Self-Tapping Screw Anchoring System for Tension-Free Mounting
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Solution Overview
Problem
Conventional fastening systems for attaching add-on parts to anchoring bases at a distance often require dowels, which can be too short for substrates with hollow chambers, and fail to provide tension-free mounting, leading to potential warping and instability.
Innovation Solution
A mounting kit comprising a hardened screw with a threaded portion that self-taps into solid anchoring bases and can be used with or without a dowel, depending on the substrate type, allowing for flexible and stress-free attachment by determining if the base is solid or hollow, and cutting a dowel to length as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fastening systems with dowels are used for distance mounting, then mounting is possible on solid substrates, but the dowels are too short for substrates with hollow chambers
Solution Approach 1:
The screw is designed to perform multiple functions: it can self-tap into solid substrates directly, and it can also engage with dowels in hollow substrates. This universal design eliminates the need for different fastening systems for different substrate types, resolving the contradiction between adaptability and component length limitations
2Ease of operation
If direct contact fastening is used, then simple mounting is achieved, but tension-free mounting at a distance is not possible
Solution Approach 1:
The fastening system is segmented into two main components: a hardened screw and an optional dowel. This segmentation allows the system to maintain simplicity for solid substrates (screw only) while providing the capability for hollow substrate mounting (screw with dowel), balancing ease of operation with the ability to achieve tension-free mounting
3Adaptability or versatility
If multiple fastening systems are used for different substrates, then all substrate types are covered, but system complexity and inventory requirements increase
Solution Approach 1:
The hardened screw is designed as a universal fastening component that can be used with both solid and hollow substrates. For solid substrates, it self-taps directly; for hollow substrates, it engages with a dowel. This universality reduces inventory requirements and simplifies the fastening system while maintaining coverage of all substrate types
4Temperature
If insulation layers are placed between anchoring base and add-on part, then thermal insulation is improved, but pressure resistance and structural integrity are compromised
Solution Approach 1:
The hardened screw acts as an intermediary element that bridges the insulation layer and the anchoring base. By being inserted through the insulation layer and engaging with the anchoring base (either by self-tapping or dowel engagement), it transmits compressive forces through the insulation layer without compromising its insulating properties, thus resolving the contradiction between thermal insulation and structural integrity
Data Source
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AI summary
Mounting kit (100) for spaced mounting of an attachment (300) to an anchoring base (302, 500), wherein the mounting kit (100) comprises a screw (102) with a threaded part (106) and a dowel (110), wherein the screw (102) is designed to form a self-tapping thread when screwed into a bore in a concrete wall, wherein the screw (102) is configured to be screwed through the attachment (300) into a bore in an anchoring base (500) designed as a solid body without a dowel, and wherein the screw (102) is configured to be screwed through the attachment (300) into the dowel (110) in a bore in an anchoring base (302) designed as a hollow body.