Patent Application
20090266497
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1. Field of the Invention
This invention relates generally to roll-up shutters for storm and hurricane and security protection, and more particularly to a uniquely configured shutter slat assembly for storm shutters which includes a transparent viewing and light-transmitting portion formed therethrough.
2. Description of Related Art
Roll-up Storm shutters are well known and afford a great deal of window and interior protection from storms, hurricanes and from breaking and entering into a home or building through otherwise unprotected windows and doors. These roll-up shutters are formed of a plurality of interlocking horizontally extending slats which have limited pivotal motion therebetween and are typically arcuately configured in cross section to facilitate the roll-up storage of the storm shutters when not in use.
A significant drawback to such roll-up shutters is that they are traditionally formed of opaque plastic or metal material which does not permit light transmission therethrough. Therefore, when the storm shutters are deployed, the interior of the house or building is darkened substantially and the occupants, if any, cannot easily view the outside of the home or building through the closed and protected windows and doors.
A number of prior art devices related to storm shutters are known to applicant and are adapted to provide some light transmission features as well as to facilitate the exterior viewing by a person within the building as follows:
U.S. Pat. No. 6,263,943 to Lai teaches a modular rolling shutter comprised of vertically alternating rows of buckles and slats. Each slat is linked with the lower and upper buckles, allowing limited movement of the slats and buckles so that the modular shutter may be rolled and unrolled along tracks. The slats may be made of a transparent material allowing visibility without sacrificing weather resistance or security. U.S. Pat. No. 6,041,847 also to Lai discloses a building block for a rolling shutter made of plastic sheets.
A rolling door construction which is easily assembled and which includes a plurality of light-transmitting panels is taught in U.S. Pat. No. 4,332,287 to Stolpe. Snarli teaches a rollable or foldable shutter device for protecting, closing off or partitioning of areas, such as window areas in U.S. Pat. No. 5,456,305. The shutter is provided with panels made from a transparent material, such as polycarbonate, and hinges which are mounted so that it can be folded or rolled up. The hinges and the panels may be made in one piece. When the device is used, at least a part of the transparency remains.
U.S. Pat. No. 4,345,635 to Solomon discloses a rolling protective gate for store fronts or the like which is formed of a series of horizontally-extending transparent slats interconnected and articulated by a series of horizontally-extending metal rods. The transparent slats and metal rods are elongated, and each extends the full width of the building front access opening in which the rolling gate is mounted.
In U.S. Patent Application Publication No. US 2007/0175117, Brown teaches a storm shutter look out portal for storm shutters comprised of an assembly with an interior frame and an exterior frame enclosing at least one transparent panel in between, and also including a cover associated with the interior frame that is moveable from a closed position to an open position where the cover, the interior frame and the exterior frame, are all fabricated from materials that are resistant to the impacts anticipated during a hurricane or tropical storm.
Expired U.S. Pat. No. 4,690,193 to Morrison et al. discloses a rolling shutter characterized by an array of edge-adjacent, parallel shutter slats and full shutter width, clear shutter segments or links articulately interconnecting respective pairs of adjacent shutter slats. When spaced apart, the slats form therebetween a gap which exposes the clear link which permits passage of light over substantially the full extent of the gap. The clear links also provide a double hinge-like joint between adjacent slats.
Goldhaber teaches a protective enclosure for building openings such as windows and doorways wherein the protective enclosure comprises a peripheral frame member that circumscribes the openings and pivotally mounts a transparent shielding unit in U.S. Pat. No. 4,175,357.
A shutter with profiled strips made of transparent plastic is disclosed in U.S. Pat. No. 4,126,173 to Theuerkauff. U.S. Pat. No. 5,507,335 to Yu teaches a shutter with a plurality of slat units which have transparent portions through which an object behind the same can be viewed.
The present invention provides a still further improvement in the configuration of the shutter slat assembly for use in forming a storm shutter for roll-up storage and easy downward deployment. In this invention, an elongated viewing port is formed along each opaque metal or plastic slat which is covered and secured by a mating elongated transparent extruded or molded plastic panel slidably and lockably engaged within inwardly facing grooves formed along the edges of the slat.
