Backpack Frame with Perpendicular Polymeric Sheet for Load Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional backpacks are unsuitable for carrying tree climbing equipment as they can be damaged by the equipment and cause discomfort or injury due to the transfer of forces and pressures to the user's back.
Innovation Solution
A backpack apparatus with an external frame and a durable polymeric sheet that distributes loads and protects both the backpack and the user, featuring a design that allows for the secure carrying of climbing sticks and tree stands, and also serves as a cutting board for processing game.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional backpacks are used to carry tree climbing equipment, then the backpack can be lightweight and simple in structure, but the backpack material gets damaged by hard and sharp climbing equipment
Solution Approach 1:
The backpack is divided into distinct functional layers: an external frame structure, a durable polymeric sheet lining the interior, and the outer backpack material. This segmentation allows each component to perform its specific function - the frame provides structural support, the polymeric sheet protects against damage from climbing equipment, and the outer material provides weather protection and carries the load.
Solution Approach 2:
A durable polymeric sheet is introduced as an intermediary layer between the climbing equipment and the backpack material. This intermediate layer absorbs the mechanical stress and potential damage from hard and sharp climbing equipment, preventing direct contact with and damage to the backpack's outer material.
2Ease of operation
If conventional soft material backpacks are used to carry climbing equipment, then the backpack is flexible and easy to pack, but the forces and pressures from the equipment transfer to the user's back causing discomfort or injury
Solution Approach 1:
The load-bearing function is separated from the flexible outer shell. The external frame and rigid polymeric sheet create a structured interior that distributes forces, while the outer backpack material maintains flexibility for packing and movement. This segmentation allows the rigid structure to handle force distribution while the flexible exterior maintains ease of operation.
Solution Approach 2:
The outer backpack shell remains flexible and soft for ease of packing and movement, while the internal rigid structure (frame and polymeric sheet) handles the force distribution. This allows the backpack to maintain flexibility where needed while providing rigid protection and force distribution against the user's back.
3Adaptability or versatility
If climbing equipment is carried in conventional backpacks, then the equipment can be transported, but the hard and sharp objects damage the backpack material
Solution Approach 1:
The durable polymeric sheet serves as a protective intermediary between the climbing equipment and the backpack material. This intermediate layer is specifically designed to resist damage from hard and sharp objects, allowing the backpack to carry challenging equipment while preserving the integrity of the outer backpack material.
Solution Approach 2:
The backpack employs a composite structure combining different materials with complementary properties: the external frame provides structural support, the durable polymeric sheet offers resistance to punctures and abrasions from climbing equipment, and the outer backpack material provides weather protection and comfort. This composite approach allows the backpack to handle demanding equipment while maintaining material integrity.
Data Source
AI summary
A backpack frame includes external frame components and a durable plastic sheet having a first portion and a second portion that is perpendicular to the first portion. The first portion protects the wearer's back from sharp and hard objects attached to the backpack, such as climbing sticks or tree stand components. The second portion supports the weight of the climbing sticks or tree stand components.