Flexible Slat Sliding Door on Hidden Tracks for Space-Saving Access

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Solution Overview

Problem

Conventional cabinet doors either protrude into living space when open, obstructing pathways and posing hazards, or require transparent materials that compromise privacy when closed.

Innovation Solution

A hinge-less flexible door system using slats mounted on external tracks, allowing the door to slide open without consuming internal space and providing a clean aesthetic.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional cabinet doors are hinged to swing open, then access to storage contents is provided, but the doors protrude into living space obstructing pathways and posing hazards

Engineering Contradiction:

Improveaccess to storage contentsVSAvoidspace occupied by door when open

Core Design Contradiction:

Ease of operationVSVolume of moving object

Solution Approach 1:

The door is segmented into multiple flexible slats that can independently move and flex during operation, allowing the door to coil or fold back along the cabinet perimeter rather than swinging outward as a single rigid panel

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The door movement transitions from a conventional two-dimensional swing arc into three-dimensional space along the cabinet's perimeter, utilizing the depth dimension to coil and fold the slats along the side walls and top/bottom surfaces

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Illumination intensity

If cabinet doors are made from transparent material to allow visibility, then contents are viewable, but privacy is compromised when closed

Engineering Contradiction:

Improvevisibility of storage contentsVSAvoidloss of privacy

Core Design Contradiction:

Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The door provides different optical properties at different states: opaque when closed for privacy, and transparent or open when accessed for visibility, allowing the user to have both privacy and visibility as needed

Inventive Principle:

Principle #3Local quality

3Volume of moving object

If hinge-less tambour door is used to slide open without protruding, then space is saved, but the track consumes peripheral cabinet space and requires maintenance

Engineering Contradiction:

Improvespace occupied by door when openVSAvoidperipheral space consumed by track

Core Design Contradiction:

Volume of moving objectVSArea of stationary object

Solution Approach 1:

The door is divided into multiple thin, flexible slats that can bend and flex, allowing them to navigate tight corners and return to their original position without requiring large-radius tracks

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The slats are designed to be flexible and dynamic, returning to their original rigid position after bending during door operation, which eliminates the need for large-radius tracks while maintaining smooth motion

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12571249B2Vertical slats joined to form a flexible sliding door mounted on hidden tracks

Publication Date: 2026.03.10 SLOAN WILLIAM JUSTIN

AI summary

A door mechanism that includes a track that includes a lip, and a door mounted on the track that includes a first slat, and a second slat, where the first slat includes a first tab and the second slat includes a second tab, and where the door is mounted on the track using the first tab and the second tab.