Treadmill Cushioning via Granular Bladder and Roller Distribution
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Solution Overview
Problem
Conventional treadmill devices do not effectively cushion the impact between a runner's feet and the platform, leading to discomfort and potential injury.
Innovation Solution
Incorporating a flexible bladder filled with granular material, such as sand, beneath the treadmill belt to create a cushioned running surface that simulates running on sand, with a roller assembly for even distribution of the material and optional fans for a beach-like experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional solid platform is used, then structural strength is maintained, but impact cushioning is insufficient
Solution Approach 1:
A flexible bladder filled with granular material (sand or water) is positioned between the user's feet and the rigid platform base. This intermediary cushioning layer absorbs impact forces while the rigid base maintains structural strength, resolving the contradiction between cushioning and strength.
Solution Approach 2:
The platform's mechanical properties are changed by introducing a flexible bladder that can deform under load. The bladder's flexibility parameter allows it to compress and absorb impact, while the granular material inside provides adjustable cushioning characteristics, transforming the rigid platform into a dynamically responsive surface.
2Object-affected harmful factors
If granular material is added for cushioning, then impact absorption improves, but device complexity increases
Solution Approach 1:
The cushioning system is segmented into a flexible bladder containing granular material, separated from the main platform structure. This allows the cushioning function to be independently optimized and maintained without affecting the overall platform structure, reducing system complexity.
Solution Approach 2:
The granular material automatically distributes itself within the bladder through gravity and user movement, eliminating the need for complex mechanical distribution systems. The material self-adjusts to provide even cushioning across the platform surface.
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 provides enhanced comfort and reduced impact on the user's joints by distributing the force of each step, while also simulating a beach running experience with added ventilation and sensory elements.
Implementation Method 1
cushioning impact between a runner's feet and the treadmill platform
Implementation Method 2
A granular cushioning material 26 is contained in a flexible bladder 28
Implementation Method 3
A roller assembly 44 is coupled to the track 42 and extends across the bottom 34 of the drawer 32. The roller assembly 44 is movable along the track 42 beneath the bladder 28 to enhance even distribution of the cushioning material 26 within the bladder 28.
Implementation Method 4
optional fans for a beach-like experience
Data Source
AI summary
A cushioned treadmill is provided for cushioning impact between a runner's feet and the treadmill platform. The cushioned treadmill includes a base and a platform coupled to the base. The platform has a first side and a second side. A belt assembly is coupled to and extends between the first side and the second side of the platform. The belt assembly includes a movable belt forming a running surface designed for supporting a user on the platform. A cushioning material is contained in a flexible bladder positioned in the platform beneath the running surface.