Spreader Liquid Tank Inclined Sliding Surface

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Solution Overview

Problem

Existing winter service vehicle spreaders have limited variability and inefficient volume utilization due to the need for additional tanks for liquid brine, which are not suitable for solid spreading materials and require a funnel-shaped container for complete emptying.

Innovation Solution

A spreader design featuring a spreading-material container with a horizontal floor surface and a liquid tank that forms an inclined sliding surface, allowing for variable volume utilization by filling and emptying the liquid tank, enabling optimal use of the container volume for different spreading methods without external tanks or complex piping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If additional tanks are firmly installed outside the spreading-material container for liquid brine, then the system can perform wet-salt spreading and pure brine spreading, but the volume utilization is inefficient and the device complexity increases

Engineering Contradiction:
Improvespreading method variabilityVSAvoidcontainer volume utilization
Core Design Contradiction:
Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The liquid tank is inserted into the spreading-material container, with the liquid tank (containing brine) nested within the container for solid spreading materials. This nesting arrangement allows the liquid tank to occupy only the space needed for brine storage while the remaining space in the spreading-material container is fully available for solid materials, achieving efficient volume utilization while maintaining the capability for multiple spreading methods.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The spreading-material container serves multiple functions: it stores solid spreading materials and simultaneously accommodates the liquid tank for brine storage. This multi-functional design eliminates the need for separate external tanks, reducing device complexity while maintaining versatility for dry-salt spreading, wet-salt spreading, and pure brine spreading operations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If a funnel-shaped spreading-material container is used for complete emptying, then solid spreading materials can slide by gravity onto the conveying device, but the volume of the spreading-material container is limited

Engineering Contradiction:
Improvecontainer emptyingVSAvoidspreading-material container volume
Core Design Contradiction:
Ease of operationVSVolume of stationary object

Solution Approach 1:

The liquid tank acts as an intermediary element that forms a sliding surface between the horizontal floor of the spreading-material container and the conveying device. When the liquid tank is filled, it creates an inclined surface that enables solid spreading materials to slide by gravity onto the conveying device, achieving complete emptying without requiring the container itself to be funnel-shaped, thus maximizing container volume.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If external additional tanks are removed, then the device complexity is reduced, but the ability to perform wet-salt spreading and pure brine spreading is lost

Engineering Contradiction:
Improvetank configurationVSAvoidspreading method capability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The spreading-material container is designed to serve multiple functions: it stores solid spreading materials and simultaneously accommodates the liquid tank for brine storage. This multi-functional design eliminates the need for separate external tanks, reducing device complexity while maintaining versatility for dry-salt spreading, wet-salt spreading, and pure brine spreading operations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The liquid tank is inserted into the spreading-material container, creating a nested configuration where the liquid tank occupies only the space needed for brine storage while the remaining space in the spreading-material container is fully available for solid materials. This nested arrangement maintains the capability for multiple spreading methods while simplifying the overall device structure.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

This design allows for complete emptying of the container, increased capacity for solid spreading materials, and efficient use of space, reducing manufacturing costs and simplifying the system by eliminating the need for external tanks and complex piping, while maintaining flexibility for different spreading methods.

Implementation Method 1

a liquid tank (10) for insertion into the spreading-material container (3) so as to form, upon an at least partial filling of the liquid tank (10), a sliding surface for the solid spreading materials to be spread out that is inclined toward the conveying device

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentUS10138609B2Container for spreader material and a liquid tank
Publication Date: 2018.11.27 KUPPER WEISSER
  • US10138609B2 patent drawing
  • US10138609B2 patent drawing
  • US10138609B2 patent drawing

AI summary

A spreader, in particular for winter service vehicles, for spreading out solid spreading materials includes a spreading-material container for receiving the solid spreading materials to be spread out, and at least one liquid tank arranged within the spreading-material container and having an at least partly flexible sheath and variable volume for receiving liquid. The spreader furthermore comprises a conveying device in a floor surface of the spreading-material container for conveying the spreading materials out of the spreading-material container. The floor surface of the spreading-material container is horizontal or almost horizontal, with the at least one liquid tank being arranged on or above the floor surface such that, upon an at least partial filling of the liquid tank, there is formed a sliding surface for the solid spreading materials to be spread out that is inclined toward the conveying device relative to the floor surface.