Waste Container Cleaning Device Side Chamber Access

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Solution Overview

Problem

Existing waste container emptying vehicles face challenges in accessing and maintaining technical system components due to limited space, requiring the device to be removed for maintenance, which is laborious and time-consuming.

Innovation Solution

The vehicle design includes a trough that narrows by at least 50 cm from its upper side to its underside, creating side space for a chamber to house technical system components, making them readily accessible without disconnection of hydraulic and electrical connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If technical system components are placed on the front side of the device, then all components can be accommodated in limited space, but access to components becomes difficult and maintenance requires device removal

Engineering Contradiction:
Improvespace for componentsVSAvoidaccess to components
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The patent transitions from placing components on the front side (2D surface arrangement) to utilizing the side space created by the tapered trough (3D spatial rearrangement). The trough narrows from upper side to underside by at least 50 cm, creating a chamber on the side of the device that accommodates all technical system components, thereby providing both adequate space and easy side access without requiring device removal.

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

2Ease of repair

If device is removed from vehicle for maintenance, then components can be accessed, but hydraulic and electrical connections must be disconnected which is laborious and time-consuming

Engineering Contradiction:
Improvecomponent accessibilityVSAvoidmaintenance time
Core Design Contradiction:
Ease of repairVSLoss of time

Solution Approach 1:

The patent segments the device into functionally independent modules: the trough assembly for waste handling and the chamber assembly for housing technical components. This segmentation allows the chamber with its components to be independently accessible from the side, enabling maintenance of hydraulic and electrical components without removing the entire device from the vehicle or disconnecting connections.

Inventive Principle:
Principle #1Segmentation

3Device complexity

If trough maintains uniform width, then structural simplicity is maintained, but no space is created for chamber housing components

Engineering Contradiction:
Improvetrough structureVSAvoidspace for chamber
Core Design Contradiction:
Device complexityVSVolume of stationary object

Solution Approach 1:

The patent introduces asymmetry in the trough design by narrowing it from the upper side to the underside on one side by at least 50 cm, while maintaining functional integrity. This asymmetric tapering creates the chamber space needed for housing technical components without significantly complicating the overall trough structure, as the narrowing is concentrated in a specific region rather than requiring complete structural redesign.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentEP3253691B1Vehicle provided with a device for emptying and cleaning waste containers
Publication Date: 2019.06.19 A W ONROEREND GOED BV
  • EP3253691B1 patent drawingFigure 1
  • EP3253691B1 patent drawingFigure 2
  • EP3253691B1 patent drawingFigure 3

AI summary

Device (1) for cleaning waste containers (14), which device (1) is suitable for placing on a vehicle (2), comprising a receiving space (3) for receiving waste (15), a trough (4) for receiving and guiding waste (15) to the receiving space (3), a loading space (5) for loading waste (15) therein, displacing means (6) for displacing waste (15) from the receiving space (3) to the loading space (5), cleaning means (18) for cleaning an emptied waste container (14), and technical system components (11), wherein the central vertical plane (7) of the receiving space (3) in the longitudinal direction of the vehicle (2) is offset at least 25 cm relative to the central vertical plane (8) of the loading space (5) in the longitudinal direction of the vehicle (2), and the trough (4) narrows by at least 50 cm from its upper side to its underside on a side (9) extending in the longitudinal direction of the vehicle (2) such that on a side of the device (1) there is space for a chamber (12), adjacently of said side (9) of the trough (4) and the side (19) of the receiving space (3) connecting thereto, suitable for placing of the technical system components (11) therein.