Vertical-Roller Retractable Covering to Minimize View Obstruction
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Solution Overview
Problem
Existing retractable coverings for architectural openings, such as windows and doors, often obstruct the view when retracted as they occupy space on the sides of the opening, which is undesirable for maintaining unobstructed vision.
Innovation Solution
A retractable covering system where the fabric is wrapped around a vertical roller or drum positioned adjacent to the opening, allowing the fabric to be retracted without occupying unnecessary space, using a control system that synchronizes the movement of the fabric with a flexible strap and cord mechanism to ensure constant tension and smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If vertical shades are gathered adjacent one or both sides of an architectural opening in a retracted position, then the covering can be stored when not in use, but the gathered shades occupy space within the architectural opening thereby partially blocking the view through the opening
Solution Approach 1:
The patent transitions from horizontal gathering of fabric to vertical wrapping around a roller. By changing the retraction dimension from horizontal (across the opening) to vertical (along the roller axis at the side), the fabric is contained in a compact cylindrical form that occupies minimal space and does not block the architectural opening view.
Solution Approach 2:
The fabric is wrapped around and contained within the roller structure, creating a nested configuration where the covering material is housed inside the roller's cylindrical form. This nesting approach compactly stores the fabric without requiring additional space outside the roller.
2Ease of manufacture
If the fabric is wrapped around a vertical roller positioned adjacent to the opening, then unobstructed viewing is achieved when retracted, but a control system is needed to synchronize fabric movement with roller rotation
Solution Approach 1:
The control system merges multiple functions into integrated components: the cordless control unit combines wireless reception, motor control, and synchronization logic; the roller assembly integrates the fabric winding mechanism with the drive motor; and the tensioning system combines spring elements with the unwinding mechanism to maintain constant fabric tension throughout operation.
Solution Approach 2:
The system incorporates automatic synchronization where the control unit autonomously coordinates fabric deployment with roller rotation based on wireless commands. The spring-loaded tensioning mechanism self-regulates to maintain constant fabric tension without external intervention, and the roller automatically winds or unwinds the fabric in response to control signals.
Data Source
AI summary
A retractable covering for an architectural opening includes a headrail in which a control system is mounted and a fabric suspended from the headrail. The fabric is mounted to be moved laterally between a rolled up retracted position and an extended position across the architectural opening. At least one roller about which the fabric can be wrapped is mounted at an end of the headrail for rotation about a vertical axis, and the system includes a flexible control element that is substantially horizontally disposed for moving the covering between extended and retracted positions.