Method for transporting cargo using a semi-trailer truck
The semi-trailer with a stepped floor design enhances cargo capacity in road trains, addressing insufficient capacity and permit issues, achieving efficient and cost-effective transportation.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2026-04-02
AI Technical Summary
Existing cargo transportation methods using road trains are limited by insufficient cargo capacity and require special permits for oversized vehicles, leading to high labor and time costs.
A method utilizing a semi-trailer with a stepped floor, allowing for increased cargo capacity without exceeding permissible dimensions, by using a road train with a truck tractor and semi-trailer, where the arc of the outer boundary of structural elements coincides with the beginning of the lower loading platform, ensuring efficient use of space without needing special permits.
The method significantly increases cargo capacity in road trains, reducing the need for special permits and lowering logistics costs by optimizing space utilization and adhering to safety and traffic regulations.
Smart Images

Figure RU2025050267_02042026_PF_FP_ABST
Abstract
Description
[0001] METHOD OF CARGO TRANSPORTATION BY A ROAD TRAIN
[0002] DESCRIPTION OF THE INVENTION
[0003] The invention relates to the field of transportation, in particular to methods of transporting goods using a road train.
[0004] The prior art discloses a MOTOR TRANSPORT COMPLEX FOR TRANSPORTING LOADS [RU 2163550 C2, published: 27.02.2001], which contains a fleet of rolling stock primarily of trucks of varying carrying capacity, maintenance and repair sections connected by operational computer communications, wherein the fleet of rolling stock contains trucks of large (over 12 t), medium (3.5 - 12 t) and small (less than 3.5 t) carrying capacity.
[0005] The disadvantage of using this analogue is the insufficient cargo capacity.
[0006] Another analogue is the METHOD OF TRANSPORTING LOADS [RU 2005100299 A, published: 20.06.2006], which includes the assembly of a vehicle from cargo platforms, its movement with simultaneous clearing of the path, while the assembly is carried out with the condition of increasing the curb weight of the platforms from the leading to the tail ones, clearing the path is carried out by cutting off the protrusions of the road, leaving the level sections of the road untouched and subsequent compaction of the loosened snow-ice mass.
[0007] The disadvantage of this method is the high labor and time costs of transporting goods.
[0008] The closest technical solution (prototype) is the METHOD OF CARGO TRANSPORTATION BY ROAD TRAIN [https: / / logistologia.ru / perevozka-avtopoezdom], characterized by the fact that during its implementation, a road train is selected depending on the overall dimensions of the cargo, a semi-trailer is filled with cargo, the cargo is secured, the cargo is transported to the destination and the cargo is unloaded, while in order to avoid exceeding the permissible overall dimensions of the road train, first of all, road trains are used for the transportation of cargo, containing a truck tractor and a semi-trailer, which, when loaded, do not exceed the overall dimensions of the length of 20 m, the width of 2.55 m, and the height of 4 m.
[0009] A drawback of the closest technical solution (prototype) is that it requires the use of road trains with insufficient cargo capacity, provided that the maximum permissible dimensions are not exceeded. The objective of the claimed invention is to eliminate the deficiencies of similar solutions and the prototype by creating a method for transporting cargo using a semi-trailer with increased capacity, without requiring a special permit for the passage of oversized vehicles.
[0010] The technical result of the invention consists in increasing the capacity of transported goods in a road train, which does not require a special permit for the passage of large-sized vehicles.
[0011] The said technical result is achieved by the fact that when implementing the method of transporting goods by a truck-mounted road train, a road train is selected that contains a truck tractor and a semi-trailer with a stepped floor containing upper and lower loading platforms, filling the upper and / or lower loading platforms of the semi-trailer with cargo to a volume that ensures the exclusion of exceeding the permissible overall dimensions of the road train, securing the cargo, transporting the cargo to the destination without requiring a special permit for the passage of large-sized vehicles, and unloading the cargo, in this case, as a semi-trailer with a stepped floor, a semi-trailer is used in which the arc of a circle "B" with an apex at point "D" and with a chord equal to 2550 mm is the outer boundary of the location of the structural elements and attachments of the semi-trailer, coincides with the beginning of the lower loading platform, point "G", located at the intersection of axes "A" and "B".
[0012] In particular, the distance between the apex of the circular arc of the outer boundary of the arrangement of the structural elements and attachments of the semitrailer and the beginning of the lower loading platform is no more than 100 mm, measured between point "G" located at the intersection of axes "A" and "B" and apex "D" of arc "B". The proposed invention is illustrated by the figures: Fig. 1 shows a top view of a tractor with a semitrailer. Fig. 2 shows a side view of a tractor with a semitrailer. The following is indicated in Fig.
