T-shirt
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Solution Overview
Problem
Existing baby carrier T-shirts are not universal and fail to maintain the ergonomic position of the baby during periodic movements, leading to incorrect placement and loss of ergonomics due to inadequate pressure distribution.
Innovation Solution
A baby carrier T-shirt design featuring a front and rear part with vertical straps and a U-shaped frontal layer forming an interior seat, along with a reinforcement device in an X or U shape to maintain the baby's spinal column in a C posture, ensuring the hips adopt an M shape and distributing the baby's weight for comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a third layer of horizontal fabric is used to retain the baby in a vertical position, then the baby is secured in position, but the device is not universal as each carrier needs a different size to avoid zero or excess pressure on the abdominal area
Solution Approach 1:
The horizontal fabric layer is made elastic and stretchable, allowing it to dynamically adapt to different baby sizes and carrier sizes. This elasticity enables the same device to universally fit different carriers while maintaining appropriate retention pressure on the abdominal area, resolving the contradiction between reliable retention and universal adaptability
Solution Approach 2:
The elastic properties of the horizontal fabric layer allow the retention mechanism to change its physical parameters (stretch, compression) based on the size of the baby and carrier being used. This parameter adaptability enables universal fit across different sizes while maintaining effective retention
2Reliability
If the baby is placed in the crossing area of the two layers of crossed fabric, then the baby is secured, but during periodic and continuous movements the baby is displaced out of the optimal vertical position, resulting in incorrect placement and loss of ergonomics
Solution Approach 1:
The carrier is divided into multiple functional layers with specific roles: two crossed layers for structural support and a separate horizontal elastic layer for retention. This segmentation allows each layer to perform its function independently, with the horizontal layer actively maintaining baby position during movements while the crossed layers provide structural framework
Solution Approach 2:
The elastic horizontal fabric layer provides continuous feedback through its stretch and recoil properties, automatically adjusting to maintain the baby in the optimal vertical position during movements. The elastic material responds to displacement forces by exerting restoring forces that keep the baby centered in the crossing area
3Ease of operation
If the vertical frontal layer is joined to the T-shirt by gathered seams from the chest area towards the lower end, then the interior seat is formed, but the structure becomes more complex
Solution Approach 1:
The vertical frontal layer is constructed as a flexible fabric component that forms the interior seat through gathering. This flexible fabric approach is simpler than rigid structural alternatives while still providing the necessary seat formation functionality. The gathered seams create a flexible, conforming seat structure
Data Source
Figure 1
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AI summary
A baby carrier T-shirt comprises a front part (12) and a rear part (51) arranged to form the body of the T-shirt (11); wherein the T-shirt comprises a first vertical strap (13) and a second vertical strap (14) arranged along the front part of the T-shirt (12) and joined to the T-shirt (11) from the area of the shoulders towards the lower end of the T-shirt (11); and a frontal vertical layer (15) arranged along the front part (12) and below the first and second strap (12, 13); the frontal vertical layer (15) being joined to the T-shirt by both vertical ends of the area of the chest of the T-shirt (11). The vertical frontal layer is removable by at least one upper end so that a removable joining zone is defined at a first outer edge of the upper portion of the T-shirt and at a second outer edge opposite the first edge, by sewing technique forms an outer edge seam, which can be gathered.