Elastic Clamping Hook Structure to Prevent Seat Crossbar Release
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Solution Overview
Problem
Existing clamping structures in child car seats and carrycots are prone to accidental release during slight collisions or bumps, compromising safety by allowing the seat to separate from the base.
Innovation Solution
A clamping hook structure with a bracket, a pivoting clamping hook, and elastic members that automatically lock or unlock the crossbar, ensuring secure engagement and preventing accidental release, featuring a first elastic member connecting the bracket to the clamping hook and a second elastic member biasing the clamping member to its clamped position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an elastic member structure is arranged on a clamping hook to bias it to locked or unlocked position, then the operation is simplified, but the reliability deteriorates due to accidental release during collisions
Solution Approach 1:
The clamping hook is designed to pivot between locked and unlocked positions dynamically. The hook can automatically transition between states based on the engagement status with the crossbar, allowing it to lock when engaged and unlock when disengaged, providing both ease of operation and reliability
Solution Approach 2:
The elastic member provides feedback through its biasing force, indicating the locked or unlocked state. The hook's position is automatically determined by whether the crossbar is engaged, creating a feedback mechanism that ensures reliable operation without complex controls
2Device complexity
If a simple clamping hook structure is used, then the device complexity is reduced, but the reliability worsens due to accidental release during slight collisions
Solution Approach 1:
The clamping structure is segmented into distinct functional components: the bracket, the pivoting clamping hook with its hook portion and engaging portion, and the elastic member. This segmentation allows each component to perform its specific function reliably while keeping the overall structure relatively simple
Solution Approach 2:
The elastic member acts as an intermediary between the bracket and the clamping hook, providing the necessary biasing force to maintain the hook in the locked position during normal operation and enabling reliable release when needed, thus preventing accidental release during collisions
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 enhanced safety by maintaining the seat securely attached to the base during vehicle movements and collisions, preventing accidental unlocking and ensuring the child's safety by automatically locking the crossbar in place.
Implementation Method 1
a first elastic member, one end of the first elastic member is fixed to the bracket, and the other end of the first elastic member is fixed to the engaging portion, thus being able to be displaced between the locked position and the unlocked position as the clamping hook is pivoted
Data Source
AI summary
A clamping hook structure for assembling and connecting a base to a crossbar, the clamping hook structure includes: a bracket, fixed to base, having two opposite side walls; a clamping hook, pivotally connected to the bracket through a clamping hook pivot set up between the two side walls, so as to be pivoted between a locked position and an unlocked position, the clamping hook has a protruding first hook portion and an engaging portion located between the first hook portion and the clamping hook pivot, when the clamping hook is in the locked position or the unlocked position, the first hook portion fixes or releases the crossbar; and a first elastic member, one end of the first elastic member is fixed to the bracket, and the other end of the first elastic member is fixed to the engaging portion, thus being able to be displaced between the locked position and the unlocked position as the clamping hook is pivoted.