[0013] 1 - tractor; 2 - semitrailer; 3 - upper loading platform; 4 - lower loading platform; 5 - fifth wheel coupling; 6 - kingpin; A - horizontal axis passing through the center of the kingpin, at the level of the loading height of the lower loading platform, parallel to the direction of travel of the semitrailer; B - horizontal axis passing along the inner boundary of the beginning of the lower loading platform, perpendicular to the direction of travel; B - arc of the outer boundary of the location of structural elements and attachments of the semitrailer, intersecting with its vertex axis A; G - the beginning point of the lower loading platform, located at the intersection of axes A and B; D - the vertex of arc B.
[0014] The declared method of transporting goods by a road train is carried out as follows:
[0015] - selection of a road train for cargo transportation;
[0016] - selection of a semi-trailer;
[0017] - loading the upper and / or lower loading platforms of the semi-trailer with cargo to a volume that ensures that the permissible overall dimensions of the road train are not exceeded;
[0018] - cargo securing;
[0019] - transportation of cargo to the destination;
[0020] - unloading of cargo.
[0021] When selecting a road train consisting of a tractor 1 and a semitrailer 2 containing an upper loading platform 3 and a lower loading platform 4 (Fig. 1, Fig. 2), the semitrailer 2 is used as a semitrailer with a stepped floor, in which, at the level of axis "A", the vertex "D" of the arc of a circle "B" with a chord equal to 2550 mm coincides with the beginning of the lower loading platform, point "G", located at the intersection of axes "A" and "B". This technical solution ensures a significant increase in the capacity of the transported goods in the road train, without the need for a special permit for the passage of large-sized vehicles, due to the fact that the maximum possible space of semitrailer 2 is used to accommodate the goods.
[0022] The distance between the apex of the circular arc of the outer boundary of the semitrailer's structural elements and attachments and the beginning of the lower loading platform is no more than 100 mm, measured between point "G," located at the intersection of axes "A" and "B," and apex "D" of arc "B." This technical solution allows for the selection of a tractor unit 1 and a semitrailer.
[0023] 2 in a wider range, taking into account route conditions and cargo dimensions, which further increases the capacity of the transported goods in a road train, which does not require a special permit for the passage of large-sized vehicles.
[0024] Tractor unit 1 is selected with the smallest possible rear swing radius and the smallest possible fifth wheel height, taking into account route conditions for the safe transportation of cargo. This further influences the technical result, allowing for the selection of a tractor based on the required road conditions for cargo transportation. Semitrailer 2 is selected based on the technical characteristics of tractor unit 1, route conditions for the safe transportation of cargo, the required load capacity, and the overall dimensions of the cargo being transported, ensuring the transportation of oversized cargo without a special permit for oversized vehicles.
[0025] Cargo securing, transportation, and unloading are carried out in compliance with safety regulations, labor protection, and traffic regulations, ensuring safe transportation and cargo security, which further reduces logistics costs.
[0026] The first example of the implementation of the claimed method is the method of transporting goods by a truck-mounted road train, in which a load of 3000 mm in height, 2000 mm in width and 14000 mm in length was transported, while the mass of the load was 38 tons, along the route: Moscow (Russian Federation) - Aktobe (Republic of Kazakhstan).
[0027] The transportation was carried out by a road train consisting of a tractor unit 1 (Fig. 1, Fig.
[0028] 2) and a semi-trailer 2 with a stepped floor containing an upper loading platform 3 with a length of 2300 mm and a height of 2190 mm and a lower loading platform 4 with a length of 13800 mm and a height of 1550 mm. The radius of the arc "B" of the outer boundary of the location of the structural elements and attachments of the semi-trailer was 1900 mm, and the distance between the point "G" of the beginning of the lower loading platform 4 and the apex "D" of the arc "B" of the outer boundary of the location of the structural elements and attachments of the semi-trailer was 100 mm.
[0029] Thus, in this example of the application of the claimed method of transporting cargo by a truck-mounted road train, the cargo capacity increased by 7% in comparison with the road train used in the prototype, due to the reduction of the distance between the beginning of the lower loading platform 4 and the apex “D” of the arc “B” of the outer boundary of the location of the structural elements and attachments of the semitrailer, which made it possible to more effectively use the overall dimensions of the semitrailer 2 without the need to obtain a special permit for the passage of large-sized vehicles.
