Optical Maintenance Display for Cutting Tool Service Data

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Solution Overview

Problem

Existing maintenance indicators for cutting tools face challenges in displaying maintenance information efficiently in cramped or poorly accessible spaces, requiring a more space-saving and effective method for information display.

Innovation Solution

A maintenance indicator that uses a single indicator light to sequentially flash information bits, accompanied by a pre-signal and announcement signal, allowing optical decoding of maintenance information without direct contact, and optionally includes a warning signal for predefined conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a single indicator light is used to display maintenance information sequentially, then the display area is minimized, but the readability and information transmission speed may be reduced

Engineering Contradiction:
Improvedisplay areaVSAvoidinformation transmission efficiency
Core Design Contradiction:
Area of stationary objectVSLoss of information

Solution Approach 1:

The patent uses periodic flashing of a single indicator light to transmit information bits sequentially over time. Each flash represents a binary state (0 or 1), allowing maintenance information to be transmitted through time-based periodic actions rather than spatial arrangement, thus minimizing display area while preserving information transmission capability

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent creates an optical copy of the information bit string by converting binary data into a sequence of light flashes that can be captured by a photosensitive element. This optical copying mechanism allows the information to be transmitted through light patterns rather than physical display elements, resolving the contradiction between compact display area and information transmission efficiency

Inventive Principle:
Principle #26Copying

2Ease of operation

If optical signals are used to transmit maintenance information wirelessly, then contactless information transfer is achieved, but the system may be susceptible to interference signals

Engineering Contradiction:
Improvecontactless operationVSAvoidsignal accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent employs a pre-signal transmitted before the main information bit string to prepare the receiver system. This preliminary action synchronizes the photosensitive element and establishes the timing reference, ensuring that subsequent information signals are captured accurately and distinguishing them from random interference signals

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses an acknowledgment signal transmitted from the receiver back to the transmitter to confirm successful reception of the information bit string. This feedback mechanism allows the system to verify signal integrity and request retransmission if interference corrupts the data, thereby maintaining reliability in contactless optical communication

Inventive Principle:
Principle #23Feedback

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

Enables efficient, space-saving display and decoding of maintenance information, with reduced interference and enhanced visibility, particularly in confined areas, using optical signals and a photosensitive element for flexible information transmission.

Implementation Method 1

a single indicator light is sufficient, which switches on and off depending on the information bit states

Methodology Applied
Scientific EffectLight emission from indicator light: Light Emitting Diode

Implementation Method 2

The information signal can be filmed by the photosensitive element... an element that generates electrical signals when stimulated by light waves

Methodology Applied
Scientific EffectPhotoelectric conversion: Photoelectric Effect

Data Source

PatentEP4416565B1Maintenance display
Publication Date: 2026.04.15 CERATIZIT BESIGHEIM GMBH
  • EP4416565B1 patent drawingFigure 1
  • EP4416565B1 patent drawingFigure 2
  • EP4416565B1 patent drawingFigure 3

AI summary

A maintenance display (1), wherein the maintenance display (1) stores an information bit string, wherein the information bit string codes at least one section of maintenance information from a component (100) of a cutting tool in binary form, wherein the information bit string contains multiple information bits, wherein each information bit has an information bit state, wherein the maintenance display (1), in an activated display state, successively flashes the information bit states of the information bit string and thus displays an information signal, wherein the maintenance display, in the activated display state, displays an announcement signal, wherein the announcement signal announces the information signal, wherein the information signal is able to be filmed by a photosensitive element (6) with an air gap (7) being maintained.