CONNECTION DEVICE WITH KEILING SYSTEM

Description

[0001] The invention relates to a connection device according to claim 1 for connection to a work space, comprising a first side wall, a second side wall opposite the first side wall and at least one ceiling element which, in the assembled state, connects the two side walls, preferably resting on both side walls.

[0002] For the purposes of this invention, a workroom is understood to be, in particular, a contaminated area. The invention is directed, for example, to workrooms in which asbestos-containing material or other hazardous substances are being mined.

[0003] The removal of asbestos-containing materials requires particularly stringent safety measures from a health perspective. Individual asbestos particles, when removed, are sometimes only a few micrometers in size and so light that they can remain suspended in the air and easily enter the lungs, posing a significant health risk.

[0004] Rooms contaminated with asbestos must be kept under constant negative pressure to prevent the asbestos from escaping the contaminated area during dismantling.

[0005] A connection device of this type is known, for example, from WO 2019 / 7025445 A1. It serves to provide access to a contaminated work area and is designed so simply that it can be easily transported and assembled and disassembled. The known connection device has two frames connected by a connecting sheet. The two frames form a passageway. One of the frames has a door. The other frame is connected to a passageway to the work area when the connection device is assembled. To allow the known connection device to be connected to passageways of different sizes, a connecting sheet is attached to the frame connected to the passageway and is attached to the wall forming the passageway. This allows differences in size to be bridged and a seal to be created.Further devices according to the prior art are disclosed in WO2011 / 051331A1, DE4110970A1, WO98 / 13564A1 and DE20003045U1.

[0006] The invention is based on the objective of further developing the known connection device in such a way that it can be set up and connected to the workspace even more easily.

[0007] The problem is solved by a connection device having the features of claim 1.

[0008] According to the invention, each side wall has a first keder strip into which a first tarpaulin is inserted or can be inserted. For this purpose, the first keder strip advantageously has an upper or lower receiving opening (in the assembled state, i.e., with the side wall vertical).

[0009] Preferably, the first keder strip extends along one side of the side wall. This is the side of each side wall facing the work area when the unit is assembled. The first tarpaulin can therefore bridge the transition from the connection device to the wall defining the work area in a short distance.

[0010] The first tarpaulin has a keder that interacts with the first keder rail. The keder forms a thickening that, when mounted, holds the first tarpaulin in the first keder rail. When mounted, the keder is recessed in the keder rail, and the first tarpaulin extends advantageously out of the first keder rail through an opening.

[0011] The first two tarpaulins make it possible to connect the connection device laterally to the wall bordering the workspace. Particularly advantageously, the first tarpaulins can also bridge and cover a passage that is larger laterally (horizontally) than the connection device (without tarpaulins), so that the connection device according to the invention can be connected to passages to workspaces of various widths.

[0012] The tarpaulins can be attached to the wall, for example, by gluing. Alternatively, the first tarpaulins can be fastened to the wall using screws or nails. A combination of methods is also possible.

[0013] According to the invention, the ceiling element has a second keder rail into which a second tarpaulin can be inserted or is inserted. Like the first tarpaulin, the second tarpaulin also has a keder that interacts with the second keder rail. In the assembled state, the keder is received and held in the second keder rail.

[0014] Preferably, the second keder strip extends along the back side of the ceiling element. The back side is the side of the ceiling element that faces the workspace when installed. The second strip can therefore bridge the transition from the connection device to the wall defining the workspace in a short distance.

[0015] The second keder rail, when assembled, extends upwards from the ceiling element for optimal accessibility. Alternatively, or in addition, the second keder rail can be designed with an opening for the second tarpaulin, which opens upwards when assembled. This opening thus advantageously dictates the direction of extension of the second tarpaulin.

[0016] Preferably, the second keder rail has two insertion openings located on opposite sides of the ceiling element. When assembled, one insertion opening is located near the first side wall, while the other is located near the second side wall. This allows the second tarpaulin to be inserted into the second keder rail from either side.

[0017] The connection device according to the invention can be assembled particularly quickly and easily due to the keder strips. This is also due in particular to the fact that the tarpaulins are not permanently attached to the side walls as in the prior art. Rather, the keder strips allow a high degree of flexibility during assembly.

[0018] The connection device according to the invention is preferably used in workrooms with at least one passageway. The connection device is designed and configured to be connected to the workroom in such a way that the workroom can be accessed through the connection device and the passageway.

[0019] An advantageous embodiment of the invention is characterized in that the first keder strip opens laterally from the respective side wall, preferably at a 90° angle, to allow the passage of the first tarpaulin.

