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Elastic steel band for sun cap or hat and method and apparatus for manufacturing the sameRelated Patent Categories: Apparel, Head CoveringsElastic steel band for sun cap or hat and method and apparatus for manufacturing the same description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060143786, Elastic steel band for sun cap or hat and method and apparatus for manufacturing the same. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND [0001] 1. Field of the Invention [0002] The present invention relates to a band for a sun cap or a hat, which elastically comes in contact with the head to support the sun cap or the hat. More specifically, the present invention relates to an elastic steel band, which is wound over 1 revolution (360.degree.) when the sun cap or the hat is not worn, whereby keeping and portability characteristics of the sun cap or hat are improved, and method and apparatus for manufacturing the same. [0003] 2. Discussion of Related Art [0004] In doing a variety of meetings, such as a picnic party and an athletic meeting, and a variety of outdoor activities, such as outdoor work and sport viewing, a hat or a sun cap has been widely used. [0005] The conventional sun cap, however, comes in direct contact with the head, when being put on, so that a band element to support the sun cap is rolled in a circle shape of a diameter, which is a little smaller than the size of a common tofu. Such a diameter is designed to give a support force of a level, which can support the sun cap, when the sun cap is worn. Therefore, this diameter is substantially the same as a state where the hat is fully opened (state where the sun cap is worn). Accordingly, it is inconvenient to carry and keep the hat having such a large diameter, which makes a user inconvenient. [0006] More particularly, since the sun cap is designed to protect a wearer from a strong direct ray of light, there is no need for wearing such a sun cap at places such as the room and the shade of a tree. Thus, if the sun cap has to be worn or took off frequently in such places, it will make a user inconvenient in terms of portability. Also, there is a problem of loss. [0007] Therefore, there is a need for a sun cap of a structure in which the volume is reduced when being not worn, and distribution, keeping and portability characteristics are thus improved, without degrading the unique function and wearing property of the sun cap. SUMMARY OF THE INVENTION [0008] Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide an elastic steel band, which is mounted in a sun cap or a hat and is wound over one revolution (angle of over 360.degree.) when the sun cap or the hat is not worn, whereby the volume of the sun cap or the hat is significantly reduced when being not worn, and distribution, keeping and portability characteristics can be thus improved, and method and apparatus for manufacturing the same. [0009] To achieve the above object, according to the present invention, there is provided an elastic steel band, which is wound over 1 revolution (360.degree.) when a sun cap is not worn, and method of manufacturing the same. This method includes a press work step in which an elastic steel band material is cut into given size and shape and sun cap visor slots are perforated, a step in which an unit work piece is rolled over 1.5 revolutions (540.degree.) to less than 3 revolutions (1080.degree.), and a step in which both ends of the rolled steel band are rewound in a direction opposite to the rolling direction, thus forming unfolded units at both sides of the elastic steel band. [0010] Furthermore, according to the present invention, there is provided an elastic steel band rolling apparatus for rolling an elastic steel band material, which is combined with a flexible visor unit of a sun cap or a hat, and is wound over 1 revolution (360.degree.) when the sun cap or hat is not worn. The apparatus includes a driving unit, a power transmission unit for transferring power from the driving unit, first and second rollers which are driven by the power transmission unit, a rolling shaft disposed on the first and second rollers with it coming in contact with the first and second rollers at a location between the first and second rollers, wherein the rolling shaft transfers and rolls the unit work piece between it and the first and second rollers in cooperation with the first and second rollers, a supply unit for supplying a unit work piece, and a discharge unit for discharging the rolled elastic steel band. In this time, the first and second rollers include elastic drums which are brought into contact with the rolling shaft in order to form an interaction force for rolling the unit work piece from 1.5 revolutions to 3 revolutions. The unit work piece is rolled from 1.5 revolutions to 3 revolutions by means of an interaction force between the elastic drums of the first and second rollers and the rolling shaft, while moving from the supply unit sequentially between the elastic drum of the first roller and the rolling shaft and between the elastic drum of the second roller and the rolling shaft. The elastic drums are preferably urethane drums. [0011] Furthermore, according to the present invention, there is provided an elastic steel band, which is combined with a flexible visor unit of a sun cap or a hat and is wound over 1 revolution (360.degree.) when the cap or hat is not worn, thus reducing the volume. The elastic steel band for the sun cap or the hat includes a winding unit of over 1 revolution (360.degree.) at the center thereof, and unfolded units at both ends thereof. The elastic steel band is formed using an elastic steel material, which gives the elasticity enough to wind the flexible visor unit over 1 revolution (360.degree.) when the cap or hat is not worn, if the elastic steel band is combined with the flexible visor unit. The elastic steel preferably has a sufficient elasticity and rigidity, which can provide a sense of wearing in spite of an elastic force applied to the head when the cap or hat is worn, and can withstand hysteresis caused by a winding force and repetition stress when the cap or hat is not worn. It is preferred that the elastic steel is formed using elastic stainless steel (STS#301-EH). BRIEF DESCRIPTION OF THE DRAWINGS [0012] FIG. 1 is a perspective view illustrating an elastic steel band according to the present invention; [0013] FIG. 2a is a perspective view illustrating a sun cap to which the elastic steel band according to the present invention is attached; [0014] FIG. 2b is a perspective view illustrating a sun cap to which the elastic steel band according to another embodiment of the present invention is attached; [0015] FIG. 3 is a flowchart illustrating process steps for embodying a method of manufacturing an elastic steel band according to the present invention; [0016] FIG. 4 is a perspective view illustrating an unit work piece for manufacturing the elastic steel band according to the present invention; [0017] FIG. 5 is a perspective view illustrating the construction of an elastic steel band rolling apparatus for manufacturing the elastic steel band according to the present invention; [0018] FIG. 6 is a dismantled view illustrating the elastic steel band rolling apparatus according to the present invention; [0019] FIG. 7 is a lateral view illustrating the elastic steel band rolling apparatus according to the present invention; [0020] FIG. 8 is a lateral view illustrating the elastic steel band rolling apparatus according to the present invention; [0021] FIG. 9 is a cross-sectional view showing the construction of a rolling unit of the elastic steel band rolling apparatus according to the present invention; and Continue reading about Elastic steel band for sun cap or hat and method and apparatus for manufacturing the same... Full patent description for Elastic steel band for sun cap or hat and method and apparatus for manufacturing the same Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Elastic steel band for sun cap or hat and method and apparatus for manufacturing the same 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. Each week you receive an email with patent applications related to your keywords. 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