Roll-Up Cabinet Door Structure for Secure Closure in Tight Spaces

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Solution Overview

Problem

Conventional cabinet doors made of armor plates are heavy and difficult to mount, requiring significant space for rotation, which is inefficient and wasteful.

Innovation Solution

A roll door apparatus with a resilient member and clockwork springs allows the door to roll into a compact space, eliminating the need for extensive rotation and reducing mounting complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional armor plate doors are used, then the cabinet provides secure closure, but the door becomes heavy and difficult to mount

Engineering Contradiction:
Improvesecure closureVSAvoiddoor weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The door is divided into multiple armor plates that can be separately mounted and assembled, making the heavy door easier to handle and install while maintaining secure closure through the interlocking plate structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The door is nested within a door frame structure that provides support and distribution of weight, allowing the armor plates to be secured within the frame rather than requiring direct mounting to the cabinet

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If conventional rotating doors are used, then the cabinet provides easy opening, but significant space is required for door rotation

Engineering Contradiction:
Improvedoor openingVSAvoidrotation space
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The door transitions from a static rotating mechanism to a dynamic rolling mechanism that can adapt its position during operation, allowing the door to be rolled up into a compact state rather than requiring fixed rotation space

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The door opening mechanism moves from a two-dimensional rotation in the horizontal plane to a three-dimensional rolling motion that utilizes vertical space, enabling the door to be stored above or below the cabinet rather than requiring lateral clearance

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

3Strength

If conventional bolt-mounted doors are used, then the cabinet provides secure attachment, but mounting becomes difficult and time-consuming

Engineering Contradiction:
Improveattachment strengthVSAvoidmounting time
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The door assembly is segmented into pre-assembled units (armor plates within the door frame) that can be manufactured and tested separately, allowing for quicker installation by mounting the complete door assembly as one unit rather than assembling individual plates on-site

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The door frame acts as an intermediary structure that simplifies mounting by providing standardized attachment points and distributing loads across multiple locations, reducing the complexity and time of installation while maintaining secure attachment

Inventive Principle:
Principle #24Intermediary (Mediator)

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 roll door apparatus enables easy and space-efficient operation of the cabinet door, reducing installation time and optimizing space usage while maintaining secure closure and opening mechanisms.

Implementation Method 1

a roll door apparatus (40) including a roll door (46), a pole (44) and a clockwork spring (440) fitted about the pole (44)

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS8936329B2Cabinet with a roll door
Publication Date: 2015.01.20 CLOUD NETWORK TECH SINGAPORE PTE LTD
  • US8936329B2 patent drawing
  • US8936329B2 patent drawing
  • US8936329B2 patent drawing

AI summary

A cabinet includes a top wall, a bottom wall, two opposite sidewalls, and a roll door apparatus mounted between the top and bottom walls and positioned adjacent to one of the sidewalls. The top and bottom walls each define a slide slot perpendicular to the sidewalls and a number of cutouts communicating with the corresponding slide slot. The roll door apparatus includes a rotatable pole, a roll door rolled about the pole and fixed to the pole by a first end, a locking member mounted to a second end of the roll door opposite to the first end. The locking member includes a sliding portion top and bottom ends of which to be slidably received in one of the slide slots, and an engaging portion engaged in two of the cutouts of the top and bottom walls.