Circular Tile Spacer Design for Grout Line Adjustment
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Solution Overview
Problem
Conventional tile spacers are difficult to adjust without misaligning adjacent tiles due to their square or rectangular cross sections, and they cannot rotate within grout lines without pushing tiles apart, making it hard to maintain uniform spacing during tile installation.
Innovation Solution
A tile installation spacer with a disk and cylindrical spacers of varying diameters and thicknesses, allowing for rotation within grout lines to adjust tile spacing without disturbing adjacent tiles, and accommodating different grout line widths with a single piece of semi-rigid material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional spacers with square or rectangular cross sections are used, then they can maintain simple structure and ease of manufacture, but they are difficult to adjust without misaligning adjacent tiles and cannot rotate within grout lines
Solution Approach 1:
The patent applies this principle by replacing the square or rectangular cross section with a circular cross section. The circular geometry allows the spacer to rotate freely within the grout line while maintaining uniform spacing, eliminating the misalignment problem inherent in angular cross sections. The circular shape provides smooth, continuous contact with the grout line walls, enabling adjustment without disturbing adjacent tiles.
Solution Approach 2:
The patent changes the geometric parameter of the spacer cross section from angular (square/rectangular) to circular. This parameter change fundamentally alters the interaction between the spacer and grout line, allowing rotation and adjustment. The circular cross section with diameter matching the grout line width enables the spacer to rotate without changing its spacing function, resolving the contradiction between adjustability and structural simplicity.
2Reliability
If conventional spacers with square or rectangular cross sections are used, then they can be easily manufactured, but they push adjacent tiles apart when twisted or jarred, causing misalignment
Solution Approach 1:
The circular cross section eliminates the corner stresses that cause conventional spacers to push tiles apart. When the circular spacer is twisted or jarred during installation, the rounded geometry distributes forces uniformly around the circumference, preventing localized stress concentrations that would otherwise misalign tiles. The circular shape maintains constant distance from tile edges, ensuring reliable alignment maintenance.
Solution Approach 2:
The circular cross section acts as a built-in cushioning mechanism that anticipates and distributes installation stresses. The rounded geometry provides inherent stress distribution that prevents the spacer from transmitting disruptive forces to the tiles, thereby maintaining alignment reliability during the installation process.
3Ease of operation
If conventional spacers with square or rectangular cross sections are used, then they can be easily installed, but minor adjustments to adjacent tiles prior to adhesive curing cannot be made without causing the spacer to shift or twist
Solution Approach 1:
The circular cross section enables the spacer to rotate freely while maintaining stable positioning. The uniform circular geometry allows the spacer to accommodate minor adjustments by rotating to different orientations without shifting or twisting, as the circular shape maintains constant radial distance from the center. This provides both adjustment capability and position stability simultaneously.
Solution Approach 2:
The circular cross section introduces dynamic adaptability to the spacer, allowing it to rotate and reorient itself during installation. This dynamic capability enables the spacer to accommodate minor adjustments to tile positions while maintaining its spacing function, whereas the fixed angular geometry of conventional spacers creates rigid constraints that cause shifting during adjustment.
4Strength
If spacers with larger depth are used for brick, cement block and larger tile forms, then they can provide sufficient spacing support, but they increase the complexity of installation and adjustment
Solution Approach 1:
The circular cross section provides uniform spacing support throughout the depth of the spacer, eliminating the need for complex adjustment mechanisms. The circular geometry maintains consistent radial distance from tile edges, providing reliable spacing support while allowing easy installation and adjustment through simple rotation, regardless of spacer depth.
Data Source
AI summary
A tile installation spacer includes a circular disk having opposed, parallel surfaces, and opposed cylindrical first and second spacers extend away from the respective surfaces of the disk. The disk, the first cylindrical spacer, and the second cylinder each have a diameter. The diameter of the disk is greater than the diameter of the first cylindrical spacer and the diameter of the second cylindrical spacer, and the diameter of the first cylindrical spacer is greater than the diameter of the second cylindrical spacer.