Static structures (e.g. – buildings) – Sheetlike element assembled parallel to existing wall,... – Assembled with fastening device
Patent
1995-04-18
1998-10-20
Friedman, Carl D.
Static structures (e.g., buildings)
Sheetlike element assembled parallel to existing wall,...
Assembled with fastening device
52712, E04B 200
Patent
active
058229418
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to construction of suspended ceilings, walls and partition walls.
Where reference is made to a perimeter profile in this description, it is to be understood to mean a starting trim or a perimeter trim which are terms used by a skilled man in the art.
The term "plastically deformable" shall be construed to mean easily or readily plastically deformable i.e. by using the fingers and thumb of one's hand.
In the construction of suspended ceilings using un-plasticised polyvinyl chloride (UPVC) tongue and groove panels, wooden batons are screwed to a ceiling grid which comprises a network of T-bars interconnected by means of interlocking clips and tabs usually known in the art as noggins, the T-bars having slits for receipt of the noggins of transverse T-bars. Subsequently the ceiling panels are then stapled to the batons. A tongue and groove panel, for constructing a suspended ceiling or wall, has a tongue side and a groove side, the groove side having a flange through which the staple is punched thus securing the panel to the baton. Having secured a panel to the baton in this manner, the tongue side of a second panel is then inserted into the groove side of a first panel and the second panel is then stapled to a baton and so on until the ceiling or wall, as the case may be, has been constructed.
This prior art system has several disadvantages, one of which is that in constructing a ceiling or wall, the system is very costly because of the amount of material reguired and also because the operation itself is time consuming and laborious. A further disadvantage is that since the staples are punched only through the flange of the panel, this means of attachment is not secure in certain circumstances. Furthermore, in the event of one of the panels of a ceiling becoming damaged and falling of , the entire suspended ceiling has to be disassembled back as far as the nearest wall and then the broken panel is replaced and the other panels repositioned. Obviously this is quite a time consuming and labour intensive operation.
Furthermore, in constructing a ceiling or wall from panels, various types of profiles are used such as perimeter profiles, intermediate or centre join section profiles, external corner profiles, internal corner profiles and pliable joint profiles which are placed regularly at the joint between abutting panels.
Conventionally, a profile is affixed to a wall or timber baton by means of the flange on the profile being screwed or stapled onto the wall or baton. This type of fixing has the disadvantage that the weight of the entire trim is being carried by the screw or staple through the flange. Thus, this is not a very stable means of holding the profile in place.
When constructing a suspended ceiling, it is desirable to fix an angle trim to the existing wall structure so as to provide a base on which the interlocked noggins and T-bars comprising the ceiling grid, may sit. The prior art means of connecting an angle trim to a wall involves screwing the angle trim to the wall then screwing a piece of timber onto the angle trim and then attaching the perimeter profile to the timber by means of staples.
It is also known in the art that when connecting UPVC panels or such like to a wall, a timber lath is screwed onto the wall and then the UPVC panels are screwed or stapled to the timber lath. It is also understood and known in the prior art that T-bars cannot be used in the construction of walls from panels, thus timber laths, not T-bars, are used in order to affix UPVC panels to an existing wall structure. In the prior art, difficulty arises when one encounters pipework protruding from the existing wall. In this case one has to construct the panel wall out from the existing wall structure. Working around obstructions such as pipework is extremely laborious using the prior art materials and method.
In the construction of partition walls, H-shaped channels are used. These channels are supplied with an L-shaped bracket screwed to an end edge of the H-shaped channel. To construct a f
REFERENCES:
patent: 5519976 (1996-05-01), Gee
Friedman Carl D.
Smith Creighton
T & T Fixings Limited
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