Indexed Auxiliary Handle Assembly for High-Torque Power Tools
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Solution Overview
Problem
Auxiliary handles on power tools can be uncomfortable or impractical for high-torque applications and may cause tools to be awkward to carry and store when not in use.
Innovation Solution
An adjustable auxiliary handle assembly with an indexing mechanism, slidable latching mechanism, and a handle base that allows the longitudinal handle to rotate and lock in a position convenient for the operator, featuring a second switch for safe operation and one-handed adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an auxiliary handle is added to provide stability and safety for high-torque applications, then the operator's control and stability are improved, but the tool becomes awkward to carry and store when not in use
Solution Approach 1:
The auxiliary handle is made rotatable relative to the tool body through a indexing mechanism, allowing it to change position dynamically. When not in use, the handle can be rotated to a compact position for easy carrying and storage. When needed, it can be positioned to provide optimal stability and control for high-torque applications.
Solution Approach 2:
The handle assembly is divided into separable components including the auxiliary handle, indexing mechanism, and latching mechanism. This segmentation allows the handle to be independently positioned and adjusted, enabling it to serve stability functions when needed while being reconfigurable for compact storage when not in use.
2Reliability
If a fixed auxiliary handle is used to ensure stability during high-torque operation, then the operator's safety and control are improved, but the handle cannot be adjusted for different operating conditions or user preferences
Solution Approach 1:
The indexing mechanism enables the auxiliary handle to be dynamically repositioned to multiple discrete angular positions around the tool body. This allows the handle to adapt to different operating conditions, user preferences, and application requirements while maintaining a secure locked position for safety during high-torque operations.
Solution Approach 2:
The rotatable auxiliary handle serves multiple functions: it provides stability for right-handed users at one position, can be repositioned for left-handed users, and can be adjusted for different task requirements. The same handle structure universally accommodates various operating scenarios through its indexing capability.
3Adaptability or versatility
If a rotatable auxiliary handle with indexing mechanism is implemented to improve adaptability and ease of carrying, then the tool's versatility and portability are improved, but the device complexity increases
Solution Approach 1:
The indexing mechanism is segmented into distinct functional components: the rotatable handle, the indexing mechanism with indexed positions, and the latching mechanism. This segmentation allows each component to perform its specific function independently, simplifying the overall design and making the complexity manageable through modular architecture.
Solution Approach 2:
The latching mechanism automatically engages with the indexing positions to secure the handle at selected angles without requiring additional fastening steps. The mechanism self-locks into place, providing secure positioning while minimizing the complexity of user operation and reducing the need for complex control systems.
Data Source
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AI summary
A power tool 100) comprises an adjustable auxiliary handle assembly (108) that facilities safe use of the tool by the operator while allowing convenient carry and storage of the tool when not in use. The adjustable auxiliary handle assembly comprises an indexing mechanism that includes an angled connector (114), a slidable latching mechanism (126) and a handle base (130). The indexing mechanism allows a longitudinal handle to rotate and be locked in a position convenient and comfortable to the operator. The indexing mechanism is adjustable and can be operated with one hand (e.g., one-handed operation). The latching mechanism holds the auxiliary handle position in place while allowing the power tool to be used in high-torque/high load applications.