1. Field of the Invention
The subject invention relates to a glazing bead for engaging a fenestration article and a frame, and a method of producing the glazing bead.
2. Description of Related Art
Glazing beads are used in fenestration systems to engage a glass panel and a frame. The frame has rails and stiles arranged end-to-end to form a closed rectangular configuration. The rails and the stiles are disposed about a perimeter of the glass panel. Glazing beads are arranged end-to-end with each glazing bead extending independently along the rails and the stiles. The glazing beads are retained by the rails and the stiles and couple the glass panel to the rails and stiles.
Traditionally, the glazing bead is integrally formed of polyvinyl chloride (PVC). The glazing bead is subjected to high temperatures from the sun. The high temperatures can cause the PVC to warp and shrink, which causes the glazing bead to pull away from the glass panel. Pulling away of the glazing bead causes a discontinuous coupling along the rails and the stiles which can result in the glazing bead being unstable in the frame. Furthermore, the pulling away of the glazing bead causes a transition between the rail/stile and the glass panel which is not aesthetically pleasing. As such, there remains a need to provide an improved glazing bead.
The subject invention provides for a glazing bead for engaging a fenestration article and a frame. The glazing bead includes a reinforcement member having an outer surface and extending along a longitudinal axis between a pair of longitudinal ends, with at least a portion of the reinforcement member extending along a cross-sectional axis, which is transverse to the longitudinal axis, in a substantially linear configuration between a first end and a second end. The glazing bead further includes and a body at least partially enveloping the outer surface of the reinforcement member and coupled with the reinforcement member, with the body supported by the reinforcement member. The glazing bead further includes a protrusion extending from the body adjacent the first end of the reinforcement member for engaging the fenestration article, and a leg having a proximal end adjacent the second end of the reinforcement member, with the leg extending from the body to a distal end, with the proximal and distal ends forming an angle less than ninety degrees from the cross-sectional axis for engaging the frame such that the leg is retained by the frame.
The subject invention further provides a method of manufacturing a glazing bead for engaging a fenestration article and a frame. The glazing bead includes a reinforcement member having an outer surface and extending along a longitudinal axis between a pair of longitudinal ends, with at least a portion of the reinforcement member extending along a cross-sectional axis, which is transverse to the longitudinal axis, in a substantially linear configuration between a first end and a second end. The glazing bead further includes a body at least partially enveloping the outer surface of the reinforcement member and coupled with the reinforcement member, with the body supported by the reinforcement member. The glazing bead further includes a leg having a proximal end adjacent the second end of the reinforcement member, with the leg extending from the body to a distal end. The proximal and distal ends form an angle less than ninety degrees from the cross-sectional axis. The method includes the steps of providing the reinforcement member, and depositing a polymer to form the body, the protrusion, and the leg coupled with the reinforcement member.
Accordingly, the reinforcement member supports the body of the glazing bead. The reinforcement member prevents excessive warping of the glazing bead due to direct heating from the sun, which maintains engagement with the fenestration article and the frame, which provides a seal between the fenestration article and the frame.
Advantages of the subject invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings.
Referring to the Figures, wherein like numerals indicates like or corresponding parts throughout the several views, a fenestration closure assembly 26 for disposition within an opening of a structure is generally shown in
As shown in
The rail members 34 are often mirror images of each other and the stile members 36 are often mirror images of each other. The rail members 34 and the stile members 36 each have a cross-section. The cross-section of each of the rail members 34 may be substantially similar to the cross-section of each of the stile members 36. As such, the cross-sectional views shown in
As shown in
The rail members 34 and the stile members 36 each further include an outer wall 42 and an inner wall 44 opposite the outer wall 42. Both the outer wall 42 and the inner wall 44 are disposed between the interior wall 40 and the exterior wall 38. Generally, the outer walls 42 of the rail members 34 and stile members 36 define a periphery of the frame 30. The exterior wall 38, the interior wall 40, the outer wall 42, and the inner wall 44 collectively define the cross-section of each of the rail members 34 and each of the stile members 36. Each of the rail members 34 and the stile members 36 may define an interior such that the rail members 34 and the stile members 36 may be hollow.
