Infant Car Seat Carrying Strap With Four-Point Load Distribution
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Solution Overview
Problem
Existing infant car seat carrying straps are uncomfortable and require excessive strength, leading to fatigue and risk of the infant being dropped due to top-heavy weight distribution and awkward hand positioning.
Innovation Solution
A four-strap carrying strap device with a central pad and finger screw clasps that attach securely to the car seat, distributing weight evenly and allowing for comfortable handling with reduced arm strain, featuring strap adjusters for customizable length and hook and loop fasteners for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single handle is used on the car seat, then the device complexity is reduced, but the ease of operation deteriorates due to awkward hand positioning and top-heavy weight distribution
Solution Approach 1:
The carrying strap system is divided into four separate straps instead of a single handle, with each strap attaching to a different corner of the car seat. This segmentation distributes the weight across multiple attachment points, improving ease of carrying by reducing awkward hand positioning and eliminating top-heavy weight distribution.
Solution Approach 2:
The four separate straps are merged at a central gathering point where they connect to a comfort pad. This merging allows all straps to be held together in one location, providing a secure grip while maintaining the weight distribution benefits of multiple attachment points.
2Ease of operation
If four straps are used to distribute weight evenly, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The four straps are merged at a central gathering point with a comfort pad, allowing them to function as a unified carrying system while maintaining even weight distribution. This merging reduces the complexity of handling four separate straps by providing a single location to grasp all straps simultaneously.
Solution Approach 2:
The comfort pad serves as an intermediary element between the four straps and the user's hand. It provides a comfortable surface for contact while gathering and securing the straps together, simplifying the interface between the multi-strap system and the user.
3Reliability
If the handle is positioned at the top of the car seat, then the device complexity is minimized, but the reliability deteriorates due to risk of dropping the infant
Solution Approach 1:
The attachment system is segmented into four separate attachment points at the corners of the car seat rather than a single top-mounted handle. This segmentation lowers the effective carrying position and distributes the load, improving reliability by preventing top-heavy instability that could lead to dropping the infant.
Solution Approach 2:
The attachment points are distributed across the horizontal plane at the corners of the car seat rather than concentrated at the top vertical position. This dimensional redistribution creates a more stable base of support, improving reliability by lowering the center of gravity and preventing top-heavy weight distribution.
4Ease of operation
If standard car seat handles are used, then the ease of manufacture is maximized, but the ease of operation deteriorates due to pain and fatigue
Solution Approach 1:
The comfort pad serves as an intermediary between the straps and the user's hand, providing a comfortable surface that reduces pain and fatigue. While this adds a component, it is a simple padded element that can be easily manufactured and attached to the strap gathering point.
Solution Approach 2:
The strap system includes adjustable length capabilities, allowing the straps to be customized for different user preferences and car seat configurations. This adjustability improves user comfort while maintaining relatively simple manufacturing through the use of adjustable fasteners or sliding mechanisms.
Data Source
AI summary
A carrying strap device is disclosed that provides an improved carrying strap system for infant car seats. The carrying strap device comprises a body component of four straps that are configured in a rectangular shape and connect with the top right, bottom right, top left, and bottom left of the infant car seat through a securing means such as finger screw down clamps and anchors. The body component would be made of a polyester material which contains a strap adjuster for length adjustment. The body component also comprises a pad component which connects all four straps of the body component together with hook and loop fasteners. Thus, each carrying strap device functions as a suitable way of carrying an infant in a car seat while also maintaining comfort and ease, greatly increasing the safety of the infant.