Door-Hinge Mounted Cabinet and Mirror for Independent Access

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Solution Overview

Problem

Existing furniture and storage solutions, such as cabinets and mirrors, lack the ability to be pivotally mounted on the same hinges as a door, allowing for flexible positioning and access while maintaining closure functionality.

Innovation Solution

A cabinet and mirror system where the hinges are supported by the door hinges, enabling pivotal movement relative to the door and frame, allowing the cabinet to be opened beyond 90 degrees and the mirror to be independently positioned for access or visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a cabinet is mounted on door hinges to allow pivotal movement relative to the door, then access to the cabinet interior is improved, but the structural complexity of the mounting system increases

Engineering Contradiction:
Improveaccess to cabinet interiorVSAvoidmounting system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The cabinet is nested within the door assembly, sharing the same hinge mounting points. The cabinet pivots relative to the door while the door pivots relative to the frame, creating a nested hierarchical relationship that enables access without requiring separate external mounting hardware

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The door hinges serve multiple functions: supporting the door's pivotal movement relative to the frame, and simultaneously supporting the cabinet's pivotal movement relative to the door. This multi-functionality reduces the need for additional specialized mounting mechanisms

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

2Ease of operation

If the cabinet is allowed to pivot beyond 90 degrees relative to the door, then storage accessibility is improved, but the stability of the cabinet positioning deteriorates

Engineering Contradiction:
Improvestorage accessibilityVSAvoidcabinet positioning stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The cabinet mounting system transitions from a fixed rigid connection to a dynamic articulated connection that allows controlled movement beyond 90 degrees. The hinge mechanism provides dynamic positioning capability while maintaining stability through mechanical constraints and gravitational forces

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If a mirror is independently positioned relative to the cabinet, then visibility and usability are improved, but the device complexity increases

Engineering Contradiction:
Improvemirror positioning flexibilityVSAvoidmounting system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The mounting system is segmented into independent modules: the door hinges, the cabinet mounting brackets, and the mirror mounting mechanism. Each segment can be adjusted independently, allowing the mirror to be positioned separately from the cabinet while sharing the same overall hinge support structure

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS8777339B2Cabinets and mirrors selectively mounted on hinges supporting roomdoors on door frames, hinges for such mountings, and methods for so mounting
Publication Date: 2014.07.15 HINGENUITY INT
  • US8777339B2 patent drawing
  • US8777339B2 patent drawing
  • US8777339B2 patent drawing

AI summary

A cabinet and a door are each provided with hinge sets having hinge parts secured thereto so that they can be separately mounted on the same hinge parts that are mounted on a door frame and are connected by a hinge pin for each hinge set that support the door on the door frame, using a single hinge pin for and as a part of each hinge set. With this mounting arrangement, the cabinet and the door of each such installation can move independently in an arc about the hinge pins connecting the door frame parts to the hinge parts fastened to the door and the hinge parts fastened to the cabinet without requiring the movement of the door concurrently with the movement of the cabinet.