Child Vehicle Seat Hook Recess Mechanism
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Solution Overview
Problem
Existing child vehicle seats face issues where the pin can disengage from the recess during vehicle movement, causing the seat portion to move undesirably relative to the chassis, such as when driving over bumps.
Innovation Solution
A hook-shaped element is used within the recess, which must be disconnected from one recess before moving to another, providing stable engagement and guidance through a slidable pin within a chassis slot, ensuring the seat portion remains securely positioned.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pin is used to connect the seat portion to the chassis, then the seat portion can be moved between positions, but the pin may disengage during vehicle movement causing undesirable movement
Solution Approach 1:
The connection system is divided into two independent functional elements: a pin for guidance and movement, and a separate hook-shaped element for secure engagement. This segmentation allows each element to perform its specific function optimally - the pin enables smooth movement while the hook provides reliable positioning without interfering with each other's operation.
Solution Approach 2:
The hook-shaped element acts as an intermediary between the pin and the recesses. It provides an additional engagement mechanism that works in conjunction with the pin, mediating the connection between the seat portion and chassis to prevent disengagement while maintaining ease of movement.
2Adaptability or versatility
If the element is moved out of the recess to change positions, then position changing is enabled, but the element may accidentally disengage during use
Solution Approach 1:
The system transitions from a static connection to a dynamic one where the hook-shaped element can move within the recess. During normal use, gravity keeps the hook engaged, but when position change is needed, the hook can be easily moved to disengage and re-engage with different recesses, providing both stability and adaptability.
Solution Approach 2:
The position of the hook-shaped element within the recess changes based on operational needs. During normal use, the hook maintains a stable engaged position, but when position changing is required, the element's position parameter changes to allow disengagement and re-engagement with different recesses.
3Reliability
If a hook-shaped element is used within the recess, then stable engagement is achieved, but the element must be moved within the recess to disconnect
Solution Approach 1:
The hook-shaped element is extracted as a separate component from the recess, allowing independent movement and manipulation. This extraction enables the hook to be easily moved within the recess for disengagement without requiring complex mechanisms or forceful actions, simplifying the overall disconnection process.
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
This solution prevents undesirable movement of the seat portion and provides adequate guidance for changing positions, ensuring the seat remains firmly connected to the chassis, even under the influence of gravity, and maintains backrest support.
Implementation Method 1
the pin which is slidably accommodated in a slot formed in the chassis or vice versa
Implementation Method 2
the element is held in the position in which it is connected to the recess also under the influence of, among other things, the force of gravity
Data Source
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AI summary
A child vehicle seat comprises a seat portion supported by a chassis, a backrest connected to said seat portion as well as means for placing the seat in at least two positions relative to the chassis. Said means comprise at least two recesses (11,15) as well as at least one element (14) to be connected to said recesses. The element can be moved from a position in the recess to a position outside the recess, from which latter position the element can be moved to another recess, and vice versa. The element can be moved within said recess from a position in which it is connected to said recess to a position in said recess in which it is disconnected from said recess.