Pallet Base Reinforcement with Detachable Skids

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Solution Overview

Problem

Existing pallet bases face challenges in ensuring safety during loading and storage, particularly in high-bay warehouses, where they are subjected to bending stress, and require cost-effective production methods while maintaining stability and ease of assembly.

Innovation Solution

The design incorporates skid parts made of plastic with fork openings for stable positioning and reinforcement, along with a detachable insert that can be made of metal or reinforced plastic, enhancing bending resistance and allowing for easy replacement, and a twin-sheet process for manufacturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the base plate is made thinner to reduce weight and cost, then manufacturing cost decreases, but bending resistance and structural strength deteriorate

Engineering Contradiction:
Improvemanufacturing costVSAvoidbending resistance
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The base plate combines plastic material with integrated insert parts made of different materials (metal, wood, or different plastic types) to create a composite structure. This allows the thin plastic base plate to gain enhanced bending resistance from the insert parts while maintaining low weight and manufacturing cost.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

Instead of making the entire base plate thicker, insert parts are strategically placed at specific locations where bending stress occurs (such as center and corner regions). This local reinforcement approach provides necessary strength only where needed, keeping the overall base plate thin and cost-effective.

Inventive Principle:
Principle #3Local quality

2Quantity of substance

If the base plate is made thinner to reduce material usage, then material cost decreases, but stability during storage in high-bay warehouses deteriorates

Engineering Contradiction:
Improvematerial usageVSAvoidstorage stability
Core Design Contradiction:
Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The thin plastic base plate is combined with rigid insert parts to create a composite structure that achieves sufficient bending stiffness and stability for high-bay warehouse storage without requiring excessive plastic material.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

Insert parts are positioned at critical locations (center and corners) to provide localized reinforcement that prevents deformation during storage, allowing the majority of the base plate to remain thin and material-efficient.

Inventive Principle:
Principle #3Local quality

3Ease of repair

If skid components are made detachable to facilitate repair and replacement, then ease of repair improves, but device complexity increases

Engineering Contradiction:
Improvereplacement simplicityVSAvoidassembly complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The base plate is segmented into modular components: the main plastic base plate, detachable insert parts, and skid components. Each can be independently replaced based on wear or damage, simplifying repair operations while maintaining a manageable overall structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection between skid components and the base plate is designed to be detachable rather than permanent, allowing the skids to be removed and reattached as needed. This dynamic connection facilitates easy replacement while the standardized interface keeps assembly complexity low.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3736223B1Pallet base for a transport container and transport container
Publication Date: 2022.05.04 SOHNER KUNST GMBH PRAZISIONSTHERMOFORMEN
  • EP3736223B1 patent drawingFigure 1
  • EP3736223B1 patent drawingFigure 2
  • EP3736223B1 patent drawingFigure 3

AI summary

The invention relates to a pallet base (2) for a transport container (1) comprising a base plate manufactured from a thermoformable plastic material using a twin-sheet process and consisting of at least two shells with an inner shell and an outer shell, and an insert provided for reinforcing the base plate, as well as several foot sections detachably attached to an underside of the base plate. According to the invention, at least two foot sections are provided, each in the form of a skid made of plastic, which has a contact surface extending over the length of the underside and at least one fork opening for inserting a fork tine.A transport container according to the invention comprises such a pallet base (2) and a folding wall ring (3) that surrounds the pallet base in a ring shape, which is manufactured from a deep-drawable plastic material using a twinsheet process and is constructed with at least two shells, an inner shell and an outer shell.