Elastic Fastener for Infant Motion Sensor Attachment
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Solution Overview
Problem
Infant care providers face challenges with body motion sensors detaching during infant movement, leading to unnecessary alerts and increased workload due to displacement issues.
Innovation Solution
A fastener with an elastic adjuster unit and a cover unit that can latch and cover the main unit, allowing for secure attachment to clothing and reducing displacement, while also integrating a body motion sensor for monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a body motion sensor is attached to an infant using a conventional fastener, then the sensor can detect abnormalities, but the sensor may detach or displace during infant movement, leading to false alerts
Solution Approach 1:
The fastener incorporates an elastic adjuster unit that can dynamically adapt its length and tension to maintain secure attachment. The adjuster unit includes an elastic body that can be stretched and contracted, allowing the fastener to accommodate infant movement while maintaining attachment reliability.
Solution Approach 2:
The fastener uses a cover unit that covers the main unit, with the elastic adjuster unit extending from the main unit. The adjuster unit can be inserted into or extended from the main unit, creating a nested structure that provides both security and adaptability.
2Reliability
If the cover unit is fully latched with the main unit, then attachment security is improved, but the body motion sensor cannot be properly attached or accessed
Solution Approach 1:
The cover unit is designed to cover only a portion of the main unit, specifically covering the latching mechanism while leaving the sensor attachment area exposed or accessible. This partial covering approach allows the fastener to maintain security while accommodating the sensor.
Solution Approach 2:
The fastener is divided into distinct functional units: the main unit for sensor attachment, the cover unit for latching protection, and the elastic adjuster unit for securing. This segmentation allows each unit to perform its specific function without interfering with others.
3Manufacturing precision
If the adjuster unit is rigid, then positioning precision is improved, but the fastener cannot accommodate variations in clothing thickness or infant movement
Solution Approach 1:
The elastic adjuster unit changes its physical parameters (length, tension, flexibility) in response to external conditions such as clothing thickness and infant movement. The elastic body can be stretched to increase length or relaxed to reduce tension, adapting to varying conditions while maintaining secure attachment.
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
Facilitates secure attachment of body motion sensors, suppresses detachment, and effectively monitors infant conditions without increasing the workload of caregivers.
Implementation Method 1
an adjuster unit which extends from the main unit and which is capable of being elastically inflected; and a cover unit coupled to the main unit through the adjuster unit, in which the cover unit is configured to be, by elastic flection of the adjuster unit, both in a state apart from the main unit and in a state latched with the main unit
Data Source
AI summary
A fastener according to the present disclosure includes a main unit, an adjuster unit which extends from the main unit and which is capable of being elastically inflected, and a cover unit coupled to the main unit through the adjuster unit. The cover unit is configured to be, by elastic flection of the adjuster unit, both in a state apart from the main unit and in a state latched with the main unit so as to cover the main unit, and with the cover unit being in the state latched with the main unit, a side surface of the main unit and a surface of the adjuster unit are apart from each other, the surface of the adjuster unit facing the side surface.