Motorcycle Protective Frame With Sliding Pads for Fall Impact Control

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Solution Overview

Problem

Current protective devices for two-wheeled motorized vehicles, such as motorcycles, often cause significant material damage to the vehicle and fail to protect the motorcyclist in the event of a fall, as they stress and deform original parts like handlebars, and do not prevent the rider from being trapped under the vehicle.

Innovation Solution

A protective device comprising multiple pairs of metal frames and thermoplastic pads offset from the vehicle's sliding faces, which distribute energy and prevent direct impact during a fall, ensuring the vehicle slides rather than stops suddenly, thus reducing damage and protecting the motorcyclist by maintaining a gap between the vehicle and the road.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If mechanically welded steel tubes are used as protective equipment, then the motorcycle is protected from damage, but the handlebars and original parts suffer stress and deformation

Engineering Contradiction:
Improveprotective capabilityVSAvoidstress and deformation on original parts
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary protective structure consisting of frames with pads that contact the ground first during a fall. This mediator absorbs the impact force before it reaches the motorcycle's original parts, particularly the handlebars. The frames are positioned to create a protective barrier between the ground and the motorcycle body, distributing the impact force across multiple contact points rather than concentrating it on vulnerable components.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The protective device is segmented into multiple independent frames (typically three frames forming a triangular structure) with separate pads at each vertex. This segmentation allows the impact force to be distributed across multiple contact points rather than concentrated on a single point. Each frame independently absorbs portion of the impact energy, reducing the stress on any single original part of the motorcycle.

Inventive Principle:
Principle #1Segmentation

2Strength

If protective structures are added around the motorcycle, then damage to the motorcycle is prevented, but the motorcyclist may still be trapped under the motorcycle

Engineering Contradiction:
Improvemotorcycle protectionVSAvoidrisk of motorcyclist being trapped
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The protective frames extend outward from the motorcycle body in the lateral dimension, creating a three-dimensional protective structure. The pads are positioned to contact the ground at points远离 the motorcycle's center of gravity and the rider's position. This spatial arrangement ensures that during a fall, the frames contact the ground first, creating a protective envelope that prevents the motorcycle from collapsing onto the rider, thus addressing the trapping risk through dimensional positioning.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Strength

If heavy protective equipment is installed on the motorcycle, then protection is improved, but the device becomes cumbersome and interferes with driving

Engineering Contradiction:
Improveprotective capabilityVSAvoiddriving maneuverability
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The protective pads are designed as relatively thin, lightweight components that can be made from composite materials or engineered plastics. These pads provide adequate protective function while minimizing added weight and bulk. The frames are constructed with optimized cross-sections that provide necessary strength while keeping mass low, reducing the overall burden on the motorcycle and maintaining ease of operation.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The protective structure is designed to be dynamic rather than rigid - the frames and pads are configured to allow controlled movement and deformation during impact, absorbing energy through controlled collapse rather than rigid resistance. This dynamic design reduces the inertial effects during normal riding maneuvers while maintaining protective capability during falls.

Inventive Principle:
Principle #15Dynamics

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

The solution effectively reduces the risk of damage to the vehicle's original parts, prevents the motorcyclist from being trapped, and facilitates extraction by allowing the vehicle to slide and dissipate energy, while being compact, lightweight, and reversible without modifying the original structure.

Implementation Method 1

the two-wheeled motorized vehicle slides on the skids rather than stopping abruptly, which allows it to disperse energy and slow down

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4166434B1Protective device for a two-wheeled motor vehicle
Publication Date: 2024.08.28 DELETANG PASCAL
  • EP4166434B1 patent drawingFigure 1~2
  • EP4166434B1 patent drawingFigure 3~5
  • EP4166434B1 patent drawingFigure 6~8

AI summary

Protective device (1) for a two-wheeled motor vehicle (100), in particular for driver training, comprising at least three pairs of metallic frames (2, 3, 4a, 4b, 5, 6) configured to be fixed respectively on either side of the two-wheeled motor vehicle (100), in particular at the level of a handlebar (7), an engine block (8), an exhaust pipe (9) and/or a footrest (10), a seat (11) and a fork (12) of the two-wheeled motor vehicle (100), characterized in that it further comprises thermoplastic pads (13) fixed on each frame (2, 3, 4a, 4b, 5, 6) by projecting outwards, the frames (2, 3, 4a, 4b, 5, 6) offsetting the sliding faces (14) of the pads (13) of at least 5cm from the two-wheeled motor vehicle (100), the sliding faces (14) of the pads (13) being flat and elongated.