Child Bike Seat Multi-Layer Structure for Comfort and Support
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Solution Overview
Problem
Existing bicycle child seats are often uncomfortable for children due to their rigid or soft material construction, which fails to provide adequate support and comfort during rides.
Innovation Solution
A child bike seat with a multi-layer structure comprising a first layer made from a stiff thermoplastic material and a second layer of expanded polypropylene foam, where the layers are coupled through a positive-fit connection and a clamping mechanism for secure attachment to a bike rack, with a pressing member for enhanced stability and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the seat body is made from rigid plastics material to support the child, then the structural strength is improved, but the comfort for the child deteriorates
Solution Approach 1:
The seat body is constructed as a multi-layer composite structure combining a rigid outer shell (first layer) made from thermoplastic material for structural strength, and a soft inner layer (second layer) made from expanded polypropylene foam for comfort. This composite construction allows both rigid support and soft comfort contact surfaces to coexist in the same seat body.
2Ease of operation
If the seat body is made from soft material to comfort the child, then the child comfort is improved, but the structural support deteriorates
Solution Approach 1:
The multi-layer composite structure assigns different functional roles to each layer: the outer rigid shell provides structural support and load-bearing capacity, while the inner soft foam layer provides comfort and cushioning. This division of functions within the composite structure resolves the contradiction between needing softness for comfort and rigidity for support.
3Ease of operation
If a multi-layer structure is used to improve comfort and support, then the child comfort is improved, but the device complexity increases
Solution Approach 1:
The seat body is segmented into multiple functional layers, each with specific properties: an outer rigid shell layer for structural integrity and an inner soft foam layer for comfort. This segmentation allows each layer to be optimized independently for its specific function while working together as an integrated unit.
Data Source
AI summary
A bicycle child seat includes a seat body for accommodating a child therein and a fixation adapted to couple the bicycle child seat to a bike. The seat body includes a multi-layer structure with at least a first layer and a second layer made from different materials. The first layer is adapted to at least partially cover the second layer and to at least partially support the second layer.