1. Field of the Invention
The present invention relates to an interior window frame assembly, and more particularly to an aesthetically pleasing interior window frame assembly for anchoring an interior window shutter thereto.
2. Background and Related Art
Window coverings such as shades, blinds and shutters are commonly used to provide privacy in a room as well as to block or reduce incoming sunlight. Window shutters are particularly popular as they provide maximum privacy, versatility, durability and ease of use. Window shutters may be constructed from a variety of materials, although the most commonly used material is wood and/or composites, finished either with a traditional wood finish, paint or by a coating of plastic or other substance.
Regardless of the material used to construct window shutters, window shutters are typically heavier and more cumbersome than other types of window coverings. Accordingly, proper installation and use of durable supporting frames and hardware are critical to ensure that shutters do not detach upon repeated use.
Traditionally, wood or wood composite window frames have been implemented for this purpose. Although the type of wood used in frame construction may vary, wood frames are typically soft and bulky as they require a considerable amount of surface area to provide the degree of elasticity and strength needed to properly support the weight of an attached shutter. These characteristics make frame handling and installation difficult, and labor expensive.
Wood frames are especially difficult to implement where there is a preexisting window molding or irregularities in the dimensions of a window opening. Those skilled in the art have traditionally dealt with this problem by trimming and/or caulking a window frame to accommodate such irregularities. This solution, however, is both time consuming and inexact. Indeed, if a window frame is improperly trimmed or installed out of square with the window opening, it may not be able to support the weight of an attached window covering. Wood frames are also prone to warp, thus further compromising the frame's strength and squareness with respect to a window.
Further, a standard window frame that has become strained or deformed due to warping or improper positioning may fail to accommodate a standard size window covering. A window covering must then be customized to accommodate the proportions of the window frame. Alternatively, the window frame must be replaced, repositioned and/or re-secured as necessary to retain and support a standard window covering in square with the window opening.
These inherent characteristics and difficulties of window frame and shutter installation require considerable time and labor of even highly skilled carpenters. When a layman attempts shutter installation, window frame and shutter installation can be dangerous as well. Improper window frame and shutter installation, or use of materials in window framing that are inadequate to support the weight of a shutter may cause the shutter to detach, thereby increasing a likelihood of damage to property and/or personal injury.
Accordingly, what is needed is an aesthetically pleasing window frame assembly capable of easy installation by those with a minimum of carpentry knowledge. What is also needed is a lightweight, slim profile window frame assembly that may be easily implemented in connection with a preexisting window molding. Further what is needed is a window frame assembly that maintains squareness with a window over time. Finally what is needed is a window frame assembly that compensates for irregularities in the dimensions of the window opening such that the window frame may predictably and reliably accommodate a standard window covering.
The present invention overcomes the foregoing and other disadvantages of the prior art by providing a novel and improved window frame assembly.
The present invention is an aesthetically pleasing, slim profile window frame assembly that is capable of retaining a shutter. Specifically, the window frame assembly of the present invention comprises a core substrate coupled to a flange. Certain embodiments of the present invention comprise a core substrate having a thickness less than 5/16 inch (7.9 mm) and having, by volume, an elastic modulus greater than wood. A flange comprises a depth sufficient to retain a hinge attached to a window covering, such as a shutter. Certain embodiments of the present invention provide for a decorative covering to be coupled to the core substrate and/or flange such that a portion of the window frame assembly is thereby concealed. A decorative covering may comprise wood, wood veneer, plastic, cloth and/or paint. The improved strength per volume of the present invention facilitates shutter installation by a “do-it-yourself” homeowner or handyman as well as by a skilled carpenter.
An object of the present invention is to provide an aesthetically pleasing window frame assembly capable of easy installation by a person with a minimum of carpentry knowledge.
Another object of the present invention is to provide a lightweight, slim profile window frame assembly that may be easily implemented in connection with a preexisting window molding.
It is a further object of the present invention to provide a window frame assembly that maintains squareness with respect to a window opening upon installation and over time.
A further object of the present invention is to provide a window frame assembly that compensates for irregularities in the dimensions of the window opening such that the window frame assembly may predictably and reliably accommodate a standard window covering.
