Movable Workpiece Support for Wide-Angle Power Saw Cutting
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Solution Overview
Problem
Conventional power saw arrangements face limitations in accommodating wider workpieces, as supplemental supports required for stability often extend into the handle space, restricting the range of angles that can be cut and reducing the usability of the saw.
Innovation Solution
The power saw arrangement incorporates rotatable or slidable supplemental supports that can be extended into the handle space for wider workpieces, providing additional support without reducing the range of rotation, by being retractable or removable from the handle space when not needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If supplemental supports are extended into the handle space to provide stable support for wider workpieces, then workpiece support stability is improved, but the range of rotation angles is reduced
Solution Approach 1:
The supplemental supports are made movable rather than fixed, allowing them to extend into the handle space when wider workpieces need support, and retract when not needed. This dynamic adjustment resolves the contradiction by providing stability only when required, preserving the full range of rotation angles for other operations.
Solution Approach 2:
The base structure is divided into fixed portions and movable supplemental support portions. The supplemental supports can be independently adjusted relative to the base, allowing the system to provide extended support for wider workpieces while maintaining the ability to achieve full rotation angles when the supplemental supports are retracted.
2Stability of the object's composition
If supplemental supports are made fixed to provide continuous stability, then workpiece support stability is improved, but device complexity increases
Solution Approach 1:
Rather than creating a complex fixed structure that always provides support, the invention uses simple movable supplemental supports that can be adjusted as needed. This reduces overall structural complexity while providing stability when required.
Solution Approach 2:
The supplemental support function is extracted as a separate, independent component that can be added or removed from the base structure. This modular approach reduces the complexity of the main base structure while providing optional support capability.
3Adaptability or versatility
If the base size is increased to accommodate wider workpieces, then workpiece width capacity is improved, but the device footprint and handle space are increased
Solution Approach 1:
Instead of increasing the permanent base size, the invention uses movable supplemental supports that can be extended from the existing base. This allows the base to accommodate wider workpieces temporarily when needed, while maintaining a compact footprint when the supplemental supports are retracted.
Solution Approach 2:
The supplemental supports extend in a direction perpendicular to the main base surface, utilizing vertical space rather than increasing horizontal footprint. This allows wider workpiece capacity without proportionally increasing the base area.
Data Source
Figure 1a
Figure 1b
Figure 1c
AI summary
A power saw arrangement (200) includes a saw blade, a base (202), a table (240) and a supplemental support (270). The base (202) defines a support surface (204) and includes a first wall and a second wall. The table (240) is movably coupled to the base (202) and includes a handle projecting therefrom into the handle space. The handle contacts the first wall at a first stop (207) and contacts the second wall at a second stop (209). The handle includes an edge opposite the table, and when said handle contacts the first stop (207), a first plane is defined by the first stop (207) and the edge and is perpendicular to the support surface (204). When the handle contacts the second stop (209), a second plane is defined by the second stop (209) and the edge and is perpendicular to the support surface (204). The first plane and the second plane define a handle space therebetween and the handle is limited to movement within the handle space by the first stop (207) and the second stop (209). The supplemental support (270) is movably coupled to the base (202) and is moveable between an extended position and a retracted position.