Highchair Conversion Locking Mechanism to Prevent Tipping Injury
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing multifunctional children's chairs that convert into swings pose a risk of injury to children during conversion due to the potential for tipping.
Innovation Solution
An adjustment mechanism that requires the child to be removed from the seat before conversion can occur, utilizing a lever system with a grip element and a fastening element to securely lock the arched support elements into position, ensuring safety by preventing unintended movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex gear system is used to convert the highchair into a swing, then the conversion can be performed at any time and in any situation, but the child can tip out during conversion and is exposed to injury risk
Solution Approach 1:
The patent requires the child to be removed from the seat before conversion can occur. The handle element is positioned such that it must be pulled through an opening in the seat, which automatically ensures the seat is empty. This preliminary action of removing the child eliminates the injury risk during conversion while maintaining the adaptability of the system.
Solution Approach 2:
The opening in the seat acts as an intermediary mechanism that mediates between the child's presence and the conversion operation. The handle element serves as a mediator that can only be actuated when the child is absent, creating a safety barrier without compromising the conversion functionality.
2Ease of manufacture
If a lever system with handle element is used for adjustment, then the mechanism is easy to manufacture and robust, but the child must be removed from the seat before adjustment can occur
Solution Approach 1:
The system performs its own safety check automatically. The handle element's positioning relative to the seat opening ensures that the seat must be empty before conversion can be initiated. This self-service mechanism eliminates the need for separate safety checks or complex control systems, maintaining ease of manufacture while ensuring safety.
3Reliability
If the support elements are locked with a fastening element, then they reliably assume and maintain their position, but the conversion mechanism becomes more complex
Solution Approach 1:
The fastening element is merged with the lever system and handle element. The same lever that drives the conversion also actuates the fastening element to lock or unlock the support elements. This merging of functions maintains position stability while avoiding the addition of separate complex locking mechanisms.
Solution Approach 2:
The lever system serves multiple functions: it drives the conversion of support elements between highchair and swing positions, and simultaneously actuates the fastening element to lock or unlock the support elements. This multi-functionality reduces overall mechanism complexity while ensuring reliable positioning.
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 mechanism ensures the child's safety by preventing accidental tipping during conversion, as the arched support elements can only be adjusted when the child is absent from the seat, and once adjusted, they are securely locked in place, enhancing safety and stability.
Implementation Method 1
The adjustment mechanism includes a lever system which can be actuated by a handle element
Implementation Method 2
The support elements attached to one side of the child's chair or child's swing can be locked by a fastening element
Data Source
Figure 1
Figure 2~3
Figure 4a~4c
AI summary
The invention relates to an adjustment mechanism for adjusting two pairs of two arched support elements (5) from a high chair (1) to a children's swing (13) and vice versa, the arched support elements (5) serving as legs in the high chair (1). while these can be used as rocking elements in the children's swing (13). To ensure the safety of the child when converting the highchair into a children's swing, the adjustment can only be made when the child is absent.