Adjustable Insulation Fastener With Nested Sliding Parts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fixing devices for thermal and sound insulating materials lack sufficient spacing adjustment capacity and shock resistance, making them impractical and inefficient for use with varying thicknesses of insulating materials.
Innovation Solution
A device comprising a first part with a flat base and an open tube, and a third part with a perforating end that can be clipped and secured to the second part, allowing for adjustable spacing and secure rotation, featuring notched surfaces and resilient elements for axial and rotational locking, ensuring easy assembly and adequate impact resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-spacing fastening device is used, then the device structure is simple, but it cannot adapt to varying insulation material thicknesses
Solution Approach 1:
The patent implements a dynamic spacing adjustment mechanism where the second piece can slide along the tube of the first piece, and the third piece can slide along the tube of the second piece. This allows the spacing between furring strips to be adjusted dynamically to match different insulation material thicknesses, resolving the contradiction between adaptability and structural simplicity.
2Adaptability or versatility
If a multi-component fastening device is used to achieve adjustment, then the spacing adjustment range increases, but the device complexity and number of parts increases
Solution Approach 1:
The patent employs a nested structure where the third piece is inserted into the tube of the second piece, which itself is inserted into the tube of the first piece. This nesting arrangement allows multiple adjustment functions to be integrated within a compact structure, achieving wide spacing adjustment without proportionally increasing the number of parts.
Solution Approach 2:
The fastening device is divided into three modular pieces that can be independently manufactured and assembled. Each piece contains notched surfaces for engagement and sliding mechanisms for adjustment. This segmentation allows for standardized mass production of individual components while maintaining overall system adaptability.
3Strength
If a simple clipping mechanism is used, then the ease of installation is high, but the shock resistance and impact strength is insufficient
Solution Approach 1:
The fastening device combines multiple engagement mechanisms: notched surfaces for primary engagement, resilient tabs for secondary engagement and shock absorption, and serrated surfaces for friction-based holding. This composite approach to the fastening mechanism provides both ease of installation through simple clipping motion and high shock resistance through multiple engagement points.
Solution Approach 2:
The resilient tabs are designed to deflect and absorb impact forces before they reach the primary notched engagement. This beforehand cushioning protects the main engagement mechanism from shock loads, providing both easy installation and high shock resistance.
4Strength
If the fastening device requires precise alignment, then the engagement strength is high, but the ease of operation and installation speed decreases
Solution Approach 1:
The notched surfaces are designed so that the notches on the second piece automatically engage with the protrusions on the first piece during the clipping motion, without requiring precise pre-alignment. The resilient tabs similarly self-align and engage during installation. This self-service alignment mechanism maintains high engagement strength while significantly improving installation speed and ease of operation.
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
The device (900) has a first piece (901) provided with a tube (920) and including first connecting units connected with a first object e.g. furring (F1). A second piece (902) comprises second connecting units e.g. head (716), connected with a second object. The tube and a third piece (903) are provided in a first relative angular position to slide into one another when respective axes are coincident, and are provided in a second relative angular position to immobilize in translation with the first piece and the third piece relative to one another so as to adjust a spacing between the objects. An independent claim is also included for a method for applying an insulating material on a wall.