Hip Strap Backpack Support Relieving Shoulder Strain
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current solutions for carrying heavy backpacks, such as rolling or using wheeled bags, are impractical, cause spinal imbalances, and are often prohibited in educational settings, while existing back support systems are bulky, unattractive, or fail to securely hold the bag during movement.
Innovation Solution
A removable carrying strap system that encircles the hips and lower back, distributing the bag's weight to the lumbar and abdominal regions, with adjustable and stabilizing straps to maintain the bag's position parallel to the back, ensuring stability and comfort during movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid frame is used to support the bag on the back, then the weight is relieved from the shoulders, but the device becomes bulky and unattractive
Solution Approach 1:
The patent replaces the rigid frame structure with flexible straps made of textile material. The carrying strap and retaining strap form a flexible support system that conforms to the body and bag shape, eliminating the bulkiness of rigid frames while maintaining weight relief functionality through strategic placement around the hips and lower back.
Solution Approach 2:
The invention changes the structural parameters from rigid to flexible, and from extended three-dimensional frame to compact two-dimensional strap configuration. This transformation allows the device to provide adequate support when deployed while remaining compact and unobtrusive when not in use.
2Volume of moving object
If a belt with a platform is used to support the bag, then the device size is reduced, but the bag is not held securely during movements
Solution Approach 1:
The patent combines the support function and retention function into a single integrated strap system. The carrying strap provides support by encircling the hips and lower back, while the retaining strap with closing means secures the bag to the carrier, creating a unified system that achieves both size reduction and secure holding.
Solution Approach 2:
The invention uses textile materials for the straps that combine flexibility, strength, and comfort properties. The textile construction allows the straps to conform to body contours for secure fitting while remaining flexible enough to accommodate movement, overcoming the limitations of rigid or purely platform-based solutions.
3Strength
If the carrying strap is permanently attached to the bag, then the bag structure is strengthened, but the device cannot be stored compactly or used on different bags
Solution Approach 1:
The patent divides the support system into separable components: the carrying strap with closing means that can be independently attached and detached from the bag. This segmentation allows the strap to be securely fastened when needed while enabling easy removal and compact storage when not in use, and permits use with multiple different bags.
Solution Approach 2:
The invention introduces dynamic attachability to the strap system through closing means that allow the strap to transition between attached and detached states. This dynamic characteristic provides versatility for different usage scenarios while maintaining structural integrity when the strap is fastened to the bag.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention concerns a device (100) for assisting the dorsal carrying of a bag of the backpack or satchel type by an individual such as a child or an adolescent, the bag comprising a pair of shoulder straps. The dorsal carrying assistance device comprises: - a strap (110) for carrying the bag, the strap being intended to enclose a part of the bag and the hips of the individual; and - a means (120) for removably holding the carrying strap on the bag. The dorsal carrying assistance device can also advantageously comprise a means (130) for stabilising the bag.