[0020] This allows the first sheet to be attached particularly well to the wall that borders the workspace.

[0021] Preferably, the second keder rail opens upwards when the ceiling element is installed, allowing the second sheet to pass through. This ensures a particularly good connection between the second sheet and the wall bordering the workspace.

[0022] The tarpaulins can be installed on-site, either before or after the installation of the connection device. According to the invention, three tarpaulins are provided: two first tarpaulins and one second tarpaulin. The first two are assigned to the side walls and inserted into the first keder rails. The second tarpaulin is assigned to the ceiling element and inserted into the second keder rail. During installation, it is advantageous if the tarpaulins can be inserted into the keder rails without obstruction. Therefore, it is considered advantageous if the first and second keder rails are arranged offset from each other such that the insertion opening of the first keder rail is not obscured by the second keder rail. The insertion opening is thus freely accessible (in the imaginary extension of the first keder rail), allowing the first tarpaulin to be inserted into the first keder rail in a straight line.

[0023] It is equally advantageous if the first and second keder strips are arranged offset from each other in such a way that at least one insertion opening of the second keder strip is not obscured by the respective first keder strip. The at least one insertion opening is therefore freely accessible (in the imaginary extension of the second keder strip), so that the second tarpaulin can be inserted into the second keder strip in a straight line.

[0024] For example, the second awning rail is shorter than the maximum width of the cover. This means it doesn't interfere with inserting the first tarpaulin into the respective first awning rail.

[0025] It is also considered advantageous in this context if the first keder rail is shorter than the maximum height of the side wall. The first keder rail then does not interfere with inserting the second awning into the second keder rail. This is particularly true if the second keder rail is positioned above the first keder rail when the awning is set up, which is considered advantageous in itself.

[0026] An advantageous embodiment of the invention is characterized in that the first tarpaulin extends beyond the keder on at least one side. The first tarpaulin can therefore also cover an area that, in the assembled state, extends beyond the connecting device. Because the first tarpaulin has no keder in this area, it is more flexible.

[0027] Another advantageous embodiment of the invention is characterized in that the second tarpaulin extends beyond the keder on both sides. The second tarpaulin can therefore also cover an area that, in the assembled state, extends laterally beyond the connecting device, in particular laterally beyond the two side walls.

[0028] According to the invention, in the assembled state, the first tarpaulin extends beyond the first keder rail. According to the invention, in the assembled state, the second tarpaulin extends beyond the second keder rail on both sides. The tarpaulins are thus held only in the area of ​​the keder rails. This allows the first tarpaulin to extend over the ceiling element and the second tarpaulin to extend over the side walls.

[0029] According to the invention, the first and second tarpaulins overlap when assembled. This allows passageways to work areas to be covered or sealed, even if they are wider laterally and taller than the connecting device.

[0030] Besides a simple design, it is important that the connection device can be easily transported, which is ensured by the loose first and second tarpaulins. As mentioned above, it is possible to install them on site.

[0031] In a further advantageous embodiment, the first side wall and the second side wall each have a flat side wall element and two frame elements extending from the side wall element, wherein the first keder strip is fixed to one of the two frame elements or formed integrally with it. The flat side wall element can be made of a composite material. Preferably, it is made of plastic. The frame elements preferably extend at a right angle to the side wall element. They provide the side wall element with additional stability.

[0032] The frame elements preferably enclose the side wall element and can be made of metal. This results in a stable construction in which the first keder strip is fixed to one of the two frame elements or formed as an integral part of them.

[0033] Preferably, the side wall element and the two frame elements form a single unit. This unit can be pre-assembled, for example, by riveting, screwing, or gluing. The keder strips are then preferably an integral part of this structural unit.

[0034] When assembled, the two side walls laterally define the passage to the work area. Each is easily handled as a separate unit and can be carried by one person.

[0035] The connecting device preferably has at least one first base, which expediently forms a first support surface for the frame elements. During assembly, the support surfaces allow the frame elements to be arranged on the base so that they rest on them. This provides additional stability during assembly. Preferably, the base has a base plate from which the support surface is raised.

[0036] The floor serves to connect the side walls, which significantly contributes to the rigidity of the overall structure.

[0037] In a further development of the invention, the connecting device advantageously comprises at least one first locking device for connecting the first base to the first and / or the second side wall. In the assembled state, the at least one first locking device creates a secure connection between the side wall and the base. The first locking device can be released for disassembly.

[0038] According to the invention, a first locking device is sufficient for the detachable fastening of the side wall to the floor. This is preferably arranged centrally on the side wall element.

