Wristwatch Disk Indicating Member for Function Display Readability
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Solution Overview
Problem
Conventional wristwatches have difficulty in providing an easily recognizable and readable function display portion, as existing designs do not effectively expose and highlight function indicating features.
Innovation Solution
A wristwatch design featuring a first dial with an opening portion, a second dial with concentrically arranged function display portions, and a disk-shaped indicating member that rotates to expose and point to these portions, improving visibility and readability by mounting the disk-shaped member on a common driving shaft with the hands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If function display portions are arranged concentrically on the second dial, then the area for function indication is enlarged and readability is improved, but the device complexity increases due to additional components (disk-shaped indicating member, opening portion)
Solution Approach 1:
The function display is segmented into multiple concentric rings on the second dial, with each ring displaying different function information. This segmentation allows comprehensive function display while maintaining organizational clarity and readability.
Solution Approach 2:
A disk-shaped indicating member is introduced as an intermediary component between the first and second dials. This mediator rotates to expose different function display portions through the opening portion, enabling clear function indication without requiring complex electronic displays or multiple overlapping elements.
2Loss of information
If a disk-shaped indicating member is introduced to rotate and point to function portions, then function indication clarity is improved, but the ease of operation decreases due to additional rotating components
Solution Approach 1:
The disk-shaped indicating member is merged with the existing hand assembly, sharing the same driving shaft. This combination allows the indicating member to rotate together with the hands, utilizing the existing driving mechanism without requiring separate operation, thus maintaining ease of operation while improving function indication clarity.
3Illumination intensity
If the function display portions are exposed through an opening portion in the first dial, then visibility is improved, but the structural complexity increases
Solution Approach 1:
An opening portion is extracted from the first dial at a predetermined position, removing only the minimal necessary material to expose the function display portions on the second dial. This extraction approach improves visibility while maintaining the overall integrity and simplicity of the dial structure.
Solution Approach 2:
The function display portions are arranged in concentric rings on a different dimensional plane (the second dial beneath the first dial), allowing multiple functions to be displayed simultaneously without cluttering the primary dial face. The opening portion provides a window to this secondary dimension, improving visibility without adding horizontal complexity.
Data Source
AI summary
A wristwatch is provided with hand(s) and a disk-shaped indicating member disposed between a first dial and a second dial. The disk-shaped indicating member is structured such that a part of the disk-shaped indicating member is exposed from an opening portion of the first dial and that the disk-shaped indicating member indicates, at a region corresponding to the opening portion, one of a plurality of function display portions SPL, STP and RUN provided on the second dial. The hand(s) and the disk-shaped indicating member rotate about a common driving shaft.