Adjustable Miter Saw Fence Insert for Cut Height
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Solution Overview
Problem
Miter saws require the fabrication and installation of a separate sacrificial fence to increase cut height capacity, which is time-consuming and results in frequent discarding of materials.
Innovation Solution
An adjustable fence assembly with a fence insert that can be positioned in multiple configurations, allowing for increased cut height capacity without the need for a separate sacrificial fence, by offsetting the work piece abutment surface to intersect a perpendicular axis, thereby enhancing both cut height and width capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If a sacrificial fence is attached to increase cut height capacity, then the cut height capacity is improved, but the loss of time for fabrication and installation increases
Solution Approach 1:
The fence insert is made adjustable and repositionable along the fence body, allowing dynamic reconfiguration between different cutting positions. This eliminates the need for permanent sacrificial fences, as the same fence can be repositioned for different cut height requirements, thereby reducing fabrication and installation time.
Solution Approach 2:
The fence assembly is divided into a fence body and a separate fence insert that can be independently positioned and secured. This segmentation allows the insert to be moved to different locations on the fence body without fabricating an entirely new fence, thus saving time on fabrication and installation.
2Length of stationary object
If a sacrificial fence is attached to increase cut height capacity, then the cut height capacity is improved, but the loss of material increases
Solution Approach 1:
Instead of discarding sacrificial fences after use, the fence insert is designed to be removed, cleaned, and reinstalled on the fence body for future use. This recovery and reuse of the fence insert eliminates material waste associated with single-use sacrificial fences.
Solution Approach 2:
The fence insert serves multiple functions by being repositionable to different locations on the fence body, allowing it to accommodate various cut height requirements. This multi-functionality eliminates the need for multiple different sacrificial fences, reducing material consumption.
3Length of stationary object
If the fence insert is repositioned to increase cut height capacity, then the cut height capacity is improved, but the device complexity increases
Solution Approach 1:
The fence insert incorporates movable and adjustable features that allow it to be repositioned along the fence body. While this adds some complexity, it enables dynamic adaptation to different cutting requirements without requiring multiple separate fences, ultimately simplifying the overall system.
Solution Approach 2:
The fence insert fits within or along the fence body structure, with the insert being contained within the overall fence assembly. This nested configuration allows the insert to be integrated into the existing fence structure, minimizing additional complexity while enabling repositioning capability.
Data Source
AI summary
A miter saw includes a base, a turntable rotatable in relation to the base and including a work piece support surface, a support assembly attached to the turntable, and a saw assembly attached to the support assembly and configured to cut a work piece supported on the turntable. A fence assembly includes an elongate fence body that extends along a first axis. The elongate fence body is supported by the base and positioned over the turntable. The fence body has a first connecting structure, and a fence insert defining an elongate work piece abutment surface and having a second connecting structure. The fence assembly is positionable in a first configuration and a second configuration. In the first configuration, the second connecting structure cooperates with the first connecting structure to secure the fence insert at a first position in relation to the fence body. When the fence assembly is positioned in the second configuration, the second connecting structure cooperates with the first connecting structure to secure the fence insert at a second position in relation to the fence body. A second axis intersects the first axis in a perpendicular manner. When the fence insert is secured at the first position, the elongate work piece abutment surface is positioned to intersect the second axis at a first point. When the fence insert is secured at the second position, the elongate work piece abutment surface is positioned to intersect the second axis at a second point, and the first point is offset from the second point along said second axis.