1. Field of the Invention
The present invention relates to a shade or screen assembly for fenestrations, including windows and skylights.
2. Description of Prior Art and Related Information
Window shades in the prior art typically employ lift cords to enable a user to raise and lower the shades as desired. Conventional lift cords are usually exposed to physical since they are intended to be accessed by the user. However, such exposed cords have posed child hazards in the recent past as these cords can cause children to get trapped, and particularly choked.
Therefore, a need has arisen to provide window treatments, particularly those having shades, without exposing any cords.
The present invention provides structures and methods which overcome the deficiencies in the prior art.
In one aspect, a safety window shade apparatus is provided. The apparatus comprises a first front shade and a second rear shade. The first shade has a first display side, a first inward side and a first retaining mechanism. The second shade is disposed adjacent to the first inward side of the first shade. The second shade comprises a second retaining mechanism. A dual channeled coupler couples the first shade to the second shade. The coupler comprises a first channel configured to receive the first retaining mechanism and a second channel configured to receive the second retaining mechanism. In the preferred apparatus, no portion of a cord is disposed anywhere other than in between the first fabric and the second fabric.
The first shade may comprise a Roman shade. The second shade may comprise a cellular shade. The first channel preferably comprises a first C-channel, and the second channel preferably comprises a second C-channel. The second retaining mechanism comprises a cylindrical shaft. The first shade may comprise separate segments, where the first retaining member comprises a pair of separate transverse rigid strips, each strip coupled to a corresponding segment.
The first shade may also comprise a natural woven shade. Where the first shade comprises a natural woven shade, the first retaining mechanism may comprise a shaft configured to be received in the first channel, and a ring coupled to the shaft and the natural woven shade.
The apparatus further comprises a head rail, and a cordless lifting mechanism housed in the head rail and configured to facilitate the lifting and lowering of the first and second fabrics. The apparatus further comprises a bottom rail coupled to a first bottom end of the first fabric and to a second bottom end of the second fabric. The apparatus further comprises a cord extending through one or more holes in the second shade and coupled to the bottom rail.
In another aspect, a safety window shade apparatus comprises a first front shade, a second rear shade, and a double-C coupler. The first front shade comprises a first display side, a first inward side, a first retaining mechanism and a first perimeter. The second rear shade is disposed adjacent to the first inward side of the first fabric. The second fabric comprises a second retaining mechanism and a second perimeter. The first perimeter and second perimeter are generally aligned to form a collective perimeter.
The double-C coupler comprises a first C-channel configured to receive the first retaining mechanism, and a second C-channel configured to receive the second retaining mechanism. A lifting cord is disposed entirely between the first fabric and the second fabric. Thus, the cord has no portions exposed beyond first perimeter or second perimeter.
The first shade may comprise a Roman shade. The second shade may comprise a cellular shade. If the first shade comprises separate segments, the first retaining mechanism may comprise a pair of separate transverse rigid strips, each strip coupled to a corresponding segment.
If the first shade comprises a natural woven shade, the first retaining mechanism may comprise a shaft configured to be received in the first channel, and a ring coupled to the shaft and the natural woven shade. The second retaining mechanism may comprise a shaft
The apparatus further comprises a head rail, and a cordless lifting mechanism housed in the head rail and configured to facilitate the lifting and lowering of the first and second fabrics. The apparatus may further comprises a bottom rail coupled to a first bottom end of the first fabric and to a second bottom end of the second fabric. The cord is coupled to the bottom rail.
In a further aspect, a method of manufacturing a window shade assembly is provided. The method comprises providing a first shade, providing a second shade, coupling the first shade to a dual open-sided coupler, coupling the second shade to the dual open-sided coupler, disposing a lift cord entirely in between the first and second shades, and preventing any portion of the lift cord from being exposed and accessible to physical contact.
The method further comprises housing a cordless lifting mechanism within a head rail, and coupling the first shade and the second shade to the head rail.
The step of coupling the first shade to the dual open-sided coupler comprises disposing in a first channel of the coupler a shaft coupled to the first shade. The step of coupling the first shade to the dual open-sided coupler comprises coupling a ring to the shaft and the first shade.
The step of providing the first shade comprises forming fabric segments, each segment having a top retaining strip and a bottom retaining strip. The step of coupling the first shade to the dual open-sided coupler comprises disposing a top retaining strip and a bottom retaining strip of adjacent segments into a first C-channel of the coupler.
The step of coupling the second shade to the dual open-sided coupler comprises disposing in a second channel of the coupler a shaft coupled to the second shade.
