Door Seal Fitting Conceals Hardware with Integrated Cap

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Solution Overview

Problem

Conventional door seal assemblies often have exposed mounting hardware, which is aesthetically undesirable, and existing solutions fail to effectively conceal mechanical fasteners while ensuring secure attachment to the door post.

Innovation Solution

A door seal mounting assembly comprising a base member with a mounting portion and a cap that conceals the hardware, featuring a snap-fit mechanism and axially spaced mechanical fasteners to secure the components together, ensuring the fasteners are hidden from view.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If a cap is added to conceal mounting hardware, then aesthetic appearance is improved, but device complexity increases

Engineering Contradiction:
Improveaesthetic appearanceVSAvoiddevice complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The cap is integrated with the door seal assembly, combining the cosmetic covering function with the mounting structure. The cap includes a facing portion and wing portions that engage with the base member, merging multiple functions (concealment, structural support, and sealing) into a single integrated component rather than separate parts.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cap is positioned to receive the mounting hardware within its structure, nesting the fasteners inside the cap assembly. The facing portion of the cap covers the mounting hardware, creating a nested configuration where the hardware is housed within the cap's internal geometry.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Strength

If mechanical fasteners are used to secure the cap, then connection strength is improved, but visibility of fasteners worsens aesthetics

Engineering Contradiction:
Improveconnection strengthVSAvoidaesthetic appearance
Core Design Contradiction:
StrengthVSShape

Solution Approach 1:

The mounting hardware is extracted from the visible exterior and positioned inside the cap assembly. The fasteners are installed through the base member and secured within the cap's internal structure, removing them from the external view while maintaining their structural function.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cap serves as an intermediary element between the mounting hardware and the external environment. It provides a cosmetic cover that mediates between the functional requirement of visible fasteners for strength and the aesthetic requirement of hidden hardware, allowing both to coexist.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If the cap is made loose-fitting for easy installation, then ease of operation is improved, but reliability of connection worsens

Engineering Contradiction:
Improveease of installationVSAvoidconnection reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The cap incorporates flexible wing portions that can deflect during installation to accommodate the engagement process, then maintain a secure fitted position once installed. The wing portions are designed to be sufficiently flexible for easy installation but provide adequate structural engagement for reliable connection.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cap's wing portions are designed with specific geometric parameters that allow them to change shape during installation (deflecting to engage) and then maintain a stable fitted configuration. The dimensions and material properties are optimized to provide the right balance between installation ease and connection reliability.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9982478B2Door seal fitting
Publication Date: 2018.05.29 ELTON MFG A DIV OF ONTARIO DOOR SALES LTD
  • US9982478B2 patent drawing
  • US9982478B2 patent drawing
  • US9982478B2 patent drawing

AI summary

A door seal fitting, such as for a garage door, may include a main body or mounting fitting; a cap, and the door seal itself. The mounting fitting has a back web or wall that is attached to a door post or door jamb. The cap seats on the mounting fitting to conceal the mounting hardware of the mounting fitting. The door seal is located in a T-shaped slot on the doorward end of the mounting fitting. It is secured by mechanical fasteners that are hidden behind the seal. The mechanical fasteners pass through a web of the mounting fitting and through a wing or internal leg of the cap. The fasteners are spaced along the length of the assembly to discourage axial shrinkage or shifting of the cap relative to the mounting fitting.