Assembly of a corner connection hollow body of a room cell and a fastening device and method for mounting the fastening device on the corner connection hollow body

Abstract

The invention relates to an arrangement (10) comprising a corner connecting hollow body (20.2) and a fastening device (13) for attaching a connecting part (12) to the corner connecting hollow body (20.2). An outer wall part (37.2) of the corner connecting hollow body (20.2) has an elongated opening (38.2) that is open to the outside (17) and that leads into a cavity (36) of the corner connecting hollow body (20.2). The fastening device (13) has an elongated fastening body (26) which includes a first fastening element (14.1) for releasably fastening a first connecting element (22) for attaching the connecting part (12) to the corner connecting hollow body (20.2). The fastening body (26) can be inserted from the outside through the opening (38.2) into the cavity (36) in an insertion and through position and can be moved into a locking position (30) within the cavity (36).The fastening device (13) has a clamping body (31) with clamping means (32.1, 32.2) for clamping the fastening device (13) to perforation edges (40) of the elongated perforation (38.2). The fastening device (13) comprises a fastening assembly (15) containing the clamping body (31) and the fastening body (26) as well as a second connecting means (23.1, 23.2) by means of which the clamping body (31) and the fastening body (26) are rigidly connected, but movably connected relative to each other.

Description

[0001] The invention relates to an arrangement having the features of the preamble of claim 1. Technological background and state of the art

[0002] A room cell arrangement is known from DE 20 2018 104 810 U1 and from the parallel EP 3 613 911 B1 of the applicant. This arrangement comprises several, preferably mobile or transportable, room cells, of which at least one upper room cell is arranged on at least one lower room cell. The room cells are each cuboid-shaped and each comprise eight cuboid-shaped corner connecting hollow bodies, each forming a corner of the room. The room cells can be so-called mini-modules or containers, preferably residential, office and / or construction containers, in particular for kindergartens, schools and offices or for residential, office and construction purposes and / or for construction sites or as temporary or interim accommodation.

[0003] Such cuboid room cells and their cuboid corner connecting hollow bodies have also been widely known for many years. They are each constructed from eight corner connecting hollow bodies, each forming a corner of the eight corners. Typically, these room cells are constructed with a substantially cuboid framework consisting of floor frame profiles, ceiling frame profiles, and uprights connecting the floor frame profiles to the ceiling frame profiles, preferably forming corner profiles and / or edge profiles. These uprights, also known as vertical posts or corner columns, each extend between a lower and an upper corner connecting hollow body of the said eight corner connecting hollow bodies. These corner connecting hollow bodies are preferably made of cast iron. Accordingly, the corner connecting hollow bodies can also be referred to as cast corners. They are also referred to as container corners.The known cuboid-shaped corner connecting hollow bodies have six outer walls, each of which is aligned perpendicular to four immediately adjacent outer walls. These cuboid-shaped corner connecting hollow bodies have a cavity for receiving connecting means. These corner connecting hollow bodies have a first opening in a first outer wall of their six outer walls, a second opening in a directly adjacent, second outer wall of their six outer walls, aligned perpendicularly thereto, and a third opening in a third outer wall of the outer walls, aligned perpendicular to the first outer wall and perpendicular to the second outer wall, which third outer wall of the outer walls is directly adjacent to the first outer wall and to the second outer wall. Each of these three openings is in the uninstalled state of the respective corner connecting hollow body orin each separate corner connection hollow body open to the outside and flows into the respective cavity of the respective corner connection hollow body.

[0004] In vertically stacked room cells, two of these room cells are connected to each other by means of a vertical connecting element, which is fixed but releasably connected to each other. For this purpose, at least two or four upper corner connecting hollow bodies of the eight corner connecting hollow bodies of the lower room cell are each braced to one lower corner connecting hollow body of the four lower corner connecting hollow bodies of the eight corner connecting hollow bodies of the upper room cell, each braced to each other by means of the vertical connecting element.For this purpose, each vertical connecting element has a wedge that can be manually attached from the outside, is in a wedge-tensioned position and can then be released again. By means of this wedge, the respective upper corner connecting hollow body of the lower room cell is vertically clamped against the respectively assigned lower corner connecting hollow body of the upper room cell, each forming an internal clamping connection. Each vertical connecting element, including the wedge, is arranged completely internally, i.e. completely within a space occupied by the respective upper corner connecting hollow body and the respectively assigned lower corner connecting hollow body. With this room cell arrangement, assembly and / orAttachment of a facade extending to the outer edges of the respective exterior wall of the respective room unit, for example a plastered facade, without any obstructive parts is possible, while still allowing comparatively simple assembly and disassembly of the respective vertical connecting element. Each cuboid-shaped corner connecting hollow body has a cavity for accommodating parts of a vertical connecting element and parts of a horizontal connecting element, and an elongated opening in three of its outer wall sections bordering the cavity. These vertical connecting elements are only suitable for fastening or bracing two such room units arranged vertically one above the other.

[0005] In the case of the room cells arranged horizontally next to one another, two of these room cells are or are connected to one another by means of at least one horizontal connecting means in a fixed but releasable manner in such a way that they are braced against one another. For this purpose, at least two or four of the lateral corner connecting hollow bodies assigned to a first side of the first room cell of the eight corner connecting hollow bodies of the first room cell are braced together with at least two or four of the second side of the assigned lateral corner connecting hollow bodies of the eight corner connecting hollow bodies of the second room cell opposite the first side of the first room cell, each by means of the horizontal connecting means. Each horizontal connecting means is a horizontal connecting body in the form of a hexagon screw. This has a threaded shaft with an external thread.A hexagon nut with its internal thread is screwed onto the external thread of the threaded shank of the hexagon screw. The hexagon screw is inserted with its threaded shank through a first elongated opening in a first corner connection hollow body, through a second elongated opening in a second corner connection hollow body laterally opposite the first corner connection hollow body, through a first bore in a first mounting plate, and through a second bore in a second mounting plate.The hexagon screw head of the hexagon screw rests on a first inner wall of a first corner connection hollow body via the first fastening plate in the area of ​​the first elongated opening in the first corner connection hollow body, and rests on a second inner wall of a second corner connection hollow body via the second fastening plate in the area of ​​the second elongated opening in the second corner connection hollow body. While the assembly of these horizontal fasteners is comparatively simple and quick using a tool inserted into the cavity from the outside, in particular using an open-end wrench, there is a risk that the hexagon screw will be pushed into or fall into the cavity of the corner connection hollow body associated with its hexagon screw head when screwing the hexagon nut onto the screw shank of the hexagon screw.In addition, the positioning accuracy achievable with these simply designed horizontal connecting devices is low.

[0006] It has been shown in practice that there is a growing need for a precisely positioned and secure fastening or connection of a connecting part, in particular a supporting and / or bridging body, for example a roof, preferably a canopy, a platform, a staircase, or a ramp, to the side of one or more such spatial units or to one side of the respective corner connecting hollow body, i.e., not to the top or bottom of the respective corner connecting body of the spatial unit. To meet this need, the invention aims to offer an advantageous solution. Summary of the invention

[0007] The invention is based on the object of providing an arrangement of the type mentioned at the outset for and a method for mounting the fastening device on the corner connection hollow body, with or by means of which simple assembly and disassembly as well as secure fastening or connection of the fastening device with the aid of the elongated fastening body to the corner connection hollow body and precise and secure fixing of the elongated fastening body in the cavity of the corner connection hollow body is possible and which enables simple assembly and disassembly as well as secure, in particular lateral, fastening or connection of a connecting part, for example a supporting and / or bridging body, for example a roof, in particular a canopy, a platform, a staircase or a ramp.

[0008] This object is achieved by the features of claim 1. Accordingly, the invention relates to an arrangement comprising a preferably cuboid or cube-shaped hollow corner connecting body, in particular a container corner, preferably made of cast metal, of a particularly cuboid or cube-shaped, preferably container-shaped, room cell, and comprising a fastening device for, in particular lateral, fastening or connection of a connecting part, for example a supporting and / or bridging body, in particular a roof, for example a canopy, a platform, a staircase or a ramp, to the hollow corner connecting body of the room cell, wherein the hollow corner connecting body has, in particular, six outer wall parts that delimit a cavity of the hollow corner connecting body, preferably wherein the outer wall parts are delimited by outer surfaces,of which each outer surface of three immediately adjacent outer surfaces of the outer surfaces of the six outer wall parts extends substantially perpendicular to one another, and wherein at least one, preferably lateral, outer wall part of the outer wall parts of the corner connection hollow body has an elongated opening, preferably an elongated hole, which extends along a longitudinal axis of the elongated opening and which is delimited by wall parts of the at least one outer wall part of the corner connection hollow body forming opening edges and which is open to the outside on the one hand and opens into the cavity on the other hand, and wherein the fastening device has an elongated fastening body, preferably a threaded plate, which extends along a fastening body longitudinal axis of the elongated fastening body and which has a first fastening means, preferably an internal thread,for releasably fastening a first connecting means, for example a hexagon screw with an external thread, for fastening the connecting part, in particular laterally, to the corner connecting hollow body of the room cell by means of the fastening device, preferably and wherein the first fastening means of the elongated fastening body extends along a first fastening axis of the first fastening means, which is formed transversely or perpendicularly to the fastening body longitudinal axis of the elongated fastening body, and wherein the elongated first fastening body can be inserted in an insertion and through-insertion position from the outside through the elongated opening of the corner connecting hollow body into the cavity of the corner connecting hollow body and can be transferred, in particular rotated, into a locking position within the cavity,preferably in which the fastening body longitudinal axis of the elongate fastening body is aligned transversely or perpendicularly to the opening longitudinal axis of the elongate opening, so that the elongate fastening body in the locking position engages behind either a first opening edge of the opening edges or a first opening edge of the opening edges and an opposite second opening edge of the opening edges of the elongate opening, whereby the elongate fastening body is locked against movement, in particular withdrawal, from the cavity of the corner connection hollow body through the elongate opening to the outside in a direction transversely or perpendicularly to the fastening body longitudinal axis of the elongate fastening body, and wherein the fastening device comprises a clamping body, preferably a centering body, in particular a centering plate,with clamping means for clamping the fastening device to the opening edges of the elongated opening in the, preferably lateral, outer wall part of the corner connecting hollow body, and wherein the fastening device comprises a fastening assembly or consists of a fastening assembly containing the clamping body and the elongated fastening body as well as a second connecting means, for example several, in particular two, rod-shaped connecting bodies, for example screws, in particular cylinder head screws, by means of which the clamping body of the fastening assembly and the elongated fastening body of the fastening assembly are firmly connected, but movable relative to one another, preferably detachably.

[0009] According to one or more preferred embodiments, the following features a) to f) may additionally be provided - individually or in any combination with one another:a) that the second connecting means of the fastening assembly can be transferred into a connecting means position in which the clamping body of the fastening assembly and the elongated fastening body of the fastening assembly can be moved at least relative to one another by means of the second connecting means of the fastening assembly; b) that the fastening assembly can be inserted manually with the aid of the clamping body of the fastening assembly, in particular by manually holding or gripping the clamping body, with the elongated fastening body of the fastening assembly in the insertion and through-insertion position leading, preferably without the aid of another assembly aid, through the elongated opening of the corner connection hollow body into the cavity of the corner connection hollow body, preferably at least or only as far into the cavity of the corner connection body,that the elongated fastening body of the fastening assembly arranged in the cavity can be manually transferred, in particular rotated, from the insertion and push-through position into the locking position with the aid of the clamping body of the fastening unit arranged at least partially or completely outside the corner connection hollow body, preferably without the aid of another assembly aid; c) that or wherein or according to which the elongated fastening body of the fastening assembly arranged in the cavity can be manually transferred, in particular rotated, from the insertion and push-through position into the locking position with the aid of the clamping body of the fastening assembly, preferably without the aid of another assembly aid; d) that or wherein or according to which the clamping body of the fastening assembly can be manually transferred, in particular rotated, from the insertion and push-through position into the locking position with the aid of the second connecting means of the fastening assembly,the elongated fastening body, which is preferably already in contact with an inner side of the outer wall part of the corner connecting hollow body in the locking position, is movable, preferably displaceable, in such a way that the elongated fastening body of the fastening assembly arranged in the cavity can be manually transferred, in particular rotated, from the insertion and push-through position into the locking position with the aid of the clamping body of the fastening assembly, preferably without the aid of another assembly aid; e) that or wherein or according to which the clamping body of the fastening assembly is movable, preferably displaceable, with the aid of the second connecting means of the fastening assembly in the direction of the elongated fastening body, which is preferably already in contact with an inner side of the outer wall part of the corner connecting hollow body in the locking position,that the clamping body of the fastening assembly, together with its clamping means, in particular partially or completely, is movable, in particular retractable, into the elongated opening of the corner connection hollow body to such an extent that the clamping body of the fastening assembly can be clamped by means of its clamping means to and with the counter-wall parts of the wall parts of the outer wall part of the corner connection hollow body forming the opening edges of the elongated opening, preferably against a movement of the clamping body of the fastening assembly relative to the elongated opening; f) that or wherein or according to which the clamping body of the fastening assembly and the elongated fastening body of the fastening assembly are connected by means of the second connecting means of the fastening assembly, preferably directly or indirectly, in particular releasably,preferably in a clamping position or end position can be clamped against each other and / or rigidly connected to each other.

