Sill Shoulder Elevates Plug to Block Debris
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Solution Overview
Problem
Existing sill configurations in framework assemblies allow debris such as rain, snow, dirt, and bugs to ingress through the space between the sill, fixed sash, and movable sash, damaging the plug inserted to prevent debris entry and reducing its performance over time due to accumulation of debris on the sill surface.
Innovation Solution
A sill configuration with a shoulder that elevates the plug-supporting surface relative to the base, creating a space between the movable sash, fixed sash, and sill, where a plug can be supported to interfere with debris ingress, while the elevated surface directs debris away from the plug, reducing exposure to accumulated debris.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a plug is inserted into the space between the sill, fixed sash, and movable sash to prevent debris ingress, then debris protection is improved, but the plug is exposed to accumulated debris on the sill surface which damages it and reduces its performance over time
Solution Approach 1:
The invention introduces a vertical elevation dimension by creating an elevated surface on the sill that raises the plug-supporting surface above the base sill surface. This dimensional change separates the plug's operational space from the debris accumulation zone, allowing the plug to maintain its sealing function while being protected from debris damage that would otherwise occur on the lower sill surface.
Solution Approach 2:
The elevated surface acts as an intermediary structure between the debris accumulation area and the plug. It provides a dedicated platform that supports the plug while preventing direct contact between the plug and accumulated debris, thus mediating the harmful interaction between these two elements.
2Ease of manufacture
If the plug is positioned at the base sill surface level, then installation is simpler, but debris accumulates on the sill surface and directly contacts the plug causing damage
Solution Approach 1:
The invention adds a vertical elevation component to the plug-supporting surface, raising it above the base sill surface. This dimensional modification creates a protective barrier that prevents debris accumulation at the plug level while maintaining straightforward installation procedures through the use of an integrated elevated surface structure.
3Ease of manufacture
If the sill surface is flat and at base level, then manufacturing is simpler, but debris accumulates on the surface and reaches the plug
Solution Approach 1:
The invention introduces a vertical dimension to the sill structure by creating an elevated surface that rises above the base sill level. This dimensional addition provides a functional platform for supporting the plug while preventing debris accumulation in the critical zone, achieving enhanced protection without significantly complicating the manufacturing process.
Solution Approach 2:
The invention applies a localized quality change by creating an elevated surface at the specific location where the plug is supported, while the rest of the sill structure remains relatively simple. This localized modification concentrates the debris prevention function where it is most needed without requiring complex changes to the entire sill assembly.
Data Source
AI summary
Disclosed herein is a sill configuration of a framework assembly. The sill configuration includes a shoulder, defining a plug supporting surface. The sill configuration is configured for co-operation with the movable sash configuration and the fixed sash configuration so that while a movable sash configuration and a fixed sash configuration are mounted to the sill configuration: (i) the movable sash configuration is slidable, relative to the sill configuration, and (ii) the movable sash configuration, the fixed sash configuration, and the sill configuration are co-operatively disposed so that a space is defined between the movable sash configuration, the fixed sash configuration, and the sill configuration, and (iii) the plug supporting surface of the shoulder is configured for supporting a plug for disposition within the space. While the framework assembly is mounted within the opening of the building construction, the plug-supporting surface is elevated relative to the base.