Rosette Device Asymmetric Sleeve Design

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Solution Overview

Problem

Existing rosette devices for sanitary fittings have a rotationally symmetrical sleeve design that limits the cross-sectional shape of the sleeve visible in the installed state, which cannot be customized to match the aesthetic design of the fittings.

Innovation Solution

A rosette device with a sleeve composed of multiple parts, including a spindle body and rosette socket, where the spindle body is axially adjustable via a threaded arrangement without rotating the rosette socket, allowing for any desired cross-sectional shape of the sleeve visible in the installed state by using a depression in the rosette to accommodate the socket and enabling independent axial movement without relative rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the sleeve is designed as a single rotationally symmetrical part, then it can be easily manufactured and assembled, but the cross-sectional shape is limited and cannot be customized for aesthetic design

Engineering Contradiction:
Improveease of manufactureVSAvoidcross-sectional shape adaptability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The sleeve is divided into two separate parts: a rosette socket and a spindle body. The rosette socket remains rotationally symmetrical for easy manufacture, while the spindle body can have any desired cross-sectional shape. These parts are connected through a threaded arrangement that allows relative rotation, enabling the spindle body to be positioned axially without requiring the rosette socket to rotate.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the sleeve is designed with any desired cross-sectional shape, then aesthetic adaptation is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improvecross-sectional shape adaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The complex shape requirements are isolated to the spindle body only, while the rosette socket maintains a simple rotationally symmetrical design. This segmentation allows the complex cross-sectional shape to be achieved without making the entire sleeve device complex, as only one component needs the custom shape.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The spindle body is designed with an asymmetric cross-sectional shape that can be customized to match aesthetic requirements, while the rosette socket remains symmetric. This allows the visible portion of the sleeve to have the desired custom shape without requiring the entire assembly to be asymmetric, thereby controlling overall device complexity.

Inventive Principle:
Principle #4Asymmetry

3Ease of operation

If the rosette socket and spindle body rotate relative to each other during axial adjustment, then the threaded arrangement functions, but the rosette socket must be rotationally symmetrical

Engineering Contradiction:
Improveaxial adjustment functionalityVSAvoidcross-sectional shape freedom
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The rotational and axial adjustment functions are separated between two components. The spindle body rotates relative to the rosette socket during axial adjustment, while the rosette socket itself does not rotate. This segmentation allows the spindle body to achieve any cross-sectional shape while maintaining the threaded adjustment functionality.

Inventive Principle:
Principle #1Segmentation

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 the sleeve to be designed with any desired cross-sectional shape, improving aesthetic adaptation and functionality by allowing the rosette connector to be better suited to the sanitary fittings' design without requiring the rosette socket and spindle body to rotate relative to each other.

Implementation Method 1

a spindle body (8) which can be adjusted axially to the rosette (4) by means of a threaded arrangement (5) by rotation

Methodology Applied
Scientific EffectThreaded arrangement: Screw

Data Source

PatentEP3124709B1Rosette device
Publication Date: 2018.09.19 IDEAL STANDARD INT
  • EP3124709B1 patent drawingFigure 1~2
  • EP3124709B1 patent drawingFigure 3~5
  • EP3124709B1 patent drawingFigure 6

AI summary

The invention relates to a rosette device (1) for covering a wall connection (2) for a sanitary fitting body (3), comprising a rosette (4) that can be brought into contact with a wall and a sleeve assembly that is axially adjustable in the rosette by means of a thread (5). In the assembled state, the sleeve assembly can be axially slid onto a union nut (6) of the wall connection (2). According to the invention, the sleeve assembly is designed in multiple parts with a rosette socket (7) and a spindle body (8), wherein the spindle body (8) is axially adjustable in the rosette (4) by means of the thread (5) by a relative rotation with respect to the rosette and is rotatably coupled to the rosette socket (7).The rosette fitting extends into a recess (9) formed in the rosette (4) and in particular surrounding the thread (5), so that the rosette fitting (7) is moved axially into or out of the recess (9) during the axial adjustment of the spindle body (8) caused by relative rotation of the spindle body (8) and the rosette (4), without rotating.