Adjustable Fastening Element for Composite Wall Force Distribution
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Solution Overview
Problem
Existing fixing systems for equipment on vehicle floors with composite material walls struggle with force distribution due to variations in wall spacing, leading to poor transmission of forces and potential deformation, especially when hole alignment is off.
Innovation Solution
A fixing element with an adjustable spacer and bearing surfaces that can be aligned to accommodate varying wall spacings, allowing for precise adjustment and secure attachment of equipment without creating a lever arm effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a fixed-length cylindrical body is used to distribute forces between two walls, then force distribution is achieved, but variations in wall spacing cause poor force transmission and potential deformation
Solution Approach 1:
The fastening element incorporates an adjustable length mechanism that allows the element to adapt its dimensions to match varying distances between walls. This dynamic adjustment capability ensures optimal force transmission while accommodating manufacturing tolerances and different wall configurations, resolving the contradiction between maintaining fixed structural integrity and adapting to variable spacing conditions.
Solution Approach 2:
The invention changes the parameter of fastening element length from fixed to variable, enabling the element to be adjusted to the specific distance between walls. This parameter change allows the fastening system to maintain effective force distribution across different wall spacing scenarios, eliminating the game or deformation issues caused by mismatched lengths.
2Ease of operation
If holes in top and bottom walls are not properly aligned, then insertion of the screw becomes impossible, but requiring precise alignment increases manufacturing complexity
Solution Approach 1:
The fastening element acts as an intermediary component that bridges the gap between misaligned holes in the two walls. By incorporating adjustment mechanisms and tolerance-compensating features, the element enables successful connection even when wall holes are not perfectly aligned, thereby easing installation while reducing the stringency of manufacturing precision requirements.
3Strength
If the distance between walls is too short or too great, then the fastening system deforms the walls, but adjusting for all possible distances increases device complexity
Solution Approach 1:
The fastening element employs a dynamic adjustment mechanism that allows operators to configure the element's length to match the specific wall spacing. This approach protects wall integrity across various distances without requiring an overly complex pre-configured system, as the adjustment can be made during installation based on actual measurements.
Data Source
Figure 1~3
Figure 4~5
AI summary
The invention relates to a fastening element (1) intended for fastening a device to a partition including a first wall (2) and a second wall (3) opposite one another and separated one above the other, the fastening element comprising a first portion (11) and a second portion (12). The first portion (11) is fastened to the first wall (2) and comprises a base (110) intended for being fastened to the first wall (2), and a spacer (111), fastened to the base (110) by means of an adjustment means arranged so as to allow the position of the spacer (111) to be modified relative to said base (110). The spacer includes a bearing surface (113) which can rest on a receiving surface (123) located on the second portion (12), which is fastened to the second wall (3) opposite the first portion (11).