Child Safety Seat Base Belt Clamp to Prevent Shoulder Belt Interference
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Solution Overview
Problem
Current child safety seats face interference issues when using vehicle safety belts for attachment, as the shoulder belt portion can stretch freely across the support base, causing undesirable interference with the child seat.
Innovation Solution
A support base design featuring a shell with a belt anchoring region and a belt clamp system that includes a shoulder clamp and lap clamp, capable of securely clamping both the lap and shoulder belt portions of the vehicle safety belt, preventing interference with the child seat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle safety belt is wrapped transversally across the support base and anchored with a clamping device at a central position, then the support base can be securely attached to the vehicle seat, but the shoulder belt portion may stretch relatively freely across the support base, resulting in undesirable interference with the child seat
Solution Approach 1:
The belt clamp is divided into separate clamping portions for the lap belt and shoulder belt, allowing independent positioning and control of each belt portion. This segmentation enables the shoulder belt to be clamped separately from the lap belt, preventing it from stretching freely across the support base and interfering with the child seat, while maintaining secure attachment through the lap belt clamping portion.
2Reliability
If a belt clamp system is used to secure the vehicle safety belt, then attachment reliability is improved, but the device complexity increases due to the need for pivotally connected clamps and latching mechanisms
Solution Approach 1:
The belt clamp system combines multiple functions into integrated components: the pivotally connected belt clamp serves both as a clamping device and a positioning mechanism, while the latching mechanism integrates locking and releasing functions. This merging reduces the number of separate parts needed compared to using entirely separate components for each function, thereby reducing overall device complexity while maintaining attachment reliability.
Data Source
AI summary
A support base for a child safety seat includes a shell, a belt clamp and a latching mechanism. The shell is adapted to receive a child seat thereon, and has a belt anchoring region including a first surface and a second surface. The belt clamp is pivotally connected with the shell, and is operable to clamp a first belt portion and a second belt portion respectively adjacent to the first surface and the second surface. The latching mechanism is operable to lock the belt clamp in a clamping state.