Segmented Hoop Frame for Space-Efficient Machine Quilting
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Solution Overview
Problem
Traditional machine quilting requires a large frame and extensive space, and involves time-consuming basting and cumbersome fabric manipulation, limiting the size of quilts that can be made and the convenience of the process.
Innovation Solution
A hoop frame apparatus that secures the quilt core on all sides, allowing for flexible positioning and rotation, eliminating the need for full-width rails and take-up rails, and enabling segmented stitching with a smaller footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a traditional quilting frame is used, then large quilts can be quilted, but a large amount of space is required
Solution Approach 1:
The patent divides the quilting process into segments by using multiple hoops that can be positioned at different locations on the quilt. Each hoop handles a specific zone, allowing the quilt to be processed in manageable sections rather than requiring the entire quilt to be accommodated in a single large frame at once.
Solution Approach 2:
The patent transitions from a two-dimensional plane (traditional frame working on the quilt surface) to a three-dimensional approach by using hoops that can be positioned at various heights and locations. The hoops can be stacked or arranged vertically and horizontally, utilizing spatial depth to accommodate large quilts in a smaller footprint.
2Productivity
If machine quilting on a frame is used, then quilting is convenient and expeditious, but a large frame is required
Solution Approach 1:
The quilt is divided into multiple zones, each handled by a separate hoop. This segmentation allows the quilting machine to work on smaller sections sequentially, maintaining high productivity while requiring only a compact frame that can accommodate individual hoops rather than the entire quilt.
Solution Approach 2:
The hoops are designed to be movable and repositionable rather than fixed. This dynamic configuration allows the hoops to be moved to different positions on the quilt as needed, enabling efficient processing of large quilts with a small frame by systematically working through different zones.
3Manufacturing precision
If hoops are used to hold fabric, then fabric can be held flat and straight, but fabric manipulation becomes cumbersome
Solution Approach 1:
The hoops are designed as multi-functional devices that not only hold fabric flat and straight but also can be easily positioned, removed, and repositioned. This universal design combines the fabric-holding function with easy maneuverability, allowing operators to quickly adjust hoop positions without cumbersome fabric manipulation.
Solution Approach 2:
The hoop system is designed to automatically maintain fabric tension and flatness once positioned, reducing the need for continuous manual adjustment. The hoops self-adjust to keep fabric taut and aligned during the quilting process, minimizing the manipulation effort required by the operator.
Data Source
AI summary
A hoop frame unit having a frame support structure, a hoop frame assembly, and a machine carriage assembly. The hoop frame assembly has a front fabric retainer, a rear fabric retainer, a first end retainer, and a second end retainer. Retainer clips mate with retainer seats on each of the retainers to secure fabric zones of quilt cores in place for machine sewing. The machine carriage assembly is supported by a front carriage track and a rear carriage track which are affixed on opposing ends to the frame support structure. The machine carriage assembly incorporates a lateral carriage element for carriage lateral movement, and a pair of longitudinal tracks on the lateral carriage element to provide for machine longitudinal movement.