Dispensing Actuator Locking via Rotating Bushing and Deformable Stop
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dispensing systems for fluid products, such as cosmetics and pharmaceuticals, face complexity in handling and reliability issues with reversible locking mechanisms to prevent accidental actuation of the push button.
Innovation Solution
A system featuring a bushing with an insert that allows relative rotation and a deformable stop, connected to the dispensing member for conjoint rotation, which can be rotated to switch between active and inactive states, preventing or allowing actuation of the push button.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a reversible locking device is added to prevent accidental actuation, then product security is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is merged with the existing bushing structure. The insert is mounted within the bushing, and the deformable stop integrates with the push button assembly, combining multiple functions into existing components rather than adding separate locking mechanisms
Solution Approach 2:
The deformable stop automatically engages with the push button body through elastic deformation when the push button is pressed, creating a self-actuating locking mechanism that does not require additional actuators or complex control systems
2Reliability
If a locking mechanism is added to prevent accidental actuation, then actuation control is improved, but ease of operation deteriorates
Solution Approach 1:
The deformable stop automatically engages and disengages based on the actuation force applied to the push button, eliminating the need for users to manually operate a separate locking mechanism while still providing reliable actuation control
Solution Approach 2:
The deformable stop changes its physical state (deformed vs. undeformed) based on the force parameter applied to the push button, allowing it to transition between locked and unlocked states in response to user input intensity
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 system provides a simple and reliable method for locking the actuation of the dispensing member between uses, preventing accidental activation while allowing intentional use, thus enhancing user convenience and product security.
Implementation Method 1
at least one deformable stop, said locking device further comprising a structure which is connected to the bushing for conjoint rotation, said structure being arranged, by rotating said bushing relative to the insert, to deform the stop between an active state and an inactive state
Data Source
AI summary
A system for actuating a member for dispensing a fluid product has a push button and a body having a well for mounting on a tube for supplying the member. The push button is axially movable over an actuating course of the member. A locking device reversibly locks the actuation by preventing movement. The locking device has an insert mounted in the bushing with the option of relative rotation, the insert having means for connecting to the member for conjoint rotation and at least one deformable stop. The locking device has a structure connected to the bushing for conjoint rotation and is arranged, by rotating the bushing relative to the insert, to deform the stop between an active state in which said stop is arranged on the actuating course to interfere with the body and an inactive state in which said stop is at a distance from the course.