Torque Wrench Tripping Assembly Feedback Mechanism
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Solution Overview
Problem
Common torque wrenches are difficult to control and predict the rotating speed of their rotating members due to the flexibility of the central pushing rod, making it hard for users to adjust the torque value accurately.
Innovation Solution
A torque wrench design that incorporates a tripping assembly with an elastic abutting member and circumferentially arranged notches, which produce sound and vibration effects when the rotating member is rotated, helping users avoid over-rotating by providing feedback on the rotating range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the central pushing rod is made flexible to enable adjustment, then the torque wrench can adjust torque settings, but the rotating member becomes difficult to control and predict in terms of rotating speed and range
Solution Approach 1:
The patent implements a feedback mechanism through the tripping assembly that provides tactile and audible feedback to the user during rotation. The elastic abutting member trips against the notches on the mandrel at predetermined intervals, creating distinct clicks or vibrations that inform the user of the rotating range and prevent over-rotation, thereby improving control over the flexible central pushing rod system.
Solution Approach 2:
The tripping assembly generates mechanical vibrations through the elastic abutting member impacting the notches during rotation. These vibrations provide sensory feedback to the user, making the rotating speed and range of the flexible central pushing rod system controllable and predictable through tactile sensation.
2Ease of operation
If the rotating member requires little effort to rotate due to flexibility, then adjustment is possible, but it becomes hard to predict the rotating range and prevent over-rotation
Solution Approach 1:
The tripping assembly provides periodic feedback through the elastic abutting member tripping against notches, creating audible clicks or tactile vibrations that mark specific rotational positions. This feedback enables the user to accurately predict and control the rotating range without requiring excessive rotational effort.
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 sound and vibration feedback enable users to more easily and accurately adjust the torque setting value, preventing over-rotation and improving control over the torque wrench.
Implementation Method 1
the elastic abutting member trips among the plurality of notches
Implementation Method 2
the vibration and sound effects can remind a user of a rotating range of the rotating member
Data Source
AI summary
A torque wrench is provided, including a main body, a driving portion, a positioning member, a torque adjusting assembly and a tripping assembly. The main body defines an axial direction. The driving portion is disposed on an end of the main body. The positioning member is fixedly disposed in the main body. The torque adjusting assembly includes an abutting member and a mandrel, and the mandrel is disposed in the main body, rotatable about the axial direction and screwed to the abutting member. The tripping assembly includes an elastic abutting member and a plurality of notches arranged circumferentially one of the elastic abutting member and the plurality of notches is disposed on the mandrel, and the other of the elastic abutting member and the plurality of notches is disposed on the positioning member.