Adjustable Wearable Load Carrier Frame for Ergonomic Strain Reduction
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Solution Overview
Problem
Conventional backpacks lack adjustability and customization for the carrying frame and additional supports, leading to discomfort and increased risk of muscle strain when carrying heavy or awkwardly shaped loads, as they require the load to be pushed away from the body and necessitate frequent removal for adding or removing items.
Innovation Solution
A wearable load carrier with adjustable rails, a height-adjustable support platform, and adjustable handles, along with shoulder, chest, and waist straps, allows for customizable distribution of loads and minimizes strain by maintaining the load's center of gravity close to the body, enabling secure and comfortable carrying of varying sizes and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional backpacks use rigid or semi-rigid frames, then structure and load distribution are provided, but adjustability and customization for varying load sizes and configurations are limited
Solution Approach 1:
The patent applies the dynamics principle by making the frame adjustable rather than fixed. The rails can be repositioned along the length of the frame, and the support platform can be adjusted in height and angle, allowing the structure to adapt dynamically to different load sizes, weights, and configurations while maintaining structural integrity through controlled mobility of key components.
Solution Approach 2:
The frame is segmented into multiple adjustable components including rails that can be repositioned, a support platform with adjustable height and angle, and separate handling members. This segmentation allows each component to be independently adjusted to optimize the frame's configuration for specific loading conditions, resolving the contradiction between structural stability and adaptability.
2Ease of operation
If the load is pushed away from the back of the wearer, then the center of gravity is moved away from the body, but comfort and muscle strain reduction are compromised
Solution Approach 1:
The support platform's adjustable angle feature allows it to be tilted forward, enabling the load to be positioned closer to the wearer's back while maintaining proper ergonomics. This dynamic adjustment resolves the contradiction by allowing the platform to adapt its orientation based on the load characteristics, keeping the center of gravity close to the body to reduce muscle strain while still providing ease of operation.
3Ease of manufacture
If conventional backpacks have fixed frames, then manufacturing is simplified, but customization for different load configurations requires frequent removal and reattachment
Solution Approach 1:
The frame incorporates quick-adjust mechanisms that allow the rails and support platform to be repositioned without complete disassembly. The rails can be slid to different positions and locked in place, and the support platform can be adjusted in height and angle, enabling rapid reconfiguration for different load configurations while maintaining relatively simple manufacturing compared to fully custom solutions.
4Ease of operation
If additional supports are added to the backpack, then load distribution and comfort are improved, but device complexity increases
Solution Approach 1:
The frame components serve multiple functions: the adjustable rails provide both structural support and positioning adjustment, the support platform provides load distribution and can be tilted for ergonomics, and the handling members facilitate loading and unloading. This multi-functionality reduces the need for separate dedicated components, improving comfort while controlling overall device complexity.
Data Source
AI summary
The wearable load carrier is a body-mounted carrier for carrying and transporting loads, such as boxes, packages, containers and the like. The wearable load carrier is supported by the back or torso and shoulders of the user, and is adjustable to receive and carry loads of varying sizes and configurations. The wearable load carrier includes a pair of rails, each having an upper end and a lower end, which partially define a carrier frame. A support platform is provided for supporting the load. The support platform includes front and rear edges, the front edge being selectively secured to and extending between the pair of rails at an adjustable height and tilt. A pair of shoulder straps, a waist strap and a chest strap are provided for releasably securing the carrier to the user's back or torso.