Abstract:
Replaceable forward foldable curved motorcycle windshield assemblies, systems, devices and methods with a base separated from an upper curved main section attached together with a pair of hinges which allows the main section to fold outward away in a vertical to horizontal direction forward of the motorcycle when force is applied to the main section of windshield. An elongated trim covers the upper leafs of the hinges between of the windshield. The base of the windshield is hidden beneath the existing mounting frame on the motorcycle.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application claims the benefit of priority to U.S. Provisional Application Ser. No. 62/084,167 filed Nov. 25, 2014, the entire disclosure of which is incorporated by reference in its&#39; entirety. 
    
    
     FIELD OF INVENTION 
     This invention relates to windshield safety for motorcycles, and in particular to replaceable forward foldable curved motorcycle windshield assemblies, systems, devices and methods with a curved translucent base separated from an upper curved translucent main section attached together with a pair of curved hinges which allows the main section to fold outward away in a vertical to horizontal direction forward of the motorcycle when force is applied to the main section of windshield. 
     BACKGROUND AND PRIOR ART 
     Most motorcycles have their windshields rigidly mounted in place as a solid structure which does not move relative to the motorcycle. The windshields are generally made from tempered glass which can break into multiple small pieces or from hard material such as acrylic, and the like. During an abrupt stop or in an impact from an accident, the motorcyclist is thrust forward. The impact with the hard plastic or glass has been known to cause head injury to the cyclist. Windshields made from break away materials such as tempered glass have been known to break into shards from the impact which can cause severe lacerations to the face, neck and upper torso. 
     Over the years attempts have been made to have some fold out capability to a motorcycle windshield. See for example, U.S. Pat. No. 1,387,349 to Campbell; U.S. Pat. No. 4,087,110 to Vetter; and U.S. Pat. No. 4,465,315 to Barstow. However, there are many problems with these attempts. 
     The Campbell &#39;349 reference requires a separate piston arrangement to be clamped to a steering wheel which both can obstruct the field of vision of the cyclist as well as be a hazard to the cyclist if an impact or accident occurs since the cyclists can easily hit into the obstructing piston post. 
     The Vetter &#39;110 reference requires a fairing with an upper edge having a recessed seat  30  where the bottom of the folding windshield is fit into, and hinges attach the bottom of the windshield to the separate fairing. In addition to the expense of requiring a separate fairing, this devices requires extra hardware such as clips  18  to secure edges of the windshield in addition to the flat hinges  16 , and would appear to be expensive and difficult to manufacture and attach onto existing curved motorcycle windshields or fairings. 
     The Barstow &#39;315 reference requires an unsightly continuous hinge contraption that also adds extra weight and substantially greater expense to the motorcycle over typical windshields 
     Thus, the need exists for solutions to the above problems with the prior art. 
     SUMMARY OF THE INVENTION 
     A primary objective of the present invention is to provide safe replaceable forward foldable curved motorcycle windshield assemblies, systems, devices, and methods with a base separated from an upper curved main section attached together with a pair of curved hinges which allows the main section to fold outward away in a vertical to horizontal direction forward of the motorcycle when force is applied to the main section of windshield. 
     A secondary objective of the present invention is to provide safe replaceable forward foldable curved motorcycle windshield assemblies, systems, devices, and methods that both aesthetic and not unsightly to the cyclist. 
     A third objective of the present invention is to provide safe replaceable forward foldable curved motorcycle windshield assemblies, systems, devices, and methods, having minimal hardware by using only curved hinges, hinge fasteners, and an elongated curved trim piece. 
     A fourth objective of the present invention is to provide safe replaceable forward foldable curved motorcycle windshield assemblies, systems, devices, and methods that has no more substantial weight to the motorcycle over an existing windshield. 
     A fifth objective of the present invention is to provide safe replaceable forward foldable curved motorcycle windshield assemblies, systems, devices, and methods that is generally no more expensive than a traditional windshield. 
     A sixth objective of the present invention is to provide safe replaceable forward foldable curved motorcycle windshield assemblies, systems, devices, and methods of using a folded curved windshield with an elongated trim that covers upper leafs of curved hinges, wherein the base of the curved windshield is hidden beneath the existing mounting frame on the motorcycle. 