[0039] It is considered particularly advantageous if the at least one first locking device is arranged on at least one frame element. Since the floor preferably forms a bearing surface for the frame elements, the locking mechanism on the frame element creates a particularly stable connection between the frame element and the floor. Preferably, a first locking device is arranged on each frame element.

[0040] The frame elements preferably extend at a right angle from the side wall element. This gives the side wall exceptional stability. It also simplifies assembly. Because the frame elements extend at right angles from the side wall element, the side wall is able to stand independently when properly aligned.

[0041] An advantageous embodiment of the invention is characterized in that the two frame elements have mutually facing inner surfaces. Functional elements such as stiffeners and / or operating elements such as handles can be arranged between these facing inner surfaces without obstructing the passage formed by the two side walls. These inner surfaces can also be used, in particular, to advantageously accommodate the locking device(s) in a space-saving manner. Preferably, the at least one first locking device is arranged on at least one of the inner surfaces. Advantageously, it can be provided that at least one first locking device is arranged on each inner surface. By arranging the locking device on the inner surface, a direct connection of the respective frame element to the ground is achieved, resulting in an advantageous force transmission.

[0042] It should be noted here that locking elements can be designed in two or more parts. Therefore, whenever the invention refers to the locking device being arranged on a component, for example, on a frame element, this means that at least part of the locking device is arranged on this component. If the locking device includes an operating element for operating the locking device, this operating element is advantageously arranged on the frame element.

[0043] The first locking device is preferably designed as a locking tensioner with a lever part and a hook part. Such locking devices are known and, in the present invention, have the advantage that the hook part can be arranged on the bottom in a space-saving manner, while the lever part is attached to the side wall, or vice versa. Preferably, the lever part is arranged on the frame element, particularly on its inner side. The inner side provides sufficient space to operate the locking tensioner. A reverse arrangement is also possible.

[0044] In a preferred embodiment of the invention, the at least first base has a preferably circumferential base ledge. For the purposes of this invention, the term "base ledge" is to be understood as a raised area. This embodiment is advantageous in that the base ledge not only provides stability to the base but can also fulfill functional purposes. For example, the base ledge can form at least one recess for the side wall elements, as will be explained in more detail below. A further advantageous function can be achieved by having the frame elements rest on the base ledge when assembled. This creates a bearing surface for the frame elements, which not only simplifies the assembly of the side walls but also provides a stable construction. This is particularly true if the locking device is also attached to the frame elements.

[0045] Advantageously, each side wall comprises a flat side wall element and two frame elements connected to the side wall element, as described above. The frame elements expediently define the sides of each side wall element, thus providing protection for the element. The side wall element can be made of multiple parts. In a further development of the invention, it is proposed that the side wall element be designed as a composite panel. The composite panel has a smooth surface and is, for example, painted, which facilitates easy and thorough cleaning. Furthermore, contaminants adhere to smooth surfaces only to a very limited extent. Alternatively, the side wall element is made of plastic, for example, foamed PVC, which is also considered particularly advantageous.

[0046] The frame elements are advantageously made of metal, preferably aluminum or galvanized sheet metal. The same applies to the floor. Metal is durable, thus creating a stable structure that is also resistant to the elements on construction sites. In this respect, a combination of composite panel (side wall element) and metal (frame element and floor) is considered advantageous.

[0047] When assembling the connecting device, it should be ensured that the modular parts (base, side walls, etc.) are correctly positioned relative to each other. This facilitates assembly and creates a stable structure. In this context, it is proposed that at least the first base have two recesses into which the side wall elements engage when assembled. This ensures correct positioning. It is considered particularly advantageous if the recess is designed as a groove. The side wall element can then engage securely in the groove. The groove could, for example, be designed as an elongated groove. The interaction of the recess and the side wall element also ensures a good seal.

[0048] The recess is advantageously formed by the base ledge. The base ledge can be multi-part. It can also have several levels, extending at different heights from a base plate. It is particularly advantageous to provide both the aforementioned support for the frame elements and the recess for the side wall element.

[0049] An advantageous embodiment of the invention is characterized in that the side wall elements extend beyond the frame elements on at least one side in their plane of extension. The side wall elements thus project away from the frame elements. This allows them to engage in the recess with their projecting section. The shorter frame elements advantageously rest on the base. The projecting section of each side wall element, together with the recess, thus provides a positioning aid, while the frame elements are locked to the base, creating a durable connection. This is particularly true when the frame elements rest on the base, as is considered advantageous.

[0050] The floor provides stability to the connection device and ensures that harmful substances from the work area do not settle on the original floor, but rather accumulate on the floor. From there, they can be washed off at a later time.

