Stiffening Cross Member Snap-Fit Bracket for Profile Mounting
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Solution Overview
Problem
The installation of traditional stiffening cross members for inspection trapdoors and similar structures is time-consuming and complex due to the need for threaded connection elements, requiring specialized tools and increased effort.
Innovation Solution
A stiffening cross member design that allows for quick and tool-free mounting by utilizing brackets with retention feet and anti-misalignment features, engaging with the profiles' undercuts, eliminating the need for threaded connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If threaded connection elements are used to mount the stiffening cross member, then the structural strength and reliability are improved, but the installation time and operational complexity increase significantly
Solution Approach 1:
The patent replaces the threaded mechanical connection system with a snap-fit engagement system. The retention feet engage with recesses in the profile through elastic deformation, eliminating the need for screws, bolts, or other threaded fasteners. This substitution maintains structural reliability while dramatically reducing installation time and tool requirements.
Solution Approach 2:
The patent utilizes elastic deformation as a key parameter change mechanism. The retention feet are designed to elastically deform during installation to pass through the profile wall, then return to their original shape to lock into place. This parameter change enables a tool-free, rapid installation process while maintaining secure structural attachment.
2Reliability
If threaded connection elements are used to mount the stiffening cross member, then the structural strength is improved, but the device complexity and tool requirements increase
Solution Approach 1:
The patent replaces the complex threaded fastening system with a simple snap-fit mechanism. The retention feet with elastic properties engage directly with recesses in the profile, eliminating the need for threaded connection elements and their associated installation tools. This reduces device complexity while maintaining structural integrity.
Solution Approach 2:
The retention feet are designed to perform the entire attachment function without external tools or assistance. The elastic deformation and recovery of the retention feet automatically secures the stiffening cross member to the profile, making the system self-servicing and eliminating the need for specialized installation equipment.
3Reliability
If threaded connection elements are used, then the attachment reliability is improved, but the ease of operation and installation simplicity deteriorate
Solution Approach 1:
The patent substitutes the multi-step threaded fastening process with a single-step snap-fit engagement. The retention feet elastic deform to engage with the profile recess, providing reliable attachment without requiring rotation, threading, or specialized tools. This dramatically improves ease of operation while maintaining attachment reliability.
Solution Approach 2:
The elastic retention feet automatically perform the attachment function through their own deformation and recovery, without requiring operator intervention with tools. The system serves itself by using the material properties of the retention feet to achieve secure engagement, making installation simple and intuitive.
4Productivity
If brackets with elastic retention feet are used, then the installation speed and ease of operation are improved, but the manufacturing complexity increases
Solution Approach 1:
The patent merges the retention mechanism directly into the bracket structure itself. The retention feet are integrated as part of the bracket body, eliminating the need for separate fastening components. This integration simplifies manufacturing compared to assembling multiple discrete parts, while maintaining the rapid installation advantage.
Solution Approach 2:
The patent utilizes elastic deformation as an inherent property of the bracket material rather than requiring complex mechanical mechanisms. By selecting appropriate materials with suitable elastic properties, the retention function is achieved through material characteristics rather than complex manufacturing processes, balancing manufacturing complexity with installation speed.
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 new design simplifies and speeds up the installation process, making it efficient and cost-effective while maintaining structural robustness.
Implementation Method 1
The coupling body (10) is suitably configured to be elastically compressed toward the longitudinal axis (Y) so as to let the retention foot (14) approach the connection means (13) until it reaches a position that lets it pass through the narrowed mouth (30a) of the profile
Data Source
Figure 1
Figure 1A
Figure 2
AI summary
Stiffening cross member (R1, R2) suitable for being mounted astride two profiles (3) disposed in opposite and parallel position; wherein the stiffening cross member (R1, R2) comprises two brackets (1) suitable for being connected to the two opposite profiles (3), and a connection profile (2) connected to both brackets (1); the peculiarity of the stiffening cross member (R1, R2) is that each bracket (1) comprises a coupling body (10) configured in such a way to be elastically compressed to pass through a narrowed mouth (30a) of the profile and be elastically fitted into the profile.