Rotating Truck Cabin Bunk for Safe Storage Access
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Solution Overview
Problem
Existing truck cabin bunks are expensive, complex to operate, and do not allow for versatile use, particularly when multiple bunks are required, as they occupy vertical space and lack safety features in accidents.
Innovation Solution
A bunk system in a truck cabin that rotates between horizontal and vertical positions, with cushioned upper faces for safety and dual-use as a backrest, using a frame with horizontal and vertical rails and connectors for smooth rotation, and a locking mechanism for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bunk is pivotally attached to the rear structure to allow access to the storage box, then the storage box is accessible, but the lower face of the bunk becomes a hard surface that can injure the driver in case of an accident
Solution Approach 1:
The patent inverts the traditional bunk attachment by making the bunk rotatable on a horizontal axis instead of pivoting on a vertical axis. This inversion changes the orientation of the bunk's faces during movement, ensuring that the cushioned upper face remains facing the driver while the hard lower face is positioned away from the driver, thus eliminating the injury risk while maintaining storage access
2Object-affected harmful factors
If the bunk is designed to be rotatable between horizontal and vertical positions, then safety is improved by providing a cushioned surface, but the device complexity increases
Solution Approach 1:
The bunk is designed with multi-functionality to justify the rotation mechanism complexity. It serves as both a sleeping surface when horizontal and a protective cushioning element when vertical. The same bunk structure performs dual functions, making the added mechanical complexity worthwhile for the significant safety improvement it provides to the driver
3Adaptability or versatility
If the bunk occupies vertical space when in vertical position, then it can be used as an upper bunk, but the space available for other cabin elements is reduced
Solution Approach 1:
The bunk's position is made dynamic rather than fixed. It can rotate between horizontal and vertical positions based on operational needs. When not needed as an upper bunk, it can be positioned horizontally to minimize vertical space occupation, allowing flexible adaptation to different cabin configurations and maximizing space availability for other elements
Data Source
AI summary
A truck cabin comprises a driver's seat, a bunk, and a frame, the frame comprising a rear structure delimiting the rear of the cabin along a longitudinal axis of the cabin. The bunk has the shape of a rectangular cuboid, with two parallel lateral faces, a front face, a rear face parallel to the front face, a lower face, and an upper face parallel to the lower face. The bunk is located between the driver's seat and the rear structure and extends along a transversal axis of the cabin, alongside the rear structure. The bunk is rotatable between a horizontal position, in which the upper face is horizontal and oriented upwardly, and a vertical position, in which the upper face is vertical. In the vertical position, the lower face of the bunk is oriented towards the rear structure and the upper face is oriented towards the driver's seat.