     An embodiment of the retrofit windshield for a motorcycle can include a curved windshield having a translucent upper curved section with an top edge and a bottom edge, a front face and a rear face, and a translucent lower base section with a top edge having an identical contour to the bottom edge of the upper curved section, and a front face and a rear face, the lower base section having a bottom end being mountable to an existing frame on a motorcycle, a curved hinge having a top leaf attached to a front portion of the upper section of the windshield adjacent to the bottom edge, and the curved hinge having a bottom leaf attached to a front portion of the lower base section adjacent to the top edge of the lower base section, and a trim across the front face of the upper windshield section covering the top leaf of the curved hinge, wherein the windshield folds to a front of the motorcycle when a force is applied to a rear surface to the upper windshield section. 
     The retrofit windshield can further include slots and fasteners for attaching the bottom end of the translucent windshield base section to the frame on the motorcycle. 
     The curved hinge can include pair of curved hinges each spaced apart from one another and attached to a mid-portion on the front face of the upper windshield section and to a mid-portion on the front face of the translucent windshield base section. 
     Each of curved hinges includes a single left hand curved hinge and a single right hand curved hinge. 
     Each of the curved hinges can include mounting studs with threaded ends extending to one side of the top leaf and the bottom leaf, the studs for passing through openings in the upper windshield section and the windshield base section, and nuts for threading onto the threaded ends of the mounting studs. The nuts can be acorn nuts. 
     The curved hinges can include a spring for biasing the hinge in an open extended position. 
     The trim can include a length of at least as long as a length between a left side outer edge and a right side outer edge of the upper curved windshield section. The trim can include a length greater than a length between a left side outer edge and a right side outer edge of the upper windshield section. 
     The trim can include a flexible gasket between the trim and the upper windshield section, and include mounting fasteners for fastening the trim and gasket to the upper windshield section. 
     The translucent upper section of the windshield can consist of a one piece translucent section, and the translucent lower base section consists of another one piece translucent section. 
     A preferred embodiment of the forward foldable windshield assembly for motorcycles, can include a curved windshield having a single translucent upper curved section with an top edge and a bottom edge, a front face and a rear face, and a single translucent lower curved base section with a top edge having an identical contour to the bottom edge of the upper curved section, and a front face and a rear face, the lower base section having a bottom end being mountable to an existing frame on a motorcycle, a pair of curved hinges, each having a top leaf attached to a front portion of the upper section of the windshield adjacent to the bottom edge, and each curved hinge having a bottom leaf attached to a front portion of the lower curved base section adjacent to the top edge of the lower base section, and a single trim with a gasket rear surface fastened across the front face of the upper windshield section covering the top leaf of the hinge, wherein the windshield folds to a forward of the motorcycle. 
     Each of the curved hinges can include mounting studs with threaded ends extending to one side of the top leaf and the bottom leaf, the studs for passing through openings in the upper windshield section and the windshield base section, and nuts for threading onto the threaded ends of the mounting studs. The nuts can be acorn nuts. 
     The curved hinges can include a spring for biasing the hinge in an open extended position. 
     The trim can include a flexible gasket between the trim and the upper windshield section, and include mounting fasteners for fastening the trim and gasket to the upper windshield section. 
     Further objects and advantages of this invention will be apparent from the following detailed description of the presently preferred embodiments which are illustrated schematically in the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE FIGURES 
         FIG. 1  is a front perspective view of motorcycle with removable prior art windshield. 
         FIG. 2  is another perspective view of the motorcycle of  FIG. 1  with prior art windshield removed. 
         FIG. 3  is a front perspective view of the motorcycle of  FIGS. 1-2  with a novel folding windshield ready to install. 
         FIG. 4  is a perspective view of the motorcycle of  FIG. 3  with the folding windshield installed. 
         FIG. 5  is an enlarged view of  FIG. 4  with the folding windshield folded forward. 
         FIG. 6  is a front right perspective view of the folding windshield of  FIGS. 3-5 . 
         FIG. 7  is a rear right perspective view of folding windshield of  FIG. 6   
         FIG. 8  is a front view of the folding windshield of  FIG. 6 . 
         FIG. 9  is a rear view of the folding windshield of  FIG. 7 . 
         FIG. 10  is a top view of the folding windshield of  FIG. 6 . 
         FIG. 11  is a bottom view of the folding windshield of  FIG. 6 . 
         FIG. 12  is a left side view of the folding windshield of  FIG. 6 . 
         FIG. 13  is a right side view of the folding windshield of  FIG. 6 . 
         FIG. 14  is a front perspective view of folding windshield of the previous figures folded down. 
