Removable Nozzle Shield Coupling for Easy Dispenser Maintenance
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Solution Overview
Problem
Existing fluid dispensers have shields that are not readily removable for replacement, making maintenance and replacement difficult.
Innovation Solution
A fluid dispenser design featuring a removable nozzle shield with a coupling mechanism using hook and axle members, where one member is spring-biased to move between positions, allowing for easy engagement and disengagement for access and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shield is used to protect the nozzle, then protection and security are improved, but ease of removal and replacement deteriorates
Solution Approach 1:
The shield is divided into separable components with hook members on one end and axle members on the other, allowing the shield to be segmented into removable parts that can be easily detached and replaced while maintaining protection during operation
Solution Approach 2:
The shield transitions from a static fixed structure to a dynamic removable structure, enabling it to switch between providing protection during operation and being easily removed for replacement through the spring-biased coupling mechanism
2Stability of the object's composition
If a fixed coupling mechanism is used for the shield, then structural stability is improved, but ease of access and removal deteriorates
Solution Approach 1:
The spring-biased coupling mechanism provides self-aligning and self-latching functionality, where the spring automatically urges the hook and axle members into engagement position and maintains stable attachment without requiring complex manual intervention for both securing and removing the shield
3Ease of repair
If a spring-biased movable coupling mechanism is used, then ease of removal is improved, but device complexity increases
Solution Approach 1:
The complex spring-biased coupling mechanism is localized only to the shield attachment areas, while the rest of the dispenser remains simple and unchanged, concentrating the complexity only where needed for easy shield removal and replacement
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
Enables a tamper-free, easy-to-replace nozzle shield that can be moved between open and closed positions for maintenance and replacement, improving user accessibility and convenience.
Implementation Method 1
a biasing member urging the one of the axle member and hook member which is carried by the housing to assume the first rear position, the one of the axle member and hook member which is carried by the housing being movable from the first rear position to the second forward position against the bias of the biasing member
Data Source
AI summary
A coupling mechanism for coupling a nozzle shield to a dispenser housing using interacting hook members and axle members. One of the hook members and axle members is carried by the housing. The member which is carried by the housing is preferably movable between a forward and a rear position as by being slidable relative to the housing and spring biased as to a rear position. In moving the cover from a closed position to a forward position, the hook member and axle member are in engagement with the member which is movable relative to the housing, preferably moved against the spring bias. For removal of the cover, with the cover approximate the closed position, the member which is carried by the housing is moved relative the housing against the spring bias to a forward position in which the hook member may be disengaged from the axle member.