The foregoing examples of the related art and limitations related therewith are intended to be illustrative and not exclusive. Other limitations of the related art will become apparent to those skilled in the art upon a reading of the specification and a study of the drawings.
This invention is directed to a shutter slat assembly for a storm shutter, the slat assembly including an elongated horizontally extending shutter slat having longitudinally extending formed edges configured to slidably, interlockingly connect with the next adjacent slat for limited pivotal movement between adjacent connected slats sufficient for rolled-up storage of the storm shutter. Each slat has a central port formed therethrough for viewing and light transmission through the port. An elongated transparent panel is also provided having a cross section similar to that of the slat and enlarged edge portions configured and spaced for dependent slidable engagement between and within inwardly facing grooves formed inwardly adjacent to the edges. The transparent panel covers the port while allowing a person to obtain a view and permit light transmission therethrough.
It is therefore an object of this invention to provide an improved shutter slat assembly for storm shutters which facilitates outward viewing therethrough and light transmission into the home or building when the storm shutter is deployed for protection.
Still another object of this invention is to provide a shutter slat for storm shutters which includes an easily assemblable two-part structure including a transparent panel which slidably engages into mating groove structure of the slat for economy and strength.
The following embodiments and aspects thereof are described and illustrated in conjunction with systems, tools and methods which are meant to be exemplary and illustrative and not limiting in scope. In various embodiments one or more of the above-described problems have been reduced or eliminated while other embodiments are directed to other improvements. In addition to the exemplary aspects and embodiments described above, further aspects and embodiments will become apparent by reference to the drawings and by study of the following descriptions.
Exemplary embodiments are illustrated in reference figures of the drawings. It is intended that the embodiments and figures disclosed herein are to be considered to be illustrative rather than limiting.
Referring now to the drawings, the invention is there shown generally at numeral 10 and, in
The shutter slat 12, again formed of extruded aluminum material, includes vertically oriented, outwardly facing edges 16 and 20. Edge 16 defines a channel 18 while edge 20 defines a hook structure which slidably, matably engages as shown in phantom in
The slat 12 includes an elongated central port 30 formed therethrough which is provided so that a person within a building may view the outside therethrough without having to elevate the storm shutter S. Moreover, the port 30 also provides for light transmission into the building when the shutter S is deployed to illuminate or light the inside of the home or building for those inside.
Also included with the slat assembly 10 is an elongated molded transparent panel 14 molded of polycarbonate material and having a central convex arcuate configuration which matably fits against the inner concave surface of the slat 12. The transparent panel 14 includes longitudinal edge enlargements 22 and 26 which are sized and spaced apart to snugly slidably engage within the grooves 36 and 38 when assembled in the direction of arrow A in
To prevent scratching of the outer convex arcuate surface of the transparent panel 14, a preferably continuous bead 32 is formed on the outer surface thereof having a shape which substantially matches and mates into the port 30. As the transparent panel 14 is slidably engaged in the direction of arrow A within grooves 36 and 38, the bead 32 rubs against the inner surface of the slat 12 until the bead 32 snappingly engages into and within port 30 so that, once the transparent panel 14 is thusly installed, removal is difficult at best to secure this arrangement. Any assembly marring only occurs on the crown of the bead 32.
To enhance the storm resistance and impact strength of the assembly 10, the molded transparent panel 14 includes one or more transverse strengthening ribs 34 which are positioned preferably adjacent the ends of the transparent panel 14 but also may be added transversely across the central portion thereof to span the central area of the port 30 for added impact strength in this location.
The important aspects of the present invention may also be incorporated into a shutter slat shown generally at numeral 40 absent the transparent panel 14 previously described. This slat 40 includes spaced double walls 42 and 46 for strength. However, the important aspects of the edge channel 48 and the edge hook 50, along with the inwardly facing or opposing grooves 52 and 54 which receive the edges of the transparent panel as previously described are provided. Moreover, this slat embodiment 40 also includes the port 56 for light transmission and outwardly viewing as previously described.
While a number of exemplary aspects and embodiments have been discussed above, those of skill in the art will recognize certain modifications, permeations and additions and subcombinations thereof. It is therefore intended that the following appended claims and claims hereinafter introduced are interpreted to include all such modifications, permeations, additions and subcombinations that are within their true spirit and scope.
