WO1992006256A1

WO1992006256A1 - Ceiling list system

Info

Publication number: WO1992006256A1
Application number: PCT/DK1991/000305
Authority: WO
Inventors: Ove Østergaard JENSEN
Original assignee: Oestergaard Jensen Ove
Priority date: 1990-10-05
Filing date: 1991-10-07
Publication date: 1992-04-16
Also published as: SE508762C2; SE9301060D0; DK240790D0; AU8616091A; DE4192477T1; SE9301060L

Abstract

In building rooms it is quite customary that in the transition between the walls and the ceiling there are mounted so-called ceiling lists, which are normally spiked to the walls or to the ceiling. When later on a painting or wallpapering work is made it is difficult to remove and remount these ceiling lists, such that the painter or paperhanger will have to carry out a minute stop of the working towards the ceiling list, which accounts for a really considerable increase of the costs of the artisan's work. In connection with the invention it is realized that the ceiling lists, just as certain already known foot lists, may well be designed with a narrow, rigidly mounted support portion, preferably constituted by mutually separated mounting profile elements, adapted to lockingly receive a removable, clipped-on and broader cover list element. Thus, the latter list element will be easy to both remove and remount, and it will then be unimportant whether the painting or wallpaper hanging is not terminated particularly accurately along the ceiling corner. In connection with the invention it is also recognized that the ceiling list, when made hollow, is advantageously usable for a concealed trunking of conductors for highly placed sensors e.g. fire detectors or remote control units.

Description

CEILING LIST SYSTEM

The present invention relates to a ceiling list for mounting along ceiling edges in building rooms. It is quite customary that such ceiling lists are mounted at these corner transitions to the walls, whereby, inter alia, the demands as to the workmanship in the meeting areas between the walls and the ceiling can be reduced. Normally the lists are wooden lists that are secured by simple nailing.

The invention is based on the consideration that it will be highly advantageous to use ceiling lists which are mounted in an easily removable and remountable man¬ ner, viz. with the use of rigidly secured base holding means such as mutually spaced mounting blocks, on which a suitably profiled ceiling list can be clipped on and correspondingly be clipped off for removal, the ceiling list in its mounted condition" visually covering the base holding means.

This will enable a substantial simplification of a more qualified part of the associated painting or paper- hanging work, that is the part of this work dealing with a pure or straightlined termination of the painted or papered areas towards the said corners. These termina¬ tions take a comparatively long time to work out, even for skilled workmen, and they represent a substantial part of the total costs of the painter's work, each time the work is done. With the present invention it is easy to demount the ceiling lists before the work is done, and thereafter all what is necessary is to see that the surface painting or papering goes far enough inwardly or upwardly past the outer lines of those corner sub por¬ tions which will be covered by the ceiling list by the remounting thereof, whereby it will be unimportant whether the said termination is made straightlined. It will also be unimportant whether the fixed base holding means are painted at the same time, as these will be covered anyway by the remounted ceiling lists.

Thus, a painting work may be terminated in a rather unqualified manner adjacent the edges of the ceiling, with the use of a large paint brush or roll. In connec¬ tion with a wall papering it is correspondingly possible to avoid a minute upper cutting of the paper lengths, as these may just be torn off along a ruler held just ap¬ proximately horizontally. Thus, fully acceptable termi¬ nations will be achievable with a minimum of labour time and labour skill.

Accordingly the invention in characterized by the features stated in the characterizing clause of claim 1.

The invention also comprises an entirely different aspect, which, however, is closely related with the easily mountable ceiling lists, viz. the application of of these lists as a means for concealed trunking of electrical communication or power supply wires. There are already certain apparatus types such as fire detec¬ tors that are predestinated to be mounted in a high level in an associated building room, and here it will be highly relevant that such an element can be wire connected with other similar elements in other rooms, or with a central alarm unit, respectively, through wires which, as far as possible, are kept naturally concealed in the relevant rooms.

Such a natural hiding of a wire mounted at a high level will be achievable with the use of ceiling lists, when these according to the invention are shaped with a profilation making them suitable to hold or cover such wires. In this connection it will be particularly advan¬ tageous to use easily remountable lists which can be mounted without previously laid up wires, as the instal¬ lation may otherwise be difficult to work out. The base holding means may be designed such that they are suited for spotwise support of the laid up wire or wires, whereby the wires may well hang down in a festoonlike manner, inasfar as each downhang will disappear automat¬ ically when the cover list is mounted.

