EP2378046A2 - Device for bulkheading an opening in a room, in particular a door opening (door bulkhead) - Google Patents

Abstract

The apparatus (1) is fixed between side areas of a space opening in a force-fit manner, particularly between the side bars of a door. Two air openings, particularly two air passages (5) are formed. An adapter unit is provided in the installation position of the apparatus for coarse adjustment of the length of the apparatus.

Description

Technical area

The invention relates to a device, in particular clamping unit, for partitioning a room opening, in particular a door opening (door bulkhead) for clamping between the side rails of a door frame and the use thereof.

State of the art

Often it is necessary, for example, on construction sites to separate rooms with contaminated air, hereinafter black areas, from rooms with unencumbered air, hereinafter white areas. For this purpose, doors that connect the areas must be temporarily closed so that no contaminated air from the black area can penetrate into the white area. Often it is additionally desired that the door can still be passed by people if necessary. Furthermore, it is often desired for reasons of health and safety to supply this fresh air in the formation of hazardous substances in the black area. The term doors is hereinafter used to represent all types of wall openings, it may be any kind of wall opening, such as a door or window cavity, or intended for other use opening, such as a wall opening, which is provided for the insertion of a kitchen hatch , act.

From the WO 2009/056668 A1 a device is known, which can be mounted in the region of the upper end of a door opening and carries a curtain made of plastic sheets, which allows a foreclosure of the door opening. However, the device has various disadvantages due to its construction. The device is placed with its sealing surfaces from the outside on the wall. In the case of a door frame that protrudes from the wall level, a sufficient seal is problematic. Furthermore, there is the possibility that before attaching the device, any existing door leaf must be dismantled to provide the required contact surface on the wall. Finally, the device is limited due to their design on doors whose width in a narrow Tolerance range is. Since the device is secured by means of a telescopic element, which is located spatially in a different plane than the curtain and the cross member carrying the curtain and responsible for the seal, bending moments are also introduced into the device as well as the door carrying the device, which leads to a lead to increased material stress, which is disadvantageous in the case of against mechanical damage sensitive doors, for example in an old building renovation. It is envisaged that the device is clamped with a tensioning device made of two rods with rubber nipples fixed to the end of the rods. On the one hand, the device does not hold properly in the clamped state due to its high weight in the door, since the bearing surface of the rubber nubs for absorbing the forces is much too low. Thus, the one-time tilts due to the small contact surface of the rubber studs in such a way that forms a gap between the device and the door. Furthermore, with a correspondingly strong clamping, the device destroys the door frames, since the force concentrates too much due to the small contact surface of the rubber nipples. In addition, the device can not be cleaned properly due to its box construction after use. Furthermore, the unit has only one air passage opening, so that only one hose can be connected to the unit, with the further disadvantageous consequence that - if the one hose is connected - no further air passage opening is available over which the room fresh air can be supplied , Furthermore, the device can be used only for the negative pressure - and only to a limited extent - in which the intake are occupied directly on the door, with the result that is sucked in the black area directly to the door, again with the result that Under certain circumstances, a short circuit between black and white area forms. Furthermore, only an air roller forms directly on the door, with the result that not all the black area can be flushed with a directional air flow necessary for safety at work, again with the result that efficient dust extraction from the black area is not or only very limited is possible.

DESCRIPTION OF THE INVENTION: Problem, Solution, Advantages

The invention has for its object to provide a device for partitioning a room opening, in particular a door opening (door bulkhead), in which the mentioned disadvantages do not occur or to a lesser extent.

The object is achieved by a device having the features of claim 1 and their use according to claims 10 to 12. The dependent claims relate to advantageous embodiments.

According to the invention the object is achieved by a device which is clamped between the side rails of a door. The device according to the invention is designed so that it is variable in its length in the direction that corresponds in its installation position of the width direction of the door. According to the invention a clamping device is provided which causes this change in length of the device and makes it possible to fix the device between the side rails of a door frame frictionally.