[0010] According to a preferred development, the clamping body of the fastening assembly comprises a preferably flat, in particular plate-shaped, elongated base body, preferably formed as a sheet metal, which extends along a longitudinal axis of the base body and is opposite the elongated fastening body of the fastening assembly. This allows for advantageous contact with the elongated fastening body of the fastening assembly, or particularly secure and firm fastening of the clamping body of the fastening assembly to the elongated fastening body of the fastening assembly by means of the second connecting means of the fastening assembly.

[0011] In this case, it can be provided that the longitudinal axis of the base body of the elongated base body of the clamping body of the fastening assembly is arranged perpendicular to the longitudinal axis of the elongated fastening body of the fastening assembly, i.e. in a transverse position. As a result, when the elongated fastening body of the fastening assembly is inserted or plugged in in its inserted and through position from the outside into and through the elongated opening in the corner connection hollow body into its cavity, the transverse position of the base body of the clamping body means that it comes to rest on an outer side of the associated outer wall part of the corner connection hollow body, i.e. cannot be transferred or inserted into the elongated opening in the corner connection hollow body, or cannot be transferred any further in the direction of the cavity of the corner connection hollow body. As a result, when the fastening device orof the fastening unit, the elongated fastening body of the fastening unit must be prevented from falling into the cavity of the corner connection body.

[0012] According to an advantageous embodiment, it can be provided that the base body has a, preferably central, first base body opening, preferably a, in particular central, bore, for the passage of the first connecting means and that the first fastening means of the elongate fastening body is either a, preferably central, first fastening body thread, for example an internal thread, of the elongate fastening body of the fastening assembly, which extends along the first fastening axis or a first fastening axis transversely or perpendicularly to the fastening body longitudinal axis, wherein the first fastening axis penetrates the first base body opening, preferably and that the first connecting means is a rod-shaped first connecting body, preferably designed as a threaded bolt or as a threaded screw, with a first connecting body thread,for example, an external thread, which can be inserted from the outside with its first connecting body thread leading with radial play through the, preferably central, first base body opening and can be screwed with its first connecting body thread into or onto the first fastening body thread of the elongated fastening body of the fastening assembly, or that the first fastening means of the elongated fastening body is a, preferably central, rod-shaped third fastening body which extends along a third fastening axis of the third fastening body transversely or perpendicularly to the fastening body longitudinal axis and which, preferably at its third fastening body end pointing away from the elongated fastening body of the fastening assembly, has a third fastening body thread, for example, an external thread, and which, with its third fastening body thread leading with play,in particular radial play, through which the first, preferably central, base body opening is inserted, preferably, and that the first connecting means is a nut with a nut thread, for example an internal thread, by means of which the nut can be screwed onto or into the third fastening body thread of the preferably central, rod-shaped third fastening body. These measures enable particularly simple assembly and secure connection.

[0013] According to a particularly preferred embodiment, it can be provided that the second connecting means is a separate first connecting body extending along a first connecting body longitudinal axis, preferably designed as a threaded bolt or threaded screw, in particular a cylinder head screw, and a separate second connecting body extending along a second connecting body longitudinal axis, preferably designed as a threaded bolt or threaded screw, in particular a cylinder head screw, and that the base body has a second base body opening, for example a bore, for receiving the first connecting body and a third base body opening, for example a bore, for receiving the second connecting body, which, viewed in the direction of the base body longitudinal axis, are arranged at an opening distance from one another, preferably and which are each arranged in a radial,in particular at an equal radial distance from a base body center of the base body and on a straight line containing the base body center, in particular on a base plate longitudinal axis, wherein the first connecting body extends through the first base body opening with play, in particular radial play, and wherein the second connecting body extends through the second base body opening with play, in particular radial play, such that the first connecting body longitudinal axis and the second connecting body longitudinal axis are arranged substantially parallel to one another,so that the clamping body of the fastening assembly and the elongated fastening body of the fastening assembly are movable relative to each other along the first connecting body longitudinal axis and along the second connecting body longitudinal axis. This provides a simple and cost-effective way for secure and smooth installation of the fastening device or fastening assembly to the corner connecting body of the room unit.

[0014] According to a particularly preferred development, it can be provided that the clamping means of the clamping body of the fastening assembly are a first spring-elastic clamping body, preferably a first clamping tab, and a second spring-elastic clamping body, preferably a second clamping tab, which are each fastened to the base body, preferably on first sides of the base body extending away from one another in opposite directions, in particular in one piece or in one piece, and which each extend away from the base body and from the elongated fastening body of the fastening assembly in a preferably axial, first direction, in particular outwards, preferably and which each extend away from the base body in a particularly radial, second direction from one or the base body center of the base body.This allows advantageous centering and secure fastening of the clamping body of the fastening assembly in or on the associated counter-wall parts of the wall parts forming the opening edges of the elongated opening of the corner connecting hollow body, so that corresponding centering and secure fastening of the entire fastening device or fastening assembly can be achieved.

[0015] Preferably, the first clamping body and the second clamping body can each protrude obliquely beyond the base body, preferably forming a first angle to the base body. This allows for simple assembly and, at the same time, particularly secure attachment of the fastening device or fastening assembly to the corner connecting hollow body, while providing advantageous centering options.

[0016] Preferably, the first spring-elastic clamping body and the second spring-elastic clamping body can be attached to the base body offset from one another by an angle of 180 degrees around a base body center or around the base body center of the base body. This leads to a further improvement in terms of the aforementioned advantages.

[0017] According to a preferred embodiment, it can be provided that the clamping body of the fastening assembly, preferably in addition to the clamping means of the fastening assembly, support means for supporting the clamping body of the fastening assembly on the corner connection hollow body, preferably in the region of the elongated opening, in particular on an outer side of the corner connection hollow body, are fastened, in particular in one piece or in a single piece, against a preferably axial movement of the clamping body of the fastening assembly and / or the elongated fastening body of the fastening assembly into the cavity of the corner connection hollow body. This allows assembly and centering to be further improved, and it can be reliably prevented that the clamping body can penetrate or be pulled further than desired into the elongated opening of the corner connection hollow body or even into its cavity during assembly.

[0018] It can be provided that the support means are a first spring-elastic support body, for example a first support tab, and a second spring-elastic support body, for example a second support tab, which are each fastened to the base body, preferably on second sides of the base body extending away from one another in opposite directions, in particular in one piece or in a single piece, and which each extend away from the base body and from the elongated fastening body of the fastening assembly, each with a spacing body, for example a spacing tab, in a preferably axial, third direction, in particular support means direction, in particular outwards, preferably and which each extend away from the base body in a, in particular radial, fourth direction from one or the base body center of the base body.This further enhances the aforementioned advantages. In addition, it allows for a particularly flat or narrow design, minimizing or preventing interference with other components.

[0019] Preferably, the first spacing body and the second spacing body can each protrude obliquely beyond the base body, preferably forming a second angle to the base body. This allows for simple assembly and, at the same time, particularly secure attachment of the fastening device or fastening assembly to the corner connecting hollow body, while providing advantageous centering options.

[0020] Preferably, the first spring-elastic support body and the second spring-elastic support body can be attached to the base body offset from one another by an angle of 180 degrees around a base body center or around the base body center of the base body. This leads to a further improvement in terms of the aforementioned advantages.

[0021] According to a preferred development, it can be provided that the support means are designed as L-shaped support bodies, wherein the respective spacing body extends from the base body and from the elongated fastening body of the fastening assembly away to a spacing body end, at which in each case, preferably in one piece orin one piece, a support element, for example a support tab, for supporting the clamping body of the fastening assembly on the corner connection hollow body, preferably in the region of the elongated opening, in particular on an outer side of the corner connection hollow body, is fastened against a preferably axial movement of the clamping body of the fastening assembly and / or of the elongated fastening body of the fastening assembly into the cavity of the corner connection hollow body, and wherein the support element extends transversely to the associated spacing body from the base body center of the base body, in particular radially, preferably forming a free end of the respective support body. This allows a further improvement of the aforementioned advantages and, in addition, a particularly flat or narrow structure to be achieved, so that any interference with other components can be minimized or prevented accordingly.

[0022] According to a particularly preferred embodiment, it can be provided that the resilient support bodies and the resilient clamping bodies are designed to be coordinated with one another in such a way that when the fastening assembly is transferred into a final assembly position in which the elongated fastening body of the fastening assembly is arranged in the cavity of the corner connection hollow body in the locking position, preferably such that it engages behind either the first opening edge of the opening edges or the first opening edge of the opening edges and the opposite second opening edge of the opening edges of the elongated opening, whereby the elongated fastening body is locked against movement out of the cavity of the corner connection hollow body through the elongated opening to the outside in a direction transverse or perpendicular to the fastening body longitudinal axis of the elongated fastening body,and in which the elongated fastening body of the fastening assembly is clamped against the corner connecting hollow body by means of the second connecting means, the support elements of the support means are supported on an outer side or outer surface of at least one outer wall part of the corner connecting hollow body, and the clamping bodies are firmly clamped on or with the opening edges of the elongated opening. This prevents the clamping body of the fastening assembly from being moved into the hollow space of the corner connecting hollow body during its assembly, so that particularly effective clamping and centering with and on the opening edges of the associated elongated opening can be ensured.

[0023] According to a particularly preferred embodiment, each spring-elastic clamping body can be offset by an angle of 90 degrees around the center of the base body relative to the immediately adjacent spring-elastic support body in the circumferential direction. This allows for particularly advantageous centering of the clamping body of the fastening assembly, and thus of the entire fastening device or fastening assembly, relative to the elongated opening in the hollow corner connecting body.

[0024] According to a very particularly preferred embodiment, it can be provided that the clamping body of the fastening assembly is designed substantially symmetrically to a clamping body longitudinal symmetry plane containing the base body longitudinal axis, preferably extending perpendicular to the base body, and substantially symmetrically to a clamping body transverse symmetry plane which extends normal or perpendicular to the clamping body longitudinal symmetry plane and which intersects the base body longitudinal axis in the base body center of the base body, and that the opening is designed substantially symmetrically to an opening longitudinal symmetry plane containing the opening longitudinal axis and is designed substantially symmetrically to a opening transverse symmetry plane which extends normal orextends perpendicular to the longitudinal plane of symmetry of the opening and which intersects the longitudinal axis of the opening in an opening center of the opening. This enables particularly good centering of the clamping body of the fastening assembly and thus of the entire fastening device or the fastening assembly relative to the elongated opening in the corner connection hollow body and a correspondingly high positional accuracy of the first fastening body of the elongated fastening body. As a result, a connecting part, for example a supporting and / or bridging body, in particular a roof, for example a canopy, a platform, a staircase or a ramp, can be mounted with particularly precise positioning by means of the second fastening body via the first fastening body on the arrangement according to the invention comprising a first corner connection hollow body of a first spatial cell and the mounting of the connecting part on a corresponding orthe same, second corner connecting hollow body of a further or the same second spatial cell is possible in a precisely positioned manner by means of a second fastening device or fastening assembly according to the invention.

[0025] The elongate fastening body of the fastening assembly can preferably be a plate. The first fastening body of the elongate fastening body of the fastening assembly or of the plate can be a thread for fastening the first connecting means. Accordingly, the plate can be a threaded plate. The thread can preferably be an internal thread. The elongate fastening body of the fastening assembly can preferably have a fastening body center through which the fastening body longitudinal axis of the elongate fastening body of the fastening assembly extends, or the fastening body longitudinal axis of the elongate fastening body of the fastening assembly can contain a fastening body center of the elongate fastening body of the fastening assembly.Preferably, the thread can extend along a first fastening axis which is formed transversely or perpendicularly to the base body longitudinal axis.

