Child-accommodation device
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Solution Overview
Problem
Existing child-accommodation devices, such as child seats for vehicles and prams, have locking mechanisms that are error-prone and difficult to use safely, leading to concerns about ease of operation and safety.
Innovation Solution
A child-accommodation device with a locking mechanism that includes a first and second part that can be adjusted relative to each other using a locking device and an adjustment device, where the locking device transitions between a locked and release position through a rail control section interaction, preventing unwanted malfunctions and enhancing reliability and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional locking mechanism with guide slots and latches is used, then the headrest can be locked at different positions, but the mechanism is error-prone and difficult to use safely
Solution Approach 1:
The locking mechanism is divided into separate functional components: an adjustment device with control sections for initiating movement, and a locking device with control sections for executing the locking/unlocking action. This segmentation allows each component to be optimized independently, improving both reliability and ease of operation.
Solution Approach 2:
The patent introduces control sections as intermediary elements that mediate between the adjustment device and locking device. These control sections interact through defined geometric relationships (inclined planes, guide slots) to transmit motion and force, enabling safe and reliable locking without requiring the user to directly manipulate complex mechanical components.
2Reliability
If a locking mechanism with multiple control sections is used to improve safety, then the locking becomes more reliable, but the device complexity increases
Solution Approach 1:
The patent merges the adjustment function and locking function into a single integrated mechanism. The adjustment device and locking device share common components (control sections, guide slots, inclined planes) that perform dual functions: enabling position adjustment while simultaneously providing secure locking. This reduces overall complexity compared to having separate adjustment and locking systems.
Solution Approach 2:
The control sections serve multiple functions: they guide the movement of the adjustment device, transmit force to the locking device, and define the locking/unlocking positions through their geometric configuration. This multi-functionality reduces the number of separate components needed, thereby reducing complexity while maintaining safety.
Data Source
AI summary
A child-accommodation device, in particular a child seat for mounting on a motor vehicle seat, pram or child-accommodation device for such a seat, and/or high chair, comprising a first part as well as a second part which is movable relative to the first part for adjusting the child-accommodation device and can be locked relative to the first part by a locking device of the child-accommodation device, and an adjustment device which can be transferred from a first adjustment device position to a second adjustment device position for transferring the locking device from a first locking device position to a second locking device position. One of the first and second locking device positions is a release position in which the first and second parts are not locked against each other, and the other of the first and second locking device positions is a locking position in which the first and second parts are locked against each other. The adjustment device comprises at least one first control section and the locking device comprises at least one second control section, wherein the first and second control sections interact with each other in such a way that they cause a transfer of the locking device from the first to the second locking device position when the adjustment device is transferred from the first to the second adjustment device position.