Drum-in-hat brake assembly with separate caliper bracket
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Solution Overview
Problem
Existing vehicle drum-in-hat disc brake assemblies lack a standardized and efficient method for securing the abutment tower to the caliper bracket assembly and the axle flange, leading to potential misalignment and reduced braking performance.
Innovation Solution
A vehicle drum-in-hat disc brake assembly design that includes a shield secured to the axle flange, an abutment tower operatively disposed with the drum brake portion, and a caliper bracket assembly formed separate from the abutment tower, with specific fasteners for securing these components to the axle flange, allowing for precise installation and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the abutment tower is formed integral with the caliper bracket assembly, then manufacturing complexity is reduced, but alignment precision and braking performance deteriorate
Solution Approach 1:
The caliper bracket assembly is divided into two separate components: the caliper bracket proper and the abutment tower. This segmentation allows each component to be manufactured and aligned independently, ensuring precise alignment of the braking surfaces while maintaining ease of manufacture through modular assembly.
2Manufacturing precision
If a separate adapter is used to secure the abutment tower, then alignment precision is improved, but device complexity increases
Solution Approach 1:
The abutment tower is integrated directly with the caliper bracket assembly through a unified mounting interface, eliminating the need for a separate adapter component. This merging approach maintains alignment precision through direct mechanical connection while reducing overall device complexity by removing unnecessary intermediate parts.
3Adaptability or versatility
If standardized fastening methods are not used, then adaptability to different configurations is improved, but manufacturing precision and reliability deteriorate
Solution Approach 1:
The caliper bracket assembly incorporates a universal mounting interface with standardized fastening holes and alignment features that can accommodate various abutment tower configurations. This universal design ensures consistent manufacturing precision and reliability across different vehicle applications while maintaining adaptability to specific configuration requirements.
Data Source
AI summary
A vehicle drum-in-hat disc brake assembly comprises: a shield adapted to be secured to an axle flange; a drum brake portion carried by the shield; an abutment tower operatively disposed with the drum brake portion; and a caliper bracket assembly formed separate from the abutment tower and adapted to be secured to the axle flange; wherein at least one first fastener is provided for securing the abutment tower to the caliper bracket assembly and a plurality of second fasteners are provided for securing the caliper bracket assembly and the shield to the axle flange.