These and other features and advantages of the present invention will be set forth or will become more fully apparent in the description that follows. The features and advantages may be realized and obtained by means of the instruments and combinations particularly pointed out in the appended claims. Furthermore, the features and advantages of the invention may be learned by the practice of the invention or will be obvious from the description, as set forth hereinafter.
The foregoing and other objects and features of the present invention will become more fully apparent from the following description and appended claims, taken in conjunction with the accompanying drawings. Understanding that these drawings depict only typical embodiments of the invention and are, therefore, not to be considered limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings in which:
The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
As used in this specification, the term “window covering” refers to any shutter, blind, shade or any other window covering known to those in the art capable of being supported and/or retained by the window frame assembly described herein. The term “window jamb” refers to the supporting wall structure perpendicularly adjoining an outer edge of an installed window. The term “adjacent wall” indicates the supporting wall structure adjoining, generally at a substantially right angle, a window jamb at an edge opposite the edge adjacent a window. The terms “mounting hardware” and “hardware” refer to any hardware or combination of hardware capable of retaining the window frame assembly of the present invention against a window jamb or adjacent wall, including, but not limited to, screws, bolts, rivets, nails, staples, adhesives and cement. “Elasticity” refers to a property of a material in which strains or deformations are recoverable after an applied stress is removed. The term “modulus of elasticity” or “elastic modulus” is the ratio of stress to strain, measured in pounds per square inch (psi). Values corresponding to a modulus of elasticity, abbreviated herein as “E,” are given in terms of million psi. Thus, a board with a modulus of elasticity of 2,100,000 psi may be reported as 2.1 E.
The present invention comprises a window frame assembly to facilitate the installation of a window covering 14 to cover an interior window 2. Referring to
Referring now to
A slim profile core substrate 20 preferably comprises a high degree of elasticity to facilitate its ability to retain an interior window covering 14 over time. Indeed, a relatively inelastic substrate requires relatively greater mass to retain any given window covering 14. Although most presently known window frame assemblies are made of wood, wood is not preferred for use in the present invention due to its characteristically low elasticity. An elastic modulus value for wood varies according to the species of wood. For example, Eastern Red Cedar is very soft softwood having an elastic modulus of 0.88 E. Pignut Hickory, on the other hand, is one of the strongest hardwoods, having an elastic modulus of 2.26 E. As one particularly desirable feature of the window frame assembly of the present invention is its slim profile, the core substrate of the present invention 20 comprises an elastic modulus greater than wood, preferably greater than 2.3 E. In this manner, the core substrate 20 of the present invention may comprise a thickness of less than 5/16 inch without compromising its structural integrity or the security of the interior window covering 14 thereby retained.
Referring now to
Referring now to
Like the embodiment of the present invention depicted as
Referring now to
Referring now to
Alternatively, a decorative covering 28 may be retained against a core substrate 20 by traditional fastening means, including but not limited to mounting hardware and/or any other fastening means known to those in the art. A decorative covering 28 may further employ a channel 44 within its underside surface to accommodate any portion of a screw or other hardware that may project from the wall subsequent to its use in securing a core substrate 20 in place.
In addition, a decorative covering 28 may comprise a plurality of interlocking components. By way of example and not limitation, the decorative covering 28 may comprise a frame base 38 and a concealing strip 40, where the frame base 38 may further comprise a groove configured to retain a tongue of the concealing strip 40. When the concealing strip 40 is properly disposed into the frame base 38, the two components form a locking tongue and groove junction, thereby concealing any hardware used to affix the decorative covering 28 to an adjacent wall 8. Further, where the frame base 38 is properly positioned in relation to a core substrate 20, a screw or other mounting hardware known to those in the art may be driven through both the frame base 38 and the core substrate 20 to affix both to an adjacent wall 8. A concealing strip 40 may then be disposed into the frame base 38 to conceal such screw or other mounting hardware.
Referring now to
According to one aspect of the embodiment of the present invention depicted by
Referring to
In selected embodiments, a decorative covering 28 comprises deformable plastic. According to this embodiment of the present invention, an edge of a plastic strip 50 attaches to an externally exposed surface of the flange 26 at a point beyond the common edge 12. The plastic strip 50 may be provided having a width sufficient to enable the plastic strip 50 to be substantially retained in either a flexed or relaxed state between the flange 26 and a window molding 10 to substantially conceal a uniform or non-uniform gap otherwise existing therebetween.
Referring now to
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Referring to
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