Each of the rail members 34 and the stile members 36 may have an abutment surface 46 spaced from and facing the same direction as the exterior wall 38. The fenestration closure assembly 26 may further include a fenestration article 32 coupled to the frame 30. The fenestration article 32 may engage the abutment surface 46, preventing further movement of the fenestration article 32 beyond the abutment surface 46 into the interior of the structure. Moreover, the fenestration article 32 may be coupled to the frame 30 at the abutment surface 46 by adhesive, mechanical fastener, or any other suitable manner of coupling.
The fenestration article 32 may be a glass panel as shown in
As shown in
The fenestration closure assembly may further include a glazing bead 28 for engaging a fenestration article 32 and a frame 30. As shown in
As generally shown in
Engagement of the glazing bead 28 with the frame 30 and the fenestration article 32 may provide a seal between frame 30 and the fenestration article 32, to prevent intrusion heat and water transmission between the frame 30 and the fenestration article 32.
The body 54 may have an exterior surface 56 configured to face away from the fenestration article 32 and an interior surface 58 configured to face toward the fenestration article 32 such that the interior surface 58 opposes the exterior surface 56 along the cross-sectional axis C. The glazing bead 28 may further include a cap 60 disposed on the exterior surface 56 of the body 54 for covering the body 54 when the glazing bead 28 is assembled with the fenestration article 32 and the frame 30,
As shown in
The reinforcement member 50 may be disposed within at least one of the protrusion 62 and the leg 64. Said differently, the reinforcement member 50 may extend into at least one of the protrusion 62 and the leg 64 as shown in
As shown in
As shown in
As shown in
As shown in
As shown in
As shown in
The body 54, the protrusion 62, and the leg 64 may be formed of a polymer. The polymer may be a rigid cellular polyvinyl chloride (PVC). It is to be appreciated the polymer may be any suitable material for engaging the fenestration article 32 and the frame 30.
As shown in
The pretreated layer 72 may be disposed entirely along the outer surface 52. One having skill in the art will appreciated that the pretreated layer 72 may be disposed along only a portion of the outer surface 52. The pretreated layer 72 may be a thin film or coating disposed along the structural layer 74. Furthermore, the structural layer 74 may be equal-to or between 0.0005 and 0.0015 inches thick. The pretreated layer 72 may be thinner than the structural layer 74. It is to be appreciated that the pretreated layer 72 and the structural layer 74 may be any thickness. The structural layer 74 may be more rigid than the pretreated layer 72 with the structural layer 74 acting as a plastically-deformable skeleton for the glazing bead 28, which allows the glazing bead 28 to be worked into different configurations.
The pretreated layer 72 may comprise a polymer. The polymer facilitates improved coupling between the reinforcement member 50 and the body 54. The polymer may comprise a polyurethane. It is to be appreciated that the pretreated layer 72 may comprise any suitable material.
The structural layer 74 may comprise a metallic material. The metallic material may be at least partially comprised of aluminum. The metallic material may be entirely comprised of aluminum. It is to be appreciated that the metallic material may be a surface-treated aluminum, including but not limited to anodized aluminum. Metallic materials are typically capable of being plastically-deformed, which allows the reinforcement member 50 to be worked into various configurations and to maintain those configurations. The metallic material is also more resistant to heat-related deformation than the body 54, the protrusion 62, and the leg 64, which may be formed of the polymer described above. The glazing bead 28 is commonly subjected to direct heat from the sun. As such, the reinforcement member 50 prevents excessive warping of the glazing bead 28 due to heat.
The pretreated layer 72 and the structural layer 74 may be integral with one another. Said differently, with the body 54 coupled with the outer surface 52 of the reinforcement member 50, the pretreated layer 72 may not be distinguishable from the structural layer 74 of the reinforcement member 50, which is best shown in the magnified view of the coupling of the reinforcement member 50 and the body 54 shown in
The cap 60 (as shown in
The invention further comprises a method of manufacturing the glazing bead 28. The method comprises the steps of providing the reinforcement member 50, and depositing the polymer to form the body 54, the protrusion 62, and the leg 64 coupled with the reinforcement member. Said differently, the polymer of the body 54, the protrusion 62, and the leg 64 is placed into contact with the outer surface 52 with the reinforcement member 50 to couple the reinforcement member 50 with the body 54, the protrusion 62, and the leg 64. Although numerous embodiments of the glazing bead 28 are shown in the Figures, the steps set forth in the described method are illustrated in
The method may further include the step of depositing the acrylic along the body 54 to form the cap 60. More specifically, the acrylic of the cap 60 may be placed into contact with at least the body 54 to couple the body 54 with the cap 60.