According to the invention it is a special possi¬ bility that an entirely new standard for the mounting of sensors for remote controls, e.g. for audio or video equipment, can be introduced, viz. by a more or less integrated mounting in connection with the ceiling list system. For remote control systems operating by infrared light such a high placing of the sensor will be ideal, because generally there will be an easier free sight to the sensor than to a sensor mounted in a lower level. The associated wires can be mounted at the ceiling in all the relevant rooms, with an up- or downlet at a suitable discrete location, and the throughlet of the wires from room to room may be effected in the same high level.

In principle the high level mounting of the wires and the sensor will be advantageous also with the use of mounting means not corresponding to the said ceiling lists, e.g. consisting of thin walled U-channels with associated lid members, but it will be understood that it will be particularly advantageous to use the ceiling lists as here disclosed.

In the following the invention is described in more detail with reference to the drawing, in which:-

Fig. 1 is a perspective view of an upper room cor¬ ner provided with a list system according to the inven¬ tion,

Fig. 2 is a sectional view of this arrangement,

Fig. 3 is a perspective view of mounting units according to a preferred embodiment of the list arrange¬ ment,

Fig. 4 is a corresponding view of an associated cover list.

Fig. 5 and 6 are corresponding views of these parts in a provisionally and finally joined condition, respec¬ tively,

Fig. 7 is a front view of the joined parts,

Fig. 8 is a perspective view of a corner joint, and

Fig. 9 is a front view illustrating the laying out of a wire.

In Fig. 1 is shown a spatial corner, adjacent the ceiling of which there is mounted, along the edges thereof, respective rows of holding blocks 2, suitable for receiving and releasably holding a ceiling list 4. At the rear wall 6 it is indicated that a wall painting or a wall paper hanging is terminated in a rather irre¬ gular or inelegant manner, but this will be unimportant if only the termination is arranged above the lower edge of ceiling list, which is afterwards mounted on the blocks 2. Correspondingly, a painting of the ceiling can be coarsely terminated, when only it extends to beyond the front edge of the list. The blocks 2. The blocks 2 will depend somewhat from the ceiling, whereby they can easily be touched by the painting tool, but of course also this will be unimportant, because the block will be covered by the list. The blocks, alternatively, may be mounted on the walls.

By way of example, in a special list corner element 8 there may be mounted a remote control sensor, with associated wires located inside the lists 2, as dealt with in more detail below.

The more detailed design of the list 2 and the holding blocks 4 will, to a very high degree, be a mat¬ ter of a skilled choice, as the releasable fixing of the list can be achieved in many different ways, partly as known from other systems.

In Fig. 2 is shown, as an example, the cross sec¬ tional shape of the lists 2 and an associated holding block 6. The block has a foremost, downwardly projecting nose portion 8 and an incision 10 in the upper part of its front side. The list 2, here made of extruded alu¬ minium, has a front flange 12 and a bottom flange 14, the latter having an upper part 16 with an outwardly open groove, in which is inserted a foot flange 18 of a rubber sealing list 20 sealing against the wall surface. Adjacent to the top end of the front flange 12 there is provided a rearwardly projecting flange 22 fitting into the incision 10 of the block 6. In the block there is a rearwardly open recess 24 adapted to receive sensor wires 26. The list is mounted by being upwardly dis¬ placed with its front side tilted downwardly, until the upper part 16 on the bottom flange 14 is introduced behind the block nose portion 8, whereafter the list is swung up until the flange 22 has entered into holding engagement with the incision 10, that is the mounting is effected by a pure clipping-on of the list onto the blocks 6.

The rubber list 20 will press resiliently against the wall and thus follow possible irregularities there¬ of, such that a real sealing is established for prevent¬ ing any downfall of dust along the wall from the corner joint area. Moreover, the rubber list will provide for a resilient pressure against the list 2 as required for ensuring a suitably strong holding of the list, yet also enabling the holding flange 22 to be tilted outwardly, when it is desired to demount the list.

