Elastic Strap Buckle System for Adjustable Resistance and Controlled Tension Release
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Solution Overview
Problem
Existing personal exercise apparatuses lack the ability to easily adjust elastic strap resistance and fail to prevent abrupt tearing under excessive tension, posing safety risks during use.
Innovation Solution
The apparatus features a buckle system that allows adjustable partitioning of elastic straps and incorporates safety members made of woven fabric or strings designed for gradual tearing, preventing sudden rupture under high pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elastic straps are used for exercise resistance, then exercise functionality is provided, but the straps may tear abruptly under excessive tension posing safety risks
Solution Approach 1:
The patent incorporates safety members (parachute cords or fabric panels) with controlled tear strength that is intentionally lower than the elastic straps. These safety members are attached in advance to the exercise apparatus to catch and gradually release the elastic energy stored in the straps before the straps can snap, thereby cushioning the potential harmful effect of abrupt tearing.
Solution Approach 2:
The patent converts the potentially harmful abrupt tearing of elastic straps into a beneficial gradual release mechanism by using safety members designed to tear at controlled rates. The harmful elastic energy that could cause injury is transformed into a controlled, gradual release through the tearing of the safety members, turning a safety hazard into a safety feature.
2Adaptability or versatility
If elastic strap length is fixed, then manufacturing is simplified, but resistance levels cannot be adjusted for different exercise needs
Solution Approach 1:
The patent divides the elastic strap into multiple segments or sections using buckles that can be positioned at different locations along the strap. This segmentation allows users to adjust the effective length of the elastic strap by moving or adding buckles, thereby varying the resistance level without requiring multiple complete straps or complex adjustment mechanisms.
Solution Approach 2:
The patent implements a dynamic adjustment system where buckles can be moved along the elastic strap to change the resistance characteristics. This dynamic configuration allows the same elastic strap to provide multiple resistance levels by simply repositioning the buckles, maintaining simplicity while achieving adaptability.
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
Enables safe and adjustable resistance levels during exercise by allowing controlled tension release, reducing the risk of accidents from snapped straps.
Implementation Method 1
a pair of elastic straps correspondingly having lengths
Implementation Method 2
a pair of safety members correspondingly linked to the pair of the elastic straps at a second longitudinal end of each of the elastic straps, and constructed for a gradual tearing responsive a pressure above a sufficiently high pressure
Data Source
AI summary
An exercising apparatus, comprising a pair of elastic straps correspondingly having lengths, and a pair of buckles correspondingly mounted on the pair of the elastic straps, where each of the buckles having a frame with a passage for each of the elastic straps and oppositely directed flanges and an appendage connect and inclined to the frame on which a first longitudinal end of each of the elastic straps is attached thus compelling each of the elastic straps to form S shape over and in each of the buckles, consequently longitudinally partitioning each of the elastic straps by sliding each of the buckles along each of the elastic straps to releasably fasten each of the buckles on each of the elastic straps.