[0026] Preferably, the elongated fastening body of the fastening assembly can be formed substantially symmetrically to a fastening body longitudinal symmetry plane containing the fastening body longitudinal axis and substantially symmetrically to a fastening body transverse symmetry plane extending normal to the fastening body longitudinal symmetry plane and containing the fastening body center. This allows manufacturing and assembly advantages to be achieved.

[0027] Preferably, the clamping body of the fastening assembly can be made from a single piece. Preferably, the clamping body of the fastening assembly can be a metal sheet and / or a centering plate. This provides a simple and cost-effective solution.

[0028] The invention also relates to a mounting arrangement comprising an arrangement according to the invention, in particular according to one of claims 1 to 13, and comprising a connecting part, for example a supporting and / or bridging body, in particular a roof, for example a canopy, a platform, a staircase or a ramp, which is fastened by means of the first connecting means to the first fastening means of the elongated fastening body of the fastening assembly, preferably detachably, in particular to one side of the corner connecting hollow body of the room unit, preferably which is not the top or the bottom of the corner connecting hollow body of the room unit. This is a particularly preferred application of the arrangement according to the invention.

[0029] The invention also relates to a method for mounting the fastening device or the fastening assembly of the arrangement according to the invention, in particular according to one of claims 1 to 13, on the corner connection hollow body of the spatial unit according to the invention, in particular according to one of claims 1 to 13, wherein the fastening assembly is inserted manually with the aid of the clamping body of the fastening assembly, in particular by manually holding or gripping the clamping body, with the elongated fastening body of the fastening assembly in the insertion and through-insertion position, preferably without the aid of another assembly aid, through the elongated opening of the corner connection hollow body into the cavity of the corner connection hollow body, preferably at least or only as far into the cavity of the corner connection body,that the elongated fastening body of the fastening assembly arranged in the cavity can be manually transferred, in particular rotated, from the insertion and through-plugging position into the locking position with the aid of the clamping body of the fastening unit arranged at least partially or completely outside the corner connection hollow body, preferably without the aid of another assembly aid, wherein or after which the elongated fastening body of the fastening assembly arranged in the cavity is manually transferred, in particular rotated, from the insertion and through-plugging position into the locking position with the aid of the clamping body of the fastening assembly, preferably without the aid of another assembly aid, wherein or after which the clamping body of the fastening assembly is moved, preferably axially, in the direction of the,the elongated fastening body, which is preferably already in contact with an inner side of the outer wall part of the corner connection hollow body in the locking position and which is assigned to the cavity, is moved, preferably displaced, in such a way that the clamping body of the fastening assembly, together with its clamping means, is moved, in particular drawn, so far into the elongated opening of the corner connection hollow body that the clamping body of the fastening assembly is clamped by means of its clamping means on or with the opening edges of the elongated opening of the outer wall part of the corner connection hollow body, preferably against a movement of the clamping body of the fastening assembly relative to the elongated opening,wherein or according to which the clamping body of the fastening assembly and the elongated fastening body of the fastening assembly are clamped against each other and / or rigidly connected to each other by means of the second connecting means of the fastening assembly, preferably directly or indirectly, in particular releasably, preferably in a clamped or end position. This method also achieves the above-mentioned object of the invention.

[0030] It is understood that the above features and measures can be combined in any way within the scope of feasibility.

[0031] Further advantages, features and aspects of the invention will become apparent from the following description and from the figures. Short description of the characters

[0032] They show: Fig. 1 shows an arrangement comprising two space cells (containers) known from the prior art and a connecting part in the form of a canopy mounted according to the invention on the narrow end faces of the two space cells, in a three-dimensional representation; Fig. 2 shows an enlarged three-dimensional section of the arrangement, which in the Figure 1 is marked with a dashed circle, wherein the arrangement according to the invention is illustrated, which comprises the schematically shown corner connecting hollow body (container corner) in a second embodiment and the fastening device or fastening assembly according to the invention mounted thereon in a final assembly position; Fig. 2.1 a longitudinal section of the arrangement according to Figure 2 ; Fig. 2.2 a cross-section of the arrangement according to Figure 2; Fig. 3 shows a corner connection hollow body (container corner) according to the prior art in a first embodiment, in a three-dimensional representation; Fig. 3.1 shows the corner connection hollow body in the first embodiment in a first embodiment according to Figure 3 in a top view; Fig. 3.2 the corner connection hollow body in the first embodiment according to Figure 3 in a side view from the left; Fig. 3.3 the corner connection hollow body in the first embodiment according to Figure 3 in a side view from the right; Fig. 4 a fastening device (fastening assembly) according to the invention in a three-dimensional representation; Fig. 4.1 the fastening device (fastening assembly) according to Figure 4 in a plan view from the front; Fig. 4.2 the fastening device (fastening assembly) according to Figure 4 in a way that is different from the representation in Figure 4.1side view rotated 90 degrees to the right; Fig. 4.3 the fastening device (fastening assembly) according to Figure 3 in a way that is different from the representation in Figure 4.2 rear view rotated 90 degrees to the right; Fig. 4.4 a longitudinal section of the fastening device or fastening assembly along the section lines 4.4 - 4.4 in Figure 4; Fig. 5.1 to 5.4 show a representation of method steps in the assembly of the fastening unit of the arrangement according to the invention on a schematically illustrated corner connection hollow body of the spatial cell of the arrangement according to the invention, wherein Fig. 5.1 shows the arrangement according to the invention in a pre-assembly position of the fastening unit, in which it is arranged completely outside the corner connection hollow body and in which the elongated fastening body (threaded plate) of the fastening unit is in an insertion and through-insertion position in which it can be manually inserted with the aid of the clamping body (centering plate) of the fastening unit into and through the elongated opening (slot) of the corner connection hollow body into its cavity; Fig. 5.2 shows the arrangement according to the invention in a first intermediate assembly position of the fastening assembly, in which the elongate fastening body (threaded plate) of the fastening assembly according to the invention has been inserted so far into the cavity of the corner connection hollow body that the elongate fastening body (threaded plate) of the fastening assembly arranged in the cavity can be manually removed from the position shown in FIG. 1 with the aid of the clamping body (centering plate) of the fastening assembly arranged completely outside the corner connection hollow body, without the aid of any other assembly aid. Figure 5.1 shown insertion and insertion position into a locking position, which is in the Figures 5.3 and 5.4is shown; Fig. 5.3 shows the arrangement according to the invention in a second intermediate assembly position of the fastening unit, in which the elongated fastening body (threaded plate) of the fastening unit according to the invention arranged in the cavity of the corner connecting body is manually removed from the outside by means of the clamping body (centering plate) of the fastening unit without the aid of any other assembly aid from the Figure 5.2shown insertion and insertion position into the locking position shown here, with the clamping body (centering plate) of the fastening assembly still being arranged completely outside the corner connection hollow body; Fig. 5.4 shows the arrangement according to the invention in a final assembly position of the fastening assembly, with the clamping body of the fastening assembly and the elongated fastening body of the fastening assembly being moved against each other with the aid of the second connecting means (here the two cylinder head screws) of the fastening assembly in such a way that the clamping body with its clamping means (here the two clamping tabs) was drawn into the elongated cavity of the corner connection hollow body, and the clamping body of the fastening assembly was clamped by means of its clamping means on and with the opening edges of the elongated opening of an outer wall part of the corner connection hollow body,whereby or after which the clamping body of the fastening assembly and the elongated fastening body of the fastening assembly were clamped directly against each other, again releasably, by means of the second connecting means (here the two cylinder head screws) of the fastening assembly with the corner connecting hollow body. Detailed description of the characters

[0033] The Figure 1shows an arrangement comprising two room cells 11.1, 11.2 and a connecting part in the form of a canopy 12. The room cells 11.1, 11.2 are each cuboid-shaped. Each room cell 11.1, 11.2 extends in the direction of its longitudinal axis 21.1, 21.2. Each room cell 11.1, 11.2 has, viewed in a parallel longitudinal direction 24, two narrow end faces 47.1.1, 47.2.1 extending away from each other in opposite directions and, perpendicular to these, two long end faces or longitudinal sides 47.1.2, 47.2.2, also extending away from each other in opposite directions. Figure 1 The room cell 11.2 shown on the right has narrow end faces 47.2.1, each of which has a greater width than the narrow end faces 47.1.1 of the Figure 1Room cell 11.1 shown on the left. The two room cells 11.1 and 11.2 have the same height and preferably also the same length. The two room cells 11.1 and 11.2 are directly adjacent longitudinally, i.e., on their opposite wide end faces or long sides, and are arranged at the same level or height.

[0034] The canopy 12 is attached to the narrow end faces 47.1.1, 47.2.1 of the two spatial units 11.1, 11.2, which face in the same direction. For this purpose, the canopy 12 is mounted to several corner connecting hollow bodies 20.1, 20.2, each known from the prior art, by means of several fastening devices 13 or fastening units 15 according to the invention and by means of further fastening or connecting means 14.3, 20. One of these corner connecting hollow bodies 20.1 is shown in the Figures 3 and 3.1 to 3.3 in a first embodiment.

[0035] Each room cell 11.1, 11.2 is constructed from a cuboid-shaped, inherently stable and rigid framework. In the illustrated embodiment, the respective framework spans a rectangular floor plan. However, it is understood that the respective framework can also span a quadrangular floor plan. It is further understood that the room cells can also be constructed from a cube-shaped, inherently stable and rigid framework. Each framework comprises floor frame profiles, ceiling frame profiles, and uprights. The uprights can also be referred to as vertical posts or corner columns. Each framework comprises a stable and rigid floor frame formed by the floor frame profiles, and a stable and rigid ceiling frame formed by the ceiling frame profiles. Each floor frame and each ceiling frame is essentially quadrangular in design, thus each has four frame corners 18 arranged in a frame plane.Each frame corner 18 is formed with a cuboid-shaped corner connecting hollow body 20.1, 20.2. Each corner connecting hollow body 20.1, 20.2 is firmly connected, directly or indirectly, to the respective frame and to the respective upright. The floor frame profiles, each extending to a frame corner 18 or room corner 19 of the floor frame, enclose an angle of 90 degrees with one another or run perpendicular to one another. The ceiling frame profiles, each extending to a frame corner 18 of the roof or ceiling frame, enclose an angle of 90 degrees with one another or run perpendicular to one another. In each room cell 11.1, 11.2, at least two floor frame profiles of the floor frame profiles are directly or indirectly connected to a corner connecting hollow body 20.1, 20.2. Each room cell 11.1, 11.2 is designed with eight corner connecting hollow bodies 20.1, 20.2. The cuboid-shaped corner connecting hollow bodies 20.1, 20.2 each form a room corner 19 of the respective room cell. In each room cell 11.1, 11.2, at least two ceiling frame profiles of the ceiling frame profiles are directly or indirectly connected to a corner connecting hollow body 20.1, 20.2. In each room cell 11.1, 11.2, two of the vertically stacked corner connecting hollow bodies 20.1, 20.2 of the total of eight corner connecting hollow bodies 20.1, 20.2 are each connected to one another via one of the at least four uprights. The uprights connect the floor frame profiles to the ceiling frame profiles via the corner connecting hollow bodies 20.1, 20.2.

[0036] The two individual room cells 11.1, 11.2 are firmly but releasably connected to one another via internal horizontal connecting means (not shown), which are known from the aforementioned prior art. For this purpose, a corner connecting hollow body 20.1, 20.2 of the first room cell 11.1 and a horizontally immediately adjacent corner connecting hollow body 20.1, 20.1 of the second room cell 11.2 are firmly but releasably connected by means of an internal horizontal connecting means (not shown). Each of these horizontal connecting means is completely internal, i.e., completely located within a space occupied by the two horizontally adjacent hollow bodies 20.1, 20.2. In other words, the respective internal horizontal connecting means does not protrude beyond said space. In the illustrated embodiment, all horizontal connecting means are of the same design.

