Fluid Dispenser Head with Resilient Blocking Mechanism
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Solution Overview
Problem
Fluid dispenser devices are prone to accidental actuation during transport or storage, requiring complex and costly anti-actuation systems that necessitate specific user manipulations.
Innovation Solution
A fluid dispenser device with a removable protective cap and resilient blocking means that automatically transition from a blocking to a release position when the cap is opened, preventing accidental dispensing without requiring specific user actions or modifications to existing reservoirs and pumps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex pull-tab or slide system is used to prevent accidental actuation, then the device is protected from accidental dispensing, but the device complexity and manufacturing cost increase
Solution Approach 1:
The blocking means are pre-positioned in a blocking position that prevents the dispenser head from moving relative to the reservoir. The system is prepared in advance with the blocking means engaged, so that accidental actuation is prevented before it can occur. The user simply needs to perform a preliminary action (pressing the button) to release the blocking means and enable normal operation.
2Reliability
If a complex pull-tab or slide system is used to prevent accidental actuation, then the device is protected from accidental dispensing, but the manufacturing and assembly cost increase
Solution Approach 1:
The blocking means are integrated with the dispenser head as a single component, eliminating the need for separate anti-actuation mechanisms. The blocking means are made integrally with the dispenser head, combining multiple functions into one element: it serves as both the dispenser head and the blocking mechanism. This merging of functions significantly simplifies manufacturing and assembly processes.
3Reliability
If existing standard reservoirs and pumps are modified to include anti-actuation systems, then accidental actuation is prevented, but the adaptability to existing devices decreases
Solution Approach 1:
The blocking means are designed as a universal component that can be integrated with existing standard reservoirs and pumps without modification. The dispenser head with integrated blocking means can work with any standard reservoir and pump assembly, making the anti-actuation system universally applicable to various dispenser device configurations while maintaining adaptability to existing devices.
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 solution effectively prevents accidental actuation of the fluid dispenser device, ensuring it remains secure during transport and storage without the need for complex systems or user-specific manipulations, while being simple and cost-effective to manufacture and assemble.
Implementation Method 1
said blocking means are resiliently urged towards their release position, such that the displacement of the protective cap towards its open position automatically causes said blocking means to be displaced and/or deformed towards their release position
Data Source
AI summary
A fluid dispenser device has a reservoir, a pump, a dispensing outlet, an actuator, and a removable cap. The actuator is integrally formed with the dispensing outlet in at least one embodiment. The cap has detents that project from the cap. The actuator is blocked from actuating by a blocking flange that is integrally connected with the dispensing outlet. The detents from the cap bend the blocking flange so that the reservoir can not move in relation to the dispensing outlet when the cap is in a closed position. When the cap is removed, the detents no longer bend the blocking flange, and the actuator can then move the reservoir in relation to the dispensing outlet and affect dispensation. In at least one embodiment the actuator is not axially aligned with the dispensing outlet.