WO2011095275A1

WO2011095275A1 - Closable inspection opening for drywall construction

Info

Publication number: WO2011095275A1
Application number: PCT/EP2011/000144
Authority: WO
Inventors: Alfons Jean Knauf
Original assignee: Richter-System Gmbh & Co Kg
Priority date: 2010-02-05
Filing date: 2011-01-14
Publication date: 2011-08-11
Also published as: DE202010002007U1; CN102906357A; RU2015118161A; RU2015118161A3; EP2531669A1; UA109124C2; RU2012139492A; IL221239A0; EP2531669B1; CN102906357B

Abstract

The invention relates to a closable inspection opening (1) for drywall construction, comprising a panel (2) with an opening (3), and a cover (4) for covering the opening (3), wherein the panel (2) has an opening edge (7) defining the opening (3) and the cover (4) has a cover edge (8). The invention is characterised in that an interlocking connection is formed between the opening edge (7) and the cover edge (8) in such a manner that in the assembled state the cover (4) is retained in the opening (3).

Description

Lockable inspection opening for drywall construction

The invention relates to a closable inspection opening for drywall, comprising a plate having an opening and a lid for covering the opening, wherein the plate has an opening edge delimiting the opening and the lid has a lid edge.

Drywall systems allow the construction of interior design structures, such as walls and ceilings. Here are industrial semi-finished products, such as

Plasterboard and metal profiles, used in dry construction. In this way, in particular non-load-bearing interior walls, partitions and ceiling structures, such as suspended ceilings can be produced inexpensively and quickly. These constructions

often include installations, such as electrical, ventilation and plumbing installations. These are after completion of the

Construction hidden in the drywall system. To the

Installations nevertheless for maintenance and repair purposes

To reach, inspection openings are known, which are provided in a wall or ceiling and allow insight and intervention in the interior of the construction. These inspection openings usually have a lid, which has a hinge with a

Frame is connected. The frame is integrated into the wall or ceiling and can be provided with plates, such as plasterboard. There are different configurations of the inspection openings, depending on whether they are intended for mounting in the ceiling or in the wall.

CONFIRMATION COPY The flap openings designed as inspection openings have the disadvantage that they are expensive to manufacture and therefore expensive. Furthermore, they have a comparatively high weight. The invention is based on the object, a closable

To develop revision opening, which is easy to manufacture and inexpensive and has a low weight.

This object is achieved with the features of claim 1. In advantageous embodiments, the dependent claims relate.

To achieve the object, a positive connection between the opening edge and the lid edge is formed such that the lid is held in the assembled state in the opening. By the

Positive locking holds the lid automatically in the opening, with no additional holding elements are required. In particular, when using the inspection opening in a ceiling construction, the lid automatically holds due to gravity in the opening. Because no additional holding elements or the like are required, the inspection opening has only a very few components, namely, in the simplest embodiment, essentially only the plate and the lid. A separate frame for stiffening and for receiving hinges and fasteners can be omitted and allows a frameless design of the plate. As a result, the inspection opening is particularly simple and inexpensive to produce and it has a very low weight. Preferably, the positive connection results only by the shape of the plate and lid, so that additional interlocking elements can be omitted. Another advantage of the closable invention

Revision opening is their low height. The height of the

Inspection opening is determined by the height of the plate and lid. Preferably, the height of the plate corresponds to the height of the remaining cladding material with which the drywall is clad. As a result, the inspection opening can also be used where only very limited space is available. The plate and the lid may each have a first and a second main side, and the opening edge may be formed such that the cross-sectional area of the opening on the first main side is smaller than the cross-sectional area of the second main side. In this embodiment, the lid edge is formed so that the cross-sectional area of the lid on the first main side is larger than the cross-sectional area on the second main side. Preferably, the cross-sectional area of the first main side of the opening corresponds to the cross-sectional area of the first major side of the lid, and the cross-sectional area of the second major side of the opening corresponds to the cross-sectional area of the second major side of the lid. To place the lid this is placed starting from the second main side of the opening associated space in the opening. Due to the smaller cross section of the opening on the first main side of the lid can not fall through the opening and is, in a ceiling construction, held by gravity in the opening automatically.

