Hidden Deck Fastener with Side Groove Engagement
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Solution Overview
Problem
Conventional methods for attaching deck planks to joists require high precision, are time-consuming, and can lead to flawed installations, with visible fasteners prone to weather damage and safety risks, while existing hidden fastener systems are complex and require different sizes for various plank configurations.
Innovation Solution
A hidden fastener system comprising a cross member with downwardly projecting prongs and obliquely bent ends, paired with an anchoring member, which engages with the groove of a decking member to securely attach planks to a support member, allowing for uniform spacing and aesthetic appeal, using a power driving tool for efficient installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional nails or screws are driven through the top of planks into joists, then secure attachment is achieved, but the plank surface becomes pock-marked and prone to rot and weather damage
Solution Approach 1:
The fastening function is extracted from the top surface of the plank and relocated to the side surface. The U-shaped clip engages with the groove on the side of the plank, removing the need for penetration through the top surface, thereby eliminating pock-marks and weather exposure while maintaining secure attachment.
Solution Approach 2:
The attachment point is moved from the vertical dimension (top surface penetration) to the lateral dimension (side surface engagement). The U-shaped clip engages the groove on the side of the plank, transitioning the fastening mechanism to a different spatial dimension that avoids damaging the top surface.
2Adaptability or versatility
If multiple sizes and configurations of hidden fasteners are used for different grooved planks, then various plank types can be accommodated, but installation becomes confusing and costly
Solution Approach 1:
The U-shaped clip is designed with a universal engagement mechanism that fits grooves of various sizes and configurations. The flexible legs and adjustable geometry allow a single fastener design to accommodate different plank types, eliminating the need for multiple specialized fastener sizes.
Solution Approach 2:
The fastener design incorporates adjustable parameters such as leg flexibility and engagement depth that can adapt to different groove dimensions. This allows a single fastener type to function across various plank specifications by changing its engagement parameters rather than requiring different fastener geometries.
3Manufacturing precision
If professional quality installation is performed with careful alignment and precise fastener insertion, then desirable aesthetic and functional results are achieved, but significant time expenditure is required
Solution Approach 1:
The U-shaped clip is pre-formed with engagement features that automatically align with the groove when the plank is positioned. The legs are pre-bent to match the groove geometry, eliminating the need for precise manual alignment during installation and significantly reducing installation time while maintaining precision.
Solution Approach 2:
The fastener design includes self-aligning features where the U-shaped clip and its legs automatically position themselves relative to the groove during installation. The geometry of the clip causes it to snap into the correct position without requiring precise manual placement, making the installation process faster and more forgiving.
Data Source
AI summary
A hidden fastener and associated method for attaching decking members with side grooves to a support member includes a cross member and an elongate anchoring member. The cross member has a body with a front and rear end and defines a hole. The front end has at least one prong and the rear end includes a bent wing. At least one leg extends downward from the body intermediate the front and rear ends. Each of the front and rear ends are configured to engage with the groove of adjacent decking members. The front end is inserted into the groove of a leading decking member and the anchoring member is driven through the hole into the support member. A trailing decking member is placed with the rear end in the groove adjacent the leading decking member.