Color-Coded Torque Tool Bits for Grease-Resistant Identification
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Solution Overview
Problem
Existing torque tools lack effective methods for identifying the size and torque values, often resulting in user errors due to grease-covered inscriptions and the need to memorize color correlations, leading to incorrect tool selection and potential damage to workpieces.
Innovation Solution
A torque tool design featuring multiple bits with colored areas, a handle, and a scale ring, where the handle is connected to a selected bit, and the scale ring is rotated to align a pointer with corresponding colored areas, allowing users to easily identify the maximum torque value without memorization or calculation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If inscriptions are used to show tool size, then tool identification is provided, but the inscriptions are covered by grease and difficult to read
Solution Approach 1:
The patent applies color coding to bit identifiers where different colors correspond to different bit sizes. This allows users to quickly identify bit size by color without needing to read inscriptions that may be covered by grease or require flipping the tool over.
2Loss of information
If a color chart with numerals is used, then tool size indication is provided, but users must memorize color-numeral correspondence
Solution Approach 1:
The patent uses a standardized color-coding system where each color directly corresponds to a specific bit size range. This eliminates the need for users to memorize arbitrary color-numeral correspondences, as the colors become intuitive visual cues for size selection.
3Reliability
If users bring all bit sizes to working site, then correct bit can be found, but it becomes a burden and time-consuming
Solution Approach 1:
The color-coded identification system allows users to quickly identify the correct bit size at a glance without having to bring all bits to the working site. The visual color cues enable rapid selection, reducing both the burden of carrying multiple bits and the time required to find the correct size.
4Device complexity
If no torque identification is provided, then tool simplicity is maintained, but users cannot determine adequate torque value
Solution Approach 1:
The patent extends the color-coding system to indicate torque values. Different colors or color combinations on the bit or handle communicate the maximum torque capacity, allowing users to select appropriate bits and apply correct torque without complex markings or calculations.
Data Source
AI summary
A torque tool includes multiple bits, a handle, a pointer and a scale ring. Each of the bits includes a colored area. In use, the handle is connected to a selected one of the bits. The handle is operable to set multiple maximum values of torque transferable to the bit from the handle corresponding to the colored areas of the bits. The pointer is formed on the handle. The scale ring includes multiple colored areas corresponding to the colored areas of the bits. The scale ring is rotated around the handle as the handle is operated to set the maximum values of torque, thereby aligning the pointer with one of the colored areas of the scale ring corresponding to the colored area of a selected one of the bits.