Rotatable Leg Anti-Tip Device for Booster Seat Chair Stability
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Solution Overview
Problem
Current booster seats for young children increase the risk of backwards tipping injuries due to a higher center of gravity, with existing safety measures failing to prevent falls effectively, particularly since the child's head and neck are positioned above the chair backrest, leaving them vulnerable to life-threatening back head injuries.
Innovation Solution
A removable and portable anti-tip device for chairs, comprising a bar with a rotatable leg and adjustable fasteners, which can be securely attached to standard dining or bar height chairs, featuring a stabilizer T-bar with non-slip material and optional suction cup for enhanced stability and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a booster seat is used to raise the child to an appropriate height, then the child can sit at the table comfortably, but the center of gravity increases and the risk of backwards tipping injuries increases
Solution Approach 1:
The patent introduces an intermediary anti-tip device that acts as a mediator between the chair and the table. This device includes a stabilizer bar with suction cups that attach to the table surface and a counterweight mechanism that applies downward force to prevent the chair from tipping backward, thereby resolving the stability issue while maintaining the booster seat's height-raising function
Solution Approach 2:
The patent employs a counterweight mechanism consisting of a weight attached to a linkage system that applies a downward counterbalancing force on the chair. This counterweight compensates for the elevated center of gravity caused by the booster seat, preventing backward tipping while allowing the child to sit comfortably at table height
2Device complexity
If the chair back rest is kept at typical adult height, then the chair design remains simple and comfortable for adults, but the child's head and neck are positioned above the back rest leaving them vulnerable to head injuries
Solution Approach 1:
The patent applies preliminary anti-action by positioning the stabilizer bar and suction cup system to prevent backward tipping before it can occur. The device proactively counteracts the tipping force generated when a child pushes against the table or shifts position, eliminating the need to modify chair back rest height while preventing head injuries
3Reliability
If a removable anti-tip device is installed on the chair, then chair stability is improved, but the device may create tripping hazards when not in use
Solution Approach 1:
The patent implements dynamics by designing the anti-tip device with movable components that can transition between operational and storage positions. The stabilizer bar can be adjusted or folded, and the suction cups can be detached or repositioned, allowing the device to adapt its configuration to eliminate tripping hazards when the chair is not in use while maintaining stability when needed
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 anti-tip device effectively prevents chair tipping by adjusting to various chair styles and positions, ensuring the child's safety by maintaining stability even when the child applies force, while being easily installable and storable, thus reducing tripping hazards and providing peace of mind for parents.
Implementation Method 1
optional suction cup for enhanced stability and safety
Implementation Method 2
a bar having a first end, a second end and a middle portion between the first end and the second end, a connector, and a first leg having a bar end and a floor end, the first leg rotatably affixed to the bar by the connector
Data Source
AI summary
A chair anti-tip device comprising a frame having horizontal bars in vertical spaced apart relationship with a vertical post, and a pair of spaced apart L shaped legs rotatably connected to the frame. The chair anti-tip device is removably attached to one or more of a back, legs and stretcher of a chair by one or more removable and length adjustable straps attached to the frame and positioned around the chair. Once installed on the chair, the anti-tip device has a storage position, where the legs are rotated so as to be approximately parallel with the bars, and a use position, where the legs are rotated away from the bars to a maximum rotation of 90 degrees so as to be perpendicular with the bars. An optional suction cup and strap of the anti-tip device secures to a front stretcher of the chair for additional anti-tip properties.