Device for the openable covering of rectangular openings

Device for the reveal of rectangular openings

The invention relates to a device according to the preamble of claim 1.

Barriers are usually covered by hinged doors. An open hinged door protrudes far into the room, in particular the closure with door wings is not dust-proof. There are also barriers with rollover closure. The closure roller blind consists of bars mounted parallel to each other on lateral flexible traction devices. Although such a blind is not in the open state in the room before, but it is even less dustproof and also quite expensive. In contrast, the invention¹■ ■ the task is based on a cheap, space-saving, not in the open position after ausscn projecting device for dust-free covering before. Cupboard openings or the like

Bank details: Deutsche Bank, account number 6300 750 (bank code 700 700 10)

Postal office Munich. Account number 405774-80? CB 1.7. 700 100X0) EPO COPY

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to accomplish.

The solution of this problem is indicated in the characterizing part .des claim 1. According to the invention, therefore, a roller blind is provided with a flexible plastic film as a cover. Such blinds are already known per se for covering windows in buildings. With such a roller blind already a substantial tightness of the seitlilchen edges against the passage of dust particles from the surrounding space is achieved in the interior, as long as it is only ensured that the edges of the blinds lie close to the edges of the cabinet opening. This can be achieved in the simplest way, that at the upper horizontal edge of the opening and at the lower horizontal edge of the opening in each case a curved sealing strip is provided, against which the roller rests in the closed position with a slight train. At the lower end of the .Abdeckfolie a handle bar is provided on the underside of a Velcro strip is attached, which cooperates with a attached to the lower cabinet opening, below the lower curved sealing strip Velcro strip in the closed position. In addition, the longitudinal edges of the cabinet opening can be slightly curved outwards. In this way, when passing the cover sheet by light train. achieved on the handle a rich and thus dense concerns of the side edges of the cover at the side edges of the cabinet opening.

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Another embodiment for the purpose of improving the tightness

is that the side edges of the cover and the cooperating with these side edges of the cabinet opening made of magnetic or ferromagnetic, esp. Permanently magnetic material or contain such material. When the cover over the

lower sealing strip and is pulled down along the side edges, the magnetic side edges of the film come into contact with those of the cabinet opening and are immediately, starting from the upper sealing strip, magnetically tightened over the entire length of the side edges magnetically a dust-tight and almost gas-tight closure is achieved ,

By the features v / eiterer dependent claims, the invention is designed. For a more detailed explanation - including the features of the subclaims - embodiments are described below with reference to the drawing.

Show it: , __

Fig. 1 for spatial orientation a cabinet

with an inventive closure of the cabinet opening.

Fig. 2 is a horizontal section along line II-II ,. on a larger scale, and shows a seal according to the invention dor lateral longitudinal

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edges of the lock.

Fig. 3 is a vertical section through the upper portion of the device, according to line IH-III in Fig. 1, enlarged.

Fig. 4 is a vertical section through the lower side of the closure according to line IV-IV in Fig. 1, enlarged.

Fig. 4a shows in section through the lower side of the closure another (tangential) execution.

Fig. 4b "also shows a vertical section through the lower side of the closure in a simplified version (without lower sealing strip). ■ - ■ ■

Fig. 5 shows in perspective a erfihdungsgemässe device separately, for retrofitting.

6 shows a further device according to the invention for retrofitting, with interior lighting *

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With the device according to the invention, the opening 1 or front of a cabinet or box 2 is covered. Instead of the cabinet or box, it can also be a frame, for example, a picture or an organization board or planning board. The cover should be as dust-free as possible, take up little space, especially in the open position, and be easy to handle. For this purpose, according to the invention, a roller blind 3 with a flexible plastic film (covering film) 4 is provided. The cover 4 is wound in a known manner on a spring roller between lateral guide blanks or unwound.

The lateral longitudinal edges 6 of the cover 4 are in the closed position on the side strips 7 of the frame or cabinet. Suitably, the abutting materials are magnetic for this purpose, wherein the one or the other

dere .. material .permanentmagnetisch- is now the cover

Starting with their lower edge drawn from above to Ujiten over the opening, so the magnetic edge strips 9 of the cover 4 are continuously attracted to the magnetic strips 8 of the frame - thus obtaining the desired dust-tight closure.

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As shown in FIG. 2, a magnetic strip 8 is applied on both sides of the opening 1 of the box 2 on a frame strip 7 made of wood, with each of which a magnetic edge strip 9 of the cover 4 cooperates. This magnetic edge strip 9 may be formed by a welded-on steel foil or else by a "tape", ie a plastic film with embedded in the plastic material, ferromagnetic particles. The magnetic strip 8 and with this the cover 4 are set back relative to the side wall 10 of the cabinet (or the side part of the frame) and thus protected against mechanical damage from the side.

