Insulation Mount with Segmented Cutting Spirals
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Solution Overview
Problem
Existing insulating material holders cause material waste and damage to insulation panels due to tearing and irregular cuts when fastening, resulting in crater-shaped depressions and bumps.
Innovation Solution
The insulating material holder features merging cutting spirals in the front section forming a multiple cutting spiral arrangement with radially extending, wedge-shaped cutting edges that reduce material resistance and a single-threaded cutting helix in the rear section with a large diameter, allowing for a clean cut without tearing the material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional cutting spirals are used in insulating material holders, then the holder can cut into the insulation panel, but the insulation material tears on the outer circumference causing crater-shaped depressions and bumps
Solution Approach 1:
The cutting spiral is divided into multiple discrete cutting edges spaced around the circumference, with each edge responsible for a specific angular position. This segmentation prevents the continuous spiral from tearing the material while maintaining effective cutting action.
Solution Approach 2:
The cutting edges are designed with specific geometric properties (sharp angles, proper spacing, varying depths) to optimize cutting performance at each location around the circumference, ensuring clean cuts without material tearing.
2Strength
If cutting spirals with large diameter are used, then the holder provides sufficient load-bearing capacity, but the holder causes material waste and damage due to tearing
Solution Approach 1:
The large-diameter cutting spiral is segmented into multiple discrete cutting edges, maintaining the large diameter for load-bearing capacity while eliminating the continuous tearing action that causes material waste.
Solution Approach 2:
The holder combines a large-diameter structure for strength with discrete cutting edge geometry, creating a composite functional design that achieves both load-bearing capacity and clean cutting without material waste.
3Productivity
If multiple cutting helices are spaced axially from one another, then the holder can effectively cut into the insulation panel, but the insulation material tears on the edges of the cutting spirals
Solution Approach 1:
Each cutting helix is segmented into discrete cutting edges around its circumference, and multiple such helices are spaced axially. This maintains cutting efficiency through multiple active edges while preventing material tearing through the discrete edge design.
Solution Approach 2:
The solution addresses the tearing problem by transitioning from a continuous spiral in one dimension to discrete edges distributed in both axial and circumferential dimensions, achieving efficient cutting without material damage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design ensures a clean cut into the insulating material without tearing, reducing material waste and damage, and enhances the stability of the holder for effective fastening with improved cutting behavior and load-bearing capacity.
Implementation Method 1
starting from the shank to the edge of the Cutting helixes extending radially over the width of the helix face, downwardly protruding cutting edge is formed
Implementation Method 2
the shank has a first portion and spaced along its length a second portion with helical circumferential cutting helices
Data Source
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AI summary
The invention relates to an insulation material holder (1) for fastening insulation boards or similar insulating materials to a substrate, consisting of a central, sleeve-like shaft (2) provided with a longitudinal bore for the passage of a fastening means, wherein the rear shaft end (2a) in the mounting direction (3) is designed with a rotationally fixed internal polygon for attaching a mounting tool, and the shaft (2) has a first section (I) and, spaced apart along its length, a second section (II) with helically circumferential cutting helixes (4; 5a, 5b, 5c).In such an insulation holder, a clean cutting behavior is achieved by the fact that the cutting helixes (5a, 5b, 5c) of the first, front section (I) in the assembly direction are provided with multiple turns and at least on the surfaces (6) of the cutting helixes (5a, 5b, 5c) that lead forward in the assembly direction (3) at least one radial cutting edge (8a; 8b) extending from the shaft (2) to the edge of the cutting helix (5a, 5b, 5c).