Snap-On Bottle Cap Design for Threaded Neck Sealing
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Solution Overview
Problem
The existing production of threaded bottle caps requires complex and expensive machinery for precise screwing onto standardized bottle necks, leading to increased production costs, maintenance needs, and potential machine breakage, as well as challenges in achieving precise thread alignment and sealing.
Innovation Solution
A bottle cap design featuring a hollow cylindrical body with a protruding element that clicks onto the annular projection of the bottle neck, eliminating the need for complex threading machinery and allowing for simpler, safer, and more efficient cap attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If threaded caps are used on standardized bottle necks, then precise sealing and secure closure are achieved, but complex and expensive machinery is required for precise screwing operations
Solution Approach 1:
The cap is divided into two functional parts: an external threaded portion that engages with the bottle neck thread for secure closure, and an internal snap-fit portion that provides immediate sealing. This segmentation allows each part to perform its function independently, eliminating the need for complex machinery to achieve both sealing and closure simultaneously.
Solution Approach 2:
The internal snap-fit mechanism is pre-configured within the cap body, ready to engage with the bottle neck's annular projection before the threading operation begins. This preliminary positioning ensures that sealing is achieved immediately upon cap application, without requiring complex machinery to coordinate multiple actions.
2Reliability
If threaded caps are used on standardized bottle necks, then secure closure is achieved, but production costs and maintenance needs increase
Solution Approach 1:
The cap design merges two closure mechanisms (threaded engagement and snap-fit sealing) into a single integrated component. This combination allows the cap to achieve secure closure through simple linear insertion motion rather than requiring complex rotational threading machinery, thereby reducing production costs and maintenance needs.
Solution Approach 2:
The dual-mechanism cap is designed to self-align and self-seal during the simple insertion process. The internal snap-fit automatically engages with the bottle neck's annular projection, and the external threads automatically engage with the bottle neck thread, eliminating the need for complex machinery to precisely control positioning and sealing.
3Manufacturing precision
If threaded caps are used on standardized bottle necks, then precise thread alignment is required, but machine breakage and positioning errors increase
Solution Approach 1:
The internal snap-fit mechanism is pre-positioned within the cap body to automatically align with the bottle neck's annular projection during insertion. This preliminary configuration ensures that thread alignment occurs naturally without requiring complex machinery to precisely control the positioning, thereby reducing machine breakage and positioning errors.
Solution Approach 2:
The cap's internal snap-fit mechanism serves itself by automatically finding and engaging with the bottle neck's annular projection during the simple insertion process. This self-alignment eliminates the need for complex machinery to precisely control thread alignment, reducing machine stress and positioning errors.
Data Source
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AI summary
A particularly shaped bottle cap 1 to be coupled with a snap action is proposed to cover bottles showing a standard threaded bottle-neck. Usually, said bottles are covered with threaded caps which are screwed on the bottle-necks. The present bottle cap has one or more protruding components 3 which position under the convexity of bottle-necks of a particular type in which the convexity is usually utilized to apply the seal of inviolability.