Removable Parasol Rib Attachment With Pivoting Clasp

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Solution Overview

Problem

Existing parasol rib attachment devices are cumbersome and difficult to attach and detach from parasol canvas, lacking ease of use and convenience.

Innovation Solution

A removable parasol rib attachment device with a rod passing through an eyelet in the parasol canvas, featuring a pivoting clasp mechanism for easy attachment and detachment, and a tab for hanging accessories.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If existing parasol rib attachment devices are used, then the parasol ribs can be attached to the canvas, but the attachment and detachment process is cumbersome and difficult

Engineering Contradiction:
Improveease of attachment and detachmentVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The attachment device is divided into separate components: a clasp mechanism with jaws, a rod for insertion through the canvas, and a rib attachment portion. This segmentation allows each component to perform its specific function independently, making the overall attachment and detachment process simpler and more manageable while reducing operational complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The clasp mechanism incorporates movable jaws that can open and close dynamically to grip or release the rod. This dynamic element enables quick attachment by simply closing the jaws around the rod and quick detachment by opening the jaws, dramatically improving ease of operation without adding significant device complexity

Inventive Principle:
Principle #15Dynamics

2Reliability

If a secure attachment mechanism is used, then the parasol ribs are firmly attached to the canvas, but the attachment and detachment becomes difficult

Engineering Contradiction:
Improvesecurity of attachmentVSAvoidease of detachment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The rod features a curved or rounded portion that fits into the clasp jaws. This curvature allows the rod to be securely gripped when the jaws are closed, providing reliable attachment. However, when detachment is needed, the curved shape allows the rod to be easily pulled out by simply opening the jaws, maintaining ease of operation while ensuring secure attachment

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The rod acts as an intermediary element between the clasp mechanism and the rib. The clasp grips the rod, which in turn holds the rib, creating a three-component system. This intermediary allows the clasp to securely hold the rib through the rod while maintaining the ability to easily detach by releasing the clasp's grip on the rod

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4635360A1Removable device for attaching umbrella ribs to a parasol cover
Publication Date: 2025.10.22 JJA SA
  • EP4635360A1 patent drawingFigure 1
  • EP4635360A1 patent drawingFigure 2
  • EP4635360A1 patent drawingFigure 3

AI summary

The present invention relates to a device for removable attachment of a parasol rib to a parasol canvas, said device comprising: - at least one longitudinal lower female part (1) in the shape of an inverted L having a raised end (1A) relative to its opposite end (1B) of the inverted L, - at least one longitudinal male part (2) cooperating with said lower female part (1), - at least one longitudinal upper part (3) parallel to the longitudinal median axis of said longitudinal lower male part (1), - at least one first rod (4) integrally connecting the raised end (1A) of said lower female part (1) to a first end (3A) of said upper part (3), - said rod (4) allowing said upper part (3) to pivot in a plane parallel to the plane described by the longitudinal median axis of said lower female part (1),- at least one second rod (5) positioned integrally at said end (1B) of said lower female part (1), - said second rod (5) having a head (5A) which is housed in an opening (3C) of said upper part (3), said opening (3C) being of a shape complementary to the shape of said head (5A), said opening (3C) being located at one end (3B) of said upper part (3), said end (3B) being opposite said first end (3A) cooperating with said first rod (4).,