The invention and its various embodiments can now be better understood by turning to the following detailed description wherein illustrated embodiments are described. It is to be expressly understood that the illustrated embodiments are set forth as examples and not by way of limitations on the invention as ultimately defined in the claims.
Throughout the specification, positional and directional terms below refer to the following:
While the preferred window shade apparatuses described herein may employ cords, these preferred embodiments may be described as “cordless” in the sense that none of the employed cords are exposed.
In
The apparatus 10 comprises dual shades, namely, a first front shade 20 and a second rear shade 22. In the first preferred embodiment, the first shade 20 may comprise a Roman fabric shade while the second shade 22 may comprise a cellular shade. It is to be expressly understood that each of the dual shades may comprise any kind of shade material, which may or may not be composed of fabrics.
The dual shades 20, 22 are disposed in a back-to-back arrangement. Thus, the front shade 20 is disposed adjacent to an inward, or interior, side of the rear shade 22, and the rear shade 22 is disposed adjacent to an inward, or interior, side of the front shade 20. The dual shades 20, 22 are coupled to each other with a preferred coupler, or connector, 24 as described in further detail below. The first shade 20 includes a first pair of side edges 26 which are preferably aligned with a second pair of side edges 28 of the second shade 22. Accordingly, the apparatus 10 includes a collective shade perimeter 31 collectively defined by the aligned side edges 26, 28 and a bottom rail 33. In the preferred embodiment, no portion of any cords employed in the apparatus 10 extends or lies exposed beyond this shade perimeter 31.
It is within the scope of the invention to omit the bottom rail 33, in which case a bottom portion of the front shade 20 would be aligned and coupled to a bottom portion of the rear shade 22. In such an embodiment, the collective perimeter, which defines the boundaries in which any cords would be disposed, would be defined by the aligned pairs of side edges of the front and rear shades, and the coupled bottom portions.
As described in further detail below, the dual shades 20, 22 hang or extend from a head rail 60. In unison, the dual shades 20, 22 are thus drawn away from or retracted toward the head rail 60 along the axis A.
In the first preferred embodiment of the apparatus 10, the front shade 20 comprises separate segments 35. As shown more clearly in the close-up view of
The rear shade 22 includes a second plurality of rear retaining mechanisms 44, each rear retaining mechanism 44 preferably comprising a cylindrical shaft 44 which may be coupled to, formed integrally with, a front pleated section 45 of the cellular shade 22.
A top portion 68 of the rear shade 22 is coupled to the head rail 60. The top portion 68 may comprise an inner strip 70 and an outer strip 72, both composed of a stiffener material and housed within a rear chamber 74 of the head rail 60. A first, inner closure support 76 helps retain the inner strip 70 while a second, outer closure support 78 helps retain the outer strip 72.
Any one of a variety of lifting mechanisms may be employed and housed within the head rail 60. The lifting mechanism 80 preferably comprises a device that does not require the user to directly engage or contact any external cords in order to lower or retract the shades. Accordingly, the lifting mechanism 80 preferably comprises a “cordless lifting mechanism” which operates with constant force springs. The lifting mechanism 80 employs at least one lift cord 82 extending from the bottom of the mechanism 80 through a bottom opening in the head rail 60. As shown in
Referring back to
The rear channel 54 receives the rear retaining mechanism 44 which may comprise a cylindrical shaft 44 coupled to the rear shade 22. In the preferred embodiment, the rear cylindrical shaft 44 is enclosed within a pocket of fabric formed in the front, pleated section 45 of the rear shade 22, the pocket of fabric also enclosed within the rear channel 54.
The front channel 48 of the coupler 24 receives the first retaining mechanism 42 of the front shade 20 which, in this preferred embodiment, comprises a pair of adjacent strips, namely, the bottom strip 39-1 of an upper segment 35-1 and a top strip 39-2 of a lower, adjacent segment 35-2.
It will be appreciated that the apparatus 10 may comprise multiple couplers 24 vertically spaced apart (i.e., along the axis of the shades 20, 22), such as with the illustrated embodiment in
To lower the dual shades 20, 22 in unison, the bottom rail 33 is pulled. The bottom rail 33 coupled to the lifting cords 82 will pull the cords down and roll the cords out of the drum of the lifting mechanism 80. Cells 88 of the rear cellular shade 22 will open up and hobbles 35 of the front Roman shade 20 will stretch out until the whole shade duo 20, 22 fully extends, as shown in
Therefore, the preferred embodiment of the apparatus 10 operates by enabling the user to draw or retract the shades 20, 22 without having to contact any cords, which are hidden from view and inaccessible anyways. Therefore, a cordless method of operating the apparatus 10 is provided whereby the user need only engage the bottom rail 33 to draw or retract the shades 20, 22.
