Rotating Adapter Clip for Convergent Wall Orifices
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Solution Overview
Problem
Existing fasteners for cantilevered structures are not suitable for through holes with convergent shapes in both directions, lacking flexibility and safety in use, and often require lubrication for movement, which can lead to corrosion and reduced service life.
Innovation Solution
A clip with a rigid adapter and complementary rotational securing means, a clamping member, and a deployable retaining tab, featuring a surface treatment for corrosion protection and dry lubrication, allowing for secure attachment in various orifice shapes without tilting and enhancing robustness and longevity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the clip body is shaped to match convergent orifices, then insertion is facilitated, but the clip cannot be used with divergent orifices
Solution Approach 1:
The clip is divided into two functional segments: a standardized body designed for divergent orifices and an adapter component for convergent orifices. This segmentation allows the main clip body to remain simple while the adapter handles the specialized convergent case, eliminating the need for multiple clip variants.
Solution Approach 2:
An adapter component serves as an intermediary element between the standardized clip body and convergent orifices. The adapter translates the geometric mismatch between the clip's cylindrical shape and the convergent orifice shape, enabling universal compatibility without modifying the main clip body.
2Ease of operation
If lubricant is applied to facilitate movement between parts, then movement is easier, but corrosion risk increases and service life decreases
Solution Approach 1:
The clip employs self-lubricating materials (PTFE/Teflon coating) that provide lubrication without requiring external lubricants. The material's inherent low friction properties enable smooth movement between parts while maintaining corrosion resistance and eliminating the need for maintenance lubrication.
Solution Approach 2:
The friction parameter is modified by applying a PTFE coating to the clip body and adapter surfaces. This coating changes the surface properties to provide self-lubrication, reducing friction between moving parts without introducing corrosive lubricants that would compromise reliability.
3Manufacturing precision
If the adapter is made rigid to maintain stability, then positioning accuracy improves, but adaptability to different orifice orientations decreases
Solution Approach 1:
The adapter features an asymmetric design with a flat bearing surface on one side and a curved outer surface. This asymmetry allows the flat side to provide precise positioning against the orifice wall while the curved outer surface maintains compatibility with the cylindrical clip body, enabling stable positioning without sacrificing adaptability.
Data Source
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AI summary
The fastener (10) for supporting and securing a structure, particularly a cantilevered working structure, is of the type intended to be inserted through a through-hole (11) in a wall (8) from a side (6B) of the wall (8) opposite the structure. The fastener (10) comprises an elongated body (12) adapted to pass completely through the wall (8), between a first face (6B) of the wall (8), on the side opposite the structure, and a second opposite face (6A) of the wall (8), on the side of the structure, and at least one deployable member (24, 27) mounted movable relative to the body (12) between a first insertion and retraction position of the fastener (10) through the wall (8) and a second deployed position, in which it protrudes outside the body (12).The attachment (10) further includes an adapter (61) made of rigid material, mounted on the body (12), and defining a bearing area (68) against an upper internal surface (63) of the orifice (11) passing through. The body (12) and the adapter (61) further include additional means for rotational locking.