Cellular Shade Panel with Rollable Cell Structures Biased to Open

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Solution Overview

Problem

Existing cellular shades for architectural openings require vertical stacking for retraction, which damages cells and prevents them from opening fully, and they lack a compact, hidden storage solution.

Innovation Solution

A cellular shade system with a support tube and panel where cells are biased to open configurations, allowing for retraction around the tube, maintaining appearance and insulative properties, and providing both stacked and rolled storage options.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If cellular shades are retracted by vertical stacking, then the panel can be stored, but the cells are damaged and prevented from opening fully

Engineering Contradiction:
Improveretraction capabilityVSAvoidcell opening function
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The cellular shade system transitions from a static stacked configuration to a dynamic rolled configuration around a support tube. The cells are designed to dynamically collapse during retraction and automatically reopen during extension, allowing the system to adapt its state based on operational phase while maintaining cell functionality.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Instead of stacking cells vertically during retraction (conventional approach), the invention inverts the approach by rolling the entire panel around a support tube. This inversion allows cells to collapse flat during retraction and naturally spring open during extension, preserving their opening function while enabling compact storage.

Inventive Principle:
Principle #13The other way round (Inversion)

2Ease of operation

If cellular shades are retracted by vertical stacking, then the panel can be stored, but the storage configuration is not compact or hidden

Engineering Contradiction:
Improveretraction capabilityVSAvoidstorage space
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The cellular panel is nested around a support tube during retraction, with cells collapsing flat against the tube surface. This nesting configuration achieves compact storage by utilizing the cylindrical space of the support tube, significantly reducing the volume occupied compared to vertical stacking while maintaining easy operation through natural cell collapse and reopen mechanisms.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If cells are designed to open fully, then insulative properties are maintained, but the panel cannot be compactly stored

Engineering Contradiction:
Improveinsulative functionVSAvoidstorage space
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The cells exhibit dynamic behavior, maintaining their open insulative configuration during extended operation while automatically collapsing to a compact flat state during retraction. This dynamic transition allows the system to preserve insulative properties when needed while achieving compact storage when retracted, eliminating the trade-off between full opening capability and storability.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9540874B2Covering for architectural opening including cell structures biased to open
Publication Date: 2017.01.10 HUNTER DOUGLAS INC
  • US9540874B2 patent drawing
  • US9540874B2 patent drawing
  • US9540874B2 patent drawing

AI summary

A covering for an architectural opening including a support tube and a panel operably connected to the support tube and configured to be wound around the support tube. The panel includes a support sheet and at least one cell operably connected to the support sheet. The at least one cell includes a vane material operably connected to a first side of the support sheet and a cell support member operably connected to the vane material and configured to support the vane material at a distance away from the support sheet when the panel is in an extended position with respect to the support tube.