Patent Application
20210123291
The present disclosure relates generally to designs for fenestration units and, more specifically, to designs for integrated sash units. The disclosure also relates to methods of assembling fenestration units and integrated sash units.
Basic window assemblies traditionally include a frame (the framework that surrounds and supports the entire window system, comprised of the head, jamb and sill) and one or more sashes (a fixed or movable part of a window made up of the vertical and horizontal frame that holds the glazing, or glass panels). Often times, for enhanced thermal performance, the glazing is in the form of an insulated glass unit, or IG unit for short. An IG unit includes two or more sheets, or panes of glazing separated by one or more spacers with sealed space(s) between the two or more sheets of glazing. Air, inert gases, or even vacuum may be present in the sealed space(s) to enhance thermal performance. The IG unit is assembled to the sash to provide a fixed or venting (e.g., double hung or casement) arrangement. Assembly of such fenestration units can be time consuming, expensive, and inefficient. Various technological improvements addressing such shortcomings remain unrealized.
Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that relate to improved insulating glass/sash assemblies for fenestration units, including windows and doors.
Some examples relate to an integrated sash unit comprising a plurality of vapor barrier sealant systems; a first sash portion; a second sash portion coupled to the first sash portion by one or more of the vapor barrier sealant systems; and a plurality of glazing panels coupled to the first and second sash portions by one or more of the vapor barrier sealant systems.
Some examples relate to an integrated sash unit comprising a first sash portion forming a first body portion and a first receiving wall extending inwardly from the first body portion, the first receiving wall having a first inner wall surface and a first peripheral wall surface opposing the first inner wall surface, and the first body portion defining a first receiving surface and a first coupling surface and a first body peripheral surface opposite the first receiving surface and the first coupling surface; a second sash portion forming a second body portion and a second receiving wall extending inwardly from the second body portion, the second receiving wall having a second inner wall surface and a second peripheral wall surface opposite the second inner wall surface, and the second body portion defining a second receiving surface and a second coupling surface and a second body peripheral surface, the first coupling surface of the first sash portion being coupled to the second coupling surface of the second sash portion; and a plurality of glazing panels including, a first glazing panel supported by and coupled to the first inner wall surface of the first sash portion without being coupled to the second sash portion; and a second glazing panel supported by and coupled to the second inner wall surface of the second sash portion without being coupled to the first sash portion.
Still other examples relate to a method of assembling an integrated sash unit, the method comprising attaching a first glazing panel to a first inner wall surface of a first sash portion; attaching a second glazing panel to a second inner wall surface of a second sash portion; positioning the second sash portion adjacent the first sash portion such that the first glazing panel and the second glazing panel are spaced from one another; and adhering a first coupling surface of the first sash portion to a second coupling surface of the second sash portion.
The foregoing Examples are just that and should not be read to limit or otherwise narrow the scope of any of the inventive concepts otherwise provided by the instant disclosure. While multiple examples are disclosed, still other embodiments will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative examples. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature rather than restrictive in nature.
The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments, and together with the description serve to explain the principles of the disclosure.
Persons skilled in the art will readily appreciate that various aspects of the present disclosure can be realized by any number of methods and apparatus configured to perform the intended functions. It should also be noted that the accompanying drawing figures referred to herein are not necessarily drawn to scale, but may be exaggerated to illustrate various aspects of the present disclosure, and in that regard, the drawing figures should not be construed as limiting.
As the terms are used herein with respect to ranges of measurements “about” and “approximately” may be used, interchangeably, to refer to a measurement that includes the stated measurement and that also includes any measurements that are reasonably close to the stated measurement, but that may differ by a reasonably small amount such as will be understood, and readily ascertained, by individuals having ordinary skill in the relevant arts to be attributable to measurement error, differences in measurement and/or manufacturing equipment calibration, human error in reading and/or setting measurements, adjustments made to optimize performance and/or structural parameters in view of differences in measurements associated with other components, particular implementation scenarios, imprecise adjustment and/or manipulation of objects by a person or machine, and/or the like.
This disclosure is not meant to be read in a restrictive manner. For example, the terminology used in the application should be read broadly in the context of the meaning those in the field would attribute such terminology.
With respect terminology of inexactitude, the terms “about” and “approximately” may be used, interchangeably, to refer to a measurement that includes the stated measurement and that also includes any measurements that are reasonably close to the stated measurement. Measurements that are reasonably close to the stated measurement deviate from the stated measurement by a reasonably small amount as understood and readily ascertained by individuals having ordinary skill in the relevant arts. Such deviations may be attributable to measurement error or minor adjustments made to optimize performance, for example. In the event it is determined that individuals having ordinary skill in the relevant arts would not readily ascertain values for such reasonably small differences, the terms “about” and “approximately” can be understood to mean plus or minus 10% of the stated value.