         FIG. 15  is a rear perspective view of the folded down windshield of  FIG. 14 . 
         FIG. 16  is a front view of the folded windshield of  FIG. 14 . 
         FIG. 17  is a rear view of the folded windshield of  FIG. 16 . 
         FIG. 18  is a top view of the folded windshield of  FIG. 14 . 
         FIG. 19  is a bottom view of the folded windshield of  FIG. 14 . 
         FIG. 20  is a left side view of the folded windshield of  FIG. 14   
         FIG. 21  is a right side view of the folded windshield of  FIG. 14 . 
         FIG. 22  is a front exploded perspective view of the top section of the folding windshield. 
         FIG. 23  is a rear perspective view of the folding windshield assembly with the bottom section exploded. 
         FIG. 24  is a front view of a right hand curved hinge used in the folding windshield of the preceding figures in its closed condition. 
         FIG. 25  is a rear view of the curved hinge of  FIG. 24 . 
         FIG. 26  is a top view of the curved hinge of  FIG. 24 . 
         FIG. 27  is a bottom view of the curved hinge of  FIG. 24 . 
         FIG. 28  is a right side view of the curved hinge of  FIG. 24 . 
         FIG. 29  is a left side view of the curved hinge of  FIG. 24 . 
         FIG. 30A  is a front perspective view of the curved hinge of  FIG. 24 . 
         FIG. 30B  is a cross-sectional view of the curved hinge of  FIG. 30A  along arrows  30 B showing hinge lock component. 
         FIG. 31  is a rear perspective view of the curved hinge of  FIG. 30A . 
         FIG. 32A  is a front perspective view of the curved hinge of  FIG. 24  in an opened condition. 
         FIG. 32B  is a cross-sectional view of the curved hinge lock components of  FIG. 32A  along arrows  32 B. 
         FIG. 33  is a rear perspective view of the curved hinge of  FIG. 32A  in an opened condition. 
         FIG. 34  is an exploded perspective view of the curved hinge of  FIG. 34 . 
         FIG. 35  is a front view of a left hand curved hinge used in the folding windshield of the preceding figures in a closed position. 
         FIG. 36  is a rear view of the curved hinge of  FIG. 35 . 
         FIG. 37  is a top view of the curved hinge of  FIG. 35 . 
         FIG. 38  is a bottom view of the curved hinge of  FIG. 35 . 
         FIG. 39  is a right side view of the curved hinge of  FIG. 35 . 
         FIG. 40  is a left side view of the curved hinge of  FIG. 35 . 
         FIG. 41  is a front perspective view of the curved hinge of  FIG. 35 . 
         FIG. 42  is a rear perspective view of the curved hinge of  FIG. 41 . 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Before explaining the disclosed embodiments of the present invention in detail it is to be understood that the invention is not limited in its applications to the details of the particular arrangements shown since the invention is capable of other embodiments. Also, the terminology used herein is for the purpose of description and not of limitation. 
     In the Summary above and in the Detailed Description of Preferred Embodiments and in the accompanying drawings, reference is made to particular features (including method steps) of the invention. It is to be understood that the disclosure of the invention in this specification does not include all possible combinations of such particular features. For example, where a particular feature is disclosed in the context of a particular aspect or embodiment of the invention, that feature can also be used, to the extent possible, in combination with and/or in the context of other particular aspects and embodiments of the invention, and in the invention generally. 
     In this section, some embodiments of the invention will be described more fully with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout, and prime notation is used to indicate similar elements in alternative embodiments. 
     A list of components will now be described.
