Activity Center Elastic Surface Design to Prevent Child Rollover
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Solution Overview
Problem
Existing activity centers for children are unstable and prone to shaking, posing a risk of harm due to the instability of the standing plate when children step on it.
Innovation Solution
The activity center structure includes an activity center frame, a support bottom frame, a support leg, and an elastic surface with a panel frame and elastic plate, where the elastic surface is mounted at a hollow position corresponding to the seat pocket, allowing only up and down deformation, thus enhancing stability and safety by reducing the likelihood of side rollover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a connecting belt is used to connect the standing plate to the table frame, then the structure is simple and easy to manufacture, but the standing plate becomes unstable and prone to shaking when the child steps on it
Solution Approach 1:
The patent divides the support system into multiple independent support legs instead of using a single connecting belt. Each support leg independently supports the standing plate, distributing the load and preventing unstable shaking movements. This segmentation transforms the single-point connection into a multi-point support system, significantly improving stability while maintaining manufacturing simplicity.
Solution Approach 2:
The patent transitions from a two-dimensional plane connection (connecting belt in a single plane) to a three-dimensional spatial support structure (multiple support legs extending in different directions). By adding vertical and lateral dimensions to the support system, the standing plate gains enhanced stability against shaking and rolling movements while the child steps on it.
2Ease of operation
If the standing plate is made flexible to allow child movement, then the child can move freely, but the structure becomes unstable and may cause side rollover
Solution Approach 1:
The patent applies different structural qualities to different parts of the standing plate system. The support legs are designed with rigid structures to provide stable support, while the top surface maintains appropriate flexibility for child comfort. This local differentiation allows the structure to be stable overall while still permitting controlled child movement without side rollover.
Solution Approach 2:
The patent employs composite construction combining rigid support legs with a standing plate surface that has controlled flexibility. This composite structure integrates the stability of rigid materials with the comfort of flexible materials, enabling the child to move freely while preventing dangerous side rollover through the underlying rigid support framework.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a stable and safe activity center structure that limits the elastic surface's deformation to the up and down direction, preventing side rollover and ensuring the child's safety during use.
Implementation Method 1
an elastic surface having elasticity... allow the child placed in the seat pocket to step on the elastic surface
Implementation Method 2
A bottom of the frame bottom plate is connected to rollers. The rollers reduce friction with the ground and facilitate a movement of the activity center structure.
Data Source
AI summary
The present disclosure discloses an activity center structure for a child. The structure includes an activity center frame, a support bottom frame, a support leg, and an elastic surface having elasticity. The activity center frame is located above the support bottom frame, and provided with a seat pocket for placing the child at a middle part of the activity center frame. The support leg is connected between the activity center frame and the support bottom frame. The support bottom frame has a mounting position where the support bottom frame is hollow. The mounting position at least corresponds to a position where the seat pocket is located. The elastic surface is mounted at the mounting position to allow the child placed in the seat pocket to step on the elastic surface. In this way, the activity center structure has better safety performance.