Rotating Decorative Element on Oscillating Winding Mass
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Solution Overview
Problem
Wristwatches with transparent backs and self-winding movements have aesthetically unpleasing oscillating winding masses, as the decorative elements are not visibly appealing due to being static and not effectively visible through the transparent case, and traditional engraving or coloring methods are insufficient.
Innovation Solution
An oscillating winding mass with a rotatably mounted decorative element, such as a logo, mechanically linked to the main element, utilizing a ball bearing system to allow rotation and create a dynamic aesthetic effect, enhancing the visual appeal by rotating relative to the main element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a self-winding movement is used in a wristwatch with a transparent back, then the watch can be automatically wound by the user's movement, but the oscillating winding mass hides movement parts and reduces aesthetic appeal
Solution Approach 1:
The patent applies the dynamics principle by making the decorative element rotatable relative to the main oscillating mass. This creates a dynamic visual effect where the decorative element can rotate independently or at different speeds compared to the main mass, transforming a static aesthetic problem into a dynamic solution that enhances visual appeal while maintaining the automatic winding function.
Solution Approach 2:
The patent segments the winding mass into two distinct parts: the main oscillating mass and a separate decorative element. This segmentation allows the decorative element to be independently rotatable while the main mass performs the winding function, resolving the conflict between functional visibility and aesthetic appearance by separating the two concerns into different components.
2Shape
If a decorative element is engraved or colored on the oscillating mass, then the aesthetic appeal is improved, but the decorative element remains static and the color can degrade over time
Solution Approach 1:
The patent transforms the static decorative element into a dynamic one by enabling rotation. This dynamic behavior creates continuous visual interest and prevents the decorative element from appearing dull or static, while the mechanical rotation mechanism is more durable than painted or engraved surfaces that can degrade over time.
Solution Approach 2:
The patent changes the state of the decorative element from static to rotatable, introducing a new degree of freedom. This parameter change (from fixed position to variable angular position) enhances aesthetic appeal while the mechanical rotation system provides long-term durability compared to surface treatments like painting or engraving.
3Shape
If a rotatable decorative element is added to the oscillating winding mass, then the aesthetic appeal is enhanced, but the device complexity increases
Solution Approach 1:
The patent introduces a ball bearing as an intermediary element between the main oscillating mass and the decorative element. This ball bearing acts as a simple mechanical mediator that enables rotation with minimal complexity, allowing the decorative element to rotate smoothly while maintaining a relatively simple overall structure.
Solution Approach 2:
The patent applies local quality by concentrating the rotational mechanism at a specific location (the decorative element) rather than redesigning the entire oscillating mass. The ball bearing and rotational joint are localized to where needed, keeping the rest of the winding mass structure simple while adding aesthetic value only where it enhances appearance.
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 provides a more attractive and aesthetically convincing oscillating winding mass with a rotating decorative element, enhancing the timepiece's visual appeal and cachet, as the decorative element can rotate independently or synchronously with the main element, offering a unique aesthetic effect.
Implementation Method 1
the mass comprises a ball bearing to allow the decorative element to rotate
Implementation Method 2
a part of the winding mass forming a heavy part allowing the oscillation of the mass in response to the movement of the timepiece and to the force of gravity
Data Source
AI summary
An oscillating winding mass (1) for a movement of a timepiece, the oscillating winding mass (1) being intended to be rotatably mounted on an axis of the movement. The winding mass includes a main element (2) and a decorative element (10), for example a logo or an acronym, a part of the winding mass (1) forming a heavy part (3) allowing the oscillation of the mass (1) in response to the movement of the timepiece and to the force of gravity, the main element (2) giving the general shape of the oscillating winding mass (1), the decorative element (10) being mechanically linked to the main element (2), the decorative element (10) being rotatably mounted on the main element (2).