At the upper edge of the opening, ie at the upper end of the magnetic side strips 8, a convex, horizontal sealing strip 11 is provided, which is set back slightly relative to the roller blind 3. About this sealing strip 11, the blind is pulled down ^ what you get on the one hand, the tightness at the top, on the other hand, but also the magnetic edge strips 9 of the cover 4 fed to rest on the magnetic side strips 8 of the frame.

Analogous to the upper sealing strip 11, a convex sealing strip 12 is likewise provided at the lower edge of the opening 1. Below this lower sealing strip 12, below the

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lower, inner edge 13, closure elements are attached to the cabinet or box, with which corresponding closure elements at the bottom of the cover 4 cooperate. These closure elements may conveniently be formed by Velcro strips 14, 15, one of which is attached to the bottom of the cover 4 and another on the cabinet below the sealing strip 12/13.

Suitably, the lower edge of the cover 4 is bordered in a bar 16. This bar 16 is U-shaped and has a handle 17 at its center. On the inner, vertical leg of a Velcro strip 14 is attached, which cooperates with the other Velcro strip 15 below the edge 13 of the sealing strip 12. With the handle or the handle bar, the lower edge of the cover 4 is pushed downwards / inwards over the lower sealing strip 12, wherein the cover film is tightened, and thus in particular their side edges 6, 9 full-system against the ^ lateral strips-7th _8 of the box or frame. At the end of this movement move the Velcro strips 14, 15 against each other to the plant and thus hold the lower edge and thus the entire cover 4 with a light train in the closed position firmly.

According to FIG. 4a, the curved region of the sealing ring closes.

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bar 12 tangentially a geradlieniger area to which the Velcro strip 15 is fastened, with which the closure strip 14 at the bottom of the cover 4 cooperates. The train in the cover 4 is thus transmitted in the tangential direction, ie in the transverse direction on the hook and loop fastener; in the transverse direction of the Velcro has a greater holding power.

For lower demands on the tightness, the simpler embodiment according to FIG. 4 b is sufficient, the lower sealing strip 12 or its curved part being omitted. Otherwise, the same parts are provided with the same reference numbers.

The device can also be retrofitted to existing cabinets, boxes, frames. For this purpose, the blind 3 may be mounted on a support member 18, which in turn can be screwed to the upper edge of the cabinet or box or on an upper frame part. In this case, a separate sealing strip 11 may be provided which can be screwed to the side walls of the cabinet. At the bottom of the cover * 4 an angle-shaped handle 16a is attached. The protruding, horizontal leg 19 serves as a handle. At the bottom of the horizontal leg a Klettstsreifen 14a may be provided, which cooperates with a corresponding Velcro strip at the bottom of the opening of the box. One

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Such Velcro strips and magnetic strips or bands for the lateral edges of the opening or the frame and the sealing strip 11 are each supplied.

In a further embodiment, the support member may be provided simultaneously as a lamp body 20 with sockets for receiving a fluorescent tube 21. This support member 20 is formed substantially in the form of a horizontal Η-profile. On a vertical leg 23 sit sockets 22 for the fluorescent tube 21. The upper, horizontal leg 24 has holes for screwing to the ceiling of a cabinet. The other horizontal leg 25 carries between lugs 26, the blind. 3 At the end of the horizontal leg 25, a vertical cover strip 27 is formed. At a lower, horizontal leg 28 sits the rounded upper sealing strip 11 and the end of this leg 28 is rounded as a sealing strip 11. The equipped with such a closure cabinet is thus provided in a relatively simple, inexpensive way with interior lighting. By the wall parts 23, 28, the blind 3 is separated from the interior of the box 2, - so that when retracting the blinds entrained foreign particles can not get into the interior of the box 2 (analog partition parts are also provided in Fig. 3).

The cover 4 is preferably made of foamed PVC, in

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which are embedded in the transverse direction of fibers. In this way, the cover sheet is at least transversely stretchable so as to maintain its width. This dimensional stability contributes to the tightness of the closure over a long life.

Instead of the fibers, eg steel wires can be provided at regular intervals. The cover film can also be multi-layered. The fibers or a layer of fibers or the steel wires can then be embedded between two layers of film. The cover foil or one of its foil, nschiqhten can also be embossed with transverse ribs Js'ein. Thus, even with particularly large openings or frames a dimensionally stable, tight cover.

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LIST OF REFERENCE NUMBERS

1 opening

.2 cabinet / box

3 roller blind

4 Covering film 5

6 Longitudinal edges of 4

7 lateral bars of 1/2

8th magnetic strips or stripes on

9 Magnetic margins of 4 or up

10 Side walls of 2

11 Sealing strip above -> "" *

12 Sealing strip below

13 inner / lower edge of

14,14a Velcro strips at the bottom of 4 or 15 Velcro strips below 12/13 16,16a strip / handle 17 grip on 16

18 supporting member

19 protruding handle thighs of 16a

20 lamp body

21 Fluorescent tube

22 Version for 21 23,24,25,26,27,28 parts from

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