Shower Tray with Automatic Walking Surface Lift for Cleaning Access

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Solution Overview

Problem

Existing shower trays with lifting walking surfaces are difficult to access and clean due to narrow spaces and heavy, precious materials, often causing damage during removal and manual handling.

Innovation Solution

A shower tray with automatic lifting means, allowing the walking surface to be pivoted and locked, enabling easy access to the collecting tub for cleaning, using a gas spring or actuator system and a locking mechanism operated by a switch, eliminating manual handling and ensuring safe lifting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual lifting of the walking surface is used, then the structure remains simple, but the operation becomes difficult and dangerous due to heavy materials and narrow spaces

Engineering Contradiction:
Improveease of walking surface removalVSAvoidcomplexity of lifting mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The gas spring mechanism enables the walking surface to lift itself automatically when the locking mechanism is released, eliminating the need for manual lifting by the user. The system serves itself by using stored elastic energy in the gas spring to perform the lifting action that would otherwise require human effort.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual mechanical lifting operation is replaced by a gas spring-based mechanical system that automatically provides lifting force. This substitution transforms the operation from manual effort to an automated mechanical response triggered by releasing the lock.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Shape

If the walking surface is made of heavy precious materials like marble, then aesthetic results are improved, but the weight increases making manual handling dangerous

Engineering Contradiction:
Improveaesthetic quality of walking surfaceVSAvoidweight of walking surface
Core Design Contradiction:
ShapeVSWeight of moving object

Solution Approach 1:

The gas spring acts as a counterweight mechanism, providing an upward force that balances and counteracts the weight of the heavy walking surface. This allows the surface to be supported without manual effort and lifted safely through automated means.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

3Length of moving object

If the slot between walking surface and perimeter frame is made small, then legal requirements are met, but access for cleaning becomes difficult

Engineering Contradiction:
Improvedimension of slotVSAvoidaccessibility for cleaning
Core Design Contradiction:
Length of moving objectVSEase of operation

Solution Approach 1:

Instead of trying to improve access through the narrow horizontal slot, the solution moves the access problem to a different dimension by lifting the walking surface vertically. This creates a large vertical opening that provides excellent access to the collecting tub for cleaning operations.

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

4Ease of operation

If automatic lifting means are added, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveautomation of walking surface liftingVSAvoidcomplexity of lifting mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The lifting system is segmented into two independent functional parts: a locking mechanism for securing the walking surface in position, and a gas spring for providing lifting force. This segmentation allows each component to be simple and reliable while together they achieve automated lifting 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

Facilitates easy and damage-free access to the innermost parts of the shower tray for cleaning, allowing automatic washing and maintenance without manual intervention, enhancing user safety and convenience.

Implementation Method 1

The automatic lifting means may include a gas spring with a movable stem; said gas spring is fixed to the collecting tub while the free end of the stem is fixed to the walking surface.

Methodology Applied
Scientific EffectGas spring: Spring

Data Source

PatentEP3501358B1Shower tray
Publication Date: 2021.03.24 ELBARI VALERIO
  • EP3501358B1 patent drawingFigure 1~2
  • EP3501358B1 patent drawingFigure 3~4

AI summary

The present invention refers to a shower tray with a walking surface placed at the top of a collecting tub. The shower tray comprises an automatic system to easily and conveniently access the innermost parts of the shower tray, below the walking surface.