Door Panel Decorative Glass Panel Interchangeable Skin Lip
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Solution Overview
Problem
Traditional methods for securing glass panels in doors, such as using beads or integrally formed lips, either increase manufacturing costs or lack flexibility for customization and replacement.
Innovation Solution
A door panel design featuring interchangeable skins with integrally formed lips and coupling elements that allow for the use of adhesive to secure glass panels, with optional removable lip portions replaced by beads for customization and easy panel replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beads are used to secure a glass panel to the door opening, then the glass panel can be fastened, but the manufacturing cost increases due to extra making and assembling steps
Solution Approach 1:
The patent merges the bead function with the door skin by integrally forming the lip portion directly on the door skin. This eliminates the separate bead component and its assembly steps, reducing manufacturing cost while maintaining the glass panel fastening function through the integrated lip structure that holds the glass in place.
Solution Approach 2:
The door skin is designed to perform multiple functions: it provides structural support, defines the opening, and integrally forms the lip portion that secures the glass panel. This multi-functional design eliminates the need for separate beads, reducing both component count and assembly steps while maintaining reliable glass fastening.
2Ease of manufacture
If lips are integrally formed with the door skin to hold the glass panel, then manufacturing steps are reduced, but the glass panel cannot be replaced after door assembly
Solution Approach 1:
The patent segments the door assembly into replaceable components: the door skin with integrally formed lip, the glass panel, and optional beads. This segmentation allows the glass panel and beads to be independently replaced without replacing the entire door, maintaining manufacturing efficiency while enabling customization and replacement flexibility.
Solution Approach 2:
The design transitions from a static, fixed glass panel arrangement to a dynamic, replaceable system. The integral lip provides stable mounting, while the separate bead and glass panel components can be dynamically removed and replaced, allowing the door to adapt to different glass panels and customization needs after manufacturing.
3Device complexity
If a fixed lip structure is used to hold the glass panel, then the door structure is simplified, but customization and replacement options are limited
Solution Approach 1:
The door structure is segmented into a fixed integral lip portion and replaceable bead/glass components. This segmentation maintains structural simplicity while enabling customization, as the simple integral lip provides stable mounting but the replaceable beads and glass panels offer customization flexibility without complicating the overall door structure.
Data Source
AI summary
A door panel comprises a body, first and second skins on opposite sides of the body, each having an opening aligned with the other opening, a first lip portion being provided on the first skin and adjacent the opening for holding a decorative panel and a pair of coupling elements provided on the first and second skins respectively and extending therebetween for inter-engagement to thereby fix relative positions of the first and second skins. The first and second skins define a space therebetween for receiving filling material to form the body, and include a partition in and extending across the space to delineate a portion of the space separate from the openings for receiving the filling material to form the body.