[0051] The connection device according to the invention is preferably operated under a vacuum, as is known, for example, from WO 2019 / 7025445 A1. This necessitates that the passage created by the two side walls must be closed. In a further development of the invention, it is therefore proposed that the connection device comprises a ceiling element and at least one second locking device for connecting the ceiling element to the first side wall and / or the second side wall. The ceiling element can thus advantageously be detachably connected to the first or the second side wall, or preferably to both the first and the second side wall. The connection is expediently made via the second locking device(s). Preferably, a second locking device is assigned to each frame element, and in particular, attached to it.

[0052] Preferably, the ceiling element is detachably connected to the two side walls when assembled. For this purpose, the ceiling element has two recesses into which the side wall elements engage when assembled. These recesses can each be designed as a depression in the ceiling element, allowing the side wall to engage in the recess when assembled. This design not only significantly simplifies the assembly of the connection device but also creates a particularly stable overall structure when fully assembled. Preferably, each side wall engages in the recess with its respective side wall element. Advantageously, the side wall element projects beyond the respective frame element, thus extending upwards beyond the frame element when assembled.

[0053] A preferred embodiment is characterized in that the ceiling element forms a second support surface for the frame elements. In the assembled state, the frame elements can rest on their respective support surfaces, resulting in an advantageous force flow when the second locking devices are closed.

[0054] Advantageously, the bearing surfaces are formed by two opposing side walls of ceiling elements. These can be connected via end walls of ceiling elements. This results in a continuous ceiling element wall that extends downwards when installed.

[0055] It is considered particularly advantageous if the ceiling element side walls each have an inner surface on which the second locking device, or part thereof, is located. This can be, in particular, a hook. The inner surfaces are opposite each other.

[0056] In a further development of the invention, it is proposed that the frame elements have connecting means on at least one outer side. The connecting means preferably project from the frame elements and serve to accommodate attachments. These attachments can be a door leaf or another frame element. Preferably, a door leaf is suspended in the connecting means of one frame element when assembled. For this purpose, the door leaf advantageously has at least one hinge with a keyhole fitting. The other door leaf is then expediently suspended in a connecting means of a frame element on the opposite side wall. The advantage of two door leaves over a single-piece door lies in the improved handling for transport purposes.

[0057] Preferably, the door closes automatically. This can be achieved by using a spring at least at one hinge. The door is pre-tensioned into its closed position. After a person passes through, it closes again.

[0058] The connection device according to the invention can be used with only a first and a second side wall. Advantageously, at least one functional opening is formed in at least one of the two side walls. Air can be extracted from the functional opening, for example, by a vacuum maintenance device. Another functional opening can be provided with a filter. It is also possible to equip a functional opening with a disposal bag.

[0059] The connection device can also be built modularly. For this, several side panels are connected to each other. To assemble it, a second shelf is first placed against the first shelf. The first shelf is then connected to the second shelf using a U-shaped coupling element. In the assembled state, this coupling element spans the joint between the first and second shelves. Advantageously, it rests on the respective shelf ledge.

[0060] The aforementioned problem is further solved by a method for connecting a connection device to a workspace, wherein the connection device comprises a first side wall, a second side wall opposite the first side wall, and at least one ceiling element which, in the assembled state, connects the two side walls. The method is characterized according to the invention in that a first sheet is attached to each side wall, that a second sheet is attached to the ceiling element, and that the second sheet is attached to a wall bounding the workspace in an overlapping manner with the first sheets.

[0061] Preferably, the first tarpaulins and the second tarpaulin are only mounted on site, i.e. at the location where the connection device according to the invention is set up.

[0062] The tarpaulins can be attached in various ways. A particularly simple installation method involves inserting the first tarpaulin into the first keder rail of the respective side wall and / or inserting the second tarpaulin into a second keder rail of the ceiling element. This results in a stable construction.

[0063] The invention will now be explained in more detail with reference to a preferred embodiment in conjunction with the attached drawing. The drawing shows: Figure 1 is a schematic representation of an expanded view of a connection device according to the invention; Figure 2 is a schematic representation of a perspective view of the connection device according to the invention. Figure 1 Figure 3 shows a schematic view of the connection device. Figure 1 from the rear; Figure 4 in schematic representation a side view of the connection device according to Figure 1Figure 5 in schematic representation a sectional view along line BB from Figure 4 Figure 6 shows a schematic representation of detail D from Figure 5 Figure 7 shows a schematic representation of detail E. Figure 5 Figure 8 is a schematic representation of a partial sectional view of a detail of the connection device; Figure 9 is a schematic representation of a partial sectional view of another detail of the connection device; Figure 10 is a schematic representation of detail A from Figure 2 Figure 11 shows a schematic top view of a ceiling element of the connection device according to Figure 1 Figure 12 shows a schematic representation of detail F from Figure 11 Figure 13 shows a schematic representation of detail C. Figure 4 Figure 14 shows a schematic representation of an analogous view. Figure 2, however, with the door leaves and the first and second tarpaulins attached; Figure 15 shows a schematic representation of detail H. Figure 14 Figure 16 shows a schematic representation of detail G. Figure 14 ; and Figure 17 shows a schematic representation of the basic structure of a second plane.

