Umbrella Canopy Pattern Alignment via Bias Cut Segmentation

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Solution Overview

Problem

The existing methods for creating umbrella canopies with patterns are labor-intensive and costly, requiring extensive cutting and matching of fabric pieces to achieve a finished look, which limits the production of large outdoor recreational umbrellas with intricate designs due to increased time and material waste.

Innovation Solution

A method involving the formation of an elongated sheet with a preselected decorative pattern, where pattern segments are arranged in inverted and non-coaxial orientations, and separated into canopy sections using bias cuts, allowing for automatic alignment when assembled, reducing the need for detailed matching and minimizing material waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple fabric pieces are stitched together to form a large umbrella canopy, then the canopy size is sufficient for outdoor use, but the pattern alignment becomes difficult and time-consuming

Engineering Contradiction:

Improvecanopy sizeVSAvoidpattern alignment time

Core Design Contradiction:

Area of stationary objectVSLoss of time

Solution Approach 1:

The fabric is divided into multiple panels that are printed with continuous pattern segments before assembly. Each panel contains a portion of the overall pattern, and when assembled, these segments automatically align to form a complete continuous pattern across the entire canopy, eliminating the need for time-consuming manual pattern matching during stitching

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The pattern is pre-printed on the fabric panels in the correct sequential arrangement before the panels are cut and assembled. This preliminary patterning ensures that when the panels are stitched together, the patterns automatically align without requiring additional matching operations, thus reducing assembly time while maintaining large canopy size

Inventive Principle:

Principle #10Preliminary action

2Manufacturing precision

If fabric pieces are cut and arranged to achieve pattern alignment, then a finished look is obtained, but material waste increases

Engineering Contradiction:

Improvepattern alignment precisionVSAvoidfabric waste

Core Design Contradiction:

Manufacturing precisionVSLoss of substance

Solution Approach 1:

The complete pattern is designed and printed across the entire canopy area on the fabric before cutting into panels. This ensures optimal material utilization as the pattern is arranged to fit the available fabric width, minimizing offcuts. The pre-printing step allows precise pattern placement without requiring additional fabric for matching during assembly

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Multiple pattern segments that would traditionally require separate fabric pieces are merged into a single continuous pattern printed across the fabric width. This allows the entire canopy pattern to be produced from one continuous fabric piece or minimally cut panels, reducing the number of seams and material waste associated with joining multiple separately patterned pieces

Inventive Principle:

Principle #5Merging (Combining)

3Manufacturing precision

If extensive cutting and matching of fabric pieces is performed, then pattern alignment is achieved, but production costs increase

Engineering Contradiction:

Improvepattern alignmentVSAvoidproduction cost

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The manual mechanical process of cutting and matching fabric patterns is replaced with a printing process that directly applies the complete pattern to the fabric panels in the correct arrangement. This substitution eliminates the need for skilled labor in pattern matching and reduces the time and complexity of the manufacturing process, thereby lowering production costs while maintaining high pattern alignment precision

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The pattern alignment is accomplished in advance during the printing stage rather than during assembly. By pre-printing the complete continuous pattern across the fabric panels before cutting and stitching, the complex task of pattern matching is eliminated from the production line, reducing both labor costs and manufacturing time while ensuring precise pattern alignment

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS7353583B1Method of forming an umbrella canopy

Publication Date: 2008.04.08 TUUCI WORLDWIDE LLC

AI summary

A method of forming an umbrella canopy having a substantially continuously aligned decorative pattern displayed thereon, wherein the canopy is of the type used on large, outdoor and/or recreational umbrellas. The method includes forming an elongated sheet of canopy material with the decorative pattern displayed along a continuous portion of the length thereof. The decorative pattern is defined by a plurality of substantially equivalent, successively disposed pattern segments, wherein adjacent ones of such pattern segments are inverted relative to one another. The canopy sections used to construct the final product of the umbrella canopy are formed by extending each of a plurality of bias cuts along the entire width of the sheet of canopy material and at predetermined angular orientations to a central longitudinal axis of the sheet. The separated canopy sections are then arranged into a substantially common orientation and interconnected to collectively correspond to an intended configuration of the umbrella canopy being formed.