Load Carrier Recessed Brake Lever for Non-Protruding Caster Access

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Solution Overview

Problem

Existing load carriers, particularly quarter pallets, face challenges in providing comfortable and accessible operation of steerable casters, often resulting in levers protruding outward and interfering with other objects, and require improvements for efficient integration into existing logistics systems.

Innovation Solution

The load carrier features a recess above the lever on the deck edge, allowing easy access and visibility, with the steerable roller positioned inwardly to avoid protrusion, and is designed to fit standard dimensions for seamless integration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the lever is made longer to improve accessibility, then the lever becomes easier to reach and operate, but it protrudes outward beyond the envelope contour and interferes with other objects

Engineering Contradiction:
Improvelever accessibilityVSAvoidinterference with other objects
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a new spatial dimension by creating a recess in the deck that accommodates the lever. This recess allows the lever to be positioned in a different spatial plane, enabling it to extend further for better accessibility while remaining contained within the overall envelope contour of the load carrier, thus avoiding interference with other objects.

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

Solution Approach 2:

The lever is nested within a recess structure in the deck. The recess acts as a housing that contains the lever, allowing the lever to extend outward for operation while being recessed into the deck body. This nesting arrangement enables the lever to be accessible without protruding beyond the load carrier's external contours.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Stability of the object's composition

If the steerable roller is positioned in the corner region to optimize stability, then the load carrier achieves better stability, but the lever protrudes outward beyond the envelope contour and causes interference

Engineering Contradiction:
Improveload carrier stabilityVSAvoidlever interference
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The steerable roller with its lever is nested within a recess in the deck at the corner region. This nesting allows the roller to be positioned at the corner for stability while the lever, being recessed, does not protrude beyond the envelope contour and interfere with other objects.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The deck is given a different local quality at the corner region where a recess is created. This localized structural modification allows the lever to be accommodated in a specific area without affecting the overall stability provided by the corner positioning of the steerable roller.

Inventive Principle:
Principle #3Local quality

3Object-affected harmful factors

If the lever is made shorter to avoid protrusion, then interference with other objects is reduced, but accessibility and visibility of the lever deteriorates

Engineering Contradiction:
Improveinterference avoidanceVSAvoidlever accessibility
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

Instead of changing the lever length, the patent changes the spatial arrangement by creating a recess that allows the lever to be positioned in a different dimension. This enables the lever to maintain its optimal length for both accessibility and interference avoidance through proper spatial positioning rather than length adjustment.

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

Data Source

PatentEP4101731B1Load carrier
Publication Date: 2025.07.09 IPP GMBH
  • EP4101731B1 patent drawingFigure 1~2
  • EP4101731B1 patent drawingFigure 3~4
  • EP4101731B1 patent drawingFigure 5~6

AI summary

The invention relates, among other things, to a load carrier (10) for transporting and/or storing goods, in particular in the form of a dolly, comprising a deck (11) made of plastic, on the upper surface (12) of which a support surface (13) for the goods or for a device for receiving the goods is provided, and on the underside (13) of which a plurality of rollers (16a, 16b, 16c, 16d) are arranged, wherein at least one roller (16b) comprises a lever (18) which is designed in the manner of a brake or locking lever and can be operated by foot. A special feature is, among other things, that the deck (11) includes a recess (21) arranged above the lever (18) at its edge, which provides access to the lever (18).