[0064] Figure 1 shows a perspective expanded view of a connection device according to the invention.

[0065] The connection device comprises a first side wall 1, a second side wall 2, a first base 3, and a ceiling element 4. The first side wall 1 and the second side wall 2 each have a flat side wall element 5 and two frame elements 6 extending from the side wall element. Preferably, the frame elements 6 are arranged at right angles to the respective side wall element 5.

[0066] In this case, the frame elements 6 enclose the side wall elements 5 on both sides. This means that they enclose the side wall elements 5 laterally, thus protecting the side wall elements 5.

[0067] It should be noted that functional openings 7 are formed in the side walls 1, 2, and in particular in the side wall elements 5. A vacuum maintenance device, for example, can be connected to a functional opening 7 to maintain a vacuum in the work area to which the connection device is attached. Those openings 7 that are not functionally occupied can be covered with cover plates (not shown). Functional openings and their use are known from WO 2019 / 7025445 A1.

[0068] Figure 2Figure 1 shows the connection device in its assembled state. In this state, the two side walls 1 and 2 are arranged on the first base 3 and preferably engage with it, as will be explained in more detail below. The ceiling element 4 sits on the two side walls 1 and 2. Preferably, the two side walls 1 and 2 engage with the ceiling element 4.

[0069] The connection device further comprises at least one first locking device 8, which, in the assembled state, connects the first side wall 1 and, in this case, also the second side wall 2 to the floor, and at least one second locking device 9, which, in the assembled state, connects the first side wall 1 and, in this case, also the second side wall 2 to the ceiling element 4. The arrangement of the locking devices 8, 9 is also shown in Figure 5 clearly illustrated.

[0070] As it turns out Figure 2The first base 3 forms a first support surface 10 on which the frame elements 6 rest in the assembled state. This simplifies the assembly and results in a particularly stable construction. This is especially true when the side walls 1, 2 are detachably connected to the base via the at least one first locking device 8, as is considered the preferred embodiment.

[0071] Furthermore, how it can be seen from Figure 2 As a result, the ceiling element 4 forms at least one second bearing surface 11, with which the ceiling element 4 rests on the frame elements 6 in the assembled state. Preferably, the ceiling element 4 has two opposing second bearing surfaces 11. In order for the frame elements 6 to be supported on the floor 3 and the ceiling element 4, each frame element 6 has a lower and an upper buttress surface 12, as is the case, for example, with Figure 1 emerges.

[0072] The following refers to Figure 3 Figure 1 shows a rear view of the connection device. In the context of the invention, "rear" refers to the side facing the work area when assembled. This view also clearly shows that the ceiling element 4 rests on the frame elements 6 with its second support surfaces 11, which is considered advantageous in itself, although only the rear second support surface 11 is visible here. It is also advantageous in itself that the two side walls 1, 2 rest on the first support surface 10 of the floor 3 with their frame elements 6 when assembled.

[0073] Figure 4 shows a side view of the connection device, and Figure 5 shows a sectional view along line BB according to Figure 4 . Out of Figure 5It is evident that, in the assembled state, the ceiling element 4 is fixed to the two side walls 1, 2 via the second locking devices 9. Furthermore, in the assembled state, the side walls 1, 2 are fixed to the floor 3 via the first locking devices 8.

[0074] Figure 6 detail D shows Figure 5 , which represents the connection between ceiling element 4 and the side walls 1, 2 on a larger scale. The flat side wall element 5 is preferably made of a plastic. The frame element 6 extends from the side wall element 5, preferably at a right angle. The ceiling element 4 rests on the frame element 6. The second bearing surface 11 rests on the butt surface 12 of the frame element 6. The ceiling element 4 can be formed from bent metal parts, as shown in Figure 6 This is indicated. This results in a lightweight yet stable construction.

[0075] A particularly advantageous embodiment is characterized in that the ceiling element 4 has two recesses, which in this case are designed as depressions 13. A side wall element 5 sits in each depression 13. For this purpose, the side wall element 5 extends beyond the respective frame element 6, in this case by a distance S1. This advantageously allows, on the one hand, the flat side wall element 5 to engage in the depression 13 and, on the other hand, the ceiling element 4 to rest on the frame element 6.

