Torque Tool Asymmetric Engagement Mechanism
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Solution Overview
Problem
Conventional torque tools lack accurate positioning and intuitive operation of the rotatable adjusting member, making it difficult to adjust torque settings effectively.
Innovation Solution
A torque tool design featuring a main body with a driving portion and an adjusting mechanism, where the adjusting member is rotatably disposed and includes second engaging portions with varying included angles for stable engagement and axial movement, allowing precise adjustment of torque settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rotatable adjusting member is screwed with the main body, then the torque adjustment function is achieved, but the positioning accuracy after adjustment deteriorates
Solution Approach 1:
The adjusting member is divided into multiple segments with engaging portions that can selectively engage with corresponding portions on the main body. This segmentation allows the adjusting member to be rotated for torque adjustment while providing discrete, accurate positioning stops at predetermined angles, resolving the contradiction between rotational adjustability and positioning accuracy.
Solution Approach 2:
Engaging portions act as intermediaries between the adjusting member and the main body. These engaging portions provide both the mechanical connection for torque transmission and the positioning function through selective engagement at specific angular positions, eliminating the need for continuous screw threading while maintaining both adjustability and precision.
2Ease of operation
If the rotatable adjusting member is disposed on the end of the main body opposite to the working portion, then the torque adjustment mechanism is complete, but the operational intuitiveness deteriorates
Solution Approach 1:
Instead of placing the adjusting member at the conventional remote location on the main body, the invention positions it at the driving portion where the user naturally applies torque. This inversion of the conventional layout makes the adjustment operation intuitive and immediate, as the user can feel and control the torque setting at the point of application.
3Stability of the object's composition
If multiple second engaging portions are arranged symmetrically, then the engagement stability is improved, but the positioning accuracy deteriorates
Solution Approach 1:
The engaging portions are arranged asymmetrically rather than symmetrically around the adjusting member. This asymmetric arrangement creates unique engagement positions that provide both stable mechanical engagement and precise, unambiguous positioning. The asymmetric geometry ensures that each engaging portion corresponds to a specific angular position, preventing rotational ambiguity while maintaining engagement stability.
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
The design enables convenient and accurate adjustment of torque settings, preventing over-tightening and enhancing operational ease by providing stable engagement and smooth operation of the adjusting mechanism.
Implementation Method 1
the adjusting member is screwed with the torque adjusting shaft. When turning the rotatable adjusting member, the torque adjustment shaft is driven by the rotatable adjusting member to move axially
Implementation Method 2
The driving portion is disposed on an end of the main body and is freely rotatable when receiving a torque larger than a predetermined torque
Data Source
AI summary
A torque tool is provided, including: a main body, a driving portion, a torque mechanism and an adjusting mechanism. The main body defines an axial direction. The driving portion is disposed on an end of the main body. The torque mechanism is non-rotatably disposed within the main body. The adjusting mechanism includes a plurality of first engaging portions disposed on the main body and an adjusting member rotatably disposed on the main body, and the adjusting member includes a plurality of second engaging portions releasably engaged with the plurality of first engaging portions. The main body defines a center line parallel to the axial direction, and as viewed in the axial direction, hypothetical lines extending between the plurality of second engaging portions and the center line define a plurality of included angles, and at least two of the plurality of included angles have different angle sizes.