DE-202026101492-U1 - Container with corner fitting for attaching a saddle structure

DE202026101492U1DE 202026101492 U1DE202026101492 U1DE 202026101492U1DE-202026101492-U1

Abstract

Containers, especially for the transport of liquids or gases, with a frame (1) and corner fittings (2) arranged at the corners of the frame, wherein at least one of the corner fittings (2) has a flat attachment surface (3) which runs obliquely to the vertical and/or horizontal of the frame (1) and is designed for attaching a saddle plate or saddle structure, wherein the saddle plate or saddle structure in conjunction with the corner fitting (2) serves to connect the container to other components of the container, and wherein the attachment surface (3) has at least a conical transition surface at its edges which allows a flexible angular position of the saddle plate and ensures a smooth force transmission.

Assignees

WAGGONBAU GRAAFF GMBH

Dates

Publication Date: 20260513
Application Date: 20260317
Priority Date: 20260317

Claims (15)

Container, in particular for the transport of liquids or gases, with a frame (1) and corner fittings (2) arranged at the corners of the frame, whereby at least one of the corner fittings (2) has a flat attachment surface (3) which runs obliquely to the vertical and/or horizontal of the frame (1) and is designed for attaching a saddle plate or saddle structure, whereby the saddle plate or saddle structure, in conjunction with the corner fitting (2), serves to connect the container to other components of the container, and wherein the attachment surface (3) has at least a conical transition surface at its edges which allows for flexible angular positioning of the saddle plate and ensures smooth force transmission.
Containers to Claim 1 , characterized in that the inclined attachment surface (3) has an inclination in the range of 30° to 60° relative to the vertical or horizontal.
Containers to Claim 1 or 2 , characterized in that the attachment surface (3) has a planar, flat structure which is fully integrated into the corner fitting (2).
Container according to one of the preceding claims, characterized in that the conical transition surface at the edges of the attachment surface (3) has a gradient conicity of 5° to 30° to allow a more flexible adjustment of the angular position of the saddle plate.
Container according to one of the preceding claims, characterized in that the saddle plate or saddle structure is connected to the corner fitting (2) by welds.
Container according to one of the preceding claims, characterized in that the attachment surface (3) on the corner fittings (2) has laterally and topally extended connection surfaces which reinforce the connection to the saddle structure.
Container according to one of the preceding claims, characterized in that the corner fittings (2) are made of high-strength cast steel.
Container according to one of the preceding claims, characterized in that the saddle structure is additionally equipped with a reinforcement plate that distributes the load evenly.
Container according to one of the preceding claims, characterized in that the corner fittings (2) are arranged in a symmetrical design, so that a mirror-image geometry of the corner area is enabled.
Container according to one of the preceding claims, characterized in that the frame (1) of the container has reinforced areas which are specifically designed for load transfer via the corner fittings (2).
Container according to one of the preceding claims, characterized in that the attachment surface (3) is made of high-strength steel or a corrosion-resistant material.
Container according to one of the preceding claims, characterized in that the attachment surface (3) is provided with a damping layer which absorbs the shocks and vibrations caused by transport in order to reduce the load on the corner fitting (2) and other components.
Container according to one of the preceding claims, characterized in that the corner fittings (2) are modularly expandable to accommodate different transport loads or container types, wherein the expansion is effected by screwed or pluggable modules.
Container according to one of the preceding claims, characterized in that the corner fittings (2) are provided with a shape-optimized surface.
Container according to one of the preceding claims, characterized in that the corner fittings (2) have a corrosion-protective coating.

Description

The invention relates to a container, in particular a tank container for transporting liquids or gases, with a frame and corner fittings arranged at the corners of the frame, via which the container can be connected to other components. Corner fittings are highly stressed, standardized interface components located at the corners of ISO containers. Their primary function is to enable the lifting, stacking, and securing/locking of containers with handling and securing devices. To achieve this, the corner fittings (particularly via defined apertures/openings) must ensure compatibility when switching between different modes of transport. Therefore, their position, size, and configuration are standardized for handling and securing devices. Corner fittings are also used in tank containers. Tank containers are containers that combine a pressure vessel/tank and a frame into an intermodally transportable unit. Tank containers can be used for liquids, gases, and pressurized dry bulk goods and can be transported by road, rail, and sea. The frame/interface architecture requires that all tank containers have upper and lower corner fittings and that tank containers (at least in defined designs) must be able to be set down/supported via their lower corner fittings. Corner fittings are therefore not only handling interfaces, but also structural load path nodes. During transport and handling, significant forces are introduced or dissipated via the corner fittings (e.g., locking via twistlocks on ships, trailers or railcars). Especially with modular railway superstructures, load cases can occur that significantly exceed those intended for standardized ISO containers. Such modular superstructures can reach weights that considerably surpass the typical loads for ISO containers. This results in increased mechanical stresses in the area of the corner fittings and the adjoining frame structure. US 4,593,832 describes a tank container with a pressure tank supported on the end frame via a saddle structure, wherein an end ring at the tank head interacts with a saddle ring and the loads are transferred to the corner areas of the container frame via diagonal frame elements. The invention is therefore based on the objective of providing a container of the type mentioned above, in which improved connection of further components is made possible. The problem is solved by the features of claim 1. Preferred embodiments are described in the dependent claims. The problem is solved according to the invention by providing a container for the transport of liquids or gases, comprising a frame and corner fittings arranged at the corners of the frame. At least one of the corner fittings has a flat attachment surface that runs obliquely to the vertical and/or horizontal of the frame. This attachment surface is designed for connecting a saddle plate or saddle structure. The saddle plate or saddle structure, in conjunction with the corner fitting, serves to connect further load-bearing components of the container. Furthermore, the attachment surface has conical transition surfaces at its edges, which allow for adjustment of the angle of the saddle plate and simultaneously promote a uniform force transmission between the saddle plate and the corner fitting. Within the scope of the present invention, the term "corner fitting" is used in both the singular and plural, with both variants referring to the same type of component that is attached to the corners of the container and connects to the saddle structure. The preferred design enables optimized load transfer and ensures that the forces acting on the container during transport are distributed efficiently and evenly across the corner fittings. The angled attachment surface allows the saddle plate or saddle structure to be flexibly adapted to the corner fitting to accommodate different load directions. Furthermore, the conical transition surfaces ensure that force transmission between the components occurs without stress concentrations, resulting in a longer service life for the container and stabilizing the entire transport process. The inventive design is particularly suitable for use in modular railway superstructures, where higher overall weights may occur compared to standardized ISO containers. The design of the attachment surface provides a larger connection area between the saddle structure and the corner fitting compared to conventional corner fittings. so that the increased forces occurring in such applications can be appropriately introduced into the corner fitting and the container frame. In one embodiment, the inclined lashing surface is designed with an inclination of 30° to 60° relative to the vertical or horizontal. This inclination allows for even better adaptation of the flexible angle of the saddle plate or saddle structure to specific loads. The precise inclination of the lashing surface ensures optimized force transmission, enabling the corner fitting to reliably withstand the forc