[0076] The second locking device 9 is designed as a locking clamp comprising a lever part 14 and a hook part 15. The hook part 15 is preferably arranged on the ceiling element 4. The lever part 14 is preferably arranged on the frame element 6, particularly on the inside of the frame element 6. To fix the ceiling element 4 to the side wall 1, 2, the respective tab 16 of the lever part 14 is placed over the hook part 15, and then the lever 17 of the lever part 14 is tensioned. Such locking clamps are known in principle. In this case, they offer the possibility of a simple, releasable, and durable locking mechanism.

[0077] Figure 7 detail E shows Figure 6, which represents the connection between the first shelf 3 and the side walls 1, 2 on a larger scale. The frame element 6 rests on the first shelf 3. Here, the butt surface 12 of the frame element 6 comes into contact with the first support surface 10 of the first shelf 3. The first shelf 3 can be formed from bent metal parts, as shown in Figure 7 This is indicated. This results in a lightweight yet stable construction.

[0078] Reference numeral 18 indicates a floor recess in which the side wall element 5 is received in the assembled state, as is considered advantageous in itself.

[0079] The first locking device 8 is also designed as a locking tensioner, comprising a lever part 14 and a hook part 15. The hook part 15 is preferably arranged on the base 3. The lever part 14 is preferably arranged on the frame element 6, and in particular on the inside of the frame element 6. To fix the side wall 1, 2 to the base, the respective tab 16 of the lever part 14 is placed over the hook part 15 and then the lever 17 of the lever part 14 is tensioned, as described in connection with Figure 6 has already been described.

[0080] Figure 8 The figure shows a partial section of the connection between ceiling element 4 and side wall 2. This clearly shows that the recess 13 is formed by an inner web 19 and an outer web 20 of the ceiling element 4, as can also be seen in the section. Figure 6as can be seen. In the assembled state, the side wall element 5 is located between the inner web 19 and the outer web 20.

[0081] According to the invention, the ceiling element 4 further comprises a second keder rail 21 and the side wall 2 a first keder rail 22. Tarpaulins can be inserted into each of the two keder rails 21, 22, as is the case in connection with Figure 14 This will be explained in more detail below. The first keder strip 22 and the second keder strip 21 are preferably arranged perpendicular to each other in the assembled state and advantageously run in one plane.

[0082] Figure 9 Figure 1 shows a partial section of the connection between the first base 3 and the side wall 1. This clearly shows that the frame elements 6 rest on a base ledge 23, which preferably extends around the entire surface as shown. The base ledge 23 advantageously forms the first bearing surface 10.

[0083] In its assembled state, the side wall element 5 sits in the floor recess 18, which is advantageously formed by the floor step 23 and an outer step 24.

[0084] Figure 10 detail A shows Figure 2 on an enlarged scale. This makes it clear that the second keder strip 21 advantageously opens upwards, while the first keder strip 22 opens to the side. The two keder strips 21, 22 are expediently arranged relative to each other such that their insertion openings 25, 26 are not obscured by the other keder strip 21, 22 and are freely accessible. For this purpose, the second keder strip 21 is preferably shorter than the maximum width of the ceiling element 4.

[0085] Figure 11Figure 1 shows a top view of the ceiling element 4. The second keder strip 21 extends along a rear side of the ceiling element 4. The rear side is the longitudinal side of the ceiling element 4 that faces the work area when installed.

[0086] Figure 12 detail F shows Figure 11 in an enlarged view. The insertion openings 25, 26 are each freely accessible, and it is advantageously provided that the second keder strip 21 does not extend over the first keder strip 22 in the top view of the ceiling element 4.

[0087] Figure 13 Detail C shows Figure 4on an enlarged scale. This also makes it clear that the two insertion openings 25, 26 are expediently freely accessible. In particular, it is advantageously provided that the insertion opening 25 of the second keder strip 21 is located higher in a side view of the assembled connection device than the insertion opening 26 of the first keder strip 22.

[0088] Figure 14 The previously described connection device is shown in an analogous view. Figure 2 , however, with inserted door leaves 27 and two first tarpaulins 28 and a second tarpaulin 29, each inserted into the first keder rail 22 and the second keder rail 21. As it looks good Figure 14 As can be seen, the first tarpaulins 28 and the second tarpaulin 29 lie on the same plane. This allows for easy connection to the workspace.

