Pocket Wagon Carrying Device with Recessed Longitudinal Beam
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Solution Overview
Problem
The existing rail vehicles, specifically pocket cars, face challenges in loading cargo due to the protrusion of cross members into the loading area, which creates a disruptive contour and limits the usable space, making it difficult to efficiently load and unload large or irregularly shaped cargo without additional aids.
Innovation Solution
A liftable carrying device with a support frame featuring interconnected longitudinal beams and a drivable support that extends along these beams, incorporating gripping edges for lifting devices, and a design that allows the cross member to protrude into a recessed area of the longitudinal beam, enabling the adaptation of the transverse extent of the support to match the bag's dimensions, thus optimizing the loading space and allowing for direct access without aids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If cross members are added to reinforce the rail vehicle, then the structural strength is improved, but the protrusion into the pocket creates an interfering contour that reduces the usable loading space
Solution Approach 1:
The longitudinal beam is segmented into multiple sections, with at least one section featuring a reduced height (recess) that allows the cross member to be accommodated within the beam structure itself, eliminating the interfering contour while preserving structural reinforcement
Solution Approach 2:
The cross member is nested within the recessed section of the longitudinal beam, with the cross member positioned inside the hollow space created by the reduced-height section, thereby integrating the reinforcing element without protrusion into the loading area
2Length of stationary object
If the cross member protrudes into the pocket to reduce loading height, then the loading area height is improved, but the transverse extent of the pocket is reduced due to the interfering contour
Solution Approach 1:
The longitudinal beam is divided into sections with different heights, creating a recessed area that accommodates the cross member without reducing the overall loading area height or transverse extent of the pocket
3Ease of operation
If the carrying device width is reduced to avoid the cross member protrusion, then the ease of operation is improved, but the total space utilization in the pocket is reduced
Solution Approach 1:
The longitudinal beam is segmented with a recessed section that allows the cross member to be positioned within the beam structure, eliminating the interfering contour and allowing carrying devices to maintain their full width for optimal space utilization while preserving unobstructed access
Data Source
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AI summary
An arrangement comprising a liftable support device (1) for loading a rail vehicle (2) with cargo (3) by means of a lifting device and a rail vehicle (3) in the form of a pocket wagon with a pocket (14) for at least partially receiving the support device (1), wherein the support device (1) has a support frame (8) with at least two interconnected longitudinal beams (4) and a drivable support (10) for the cargo (3) extending along and between the at least two longitudinal beams (4), wherein at least two gripping edges (5) for the lifting device are arranged on each of the at least two longitudinal beams (4), and wherein the rail vehicle (2) has at least one crossbeam (22) extending transversely to a longitudinal extension of the pocket (14) and projecting at least partially into the pocket, wherein at least one of the longitudinal beams (4) has a clearance (12).in which, with the support device (1) arranged in the pocket (14), at least a part of the at least one crossbeam (22) projects into it.