Electronic Timepiece Band Attachment With Step-Protrusion Engagement
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Solution Overview
Problem
Conventional electronic timepiece band attachment structures require detachment of the cover to be detached or attached, making it difficult to easily attach and detach the band.
Innovation Solution
An electronic timepiece design featuring a bezel with a first opening and a protruding part that engages with a step part on the band, allowing easy attachment and detachment of the band without needing to remove the cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the band is attached using a conventional structure with a cover, then the band can be securely held, but it requires detaching the cover to attach or detach the band, making it difficult to easily attach and detach the band
Solution Approach 1:
The attachment mechanism is segmented into independent components: the exterior body, the protruding part (first engaging part), and the step part (second engaging part). This segmentation allows the band to be attached and detached independently from the cover, enabling easy operation without requiring cover removal while maintaining secure holding through the coordinated engagement of these segmented parts
Solution Approach 2:
The protruding part and step part act as intermediary elements between the band and the exterior body. These intermediaries facilitate the attachment process by providing direct engagement points that allow the band to be securely held without requiring the cover to be detached, thus improving ease of operation while managing device complexity
Data Source
AI summary
Provided is an electronic timepiece including a main body and an exterior that is attached to the main body and can hold a band. The exterior has a first opening on one end. The first opening has a first protruding part protruding inside the first opening on a side facing a back side of the band inserted through the first opening. The band has a first planar part on the back side and a second planar part that swells more than the first planar part on the back side. A boundary between the first planar part and the second planar part forms a step part. When the band is inserted through the first opening of the exterior, the step part and the first protruding part are engaged with each other, thereby holding the band to the exterior.