Recessed Control Panel for Handheld Power Tool Ergonomics
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Solution Overview
Problem
Existing battery-driven handheld power tools face challenges in ease of use, manufacturing cost, weight, and preventing unintentional operator interaction with complex functionality.
Innovation Solution
A guide and control assembly featuring a recessed user interaction panel with input devices and status indicators positioned for thumb access during normal operation, protecting against accidental interactions and enhancing ergonomic design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If control devices and input buttons are added to enable operational control of the electric motor, then functionality and control capability are improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The control panel is integrated directly into the handle body, merging the control interface with the structural component. This eliminates separate control housings and reduces overall device complexity while maintaining full control functionality for motor operation
Solution Approach 2:
The handle serves multiple functions: it provides structural support for gripping, houses the control panel for motor operation, and contains status indication devices. This multi-functionality reduces the need for separate components, simplifying device complexity while enhancing control capability
2Ease of operation
If control panel and input devices are made accessible for easy operation, then ease of operation is improved, but susceptibility to unintentional interaction increases
Solution Approach 1:
The control panel is positioned on the handle surface at a location optimized for thumb access during normal operation. This localized positioning ensures ease of operation for intended use while the recessed design provides protection against accidental activation from other directions or sources
3Adaptability or versatility
If multiple control functions and status indicators are integrated into the handle, then adaptability and control capability are improved, but weight of the tool increases
Solution Approach 1:
The control panel, status indication devices, and handle structure are merged into a single integrated assembly. By using the handle itself as the housing for control components, the patent eliminates additional structural materials and reduces overall tool weight while maintaining full control capability
Solution Approach 2:
The handle is designed to perform multiple functions simultaneously: providing ergonomic gripping, housing control input devices, displaying status information, and protecting internal components. This multi-functionality eliminates the need for separate housings and mounting structures, reducing tool weight while enhancing adaptability
Data Source
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AI summary
A guide and control assembly of a battery driven portable handheld power tool (1) is provided, which guide and control assembly (10) comprises a main handle (20) of the tool, arranged to be gripped by a hand of an operator, in an operating position, so as to permit the operator to carry and guide the power tool (1) with the hand during operational use thereof, a recessed user interaction panel (30) comprising a plurality of user input devices (31, 31', 31'') and a first status indicating device (32), the user interaction panel (30) being formed in a panel receiving portion (41) of a housing (40) of the power tool (1), wherein the user interaction panel is positioned such that the user input devices (31) are reachable by a thumb of the operator when the hand is in the operating position.