Sanitary Fitting Rosette Bayonet Connection Design
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Solution Overview
Problem
Existing rosette systems for sanitary fittings face challenges in simple installation and removal without damaging the trim part or adjacent surfaces, and they often lack a rattle-free retention mechanism, especially when dealing with surface irregularities.
Innovation Solution
A bayonet connection is introduced, utilizing a separate bayonet ring element that can be rotated between locking and release positions, allowing for easy installation and secure fixation, with a lead-in bevel providing a preloading force for rattle-free retention and accommodating surface irregularities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a snap-on connection is used to join the trim part and mounting part, then the installation process becomes complex and may cause damage to the rosette system or adjacent surfaces, but a bayonet connection is needed to enable simple and damage-free installation
Solution Approach 1:
The connection mechanism is segmented into separate functional elements: a bayonet connection element with a rotating locking mechanism, a mounting part with engagement features, and a trim part. This segmentation allows each component to perform its specific function independently, enabling simple installation while maintaining structural integrity.
Solution Approach 2:
The bayonet connection element incorporates a rotating mechanism that transitions between locked and unlocked positions. This dynamic element allows the connection to be easily made and broken by rotation, simplifying the installation and removal processes while ensuring secure attachment when locked.
2Reliability
If the trim part is securely fixed to the mounting part, then rattle-free retention is achieved, but the ability to easily remove and reinstall the trim part is reduced
Solution Approach 1:
The bayonet connection element provides a dynamic locking mechanism that can be rotated between a locked position (providing rattle-free retention) and an unlocked position (enabling easy removal). This dynamic design allows the same mechanism to fulfill both contradictory requirements at different operational states.
Solution Approach 2:
The bayonet connection element acts as an intermediary between the trim part and mounting part, providing the locking function while allowing controlled detachment. This mediator component enables secure retention during normal use while facilitating easy removal when needed, without requiring permanent fixation.
3Device complexity
If the locking mechanism is integrated into the trim part itself, then the structure is simplified, but the installation tools may damage the trim part or adjacent tile or wall surface
Solution Approach 1:
The locking function is segmented into a separate bayonet connection element that is distinct from the trim part. This separation allows the locking mechanism to be engaged and disengaged independently without applying stress or damage to the trim part or adjacent surfaces, while still providing secure attachment.
Solution Approach 2:
The bayonet connection element serves as an intermediary that absorbs the mechanical stresses of locking and unlocking operations. By placing this mechanism between the trim part and mounting part, the trim part itself is protected from damage during installation and removal operations.
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 bayonet connection enables easier and damage-free installation, ensures rattle-free retention, and compensates for surface irregularities, improving the overall usability and reliability of the rosette system.
Implementation Method 1
a lead-in bevel providing a preloading force for rattle-free retention
Implementation Method 2
a bayonet connection, utilizing a separate bayonet ring element that can be rotated between locking and release positions
Data Source
AI summary
A sanitary fitting, in particular a flush-mounted sanitary fitting, with a rosette that covers a subassembly of the sanitary fitting and that has a trim part on the visible side and a mounting part that is covered by the trim part and can be clamped to the subassembly with an installation wall interposed. The trim part and the mounting part are joined to one another by a separate bayonet ring element that has at least one locking element which can be moved along the circumference of the rosette in a direction of actuation between a locking position, in which the trim part is installed on the mounting part, and a release position, in which the trim part is detachable from the mounting part.