Container Stopper With Adhesive-Free Mechanical Overcap
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Solution Overview
Problem
Existing closures for bottles using adhesives to connect the cylindrical cap and overcap suffer from unpleasant odors that hinder the perception of the beverage's fragrance and lack a stable, adhesive-free connection.
Innovation Solution
A closure design featuring a cylindrical element with a first and second portion rigidly joined, and an overcap composed of two fixed bodies with snap engagement, interference fit, or screw connection, ensuring a stable and adhesive-free connection through mechanical means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesives are used to connect the cylindrical element and overcap, then connection stability is improved, but unpleasant odors are generated that hinder fragrance perception
Solution Approach 1:
The patent removes the adhesive substance from the connection system entirely, extracting the harmful element while maintaining the connection function through alternative mechanical means including friction fit, geometric interlocking, and snap-fit mechanisms
Solution Approach 2:
The patent replaces the chemical bonding mechanism (adhesives) with a mechanical connection system involving friction fit between the cylindrical element and overcap, geometric interlocking features, and snap-fit mechanisms that provide stable connection without chemical substances
2Object-generated harmful factors
If mechanical connection means are used instead of adhesives, then fragrance integrity is improved, but connection stability and resistance to stresses deteriorate
Solution Approach 1:
The patent employs curved and rounded geometric features in the connection interface between the cylindrical element and overcap, creating friction-based mechanical engagement that provides stable connection while maintaining fragrance integrity
Solution Approach 2:
The patent introduces geometric interlocking features and snap-fit mechanisms that engage in multiple dimensions, providing resistance to axial stresses and torque through three-dimensional mechanical engagement rather than simple linear connection
3Ease of operation
If the overcap is made thick for adequate manual grip, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent designs the overcap to serve multiple functions simultaneously: providing manual grip through adequate thickness, facilitating removal through lever action, and enabling reapplication through geometric features, thereby reducing overall device complexity through functional integration
Data Source
Figure 1~2
Figure 3~4a
Figure 5
AI summary
A closure comprises a cylindrical element (1, 101) having a first portion (2, 102) and a second portion (3, 103), the latter being adapted to engage, as a removable stopper, in a portion of a neck (5) of a container, an overcap (8, 108) attached to the cylindrical element (1, 101), comprising a first body (9, 109, 209) and a second body (15, 115, 215), attached together and defining a seat (19, 219). The cylindrical element (1, 101) is partially disposed in the seat (19, 219) to be locked within the seat (19, 219).