Extendable Ladder Guide Part Chassis Mounting
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Solution Overview
Problem
The handling of extension ladders in vehicles for transporting goods is cumbersome and unstable, especially when the ground is uneven, as the support for the guide part can be unsafe.
Innovation Solution
A freely suspended support system is introduced, where a projection on the guide part engages with a counter-element on the chassis, ensuring the guide part remains securely connected to the chassis even on uneven ground, allowing easy handling and reduced risk of jamming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the guide part is supported on a fixed support at the rear of the vehicle, then the structure is simple and easy to manufacture, but the stability is poor when the ground is uneven
Solution Approach 1:
The guide part is designed to pivot between a stored position and a deployed position, transitioning from a static support configuration to a dynamic, adaptable structure that can accommodate uneven ground conditions while maintaining stability
2Ease of operation
If the guide part protrudes far beyond the loading floor, then the access part can be fully extended, but the handling becomes cumbersome
Solution Approach 1:
The extension ladder is divided into a guide part and an access part that can be independently manipulated. The access part can be detached and set aside after deployment, allowing the guide part to be easily stored back in its compact position without cumbersome handling of the entire ladder structure
Data Source
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AI summary
The present invention relates to a vehicle for transporting goods with a chassis (C) comprising at least one component (Q) assigned to the rear (R) of the vehicle (A) and having a loading platform (B) on its upper side, on which the respective goods can be placed, wherein the chassis (C) additionally provides an extendable ladder (1) arranged below the loading platform (B), which is slidably mounted in a guide (F) also supported by the chassis (C) in order to move the extendable ladder (1) from a storage position, in which it is located below the loading platform (B), into a working position in which it is folded towards the ground (U) on which the vehicle (A) stands, in order to enable access to the loading platform (B), wherein the extendable ladder (1) is divided into an access section (2) having a guide section (3) and a rung (7),of which the guide part (3) is slidably mounted on the guide (F) and the climbing part (2) is slidably mounted on the guide part (3), and wherein a pivot bearing for pivoting the climbing part (2) into its operating position is formed on the guide part (3) in the region of the end section in which the end of the climbing part (2) associated with the guide part (3) is located when the climbing part (2) has reached its maximum extension position in the guide part (3). In the vehicle according to the invention, the extendable ladder is easier to handle and at the same time ensures improved stability. This is achieved by providing a shaped element (18, 19) on the guide part (3) which engages with a counter element formed on the component (Q) when the guide part (3) has reached its extension position in the guide (F).so that, in addition to its support in the guide (F), the guide element (3) hangs on the component (Q) when the ascent element (2) is pivoted into the operating position.