Toothed Brake Assembly Spring Mounting for Backlash-Free Operation
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Solution Overview
Problem
Existing brake assemblies suffer from noise emissions due to rattling and lack of precise, secure operation, particularly in systems with toothed parts and spring components.
Innovation Solution
A spring part with a yoke area and bracket areas is designed to engage in annular grooves of a toothed part, providing a positive radial and axial connection, ensuring elastic grip and centered support, reducing rattling and play, and enhancing operational precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a spring element is mounted on a toothed part to provide elastic support, then operational precision and centering are improved, but device complexity increases due to the additional mounting structure requiring annular grooves and multiple engagement areas
Solution Approach 1:
The spring element integrates multiple functions into a single component: it provides elastic support forces, centers the brake pad carrier through symmetric bracket areas, and connects to the toothed part through integrated engagement points. The bracket areas serve both as mounting points and as centering mechanisms, merging support and alignment functions into one element.
Solution Approach 2:
The spring element acts as a multi-functional component that simultaneously provides elastic support, radial connection, axial connection, and centering of the brake pad carrier. The yoke area provides radial support while the bracket areas provide axial connection and centering, making the single spring element perform multiple critical functions that would otherwise require separate components.
2Reliability
If the spring element is positively connected in the radial direction through annular grooves, then reliability is improved, but manufacturing precision requirements increase due to the need for precise groove positioning
Solution Approach 1:
The annular grooves are pre-formed on the toothed part at specific radial positions before assembly. The spring element is designed with bracket areas that naturally align with these pre-positioned grooves, allowing the radial connection to be established in advance during manufacturing rather than requiring precise alignment during final assembly.
Solution Approach 2:
The annular grooves act as intermediary features that mediate between the spring element and the toothed part. Instead of requiring direct precise mating between the spring element and the toothed part surfaces, the grooves serve as intermediate engagement points that facilitate reliable radial connection while accommodating reasonable manufacturing tolerances.
3Stability of the object's composition
If the spring element provides axial connection through bracket areas in tooth gaps, then operational stability is improved, but device complexity increases due to the need for specific tooth gap positioning
Solution Approach 1:
The spring element has different functional areas with different properties: the yoke area provides radial support while the bracket areas provide axial connection. The bracket areas are specifically positioned to engage in the tooth gaps, utilizing the local geometric features of the toothed part. This local differentiation of function reduces the need for complex overall positioning mechanisms.
Solution Approach 2:
The solution moves from two-dimensional surface contact to three-dimensional volumetric engagement by having the bracket areas extend into the tooth gaps. This third-dimensional engagement into the gap space provides stable axial connection without requiring additional positioning features on the outer surfaces, effectively using the available three-dimensional space of the toothed part geometry.
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 design reduces noise emissions and ensures well-defined, backlash-free operation, contributing to safe and reliable braking performance.
Implementation Method 1
the spring part has a yoke area (3) which is connected to a first bracket area (1) of the spring part... the spring part is mounted onto the teeth (24) in such a way that the first bracket area (1) of the spring part is at least partially arranged in a tooth gap (25)
Data Source
Figure 1
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AI summary
The invention relates to a brake assembly having a toothed part (20, 23) comprising a toothing, and having at least one spring part (1, 2, 3), wherein: the spring part has a yoke region (3) which is connected to a first bracket region (1) of the spring part that is connected, at its end remote from the yoke region, to a first end region (2) of the spring part; the spring part is fitted onto the toothing in such a way that the first bracket region of the spring part is located at least in part in a tooth gap of the toothing, the yoke region engages in a first annular groove (21) formed in the toothed part, and the first end region engages in a second annular groove formed in the toothed part.