Miter Saw Stop Device with Stationary Angle Bisector
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Solution Overview
Problem
Existing miter saw stop devices are cumbersome and prone to errors in angle calculation, making it difficult to achieve accurate cuts, especially when trying to miter two complementary strips, as errors are only recognized after the strips are joined, making corrections impossible.
Innovation Solution
A stop device for a miter pull saw with a carrier and two stop means that are pivotable about a common axis, coupled via an adjustment mechanism, allowing the angle bisector to remain stationary, and featuring a rotatable support and locking mechanisms to ensure precise adjustments and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the saw is set to half the angle (angle bisector) and a corresponding bar is placed against a stop for mitering, then it is possible to miter saw elements for lining a room corner, but the procedure is cumbersome and errors in angle calculation are only recognized after sawing when correction is no longer possible
Solution Approach 1:
The patent introduces a stop device with two stop means that act as an intermediary between the user and the saw blade. The stop means are coupled via an adjustment mechanism to maintain a stationary angle bisector relative to the carrier, providing a physical reference that eliminates complex angle calculations and prevents errors
2Adaptability or versatility
If the saw is pivoted by the measured angle into the opposite half of the support to miter the second complementary strip, then it is possible to complete the mitering process, but the procedure becomes even more cumbersome and time-consuming
Solution Approach 1:
The stop device allows preliminary setting of the desired total angle by transferring it directly to the stop means using a bevel. The adjustment mechanism pre-configures the stop means to maintain a stationary angle bisector, eliminating the need for time-consuming pivoting operations and enabling direct mitering of both strips
Solution Approach 2:
The patent uses a bevel to copy the desired total angle directly onto the stop means. This copying method eliminates complex angle calculations and multiple pivoting operations, allowing direct setting of the correct miter angle for both strips
3Manufacturing precision
If two stop means are coupled to one another via an adjustment mechanism to maintain a stationary angle bisector, then angle setting becomes more accurate, but the device complexity increases
Solution Approach 1:
The patent merges two stop means into a single integrated unit coupled via an adjustment mechanism. This combination allows the stop means to move relative to the carrier while maintaining a stationary angle bisector, achieving accurate angle setting without requiring separate adjustment procedures for each stop mean
Data Source
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AI summary
The present invention relates to a stop device (30) in particular for a miter saw, comprising a carrier (32) with a support (36) for a workpiece to be machined and two stop means (50), wherein the stop means (50) are displaceable relative to the carrier (32) about a common pivot axis such that an angle bisector of an angle enclosed by them remains fixed to the carrier (32) when the stop means (50) are displaced, and wherein at least a part of the support (36) is rotatable at least section by section about a rotation axis perpendicular to it relative to the carrier (32).