Trolley Tilting Device for Foldable Tool Support

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Solution Overview

Problem

Existing rolling stock equipment for hand tools connected to vacuum cleaners faces challenges in accessibility and bulkiness, particularly with the tilting device occupying volume when not in use, which complicates storage and maneuverability.

Innovation Solution

A tilting device is integrated into the rolling structure, allowing the arm tool support to pivot horizontally and fold, reducing bulk and enabling easy access to the vacuum cleaner unit, with a base secured to the trolley and a mast receiving the support device for articulation, featuring a guide pin and tilting lever for adjustable positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a tilting device is added to allow articulation of the arm tool support, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improvearticulation of arm tool supportVSAvoidstructure of rolling stock equipment
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The tilting device is nested within the rolling stock equipment structure, with the tilting lever integrated into the base and the arm tool support nested within the mast. This allows the articulation function to be achieved while maintaining a compact overall structure and avoiding excessive complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The tilting device is segmented into distinct functional components: a base secured to the trolley, a mast receiving the support device, and a tilting lever with guide pin. This segmentation allows each component to perform its specific function independently, simplifying the overall design and maintenance while improving ease of operation.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If the tilting device remains in place when not in use, then stability is improved, but volume occupied increases

Engineering Contradiction:
Improvepositioning of tilting deviceVSAvoidbulk volume above suction unit
Core Design Contradiction:
Stability of the object's compositionVSVolume of stationary object

Solution Approach 1:

The tilting device is designed to be dynamic rather than static when not in use. The tilting lever can be positioned at different angles and locked into place using the guide pin and slot mechanism, allowing the structure to adapt its volume occupation based on operational needs while maintaining stability during storage.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the support device is removably fixed on the mast, then ease of operation is improved, but reliability decreases

Engineering Contradiction:
Improveinstallation and removal of hand toolVSAvoidconnection between support device and mast
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The connection mechanism between the support device and mast is designed to be self-servicing. The guide pin automatically engages with the slot in the tilting lever, and the support device can be easily inserted and removed without requiring additional tools or complex assembly procedures, maintaining both ease of operation and reliable connection.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2572828B1Mobile structure for a tool supported on a pivoting arm
Publication Date: 2014.04.02 MBH DEVELOPPEMENT SARL
  • EP2572828B1 patent drawingFigure 1
  • EP2572828B1 patent drawingFigure 2
  • EP2572828B1 patent drawingFigure 3

AI summary

The wheeled structure has a trolley provided with an upper platform forming a service platform. A long arm tool support device (4) is positioned and centered on a pole connected to service platform. A tilt device (D) is arranged with a base secured to service platform. A base is provided with a rear heel for accommodation and articulation of a toggle lever. An upper portion of pole (5) is arranged to accommodate a guide pin (12) engaging with upper end portion of toggle lever. The pole is arranged to accommodate a column for accommodation of the long arm tool support device.