Velcro Strip Textile Frame Fastening
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Solution Overview
Problem
Existing methods for attaching textile fabrics, particularly nets, to frames using hooks or retaining pins are cumbersome, pose a risk of injury, and are limited to net-shaped fabrics, with complications in threading and potential damage.
Innovation Solution
The use of Velcro strips for attaching textile fabrics to frames, allowing for secure fastening and attachment of various fabric types without the risks associated with hooks or pins, using a device with a frame positioning system, pressing device, and optional edge tensioning for optimal adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hooks or retaining pins are used to attach textile fabric to frame, then the fabric can be securely fastened, but the operator faces injury risk and the net may be damaged
Solution Approach 1:
The patent introduces Velcro strips as an intermediary fastening mechanism between the frame and textile fabric. Instead of directly using hooks or pins that pose injury risks, the Velcro strips mediate the attachment process by providing a safe yet secure fastening interface that eliminates the harmful effects of sharp hooks while maintaining reliable attachment.
2Reliability
If hooks or retaining pins are used for attachment, then fastening is achieved, but the threading process becomes complicated and time-consuming
Solution Approach 1:
The patent extracts the complicated threading operation by replacing hooks and pins with Velcro strips that can be simply attached to the fabric edge. This eliminates the need for laborious threading through net meshes, reducing the attachment process to a simple fastening operation that significantly reduces time loss.
3Reliability
If hooks or retaining pins are used, then attachment is possible, but the method is limited to net-shaped fabrics with appropriate meshes
Solution Approach 1:
The patent applies Velcro strips that can universally attach to various fabric types including nets, fabric cloths, and other textile materials. The Velcro mechanism provides multi-functional attachment capability that works with any fabric having sufficient surface area, eliminating the limitation to only net-shaped fabrics with specific mesh structures.
4Productivity
If Velcro strips are used for fastening, then attachment speed increases and safety improves, but the fastening mechanism becomes different from traditional methods
Solution Approach 1:
The patent changes the fundamental parameter of the fastening mechanism from mechanical hooks/pins to adhesive Velcro strips. This parameter change enables faster attachment speeds and improved safety while the Velcro strips integrate seamlessly with the existing frame and pressing device structure, minimizing actual device complexity increases.
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
Velcro strips provide a faster, safer, and more versatile attachment method that securely holds textile fabrics to frames, enabling efficient gluing or other material-locking connections, suitable for various fabric types and frame configurations.
Implementation Method 1
the textile fabric is attached to at least one Velcro strip when it is stretched over the frame
Implementation Method 2
the textile fabric is pressed at least in regions on the frame by means of a pressing device
Data Source
Figure 1~3
Figure 4~5
Figure 6~10
AI summary
The method involves positioning a frame in or on a frame positioning device (3). A textile fabric i.e. web, is stretched over the frame, and partially pressed on the frame by a pressing device (4). The fabric is stretchably-fastened to a Velcro(RTM: hook and loop fastener) strip (5) over the frame, where the strip is partially arranged around the positioning device. The pressing device includes pressing bars (8, 9) that are spaced at distance from each other, where the fastening of the fabric to the frame is performed in an intermediate-free chamber (10) between the bars. An independent claim is also included for a device for firm-bond fastening i.e. affixing a textile fabric i.e. web, to frames.