       10  Motorcycle with removable windshield (Prior Art).     20  Removable windshield (Prior Art).     30  Windshield mounting slot (Prior Art).     40  Windshield mounting fastener (Prior Art).     45  Mount frame on motorcycle for windshield     50  Curved Folding Windshield (FW) assembly in unfolded configuration.     55  FW in folded configuration.     60  FW mounting slot.     70  Translucent Top section of FW.     80  Translucent Bottom section of FW.     90 / 150  Right hand curved windshield hinge.     100 / 260  Left hand curved windshield hinge.     110  Top FW section curved trim strip.     110 R Outer end(s) cut to fit side edge contour of windshield     115  Trim strip gasket, such as a rubber seal.     120  Trim strip mounting fasteners (such as screws and bolts).     120 H hole for threaded end of fastener  120       130  Acorn nut securing item  120  above.     140  nuts (such as acorn nut(s) securing curved hinge leafs to top and bottom FW sections.     145  Washer(s) such as flat and/or locking washers.     150  Right hand (RH) windshield curved hinge.     160  Mounting stud(s) for top RH &amp; LH curved hinge leaf.     160 H Holes in top windshield section  70  for threaded end of mounting stud  160 .     170  Mounting stud(s) for bottom RH &amp; LH hinge leaf.     170 H Holes in bottom windshield section  80  for threaded end of mounting studs  170       180  Top RH curved hinge leaf.     190  Bottom RH curved hinge leaf.     195  Bent tab to limit unfolded position of top leaf relative to bottom leaf in the curved hinges     200  curved Hinge pin (universal).     210  Spring loaded hinge curved lock latch.     220  curved Hinge lock latch spring.     230  Latch catch feature on top RH curved hinge leaf knuckle.     240  Top RH curved hinge leaf knuckle.     250  Bottom RH curved hinge leaf knuckle.     260  Left hand (LH) windshield curved hinge.     270  Top LH hinge curved leaf.     280  Bottom LH curved hinge leaf.     290  Top LH hinge leaf curved knuckle.     300  Bottom LH hinge leaf curved knuckle.   

       FIG. 1  is a front perspective view of motorcycle  10  with removable prior art windshield  20 .  FIG. 2  is another perspective view of the motorcycle  10  of  FIG. 1  with prior art windshield  20  removed, which shows the lower end slots and fasteners  40  used to attach the windshield in place. 
       FIG. 3  is a front perspective view of the motorcycle  10  of  FIGS. 1-2  with a novel folding windshield  50  ready to install. 
       FIG. 4  is a perspective view of the motorcycle  10  of  FIG. 3  with the folding windshield  50  installed in an upright unfolded position  50 . 
       FIG. 5  is an enlarged view of  FIG. 4  with the top section  70  of the folding windshield  50  folded forward in the direction of arrow F, in a folded down position  55 . 
       FIG. 6  is a front right perspective view of the folding windshield  50  of  FIGS. 3-5 .  FIG. 7  is a rear right perspective view of folding windshield  50  of  FIG. 6   FIG. 8  is a front view of the folding windshield  50  of  FIG. 6 .  FIG. 9  is a rear view of the folding windshield  50  of  FIG. 7 .  FIG. 10  is a top view of the folding windshield  50  of  FIG. 6 .  FIG. 11  is a bottom view of the folding windshield  50  of  FIG. 6 .  FIG. 12  is a left side view of the folding windshield  50  of  FIG. 6 .  FIG. 13  is a right side view of the folding windshield  50  of  FIG. 6 . 
     Referring to  FIGS. 6-13 , the curved folding windshield  50  can include a translucent top section  70  attached to a translucent bottom section  80  by two curved hinges: a right hand curved hinge  90 / 150  and left hand curved hinge  100 / 260 , with a curved trim strip (trim cover)  110  covering the exposed top leaf portion of each curved hinge  90 / 150 ,  100 / 160 . Mounting slot(s)  60  can attach the folding windshield  50  to an upper frame mount  45  on the motorcycle (as shown in  FIGS. 3-4  by using existing mounting fastener(s)  40 . 
     Details of the curved hinges  90 / 150 ,  100 / 260  and how they are attached to the windshield  50  with the trim strip  110  and gasket  115  will be described in more detail in reference to  FIGS. 22-42  below. The curved hinges  90 / 150 ,  100 / 260  and curved trim strip  110  follow the curved surface of the curved top section  110  of folding windshield  50 . 
       FIG. 14  is a front perspective view of folding windshield  55  of the previous figures folded down.  FIG. 15  is a rear perspective view of the folded down windshield  55  of  FIG. 14 .  FIG. 16  is a front view of the folded windshield  55  of  FIG. 14 .  FIG. 17  is a rear view of the folded windshield  55  of  FIG. 16 .  FIG. 18  is a top view of the folded windshield  55  of  FIG. 14 .  FIG. 19  is a bottom view of the folded windshield  55  of  FIG. 14 .  FIG. 20  is a left side view of the folded windshield of  FIG. 14   FIG. 21  is a right side view of the folded windshield  55  of  FIG. 14 . 
     Referring to  FIGS. 3-5 and 14-21 , the translucent top section  70  can be folded forward relative to the mounted translucent bottom section  80  when a force is applied to the rear surface of the top section  70 . 
