Portable Circular Saw Controller Layout for Blade Line Visibility
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Solution Overview
Problem
Portable circular saws face challenges in achieving a compact design while maintaining visibility of the display portion during operation, as existing configurations often position the controller and display behind the electric motor, obstructing the user's view of the saw blade and marking line.
Innovation Solution
The controller and display portion are positioned forward and tilted upward relative to the electric motor, allowing them to be within the user's line of sight, reducing the device's length in the front-to-rear direction and maintaining visibility of the saw blade and marking line without obstructing the user's view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the controller and display portion are disposed behind the electric motor, then the device length in front-to-rear direction is reduced, but the user's view of the saw blade and marking line is obstructed
Solution Approach 1:
The controller is repositioned from a horizontal arrangement (behind the motor) to a vertical arrangement (above the motor), utilizing the up-to-down dimension. This dimensional transition allows the display portion to be positioned above the rotation shaft without increasing the front-to-rear length, while simultaneously placing it within the user's line of sight for easy viewing during operation.
2Ease of operation
If the controller is positioned to be within the user's line of sight, then visibility is improved, but the device length in front-to-rear direction increases
Solution Approach 1:
The display portion is positioned above the rotation shaft rather than extending the device in the front-to-rear direction. By utilizing the vertical space above the motor, the display becomes visible to the user without increasing the device's longitudinal length, effectively resolving the contradiction between visibility and compactness.
3Length of moving object
If the controller is disposed above the base in front of the rotation shaft and tilted frontward, then the device length is minimized and visibility is maintained, but the controller configuration becomes more complex
Solution Approach 1:
The controller is designed with a tiltable structure that can be adjusted to an optimal angle for viewing. The tilting mechanism allows the controller to be positioned at an angle that minimizes device length while maintaining visibility, and the dynamic adjustment capability enables the user to optimize the viewing angle during operation, making the complex configuration adaptable and user-friendly.
Data Source
AI summary
A controller 50 is disposed to the front relative to a rotation shaft 11d of an electric motor 11 above a base 2, so as to be tilted in the up-to-down direction as it extends frontward.