[0037] In the Figures 2 and 2.1 and 2.2 an enlarged corner section of the arrangement is shown, which in Figure 1is marked with a dash-dotted circle. The arrangement 10 according to the invention is illustrated therein. This comprises the corner connection hollow body (container corner) 20.2 according to the second embodiment variant and the fastening device 13 according to the invention or fastening assembly 15 according to the invention mounted thereon in a final assembly position 15. This corner cutout also shows a part of the connecting part 12 designed as a canopy, which is fastened by means of a first connecting means 22 designed as a hexagon screw via its external thread to a first fastening means 14.1 in the form of a through-bore provided with an internal thread (internally threaded bore) of the elongated fastening body (threaded plate) 26 of the fastening assembly 15 according to the invention, which is here in a final assembly position 15.

[0038] The arrangement 10 according to the invention comprises the cuboid-shaped corner connecting hollow body (container corner) 20.2, the cuboid-shaped room cell (container) 11.2 and the fastening device 13 according to the invention or the fastening assembly 15 according to the invention for the lateral fastening or connection of the connecting part 12, which is designed here as a canopy, to the corner connecting hollow body 20.2 of the room cell 11.2. At least one lateral, here second, outer wall part 37.2 of the outer wall parts 37.1, 37.2, 37.3, 37.4, 37.5, 37.6 of the corner connecting hollow body 20.2 has an elongated second opening 38.2 designed as an elongated hole, which extends along a second opening longitudinal axis 41.2 of the elongated second opening (elongated hole). 38.2 extends. The elongated second opening 38.2 is formed by wall parts forming opening edges 40 of the at least one outer wall part 37.2 of the corner connecting hollow body 20.2 and is open on the one hand to the outside 17 and on the other hand opens into the cavity 36 of the corner connection hollow body 20.2. The fastening device 13 or the fastening unit 15 has an elongated fastening body 26, which is a plate. The elongated fastening body 26 has a first fastening means 14.1 in the form of a central first opening provided with a first internal thread and designed as a first bore for releasably fastening the first connecting means 22, here the hexagon screw with an external thread, for lateral fastening of the connecting part (canopy) 12 to the corner connection hollow body 20.2 of the spatial unit 11.2 by means of the fastening device 13 or the fastening unit 15. The plate 26 is also referred to as a threaded plate. The elongated fastening body (threaded plate) 26 extends along its fastening body longitudinal axis 27.Preferably, the first fastening means 14.1 (internal threaded bore or first bore) of the elongate fastening body 26 (threaded plate) extends along a first fastening axis 28 of the first fastening means 14.1, which is formed transversely or perpendicularly to the fastening body longitudinal axis 27 of the elongate fastening body (threaded plate) 26. The elongated first fastening body 26 can be inserted or inserted in a push-in and push-through position 29 from the outside through the elongated second opening (slot) 38.2 of the corner connection hollow body 20.2 into the cavity 36 of the corner connection hollow body 20.2 and can be transferred or rotated or transferred or rotated within the cavity 36 into a locking position 30 in which the fastening body longitudinal axis 27 of the elongated fastening body 26 is transverse or perpendicular to the second opening longitudinal axis 41.2 of the elongated second opening (slot) 38.2 is aligned so that the elongated fastening body 26, in the locking position 30, engages behind a first opening edge 41.1 of the opening edges 40; 41.1, 41.2 and an opposite second opening edge 41.2 of the opening edges 40; 40.1, 40.2 of the elongated opening (slot) 38.2. As a result, the elongated fastening body 26, in the locking position 30, is locked against movement or withdrawal from the cavity 36 of the corner connection hollow body 20.2 through the elongated second opening 38.2 to the outside 17 in a direction transverse or perpendicular to the fastening body longitudinal axis 27 of the elongated fastening body 26. The fastening device 13 or the fastening assembly 15 also comprises a clamping body 31, preferably a clamping centering body, in particular a centering plate, with clamping means 32.1, 32.2 for clamping the fastening device 13 orthe fastening assembly 15 on the counter-wall parts or opening edges 40; 40.3, 40.4 of the wall parts of the lateral second outer wall part 37.2 of the corner connecting hollow body 20.2 forming the opening edges 40; 40.1, 40.2, 40.3, 40.4 of the elongated second opening 38.2. According to the invention, the fastening device comprises a fastening assembly 15 or consists of a fastening assembly 15 containing the clamping body 31 and the elongated fastening body 26 as well as a second connecting means 23.1, 23.2, by means of which the clamping body 31 of the fastening assembly 15 and the elongated fastening body 26 of the fastening assembly 15 are firmly connected to one another, but movable relative to one another, preferably detachably.

[0039] The Figures 3 and 3.1 to 3.3illustrate a corner connecting hollow body 20.1 according to the first embodiment, which is installed multiple times (four times) in each room cell 11.1, 11.2. The differences between this first embodiment and a second embodiment of the corner connecting hollow body 20.2, which is also installed multiple times (four times) in each room cell 11.1, 11.2, will be discussed in more detail below.

[0040] The following describes the features of both the corner connection hollow bodies 20.1 according to the first embodiment and the corner connection hollow bodies 20.2 according to the second embodiment: Each cuboid-shaped corner connection hollow body 20.1, 20.2 extends in the direction of its central hollow body longitudinal axis 35. Each cuboid-shaped corner connection hollow body 20.1, 20.2 has a cavity 36 for accommodating fastening or connecting elements. This cavity 36 is bounded by six outer wall parts 37.1, 37.2, 37.3, 37.4, 37.5, 37.6. The outer surfaces of the outer wall sections of three immediately adjacent outer wall sections of the six outer wall sections 37.1, 37.2, 37.3, 37.4, 37.5, 37.6 extend essentially perpendicular to one another. Three immediately adjacent outer wall sections 37.1, 37.2, 37.3 of the six outer wall sections 37.1, 37.2, 37.3, 37.4, 37.5, 37.6 each have an elongated opening 38.1, 38.2, 38.3, each of which opens into the cavity 36. A first outer wall portion 37.1 has a first opening 38.1 opening into the cavity 36, a second outer wall portion 37.2 has a second opening 38.2 opening into the cavity 36, and a third outer wall portion 37.3 has a third opening 38.3 opening into the cavity 36. Each opening 38.1, 38.2, 38.3 is open in a direction away from the cavity 36 toward the outside 17. Each outer wall portion 37.1, 37.2, 37.3, 37.4, 37.5, 37.6 has a rectangular shape. However, it is understood that one or more outer wall parts may also have a square shape and / or that the corner connecting hollow bodies may be cube-shaped. Preferably, the outer edges of each corner connecting hollow body 37.1, 37.2, 37.3, 37.4, 37.5, 37.6 are rounded or beveled.

[0041] In the Figures 3 and 3.1 to 3.3In the installation or use position 25.1 of the corner connection hollow body 20.1 shown, the first outer wall part 37.1 extends in the direction of its horizontal first outer wall longitudinal axis 39.1. The first outer wall longitudinal axis 39.1 extends parallel to the hollow body longitudinal axis 35. The second outer wall part 37.2, which is lateral in the installation or use position 25.1, extends in the direction of its horizontal second outer wall longitudinal axis 39.2. The second outer wall longitudinal axis 39.2 extends perpendicular to the hollow body longitudinal axis 35. The third outer wall part 37.3, which is lateral in the installation or use position 25.1, extends in the direction of its horizontal third outer wall longitudinal axis 39.3. The third outer wall longitudinal axis 39.3 extends parallel to the hollow body longitudinal axis 35. The first outer wall longitudinal axis 39.1 and the third outer wall longitudinal axis 39.3 extend parallel to each other. The second outer wall longitudinal axis 39.2 extends perpendicular to the first outer wall longitudinal axis 39.1 and perpendicular to the third outer wall longitudinal axis 39.3.

[0042] The three elongated openings 38.1, 38.2, 38.3 are each formed as an elongated hole, each extending in the direction of an opening longitudinal axis 41.1, 41.2, 41.3. Preferably, each elongated hole 38.1, 38.2, 38.3 has an oval opening cross-section 41.1, 41.2, 41.3. The first opening 38.1 is formed as a first elongated hole, which extends in the direction of a first opening longitudinal axis 41.1. The second opening 38.2 is formed as a second elongated hole, which extends in the direction of a second opening longitudinal axis 41.2. The third opening 38.3 is formed as a third elongated hole, which extends in the direction of a third opening longitudinal axis 41.3. The second longitudinal axis 41.2 of the second opening 38.2 and the third longitudinal axis 41.3 of the third opening 38.3 extend parallel to each other. The second longitudinal axis 41.2 of the second opening 38.2 and the third opening longitudinal axis 41.3 of the third opening 38.3 each extend perpendicular to the hollow body longitudinal axis 35. The first opening longitudinal axis 41.1 of the first opening 38.1 extends perpendicular to the second opening longitudinal axis 41.2 of the second opening 38.2 and extends perpendicular to the third opening longitudinal axis 41.3 of the third opening 38.3. The first opening longitudinal axis 41.1 of the first opening 38.1 extends parallel to the hollow body longitudinal axis 35.

[0043] The corner connecting hollow bodies 20.1, 20.2 of each room cell 11.1, 11.2, 11.3, 11.4 are arranged such that their respective hollow body longitudinal axis 35 and their respective first opening longitudinal axis 41.1 extend parallel to the respective room cell longitudinal axis 21.1, 21.2.

[0044] The first opening 38.1 has, viewed in the direction of its first longitudinal axis 41.1, a first opening length 43.1.1 and, viewed perpendicular thereto, a first opening width 43.1.2. Preferably, the first opening length 43.1.1 is approximately 124 mm. Preferably, the first opening width 43.1.2 is approximately 63.5 mm.

[0045] The second opening 38.2 has, viewed in the direction of its longitudinal axis 41.2, a second opening length 43.2.1 and, viewed perpendicular thereto, a second opening width 43.2.2. Preferably, the second opening length 43.2.1 is approximately 79.5 mm. Preferably, the second opening width 43.2.2 is approximately 51 mm.

[0046] The third opening 38.3 has, viewed in the direction of its longitudinal axis 41.3, a third opening length 43.3.1 and, viewed perpendicularly thereto, a third opening width 43.3.2. Preferably, the third opening length 43.3.1 is approximately 79.5 mm. Preferably, the third opening width 43.3.2 is approximately 51 mm.

[0047] Preferably, the elongated second opening 38.2 and the elongated third opening 38.3 have a substantially identical inner contour 46.2, 46.3 with substantially identical dimensions.

[0048] Each elongated opening 38.1, 38.2, 38.3 is formed symmetrically to an opening longitudinal symmetry plane 44 containing the respective opening longitudinal axis 41.1, 41.2, 41.3 and symmetrically to an opening transverse symmetry plane 45 which is arranged normal to the opening longitudinal symmetry plane 44 and which contains the respective opening center 49.

[0049] The outer dimensions of each corner connecting hollow body 20.1, 20.2 are the same. In other words, each corner connecting hollow body 20.1, 20.2 has the same outer dimensions. The corner connection hollow bodies 20.1 of the first variant and the corner connection hollow bodies of the second variant 20.2 are otherwise designed identically, but with the exception of the arrangement of the third opening 38.3, as described below: In the first embodiment variant of each corner connection hollow body 20.1, the third opening 38.3, in an arrangement of the respective first corner connection hollow body in which its first outer wall part 37.1 is arranged at the top and in which the first opening 38.1 is open at the top, and in which, in a viewing direction parallel to the hollow body longitudinal axis 35 or parallel to the first opening longitudinal axis 41.1 of the first opening 38.1 or parallel to the second opening longitudinal axis 41.2 of the second opening, from the front onto the second outer wall part 37.2, which is then arranged at the front, or onto the second opening 38.2, which is then arranged at the front, in the third outer wall part 37.3, which is then arranged on the left. Such a corner connecting hollow body 20.1 according to the first embodiment variant is shown in particular in the . Figures 3 and 3.1 to 3.3 illustrated.

[0050] In contrast, in the second embodiment of each corner connecting hollow body 20.2, the third opening 38.3 is provided in an arrangement of the respective second corner connecting hollow body in which its first outer wall part 37.1 is arranged at the top, and in which the first opening 38.1 is open at the top, and in which, in a viewing direction parallel to the hollow body longitudinal axis 35 or parallel to the first opening longitudinal axis 41.1 of the first opening 38.1 or parallel to the second opening longitudinal axis 41.2 of the second opening, from the front onto the then front-arranged second outer wall part 37.2 or onto the then front-arranged second opening 38.2, in the then right-arranged third outer wall part 37.3. Such a corner connecting hollow body 20.2 according to the second embodiment is particularly in the Figures 2, 2.1, 2.2 illustrated.

