Prismatic Display Device with Synchronized Wheel Mechanism

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Solution Overview

Problem

Conventional watchmaking display devices are unable to sequentially indicate multiple time-related information, such as hours, minutes, and date, using a single display mechanism, which limits their functionality and user experience.

Innovation Solution

A timepiece with a synchronized wheel system and lever mechanism that allows a single display device to show different indications by selectively engaging cams with varying rotation speeds and shapes, using a selection wheel to activate levers associated with each indication, enabling sequential display of information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple independent retrograde displays are used to show different indications, then each indication can be displayed simultaneously, but the device complexity increases

Engineering Contradiction:
Improvedisplay capabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A single display device is designed to perform multiple functions by sequentially displaying different indications (hours, minutes, date) through one shared display mechanism controlled by the synchronization wheel and lever system, eliminating the need for multiple independent display systems

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The display device transitions between different display modes dynamically through the rotation of the synchronization wheel, which sequentially engages different levers to switch between displaying hours, minutes, and date information on the same display structure

Inventive Principle:
Principle #15Dynamics

2Device complexity

If a single display device is used to show multiple indications sequentially, then the device complexity is reduced, but the ability to display multiple indications simultaneously is limited

Engineering Contradiction:
Improvestructure complexityVSAvoiddisplay capability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The synchronization wheel rotates periodically to sequentially activate different levers at predetermined intervals, enabling the single display device to cycle through displaying hours, minutes, and date information in a repeating sequence, effectively providing multiple indications over time

Inventive Principle:
Principle #19Periodic action

3Adaptability or versatility

If multiple cams with different rotation speeds are used, then different indication speeds can be achieved, but the mechanism complexity increases

Engineering Contradiction:
Improveindication speed variationVSAvoidmechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple cams with different rotation characteristics (hour cam, minute cam, date cam) are merged into a single synchronization wheel structure, allowing different indications to be driven at appropriate speeds through one integrated mechanism rather than separate independent mechanisms

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP2933692B1Display device
Publication Date: 2017.06.07 HUBLOT
  • EP2933692B1 patent drawingFigure 1~2
  • EP2933692B1 patent drawingFigure 3
  • EP2933692B1 patent drawingFigure 4

AI summary

A clockwork device for displaying at least one indication, comprising an index (50) mounted to move in translation opposite at least one scale. According to the invention, said scales are respectively arranged on display faces of a prismatic or pyramidal volume (52), said volume being mounted to rotate about its axis of revolution, said display faces being arranged essentially along said longitudinal axis.