According to the invention, the device has two air passage openings, which allow for the connection or the passage of air hoses, on the other advantageously be closed by a lid, and further - if an Luftdurchtrittsöfnnung is provided with a hose - by leaving open the other air passage opening offers the possibility to supply fresh air to the black area via this. Advantageously, receiving elements for adapter pieces are provided on the device, which serve to extend the device in its variable-length direction, so that there is the possibility of making a coarse adjustment of the length of the device to doors of different widths through the adapter pieces. Device and adapter pieces are preferably made of a metallic material, which is for example a stainless steel. The device and adapter pieces are preferably sheet-like structures made of sheet metal parts.

The device rests with its edges on the side rails of the door frame, wherein preferably sealing elements are provided at the edges of the device, which provide the seal between the door frame and device. The sealing elements may be, for example Plastic lips act, which are preferably made of a soft plastic, such as a rubber material, so that both a sufficient seal as well as a sufficient adhesion of the device with the door frame is made possible, but at the same time a possible damage even a sensitive door frame is avoided. Corresponding sealing elements can likewise be provided on the upper edge of the device in the installed position and on the edges of the adapter pieces and / or the edges of the air passage openings.

Advantageously, the variable in length of the device is realized in that the device has two panel-like, slidably interconnected sliding elements. The sliding elements are designed such that they overlap and are connected to each other in the overlapping area, for example via guide rails. The sliding elements can be moved with the clamping device against each other, whereby the Längenveränderlichkeit the device is effected.

The tensioning device can advantageously be a lockable toothed wheel which engages in a perforated rail, with the perforated rail and the toothed wheel each being connected to one of the two sliding elements. In this case, the hole rail may alternatively be designed as a profiling of one of the sliding elements, which allows engagement of the gear. Advantageously, the gear is actuated by a pivotable lever which engages with a locking element in the gear. The locking element is preferably designed such that it engages only in the movement of the lever in the clamping direction in the gear and so forms a kind of ratchet mechanism for clamping the device, and it is advantageously brought to release the device by another actuator out of engagement with the gear can be. In view of ergonomic operation, the operating element for releasing the tensioning device is attached to the lever for tensioning the tensioning device so that both can be operated with one hand by the same hand.

With regard to an adjustment range of the length of the device that is as large as possible compared with the overall length of the device, it is advantageous for the air passage openings to be in the region of the ends of the device facing away from one another Provide sliding elements. Advantageously, the sliding elements are contoured on their sides facing each other according to the contours of the air passage openings. This means that the contour is designed so that, for example, in circular air passage openings the mutually facing ends of the sliding elements also have a circular arc-like contour, so that on the one hand a maximum Verschschiebbarkeit results, on the other hand in the extended state as possible in the region of the upper and lower Edge of the facility at the same time the largest possible overlap area exists. This is advantageous because in this overlapping region, the guidance of the sliding elements can be realized in each other. A purposeful contouring of the mutually facing ends of the sliding elements does not necessarily simulate the contour of the air passage openings, it is sufficient, for example, to make the contour in the manner of a rectangular recess, so that in the contracted state, the air passage opening of a sliding element at least partially Area of the rectangular recess of the other sliding element is located, while at the same time in the extended state of the sliding element, the non-recessed areas provide an overlap region of both sliding elements for the advantageous guidance of the sliding movement. The supplementary usable adapter pieces have at their ends facing each other on a corresponding, for example, semicircular or rectangular account assignment.