[0089] An advantageous embodiment of the invention is characterized in that the first tarpaulins 28 and the second tarpaulin 29 overlap in the assembled state. Figure 14The first tarpaulins 28 lie beneath the second tarpaulin 29, as indicated by the dashed line. The layering can also be reversed. It is considered particularly advantageous if, in the assembled state, the second tarpaulin 29 extends beyond both sides of the respective side walls 1 and 2. It is also considered advantageous if the first tarpaulins 28 extend (in height) beyond the ceiling element 4. This measure makes it possible to connect the connection device to openings to workspaces that are larger than the basic body of the connection device formed by the side walls 1 and 2 and the ceiling element 4. These larger openings can be bridged by the tarpaulins, and the connection device can still be sealed against the wall bordering the workspace.

[0090] For good transportability of the connection device according to the invention, it is advantageous that the connection device has a door that is designed as a double door, i.e., has two door leaves 27. Such door leaves 27 have dimensions and a weight that make them easy to transport and handle.

[0091] Preferably, each door leaf 27 is hinged to a side wall 1, 2, in particular to a frame element 6, as shown in Figure 14 This is evident. For this purpose, each door leaf 27 is preferably detachably suspended on several hinges 30 on the respective side wall 1, 2.

[0092] Figure 15 shows a magnification of detail H Figure 14 . This makes it clear that the joint 30 is firmly connected to the door leaf 27, preferably screwed or riveted.

[0093] Preferably, the hinge 30 is hooked onto the frame element 6 in the assembled state, advantageously by means of a keyhole bracket 31. The keyhole bracket 31 has the reverse shape of a keyhole and is advantageously formed in the hinge 30. This allows each door leaf 27 to be hooked into the side wall 1, 2, in particular into the frame element 6 of the side wall 1, 2. For this purpose, connecting elements 32 are arranged on the outside of each frame element 6, which in this case are designed as mushroom-shaped projections, and into which the respective keyhole bracket 31 is hooked.

[0094] Reference numeral 33 designates a spring that biases the hinge 30 into the closed position of the door leaf 27. The difference to the hinge 30 in Figure 16 (Detail G from Figure 14The difference lies in the fact that this joint does not have a spring. Although only one joint 30 needs to be spring-loaded to pre-tension the door leaf 27 into the closed position, several or all joints can also have corresponding springs 33. In that case, the pre-tension is correspondingly greater.

[0095] Figure 17Figure 1 shows a schematic representation of a section of a second tarpaulin 29. The first tarpaulin 28 is constructed in the same way. The tarpaulin 29 has a keder 34, which is inserted into the second keder strip 21. The area of ​​the keder 34 is reinforced. The actual tarpaulin 29 extends laterally (i.e., in the direction of the keder 34) beyond the keder 34, so that this area can overlap with the first tarpaulin 28, as previously described. When assembled, the second tarpaulin 29 preferably extends beyond the side walls 1, 2 on both sides. In this case, the keder 34 can be shorter on both sides than the length of the second tarpaulin. When assembled, the first tarpaulin 28 preferably extends beyond the ceiling element 4 on both sides. In this case, the keder 34 can be shorter on one side than the length of the first tarpaulin 28. Reference symbol list

[0096] 1. First side wall 2. Second side wall 3. First floor 4. Ceiling element 5. Side wall element 6. Frame element 7. Functional opening 8. First locking device 9. Second locking device 10. First support surface 11. Second support surface 12. Impact surface 13. Recess 14. Lever part 15. Hook part 16. Tab 17. Lever 18. Floor recess 19. Inner web 20. Outer web 21. Second keder rail 22. First keder rail 23. Floor step 24. Outer step 25. Insertion opening 26. Insertion opening 27. Door leaf 28. First tarpaulin 29. Second tarpaulin 30. Hinge 31. Keyhole bracket 32. Fastener 33. Spring 34. Keder

Claims

1. Connecting device for connecting to a work space, having - a first side wall (1), - a second side wall (2) opposite the first side wall (1), - at least one ceiling element (4) which, when fitted, connects the two side walls (1; 2), - wherein each side wall (1; 2) has a first keder strip (22), into which in each case a first tarpaulin (28) can be inserted or is inserted, - wherein the ceiling element (4) has a second keder strip (21), into which a second tarpaulin (29) can be inserted or is inserted, and - wherein the first tarpaulin (28) and the second tarpaulin (29) each have a keder (34) which, when inserted, is held in the respective keder strip (21; 22) only in the region of the keder strips, characterized - in that the first tarpaulin (28) extends beyond the ceiling element and the second tarpaulin (29) extends beyond the side walls (1; 2), and - in that the first tarpaulin (28) and the second tarpaulin (29) overlap when fitted.

