Ergonomic Bicycle Handlebar with Adjustable Sweep and Slope Angles

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Solution Overview

Problem

Conventional bicycle handlebars do not provide optimal ergonomic and aerodynamic positioning, leading to increased fatigue, strain, and risk of injury, as they force cyclists into unnatural hand and shoulder alignments, which can decrease efficiency and increase wind resistance.

Innovation Solution

A bicycle handlebar system with a designed shape that includes a top bar section, stem clamp area, and drop portions with thumb indexes, allowing for adjustable sweep and slope angles to position the rider's hands, elbows, and shoulders for improved ergonomics and aerodynamics, reducing fatigue and injury risk.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional straight handlebars are used, then the structure is simple and easy to manufacture, but the cyclist's hands and shoulders are forced into unnatural positions causing fatigue and injury

Engineering Contradiction:

Improvecyclist comfort and ergonomicsVSAvoidhandlebar structure complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The handlebar is divided into multiple functional sections: a curved top bar section for ergonomic hand positioning, a stem clamp area for secure attachment, and drop portions with thumb indexes for additional grip options. This segmentation allows each section to be optimized for its specific function while maintaining overall structural integrity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The top bar section features a curved design that naturally guides the cyclist's hands into a relaxed, ergonomic position. The curvature of the handlebar follows the natural anatomy of the arms and shoulders, reducing strain and fatigue compared to straight handlebars.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Ease of operation

If drop handlebars with U-shaped portions are used, then hand and arm alignment with torso is improved, but the bent-over position increases fatigue

Engineering Contradiction:

Improvehand and arm alignmentVSAvoidcyclist energy consumption

Core Design Contradiction:

Ease of operationVSUse of energy by moving object

Solution Approach 1:

The handlebar provides different hand positions with distinct ergonomic qualities: the curved top bar section offers an upright position for reduced fatigue, while the drop portions with thumb indexes provide aerodynamic positioning. Cyclists can select the position that best suits their needs for each riding condition.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The handlebar design allows cyclists to dynamically switch between different hand positions during riding. The curved top bar and drop portions with thumb indexes enable easy transitions between upright and aerodynamic positions, allowing adaptation to changing riding conditions and fatigue levels.

Inventive Principle:

Principle #15Dynamics

3Use of energy by moving object

If handlebars force prone grip position, then the structure is simple, but wind resistance increases and breathing is constricted

Engineering Contradiction:

Improvebreathing efficiencyVSAvoidwind resistance

Core Design Contradiction:

Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The curved top bar section naturally positions the cyclist's arms and shoulders in a more open, relaxed configuration that facilitates better breathing. The curvature avoids the constriction caused by straight handlebars, allowing the lungs to expand fully while maintaining aerodynamic efficiency.

Inventive Principle:

Principle #14Spheroidality (Curvature)

4Ease of operation

If conventional handlebars are used, then manufacturing is economical, but proper positioning for injury prevention is not achieved

Engineering Contradiction:

Improvesafety and injury preventionVSAvoidmanufacturing complexity

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

The handlebar is segmented into functional sections (curved top bar, stem clamp area, drop portions with thumb indexes) that can be manufactured using standardized processes. The segmented design allows for optimized manufacturing of each section while maintaining overall structural integrity and safety features.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The handlebar incorporates specific geometric parameters such as curvature radius of the top bar section, angle of the drop portions, and positioning of thumb indexes that are optimized for safety and ergonomics. These parameters can be adjusted during manufacturing while using standard production techniques.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11919601B2Ergonomic bicycle handlebar and cycling systems

Publication Date: 2024.03.05 COEFFICIENT CYCLING LLC

AI summary

An ergonomic and aerodynamic bicycle handlebar system having appropriate sweep angles and slope angles, embodiments of which can vary both for the type of application and the width of the bar, provides improved energy efficiency, comfort and increased center of gravity control. Flare angle and drop angle can also be adjusted for particular applications. The handlebar may be made of carbon fiber or other suitable materials. Various alternative embodiments are disclosed for drop handlebars and mountain bike handlebars.