Toilet Shredder Removable Lid Access Hatches

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Solution Overview

Problem

Existing toilet shredder devices require professional intervention for maintenance due to inaccessible components, making it difficult for non-professionals to repair common breakdowns such as pump motor and shredding issues.

Innovation Solution

The shredder device is designed with accessible components, including a control box and motor/pump/shredding assembly, located beneath a removable cover, allowing easy access to the microswitch, capacitor, and shredding means without disassembling the toilet bowl, with features like a membrane pressure switch and sealed electrical connections for safety and ease of maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the control box and motor/pump/shredding assembly are sealed and positioned inside the tank for safety, then safety is improved, but accessibility for maintenance deteriorates

Engineering Contradiction:
ImprovesafetyVSAvoidaccessibility for maintenance
Core Design Contradiction:
Object-affected harmful factorsVSEase of repair

Solution Approach 1:

The device is divided into separate accessible components (control box with microswitch and capacitor, motor/pump/shredding assembly) that can be individually accessed through separate hatches in the lid, while the main tank structure remains sealed and intact.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A removable lid with strategically positioned hatches serves as an intermediary structure that allows access to internal components without compromising the sealed nature of the main tank, enabling maintenance while maintaining safety.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If the lid is secured by resistant snap-fastening means for safety, then safety is improved, but ease of operation deteriorates

Engineering Contradiction:
ImprovesafetyVSAvoidease of lid removal
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The lid is segmented with multiple access hatches that can be opened independently through removable covers, allowing users to access only the specific component needed without removing the entire sealed lid structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different parts of the lid have different access characteristics - the main lid body remains sealed with snap-fastening for safety, while specific local areas (hatches) have removable covers for easy access to controls and shredding components.

Inventive Principle:
Principle #3Local quality

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 non-professional users to perform routine maintenance on common breakdowns without professional assistance, improving safety and accessibility while preventing injuries by clearly marking power-off requirements.

Implementation Method 1

a membrane pressure switch controlling the microswitch

Methodology Applied
Scientific EffectPressure: Pressure Increase

Data Source

PatentEP2411153B1Wc macerator unit
Publication Date: 2013.04.24 SOC FR DASSAINISSEMENT SFA
  • EP2411153B1 patent drawingFigure 1A
  • EP2411153B1 patent drawingFigure 1B
  • EP2411153B1 patent drawingFigure 2A

AI summary

The invention relates to a shredder device intended to be connected to a toilet bowl, which consists of a vessel (1) into which the water and matter from said toilet bowl are conveyed and in which there is a motor (3) equipped in its upper part with a disintegrating means (5) contained in a basket (4) and at its lower part with a pump (7), said motor (3) connected to a capacitor (12) and a miniswitch (11) being switched on by a membrane-type pressure switch that controls the miniswitch, in which shredder device the control unit (10) is situated underneath an access hatch formed in the lid (2) of said vessel and closed by a removable cover (8) and the miniswitch (11) and the capacitor (12) are accessible at the top of the control unit (10) and/or the motor/pump/disintegrating means assembly (3,7,5,6) is situated under an access hatch formed in the lid (2) of said vessel and closed by a removable cover (8a). This shredder device through its design offers ease of intervention by non-professionals in the event of breakdown.