Container Opening Device With Retaining Ring And Hinged Lid
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Solution Overview
Problem
Existing closure/opening devices for containers with pourable products, especially those made of plastic, contribute to environmental pollution due to improper cap handling and are not suitable for laminated containers, which hinder efficient pouring.
Innovation Solution
A three-piece opening/closing device with a cap that remains associated with the collar, featuring a limited rotation mechanism to prevent complete perforation and allow efficient pouring, along with a pouring spout and hinged lid for convenient use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cap is made detachable for easy removal, then ease of operation is improved, but environmental pollution increases due to improper disposal
Solution Approach 1:
The cap is designed with dynamic functionality - it can be completely removed from the collar for easy operation, but also features a partial attachment mechanism (retaining element) that allows it to remain partially connected to prevent complete separation and disposal. This dynamic design enables the cap to adapt between full removal for convenience and partial retention for environmental protection.
2Object-generated harmful factors
If the cap is made permanently attached to the collar, then environmental pollution is reduced, but ease of operation deteriorates due to inability to remove for cleaning or replacement
Solution Approach 1:
The cap features a dynamic attachment system with a retaining element that provides partial connection. This allows the cap to remain attached during normal use to prevent loss and pollution, while still enabling complete removal when needed for cleaning or replacement, thus balancing environmental protection with operational convenience.
3Ease of operation
If the cutting element is allowed to rotate freely with the cap, then ease of operation is improved, but reliability deteriorates due to incomplete cutting or product spillage
Solution Approach 1:
The collar is equipped with guiding means that pre-establish a controlled rotation path for the cutting element. As the cap rotates during opening, the guiding means ensures the cutting element follows a precise trajectory to completely sever the sealing portion, preventing incomplete cutting and product spillage while maintaining smooth operation.
4Ease of operation
If the lid is made hinged for easy opening, then ease of operation is improved, but device complexity increases due to additional hinge mechanism
Solution Approach 1:
The hinge connecting the lid to the cap is made of elastic material, providing flexibility and ease of opening without requiring complex mechanical hinge mechanisms. This elastic hinge allows simple rotational movement while maintaining structural integrity, reducing device complexity compared to traditional rigid hinge designs.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3B
AI summary
Opening/closing device (1) for a container (100) for pourable products, having at least one perforable portion (101), said opening/closing device comprising a collar (2) combinable with said container at said perforable portion, a cap (3) constrainedly movable by first guiding means (40), which are interposed between said cap (3) and said collar (2), on the outer surface (2a) of said collar (2), and a cutting element (5) constrainedly movable by second guiding means (60), which are interposed between said cutting element (5) and said collar (2), inside said collar (4) for severing said perforable portion, said device (1) further comprising pushing means (7) for said cutting element (5), which are actuated by said cap (3) during at least its first displacement on said outer surface (2a) of said collar (2), for promoting the displacement inside said collar of said at least one cutting element in the direction of said perforable portion, wherein said cap (3) is provided with at least one through hole (32) for pouring said pourable product and with at least one lid (10) integrally constrained to said cap and adapted to seal, or open, the passage of said at least one through hole (32), said first guiding means (40) only rotatably constraining said cap (3) to said collar (2), characterized further comprising means (11) for limiting the rotation of said cap with respect to the outer surface (2a) of said collar (2) between a first assembled position (P1) for said opening/closing device and a second locked position (P2) of said cap (3) on said collar (2), and in that by comprising a retaining ring (80) integrally constrained at the lower end of said cap by a plurality of frangible bridges, said frangible bridges being severed at least when said cap is displaced from said first assembled position