Certain terminology is used herein for convenience only. For example, words such as “top”, “bottom”, “upper,” “lower,” “left,” “right,” “horizontal,” “vertical,” “upward,” and “downward” merely describe the configuration shown in the figures or the orientation of a part in the installed position. Indeed, the referenced components may be oriented in any direction. Similarly, throughout this disclosure, where a process or method is shown or described, the method may be performed in any order or simultaneously, unless it is clear from the context that the method depends on certain actions being performed first.
Various embodiments disclosed herein relate generally to designs for fenestration units and, more specifically, to integrated sash units that are versatile, customizable, and easy to assemble and install. Various aspects relate to methods for assembling the integrated sash units and/or associated fenestration units. For reference, although the term “sash” is utilized throughout this disclosure, it should be understood that the term is meant to be inclusive of both doors and windows, and the term “sash” is meant to be applicable to components such as both fixed and movable window and door sashes and panels, for example.
Although a variety of additional or alternative advantages will be apparent, some embodiments address one or more of a fiberglass or other composite shell sash system that approximates the coefficient of thermal expansion (CTE) of glass, has relative high service temperature and thus color options, incorporates effective moisture barrier(s) into the assembly, is gas-filled (e.g., with air to avoid potential Argon loss), and/or may incorporate one or more desiccant systems to permit pressure equalization and moisture reduction within the assembly. Various assemblies permit the use of any combination of lights, panels, or glazing, has a clam-shell design that permits mixing and matching of interior vs. exterior colors and treatments, and/or is amenable to in-line foam pultrusion assembly to achieve efficient manufacture at desired outer wall or skin tolerances.
The first sash portion 220 includes a first shell 220a and a first inner core 220b. In some examples, the first shell 220a forms a single, interior space or cavity. The first inner core 220b may be a foam material filling the entire interior space or, in some instances, substantially all of the interior space (e.g., greater than 90%, 95% or more). The first inner core 220b is arranged within the first shell 220a. In some instances, the first shell 220a may be a thin, fiberglass layer. For example, the first sash portion 220 may be a pultruded portion.
Like the first sash portion 220, the second sash portion 230 includes a second shell 230a and a second inner core 230b. In some examples, the second shell 230a forms a single, interior space or cavity, and the second inner core 230b may be a foam material filling the entire interior space or, in some instances, substantially all of the interior space (e.g., greater than 90%, 95% or more). The first and second sash portions 220, 230 may be either symmetrical or asymmetrical depending on a variety of factors, including the number of glazing panels 130 desired in the first and second sash portions 220, 230 and the respective appearance of the interior versus exterior sides. For example, as shown, the first and second sash portions 220, 230 are substantially identical in size and shape yet opposite in orientation to the first sash portion 220. In other instances, however, the first and second sash portions 220, 230 vary in size, shape, materials, and/or appearance.
As shown in
Though the integrated sash unit 200 is described with reference to four glazing panels (e.g., the first and third glazing panels 240, 242 associated with the first sash portion 220 and the second and fourth glazing panels 260, 262 associated with the second sash portion 230), the integrated sash unit 200 can include any number of glazing panels as desired. For example, the integrated sash unit 200 could include two glazing panels, three glazing panels, five glazing panels, and so forth.
Like the first sash portion 220, the second sash portion 230 includes a second body portion 232 and a second receiving wall 234. The second receiving wall 234 is a portion of the second sash portion 230 that extends upward (e.g., in the direction of the glazing panels 130) from the second body portion 232. The second receiving wall 234 includes a second inner wall surface 234a and a second peripheral wall surface 234b opposite the second inner wall surface 234a. The second body portion 232 defines a second receiving surface 232a configured to receive or engage with the glazing panels 130, a second coupling surface 232b configured to engage with the first sash portion 220, and a second peripheral surface 232c located opposite the second coupling surface 232b and the second receiving surface 232a to define the sash. The second sash portion 230 can have the same or similar dimensions to the first sash portion 220. For example, the second inner wall surface 234a may have a length X2, the second receiving surface 232a may have a length Y2, and the second coupling surface 232b may have a length Z2 as shown in
As discussed herein, the first and second sash portions 220, 230 may be substantially symmetrical to one another or may be asymmetrical as desired. In some instances, the first and second sash portions 220, 230 are mirror images of one another, as shown in
In some instances, the first and second sash portions 220, 230 may be formed of different materials. For example, the first and second inner cores 220b, 230b may include different types of foam and/or other insulating or structural materials. In still other examples, the first and second sash portions 220, 230 may be made of single structural material, such as fiberglass. Additionally, the first and/or second sash portions 220, 230 may also be free of a core material (e.g., substantially hollow) according to some examples. The first and second shells 220a, 230a can also include different materials. For example, the first shell 220a may be formed of a material suitable for the exterior of the building (e.g., the exterior side 114). For example, the material may have increased weather resistance, be designed for specific temperature ranges, or have a color compatible with the exterior of the respective building. The second shell 230a may be formed of a material suitable for the interior of the building (e.g., the interior side 112). In some instances, the first and second shells 220a, 230a may include different color schemes, patterns, textures, or other various characteristics specific to the exterior versus the interior of the building.
