Prism-Shaped Marking Device Elastic Centering

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Solution Overview

Problem

Existing marking devices struggle to effectively mark lines with diameters that almost correspond to the inner diameter of the partial shells locked together, due to the selected geometry of the compensating device, resulting in eccentric positioning and limited diameter range.

Innovation Solution

The marking device features a prism-shaped inner surface on the partial shell with a labeling area and an elastic support body designed to apply compressive force, allowing for centering and marking of lines across a wider diameter range, with a trapezoidal or inverted U-shaped support body that deforms to accommodate larger diameters while maintaining compressive force on smaller diameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the compensating device has a fixed geometry suitable for smaller diameter lines, then smaller lines can be clamped effectively, but lines with diameters almost corresponding to the inner diameter of the partial shells cannot be marked

Engineering Contradiction:
Improvediameter range of markable linesVSAvoidclamping effectiveness
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The compensating device is designed with elastic elements that allow dynamic adaptation to different line diameters. The elastic arms can deform to accommodate larger diameters while maintaining clamping force, and the elastic support body can be pushed outward through openings to provide sufficient restoring force for lines with diameters almost matching the inner diameter of the closed marking device.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The geometry of the compensating device is made variable through elastic deformation. The elastic arms and support body change their shape and position based on the line diameter being clamped, allowing the device to adapt from smaller to larger diameters while maintaining effective clamping.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the inner surface is designed for the largest diameter line, then larger lines can be marked, but smaller lines become eccentric and cannot be marked centrally

Engineering Contradiction:
Improvediameter rangeVSAvoidcentering accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The elastic arms provide dynamic centering by deforming to match the line diameter. For smaller lines, the elastic arms deform inward to center the line, while for larger lines they maintain their position to prevent eccentricity, ensuring central marking across the full diameter range.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The compensating device changes its geometric parameters (arm position, support body position) based on the line diameter, allowing the inner surface to effectively adapt from the largest diameter configuration to smaller diameters while maintaining central alignment.

Inventive Principle:
Principle #35Parameter changes

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 design ensures that lines of varying diameters are marked centrally and securely, with sufficient restoring forces for larger diameters and consistent deformation, enabling marking of lines whose diameter almost matches the inner diameter of the closed device.

Implementation Method 1

the compensating element is designed as an elastic support body (6)... the support body (6) is deformed more as the diameter of the line (13) increases

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP2272058B1Marking device
Publication Date: 2018.08.29 WEIDMULLER INTERFACE GMBH & CO
  • EP2272058B1 patent drawingFigure 1~3
  • EP2272058B1 patent drawingFigure 4~7
  • EP2272058B1 patent drawingFigure 8~9

AI summary

A marking device (1) for at least one lead (13), said marking device having two partial shells (2, 3) which are connected to each other in an articulated manner, can be placed around the lead (13) to be marked and can preferably be locked to each other, wherein, for the purpose of adaptation to different lead diameters, a label region is formed on at least one of the partial shells (2) and a flexible compensating element is formed on the other partial shell (3), wherein the partial shell (2) which has the label region is of prism-shaped design on the inner side thereof which faces the lead (13), at least in the region of the label region, and the compensating element is designed as an elastic supporting body (6) which lies opposite the label region in the locked state.