Adjustable Massage Structure for Backpack Shoulder Fit
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Solution Overview
Problem
Existing massage backpacks have a poor massage effect due to inadequate fitting of the massage head with the human shoulder and back, primarily because they rely solely on adjustable shoulder straps, which compromise the up and down positioning and lead to discomfort and fatigue.
Innovation Solution
An adjustable massage structure with a back panel divided into upper and lower parts, featuring a second webbing system that allows for precise adjustment of the massage head's position, ensuring a closer fit with the shoulder and back, utilizing a second adjustment part to maintain accurate positioning and reduce noise, and incorporating a storage space for the massage head with elastic fastening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only shoulder strap structure is used to adjust massage head position, then the structure is simple, but the massage head does not fit closely with the human shoulder and back, resulting in poor massage effect
Solution Approach 1:
The back panel is divided into upper and lower parts with a connection line between them. The shoulder strap connects to the upper part at the connection line and to the lower part through adjustable webbing, segmenting the positioning function into two independent adjustment systems that work together to achieve precise massage head positioning.
Solution Approach 2:
The webbing includes an adjustment component that allows dynamic adjustment of the distance between the shoulder strap and back panel. This dynamic adjustment enables the massage head to fit closely with different human body shapes and sizes, improving massage effect while maintaining structural flexibility.
2Device complexity
If shoulder strap elasticity is adjusted to change massage head position, then the structure is simple, but the up and down position on the human back changes simultaneously, compromising user experience
Solution Approach 1:
The positioning function is segmented into two independent adjustments: the shoulder strap connects to the upper back panel at the connection line for vertical positioning, while the webbing connects to the lower back panel for horizontal positioning. This segmentation allows independent adjustment of up-down and left-right positions without interfering with each other.
Solution Approach 2:
The webbing incorporates an adjustment component that enables dynamic modification of its length, allowing the distance between the shoulder strap and back panel to be changed independently of the vertical positioning provided by the upper connection. This dynamic adjustment provides precise control over massage head position.
3Manufacturing precision
If the back panel is divided into upper and lower parts with adjustable webbing, then the massage head fits closely improving massage effect, but the structure becomes more complex
Solution Approach 1:
The back panel is divided into upper and lower parts with a connection line between them. The shoulder strap connects to the upper part at the connection line and to the lower part through adjustable webbing, segmenting the positioning function into two independent adjustment systems that work together to achieve precise massage head positioning.
Solution Approach 2:
The webbing serves multiple functions: it connects the shoulder strap to the lower back panel, provides horizontal positioning adjustment, and works in conjunction with the upper connection to achieve comprehensive positioning. This multi-functionality reduces the need for separate components, balancing complexity with functionality.
4Manufacturing precision
If the two ends of the second webbing and adjustment part are on the same vertical surface, then positioning is accurate without shaking, but the adjustment mechanism becomes more complex
Solution Approach 1:
The webbing incorporates an adjustment component that enables dynamic modification of its length, allowing the distance between the shoulder strap and back panel to be changed independently of the vertical positioning provided by the upper connection. This dynamic adjustment provides precise control over massage head position.
Solution Approach 2:
The adjustment component allows the user to self-adjust the webbing length to achieve the desired positioning. The structure is designed so that when the webbing is adjusted, the two ends and adjustment part naturally align on the same vertical surface, providing accurate positioning without requiring additional alignment mechanisms.
Data Source
AI summary
An adjustable massage structure having a back panel and at least one shoulder strap set on the back panel, the back panel having a connected upper part and a lower part, an upper end of the at least one shoulder strap is connected to the back panel at a position set on the connection line of the upper part and the lower part of the back panel, the lower end of the at least one shoulder strap is connected to the lower part of the back panel by a first webbing, the at least one shoulder strap is provided with a massage head inside, the at least one shoulder strap and the upper part of the back panel is connected with a second webbing for adjustment of the shoulder strap, the second webbing is provided with a second adjustment part for adjusting the length of the second webbing.