[0051] In all corner connecting hollow bodies 20.1, 20.2 according to the first and second embodiments, the third opening 38.3 is arranged on exchanged or mirrored sides of the respective corner connecting hollow body 20.1, 20.2 with respect to an imaginary plane spanned by the first opening longitudinal axis 41.1 of the first opening 38.1 and by the second opening longitudinal axis 41.2 of the second opening 38.2.

[0052] When considering the room cells 11.1, 11.2 of the arrangement as shown in Figure 1, in a direction towards their narrow end faces 47.1.1, 47.2.1 parallel to the respective room cell longitudinal axes 21.1, 21.2, the corner connecting hollow bodies 20.1, 20.2 are arranged in each room cell 11.1, 11.2 in such a way that the corner connecting hollow body arranged at the top left and bottom right in each room cell 11.1, 11.2 is a corner connecting hollow body 20.1 according to the first embodiment variant, while the corner connecting hollow body arranged at the top right and bottom left in each room cell 11.1, 11.2 is a corner connecting hollow body 20.2 according to the second embodiment variant. In each room cell 11.1, 11.2, the two corner connecting hollow bodies 20.1 assigned to each of their respective end faces 47.1.1, 47.1.2, 47.2.1, 47.2.2 are arranged diagonally opposite one another according to the first embodiment variant and are also the corner connecting hollow bodies 20.2 arranged diagonally opposite one another according to the second embodiment.

[0053] In each room cell 11.1, 11.2, the four respective corner connecting hollow bodies 20.1, 20.2, each assigned to a common narrow end face 47.1.1, 47.2.1 of the two narrow end faces of each room cell 11.1, 11.2, are installed in such a way that their respective second opening 38.2 is arranged on this narrow end face 47.1.1, 47.2.1, i.e. is open in an outward direction 17 towards the common narrow end face 47.1, i.e. here in the direction of the canopy 12.

[0054] In each room cell 11.1, 11.2, 11.3, 11.4, the respective two corner connecting hollow bodies 20.1, 20.2, each assigned to a common narrow end face 47.1.1, 47.2.1, each diagonally opposite, both of the first embodiment and the second embodiment, are arranged in such a way that one corner connecting hollow body 20.1 or 20.2 is installed rotated by 180 degrees about its hollow body longitudinal axis 35 relative to the other corner connecting hollow body 20.1 or 20.2 of the same embodiment arranged diagonally opposite.

[0055] Using the example of the corner connection hollow bodies 20.1 according to Figure 3 In the illustrated first embodiment, this means that the corner connection hollow body arranged at the top left in the Figure 3shown position, i.e. such that its third opening 38.3 is arranged in the third outer wall part 37.3 on the left, its second opening 38.2 in the second outer wall part 37.2 at the front and its first opening 38.1 in the first outer wall part 37.1 at the top, while the other corner connecting hollow body 20.1 of the same first embodiment variant, arranged diagonally opposite at the bottom right on the same narrow end face 47.1.1, 47.2.1, is arranged such that its third opening 38.3 is arranged in the third outer wall part 37.3 on the right, its second opening 38.2 in the second outer wall part 37.2 at the front and its first opening 38.1 in the first outer wall part 37.1 at the bottom.

[0056] Using the example of the corner connection hollow bodies 20.2 according to Figure 2 In the illustrated second embodiment, this means that the corner connecting hollow body 20.2 arranged at the top right in the Figure 2shown position, and consequently in the view according to Figure 1 viewed from the side, is arranged such that its third opening 38.3 is arranged in the third outer wall part 37.3 on the right, its second opening 38.2 in the second outer wall part 37.2 at the front, or towards the canopy 12, and its first opening 38.1 in the first outer wall part 37.1 at the top, while the corner connecting hollow body 20.2 of the same second embodiment, which is arranged diagonally opposite at the bottom left on the same narrow end face 47.1.1, 47.2.1, is arranged such that its third opening 38.3 is arranged in the third outer wall part 37.3 on the left, its second opening 38.2 in the second outer wall part 37.2 at the front, or towards the canopy 12, and its first opening 38.1 in the first outer wall part 37.1 at the bottom.

[0057] By means of the corner connecting hollow bodies 20.1 of the first embodiment and by means of the corner connecting hollow bodies 20.2 of the second embodiment arranged in this way, it is achieved that in all four upper corner connecting hollow bodies 20.1, 20.2 of each room cell 11.1, 11.2 the respective first opening 38.1 is arranged on the same upper side and that in all four lower corner connecting hollow bodies 20.1, 20.2 of each room cell 11.1, 11.2 the respective first opening 38.1 is arranged on the same lower side, which points away from the said upper side in an opposite direction.

[0058] If a further corresponding room cell is placed on a first room cell 11.1, 11.2 in such a way that the respective four vertical sides of these two room cells are arranged in alignment with one another, then the first openings (elongated holes) 38.1 of the upper corner connecting hollow bodies 20.1, 20.2 of the lower room cell, which are open at the top, are each opposite a first opening (elongated hole) 38.1 of the four lower corner connecting hollow bodies 20.1, 20.2 of the upper room cell, which are open at the bottom. At the same time, the corner connecting hollow bodies 20.1, 20.2 of the first and second embodiments arranged in the manner described above ensure that the respective third opening (elongated hole) 38.3 of the four corner connecting hollow bodies 20.1, 20.2 assigned to a long side (wide front side) 47.1.2, 47.2.2 of each room cell 11.1, 11.2, 11.3, 11.4 is arranged on precisely this long side 47.1.2, 47.2.2 and to this long side 47.1.2, 47.2.2 is open.

[0059] If, as exemplified in Figure 1 shown, horizontally, preferably directly, next to the lower room cell 11.1 shown there bottom left, a further lower room cell 11.2 is set up laterally at the same height or level in such a way that these two lower room cells 11.1, 11.2 are aligned with each other at their respective two narrow end faces 47.1.1, 47.2.1, then every third opening (slot) 38.3 of the four corner connecting hollow bodies 20.1, 20.2 of the first room cell 11.1 is laterally opposite the third opening (slot) 38.3 of the respective corner connecting hollow body 20.1, 20.2 of the associated four corner connecting hollow bodies 20.1, 20.2 of the second room cell 11.3. In addition, for each corner connecting hollow body 20.1, 20.2, the second opening (long hole) 38.2 is arranged on the narrow end face 47.1.1, 47.2.1 of the respective room cell 11.1, 11.2.

[0060] A connecting part 12, for example a supporting and / or bridging body or a roof or canopy 12, a platform, a staircase, a ramp or the like, can be easily mounted and securely fastened to the elongated openings 38.2, 38.3 (oblong holes) located on the outside of one or more room cells 11.1, 11.2 by means of the fastening device or fastening assembly 15 according to the invention.

[0061] The fastening assembly 15 according to the invention is shown in the Figures 4 and 4.1 to 4.3 . Additionally, a first connecting element 22 in the form of a first fastening element configured as a hexagonal screw, including a washer 14.3, is shown there for fastening a connecting part, here the canopy 12. This first connecting element (hexagonal screw) 22 and this washer 14.3 are not part of the fastening assembly 15 in the illustrated embodiment.

[0062] As in the Figures 2and 2.1 and 2.2, a connecting part (canopy) 12 can be fastened or already fastened to the fastening unit 15. A hexagon screw 22 having a screw shaft provided with an external thread can be used for this purpose. To fasten the canopy 12 using the hexagon screw, the screw shaft is inserted through an opening 54 in a fastening plate 16 of the canopy 12 and from there through the central, first base body opening 100.1. The screw is then screwed with its external thread into the internal thread of the internally threaded bore of the central, first opening 14.1, also referred to as the first fastening means, of the elongated fastening body (threaded plate) 26 and tightened there. The fastening plate 16 can be provided with a recess or opening, preferably in the form of an elongated hole 54 extending along its longitudinal axis.The longitudinal axis of the elongated hole 54 can preferably extend perpendicular to the central fastening axis 28.1 of the first fastening means 14.1 of the elongated fastening body 26 of the fastening assembly 15. The preferably flat support elements 95.1, 95.2 of the support bodies 92.1, 92.1, preferably designed as support tabs, of the clamping body 31 of the fastening assembly 15 can be received in the elongated hole 54 (Fig. Figure 2.2 ).

[0063] The fastening unit 15 comprises the clamping body 31, the elongated fastening body (threaded plate) 26 and the first connecting means (cylinder head screws 23.1, 23.2), by means of which the clamping body 31 of the fastening unit 15 and the elongated fastening body 26 of the fastening unit 15 are connected to one another in a fixed but releasable manner and movable relative to one another.

[0064] The elongated fastening body 26 of the fastening assembly 15 extends along the fastening body longitudinal axis 27 of the elongated fastening body 26 in a fastening body longitudinal direction 51. The elongated fastening body 26 of the fastening assembly 15 is a flat plate (threaded plate).

[0065] The elongated fastening body (threaded plate) 26 of the fastening assembly 15 has the first fastening means 14.1 in the form of a central first bore (threaded bore) provided with a first internal thread for releasably fastening the first connecting means 22 in the form of a rod-shaped second fastening body with an external thread matching the internal thread of the first fastening means 14.1, for example the hexagon screw shown, for fastening the connecting part, here the canopy 12, on one of the end faces 47.1.1, 47.2.1 of the room unit 11.1, 11.2 to at least one corner connecting hollow body 20.1, 20.2 of the room unit 11.1, 11.2 by means of the fastening assembly 15. The elongated fastening body 26 of the fastening assembly 15 has a fastening body center 52. The fastening body longitudinal axis 27 of the elongated fastening body 26 of the fastening assembly 15 extends through the fastening body center 52 orcontains the fastening body center 52. The first fastening means of the elongated fastening body (threaded plate) 26 of the fastening assembly 15, designed as a central first threaded bore 14.1, extends along its first bore axis or along a first fastening axis (bore longitudinal axis) 28.1 in an axial direction perpendicular to the fastening body longitudinal axis 27. The first bore axis or fastening axis or bore longitudinal axis 28.1 of the central first bore (threaded bore) 14.1 provided with the first internal thread extends through the fastening body center 52 or contains the fastening body center 52 of the elongated fastening body (plate) 26 of the fastening assembly 15.

[0066] The elongated fastening body (threaded plate) 26 of the fastening assembly 15 has a second fastening means 14.2 in the form of a second bore (second threaded bore) provided with a second internal thread for releasably fastening a second connecting means in the form of a first cylinder head screw 23.1, by means of which the clamping body (centering plate) 31 of the fastening assembly 15 is fixedly, yet releasably, and movable or displaceable relative to the elongated fastening body 26 of the fastening assembly 15. The elongated fastening body 26 of the fastening assembly 15 has a third fastening means 14.3 in the form of a third bore (third threaded bore) provided with a third internal thread for releasably fastening a second connecting means in the form of a second cylinder head screw 23.2, by means of which the clamping body 31 of the fastening unit 15 is fixedly, but releasably and movable or displaceably fastened to the elongated fastening body 26 of the fastening unit 15. The second bore or internally threaded bore 14.2 extends along its second bore longitudinal axis 28.2 and the third bore or internally threaded bore 14.3 extends along its third bore longitudinal axis 28.3 parallel to the third bore longitudinal axis of the third bore 14.3 and each extend parallel to the fastening axis or the first bore longitudinal axis 28.1 of the central first bore 14.1 of the elongated fastening body 26 of the fastening assembly 15. The second bore longitudinal axis 28.2 of the second bore (threaded bore) has a bore distance 48 to the third bore longitudinal axis 28.3 of the third bore (threaded bore) 14.3.

[0067] The second bore longitudinal axis 28.2 of the second bore (threaded bore) 14.2 has a first bore distance 48.1 from the first bore longitudinal axis 28.1 of the central first bore (threaded bore) 14.1, and the third bore longitudinal axis 28.3 of the third bore (threaded bore) 14.3 has a second bore distance 48.2 from the first bore longitudinal axis 28.1 of the central first bore (threaded bore) 14.1, which second bore distance is the same as the first bore distance 48.1. The first bore longitudinal axis 28.1 of the first bore (threaded bore) 14.1 of the elongated fastening body (threaded plate) 26 containing the fastening body center 52 of the elongated fastening body (plate) 26 of the fastening assembly 15, the second bore longitudinal axis 28.2 of the second bore (threaded bore) 14.2 of the elongated fastening body (threaded plate) 26 and the third bore longitudinal axis 28.3 of the third bore (threaded bore) 14.3 of the elongated fastening body (threaded plate) 26 are arranged in a common bore plane 53. This bore plane 53 corresponds in . Figure 4.4 the leaf level.

