Closure Cap With Rotating Opening Device
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Solution Overview
Problem
Existing closure caps for containers pose risks of incomplete addition and contamination when adding secondary components to primary components, particularly in food, cosmetics, and pharmaceutical packaging, as they require manual removal and handling, which can lead to improper mixing or contamination.
Innovation Solution
A closure cap design featuring a first and second cap part with an intermediate floor and an opening device, where the second cap part is rotatable relative to the first, using a coupling device with a circumferential groove and axial guide groove to facilitate a rotary movement for opening and axial infeed, allowing for safe and controlled addition of secondary components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the closure cap is removed manually to add food additives, then the additives can be added to the food product, but the risk of incomplete addition and contamination increases
Solution Approach 1:
The closure cap system enables self-service functionality where the user can add food additives directly through the cap structure without removing it from the container. The integrated design allows the cap to serve both as a closure and an addition device, eliminating the need for manual removal and subsequent reattachment.
Solution Approach 2:
The opening body is nested within the closure cap structure, with the opening mandrel positioned inside the cap body. This nested arrangement allows the opening mechanism to be integrated within the cap itself, enabling controlled addition of additives through the intermediate floor opening while maintaining the cap's closure function.
2Ease of operation
If the closure cap is removed and handled manually, then additives can be accessed, but contamination of the food additives may occur
Solution Approach 1:
The opening mandrel is extracted as a separate functional element that can be actuated independently through the coupling device. This allows the opening action to be separated from the cap removal action, enabling users to access additives through a controlled opening mechanism while the cap remains securely attached to the container, preventing contamination.
Solution Approach 2:
The intermediate floor acts as an intermediary barrier that separates the additive storage space from the food product compartment. The opening device creates a controlled passage through this intermediate floor, allowing additives to be added in a controlled manner without direct exposure to the external environment that could cause contamination.
3Force
If a coupling device with circumferential groove and axial guide groove is used, then high axial infeed forces can be implemented, but the device complexity increases
Solution Approach 1:
The coupling device utilizes curved guide grooves that convert rotational motion into axial movement. The circumferential groove in the cap body and the axial guide groove in the opening body work together to guide the opening mandrel along a curved path, transforming the user's rotational input into controlled axial infeed force through geometric conversion rather than direct mechanical transmission.
Solution Approach 2:
The coupling device enables dynamic motion conversion where the opening body moves axially relative to the cap body during rotation. The guide grooves allow the opening mandrel to dynamically adjust its position, moving from a retracted state to an extended state that applies axial infeed force to the intermediate floor, creating a dynamic opening action rather than a static connection.
Data Source
Figure 1~2
Figure 3~6
AI summary
The invention relates to a closure cap for arranging on a container neck (17) of a container (18), comprising at least a first cap part (23) and a second cap part (22), wherein an intermediate base (56) is formed between the first cap part (23) and the second cap part (22) and delimits a receiving space (21), which is formed in the closure cap, with respect to a container interior, and comprising an opening device for forming an opening in the intermediate base (56), wherein the first cap part (23) serves for connection to a container neck thread of the container neck (17), and the second cap part (22) can be rotated relative to the first cap part (23) in order to use the opening device, and to a container (18) having such a closure cap.