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  Headwear having exposed stitches to fix a lower hem thereofUSPTO Application #: 20060048275Title: Headwear having exposed stitches to fix a lower hem thereof Abstract: Headwear having exposed stitches to fix a lower hem thereof is disclosed. The headwear has a head-wearing portion being stretchable in at least a circumferential direction, and exposed stitches which are viewed outside and are disposed along the lower hem. The exposed stitches are formed by a stretch yarn as a bobbin thread and a non-stretch yarn as an upper thread. (end of abstract) Agent: Staas & Halsey LLP - Washington, DC, US Inventor: Byoung-Woo Cho USPTO Applicaton #: 20060048275 - Class: 002195100 (USPTO) Related Patent Categories: Apparel, Head Coverings, Having Crown And Horizontally Extending Visor (e.g., Baseball Cap, Etc.) The Patent Description & Claims data below is from USPTO Patent Application 20060048275. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to headwear such as a cap, a hat and a visor cap. More particularly, the present invention relates to elastic headwear with an elastic head-wearing portion having exposed stitches to fix a lower hem thereof. [0003] 2. Background of the Invention [0004] Conventional elastic headwear such as a cap, a hat and a visor cap includes an elastic head-wearing portion and a stretchable sweatband. The head-wearing portion is a crown portion in a cap or a hat. It may be a circumferential strap which encircles the head of a user in a visor cap. [0005] In the case of a cap or a hat, the elastic crown portion which is composed of a stretchable fabric that includes a stretchable strand is flimsy and difficult to maintain in its semispherical shape, so it has drawbacks in that it is easily wrinkled or crushed when being carried and displayed. Further, when the elastic crown portion is coupled with the stretchable sweatband, it is rumpled around its lower hem. When the headwear is used repeatedly for a long time, it usually suffers from overstretch, resulting in enlargement of the size of the crown portion. [0006] In order to overcome the drawbacks of the conventional elastic headwear, headwear using latex threads which is disclosed in Korean Utility Model Publication No. 20-0314989 B has been proposed. An elastic crown portion in the headwear is coupled to a stretchable sweatband in chain stitches (specifically double chain stitches as shown in FIG. 7 in the above publication) with latex threads and nylon stretch threads as upper and bobbin threads. Since both of the upper and bobbin threads are made of the stretch threads, they are likely to snap while sewing or wearing of the headwear. Further, when a thread at a particular spot snaps during the stretch of the crown portion, all chains connected to the spot are unraveled. When the chain stitches with stretch threads as bobbin and upper threads are used in connection with the crown portion and sweatband, the headwear cannot be suitably supported by stitches that are likely to be extended excessively. SUMMARY OF THE INVENTION [0007] In view of the prior art described above, it is an object of the present invention to provide elastic headwear which is capable of retaining its shape through exposed stitches that fix a lower hem to its crown portion. [0008] It is another object of the present invention to provide headwear with exposed stitches which prevent its elastic crown portion from being deformed due to long and repeated uses. [0009] It is still another object of the present invention to provide elastic headwear with exposed stitches which are difficult to snap, and that are difficult to unravel even if they do snap. [0010] To achieve these and other objects, as embodied and broadly described herein, headwear includes a head-wearing portion being stretchable in at least a circumferential direction thereof; and exposed stitches which are viewed outside and are disposed along a lower hem of the head-wearing portion. [0011] The exposed stitches are formed of a stretch yarn as a bobbin thread and a non-stretch yarn as an upper thread. The stretch yarn is preferably selected from a spandex yarn, polyurethane yarn, polyurethane covered yarn, latex yarn, and highly-twisted yarn. [0012] Preferably, the exposed stitches are lock stitches. [0013] A stretch tape may be attached the inside of the lower hem, or attached between a folded portion of the lower hem when a lower edge of the crown portion is folded to form the lower hem. Further, a stretchable sweatband may also be attached along the inside of the lower hem by the exposed stitches. [0014] According to another aspect of the present invention, a method of forming headwear includes: [0015] forming a crown portion which is stretchable in at least a circumferential direction thereof; [0016] folding a lower edge of the head-wearing portion so as to form a lower hem; and [0017] stitching along the lower hem with a stretch yarn as a bobbin thread and a non-stretch yarn as an upper thread. [0018] The stitches from the stitching along the hem are exposed outside. BRIEF DESCRIPTION OF THE DRAWINGS [0019] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate an embodiment of the invention, and, together with the description, serve to explain the principles of the invention: [0020] FIG. 1 shows elastic headwear according to a first embodiment of the present invention; [0021] FIGS. 2A-2D are cross-sectional views of a lower hem construction of the headwear of FIG. 1, Continue reading... Full patent description for Headwear having exposed stitches to fix a lower hem thereof Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Headwear having exposed stitches to fix a lower hem thereof patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. 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