Brake Rotor Locking Bridge for Single-Tech Maintenance

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Solution Overview

Problem

Current methods require two technicians to remove and replace brake rotor nuts due to the need to secure the brake rotor and axles from rotating freely, reducing efficiency in maintenance processes.

Innovation Solution

A restriction device with a bridge and locking mechanism is installed on the brake rotor, featuring a protrusion and tubular part that restricts the brake disk's rotation, allowing a single technician to access and unscrew nuts by connecting to the hub's connection parts and locking the caliper, preventing the wheel from rotating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If two technicians are used to remove and replace brake rotor nuts, then the brake rotor can be securely held from rotating, but the maintenance efficiency is reduced due to requiring multiple personnel

Engineering Contradiction:
Improvesecurity of brake rotor during maintenanceVSAvoidmaintenance efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent introduces a restriction device as an intermediary tool that mediates between the brake rotor and the technician. This device includes a bridge structure with connection portions that attach to the brake rotor's connection parts, and locking portions that prevent rotation. By using this intermediary device, one technician can securely restrict the brake rotor without needing a second person to manually hold it, thus resolving the contradiction between reliability and productivity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The restriction device enables the brake rotor maintenance system to be self-sufficient. The device automatically locks and restricts the brake rotor through its own mechanical structure (bridge, connection portions, locking portions) without requiring external human assistance for stabilization. The system serves itself by incorporating the restriction function directly into the maintenance tool, eliminating the need for multiple personnel

Inventive Principle:
Principle #25Self-service

2Productivity

If a restriction device is installed on the brake rotor, then maintenance efficiency is improved by allowing single technician operation, but the device complexity increases

Engineering Contradiction:
Improvemaintenance efficiencyVSAvoidcomplexity of restriction device
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The restriction device is segmented into distinct functional modules: a bridge structure, connection portions (with protrusions that engage with hub connection parts), and locking portions (with tubular parts that contact the brake caliper). This segmentation allows each component to perform its specific function independently while maintaining overall simplicity. The modular design reduces complexity by making each element straightforward and easy to manufacture

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts the essential restriction function from the complex interaction between two technicians and condenses it into a single device with specific functional elements. By taking out only the necessary components (connection portions for attachment, locking portions for rotation prevention) and removing unnecessary complexity, the device achieves high productivity while maintaining reasonable simplicity

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS11873872B2Restricting device for restricting brake rotor from rotating during maintenance
Publication Date: 2024.01.16 JEOUTAY LIU INDAL
  • US11873872B2 patent drawing
  • US11873872B2 patent drawing
  • US11873872B2 patent drawing

AI summary

A restriction device includes a bridge including a connection portion and a locking portion respective formed on two ends thereof. The connection portion includes a protrusion on the outside of the bridge. The protrusion is to be connected to one of the connection parts on the hub. The locking portion includes a tubular part on the inside of the bridge. The tubular part is located beyond the outer periphery of the hub. A space is formed between the inside of the bridge and the tubular part so as to accommodate the hub on the disk body when the protrusion is connected to one of the connection parts on the hub. The tubular part contacts one of two ends of the brake caliper to restrict rotation of brake disk.