The step of depositing the polymer to form the body 54 may be further defined as depositing the polymer enveloping the reinforcement member 50 to form of the body 54. The reinforcement member 50, prior to the step of depositing the polymer to form the body 54, the protrusion 62, and the leg 64, is shown in
During extrusion, the reinforcement member 50 is positioned within a die having a mold surface defining a void. The polymer is extruded into the void (i.e., the polymer material, which is typically in a solid state such as a pellet or granule, is heated by compression or radiant heat to a temperature at or between 300 and 360 degrees Fahrenheit). The polymer material converts from the solid state into a liquid state and is moved into and fills the void enveloping the reinforcement member 50. It is to be appreciated that the step of depositing the polymer to form the body 54, the protrusion 62, and the leg 64 may be performed by any other suitable process, including but not limited to injection molding.
The step of providing the reinforcement member 50 may be further defined as providing the reinforcement member 50 having an initial configuration, as shown in
The method may further comprise the step of forming the reinforcement member 50 of the structural layer 74 and the pretreated layer 72. As described above, the structural layer 74 may be the metallic material at least partially comprised of aluminum and the pretreated layer 72 may be the polymer comprised of polyurethane. As described above, the pretreated layer 72 improves the coupling between the reinforcement member 50 and the body 54 with the pretreated layer 72 and the structural layer 74 integral with one another such that the structural layer 74 and the pretreated layer 72 are indistinguishable. The pretreated layer 72 and the structural layer 74 may be integral after the step of depositing the polymer to form the body 54, the protrusion 62, and the leg 64, as shown in
The step of forming the reinforcement member 50 of the structural layer 74 and the pretreated layer 72 may occur prior to the step of providing the reinforcement member 50. Furthermore, the step of forming the reinforcement member 50 of the structural layer 74 and the pretreated layer 72 is commonly performed off-site (i.e., not at the same facilities as the steps providing the reinforcement member 50, depositing the polymer to form the body 54, the protrusion 62, and the leg 64 coupled with the reinforcement member, and depositing the acrylic to form the cap 60) and is in-sourced prior to the steps of providing the reinforcement member 50, depositing the polymer to form the body 54, the protrusion 62, and the leg 64 coupled with the reinforcement member and depositing the acrylic to form the cap 60. The reinforcement member 50 may be in-sourced having the flat configuration and is coiled about an axle. The reinforcement member 50 is then un-coiled into the planar configuration prior to the step of providing the reinforcement member 50. It is to be appreciated that the step of forming the reinforcement member 50 may be performed on-site.
The method may further comprise the step of working the reinforcement member 50 into a modified configuration. Said differently, the reinforcement member 50 may be worked into a non-linear configuration, which is generally shown in the embodiment illustrated in
The method may further comprise the step of pre-heating the reinforcement member 50 prior to the step of depositing the polymer to form the body 54, the protrusion 62, and the leg 64. The step of pre-heating the reinforcement member 50 may follow the step of working the reinforcement member 50. The step of pre-heating the reinforcement member 50 may involve raising the temperature of the reinforcement member 50 to approximately 300 degrees Fahrenheit. The step of pre-heating the reinforcement member 50 improves integration of the pretreated layer 72 into the structural layer 74 and into the body 54 during the following step of depositing the polymer to form the body 54, the protrusion 62, and the leg 64. It is to be appreciated that the step of pre-heating may involve raising the temperature to any desired temperature.
