Corner Guiding Bearing Device for Router Stability
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Solution Overview
Problem
Existing portable power tool bearing devices, such as routers, lack effective corner guiding and material removal capabilities, particularly when operating around corners and requiring stable positioning and efficient material handling.
Innovation Solution
A corner guiding unit with a main body unit in the form of a sector of a circle, featuring perpendicularly aligned guiding edges and an arc connecting them, along with a guiding-device receiving unit for secure attachment, enhances corner navigation and material removal by providing a large bearing surface and ploughing effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional bearing device is used, then the device can perform basic routing operations, but it lacks effective corner guiding capability and cannot navigate around corners effectively
Solution Approach 1:
The main body unit is designed with a sector of a circle basic form, featuring curved outer contour including an arc connecting two straight guiding edges. This curvature enables the bearing device to navigate around corners effectively by conforming to corner geometries, directly resolving the corner guiding capability deficiency of conventional bearing devices
2Adaptability or versatility
If the main body unit is designed with a sector of a circle form, then corner navigation and material removal are enhanced, but the device complexity increases
Solution Approach 1:
The main body unit is segmented into distinct functional elements: two straight guiding edges for corner alignment, an arc connecting them for curvature navigation, and a large bearing surface for stable operation. This segmentation allows each element to perform its specific function efficiently while maintaining overall simplicity
3Stability of the object's composition
If a large bearing surface is provided, then stable positioning and ploughing effect are achieved, but the area of the main body unit increases
Solution Approach 1:
The bearing surface is designed with non-uniform distribution of functional properties: a large area provides stable positioning and ploughing effect, while specific regions incorporate guiding edges with precise geometries for corner navigation. This local quality differentiation allows the bearing surface to perform multiple functions without requiring excessive overall area
4Measurement precision
If guiding edges are aligned perpendicularly, then corner guidance precision is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The perpendicular guiding edges are connected by an arc, transforming the sharp 90-degree corner into a curved transition. This curvature provides tolerance to manufacturing variations while maintaining corner guidance precision, as the arc can accommodate slight deviations without compromising the perpendicular alignment of the main guiding edges
Data Source
AI summary
A bearing device of a portable power tool, in particular a router, has at least one main body unit. The main body unit is formed as a corner guiding unit and has a bearing surface and a lead-through opening. The bearing surface is configured to bear on a workpiece. The lead-through opening is configured to receive an insert tool configured to perform work on a workpiece.