[0030] The second example of implementation is the method of transporting goods by a truck-mounted road train, in which a load of 2800 mm in height, 2300 mm in width and 12200 mm in length was transported, while the mass of the load was 45 tons, along the route: Kazan (Russian Federation) - Yekaterinburg (Russian Federation).
[0031] The transportation was carried out by a road train consisting of a tractor unit 1 and a semi-trailer
[0032] 2 (Fig. 1, Fig. 2) with a stepped floor containing an upper loading platform
[0033] 3, 3200 mm long, 2100 mm high, and a lower loading platform 4, 12240 mm long, 1580 mm high. The radius of arc "B" of the outer boundary of the arrangement of structural elements and attachments of the semitrailer was 2100 mm, and the distance between point "G" of the beginning of lower loading platform 4 and the apex "D" of arc "B" of the outer boundary of the arrangement of structural elements and attachments of the semitrailer was 60 mm.
[0034] Thus, in this example of the application of the claimed method of transporting cargo by a truck-mounted road train, the cargo capacity increased by 10% in comparison with the road train used in the prototype, due to the reduction of the distance between the beginning of the lower loading platform 4 and the apex “D” of the arc “B” of the outer boundary of the location of the structural elements and attachments of the semitrailer, which made it possible to more effectively use the overall dimensions of the semitrailer 2 without the need to obtain a special permit for the passage of large-sized vehicles.
[0035] The third example of implementation is the method of transporting goods by a road train, in which the transport of goods with a height of 3100 mm, a width of 2100 mm and a length of 17000 mm was carried out, while the mass of the goods was 50 tons, along the route: Kurgan (Russia) - Urumqi (China).
[0036] The transportation was carried out by a road train consisting of a tractor unit 1 and a semi-trailer
[0037] 2 (Fig. 1, Fig. 2) with a stepped floor containing an upper loading platform
[0038] 3 with a length of 6000 mm and a height of 2050 mm and a lower loading platform 4 with a length of 12180 mm and a height of 1545 mm. The radius of arc "B" of the outer boundary of the arrangement of structural elements and attachments of the semitrailer was 2400 mm, and the distance between point "G" of the beginning of lower loading platform 4 and the apex "D" of arc "B" of the outer boundary of the arrangement of structural elements and attachments of the semitrailer was 20 mm.
[0039] Thus, in this example of the application of the claimed method of transporting cargo by a truck-mounted road train, the cargo capacity increased by 15% in comparison with the road train used in the prototype, due to the reduction of the distance between the beginning of the lower loading platform 4 and the apex “D” of the arc “B” of the outer boundary of the location of the structural elements and attachments of the semitrailer, which made it possible to more effectively use the overall dimensions of the semitrailer 2 without the need to obtain a special permit for the passage of large-sized vehicles.
[0040] Thus, the declared method of transporting goods by a road train, due to the technologies used in it, the combination of their characteristics and interrelations, ensures an increase in the capacity of the goods transported in the road train without requiring a special permit for the passage of large-sized vehicles, further reducing the economic costs of logistics.
Claims
The AMENDED CLAUSE OF THE INVENTION was received by the International Bureau on March 16, 2026 (03 / 16 / 2026) CLAUSES OF THE INVENTION (as amended by Article 19 of the Patent Cooperation Treaty (PCT)) 1. A method for transporting cargo by a truck-mounted road train, characterized by the fact that during its implementation, a road train is selected that contains a truck tractor and a semi-trailer with a stepped floor containing upper and lower loading platforms, filling the upper and / or lower loading platforms of the semi-trailer with cargo to a volume that ensures that the permissible overall dimensions of the road train are not exceeded, securing the cargo, transporting the cargo to the destination without requiring a special permit for the passage of large-sized vehicles, and unloading the cargo, characterized in that the semi-trailer with a stepped floor is a semi-trailer in which the arc of a circle "B" with an apex at point "D" with a chord equal to 2550 mm, which is the outer boundary of the location of the structural elements and attachments of the semi-trailer, is at a distance of no more than 100 mm from point "G" of the beginning of the lower loading platform, located at the intersection of the horizontal axis "A",passing through the center of the kingpin at the level of the loading height of the lower loading platform, parallel to the direction of movement of the semitrailer and the horizontal axis "B", passing along the inner border of the beginning of the lower loading platform, perpendicular to the direction of movement.
Citation Information
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