Bottle Dispensing Device with Segmented Bottom Wall
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dispensing devices for bottles with granular or powdered products risk the bottom cap falling into the bottle during use, posing a safety hazard.
Innovation Solution
A dispensing device with a cap featuring a tear-away ring and a hollow piston that breaks through a hinged bottom wall, preventing complete detachment and ensuring safe release of the product into the bottle, compatible with standard bottle designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hollow piston with a bottom wall is used to release product into the bottle, then the product release function is achieved, but the bottom wall may detach completely and fall into the bottle creating a safety hazard
Solution Approach 1:
The bottom wall is segmented into a fixed portion and a movable portion that can detach controllably. The hollow piston's bottom wall includes a fixed part attached to the piston body and a movable part that breaks away to release the product, preventing complete detachment and ensuring safety.
Solution Approach 2:
The tear-away ring is pre-positioned around the hollow piston, and the bottom wall is pre-configured with a breakable section. When the user pulls the tear-away ring, the bottom wall automatically breaks at the predetermined location, enabling controlled product release without manual intervention and preventing safety hazards.
2Reliability
If a tear-away ring mechanism is added to prevent cap detachment, then safety is improved, but the device complexity increases
Solution Approach 1:
The tear-away ring is merged with the cap structure, and the breakable bottom wall is integrated into the hollow piston. This combination creates a unified safety mechanism where the ring and bottom wall work together as a single system, reducing the need for separate components and simplifying the overall device structure.
Solution Approach 2:
The bottom wall automatically breaks and releases the product when the tear-away ring is pulled, without requiring additional mechanisms or user actions. The system serves itself by using the user's simple pulling motion to trigger the entire product release sequence, minimizing complexity.
Data Source
AI summary
A bottle with a dispensing device includes a cap having a female screw; a tubular element, coaxial with the female screw, having a lower end, which is closed by a bottom wall and projects inside the neck of the bottle; and a collar joined to the top of the tubular element through a tear-away. A hollow piston having an open lower end is inserted in the tubular element and is suitable for breaking through the bottom wall of the cap after the collar together with the tear-away ring has been removed. The hollow piston and bottom wall of the tubular element define a chamber containing a product. The lower end of the hollow piston has an inclined profile. Means are provided to stop the stroke of the hollow piston before the bottom wall completely detaches and prevent the hollow piston from rotating at the end of its stroke.