up the strap 4 features ). the top part 13 of the shield 12 has the strap &# 39 ; s 4 concave shape feature and the three clips 8 to secure it to the cap 1 and to create a snug fit . the body of the shield 12 maintains the attributes and features of the shield 10 as previously described . to use the sunshade , a cap with a half moon shaped opening at the bottom of the back of the cap is required . the most common mode of operation will be that the user will affix the clip 8 located at the middle section of the strap 4 to the top part of the half moon shaped opening at the bottom of the back of the cap , as illustrated in fig6 . next , the other two clips 8 located at each end of the strap 4 will be affixed to the bill 2 of the cap 1 . the user then can put the cap on his / her head and placed the shield 10 as best fits over the shoulders to provide the necessary sun protection to the nape of the neck , ears and sides of the face . if necessary , the wearer can adjust the adjustment strap in the cap 1 , fasten it or loosen it , to have tight fit without the need of detaching the sunshade . the invention is easily and quickly installed or removed from the cap of the wearer , and can conveniently folded , stored and carried by the wearer for future use during the day . the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof ; therefore , the illustrated embodiment should be considered in all respects as illustrative and not restrictive , reference being made to the appended claims rather than to the foregoing description to indicate the scope of the invention .
the present invention relates to a more suitable method of temporarily affixing a sunshade to a cap with a half moon shaped opening at the bottom of the back of the cap . the sunshade generally includes a strap especially designed to provide a firm and close assembly to the cap , and a shield , which is sewed to the strap , designed to provide the necessary sun protection . the strap has a concave shape , and has three clips to secure it firmly and fixed to the cap . the shield is made of a lightweight fabric or cloth and its shape and size will varied to accommodate the sunshade design to the cap size , especially to accommodate the sunshade to caps for men , women or children .