Trigger Dispensing Head With Breakable Tab for Recyclable Toothpaste Dosing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing push-button dispensers for pasty products, particularly toothpastes, face challenges in recyclability due to complex structures and potential environmental pollution from breakable components, especially when made from plastics materials.
Innovation Solution
A dispensing head assembly with a separable actuator and a guarantee tab, comprising a deformable cap, intermediate and upper valves, and a suction valve, ensures effective dispensing while maintaining structural integrity and recyclability, with the guarantee tab ensuring tamper evidence and environmental safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the dispensing head is made in a single piece with the container tube or its tubular components, then the structural integrity is improved, but the device complexity increases and manufacturing becomes more difficult
Solution Approach 1:
The dispensing head is divided into separate components: a container tube, a dispensing head body, and an actuator assembly. The actuator is further segmented into a push-button and a breakable bridge portion. This segmentation reduces the overall structural complexity while maintaining functional integrity, allowing each component to be manufactured separately and assembled together.
2Reliability
If breakable bridges are used to remain attached to the actuator following the first dispensing, then the dispensing function is maintained, but the bridges may break in an uncontrolled manner and be dispersed into the surrounding area, resulting in environmental pollution
Solution Approach 1:
The breakable bridge portion is extracted as a separate, removable component from the actuator assembly. After the first dispensing operation, the breakable bridge is designed to detach cleanly from the actuator, allowing it to be easily removed and disposed of in a controlled manner, preventing uncontrolled dispersion and environmental pollution.
Solution Approach 2:
The breakable bridge is designed as a disposable component that is intentionally discarded after serving its purpose in the first dispensing operation. The controlled breaking mechanism ensures it can be easily separated and disposed of without causing environmental harm, while the main actuator assembly remains intact for potential reuse or proper recycling.
3Ease of manufacture
If all components are made out of plastics materials belonging to the same family, then the recyclability is improved, but the structural complexity increases
Solution Approach 1:
The dispenser is segmented into distinct components (container tube, dispensing head, actuator, breakable bridge) that can be manufactured from the same plastic material family, enabling complete recyclability. The segmentation allows each part to be separately processed during recycling while maintaining the benefit of using compatible materials throughout.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The assembly provides efficient dispensing of pasty products, ensuring recyclability and tamper evidence, reducing environmental pollution risks and manufacturing complexity.
Implementation Method 1
comprising a deformable cap
Implementation Method 2
parts having lips or diaphragms that work as check valves
Data Source
AI summary
A manually operable head assembly for a dispenser for pasty products which has a fixed head with a dispensing duct for dispensing a product, a pumping unit with an elastically deformable cap, an actuator, a guarantee tab connected to the fixed head and having a tab body, and at least one bridge connected to the actuator is provided. The at least one bridge is suitable for breaking on a first operation of the actuator. The tab body is configured to remain connected to the fixed head following the first operation of the actuator.