However, it will not be too easy to tilt free the entire list 2 at one time, and it could be a preferred alternative, therefore, to grip and pull down the rubber strip 20 from one end of the mounted ceiling list; when the rubber strip has been removed it is easy to tilt out the entire list 2 from its holding engagement with the carrier blocks. Then the rubber strip will have to be remounted in its groove in the list portion 16, before the ceiling list is remounted on the blocks 2, but this is easy to do. With the invention it will be perfectly possible to use both blocks 2 and lists 4 of plastics, whereby the clip on system is easy to arrange, because the inherent resiliency of the plastic can be utilized both for the clipping function itself and for enabling this function to be effected in a progressive manner along the list, while bending the list outwardly. For quality reasons, however, it is preferred to use highly stable elements made of metal, also such that the ceiling list will not architecturally show the character of a cheap trunking channel, which will more or less readily follow the unavoidable irregularities in the horizontal wall sur¬ face just under the ceiling, but rather form a sterling architectural element that can be de- and remounted with intervals of many years. Therefor it is preferred that both the mounting blocks and the ceiling lists be made of metal, and Fig. 3 illustrates such a metallic system, in which not only the ceiling list, but also the mount¬ ing blocks, are provided as units cut from extruded profiles.

To the left in Fig. 3 is shown a profiled holding member shaped as a downwardly open U-profile having an upper base plate 32 that is mountable against a ceiling by means of a screw 34, which, due to the openness of the profile, is easily accessible for mounting up through a hole in the base plate 32. The depending flange portions, 36 and 38, are profiled with mutually different shapes that will need no further detailed description at this place. On the rear flange 36, facing the wall, is provided a projecting rib portion 40, which can be brought to abut the wall, but also be broken away at places where the wall bulges outwardly, such that in a relatively easy manner it is possible to mount a wide¬ ly straight row of holding members 30 along the wall surface.

To each holding member belongs a closing member 42, which is something between a U- and an L-profile and is suited to be brought into a fixed carrier connection with the holding member 30 by being axially introduced therein or thereover. To the left in Fig. 3 the the closing member 42 is shown axially retracted from the holding member 30 or, as well, in a position ready for insertion into the holding member, while lower in Fig. 3 the two parts are shown in their assembled condition.

Fig. 4 shows an associated cover list 4, which consists of a substantially L-shaped aluminium profile having a front side 52 and a lower side 54, the latter having a rear groove 56 for receiving a foot portion of a rearwardly projecting sealing strip 58 of a rubber resilient material. This assembled list 4 is profiled in a manner such that as shown in Fig. 5 it can be moved upwardly into a provisional holding engagement with the closing members 42, viz. with^' the rubber strip 58 forced sealingly against the wall surface and with a lower flange portion 60 located behind a downwardly projecting flange portion 62 at the front side of the closing mem¬ ber 42, and moreover with an upper, rearwardly project¬ ing nose portion 64 in engagement with the front- and lowermost one of two carrier ledges 66 and 68 adjacent the upper front end of the closing member 42. The list 4 is relatively easy to mount in this position, such that e.g. a single fitter can lay up even a long list or rail on several holding members at one time. Thereafter the fitter can concentrate on the more stable mounting of the list on the single holding members or blocks 2, viz. by a more powerful forcing up of the list front portion 52, such that the nose portion 64 is lifted into engage¬ ment with the upper, less protruding carrier ledge 68, while the upper corner of the flange portion 60 slides upwardly along a rearwardly slanting surface portion 70 at the rear side of of the flange portion 62, see also Fig. 6. Hereby the list 4, in general, is forced rear- wardly, such that the rubber strip 58 will be compressed so as to thereby produce a forwardly directed pressure, which serves to stabilize the list in its final mounting position. Fig. 6.