The opening edge and the lid edge may be formed congruent to each other. This results in a particularly secure fit, so that the lid for a safe in the

Opening is held and on the other hand not tilted in the opening. It is also advantageous that only a small gap between the plate and lid forms. The opening edge and the lid edge can be profiled, wherein the profiling is designed such that the opening edge and the lid edge viewed in cross section at least Cover each other in sections. This can be done from the

Opening edge and / or the lid edge may be formed at least one or more lugs. Preferably, a nose is formed circumferentially. The noses can be provided with different radii. This results in a large overlap and thus a secure hold for the lid. In another embodiment, the opening edge and the lid edge may be formed as a slope. Such a shape is particularly easy to produce. It is also conceivable that in each case at least one step are formed from the opening edge and the lid edge. The cover engages in a defined manner in the opening and can not tilt. Opening edge and lid edge may also be formed so that several or all of the aforementioned design elements are combined. The above-described embodiments each have the advantage that the lid is flush with the plate and the lid

in particular does not protrude beyond one of the two main sides of the plate. Furthermore, the joint, which is formed by the opening edge and the edge of the lid, in this embodiment, particularly smoke-tight because a kind of labyrinth results.

The opening and the lid may be triangular, rectangular or polygonal. Triangular lids are particularly handy and rectangular openings make hidden installations particularly easy to access. For rectangular openings and lids, especially if they are not square, the lid can be easily removed through the opening.

Due to the rectangular, triangular or polygonal basic shape of the opening of the plate and the cover, straight sections may be provided and the straight sections of plate and / or lid may be connected by rounded sections. When using brittle materials there is an increased tendency to breakage in sharp-edged section, especially when straight section and an acute angle meet. To reduce the tendency to break, the straight sections are connected by rounded sections. These rounded sections are radiused. Advantageously, the radius is between 1cm and 10cm. Radii in this area reduce the tendency to break without reducing the opening too much.

The opening and the cover may each have a circular or an oval basic shape. In a circular embodiment, the acute-angle meeting of straight sections

avoided, which is particularly relevant when using brittle materials such as gypsum. These have a greatly increased tendency to break especially in sharp corners.

The lid may be provided with at least one tab which extends beyond the further edge of the lid. The tab is arranged on the first main side of the lid, the larger

Has cross-sectional area. The tab improves the grip of the lid in the opening. The tab may be cohesively, for example by an adhesive bond, or non-positively, for example by means of a screw, be attached to the lid.

The plate may be provided with at least one holding means, which is connectable to the tab. The holding means is designed so that the connection between the holding means and tab is releasable and resealable. This embodiment is particularly suitable for wall constructions, since in wall constructions the lid can not be fixed in the opening solely by gravity. The fixation of the lid in the opening then takes place in wall constructions by the connection between the tab and holding means. The plate may be provided with at least one tab which partially covers the opening. In this embodiment, the tab is arranged on the second main side of the plate, which has the larger cross-sectional area. The tab improves, as described above, the hold of the lid in the opening. The tab may be cohesively, for example by an adhesive bond, or non-positively, for example by means of a screw, be attached to the lid. The lid may be provided with at least one holding means, which is connectable to the tab. As described above, the holding means is designed so that the connection between the holding means and tab is releasable and resealable. This embodiment is particularly suitable for wall constructions, as in wall constructions of the lid not only due to the

Gravity can be fixed in the opening. The fixation of the lid in the opening then takes place in wall constructions by the connection between the tab and holding means. The tab may consist of a metallic material.

Particularly preferred are metallic materials with magnetic properties. Tabs of metallic materials can be produced in a small thickness of inexpensive sheets. It is also conceivable to produce the tab made of plastic.

The holding means may be a magnet. Depending on the design, this magnet can be embedded in the cover or in the plate and thus does not protrude beyond one of the main sides. The magnet is a particularly easy to produce and many times

recloseable connection with one of metallic

Material produced tab. It is also particularly advantageous that the connection is automatic and already at low Intervals is effective, so that the lid is centered after falling below a certain distance automatically in the opening. But there are also other holding means conceivable. Thus, the holding means may also be designed as a hook and loop fastener. This is in environments

advantageous in which no metallic materials may be used. Here, the flap is made of plastic.

Plate and lid can be made of wood and wood materials, such as

Wood fibers, wood shavings, in particular processed into chipboard and chipboard (OSB); and / or of metallic materials, in particular in sheet form. The above-described materials are known for use in dry construction.

Particularly advantageous is the design of the plate and lid made of plasterboard, gypsum fiber boards, mineral fiber boards and / or cement materials. These materials have a favorable

Fire protection behavior and in particular the plate can

be filled or plastered, so that the inspection opening, apart from the joint between the plate and lid fits seamlessly into the drywall. Surprisingly, plates and lids made of gypsum or cement materials, despite the great brittleness on sufficient stability, so that the lid can be removed many times and put back on. Mineral fiber boards are non-flammable and have advantageous sound-absorbing properties. Therefore, mineral fiber boards are in particular for

Ceiling constructions suitable. In particular, the lid may have one or more superimposed plates of the aforementioned type. This results in a multilayer lid. A ceiling construction according to the invention includes a

Inspection opening as previously described. especially the

Embodiment in which the lid is inserted only in the opening, is suitable for a ceiling construction. This is easy to use and has only a few parts. An advantageous ceiling construction is a suspended ceiling, are placed in the plates in the form of cassettes in a supporting structure. Here the inspection opening is designed as a cassette.

