Supporting frame for a steel bath

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Solution Overview

Problem

Existing support frames for steel bathtubs are unstable and complicated to adjust, with numerous pivoting joints that limit stability and complicate alignment.

Innovation Solution

A support frame with positionally variable support plates and carriages that allow easy alignment and secure attachment to a steel bathtub via non-positive and/or positive and/or material-to-material attachment, utilizing locking rails, cams, and adhesive layers for stable connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If numerous pivoting joints are used in the support frame, then the frame can accommodate various bathtub shapes, but the stability of the frame is reduced

Engineering Contradiction:
Improveaccommodation of bathtub shapesVSAvoidframe stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The support frame is divided into modular components: a stable base frame structure and separate adjustable support arms that can be independently positioned. This segmentation allows the frame to adapt to different bathtub shapes while maintaining overall structural stability through the rigid base frame.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support frame incorporates adjustable and movable components such as height-adjustable legs and pivotable support arms that can be dynamically repositioned to accommodate various bathtub configurations. These dynamic elements allow adaptation without compromising the static stability of the main frame structure.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If numerous pivoting joints are used in the support frame, then the frame can accommodate various bathtub shapes, but the complexity of adjusting the frame is increased

Engineering Contradiction:
Improveaccommodation of bathtub shapesVSAvoidadjustment complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The adjustment mechanism is segmented into simple, independent components such as individual height-adjustable legs and separate pivot points, each with its own simple adjustment mechanism. This reduces the overall complexity compared to a fully interconnected pivoting system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of using a complex mechanism to achieve adjustment, the design uses simple, straightforward adjustment methods such as threaded rods, pins, and basic hinges that are easy to manipulate, inverting the approach of using complex mechanical linkages for adjustment.

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

3Ease of operation

If the holding jaws are made movable on the rail, then the alignment of the support frame is simplified, but the risk of accidental adjustment increases

Engineering Contradiction:
Improvealignment easeVSAvoidpositioning stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The holding jaws are pre-positioned on the rail at appropriate locations before installation. During installation, they can be easily slid to the correct position, and then locked in place using simple locking mechanisms such as set screws or clip locks that prevent accidental movement while maintaining ease of initial positioning.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A locking mechanism acts as an intermediary between the movable holding jaw and the rail, allowing easy movement during installation but preventing accidental adjustment during use. The locking mechanism can be easily engaged and disengaged by the installer but remains secure during normal operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4516178B1Supporting frame for a steel bath
Publication Date: 2025.09.17 EDM SYST GMBH
  • EP4516178B1 patent drawingFigure 1a~1c
  • EP4516178B1 patent drawingFigure 1d~2
  • EP4516178B1 patent drawingFigure 3~4b

AI summary

The invention relates to a support frame for a steel bathtub, comprising at least one rail (1) with two retaining jaws (3, 6) that are variable in their position for bearing against a curved surface of the steel bathtub (8), wherein the retaining jaws (3, 6) are each received by a slide (2, 5) arranged on the rail (1), wherein at least one of the slides (2, 5) is slidably arranged on the rail (1) and can be fixed in defined positions, and wherein the retaining jaws (3, 6) are provided with means for frictional and/or form-fitting and/or material-fitting attachment to the steel bathtub (8).