Tile Cutter Reference Square Pivoting on Cutting Line
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Solution Overview
Problem
Existing electric cutters for tiles and stone slabs face difficulties in accurately detecting inclination angles and reading distances due to a reference square that is not pivotable about the cutting line, leading to measurement and alignment errors, especially when performing oblique and bevel cuts.
Innovation Solution
An electric cutter design featuring a reference square that pivots about a pin centrally located on the cutting line, with a seagull-wing configuration and extruded bars aligned on both sides of the pivoting means, allowing the cutting blade to drop below the support plane without interfering with the square, enabling precise alignment and measurement for oblique cuts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the reference square is positioned away from the cutting line to avoid interference with the circular blade, then the blade can perform cuts without obstruction, but the measurement precision and alignment accuracy deteriorate due to the offset between the rotation axis and cutting line
Solution Approach 1:
The reference square is segmented into two separate reference bars positioned on opposite sides of the cutting line. This segmentation allows each bar to be positioned optimally for its function: close to the cutting line for accurate measurement while the blade path remains clear between them, resolving the contradiction between measurement precision and cutting operation.
Solution Approach 2:
The reference square utilizes a vertical dimension by positioning the rotation axis below the support plane level. This allows the reference bars to extend above the support plane for accurate alignment and measurement, while the rotation mechanism operates below to avoid interfering with the blade's cutting path, thus resolving the spatial conflict.
2Measurement precision
If the reference square is positioned close to the cutting line to improve measurement accuracy, then the inclination angle detection improves, but the circular blade interferes with the reference square during cutting
Solution Approach 1:
The reference square is divided into two separate reference bars positioned on opposite sides of the cutting line. This segmentation creates a clear blade path between the bars while maintaining close proximity to the cutting line, eliminating interference while preserving measurement accuracy.
Solution Approach 2:
The rotation axis is positioned in the vertical dimension below the support plane, allowing the reference bars to occupy the space above the support plane close to the cutting line without interfering with the blade's horizontal cutting motion.
3Ease of operation
If a rotary pin is positioned below the support plane to allow blade passage, then the blade can cut without obstruction, but the reference square's stability and alignment capability deteriorate
Solution Approach 1:
The reference square is segmented into two reference bars that are rigidly connected, creating a stable structure that spans across the blade path. This segmentation allows the blade to pass freely below while the bars maintain stable alignment references above the support plane.
Solution Approach 2:
The rotation pin is positioned in the vertical dimension below the support plane, while the reference bars extend above the support plane to provide stable alignment references. This vertical separation allows both blade passage and stable referencing to coexist without compromising either function.
Data Source
Figure 1~1A
Figure 2~2A
Figure 3~3A
AI summary
An electric cutter for tiles and stone slabs is disclosed, of the type comprising a base (2) above which a circular blade (L) is longitudinally slidable, driven into rotation by a respective electric motor, the cutting edge of the circular blade (L) being able to drop as low as a cutting plane arranged at a lower level than the support plane of said base, a reference square (5) being further provided which consists of a support body (10), having seagull-winged plates (12a, 12b) lying on a same rotation plane, and of a pair of reference bars (21, 22) arranged aligned on the plates on both sides of pivoting means (11), the square being mounted pivoting so as to keep a centre of rotation (R) on the cutting line, the pivoting means (11) below the cutting plane and the plane of rotation of the lateral plates (12a, 12b) above the support plane of the base (2).