Child Safety Seat Prop Assembly With Deployment Warning Logic
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Solution Overview
Problem
Existing child safety seat assemblies lack effective mechanisms to ensure proper deployment and stability of prop assemblies during vehicle impacts, which can lead to inadequate protection and increased risk of injury.
Innovation Solution
A vehicle-mountable child safety seat assembly with a prop assembly that includes sensors and a warning system to ensure correct deployment, featuring a leg assembly, foot assembly, and visual warning indicators, which activate an audible alarm if the prop assembly is not properly deployed within a predetermined time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a prop assembly is provided to prevent movement or rotation of the child seat assembly during impact, then the stability of the child safety seat assembly is improved, but the complexity of the assembly increases due to additional deployment mechanisms and sensing systems
Solution Approach 1:
The patent implements a feedback mechanism through sensors that detect the deployment state of the prop assembly and provide signals to a control system. The system includes a sensor that detects whether the prop assembly is properly deployed and engaged with the vehicle floor, and a control system that receives this feedback to determine appropriate warning actions.
Solution Approach 2:
The patent introduces an intermediary control system that mediates between the prop assembly deployment mechanism and the warning indicators. This control system processes sensor signals and coordinates the activation of visual and audible warnings, acting as an intermediary layer that manages the complexity of coordinating multiple components.
2Reliability
If sensors and warning systems are added to ensure proper prop assembly deployment, then the reliability of safety function is improved, but the device complexity increases
Solution Approach 1:
The control system receives feedback from sensors that detect the deployment state of the prop assembly. This feedback mechanism enables the system to monitor whether the prop assembly is properly deployed and engaged with the vehicle floor, and to activate appropriate warnings if deployment is incorrect or takes too long.
Solution Approach 2:
The system performs self-verification through automatic sensing of the prop assembly deployment state. The sensor automatically detects whether the prop assembly is properly deployed, and the control system automatically determines and activates the appropriate warning response without requiring manual inspection or intervention.
3Ease of operation
If a timing mechanism is implemented to allow grace period for deployment, then the ease of operation is improved, but the reliability of safety function may be compromised if deployment is delayed
Solution Approach 1:
The control system implements periodic monitoring of the prop assembly deployment state through a timing mechanism. The system activates a warning if the prop assembly is not properly deployed within a predetermined time period, creating a periodic check that balances user convenience with safety requirements.
Solution Approach 2:
The sensor continuously monitors the deployment state of the prop assembly, and the control system continuously evaluates whether the deployment time exceeds the predetermined threshold. This continuous monitoring ensures that the system can reliably detect improper deployment while providing adequate time for correct installation.
Data Source
AI summary
A vehicle-mountable child safety seat assembly is disclosed. The seat assembly includes a safety seat and a prop assembly mounted with respect to the safety seat. The prop assembly has a stowed position and a safely deployed position. The prop assembly includes: a leg assembly; a foot assembly mounted to the leg assembly; and a first sensor, for example a tilt sensor, for sensing when the prop assembly is not in the stowed position. A second sensor for sensing when the prop assembly is not in the safely deployed position is also provided. A warning system is also disclosed. The warning system changes from a timing state to the warning state if the second sensor senses that the prop assembly is not in its safely deployed position by a pre-determined time after the change from a standby state to a timing state.