Door Sill Press-Fit Deck and Base Segmentation
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Solution Overview
Problem
Traditional door sills are often expensive, lack durability, and fail to provide a secure fit and adequate weather resistance, especially under heavy foot traffic and moisture exposure.
Innovation Solution
A door sill assembly comprising a molded base component and a removable deck component that form a press-fit connection using a U-shaped segment and slot, with a seal and caulking surface for enhanced weatherproofing, allowing for a cost-effective, durable, and secure installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional one-piece door sills are used, then durability is improved, but cost increases and weather resistance deteriorates
Solution Approach 1:
The door sill is divided into multiple components: a base component and a deck component. This segmentation allows each part to be manufactured separately using cost-effective processes while maintaining overall durability. The base component provides structural support and weather resistance, while the deck component handles foot traffic, optimizing both cost and performance.
2Reliability
If traditional one-piece door sills are used, then durability is improved, but weather resistance deteriorates
Solution Approach 1:
By separating the door sill into base and deck components, each can be optimized for its specific function. The base component can be designed with enhanced weather sealing features, while the deck focuses on durability against foot traffic, achieving both weather resistance and durability simultaneously.
Solution Approach 2:
The segmented design introduces an intermediary interface between the base and deck components, allowing for specialized weather sealing mechanisms at the junction. This intermediary structure enables improved weather resistance without compromising the overall durability of the door sill system.
3Ease of manufacture
If multi-piece door sills are used, then cost is reduced, but secure fit deteriorates
Solution Approach 1:
The segmentation into base and deck components is designed with complementary joining features that ensure a secure fit. The modular design allows for precise manufacturing of each component with integrated connection elements, maintaining structural integrity while reducing overall cost.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a secure, durable, and cost-effective door sill system that resists foot traffic and moisture, maintaining a long-term secure fit while minimizing material usage and production costs.
Implementation Method 1
The segment may be tensioned so that a distance between the first arm and the second arm is greater than the distance between inside parallel walls of the slot. The first arm and second arm are therefore press-fit into the slot and create a tension lock inside the slot between the slot and the segment.
Data Source
AI summary
A system, device, kit, assembly and methods for a frame assembly, including a door sill as shown and described. The assembly may be a door frame assembly and may, by way of example, be a door jamb and/or a door mullion including a door sill. In other embodiments, a door sill includes a base component having a slot, a deck component having a segment, and wherein the segment component press-fits within the slot to adjoin the base component and the deck component. Some inventions of the present disclosure may be considered a door sill having a press-fit removable deck.


