Adjustable Door Hinge Assembly for Uneven Floor Alignment

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Solution Overview

Problem

Existing door hinge assemblies for interior wall systems, particularly in seamless glass walls, face challenges in providing a robust and adjustable mechanism that allows for nearly 180° rotation of doors while ensuring proper alignment and leveling, especially on uneven floors.

Innovation Solution

A door hinge assembly featuring vertically adjustable posts with leveling assemblies, combined with pivot pins and bearing/barrel components that enable secure attachment to both the wall and door frames, allowing for precise adjustment and nearly 180° door rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed door hinge assembly is used, then the structure is simple, but it cannot accommodate uneven floors and provides poor alignment adjustment

Engineering Contradiction:
Improveadjustability to uneven floorsVSAvoidhinge assembly structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The hinge assembly incorporates vertically adjustable posts with leveling assemblies that allow dynamic adjustment of the door frame's vertical position and alignment. The posts can be adjusted vertically to compensate for uneven floors, and the entire assembly can be positioned at different heights to achieve proper door alignment while maintaining structural integrity.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If a robust hinge mechanism enabling nearly 180° rotation is implemented, then door functionality is improved, but the mechanism complexity and alignment requirements increase

Engineering Contradiction:
Improvedoor rotation capabilityVSAvoidpivot mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The hinge assembly is divided into distinct functional segments: adjustable posts for positioning, bearing portions for rotation support, pivot pins for articulation, and mounting plates for attachment. This segmentation allows each component to perform its specific function independently, enabling nearly 180° door rotation while keeping the overall mechanism manageable and aligned properly on uneven surfaces.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS8793935B2Door hinge assembly for an interior wall system
Publication Date: 2014.08.05 TEKNION LTD
  • US8793935B2 patent drawing
  • US8793935B2 patent drawing
  • US8793935B2 patent drawing

AI summary

A door hinge assembly includes a vertical post secured to a bottom rail. An upper post hinge portion and a lower post hinge portion are secured to the post. Each post hinge portion includes: (i) a post mounting plate; and (ii) a bearing portion projecting outwardly from the post mounting plate. The bearing portion includes a base with a vertical base bore. The assembly also includes an upper door hinge portion and a lower door hinge portion. Each door hinge portion includes: (i) a block securable to a door frame; (ii) a barrel portion projecting outwardly from the block, the barrel portion having a vertical barrel bore; and (iii) an upper pivot pin and a lower pivot pin, where a first end of each pin is secured in the base bore and a second end pivots in the barrel bore. The upper pivot pin connects the upper post hinge portion to the upper door hinge portion, and the lower pivot pin connects the lower post hinge portion to the lower door hinge portion.