       FIG. 22  is a front exploded perspective view of the top section  70  of the folding windshield  50 .  FIG. 23  is a rear perspective view of the folding windshield  50  with the bottom section  80  and exploded from the top section  70 . 
     Referring to  FIGS. 22-23 , the top section  70  is shown with right hand curved hinge  90 , left hand curved hinge  100 , trim strip  110 , trim gasket  115  with trim strip mounting fasteners  120  (such as bolts and screws) that mount into mateable openings  120 H in the top section  70 , nuts  130 ,  140  (such as acorn nuts), with washer(s)  145  (such as flat and/or locking washer(s)). 
     Referring to  FIGS. 22-23 , the single translucent top section  70  and the single translucent bottom section  80  can initially be formed from a single translucent windshield which is cut into the separate sections. As such, the lower edge of the top section  70  can confirm to the upper edge of the bottom section  80 . 
       FIG. 24  is a front view of a right hand hinge  150  used in the curved folding windshield  50  of the preceding figures in its closed (expanded) upright condition.  FIG. 25  is a rear view of right hand curved hinge  150  of  FIG. 24 .  FIG. 26  is a top view of the right hand curved hinge  150  of  FIG. 24 .  FIG. 27  is a bottom view of the right hand curved hinge  150  of  FIG. 24 .  FIG. 28  is a right side view of the right hand curved hinge  150  of  FIG. 24 .  FIG. 29  is a left side view of the right hand curved hinge  150  of  FIG. 24 . 
       FIG. 30A  is a front perspective view of the right hand curved hinge  150  of  FIG. 24 .  FIG. 30B  is a cross-sectional view of the right hand curved hinge  150  of  FIG. 30A  along arrows  30 B showing curved hinge lock component.  FIG. 31  is a rear perspective view of the curved hinge  150  of  FIG. 30A . 
       FIG. 32A  is a front perspective view of the curved hinge  150  of  FIG. 24  in an opened (folded) condition for the curved folded windshield  55  of the preceding figures.  FIG. 32B  is a cross-sectional view of the curved hinge lock components of  FIG. 32A  along arrows  32 B.  FIG. 33  is a rear perspective view of the curved hinge  150  of  FIG. 32A  in an opened condition. 
       FIG. 34  is an exploded perspective view of the curved hinge  150  of  FIG. 24 . 
       FIG. 35  is a front view of a left hand curved hinge  260  used in the folding windshield  50  of the preceding figures in a closed (expanded) upright position.  FIG. 36  is a rear view of the left hand curved hinge  260  of  FIG. 35 .  FIG. 37  is a top view of the left hand curved hinge  260  of  FIG. 35 .  FIG. 38  is a bottom view of the curved hinge  260  of  FIG. 35 .  FIG. 39  is a right side view of the curved hinge  260  of  FIG. 35 .  FIG. 40  is a left side view of the curved hinge  260  of  FIG. 35 .  FIG. 41  is a front perspective view of the curved hinge  260  of  FIG. 35 .  FIG. 42  is a rear perspective view of the curved hinge  260  of  FIG. 41 . 
     Referring to  FIGS. 3, 4, 6-13, 22-31, 34-42 , the novel curved windshield  50  can include the top section  70  attached to the bottom section  80  by right hand curved hinge  90 / 150  and left hand hinge  100 / 260 . The threaded end of mounting studs  160  of both right hand curved hinge  90 / 150  and left hand curved hinge  100 / 260  can be placed on the front side of the top section  70  and placed through the holes  160 H. Nuts  140  (such as but not limited to acorn nuts) and washers  145  (such as but not limited to flat washers and locking washers) can be located on the rear side of the top section  70  to hold and lock the top right hand curved hinge leaf  180  and top left hand curved hinge leaf  270  in place. 
     Similarly the threaded end of mounting studs  170  of both right hand curved hinge  90 / 150  and left hand curved hinge  100 / 260  can be placed on the front side of the bottom section  80  and placed through the holes  170 H. Nuts  140  (such as but not limited to acorn nuts) and washers  145  (such as but not limited to flat washers and locking washers) can be located on the rear side of bottom section  80  to hold and lock the bottom right hand curved hinge leaf  190  and bottom left hand curved hinge leaf  280  in place. 
