Multi-Window Torque Wrench with Matrix LED Indicators
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Solution Overview
Problem
Conventional wrenches face challenges in providing effective warnings for excessive torque in low-light environments or small spaces, with existing solutions being inadequate due to limited visual range and susceptibility to damage, and relying solely on sound or small LED lights that may not be noticed.
Innovation Solution
A wrench with multiple display windows, featuring two side display window lighting modules and a main display window lighting module, which use multiple colors and illumination patterns to visually indicate torque levels, accompanied by sound and tactile warnings to ensure user awareness of torque limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a small hole with LED light is used to indicate torque condition, then the wrench structure is simple, but the visual range is narrow and the LED light cannot be seen clearly by the user
Solution Approach 1:
The patent transitions from a single-point LED indicator to a planar display surface with multiple LED lights arranged in a matrix pattern. This dimensional expansion from 0D to 2D significantly increases the visual range and allows users to observe the torque condition from various angles without requiring precise alignment with a narrow viewing hole.
2Area of stationary object
If a small convex transparent surface is added to increase visual range, then the LED light becomes more visible, but the wrench becomes easily broken or damaged due to motions or being stamped by the user
Solution Approach 1:
The patent divides the display function into multiple independent LED lights arranged in a matrix, eliminating the need for a single large convex transparent surface. Each LED can be viewed from slightly different angles, providing wide visual range without requiring a protective convex structure that would compromise wrench strength.
3Device complexity
If sound warning is used to alert excessive torque, then the wrench structure is simple, but the warning is ineffective in noisy environments or when users overlook the sound
Solution Approach 1:
The patent combines multiple warning modalities: visual indicators (multiple colored LED lights showing torque levels), sound warnings (buzzer or speaker), and tactile feedback (vibration motor). This multi-sensory approach ensures that users receive torque exceedance alerts through at least one effective channel regardless of environmental noise or user attention level.
4Device complexity
If a single main display window is used, then the wrench structure is simple, but the visual range is limited and users cannot observe the display from different angles in small spaces
Solution Approach 1:
The patent implements a multi-faceted display arrangement with side display windows on multiple surfaces of the wrench body, transitioning from a single-planar display to a three-dimensional display configuration. This allows users to observe torque indicators from various angles and positions, particularly beneficial in confined work spaces where the user may not be able to position themselves directly in front of a single display window.
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 wrench provides a wide visual range, clear and immediate torque feedback, and a combination of visual, auditory, and tactile warnings, significantly reducing the incidence of accidental excessive force applications.
Implementation Method 1
Each of the two side display window lighting modules includes a plurality of side display window lighting elements which is configured to generate a plurality of side display window colors. The main display window lighting module includes a plurality of main display window lighting elements which is configured to generate a plurality of main display window colors
Data Source
AI summary
A wrench with multiple display windows includes a body, two side display window lighting modules and a main display window lighting module. The two side display window lighting modules are illuminated synchronously with each other. The two side display window lighting modules are corresponding to each other. The two side display window lighting modules, are illuminated toward a first optical axis and a second optical axis. The side display window lighting module includes side display window lighting elements configured to generate side display window colors which are turned on or turned off according to the torque. The main display window lighting module is connected to the body and illuminated toward the first optical axis. The main display window lighting module includes main display window lighting elements configured to generate main display window colors which are turned on or turned off according to the torque.