Saddle Vehicle Grab Rail Luggage Hook Design

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Solution Overview

Problem

Conventional grab rails on saddle riding vehicles with protruding luggage hooks face issues where attached items like ropes can easily fall out due to loose engagement.

Innovation Solution

A grab rail design with a grip extension, front side fixation portion, and coupler forming a luggage hook, where the coupler is offset inside the vehicle width direction, ensuring secure attachment and compact placement, and the fixation portion is covered for a neat appearance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a protruding luggage hook is used, then rope or fixing items can be easily hooked, but the rope or fixing items may fall out when loose

Engineering Contradiction:

Improveease of hookingVSAvoidsecuring reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

Instead of using a protruding hook shape that allows easy hooking but poor retention, the invention inverts the approach by creating a recessed opening shape. This opening is defined by the grip extension, front side fixation portion, and coupler, forming a cavity that receives and secures the fixing item, preventing it from falling out while still allowing easy insertion

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The fixing item is nested within the opening formed by the grip extension, front side fixation portion, and coupler. The coupler itself is nested within the vehicle body structure, with its coupling surface engaged by the grip extension. This nested arrangement ensures the fixing item is contained and secured within the structured opening

Inventive Principle:

Principle #7Nested doll (Nesting)

2Volume of moving object

If the coupler is positioned further inside in vehicle width direction, then compact placement is achieved, but access to the opening may be restricted

Engineering Contradiction:

ImprovecompactnessVSAvoidaccessibility

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

The opening is oriented in the vehicle width direction, allowing access from the side rather than requiring space in the vehicle longitudinal direction. The coupler is positioned further inside in the vehicle width direction, and the opening extends in this dimension, enabling compact longitudinal placement while maintaining side accessibility for inserting fixing items

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11492058B2Grab rail of saddle riding vehicle

Publication Date: 2022.11.08 HONDA MOTOR CO LTD

AI summary

A grab rail of a saddle riding vehicle is secured to a rear portion of a body frame. The grab rail includes: a grip that extends in a vehicle longitudinal direction; a grip extension that extends downward from a front end of the grip; a front side fixation portion that is connected to a lower end of the grip extension and is attached to the body frame; and a coupler that couples the grip extension and the front side fixation portion. The grab rail includes a luggage hook that is formed by an opening. The opening is defined by the grip extension, the front side fixation portion and the coupler.