Elastic One-Piece Watch Bracelet Bar With Hollowed Elements
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Solution Overview
Problem
Existing methods for attaching a bracelet to a watch, such as spring bars and one-piece snap-fit members, are complex and costly to produce, and users face difficulties in easily retracting both pivots without a tool.
Innovation Solution
A one-piece bar with a simplified design, comprising multiple connected elements with hollowed portions and 'M'-shaped peripheral frames, providing longitudinal elasticity and robustness, allowing for easy retraction and reduced manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spring bar with multiple elements is used to attach the bracelet, then the attachment function is achieved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple functional elements (bar body, spring mechanism, and pivots) into a single integrated one-piece structure. The bar includes a body with hollowed portions that form integral spring elements, eliminating the need for separate components and simplifying both the device structure and manufacturing process while maintaining the attachment function
2Stability of the object's composition
If a one-piece bar with hollowed portions is used, then longitudinal elasticity is achieved, but the manufacturing cost increases
Solution Approach 1:
The bar incorporates hollowed portions within its structure that act as integral spring elements. These hollowed portions are formed directly during the molding process of the one-piece bar, creating elastic regions that allow longitudinal deformation without requiring separate porous materials or complex post-processing, thus maintaining manufacturing simplicity
3Strength
If a complex one-piece bar with 'M'-shaped frames is used, then breaking strength is improved, but the ease of manufacture decreases
Solution Approach 1:
The bar body is divided into multiple elements connected by peripheral frames with hollowed portions. This segmentation creates a modular structure within the one-piece design, where each element can be independently optimized for strength while the overall structure maintains manufacturing simplicity through integral formation
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
The solution offers a cost-effective, robust, and aesthetically pleasing attachment mechanism with improved flexibility and breaking strength, reducing the risk of mechanical breakage and extending the bar's lifespan.
Implementation Method 1
Each element has a hollowed portion, to give the bar longitudinal elasticity and allow elastic deformation thereof in its longitudinal direction
Data Source
AI summary
A one-piece bar is for attaching a bracelet to a watch. The bar extends in a longitudinal direction and includes two pivots and a body connecting the two pivots, each pivot being intended to be introduced into a corresponding housing of a respective horn of a watch case. The body includes a plurality of elements connected to one another, each element having a hollowed portion, in order to give the bar longitudinal elasticity and allow elastic deformation thereof in the longitudinal direction.