Segmented Embroidery Hoop with Hinged Dual-Hoop System
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Solution Overview
Problem
Existing embroidery hoops limit embroidery to the edge of the material, preventing center embroidery on larger surfaces due to the design, which restricts the ability to tension and manage embroidery fabric effectively for broader applications.
Innovation Solution
A dual-hoop system with an inner hinge and outer hinge elements, combined with friction-increasing surfaces and a spring plate mechanism, allows for even tension and secure clamping of embroidery fabric across its entire surface, enabling edge and center embroidery on various sizes of fabric.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the upper hoop part engages partially into the open cross section of the lower part to clamp the embroidery material, then the clamping force on all sides is improved, but the embroidery material can only be embroidered along its edge and not in the center
Solution Approach 1:
The hoop is divided into two separate parts (upper and lower) that can be positioned independently. The upper hoop part can be placed at different locations on the lower hoop part, allowing the clamping area to be moved from the edge to the center of the embroidery material, thus enabling embroidery in multiple areas.
Solution Approach 2:
The hoop system transitions from a fixed configuration to a dynamic one where the upper hoop part can be repositioned along the lower hoop part. This dynamic positioning capability allows the operator to adapt the clamping location to match the desired embroidery area, whether edge or center.
2Ease of operation
If the upper and lower hoop parts are connected by a hinge, then the ease of operation is improved, but the embroidery material can only be embroidered along the edge
Solution Approach 1:
The hinge connection divides the hoop into separable upper and lower parts that can be independently positioned. This segmentation allows the upper part to be placed at various locations on the lower part, enabling both easy assembly and flexible positioning for different embroidery areas.
Solution Approach 2:
The hinge-connected hoop design provides multi-functionality: it maintains ease of operation for quick assembly while also enabling versatile positioning options. The same hinge mechanism that simplifies assembly also allows the upper hoop to be positioned at different locations to accommodate edge or center embroidery.
3Strength
If fasteners or tensioning devices are used to connect the upper and lower hoop parts, then the clamping tightness is improved, but the tensioning and shifting of the embroidery material becomes complicated
Solution Approach 1:
The hoop is segmented into two parts that can be independently adjusted. This segmentation allows the upper part to be positioned and clamped at different locations without requiring complex tensioning mechanisms, simplifying the operation while maintaining adequate clamping tightness.
Solution Approach 2:
The hoop system allows dynamic repositioning of the upper part relative to the lower part. This dynamic capability enables easy tensioning and shifting of the embroidery material by simply moving the upper hoop to a new position, eliminating the need for complicated adjustment mechanisms.
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
Enables easy handling and economic production of an embroidery hoop that can securely tension and embroider on both the edge and center of fabric layers of any size, such as tablecloths or clothing, facilitating broader embroidery capabilities.
Implementation Method 1
friction-increasing surfaces
Implementation Method 2
spring plate mechanism
Data Source
AI summary
An embroidery hoop (1) for a sewing machine or embroidery machine having two hoop parts, namely the lower hoop part (3) and the upper hoop part (5). The two hoop parts (3, 5) are connected to each other by a hinge that can be released without the use of tools. The embroidery material is clamped between the inner hinge element (9) on the lower hoop part (3) and the outer hinge element (15) on the upper hoop part (5). Through this measure, an embroidery material can be embroidered at any position.