Umbrella Rib Structure Asymmetry for Fashionable Canopy Forms

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Solution Overview

Problem

Conventional umbrellas lack fashion appeal and consumer motivation due to their ordinary designs and structural limitations, making it difficult to create desirable forms without unnecessary structural pressure.

Innovation Solution

A rib structure for umbrellas with varying rib lengths and angles, connected by stretchers and threads, allowing for expandable and contractible cloth arrangements that create unique forms without excessive structural pressure, enhancing both aesthetics and functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If conventional umbrellas use uniform rib structures and circular cloth arrangement, then the structure is simple and easy to manufacture, but the appearance is ordinary and lacks fashion appeal

Engineering Contradiction:
Improveumbrella form varietyVSAvoidrib structure complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent applies asymmetry by making the ribs of different lengths instead of uniform length. Specifically, first ribs have a first length and second ribs have a second length that is different from the first length. This asymmetric rib configuration allows the cloth to form diverse shapes such as seashell or flower petal patterns, transforming the umbrella from ordinary to fashionable while maintaining structural feasibility

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent implements local quality by assigning different lengths to different ribs based on their specific positions and functions. The first ribs and second ribs are differentiated in length to create localized variations in the umbrella canopy shape, enabling specific design patterns in different regions of the umbrella surface

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If conventional umbrellas use fixed structural design, then manufacturing is easy, but the umbrella cannot adapt to various desirable forms and lacks consumer motivation

Engineering Contradiction:
Improveumbrella form adaptabilityVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent applies dynamics by making the rib lengths variable rather than fixed. The first ribs and second ribs can have different lengths that are specifically designed to achieve desired umbrella forms such as seashell or flower petal patterns. This dynamic configuration allows the same basic structure to adapt to multiple aesthetic forms while maintaining manufacturing feasibility through systematic design

Inventive Principle:
Principle #15Dynamics

3Shape

If conventional umbrellas use standard circular cloth stretching, then the structure is stable, but the design is commonplace and provides little consumer motivation

Engineering Contradiction:
Improvecanopy shape varietyVSAvoidstructural stability
Core Design Contradiction:
ShapeVSReliability

Solution Approach 1:

The patent maintains structural stability while achieving shape variety through asymmetric rib lengths. The first ribs and second ribs are designed with different lengths in a controlled manner, and the cloth is stretched accordingly to form stable patterns such as seashell or flower petal shapes. This approach ensures that the umbrella structure remains reliable while providing aesthetically pleasing and consumer-attractive forms

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentUS9027580B2Rib structure of umbrellas
Publication Date: 2015.05.12 DI CESARE
  • US9027580B2 patent drawing
  • US9027580B2 patent drawing
  • US9027580B2 patent drawing

AI summary

In order to provide a rib structure of an umbrella, which has superior appearance without receiving unnecessary structural pressure and can contribute to the development of the industry by motivating consumers to buy, this invention features the rib structure of an umbrella which is formed with multiple ribs wherein the length of specific ribs is different from the length of other specific ribs, cloth is stretched onto the above mentioned ribs thereby changing forms of the umbrella and when the above mentioned cloth is put between the above mentioned ribs and adjacent ribs, the cloth does not expand and contract in the direction of the length of said ribs, but is expandable and contractible in any direction with the exception of the direction of the length of said ribs.