Retractable Support System for Load Distribution and Access

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Solution Overview

Problem

Existing carrying devices, such as backpacks, face challenges in providing quick and ready access to equipment like firearms while minimizing noise and delay, and in efficiently distributing and balancing large loads during movement, especially in outdoor activities like hunting and camping.

Innovation Solution

The implementation of a retractable support system with a non-compressible material loop and a cord mechanism that allows for one-handed deployment and stowage, combined with a frame assembly that transfers load from the shoulders to the waist, using flexible rods and adjustable straps for improved weight distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If equipment is stowed in sheaths on the backpack, then the equipment is protected and organized, but the user cannot readily access the equipment and must place it away from hands

Engineering Contradiction:
ImproveEquipment accessibilityVSAvoidTime to access equipment
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The retractable loop is pre-positioned and held in a ready state within the waist belt, allowing immediate deployment when needed. The equipment can be quickly retrieved by simply pulling the loop outward, eliminating the time-consuming process of opening sheaths or unfastening straps.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The loop transitions from a retracted state (stored within the waist belt) to an extended state (available for equipment support). This dynamic configuration allows the system to adapt between a compact storage mode and an accessible equipment-carrying mode, providing both protection and quick access.

Inventive Principle:
Principle #15Dynamics

2Weight of moving object

If a rigid external frame is used to handle larger loads, then load capacity increases, but load distribution and balancing problems persist

Engineering Contradiction:
ImproveLoad capacityVSAvoidLoad distribution comfort
Core Design Contradiction:
Weight of moving objectVSEase of operation

Solution Approach 1:

The system changes the flexibility parameter of the frame structure by using flexible stays instead of rigid members. These stays can bend and flex to adapt to the user's body movements and hip motion, dynamically adjusting load distribution while maintaining adequate load-bearing capacity.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The flexible stays act as flexible structural elements that replace rigid frame members. They provide the necessary structural support while allowing movement and adaptation to the user's anatomy, improving comfort and load distribution through their flexibility.

Inventive Principle:
Principle #30Flexible shells and thin films

3Reliability

If the retractable loop is made of non-compressible material, then equipment support stability improves, but the loop may snag or create obstruction when not in use

Engineering Contradiction:
ImproveEquipment support stabilityVSAvoidSnagging and obstruction
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The loop is extracted from a permanent external position and instead is retractable into the waist belt when not in use. This removes the potential hazard of snagging or obstruction while maintaining the loop's availability for equipment support when needed.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The loop transitions between retracted and extended states, being dynamic rather than static. When retracted, it is hidden within the waist belt and cannot cause snagging. When extended, it provides stable equipment support. This dynamic behavior resolves the contradiction between stability and snagging risk.

Inventive Principle:
Principle #15Dynamics

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 retractable support system enables quick access to equipment without snagging or obstruction, while the frame assembly reduces strain and fatigue by efficiently transferring load to the waist, allowing for comfortable carrying of larger loads.

Implementation Method 1

the loop is made of a non-compressible material and is flexible

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a cord within an internal compartment, and the cord is configured to pull the retractable loop toward the retracted position

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 3

a frame assembly that transfers load from the shoulders to the waist, using flexible rods and adjustable straps for improved weight distribution

Methodology Applied
Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS11253049B2Carrying devices
Publication Date: 2022.02.22 WL GORE & ASSOC INC
  • US11253049B2 patent drawing
  • US11253049B2 patent drawing
  • US11253049B2 patent drawing

AI summary

A carrying device includes a retractable support system for equipment carried in the hand. In some embodiments, the carrying device comprises a frame assembly for transporting larger loads and optimizing the weight distribution thereof. In some embodiments, the carrying device includes a support shelf. In some embodiments, the carrying device includes an expandable volume.