Load Reducing Backpack With Elastic Cushion Pressure Distribution
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Solution Overview
Problem
Existing backpack designs cause discomfort and fatigue in the shoulders and waist due to uneven pressure distribution when carrying heavy loads for extended periods.
Innovation Solution
A load reducing backpack with adjustable shoulder straps, a cushion system, and elastic components that distribute weight evenly across the back, featuring a removable cushion with a mounting slot, elastic members, and breathable design elements to alleviate pressure and improve comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the backpack carries heavy articles for long periods, then the storage capacity and duration of use are improved, but the pressure on the user's back and shoulders increases causing fatigue and discomfort
Solution Approach 1:
The patent applies beforehand cushioning by incorporating a cushion component in the backpack structure before the user experiences discomfort. The cushion is positioned to contact the user's back and is connected to elastic members that provide continuous support, thereby preventing pressure concentration and fatigue before they occur during heavy load carrying.
Solution Approach 2:
The patent uses an intermediary approach by introducing a cushion as a mediator between the heavy load and the user's body. The cushion acts as a pressure-distributing interface that transfers the load from concentrated points on the back and shoulders to a larger area, reducing the harmful pressure effect while maintaining storage capacity.
2Strength
If the backpack uses a rigid structure to support heavy loads, then the strength and stability are improved, but the comfort and pressure distribution are worsened
Solution Approach 1:
The patent applies parameter changes by transitioning from a purely rigid structure to a structure with variable mechanical properties. The elastic members provide rigidity when needed to support heavy loads but can deform to distribute pressure, effectively changing the structural parameters to balance strength and comfort.
Solution Approach 2:
The patent uses composite materials by combining rigid structural components with elastic cushioning elements. This composite structure integrates the strength of rigid materials for load bearing with the pressure-distributing properties of elastic materials, achieving both structural integrity and comfort.
3Device complexity
If the backpack is designed with fixed components for simplicity, then the device complexity is reduced, but the adaptability and comfort adjustment are worsened
Solution Approach 1:
The patent applies dynamics by introducing movable and adjustable components to the backpack structure. The cushion can be positioned at different locations on the back pad, and the elastic members can be adjusted to change the support characteristics, allowing the structure to adapt to different user needs and load conditions while maintaining reasonable simplicity.
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
Effectively reduces pressure on the shoulders and back by dispersing weight through the cushion and elastic components, allowing for increased comfort and reduced fatigue, even with heavy loads, and enhances storage functionality with adjustable compartments.
Implementation Method 1
The inner of the mounting plate is fixed with a plurality of elastic members. The rear wall of the cavity is provided with an elastic network, a left side, a right side and a bottom side of the elastic network is fixed with the inner wall of the cavity to form a storage bag.
Implementation Method 2
The cushion is mounted in the mounting slot, the cushion and the back pad are perpendicular to each other to form a stable structure, which can support effectively the articles in the load reducing backpacks and disperse the pressure of the articles
Data Source
AI summary
A load reducing backpack comprises two shoulder straps, a main body and at least a cushion; the main body has a cavity, a back part of the cavity is provide with a back pad, a lower part of the back pad is provided with a mounting slot, the cushion is mounted disassembly in the mounting slot and attached to a front wall of the cavity; the load reducing backpack is carried on the user's back, the shoulder straps hang on the user's shoulders; adjust the length of the shoulder straps, so that the side, near to the back pad, of the cushion against the user's waist, thereby absorbing the pressure of the articles in the load reducing backpack and reducing the pressure on the user's back and the user's shoulders.