For foreclosure of a room, the device is clamped with closed air passage openings at the upper end of a door opening between the side rails of a door. On the device are preferably provided at its lower edge plastic films, plastic louvers or similar suitable elements, hereinafter referred to as a curtain, allowed a sufficiently airtight closure of the door. A sufficiently airtight closure is to be understood as meaning that the escape of contaminated air from the black area into the white area is prevented to a sufficient extent. Depending on the application, this is already sufficient for a partial closure of the door opening, z. B. if a Air passage from the black area in the white area by a pressure difference between the two areas (eg vacuum position, see below) and a resulting forced air flow from the black area is prevented in the white area. Depending on the degree of overlap of the curtain with the wall and / or the door frame, it is possible that the curtain is pressed against the wall and / or door frame, resulting in a better seal. In these cases, the curtain may also be designed in a manner passable by persons, for example by overlapping plastic sheets; if a higher degree of sealing is desired with simultaneous passability, for example, the use of airtight zippers is possible. Advantageously, a corresponding receptacle, for example a Velcro, may be provided in the region of the lower edge of the device for attaching this curtain.

As fan units are considered at this point and hereinafter devices for the promotion of air of any design, which may have in addition to the necessary elements for the promotion function (for example, fans) and facilities for cleaning or filtering the air. The term fan units also includes interconnections of air-conveying and air-cleaning / -filtering facilities. If required, larger volumes of air can also be two or more fan units are used, while a corresponding number of openings of the device can be used to pass hoses.

The device can also be used for maintaining the vacuum of a room, wherein a fan unit installed in the white area or in the black area, preferably in the immediate vicinity of the device, is connected to the other area via a hose guided through the device and thus generates the required negative pressure in the black area. The fan unit operates in the suction process, if the fan unit is in the white area, or in the printing process, if the fan unit is in the black area.

Furthermore, it is possible to install one or two fan units in the black area for dust extraction and to connect them via hoses through the device to the white area. The hoses can be raised with a support system in order not to be in the way during the work. The system in this construction preferably operates in the printing process by sucking the air through the filters and filtering it through the device out of the black area into the white area.

If the dust is to be specifically extracted at the workplace, the filter fan must be set up directly there. Often, however, it is necessary to perform the dust extraction throughout or a substantial portion of the black area. For this purpose, the extraction point, for example, by the choice of the installation site of the fan unit, be chosen so that the area dedicated to dust extraction between extraction point and device is located. The foreclosure is chosen so that a directed draft, preferably from the device to the extraction point. If the entire space of the black area to be sucked, the extraction point is preferably selected at the location of the room with the greatest distance to the device. In all cases, it is possible and it is achieved that fresh air flows through the open air passage opening of the device.

Furthermore, it is possible to achieve the described extraction in the workplace by the filter fan is set up in the white area, and is connected via the device to the black area via a hose that ends at the workplace or its opening is directly at the workplace. The system works in this structure preferably in the suction process.

Likewise, it is possible, with a fan unit, to convey unencumbered air from a white area through the air passage openings, specifically by means of a hose, into a defined area of the black area. The system then operates in the printing process if the filter fan is installed in the white area or in the suction process if the filter valve is installed in the black area.

Brief description of the drawings

• Fig. 1 eine beispielhafte erfindungsgemäße Einrichtung im ausgezogenen Zustand in einer Ansicht in Einbaulage.
• Fig. 2 eine Einrichtung gemäß Fig. 1 im zusammengeschobenen Zustand.
• Fig. 3 eine weitere Ausführungsform einer Einrichtung mit angesetzten Adapterstücken in Einbaulage.
• Fig. 4 eine weitere Ausführungsform einer Einrichtung in Einbaulage einer Ansicht von oben (Teildarstellung).
• Fig. 5 die Einrichtung gemäß Fig. 4 mit der gelöster Stellung des Spannhebels und damit in diesem Zustand frei auseinanderziehbaren oder zusammenschiebbaren Einrichtung.
• Fig. 6 die Anwendung einer erfindungsgemäßen Einrichtung zur Abschottung eines Raumes.
• Fig. 7 das allgemeine Funktionsprinzip der Klemmeinheit.
• Fig. 8 die Anwendung einer erfindungsgemäßen Einrichtung zur Unterdruckhaltung eines Raumes.
• Fig. 9 die Anwendung einer erfindungsgemäßen Einrichtung zur Staubabsaugung.

