Rotating Disk Fluid Dispenser Valve Mechanism
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Solution Overview
Problem
Existing fluid product dispensers require significant force to actuate the outlet valve and often rely on traditional axial or lateral pushing gestures, which can be inefficient and unsuitable for viscous products like creams, and typically use unit dosages.
Innovation Solution
A fluid dispenser featuring a rotating disk that acts as both the dispensing orifice and actuating member, utilizing a cam system to transform rotary motion into axial displacement of the movable member, allowing for lower actuation force and eliminating the need for unit dosages, with a return spring ensuring perfect sealing and easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional outlet valve with return spring is used, then sealing is guaranteed, but significant force is required to actuate the valve
Solution Approach 1:
Instead of pushing the valve stem axially to open the valve, the invention inverts the actuation mechanism by using a rotating disk that engages with the valve stem laterally. The rotation of the disk transforms lateral motion into axial displacement of the movable member, reducing the force required to overcome the return spring while maintaining sealing through the cam profile design.
Solution Approach 2:
The invention transitions from one-dimensional axial actuation to two-dimensional rotary actuation. The rotating disk operates in a rotational plane while the valve stem moves axially, creating a dimensional transformation that reduces actuation force. The cam element on the rotating disk converts rotational motion into the necessary axial displacement to open the valve.
2Ease of operation
If axial or lateral pushing gesture is used to actuate the valve, then the valve opens, but the gesture is inefficient and unsuitable for viscous products
Solution Approach 1:
The invention replaces static axial pushing with dynamic rotary motion. The rotating disk provides a more natural and efficient actuation gesture that users can easily perform, even with viscous products. The rotation generates continuous motion that effectively actuates the valve throughout the dispensing process, improving both ease of operation and dispensing efficiency.
3Quantity of substance
If traditional valve actuation is used, then unit dosages are dispensed, but continuous dispensing is not achieved
Solution Approach 1:
The rotating disk enables continuous dispensing by maintaining constant engagement with the valve stem throughout its rotation. Unlike traditional valves that dispense discrete unit dosages, the continuous rotational motion of the disk keeps the valve open for the duration of the actuation, allowing users to control the quantity dispensed continuously rather than in fixed units.
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 rotating disk design reduces the force required to open the valve, ensures perfect sealing, and allows for continuous dispensing without unit dosages, significantly improving the distribution of viscous products like creams by using a rotating mechanism that is easy to use and efficient.
Implementation Method 1
a return spring, advantageously flat in plastic material, acts between the rotating disc and the cover to return the rotating disc to the initial position after each rotation
Implementation Method 2
the rotary disc comprises a cam element for transforming the rotary movement of the disc into axial displacement of the movable member
Implementation Method 3
this movable member being axially movable and resiliently biased against the seat
Data Source
Figure 1~3
Figure 4~5
AI summary
Fluid-product dispenser comprising a reservoir of fluid product (R) in which the fluid product is stored under pressure, and a fluid-product outlet valve which is actuable from a closed position to an open position so as to define a dispensing orifice (62), the outlet valve comprising a movable member (51) which rests in a sealing manner on a seat (63) in the closed position and which is not in contact with this seat (63) in the open position, the movable member (51) being movable axially and being urged elastically against the seat (63), the dispenser also comprising an actuator member (61) for moving the movable member (51) between the closed and open positions, characterized in that the dispensing orifice (62) and the actuator member (61) are both formed by a rotary disc (6).