Watch Programming Mobile with Toothed Sectors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing programming mobiles for watch movements, such as perpetual calendars, are complex and difficult to assemble due to numerous wheels and axles, making them challenging to construct and adjust, despite aiming for simpler constructions.
Innovation Solution
A programming mobile with a robust, non-complex structure featuring a first and second toothed sector that can transmit a predefined number of steps per turn, allowing for flexible operation and programmable additional steps, with the first toothed sector capable of assuming n+1 angular positions, and a common axis for the sectors to simplify assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wheels and axles are used to achieve programming functionality, then the device can transmit predefined steps and additional steps, but the construction becomes complex and difficult to assemble
Solution Approach 1:
The patent merges the input sector and output sector into a single integrated component that rotates about a common axis. This combination eliminates the need for multiple separate wheels and axles, reducing construction complexity while maintaining the ability to transmit predefined steps and programmable additional steps through the single rotating assembly
2Ease of operation
If multiple axles are used to assemble various wheels, then the programming mobile can achieve complex motion control, but the assembly and adjustment become difficult
Solution Approach 1:
The patent segments the programming mobile into two functional parts: a fixed board with toothing and a rotating sector assembly with input and output sectors. This segmentation allows the complex motion control to be achieved through the rotation of a single sector assembly about a common axis, eliminating the need for multiple axles and simplifying assembly and adjustment procedures
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
A programming unit for a clockwork movement, comprising main input (50) and output (56) boards, as well as input (68) and output (70) toothed sectors associated with the main boards (50, 56) and arranged to rotate a programmable number of steps with each revolution of the main boards without driving the latter, the movements of the output toothed sector (70) being dictated by those of the input toothed sector (68). The programming unit can thus drive a clockwork mechanism with a variable number of steps during each of its rotations.