Another embodiment of the invention relates to a

Wall construction with a revision opening as described above. In a wall construction, the embodiment of the

Inspection opening with tabs and holding means advantageous because it is securely held in the wall.

Brief description of the drawings

Some embodiments of the lockable inspection opening according to the invention are explained in more detail below with reference to FIGS. These show, in each case schematically:

Fig. 1 is a closable inspection opening

Top view;

Fig. 2 is a closable inspection opening in the

Top view with lid removed;

FIGS. 3 to 8 show various embodiments of the opening edge and edge of a cover opening of an inspection opening in FIG

Cross-section; 9 shows an inspection opening with a circular lid;

10 shows a revision opening with a triangular lid; Fig. 1 1 an inspection opening with additional tabs and holding means;

FIG. 12 is a top view of the inspection opening shown in FIG. 11; FIG.

13 shows an inspection opening with additional tabs and holding means; Fig. 14, the inspection opening shown in Fig. 13 in plan view.

figure description

Figure 1 shows a closable access opening 1 for the

Drywall. In this embodiment, the inspection opening 1 is designed for use in a ceiling construction. The

Inspection opening 1 comprises a plate 2 for integration of the

Inspection opening 1 in the drywall system. The plate 2 is provided with an opening 3 in which a lid 4 for covering the opening 3 is removably arranged. The lid 4 is formed congruent to the opening 3, so that only a small circumferential gap between the plate 2 and 4 lid results. The lid 4 is

positively held in the opening 3, wherein the positive connection is designed so that the lid 4 is held solely in the plate 2 due to gravity. Plate 2 and cover 4 consist in this embodiment of plasterboard. In other embodiments, plate 2 and cover 4 also made of wood and wood materials, such as

Wood fibers, wood shavings, in particular processed into chipboard and chipboard (OSB); Gypsum fiber boards and / or

Cement materials and / or metallic materials, especially in sheet form. Combinations of the aforementioned materials are conceivable.

FIG. 2 shows the inspection opening 1 described in FIG. 1, the cover 4 being shown removed from the opening 3 in this illustration.

FIGS. 3 to 8 show different embodiments of the invention

The figures each show in sections the cross section of the Platte2 and the lid 4. In this case, the plate 2 and the lid 4 each have a first main page 5 and a second main page 6 and the opening 3 has a peripheral opening edge. 7 and the lid 4 has a

circumferential lid edge 8, wherein the opening edge 7 is formed so that the cross-sectional area of the opening 3 on the first main side 5 is smaller than the cross-sectional area of the second main side 6. The lid edge 8 is formed so that the

Cross-sectional area of the lid 4 on the first main side 5 is greater than the cross-sectional area on the second main side 6. The first main page 5 points in the direction of the room and the second main page 6 points in the direction of the ceiling. The opening edge 7 and the

Cover edge 8 are formed congruent to each other. The

Figures show further that the opening edge 7 and the lid edge 8 are profiled, wherein the opening edge 7 and the lid edge 8 viewed in cross section at least partially overlap each other. Due to the rectangular opening 3 of the plate 2 and the lid 4 straight portions 14 are provided and the straight portions 14 of the plate 2 and / or lid 4 are connected via rounded portions 10. The rounded portions 10 form a radius which, depending on the size of the opening 3 is between 1 cm and 10 cm. Figure 3 shows an embodiment of an inspection opening 1 in which from the opening edge 7 and the lid edge 8 each have a step 9 are formed. In the embodiment according to FIG. 4, in each case two steps 9 are provided at the opening edge 7 and the lid edge 8.

In the embodiment of Figure 5, the opening edge 7 and the lid edge 8 are formed as a slope.

Figures 6 and 7 show embodiments in which the

Opening edge 7 and the lid edge 8 sections are formed vertically, wherein from the lid edge 8, a circumferential nose 13 is formed, which projects in the direction of the plate 2 and engages in a congruent profiling in the opening edge 7. The nose 13 is rounded.

Figure 8 shows an embodiment of the inspection opening 1 in which the plate 2 and the cover 4 consists of a doubled mounting plate. In this case, the mounting plates are cut so that at the edges 7, 8 each form a step 9, so that the first main page 5 associated plate of the lid 4 rests on the second main page 6 associated plate of the frame 2. Figure 9 shows a variant of the above-described inspection opening 1, wherein the opening 3 and the lid 4 are circular.

FIG. 10 shows a further variant of the previously described

Inspection opening 1, wherein the opening 3 and the lid 4 are triangular.

