Window Jamb Liner Segmentation for Aesthetic Sealing
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Solution Overview
Problem
Double hung window jambs often lack an aesthetically appealing appearance due to the jamb liner, which does not match the rest of the window frame, despite providing essential functional aspects like sealing and securing the window sashes.
Innovation Solution
A double hung window assembly with opposing side jambs featuring jamb liners of equal length, incorporating sash tracks, jamb fillers with weather stripping recesses, and a primary exposed surface that matches the window frame's material, ensuring a visually pleasing finish while securing and sealing the window sashes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the jamb liner is made of extruded metal or plastic to provide functional aspects, then the sealing and securing functions are achieved, but the appearance does not match the wood window frame
Solution Approach 1:
The jamb liner is divided into two distinct segments: an extruded functional portion (metal or plastic) that provides sealing and securing functions, and a wood portion that matches the window frame appearance. This segmentation allows each part to optimize for its specific requirement - functionality for one segment, aesthetics for the other.
Solution Approach 2:
The jamb liner uses a composite construction combining extruded metal or plastic with wood materials. The functional extruded portion is attached to the wood portion, creating a composite structure that integrates different material properties - the durability and sealing capability of metal/plastic with the aesthetic compatibility of wood.
2Strength
If the jamb liner is made of extruded metal or plastic to provide structural integrity, then the securing function is achieved, but the aesthetic appearance is compromised
Solution Approach 1:
The jamb liner is divided into two distinct segments: an extruded functional portion (metal or plastic) that provides sealing and securing functions, and a wood portion that matches the window frame appearance. This segmentation allows each part to optimize for its specific requirement - functionality for one segment, aesthetics for the other.
Solution Approach 2:
The jamb liner uses a composite construction combining extruded metal or plastic with wood materials. The functional extruded portion is attached to the wood portion, creating a composite structure that integrates different material properties - the durability and sealing capability of metal/plastic with the aesthetic compatibility of wood.
3Shape
If the jamb filler extends the full height of the jamb liner to provide complete coverage, then the aesthetic appearance is improved, but the installation complexity increases
Solution Approach 1:
The jamb filler is positioned to fill only the recess portion of the jamb liner where the extruded functional portion is attached, rather than extending the full height. This local application provides sufficient aesthetic coverage while simplifying installation and reducing material usage.
Data Source
AI summary
The present invention is directed to a double hung window assembly and methods of manufacturing the double hung window assembly. The window assembly includes upper and lower sash assemblies, opposing side jambs, and a pair of opposing jamb liners that each have a length generally equal to a length of the opposing side jambs. At least one jamb recess is located between sash tracks on each of the jamb liners. Each jamb recess retains a jamb filler having a length generally equal to the jamb liner length. Each jamb filler has outer and inner weather stripping recesses, and outer and inner weather stripping. The jamb filler may include a primary exposed surface that is substantially unobstructed by the inner and outer weather stripping. A portion of the outer and inner weather stripping may be compressively secured between the jamb filler and a portion of the jamb liner.