Drop-Gate Crib Hinge Structure 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 designed to handle multiple children or withstand the rigors of emergency evacuations without structural damage.

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 durability, including bumpers for protection during movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

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

Engineering Contradiction:
Improveease of moving childVSAvoidcontainment security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The gate is designed to pivot between a vertical closed position for containment security and a horizontal open position for easy child access. This dynamic reconfiguration allows the same structure to serve dual purposes: securing the child when closed and facilitating easy entry/exit when opened horizontally, resolving the contradiction between containment security and ease of operation.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If the hinge is positioned close to the gate edge for compact design, then the structure is compact, but finger pinching hazard increases

Engineering Contradiction:
Improvestructure compactnessVSAvoidfinger pinching hazard
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The hinge is positioned at the top corner of the gate rather than along the vertical edge, utilizing the horizontal dimension to create spacing. This corner positioning allows the hinge mechanism to be located away from the child's reach zone while maintaining compact overall structure, thus reducing finger pinching hazard without significantly increasing device complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If the crib is designed for single child use, then the structure is simpler, but it cannot handle emergency evacuations with multiple children

Engineering Contradiction:
Improvemulti-child capabilityVSAvoidstructural durability
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The crib is designed with reinforced structural elements including strengthened corner posts, reinforced bottom rails, and durable fabric construction that enables it to safely accommodate multiple children simultaneously. This universal design allows the same crib structure to serve both single-child normal use and multi-child emergency evacuation scenarios, achieving adaptability without compromising structural durability.

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

4Ease of operation

If the crib lacks mobility features, then the structure is more stable, but it cannot be easily moved during evacuations

Engineering Contradiction:
ImprovemobilityVSAvoidstructural stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The crib incorporates removable caster wheels at the base corners that can be attached or detached as needed. When attached, the casters enable easy mobility for evacuations; when removed, the crib maintains maximum structural stability. This dynamic configuration allows the same crib to adapt between mobile and stable states, resolving the contradiction between ease of operation and structural stability.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS8572775B1Crib
Publication Date: 2013.11.05 FOUND WORLDWIDE
  • US8572775B1 patent drawing
  • US8572775B1 patent drawing
  • US8572775B1 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.