Carrycot Handle Release Linkage for Vertical-Position Safety
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Solution Overview
Problem
Existing devices for attaching carrycot seats or carrycots to prams lack safety mechanisms to prevent incorrect release, which can lead to unsafety issues for babies.
Innovation Solution
A device with an action element arranged in an intermediary position on the anchoring mechanism, ensuring the carrycot seat or carrycot can only be released when the handle is in a correct vertical position, utilizing a tiltable cavity housing an arcuate part linked to a pulling rope and a spring-loaded rod mechanism to secure the anchoring mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a control is located on the handle to simultaneously unlock both anchoring mechanisms, then the operation is simplified, but safety is compromised because incorrect releases can occur when the handle is not in the correct position
Solution Approach 1:
An intermediary mechanism (the tiltable cavity with action element) is introduced between the control and the anchoring mechanisms. This intermediary ensures that the control signal can only be transmitted to both anchoring mechanisms simultaneously when the handle is in the correct vertical position, thereby maintaining operational simplicity while ensuring safety through geometric constraint.
Solution Approach 2:
The system changes the spatial parameter (angular position) of the handle as a control condition. The tiltable cavity only allows the action element to reach the rod when the handle is in the correct vertical angular position, using parameter change to enforce safe operation conditions.
2Ease of operation
If the anchoring mechanism allows release by pulling the rope, then ease of operation is improved, but the risk of accidental detachment increases
Solution Approach 1:
The system applies preliminary anti-action by requiring a specific handle position (vertical orientation) before the release action can take effect. The tiltable cavity geometry prevents the action element from reaching the rod unless the handle is correctly positioned, thereby counteracting potential accidental releases before they can occur.
Solution Approach 2:
The handle must first be positioned in the correct vertical orientation before the release mechanism can be activated. This preliminary positioning action ensures that even if the rope is pulled, the anchoring mechanisms will not release unless the handle is in the safe vertical position.
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
Prevents incorrect releases by ensuring the carrycot seat or carrycot can only be safely removed when the handle is in a vertical position, enhancing safety by preventing accidental detachment.
Implementation Method 1
The action element is kept in its passive position by the action of a spring being arranged in the aforementioned cavity and acting on said element's end being pulled by the rope.
Data Source
AI summary
This device includes anchoring mechanism being actuated by a rope and fitted to respective attachments being provided on the pram. The device has two portions namely being a first one (1) being provided at the lower end of the handle and having a cavity (5) in an angularly tiltable arrangement housing an action element (6) being fit to act on the anchoring mechanism (7), and a second portion (2) being solid with the carrycot seat (4) or carrycot and including the anchoring mechanism (7). The action element (6) is made up by an arcuate part one (6′) of whose ends is arranged in a pivoting arrangement at the angular end (5′) of the cavity (5), the arcuate part being at its other end (6″) linked to the pulling rope (8). The action element (6) is fit to act on the bent upper end (9) of a rod (10) pertaining to the anchoring mechanism (7).