Time-Limiting Delay Hook Mechanism for Striking Timepiece
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Solution Overview
Problem
Complicated timepieces, such as those with striking mechanisms, face challenges in duplicating sound functions within a limited space, often requiring a choice between sound and musical complications, and existing mechanisms lack efficient time-limiting features for secondary ringing triggers.
Innovation Solution
A time-limiting mechanism that incorporates a delay mobile and clutch means to control the duration of secondary ringing triggers, allowing for the use of a main ringing mechanism to play a secondary tone, with a clutch mechanism that disengages the main ringing during secondary ringing and re-engages it afterwards, ensuring exclusive sound emission and preventing untimely commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a main ringing mechanism is used for secondary tones, then the sound function is improved, but the risk of interference and untimely commands increases
Solution Approach 1:
A delay mobile mechanism is introduced as an intermediary between the secondary ringing trigger and the main ringing mechanism. This delay mobile includes a delay wheel with ratchet teeth and a control lever that must be held in a specific position for a predetermined time period before the main ringing mechanism can be activated. This intermediary device prevents untimely commands and ensures proper sequencing of sound emissions.
Solution Approach 2:
The control lever must be preliminarily positioned and held in the activation position for a predetermined time period before the main ringing mechanism can execute. This preliminary action ensures that the system is properly prepared and prevents accidental or premature activation, thereby preventing interference between different ringing functions.
2Volume of moving object
If the space inside the timepiece is limited, then the compactness is improved, but the ability to duplicate sound functions deteriorates
Solution Approach 1:
The main ringing mechanism is designed to serve multiple functions: it can execute both primary ringing operations and secondary ringing operations triggered by different inputs. By making the main ringing mechanism universal, the patent eliminates the need for separate sound emission mechanisms, thereby saving space while maintaining the ability to duplicate sound functions through temporal separation controlled by the delay mobile.
3Ease of operation
If clutch means are used to disengage the main ringing during secondary ringing, then the sound emission control is improved, but the mechanism complexity increases
Solution Approach 1:
The clutch control function is merged with the delay mobile mechanism. The same control lever that provides the time delay also controls the clutch engagement and disengagement. This integration means that while the functionality is enhanced (better sound emission control), the additional complexity is minimized by combining control functions into a single integrated mechanism rather than adding separate clutch control systems.
Data Source
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AI summary
A delay mechanism (130) for a clockwork mechanism is described, designed to limit the execution time of a function after its activation. It is arranged to cooperate with a triggering element, the initial movement of which initiates the activation of said function, and further arranged to cooperate with clutching means (600) for said function. The delay mechanism (130) forms part of a time-limiting mechanism for the execution time of said function. The mechanism includes a delay hook (141) arranged to be operated by said clutching means (600) for its engagement with a ratchet (133) or for its disengagement from said ratchet (133). Said ratchet (133) is pivotally mounted on an axis coaxially with a delay wheel (132), towards which it is pivotally returned by elastic return means (135). Said delay wheel (132) is arranged to cooperate, directly or indirectly, with said triggering element.