Cutting Machine Tilt Lever for Quick Fine Angle Adjustment
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Solution Overview
Problem
Existing tabletop cutting machines require time-consuming and cumbersome processes for fine adjustments of the tilt angle, and their structures can be complicated, especially when using smaller racks or multiple intermediate gears.
Innovation Solution
A cutting machine with a tilting member and a lever member that allows for fine adjustment of the tilt position without the need for unlocking the tilting locking member, utilizing a fulcrum and load point configuration that provides leverage for intuitive and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a locking screw is loosened to adjust the tilt angle, then the tilt position can be adjusted, but the adjustment process becomes time-consuming and troublesome
Solution Approach 1:
The invention extracts the fine adjustment function from the locking mechanism. The fine adjuster operates independently without requiring the locking screw to be loosened, separating the locking function from the adjustment function and enabling continuous operation without interruption
Solution Approach 2:
The invention segments the tilt adjustment into two independent systems: coarse adjustment via the locking screw and fine adjustment via the fine adjuster. This segmentation allows each system to operate independently, eliminating the need to loosen the locking screw for fine adjustments
2Device complexity
If a small rack is used for fine adjustment, then the structure becomes compact, but multiple intermediate gears are required which complicates the structure
Solution Approach 1:
The invention uses an arm as an intermediary element that directly connects the effort point to the load point on the tilting member. This eliminates the need for intermediate gears while still providing the necessary mechanical advantage for fine adjustment with a compact rack
Solution Approach 2:
The invention replaces the complex gear train system with a direct lever arm mechanism. The arm acts as a lever that provides mechanical advantage without requiring multiple intermediate gears, simplifying the overall structure while maintaining compact dimensions
3Force
If the distance between fulcrum and effort point is greater than between fulcrum and load point, then operational force is reduced, but the lever arm length increases
Solution Approach 1:
The invention optimizes the geometric parameters of the lever arm, specifically the distances from the fulcrum to the effort point and from the fulcrum to the load point. By carefully selecting these parameters, the system achieves favorable mechanical advantage with minimized lever arm length, reducing operational force requirements while maintaining compact dimensions
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
Enables quick and simple fine adjustment of the tilt position with reduced operational force, improving the operability and simplifying the structure of the cutting machine, eliminating the need for complex unlocking procedures and minimizing resistance during normal positioning operations.
Implementation Method 1
a lever member (51) including a fulcrum (51X) directly or indirectly coupled to the table (3) in a manner rotatable about an axis
Implementation Method 2
an effort point (51Z) extending from the fulcrum (51X) and located at a distance from the fulcrum (51X) greater than a distance between the fulcrum (51X) and the load point (51Y)
Data Source
AI summary
A fine adjuster for finely adjusting the lateral tilt position of a cutting machine body has improved operability. A cutting machine includes a table, a cutting machine body, a tilting member supporting the cutting machine body in a manner laterally tiltable relative to the table, a tilting locking member, and a lever member to adjust the tilt position of the cutting machine body. The lever member includes a fulcrum coupled to the table in a manner rotatable about an axis, a load point coupled to the tilting member, and an effort point extending from the fulcrum and located at a distance from the fulcrum greater than a distance between the fulcrum and the load point.