Acute-Angle Anchoring Arms Prevent Air Chambers in Fireproof Linings
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Solution Overview
Problem
Existing anchoring means for fireproof and wear-resistant linings on metal objects often result in incomplete filling between the anchoring means and the object, leading to unwanted air chambers during application, especially under difficult conditions or with certain lining materials.
Innovation Solution
The anchoring means features arms interconnected with the mid section bent at an angle of less than 90°, with free ends extending parallel to planes perpendicular to the mid section, ensuring effective filling of the space between the anchoring means and the object, preventing air chambers and enhancing robustness and ease of positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If perpendicular arms are used as in known anchoring means, then the structure is simple and robust, but air chambers form between the anchoring means and the object preventing thorough filling with lining material
Solution Approach 1:
The patent changes the bending angle parameter of the arms from 90° (perpendicular) to less than 90°, creating an acute angle configuration. This parameter modification allows the arms to better conform to the object surface and eliminates air chambers, improving filling effectiveness while maintaining structural simplicity
Solution Approach 2:
The patent introduces a second bending at the free ends of the arms, creating a multi-dimensional configuration. The arms first bend at an angle less than 90° relative to the mid section, then the free ends bend again to extend parallel to planes perpendicular to the mid section plane. This dimensional complexity prevents air chamber formation
2Reliability
If arms are bent at an angle less than 90°, then air chambers are prevented and filling is effective, but manufacturing complexity increases
Solution Approach 1:
The patent incorporates the arm bends directly into the blanked starting piece before assembly. The acute angle bends and end bends are pre-formed in the plate material, allowing the anchoring means to be attached to the object without requiring complex post-assembly bending operations. This preliminary action simplifies the overall manufacturing process despite the complex final geometry
3Manufacturing precision
If the anchoring means design is optimized to prevent air chambers, then positioning accuracy improves, but the risk of mistakes during application increases
Solution Approach 1:
The acute angle configuration of the arms creates a self-aligning geometry that naturally guides the anchoring means into correct positioning on the object. The specific angle less than 90° allows the arms to conform to the object surface, providing tactile feedback and reducing positioning errors during application
Data Source
AI summary
The invention relates to an anchoring means for providing a fireproof and/or wear resistant lining on an object made of metal, wherein the build-up of a polygonal folded base portion is intended to be fixed to the object by means of a to the object welded pin, which is provided with an anchoring thread for receiving a part attached to a polygonal mid section of the anchoring means, comprising an internal thread, wherein lips which extend transversely to said polygonal base portion, join the edges of said base portion, which lips are bended over an angle with respect to said mid section and having mutually enclosing bending lines.