Carry handle anchor system
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Solution Overview
Problem
Existing carry handle systems for child restraints, such as infant excursion seats, lack an efficient and secure mechanism to attach and detach the carry handle, making it difficult for caregivers to comfortably and easily transport the seat without obstructing the handle's rotation or compromising its stability.
Innovation Solution
A carry handle anchor system that employs a PUSHDOWN-PULLBACK-MOUNT-RELEASE-AND-TURN sequence using a spring-biased aperture shape changer to securely attach and detach the carry handle from anchor posts on the infant excursion seat, allowing for easy rotation and comfortable carrying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional fixed anchor mechanism is used, then the carry handle remains stable during carrying, but it is difficult to attach and detach and obstructs rotation
Solution Approach 1:
The aperture shape changer transforms the anchor aperture from a static circular opening to a dynamic shape that changes between circular and elongated configurations. This allows the aperture to adapt its geometry based on operational requirements: circular for secure locking during carrying, and elongated for easy insertion during attachment
Solution Approach 2:
The system changes the geometric parameters of the anchor aperture by transforming it from a circular shape with limited dimensions to an elongated shape with increased length. This parameter transformation enables the aperture to accommodate different functional states: a compact circular form for stability and an extended form for ease of insertion
2Adaptability or versatility
If the anchor aperture remains circular, then the structure is simple, but the handle rotation is obstructed
Solution Approach 1:
The aperture shape changer introduces dynamic adaptability to the anchor mechanism, allowing it to switch between circular and elongated configurations. This dynamic transformation enables the handle to rotate freely when the aperture is elongated while maintaining structural simplicity in each individual state
Solution Approach 2:
The anchor mechanism is segmented into distinct functional components: the base anchor structure and the movable shape changer. This segmentation allows the aperture to independently transform its shape without complicating the overall anchor structure, enabling rotation capability while maintaining relative simplicity
3Reliability
If a secure locking mechanism is used, then the carry handle remains firmly attached, but it is difficult to detach
Solution Approach 1:
The attachment and detachment process follows a periodic cycle: the aperture transforms to an elongated shape for easy insertion and secure locking, then transforms back to a circular shape for firm attachment. Detachment is achieved by reversing this cycle, allowing the handle to be easily removed after secure carrying
4Adaptability or versatility
If the anchor post is fixed in position, then the mounting structure is simple, but the handle cannot be positioned for alternative carrying
Solution Approach 1:
The aperture shape changer enables the anchor to adapt its geometry dynamically, allowing the handle to be positioned in different orientations. The elongated aperture accommodates rotated positions while the circular form provides stable upright carrying, all without requiring multiple mounting positions
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 system provides a secure, efficient, and ergonomic method for caregivers to attach and detach the carry handle, enabling comfortable and hands-free carrying of the infant excursion seat, while allowing the handle to be easily rotated for alternative carrying positions.
Implementation Method 1
a spring-biased aperture shape changer mounted on the foundation for sliding movement to change the shape of the anchor post receiving aperture
Data Source
AI summary
A carry handle includes a shoulder strap and strap anchors at opposite ends of the shoulder strap. Each strap anchor can be mated to one end of an object to be carried to allow a user to wear the carry handle in an over-the-shoulder manner. The carry handle can be coupled to an infant carrier for use by a caregiver during transport of the infant carrier.