GB1564341A

GB1564341A - False ceiling

Info

Publication number: GB1564341A
Application number: GB3776876A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1975-09-18
Filing date: 1976-09-13
Publication date: 1980-04-10
Also published as: NL7610296A; SE7609899L; FR2324822A1; DE2541535A1; ES451635A1; FR2324822B1; CH606676A5

Description

(54) A FALSE CEILING (71) I HANS JULIUS SCHMITT, of 21 Koeningsbergerstrasse, 6303 Hungen, Germany (Fed. Rep.) a German national do hereby declare the invention, for which I pray that a patent may be granted to me, and the method by which it is to be performed, to be particularly described in and by the following statement:- Modern building construction has resulted in considerable changes even to the completion of interior rooms, since partition walls are now made of light construction material and dismountable false ceilings are usually fitted as a space closing means, to which false ceilings the partition walls, which may be used when required, are attached.

All installations, supply pipes and wiring are accommodated in the cavity formed between the actual ceiling and the false ceiling.

Room closing false ceilings now have the object, on the one hand, of rendering access easily possible at any point and at any time to the installations accommodated in the cavity between the actual ceiling and the false ceiling and on the other hand, of preventing or dampening as far as possible the transmission of sound from room to room by way of the cavity between the actual and false ceilings.

Previous constructions of false ceilings have been unable to solve both these important problems simultaneously in a satisfactory manner.

In these known constructions, the sound damping which was initially present to a sufficient extent, was only of a limited duration, because the sound damping devices of these constructions were damaged by the opening and closing of the false ceiling.

The present invention combines, in a technically sufficiently developed form, all of the requirements made on a sound damping and simultaneously easily opened false ceiling.

According to the present invention there is provided a false ceiling panel having upturned side walls, in which the side walls are formed of flexible material, and in which a sound damping box-shaped insert of resilient sheet metal, preferably sheet steel, is fitted in between the sidewalls.

The side walls of the panel are preferably angled at their free ends. Moreover, the side walls of the insert are preferably in tight contact with the side walls of the panel.

Also in accordance with the present invention there is provided a ceiling assembly comprising a plurality of individually dismountable ceiling panels as described above, said panels being supportable by elongate support members mounted on the actual ceiling.

Preferably, the side walls of adjacent ceiling panels overlap and the side walls of the ceiling panels and the support members overlap.

Preferably, the side walls of the ceiling panels and the side walls of the support members are angled at their ends.

It can thus be seen that in order to prevent the passage of sound between the individual dismountable ceiling panels of the ceiling assembly, the present invention utilises a box-shaped insert formed of resilient sheet metal rather than the previously used rigid and unbending plaster boards.

In a preferred embodiment, the passage of sound is reduced by employing ceiling panels and support members which are connected to one another by virtue of their angled-over end portions, instead of the previous use of strips of foam material to fill the joint between adjacent ceiling panels and between the ceiling panels and the support members.

The present invention also makes it possible for the individual parts required for the production of a sound damping, readily dismountable false ceiling to be industrially pre-fabricated at the factory and merely assembled on site in accordance with instructions. In this manner, the assembling work necessary on site is reduced to a fraction of that required for false ceilings of previous construction to made by skilled workers on the site.

The present invention will be further illustrated, by way of example, with reference to the accompanying drawings, in which: Fig. 1 shows the visible surface of a suspended false ceiling (cut-out) comprising elongate support members (2) secured to the actual ceiling and ceiling panels (1) dismountably connected thereto. The joints between adjacent ceiling panels (1) are indicated by (3) and those between the ceiling panels (1) and the support members (2) are indicated by (4).

Fig. 2 shows a cross-section through the cut-out of a false ceiling according to Fig.

1, in which each ceiling panel (1) has upturned side walls (16). The side walls of the panels (1) and the side walls of the support members (2) are angled at their ends and joining between such members is effected at (4) and (6) by overlapping of such angled ends. The box-shaped units have been omitted from this Figure.

Fig. 3 shows a cross-section through three adjacent ceiling panels (1) according to Fig.

1 for indicating the overlapping nature of the side walls (16), providing joining of adjacent panels at (3) and (5). The boxshaped inserts, which have also been omitted from this Figure, are normally located between the side walls of each ceiling panel (1) as shown in Figs. 4 and 5.

Fig. 4 shows a box-shaped damping member (13) formed of sheet metal and having side walls (14).

Fig. 5 shows a cross-section through a ceiling panel in accordance with the present invention in which the box-shaped damping member (13) is inserted therein and the side walls (14) of which are in close contact with the insides of the side walls (16) of the ceiling panel (1).

WHAT 1 CLAIM IS: 1. A false ceiling panel having upturned side walls, in which the side walls are formed of flexible material, and in which a sound damping box-shaped insert of resilient sheet metal is fitted in between the side walls.

2. A false ceiling panel as claimed in claim 1, in which the insert is formed of sheet steel.

3. A false ceiling panel as claimed in claim 1 or 2, in which the side walls of the panel are angled at their free ends.

4. a false ceiling panel as claimed in claim 1, 2 or 3 in which the walls of the insert are in tight contact with the side walls of the panel.

5. A false ceiling panel, substantially as hereinbefore descry wed with reference to and as illustrated in Fig. 5 of the accompanying drawings.

6. A ceiling assembly comprising a plurality of individually dismountable ceiling panels as claimed in any preceding claim, said panels being supportable by elongate support members mounted on the actual ceiling.

7. A ceiling assembly as claimed in claim 6, in which the side walls of adjacent ceiling panels overlap and the side walls of the ceiling panels and the support members overlap.

8. A ceiling assembly as claimed in claim 7, in which the side walls of the ceiling panel and the sidewalls of the support members are angled at their ends.

9. A ceiling assembly as claimed ill claim 6, 7 or 8, in which the sound damping quality is altered by altering the weight of the box-shaped insert.

10. A ceiling assembly as claimed in any one of claims 6 to 9, substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. The present invention also makes it possible for the individual parts required for the production of a sound damping, readily dismountable false ceiling to be industrially pre-fabricated at the factory and merely assembled on site in accordance with instructions. In this manner, the assembling work necessary on site is reduced to a fraction of that required for false ceilings of previous construction to made by skilled workers on the site. The present invention will be further illustrated, by way of example, with reference to the accompanying drawings, in which: Fig. 1 shows the visible surface of a suspended false ceiling (cut-out) comprising elongate support members (2) secured to the actual ceiling and ceiling panels (1) dismountably connected thereto. The joints between adjacent ceiling panels (1) are indicated by (3) and those between the ceiling panels (1) and the support members (2) are indicated by (4). Fig. 2 shows a cross-section through the cut-out of a false ceiling according to Fig. 1, in which each ceiling panel (1) has upturned side walls (16). The side walls of the panels (1) and the side walls of the support members (2) are angled at their ends and joining between such members is effected at (4) and (6) by overlapping of such angled ends. The box-shaped units have been omitted from this Figure. Fig. 3 shows a cross-section through three adjacent ceiling panels (1) according to Fig.