As shown in
In some instances, the integrated sash unit 200 includes an overall vapor barrier sealant system for securing the various components together in a water, and water vapor tight arrangement. As generally shown, the integrated sash unit 200 includes:
a first vapor barrier sealant system 270a (e.g., a combined vapor barrier and sealant/adhesive material or discrete sealant/adhesive and vapor barrier material layers) arranged along a portion of or all of the length X1 between the first glazing panel 240 and the first wall surface 224a of the first receiving wall 224;
a second vapor barrier sealant system 270b arranged between the first glazing panel 240 and the first sash portion 220 (e.g., a combined vapor barrier and sealant/adhesive material or discrete sealant/adhesive and vapor barrier material layers) arranged along a portion of or all of the length X2 between the second glazing panel 260 and the second inner wall surface 234a of the second receiving walls 234;
a third vapor barrier sealant system 270c (e.g., a combined vapor barrier and sealant/adhesive material or discrete sealant/adhesive and vapor barrier material layers) arranged along a portion of or all of the length Y1 between the first receiving surface 222a and one or more of the glazing panels 130;
a fourth vapor barrier sealant system 270d (e.g., a combined vapor barrier and adhesive sealant material or discrete sealant/adhesive and vapor barrier material layers) arranged along a portion of or all of the length Y2 between the second receiving surface 232a and one or more of the glazing panels 130;
a fifth vapor barrier sealant system 270e (e.g., a combined vapor barrier and sealant/adhesive material or discrete sealant/adhesive and vapor barrier material layers) arranged along a portion of some or all of the length Z2 between the first coupling surface 222b and the second coupling surface 232b;
a structural adhesive system 270f (e.g., a structural adhesive/sealant, a combined vapor barrier and sealant/adhesive material or discrete sealant/adhesive and vapor barrier material layers) may also be arranged toward the perimeter of the first coupling surface 222b and the second coupling surface 232b to provide structural support and/or additional sealing to the integrated sash unit 200; and
first and second structural adhesive systems 272a, 272b (e.g., a sealant/adhesive material) arranged along an interior portion of some or all of the lengths X1, X2 interior to the first and second interior barrier sealant systems 270a, 270b. The first and second structural adhesive systems 272a, 272b may provide additional structural support and affixation of the glazing panels 240, 260 to the sash portions 220, 230.
Returning to
The various vapor barrier sealant systems help provide a moisture barrier between the glazing panels and the sash, for example, to prevent or substantially inhibit moisture from the surrounding atmosphere from diffusing through the first and second sash portions 220, 230 into the space between glazing panels 130 (
The vapor barrier sealant systems can include any variety of materials capable of providing a seal and a vapor barrier between the glazing panels 130 and the sash to help prevent moisture from entering the integrated sash unit 200. An example of a suitable vapor barrier material includes metalized laminate films, an example of a suitable sealant/adhesive material includes polyisobutylene, and an example of suitable combined vapor barrier/sealant/adhesive material includes that sold under the tradename “ISOMELT-R” reactive hot-melt by Kommerling.
In some instances, the first and second sash portions 220, 230 have a coefficient of thermal expansion approximately equal to a coefficient of thermal expansion of the glazing panels 130. For example, in instances where the glazing panels are made of glass, the sash portions 220, 230 may have a coefficient of thermal expansion from about 8 to about 10 microstrain*K−1. In other instances, the sash portions 220, 230 may have a higher or lower coefficient of thermal expansion depending upon the material of the glazing panels 130. For example, the sash portions 220, 230 may have a coefficient of thermal expansion that is within 10×, 8×, 6×, 2×, 1× or any range or value between the recited ranges of the coefficient of thermal expansion of the glazing panels 130. In some preferred designs, the coefficient of thermal expansion of the sash portions 220, 230 is 2× or less than the coefficient of thermal expansion of the glazing panels 130 and more than about 0.5× the coefficient of thermal expansion of the glazing panels 130.