[0068] The elongated fastening body 26 of the fastening assembly 15 has two flat, in particular planar, fastening body main surfaces 65.1, 65.2, which extend parallel to one another and at a fastening body main surface distance 66, as well as away from one another in opposite directions. The elongated fastening body 26 of the fastening assembly 15 has a fastening body thickness 67 essentially throughout. The fastening body thickness 67 corresponds to the fastening body main surface distance 66. The fastening body thickness 66 is, for example, approximately 20 mm. The first bore longitudinal axis 28.1 of the central first bore (threaded bore) 14.1, the second bore longitudinal axis 28.2 of the second bore (threaded bore) 14.2 and the third bore longitudinal axis 28.3 of the third bore (threaded bore) 14.3 extend perpendicular to the fastening body main surfaces 65.1, 65.2 of the elongated fastening body (threaded plate) 26 of the fastening assembly 15. The elongated fastening body (plate) 26 of the fastening assembly 15 has a fastening body length 69, preferably 77 mm. The elongated fastening body 26 (plate) of the fastening assembly 15 has a fastening body width 70, preferably approximately 45 mm. The front edges 71.1, 71.2 of the elongated fastening body 26 are rounded. As a result, the elongated fastening body 26 has an oval outer contour 73 (see . Figures 4 , 4.1 and 4.3 ).

[0069] The elongated fastening body 26 of the fastening assembly 15 is formed symmetrically to a fastening body longitudinal symmetry plane 74 containing the fastening body longitudinal axis 27, and symmetrically to a fastening body transverse symmetry plane 75, which is perpendicular to the fastening body longitudinal symmetry plane 74 and contains the fastening body center 52, and which is arranged parallel to the fastening axis or parallel to the first, second, and third bore longitudinal axes 28.1, 28.2, 28.3 of the first, second, and third bores (threaded bores) 14.1, 14.2, 14.3. The fastening body longitudinal symmetry plane 74 and the fastening body transverse symmetry plane 75 intersect at a straight line 76 containing the fastening body center 52.

[0070] The clamping body 31 of the fastening assembly 15 is made from a single piece of sheet metal. It can also be referred to as a centering plate. The clamping body 31 of the fastening assembly 15 is designed symmetrically to a clamping body longitudinal symmetry plane 77, which contains a clamping body center 79 or a base body center 91 of a base body 70 of the clamping body 31 and which extends perpendicular to the base body 70 or perpendicular to its base body main surfaces 81.1, 81.2, which extend away from one another in opposite directions. The clamping body 31 of the fastening assembly 15 is also designed symmetrically to a clamping body transverse symmetry plane 78, which contains the clamping body center or base body center 91 of the clamping body 31 and is arranged perpendicular to the clamping body longitudinal symmetry plane 77.

[0071] The clamping body 31 of the fastening assembly 31 comprises the elongated, plate-shaped or flat base body 80, which extends in a base body longitudinal direction 82 along a base body longitudinal axis 83 of the base body 80. The base body 80 is arranged opposite the elongated fastening body 26 of the fastening assembly 15. The base body 80 is symmetrical to a base body longitudinal symmetry plane 84 containing the base body longitudinal axis 83 and symmetrical to a base body transverse symmetry plane 85, which is arranged normal to the base body longitudinal symmetry plane 84 and which contains the base body center 91.

[0072] The base body longitudinal axis 83 of the elongated base body 80 of the clamping body 31 of the fastening assembly 15 is arranged perpendicular to the fastening body longitudinal axis 27 of the elongated fastening body 26 of the fastening assembly 15 (see Figure 4.1). The base body has the central first base body opening or base body bore 100.1 for the passage of the first connecting means 22, i.e., in this case, the hexagon screw 22. When the rod-shaped second fastening body in the form of the screw shaft of the hexagon screw 22 is screwed by means of its external thread into the first internal thread of the central first bore (threaded bore) 14.1 of the elongated first fastening body (threaded plate) 26, the rod-shaped first fastening body or the screw shaft of the hexagon screw 22 extends parallel to the fastening axis 28.1 through the central first base body opening or first base body bore 100.1 with radial play. The first base body opening or bore 14.1 encloses or contains the base body center 91 of the base body 80.

[0073] The clamping body (centering plate) 31 of the fastening assembly 15 has clamping means 32.1, 32.2 for clamping the fastening device or the fastening assembly 15 to the counter-wall parts of the opening edges 40; 40.1, 40.2, 40.3, 40.4 of the respective elongated opening 38.2 or 38.2 of the respective corner connecting hollow body 20.1, 20.2. The clamping means are a first spring-elastic clamping body in the form of a first spring-elastic clamping tab 32.1 and a second spring-elastic clamping body in the form of a second spring-elastic clamping tab 32.2. The first clamping tab 32.1 and the second clamping tab 32.2 are each fastened in one piece to the base body 80 on the narrow or first sides 86.1.1, 86.1.2 of the base body 80 extending away from each other in opposite directions.

[0074] The spring-elastic first clamping tab 32.1 extends outwardly 17 from the base body 80 and from the elongated fastening body 26 of the fastening assembly 15 in an axial, first clamping body direction 87.3 and also extends away from the base body 80 in a radial, first direction 87.4 from the base body center 91 of the base body 80. The spring-elastic second clamping tab 32.2 extends outwardly 17 from the base body 80 and from the elongated fastening body 26 of the fastening assembly 15 in an axial, second clamping body direction 87.5 and also extends away from the base body 80 in a radial, second direction 87.6 from the base body center 91 of the base body 80. The first clamping tab 32.1 and the second clamping tab 32.2 are each inclined, each enclosing an equally large first angle 88.1, 88.2 to the base body 80, respectively.to its main body surface 81.2 facing away from the elongated fastening body 26, over the base body 80, in a clamping body direction 89.1, 89.2 away from the elongated fastening body (threaded plate) 26 or from the base body 80 of the fastening assembly 15. Preferably, the respective angle 88.1, 88.2 is approximately 75 degrees.

[0075] The spring-elastic first clamping tab 32.1 and the spring-elastic second clamping tab 32.2 are attached to the base body 80 offset from one another by an angle of 90 of 180 degrees around the base body center 91 of the base body 80 or around the fastening axis 28.1. The clamping body (centering plate) 31 of the fastening assembly 15 has, in addition to the clamping means, i.e., in addition to the two spring-elastic clamping tabs 32.1, 32.2, support means 92.1, 92.2 for supporting the clamping body 31 of the fastening assembly 15 on the corner connection hollow body 20.1, 20.2 in the region of the elongated opening 38.2 on an outer side of the corner connection hollow body 20.1, 20.2 against a particularly axial movement of the clamping body 31 of the fastening assembly 15 and / or the elongated fastening body 26 of the fastening assembly 15 into the cavity 36 of the corner connection hollow body 20.1, 20.2, which are fastened in one piece or integrally to the base body 80.The support means are a first spring-elastic support body in the form of a first support tab 92.1 and a second spring-elastic support body in the form of a second support tab 92.2. These are each fastened in one piece or integrally to the base body 80 on the wide or second sides 86.2.1, 86.2.2 of the base body 80, which extend away from one another in opposite directions. The spring-elastic first support tab 92.1 extends outward from the base body 80 of the clamping body 31 of the fastening assembly 15 and from the elongated fastening body 26 of the fastening assembly 15 with a first spacing body in the form of a first spacing tab 93.1 in an axial first support body direction 89.3. In addition, the spring-elastic first support tab 93.1 extends from the base body 80 of the clamping body 31 of the fastening assembly 31 in a radial first support body direction 89.4 away from the base body center of the base body. The resilient second support tab 92.2 extends outwardly from the base body 80 of the clamping body 31 of the fastening assembly 15 and from the elongated fastening body 26 of the fastening assembly 15 with a second spacing body in the form of a second spacing tab 93.2 in an axial second direction 89.5. Furthermore, the resilient second support tab 93.2 extends from the base body 80 of the clamping body 31 of the fastening assembly 15 in a radial second direction 89.6 away from the base body center 91 of the base body 80. The first spacing tab 93.1 and the second spacing tab 93.2 are each inclined, each enclosing an equally large first angle 100.1, 100.2 to the base body 80, or to its main surface 81 facing away from the elongated fastening body 26.2, over the base body 80, in a support body direction 89.1, 89.2 away from the elongated fastening body (threaded plate) 26 or from the base body 80 of the fastening assembly 15. Preferably, the respective angle 100.1, 100.2 is approximately 75 degrees.

[0076] The spring-elastic first support bracket 92.1 and the spring-elastic second support bracket 92.2 are attached to the base body 80 offset from one another by an angle 94 of 180 degrees around the base body center 91 of the base body 80. Each support bracket 92.1, 92.2 is designed as a support bracket with an L-shaped cross section. Each spacing body 93.1, 93.2 extends from the base body 80 and from the elongated fastening body 26 of the fastening assembly 15 to a spacing body end 94.1, 94.2, to which a support element 95.1 of the respective support tab 92.1 is fastened in one piece, which support element 95.1 serves to support the clamping body 31 of the fastening assembly 15 on the corner connection hollow body 20.1, 20.2 in the region of the associated elongated opening 38.2 on an outer side or outer surface of the associated corner connection hollow body 20.1, 20.2 serves to prevent a preferably axial movement of the clamping body 31 of the fastening assembly 15 and / or the elongated fastening body 26 of the fastening assembly 15 into the cavity 36 of the corner connection hollow body 20.1, 20.2. Each support element 95.1, 95.2 extends radially away from the base body center 91 of the base body 80, transversely to the associated spacing body 94.1, 94.2, and forms a free end of the respective support body 92.1, 92.2. Each spring-elastic clamping body 32.1, 32.2 is arranged offset from the spring-elastic support body 92.1, 92.2 immediately adjacent in the circumferential direction by an angle 96.1, 96.2, 96.3, 96.4 of 90 degrees around the base body center 91 of the base body 80.

[0077] The second connecting means of the fastening assembly 15 is a separate second connecting body 23.1 extending along a first connecting body longitudinal axis 34.1, and a separate second connecting body 23.2 extending along a second connecting body longitudinal axis 34.2. The first connecting body is a first threaded screw in the form of a cylinder head screw 23.1. The second connecting body 23.2 is a second threaded screw in the form of a second cylinder head screw 23.2. The first cylinder head screw 23.1 is screwed with its first external thread into the second internal thread of the second bore (threaded bore) 14.2 of the elongated fastening body (threaded plate) 26. The second cylinder head screw 23.2 is screwed with its second external thread into the second internal thread of the third bore (threaded bore) 14.3 of the elongated fastening body 26 (threaded plate). The first cylinder head screw 23.1 and the second cylinder head screw 23.2 each have a cylinder head and a screw shaft with an external thread extending away from it.

[0078] In order to enable axial movement of the clamping body (centering plate) 31 of the fastening assembly 31 relative to the elongated fastening body (plate) 26, the base body 80 of the clamping body 31 of the fastening assembly 15 has a second base body opening in the form of the second bore (threaded bore) 100.2 for receiving the first connecting body 23.1 and a third base body opening in the form of the third bore (threaded bore) 100.3 for receiving the second connecting body 23.2. The second base body opening or the second base body bore 100.2 and the third base body opening or the third base body bore 100.3 are arranged, viewed in the direction of the base body longitudinal axis 83, at an opening distance 97 from one another on both sides of the base body center 91 or the opening center 98 of the central first opening 14.1 of the base body 80 of the clamping body 31 of the fastening assembly 15.The first cylinder head screw 23.1 extends with its first screw or external thread shank axially or parallel to the fastening axis 28.1 with radial play through the second base body opening 14.2 of the base body 80 such that its first screw head (cylinder head) is arranged on the base body side (main body surface 81.2) of the base body 80 facing outward 17 away from the elongated fastening body (threaded plate) 26 of the fastening assembly 15, opposite the second opening edges of the second base body opening 100.2. The second cylinder head screw 23.2 extends with its second screw or external thread shank axially or parallel to the fastening axis 28.1 with radial play through the third base body opening 100.3 of the base body 80 in such a way that their second screw head (cylinder head) is arranged on the base body side (main body surface 81.2) of the base body 80 facing outwards 17 away from the elongated fastening body (threaded plate) 26 of the fastening assembly 15, opposite the third opening edges of the third base body opening 100.3 there.

