Articulation Fitting With Swivel Limiter For Sanitary Mounts

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Solution Overview

Problem

Sanitary objects, such as hand showers, require an articulated mount that is easily adjustable yet stable in position, space-saving, and prevents undesirable orientations like pointing against the ceiling, with existing solutions failing to balance these requirements effectively.

Innovation Solution

An articulated mount featuring a rotationally symmetrical joint head with a disk-shaped surface, a bearing shell with a disk or spherical design, and a screw-nut mechanism for adjustable pivoting, along with an internal swivel angle limiter to restrict movement to specific planes, ensuring stability and aesthetic appeal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a ball head with flattened area and spring-loaded piston is used, then the articulated arm can be fixed in a specific position, but the structure becomes more complex and larger

Engineering Contradiction:
Improveposition stabilityVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention extracts the spring-loaded piston and flattened area from the ball head, replacing them with a simpler nut that directly engages with the bearing shell's internal thread. This removes unnecessary complexity while maintaining the position stability function.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of using a spring-loaded piston to press against a flattened ball head surface, the invention inverts the approach by having the nut engage directly with the bearing shell's internal thread structure. This reversal simplifies the mechanism while achieving the same fixing function.

Inventive Principle:
Principle #13The other way round (Inversion)

2Ease of operation

If a plate screw is used to press the ball socket against the ball, then the joint can be adjusted, but the structure becomes more complex and the adjustment mechanism less smooth

Engineering Contradiction:
Improveadjustment smoothnessVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The invention merges the ball socket and bearing shell into a single integrated component with an internal thread. The nut directly engages this integrated structure, eliminating the need for separate plate screws and reducing overall structural complexity while maintaining smooth adjustment.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The bearing shell with internal thread serves multiple functions: it acts as both the bearing structure and the mounting interface for the nut. This multi-functionality eliminates the need for separate plate screws, simplifying the overall structure while maintaining adjustment capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If the joint head has a large diameter rotationally symmetrical surface, then the articulated arm can pivot smoothly, but the space required for storage increases

Engineering Contradiction:
Improvepivoting smoothnessVSAvoidstorage space
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The invention transitions from a traditional ball head design to a disk-shaped joint head with a rotationally symmetrical surface. This dimensional change allows for smooth pivoting motion while reducing the storage space requirement, as the disk can be compactly arranged within the bearing shell.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 articulated mount allows smooth adjustment while maintaining stability and preventing undesirable orientations, ensuring the sanitary object remains secure and visually appealing, meeting the requirements of space-saving and user-friendly operation.

Implementation Method 1

The storage includes a screw that is stretched through an opening in the joint head and screwed to a nut of the storage

Methodology Applied
Scientific EffectScrew mechanism: Screw

Implementation Method 2

The joint head, which has a rotationally symmetrical lateral surface, is mounted in the bearing. The axis of rotation of the rotationally symmetrical lateral surface of the articulated head then forms the axis about which the articulated arm can be pivoted

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP1887151B1Articulation fitting
Publication Date: 2015.06.03 HANS GROHE GMBH & CO KG
  • EP1887151B1 patent drawingFigure 1~2
  • EP1887151B1 patent drawingFigure 3

AI summary

Hinge mounting, especially for a sanitary element including a hinge arm (5), a hinge head (8) at the end of the hinge arm, having, except for the hinge arm lug, a rotationally symmetrical casing surface (9), a hinge head seating (4).