Figure 11 shows in section a further embodiment of the above described revision opening 1, wherein the lid 4 is provided on each side with a respective tab 1 1 made of sheet metal, which protrudes beyond the lid edge 8. The tabs 11 are firmly bonded to the lid 4. The plate 2 is provided on each side of the opening 3 with at least one holding means 12, which are placed so that they can be connected to the tab 1 1. The holding means 12 is designed here as a magnet. The embodiment shown here is particularly suitable for wall constructions, since the lid 4 is fixed by the positive connection between the opening edge 7 and lid edge 8 in a predetermined position and is held by the connection of tab 1 1 and holding means 12 in the opening 3.

FIG. 12 shows the embodiment described in FIG. 11 in plan view.

Figure 13 shows in section a further embodiment of the above-described inspection opening 1, in which the plate 2 is provided on each side with a respective tab 11 made of sheet metal, which partially covers the opening 3. The tabs 4 are firmly bonded to the plate 2. The lid 4 is on each side with at least one

Holding means 12 provided, which are placed so that they can be connected to the tab 1 1. The holding means 12 is designed here as a magnet. The embodiment shown here is particularly suitable for wall constructions, since the lid 4 is fixed by the positive connection between the opening edge 7 and lid edge 8 in a predetermined position and by the connection of tab 1 1 and

Holding means 12 is held in the opening 3.

FIG. 14 shows the embodiment described in FIG. 13 in plan view. LIST OF REFERENCE NUMBERS

1 inspection opening

2 frames

3 opening

4 lids

5 first main page

6 second main page

7 opening edge

8 lid margin

9 step

10 rounded section

1 1 tab

12 holding means

13 nose

14 straight section

Claims

claims

A lockable drywall access opening (1) comprising a plate (2) having an opening (3) and a lid (4) for covering the opening (3), the plate (2) defining an opening (3) Opening edge (7) and the lid (4) has a lid edge (8), characterized in that between the opening edge (7) and the lid edge (8)

Positive locking is formed such that the cover (4) in

mounted state in the opening (3) is held.

2. Inspection opening according to claim 1, characterized

characterized in that the plate (2) and the lid (4) each have a first main side (5) and a second main side (6) and that the opening edge (7) is formed so that the

Cross-sectional area of the opening (3) on the first main side (5) is smaller than the cross-sectional area of the second main side (6).

3. inspection opening according to claim 2, characterized

characterized in that the lid edge (8) is formed such that the cross-sectional area of the lid (4) on the first main side (5) is greater than the cross-sectional area on the second main side (6).

4. inspection opening according to claim 3, characterized

characterized in that the opening edge (7) and the lid edge (8) are formed congruent to each other.

5. inspection opening according to one of claims 1 to 4, characterized in that the opening edge (7) and the

Cover edge (8) are profiled, the profiling in such a way is configured that the opening edge (7) and the

Cover edge (8) viewed in cross section at least

Cover each other in sections.

6. inspection opening according to claim 5, characterized

characterized in that from the opening edge (7) and from the lid edge (8) in each case at least one step (9) are formed.

7. inspection opening according to one of claims 1 to 6, characterized in that the opening (3) of the plate (2) and the

Lid (4) each have a triangular, rectangular, or polygonal basic shape.

8. inspection opening according to claim 7, characterized

characterized in that due to the rectangular, triangular or polygonal basic shape of the opening (3) of the plate (2) and the

Cover (4) straight portions (14) are provided and that the straight portions (14) of the plate (2) and / or cover (4) via rounded portions (10) are connected.

9. inspection opening according to one of claims 1 to 6, characterized in that the opening (3) and the cover (4) each have a circular or oval basic shape.

10. inspection opening according to one of claims 1 to 9, characterized in that the cover (4) with at least one tab (1 1) is provided, which projects beyond the lid edge (8).

1 1. Inspection opening according to claim 10, characterized

characterized in that the plate (2) with at least one holding means

(12) is provided, which is connectable to the tab (1 1).

12. Inspection opening according to one of claims 1 to 9, characterized in that the plate (2) with at least one tab (1 1) is provided, which covers the opening (3) partially.

13. Inspection opening according to claim 12, characterized

characterized in that the lid (4) with at least one

Holding means (12) is provided, which with the tab (11)

is connectable.

14. inspection opening according to one of claims 10 to 13, characterized in that the tab (1 1) from a

metallic material and that the holding means (12) is a magnet.

15. Inspection opening according to one of claims 1 to 12, characterized in that the plate (2) and / or the cover (4) made of wood and wood-based materials, plasterboard,

Gypsum fiber boards, mineral fiber boards, cement materials and / or of metallic materials, in particular in sheet form exist.

16. Ceiling construction comprising a revision opening according to one of the preceding claims.

17. Wall construction, comprising an inspection opening according to one of the preceding claims.