Clockwork Rocker Mechanism Friction Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing clockwork mechanisms require return springs for correct movement transmission, which can lead to component damage and inefficiencies in switching between positions.
Innovation Solution
A rocker mechanism with a pivoting plate and variable transmission means, utilizing friction connections between a mobile transmitter and receiver, allowing for autonomous operation without a return spring, enabling smooth rotation and position switching controlled by user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a return spring is used to ensure correct movement transmission, then the movement transmission is reliable, but the device complexity increases and component damage risk increases
Solution Approach 1:
The invention removes the return spring from the mechanism, extracting the problematic component that caused complexity and potential damage. The friction-based autonomous operation replaces the spring-based return mechanism, achieving reliability without the additional component.
Solution Approach 2:
The rocker mechanism becomes self-sufficient through friction-based autonomous operation. The friction between the rocker arm and the transmission element automatically ensures correct movement transmission and sustained support without requiring an external return spring, making the system self-service and reducing complexity.
2Reliability
If a return spring is used to sustain support during position switching, then the switching is reliable, but the ease of operation deteriorates due to potential component damage
Solution Approach 1:
By removing the return spring, the invention eliminates the component that could cause damage during operation. The friction-based system provides sustained support without the mechanical stress and potential failure points associated with springs, improving user safety during position switching.
Solution Approach 2:
The friction-based autonomous operation allows the mechanism to self-regulate during position switching. The friction naturally provides the necessary sustained support and control without requiring additional components, making the operation safer and easier for the user while maintaining reliability.
3Device complexity
If friction connection is used for autonomous operation, then the device complexity is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The friction-based system is self-regulating and inherently compensates for minor manufacturing variations. The autonomous operation through friction provides natural feedback and adjustment, reducing the need for extremely tight manufacturing tolerances compared to precision mechanical linkages, thus lowering manufacturing precision requirements while maintaining simplicity.
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
The rocker mechanism ensures reliable and efficient movement transmission without risk of component damage, allowing for precise control of watch functions with reduced complexity and compact design, suitable for various watchmaking applications.
Implementation Method 1
comprising a friction connection between a first friction surface of said transmitter mobile, carried by a first carrier element, and a second friction surface of said pivoting plate, carried by a second carrier element
Data Source
Figure 1~2
Figure 3~8
AI summary
A clockwork rocker (1) for transmitting motion between, on the one hand, a transmitting element (2) comprising said rocker and mounted to pivot about a first pivot axis (D1), and on the other hand, at least one receiving element (3) pivoting about a second pivot axis (D2) distinct from said first pivot axis (D1), said rocker (1) comprising, at a distance from said first pivot axis (D1), a transmission means (4) comprising a control finger (5) or a transmission element (6), the angular position of said transmission means (4) relative to said first pivot axis (D1) being variable. This rocker (1) comprises a pivoting plate (7) carrying said transmission means (4), and it comprises a friction connection between a first friction surface (8) of said transmitting element (2) and a second friction surface (9) of said pivoting plate (7).