The coupler 24c is formed with transverse slots 96 to receive the corresponding ring connectors 94 and enable the ring connectors 94 to slide horizontally. This enables the front shade 20c to move horizontally, within a limited scope, with respect to the rear shade 22c which comprises a cellular material.
In step 230, the front shade is coupled to the rear shade using a dual channeled coupler, or connector. Step 230 comprises disposing a front securing mechanism of the front shade in a front channel of the coupler and disposing a rear securing mechanism in a rear channel of the coupler. Thus, each coupler is connected to a pair of aligned front and rear securing mechanisms.
Where the front shade comprises a natural woven shade, step 230 may comprise disposing a shaft in the front channel of the coupler and attaching a ring connector to the cylindrical shaft and a rear side of the natural woven shade. Slots are formed in the front tube of the coupler to enable the ring connector to attach to the cylindrical shaft located within the front channel.
Step 240 comprises providing a head rail which houses a lift mechanism. The lift mechanism may comprise a cordless lift mechanism.
Step 250 comprises coupling top portions of the front shade and the rear shade to the head rail. The top portions of the front and rear shade may be formed with stiffened materials which can reside in one or more chambers or openings formed in the head rail.
Step 260 comprises coupling a bottom rail to bottom portions of the front and rear shades. Thus, step 260 help define the bottom border of the overall perimeter between the front and rear shades.
Step 270 comprises concealing any employed lift cords within the perimeter of the dual shades and the bottom rail such that no portion of any cord is exposed or accessible. In other words, no portion of any employed cord would be accessible for direct contact or tangling. Step 270 may comprise disposing a lift cord extending from the head rail downward through the coupled front and rear shades to the bottom rail without exposing any portion of the lift cord beyond the perimeter of the dual shades. Thus, step 270 comprises disposing any excess length of the lift cord into the bottom rail.
Step 320 comprises retracting the front and rear shade in tandem by pushing up the bottom rail without directly contacting any cords. Step 320 may comprise retracting a front Roman shade and a rear cellular shade in unison.
The method 300 further comprises the step 330 of viewing a rear side of the dual shade apparatus, whether drawn down or retracted, and not seeing any visible cords.
In all the preferred embodiments, it will be appreciated that the rear cellular shade enhances the overall appearance of the shade apparatus by presenting a more aesthetically pleasing interior view than simply looking directly at the rear of a Roman shade. Forming the apparatus with a rear cellular shade also provides an additional benefit of heat insulation.
Many alterations and modifications may be made by those having ordinary skill in the art without departing from the spirit and scope of the invention. Therefore, it must be understood that the illustrated embodiments have been set forth only for the purposes of examples and that they should not be taken as limiting the invention as defined by the following claims. For example, notwithstanding the fact that the elements of a claim are set forth below in a certain combination, it must be expressly understood that the invention includes other combinations of fewer, more or different elements, which are disclosed in above even when not initially claimed in such combinations.
The words used in this specification to describe the invention and its various embodiments are to be understood not only in the sense of their commonly defined meanings, but to include by special definition in this specification the generic structure, material or acts of which they represent a single species.
The definitions of the words or elements of the following claims are, therefore, defined in this specification to not only include the combination of elements which are literally set forth. In this sense it is therefore contemplated that an equivalent substitution of two or more elements may be made for any one of the elements in the claims below or that a single element may be substituted for two or more elements in a claim. Although elements may be described above as acting in certain combinations and even initially claimed as such, it is to be expressly understood that one or more elements from a claimed combination can in some cases be excised from the combination and that the claimed combination may be directed to a subcombination or variation of a subcombination.
Insubstantial changes from the claimed subject matter as viewed by a person with ordinary skill in the art, now known or later devised, are expressly contemplated as being equivalently within the scope of the claims. Therefore, obvious substitutions now or later known to one with ordinary skill in the art are defined to be within the scope of the defined elements.
The claims are thus to be understood to include what is specifically illustrated and described above, what is conceptually equivalent, what can be obviously substituted and also what incorporates the essential idea of the invention.
This application claims priority from U.S. Provisional Patent Application Ser. No. 61/372,033 filed on Aug. 9, 2010 and entitled WINDOW SAFETY SHADE CONSISTING OF ROMAN SHADE AND CELLULAR SHADE, the disclosure of which is incorporated herein by reference in its entirety.
Number | Date | Country | |
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61372033 | Aug 2010 | US |