The invention will be explained below with reference to exemplary embodiments which are described in FIGS FIGS. 1 to 9 are shown. Show it:

• Fig. 1 an exemplary device according to the invention in the extended state in a view in installation position.
• Fig. 2 a device according to Fig. 1 in the collapsed state.
• Fig. 3 a further embodiment of a device with attached adapter pieces in the installed position.
• Fig. 4 a further embodiment of a device in installation position of a view from above (partial view).
• Fig. 5 the device according to Fig. 4 with the released position of the clamping lever and thus freely expandable or collapsible device in this state.
• Fig. 6 the application of a device according to the invention for foreclosing a room.
• Fig. 7 the general operating principle of the clamping unit.
• Fig. 8 the application of a device according to the invention for keeping the negative pressure of a room.
• Fig. 9 the application of a device according to the invention for dust extraction.

Best way to carry out the invention

In the figures, like parts are given the same reference numerals. In the Fig. 1 The device 1 shown by way of example has essentially two panel-like sliding elements 9 which are connected to one another in a displaceable manner and which can be forced apart with the tensioning device 4. In the region of the ends 10 of the device 1 facing away from one another, the air passage openings 5 are located. The mutually facing edges 11 (FIG. Fig. 2 ) of the sliding elements 9 have a contour corresponding to the air passage openings 5. The device 1 can be extended by adapters 6, in the example shown (FIG. Fig. 3 ) These can be fixed by bolts 16 which are provided on the sliding elements 9, for example with knurled screws, not shown. At the ends 7 facing away from each other, the sliding elements 9 and the adapter pieces 6 have sealing elements 8 which serve to bear against the inner sides of the side rails 2 of a door 3 ( Fig. 2 ).

The in the 4 and 5 shown clamping device 4 is realized in the example shown by the engaging in the hole rail 20 gear 18. The gear 18 is actuated via the clamping lever 19, which engages with the latching element 21 in the gear 18. To release the device 1, the actuating element 17 is provided on the clamping lever 19, with which the locking element 21 can be brought out of engagement with the gear 18. By folding up the clamping lever 19, the gear 18 is then lifted from the hole rail 20, so that the sliding elements 9 of the device 1 are freely verschiebar. To clamp the device in a door frame, the device is then fitted in a released state by moving the sliding elements 9 conclusive in the door frame and then firmly clamped by folding down the clamping lever 19 by the gear 18 engages the hole rail 20 and upon realization of the maximum possible clamping the locking element 21 is brought into contact with the gear 18 via the actuating element 17.

In the in Fig. 6 to 9 shown installation position carries the device 1, for example, two-part, on the dividing line and the door frames overlapping curtain 12, which closes the door depending on the application partially or completely, depending on whether a complete foreclosure of the room should be made or if only a reduction of Air passage area that allows a defined afterflow of air into the black area 15, for example, for dust extraction is desired. It is possible to make the curtain 12 so that it is pressed by a negative pressure in the black area 15 to the door frame, resulting in a sealed foreclosure.

To the fan units 14, air hoses 22 (FIG. Fig. 7 ) and are passed through the air inlet openings 5 of the device 1 in order to lead air out of the black area 15 into the white area 13 or into the black area 15 from the white area 13. At the edges 5a of the passage opening 5 sealing elements 8, not shown in the drawing are provided.

