Foldable RV Leveling Block With Traction Board Function

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Solution Overview

Problem

Existing leveling blocks for recreational vehicles (RVs) offer limited height adjustment and lack multifunctionality, often failing to provide sufficient stability on uneven terrains and requiring separate traction aids, leading to user dissatisfaction and increased costs.

Innovation Solution

A foldable base mobile home leveling block system with integrated traction board functionality, featuring a foldable base unit that extends leveling height and serves as a traction aid, combining leveling and traction utilities into a single product with a trapezoid interlocking mechanism for stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional leveling blocks are used, then basic leveling function is provided, but height adjustment is limited and multifunctionality is lacking

Engineering Contradiction:
Improveleveling height adjustment and functionalityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The leveling block is divided into multiple segments including a base layer, intermediate layer with foldable flaps, and top layer. This segmentation allows the block to achieve variable heights by folding or extending the intermediate layer, providing height adjustment from 2 inches to 6 inches while maintaining a compact form when not in use.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The leveling block incorporates multiple functions into a single device: it provides leveling support through its primary structure, offers traction assistance through textured surfaces on the flaps, and enables height adjustment through the foldable intermediate layer. This multi-functionality eliminates the need for separate traction devices while maintaining structural integrity.

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

2Reliability

If maximum leveling height is increased to accommodate uneven terrains, then stability on uneven ground is improved, but device portability and storage become challenging

Engineering Contradiction:
Improvestability on uneven terrainVSAvoidportability
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The intermediate layer of the leveling block is designed to be foldable rather than fixed, allowing the structure to dynamically adjust its height. When deployed, the flaps extend to provide maximum height for uneven terrain compensation. When not in use, the flaps fold back against the main body, creating a compact package that is easy to transport and store in RV storage compartments.

Inventive Principle:
Principle #15Dynamics

3Reliability

If separate traction aids are purchased to address slippery surfaces, then traction capability is improved, but cost and storage requirements increase

Engineering Contradiction:
Improvetraction on slippery surfacesVSAvoidnumber of devices required
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The traction function is merged into the leveling block structure itself. The foldable flaps are equipped with textured surfaces that provide enhanced friction and grip on slippery surfaces such as sand, gravel, or wet ground. This integration eliminates the need for separate traction boards or aids, reducing the total number of devices required while maintaining both leveling and traction capabilities in a single unit.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4678590A1Foldable base mobile home leveling blocks with integrated traction board functionality
Publication Date: 2026.01.14 SATTLER THOMAS
  • EP4678590A1 patent drawingFigure 1
  • EP4678590A1 patent drawingFigure 2
  • EP4678590A1 patent drawingFigure 3

AI summary

The invention discloses an advanced leveling block system for mobile homes and caravans, incorporating a foldable base to extend leveling capabilities and multifunctional use. Traditional leveling blocks are limited to a maximum height of approximately 10 cm, often inadequate for proper vehicle leveling. This novel system introduces a foldable base unit that offers four distinct configurations: (1) leveling up to a basic industry level using the upper block alone, (2) leveling up to raised height with the upper block on the unfolded base, (3) leveling up to maximum height with the upper block on the folded base, and (4) employing the base as a Traction board to enhance traction on slippery surfaces such as mud or sand. The foldable base not only increases the maximum leveling height but also provides essential support in adverse ground conditions, ensuring optimal stability and safety. This innovative design addresses the limitations of existing products, providing a comprehensive solution for leveling and ground traction challenges faced by mobile home and caravan users.