GB2268841A - Ceiling roses & pull cord switches - Google Patents

Abstract

A light fitting or pull-chord switch is plugged into a unit such as a ceiling rose 13. The rose is provided with sockets 18 connected to the mains eg. by strips and wires. The fitting or switch is wired to an intermediate unit 16 having plugs 17 and being part of, and/or held to the rose by, an eg.screwed cover. A conventional rose can be converted to a socketed version by trapping a two-part member between the rose and ceiling. The rose is wired to a further, socketed member that is screwed to the trapped member and can then receive the light filling or switch. <IMAGE>

Description

IMPROVEMENTS IN OR RELAIING TO 'OELLING ROSES' & 'PULL CORD' SWITCHES.

This invention is for improvcement to 'oeiling Roses, altnoush not excluseively concerned with ceiling poses' as the invention could be applied by the same method deseribed to pull cord switches and other related electrical accessories. It is awkward known mthods to attach the fiex@wire, cable or caord carrying the bulb holder and light assembly to the ceiling rose in particular, if the decorative light fitting is eiready attached to bulb hoider, Also from a safety aspect, uniess the person fitting or attaching the wires from the light assembly to the ceiline rose' aware of the correct poiseity within the electricaline rose' is connect the said wires, then safety protiems could arise, If a new decorative light assemtly or repair or replacement of the bulb holder and cable wire is to be fitted within a r@@@@ tne preparstory work of connecting the wires from the light assembly or bulb holder, can be made into the 'plus Assembly' or part, at any place nut associated to the room it is t b fitted.

One embodiment of the invention as applied to a ceiling rose, will now be described by way of examle, and reference made to the accompanying drawings. One the drawings : - Figure 1. is a plan view of the base of a typical ceiling rose with the cover removed.

Figure n is an elevation viewed in direction of arrow A.

Figure 1.

Figure 3. is the new plug part or component.

Figure 4. is a cross section of a typical ceiling rose cover.

Figure 5. is an underneath view of the ceiling rose base.

Figure 6. is a cross section on X - X (figure 1.).

Figure 7. is e plan view in direction of arrow B (figure of the plug part or component, Figure 8 . is an enlarged cross sectional view on section line - - Y figure 3,).

Figure 9. is an enlarged view on one such plue socket' detail F (figure 6.).

Figure 10. is a plan view inside e new tope of sover which could be used as an alternati fe to cover Figure s .

and would not tequire the plug part or component (figure 7) Figure ii. is a cross sectional view on section line E. (figure 10).

Figure 12. $is a cross sectional view on section line z - z.

Figure 13, is a plan view of conversion component.

Figure 14. is a cross section Y - Y (fig. 13.).

Figure 15, shows conversion' component detached into it s two halves.

Figure 16, is a plen view of ' solcket' part for conversion component (figure 13,., Figure 17. 19 a side elevation viewed in direction of araow e, of figure 16.

The ceiling rose base snown on the draxide Figure 1 comprises of a moulded bade 13 a circumferential screw thread 13a, on to which can be serewed a typicasl cover 14, figure 4. The cover has a central hold 15, which engages part 16a ofplug part or component 16 figure 3, The plug part or component 16 figure 3 and figure 7, consit of a moulded base and two plugs 17.

Although this embodiment of the invention show only two plugs 17 and interconnecting sockets ie; (figure 1.) it would be possible to have three such plugs and sockets (in addition to the two schown). A third plug and socket for earthing purposes. The plugs and sockets do not necessarily have to be of a circular section but could be of any shape that would be both practical and give good electrical contact, (square or rectangular for example). The flex/wire cable or cord snot shown) passes through the hole 45 in cover 14 (figure 4.). It then passes through the centre hole in the plug part 16, it is then constrained by the cord grips 19 (figure 7). the wires then terminate in the correct polarity terminals of the plugs 17, (figure 7.i and secured in position by suitable screws 20 fitted to the terminals.

The 'plug part' 16 can tnen be attacked by means of the plugs into the ceiling rose base 13 3 and the cover 14 screwed in place by meand of corresponding circumferential thread 14e (figure 4.(figure 4.) The inner face of cover 14 will hold in position part 16 by reason that part 16a of plug part lé will engage in taqpered hole 15 in cover 14 as same is screwed into final position. The base 13 (figure 1 & 5) contain the respective live'neutral and if applicable 'loop in' terminals i addition to these,two further terminal sockets 18 are provided fitted with suitable sockets 18a (figures 6 & 9) made from a metal of good electrlcal conductivety qualities.

These are connected to the correct polarity terminals by means of metal strips 21 of good electrical conoutivery and seoured et both ends by means of sopews or nivers 21a (fig 5 8 8). This 15 done on the underside of the celline rose base figure 5 such that when the ceiling rose is first fitted on the ceiling, the strips 21 are not accessible from the plar view side figure 1 of the ceiling rose for safety reasons.

A further emboidment of the invention would be to have fitted to the base 13 of the moulded ceiling rosr base a futher third socket identical to the two sockets 18 previously desoribed, located in close proximitey to the earth terminal 22, This socket would be interconnected to the earth terminal 22 by means of a metal stip of good electrical conductivity in a similar manner as pre-described for the metal strip 21 used on the other sockets 16 (figure 3 & 7) would not be A third plug and terminal would require moulding into the plug component 16 in the correct corresponding position to that of the third socket on base.A further alternative within the embodiment described is that 'plug component' 16 (figure 3 & 7) would not be used and in its place a moulded cover 23 (figure 10, 11, & 12) would have the 'plug terminals' fitted as previously described for 17, (figure 3).

