Five-Point Harness Plate With Retracting Straps and Single-Action Release

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Solution Overview

Problem

Current car seat harness systems are cumbersome and prone to loosening or twisting, leading to human error and neglect in securing children, as they require multiple actions and can be uncomfortable.

Innovation Solution

A single-piece, five-point chest harness system with a retracting mechanism that allows for single-action release and securing, using a harness plate, actuator, and lever arm to simplify the strapping process and prevent loosening or twisting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple straps and buckles are used to secure a child in a car seat, then the harness system provides comprehensive restraint coverage, but the system becomes complex and requires multiple actions to secure and adjust

Engineering Contradiction:
Improveharness securityVSAvoidharness system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple separate straps and buckles into a single integrated chest harness plate that provides five-point restraint. The harness plate integrates the functionality of multiple individual straps into one unified component that secures at five different points on the child's body, eliminating the need for separate adjustment of multiple buckles while maintaining comprehensive restraint coverage.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The chest harness plate serves multiple functions simultaneously: it provides five-point restraint, acts as a single release mechanism, and functions as both the securing and adjusting component. This multi-functional design eliminates the need for separate straps, buckles, and adjustment mechanisms, reducing system complexity while maintaining security.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple straps and buckles are used in the harness system, then comprehensive restraint is achieved, but the time required to secure and adjust the harness increases

Engineering Contradiction:
Improveharness securityVSAvoidharness securing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent combines multiple separate straps and buckles into a single integrated chest harness plate that provides five-point restraint. The harness plate integrates the functionality of multiple individual straps into one unified component that secures at five different points on the child's body, eliminating the need for separate adjustment of multiple buckles while maintaining comprehensive restraint coverage.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The harness plate is pre-configured with five attachment points and integrated restraint mechanisms that are ready for immediate engagement. The single-action release mechanism is pre-set to simultaneously disengage all five restraint points, eliminating the sequential adjustment time required for multiple separate buckles.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If traditional straps and buckles are used, then the harness can be adjusted to fit different sizes, but the straps may loosen or twist over time

Engineering Contradiction:
Improveharness size adjustmentVSAvoidharness stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The chest harness plate incorporates a retracting system with a lever arm and actuator that enables dynamic adjustment. The lever arm can be moved between retracted and extended positions to accommodate different child sizes and ages, while the retracting mechanism maintains constant tension to prevent loosening or twisting over time.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The actuator mechanism provides feedback through the lever arm position to maintain optimal harness tension. As the child grows or moves, the system can be adjusted by moving the lever arm, and the mechanical connection ensures the harness maintains proper tension and positioning, preventing loosening or twisting.

Inventive Principle:
Principle #23Feedback

4Adaptability or versatility

If multiple separate components are used in the harness system, then adjustability is improved, but the risk of human error and neglect increases

Engineering Contradiction:
Improveharness adjustabilityVSAvoidharness security reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent combines multiple separate straps and buckles into a single integrated chest harness plate that provides five-point restraint. The harness plate integrates the functionality of multiple individual straps into one unified component that secures at five different points on the child's body, eliminating the need for separate adjustment of multiple buckles while maintaining comprehensive restraint coverage.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single-action release mechanism automatically disengages all five restraint points simultaneously when activated, reducing the opportunity for human error. The integrated design ensures that adjustment and securing actions are performed uniformly across all restraint points, eliminating the possibility of neglecting to properly secure individual separate buckles.

Inventive Principle:
Principle #25Self-service

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 reduces the hassle and risk of securing children by allowing a single-action release and securing, enhancing safety and efficiency while eliminating the risk of loose or twisted straps.

Implementation Method 1

a lever arm providing the mechanical connection along a distal end thereof; a plate pivot point provided along a proximal end of the lever arm

Methodology Applied
Scientific EffectLever: Lever

Implementation Method 2

the lever arm providing the mechanical connection... the harness positioning system interconnecting the harness plate and the mechanical connection

Methodology Applied
Scientific EffectMechanical Advantage: Mechanical Advantage

Implementation Method 3

an actuator operatively associated with the harness plate by a mechanical connection and by a control signal synchronous with the single input

Methodology Applied
Scientific EffectActuator:

Data Source

PatentUS11833939B2Seat harness system
Publication Date: 2023.12.05 GREENBERG TZVI
  • US11833939B2 patent drawing
  • US11833939B2 patent drawing
  • US11833939B2 patent drawing

AI summary

A seat harness system having a harness plate lockable to a seat to form a five-point harness system for the seat. The harness plate is operatively associated with harness strapping, which is associated with a harness positioning system, which in turn is associated with an actuator to form a singular system that requires only a single action to release all five-points harness system by way of the actuator and the harness positioning system.