Segmented Handle Grip Structure for Motorcycle Vibration Damping
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Solution Overview
Problem
Existing anti-vibration handle grips, such as those made of soft materials like rubber, fail to adequately reduce the transmission of vibrations experienced by motorcyclists and other vehicle operators, leading to discomfort and potential health issues like carpal tunnel syndrome due to insufficient vibration attenuation.
Innovation Solution
A handle grip design featuring an internal cylinder connected to an external casing via a sequence of circumferential junctions and grooves, with customizable groove distances based on anthropometric measurements to enhance fit and vibration dampening, utilizing a stiff base disc and flexible external casing materials for improved vibration reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If soft materials like rubber are used for handle grips, then comfort is improved, but vibration attenuation is insufficient
Solution Approach 1:
The handle grip is divided into multiple segments along its longitudinal axis, with circumferential junctions creating grooves that segment the structure. This segmentation allows each section to independently deform and absorb vibration energy, improving overall vibration attenuation while maintaining comfort.
Solution Approach 2:
The invention introduces a radial dimension of flexibility by creating grooves and inner tubes that allow the handle grip to deform radially in response to vibrations. This multi-dimensional deformation capability enhances vibration absorption beyond what single-dimensional soft materials can achieve.
2Ease of manufacture
If uniform handle grip design is used, then manufacturing is simplified, but adaptation to individual hand measurements is poor
Solution Approach 1:
The handle grip incorporates dynamic elements through its grooved structure and inner tubes, allowing it to adapt its shape and flexibility based on the forces applied. This dynamic response enables customization to different hand measurements while maintaining a relatively simple manufacturing process using standard materials and construction methods.
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
Significantly reduces transmitted vibrations, providing enhanced comfort and safety by adapting to individual hand measurements, thereby minimizing the risk of hand and wrist-related pathologies like carpal tunnel syndrome.
Implementation Method 1
anti-vibration handle grip allowing to obviate the drawback mentioned with reference to the known art... significant reduction in the transmitted vibrations
Data Source
Figure 1~4
Figure 5~6
AI summary
A distinctly anti-vibration handle grip, in particular for motorcycles, allows a significant reduction in the transmitted vibrations, eased by a better adaptation of the handle grip to the anthropometric features of the driver's hand, and comprises: an internal cylinder (4), which is fitted on the receiving stem; and an external casing (5), enclosing said internal cylinder ((44)) from a proximal end (2) to a distal end (3) of the anti- vibration handle grip (1), and which is connected to said internal cylinder (4) by means of a sequence of circumferential junctions (6), forming a corresponding sequence of grooves (7) on the external surface of the external casing (5) and respective inner tubes (8), formed by the empty space between external casing (5) and internal cylinder (4), between each one of said grooves (7), wherein the distances between the adjacent grooves depend upon the anthropometric measurements of the user's hand.