Perforated Sheet Path Lashing Abutment Device
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Solution Overview
Problem
Conventional perforated metal plates used for load securing in vehicle transport are not adequately designed to absorb lashing forces perpendicularly and transversely, leading to insufficient security and potential tearing at attachment points, which fails to meet current legal requirements and reduces effective lashing forces.
Innovation Solution
A perforated plate with a lashing abutment device arranged below the load surface, featuring receiving means such as oval-shaped recesses for guiding lashing means, which absorbs forces acting at right angles, optimizing bending stiffness and material selection to distribute forces effectively, while the perforated plate focuses on providing sliding friction and weight-bearing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional perforated plates are used for load securing, then the plate weight is reduced due to hole pattern, but the plate cannot adequately absorb lashing forces perpendicular to the load surface
Solution Approach 1:
The load-bearing function is segmented between the perforated plate (providing friction and lateral stability) and the lashing abutment device (providing perpendicular force absorption). This segmentation allows each component to be optimized for its specific function without compromising the other.
Solution Approach 2:
The lashing abutment device acts as an intermediary component between the lashing means and the perforated plate. It transfers and absorbs the perpendicular lashing forces, preventing these forces from being transmitted to the perforated plate structure.
2Ease of operation
If hooks are attached directly to holes in the perforated sheet metal track, then attachment is simple, but the perforated plate tears at attachment points due to insufficient force absorption
Solution Approach 1:
The lashing abutment device with its receiving means serves as an intermediary that maintains the simple attachment process while fundamentally improving the force absorption capability. The receiving means are specifically designed to withstand perpendicular forces without compromising the perforated plate.
Solution Approach 2:
The solution moves the force absorption function from the two-dimensional plane of the perforated plate to a three-dimensional structure below the load surface. The lashing abutment device extends perpendicular to the plate, providing force absorption in the vertical dimension without interfering with the plate's lateral functions.
3Reliability
If the perforated plate is designed to absorb lashing forces, then load securing reliability improves, but the plate requires heavier material to provide sufficient load-bearing capacity
Solution Approach 1:
The functional segmentation separates the weight-bearing role (perforated plate) from the force-absorbing role (lashing abutment device). This allows the perforated plate to remain lightweight while the lashing abutment device, positioned strategically, provides the necessary strength for force absorption.
Solution Approach 2:
The lashing abutment device provides localized strength and force absorption capability at specific attachment points below the load surface. This localized reinforcement achieves the necessary reliability without requiring the entire perforated plate to be made of heavier material.
Data Source
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AI summary
In order to specify a perforated sheet (1), preferably for semi-trailers, trailers and/or motor vehicles, in particular for vehicle transport, with a loading platform (2) onto which a load (3) can be placed, a motor vehicle for vehicle transport, and a load securing set, which enable improved load securing while circumventing the disadvantages of the prior art described above, it is proposed that the perforated sheet (1) be provided with at least one lashing support device (12) arranged below the loading platform (2) with receiving means (13) for receiving by lashing means (5, 6, 7, 8), in particular hooks (6, 7, 8) and/or lashing strap (5), generating forces acting perpendicular to the loading platform (2).