Straddled Vehicle Loading Hook Recess for Item Stability

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Solution Overview

Problem

Conventional straddled vehicles experience instability when an item is hooked on the loading hook, as it tends to swing significantly in back-and-forth or right-and-left directions.

Innovation Solution

The straddled vehicle incorporates a leg shield with a first recess positioned directly below the loading hook, which extends in an up-and-down direction to accommodate the item and enhance stability. The recess is designed to allow the item to fit by gravity, thereby stabilizing its position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an item is hooked on the loading hook disposed on the leg shield, then the item can be carried, but the item greatly swings in back-and-forth or right-and-left direction causing instability

Engineering Contradiction:

Improveloading capabilityVSAvoiditem position stability

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The first recess is formed within the leg shield structure to create a nested configuration where the item hooked on the loading hook can be accommodated within the recess space, reducing swinging motion and improving position stability while maintaining loading capability

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The first recess extends in the up-and-down direction (vertical dimension) to provide accommodation space for the item, utilizing the vertical dimension to stabilize the item's position without interfering with the horizontal loading function of the loading hook

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Strength

If the leg shield includes a panel to enhance stiffness and load bearing performance, then the loading hook's load bearing performance is improved, but the device complexity increases

Engineering Contradiction:

Improveloading hook load bearing performanceVSAvoidleg shield structure complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The panel is merged with the leg shield to form an integrated structure that enhances both the stiffness of the leg shield and the load bearing performance of the loading hook, while avoiding the need for separate reinforcing components that would increase device complexity

Inventive Principle:

Principle #5Merging (Combining)

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

This configuration effectively stabilizes the item hooked on the loading hook, reducing swinging motion and enhancing overall stability during vehicle travel.

Implementation Method 1

when hooked on the loading hook, the item is likely to fit into the first recess by the gravity thereof

Methodology Applied

Scientific EffectGravity: Gravitation

Data Source

PatentEP4361009B1Straddled vehicle

Publication Date: 2025.01.29 YAMAHA MOTOR CO LTD

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AI summary

A straddled vehicle includes a head pipe, a front cover, a leg shield, and a loading hook. The front cover is disposed further on a front side than the head pipe. The leg shield is disposed directly behind the front cover. The loading hook is disposed on the leg shield. The leg shield includes a first recess disposed directly below the loading hook. The first recess extends in an up-and-down direction and forms a space in which an item, hooked on the loading hook, is enabled to be accommodated at least in part.