Measuring Tape Mounting via Roller Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing angle measuring devices face challenges in achieving precise angular positioning due to uneven stress conditions and static friction when mounting a measuring tape on a rotating object with a large diameter, leading to short-period errors in angle measurements.
Innovation Solution
A method involving the even distribution of tensioning force along the measuring tape by supporting it at a distance from the peripheral surface using rollers, eliminating static friction and ensuring homogeneous stress over the circumference, allowing the tape to be mounted with minimal friction and preventing slipping during measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the measuring tape is stretched over the convexly curved peripheral surface, then the installation is simple, but static friction causes locally different stress conditions leading to measurement errors
Solution Approach 1:
A support device is introduced as an intermediary between the measuring tape and the peripheral surface. This support device includes rollers that allow the measuring tape to pass through with minimal friction, preventing the static friction that would otherwise cause locally different stress conditions and measurement errors.
Solution Approach 2:
The direct mechanical contact between the measuring tape and the peripheral surface is replaced by a roller-based support system. The rollers convert static friction into dynamic rolling friction, significantly reducing the frictional forces that cause stress variations in the measuring tape.
2Device complexity
If clamping force is applied at one end only, then the mounting is simple, but uneven tension distribution occurs over the circumference
Solution Approach 1:
The clamping force application is segmented into multiple points around the circumference. Instead of applying force at a single location, the support device distributes the clamping force through multiple rollers positioned at different locations, ensuring uniform tension distribution along the entire measuring tape.
3Force
If the measuring tape is in direct contact with the peripheral surface, then friction is high providing grip, but this causes stick-slip effect and measurement errors
Solution Approach 1:
Rollers are introduced as intermediary elements between the measuring tape and the peripheral surface. These rollers reduce the frictional interaction from high static friction to low rolling friction, eliminating the stick-slip effect while still maintaining sufficient grip for accurate measurement.
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
This approach ensures precise angle measurements by maintaining even tension and minimizing friction, reducing errors and ensuring accurate angular positioning over the entire circumference.
Implementation Method 1
the supports and the tape measure can be placed together around the carrier or the tape measure is wrapped around the peripheral surface first and only then is the tape measure in a friction-free state by being lifted off the peripheral surface
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a method and a device for mounting a measuring tape (1) to a circumferential surface (11) of a support (10). The measuring tape (1) is positioned at a distance from the circumferential surface (11), thus eliminating the static friction between the circumferential surface (11) and the measuring tape (1). In this state, a tension force (F) is applied to the measuring tape (1). Due to the low-friction mounting of the measuring tape (1), this tension force (F) is distributed evenly over the area enclosed by the measuring tape (1). In this balanced state, the support is released, allowing the measuring tape (1) to rest against the circumferential surface (11) of the support (10).