Adjustable Child Restraint Frame for Variable Public Seating
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Solution Overview
Problem
Existing child restraint systems in public seating, such as high chairs and shopping carts, often fail to accommodate children of varying sizes, leading to excessive movement that restricts adult freedom in public settings.
Innovation Solution
A portable child restraining apparatus with an adjustable frame and straps that can be attached to pre-fabricated seats, allowing for customization to fit the height and weight of the child, thereby minimizing movement and enhancing adult mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a prefabricated seat is used to accommodate children of various sizes, then the seat can be universally applied to different children, but the child can move with minimal restriction which inhibits adult freedom
Solution Approach 1:
The restraint system incorporates adjustable components including an adjustable backrest with multiple positioning holes, adjustable shoulder straps with extenders, and a five-point harness system that can be configured to fit children of various sizes. This dynamic adjustability maintains adult freedom while ensuring proper child restraint.
Solution Approach 2:
The system allows changing of critical parameters such as backrest angle (via adjustable positioning holes), strap length (via extenders and buckles), and harness tightness to accommodate different child sizes and maintain both safety and adult mobility.
2Ease of operation
If the restraint system is adjusted to fit the child's height and weight, then the child movement is minimized, but the device complexity increases
Solution Approach 1:
The restraint system uses universal adjustment mechanisms such as standardized buckles, multiple-position buckles, and extenders that can accommodate a wide range of child sizes without requiring complex specialized components for each size category.
Solution Approach 2:
The system employs self-adjusting features including self-buckling mechanisms and self-extending straps that allow for easy size adjustment without requiring complex tools or procedures, maintaining simplicity while achieving proper fit.
Data Source
AI summary
A restraining apparatus for a child consists of a frame with a back; the back of the frame has parallel back rods which can be adjusted lengthwise and a bottom foldably attached to the back by lockable hinges. The back and the bottom each have a foundation rod further comprising a stop. The apparatus also has a cover for the frame. The cover has an upper portion containing a plurality of slots, and a plurality of straps which fit removably through the slots to adjust to the height of the child to be restrained.