Rotating Nozzle Protector Assembly for Aerosol Can Impact Protection
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Solution Overview
Problem
Existing nozzle protectors for aerosol spray cans are not durable enough to withstand accidental drops, often fracturing during impact and failing to protect the nozzle actuator assembly, especially in heavier cans.
Innovation Solution
A two-piece nozzle protector design that snaps onto the second joint between the dome and valve plate, featuring a base with deflector walls and a rotating shell that can be opened or closed to allow for continued use of the spray can, providing protection by absorbing and redirecting impact forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stiff and bulky cover/nozzle protectors are used, then protection during shipping and display is improved, but durability during impact is worsened as they fracture easily
Solution Approach 1:
The protector is divided into two separate components: a base that attaches to the can and a shell that rotates over the base. This segmentation allows each component to be optimized independently - the base provides stable attachment while the shell provides impact protection through rotational movement, resolving the contradiction between shipping protection and impact durability.
Solution Approach 2:
The shell is designed to rotate relative to the base, transitioning from a static protective cover to a dynamic impact-absorbing structure. During impact, the shell can rotate to absorb and redirect forces, preventing fracture while maintaining protection during shipping and display.
2Ease of operation
If removable nozzle protectors are used, then ease of attachment is improved, but protection during use is worsened as they must be removed
Solution Approach 1:
The rotating shell allows the protector to remain attached during use rather than requiring removal. The shell can rotate open to allow nozzle operation while maintaining attachment to the can, providing both ease of operation and continuous protection.
Solution Approach 2:
The shell is extracted as a separate rotating component from the base, allowing it to be opened for nozzle access while remaining attached. This resolves the contradiction by providing protection during use without requiring complete removal like traditional removable protectors.
3Reliability
If a closed protector design is used, then protection is improved, but ease of use is worsened as the nozzle is blocked
Solution Approach 1:
The rotating shell transitions from a closed protective position to an open position during use. This dynamic movement allows the shell to provide protection when closed and allow nozzle access when rotated open, resolving the contradiction between protection and ease of use.
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 two-piece design effectively absorbs and redirects impact forces, preventing damage to the nozzle actuator assembly during drops, even for heavier cans, while allowing unrestricted use of the spray can.
Implementation Method 1
The two-piece design effectively absorbs and redirects impact forces, preventing damage to the nozzle actuator assembly during drops, even for heavier cans
Data Source
AI summary
A decor-able, multiple-configuration protector for the nozzle assembly of a spray can having parts capable of absorbing, deflecting, and/or redirecting damaging force from accidental drops and bumps.