     As shown in  FIG. 22  an elongated trim strip  110  having a length at least as long as the width of the top windshield section  70  can be placed over the front of the top section  70  to cover the top leafs  180 ,  240  with a gasket  115 , such as a trim rubber seal sandwiched therebetween and held in place by fasteners  120  (such as screws and bolts) that pass through the trim strip  110  and gasket  115  and holes  120 H in the top section  70  and held and locked in place by nuts  130  and washers  145 . 
     As shown in  FIG. 19 , the outer end  110 R of trim strip  110  can be cut off along the dotted lines on both ends of the strip  110  in order to follow the side contours of the top curved windshield section  70 . 
     When assembled, the elongated trim strip  110  covers the upper leafs of the hinges  90 / 150 ,  100 / 260  between on the top section  70  of the curved windshield  50 . The base section  80  of the windshield  50  is hidden beneath the existing mounting frame  45  on the motorcycle  10 . 
     Referring to  FIGS. 24-31 and 34 , the right hand curved hinge  90 / 150  can include a top curved leaf  180  rotatably attached to a bottom curved leaf  190  by a curved hinge pin  200  passing through openings in both a top right hand curved hinge leaf knuckle  240  and a bottom right hand curved hinge leaf knuckle  250 . A spring loaded curved hinge lock latch  250  with curved hinge lock latch spring  220 , allows the top curved hinge leaf  180  and bottom curved hinge leaf  190  to be an open expanded position for keeping the curved windshield  50  in an unfolded position as shown in  FIGS. 3, 4 and 6-13 . 
     Referring to  FIGS. 35-41 , the left hand curved hinge  100 / 260  also includes a top curved hinge leaf  270  rotatably attached to a bottom curved hinge leaf  280  by a curved hinge pin  200  passing through openings in both a top left curved hand leaf knuckle  290  and a bottom left hand curved leaf knuckle  300 . Similarly, a spring loaded hinge lock latch  250  with curved hinge lock latch spring  220 , allows the top curved hinge leaf  270  and bottom curved hinge leaf  280  to be in an open expanded position for keeping the curved windshield  50  in an unfolded position as shown in  FIGS. 3, 4 and 6-13 . 
     Referring to  FIGS. 24-31 and 34-45 , a bent tab  195  extending up from the bottom curved leaf(s)  190 ,  280  can be used to limit the unfolded position of top curved leafs  180 / 240  relative to bottom curved leafs  190 / 250  in the hinges  90 / 150  and  100 / 260  by abutting against the latch catch  230  in the top right hand curved hinge leaf  180  and top left hand curved hinge leaf  270 . 
     Referring to  FIGS. 5, 14-21, 32A, 32B, 33, 34 , a force F pushing against a rear side of the top curved windshield section  70  can push against the curved hinge lock latch spring  220  allowing the top section  70  fold outward relative to the mounted bottom section  80  by rotating along curved hinges  90 / 100  and  150 / 260 . 
     The novel windshield invention can be mounted to a motorcycle fairing in a flexible manner that allows movement (rotation) of the top section  70  of the windshield in a forward direction which reduces or avoids impact of the head of the rider against the windshield. Such movement reduces or avoids the severity of head impacts, and damage caused by the rigid windshields that are conventional for motorcycles. 
     The novel windshield invention can be factory installed or dealership installed, or can be sold as a new kit or replacement kit for motorcycles. The novel invention can be a retrofit for motorcycles. 
     Although the drawings show the invention being with motorcycles, the invention can be used with other vehicles where a curved windshield is used, such as but not limited to being on scooters, jet skis, boats, and other vehicles, and the like. 
     Although the embodiments show a trim strip  110  and gasket  115  covering only the top leafs  180 ,  240  of the hinges  90 / 150  and  100 / 260 , another trim hinge can be used to cover the bottom leafs 
     The curved hinges  90 / 150  and  100 / 260  and related fasteners  120 ,  130 ,  140 ,  145 , can be formed from metal, such as but not limited to stainless steel, zinc coated metal, and the like. The trim strip  110  can be formed from metal, such as but limited to stainless steel, aluminum and plastics, and the like. 
     The windshield top and bottom sections  70 ,  80  can be formed from a translucent material, such as but not limited to acrylic, tempered glass, and other materials and the like. 
     While the invention has been described, disclosed, illustrated and shown in various terms of certain embodiments or modifications which it has presumed in practice, the scope of the invention is not intended to be, nor should it be deemed to be, limited thereby and such other modifications or embodiments as may be suggested by the teachings herein are particularly reserved especially as they fall within the breadth and scope of the claims here appended.