Silkscreen Frame Locking Strip Groove System for Mesh Tensioning

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Solution Overview

Problem

Existing silkscreen frame technologies face challenges in securely tensioning and maintaining fabric tension, especially when exposed to solvents that degrade bonding agents, leading to potential fabric failure and the need for specialized glues to withstand tension and solvent effects.

Innovation Solution

A silkscreen frame with an elongated frame member featuring a locking strip groove system that includes a groove entrance, central cavity, insertion cavity, and side cavity, allowing for secure mesh tensioning through a pivoting locking strip mechanism that distributes tension evenly and prevents slippage, while also allowing for easy mesh removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a locking strip is inserted into a groove to secure mesh, then mesh tensioning is achieved, but the groove must be precisely formed and the locking strip must be precisely positioned, increasing manufacturing complexity

Engineering Contradiction:
Improvemesh tensioning securityVSAvoidgroove and locking strip precision requirements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The groove is divided into distinct functional regions: an insertion cavity for receiving the locking strip's leading edge, a central cavity for housing the strip during tensioning, and a side cavity with a vertex for securing the trailing edge. This segmentation allows each region to perform its specific function with standardized dimensions, reducing overall precision requirements while maintaining secure mesh tensioning.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking strip acts as an intermediary element between the mesh and the groove structure. It transfers tension forces from the mesh to the groove's cavities, distributing loads across multiple regions (insertion cavity, central cavity, side cavity) rather than concentrating stress at single precision-critical points, thereby reducing manufacturing precision requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If specialized glues are used to withstand tension and solvent effects, then bonding strength is improved, but the bonding process becomes more complex and time-consuming

Engineering Contradiction:
Improvebonding strength under tension and solvent exposureVSAvoidbonding process complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The invention extracts the bonding function from the groove structure itself and transfers it to the locking strip. The locking strip is mechanically interlocked with the groove's cavities, eliminating the need for specialized solvent-resistant glues. This mechanical bonding approach is simpler, faster, and equally effective under tension and solvent exposure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention replaces the chemical bonding mechanism (specialized glues) with a mechanical interlocking system. The locking strip engages with the groove's insertion cavity, central cavity, and side cavity through physical contact and geometric constraints, providing strength under tension and solvent resistance without requiring chemical adhesives.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If the groove is made long to accommodate the entire locking strip, then secure tensioning is achieved, but the frame member size increases

Engineering Contradiction:
Improvesecure tensioningVSAvoidframe member length
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

The locking strip is nested within the groove's cavities during the tensioning process. The insertion cavity receives the leading edge, the central cavity houses the strip during loading, and the side cavity secures the trailing edge. This nesting allows the groove to be compact while still providing secure tensioning, as the locking strip is contained within the groove's volume rather than extending its length.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The groove utilizes three-dimensional space by creating cavities at different positions and depths (insertion cavity, central cavity, side cavity with vertex). This vertical and lateral arrangement of cavities allows the locking strip to be securely held without requiring a long groove length, as the strip is distributed across multiple dimensions within the groove's footprint.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS8869693B2Locking strip panel for silkscreen frame
Publication Date: 2014.10.28 NISWONGER JOHN O H
  • US8869693B2 patent drawing
  • US8869693B2 patent drawing
  • US8869693B2 patent drawing

AI summary

A panel for tensioning fabric such as a silkscreen mesh is described. The panel includes locking strips secured to the edges using stitching through the mesh and locking strips. A method for fabricating the panel and tensioning the panel on a frame is also described. Locking strips may be stitched to edges of the fabric or mesh.