Interlocking Brake Cable Guide for Saddle-Type Vehicle

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional interlocking brake structures for saddle-type vehicles face challenges in suppressing excessive displacement of the curved portion of the interlocking brake cable while maintaining its degree of freedom of flexure, leading to potential mechanical issues and inefficiencies.

Innovation Solution

The interlocking brake structure incorporates a plate-like member with ribs to guide the curved portion of the brake cable, ensuring it is securely held without restricting its flexure, using existing components to minimize costs and protect the cable from vibrations and external elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the curved portion of the interlocking brake cable is left unsupported to ensure freedom of flexure, then the cable can move freely, but excessive displacement occurs causing mechanical issues

Engineering Contradiction:
Improvedegree of freedom of flexureVSAvoidexcessive displacement suppression
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

A guide member is introduced as an intermediary component between the brake cable's curved portion and the vehicle body. This guide member provides a controlled path for the cable to follow, allowing flexure while preventing excessive displacement that would occur if the cable were completely unsupported.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide member changes the physical parameters of the cable's movement by providing a constrained path. Instead of free movement in all directions, the cable's displacement is parameterized along a specific trajectory defined by the guide member's geometry, ensuring controlled flexure without excessive displacement.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If clamps are used to support the brake cable on the vehicle body frame, then the cable is secured, but the flexure of the curved portion is restricted

Engineering Contradiction:
Improvecable support and securityVSAvoidflexure freedom
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The guide member serves as an intermediary that replaces traditional clamps. Instead of rigidly fixing the cable at discrete points like clamps do, the guide member provides continuous support along the cable's path, securing the cable while allowing it to flex along the intended trajectory.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide member is provided with multiple guide portions that segment the support function along the cable's path. Each guide portion handles a specific section of the cable's curved portion, providing localized support that maintains overall cable security while preserving flexure freedom in each segment.

Inventive Principle:
Principle #1Segmentation

3Reliability

If multiple separate components are used to support and guide the brake cable, then the cable is well-supported, but the device complexity increases

Engineering Contradiction:
Improvecable supportVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple guide portions that would traditionally require separate components are merged into a single integrated guide member. This guide member is attached to the vehicle body as one unit, providing comprehensive support for the cable's curved portion while reducing the total number of components needed in the system.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The guide member performs multiple functions simultaneously: it supports the cable, guides its movement, prevents excessive displacement, and protects the curved portion. This multi-functional design eliminates the need for separate components for each function, reducing overall device complexity while maintaining reliable cable support.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3521151B1Interlocking brake structure for saddle-type vehicle
Publication Date: 2021.07.07 HONDA MOTOR CO LTD
  • EP3521151B1 patent drawingFigure 1
  • EP3521151B1 patent drawingFigure 2
  • EP3521151B1 patent drawingFigure 3

AI summary

There is provided an interlocking brake structure for a saddle-type vehicle capable of suppressing excessive displacement of a curved portion in an interlocking brake cable while ensuring the degree of freedom of the flexure of the curved portion. A curved portion 112a includes a forward extending portion 112e extending forward from a top 112c of a curved portion as a rear end of the curved portion 112a, and a rearward extending portion 112d extending rearward from an equalizer 111 side. A front side fender 78 is provided between the curved portion 12a and the sub frame 26, and the front side fender 78 is provided with a lower rising portion 78m for guiding the rearward extending portion 112d, and an upper holding portion 78q for guiding the forward extending portion 112e.