LIST OF REFERENCE NUMBERS

1

terminal unit

2

Holm

3

door

4

jig

5

Air passage openings

5a

margins

6

adapter piece

7

margins

8th

sealing element

9

sliding elements

10

The End

11

margins

12

curtain

13

White area

14

fan unit

15

Black area

16

bolt

17

actuator

18

gear

19

clamping lever

20

perforated rail

21

locking element

22

air hoses

Claims (14)

Device (1), in particular clamping unit, for partitioning a room opening, in particular a door opening (door bulkhead) for clamping between side areas of the room opening, in particular between the side rails of a door frame, the variable in length in the installation position to the width direction of the space opening, in particular the door (3 ) parallel direction (x) is formed, wherein a tensioning device (4) is provided, which causes a change in length in the installation position of the device (1) to the width direction of the space opening, in particular the door (3) parallel direction (x), whereby the device (1) between the side regions of the space opening, in particular between the side rails (2) of the door (3) is non-positively fixed and that the device (1) via air passage openings (5) in particular two air passage opening (5) has. Device according to claim 1, characterized in that adapter pieces (6) are provided for coarse adjustment of the length of the device (1) in the direction (x) parallel to the installation direction of the device (1) to the width direction of the door (3) and, preferably with Knurled screws, nuts and / or quick-release knurled nuts. Device according to one of the preceding claims, characterized in that the device (1) consists essentially of metal, preferably of stainless steel. Device according to one of the preceding claims, characterized in that the edges (7) of the device (1) and / or the edges (5a) of the air passage openings (7) adjoin the upper and / or lateral bars (2) of the door (3). 5) sealing elements (8), preferably made of plastic, are provided. Device according to one of the preceding claims, characterized in that the device (1) has two panel-like, sliding interconnected sliding elements (9) which can be moved against each other with the clamping device (4) and thus cause the Längenveränderlichkeit the device (1). Device according to claim 5, characterized in that at least one respective air passage opening (5) in the region of each of the ends facing away from each other (10) of the sliding elements (9) is provided. Device according to one claim 5 or 6, characterized in that the sliding elements (9) and / or the adapter pieces (6) are contoured on the mutually facing sides (11) corresponding to the contours of the air passage openings (5). Device according to one of the preceding claims, characterized in that the device (1) has a clamping device (4), which preferably has a gear (18) engaging in a perforated rail (20). Device according to claim 8,
characterized,
in that the tensioning device (4) can be unlocked by an actuating element (17), preferably in that a latching element (21) can be brought out of access with the gearwheel (18) Device according to claim 9, characterized in that and the gear (18) by operating a clamping lever (19) is lifted from the hole rail, such that the sliding elements (9) of the device are freely displaceable. Use of a device (1) according to one of claims 1 to 10 for partitioning a room, wherein the device (1) with closed Air passage openings (5) at the upper end of the door opening between the side rails (2) of the door (3) is clamped and the area of the door opening below the device (1) by a device (1) attached to the curtain (12) is sufficiently hermetically sealed , Use of a device (1) according to one of claims 1 to 10 for keeping a room under pressure, wherein the device (1) is clamped at the upper end of the door opening between the side rails (2) of the door (3) and the area of the door opening below the device (1) is sufficiently hermetically sealed by a curtain (12) fastened to the device (1) and at least one fan unit (14), preferably in the immediate vicinity of the device (1), air through at least one air passage opening (5) of the device (1 ) and generates a negative pressure in the black area (15). Use of a device (1) according to one of claims 1 to 10 for dust extraction from a room, wherein the device (1) is clamped at the upper end of the door opening between the side rails (2) of the door (3) and the area of the door opening below the Device (1) by a device (1) attached to the curtain (12) is sufficiently hermetically sealed and at least one, preferably spaced from the device (1) set up fan unit (14) promotes air through at least one air passage opening (5) of the device and generates an air flow in the black area (15), preferably by tracking of fresh air through the other air inlet opening (5) of the device (1) from the device (1) extends to the suction. Use of a device (1) according to one of claims 1 to 10 for ventilating defined areas of a room, wherein the device (1) is clamped at the upper end of the door opening between the side rails (2) of the door (3) and the area of the door opening below the device (1) by a device (1) attached to the curtain (12) is sufficiently hermetically sealed and at least one air passage opening (5) at least one fan unit (14) is connected, which promotes unloaded air from a white area (13) on one side of the door opening in the area to be ventilated in the located on the other side of the door opening black area (15).

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