Hinged Container Cap Ring for Easier Opening and Secure Retention

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Solution Overview

Problem

Existing closure devices face difficulties in easily transitioning the cap between open and closed positions due to the absence of attachment means in the lower ring section connected to the cap, making manipulation cumbersome.

Innovation Solution

A closure device with a lower ring having a first and second sector that are articulated, allowing the second sector to pivot between lowered and raised positions, and a cap with a hinge device enabling easy movement between closed, released, and tilted open positions, facilitated by recesses and reduced thickness in the second sector for easier passage over the collar.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the lower ring section connected to the cap lacks attachment means to allow pivoting, then the cap can move freely between positions, but manipulating the cap to pivot the lower ring section becomes difficult and cumbersome

Engineering Contradiction:
Improveease of manipulating capVSAvoidsecure attachment
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The lower ring is divided into two sectors with different properties: the first sector has attachment means for secure retention to the container neck, while the second sector lacks attachment means to allow free pivoting relative to the first sector. This local differentiation resolves the contradiction by providing security where needed and freedom of movement where required.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The lower ring is segmented into a first sector and a second sector that are articulated to each other. The first sector remains fixed to the container neck while the second sector can pivot freely, enabling the cap to move between closed and open positions without requiring the entire lower ring to move. This segmentation allows secure attachment of the container while enabling easy cap manipulation.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the second sector of the lower ring has sufficient thickness for structural integrity, then the locking mechanism is reliable, but the cap becomes difficult to move from open to closed position due to interference with the collar

Engineering Contradiction:
Improveease of moving cap between positionsVSAvoidstructural integrity of lower ring
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The second sector of the lower ring features localized thinning in the form of recesses at its ends, while the central portion maintains sufficient thickness for structural integrity and locking function. This local differentiation allows the ends to pass easily over the collar during cap manipulation while the central area remains strong enough to maintain the locking mechanism's reliability.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The recesses in the second sector are pre-formed during manufacturing to anticipate the passage over the collar during normal operation. This preliminary preparation of the geometry ensures smooth passage without requiring excessive force or complex manipulation, resolving the contradiction between ease of operation and structural integrity.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4026782B1Sealing device intended to be attached to the neck of a container
Publication Date: 2026.01.28 BETAPACK SAU
  • EP4026782B1 patent drawingFigure 1~2
  • EP4026782B1 patent drawingFigure 3~4
  • EP4026782B1 patent drawingFigure 5~6

AI summary

The invention relates to a capping device comprising: - a lower ring (9) having a first sector (16) and a second sector (17) being articulated to each other so that the second sector (17) pivots relative to the first sector (16), • a cap (1); - an articulation device which links the cap (1) to the second sector (17) of the lower ring (9); the second sector (17) of the lower ring (9) having an inner face which has at least one recess (32).