Replaceable Door Sill Deck With Clip Attachment
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Solution Overview
Problem
Door sills often suffer damage during shipment or construction, leading to functional and aesthetic issues, with existing repair methods either costly or damaging to surrounding structures.
Innovation Solution
A door sill assembly with a replaceable sill deck and clip system that allows for easy removal and replacement without damaging the surrounding frame, using a substrate with a nosing and sill channel, and optional temporary protective covers to minimize damage during installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the damaged door sill is completely cut out and replaced, then the aesthetic appearance is restored, but the surrounding mullions, doorjambs, astragals or other structures are damaged, compromising the entire stability or function of the entryway system
Solution Approach 1:
The door sill is divided into separate replaceable components (sill deck, nosing cover, sill channel) that can be independently replaced without affecting the surrounding frame structures. This segmentation allows the damaged sill deck to be replaced while preserving the stability of the mullions, doorjambs, and other entryway components.
2Shape
If the damaged door sill is completely cut out and replaced, then the aesthetic appearance is restored, but the cost increases due to the complexity of the replacement process
Solution Approach 1:
By segmenting the door sill into replaceable modules, only the damaged sill deck needs to be replaced rather than the entire door sill assembly, reducing material costs and installation expenses.
Solution Approach 2:
The sill deck is designed as a disposable or easily replaceable component that can be quickly swapped out without requiring expensive reconstruction of the surrounding frame structures.
3Ease of manufacture
If a metal cover patch is attached to the exposed surface of the existing door sill, then the repair is simpler and less costly, but the patch is not aesthetically or functionally equivalent to the original door sill
Solution Approach 1:
The door sill is segmented into replaceable components including the sill deck, nosing cover, and sill channel, allowing the entire damaged section to be replaced with a matching component rather than patching it, thus restoring both aesthetics and function.
Solution Approach 2:
The sill deck can be made from different materials (wood, composite, metal) and finished to match the original door sill appearance, changing the material parameter to achieve aesthetic equivalence while maintaining the simplicity of replacement.
4Strength
If the sill deck is made as a permanent fixed component, then the structural integrity is maximized, but the ability to replace damaged components is lost
Solution Approach 1:
The door sill is divided into permanently attached components (substrate, nosing cover, sill channel) and a replaceable component (sill deck), maintaining structural integrity through secure attachment mechanisms while enabling easy replacement of the sill deck when damaged.
Solution Approach 2:
The sill deck is designed with dynamic attachment characteristics, allowing it to be securely fastened during normal operation but easily removed and replaced when damaged, combining structural integrity with repairability.
Data Source
AI summary
A door sill assembly for an entryway of a building can include a substrate having a sill channel. A sill deck can be on the substrate. The sill deck can include a deck and a clip. In an embodiment, the sill deck and clip are a unitary construction. The clip can be operably engaged with the deck. The clip can be removably attachable to the substrate. The sill deck is capable of removable attachment from the door sill assembly before or after the door sill assembly is installed in the entryway without removal or damage to any portion of the side jambs.


