Container Cap with Segmented Ring and Connecting Pins
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Solution Overview
Problem
Conventional container caps are prone to separation, loss, and soiling when dropped, leading to environmental pollution due to complex designs and difficult manipulation required to return them to a closed state.
Innovation Solution
A cap design featuring a main body and a ring member connected by incision lines with connecting pins, allowing the cap to remain attached to the container even when opened, using a simple manufacturing process like injection molding or rotary cutting to form incision lines, facilitating easy opening and closing without additional barrier structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional separated cap design is used, then manufacturing is simple, but cap is prone to loss, soiling, and environmental pollution
Solution Approach 1:
The cap is divided into a main body and a ring member connected by incision lines with connecting pins. The incision lines create flexible connection paths that allow the cap to remain attached to the container while enabling opening and closing operations. This segmentation resolves the contradiction by providing both retention and operational simplicity.
Solution Approach 2:
The incision lines create a flexible connection between the main body and ring member, allowing the cap to deform and move while remaining attached. This flexible connection structure enables the cap to be opened and closed without requiring complex mechanical fasteners, resolving the contradiction between retention and simplicity.
2Reliability
If complex connecting structures are used to prevent cap separation, then cap retention is improved, but ease of operation deteriorates due to difficult manipulation
Solution Approach 1:
The incision lines with connecting pins create multiple flexible connection points that maintain cap retention while allowing easy manipulation. The segmented connection structure enables the cap to be opened and closed without requiring complex fastening or unfastening actions, resolving the contradiction between retention and ease of operation.
Solution Approach 2:
The incision lines with connecting pins automatically maintain connection between the cap and container during opening and closing operations without requiring additional user actions or complex mechanisms. The structure self-regulates to maintain retention while enabling simple operation.
3Reliability
If complex connecting structures are used to prevent cap separation, then cap retention is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The incision lines with connecting pins can be formed using standard injection molding techniques, dividing the cap into manageable sections that are created in a single manufacturing process. This segmentation approach maintains retention functionality while avoiding the need for complex assembly steps or specialized manufacturing equipment.
Solution Approach 2:
The incision lines and connecting pins are integrated into a single injection molding process, combining multiple structural elements into one manufacturing step. This merging of features resolves the contradiction by achieving complex retention functionality through a simple, cost-effective manufacturing process.
Data Source
AI summary
A cap for a container is formed so that the cap has a top plate and a circular sidewall. Two opposite sides of the circular sidewall circularly connect to each other, one periphery of the circular sidewall connecting to one surface of the top plate forming a closed end, and another periphery of the circular sidewall at an opposite side of the closed end forms an opened end. Incisions are in the circular sidewall. The incisions form a ring member located at the opened end of the cap separated from a main body of the cap by a first incision and a second incision between the opened end of the main body and the ring member.