Ceiling-Mounted Child Seat Holding Structure
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Solution Overview
Problem
Child seats in passenger motor vehicles, such as buses, cannot be securely stored near the ceiling without the risk of falling due to vibrations, and require easy attachment and detachment by passengers, especially in autonomous buses without staff.
Innovation Solution
A child seat temporary holding structure with a connection member that protrudes from the vehicle's top wall, allowing easy attachment and detachment of ISOFIX type child seats, and optionally includes a cushion member to reduce vibration-induced shaking and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a rack is set in the vicinity of the ceiling above the seat to store the child seat, then the child seat can be stored in the vicinity of the ceiling, but the child seat may fall from the rack due to vibrations when the bus is moving
Solution Approach 1:
The connection member is divided into multiple engagement portions that can independently engage with corresponding portions on the child seat. This segmentation allows the connection to be distributed across multiple points, enhancing stability and preventing the child seat from falling during vehicle vibrations.
Solution Approach 2:
The connection member is designed with specific local features including engagement portions with predetermined shapes that match corresponding features on the child seat. These localized engagement features create reliable connection points that resist vibration-induced disconnection while maintaining overall storage space efficiency.
2Volume of moving object
If the child seat is stored on the rack set in the vicinity of the ceiling, then storage space is utilized, but it becomes difficult for ordinary passengers to attach and detach the child seat
Solution Approach 1:
Instead of requiring passengers to reach upward to the ceiling-level rack, the connection member is designed to engage with the child seat from below or from accessible directions. This inverted approach to connection geometry allows ordinary passengers to easily attach and detach child seats without needing to access high ceiling areas directly.
Solution Approach 2:
The connection member serves as an intermediary mechanism that bridges the child seat and the storage structure. By positioning the engagement portions on accessible parts of the storage structure rather than directly on the ceiling, it mediates between the storage requirement and the ease of operation requirement, allowing simple attachment/detachment while maintaining ceiling-proximity storage.
3Reliability
If the connection member protrudes from the top wall to enable ceiling storage, then the child seat can be securely stored, but the structure becomes more complex
Solution Approach 1:
The connection member is designed to serve multiple functions: it provides secure engagement with the child seat, maintains structural integrity during vibrations, and integrates with the existing storage structure. By making the connection member multi-functional rather than adding separate components for each function, the overall structural complexity is minimized while achieving reliable child seat security.
Solution Approach 2:
The connection member is integrated with the storage structure rather than being a separate附加 component. The engagement portions are incorporated into the design of the storage structure itself, merging the storage function and the connection function into a unified structure, thereby reducing overall device complexity while maintaining security.
Data Source
AI summary
A child seat temporary holding structure in a passenger motor vehicle having a connection member to which a connector provided on an ISOFIX type child seat is to be detachably connected, the connection member protruding from a top wall located on the upper side of the vehicle body relative to a seat in the cabin of the passenger motor vehicle.