Foldable bassinet and foldable stroller with the foldable bassinet
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Solution Overview
Problem
Foldable strollers with bassinets often inadvertently fold when a child is present, posing a safety risk, as existing designs lack effective mechanisms to prevent folding while a child is in the bassinet.
Innovation Solution
A foldable bassinet with a movable bed part and blocking element that shifts to prevent folding when a child is present, using a biasing element to return to a position allowing folding when the child is removed, ensuring the bassinet remains unfolded until the child's weight overrides the bias, thereby preventing accidental folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the bassinet is made foldable for compact storage and transport, then the bassinet occupies less space and is more manageable, but the bassinet may inadvertently fold when a child is present, creating a safety hazard
Solution Approach 1:
A blocking element is introduced as an intermediary component between the bed and the folding mechanism. This blocking element physically prevents the folding movement part from moving when engaged, thereby preventing inadvertent folding of the bassinet while maintaining the foldable design for compact storage
Solution Approach 2:
The system uses the weight of the child on the bed as feedback to automatically engage or disengage the blocking element. When a child is present, the blocking element is moved to a blocking position that prevents folding; when the child is removed, the blocking element returns to a retracted position allowing folding
2Reliability
If a blocking mechanism is added to prevent inadvertent folding, then safety is improved, but the device complexity increases
Solution Approach 1:
The blocking element is designed to automatically engage and disengage based on the weight applied to the bed, eliminating the need for manual operation or complex control systems. The blocking mechanism serves itself by using the child's weight as the actuating force, thereby adding minimal complexity while ensuring safety
Solution Approach 2:
The blocking element is made movable between a retracted position and a blocking position, allowing the system to dynamically adapt its state based on whether a child is present. This dynamic design enables the blocking mechanism to transition between engaged and disengaged states without requiring complex control systems
3Reliability
If the blocking element is always engaged to prevent folding, then safety is maximized, but the ease of operation for folding when the child is removed is reduced
Solution Approach 1:
The blocking element responds to feedback from the bed's movement or weight changes, automatically disengaging when the child is removed and the bed returns to its initial position. This feedback mechanism ensures safety when needed while automatically restoring full operability when the child is absent
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
The solution effectively prevents inadvertent folding of the bassinet when a child is inside, ensuring safety while allowing for easy folding when the child is removed, maintaining usability and convenience.
Implementation Method 1
the bed comprises a movable bed part and a biasing element. The biasing element is configured to bias the movable bed part to a first position when no child is present on the bed
Implementation Method 2
the bias of the biasing element is overcome by placing a mass of 1 kg or more, preferably 1.5 kg or more, and more preferably 2 kg or more, on the movable bed part, such that the movable bed part moves to its second position when a child equal to or greater than said mass is placed on the movable bed part
Data Source
Figure 1~2
Figure 3A~3E
Figure 4A~4B
AI summary
The present application discloses a foldable bassinet comprising a foldable frame which may be moved between an unfolded condition and a folded condition and a bed on which a child may be placed, wherein the bed comprises a movable bed part (17b) which is configured to move from a first position to a second position when a child is placed on the bed, and wherein the foldable bassinet further comprises a blocking element (17d) which is moved by the movement of the movable bed part (17b) from a retracted position when the movable bed part (17b) is in its first position to a blocking position when the movable bed part (17b) is in its second position, wherein the blocking position is one at which the blocking element (17d) prevents or restricts the movement of a folding movement part (46) of the foldable bassinet, which folding movement part (46) moves either when the foldable frame is moved from its unfolded condition to its folded condition or which first moves to then allow the foldable frame to begin moving from its unfolded condition to its folded condition, such that the foldable frame is prevented from being moved to its folded condition when a child is present on the bed. A foldable stroller including the foldable bassinet is also disclosed.