Folding Ladder Nested in Vehicle Step Storage Volume
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Solution Overview
Problem
Existing vehicle step systems are space-intensive due to the external placement of ladders, which limits their versatility and requires additional storage space when not in use, increasing the risk of damage and reducing user safety.
Innovation Solution
A space-saving step system design where the ladder is integrated into the stair step, allowing it to be stored within the step system and easily deployed as a folding ladder with articulated arrangements, providing a stable and enlarged tread surface even when traditional steps are inaccessible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the ladder is arranged outside the step system, then the ladder is easily accessible, but the step system requires a lot of space and increases device complexity
Solution Approach 1:
The ladder is integrated into the step system by placing it inside a storage compartment formed by the stair steps. The ladder can be stored within the structure when not in use, eliminating the need for external placement while maintaining accessibility when needed.
Solution Approach 2:
The step system serves multiple functions: it provides both the primary staircase for vehicle access and houses the ladder for emergency or alternative access scenarios. This multi-functionality eliminates the need for separate external ladder mounting.
2Volume of stationary object
If the ladder is integrated into the stair step, then storage space is reduced, but the ladder becomes vulnerable to damage during storage
Solution Approach 1:
The ladder is stored within a dedicated compartment formed by the stair steps, which provides protection from external damage. The compartment structure shields the ladder from impact and environmental factors while maintaining space efficiency.
Solution Approach 2:
The storage compartment design includes protective features that cushion the ladder against damage during storage and handling, preventing harm before it can occur.
3Device complexity
If the ladder is stored within the step system, then device complexity is reduced, but accessibility and ease of deployment are worsened
Solution Approach 1:
The step system is segmented into functional modules, with the ladder as a separate可拆卸 component. This allows the ladder to be easily removed and deployed independently while maintaining a simple integrated structure when stored.
Solution Approach 2:
The ladder transitions from a static stored position within the compartment to a dynamic deployed position where it can be used independently. This dynamic capability maintains ease of operation while preserving structural simplicity.
Data Source
Figure 1
Figure 2
AI summary
A step system (1) for a vehicle, in particular for a camping or leisure vehicle, is proposed, wherein the step system (1) comprises a staircase (2) with at least one step (3, 7) and a ladder (4) with a tread (6) and at least one rung (17), wherein the at least one step (3, 7) comprises a tread (8) and wherein the at least one step (3, 7) forms a storage volume (5), wherein the ladder (4) is designed as a folding ladder and is arranged in a rest position in the storage volume (5) of the step (3, 7).