2. Connecting device according to Claim 1, characterized in that the first keder strip (22) opens laterally from the respective side wall (1; 2), preferably at a 90° angle, for the passage of the first tarpaulin (28), and / or in that, when the ceiling element (4) is fitted, the second keder strip (21) opens upwards for the passage of the second tarpaulin (29).

3. Connecting device according to Claim 1 or 2, characterized in that the second keder strip (21) has at least one, preferably two, insertion opening(s) (25) for the second tarpaulin (29), and in that the first keder strip (22) and the second keder strip (21) are offset with respect to each other in such a way that, in the direction of the second keder strip (21), the insertion opening(s) (25) thereof is / are not covered by the respective first keder strip (22).

4. Connecting device according to any one of Claims 1 to 3, characterized in that the first keder strip (22) has at least one insertion opening (26) for the first tarpaulin (28), and in that the first keder strip (22) and the second keder strip (21) are offset with respect to each other in such a way that, in the direction of the first keder strip (22), the at least one insertion opening (26) thereof is not covered by the second keder strip (21).

5. Connecting device according to any one of Claims 1 to 4, characterized in that the first tarpaulin (28) extends beyond the keder (34) at least on one side thereof.

6. Connecting device according to any one of Claims 1 to 5, characterized in that the second tarpaulin (29) extends beyond the keder (34) on both sides thereof.

7. Connecting device according to any one of Claims 1 to 6, characterized in that the first side wall (1) and the second side wall (2) have a flat side wall element (5) and two frame elements (6) emerging from the side wall element (5), and in that the first keder strip (22) is in each case fixed to one of the two frame elements (6) or is formed integrally therewith.

8. Connecting device according to any one of Claims 1 to 7, characterized in that the connecting device has at least one first floor (3) and preferably at least one first locking device (8) for connecting the first floor (3) to the first or to the second side wall (1; 2), wherein it is preferably provided that the at least first floor (3) has a preferably circumferential floor step (23) and that the frame elements (6) rest on the floor step (23).

9. Connecting device according to Claim 8, characterized in that the at least first floor (3) has two receptacles which are preferably in the form of a recess (18) and in which the side wall elements (5) engage.

10. Connecting device according to any one of Claims 7 to 9, characterized in that the two frame elements (6) of the first side wall (1) or of the second side wall (2) have inner sides facing each other, wherein preferably the at least one first locking device (8) is arranged on at least one of the inner sides.

11. Connecting device according to Claim 8, characterized in that the at least one first locking device (8) is in the form of a closure clamp with a lever part (14) and a hook part (15), wherein preferably the hook part (15) is fastened to the at least first floor (3) and the lever part (14) to the side wall (1; 2) or vice versa.

12. Connecting device according to any one of Claims 7 to 11, characterized in that the side wall elements (5) extend in their plane of extent beyond the frame elements (6) at least on one side.

13. Connecting device according to any one of Claims 1 to 12, characterized in that the connecting device has a ceiling element (4) and at least one second locking device (9) for connecting the ceiling element (4) to the first side wall (1) and / or to the second side wall (2), wherein it is preferably provided that the ceiling element (4) has two receptacles which are preferably in the form of a recess (13) and in which the side wall elements (5) engage.

14. Connecting device according to Claim 13, characterized in that the ceiling element (4) forms a second support surface (11) for the frame elements (6).

15. Connecting device according to any one of Claims 7 to 14, characterized in that the frame elements (6) have connecting means (32) on their one outer side, wherein it is preferably provided that a door leaf (27) is fitted into the connecting means (32) of a frame element (6) preferably by means of a joint (30) with a keyhole holder (31).

16. Connecting device according to Claim 15, characterized in that, when the door leaf (27) is open, at least one joint (30) is under preloading of a spring (33).

17. Method for connecting a connecting device to a work space, the connecting device having: - a first side wall (1), - a second side wall (2) opposite the first side wall (1), and - at least one ceiling element (4) which, when fitted, connects the two side walls (1; 2), characterized - in that in each case a first tarpaulin (28) is fastened to each side wall (1; 2), - in that a second tarpaulin (29) is fastened to the ceiling element (4), - in that the first tarpaulin (28) extends beyond the ceiling element (4) and the second tarpaulin (29) extends beyond the side walls (1; 2), - in that the second tarpaulin (29) overlapping with the first tarpaulins (28) is fastened to a wall delimiting the work space, - in that the first tarpaulin (28) is in each case pushed into a first keder strip (22) of the respective side wall (1; 2), and / or - in that the second tarpaulin (29) is pushed into a second keder strip (21) of the ceiling element (4).