Modular Watch Movement with Sealed Glass for Tool-Free Interchangeability
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Solution Overview
Problem
Conventional watches are not designed to allow users to easily change the movement without tools or disassembly, which can damage the hands and dials and expose the movement to moisture, rendering it non-functional.
Innovation Solution
A modular movement system where the movement is integrated into a single shell with a sealed glass layer, allowing for tool-free insertion and removal into a portable device case, maintaining water resistance and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the movement is traditionally assembled into the case with hands and dials, then the watch can be manufactured, but the movement becomes vulnerable to moisture and damage when removed
Solution Approach 1:
The patent segments the watch into distinct modular components: a sealed movement unit with integrated glass, and a case. The movement is enclosed in a self-contained body that includes the glass as an integral sealed component, allowing it to be removed from the case without exposing internal parts to moisture or damage.
2Stability of the object's composition
If the movement is securely attached to the case, then the watch structure is stable, but the movement cannot be easily removed or interchanged
Solution Approach 1:
The patent implements a dynamic attachment system where the movement body can be securely inserted into and retained by the case during normal use, yet can be easily removed by applying slight pressure to the crown. This allows the structure to transition between stable and removable states based on user needs.
3Reliability
If the movement is enclosed in a sealed body, then the movement is protected from moisture, but the glass integration becomes more complex
Solution Approach 1:
The patent merges the glass with the movement body into a single integrated sealed unit. The glass is not merely attached to the movement but is incorporated as an integral part of the sealed body, creating a unified water-resistant enclosure that simplifies the overall sealing system while maintaining protection.
4Ease of manufacture
If the watch uses traditional manufacturing processes, then the movement can be produced, but user customization and interchangeability are limited
Solution Approach 1:
The patent creates a universal movement body design that can function both as a complete standalone unit and as an interchangeable component in different case configurations. The standardized sealed body with integrated glass and crown mechanism can be used across multiple watch models, enabling user customization while maintaining manufacturing efficiency.
Data Source
AI summary
A method for manufacturing an interchangeable movement includes assembling parts into a movement subassembly, such that the subassembly is a complete working mechanism; enclosing the subassembly in a body; integrating a glass with the body, wherein the body comprises a single shell with only an opening that receives the glass, sealing the glass and the single shell to enclose the body, thereby creating a water resistant modular movement; and wherein the modular movement is insertable into a case of a portable device having a receptacle for removably receiving the modular movement without tools and in a manner where the glass of the modular movement is visible through the case when the modular movement is inserted.