[0079] The first connecting body longitudinal axis 34.1 of the first connecting body or the first cylinder head screw 23.1 and the second connecting body longitudinal axis 34.2 of the second connecting body or the second cylinder head screw 23.2 extend parallel to one another in a common plane 99. The opening distance 97 of the second and third base body openings or base body bores 100.2, 100.3 of the base body 80 is the same size as the bore distance 48 of the second bore longitudinal axis 28.2 of the second bore (threaded bore) 14.2 and the third bore longitudinal axis (threaded bore) 28.3 of the third bore or threaded bore 14.3 of the elongated fastening body (threaded plate) 26 of the fastening assembly 15.

[0080] Due to the above measures, the clamping body 31 of the fastening assembly 15 and the elongated fastening body 26 of the fastening assembly 15 are movable along the first connecting body longitudinal axis 34.1 and along the second connecting body longitudinal axis 34.2 relative to one another parallel to the fastening axis 28.1 or parallel to the second and third opening longitudinal axes 28.2, 28.3 of the second and third openings (bores) 14.2, 14.3 of the elongated fastening body 26 (threaded plate).

[0081] The first and second screw shafts of the first and second cylinder head screws 23.1, 23.2 have a first and second screw shaft length such that the respective cylinder head screw 23.1, 23.2 can be unscrewed so far from the associated second and third internal thread of the second and third openings 14.2, 14.3 of the elongated fastening body (threaded plate) 26 of the fastening assembly 15 that when the elongated fastening body (threaded plate) 26 of the fastening assembly 15 is moved or inserted in its inserted and pushed-through position 29 from the outside through the elongated opening 38.2 into the cavity 36 of the corner connecting body 20.2, that the elongated fastening body 26 of the fastening assembly 15 arranged in the cavity 36 can be manually removed with the aid of the still at least partially or completely outside the Corner connection hollow body 20.2 arranged clamping body 31 of the fastening assembly 15 can be transferred or rotated from its insertion and push-through position 29 into the locking position 30 without the aid of another assembly aid.

[0082] The following is based on the Figures 5.1 to 5.4 a method for mounting the fastening device 13 or the fastening assembly 15 according to the invention of the arrangement 10 according to the invention on the corner connection hollow body 20.2 of the spatial cell 11.1, 11.2 of the arrangement 10 according to the invention is described.

[0083] In the Figure 5.1the arrangement 10 according to the invention is shown in a pre-assembly position 55 of the fastening assembly 15 according to the invention, in which the latter is arranged completely outside the corner connection hollow body 20.2 and in which the elongated fastening body (threaded plate) 26 of the fastening assembly 15 is in an insertion and through-insertion position 29, in which it can be manually inserted with the aid of the clamping body (centering plate) 31 of the fastening assembly 15 into and through the elongated opening (slot) 38.2 of the associated corner connection hollow body 20.2 into its cavity 36.

[0084] Starting from this pre-assembly position 100, the fastening assembly 15 is manually inserted with the aid of the clamping body (centering plate) 31 of the fastening assembly 15 by manually holding or gripping the clamping body 31 at its clamping means 32.1, 32.2 and / or at its supporting means 92.1, 92.2 with the elongated fastening body 26 of the fastening assembly 15 located in the insertion and through-insertion position 29 in front without the aid of any other assembly aid through the elongated opening 38.2 of the corner connection hollow body 20.2 into the cavity 36 of the corner connection hollow body 20.2 at least so far into the cavity 36 of the corner connection body 20.2 that the elongated fastening body arranged in the cavity 36 26 of the fastening assembly 15 manually with the aid of the still at least partially or completely outside the corner connection hollow body 20.2 arranged clamping body 31 of the fastening unit 15 without the aid of any other assembly aid from the insertion and push-through position 29 into the example shown in . Figure 5.3 shown locking position 30. Then a first intermediate assembly position 57.1 of the fastening unit 31 is reached, which Figure 5.2 is illustrated.

[0085] Subsequently, the elongated fastening body 26 is manually transferred or rotated with the aid of the clamping body 31, preferably by rotating it about the fastening axis 28.1, from the insertion and push-through position 15 into a locking position 30, in which the fastening body longitudinal axis 27 of the elongated fastening body 26 is arranged transversely, preferably perpendicularly, to the opening longitudinal axis 41.2 of the second opening 38.2 of the corner connection hollow body 20.2, so that the fastening assembly 15 is locked to the corner connection hollow body 20.2 against being pulled outwards 17 from the second opening 38.2. A second intermediate assembly position 57.2 is then reached, which in Figure 5.3 is illustrated.

[0086] At the same time or subsequently, the clamping body 31 of the fastening assembly 15 is moved or drawn in with the aid of the second connecting means of the fastening assembly 15, i.e. in the exemplary embodiment by turning the two cylinder head screws 23.1, 23.2 using a suitable tool, in particular an Allen key, about their longitudinal screw axes 34.1, 34.2, in a direction of rotation causing screwing in, axially or essentially parallel to the fastening axis 28.1 in the direction of the elongated fastening body 26 of the fastening assembly 15, which is preferably already in contact with an inner side of the outer wall part 37.2 of the corner connecting hollow body 20.2 in the locking position 30, such that the clamping body 31 of the fastening assembly 15 together with its clamping means 32.1, 32.2 and its supporting means 92.1, 92.2 largely extends into the elongated opening 38.2 of the corner connecting hollow body 20.2 is pulled in, that the clamping body 31 of the fastening assembly 15 by means of its clamping means 31.1, 32.2 and its supporting means 92.1, 92.2 on and with the counter-wall parts of the opening edges 40; 40.1, 40.2, 40.3, 40.4 of the elongated opening 38.2 forming wall parts of the outer wall part 37.2 of the corner connection hollow body 20.2 is firmly clamped against a movement of the clamping body 31 of the fastening assembly 15 relative to the elongated opening 38.2, wherein the support elements 95.1, 95.2 of the support means 92.1, 92.2, which extend with their free support ends radially away from the fastening axis 28.1, rest in a supported manner on the outer side or outer surface 42.2 of the outer wall part 37.2 of the corner connection hollow body 20.2 assigned to the second opening 38.2.In the course of this or subsequently, the clamping body 31 of the fastening unit 15 and the elongated fastening body 26 of the fastening unit 15 can or will be clamped against one another in the direction shown in , using the second connecting means of the fastening unit, i.e. by tightening the two cylinder head screws 23.1, 23.2, preferably directly adjacent to one another. Figure 5.3 shown final assembly position 60 be clamped or clamped. List of reference symbols

[0087] 10 Arrangement 11.1 Room unit (left, wide) 11.2 Room unit (right, narrow) 12 Connecting part / canopy 13 Fastening device 14.1 (first) fastening element / (central, first) opening / internal threaded hole (in 26) 14.2 (second) fastening element / (second) opening / internal threaded hole (in 26) 14.3 (third) fastening element / (third) opening / internal threaded hole (in 26) 15 Fastening assembly 16 Fastening plate (from or for 12) 17 Arrow (outwards or away from 36) 18 Frame corner 19 Room corner 20.1 Corner connection hollow body (1st design variant) 20.2 Corner connection hollow body (2nd design variant) 21Room cell longitudinal axis 22(first) connecting element / (first) fastening element / (central) hexagon screw 23.1(second) connecting element / (second) fastening element / cylinder head screw 23.2(second) connecting element / (third) fastening element / cylinder head screw 24Room cell longitudinal direction 25.1Installation / use position of 25.1 26 Fastening body / plate / threaded plate 27 Fastening body longitudinal axis 28.1 (central, first) fastening axis / (first) bore longitudinal axis 28.2 (second) bore longitudinal axis of 14.2 28.3 (third) bore longitudinal axis of 14.3 29 Insertion and push-through position of 26 30 Locking position of 26 31 Clamping body 32.1 (first) clamping means of 31 / (spring-elastic) clamping body 32.2 (second) clamping means of 31 / (spring-elastic) clamping body 34.1 (first) connecting body longitudinal axis of 23.1 34.2 (second) connecting body longitudinal axis of 23.2 35 Hollow body longitudinal axis 36 Cavity 37.1 (first) outer wall section 37.2 (second) outer wall section 37.3 (third) outer wall section 37.4 (fourth) (lower) outer wall section 37.5 (fifth) outer wall section 37.6 (sixth) outer wall section 38.1 first opening / slot 38.2 second opening / slot 38.3 third opening / slot 39.1 first outer wall longitudinal axis of 37.1 39.2 second outer wall longitudinal axis of 37.2 39.3 third outer wall longitudinal axis of 37.3 40 Perforation edge 40.1 Perforation edge (longitudinal, left) 40.2 Perforation edge (longitudinal, right) 40.3 Perforation edge (transverse, top) 40.4 Perforation edge (transverse, bottom) 41.1 First perforation longitudinal axis 41.2 Second perforation longitudinal axis 41.3 Third perforation longitudinal axis 42.2 Outer side / outer surface (of 37.2) 43.1.1 (first) perforation length of 38.1 43.1.2 (first) perforation width of 38.1 43.2.1 (second) perforation length of 38.2 43.2.2 (second) perforation width of 38.3 43.3.1 (third) opening length of 38.3 43.3.2 (third) opening width of 38.3 44 Longitudinal (mirror) symmetry plane of the opening 45 Transverse (mirror) symmetry plane of the opening 46.1 First inner contour of 38.1 46.2 Second inner contour of 38.2 46.3 Third inner contour of 38.3 47.1.1 (narrow) end face of 11.1 47.1.2 Longitudinal side / (wide / long) end face of 11.1 47.2.1 (narrow) end face of 11.2 47.2.2 Longitudinal side / (wide / long) end face of 11.2 48 Opening / bore distance (28.2 to 28.3) 48.1 (first) opening / bore spacing (28.2 to 28.1) 48.2 (second) opening / bore spacing (28.3 to 28.1) 49 Opening center 51 Fastener longitudinal direction 52 Fastener center 53 Bore plane 54 Opening / elongated hole (in 16) 55 Pre-assembly position 57.1 (first) intermediate assembly position 57.2 (second) intermediate assembly position 60 Final assembly position 65.1 (first) fastener main surface 65.2 (second) fastener main surface 66 Fastener main surface spacing 67 Fastener thickness 69Fastening body length 70Fastening body width 71.1(first) front edge of 26 71.2(second) front edge of 26 73(oval) outer contour of 26 74Fastening body longitudinal (mirror) symmetry plane 75Fastening body transverse (mirror) symmetry plane 76Straight line (contains center 52) 77Clamping body longitudinal (mirror) symmetry plane 78Clamping body transverse (mirror) symmetry plane 79Clamping body center 80Base body of 31 81.1(first) main surface of the base body of 80 81.2(second) main surface of the base body of 80 82Longitudinal direction of the base body 83Longitudinal axis of the base body 84Longitudinal (mirror) symmetry plane of the base body 85Transverse (mirror) symmetry plane of the base body 86.1.1(first) (narrow) (first) side of 80 86.1.2(second) (narrow) (first) side of 80 86.2.1(first) (wide) (second) side of 80 86.2.1(second) (wide) (second) side of 80 87(radial) (second) direction 88.1Angle 88.2Angle 89.1Clamping body direction (in which the clamping lug 32.1 is inclined over the base body 80 protrudes) 89.2Clamping body direction (in which the clamping tab 32.2 protrudes obliquely over the base body 80) 89.3(axial) (first) support body direction (in which the first support tab 92.1 extends outwards 17 away from the base body 80 with the first spacing tab 93.1) 89.4(radial) (first) support body direction (in which the first support tab 92.1 extends from the base body 80 away from the base body center 91). 89.5 (axial) (second) support body direction (in which the second support tab 92.2 extends outwardly 17 away from the base body 80 with the second spacing tab 93.2) 89.6 (radial) (second) support body direction (in which the second support tab 93.2 extends away from the base body 80 from the base body center 91.) 90 Angle (180 degrees) (32.1 to 32.2) 91 Base body center 92.1 (first) support means / (first) support body / (first) support tab 92.2 (second) support means / (second) support body / (second) support tab 93.1 (first) spacing body / spacing tab 93.2 (second) Spacer body / spacer tab 94Angle (180 degrees between 92.1 and 92.2) 94.1(first) spacer body end 94.2(second) spacer body end 95.1(first) support element of 92.1 95.2(second) support element of 92.1 96Angle (90 degrees) (between 32 and 92) 97Opening distance (between 14.1 and 14.2) 98Opening center 99Plane 100.1(first, central) basic body opening 100.2(second) basic body opening 100.3(third) basic body opening.

