Drop-Gate Crib Hinge and Latch Design to Prevent Finger Pinching

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Solution Overview

Problem

Existing cribs lack ease of use for moving children in and out, and they are not adequately designed for durability during emergency evacuations, as they often break when navigating obstacles.

Innovation Solution

A crib design featuring a pivoting drop gate with a hinge and striker plate configuration that prevents finger pinching, along with reinforced structures and casters for enhanced mobility and support, and bumpers for protection against damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional fixed gate is used in the crib, then the crib provides secure containment for the child, but it is difficult for adults to move children in and out of the crib

Engineering Contradiction:
Improveease of moving child in and outVSAvoidsecure containment
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The gate is designed to pivot between a vertical closed position (providing secure containment) and a horizontal open position (facilitating easy child movement). This dynamic reconfiguration allows the gate to adapt its orientation based on operational needs, resolving the contradiction between security and ease of access.

Inventive Principle:
Principle #15Dynamics

2Strength

If the hinge and striker plate are designed with narrow gaps for structural integrity, then the latch mechanism is compact and strong, but children's fingers can be pinched when the gate closes

Engineering Contradiction:
Improvestructural integrityVSAvoidfinger pinching
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

Cavities are designed into the hinge and striker plate structures beforehand to cushion and accommodate children's fingers. These cavities act as protective features that prevent pinching injuries before they can occur, while maintaining the structural integrity of the latch mechanism.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Ease of manufacture

If the crib is designed with lightweight materials for ease of assembly, then the crib is easy to set up and move, but it lacks durability during emergency evacuations when navigating obstacles

Engineering Contradiction:
Improveease of assemblyVSAvoiddurability during evacuation
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The crib employs composite construction combining lightweight materials (for ease of assembly) with reinforced structural elements (for durability during evacuation). This composite approach allows the crib to be both easy to set up and robust enough to withstand obstacles during emergency evacuations.

Inventive Principle:
Principle #40Composite materials

4Reliability

If the crib includes reinforced structural members for durability during evacuations, then the crib can withstand obstacles, but the overall weight and complexity of the crib increases

Engineering Contradiction:
Improvedurability during evacuationVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The crib structure is segmented into distinct functional zones: reinforced vertical members and diagonal bracing for structural durability, and lighter horizontal slats and panels for ease of assembly. This segmentation allows each component to be optimized for its specific function, balancing durability and complexity.

Inventive Principle:
Principle #1Segmentation

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 safe and easy movement of children in and out of the crib and provides increased durability during emergency evacuations by preventing pinching and structural damage.

Implementation Method 1

A hinge may be mounted between the stationary portion and the drop gate and may be configured to enable the drop gate to pivot relative to the stationary portion between an upper closed position and a lower open position

Methodology Applied
Scientific EffectHinge: Hinge

Implementation Method 2

The crib may include casters that are each operatively connected to the lower end of each respective vertical member

Methodology Applied
Scientific EffectCaster: Wheel

Data Source

PatentUS8745781B1Crib
Publication Date: 2014.06.10 FOUND WORLDWIDE
  • US8745781B1 patent drawing
  • US8745781B1 patent drawing
  • US8745781B1 patent drawing

AI summary

A crib is provided that includes a drop gate that pivots relative to a stationary portion of a wall from an open position to a closed position. The crib may include a hinge that in the closed position of the drop gate forms a cavity therein that has a height that is sufficiently large to enable a finger of a child to extend into the cavity to be adjacent a pivot axis of the hinge, without being pinched by the hinge. Also, the crib may include a stop surface of a latch device that contacts a projection in a cavity of a striker plate to prevent pivoting of the drop gate into an interior space of the crib. The cavity in the striker plate may include sufficiently large spaces above and below the projection to receive a finger of a child therein without the finger being pinched.