Automated Shade Ring Attachment Apparatus
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Solution Overview
Problem
The attachment of rings to fabrics in window coverings, such as Roman shades, remains a labor-intensive manual process, lacking automated solutions for positioning and attaching rings to fabrics using sewing machines.
Innovation Solution
An apparatus featuring a lift bar for fabric attachment, clamps for fabric manipulation, and a pair of sewing machines that traverse the fabric to stitch and attach rings, enabling automated ring attachment and seam stitching for various types of window coverings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual labor is used to position and attach rings to fabric, then flexibility and precision in ring placement can be achieved, but labor intensity increases and productivity decreases
Solution Approach 1:
The apparatus enables self-service automation where the system automatically positions and attaches rings to fabric without requiring manual intervention. The automated positioning mechanism feeds rings to the sewing machine at predetermined intervals, and the sewing machine automatically stitches them to the fabric, eliminating the need for manual ring placement and attachment operations.
Solution Approach 2:
The patent replaces the manual mechanical system of ring attachment with an automated mechanical system. The apparatus uses a positioning mechanism that automatically feeds rings to the sewing machine, and the sewing machine automatically performs the stitching operation, substituting manual labor with automated mechanical processes for both positioning and attachment.
2Productivity
If automated sewing machines are used for fabric manufacturing, then productivity increases, but the specific task of ring attachment remains manual
Solution Approach 1:
The patent merges the automated fabric sewing process with the ring attachment process into a single integrated system. The sewing machine performs both functions: it sews the fabric and simultaneously attaches rings to the fabric at predetermined positions, eliminating the need for separate manual ring attachment operations and maintaining high productivity while improving ease of manufacture.
Solution Approach 2:
The sewing machine is designed with multi-functionality to perform both fabric sewing and ring attachment operations. The apparatus enables the sewing machine to automatically position and attach rings while continuing to sew the fabric, making the system universal for handling both fabric manufacturing and ring attachment tasks without requiring separate specialized equipment.
3Manufacturing precision
If manual positioning of rings is used, then precision in ring placement can be controlled, but time consumption increases
Solution Approach 1:
The apparatus performs preliminary positioning actions by automatically feeding rings to the sewing machine at predetermined intervals before the stitching operation. The positioning mechanism pre-aligns the rings with the fabric at the correct locations, ensuring precise ring placement accuracy while eliminating the time-consuming manual positioning steps.
Solution Approach 2:
The automated positioning and attachment system operates continuously without interruption. The apparatus maintains continuous movement of the sewing machine through the fabric while simultaneously positioning and attaching rings, eliminating the stop-start nature of manual operations and reducing overall time consumption while maintaining precise ring placement through continuous automated control.
Data Source
AI summary
An apparatus for stitching a fabric and/or attaching guide rings to the fabric for possible use in a covering for an architectural opening includes a lift bar to which a top edge of the fabric is connected so the fabric can hang into an underlying housing where a plurality of individually operated clamps are positioned. The clamps can manipulate the fabric as the lift bar is raised or lowered while horizontal tucks are formed in the fabric with a reciprocating tucker blade. A pair of traversing sewing machines are used to stitch a tuck and/or attach guide rings to the tuck in an automated operation.