It is common that following the step of depositing the body 54, the protrusion 62, and the leg 64 (which may occur at or between 300 and 360 degrees Fahrenheit) the polymer of the body 54, the protrusion 62, and the leg 64 may not be cooled to a sufficient temperature within the die of the extruder to maintain the shape of the body 54, the protrusion 62, and the leg 64 defined by the extruder. Furthermore, the reinforcement member 50, which also has an elevated temperature, may change size and shape as its temperature decreases after leaving the die of the extruder. As such, the method may further comprise the step of shaping the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 into a final configuration following the step of depositing the polymer to form the body 54, the protrusion 62, and the leg 64, as shown in
The step of cooling the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 may occur simultaneously with the step of applying the vacuum to the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 within the final die and may also occur following the step of applying the vacuum to the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 within the final die. The step of cooling the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 may occur following the step of applying the vacuum to the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 within the final die. The step of cooling the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 involves the application of a fluid (typically water, but may be any suitable fluid) along the body 54, the protrusion 62, and the leg 64. The fluid may be applied directly to the body 54, the protrusion 62, and the leg 64. However, the fluid may be applied indirectly to the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 (i.e., the fluid is close to but spaced from the reinforcement member 50, the body 54, the protrusion 62, and the leg 64). The fluid is heated by the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 by heat exchange and is transported away from the reinforcement member 50, the body 54, the protrusion 62, and the leg 64. As such, the fluid cools the reinforcement member 50, the body 54, the protrusion 62, and the leg 64, which maintains the final configuration of the reinforcement member 50, the body 54, the protrusion 62, and the leg 64.
Each of the steps described above may be performed in succession in accordance with the order described above. Said differently, the steps are performed along a production line with components of the glazing bead 28 being introduced and/or defined progressively along the production line. The steps produce a long continuous glazing bead 28 being introduced along the production line. The components of the glazing bead 28 must be driven along the assembly line. Therefore, the method may further comprise the step of pushing the reinforcement member 50 having the initial configuration along the production line. This step may be performed prior to the step of depositing the polymer to form the body 54, the protrusion 62, and the leg 64. The coil of the reinforcement member 50 may be driven by the axle. Said differently, the axle rotates which both uncoils the reinforcement member 50 and pushes the reinforcement member 50 along the production line. Therefore, the step of pushing the reinforcement member 50 may be performed when the reinforcement member 50 is in the initial configuration.
The step of pushing the reinforcement member 50 having the initial configuration along the production line may be sufficient to move the reinforcement member 50 entirely along the production line. However, the forces exerted on the reinforcement member 50 during the step of depositing the polymer to form the body 54, the protrusion 62, and the leg 64 and the potential steps of working the reinforcement member 50 into the modified configuration and applying the vacuum to the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 within the final die may apply an opposing force against the force exerted by the driven axle. Therefore, the method may further comprise the step of pulling the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 having the final configuration along the production line. This step may be performed following the step of shaping the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 into the final configuration. A pulling device may be positioned down the assembly line following the cooling tank. Therefore, the step of pulling the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 may be performed when the reinforcement member 50, the body 54, the protrusion 62, and the leg 646 is in the final configuration. The pulling device grips the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 having the final configuration coming out of the cooling tank and exerts a force away from the cooling tank. Therefore, the steps of pushing the reinforcement member 50 and pulling the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 exert forces acting in the same direction which facilitates movement of the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 down the production line.
The step of depositing the acrylic to form the cap 60 may occur after the reinforcement member 50, the body 54, the protrusion 62, and the leg 64 are deposited, and is generally shown in
The method may further comprise the step of cutting the reinforcement member 50, the body 54, the protrusion 62, the leg 64, and the cap 60 to create the glazing bead 28. Said differently, the reinforcement member 50, the body 54, the protrusion 62, the leg 64, and the cap 60 are cut transverse to the longitudinal axis L such that the glazing bead 28 has a length, as shown in
The invention has been described in an illustrative manner, and it is to be understood that the terminology which has been used is intended to be in the nature of words of description rather than of limitation. As is now apparent to those skilled in the art, many modifications and variations of the subject invention are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims, wherein reference numerals are merely for convenience and are not to be in any way limiting, the invention may be practiced otherwise than as specifically described.
Number | Date | Country | |
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62218837 | Sep 2015 | US |