Seal-Less Shower Pan Wall Panel Holder With Drainage Gap
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Solution Overview
Problem
Conventional wall panel holders in shower pans often require adhesives and caulking, leading to potential water leakage issues due to adhesive deterioration over time, which can prevent water from returning to the shower drain.
Innovation Solution
A seal-less wall panel holder design that uses an interference fit to secure the wall panel without glue or caulk, featuring a holding gap that allows water to flow between the panel and the perimeter wall, and includes a reversible mechanical door fixation and drainage channel to prevent water leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive and caulk are used to secure the wall panel in the U-shaped groove, then the wall panel is fixed to the pan, but water leakage occurs over time due to adhesive deterioration
Solution Approach 1:
The patent removes the adhesive and caulk from the system entirely, replacing them with a mechanical interference fit between the wall panel and the holding body. The holding body is integrated into the pan structure, eliminating the need for separate sealing materials that deteriorate over time.
Solution Approach 2:
The patent replaces the chemical bonding system (adhesive and caulk) with a mechanical interference fit system. The wall panel is secured through friction and geometric constraints within the holding body, providing a durable, maintenance-free connection that maintains water-tightness without degrading materials.
2Reliability
If caulk is used around the join between wall panel and perimeter surface, then water-tight seal is achieved, but water drainage is prevented when seal fails
Solution Approach 1:
The patent segments the sealing function from the drainage function. The holding body provides a localized interference fit seal at the wall panel connection point, while the perimeter wall maintains an open gap for water drainage. This separation allows the system to maintain water-tightness where needed while preserving drainage pathways.
Solution Approach 2:
The patent applies sealing only where necessary through the localized interference fit in the holding body, rather than using continuous caulk around the entire perimeter. The gap between the perimeter wall and wall panel remains open for drainage, creating different local properties (sealed vs. open) in different regions of the system.
3Strength
If adhesive is used to secure wall panel in U-shaped groove, then wall panel is fixed, but installation becomes time-consuming requiring measurements and markings
Solution Approach 1:
The holding body is pre-integrated into the pan structure during manufacturing, with the interference fit geometry already prepared. This preliminary action eliminates the need for on-site measurements, markings, and adhesive application, allowing the wall panel to be installed simply by inserting it into the pre-configured holding body.
Solution Approach 2:
The patent removes the time-consuming adhesive application process entirely, replacing it with a simple mechanical insertion operation. The interference fit design requires no measurements or markings, reducing installation to a straightforward insert-and-lock action.
4Ease of operation
If U-shaped groove design is used to locate wall panel, then mechanical fixation is improved, but water leakage occurs at the joint over time
Solution Approach 1:
The patent enhances the mechanical fixation by replacing the simple U-shaped groove with a holding body that provides interference fit through friction and geometric constraints. This mechanical system maintains the ease of installation while eliminating water leakage by removing the adhesive dependency.
Solution Approach 2:
The holding body integrates multiple functional elements into a single composite structure that combines mechanical retention (interference fit) and sealing functions. This composite design eliminates the need for separate adhesive materials while maintaining both fixation strength and water-tightness.
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 significantly reduces water leakage, simplifies installation, eliminates the need for caulk and gaskets, and ensures efficient water drainage back into the shower pan, making it quicker and easier to install while maintaining a watertight seal.
Implementation Method 1
the wall panel is simply inserted into them using an interference fit
Data Source
AI summary
A wall panel holder for a shower pan which comprises a holding body including first and second spaced apart sidewalls. The sidewalls define a holding gap between them which is sized and shaped to permit a lower part of a wall panel to be snuggly received by it. the holding gap is located away from a perimeter wall of the shower pan so as to hold the wall panel away from the perimeter wall and to allow water to flow between the perimeter wall and under the lower part of the wall panel.