Brake Hose Support Bracket Anti-Rotation Tab Design

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Solution Overview

Problem

Existing methods for affixing hydraulic brake hoses to suspension components, such as knuckles, often require welding or large fasteners due to material incompatibilities, which can be impractical or costly, and fail to prevent rotation of the brake hoses effectively.

Innovation Solution

A support bracket with a single mounting opening and anti-rotation tab is used to secure the brake hose to the suspension component, utilizing a single fastener to prevent rotation and reduce the number of parts, thereby simplifying the assembly and reducing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If welding is used to affix the support bracket to the suspension component, then the bracket is securely fixed, but welding is not an option when the suspension component is made of aluminum and the bracket is made of steel due to material incompatibility

Engineering Contradiction:
Improveattachment strengthVSAvoidmanufacturing feasibility
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The patent introduces a support bracket as an intermediary component between the aluminum suspension component and the steel brake hose assembly. The bracket is made of aluminum to match the suspension component material, allowing for compatible fastening methods. This intermediary resolves the material incompatibility issue that would prevent direct welding or fastening between dissimilar materials.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If a single fastener is used to connect the brake hose to the bracket, then the assembly is simplified and costs are reduced, but the brake hose may rotate during connection

Engineering Contradiction:
Improvenumber of fastenersVSAvoidanti-rotation capability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent employs asymmetric features on both the support bracket and suspension component - specifically a tab on the bracket that fits into a corresponding recess on the component. This asymmetric geometry prevents rotation of the brake hose during connection while maintaining the simplicity of using only a single fastener. The asymmetric tab-recess combination provides anti-rotation capability without requiring multiple fasteners.

Inventive Principle:
Principle #4Asymmetry

3Strength

If large fastener holes or multiple smaller holes are used to secure the bracket to the suspension component, then the bracket is securely attached, but the assembly complexity and cost increase

Engineering Contradiction:
Improveattachment securityVSAvoidnumber of fastener holes
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into a single fastener - it simultaneously provides attachment security and works in conjunction with the asymmetric tab-recess feature to prevent rotation. By merging the anti-rotation function into the fastener system rather than requiring separate components, the design achieves secure attachment without increasing the number of fastener holes or assembly complexity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS8899533B2Vehicle hydraulic brake hose assembly
Publication Date: 2014.12.02 HONDA MOTOR CO LTD
  • US8899533B2 patent drawing
  • US8899533B2 patent drawing
  • US8899533B2 patent drawing

AI summary

A hydraulic brake hose assembly includes a suspension component, a brake hose connected to the suspension component, and a support bracket connected to the brake hose and the suspension component. The support bracket includes a base having a forward edge portion, a rear edge portion and opposite side edge portions. A forward wall extends upwardly from the forward edge portion. A sidewall extends upwardly from one of the side edge portions. A single mounting opening is located on the base. An anti-rotation tab extends downwardly from the base. The suspension component includes a portion having a mounting aperture and a recess respectively corresponding with the single mounting opening and the anti-rotation tab of the support bracket. The support bracket prevents rotation of the brake hose relative to the support bracket as the support bracket is secured to the portion of the suspension component via a single fastener.