Power Tool Top-Mounted Mode Switch for Compact Handle
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Solution Overview
Problem
Existing power tools with mode switches located near the trigger lead to increased handle size and inadvertent mode changes due to the positioning of the switch, which can result in operational inefficiencies.
Innovation Solution
A power tool design featuring an input control device positioned on the top portion of the motor housing, remote from the handle, generates a mode signal to sequentially switch among operational modes, including forward, reverse, and lock modes, using a controller with an electronic processor and memory to control the motor's operation based on user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the mode switch is located near the trigger, then the user can easily change operational modes, but the handle size increases and inadvertent mode changes occur
Solution Approach 1:
The mode selection functionality is extracted from the trigger area and implemented as a separate input control device positioned on the housing. This allows mode changing to be independent of trigger operation, eliminating the need for additional space near the trigger while maintaining ease of access to mode controls.
2Ease of operation
If the mode switch is located near the trigger, then the user can easily change operational modes, but inadvertent mode changes occur during trigger actuation
Solution Approach 1:
The mode selection function is extracted from the trigger mechanism and implemented as a separate input control device. This spatial separation ensures that mode changes require intentional action on a dedicated control, preventing accidental mode changes during normal trigger operation while preserving user-friendly mode switching capability.
3Volume of moving object
If the input control device is positioned on the top portion of the housing remote from the handle, then the handle size is reduced, but the user must reach further to access mode controls
Solution Approach 1:
The input control device is positioned on the top portion of the housing, utilizing the vertical dimension rather than expanding the handle's lateral or longitudinal dimensions. This allows mode controls to be accessible from the top surface of the tool, maintaining compact handle design while preserving ease of access during normal operation.
Data Source
AI summary
Power tool methods and systems are provided for controlling an operating mode of the power tool. A power tool includes a housing having a handle portion and a top portion. An input control device is located on the top portion of the housing for changing an operational mode of the power tool. The plurality of operational modes include at least a forward mode and a reverse mode. A controller includes an electronic processor and a memory storing instructions that when executed by the electronic processor configure the controller to receive a mode signal from the input control device indicating the selected one of the plurality of operational modes and operate the motor responsive to the mode signal.