Embroidery Frame Elastic Member Attachment for Fabric Holding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing embroidery frames face challenges in maintaining an effective holding force for sewing workpieces due to variations in cloth type and thickness, as the elastic bodies used may not be suitable for all materials, leading to inconsistent frictional resistance.
Innovation Solution
An embroidery frame design featuring a ring-shaped inner and outer frame with an elastic member attached via an attachment member, allowing for adjustable friction through different elastic body types and surface profiles to accommodate various fabric types, ensuring a secure hold regardless of cloth thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a fixed elastic body is used around the inner frame, then the holding force is improved for certain cloth types, but the holding force becomes inconsistent when used with different cloth types and thicknesses
Solution Approach 1:
The patent applies parameter changes by providing multiple elastic bodies with different physical parameters (hardness, elasticity, surface profile) to match different cloth types and thicknesses. The contact portion's surface profile can be changed from flat to convex to concave depending on the workpiece, optimizing the holding force for each specific material type.
Solution Approach 2:
The patent implements dynamics by making the elastic body detachable and replaceable through the attachment mechanism. This allows the system to dynamically adapt to different workpiece requirements by swapping elastic bodies, transforming a static system into one that can change its properties based on operational needs.
2Force
If the elastic body contact portion is made to protrude toward the outer frame to increase frictional resistance, then the holding force is improved, but the elastic body may not operate effectively for various cloth thicknesses
Solution Approach 1:
The patent applies local quality by providing elastic bodies with different surface profiles (flat, convex, concave) at the contact portion to match different cloth types. The surface profile is locally optimized for each cloth type, allowing the same elastic body structure to effectively handle various cloth thicknesses and materials through profile selection.
Solution Approach 2:
The patent changes the surface profile parameter of the elastic body's contact portion to optimize frictional resistance for different cloth types. By varying the surface profile from flat to convex to concave, the system adapts the friction characteristics to match specific cloth properties, maintaining effective holding force across different thicknesses.
3Adaptability or versatility
If multiple types of elastic bodies are provided to suit different workpiece types, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent achieves universality by designing a standardized attachment mechanism that can accommodate multiple types of elastic bodies. The attachment member with positioning protrusions and grooves creates a universal interface, allowing different elastic bodies to be mounted on the same frame structure, reducing overall system complexity despite the variety of elastic body types.
Solution Approach 2:
The patent uses dynamics by implementing a detachable attachment mechanism that allows quick swapping of elastic bodies. This dynamic capability enables the system to adapt to different workpiece types without permanent modifications, reducing the need for multiple specialized frames and simplifying the overall device architecture.
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
The design enhances the holding force of the embroidery frame across different fabric types, preventing displacement and improving sewing quality by optimizing frictional contact with customizable elastic bodies.
Implementation Method 1
The elastic member is arranged on at least one of an outer peripheral surface of the inner frame and an inner peripheral surface of the outer frame
Implementation Method 2
The contact portion comes into contact with the work cloth. A frictional resistance increases due to the contact portion coming into contact with the work cloth
Data Source
AI summary
An embroidery frame includes an inner frame, an outer frame, an elastic member, and an attachment member. The inner frame is formed in a ring shape. The outer frame is formed in a ring shape and is configured to be fitted onto an outside of the inner frame. The elastic member is arranged on at least one of an outer peripheral surface of the inner frame and an inner peripheral surface of the outer frame. The attachment member detachably attaches the elastic member to one of the inner frame and the outer frame.