In some instances, the thermal conductivity of the integrated sash unit 200 is substantially the same as the thermal conductivity through the portion of the fenestration unit 100 corresponding to the glazing panels 130. In another example, the integrated sash unit 200 may have an R-value of approximately 10 ft2·F·h/(BTU) (1.76 m2·K/(W)).
In some instances, the spacing member 290 can be a single, monolithic unit, while in other instances, the spacing member 290 may include more than one part (e.g., a first spacing portion associated with the first sash portion 220 and a second spacing portion associated with the second sash portion 230). The spacing member 290 is generally sufficiently stiff and rigid to support the glazing panels 130 in place. In some instances, the spacing member 290 can be relatively thick and have grooves for supporting the glazing panels 130. In other instances, the spacing member 290 may be a thin layer that has, for example, ridges capable of supporting the glazing panels 130.
The spacing member 290 may be coupled to the first and second sash portions 220, 230 (as well as the glazing panels 130 as desired) with a sealant, an adhesive, or a friction fit, for example. In some instances, a desiccant may be arranged with the spacing member 290, or separate from the spacing member 290, to help prevent moisture from accumulating in the spaces between glazing panels 130. For example, the desiccant may be in the form of a desiccant matrix, desiccant beads, or any other suitable desiccant known to those skilled in the art.
The various components of the integrated sash unit 200 are optionally secured to one another using the vapor barrier sealant systems previously described. The fenestration unit and/or integrated sash unit 200 described herein can be assembled in a variety of sequences and using a variety of tools. In some instances, the first glazing panel 240 is first attached to the first inner wall surface 224a of the first sash portion 220. The second glazing panel 260 is then attached to the second inner wall surface 234a of the second sash portion 230. The second sash portion 230 is then positioned adjacent to the first sash portion 220 so that the first and second glazing panels 240, 260 are spaced from one another. The first coupling surface 222b of the first sash portion 220 is then adhered to the second coupling surface 232b of the second sash portion 230.
The first and second coupling surfaces 224b, 234b can be adhered to one another with the barrier sealant systems previously described or using a separate sealant, adhesive, thermal bonding/welding, ultrasonic bonding/welding, or any of a variety of other fastening means as desired. As previously referenced, in some instances, the first and second coupling surfaces 224b, 234b are adhered with a bonding material such as an adhesive that has both structural adhesive properties and moisture/vapor barrier properties, or a moisture vapor barrier material such as polyisobutylene in combination with a separate structural adhesive material such as silicone or polyurethane.
The corners of each of the sash members 206 may be coupled at a miter cut with the optional set of corner vapor barrier sealant systems 270x provided at each of the corners and/or any of a variety of heat seals, adhesives, mechanical fasteners, corner inserts, or any of a variety of coupling mechanisms and sealants introduced at the surfaces, including between the corners between the sash members 206. Although miter cut corners, or miter joints are contemplated, any of a variety of corner attachments are contemplated including butt joints and others.
In some instances, the third glazing panel 242 is arranged with the first sash portion 220 and the fourth glazing panel 262 is arranged with the second sash portion 230 before the first and second sash portions 220, 230 are secured together. In some instances, the spacing member 290 is arranged on the first and second sash portions 220, 230 before the glazing panels 130 are installed. Each of the glazing panels 130 are then arranged on the spacing member 290 to separate the glazing panels 130 from one another, as described herein. Although various examples have been provided with four glazing panels 130 (e.g., two outer panels and two intermediate panels), it should be understood that any number of intermediate panels is contemplated (e.g., including zero) and may be implemented according to the principles described herein.
Once the integrated sash unit 200 is assembled, the integrated sash unit 200 is arranged within the frame 110 and coupled to at least a portion of the frame 110 with, for example, a sealant, an adhesive, or any other variety of coupling tools such as nails, screws, bolts, and fasteners. In various examples, the integrated sash unit 200 may be fixed within the frame 110 (e.g., the integrated sash unit 200 is stationary within the frame 110 and is not configured to slide), or the integrated sash unit 200 may be configured to swing, slide, or otherwise move relative to the frame 110 for venting purposes (e.g., as in the case of, for example, a double hung window or casement window).
Persons skilled in the art will readily appreciate that various aspects of the present disclosure can be realized by any number of methods and apparatus configured to perform the intended functions. It should also be noted that the accompanying drawing figures referred to herein are not necessarily drawn to scale, but may be exaggerated to illustrate various aspects of the present disclosure, and in that regard, the drawing figures should not be construed as limiting.
The invention of this application has been described above both generically and with regard to specific embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments without departing from the scope of the disclosure. Thus, it is intended that the embodiments cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
The present application claims the benefit of U.S. Provisional Patent Application No. 62/927,021 filed Oct. 28, 2019, which is incorporated herein by reference in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 62927021 | Oct 2019 | US |
