Board System Snap-Fit Locking Mechanism for Decking
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Solution Overview
Problem
Existing decking systems face challenges such as high installation costs, complexity in replacing damaged boards, and uncontrolled gaps due to board movement, particularly in environments exposed to moisture and temperature changes.
Innovation Solution
A board system comprising a support element with lateral surfaces and locking members, and a connecting device with arms and locking members that engage with the support element, allowing for flexible installation and easy replacement of boards without damaging the board, support element, or connecting device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a screw is used to fasten each clip to the support element, then the connection strength is improved, but the installation time and cost increase
Solution Approach 1:
The screw fastening operation is extracted and eliminated from the installation process. The connecting device uses a snap-fit mechanism where the clip engages directly with the support element through complementary geometric features (protrusions and recesses), removing the need for screws entirely while maintaining connection strength.
Solution Approach 2:
The connecting device is designed to be self-fastening through its geometric configuration. The clip and support element have mating features that automatically align and lock together when the clip is inserted, enabling the system to secure itself without external fastening operations.
2Productivity
If the support element is designed for snap fit engagement, then the installation speed is improved, but the support element strength decreases
Solution Approach 1:
The support element is designed as a composite structure combining a rigid main body for strength with integrated flexible locking features. The locking members are formed as integral parts of the support element, distributing mechanical loads across the entire component rather than concentrating stress at weak snap-fit points, thereby maintaining both installation speed and structural strength.
3Ease of operation
If the clip engages the decking board in the vertical direction only, then the installation simplicity is improved, but the board movement control worsens
Solution Approach 1:
The connecting device extends the engagement from a single vertical dimension to multiple dimensions. The clip features protrusions that engage recesses in the support element vertically, while simultaneously having lateral engagement features that prevent horizontal movement, creating a multi-dimensional constraint system that controls board movement in both vertical and horizontal directions.
4Adaptability or versatility
If the support elements are not level, then the installation flexibility is improved, but the clip engagement reliability worsens
Solution Approach 1:
The connecting device incorporates dynamic adjustment capabilities through movable locking members and flexible engagement features. The clip design allows for slight variations in support element positioning and includes compliance features that adapt to non-level conditions, maintaining reliable engagement across varying installation surfaces without requiring precise leveling.
5Shape
If the clip is covered by the decking board lip, then the aesthetic appearance is improved, but the board replacement difficulty increases
Solution Approach 1:
The system introduces a tool-accessible intermediary mechanism for release. A release tool can be inserted through the groove in the decking board to engage and actuate the hidden clip mechanism, allowing the concealed fastening system to remain aesthetically pleasing while providing a dedicated interface for maintenance and replacement operations.
Data Source
Figure 1a~1g
Figure 1h~1j
Figure 1k~1p
AI summary
A connecting system for boards(3), and a connecting device(2) and a support element(1) for boards are disclosed. The connecting system comprises the support element configured to support at least one board and the connecting device configured to releasably fasten the at least one board to the support element. The support element comprises at least one lateral surface (5) with at least one locking member (6) arranged on the lateral surface. The connecting device comprises at least one arm (7) with a locking member configured for engagement with the locking member of the support element. At least one of the locking member of the support element and the locking member of the connecting device comprises a plurality of protrusions forming a plurality of locking positions of the connecting device relative the support element.