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Helmet shieldRelated Patent Categories: Apparel, Guard Or Protector, For Wearer's Head, FaceHelmet shield description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070083966, Helmet shield. 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 a helmet shield, and more specifically to a helmet shield such as a motorcycle helmet shield for blocking strong wind from ahead during driving, in which the central main area of the helmet excluding its edge is formed in an upward-and-downward flat top-to-bottom rectilinear portion, and the edge surrounding this top-to-bottom rectilinear portion is formed in a curved surface portion of a three-dimensional shape having a predetermined width, so that it is possible to easily attach, to the top-to-bottom rectilinear portion, a plurality of transparent films for removing foreign matter (insects, etc.). [0003] 2. Description of the Related Art [0004] In general, a motorcycle helmet H for high-speed driving such as a full-face helmet is provided with a transparent shield for securing the field of vision, as shown in FIG. 1. [0005] This shield S can be opened upward as necessary, and is pivotally mounted to the helmet H by hinge pins P so as to be closed by pulling it down during high-speed driving. The shield S is made of comparatively light material to make the helmet lightweight. [0006] Meanwhile, it is natural to form the front of the helmet in a curved shape along the contour of the helmet because the hinge pins P in such a shield are located on the left and right sides of the helmet. Like this, the front portion of the shield is formed in a top-to-bottom curved shape, but, as necessary, it can also be made in a top-to-bottom rectilinear line shape formed in a straight line across the whole width from the top end to the bottom end of the shield. The helmet shield has a thickness T of about 2 mm. [0007] In a top-to-bottom rectilinear shield, the force of wind blowing from ahead during driving acts also on the thickness portion of the helmet shield. Because of that, not only during high-speed driving but also when wind is strong while driving at low speed, a phenomenon occurs in which the front of the shield is lifted upward with the center of rotation at the hinge pins P of the left and right sides. Such a phenomenon could cause the user a situation in which he cannot concentrate on driving. [0008] Meanwhile, as shown in FIGS. 2 and 3, a top-to-bottom curved type is an improvement over such a problem of the top-to-bottom rectilinear type. Since it is made in a curved shape so that wind can move away from the high portion of the center, the phenomenon of the shield being lifted up during driving is alleviated. [0009] Meanwhile, when you ride a motorcycle professionally or in motorcycle racing, your field of vision is obstructed if foreign matter sticks to the shield or an insect, etc. hits and becomes stuck to it. [0010] A way generally used to solve such a problem is to keep many sheets of transparent film attached on the surface of the helmet shield, which can be taken off one by one every time you have difficulty in securing the field of vision because of a foreign matter stuck to it. [0011] In attaching to use such transparent films, a top-to-bottom rectilinear shield is more advantageous than a top-to-bottom curved shield. But as mentioned above, there is a problem in that a top-to-bottom rectilinear shield inconveniences driving because it has a phenomenon of being lifted up by the effect of wind. SUMMARY OF THE INVENTION [0012] Thus, the present invention is to solve such a conventional problem as mentioned above with an object to provide a helmet shield, in which the edge of the shield has a curved portion maintained as in a top-to-bottom curved shield to prevent the coming-off phenomenon of the shield while the central main area excluding the edge is formed in a flat rectilinear portion as in a top-to-bottom rectilinear shield, so that it is possible not only to attach transparent films to the rectilinear portion easily but also to minimize the effect of wind even during high-speed driving. [0013] In accordance with the present invention, there is provided a helmet shield comprising: a top-to-bottom rectilinear portion which is formed flatly in the vertical direction in the central main area of the shield excluding its edge, and a curved surface portion which is formed on the edge surrounding said top-to-bottom rectilinear portion and having predetermined with W in a three-dimensional shape. [0014] Preferably, said curved surface portion is formed only on the bottom end edge of the shield. BRIEF DESCRIPTION OF THE DRAWINGS [0015] Other objects and aspects of the present invention will become apparent from the following description of embodiments with reference to the accompanying drawings in which: [0016] FIG. 1 is a lateral view of a full-face helmet for a motorcycle with a conventional shield; [0017] FIG. 2 is a sectional view showing the configuration of a conventional top-to-bottom curved shield; [0018] FIG. 3 is a lateral view showing the assembly of a conventional top-to-bottom curved shield; [0019] FIG. 4 is a sectional view showing the configuration of a helmet shield according to the present invention; and [0020] FIG. 5 is a lateral view showing how the helmet shield according to the present invention is mounted on the helmet. DESCRIPTION OF THE PREFERRED EMBODIMENT Continue reading about Helmet shield... Full patent description for Helmet shield Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Helmet shield 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. Start now! - Receive info on patent apps like Helmet shield or other areas of interest. ### Previous Patent Application: Helmet shield Next Patent Application: Lateral displacement shock absorbing material Industry Class: Apparel ### FreshPatents.com Support Thank you for viewing the Helmet shield patent info. IP-related news and info Results in 0.10794 seconds Other interesting Feshpatents.com categories: Novartis , Pfizer , Philips , Polaroid , Procter & Gamble , 174 |
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