Projected Corner Column Curved Chamfering Pattern Continuity
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Solution Overview
Problem
Conventional projected corner columns exhibit visible chamfered parts with flat surfaces, leading to an odd sensation and discontinuity in the pattern when exposed to sunlight, due to misalignment and adhesive protrusions during the bonding process of ceramic building boards with embossed patterns.
Innovation Solution
A projected corner column is formed by bonding board pieces with a concavo-convex surface pattern, where the chamfered part at the apex corner has a narrow width and a continuous curved surface, matching the embossed pattern, using a moisture-curable adhesive and a specialized chamfering apparatus to create a concavo-convex surface that blends with the surrounding pattern, reducing visibility and maintaining the natural appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If conventional chamfering is applied using a tenoner cutting machine, then adhesive protrusions can be removed, but the chamfered part becomes a wide flat surface that is highly visible and creates an odd sensation
Solution Approach 1:
The invention replaces the conventional flat chamfered surface with a curved surface having a radius of curvature of 5mm or more. This curvature allows the chamfered part to follow the contour of the embossed pattern, creating a natural appearance that blends with the surrounding surface rather than creating a visible flat transition zone.
Solution Approach 2:
The chamfering process is applied locally to match the specific embossed pattern at each position. The cutting depth and curvature are adjusted to follow the local contour of convex stripes and concave grooves, ensuring that the chamfered part maintains the same visual characteristics as the surrounding patterned surface.
2Object-generated harmful factors
If conventional chamfering creates a wide flat surface, then adhesive protrusions are removed, but the shade on the chamfered part becomes different from the patterned surface
Solution Approach 1:
The curved surface with radius of curvature of 5mm or more ensures that light reflects and shadows form in a manner consistent with the surrounding embossed pattern. This curvature prevents the creation of flat surfaces that would generate uniform, unnatural shading different from the textured patterned areas.
Solution Approach 2:
The invention changes the geometric parameters of the chamfered surface from a flat plane to a curved surface with specific radius constraints. This parameter change fundamentally alters how light interacts with the surface, making the shading characteristics match the surrounding patterned areas.
3Manufacturing precision
If the apex corner is subjected to chamfering, then misalignment and adhesive protrusion are removed, but the continuity of the embossed pattern is broken
Solution Approach 1:
The curved chamfered surface follows the contour of the embossed pattern, allowing the visual continuity of convex stripes and concave grooves to be maintained across the bonded interface. The curvature enables the pattern to flow naturally over the joint rather than being interrupted by a flat transition surface.
Solution Approach 2:
The chamfering is applied with local adjustments to match the specific embossed pattern at each position. The cutting parameters are varied locally to preserve the visual characteristics of the pattern, ensuring that convex stripes and concave grooves appear continuous across the bonded surface.
4Object-generated harmful factors
If a narrow chamfered part is formed, then visibility is reduced, but the apparatus complexity increases
Solution Approach 1:
The curved surface profile is achieved through a grinding wheel with a specific radius of curvature, which naturally creates the desired narrow chamfered part with continuous curvature. This approach reduces visibility while the wheel-based mechanism keeps the apparatus relatively simple compared to more complex CNC or multi-axis systems.
Solution Approach 2:
The grinding wheel's own geometry (its radius of curvature) directly determines the curvature of the chamfered surface. The wheel essentially serves its own function of creating the curved profile through its rotational contact, eliminating the need for additional complex positioning or control mechanisms.
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 solution results in a chamfered part that is less visible, generating shades similar to the surface pattern, thus maintaining the continuity of the embossed patterns and providing a high-grade, natural appearance without an odd sensation, even when exposed to light.
Implementation Method 1
bonding board pieces with a concavo-convex surface pattern, where the chamfered part at the apex corner has a narrow width and a continuous curved surface, matching the embossed pattern, using a moisture-curable adhesive
Data Source
AI summary
The present invention provides a projected corner column A1 used for an external corner part of a wall of a building, in which a narrow chamfered part 8 is formed on an apex corner 3 of the projected corner column A1, the narrow chamfered part 8 has a continuous curved surfaces 8a, 8b rather than a flat surface so that, when the projected corner column A1 is exposed to a daytime sunlight, light parts and shade parts similar to light parts S and shade parts D that generate on surface patterned parts of a board piece 1a generate on the chamfered part 8, whereby the chamfered part 8 on the apex corner 3 of the projected corner column A1 becomes less visible as far as possible, and shades similar to the shades (S, D) that generate on the surface patterned parts generate on the chamfered part 8 to give a continuity to the patterns on the left and right board pieces 1a, 1a.