Child Seat Side Impact Block Self-Locking Against Accidental Folding
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Solution Overview
Problem
Existing child safety seats with side impact protection mechanisms can accidentally fold back into the backrest during a side impact, compromising their protective function after initial use.
Innovation Solution
A self-locking structure is integrated into the side impact protection mechanism, which prevents the side impact protection block from folding back into the backrest once it has been unfolded for the first time, using a combination of a telescopically slidable self-locking member and an elastic reset member to block any attempt to revert to the folding position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a releasable lock block is used to lock the side impact protection block in the unfolding position, then the side impact protection block can be flexibly unfolded, but the side impact protection block may accidentally fold during side impact due to accidental operation of the lock block
Solution Approach 1:
The self-locking structure automatically locks the side impact protection block in the unfolding position without requiring manual operation. The lock block is automatically engaged when the protection block is unfolded, eliminating the need for users to manually operate a release mechanism and preventing accidental folding during side impact.
Solution Approach 2:
The self-locking structure is designed to prevent the harmful action of accidental folding before it can occur. By automatically locking the protection block in the unfolding position, the system counteracts the potential harmful effect of accidental operation during side impact.
2Volume of moving object
If the side impact protection block is designed to be movable and foldable relative to the backrest, then the structure can be compact when not in use, but the block cannot maintain stable protection after first use
Solution Approach 1:
The side impact protection block is designed with dynamic characteristics, allowing it to be movable and foldable during initial deployment but becoming fixed and stable after the first use. The self-locking structure enables this transition from a dynamic, reconfigurable state to a static, locked state, providing both compactness when not in use and reliability after first deployment.
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
Ensures the side impact protection block remains in the unfolded position after initial use, preventing accidental folding and maintaining the side impact protection effect.
Implementation Method 1
a self-locking reset member providing a reset force for a telescopically slidable movement of the self-locking member, the self-locking reset member has a constant tendency to drive the self-locking member to slide in a extending direction
Data Source
AI summary
The present disclosure discloses an apparatus comprising: a backrest; a side impact protection block movably fitted to the backrest between a folding position and an unfolding position; and a self-locking structure fitted to the side impact protection block or the backrest, the self-locking structure being configured to block the side impact protection block in the unfolding position from switching to the folding position. The self-locking structure comprises a self-locking member and a self-locking reset member, the self-locking member being fitted to the backrest or the side impact protection block, the self-locking reset member being configured to apply a force to the self-locking member to drive it into an extended position that blocks the side impact protection block in the unfolding position from switching to the folding position.