Toolless Side Handle Mounting for Power Tools
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Solution Overview
Problem
Existing power tools require tools like drivers for attaching or detaching and adjusting the side handle, which is cumbersome.
Innovation Solution
A power tool design featuring an operable portion with a mount shaft, coil spring, and control knob allows toolless attachment, detachment, and angle adjustment of the side handle, utilizing engagement pins and receiving holes for secure locking and unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a screw-based side handle attachment system is used, then the side handle can be securely attached to the tool body, but attaching or detaching the side handle requires using a driver tool which is cumbersome
Solution Approach 1:
The side handle attachment mechanism is designed to be self-servicing through the operator's direct manipulation. The operable portion engages with engagement pins that automatically lock into receiving holes when the side handle is positioned correctly, eliminating the need for external driver tools. The spring-loaded design provides automatic engagement and locking without requiring additional fastening operations.
Solution Approach 2:
The screw-based attachment system is extracted and replaced with a simplified pin-and-receiving hole mechanism. The operable portion directly manipulates engagement pins that fit into receiving holes on the tool body, removing the intermediary screw and driver tool from the attachment process. This extraction of the screw mechanism reduces the complexity of the attachment operation.
2Ease of operation
If a lock knob mechanism is used to adjust the side handle angle, then the side handle can be locked at adjusted positions, but the attachment and detachment process still requires screwing and unscrewing operations
Solution Approach 1:
The angle adjustment function and the attachment/detachment function are merged into a single integrated mechanism. The operable portion simultaneously performs both functions by manipulating the engagement pins that lock into the receiving holes. When the side handle is positioned at the desired angle, the same operable portion secures it through the engagement pin system, eliminating the need for separate lock knob operations.
Solution Approach 2:
The engagement pins are pre-positioned on the operable portion and the receiving holes are pre-positioned on the tool body. When the operator positions the side handle at the desired angle, the engagement pins are already in place to automatically engage with the receiving holes, providing immediate locking without requiring additional fastening actions. This preliminary positioning of the engagement mechanism reduces the time required for attachment and detachment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy, tool-free positioning and attachment/detachment of the side handle, enhancing user convenience and operational efficiency.
Implementation Method 1
an operable portion operable to attach or detach the side handle to or from the tool body
Data Source
AI summary
A power tool includes a side handle that can be toollessly positioned and also attached to or detached from a tool body. The power tool includes a tool body having a side surface, a side handle on the side surface of the tool body, and an operable portion operable to attach or detach the side handle to or from the tool body and to position the side handle being attached to the tool body.