Pleated Roller Shade Manufacturing with Segmented Strips
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Solution Overview
Problem
Conventional roller shade manufacturing methods result in significant waste, limited fabric selection, and high storage and handling costs due to the need for large rolls of material, which restricts the production of wider shades and requires extensive inventory and specialized fabrication space.
Innovation Solution
A method involving a symmetric stack of pleated material strips, 12 feet long and up to 12 inches wide, where each strip is cut to the desired width and attached to a roller with micro tabs, allowing for even winding and reduced waste, using glue lines or ultrasonic welding, and a follower to maintain pleat alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If large rolls of material are used for manufacturing roller shades, then the production of wider shades is enabled, but significant waste is created during the manufacturing process
Solution Approach 1:
The material is divided into individual strips that are pleated and stacked. Each strip can be independently cut to the exact width needed for the shade, eliminating the need to trim entire rolls and reducing waste significantly.
Solution Approach 2:
The invention transitions from working with material in rolls (horizontal dimension) to working with material in stacked strips (vertical dimension). This allows precise cutting of each strip to the required width while maintaining efficient use of the original material roll.
2Adaptability or versatility
If large rolls of material are stored in the fabricator's facility, then the production of various shade sizes is enabled, but storage space and handling requirements increase
Solution Approach 1:
Instead of storing complete large rolls for different shade widths, the material is segmented into standardized strips that can be reconfigured to create shades of various widths. This reduces the number and size of rolls that must be stored.
Solution Approach 2:
The invention changes the storage parameter from storing material by final product width (requiring separate rolls for 3ft, 4ft, 6ft shades) to storing material by standardized strip dimensions that can be combined in different quantities to achieve any shade width.
3Strength
If conventional roller shade material with coating is used, then the material provides strength and uniform thickness, but the hand and style of fabrics is limited and cannot be used for drapes or soft Romans
Solution Approach 1:
The material is divided into narrow strips that are pleated and stacked. This segmentation allows the use of lighter, more delicate fabrics that would be unsuitable for conventional roller shades, as the pleated construction provides the necessary structure without requiring heavy coating.
Solution Approach 2:
The invention creates a composite structure by stacking and bonding multiple pleated strips together with tabs. This composite construction provides the strength and rigidity normally achieved through coating, while allowing the use of a much broader range of fabric types including those suitable for drapes and soft Romans.
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
This method reduces waste, lowers storage and handling costs, enables the production of wider roller shades, and allows for a greater variety of fabrics to be used, including those suitable for other products, by optimizing yield and minimizing inventory needs.
Implementation Method 1
The follower applies pressure to the material so that the material winds evenly on the roller
Implementation Method 2
The strips of material are preferably bonded with glue line or ultrasonic welding
Data Source
AI summary
In a method for making roller shades a stack of pleated material is cut so that the length of the stack corresponds to the width of the roller shade being made. Then the edge of the material is attached to a roller so that the plurality of pleats are parallel to the longitudinal axis of the roller. Preferably the stack of pleated material has been made from strips bonded together to form tabs where the edges of adjacent fabric segments are joined together. Preferably the tabs in the panel of pleated material will be along one edge of the stack and the pleats will be along the opposite edge of the stack.