Presentation case for an electromechanical watch and assembly comprising the same
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Solution Overview
Problem
Existing systems for correcting the time on electromechanical watches are either bulky, require modifications to the watch movement, or are mechanically complex and limited to specific types of watches, making them restrictive and inefficient for time zone changes or summer/winter time adjustments.
Innovation Solution
A presentation case with a stepping motor that automatically resets the watch hands using inductive coupling, allowing for easy and non-restrictive time correction without modifying the watch movement, and capable of handling various electromechanical watch movements with a stepping motor, including a coil or rotatably mounted magnet for bidirectional rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a computer and camera system is used for time correction, then time correction functionality is achieved, but the system becomes bulky and requires modification of the watch movement
Solution Approach 1:
The invention extracts the time correction functionality from the watch movement itself and relocates it to the presentation case. The detection system and resetting means are housed in the presentation case, allowing the watch to remain unmodified while still achieving automated time correction.
Solution Approach 2:
The presentation case acts as an intermediary device between the user and the watch. Instead of modifying the watch to include detection and resetting components, the presentation case provides these functions externally through its integrated system.
2Adaptability or versatility
If a mechanical winding device with camera is used, then time correction is possible, but the device becomes mechanically complex and limited to watches with winding buttons
Solution Approach 1:
The invention replaces the mechanical winding device with an electromagnetic resetting mechanism. The resetting means use electromagnetic fields to directly rotate the stepping motor rotor, eliminating the need for mechanical components like winding buttons and complex gear trains.
Solution Approach 2:
The electromagnetic resetting mechanism is designed to be universally compatible with different types of electromechanical watches that use stepping motors. The system can detect hand positions and reset various watch types (quartz, chronographs, etc.) without requiring mechanical adaptations.
3Extent of automation
If communication means and hand moving means are incorporated in the watch, then time correction functionality is achieved, but the watch movement requires modification
Solution Approach 1:
The invention extracts the communication means and hand moving means from the watch movement and places them in the presentation case. The watch remains a simple timekeeping device, while the presentation case houses the detection system, processing unit, and resetting mechanism.
Solution Approach 2:
The presentation case serves as an intermediary that provides automated time correction functionality without requiring modifications to the watch. The system detects hand positions, processes the information, and executes resetting operations externally.
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 quick and automated time correction for any electromechanical watch with a stepping motor, reducing the complexity and bulkiness of previous systems while being functional for a wide range of watch movements, and optimizing space within the presentation case.
Implementation Method 1
the drive means being arranged inside the presentation case so as to face the stepping motor when the watch is placed on the receiving support, and being configured to cause a direct rotation of a rotor of a stepping motor by inductive coupling
Data Source
AI summary
A presentation case is arranged for receiving an electromechanical watch provided with a stepping motor for driving the watch hands. The presentation case includes a box with a support for receiving the watch, a system for detecting the position of the hands, and a device for resetting the watch connected to the hand position detection system. The resetting device resets the watch based on information received from the hand position detection system and a time reference when the watch is placed on the receiving support. The resetting device includes a driver for the stepping motor of the electromechanical watch, which is arranged inside the presentation case facing the stepping motor, when the watch is placed on the receiving support, and causes a rotation of the stepping motor by inductive coupling.