Rotatable Sliding Catch for Tape Measure Grabbing Stability
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Solution Overview
Problem
Conventional tape measures have limited functionality due to small catch or end hook areas, which make it difficult to grab and measure objects from various angles, especially when the rule blade is not facing upwards, leading to sliding issues and restricted measurement capabilities.
Innovation Solution
A tape measure with a catch that is both rotatable and slidable relative to the rule blade, allowing for movement in a plane perpendicular to the rule blade's longitudinal axis, enabling the catch to accommodate different measurement scenarios by sliding and rotating, thus enhancing grabbing stability and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the catch area is made small to prevent carrying inconvenience, then the portability is improved, but the ability to grab and hook onto articles is worsened
Solution Approach 1:
The catch is designed to be rotatable relative to the rule blade, allowing it to dynamically adjust its orientation and position. This rotational capability enables the catch to adapt to different measuring scenarios while maintaining a compact size, thus improving grabbing stability without sacrificing portability.
2Device complexity
If the catch area is made small, then the device compactness is improved, but the versatility of measurement scenarios is worsened
Solution Approach 1:
The rotatable catch provides dynamic adaptability, allowing the same compact catch structure to serve multiple measurement scenarios by rotating to different orientations, thus achieving versatility without increasing device complexity.
Solution Approach 2:
The rotatable catch design enables a single catch structure to perform multiple functions across different measurement scenarios, making the compact device universally applicable to various measuring needs.
3Ease of manufacture
If the catch points downwardly relative to the rule blade, then the manufacturing simplicity is improved, but the adaptability to different blade orientations is worsened
Solution Approach 1:
The rotatable catch transforms the fixed downward-pointing design into a dynamic structure that can rotate to point in different directions, maintaining manufacturing simplicity while achieving adaptability to various blade orientations.
4Device complexity
If a conventional sliding button locking mechanism is used, then the device simplicity is improved, but the functionality for reading deployed tape is limited
Solution Approach 1:
The rotatable catch adds rotational freedom to the conventional sliding button mechanism, transforming it from a simple locking device into a versatile component that can both lock the tape and adapt to different measurement scenarios through rotation.
Data Source
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AI summary
An improved tape measure apparatus which includes a catch that is both slidable and rotatable relative to the rule blade in a plane which is perpendicular to the longitudinal axis of the rule blade when the rule blade is extended from the tape casing. In one embodiment the catch can both rotate and slide relative to the rule blade when frictional forces exceed a predefined minimum or are within a predefined range.