Ergonomic Carrying System with Stomach-Mounted Connecting Device
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Solution Overview
Problem
Existing backpacks and tool belts lack ergonomic design, making them difficult to put on and take off, particularly for users with varying body sizes and shapes, and can cause discomfort due to uneven weight distribution and pressure on the shoulders and breasts.
Innovation Solution
A carrying system with adjustable straps and a connecting device that distributes the load across the back, stomach, and hips, featuring soft and flexible covers, and quick-release mechanisms to accommodate different user needs and sizes, ensuring comfortable fit and easy access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional backpacks with multiple fastening points are used, then the backpack can be securely fastened, but it becomes difficult to put on and take off rapidly
Solution Approach 1:
The connecting device is divided into a first portion on the first carrying strap and a second portion on the second carrying strap, which can be releasably attached to each other. This segmentation allows the backpack to be quickly connected or disconnected by simply attaching or detaching the two portions, eliminating the need to manipulate multiple fastening points simultaneously.
Solution Approach 2:
The invention extracts the fastening function from multiple distributed fastening points and concentrates it into a single connecting device with releasable attachment. This allows the backpack to be secured with one fastening action rather than requiring coordination of multiple fasteners, significantly improving ease of operation while maintaining reliability.
2Device complexity
If weight is placed primarily on the shoulders, then the backpack structure is simple, but it causes great pain in the shoulders and neck
Solution Approach 1:
The carrying straps are configured to extend from the back up and over the shoulders close to the neck, then straight down close to the center axis of the user, with the connecting device positioned on the stomach. This three-dimensional routing distributes the load across multiple body regions (back, shoulders, and abdomen) rather than concentrating it on the shoulders alone, reducing harmful pressure points while maintaining structural simplicity.
Solution Approach 2:
The connecting device positioned on the stomach acts as an intermediary load-bearing point, transferring part of the weight from the shoulders to the abdominal region. This intermediary placement allows the backpack to leverage the user's core muscles and abdominal strength, reducing the burden on the shoulders and neck while adding minimal structural complexity.
3Reliability
If shoulder straps are made tight fitting, then the backpack is secure, but it causes discomfort for women due to pressure on the breasts
Solution Approach 1:
The carrying straps are configured to extend close to the center axis of the user rather than following traditional symmetric shoulder-to-shoulder routing. This asymmetric path positions the connecting device on the stomach and routes the straps to clear the breast area, maintaining secure fit through proper positioning while eliminating pressure on sensitive areas.
Solution Approach 2:
The strap configuration provides different characteristics in different regions: the straps are positioned to be secure on the back and shoulders while specifically clearing the breast area. The local routing of the straps ensures that tight fitting provides security where needed without causing discomfort in sensitive areas, achieving regional optimization of comfort and security.
4Device complexity
If the connecting device is fixed in position, then the structure is simple, but it cannot accommodate different user sizes and shapes
Solution Approach 1:
The connecting device is made displaceable along the carrying straps, allowing it to move to different positions to accommodate various user body types, sizes, and preferences. This dynamic positioning capability enables the same backpack to fit different users comfortably without requiring multiple models or complex adjustment mechanisms, balancing structural simplicity with adaptability.
Data Source
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AI summary
A carrying system comprising a load receptive unit for at least partly covering the back of a user, a first carrying strap extending between a first position of an upper section of said load receptive unit and a first position of a lower section of said load receptive unit, a second carrying strap extending between a second position of an upper section of said load receptive unit and a second position of a lower section of said load receptive unit, and a connecting device. The connecting device comprises a first portion arranged on the first carrying strap and a second portion arranged on the second carrying strap and releasably attachable to the first portion, wherein the first portion and the second portion of the connecting device are displaceably arranged along the extension of the first and second carrying strap. Also, a backpack and a tool belt comprising the carrying system and a method for attaching the carrying system is provided.