Adjustable Shoulder Strap Locking Slide for Child Carrier
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Solution Overview
Problem
Conventional child carrier restraints fail to properly secure children of varying torso lengths due to a fixed connection point for shoulder straps, leading to inadequate restraint and potential ejection from the carrier.
Innovation Solution
The child carrier restraint features adjustable shoulder strap location adjusters with locking slides, allowing the shoulder strap to be positioned over and behind the child's shoulder regardless of torso length, ensuring secure fitting and tightening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional child carrier restraints use a fixed connection point for shoulder straps, then the restraint structure is simple, but children with varying torso lengths cannot be properly secured
Solution Approach 1:
The patent implements dynamic adjustability by allowing the shoulder strap connection point to move vertically along the carrier back. The connection point can be repositioned to different heights to match children of varying torso lengths, transforming a static fixed-point system into a dynamic adjustable one. This resolves the contradiction by enabling adaptability without requiring a completely complex new structure,而是通过简单的可调节机制实现.
Solution Approach 2:
The restraint system is designed to serve multiple children with different torso lengths using the same carrier structure. The shoulder strap connection point can be repositioned to accommodate various sizes, making the restraint system universal across different age groups and torso lengths. This allows one restraint system to fulfill multiple functions for different users.
2Manufacturing precision
If the shoulder strap connection point is fixed at a standard height, then the restraint system is easy to manufacture, but the shoulder strap cannot properly position over children's shoulders with varying torso lengths
Solution Approach 1:
The shoulder strap connection system is segmented into multiple possible connection points along the carrier back. Instead of a single fixed connection point, the system provides multiple discrete positions where the shoulder strap can be connected. This segmentation allows precise positioning for different torso lengths while maintaining relatively simple manufacturing, as each connection point can be a straightforward attachment location.
3Reliability
If conventional restraints use fixed shoulder strap connection points, then the restraint system is simple to operate, but children may slide out of the restraint due to improper strap positioning
Solution Approach 1:
The system provides dynamic adjustability for the shoulder strap connection point, allowing it to be repositioned to ensure proper fit for each child. This dynamic capability enhances reliability by ensuring the strap always connects at the appropriate height, preventing children from sliding out, while maintaining operational simplicity through intuitive adjustment mechanisms.
Data Source
AI summary
A child carrier restraint that allows the upper ends of the shoulder straps to be adjustably positioned to properly secure children having varying torso lengths within the child carrier. The child restraint includes a traditional five point belt harness and pair of shoulder belt location adjusters, which allows the shoulder strap to be selectively positioned over and behind the child regardless of the length of the child's torso. The shoulder location adjusters are mounted to the back of the child carrier and includes a strap loop trained about a locking slide and a bottom strap loop anchor. The end of the shoulder strap is sewn directly to the strap loop. The locking slide can be manually disengaged to allow the strap loop to slide freely, thereby selectively positioning the end of the shoulder strap along the back of the child carrier.