For demounting the list the same can be done as described in connection with Fig. 2, viz. a pulling out of the rubber strip 58 from one end thereof, whereafter the aluminium list 50 itself will be quite easy to tilt off the holding members 2. Another possibility, however, is to displace each of the closing members 42 longitudi¬ nally in order to achieve that these members and there¬ with the cover list leave their carrying engagement with the holding members 30. As apparent from Fig. 7 a front view of the embodiment according to Figs. 3-6 will show the front side 52 of the cover list 50, a top edge area 72 of the holding members 30 abutting the ceiling, and an area 74, which is located between these parts and is constituted by the upper end of the top side flange of the closing member 42. The area portion 74 can be in¬ fluenced to be displaced laterally (as seen in Fig. 7) by introducing a leaf tool in the narrow slot between the parts 52 and 72, and in this manner - as shown to the right in Fig. 7 - it is possible to push out each of the closing members 42 from their engagement with the associated holding members 30. When this is done for all of the holding members the cover list will be free to be demounted without any need of pulling out and later remounting the rubber strip 58 for renewed mounting of the cover list.

In Fig. 8 is illustrated a preferred corner joint between the ceiling lists as here described and shown in detail, but such joints may well be designed otherwise.

If the sealed engagement with the wall is re¬ nounced, then the rubber strip 58 can be avoided, but for the desired holding effect on the cover list it may be used anyway, though now as short strip pieces on the respective holding blocks.

It has been mentioned as an important further aspect of the invention that the list system can be used for trunking electrical wires. For this purpose the embodiment of Figs. 3-8 is particularly advantageous in that the closing members 42 as indicated in Fig. 9 are suited for collection of wires 76 that have previously been festoonwise laid up on lower, protruding flange portions of the holding members 30. After such an easy and provisional laying up of the wires care should just be taken to collect the wires in the closing members, when these are to be mounted, whereby the following axial pushing together may be worked out similarly easily. By the final mounting of the cover list this list can just be moved straightly upwardly, whereby it will automatically bring along the loosely hanging wire portions, i.e. the wire mounting in total will be quite easy to carry out.

As an extreme the cover list may appear as a cover over a wire receiving groove in the wall. When the cover is removed it is possible to paint or to paper the wall up to the lower edge of such a groove in an uncritical manner.

The list system may comprise special elements for holding sensors or for wire in- or outlets or wire joints.

Claims

C L A I M S :

1. A ceiling list for mounting along ceiling edges, characterized in that it is designed according to the clip-on principle, that is with a base mounting, pre¬ ferably consisting of discrete blocks, for fixed mount¬ ing on the ceiling or the wall, and a cover list profile to be removably clipped onto the base mounting or the elements thereof in a manner such that it will visually cover the base mounting means.

2. A ceiling list according to claim 1, charac¬ terized in that the cover list is made of extroded metal, preferably aluminium.

3. A ceiling list according to claim 1, charac¬ terized in that the various parts are designed such that they are suited for concealed trunking of wires behind the cover list.

4. A ceiling list according to claim 3, charac¬ terized in that the base mounting blocks are made as profiled beam members having an outwardly and/or down¬ wardly open groove.

5. A ceiling list according to claim 4, charac¬ terized in that each beam member has an associated groove cover member profiled with an upwardly open groove and with engagement parts for its mounting on the beam member.

6. A ceiling list according to claim 5, charac¬ terized in that both the beam members and the groove cover members are made as extruded metal profiles and that they are joinable by a relative displacement in their longitudinal directions.

7. A ceiling list according to claim 6, charac¬ terized in that the cover list is profiled in a manner such that at its top edge or lower rear edge it can be clipped into a holding engagement with the groove cover members so as to make these accessible from the outside for being displaced longitudinally with the use of a leaf tool introduced through a narrow slot between the top or rear edge of the cover list and the ceiling or the wall, respectively.

8. A ceiling list according to claim 1, charac¬ terized in that the cover list is made with a lower, rear profile flange for holding a sealing strip project¬ ing against the wall and preferably also forming a re¬ silient enabling a resilient clipping on of the cover list onto the base mounting means, when these parts are made as relatively stiff metal profiles.

9. A ceiling list according to claim 8, charac¬ terized by the modification that the resilient material for resiliently supporting the clip on engagement is mounted solely in connection with the base mounting means.

10. A ceiling list according to claim 3, charac¬ terized in that it comprises as a particular element a housing for holding a remote control sensor or for wiring inlet or outlet, respectively.

11. A method of installing in building rooms elec¬ trical units placed in a high level, e.g. smoke sensors or remote control sensors, characterized in that as¬ sociated connector wires are placed in a ceiling list according to claim 3, optionally with the relevant sensor integrally connected with the ceiling list.