Watch Buckle Sliding Adjustment Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing buckles for wristwatch bands require cumbersome operation of a push button at the rear surface to adjust band length, leading to increased complexity and cost due to the large number of parts involved.
Innovation Solution
A buckle design featuring a folding member, buckle cover, slide plate, swing arm, and spring, allowing band length adjustment by sliding the slide plate without button operation, with the swing arm's rotation restricted when the folding member is accommodated, enabling multiple step adjustments and reducing part count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a push button mechanism is used for band length adjustment, then the band length can be adjusted, but the operation becomes cumbersome and the number of parts increases
Solution Approach 1:
The invention extracts the push button mechanism from the buckle structure and replaces it with a direct manual operation system. The band length adjustment is achieved by simply pulling the band, which directly moves the adjustment element without requiring any buttons, levers, or complex locking mechanisms. This extraction of the push button operation simplifies the overall structure while maintaining the adjustment function.
Solution Approach 2:
The buckle mechanism is designed to be self-operating through the user's natural pulling action on the band. The adjustment element automatically engages with the adjustment holes and locks into position without requiring any additional locking actions or button presses. The spring-loaded design provides automatic resetting and engagement, making the system self-servicing.
2Measurement precision
If multiple adjustment mechanisms are incorporated, then band length adjustment precision is improved, but the device complexity increases
Solution Approach 1:
The invention segments the adjustment function into discrete adjustment holes positioned at regular intervals along the band. Each hole represents a specific length increment, allowing precise adjustment in steps while maintaining a simple overall structure. The segmentation of the adjustment range into manageable intervals provides precision without requiring complex continuous adjustment mechanisms.
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 easy band length adjustment without button operation, reduces part count and assembly complexity, and prevents unintentional length changes, while maintaining durability and aesthetic appeal.
Implementation Method 1
a spring that urges the swing arm
Data Source
AI summary
A buckle includes a folding member linked to a band, a slide plate having a plurality of groove sections provided along the longitudinal direction of the band, a swing arm including an engagement click engageable with any of the groove sections, and a spring that urges the swing arm in a first rotational direction, and the folding member restricts rotation of the swing arm in the second rotational direction when the folding member is accommodated in the buckle cover, and cancels the restriction of the rotation of the swing arm in the second rotational direction when the folding member is detached from the buckle cover.