Rotating Child Seat Front End to Avoid Vehicle Door Interference
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Solution Overview
Problem
Existing child safety seats face challenges in flexible adjustment, particularly when rotating to a sideways facing position, as the support base is often attached near the vehicle door, leading to potential collisions with the door during orientation changes.
Innovation Solution
A child safety seat design featuring a rotatable front end part that can be adjusted between retracted and deployed positions, with a latching mechanism to secure it in place, allowing for flexible orientation changes without interfering with the vehicle door, including a support base with a rotary platform and latching devices to prevent adverse rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the child safety seat is rotated to a sideways facing position for facilitating retrieval or placement of a child, then the ease of operation is improved, but the child seat may adversely collide against the vehicle door
Solution Approach 1:
The child safety seat is divided into a support base and a child seat that can rotate independently relative to each other. The support base remains fixed near the vehicle door while the child seat rotates on a rotary platform, separating the stationary anchoring function from the rotating seating function, thereby preventing collision with the vehicle door during rotation.
Solution Approach 2:
The rotation mechanism introduces an additional degree of freedom by allowing the child seat to rotate relative to the support base. This dimensional change enables the child seat to achieve sideways facing position for easy access while the support base maintains its fixed position away from the vehicle door, avoiding collision.
2Adaptability or versatility
If the child safety seat is designed with rotatable adjustment between rearward and forward facing positions, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The latching mechanism is integrated into the rotary platform structure, combining the rotation control and position locking functions into a single unified mechanism. The latch device works directly with the rotary platform to secure the child seat in desired positions, eliminating the need for separate complex control systems.
Solution Approach 2:
The latching mechanism automatically engages and disengages to secure the child seat in desired positions during rotation. The system self-regulates the rotation movement by providing automatic positional locking without requiring external control systems or complex actuation mechanisms.
Data Source
AI summary
A child safety seat includes a seat shell, a front end part rotatable relative to the seat shell between a retracted and a deployed position, and a latching mechanism for locking the front end part in the deployed position. The seat shell has a front end provided with an opening, and two sidewalls respectively protruding at a left and a right side of a seat portion. The front end part has a transversal portion extending along a width direction of the seat shell, and two side portions respectively connected pivotally with the two sidewalls of the seat shell via two pivot shafts spaced apart from each other along the width direction. The transversal portion of the front end part is stowed inside the opening of the seat shell in the retracted position, and extends outside the opening of the seat shell in the deployed position.