The flex wire cable or cord not shown would pass the hole 24 of the cover 23 (figure 11). It would t@ he constrained in the cord grips 23 (figure 12). The wires would then be connected to correct polarity terminal by means of screws 26 (figure 12).

The cover would then be fitteo to the ceiling pose b@se and seoured in position using suitbaie meall machine screw. Through the holes 27 (figure 10) in cover 23, into threaded ockets 26 figure 1).

As reveiously described a further embodement of the invention, would be to have a third plug for earthing purposes mouide in the requisit postion within the couver 23 to correspond with the third 'earth' socket within the rose base 13 (figure 1).

The 'arth' wire if applicable from the metal decorative light fitting would be connectted to this 'third plug in cover 23, and would have its 'earth' connection once cover 23 was secured in position to ceiling rose base 13 (figure 1.) A further embodiment of the invention would be for a 'conversion' component or part (figure 13) such that if it was decided to retain en existing conventional 'ceiling rose' base already wired and fitted to the ceIling of a room and convert to a 'plug in' type, then conversion' component (fingure 13) would be fitted.

The component figure 13 consists of 'two' parts 29 and 29A located together by means of two lugs 33 (fig 15) which engage in corresponding holes 335. The iugs themeselves by design could be of a different shape t tt shown providing the fuction i that ef ensuring that when the two halves 29 and 29a are 'clipped' together a true circle giving that of nomogeneousness of the 'conversion' component.

The component consisting of 29 and 293 as prevlously described 15 fitted to and existing ceiling rose base as follows, havig removed the fiex/wire and bulb/light fitting from the existing ceiling rose base by removing covbr and the wlive' neurra and if present the earth'wire from the ceiling lese base, it 15 then necessary toi 'siacken' of the 'screws conmaly twos.

holding the existing ceiling rose base in poe ion or; the ceiling the screws are

un-screwed sufficiently to allow the conversion component 29 and 29a (figure 15) to be pushed or inserted in polsition between the existing ceiling rose bade and the ceiling.

The slot 3 30 (figure 13' would allow clearance over the screws and an wires that are connected from power supply or 'ioop! wires to the exiting ceiling rose base. once the to halves 29 and 29a are correctly in position with 'lugs ' 33 (figure 15) correctly in position in holes 33a then the serew holding ceiling rose bade can dbe 'tightened ' back in position entraping the 'conversion' component between the ceiling and ceiling rose base.

It is now necesary to fit short lengths of wire between the existing ceiling rose base 'tive' (L) 'Neutral'(N) and if required 'Earth' (E) terminals, The other ends of these short lenghts of wire would be connected to the coresponding 'Live (L) 'Neutral' (N) and if required 'Earth' (E) terminals in component 35 (fingure 16) The wires are secured in the terminals 36 (figure 17) made from a suitable metal of good electrical conductivety housed in lugs moulded as pat of w fIgure 16) by screws 37 (figue 17), A third terminal would require to be moulded and fitted to 35 (figure 16) if an 'earth ' socket was required.

The socket part 35 Figure 16) would now be secured in position t the 'conversion' conponent (figure 13) by means of two suitable screws passing through holes 39 (fig 16) into corresponding holes 34 (fig 13) the existing ceiling rose base has now been converted by one such method to contain a plug in facility. Such that 'plug part' 16 (fig 3) can be engaged as reviouly described.

A couver such as 14 (fig 4) recviously desctibed would theb be scrwewd into position by means of a ciroumfaerential thread 40 (fig 13).

A further embodiment of the incventior would be for 'pull cord' switches and the like, normally fitted in rooms where their is a danger in fitting conventionel wall type swithes by tesaon @@ humidity and condensation une to steam for exemple, This embodiment is described as follows the base or ceiling part containing moulded sockets as previously described for the ceiling rose would remain secured to the ceiling of the room, the cover would be removed by what ever method. and the 'pull cord' and switch mechanism would then be 'un-plussed' from the base thuse isolating the cover part and switch for repair or repalscemnt,

Claims (1)

1. CLAIMS:1. A ceiling ose base seoured to a fiat surface and can be conected by an electrical supply cable to the main trminals, by means of sockets of a circular Rind contained within the base the electrical connection to the lighting assembly can be made by means of the circular plug parts in either the plug component or cover, 2. A ceiling rose which according to claim 1. has secondary terminals with eircular sockets and has electrical supply from the main terminalg by means of metal strips connected between each 3. A ceiling rose which according to claim 1 can have fitted a suitable plug part with circular type plugs to provide electrical connection to a pendant or light fitting assembly.

   4. A ceiling rose which according to claims h can have fitted a suitable cover with circular type plugs to provide electrical connect ion to light assembly.

   ceiling rose which according to claims 1 & 3 which can have fitted a suitable cover whIch will retain and hold seoute the plug part (claim 3).

   6. A' Conversion' component as hereinberore deseribed phat enables an existing ceiling rose base to be retained in use having already been installed and fitted with electrical supply cab@@e.

   Thus converting to a plug - in type. permltting a plug part with circular type plugs to be fitted and provide electrical conection to light assembly.

   7. pull cerd switches would have base pert wsth eircular sockets suc that switch mechanism having circuler tyope plugs can be un plugged ' Srom the base as hereinbafore deseribed, S. A ceiling rose according to any preceding claim conversion part and pull cord' switch all as herinbefore described with reference to Figues: - 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17, of the accompanying drawings.