Claims

1. An arrangement (10) comprising a corner-connecting hollow body (20.1, 20.2) of a room cell (11.1, 11.2) and comprising a fastening device (13) for fastening a connecting part (12) to the corner-connecting hollow body (20.1, 20.2) of the room cell (11.1, 11.2), wherein the corner-connecting hollow body (20.1, 20.2) has outer wall parts (37.1, 37.2, 37.3, 37.4, 37.5, 37.6), which border a cavity (36) of the corner-connecting hollow body (20.1, 20.2), and wherein at least one outer wall part (37.2) of the outer wall parts (37.1, 37.2, 37.3, 37.4, 37.5, 37.6) of the corner-connecting hollow body (20.1, 20.2) have an oblong perforation (38.2), which extends along a perforation longitudinal axis (41.2) of the oblong perforation (38.2), and which is bordered by wall parts of the at least one outer wall part (37.2) of the corner-connecting hollow body (20.1, 20.2) formed by perforated edges (40; 40.1, 40.2, 40.3, 40.4), and which is outwardly (17) open on the one hand, and empties into the cavity (36) on the other, and wherein the fastening device (13) has an oblong fastening body (26), which extends along a fastening body longitudinal axis (27) of the oblong fastening body (26) and which has a first fastener (14.1) for detachably fastening a first connector (22) for fastening the connecting part (12) to the corner-connecting hollow body (20.1, 20.2) of the room cell (11.1, 11.2) by means of the fastening device (13), and wherein the oblong fastening body (26), in an insertion and push-through position (29), can be inserted from outside through the oblong perforation (38.2) of the corner-connecting hollow body (20.1, 20.2) until into the cavity (36) of the corner-connecting cavity (20.1, 20.2), and transferred into a locked position (30) inside of the cavity (36), so that, in the locked position (30), the oblong fastening body (26) reaches behind either a first perforated edge (40.1) of the perforated edges or a first perforated edge (40.1) of the perforated edges (40; 40.1, 40.2, 40.3, 40.4) and an opposing second perforated edge (40.2) of the perforated edges (40; 40.1, 40.2, 40.3, 40.4) of the oblong perforation (38.2), as a result of which the oblong fastening body (26) is locked to prevent an outward (17) movement from the cavity (36) of the corner-connecting hollow body (20.1, 20.2) through the oblong perforation (38.2) in a direction transverse or perpendicular to the fastening body longitudinal axis (27) of the oblong fastening body (26), and wherein the fastening device (13) has a clamping body (31) with clamps (32.1, 32.2) for tightly clamping the fastening device (13) to the perforated edges (40; 40.1, 40.2, 40.3, 40.4) of the oblong perforation (38.2) of the outer wall part (37.2) of the corner-connecting hollow body (20.1, 202), characterized in that the fastening device (13) comprises a fastening unit (15) or consists of a fastening unit (15), which contains the clamping body (31) and the oblong fastening body (26) as well as a second connector (23.1, 23.2), by means of which the clamping body (31) of the fastening unit (15) and the oblong fastening body (26) of the fastening unit (15) are connected firmly, but movably relative to each other.

2. The arrangement according to claim 1, characterized in that the clamping body (31) of the fastening unit (15) comprises an oblong base body (80), which extends along a base body longitudinal axis (83) of the base body (80), and which lies opposite the oblong fastening body (26) of the fastening unit (15).

3. The arrangement according to claim 2, characterized in that the base body longitudinal axis (83) of the oblong base body (80) of the clamping body (31) of the fastening unit (15) is arranged perpendicular to the fastening body longitudinal axis (27) of the oblong fastening body (26) of the fastening unit (15).

4. The arrangement according to claim 2 or 3, characterized in that the base body (80) has a first base body perforation (100.1) for passing through the first connector (22), and that the first fastener (14.1) of the oblong fastening body (26) involves either a first fastening body thread of the oblong fastening body (26) of the fastening unit (15), which extends along a first fastening axis (28.1) transverse or perpendicular to the fastening body longitudinal axis (27), wherein the first fastening axis (28.1) penetrates through the first base body perforation (100.1), or a rod-like third fastening body, which extends along a third fastening axis of the third fastening body transverse or perpendicular to the fastening body longitudinal axis, and which has a third fastening body thread, and which with its third fastening body thread in front is inserted through the first base body perforation with clearance.

5. The arrangement according to one of the preceding claims, characterized in that the second connector involves a separate, first connecting body (23.1) extending along a first connecting body longitudinal axis (34.1) and a separate, second connecting body (23.2) extending along a second connecting body longitudinal axis (34.2), and that the base body (80) has a second base body perforation (100.2) for accommodating the first connecting body (23.1) and a third base body perforation (100.3) for accommodating the second connecting body (23.2), which, viewed in the direction of the base body longitudinal axis (83) of the base body (80), are arranged at a perforation distance (48) relative to each other, and wherein the first connecting body (23.1) extends through the first base body perforation (100.1) with clearance, and wherein the second connecting body (23.2) extends through the second base body perforation (100.2) with clearance, such that the first connecting body longitudinal axis (34.1) and the second connecting body longitudinal axis (34.2) are arranged essentially parallel to each other, so that the clamping body (31) of the fastening unit (15) and the oblong fastening body (26) of the fastening unit (15) can be moved relative to each other along the first connecting body longitudinal axis (34.1) and along the second connecting body longitudinal axis (34.2).

6. The arrangement according to one of claims 2 to 5, characterized in that the clamps (32.1, 32.1) involve a first spring-loaded clamping body (32.1) and a second spring-loaded clamping body (32.2), which are each fastened to the base body, and which each extend away from the base body (80) and from the oblong fastening body (26) of the fastening unit (15) in a respective clamping body direction (89.1, 89.2).

7. The arrangement according to one of the preceding claims, characterized in that the clamping body (31) of the fastening unit (15) has supporters (92.1, 92.1) for supporting the clamping body (31) of the fastening unit (15) on the corner-connecting hollow body (20.1, 20.2) to prevent a movement by the clamping body (31) of the fastening unit (15) and / or of the oblong fastening body (26) of the fastening unit (15) into the cavity (36) of the corner-connecting hollow body (20.1, 20.2).

8. The arrangement according to claim 7, characterized in that the supporters involve a first spring-loaded support body (92.1) and a second spring-loaded support body (92.2), which each are fastened to the base body (80), and which each extend away from the base body (80) and from the oblong fastening body (26) of the fastening unit (15) with a respective distance mediator body (93.1, 93.2) in a supporter direction (89.3, 89.4, 89.5, 89.6).

9. The arrangement according to claim 8, characterized in that the first spring-loaded support body (92.1) and the second spring-loaded support body (92.2) are fastened to the base body (80) offset relative to each other by an angle (94) of 180 degrees around a base body center (91) or around the base body center (91) of the base body (80).

10. The arrangement according to claim 8 or 9, characterized in that the supporters (92.1, 92.2) are designed as L-shaped support bodies, wherein the respective distance mediator body (93.1, 93.2) extends away from the base body (80) and from the oblong fastening body (26) of the fastening unit (15) up until a distance mediator body end (94.1, 94.2), to which is fastened a respective support element (95.1, 95.2) for supporting the clamping body (31) of the fastening unit (15) to the corner-connecting hollow body (20.1, 20.2), so as to prevent the clamping body (31) of the fastening unit (15) and / or the oblong fastening body (26) of the fastening unit (15) from moving into the cavity (36) of the corner-connecting hollow body (20.1, 20.2), and wherein the support element (95.1, 95.2) extends away from the base body center (91) of the base body (80), respectively transverse to the accompanying distance mediator body (93.1, 93.2).

11. The arrangement according to one of claims 6 to 10, characterized in that the spring-loaded support bodies (92.1, 92.2) and the spring-loaded clamping bodies (32.1, 32.2) are tailored to each other in such a way that, if the fastening unit (15) has been transferred into a final assembly position (60), in which the oblong fastening body (26) of the fastening unit (15) is arranged in the cavity (26) of the corner-connecting hollow body (20.1, 20.2) in the locked position (30), and in which the oblong fastening body (26) of the fastening unit (15) is braced with the help of the second connector (23.1, 23.2) against the corner-connecting hollow body (20.1, 20.2), the support elements (95.1, 95.2) of the supporters (92.1, 92.2) are supported against an exterior side or outer surface (42.2) of the at least one outer wall part (37.2) of the corner-connecting hollow body (20.1, 20.2), and the clamping bodies (32.1, 32.2) are firmly clamped to the perforated edges (40) of the oblong perforation (38.2).

12. The arrangement according to one of claims 6 to 11, characterized in that each spring-loaded clamping body (32.1, 32.2) is arranged offset by an angle (96) of 90 degrees around the base center (91) of the base body (80) relative to the spring-loaded support body (92.1, 92.2) directly adjacent in the circumferential direction.

13. The arrangement according to one of claims 6 to 12, characterized in that the clamping body (31) of the fastening unit (1) is designed essentially symmetrically to a clamping body longitudinal symmetrical plane (77) containing the base body longitudinal axis (83), and essentially symmetrically to a clamping body transverse symmetrical plane (85), which extends normal to the clamping body longitudinal symmetrical plane (78), and which intersects the base body longitudinal axis (83) in the base body center (91) of the base body (80), and that the perforation (38.2) is designed essentially symmetrically to a perforation longitudinal symmetrical plane (44) containing the perforation longitudinal axis (41.2), and essentially symmetrically to a perforation transverse symmetrical plane (45), which extends normal to the perforation longitudinal symmetrical plane (44), and which intersects the perforation longitudinal axis (41.2) in a perforation center (49) of the perforation (38.2).

14. An assembly arrangement comprising an arrangement (10) according to one of the preceding claims and comprising a connecting part (12), which is fastened by means of the first connector (22) to the first fastener (14.1) of the oblong fastening body (26) of the fastening unit (15) of the corner-connecting hollow body (20.1, 20.2) of the room cell (11.1, 11.2).

15. A method for assembling the fastening unit (15) of the arrangement (10) according to one of claims 1 to 14 to the corner-connecting hollow body (20.1, 20.2) of the room cell (11.1, 11.2) according to one of claims 1 to 15, characterized in that the fastening unit (15) is manually inserted, with the help of the clamping body (31) of the fastening unit (15), with the oblong fastening body (26) of the fastening unit (15) located in the insertion and push-through position (29) in front, through the oblong perforation (38.2) of the corner-connecting hollow body (20.1, 20.2) until into the cavity (36) of the corner-connecting hollow body (20.1, 20.2) so far into the cavity (36) of the corner-connecting body (20.1, 20.2) that the oblong fastening body (26) of the fastening unit (15) arranged in the cavity (36) can be manually transferred with the help of the clamping body (31) of the fastening unit (15) still arranged at least partially or completely outside of the corner-connecting hollow body (20.1, 20.2) from the insertion and push-through position (29) into the locked position (30), wherein or according to which the oblong fastening body (26) of the fastening unit (15) arranged in the cavity (36) is manually transferred with the help of the clamping body (31) of the fastening unit (15) from the insertion and push-through position (29) into the locked position (30), wherein or according to which the clamping body (31) of the fastening unit (15) is moved with the help of the second connector (23.1, 23.2) of the fastening unit (15) in the direction toward the oblong fastening body (26) of the fastening unit (15), such that the clamping body (31) of the fastening unit (15) together with its clamps (32.1, 32.2) is moved into the oblong perforation (38.2) of the corner-connecting hollow body (20.1, 20.2) so far that the clamping body (31) of the fastening unit (15) is clamped by means of its clamps (32.1, 32.2) to the perforated edges (40; 40.3, 40.4) of the oblong perforation (38.2) of the outer wall part (37.2) of the corner-connecting hollow body (20.1, 20.1), wherein or according to which the clamping body (31) of the fastening unit (15) and the oblong fastening body (26) of the fastening unit (15) are braced against each other and / or or rigidly connected with each other with the help of the second connector (23.1, 23.2) of the fastening unit (15).

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