Timepiece Module Auto-Locking for Predetermined Run Time
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Solution Overview
Problem
Existing clock mechanisms for activating features like chimes or animations in watches are complex and require significant space, and lack efficient automatic stop mechanisms after a predetermined time.
Innovation Solution
A clockwork module with automatic blocking means that includes a regulating pinion driven by a barrel via a gear train, featuring a brake rocker and rotating cam to lock the mechanism after a predefined time, allowing compact operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a rotating cam with a notch and a movable body locking mechanism is used, then the mechanism can be automatically stopped after a predetermined time, but the device complexity and space requirements increase
Solution Approach 1:
The locking mechanism is segmented into distinct functional components: a rotating cam with a notch for time determination, a movable body with a locking protrusion for engagement, and a brake rocker for actuation. This segmentation allows each component to perform its specific function efficiently, reducing overall complexity while maintaining the automatic stop capability after a predetermined time.
Solution Approach 2:
The mechanism utilizes periodic action through the rotating cam that completes one revolution corresponding to the predetermined operating time. The cam's notch passes periodically under the movable body, triggering the locking action automatically after the specified duration without requiring complex control systems.
2Duration of action of stationary object
If a rotating cam with a notch and a movable body locking mechanism is used, then the mechanism can be automatically stopped after a predetermined time, but the space occupied by the mechanism increases
Solution Approach 1:
The brake rocker serves multiple functions: it acts as a lever for the movable body to pivot, provides a contact surface for the intermediate rocker to push against, and directly engages with the regulating shaft to apply braking. This merging of functions into a single component significantly reduces the space required compared to having separate actuators and brake components.
Solution Approach 2:
The locking mechanism components are arranged in a nested configuration where the movable body is positioned within the space defined by the brake rocker's arc of movement, and the intermediate rocker operates within the constraints of the brake rocker's geometry. This nested arrangement minimizes the overall footprint of the locking mechanism on the plate.
Data Source
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AI summary
One aspect of the invention relates to a clockwork module (1) for a clockwork movement, for example an automaton or a striking mechanism, clockwork module (1) comprising a plate (2) and a mechanical device (10) capable of passing from a rest state in which the mechanical device (10) is stationary relative to the plate (2), to an operating state in which at least a part of the mechanical device (10) is mobile relative to the plate (2) when it is actuated, clockwork module (1) comprising a barrel (3) for supplying energy to the mechanical device (10), the mechanical device (10) comprising a gear train (20) actuated by the barrel (3), the mechanical device (10) further comprising a speed regulator for the mechanical device (10), clockwork module (1) comprising means for automatic locking (30) of the mechanical device (10),the automatic locking means (30) being configured to lock the regulator in order to put the mechanical device (10) in the rest state.