Wc fitting with pivotable part

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Solution Overview

Problem

Existing toilet sets with foldable parts often result in collisions during folding, leading to visible marks, damage, and unpleasant noise, particularly when the foldable lid or seat contacts the wall or shower facility, which affects the appearance and quality perception.

Innovation Solution

Incorporating a rotary stop positioned around the axis of rotation, combined with a sleeve-like configuration and a snap-over mechanism, to prevent unwanted collisions by limiting the folding movement and distributing forces, while being easy to clean and conceal from view.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the foldable part is allowed to fold up freely without limitation, then the folding movement is unrestricted and easy to operate, but collisions occur between the foldable part and the wall or shower facility, causing visible marks, damage, and unpleasant noise

Engineering Contradiction:
Improvefolding movement freedomVSAvoidcollision damage and noise
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The rotary stop is positioned to limit the folding movement before the foldable part can collide with the wall or shower facility. By establishing the position limit in advance, the harmful collision is prevented before it occurs, while still allowing full operational freedom within the safe range.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The rotary stop acts as an intermediary mechanism between the foldable part and the wall/shower facility. Instead of allowing direct contact that causes damage and noise, the rotary stop mediates the movement by providing a controlled stopping point, thus protecting the foldable part and surrounding structures.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If a rotary stop is introduced to limit folding movement and prevent collisions, then collision damage and noise are reduced, but the device complexity increases

Engineering Contradiction:
Improvecollision damage and noiseVSAvoidstructure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The rotary stop is integrated with the existing rotary joint structure of the foldable part. By merging the stop function with the rotational mechanism already present in the toilet set, the design avoids adding separate complex components while still achieving effective movement limitation and collision prevention.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The rotary stop serves multiple functions: it limits the folding movement range, prevents collision with the wall or shower facility, reduces noise, and protects the foldable part from damage. This multi-functionality allows a single component to address several concerns without proportionally increasing device complexity.

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

3Object-affected harmful factors

If the rotary stop is positioned to effectively prevent collisions, then protection against damage is improved, but the cleaning accessibility and visibility may be affected

Engineering Contradiction:
Improvecollision protectionVSAvoidcleaning accessibility
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The rotary stop is nested within or integrated into the existing structural components of the foldable part assembly. This nesting allows the stop mechanism to be concealed within the structure, providing effective collision protection while maintaining a clean external appearance and not interfering with cleaning accessibility of the visible surfaces.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 rotary stop effectively prevents collisions, reducing visual defects and damage, while the snap-over mechanism ensures safety and durability, enhancing the overall quality and usability of the toilet set.

Implementation Method 1

a rotary damper for damping a folding movement of the foldable part

Methodology Applied
Scientific EffectDamping: Damping

Implementation Method 2

a rotary damper for damping a folding movement of the foldable part

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3517007B1Wc fitting with pivotable part
Publication Date: 2020.01.22 GEBERIT INT AG
  • EP3517007B1 patent drawingFigure 1~2
  • EP3517007B1 patent drawingFigure 3~4

AI summary

WC set (1-3) for mounting on a WC body with a WC bowl, which WC set (1-3) comprises: a part (1) that can be mounted on the WC body and folded up and down on it, and a mounting part (3) that is designed for mounting the folding part (1) on the WC body and holds the folding part (1) rotatably, wherein the folding part (1) and the mounting part (3) are connected via a pivot joint (10), characterized in that a rotation stop (20, 23, 25, 26) for limiting the folding movement of the folding part (1) is provided in a part (20) of the WC set (1-3) surrounding a rotation axis of the pivot joint (10).